Patents for B23Q 15 - Automatic control or regulation of feed movement, cutting velocity or position of tool or work (7,027)
11/1991
11/21/1991EP0151187B1 Method of specifying three-dimensional curve
11/21/1991DE4016088A1 Drilling holes in multilayer circuit boards - using drill with several drill bits connected to each other but independently controllable for adaption to position of layers
11/14/1991WO1991017021A1 Apparatus for the automatic control of a machine, particularly of a shoe making machine
11/13/1991CN1056162A In situ monitoring technique and apparatus for chemical/mechanical planarization endpoint detection
11/07/1991DE4113797A1 Method of setting up triple cutter
11/06/1991EP0455455A2 In situ monitoring technique and apparatus for chemical/mechanical planarization endpoint detection
11/06/1991EP0454853A1 Feedback position control method
11/05/1991US5062745 Mechanical peck drill and method
11/05/1991US5062743 Drilling device
10/1991
10/31/1991WO1991016181A1 Process and device for setting up a three-cutter machine
10/30/1991EP0453570A1 Nc program preparation method of interactive numeric controller or automatic programming apparatus
10/29/1991US5060544 Method of an apparatus for retracting tool in numberical control machine tool
10/29/1991CA1291547C Computer controlled honing machine or the like
10/22/1991US5060164 Numerical controller for machining a non-circular workpiece and capable of calculating profile data
10/22/1991US5060163 Programming apparatus for lathes
10/16/1991EP0451287A1 Main shaft motor control method
10/15/1991US5058029 Setting control method of machining coordinate system in a machine tool
10/09/1991EP0450647A2 Numerically controlled machine tool management system
10/09/1991EP0450579A2 Monocrystal ingot attitude-adjusting/surface-grinding/conveying apparatus
10/08/1991US5054340 Apparatus for machining a non-circular workpiece
10/01/1991US5053973 Method and apparatus for correcting deflection of a movable member
09/1991
09/25/1991EP0447561A1 Method of controlling rotations of main shafts
09/25/1991EP0171435B1 Numerical control method
09/19/1991WO1991013721A1 Method of setting boring condition
09/18/1991EP0148279B1 Method of producing curved surface
09/10/1991US5047702 Synchronous control method and apparatus therefor
09/03/1991US5044844 Machining apparatus
09/03/1991US5044125 Method and apparatus for controlling grinding processes
08/1991
08/27/1991US5043907 Band saw apparatus and method with first cut input to controller
08/27/1991US5042335 Method and apparatus for manufacturing a body with a surface of revolution at its end with the axis thereof aligned with an axis of the body
08/27/1991US5042206 Method and apparatus for controlling grinding processes
08/22/1991DE4101750A1 Precision alignment procedure for VLSI process - using sensor to detect image of illuminated adjustment mark carried by adjusted object
08/21/1991EP0442540A2 CNC turning machine
08/21/1991EP0175792B1 Area machining method
08/21/1991EP0166000B1 Area machining method
08/14/1991EP0441627A1 A method of numerically controlled profile grinding
08/14/1991EP0440904A1 Method and apparatus for displaying scaled representations on a CRT or other display apparatus
08/08/1991DE4003347A1 Control for rock separation machine with driven separating tool - using successive partial separation steps and elimination of load-free movements
07/1991
07/31/1991EP0172258B1 Machining apparatus for effecting profile machining and nc machining
07/30/1991US5035554 Method for determining the radius described by a tool
07/23/1991US5033343 Variable lowering stop for cutter knife
07/23/1991US5033238 Dental technician's work station
07/23/1991US5033237 Method of numerically controlled profile grinding
07/17/1991EP0436887A1 A numerical control unit
07/17/1991CN2080886U Numerically-controlled vertical feed mechanism for multifunctional toolroom machine
07/16/1991US5032778 Apparatus for controlling operating stroke of reciprocating member, using encoder signal
07/09/1991US5031106 Machine tool
07/09/1991US5031105 Method and system for working blade material for mold
07/04/1991DE4000025A1 Device for machining workpieces to slightly elliptical section - is subject to hydraulic pressure control from computer operating on tool carrier position and angle measurements
07/04/1991DE3943343A1 Circular saw for cutting stone blocks - is brought to rest when driving torque falls below specified minimum value
07/02/1991US5029329 NC machine tool control method and apparatus
06/1991
06/27/1991WO1991009358A1 Servo motor control method
06/27/1991WO1991008879A1 Procedure and apparatus for determining the ending instant of the block rounding stage in a veneer-cutting machine
06/27/1991WO1991008851A1 Work exchange system
06/27/1991DE3942811A1 Handwheel with variable torque for moving from rest - using EM device coupled to feedback from controlled process e.g. machine tool working
06/26/1991CN1052443A Manually controllable lathe
06/25/1991US5027280 Machining apparatus having a main spindle supported by magnetic bearings
06/25/1991US5025594 Method and apparatus for controlling grinding processes
06/25/1991US5025593 Slicing machine and control method thereof
06/20/1991DE4006668C1 Sawing operation control system for stone processing machine - has measuring unit for input variable of rotary drive motor connected to computer
06/12/1991EP0431572A2 Numerical control device for a machine tool
06/12/1991EP0431183A1 Absolute positioning method
06/12/1991EP0430984A1 Fineboring machine and process for producing bores with any polar and/or axial generating line.
06/11/1991US5023422 Method of and apparatus for forming a slot in a workpiece
06/11/1991US5022798 Thrust-responsive two-speed drill and method of operation
06/05/1991EP0429680A1 Fuzzy control method and robot height profile control method using the same
06/05/1991EP0429655A1 Control device for tapping
06/04/1991US5021941 Position control method and apparatus for a closed loop type numerically controlled machine
05/1991
05/30/1991WO1991007710A1 Feedback position control method
05/30/1991WO1991007707A1 Nc program preparation method of interactive numeric controller or automatic programming apparatus
05/29/1991EP0428945A2 Control device for programme controlled machine-tool
05/29/1991EP0428739A1 Digitizing controller
05/29/1991EP0290515B1 Rotary cutting tool
05/28/1991US5020001 Robot controller
05/28/1991US5019763 Learning control method in numerical control machine tool
05/28/1991US5018913 Device for controlling the tool position depending on the stroke position
05/16/1991WO1991007008A1 Main shaft motor control method
05/14/1991US5014794 Power driven tool and drive system therefor
05/08/1991EP0425676A1 Digitizing method
05/08/1991EP0425674A1 Automatic tool selecting system
05/07/1991US5013984 Indicator for a reciprocating member
05/07/1991US5012526 Automatic tool compensator
04/1991
04/30/1991US5011345 Contour machining method and apparatus for printed circuit board
04/18/1991WO1991004812A1 Method of controlling rotations of main shafts
04/17/1991EP0422006A1 Device and process for adjusting or correcting a precision boring tool
04/10/1991EP0256140B1 Method for lining pipelines
04/09/1991US5005452 High production machining device
04/09/1991US5005298 Displacement controller for fine positioning device
04/03/1991EP0420244A1 Apparatus for machining a non-circular workpiece
04/03/1991CN1012291B Numerical control system of randomly changing input setting value for shearing machine-tools
04/02/1991US5004930 Method and device for setting the angular position of a workpiece on a machine-tool by means of a laser beam
04/02/1991CA1282495C Curve following apparatus
03/1991
03/26/1991US5003484 Duplicating arrangement
03/21/1991WO1991003349A1 Machine-tool drive
03/21/1991DE3930306A1 Antriebsvorrichtung fuer eine werkzeugmaschine Drive device for a machine tool
03/20/1991EP0418213A2 Manually controlled lathe
03/20/1991CN1049995A Automatic cut-to-length sizes machine with functions of non-contact detection
03/12/1991US4999784 Axis changeover apparatus
03/12/1991US4999555 Digitizing method
03/12/1991CA2025004A1 Manually controllable lathe
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