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    • 6. 发明授权
    • Indexing device
    • 索引设备
    • US5481944A
    • 1996-01-09
    • US217250
    • 1994-03-24
    • Tetsuya OketaniToshio Ito
    • Tetsuya OketaniToshio Ito
    • B23Q16/02B23Q16/06F16H1/16F16H35/00F16H57/037F16H57/038F16H57/039
    • B23Q16/065B23Q2230/002Y10T74/1418Y10T74/1488
    • An indexing device comprises an indexing table fixed to a table shaft rotatably supported on a body structure. A worm shaft is rotatably supported on the body structure and has a worm formed thereon. An indexing gear is fixed coaxially to the indexing table. The indexing device has a rotation correction device for stopping the rotation of the worm shaft prior to the indexing operation of the indexing table. The indexing device further has a positioning device for operating, after the worm shaft has been thus stopped, to impart a rotational torque to the indexing table and to cause a gear tooth face of the indexing gear to press against and hold a worm tooth face of the worm, whereby the precision of positioning of the indexing table is improved.
    • 分度装置包括固定到可旋转地支撑在主体结构上的工作台轴的分度台。 蜗杆轴可旋转地支撑在主体结构上并形成有蜗杆。 分度齿轮与分度台同轴固定。 分度装置具有旋转校正装置,用于在分度台的分度操作之前停止蜗杆轴的旋转。 分度装置还具有定位装置,其在蜗杆轴已经停止之后进行操作,以将旋转扭矩赋予分度台,并使分度齿轮的齿轮齿面压紧并保持蜗杆齿面 蜗杆,从而提高了分度台的定位精度。
    • 9. 发明授权
    • Indexing device of machine tool
    • 机床分度装置
    • US5297454A
    • 1994-03-29
    • US888902
    • 1992-05-26
    • Toshio Ito
    • Toshio Ito
    • B23Q16/02B23Q5/00F16H27/02B23B29/24
    • B23Q5/00F16H27/02Y10T74/1418Y10T74/1476Y10T74/1488Y10T74/1494Y10T74/1526
    • A device for rotationally indexing an indexing table by utilizing a synchronized tap function of a machine tool main spindle. The rotation and the axial feeding displacement of the main spindle are in a specific synchronized relation. When the main spindle is fed forward, it engages an input shaft of the indexing device and thrusts it to retract against a spring force. Upon arriving at a retracted position of the input shaft, the main spindle starts rotation in one direction. Because of a one-way clutch between the input shaft and the indexing table, the rotation of the input shaft imparted by the main spindle is not transmitted to the indexing table. After a predetermined angular rotation and an axial feed, the main spindle is rotated in the reverse direction to be withdrawn axially. At this time the one-way clutch operates to transmit the reverse rotation to the indexing table. The indexing device is of compact construction and ensures accurate indexing.
    • 通过利用机床主轴的同步分接功能对分度台进行旋转分度的装置。 主轴的旋转和轴向进给位移处于特定的同步关系。 当主轴向前进给时,它与分度装置的输入轴接合并推动其抵抗弹簧力而缩回。 当到达输入轴的缩回位置时,主轴在一个方向上开始旋转。 由于输入轴和分度台之间的单向离合器,由主轴施加的输入轴的旋转不被传递到分度台。 在预定的角度旋转和轴向进给之后,主轴沿相反的方向旋转以被轴向拉出。 此时,单向离合器操作以将反向旋转传递到分度台。 分度装置结构紧凑,确保精确的分度。