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28 条记录 (耗时 0.025 秒)

    Positional control of a controlled object during movement initiation
    11.
    发明授权
    Positional control of a controlled object during movement initiation 有权
    运动开始期间受控对象的位置控制

    公开(公告)号：US06861816B2

    公开(公告)日：2005-03-01

    申请号：US10424063

    申请日：2003-04-28

    申请人： Satoshi Eguchi

    发明人： Satoshi Eguchi

    IPC分类号： G05D3/12 ,  G05B19/404 ,  H02P29/00

    CPC分类号： G05B19/404 ,  G05B2219/41154

    摘要： In a positional control device for controlling a position of a controlled object using a motor, when generating a torque command value τc which serves as the command value for the servo motor of the controlled object system (112), a friction compensation value for use when the controlled object initiates a movement is calculated based on a velocity command value V and a torque command value τc determined according to a positional command value Xo supplied from a superordinate device. More specifically, an initial friction compensation calculating section calculates a torque compensation amount Vsfc1 corresponding to a difference between torque being generated during the standstill state and torque required by the controlled object to initiate the movement, and a torque compensation amount Vsfc2 to an amount of change in friction that occurs during a transition from static friction to kinetic friction in a period immediately before and after initiation of the movement. Vsfc1 and Vsfc2 are then used to calculate compensated values of the torque command value τc. Positional tracking deviation generated due to friction during a movement initiation can thereby be reduced, regardless of operational conditions during the standstill state or of the movement direction and velocity effected thereafter.

    摘要翻译： 在使用电动机控制受控物体的位置的位置控制装置中，当产生用作受控对象系统（112）的伺服电动机的指令值的转矩指令值tauc时， 基于速度指令值V和根据从上级装置提供的位置指令值Xo确定的转矩指令值tauc来计算控制对象开始移动。 更具体地说，初始摩擦补偿计算部分计算与停止状态期间产生的扭矩之间的差异以及受控对象启动运动所需的转矩对应的扭矩补偿量Vsfc1，转矩补偿量Vsfc2变化到变化量 在从运动开始之前和之后的时间段期间从静摩擦转变为动摩擦期间发生的摩擦。 Vsfc1和Vsfc2然后用于计算转矩指令值tauc的补偿值。 因此，无论在停止状态下的运转状态或其后的运动方向及速度如何，都可以减少由于运动起动期间的摩擦而产生的位置跟踪偏差。

    Gas laser oscillator
    12.
    发明授权
    Gas laser oscillator 有权
    气体激光振荡器

    公开(公告)号：US06327295B1

    公开(公告)日：2001-12-04

    申请号：US09691251

    申请日：2000-10-19

    申请人： Takayuki Yamashita ,  Hiroyuki Hayashikawa ,  Satoshi Eguchi

    发明人： Takayuki Yamashita ,  Hiroyuki Hayashikawa ,  Satoshi Eguchi

    IPC分类号： H01S300

    CPC分类号： H01S3/005 ,  B23K26/0622 ,  B23K26/705 ,  H01S3/03 ,  H01S3/104 ,  H01S3/1305 ,  H01S3/1312 ,  H01S3/134

    摘要： The gas laser oscillator of the invention comprises a discharge tube, a pair of electrodes disposed at both ends thereof, a direct-current high voltage power source for applying a direct-current high voltage in pulse form to the pair of electrodes, an output control device for controlling the direct-current high voltage power source, a fully reflective mirror provided at one end of the outside of the pair of electrodes, a partially reflective mirror disposed at other end of the outside of the pair of electrodes, and an absorber disposed outside of the partially reflective mirror. In thus constituted gag laser oscillator, the output control device controls to apply a same direct-current voltage as during processing between the pair of electrodes also on standby while the absorber is closed. The gas laser oscillator of the invention further comprises a beam splitter outside of the absorber, a switch to be actuated while the beam splitter is installed at a specified position, a focusing lens disposed on the optical axis of the laser beam reflected and separated by the beam splitter, a shielding plate disposed so as to open or close the passage of laser beam, a switch to be actuated while the shielding plate is open, a detector for detecting the laser beam, an amplifier for amplifying the output of the detector, and a medium passage disposed in contact with the detector for realizing heat exchange between the temperature-controlled medium and the detector, whereby it is controlled to issue the laser beam only while the beam splitter is installed at a specified position. The output of the laser beam is controlled so that the detector input may not exceed the maximum allowable input of the detector while the shielding plate is open. Moreover, the beam splitter, focusing lens, and detector are arranged so that the optical axis may be horizontal to the laser beam passing therethrough.

    摘要翻译： 本发明的气体激光振荡器包括放电管，设置在其两端的一对电极，用于将脉冲形式的直流高电压施加到该对电极的直流高压电源，输出控制 用于控制直流高压电源的装置，设置在一对电极的外部的一端的全反射镜，设置在该对电极的外侧的另一端的部分反射镜，以及设置在 在部分反光镜外面。 在这样构成的gag激光振荡器中，输出控制装置控制在吸收器关闭时在待机的同一对电极之间施加与处理期间相同的直流电压。本发明的气体激光振荡器还包括一个分束器外部 所述开关在所述分束器安装在指定位置时被致动，所述聚焦透镜设置在由所述分束器反射和分离的所述激光束的光轴上;屏蔽板，被设置为打开或关闭 激光束的通过，屏蔽板打开时要被致动的开关，用于检测激光束的检测器，用于放大检测器的输出的放大器以及与检测器接触设置的用于实现热交换的介质通道 在温度控制介质和检测器之间，由此仅当分束器被安装在指定的位置时被控制才发出激光束 离子。 控制激光束的输出，使得当屏蔽板打开时，检测器输入不得超过检测器的最大允许输入。 此外，分束器，聚焦透镜和检测器被布置成使得光轴可以与穿过其中的激光束水平。

    Velocity control device using servo motor
    18.
    发明授权
    Velocity control device using servo motor 失效
    伺服电机速度控制装置

    公开(公告)号：US5973467A

    公开(公告)日：1999-10-26

    申请号：US99450

    申请日：1998-06-18

    申请人： Satoshi Eguchi

    发明人： Satoshi Eguchi

    IPC分类号： G05B11/42 ,  G05B13/02 ,  G05B13/04 ,  G05D13/62 ,  H02P29/00 ,  G05B11/36

    CPC分类号： G05D13/62 ,  G05B13/042

    摘要： A velocity control device controls a velocity of an object via a servo motor so that a damping phenomenon during acceleration or deceleration and a swelling phenomenon of a specified frequency arising at a specified velocity are relieved, while disturbance suppression ability is improved under a wide range of low accelerations. The device comprises an integral gain variable calculation section including an acceleration variable section for calculating an acceleration variable integral gain from an acceleration factor according to an acceleration command value and a reference integral gain and a weighting calculation section for calculating an integral gain from a weighting factor according to a velocity command value, a reference integral gain, and an acceleration variable integral gain. The device may therefore variably set an integral gain according to an acceleration command value and a velocity command value.

    摘要翻译： 速度控制装置通过伺服电动机控制物体的速度，从而缓解在加速或减速期间的阻尼现象以及以特定速度产生的特定频率的膨胀现象，同时在宽范围内改善了干扰抑制能力 低加速度 该装置包括积分增益变量计算部分，其包括加速度可变部分，用于根据加速度指令值和参考积分增益从加速度因子计算加速度可变积分增益，以及加权计算部分，用于从加权因子计算积分增益 根据速度指令值，参考积分增益和加速度可变积分增益。 因此，装置可以根据加速度指令值和速度指令值可变地设定积分增益。

    Gas laser oscillator apparatus
    19.
    发明授权
    Gas laser oscillator apparatus 失效
    气体激光振荡器装置

    公开(公告)号：US5825795A

    公开(公告)日：1998-10-20

    申请号：US765148

    申请日：1996-12-23

    申请人： Takayuki Yamashita ,  Hiroyuki Hayashikawa ,  Satoshi Eguchi

    发明人： Takayuki Yamashita ,  Hiroyuki Hayashikawa ,  Satoshi Eguchi

    IPC分类号： H01S3/097 ,  H01S3/13

    CPC分类号： H01S3/097

    摘要： The present invention is concerned with a gas laser oscillator apparatus based on gas discharge excitation having a power supply unit, rectifying means connected to the power supply unit, a smoothing capacitor connected in parallel with the rectifying means, a choke coil connected in series with the rectifying means and a laser tube connected in parallel with the smoothing capacitor and in series with the choke coil, wherein a smoothing capacitor capacitance C and an inductance L of the choke coil are determined by f>1/2.pi..sqroot.LC. Even when with this construction, the capacitance C of the smoothing capacitor is set to f>1/2.pi..sqroot.LC, a ripple of a current flowing to the laser tube can be smaller than that in the conventional apparatus and a stable laser output can be obtained.

    摘要翻译： PCT No.PCT / JP96 / 01161 Sec。 371日期：1996年12月23日 102（e）日期1996年12月23日PCT提交1996年4月26日PCT公布。 公开号WO96 / 34437 日期：1996年10月31日本发明涉及一种基于气体放电励磁的气体激光振荡器装置，具有电源单元，与电源单元连接的整流装置，与整流装置并联连接的平滑电容器，扼流线圈 与整流装置串联连接的激光管和与平滑电容器并联连接并与扼流线圈串联的激光管，其中扼流线圈的平滑电容器电容C和电感L由f + E， 2 + EE pi 2ROOT + E，rad LC + EE。即使在这种结构下，平滑电容器的电容C设置为f> + E，fra 1/2 + EE pi 2ROOT + E，rad LC + EE，a 流过激光管的电流的纹波可以比常规装置中的电流小，并且可以获得稳定的激光输出。

    Abnormal state detecting apparatus of a machine tool
    20.
    发明授权
    Abnormal state detecting apparatus of a machine tool 失效
    机床异常状态检测装置

    公开(公告)号：US5142210A

    公开(公告)日：1992-08-25

    申请号：US638174

    申请日：1991-01-04

    申请人： Takayoshi Kojima ,  Satoshi Eguchi ,  Takayasu Asano

    发明人： Takayoshi Kojima ,  Satoshi Eguchi ,  Takayasu Asano

    IPC分类号： B23Q11/00 ,  B23Q17/09 ,  G05B19/4062

    CPC分类号： G05B19/4062

    摘要： An abnormal state detecting apparatus of a machine tool having a servomotor. The apparatus is provided with a device for detecting an abnormal acceleration and an abnormal torque of the servomotor and a device for detecting an abnormal operation state of the servomotor from the directions of the detected acceleration and torque. When the torque, acceleration and operation state are all abnormal, the machine tool is judged to be in an abnormal state and the servomotor is controlled, thereby protecting the machine tool from an impact in an abnormal operation state.

    摘要翻译： 具有伺服电机的机床的异常状态检测装置。 该装置设置有用于检测伺服电动机的异常加速度和异常转矩的装置以及用于从检测到的加速度和转矩的方向检测伺服电机的异常操作状态的装置。 当转矩，加速和运转状态都异常时，机床被判断为异常状态，伺服电机受到控制，从而保护机床免受异常运转状态的冲击。