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1. 发明申请

US20180313403A1 FAILURE DETECTION DEVICE FOR SPINDLE HEAD OF MACHINE TOOL INCLUDING A PLURALITY OF SENSORS 审中-公开
公开(公告)号：US20180313403A1
公开(公告)日：2018-11-01
申请号：US15959952
申请日：2018-04-23
申请人： FANUC CORPORATION
发明人： Yohei Kamiya
IPC分类号： F16C19/52 , G07C3/08 , G05B19/18
CPC分类号： F16C19/527 , F16C19/52 , F16C19/525 , F16C33/44 , G05B19/182 , G05B19/406 , G05B2219/37375 , G05B2219/37435 , G05B2219/50186 , G07C3/00 , G07C3/08
摘要： A failure detection device includes a formaldehyde sensor that detects the generation of formaldehyde, a vibration sensor that detects vibration of a spindle head, and a machine controller that detects the occurrence of an abnormality of a spindle bearing. The machine controller determines the occurrence of the abnormality of the spindle bearing and a cause of the abnormality based on a change in the output value of the formaldehyde sensor over time and a change in the output value of the vibration sensor over time.

2. 发明申请

US20150352679A1 ABNORMALITY DIAGNOSIS DEVICE FOR MACHINE TOOL, AND ABNORMALITY DIAGNOSIS METHOD 审中-公开
标题翻译：机器工具异常诊断装置及不正常诊断方法
公开(公告)号：US20150352679A1
公开(公告)日：2015-12-10
申请号：US14761991
申请日：2014-03-05
申请人： MITSUBISHI HEAVY INDUSTRIES, LTD.
发明人： Hideaki YAMAMOTO , Koji IWATA
IPC分类号： B23Q17/00
CPC分类号： B23Q17/00 , B23Q17/007 , B23Q17/2208 , G05B19/4061 , G05B2219/37388 , G05B2219/42328 , G05B2219/50186
摘要： Provided is an abnormality diagnosis device for a machine tool, and an abnormality diagnosis method, whereby it is possible to diagnose the degree of damage to a spindle system due to a collision. An abnormality diagnosis device (40) for a machine tool (1) has: a displacement sensor (36) for detecting the amount of displacement of a spindle bearing (30); an acceleration sensor (38) for detecting the acceleration of a ram (28); a collision determination unit (46) for determining whether the ram or a spindle (32) has collided with a work piece, on the basis of at least the amount of displacement of the spindle bearing detected by the displacement sensor or the acceleration of the ram detected by the acceleration sensor; and a damage determination unit (50) for determining the degree of damage to the spindle bearing on the basis of at least the amount of displacement of the spindle bearing, the acceleration of the ram, or a frequency characteristic of vibration of the ram due to rotation of the spindle obtained from the acceleration of the ram, when the collision determination unit determines that the ram or the spindle has collided with the work piece.
摘要翻译：提供了一种用于机床的异常诊断装置和异常诊断方法，由此可以诊断由于碰撞导致的主轴系统的损坏程度。一种用于机床（1）的异常诊断装置（40）具有：位移传感器（36），用于检测主轴轴承（30）的位移量; 用于检测冲头（28）的加速度的加速度传感器（38）; 基于至少由位移传感器检测到的主轴轴承的位移量或冲头的加速度来确定冲头或主轴（32）是否与工件碰撞的碰撞判定单元（46）由加速度传感器检测; 以及用于基于至少主轴轴承的位移量，冲头的加速度或由于冲头的振动的频率特性来确定主轴轴承的损坏程度的损坏确定单元（50）当碰撞确定单元确定冲头或主轴已经与工件碰撞时，从冲头的加速度获得的主轴的旋转。

3. 发明授权

US09122258B2 Motor control device 有权
标题翻译：电机控制装置
公开(公告)号：US09122258B2
公开(公告)日：2015-09-01
申请号：US14116914
申请日：2012-04-02
申请人： Hiroyuki Sekiguchi , Hidetoshi Ikeda , Kiyoshi Maekawa , Takashi Isoda , Shuya Sano
发明人： Hiroyuki Sekiguchi , Hidetoshi Ikeda , Kiyoshi Maekawa , Takashi Isoda , Shuya Sano
IPC分类号： H02P3/00 , G05B13/02 , H02P23/14
CPC分类号： G05B13/02 , G05B19/406 , G05B2219/37435 , G05B2219/50186 , H02P23/14
摘要： A motor control device includes an operation determination unit that determines whether a motor is in an operating state or in a stopped state based on an operation command signal or an operation signal and an amplitude estimation unit that, based on a determination result of the operation determination unit, sequentially estimates a vibration amplitude value from a control state quantity of a feedback control unit or a current control unit separately for a case where the motor is operated and a case where the motor is stopped and outputs the vibration amplitude value. A function of outputting an amplitude of a high-frequency vibration that occurs in a mechanical device including a control system as information useful for estimating an occurrence factor of the vibration is provided.
摘要翻译：一种电动机控制装置，其特征在于，包括：运算判定部，其基于运转指令信号或者运算信号来判定电动机是处于运转状态还是处于停止状态;以及幅度估计部，其基于所述运算判定的判定结果单元依次估计来自反馈控制单元或电流控制单元的控制状态量的振动振幅值，用于电动机操作的情况和电动机停止的情况，并输出振动振幅值。提供了输出在包括控制系统的机械装置中发生的高频振动幅度作为有助于估计振动的发生因素的信息的功能。

4. 发明申请

US20120173012A1 MAIN SPINDLE DEVICE OF MACHINE TOOL 有权
标题翻译：主要工具主轴装置
公开(公告)号：US20120173012A1
公开(公告)日：2012-07-05
申请号：US13390654
申请日：2010-09-22
申请人： Shigeru Matsunaga
发明人： Shigeru Matsunaga
IPC分类号： G05B19/406
CPC分类号： B23Q1/70 , B23Q15/12 , B23Q17/00 , F16C2233/00 , G05B2219/49044 , G05B2219/49086 , G05B2219/50186 , Y10T29/5172 , Y10T29/5173 , Y10T483/1705 , Y10T483/1733 , Y10T483/1743
摘要： Loads that act on all the bearings that support a main spindle are derived from a variation in the state of the main spindle and, in addition, raceway surface contact pressures of the respective bearings are analyzed, so it is possible to accurately keep track of the state of each bearing. Then, when the raceway surface contact pressure exceeds a corresponding threshold, a machining condition is changed to execute control such that the raceway surface contact pressure does not exceed the corresponding threshold, and, furthermore, when the raceway surface contact pressure exceeds the corresponding threshold even when the machining condition is changed, the main spindle is controlled to stop, so it is possible to prevent a seizure of each bearing. Thus, it is possible to improve machining accuracy by controlling the main spindle with high accuracy.
摘要翻译：作用在支撑主轴的所有轴承上的负载来自主轴状态的变化，并且分析各个轴承的滚道表面接触压力，因此可以准确地跟踪每个轴承的状态。然后，当滚道面接触压力超过相应的阈值时，改变加工条件以执行控制，使得滚道面接触压力不超过相应的阈值，此外，当滚道面接触压力甚至超过相应的阈值时当加工条件改变时，主轴被控制停止，因此可以防止每个轴承的卡住。因此，通过高精度地控制主轴，能够提高加工精度。

5. 发明申请

US20010037888A1 Automatic tool changer 失效
标题翻译：自动换刀
公开(公告)号：US20010037888A1
公开(公告)日：2001-11-08
申请号：US09849268
申请日：2001-05-07
申请人： Mori Seiki Co., Ltd.
发明人： Yoshiaki Akamatsu , Makoto Fujishima
IPC分类号： B25D001/00
CPC分类号： B23Q3/1554 , B23Q5/341 , B23Q2003/155428 , B23Q2003/155439 , G05B2219/42328 , G05B2219/50186 , Y10T483/136 , Y10T483/1755 , Y10T483/176 , Y10T483/1767
摘要： The present invention provides an automatic tool changer which is adapted to detect the end of the service life of a bearing of a cam follower for systematic replacement of the bearing. The automatic tool changer comprises: a tool changer mechanism (26) including a rotation shaft, a changer arm fixed to the rotation shaft, a cam follower attached to the rotation shaft and having an engagement roller rotatably supported by a bearing, a cam engaged with the engagement roller of the cam follower, and driving means for driving the cam; and a controlling section (57) for controlling an operation of the tool changer mechanism (26). The tool changer further comprises a service life end detecting section (9) for counting the number of times of the operation performed by the tool changer mechanism (26) and judging whether or not the count of the number reaches a reference operation number serving as a basis for the detection of the end of the service life of the bearing. With this arrangement, maintenance can systematically be carried out by detecting the end of the service life of the bearing of the cam follower.
摘要翻译：本发明提供了一种自动换刀装置，其适用于检测凸轮从动件的轴承的使用寿命的终点，以便系统地更换轴承。自动换刀装置包括：一个工具更换器机构，包括一个旋转轴，一个固定在旋转轴上的换向器臂，一个安装在旋转轴上的凸轮从动件，具有一个由轴承可转动地支承的啮合辊，凸轮从动件的接合辊和用于驱动凸轮的驱动装置; 以及用于控制所述换刀机构（26）的操作的控制部（57）。所述换刀装置还包括使用寿命终止检测部（9），用于对由所述换刀机构（26）进行的操作次数进行计数，并判断所述数量的计数是否达到作为检测轴承使用寿命结束的基础。通过这种布置，可以通过检测凸轮从动件的轴承的使用寿命的结束来系统地进行维护。

6. 发明授权

US09020629B2 Main spindle device of machine tool 有权
标题翻译：机床主轴装置
公开(公告)号：US09020629B2
公开(公告)日：2015-04-28
申请号：US13390654
申请日：2010-09-22
申请人： Shigeru Matsunaga
发明人： Shigeru Matsunaga
IPC分类号： G06F19/00 , B23Q1/70 , B23Q15/12 , B23Q17/00 , B23B11/00 , B23B35/00 , B23C1/00 , B23Q3/155 , B23Q3/157
CPC分类号： B23Q1/70 , B23Q15/12 , B23Q17/00 , F16C2233/00 , G05B2219/49044 , G05B2219/49086 , G05B2219/50186 , Y10T29/5172 , Y10T29/5173 , Y10T483/1705 , Y10T483/1733 , Y10T483/1743
摘要： Loads that act on all the bearings that support a main spindle are derived from a variation in the state of the main spindle and, in addition, raceway surface contact pressures of the respective bearings are analyzed, so it is possible to accurately keep track of the state of each bearing. Then, when the raceway surface contact pressure exceeds a corresponding threshold, a machining condition is changed to execute control such that the raceway surface contact pressure does not exceed the corresponding threshold, and, furthermore, when the raceway surface contact pressure exceeds the corresponding threshold even when the machining condition is changed, the main spindle is controlled to stop, so it is possible to prevent a seizure of each bearing. Thus, it is possible to improve machining accuracy by controlling the main spindle with high accuracy.
摘要翻译：作用在支撑主轴的所有轴承上的负载来自主轴状态的变化，并且分析各个轴承的滚道表面接触压力，因此可以准确地跟踪每个轴承的状态。然后，当滚道面接触压力超过相应的阈值时，改变加工条件以执行控制，使得滚道面接触压力不超过相应的阈值，此外，当滚道面接触压力甚至超过相应的阈值时当加工条件改变时，主轴被控制停止，因此可以防止每个轴承的卡住。因此，通过高精度地控制主轴，能够提高加工精度。

7. 发明申请

US20140077746A1 MOTOR CONTROL DEVICE 有权
标题翻译：电机控制装置
公开(公告)号：US20140077746A1
公开(公告)日：2014-03-20
申请号：US14116914
申请日：2012-04-02
申请人： Hiroyuki Sekiguchi , Hidetoshi Ikeda , Kiyoshi Maekawa , Takashi Isoda , Shuya Sano
发明人： Hiroyuki Sekiguchi , Hidetoshi Ikeda , Kiyoshi Maekawa , Takashi Isoda , Shuya Sano
IPC分类号： G05B13/02
CPC分类号： G05B13/02 , G05B19/406 , G05B2219/37435 , G05B2219/50186 , H02P23/14
摘要： A motor control device includes an operation determination unit that determines whether a motor is in an operating state or in a stopped state based on an operation command signal or an operation signal and an amplitude estimation unit that, based on a determination result of the operation determination unit, sequentially estimates a vibration amplitude value from a control state quantity of a feedback control unit or a current control unit separately for a case where the motor is operated and a case where the motor is stopped and outputs the vibration amplitude value. A function of outputting an amplitude of a high-frequency vibration that occurs in a mechanical device including a control system as information useful for estimating an occurrence factor of the vibration is provided.
摘要翻译：一种电动机控制装置，其特征在于，包括：运算判定部，其基于运转指令信号或者运算信号来判定电动机是处于运转状态还是处于停止状态;以及幅度估计部，其基于所述运算判定的判定结果单元依次估计来自反馈控制单元或电流控制单元的控制状态量的振动振幅值，用于电动机操作的情况和电动机停止的情况，并输出振动振幅值。提供了输出在包括控制系统的机械装置中发生的高频振动幅度作为有助于估计振动的发生因素的信息的功能。

8. 发明授权

US06508314B2 Automatic tool changer 失效
标题翻译：自动换刀
公开(公告)号：US06508314B2
公开(公告)日：2003-01-21
申请号：US09849268
申请日：2001-05-07
申请人： Yoshiaki Akamatsu , Makoto Fujishima
发明人： Yoshiaki Akamatsu , Makoto Fujishima
IPC分类号： B23Q3157
CPC分类号： B23Q3/1554 , B23Q5/341 , B23Q2003/155428 , B23Q2003/155439 , G05B2219/42328 , G05B2219/50186 , Y10T483/136 , Y10T483/1755 , Y10T483/176 , Y10T483/1767
摘要： The present invention provides an automatic tool changer which is adapted to detect the end of the service life of a bearing of a cam follower for systematic replacement of the bearing. The automatic tool changer comprises: a tool changer mechanism (26) including a rotation shaft, a changer arm fixed to the rotation shaft, a cam follower attached to the rotation shaft and having an engagement roller rotatably supported by a bearing, a cam engaged with the engagement roller of the cam follower, and drive for driving the cam; and a controlling section (57) for controlling an operation of the tool changer mechanism (26). The tool changer further comprises a service life end detecting section (9) for counting the number of times of the operation performed by the tool changer mechanism (26) and judging whether or not the count of the number reaches a reference operation number serving as a basis for the detection of the end of the service life of the bearing. With this arrangement, maintenance can systematically be carried out by detecting the end of the service life of the bearing of the cam follower.
摘要翻译：本发明提供了一种自动换刀装置，其适用于检测凸轮从动件的轴承的使用寿命的终点，以便系统地更换轴承。自动换刀装置包括：一个工具更换器机构，包括一个旋转轴，一个固定在旋转轴上的换向器臂，一个安装在旋转轴上的凸轮从动件，凸轮从动件的接合辊和用于驱动凸轮的驱动器; 以及用于控制所述换刀机构（26）的操作的控制部（57）。所述换刀装置还包括使用寿命终止检测部（9），用于对由所述换刀机构（26）进行的操作次数进行计数，并判断所述数量的计数是否达到作为检测轴承使用寿命结束的基础。通过这种布置，可以通过检测凸轮从动件的轴承的使用寿命的结束来系统地进行维护。

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