公开(公告)号：US08800397B2

公开(公告)日：2014-08-12

申请号：US13911166

申请日：2013-06-06

申请人： JTEKT Corporation

发明人： Yuji Sasaki ,  Hideki Iwai ,  Kimihiro Onishi ,  Yasumasa Sakurai

IPC分类号： F16H1/24 ,  F16H3/06 ,  F16H27/02 ,  F16H29/02 ,  F16H29/20 ,  G06F19/00 ,  G01B5/00

CPC分类号： B23Q3/18 ,  G05B19/404 ,  G05B2219/49206 ,  G05B2219/49207 ,  G05B2219/49212

摘要： Temperatures of a base, a support member, and a support member are measured, and amounts of linear expansion of the base, the support member, and the support member due to temperature differences from a reference temperature are computed. An amount of linear expansion of a ball screw with respect to the support member is measured. An amount of linear expansion of a lead of the ball screw is computed based on the sum of the aforementioned amounts of linear expansion, and an amount of rotation of the ball screw is adjusted from an amount of rotation of the ball screw at the reference temperature, to an amount of rotation of the ball screw, which corresponds to the amount of linear expansion of the lead at a predetermined temperature.

摘要翻译： 测量基座，支撑构件和支撑构件的温度，并且计算由于与参考温度的温度差引起的基座，支撑构件和支撑构件的线性膨胀量。 测量滚珠丝杠相对于支撑构件的线性膨胀量。 基于上述线膨胀量的总和，计算出滚珠丝杠的引线的线膨胀量，并且根据在参考温度下的滚珠丝杠的旋转量来调节滚珠丝杠的旋转量 与滚珠丝杠的旋转量相对应，其对应于在预定温度下的引线的线性膨胀量。

公开(公告)号：US20130004256A1

公开(公告)日：2013-01-03

申请号：US13170793

申请日：2011-06-28

申请人： Ching-Wei WU ,  Ying-Shing SHIAO ,  Chia-Hui TANG ,  Yu-Che WANG ,  Paul CHANG

发明人： Ching-Wei WU ,  Ying-Shing SHIAO ,  Chia-Hui TANG ,  Yu-Che WANG ,  Paul CHANG

IPC分类号： B23Q15/18

CPC分类号： B23Q15/18 ,  G05B2219/45145 ,  G05B2219/49207 ,  G05B2219/49219 ,  Y10T409/300896 ,  Y10T409/306832 ,  Y10T409/307224 ,  Y10T409/309744

摘要： A milling machine has a base, a work platform mounted movably on the base, and a ruler mounted on the work platform. The work platform is movable relative to a base axis. The thermal compensation system includes a sensor and a control unit. The sensor is configured to be mounted on the base for sensing a position of each of the work platform and the ruler relative to the base axis. The control unit is coupled to the sensor, and determines a work platform displacement and a ruler displacement according to the positions sensed by the sensor. The control unit further calculates a compensation value based on the work platform displacement and the ruler displacement. The control unit is configured to correct the position of the work platform relative to the base axis according to the compensation value.

摘要翻译： 铣床具有基座，可移动地安装在基座上的工作平台和安装在工作平台上的标尺。 工作平台相对于基础轴线是可移动的。 热补偿系统包括传感器和控制单元。 传感器被配置为安装在基座上，用于感测工作平台和标尺中的每一个相对于基轴的位置。 控制单元耦合到传感器，并根据传感器感测到的位置确定工作平台位移和尺子位移。 控制单元进一步基于工作平台位移和标尺位移来计算补偿值。 控制单元被配置为根据补偿值来校正工作平台相对于基准轴的位置。

公开(公告)号：US08244396B2

公开(公告)日：2012-08-14

申请号：US12447246

申请日：2007-09-13

申请人： Hiroshi Terai ,  Takao Tatemi ,  Hidenori Sato ,  Hiroaki Kazama

发明人： Hiroshi Terai ,  Takao Tatemi ,  Hidenori Sato ,  Hiroaki Kazama

IPC分类号： B23B25/06 ,  G06F19/00 ,  B23Q17/22

CPC分类号： B23Q11/0007 ,  B23B25/06 ,  B23Q39/021 ,  B23Q2039/008 ,  G05B19/404 ,  G05B2219/49207 ,  Y10T82/10 ,  Y10T82/2502 ,  Y10T82/2514 ,  Y10T82/2524 ,  Y10T82/2541 ,  Y10T82/2566 ,  Y10T82/2568 ,  Y10T82/2571 ,  Y10T82/2597 ,  Y10T408/8588

摘要： The turning machine according to the present invention includes a displacement sensor (200) which measures a distance between an immobile reference point and a position of variable point which reflects the positional displacement of the tool, the immobile reference point being able to determine a relative positional correlation relating to a variable position of tools with the progress of machining of the workpiece (W) by the tool (421). In drawings the reference point is set up in the guide bush (90). And based on the measured result by the displacement sensor, the tool is moved so that the center height of the tool and the center line of the workpiece satisfy relatively the predetermined positional correlation. Accordingly, the center height deviation amount due to heat deformation and the like is corrected.

摘要翻译： 根据本发明的车床包括位移传感器（200），该位移传感器测量不固定参考点与反映工具的位置位移的可变点位置之间的距离，该固定参考点能够确定相对位置 通过工具（421）随着加工工件（W）的进展而关于刀具的可变位置的相关性。 在图中，参考点设置在导套（90）中。 并且基于位移传感器的测量结果，使刀具移动，使得刀具的中心高度和工件的中心线相对于预定的位置相关性。 因此，由于热变形等引起的中心高度偏差量被校正。

公开(公告)号：US20100066298A1

公开(公告)日：2010-03-18

申请号：US12440855

申请日：2007-05-11

申请人： Ralph COLEMAN

发明人： Ralph COLEMAN

IPC分类号： G05B1/01

CPC分类号： G01B5/0014 ,  G01D5/34746 ,  G05B2219/37193 ,  G05B2219/40293 ,  G05B2219/49207 ,  Y10T409/307728 ,  Y10T409/308288

摘要： In a positioning device in gantry type of construction, due to a special arrangement of the position-measuring devices used for the positioning, errors due to thermal expansion of the positioning device may be avoided to a great extent. In particular, attention is given to the advantageous placement of fixed point of a scale relative to a straightness track of a further scale.

摘要翻译： 在台架式结构中的定位装置中，由于用于定位的位置测量装置的特殊布置，可以在很大程度上避免由于定位装置的热膨胀引起的误差。 特别地，注意到相对于进一步刻度的直线轨迹的刻度的固定点的有利放置。

公开(公告)号：US20090009018A1

公开(公告)日：2009-01-08

申请号：US12216488

申请日：2008-07-07

申请人： Hironori Kameno

发明人： Hironori Kameno

IPC分类号： H02K7/09

CPC分类号： F16C32/044 ,  B23Q15/18 ,  F16C2322/39 ,  G05B2219/45161 ,  G05B2219/49207

摘要： Displacement data of axial position targets measured by axial displacement sensors is transmitted to a first main spindle elongation computation section, which then computes elongation of a main spindle between the axial position targets. The computation result is transmitted to a second main spindle elongation computation section, which then computes elongation of the main spindle between one of the axial position targets provided on the side of a tool and the tool. The computation result is transmitted to an axial position control section. The axial position control section changes the power to be supplied to axial magnetic bearing parts, thereby controlling the axial position of the main spindle so that the axial position of the tool becomes constant.

摘要翻译： 由轴向位移传感器测量的轴向位置目标的位移数据被传送到第一主轴伸长计算部分，然后计算主轴在轴向位置目标之间的伸长率。 计算结果被传送到第二主轴伸长计算部分，该部分随后计算在设置在工具侧面的轴向位置目标之一和工具之间的主轴的伸长率。 计算结果被传送到轴向位置控制部。 轴向位置控制部将要供给到轴向磁性轴承部的功率变更，从而控制主轴的轴向位置，使得工具的轴向位置恒定。

公开(公告)号：US06980881B2

公开(公告)日：2005-12-27

申请号：US10644149

申请日：2003-08-20

申请人： Thomas A. Greenwood ,  Thomas W. Pastusak

发明人： Thomas A. Greenwood ,  Thomas W. Pastusak

IPC分类号： B25J9/16 ,  G05B19/401 ,  G06F19/00

CPC分类号： G05B19/401 ,  B25J9/1692 ,  G05B2219/39033 ,  G05B2219/49207 ,  G05B2219/50057

摘要： 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 enclosing the machine in a thermal enclosure, by careful calibration, or by mounting a laser interferometer on each axis. These solutions are costly, may require frequent recalibration, and do not correct for small rotations of one axis relative to another axis due to wear etc. The present invention uses an interferometric laser tracker or a comparable 3D position sensor to measure the position of a retroreflector attached to the end effector, e.g. a machine head when the machine comes to rest. A computer compares the measured position to the desired position according to the machine media, and adds the appropriate correction with trickle feed media statements to move the machine to the correct position prior to further machining.

摘要翻译： 大型机器，特别是那些工作信封超过十五英尺的机器，由于轴的热膨胀和机械的不对准而表现出不可接受的误差。 传统上通过将机器封装在热封闭中，通过仔细校准，或者通过在每个轴上安装激光干涉仪来将误差降至最低。 这些解决方案是昂贵的，可能需要经常重新校准，并且由于磨损等而不能针对相对于另一个轴的一个轴的小转动进行校正。本发明使用干涉式激光跟踪器或可比较的3D位置传感器来测量后向反射器的位置 连接到末端执行器，例如 当机器休息时机头。 计算机根据机器介质将测量位置与所需位置进行比较，并在进行进一步加工之前将机器加入适当的校正，并将其移动到正确的位置。

公开(公告)号：US5258698A

公开(公告)日：1993-11-02

申请号：US727568

申请日：1991-07-09

申请人： Luigi Piovano ,  Guido Gaida ,  Giuseppe Franciscono ,  Renato Ottone

发明人： Luigi Piovano ,  Guido Gaida ,  Giuseppe Franciscono ,  Renato Ottone

IPC分类号： B23B41/00 ,  G05B19/402 ,  H05K3/00 ,  H02P5/40 ,  B23B39/08

CPC分类号： H05K3/0047 ,  G05B19/402 ,  G05B2219/49207 ,  G05B2219/49208 ,  G05B2219/49237 ,  H05K2201/10151 ,  H05K2203/0207 ,  H05K2203/1105 ,  Y10T408/37 ,  Y10T483/138

摘要： The device is provided on a machine tool, wherein the drilling or milling operating head (12) comprises an axially movable spindle (14) and a workpiece hold-down (17), and wherein the working depth is controlled according to the relative position of the tool (16) with respect to the hold-down (17), defined by sensing a reference member (56) by means of the tool (16). To avoid the errors due to the thermal expansion in defining the reference position between the tool and the hold-down, before the reference member (56) is sensed, an electric power supply heats the spindle (14) by sequentially energizing the phases of the statoric coil of the spindle electric motor (76). The reference member (56) comprises a proximity sensor (64) operated by the tool (16) through an air pad piston (67).

公开(公告)号：US3045510A

公开(公告)日：1962-07-24

申请号：US85933159

申请日：1959-12-14

申请人： KEARNEY & TRECKER CORP

发明人： BRAINARD WALLACE E

IPC分类号： B23Q11/00 ,  G05B19/35

CPC分类号： G05B19/351 ,  B23Q11/0007 ,  G05B2219/37096 ,  G05B2219/49207 ,  Y10T408/08 ,  Y10T408/175 ,  Y10T409/3098

公开(公告)号：US09849529B2

公开(公告)日：2017-12-26

申请号：US14676883

申请日：2015-04-02

申请人： FANUC Corporation

发明人： Daisuke Yoshizaki ,  Yoshinori Makino

IPC分类号： B23H7/20 ,  G05B19/404 ,  B23H7/02 ,  B23H7/18 ,  B23H7/06

CPC分类号： B23H7/20 ,  B23H7/02 ,  B23H7/06 ,  B23H7/18 ,  B23H2500/20 ,  G05B19/404 ,  G05B2219/45043 ,  G05B2219/49206 ,  G05B2219/49207

摘要： There is provided a wire electrical discharge machine that includes a temperature detection unit, an actual position correction amount calculation unit, a correction amount calculation unit, a correction amount adjustment unit, a position correction amount adjustment unit, and a corrective movement amount calculation unit. The actual position correction amount calculation unit calculates an actual position correction amount for an upper/lower guide section in accordance with reference position coordinates at a reference temperature and with actual position coordinates at a temperature different from the reference temperature. The correction amount calculation unit uses a prepared correction amount arithmetic expression. The correction amount adjustment unit calculates a correction amount adjustment value from the actual position correction amount and the position correction amount.

公开(公告)号：US20130104707A1

公开(公告)日：2013-05-02

申请号：US13456332

申请日：2012-04-26

申请人： Atsushi NAKAGAWA

发明人： Atsushi NAKAGAWA

IPC分类号： B23Q17/22 ,  B23B25/06

CPC分类号： B23Q17/22 ,  B23B25/06 ,  B23Q11/0007 ,  B23Q17/225 ,  G05B19/404 ,  G05B2219/49206 ,  G05B2219/49207 ,  G05B2219/49212 ,  Y10T82/2502 ,  Y10T82/2508 ,  Y10T82/2535 ,  Y10T82/2552 ,  Y10T82/2572

摘要： A machine tool includes a spindle side position measuring unit measuring a spindle axial position in a spindle radial direction relative to a first reference position and a tool side position measuring unit measuring the position of a tool post relative to a second reference position. The spindle side position measuring unit includes a first scale extending in the spindle radial direction and a first readout unit, one of a base end portion of the first scale and the first readout unit is disposed at a spindle axis and the other of the base end portion of the first scale and the first readout unit is disposed at the first reference position. One of a base end portion of a second scale and a second readout unit is disposed on the tool post and the other is disposed at the second reference position.

摘要翻译： 机床包括：主轴侧位置测量单元，其相对于第一基准位置测量心轴径向心轴轴向位置;以及刀具侧位置测量单元，其测量刀架相对于第二参考位置的位置。 主轴侧位置测量单元包括沿主轴径向延伸的第一刻度和第一读出单元，第一刻度尺的基端部和第一读出单元中的一个设置在主轴轴线处，另一个基端 第一刻度和第一读出单元的一部分设置在第一基准位置。 第二标尺的基端部和第二读出单元中的一个设置在工具柱上，另一个设置在第二基准位置。