公开(公告)号：US5303511A

公开(公告)日：1994-04-19

申请号：US962006

申请日：1992-10-15

申请人： Yukiharu Tsuchiya ,  Toshio Maruyama ,  Kenzaburo Oishi ,  Masakazu Yamaguchi ,  Shoichi Sano ,  Makoto Nonoyama

发明人： Yukiharu Tsuchiya ,  Toshio Maruyama ,  Kenzaburo Oishi ,  Masakazu Yamaguchi ,  Shoichi Sano ,  Makoto Nonoyama

IPC分类号： B23B15/00 ,  B23B19/02 ,  B24B19/12 ,  B24B41/06 ,  B24B49/00

CPC分类号： B24B19/12 ,  B24B41/061

摘要： A spindle apparatus for supporting and rotating a workpiece in a grinder. The spindle apparatus includes a workpiece spindle rotatably supported on a spindle head and driven for rotation by a motor, and a spindle plate mounted to the front end of the workpiece spindle and including an eccentric drive pin. The workpiece spindle has a bore in which a ram is axially movable. A center is fit in the front end of the ram. A unit is provided to advance the ram to engage with one end of the workpiece when the workpiece is to be supported. A rotary sleeve is rotatably supported on the front end of the ram and includes an engagement portion which is displaceable in the axial direction of the spindle and engageable with the drive pin in the direction of rotation. A driving unit is mounted to the front of the rotary sleeve to engage the workpiece in the direction of rotation when the ram is in its advanced position to thereby transmit rotation.

摘要翻译： 一种用于在研磨机中支撑和旋转工件的主轴装置。 主轴装置包括可旋转地支撑在主轴头上并由马达驱动旋转的工件主轴以及安装在工件主轴前端并包括偏心驱动销的主轴板。 工件主轴具有一个可以轴向移动的压头的孔。 一个中心位于公羊的前端。 当工件被支撑时，提供一个单元以推动冲头与工件的一端接合。 旋转套筒可旋转地支撑在柱塞的前端，并且包括接合部分，该啮合部分可在心轴的轴向上移位并沿着旋转方向与驱动销接合。 驱动单元安装到旋转套筒的前部，以在冲头处于其前进位置时沿着旋转方向接合工件，从而传递旋转。