TECHNICAL FIELD

The present invention relates to a system and a method for determining a setting of a cutting tool.

BACKGROUND

Some of the cutting tools available on the market today have the possibility of using different settings depending on which application they are used in. For example, it is possible to adjust the cutting diameter of the cutting tool.

However, all possible settings of the cutting tool may not be optimal for a specific operation. For example, a specific setting may introduce unwanted vibrations in the cutting tool which will affect the quality of the performed operation and also reduce the lifetime of the cutting tool.

Today, most cutting tool manufacturers provide recommendations on which tool settings should be used for a specific operation. These settings are then manually set by the operator of the cutting tool by performing manual measurements of the cutting tool. A problem with these manual measurements is that there is a high risk that an incorrect setting is made due to a wrong measurement, which will risk reducing the quality of the performed operation, and also risk reducing the lifetime of the cutting tool.

US 4933 868 A discloses a cutting tool including a motor and control inside the cutting tool for adjusting the radius of the cutting tool. However, the accuracy in determining the setting of the cutting tool has not proven to be satisfying.

SUMMARY OF THE INVENTION

It is an object of the present invention to overcome, or at least partially overcome, said problem by introducing a system and a method for determining a setting of a cutting tool.

The object of the present invention is achieved by means of a system for determining a setting of a cutting tool, wherein the system comprises a cutting tool comprising a first tool part having a longitudinal axis A and a second tool part, wherein the first tool part is a non- adjustable tool part, and wherein the second tool part is radially and/or axially adjustable relative the first tool part, wherein the second tool part comprises a second position sensor arranged at a second position at the second tool part, and wherein the second position sensor is configured to generate second position data comprising information regarding the second position, wherein the system further comprises a processing circuitry, and a memory, wherein the memory comprises instructions executable by the processing circuitry, wherein the first tool part comprises a first position sensor arranged at a first position at the first tool part, and wherein the first position sensor is configured to generate first position data comprising information regarding the first position, wherein the processing circuitry is configured to cause the system to:

-obtain the first position data;

-obtain the second position data;

-determine the first position based on the first position data;

-determine the second position based on the second position data;

-determine a distance and a direction between the first position and the second position at based on the first position and the second position;

-determine a geometrical shape of the first tool part;

-determine a geometrical shape of the second tool part;

-determine a relation between the first position and the geometrical shape of the first tool part that comprises information regarding where at the first tool part the first position is located;

-determine a relation between the second position and the geometrical shape of the second tool part that comprises information regarding where at the second tool part the second position is located; and

-determine a setting of the cutting tool based at least on:

-the determined distance and direction between the first position and the second position,

-the determined relation between the first position and the geometrical shape of the first tool part, and

-the determined relation between the second position and the geometrical shape of the second tool part.

By providing a first position sensor at a first position at the first tool part and a second position sensor at a second position at the second tool part, which are configured to generate first and second position data comprising information regarding the first and second positions it is possible to determine a distance and direction between the first and second positions. By also determining a relation between the first position and the geometrical shape of the first tool part that comprises information regarding where at the first tool part the first position is located, and a relation between the second position and the geometrical shape of the second tool part that comprises information regarding where at the second tool part the second position is located, it is possible to determine how the second tool part is arranged relative the first tool part. Since the first tool part is a non- adjustable tool part, the first position will be a fixed reference position, which results in that the setting of the cutting tool can be determined with a high degree of certainty. Since the system is configured to automatically determine the setting of the cutting tool, the risk of using an incorrect setting of the cutting tool in an operation is decreased, and the risk of a low quality of the performed operation and the risk of reduced lifetime of the cutting tool are thereby reduced.

The first and second position sensors are any suitable type of commercially available sensors configured to generate position data comprising information regarding their position.

The geometrical shape of the first tool part is defined as the three-dimensional shape of the first tool part.

The geometrical shape of the second tool part is defined as the three-dimensional shape of the second tool part.

The setting of the cutting tool is defined as how the adjustable tool part is arranged relative the non-adjustable tool part.

The cutting tool is preferably a metal cutting tool, such as a milling tool, a turning tool, a boring tool, a drilling tool, and/or a reaming tool.

The memory and the processing circuitry are preferably arranged in an electronic unit, for example a computer or a smartphone.

According to an embodiment, the electronic unit is an electronic circuit arranged at the cutting tool.

According to an embodiment, the system further comprises a user interface, and wherein the processing circuitry is further configured to cause the system to present the determined setting of the cutting tool at the user interface. The user interface is preferably a display.

By presenting the setting of the cutting tool at the user interface, the operator can confirm that the cutting tool is arranged according to the desired setting.

According to an embodiment, the first tool part and the second tool part are nonexchangeable tool parts, wherein the cutting tool comprises an identification marker, wherein the identification marker is a machine readable code comprising cutting tool identification data, wherein the system further comprises a reading device configured to read the identification marker, wherein the processing circuitry is further configured to cause the system to:

-read, by the reading device, the identification marker;

-determine the cutting tool identification data by decoding the machine readable code;

-determine a cutting tool information based on the cutting tool identification data, wherein the cutting tool information comprises information regarding:

-the geometrical shape of the first tool part,

-the geometrical shape of the second tool part,

-the relation between the first position and the geometrical shape of the first tool part, and -the relation between the second position and the geometrical shape of the second tool part; wherein the geometrical shape of the first tool part, the geometrical shape of the second tool part, the relation between the first position and the geometrical shape of the first tool part, and the relation between the second position and the geometrical shape of the second tool part are determined based on the cutting tool information.

By providing the cutting tool with an identification marker, the system is able to retrieve cutting tool information, either encoded in the identification marker itself or stored in an external database and associated with the cutting tool identification data. Since the cutting tool information comprises information regarding the geometrical shape of the first tool part, the geometrical shape of the second tool part, the relation between the first position and the geometrical shape of the first tool part, and the relation between the second position and the geometrical shape of the second tool part, this information can be determined by the system and used in the determination of the setting of the cutting tool.

The identification marker can be e.g. a Quick Response code, a High Capacity Colored Two Dimensional Code, a European Article Number code, a DataMatrix code, a Radio frequency identification (RFID) code, or a MaxiCode.

The reading device is any type of suitable device for reading the identification marker, e.g. an optical reader such as a camera, or an RFID-reader.

According to an embodiment, the first tool part comprises a first identification marker, and wherein the second tool part comprises a second identification marker, wherein the first identification marker is a first machine readable code comprising first tool part identification data, and wherein the second identification marker is a second machine readable code comprising second tool part identification data, wherein the system further comprises a reading device configured to read the first and second identification markers, wherein the processing circuitry is further configured to cause the system to:

-read, by the reading device, the first and second identification markers;

-determine the first tool part identification data by decoding the first machine readable code;

-determine the second tool part identification data by decoding the second machine readable code;

-determine a first tool part information based on the first tool part identification data, wherein the first tool part information comprises information regarding:

-the geometrical shape of the first tool part, and

-the relation between the first position and the geometrical shape of the first tool part;

-determine a second tool part information based on the second tool part identification data, wherein the second tool part information comprises information regarding: -the geometrical shape of the second tool part, and

-the relation between the second position and the geometrical shape of the second tool part; wherein the geometrical shape of the first tool part, and the relation between the first position and the geometrical shape of the first tool part are determined based on the first tool part information; and wherein the geometrical shape of the second tool part, and the relation between the second position and the geometrical shape of the second tool part are determined based on the second tool part information.

By providing the first tool part and the second tool part with a respective identification marker, the system is able to retrieve first tool part information and second tool part information, either encoded in the identification markers itself or stored in an external database and associated with the first and second tool part identification data. Since the first and second tool part information comprises information regarding the geometrical shape of the first tool part, the geometrical shape of the second tool part, the relation between the first position and the geometrical shape of the first tool part, and the relation between the second position and the geometrical shape of the second tool part, this information can be determined by the system and used in the determination of the setting of the cutting tool.

The identification marker can be e.g. a Quick Response code, a High Capacity Colored Two Dimensional Code, a European Article Number code, a DataMatrix code, a Radio frequency identification (RFID) code, or a MaxiCode.

The reading device is any type of suitable device for reading the identification marker, e.g. an optical reader such as a camera, or an RFID-reader.

According to an embodiment, the system further comprises an imaging device, wherein the processing circuitry is further configured to cause the system to:

-take an image, by the imaging device, of the first tool part with the first position sensor arranged thereon;

-take an image, by the imaging device, of the second tool part with the second position sensor arranged thereon; wherein the geometrical shape of the first tool part, and the relation between the first position and the geometrical shape of the first tool part are determined by performing image analysis of the taken image of the first tool part with the first position sensor arranged thereon; and wherein the geometrical shape of the second tool part, and the relation between the second position and the geometrical shape of the second tool part are determined by performing image analysis of the taken image of the second tool part with the second position sensor arranged thereon.

By taking an image of the first tool part with the first position sensor arranged thereon and by taking an image of the second tool part with the second position sensor arranged thereon, and subsequently performing image analysis, the system can determine the geometrical shape of the first tool part, the geometrical shape of the second tool part, the relation between the first position and the geometrical shape of the first tool part, and the relation between the second position and the geometrical shape of the second tool part. This information is then used to determine the setting of the cutting tool.

The imaging device being any type of device being configured to take an image, e.g. a camera.

According to an embodiment, the imaging device is configured to take an image comprising both the first tool part with the first position sensor arranged thereon, and the second tool part with the second position sensor arranged thereon.

According to an embodiment, a combination of identification markers and image analysis can be used to determine the geometrical shape of the first tool part, the geometrical shape of the second tool part, the relation between the first position and the geometrical shape of the first tool part, and the relation between the second position and the geometrical shape of the second tool part. In this embodiment, the identification markers are preferably optical readable identification markers, and the reading device being an optical reading device configured to both taking images of the first and second tool parts and reading the optical readable identification markers.

According to an embodiment, the second tool part comprises an insert pocket configured to receive an exchangeable cutting insert.

According to an embodiment, the second tool part comprises a cutting edge, and wherein the processing circuitry is further configured to cause the system to determine a relation between the second position and the cutting edge, and to determine a position of the cutting edge relative the first position.

The relation between the second position and the cutting edge is preferably determined in the same way as the relation between the first position and the geometrical shape of the first tool part, and the relation between the second position and the geometrical shape of the second tool part according to any of the embodiments described above.

The relation between the second position and the cutting edge comprises information regarding the distance and direction between the second position and the cutting edge.

Since it is the cutting edge that is in contact with the workpiece during the cutting operation, the analysis of the quality of the performed cutting operation is facilitated by analyzing the position of the cutting edge relative the fixed reference position.

According to an embodiment, the second tool part comprises a first sub-part having a longitudinal axis B, and a second sub-part, wherein the second sub-part is radially and/or axially adjustable relative the first sub-part, wherein the second position is located at the first sub-part, and wherein the second sub part comprises a third position sensor arranged at a third position at the second sub-part, wherein the third position sensor is configured to generate third position data comprising information regarding the third position, wherein the processing circuitry is further configured to cause the system to:

-obtain the third position data; -determine the third position based on the third position data;

-determine a distance and a direction between the first position and the third position based on the first position and the third position, and/or a distance and a direction between the second position and the third position based on the second position and the third position;

-determine a geometrical shape of the first sub-part;

-determine a geometrical shape of the second sub-part;

-determine a relation between the second position and the geometrical shape of the first sub-part that comprises information regarding where at the first sub-part the second position is located;

-determine a relation between the third position and the geometrical shape of the second sub-part that comprises information regarding where at the second sub-part the third position is located; and

-determine a setting of the cutting tool based at least on:

-the determined relation between the first position and the geometrical shape of the first tool part,

-the determined relation between the second position and the geometrical shape of the first sub- part,

-the determined relation between the third position and the geometrical shape of the second sub-part;

-the determined distance and direction between the first position and the second position at the first sub-part, and

-the determined distance and direction between the first position and the third position and/or the determined distance and direction between the second position and the third position.

By providing the first sub-part with a position sensor at the second position and providing the second sub-part with a position sensor at the third position, a more detailed determination of the setting of the cutting tool is made.

The geometrical shape of the first sub-part is defined as the three-dimensional shape of the first sub-part.

The geometrical shape of the second sub-part is defined as the three-dimensional shape of the second sub-part.

The geometrical shape of the first sub-part, the geometrical shape of the second sub-part, the relation between the second position and the geometrical shape of the first part, and the relation between the third position and the geometrical shape of the second sub-part are preferably determined in the same way as the geometrical shape of the first tool part, and the relation between the first position and the geometrical shape of the first tool part as described above.

The third position sensor is preferably of the same type as the first and second position sensors.

According to an embodiment, the first sub-part is radially adjustable relative the first tool part, and the second sub-part is axially adjustable relative the first tool part.

By having the first sub-part being radially adjustable relative the first tool part and having the second sub-part axially adjustable relative the first tool part, a high number of possible settings of the cutting tool is available.

According to an embodiment, the cutting tool is a boring tool, and the first tool part is a shaft, the first tool part is a slider body, and the second sub-part is an insert cartridge.

According to an embodiment, the cutting tool further comprises a third tool part, wherein the third tool part being radially and/or axially adjustable relative the first tool part, and wherein the third tool part comprises a fourth position sensor arranged at a fourth position at the third tool part, wherein the fourth position sensor is configured to generate fourth position data comprising information regarding the fourth position, wherein the processing circuitry is further configured to cause the system to:

-obtain the fourth position data;

-determine the fourth position based on the fourth position data;

-determine a distance and a direction between the first position and the fourth position based on the first position and the fourth position;

-determine a geometrical shape of the third tool part;

-determine a relation between the fourth position and the geometrical shape of the third tool part that comprises information regarding where at the third tool part the fourth position is located;

-determine a setting of the cutting tool based at least on:

-the determined distance and direction between the first position and the second position at the second tool part,

-the determined distance and direction between the first position and the fourth position,

-the determined relation between the first position and the geometrical shape of the first tool part,

-the determined relation between the second position and the geometrical shape of the second tool part, and

-the determined relation between the fourth position and the geometrical shape of the third tool part. Since the cutting tool further is provided with a third tool part that is radially and/or axially adjustable relative the first tool part, a high number of possible settings of the cutting tool is available.

By determining a distance and a direction between the first position and the fourth position, and a relation between the fourth position and the geometrical shape of the third tool part, a more detailed determination of the setting of the cutting tool is made.

The geometrical shape of the third tool part is defined as the three-dimensional shape of the third tool part.

The geometrical shape of the third tool part, and the relation between the fourth position and the geometrical shape of the third tool part are preferably determined in the same way as the geometrical shape of the first tool part, and the relation between the first position and the geometrical shape of the first tool part as described above.

The fourth position sensor is preferably of the same type as the first and second position sensors.

According to an embodiment the processing circuitry is further configured to cause the system to determine if the second tool part and the third tool part are arranged symmetrically relative the first tool part.

The symmetry between the second and third tool parts affects the amount of vibration in the cutting tool, and in order to evaluate the performance of the cutting tool, it is preferred to know whether the second and third tools parts are symmetrically arranged or not.

The term "symmetrically arranged" is meant to represent a mirror symmetry between the second and third tool parts relative the longitudinal axis A of the first tool part.

According to an embodiment, the system further comprises a vibration measuring device, wherein the vibration measuring device is configured to generate vibration data comprising information regarding an amount of vibration in the cutting tool, wherein the processing circuitry is further configured to cause the system to:

-obtain the vibration data;

-determine the amount of vibration in the cutting tool based on the vibration data;

-determine a relation between the determined amount of vibration in the cutting tool and the determined setting of the cutting tool.

By providing the cutting tool with a vibration measurement device and determining a relation between the amount of vibration in the cutting tool and the setting of the cutting tool, it is possible to evaluate how different settings affect the amount of vibration in the cutting tool. This evaluation can be used to improve subsequent recommendations of settings for the cutting tool for a specific cutting operation.

The vibration measuring device is any type of device configured to measure vibrations, for example an accelerometer attached at the cutting tool. The relation between the determined amount of vibration in the cutting tool and the determined setting of the cutting tool comprises information on the amount of vibration in the cutting tool that arises in a specific cutting operation with a specific setting of the cutting tool.

According to an embodiment, the cutting tool further comprises an adjustment means for adjusting the second tool part relative the first tool part, and wherein the system further comprises a user interface configured to receive a requested setting of the cutting tool, and wherein the system further comprises a control unit, wherein the processing circuitry is further configured to cause the system to:

-obtain a requested setting via the user interface;

-generate a control signal based on the requested setting; and

-control, by the control unit, the adjustment means based on the generated control signal.

By obtaining a requested setting, it is possible for the system to compare the determined setting of the cutting tool with the requested setting in order to determine what adjustments of the setting of the cutting tool that are needed in order to reach the requested setting. By generating a control signal and controlling the adjustment means based on the control signal, the setting of the cutting tool can be adjusted from a distance.

According to an embodiment, the system further comprises a database, and wherein the processing circuitry is further configured to cause the system to store the determined setting of the cutting tool in the database.

By storing the determined setting of the cutting tool in the database, it is possible to trace the history of the cutting tool usage. This can then be used to analyze the reasons for a potential low quality cutting operation or a short lifetime of the cutting tool.

The system is preferably also configured to store further information in the database, for example, information regarding the used cutting data, e.g. cutting depth, cutting feed, and cutting speed, information regarding the workpiece, and information regarding the amount of vibrations in the cutting tool. This further information is preferably associated with the determined setting of the cutting tool in the database.

According to an embodiment, the database, the memory and the processing circuitry are arranged in a common electronic unit. The electronic unit is, for example, a computer or a smartphone.

According to an embodiment, the database is an external database operatively connected to the electronic unit comprising the memory and the processing circuitry.

The object of the present invention is further achieved by a method for determining a setting of a cutting tool comprising a first tool part having a longitudinal axis A and a second tool part, wherein the first tool part is a non-adjustable tool part, and wherein the second tool part is radially and/or axially adjustable relative the first tool part, wherein the method comprises the steps of: -obtaining a first position data comprising information regarding a first position at the first tool part;

-obtaining a second position data comprising information regarding a second position at the second tool part;

-determining the first position based on the first position data;

-determining the second position based on the second position data;

-determining a distance and a direction between the first position and the second position based on the first position and the second position;

-determining a geometrical shape of the first tool part;

-determining a geometrical shape of the second tool part;

-determining a relation between the first position and the geometrical shape of the first tool part that comprises information regarding where at the first tool part the first position is located;

-determining a relation between the second position and the geometrical shape of the second tool part that comprises information regarding where at the second tool part the second position is located; and

-determining a setting of the cutting tool based at least on:

-the determined distance and direction between the first position and the second position at the second tool part,

-the determined relation between the first position and the geometrical shape of the first tool part, and

-the determined relation between the second position and the geometrical shape of the second tool part.

By obtaining a first position data comprising information regarding a first position at the first tool part and a second position data comprising information regarding a second position at the second tool part it is possible to determine a distance and direction between the first and second positions. By also determining a relation between the first position and the geometrical shape of the first tool part, and a relation between the second position and the geometrical shape of the second tool part, it is possible to determine how the second tool part is arranged relative the first tool part. Since the first tool part is a non-adjustable tool part, the first position will be a fixed reference position, which results in that the setting of the cutting tool can be determined with a high degree of certainty. The risk of using an incorrect setting of the cutting tool in an operation is thus decreased, and the risk of a low quality of the performed operation and the risk of reduced lifetime of the cutting tool is thereby reduced. The first position data is preferably generated by a first position sensor arranged at the first position and the second position data is preferably generated by a second position sensor arranged at the second position.

The geometrical shape of the first tool part is defined as the three-dimensional shape of the first tool part.

The geometrical shape of the second tool part is defined as the three-dimensional shape of the second tool part.

The setting of the cutting tool is defined as how the adjustable tool part is arranged relative the non-adjustable tool part.

According to an embodiment, the method further comprises the step of:

-presenting the determined setting of the cutting tool at a user interface.

By presenting the setting of the cutting tool at the user interface, the operator can confirm that the cutting tool is arranged according to the desired setting.

According to an embodiment, the first tool part and the second tool part are nonexchangeable tool parts, wherein the cutting tool comprises an identification marker, wherein the identification marker is a machine readable code comprising cutting tool identification data, wherein the method further comprises the steps of:

-reading the identification marker;

-determining the cutting tool identification data by decoding the machine readable code;

-determining a cutting tool information based on the cutting tool identification data, wherein the cutting tool information comprises information regarding:

-the geometrical shape of the first tool part,

-the geometrical shape of the second tool part,

-the relation between the first position and the geometrical shape of the of the first tool part, and

-the relation between the second position and the geometrical shape of the second tool part; wherein the geometrical shape of the first tool part, the geometrical shape of the second tool part, the relation between the first position and the geometrical shape of the first tool part, and the relation between the second position and the geometrical shape of the second tool part are determined based on the cutting tool information.

By providing the cutting tool with an identification marker, it is possible to retrieve cutting tool information, either encoded in the identification marker itself or stored in an external database and associated with the cutting tool identification data. Since the cutting tool information comprises information regarding the geometrical shape of the first tool part, the geometrical shape of the second tool part, the relation between the first position and the geometrical shape of the first tool part, and the relation between the second position and the geometrical shape of the second tool part, this information can be determined and used in the determination of the setting of the cutting tool.

The identification marker can be e.g. a Quick Response code, a High Capacity Colored Two Dimensional Code, a European Article Number code, a DataMatrix code, a Radio frequency identification (RFID) code, or a MaxiCode.

According to an embodiment, the first tool part comprises a first identification marker, and wherein the second tool part comprises a second identification marker, wherein the first identification marker is a first machine readable code comprising first tool part identification data, and wherein the second identification marker is a second machine readable code comprising second tool part identification data, wherein the method further comprises the steps of:

-reading the first and second identification markers;

-determining the first tool part identification data by decoding the first machine readable code;

-determining the second tool part identification data by decoding the second machine readable code;

-determining a first tool part information based on the first tool part identification data, wherein the first tool part information comprises information regarding:

-the geometrical shape of the first tool part, and

-the relation between the first position and the geometrical shape of the first tool part;

-determining a second tool part information based on the second tool part identification data, wherein the second tool part information comprises information regarding:

-the geometrical shape of the second tool part, and

-the relation between the second position and the geometrical shape of the second tool part; wherein the geometrical shape of the first tool part, and the relation between the first position and the geometrical shape of the first tool part are determined based on the first tool part information; and wherein the geometrical shape of the second tool part, and the relation between the second position and the geometrical shape of the second tool part are determined based on the second tool part information.

By providing the first tool part and the second tool part with a respective identification marker, it is possible to retrieve first tool part information and second tool part information, either encoded in the identification markers itself or stored in an external database and associated with the first and second tool part identification data. Since the first and second tool part information comprises information regarding the geometrical shape of the first tool part, the geometrical shape of the second tool part, the relation between the first position and the geometrical shape of the first tool part, and the relation between the second position and the geometrical shape of the second tool part, this information can be determined and used in the determination of the setting of the cutting tool.

The identification marker can be e.g. a Quick Response code, a High Capacity Colored Two Dimensional Code, a European Article Number code, a DataMatrix code, a Radio frequency identification (RFID) code, or a MaxiCode.

According to an embodiment, the first tool part comprises a first position sensor arranged at the first position, and wherein the second tool part comprises a second position sensor arranged at the second position, wherein the method further comprises the steps of:

-taking an image of the first tool part with the first position sensor arranged thereon;

-taking an image of the second tool part with the second position sensor arranged thereon; wherein the geometrical shape of the first tool part, and the relation between the first position and the geometrical shape of the first tool part are determined by performing image analysis of the taken image of the first tool part with the first position sensor arranged thereon; and wherein the geometrical shape of the second tool part, and the relation between the second position part and the geometrical shape of the second tool part are determined by performing image analysis of the taken image of the second tool part with the second position sensor arranged thereon.

By taking an image of the first tool part with the first position sensor arranged thereon and by taking an image of the second tool part with the second position sensor arranged thereon, and subsequently performing image analysis, the geometrical shape of the first tool part, the geometrical shape of the second tool part, the relation between the first position and the geometrical shape of the first tool part, and the relation between the second position and the geometrical shape of the second tool part can be determined. This information is then used to determine the setting of the cutting tool.

According to an embodiment, a combination of identification markers an image analysis can be used to determine the geometrical shape of the first tool part, the geometrical shape of the second tool part, the relation between the first position and the geometrical shape of the first tool part, and the relation between the second position and the geometrical shape of the second tool part.

According to an embodiment, the second tool part comprises a cutting edge, and wherein the method further comprises the steps of:

-determining a relation between the second position and the cutting edge; and

-determining a position of the cutting edge relative the first position at the first tool part.

The relation between the second position and the cutting edge is preferably determined in the same way as the relation between the first position and the geometrical shape of the first tool part, and the relation between the second position and the geometrical shape of the second tool part according to any of the embodiments described above.

The relation between the second position and the cutting edge comprises information regarding the distance and direction between the second position and the cutting edge.

Since it is the cutting edge that is in contact with the workpiece during the cutting operation, the analysis of the quality of the performed cutting operation is facilitated by analyzing the position of the cutting edge relative the fix reference position.

According to an embodiment, the imaging device is configured to take an image comprising both the first tool part with the first position sensor arranged thereon, and the second tool part with the second position sensor arranged thereon.

According to an embodiment, the second tool part comprises a first sub-part having a longitudinal axis B, and a second sub-part, wherein the second sub-part is radially and/or axially adjustable relative the first sub-part, wherein the second position is located at the first sub-part, wherein the method further comprises the steps of:

-obtaining a third position data comprising information regarding a third position at the second sub-part;

-determining the third position based on the third position data;

-determining a distance and a direction between the first position and the third position based on the first position and the third position, and/or a distance and a direction between the second position and the third position based on the second position and the third position;

-determining a geometrical shape of the first sub-part;

-determining a geometrical shape of the second sub-part;

-determining a relation between the second position and the geometrical shape of the first sub-part that comprises information regarding where at the first sub-part the second position is located;

-determining a relation between the third position and the geometrical shape of the second sub-part that comprises information regarding where at the second sub-part the third position is located;

-determining a setting of the cutting tool based at least on:

-the determined relation between the first position and the geometrical shape of the first tool part,

-the determined relation between the second position and the geometrical shape of the first sub- part,

-the determined relation between the third position and the geometrical shape of the second sub-part, -the determined distance and direction between the first position and the second position, and

-the determined distance and direction between the first position and the third position, and/or the determined distance and direction between the second position and the third position.

By further obtaining a third position data comprising information regarding the third position, a more detailed determination of the setting of the cutting tool is made.

The third position data is preferably generated by a third position sensor arranged at the third position.

The geometrical shape of the first sub-part is defined as the three-dimensional shape of the first sub-part.

The geometrical shape of the second sub-part is defined as the three-dimensional shape of the second sub-part.

The geometrical shape of the first sub-part, the geometrical shape of the second sub-part, the relation between the second position and the geometrical shape of the first part, and the relation between the third position and the geometrical shape of the second sub-part are preferably determined in the same way as the geometrical shape of the first tool part, and the relation between the first position and the geometrical shape of the first tool part as described above.

According to an embodiment, the cutting tool further comprises a third tool part, wherein the third tool part being radially and/or axially adjustable relative the first tool part, wherein the method further comprises the steps of:

-obtaining a fourth position data comprising information regarding a fourth position at the third tool part;

-determining the fourth position based on the fourth position data;

-determining a distance and a direction between the first position and the fourth position based on the first position and the fourth position;

-determining a geometrical shape of the third tool part;

-determining a relation between the fourth position and the geometrical shape of the third tool part that comprises information regarding where at the third tool part the fourth position is located;

-determining a setting of the cutting tool based at least on:

-the determined distance and direction between the first position and the second position,

-the determined distance and direction between the first position and the fourth position, -the determined relation between the first position and the geometrical shape of the first tool part,

-the determined relation between the second position and the geometrical shape of the second tool part, and

-the determined relation between the fourth position and the geometrical shape of the third tool part.

By determining a distance and a direction between the first position and the fourth position, and a relation between the fourth position and the geometrical shape of the third tool part, a more detailed determination of the setting of the cutting tool is made.

The fourth position data is preferably generated by a fourth position sensor arranged at the fourth position.

The geometrical shape of the third tool part is defined as the three-dimensional shape of the third tool part.

The geometrical shape of the third tool part, and the relation between the fourth position and the geometrical shape of the third tool part are preferably determined in the same way as the geometrical shape of the first tool part, and the relation between the first position and the geometrical shape of the first tool part as described above.

According to an embodiment, the method further comprises the step of:

-determining if the second tool part and the third tool part are symmetrically arranged relative the first tool part.

The symmetry between the second and third tool parts affects the amount of vibration in the cutting tool, and in order to evaluate the performance of the cutting tool it is preferred to know whether the second and third tools parts are symmetrically arranged or not.

The term "symmetrically arranged" is meant to represent a mirror symmetry between the second and third tool parts relative the longitudinal axis A of the first tool part.

According to an embodiment, the method further comprises the steps of:

-obtaining vibration data comprising information regarding an amount of vibration in the cutting tool;

-determining the amount of vibration in the cutting tool based on the vibration data; and

-determining a relation between the determined amount of vibration in the cutting tool and the determined setting of the cutting tool.

The vibration data is preferably generated by a vibration measurement device configured to measure the amount of vibration in the cutting tool.

The relation between the determined amount of vibration in the cutting tool and the determined setting of the cutting tool comprises information on the amount of vibration in the cutting tool that arises in a specific cutting operation with a specific setting of the cutting tool.

By determining a relation between the amount of vibration in the cutting tool and the setting of the cutting tool, it is possible to evaluate how different settings affect the amount of vibration in the cutting tool. This evaluation can be used to improve subsequent recommendations of settings for the cutting tool for a specific cutting operation.

According to an embodiment, the cutting tool further comprises an adjustment means for adjusting the second tool part relative the first tool part, wherein the method further comprises the steps of:

-obtaining a requested setting of the cutting tool;

-generating a control signal based on the requested setting;

-controlling the adjustment means based on the generated control signal.

By obtaining a requested setting, it is possible to compare the determined setting of the cutting tool with the requested setting in order to determine what adjustments of the setting of the cutting tool that is needed in order to reach the requested setting. By generating a control signal and controlling the adjustment means based on the control signal, the setting of the cutting tool can be adjusted from a distance.

According to an embodiment, the method further comprises the step of:

-storing the determined setting of the cutting tool in a database.

By storing the determined setting of the cutting tool in the database, it is possible to trace the history of the cutting tool usage. This can then be used to analyze the reasons for a potential low quality cutting operation or a short lifetime of the cutting tool.

The object of the present invention is further achieved by means of a computer program comprising computer readable code means to be run in the system, which computer readable code means when run in the system causes the system to perform the method described above.

The object of the present invention is further achieved by means of a carrier containing the computer program described above, wherein the carrier is one of an electronic signal, optical signal, radio signal or computer readable storage medium.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 schematically illustrates a system for determining a setting of a cutting tool according to a first embodiment of the invention,

Figure 2 schematically illustrates a system for determining a setting of a cutting tool according to a second embodiment of the invention, Figure 3 schematically illustrates a system for determining a setting of a cutting tool according to a third embodiment of the invention,

Figure 4 schematically illustrates a flow chart of example method steps for determining a setting of a cutting tool according to an embodiment of the invention.

DETAILED DESCRIPTION

The disclosed embodiments will now be described more fully hereinafter with reference to the accompanying drawings, in which certain embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided by way of example so that the disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Like reference numbers refer to like elements throughout. The elements illustrated in the drawings are not necessary according to scale. Some elements might have been enlarged in order to clearly illustrate those elements.

Figure 1 schematically illustrates a system for determining a setting of a cutting tool according to a first embodiment of the invention. The system (100) comprises a cutting tool (102) in form of a boring head. The cutting tool (102) comprises a first tool part (103), a second tool part (104), and a third tool part (122). The first tool part having a longitudinal axis A. The first tool part (103) is a non-adjustable tool part. The second tool part (104) and the third tool part (122) are radially adjustable relative the first tool part (103). The first, second and third tool parts (103,104, 122) are non-exchangeable tool parts. The second and third tool parts (104, 122) each comprise an insert pocket (123) with a cutting insert (124) provided with a cutting edge (125) mounted therein. The first tool part (103) comprises a first position sensor (105) arranged at a first position (107) at the first tool part (103). The second tool part (104) comprises a second position sensor (106) arranged at a second position (108) at the second tool part (104). The third tool part (122) comprises a fourth position sensor (126) arranged at a fourth position (127) at the third tool part (122). The cutting tool (102) further comprises an identification marker (114) in form of a machine readable code, such as a Data Matrix-code, comprising cutting tool identification data. The system further comprises an electronic unit (128) comprising a processing circuitry (109), a memory (120), and a user interface (121). The system (100) further comprises an optical reading device (115) operatively connected to the electronic unit (128). The first position sensor (105) is configured to generate first position data comprising information regarding the first position (107), the second position sensor (106) is configured to generate second position data comprising information regarding the second position (108), and the fourth position sensor (126) is configured to generate fourth position data comprising information regarding the fourth position (127). The memory (120) comprises instructions executable by the processing circuitry (109). The processing circuitry (109) is configured to cause the system (100) to:

-obtain the first position data; -obtain the second position data;

-obtain the fourth position data;

-determine the first position (107) based on the first position data;

-determine the second position (108) based on the second position data;

-determine the fourth position (127) based on the fourth position data;

-determine a distance and a direction between the first position (107) and the second position (108) based on the first position (107) and the second position (108);

-determine a distance and a direction between the first position (107) and the fourth position (127) based on the first position (107) and the fourth position (127);

-read, by the optical reading device (115), the identification marker (114);

-determine the cutting tool identification data by decoding the machine readable code;

-determine a cutting tool information based on the cutting tool identification data, wherein the cutting tool information comprises information regarding:

-a geometrical shape of the first tool part (103),

-a geometrical shape of the second tool part (104),

-a geometrical shape of the third tool part (122)

-a relation between the first position (107) and the geometrical shape of the first tool part (103) that comprises information regarding where at the first tool part (103) the first position (107) is located,

-a relation between the second position (108) and the geometrical shape of the second tool part (104) that comprises information regarding where at the second tool part (104) the second position (108) is located, and

-a relation between the fourth position (127) and the geometrical shape of the third tool part (122) that comprises information regarding where at the third tool part (122) the fourth position (127) is located;

-determine the geometrical shape of the first tool part (103) based on the cutting tool information;

-determine the geometrical shape of the second tool part (104) based on the cutting tool information;

-determine the geometrical shape of the third tool part (122) based on the cutting tool information;

-determine the relation between the first position (107) and the geometrical shape of the first tool part (103) based on the cutting tool information; -determine the relation between the second position (108) and the geometrical shape of the second tool part (104) based on the cutting tool information;

-determine the relation between the fourth position (127) and the geometrical shape of the third tool part (122) based on the cutting tool information; and

-determine a setting of the cutting tool (102) based on:

-the determined distance and direction between the first position (107) and the second position (108),

-the determined distance and direction between the first position (107) and the fourth position (127) at the third tool part (122),

-the determined relation between the first position (107) and the geometrical shape of the first tool part (103),

-the determined relation between the second position (108) and the geometrical shape of the second tool part (104), and

-the determined relation between the fourth position (127) and the geometrical shape of the third tool part (122).

Figure 2 schematically illustrates a system for determining a setting of a cutting tool according to a second embodiment of the invention. The system (200) comprises a cutting tool (202) in form of a boring bridge. The cutting tool (202) comprises a first tool part (203), a second tool part (204), and a third tool part (222). The first tool part having a longitudinal axis A. The first tool part (203) is a non-adjustable tool part. The second tool part (204) and the third tool part (222) are radially and axially adjustable relative the first tool part (203). The second tool part (204) comprises a first sub-part (210) having a longitudinal axis B, and a second sub-part (211). The second sub-part (211) is axially adjustable relative the first subpart (210). The second and third tool parts (204, 222) each comprise an insert pocket (223) with a cutting insert (224) provided with a cutting edge (225) mounted therein. The cutting inserts (224) are secured to the second and third tool parts (203,222) by use of fastening clamps (229). The first tool part (203) comprises a first position sensor (205) arranged at a first position (207) at the first tool part (203). The second tool part (204) comprises a second position sensor (206) arranged at a second position (208) at the first sub-part (210). The second tool part (204) further comprises a third position sensor (212) arranged at a third position (219) at the second sub-part (211). The third tool part (222) comprises a fourth position sensor (226) arranged at a fourth position (227) at the third tool part (222). The first tool part (203) further comprises a first identification marker (216) in form of a first machine readable code, such as a Data Matrix-code, comprising first tool part identification data. The second tool part (204) further comprises a second identification marker (217) in form of a second machine readable code, such as a DataMatrix-code, comprising second tool part identification data. The third tool part (222) further comprises a third identification marker (230) in form of a third machine readable code, such as a DataMatrix-code, comprising third tool part identification data. The system (200) further comprises an electronic unit (228) comprising a processing circuitry (209), a memory (220), and a user interface (221). The system (200) further comprises an optical reading device (215) operatively connected to the electronic unit (228). The first position sensor (205) is configured to generate first position data comprising information regarding the first position (207), the second position sensor (206) is configured to generate second position data comprising information regarding the second position (208), the third position sensor (212) is configured to generate third position data comprising information regarding the third position (219), and the fourth position sensor (226) is configured to generate fourth position data comprising information regarding the fourth position (227). The memory (220) comprises instructions executable by the processing circuitry (209). The processing circuitry (209) is configured to cause the system (200) to:

-obtain the first position data;

-obtain the second position data;

-obtain the third position data;

-obtain the fourth position data;

-determine the first position (207) based on the first position data;

-determine the second position (208) based on the second position data;

-determine the third position (219) based on the third position data;

-determine the fourth position (227) based on the fourth position data;

-determine a distance and a direction between the first position (207) and the second position (208) based on the first position (207) and the second position (208);

-determine a distance and a direction between the first position (207) and the third position (219) based on the first position (207) and the third position (219), and/or a distance and a direction between the second position (208) and the third position (219) based on the second position (208) and the third position (219);

-determine a distance and a direction between the first position (207) and the fourth position (227) based on the first position (207) and the fourth position (227);

-read, by the optical reading device (215), the first identification marker (216);

-read, by the optical reading device (215), the second identification marker (217);

-read, by the optical reading device (215), the third identification marker (230);

-determine the first tool part identification data by decoding the first machine readable code;

-determine the second tool part identification data by decoding the second machine readable code;

-determine the third tool part identification data by decoding the third machine readable code; -determine a first tool part information based on the first tool part identification data, wherein the first tool part information comprises information regarding:

-a geometrical shape of the first tool part (203),

-a relation between the first position (207) and the geometrical shape of the first tool part (203) that comprises information regarding where at the first tool part (203) the second position (207) is located;

-determine a second tool part information based on the second tool part identification data, wherein the second tool part information comprises information regarding:

-a geometrical shape of the first sub-part (210),

-a geometrical shape of the second sub-part (211),

-a relation between the second position (208) and the geometrical shape of the first subpart (210) that comprises information regarding where at the first sub-part (210) the second position (208) is located, and

-a relation between the third position (219) and the geometrical shape of the second subpart (211) that comprises information regarding where at the second sub-part (211) the third position (219) is located;

-determine a third tool part information based on the third tool part identification data, wherein the third tool part information comprises information regarding:

-a geometrical shape of the third tool part (222), and

-a relation between the fourth position (227) and the geometrical shape of the third tool part (222) that comprises information regarding where at the third tool part (222) the fourth position (227) is located;

-determine the geometrical shape of the first tool part (203) based on the first tool part information;

-determine the geometrical shape of the first sub-part (210) based on the second tool part information;

-determine the geometrical shape of the second sub-part (211) based on the second tool part information;

-determine the geometrical shape of the third tool part (203) based on the third tool part information;

-determine the relation between the first position (207) and the geometrical shape of the first tool part (203) based on the first tool part information;

-determine the relation between the second position (208) and the geometrical shape of the first sub-part (210) based on the second tool part information; -determine the relation between the third position (219) and the geometrical shape of the second sub-part (211) based on the second tool part information;

-determine the relation between the fourth position (227) and the geometrical shape of the third tool part (222) based on the third tool part information; and

-determine a setting of the cutting tool (202) based on:

-the determined distance and direction between the first position (207) and the second position (208),

-the determined distance and direction between the first position (207) and the third position (219), and/or between the second position (208) and the third position (219),

-the determined distance and direction between the first position (207) and the fourth position (227) at the third tool part (222),

-the determined relation between the first position (207) and the geometrical shape of the first tool part (203),

-the determined relation between the second position (208) and the geometrical shape of the first sub-part (210),

-the determined relation between the third position (219) and the geometrical shape of the second sub-part (211) based on the second tool part information, and

-the determined relation between the fourth position (227) and the geometrical shape of the third tool part (222).

The cutting tool (202) further comprises a vibration measurement device (213). The vibration measuring device (213) is configured to generate vibration data comprising information regarding an amount of vibration in the cutting tool (202). The processing circuitry (209) is further configured to cause the system (200) to:

-obtain the vibration data;

-determine the amount of vibration in the cutting tool (202) based on the vibration data;

-determine a relation between the determined amount of vibration in the cutting tool (202) and the determined setting of the cutting tool (202).

Figure 3 schematically illustrates a system for determining a setting of a cutting tool according to a third embodiment of the invention. The system (300) comprises a cutting tool (302) in form of a boring bridge. The cutting tool (302) comprises a first tool part (303), a second tool part (304), and a third tool part (322). The first tool part having a longitudinal axis A. The first tool part (303) is a non-adjustable tool part. The second tool part (304) and the third tool part (322) are radially and axially adjustable relative the first tool part (303). The second tool part (304) comprises a first sub-part (310) having a longitudinal axis B, and a second sub-part (311). The second sub-part (311) is axially adjustable relative the first subpart (310). The second and third tool parts (304, 322) each comprise an insert pocket (323) with a cutting insert (324) provided with a cutting edge (325) mounted therein. The cutting inserts (324) are secured to the second and third tool parts (303,322) by use of fastening clamps (329). The first tool part (303) comprises a first position sensor (305) arranged at a first position (307) at the first tool part (303). The second tool part (304) comprises a second position sensor (306) arranged at a second position (308) at the first sub-part (310). The second tool part (304) further comprises a third position sensor (312) arranged at a third position (319) at the second sub-part (311). The third tool part (322) comprises a fourth position sensor (326) arranged at a fourth position (327) at the third tool part (322). The system (300) further comprises an electronic unit (328) comprising a processing circuitry (309), a memory (320), and a user interface (321). The system (300) further comprises an imaging device (318) operatively connected to the electronic unit (328). The first position sensor (305) is configured to generate first position data comprising information regarding the first position (307), the second position sensor (306) is configured to generate second position data comprising information regarding the second position (308), the third position sensor (312) is configured to generate third position data comprising information regarding the third position (319), and the fourth position sensor (326) is configured to generate fourth position data comprising information regarding the fourth position (327). The memory (320) comprises instructions executable by the processing circuitry (309). The processing circuitry (309) is configured to cause the system (300) to:

-obtain the first position data;

-obtain the second position data;

-obtain the third position data;

-obtain the fourth position data;

-determine the first position (307) based on the first position data;

-determine the second position (308) based on the second position data;

-determine the third position (319) based on the third position data;

-determine the fourth position (327) based on the fourth position data;

-determine a distance and a direction between the first position (307) and the second position (308) based on the first position (307) and the second position (308);

-determine a distance and a direction between the first position (307) and the third position (319) based on the first position (307) and the third position (319), and/or a distance and a direction between the second position (308) and the third position (319) based on the second position (308) and the third position (319);

-determine a distance and a direction between the first position (307) and the fourth position (327) based on the first position (307) and the fourth position (327);

-take an image, by the imaging device (318), of the first tool part (303) with the first position sensor (305) arranged thereon; -take an image, by the imaging device (318), of the first sub-part (310) with the second position sensor (306) arranged thereon;

-take an image, by the imaging device (318), of the second sub-part (311) with the third position sensor (312) arranged thereon;

-taken an image, by the imaging device (318), of the third tool part (322) with the fourth position sensor (326) arranged thereon;

-determine a geometrical shape of the first tool part (303) by performing image analysis of the taken image of the first tool part (303) with the first position sensor (305) arranged thereon;

-determine a geometrical shape of the first sub-part (310) by performing image analysis of the taken image of the first sub-part (310) with the second position sensor (306) arranged thereon;

-determine a geometrical shape of the second sub-part (311) by performing image analysis of the taken image of the second sub-part (311) with the third position sensor (312) arranged thereon;

-determine a geometrical shape of the third tool part (322) by performing image analysis of the taken image of the third tool part (322) with the fourth position sensor (326) arranged thereon;

-determine a relation between the first position (307) and the geometrical shape of the first tool part (303) that comprises information regarding where at the first tool part (303) the first position (307) is located by performing image analysis of the taken image of the first tool part (303) with the first position sensor (305) arranged thereon;

-determine a relation between the second position (308) and the geometrical shape of the first sub-part (310) that comprises information regarding where at the first sub-part (310) the second position (308) is located by performing image analysis of the taken image of the first sub-part (310) with the second position sensor (306) arranged thereon;

-determine a relation between the third position (319) and the geometrical shape of the second sub-part (311) that comprises information regarding where at the second sub-part (311) the third position (319) is located by performing image analysis of the taken image of the second sub-part (311) with the third position sensor (312) arranged thereon;

-determine a relation between the fourth position (327) and the geometrical shape of the third tool part (322) that comprises information regarding where at the third tool part the fourth position is located by performing image analysis of the taken image of the third tool part (322) with the fourth position sensor (326) arranged thereon;

-determine a setting of the cutting tool (302) based on:

-the determined distance and direction between the first position (307) and the second position (308) at the first sub-part (310), -the determined distance and direction between the first position (307) and the third position (319), and/or between the second position (308) and the third position (319),

-the determined distance and direction between the first position (307) and the fourth position (327) at the third tool part (322),

-the determined relation between the first position (307) and the geometrical shape of the first tool part (303),

-the determined relation between the second position (308) and the geometrical shape of the first sub-part (310),

-the determined relation between the third position (319) and the geometrical shape of the second sub-part (311) based on the second tool part information, and

-the determined relation between the fourth position (327) and the geometrical shape of the third tool part (322).

Figure 4 schematically illustrates a flow chart of example method steps for determining a setting of a cutting tool according to an embodiment of the invention. The method (400) comprises the steps of:

-obtaining (401) a first position data comprising information regarding a first position

(107.207.307) at the first tool part (103,203,303);

-obtaining (402) a second position data comprising information regarding a second position

(108.208.308) at the second tool part (104,204,304);

-determining (404) the first position (107,207,307) based on the first position data;

-determining (405) the second position (108,208,308) based on the second position data;

-determining (407) a distance and a direction between the first position (107,207,307) and the second position (108,208,308) based on the first position (107,207,307) and the second position (108,208,308);

-determining (419) a geometrical shape of the first tool part (103,203,303);

-determining (420) a geometrical shape of the second tool part (104,204,304);

-determining (421) a relation between the first position (107,207,307) and the geometrical shape of the first tool part (103,203,303) that comprises information regarding where at the first tool part (103,203,303) the first position (107,207,307) is located;

-determining (422) a relation between the second position (108,208,308) and the geometrical shape of the second tool part (104,204,304) that comprises information regarding where at the second tool part (104,204,304) the second position (108,208,308) is located;

-determining (427) a setting of the cutting tool (102,202,302) based on: -the determined distance and direction between the first position (107,207,307) and the second position (108,208,308)

-the determined relation between the first position (107,207,307) and the geometrical shape of the first tool part (103,203,303),

-the determined relation between the second position (108,208,308) and the geometrical shape of the second tool part (104,204,304).

In some embodiments, the method may further comprise the steps of:

-reading (409) the identification marker (114);

-determining (412) the cutting tool identification data by decoding the machine readable code;

-determining (415) a cutting tool information based on the cutting tool identification data, wherein the cutting tool information comprises information regarding:

-the geometrical shape of the first tool part (103),

-the geometrical shape of the second tool part (104),

-the relation between the first position (107) and the geometrical shape of the of the first tool part (103), and

-the relation between the second position (108) and the geometrical shape of the second tool part (104).

In some embodiments, the method may further comprise the steps of:

-reading (410) the first and second identification markers (216,217);

-determining (413) the first tool part identification data by decoding the first machine readable code;

-determining (416) the second tool part identification data by decoding the second machine readable code;

-determining (417) a first tool part information based on the first tool part identification data, wherein the first tool part information comprises information regarding:

-the geometrical shape of the first tool part (203), and

-the relation between the first position (207) and the geometrical shape of the first tool part (203);

-determining (418) a second tool part information based on the second tool part identification data, wherein the second tool part information comprises information regarding:

-the geometrical shape of the second tool part (204), and -the relation between the second position (208) and the geometrical shape of the second tool part (204).

In some embodiments, the method may further comprise the steps of:

-taking (411) an image of the first tool part (303) with the first position sensor (305) arranged thereon;

-taking (414) an image of the second tool part (304) with the second position sensor (306) arranged thereon.

In some embodiments, the method may further comprise the steps of:

-obtaining (403) a third position data comprising information regarding a third position

(219.319) at the second sub-part (211,311);

-determining (406) the third position (219,319) based on the third position data;

-determining (408) a distance and a direction between the first position (207,307) and the third position (219,319) based on the first position (207,307) and the third position

(219.319), and/or a distance and a direction between the second position (208,308) and the third position (219,319) based on the second position (208,308) and the third position

(219.319);

-determining (423) a geometrical shape of the first sub-part (210,310);

-determining (424) a geometrical shape of the second sub-part (211,311);

-determining (425) a relation between the second position (208,308) and the geometrical shape of the first sub-part (210,310) that comprises information regarding where at the first sub-part (210,310) the second position (208,308) is located;

-determining (426) a relation between the third position (219,319) and the geometrical shape of the second sub-part (211,311) that comprises information regarding where at the second sub-part (211,311) the second position (219,319) is located;

-determining (428) a setting of the cutting tool (202,302) based on:

-the determined relation between the first position (207,307) and the geometrical shape of the first tool part (203,303),

-the determined relation between the second position (208,308) and the geometrical shape of the first sub-part (210,310),

-the determined relation between the third position (219,319) and the geometrical shape of the second sub-part (211,311),

-the determined distance and direction between the first position (207,307) and the second position (208,308), and -the determined distance and direction between the first position (207,307) and the third position (219,319), and/or the determined distance and direction between the second position (208,308) and the third position (219,319);

In some embodiments, the method may further comprise the steps of:

-obtaining (429) vibration data comprising information regarding an amount of vibration in the cutting tool (202);

-determining (430) the amount of vibration in the cutting tool (202) based on the vibration data;

-determining (431) a relation between the determined amount of vibration in the cutting tool (202) and the determined setting of the cutting tool (202);

In some embodiments, the method may further comprise the steps of:

-obtaining (432) a requested setting of the cutting tool (102,202,302);

-generating (433) a control signal based on the requested setting;

-controlling (434) the adjustment means based on the generated control signal.

Figure 4 illustrates an example of method steps. The method can comprise additional steps. Some of the method steps can be performed simultaneously. The method steps can be performed in a different order.

Although the description above contains a plurality of specificities, these should not be construed as limiting the scope of the concept described herein but as merely providing illustrations of some exemplifying embodiments of the described concept. It will be appreciated that the scope of the presently described concept fully encompasses other embodiments which may become obvious to those skilled in the art, and that the scope of the presently described concept is accordingly not to be limited. Reference to an element in the singular is not intended to mean "one and only one" unless explicitly so stated, but rather "one or more." All structural and functional equivalents to the elements of the above-described embodiments that are known to those of ordinary skill in the art are expressly incorporated herein by reference and are intended to be encompassed hereby. Moreover, it is not necessary for an apparatus or method to address each and every problem sought to be solved by the presently described concept, for it to be encompassed hereby. In the exemplary figures, a broken line generally signifies that the feature within the broken line is optional.