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    • 7. 发明授权
    • Positioning and abnormality control device
    • 定位异常控制装置
    • US4757313A
    • 1988-07-12
    • US887972
    • 1986-07-24
    • Hideyuki MatsubaraYoshito KatoToshio Hashimoto
    • Hideyuki MatsubaraYoshito KatoToshio Hashimoto
    • G05B9/02G05B23/02G05D3/12G05B21/00
    • G05D3/12
    • A positioning control device wherein an abnormality in a position detector is judged only by use of two position signals having differing phases emitted from the position detector for effecting position detection of a movable article without using the data of movement of the movable article to be controlled. For this purpose, direction determining means are provided which are responsive to the position signals to provide normal or reverse direction signals. A logical circuit for effecting abnormality judging of the position detector is provided in a controller for emitting a position control signal corresponding to the position signal to a control circuit for effecting position control of the movable article. When an abnormal condition occurs in the position detector, the signal aspect of the position signal emitted from the position detector is varied from that during the normal operation.
    • 一种定位控制装置,其中仅通过使用从所述位置检测器发射的具有不同相位的两个位置信号来判断位置检测器中的异常,以在不使用要控制的可动物品的运动数据的情况下进行可动物品的位置检测。 为此,提供了响应于位置信号以提供正向或反向信号的方向确定装置。 用于实现位置检测器的异常判定的逻辑电路被提供在控制器中,用于将与位置信号对应的位置控制信号发送到控制电路,以实现可移动物品的位置控制。 当在位置检测器发生异常情况时,从位置检测器发出的位置信号的信号方面与正常操作期间不同。
    • 9. 发明授权
    • Method and apparatus for controlling the feed of machine tools
    • 用于控制机床进给的方法和装置
    • US4201935A
    • 1980-05-06
    • US760010
    • 1977-01-17
    • Nobuo FukumaYoshito Kato
    • Nobuo FukumaYoshito Kato
    • B23Q5/40B23Q11/08G05B19/04H02K7/10
    • G05B19/0405B23Q11/08B23Q5/40Y10T74/19991Y10T74/2191
    • An improved feed for a D.C. motor driven feed including a feed screw and nut which moves the table of a machine tool through predetermined positions in accordance with orders to change the rate of feed. The improved feed includes a power damping circuit, a switching circuit for electrically coupling the power damping circuit for a predetermined length of time to the D.C. motor whenever there is an order to change the rate of feed, thrust bearings provided in the D.C. motor whereby loads applied to the table are borne by the thrust bears and a cylindrical protective cover coupled to the nut and covering the feed screw such that the bottom inside surface of the cover is in relative near proximity to the feed screw and the top inside surface of the cover is in relative far proximity to the feed screw.
    • 用于直流电动机驱动的进料的改进的进料,其包括进给螺杆和螺母,该进料螺杆和螺母根据订单将机床的工作台移动到预定位置以改变进料速率。 改进的进料包括功率阻尼电路,切换电路,用于将功率阻尼电路电连接预定时间长度到直流电动机,只要有改变进给速率的顺序,提供在直流电机中的推力轴承,由此负载 施加到工作台上的部件由推力轴和圆柱形的保护盖承载,该保护罩与螺母相连并且覆盖进给螺杆,使得盖的底部内表面相对靠近进给螺杆和盖的顶部内表面 与进料螺杆相对较靠近。