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    Machine tool spindle and control therefor
    1.
    发明授权
    Machine tool spindle and control therefor 失效
    机床主轴及其控制

    公开(公告)号：US3689166A

    公开(公告)日：1972-09-05

    申请号：US3689166D

    申请日：1969-09-29

    Applicant: WARNER SWASEY CO

    Inventor： JACOB HARRY J JR

    IPC: B23B47/18 ,  B23Q1/72 ,  B23Q11/04 ,  G05B19/27

    CPC classification number: G05B19/27 ,  B23Q1/72 ,  B23Q11/04 ,  G05B2219/49237 ,  Y10T408/172

    Abstract: A machine tool having a rotatable machine tool spindle for performing drilling and tapping operations. The spindle has limited axial movement relative to the spindle carrier. Fluid pressure means may be operated to displace the spindle in opposite directions for a predetermined position in the spindle carrier and to apply a force yieldably opposing return of the spindle to the predetermined position. The position of the spindle in its carrier is sensed by control means and the spindle carrier is translatable toward or away from the workpiece in response to the direction of displacement of the spindle from its predetermined position. The spindle is displaced forwardly to effect translation of the spindle carrier and spindle to engage a tool with a workpiece and the return of the spindle to the predetermined position upon the engagement of the tool with the workpiece is utilized to initiate control means for automatically controlling the depth of drilling or tapping as measured from the surface of the workpiece and the return of the spindle to an automatic repeat position or to a home position. The spindle is allowed to float while a tapping tool is in engagement with the workpiece and the feed and return of the spindle carrier is controlled during this period by sensing the position of the spindle in the carrier. During drilling the spindle is locked against axial movement relative to the carrier while the tool is in engagement with the workpiece. The locking means is engageable over the range of axial movement of the spindle relative to the carrier to locate the spindle in a predetermined position relative to the carrier.

    Abstract translation: 一种具有用于执行钻孔和攻丝操作的可旋转机床主轴的机床。 主轴相对于主轴托架具有有限的轴向运动。 可以操作流体压力装置以使主轴在相反方向上移动到主轴托架中的预定位置，并施加可屈曲地相反的主轴返回到预定位置的力。 主轴在其载体中的位置由控制装置感测，并且主轴托架能够响应于主轴从其预定位置的移动方向朝向或远离工件平移。 主轴向前移位以实现主轴托架和主轴的平移，以使工具与工件接合，并且在工具与工件的接合时将主轴返回到预定位置用于启动控制装置，用于自动控制 从工件表面测量的钻孔或攻丝深度以及主轴返回到自动重复位置或原位置。 当攻丝工具与工件接合时，允许主轴浮动，并且在此期间通过感测主轴在载体中的位置来控制主轴托架的进给和返回。 在钻孔期间，当工具与工件接合时，主轴被锁定以抵抗相对于托架的轴向运动。 锁定装置可以在主轴相对于托架的轴向运动的范围内接合，以将主轴定位在相对于托架的预定位置。

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