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| Number | Title | Issue Date |
| 6449526 | Machine tool with automatic process control and monitoring In a grinding machine a measurement arrangement is provided for the monitoring of the processing of a work piece, especially to make tools. The measuring arrangement uses, preferably, combined transmitted-light and incident-light based techniques so that ... | 09/10/2002 |
| 6445971 | Machine for tooling small parts This machine tool such as CNC edge grinding apparatus is an apparatus for machining small glass parts such as a side view mirror. For small parts, grind time can exceed by a considerable amount the load/unload time. This machine greatly increases the outp... | 09/03/2002 |
| 6425801 | Polishing process monitoring method and apparatus, its endpoint detection method, and polishing machine using same A polishing process monitoring apparatus of a semiconductor wafer is provided, which is capable of monitoring correctly the process independent of various factors affecting optical measurement, such as the configuration, material, and size of a layered st... | 07/30/2002 |
| 6427090 | Requalification controller for durables A system is provided for controlling the time at which a durable item, such as a reticle used in a lithography process in semiconductor manufacturing, is requalified for use. A counting device counts occurrences of predefined events, such as the number of... | 07/30/2002 |
| 6411861 | Method and apparatus for grinding composite workpieces A method is described for grinding a composite workpiece to form a component having concentric and eccentric cylindrical regions. The method comprises mounting the workpiece in a computer controlled grinding machine having a grinding wheel the advance and... | 06/25/2002 |
| 6336057 | Lens grinding apparatus In an eyeglass lens grinding apparatus for grinding a periphery of a lens, a lens holding system holds a lens while clamping the lens. A data input system inputs shape data of an eyeglass frame to which the lens is fitted, and layout data of the lens with... | 01/01/2002 |
| 6317653 | Control system for adjusting a reaction force acting on a working end of a robot A correct track calculating section calculates a correction amount in accordance with a reaction force acting on the working end of a robot. The correction amount is added to a given provisional target position so as to reduce the reaction force. When the... | 11/13/2001 |
| 6298277 | System for making an optical glass from a blank The system including a device (2) for applying an adapter (11) to a blank (1) for transferring it into and mounting it in a trimming device (3) controlled in accordance with trimming information. The system includes a device for acquiring the characterist... | 10/02/2001 |
| 6233497 | Contact detecting method and an apparatus for the same Under the conditions that the tool is movable in an X-axial direction for approaching a work W and in a Y-axial direction perpendicular to the X-axial direction, the tool is moved at a specified speed in the X-axial direction to make the tool approach a w... | 05/15/2001 |
| 6205371 | Method and apparatus for detecting machining flaws, especially caused by grinding machines A method and an apparatus for detecting machining flaws of machine tools mechanically removing material from surfaces, especially of grinding machines, with the help of which the occurrence of machining flaws can be determined directly during the machinin... | 03/20/2001 |
| 6188936 | Gravimetric blender with operatively coupled bar code reader A method for weight blending of granular materials comprises at a remote site generating a command for desired operation of granular material weight blending apparatus; encoding said command into transportable time-stable machine readable tangible storage... | 02/13/2001 |
| 6167325 | CNC data correction method Actual machining positions P1, P2, . . . corresponding to command positions S1, S2, S3 . . . of each block of NC data are obtained by trial machining. Positions that correspond symmetrically to the actual machining positions P1, P2, . . . with respect to ... | 12/26/2000 |
| 6148248 | Apparatus and method for lobing and thermal-damage control in shoe centerless grinding A control system by which, the lobing and thermal-damage on a component surface will be eliminated and a component of a circular cross-section is capable of being ground with ultra-precision and high quality surface finish. The system includes (i) an auto... | 11/14/2000 |
| 6142398 | Apparatus for producing fragrance-containing long lasting solid particle A method and apparatus is disclosed for producing a fragrance-containing solid particle, capable of controllably releasing the fragrance to the environment in which the particle is contained, for incorporation into laundry detergents, fabric softener comp... | 11/07/2000 |
| 6112132 | Automated tube cutting apparatus and method A data-driven electrochemical grinding apparatus and method produces series of finished-cut, burr-free tube sections of precisely defined lengths. The data-driven process automatically inputs desired tube lengths, tracks the cut tube sections during the p... | 08/29/2000 |
| 6038489 | Machine tools In a machine tool, a component such as a grinding wheel acts on a workpiece to form the latter into a circularly asymmetric shape, for example, a crankpin. Movement of the grinding wheel is controlled by a control signal which is derived from theoretical ... | 03/14/2000 |
| 5959865 | Method and apparatus for controlling an electroerosive machine A method and apparatus control an EDM machine with at least one input device and one computer. During and/or after input into a controller, the required control data are subdivided into object-oriented data that directly concern individual operations, and... | 09/28/1999 |
| 5904608 | Polishing apparatus having interlock function A polishing apparatus is used for polishing a workpiece such as a semiconductor wafer to a flat mirror finish. The polishing apparatus has an interlock function includes a turntable having a polishing surface thereon, a top ring for holding a workpiece to... | 05/18/1999 |
| 5844805 | Automatic programming apparatus for numerically controlled roll grinder An automatic programming apparatus is provided to generate a NC program for processing a roll having a cylindrical part and axle parts. The apparatus includes a roll-profile setting module, a process-condition setting module, a process-order setting modul... | 12/01/1998 |
| 5796229 | Method and apparatus for robotic force controlled material removal with programmable overload release function An overload release apparatus for a robot supports a cutting tool such as an abrasive grinding wheel. A force sensor detects an amount of force applied to the cutting tool by a workpiece while a force release mechanism reduces the force applied to the cut... | 08/18/1998 |
| 5748482 | Apparatus for producing an object having an aspherical surface and method of operation thereof An apparatus, for producing an object having an asymmetric and aspherical surface, includes a rotary table on which a workpiece is attached at a peripheral part, the rotating table rotating on a rotation shaft, a rectilinear motion table for moving the ro... | 05/05/1998 |
| 5742138 | Control method for servo system with adjustable softness in rectangular coordinate system A control method for a servo system capable of adjusting softness to provide a robot with a soft floating function for each axis of a rectangular coordinate system. A force (Fx, Fy, Fz) acting on a tool center point in the rectangular coordinate system Σ... | 04/21/1998 |
| 5711697 | Robot control system When the amount of a change in load current supplied to a grinder is not more than a predetermined threshold value, the amount of piercing into a workpiece by the grinder is controlled according to the load current. When the amount of a change in load cur... | 01/27/1998 |
| 5677855 | Method of generating grinding paths from a computer model for controlling a numerically controlled grinder A method of manufacturing a distal femoral knee prosthesis includes the initial step of forming a rough prosthesis workpiece member that has the approximate size and shape of a final polished distal femoral prosthesis. The rough prosthesis workpiece membe... | 10/14/1997 |
| 5668453 | Method of calculating points and normal lines of contact and apparatus therefor The presentation of a contact point and contact normal line calculation method for processing/assembly apparatuses, having the ability to reduce contact point calculation errors due to errors in the force measurement device in both the direction of moveme... | 09/16/1997 |
| 5646493 | Robot profile control method A method of obtaining a force of each axis of a robot from the product of positional deviation and positional gain. A vector having components of the forces as many as the number of axes is defined and transformed into a vector on the base coordinate syst... | 07/08/1997 |
| 5605760 | Polishing pads A pad is provided for use on a machine for the polishing of silicon wafers which allows the use of optical detection of the wafer surface condition as the wafer is being polished. This accomplished by constructing the entire pad or a portion thereof out o... | 02/25/1997 |
| 5595525 | Numerically controlled grinding machine A numerically controlled grinding machine of the present invention grinds a cylindrical surface of a workpiece by a relative movement between the workpiece and a grinding wheel. The grinding conditions such as a grinding method and a finishing diameter of... | 01/21/1997 |
| 5587925 | File testing techniques A method of testing the characteristics of a file by providing a curve of the amount of material removed from a test bar as a function of the effective stroke area over which the file has been moved, the slope at a specified value of material that has bee... | 12/24/1996 |
| 5565749 | Method of controlling a grinder robot This invention is directed to a method of controlling a grinder robot wherein a grinder is mounted at a tip of a robot finger, and a grinding operation is performed in respect of a prescribed grinding region of a work while controlling the pressing force ... | 10/15/1996 |
| 5465474 | Cylindrically machining apparatus 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 after machined and a target radius thereof is detected ... | 11/14/1995 |
| 5333112 | Automatic flow grind system and method A system for the measurement of servo-valve "spool and sleeve sets" using automatic flow and pressure gain, plus displacement measurements. The system precisely grinds spool land edges so as to exactly match these edges with the sleeve slots or holes in o... | 07/26/1994 |
| 5315789 | Numerically controlled machine tool and method of controlling grinding operation thereof A numerically controlled machine tool such as a roll grinder grinds a workpiece into a roll shape by rotating the workpiece about its own axis at a prescribed speed, and moving a grinding tool in radial and axial directions of the workpiece. The machine t... | 05/31/1994 |
| 5271187 | Numerically controlled grinding machine An apparatus capable of automatically determining grinding wheel dressing timing for dressing a grinding wheel. The apparatus estimates the abrasion of the grinding wheel in a grinding cycle on the basis of machining data and grinding conditions, and divi... | 12/21/1993 |
| 5261768 | Automated edge finishing using an active XY table The disclosure is directed to an apparatus and method for automated edge finishing using hybrid position/force control of an XY table. The disclosure is particularly directed to learning the trajectory of the edge of a workpiece by "guarded moves". Machin... | 11/16/1993 |
| 5231587 | Computer controlled lens surfacer There is provided a lens generating apparatus and method for generating a surface on a lens blank, or other workpiece, of a wide range of shapes utilizing rotary movement of the components without a linear way system. The lens generating apparatus include... | 07/27/1993 |
| 5224050 | Method for detecting the coordinate position of the grinding point of a grinding wheel and related device A method for detecting the coordinate position of the grinding point of a grinding wheel supported on a swiveling table comprises the steps of: rotating drivably the swiveling table through a specified angle from a start position so as to arrive at a firs... | 06/29/1993 |
| 5210695 | Single block mounting system for surfacing and edging of a lens blank and method therefor A method and related system and article provides a lens blank and block assembly capable of being mounted in any of a surface generating machine, a finishing apparatus and an edging machine without requiring re-blocking of the lens in order to compensate ... | 05/11/1993 |
| 5184426 | Grinding wheel form defining device A grinding wheel form defining device defines a cross-sectional form of a grinding wheel for grinding works, the cross-sectional form including a grindstone axis. Data storage is provided for storing cross-sectional forms of workpieces which are final for... | 02/09/1993 |
| 5173863 | Programmable surface grinder having a teach mode with independent table speed adjustment A surface grinder includes a bed or base, a table supported on the bed for reciprocating movement and a grinding wheel supported on a vertical column. An actuator connected to the table reciprocates the table relative to the grinding wheel. A programmable... | 12/22/1992 |
