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1. 发明授权

US4125056A Spindle structure for gear shaping machine or the like 失效
标题翻译：齿轮成型机等的主轴结构
公开(公告)号：US4125056A
公开(公告)日：1978-11-14
申请号：US758350
申请日：1977-01-10
申请人： Erich Tlaker , Harold G. Haseltine
发明人： Erich Tlaker , Harold G. Haseltine
IPC分类号： B23F5/12 , B23B47/22 , B23F5/16 , B23Q5/033 , B23Q5/26 , B23F9/04
CPC分类号： B23F5/16 , B23Q5/033 , Y10T409/105565
摘要： A hydro-mechanically operated reciprocating spindle for a machine tool is disclosed in the environment of a vertical gear shaper. The spindle comprises a piston which is slidable in a cylinder and which carries a cutting tool at its bottom end. The spindle-piston has two faces of different area to which hydraulic fluid under pressure is directed, the larger area face being used to drive the spindle downwardly in the cutting stroke, and the smaller area face being used to drive the spindle upwardly in the return stroke. Further, the spindle-piston has an axial bore which receives a vertically reciprocable valve. The valve is reciprocated by linkages driven by a rotating shaft, and the arrangement is such as to drive the valve downwardly and thus to move the spindle downwardly at a controlled velocity and under a controlled hydraulic force, and then as the valve is moved upwardly the spindle is moved upwardly on the return stroke at preferably a higher velocity.
摘要翻译：在垂直齿轮整形器的环境中公开了用于机床的液压机械操作的往复式主轴。主轴包括可在气缸中滑动并在其底端承载切削工具的活塞。主轴 - 活塞具有两个不同面积的不同面积的压力下的液压流体，面积较大的面用于在切割行程中向下驱动主轴，并且较小的面积面用于在回程中向上驱动心轴行程。此外，主轴 - 活塞具有接收垂直往复运动的阀的轴向孔。阀通过由旋转轴驱动的连杆往复运动，并且该装置是向下驱动阀，从而以受控的速度和受控的液压力向下移动主轴，然后当阀向上移动时主轴在返回行程上以较高的速度向上移动。

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