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Patent Searching and Data


Matches 651 - 700 out of 17,139

Document Document Title
WO/1998/021006A1
The position of a feed shaft is monitored and the average moving speed and moving frequency of the feed shaft are obtained every position correction unit time. A correction value $g(d)n is obtained using an approximate expression from th...  
WO/1998/018596A1
An electrical lap guide (ELG) system and method are disclosed for use in lapping a bar (10) of magnetic transducer carrying sliders to a desired transducer height. A first ELG (ELG1) contained within the bar has at least two first ELG re...  
WO/1998/018065A1
Memories (41b-44b) are provided for amplifiers (41-44) connected to a CNC (10) for storing the ID data used for discriminating the kinds and characteristics of the amplifiers (41-44) and the ID data of the maintenance and management data...  
WO/1998/015879A1
The invention relates to a workpiece cutting machine by chip removal e.g. milling machines or lathes. In order to detect an imbalance of rotating element i.e. a cutter head (40) or workpiece which is to be machined (10), sensors (60) are...  
WO/1998/014306A1
An improved method and apparatus for controlling the depth of removal by a chemical mechanical polishing of a selected material on a supporting semiconductor underlayer where it is desired to terminate removal of the selected material, s...  
WO/1998/012018A1
A machining limit area designation method using a numerical controller for easily executing machining of an arbitrary shape by manual feed and a manual feed machining method are described. To designate a machining limit area in an X-Y pl...  
WO/1998/010891A1
In a method of grinding a crankshaft component, the latter is engaged by a grinding wheel and ground until about 50 microns oversize. The wheelfeed is then arrested and gauging of diameter and eccentricity takes place over several revolu...  
WO/1998/009754A1
An apparatus (50) and method for automatically compensating for the lateral runout between an on-car lathe apparatus (52) and a vehicle hub (44) axis including one or more stop discs (94, 96) that rotate with the drive shaft of the lathe...  
WO/1998/009782A1
This invention relates to a remote constant surface speed control mechanism for a lathe wherein variations in surface speed of a workpiece are controlled by electronic/electrical means readily accessible to an operator during cutting ope...  
WO/1998/001796A1
A superposition control method which uses a numerical controller and with which the waiting is not necessary, the superposition can be started and canceled even in motion and, further, quick acceleration and quick deceleration can be avo...  
WO/1997/046925A1
Large machines, especially those having working envelopes in excess of fifteen feet, exhibit unacceptable errors because of thermal expansion and mechanical misalignments between the axes. The errors have traditionally been minimized by ...  
WO/1997/043703A1
A machine tool is controlled through a process incorporating the steps of measuring geometric and thermal errors (102) with accurate instruments, creating a global differential wet model of machine tool position (104) and using this mode...  
WO1997031749A3  
WO/1997/037788A1
A process for manufacturing a component (10) on which in-service stresses are imposed by in-service loading conditions. The process generally entails fabricating the component (10) such that residual stresses are induced in the component...  
WO/1997/031750A1
The invention is directed to correcting quadrant projections in accordance with a working condition, enhancing an efficiency of working operations and improving a working precision. There is provided a quadrant projection correction stor...  
WO/1997/031749A2
The aim of the process and associated device is a substantially more accurate correction of dynamic misalignments caused unavoidably by vibrations in the machine than is possible with known processes. In the process, the disturbances whi...  
WO/1997/030826A1
A positioning method for a production system for positioning the location of a positioning head (2, 12, 27) in relation to a work object, comprising a positioning body (1, 11), e.g. a robot or a machine tool, a positioning control unit (...  
WO/1997/022041A1
A maximum value -A of a position deviation, which is generated by deflection when a working point is moved in a +X direction, and a movement command D required till a deflection A in an opposite direction is again built up when the worki...  
WO/1997/022042A1
A numerically controlled milling machine is used to mill the surface of a coined spinnerette after punching and before broaching the holes in the spinnerette. A probe is mounted on the milling machine to obtain data points on the bumpy s...  
WO/1997/020657A1
A positioned sensing device (12) measures and/or calculates the lateral position and movement of a saw blade (30). These measured and calculated values are used to automatically alter the work-feed rate and/or saw blade rim speed either ...  
WO/1997/018436A1
A ballbar socket head (302) is attached to a standard tool head (304) for a CNC machine tool or like device. The socket head can then be parked on the machine tool's tool chain (316) and selectively loaded into the machine tool's spindle...  
WO/1997/005391A1
The invention is the derivation of the exact mathematical expressions for the curvature, either cardiocle or expanded cardioid, of the casing of the springless eccentric rotor vane pump, thereby facilitating the precision manufacture of ...  
WO1996014949A3  
WO/1996/038261A1
An abnormal load detecting method capable of detecting an abnormal load correspondingly to an operation condition of a machine tool. A load imparted to a driving shaft of a machine tool is detected, and a detected load is compared with a...  
WO/1996/033870A1
An engraving system for engraving printings cells in a gravure printing cylinder (34) uses a video camera (20) for feedback control of printing cell width. A setup procedure for the engraving system involves engraving an isolated test ce...  
WO/1996/027778A1
A sensor assembly along with numerous processing equipment is provided for attachment to the work table of a precision machining system. By attaching the device to the work table and subsequently driving the work table through a repeated...  
WO/1996/027479A1
An inner and outer diameter, chamfer working apparatus for substrates provides chamfer on an outer diameter end surface and an inner diameter end surface of a substrate by means of grinding work, and comprises an inner and outer diameter...  
WO/1996/014949A2
Several methods and subsystems are disclosed for aligning a workpiece (16) as it is being loaded into a die space of a bending apparatus (29), and for performing sensor-based control of a robot as it moves a workpiece from one location t...  
WO/1996/013355A1
A method of measuring a reference position of a tool (13, 135) which is fastened to a first holder (11, 133) of a machine tool (1, 131) relative to a workpiece (35, 145) which is to be manufactured by means of said tool (13, 135) and whi...  
WO1996008752A3  
WO/1996/008752A2
A method and system for interactive operation of computer-controllable machines, e.g., machine tools. The method involves processing real-time operator input commands, machine operating state data, and machine operating objective data to...  
WO/1996/004109A1
An abnormal tool restoring apparatus is formed by providing the same with a teaching point storage means for storing teaching points taught in advance and defining working lines for a tool with respect to a work so that the tool passes t...  
WO1995007793A3  
WO/1995/031342A1
An automated apparatus and method for engraving a workpiece selected from a plurality of workpiece styles, and dispensing the engraved workpiece along with a related accessory. Upon receipt of workpiece selection and text information sup...  
WO/1995/028252A1
Backlash is corrected in accordance with kinds of modes and feed speeds. A numerically controlled machine tool has a feature of providing a plurality of backlash correcting registers for one positioning shaft.  
WO/1995/023496A1
A device for regulating the distance from the ground of a working unit of an agricultural machine is proposed which comprises a position sensor (11) and a pressure sensor (10) for detecting the position of the working unit (2) relative t...  
WO/1995/023107A1
The present invention provides for a press feed apparatus (10) for use in feeding stock material (7) to a high speed automatic press. The feed roller (14) is driven by a servo motor (13) integral with the shaft (18) of the roller, the fe...  
WO/1995/011105A1
In a machining condition setting device for electrical discharge machining for setting machining conditions including pulse energy and an electrode feeding distance based on data set in relation to specifications including the quality of...  
WO/1995/009714A1
The surface of a workpiece is polished by passing a computer numerically controlled rotating flexible abrasive flap wheel across the surface of the workpiece, continuously measuring the diameter of the flap wheel which decreases due to w...  
WO/1995/008443A1
An error detection apparatus and method for use with engravers, such as gravure engravers. An error value E corresponding to the difference between a set of predetermined setup parameters and actual measurement of a portion of an engrave...  
WO/1995/007793A2
A manipulator (26) for controlling force and position of a retained device (22) is disclosed. Various construction details are disclosed that provide a manipulator (26) which is back driveable and which provides planar control of both fo...  
WO/1995/005907A1
In this invention, a design pattern (5) formed on a disc surface (4) of a work (3) is picked up as an image data by a camera (18) and compared with a predetermined design pattern data by an image processing system to calculate a deviatio...  
WO/1995/005703A1
A method for controlling a servomotor when reversing the direction of a feed shaft of a machine tool using said servomotor including the steps of estimating a friction torque by providing disturbance torque estimating means for estimatin...  
WO/1995/002485A1
A drilling system for properly controlling the load of a drill. A cutting reaction force estimating means (1) estimates a disturbance torque Yz acting on a servomotor (63) based on a speed signal x1z of the servomotor (feeding shaft) (63...  
WO/1995/001237A1
In controlling a bar feeder (105) in a lathe (101), a work (104) is grasped by a Z shaft (102) of the lathe (101) and the bar feeder (105). The Z shaft (102) of the lathe (101) performs position control and the bar feeder (105) performs ...  
WO/1995/000890A1
The operation path of a robot is determined by the position data which represent teaching points, and the amounts of shift from the teaching points. The data in a teaching program for determining the operation path of the robot are group...  
WO/1994/029777A1
On a designated display screen, shape data (I, J, R) for specifying a shape is input to designate the shape, and at least one side (limit area 0) of a region which is defined by a profile of the shape is specified to designate the region...  
WO/1994/029776A1
In a process of moving the tip of a deburring tool from a point P1 to a point P2 on a work, if the deburring tool encounters a large burr, the cutting resistance increases abruptly near a point P'1. When the resistance exceeds a predeter...  
WO/1994/029775A1
An off-line teaching method which prepares off-line original teaching data associated with a working line of an object of robot operation, and executes arc insertion processing for the original teaching data associated with a bent portio...  
WO/1994/028472A1
It will be assumed that when the distal end of a tool exists at a point P at present, it should reach a point Q in the next cycle provided that the tool moves without changing its attitude. When the attitude of the tool changes during it...  

Matches 651 - 700 out of 17,139