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Patent Searching and Data


Matches 701 - 750 out of 17,072

Document Document Title
WO/1994/004310A1
A clamp method is provided to promote automation and energy saving in an NC machine tool and accomplish high precision automatic machining. According to this method, a workpiece liable to deformation is firmly clamped without causing cla...  
WO/1994/000273A1
A method and a device for holding a tool assembly in a constant position relative to a non-planar surface. For this purpose, the assembly comprises a plate (2) and a number of acoustic sensors (11, 12, 13, 14, 15) mounted thereon. The at...  
WO/1994/000805A1
When a curved surface is modified by a CAD system, the cutter paths are automatically recreated by a CAM system. The functions for recreating the cutter paths are prepared utilizing the customizing function of the CAD system. In calculat...  
WO/1994/000272A1
A machining apparatus for improving the roundness of a work. The outer circumference of a work is divided into predetermined intervals, and a difference between the radius of that portion of the work which has finished being machined and...  
WO/1993/022736A1
Real time in-process data is collected to determine the contour and position of the interface between dissimilar layers of material. A control system (4) is automatically programmed, based on the determined contour and position of the in...  
WO/1993/018887A1
An NC data preparing system is formed so that the sequence of machining definition data can be changed in accordance with a user's demand. A user carries out predetermined operations on the desired sequence of outputting machining comman...  
WO/1993/015876A1
A main spindle positioning method which makes the most of deceleration of a spindle motor and speeds up a spindle positioning operation. It is assumed that the spindle motor is running under speed control. In response to a command for a ...  
WO/1993/009912A1
A method of trial cutting, wherein stopping and restarting of trial cutting work, repeated operations of trial cutting work on a desirable portion and correcting work for a processing program can be easily performed. By providing speed i...  
WO/1993/009507A1
A video image of the article (10) to be produced is displayed on a computer. A first geometric shape (12) is developed to enclose fully the video image of the article (10). The first geometric shape (12) provides a video image of a workp...  
WO/1993/004817A1
A numerical control device capable of working with high accuracy by accurately instructing a tool feeding speed even when there are abrupt fluctuation in the actual speed of a spindle. When the number of revolutions of the spindle (4) is...  
WO/1992/021482A1
A method of preparing a program for rough working, wherein a block of NC data outputted by a working program for performing the rough working of a regional cutting is reduced so as to shorten time for the rough working. At a cut ending p...  
WO/1992/020482A1
An active vibration control device for controlling vibration in a cantilevered member (12) and a method for the same are disclosed. The device is comprised of a cantilevered member (12) having a longitudinal axis (13) comprising a sensor...  
WO1992017313A3  
WO/1992/017313A2
A computer aided design and manufacturing system comprises a platform (7) suspended by means of three pairs of supportive legs (8) which are coupled thereto at triangularly spaced-apart locations by means of three universal joints (9) ea...  
WO/1992/014579A1
The checking of the condition of a cutting instrument is effected both on the basis of current amplitude values of vibroacoustic and force signals and on the basis of their increments per time unit. For that purpose in a device for diagn...  
WO/1992/013674A1
This is a method of producing multi-spindle machining motion data, which can avoid bite-in into a work and preparation of useless data in preparing NC data for multi-spindle machining on a corner portion by use of an automatic programmin...  
WO/1992/012469A1
A method of interactive preparation of NC data for specifying the depth of cut and a total amount of removal, in which an appropriate depth of finish cut can be set. A lower limit (s) is set (S2) for the depth of cut (a), and a required ...  
WO/1992/008574A1
A numerically controlled device wherein, during working simulation, both a work and a tool are constantly displayed on a display screen at a proper variable display magnification, so that both of a change in shape of the work and movemen...  
WO/1992/007684A1
A method of working a polygon enabling a polyhedron to be formed on a work in such a way that a specific part of the polyhedron exactly agrees with a specified peripheral direction position on the work, wherein, in such a state that a to...  
WO/1992/007690A1
A method of cutting in working a cam shaft which is capable of reducing fluctuations in cutting load acting on a workpiece so as to improve precision in working without lowering operation efficiency. The method comprises such steps that:...  
WO/1992/004664A1
A method of simulation of turning center working requiring the movement of a tool with respect to a Y-axis perpendicularly intersecting both a Z-axis in parallel to a rotary shaft of a work and an X-axis perpendicularly intersecting the ...  
WO/1992/002361A1
A cutting and forming machine has an adjusting device (11) for feeding the cutting and forming tool (13), said adjusting device being located in a mobile machine part, e.g., the upper part of the tool, and a measuring device 92) for meas...  
WO/1992/002869A1
A method of calculating the axial direction of a tool, wherein the direction of the tool axis is determined during side cutting on a numerically controlled five-axis machine. A normal vector (Ri) is obtained at a split point (Pi) on the ...  
WO/1992/001533A1
A system for controlling postures of structures and workpieces, which is used for correcting and controlling the positions of various industrial machines. An object of the present invention is to correct very small displacements of the s...  
WO/1992/000830A1
According to this invention, common tool codes for specifying tools are used in a whole system, a T code command including tool codes, tool shape information and tool machining ability information are inputted into each NC machine, and t...  
WO/1991/019238A1
A method for automatically editing a machining process so that a machine tool can be operated efficiently. A processor of an automatic programming apparatus transfers a leading definition statement related to upper surface machining from...  
WO/1991/018333A1
A lithographic system (10), having a stepper (16) on a block of granite (12) attached to the ground using isolation legs (32), includes a servo control system (34, 38, 40) for providing signals to a motor (18) associated with the stepper...  
WO/1991/017021A1
In a machine for working shoes including a plurality of arranging members for at least one object to be worked, the apparatus includes a camera for detecting the shape and position of the object, a computer connected to the camera and ad...  
WO/1991/016181A1
A process and device are disclosed for setting up a three-cutter machine by adjusting the supply station, the transfer station, the cutting station and the ejector according to a book format to be cut or in order to carry out maintenance...  
WO/1991/013721A1
A method of setting a boring condition by which the working condition for defining of boring in an automatic programming can be set easily. In this method, when one of various registered bore form definitions displayed is selected by an ...  
WO/1991/008879A1
Procedure and apparatus for determining the ending instant of the block rounding stage in a veneer-cutting machine, in which procedure the sound produced by the cutting during the rounding stage is monitored by means of a sensor (12). Th...  
WO/1991/008851A1
A work exchange system of a CNC lathe having two spindle heads. A work is machined by the spindle head A (S1, S2), and moved to the spindle A (S3, S4) while a servo motor that controls the feed shaft of the spindle head B is maintained u...  
WO/1991/009358A1
A servo motor control method which enables optimum backlash acceleration correction to be made automatically under various operating conditions of a machine. The backlash acceleration correction is initiated at the time of reversing of t...  
WO/1991/007707A1
This invention relates to a method of preparing an interactive numeric controller program for a 2-spindle 2-turret 4-axis lathe on the basis of the shapes of a product and work which undergoes primary and secondary machining. The point b...  
WO/1991/007710A1
A feedback position control method of performing appropriately and easily a position control in a variety of machinery. A pulse count converter (5) calculates the sum of the product of the number (xn) of feedback pulses delivered from a ...  
WO/1991/007008A1
A main shaft motor control method capable of carrying out contour machining with a high accuracy. A vector control processor performs speed loop processing to obtain a torque command (Tc). It is also adapted to carry out (S4, S7) a vecto...  
WO/1991/004812A1
A method of controlling rotations of main shafts, capable of preventing a work from being distorted during transfer of the work between the two main shafts of a machine. When speed loop controls are conducted by speed control sections (1...  
WO/1991/003349A1
The invention concerns a drive for a machine tool with relative rotational motion between tool (12) and workpiece (13) and relative feed motion in the direction of the axis of rotation, in particular a thread-cutting and/or drilling mach...  
WO/1991/001847A1
The invention relates to an optical alignment means for the location of punched or drilled holes in a flexible polymer sheet as is used extensively in the printing industry. The invention has for its object improving the accuracy of loca...  
WO1990015376A3  
WO/1990/015684A1
The invention relates to a sensor-controlled deburring system for metal workpieces, especially cast components (casting cleansing), and a section sensor for its implementation and is intended to improve deburring quality rationally and e...  
WO/1990/015723A1
The engraving of an article (7) with a bent/curved surface is carried out at an order site (1). Engraving instructions are fed into computer equipment which controls an engraving machine by means of control signals which depend on the in...  
WO/1990/016019A1
A control rule is changed in accordance with the magnitude of a system deviation which is one of the state quantities of a controlled system, and a control command which is the most suitable for following a set value is outputted.  
WO/1990/015371A1
An absolute positioning method which can set easily and automatically an absolute position of a driven member at the time of power-on of a full closed-loop servo system. When the power source of a numerical controller (10) is turned on, ...  
WO/1990/015376A2
The present invention provides a method and apparatus for manipulating computer-based representations of objects of complex and unique geometry. A computer acquires data describing an object and its surroundings, constructs a computer-ba...  
WO/1990/014924A1
A digitizing controller which acquires sequentially position data while profiling the shape of a model and outputs them as NC data. A tracer head (3) is provided with two non-contact distance finders (30a, 30b) for measuring independentl...  
WO/1990/014192A1
This invention relates to a control device that can drive a compound lathe capable of tapping on the edge surface of a rotating work. This control device (100) is provided with first and second control circuits (110, 120) that control th...  
WO/1990/013747A1
A hydraulic drive (10) for the adjustment, feed and return movements of a tool head of a machine tool comprises a hydraulic motor (11) and an after-running adjustment valve (12). The reference value of the position is set and the actual ...  
WO/1990/013383A1
The present invention relates to a system for monitoring tension of a peeled strip (30) during threading of the strip (30) onto a coil wrapping assembly (58). Sensors (74) mounted on the coiler assembly (58) monitor strip tension during ...  
WO/1990/013073A1
The purpose of this invention is to make it possible to automatically correct a precision boring tool. To this end, the device comprises a bore measuring instrument (26), a detector (11) for measuring the position of the cutting blades o...  

Matches 701 - 750 out of 17,072