Technical Field

The present invention relates to a gearbox for moving abrasive brushes performing the cleaning process in deburring machines, which are used in the metalworking industry and also for cleaning undesired surface wastes such as rust (corrosion), welding slag, cutting and boring edge burrs occurring on the metal piece to be worked.

The present invention relates to a sliding gear unit that allows for the rotation of the abrasive group that performs the deburring process of the metallic workpieces and that is able to rotate in a horizontal axis by providing the opposite rotation simultaneously so as to carry out an even cleaning process without leaving any burrs at the corner and edge points of the workpiece.

State of the Art

Brushes with abrasive surfaces are generally used to cleaning the surface of the metallic workpiece in deburring machines. The structure and content of the brushes and also their replacement may vary based on the different machine designs, wherein their common aspect is that they comprise abrasive groups moving planarly in a single direction. It is expected that the abrasives operate vertically so as to intercalate the workpieces while operating on the same plane. Once the workpiece moving on the belt arrives at the abrasive portion, the surface cleaning and correcting process is initiated. While the abrasives operate on the horizontal plane, they constitute an abrasive set and clean the surface of the piece underneath. Since the abrasives moving in succession in a single direction on the horizontal axis perform the cleaning process by pressing on the same point on the metallic workpiece, it can be observed more abrasion on the points the gaps on the workpiece contacts with the abrasive vertically. Factors such as sealing constitute importance in terms of workpieces such as compressor plate comprising multiple gaps thereon, since they are employed in sensitive units. Furthermore, since the abrasives moving in succession on the same plane contact with the workpiece surface from the same point, it causes more abrasion at the initial points on the abrasive, thereby leading to a curved contraction of the abrasive. Therefore, it is required to replace the abrasive elements frequently.

For example, the independent Claim of European Patent EP2796242B1 with the title "Machine for deburring and method for configuring same” discloses a machine for deburring workpieces (36), particularly workpieces made from a flat metal plate, by means of brushing or grinding, including: a stationary machine stand (2); at least one brush unit (4, 5), which is movable vertically relative to the machine stand (2), including: an endless rotating drive belt (8); a plurality of brush carriers (9) fastened to the drive belt (8); brushes (10) for deburring the workpieces (36), particularly in the form of layers, arranged in the manner of packages, of abrasive paper or nonwoven abrasive, which are located on the brush carriers (9); The abrasive brush elements in the present invention move vertically based on the machine stand and take a reference position based on the workpiece thickness and also remain horizontally on the stable plane and thus it is aimed to perform the surface cleaning by means of a plurality of brushes. Since abrasive brushes connected with the belt connected to cross the workpiece arriving at the underneath of the brush in a single direction do not constitute an even contact on the gap corners on the workpiece, surfaces of some points are cleaned, however, it leaves deformed corners, since it is curved more than desired.

As a result, due to the aforementioned drawbacks and insufficiency of the existing solutions regarding the subject matter, the need for a study for sliding gear units has arisen.

Objects of the Invention

The invention is created by being inspired by the present situations and aims to solve the problems mentioned above.

The main object of the present invention is to provide a sliding gear unit that allows for deburring the surface of the workpieces in different sizes advancing on the conveyor without losing its essential form in deburring machines and that is able to rotate on the horizontal axis based on the machine body, on which brushes rotating in the opposite direction simultaneously are available, by being driven by the spiral conical gear group.

Another object of the present invention is to comprise a movable head group allowing the abrasives of the sliding gear unit for taking the reference position based on the workpiece thickness by moving in the vertical axis depending in the machine body, to which said sliding gear unit moving in the horizontal axis is connected.

Another object of the present invention is to comprise direction gears (spiral conical gears) for rotating the abrasive clockwise and counterclockwise.

Another object of the present invention is to comprise at least two abrasives, preferably six abrasives that are able to rotate simultaneously in the opposite direction operating, such that they contact evenly with all edges of the workpieces connected with the sliding gear unit that can rotate 360 degrees.

Another object of the present invention is to comprise a main driving motor so as to drive said abrasives in the opposite direction rotation from a single point by means of directing gears.

Another object of the present invention is to comprise a head group rotating motor providing the sliding gear unit with the annular rotation.

Another object of the present invention is to adjust the abrasive rotation speed and movements of the sliding gear units in different movement speeds by means of the use of two different driving elements.

Another object of the present invention is to ensure a longer operation life compared to those vertical single-directed brushes by ensuring that contractions occurring overtime on the end portions of the abrasives contacting with the workpiece to be treated occur at an even level by rotating in the vertical axis in clockwise and in counter-clockwise. Another object of the present invention is that the abrasives are replaceable after the completion of operation life.

The structural and distinctive characteristics and all advantages of the invention will be better understood with the figures below and the detailed description written by referring to these figures and therefore, the invention should be evaluated considering these figures and the detailed explanations.

Figures for a Better Understanding of the Invention

FIGURE 1 illustrates a mounted view of the inventive sliding gear unit for the deburring machine.

FIGURE 2 illustrates a detailed view of the front view of the inventive sliding gear unit. FIGURE 3 illustrates a detailed view of the sectional view of the inventive sliding gear unit. Description of Component References

A. Sliding Gear Unit

1. Main Chassis

2. Conveyor 3. Head Group

4. Main Driving Motor

5. Driving Shaft

6. Head Group Rotating Gear

7. Head Group Rotating Motor 8. Head Group Driving Gear

9. Abrasive

10. Abrasive Bearing Shaft

11. Reverse Pinion Gear

12. Reverse Ring Gear 13. Forward Ring Gear

14. Forward Pinion Gear

15. Gear Box Body

It is not necessary to scale the drawings and the details which are not necessary for a better understanding of the invention may be omitted. Additionally, the elements which are at least substantially identical or at least substantially have identical functions are shown with the same reference number. Detailed Description of the Invention

The present invention relates to a deburring machine (A) which meets all the requirements mentioned above, eliminates all the disadvantages, and offers some other advantages.

In this detailed description, preferred embodiments of the sliding gear unit (A) subject to the invention are described only for a better understanding of the subject.

Figure 1 illustrates a mounted view of the sliding gear unit (A). All components constituting the present invention are illustrated in a mounted manner. It comprises a main chassis (1) constituting the body elements of the deburring machine, a conveyor (2) functioning as a table during the working process, on which the workpiece advances, a head group (3) for deburring and beveling the workpiece while advancing on the conveyor (2) at a determined speed.

Figure 2 illustrates a detailed view of the front view of the inventive sliding gear unit (A). It comprises a main driving motor (4) providing a movement to the driving shaft (5) for the rotation of the abrasive (9), a driving shaft (5) receiving the rotation from a said main driving motor (4) and transmitting the same to the directing gears, a head group rotating motor (7) being a driving element providing the rotation of the head group (3), a head group driving gear (8) transmitting the rotation of the head group rotating motor (7) to the head group rotating hear (6) and a head group rotating gear (6) transmitting the rotation of said head group driving gear (8) by means of chain or belt.

Figure 3 illustrates a detailed view of the sectional view of the inventive sliding gear unit. It comprises an abrasive (9) for deburring and beveling the workpiece, an abrasive bearing shaft (10) for bearing said abrasive (9) in the head group (3) and capable of rotating in clockwise and counter-clockwise by means of the movement received from the reverse pinion gear (11), a reverse pinion gear (11) receiving the counter-clockwise rotation of the abrasive (9) from the reverse ring gear (12), a reverse ring gear (12) performing the rotation by means of receiving the movement from said driving shaft (5), a forward ring gear (13) receiving the clockwise rotation of the abrasive (9) from the driving shaft (5), a forward pinion gear (14) receiving the clockwise rotation of the abrasive (9) from the forward ring gear (13) and a gearbox body (15) functioning as a combining element that combines all gear elements. Operation Principle

The workpiece to be subjected to the surface cleaning process is initially placed on the conveyor (2) being a product conveying and feeding element of the deburring machine. The workpiece is retained on the conveyor (2) by means of magnets and advances together with the conveyor (2) and then arrives at the underneath of the head group (3) to perform the process. The head group (3) is driven by the head group rotating motor (7) being an electrical motor. The head group rotating motor (7) initially transmits the rotation to the head group driving gear (8). Said movement is transmitted to the head group rotating gear being an opposite element by means of a chain or belt connected with said head group driving gear (8). Since the body of the head group rotating gear (6) is directly connected with the head group (3), the head group (3) is rotated by means of the movement received.

The main driving motor (4) being a different movement element comprises an abrasive (9) thereon and provides driving so as to rotate annularly said abrasives (9) at its axis. The driving shaft (5) connected with the main driving motor (4) and passing through the head group rotating gear (6) transmits the movement received to the reverse pinion gear and forward pinion gear (14) in the head group (3) by means of the reverse ring gear (12) and forward ring gear (13) fastened to the body or formed in a single piece. Said movement can be carried out by the spiral conical gears as well as by other annular gear groups. While the forward ring gear (13) moving in the horizontal axis rotates a forward pinion gear (14) operating in the vertical position according to the forward ring gear (13), the reverse ring gear (12) at the utmost end of the driving shaft (5) rotates the reverse pinion gear (11), thereby providing the rotation for the abrasive bearing shafts (10). Since the abrasives (9) are fastened to the abrasive bearing shafts (10), the abrasives (9) are rotated annularly both at their axis and at the outer axis together with the head group (13) based on the horizontal plane, thereby ensuring the contact from different directions with every point of the moving workpiece. The abrasive bearing shafts (10) receiving the movement from two different driving elements rotate in clockwise and counter-clockwise based on the movement element connected therewith, thereby ensuring an efficient and smooth cleaning process on the surface of the workpiece.