Class / Patent application number | Description | Number of patent applications / Date published |
700193000 | Positional compensation or modification compensation or mod | 26 |
20080269944 | Method for the Determination of a Rough Trajectory to Be Floowed in a Positionally Guided Manner - According to the invention, an initial trajectory ( | 10-30-2008 |
20090037017 | METHOD AND APPARATUS FOR A DISPLACEMENT CORRECTION FOR A MACHINE TOOL - A machine for machining a work piece with at least one revolving or rotating tool, having a ball screw, which is pivoted by a fix and a floating bearing whereas the machine has a device for measuring the length of the extension of the ball screw. Furthermore, a method is provided for measuring and compensation a thermal displacement comprising the steps of: detecting the length U of the axis of the ball screw, detecting the length I | 02-05-2009 |
20090112356 | NUMERICAL CONTROL APPARATUS WITH MANUAL SHIFT OPERATION FUNCTIONALITY - A numerical control apparatus provides for manual shift operation involving feed shafts of a machine tool in terms of a work coordinate system easily and readily understood by an operator. The numerical control apparatus includes a manual shift amount input unit for receiving an amount of manual shift involving linear feed shafts as operator-input data in terms of a work coordinate system defined on the work revolved or rotated by a rotary feed shaft. The numerical control apparatus further includes a manual shift amount cumulative storage for cumulatively storing the received amount of manual shift in terms of a work coordinate system. Also included is a cumulative shift amount coordinate converter for converting the cumulative amount of shift from the work coordinate system data to data in terms of machine coordinate system defined on the machine tool. The apparatus's manual shift amount superimposing unit then superimposes the converted cumulative amount of shift on a controlled variable commanded in a machining program to generate the result to servo drivers. | 04-30-2009 |
20090271028 | KINEMATIC SINGULAR POINT COMPENSATION SYSTEMS - Systems and methods for handling kinematic singular points in a process path are disclosed. In one embodiment, a numerically controlled (NC) processing system includes a materials processing installation having a multi-axis kinematic linkage operable to position a tip portion of the linkage along a predetermined process path. The system also includes a processor having a compensation system operable to detect a singular point in the process path and to improve the accuracy tip portion positioning near the singular point. | 10-29-2009 |
20100145499 | METHOD FOR PROCESSING WORKPIECE IN TOOL MACHINE AND BEHAVIOR MEASUREMENT DEVICE - In a method for processing a workpiece in a tool machine, a first step (Step S | 06-10-2010 |
20100249982 | DISPLACEMENT COMPENSATION CONTROL METHOD AND MODULE FOR AN OBJECT MOUNTED MOVABLY ON A DRIVING ROD UNIT - In a displacement compensation control method and module for an object mounted movably on a driving rod unit and movable between first and second positions relative to the driving rod unit during processing, a detecting unit determines a displacement amount of a free end of the driving rod unit from a reference position in an axial direction of the driving rod unit as a result of thermal deformation of the driving rod unit during high-speed rotation. A control unit controls the driving rod unit to rotate based on the displacement amount so that the object moves between first and second compensation positions relative to the driving rod unit. A distance between the first position and the first compensation position, and a distance between the second position and the second compensation position are equal to the displacement amount. | 09-30-2010 |
20110137450 | METHOD AND DEVICE FOR COMPENSATING FOR POSITIONAL AND SHAPE DEVIATIONS - A method for compensating positional and/or shape deviations in NC-controlled cutting production machines The method including the steps of securing a new workpiece, processing the workpiece using nominal data of the NC program, acquiring set deviation, optimizing the NC program using the acquired data and repeating the above steps until at least one of required positional and shape tolerances are achieved. | 06-09-2011 |
20110213490 | METHOD OF DETECTING A DYNAMIC PATH OF A FIVE-AXIS MACHINE TOOL AND DETECTING ASSEMBLY FOR THE SAME - A method of detecting a dynamic path of a five-axis machine tool having a spindle and a turntable and has a preparing step, a correcting step and a detecting step. The preparing step includes mounting a detector on the spindle, mounting a cat-eye reflector on the turntable, emitting a laser light to the cat-eye reflector, reflecting the laser light to the detector and splitting into two light beams. One of the light beams is emitted to a four-quadrant position sensitive detector. The correcting step includes rotating the detector, detecting a signal of the laser light by the four-quadrant position sensitive detector to eliminate an offset between the detecting assembly and the spindle. The detecting step includes detecting the dynamic path of the five-axis machine tool by detecting the positions of at least two of the linear axes and at least one of the rotation axes of the five-axis machine tool. | 09-01-2011 |
20110288677 | MACHINING INSTALLATION FOR WORKPIECES - A machining installation for workpieces comprises a workpiece positioning device comprising a workpiece holder pivot unit as well as a tool positioning device comprising a tool holder pivot unit. The workpiece holder pivot unit is designed such that a workpiece holder is pivotable about at least three and no more than four workpiece holder pivot axes. Moreover, the tool holder pivot unit is designed such that a tool holder is pivotable about no more than two tool holder pivot axes. The machining installation has a simple design and ensures flexible and accurate machining of workpieces. | 11-24-2011 |
20120065769 | SYSTEM AND METHOD FOR TOOL TESTING AND ALIGNMENT - A system and method for improving a tool tip path of a machine, such as a waterjet cutting machine, by testing and compensating for tool misalignment. The system and method using a sensor positioned to sense a portion of the machine, such as a cutting head assembly, during a sequence of movements thereof and configured to output information indicative of various positions and orientations of a tool of the machine so as to generate an improved tool tip path based on transformation parameters derived from such information. | 03-15-2012 |
20120130531 | AUTOMATIC CALIBRATION AND COMPENSATION FOR A CNC MACHINE TABLE AND AN ASSOCIATED PROBE - A method for calibrating a CNC machine comprises mounting a gauge to a table of the CNC machine and calibrating a probe to the gauge mounted on the CNC machine. A total deviation of the probe and an actual table center position from a nominal table center position for a coordinate system associated with the CNC machine are determined. A controller operatively connected to the CNC machine and the probe is programmed to compensate for the total deviation. | 05-24-2012 |
20120253505 | METHOD AND PROGRAM FOR CALCULATING CORRECTION VALUE FOR MACHINE TOOL - The present invention provides a method of computing a correction value for the machine tool having two or more translational axes and one or more rotational axes for correcting error in a position and an orientation of the tool with respect to a workpiece due to the geometric error. The method includes a rotational axis correction value computing step (S | 10-04-2012 |
20120253506 | METHOD AND PROGRAM FOR CALCULATING CORRECTION VALUE FOR MACHINE TOOL - The present invention provides a method and the like that are capable of calculating a correction value for a rotational axis and make it possible to correct an error in position or position and posture of a tool, which results from a geometric error, correct an error in posture of the tool, and also enhance the accuracy in machining by preventing a translational axis from operating in an infinitesimal manner due to a correction command. In a machine tool having two or more translational axes and one or more rotational axes, a correction value for each of the translational axes is calculated using a command position of each of the rotational axes, a coordinate value of a correction reference point as one point designated in advance in a command position space of each of the translational axes, and a geometric parameter representing the geometrical error. | 10-04-2012 |
20130173047 | Micro-machining Tool and Control System thereof - A micro-machining tool is disclosed herein. It includes a micro-moving platform, a supporting device to support the micro-moving platform, an anti-rotation device embedded in a bar for preventing the supporting device from rotating, and a fixing device for fixing the supporting device for limiting its rotation as the bar is moving. | 07-04-2013 |
20130238114 | WIRE ELECTRIC DISCHARGE MACHINE CONTROLLER FOR CORRECTING MACHINING ROUTE USING PROGRAM COMMANDS - A block in an electric discharge machining program is read out and analyzed, and when determined that a machining route correction command is issued to correct the machining route at a corner formed by consecutive first and second machining blocks, the machining route is corrected such that the end point of the first machining block, an extension point obtained by extending the first machining block from the end point thereof by a predetermined distance in the machining advancing direction, and a new start point obtained by partially removing the second machining block by a predetermined distance from the start point thereof are connected. Then, the wire electrode is moved with respect to the workpiece, following the corrected machining route. | 09-12-2013 |
20130304249 | WORKING APPARATUS FOR COMPONENT OR BOARD AND COMPONENT MOUNTING APPARATUS - This working apparatus for a component or a board includes a head unit and a control portion. The control portion performs control of calculating a rotation angle in a horizontal plane of the head unit from displacement of the center of a first imaging portion and displacement of the center of a second imaging portion and correcting the center position of a working mechanism portion on the basis of the amount of rotation-induced displacement of the center of the working mechanism portion due to the rotation angle, a first amount of displacement in a first direction in the horizontal plane being not induced by rotation of the center of the working mechanism portion, and a second amount of displacement in a second direction in the horizontal plane being not induced by the rotation of the center of the working mechanism portion when moving the head unit. | 11-14-2013 |
20140107832 | COORDINATED JOINT MOTION CONTROL SYSTEM WITH POSITION ERROR CORRECTION - Disclosed are an articulated hydraulic machine supporting, control system and control method for same. The articulated hydraulic machine has an end effector for performing useful work. The control system is capable of controlling the end effector for automated movement along a preselected trajectory. The control system has a position error correction system to correct discrepancies between an actual end effector trajectory and a desired end effector trajectory. The correction system can employ one or more absolute position signals provided by one or more acceleration sensors supported by one or more movable machine elements. Good trajectory positioning and repeatability can be obtained. A two joystick controller system is enabled, which can in some cases facilitate the operator's task and enhance their work quality and productivity. | 04-17-2014 |
20140364993 | CONTROL METHOD FOR MACHINE TOOL - In a control method for a machine tool including two or more translation axes and at least one rotation axis, a command for a distal end position of a tool and an attitude of the tool is provided to correct an error in the distal end position and the attitude with respect to a workpiece due to a geometric error to calculate a command value for controlling the translation axes. The method includes calculating the command value on the basis of a command coordinate value for the distal end position, a converted coordinate value obtained by converting a coordinate value of a rotation center point of the rotation axis in an actual state into a coordinate value without an error in inclination, and an axial unit vector for the ideal rotation axis. | 12-11-2014 |
20150338839 | SYSTEM TO VERIFY MACHINING SETUP - A setup verification system for a machining process is disclosed. The setup verification system includes a console, a master component, and a modified machining station. The consoled includes a console fixture and a locator affixed to the console fixture. The master component is within the console fixture and in contact with the locator. The master component includes a feature machined into the master component. The modified machining station includes a housing and an instrumented tool coupled to the housing. The instrumented tool includes a tool shaft and a sensor attached to the tool shaft. | 11-26-2015 |
20150370242 | THERMAL DISPLACEMENT CORRECTION DEVICE FOR WORKING MACHINE - Provided is a thermal displacement correction device for a working machine that includes a thermal displacement correction amount calculation unit for calculating a thermal displacement correction amount and configured to correct a thermal displacement amount caused by heat generated and radiated from the working machine and changing with time by the thermal displacement correction amount, the thermal displacement correction device for the working machine including: a correction error coefficient storage memory; a correction precision calculation unit configured to calculate the correction precision of the thermal displacement correction amount based on the thermal displacement correction amount and the correction error coefficient; and a correction precision degradation notification unit. | 12-24-2015 |
20150378347 | NUMERICAL CONTROL DEVICE - A numerical control device includes: a control unit controlling movement of shafts of a machine tool by a position command according to a machining program and acquiring position information on the shafts; a monitoring point determination unit determining a monitoring point in the machining program and a monitoring shaft according to the type of an instruction or an instruction related to travel described in the machining program; and a monitoring unit monitoring whether error or deviation based on the position information at the monitoring point of the monitoring shaft exceeds a predetermined threshold, wherein the control unit controls movement of the shafts based on the monitoring result of the monitoring unit, and the numerical control device further comprises an analysis unit presenting whether the cause of the error or deviation is a mechanical factor or a control factor based on the monitoring result and outputting the analysis result. | 12-31-2015 |
20160039092 | CONTROL DEVICE FOR ROBOT THAT PERFORMS WORK BY PRESSING TOOL AGAINST WORKPIECE - A robot control device includes a correction amount calculation unit that calculates a correction amount for collecting a deviation of a tip position of a tool attached to a tip of a robot due to an external force applied to the tool and a correction profile generation unit that generates a correction profile indicating a relationship between the correction amount calculated by the correction amount calculation unit and time. | 02-11-2016 |
20160114449 | METHOD OF CONTROLLING FEED AXES IN MACHINE TOOL, AND MACHINE TOOL PERFORMING MACHINING BY USING THE METHOD OF CONTROLLING FEED AXES - Maximum values of actual machining allowances of a workpiece in respective cutting flutes are averaged by control amounts of respective cutting flutes calculated by an arithmetic unit. The arithmetic unit converts the calculated control amounts into an amount in each axis direction and subtracts the value from a feed axis command value in an NC program stored in a storage unit. Then, a numeral value control unit performs machining by controlling respective feed axes based on the subtracted feed axis command value. | 04-28-2016 |
20160176004 | POSITION CONTROLLER OF FEED AXIS IN MACHINE TOOL | 06-23-2016 |
20170232575 | METHOD FOR DETERMINING LOCATION OF A LENS MACHINING TOOL IN A TURNING MACHINE CONFIGURED FOR MACHINING OPHTALMIC LENSES | 08-17-2017 |
20180024525 | NUMERICAL CONTROLLER | 01-25-2018 |