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    • 4. 发明授权
    • Positioning apparatus used for machine tools etc.
    • 机床等的定位装置
    • US5341722A
    • 1994-08-30
    • US928369
    • 1992-08-12
    • Nobuyuki TaniTenzo Yamaguchi
    • Nobuyuki TaniTenzo Yamaguchi
    • B23Q16/02F15B15/26F16D31/02
    • B23Q16/025
    • A positioning apparatus can perform high-accuracy positioning in a short time without a Curvic (trademark) or positioning coupling. With provision of a hydraulic motor having a rotary shaft fixed to a turret head and a hollow type rotary encoder for detecting the angle of rotation of the rotary shaft, rotation of the hydraulic motor is controlled by a controller via a control valve. Locking of the rotary shaft is performed by a rebound force of a spring provided in a hydraulic cylinder by pressing a pad provided at a tip portion of a rod against a disk. Unlocking of the rotary shaft is performed by supplying a hydraulic fluid into a cylinder chamber by switching a directional control valve.
    • 定位装置可以在没有Curvic(商标)或定位联轴器的情况下在短时间内执行高精度定位。 通过设置具有固定到转塔头的旋转轴的液压马达和用于检测旋转轴的旋转角度的中空型旋转编码器,通过控制器通过控制阀控制液压马达的旋转。 旋转轴的锁定通过将设置在杆的末端部分的垫压靠在盘上的由设置在液压缸中的弹簧的回弹力来执行。 通过切换方向控制阀将液压流体供给到气缸室来进行旋转轴的解锁。