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    • 37. 发明专利
    • Positioning device
    • 定位装置
    • JP2012018133A
    • 2012-01-26
    • JP2010157009
    • 2010-07-09
    • Thk Co LtdThk株式会社
    • SHIRAI TAKEKIMIYAHARA SOSHITOGASHI TSUTOMUOTSUKA JIRO
    • G12B5/00B23Q11/14
    • PROBLEM TO BE SOLVED: To provide a positioning device capable of more effectively suppressing deterioration of positioning accuracy due to heat generation of a motor.SOLUTION: A positioning device 1 is provided with a motor 3 fixed on a base 2, a screw shaft 4 rotated by the motor 3, and a stage 5 connected to the screw shaft 4 via a plurality of balls and being movable on the base 2 by rotation of the screw shaft. The positioning device 1 has a heat transfer element mounted on a motor case and being capable of controlling the temperature of the motor 3 in order to nearly uniformize the temperature of the entirety of the device 1.
    • 要解决的问题:提供一种能够更有效地抑制由于电动机的发热引起的定位精度的劣化的定位装置。 解决方案:定位装置1设置有固定在基座2上的电动机3,由电动机3旋转的螺杆轴4和通过多个球体连接到螺杆轴4并可在其上移动的台架5 基座2通过螺杆轴的旋转。 定位装置1具有安装在电动机壳体上的传热元件,并且能够控制电动机3的温度,以使装置1整体的温度几乎均匀化。(C)2012年, JPO&INPIT