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| Number | Title | Issue Date |
| 8000834 | Engagement milling A method using a computer for generating a spiral-like tool path for milling a region of a workpiece is disclosed. The method includes the steps of: creating a family of concentric indexed circular arcs at each of two or more separate and distinct selected points wi... | 08/16/2011 |
| 7894930 | Method and device for composite machining based on tool-path pattern types with tool axis orientation rules Computer-enabled methods and devices allow for the ready set-up for machine instruction generation by addressing various combinations of machining patterns and tool axis orientations via the selection or designation of a machining pattern and the selection or design... | 02/22/2011 |
| 7831332 | Engagement milling A method for generating a tool path for machining a pocket with a milling cutter is disclosed. The tool path includes a first portion, a second portion and a transition portion connecting together the first portion and the second portion. The method includes the ste... | 11/09/2010 |
| 7809463 | Numerically controlled machining apparatus A machining apparatus, in which a plurality of user set programs in relation to one axis is written and the amount of the infeed motion of the grinding wheel is increased to restrain the change of the load of the grinding wheel, improves a machining accuracy and ach... | 10/05/2010 |
| 7386366 | Feedback estimation of joint forces and joint movements Apparatus and methods are provided for estimating joint forces and moments in human beings. A forward dynamics module determines simulated kinematic data. An error correction controller forces tracking error between the simulated kinematic data and measured (or desi... | 06/10/2008 |
| 7318767 | Device and method for machine control A data set (D) is provided for machine control of a grinding machine to determine time-efficient, collision-free travel paths. The data set has a collision parameter of “0” or “1” in each separate coordination point (X, Y, Z, A) as well as for each combinati... | 01/15/2008 |
| 7306412 | Rotary milling cutter and milling method using the same technical field An end mill 10 is a tool for milling a metal block such as a metal mold and is placed in a machine tool such as a milling machine when in use. The end mill 10 is used to provide a rotary milling cutter and a milling method using the same, in which it i... | 12/11/2007 |
| 7287939 | Method for controlling relative displacements of a tool against a workpiece Relative movements of a tool and a workpiece are controlled by moving a tool axis in all spatial dimensions for the material-removal machining of the workpiece to produce a desired target contour of the workpiece by a sequence of relative movements along a tool traj... | 10/30/2007 |
| 7260450 | Apparatus and method for controlling elastic actuator An internal pressure of a hydropneumatic drive actuator is measured by a pressure measurement device, a displacement amount of a movable mechanism is measured, a desired value and a measurement value of the displacement are inputted so that a position error is compe... | 08/21/2007 |
| 7237989 | Milling method used for producing structural components A milling method is for producing milled structural components of materials that are difficult to machine by chip-cutting. A milling tool with a tool radius is rotationally driven about an axis of the milling tool to ensure a central rotation thereof, whereby a refe... | 07/03/2007 |
| 7184858 | Apparatus and method for controlling elastic actuator An internal pressure of a hydropneumatic drive actuator is measured by a pressure measurement device, a displacement amount of a movable mechanism is measured, a desired value and a measurement value of the displacement are inputted so that a position error is compe... | 02/27/2007 |
| 7058473 | Method and device for generation of machining program A method for generating a machining program includes inputting a coordinate value and a machining dimension of a portion to be machined with respect to the axis Z for forming a pair of restricting surfaces. The method includes determining the unit machining shape ba... | 06/06/2006 |
| 6968256 | Method for processing manufactured parts A method for processing one or more manufactured parts is provided. The method includes generating a number of tool paths corresponding to a feature to be added to the one or more manufactured parts. Each of the tool paths has an effect on a respective one of the re... | 11/22/2005 |
| 6952627 | Method and apparatus for fabricating light management substrates A method of machining a surface of a workpiece is accomplished by bringing a cutting tool into contact with the surface of the workpiece and for at least one cutting pass, i, causing relative movement between the cutting tool and the surface of the workpiece along a... | 10/04/2005 |
| 6937942 | Method and apparatus of detecting tool abnormality in a machine tool A method and apparatus is provided of detecting tool abnormality in a machine tool. Permissible minimum and maximum values of load current in a real cutting section are determined for a spindle motor and a servomotor during normal operation of the machine tool. The ... | 08/30/2005 |
| 6934606 | Automatic calibration of a wafer-handling robot In one embodiment, a wafer-handling robot in a wafer processing system is automatically calibrated by determining an orientation of the robot relative to a chassis of the wafer processing system, determining hand-off coordinates of a load port in the wafer processin... | 08/23/2005 |
| 6885984 | Apparatus and method for aiding programming An apparatus for aiding a machinist in preparing a machining program. A machining simulator simulates a basic machining program. Values of machining variables are obtained during the simulation and stored in a simulation result data memory. A spindle load determiner... | 04/26/2005 |
| 6721625 | Barcode dual laser scanner targeting A robot apparatus with a first barcode scanner to be used for collecting positional data perpendicular to its scan direction and a second barcode scanner to be used for collecting positional data perpendicular to its scan direction where the first and second barcode... | 04/13/2004 |
| 6718227 | System and method for determining a position error in a wafer handling device A system for determining a position error in a wafer handling device includes a control module, an image acquisition module, and an image analysis module. The control module moves a workpiece having one or more reference marks, and the image acquisition module captu... | 04/06/2004 |
| 6604015 | Numerically controlled system and numerical control method A numerically controlled system includes a tool path sample point setting unit for forming evaluation data by arranging, virtually, a tool on a given scheduled path locus to come precisely into contact with a processed surface of a processing object and b... | 08/05/2003 |
| 6591160 | Self teaching robot A robot calibration system for calibration of a workpiece handling robot relative to a station. The workpiece handling robot includes a sensor mounted on an end effector. The robot calibration system also includes a target, which in coordination with the ... | 07/08/2003 |
| 6591148 | Numerical control device A numerical control device for synchronously controlling the movement of a plurality of axes of a machine by repeatedly controlling a cyclic motion. An axis of the machine is designed to stop at a predetermined position upon the occurrence of an emergency... | 07/08/2003 |
| 6567707 | Recording medium of CNC machine tool A recording medium of a CNC machine tool is used for storing a program specifying the operations to be executed by the CNC machine tool. The program comprises a master program and a slave program which can be called by the master program. The master progr... | 05/20/2003 |
| 6491482 | Milling method A milling method is provided in which a finished part of any desired contour is milled from a blank of any desired contour by the milling tool being guided on a continuous, spiral guide path from the blank continuously to the finished part. In this case, ... | 12/10/2002 |
| 6463357 | Method and system for precision operational control of automated machines A system and method for precision operational control of automated machines includes a motion element, an IMU (Inital Measuring Unit) installed at an end effector of the motion element for sensing and providing a motion measurement of the motion element, ... | 10/08/2002 |
| 6311100 | Tool path generator for computer aided manufacturing A technique is provided for utilizing a computer system to generate tool paths for the computed aided machining (CAM) in at least four axis of a selected workpiece or part, particularly a complex part having hidden surfaces. The technique involves storing... | 10/30/2001 |
| 6246924 | Apparatus and method for automatically realigning an end effector of an automated equipment to prevent a crash The present invention is an apparatus and method for automatically realigning an end effector of an automated equipment after an undesired contact of the end effector to prevent a crash of the end effector. The present invention includes a plurality of co... | 06/12/2001 |
| 6243657 | Method and apparatus for determining location of characteristics of a pipeline A pipeline inspection and defect mapping system includes a pig having an inertial measurement unit and a pipeline inspection unit for recording pig location and defect detection events, each record time-stamped by a highly precise onboard clock. The syste... | 06/05/2001 |
| 6205372 | System for adapting an automatic screw machine control achieve computer numeric control A system for adapting existing conventional screw machines to be capable of computer numerical control operation. The system incorporates the use of a VersaCam device which replaces the turret cam of a single spindle screw machine. The VersaCam system mon... | 03/20/2001 |
| 6007230 | Engraving system and method with arbitrary toolpath control The invention is characterized in that it comprises a toolpath generating routine and system for generating a plurality of control points directly from image data representing an image to be engraved. The control points are used to generate a toolpath whi... | 12/28/1999 |
| 5920170 | Numerical control apparatus and numerical control method A numerical control apparatus enables a tool to move parallel or vertical to a designated shape to easily carry out a machining of a prototype using general-purpose machine tools. A graphic storing device displays guidance information on a display unit th... | 07/06/1999 |
| 5825655 | Normal operating condition restoration device A normal operating condition restoration device which comprises: (a) taught point memory device for storing successive taught points that constitute a work line on which a tool travels in relation to a workpiece and storing taught points for retraction wh... | 10/20/1998 |
| 5654618 | Process for the two-dimensional determination of a work-area contour for lathes The invention pertains to a process for the two-dimensional determination of a work-area contour for collision monitoring of numerically controlled lathes. Disclosed is a process for the two-dimensional determination of a work-area contour wherein the wor... | 08/05/1997 |
| 5414633 | Path control method of tool withdrawal and resumption in CNC The path control method of tool withdrawal and resumption in CNC operation is capable of moving the tool along a prescribed path to a reference point to wait for the removal of interrupting factor. Upon the termination of interruption signal, the tool is ... | 05/09/1995 |
| 5387852 | Method of determining tool running path in N/C system In an numerical control machining system, a plurality of parts on a work are cut into predetermined shapes with one cutting tool by moving back and forth the cutting tool a plurality of times for each part to be cut. When determining a tool running path, ... | 02/07/1995 |
| 5363309 | Normal distance construction for machining edges of solid models A computer-based system and method is provided for positioning a cutter tool to an edge of a solid model in a computer aided manufacturing environment. A shortest distance and direction required to position the machine tool cutter to the edge of the solid... | 11/08/1994 |
| 5351196 | Method and apparatus for solids based machining The present invention relates to processes for the automatic generation of numerical control (NC) tool paths in a CAD/CAM environment. The present invention operates on mechanical parts described as solid models. The process employs well-defined solid mod... | 09/27/1994 |
| 5307549 | Apparatus and method for synchronized control of machine tools A machine tool for performing drilling operations at a high speed on a rotating workpiece and for subsequently performing threading operations while minimizing loss time due to speed changes, based upon synchronization of the workpiece with tools that sep... | 05/03/1994 |
| 5297060 | Method and tool for the digitizing of drilling jigs A method for digitizing drilling jigs comprising: insertion in a jig hole of a feeler pin provided with a rounded-shaped head having the same diameter as the hole, such feeler pin being connected to a measuring system suitable for finding its position con... | 03/22/1994 |
| 5246319 | Method and apparatus for creating tool path data for a numerically controlled cutter to create incised carvings A 2-dimensional drawing of closed shapes and/or letters is processed for incised carving with a conical tool. Each closed shape is processed independently to generate a plurality of connected cutter paths. While carving each path it is necessary to change... | 09/21/1993 |
