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公开(公告)号：US4036484A
公开(公告)日：1977-07-19
申请号：US698039
申请日：1976-06-21
CPC分类号： B23B31/201 , B23Q39/046 , Y10T279/1266 , Y10T279/17521 , Y10T29/513 , Y10T408/545
摘要： Advancing mechanism for a series of fixtures having collets for workpieces are actuated by a fluid actuated double-acting cylinder to lock and unlock the collet. A driven rotatable table has a plurality of equally spaced fixtures mounted thereon which are advanced seriatim to a plurality of machining stations where work is performed thereon. Each advancement moves a fixture to the unloading and loading station where the collet is released, the finished workpiece removed and a workpiece to be machined placed within the collet. The double-acting cylinder was actuated by the fluid to release the collet and after a workpiece was placed therein a reversal of the fluid clamped the collet in secured position. The collet is locked and unlocked by the operation of a transverse pin in a sloping slot in a sleeve which is advanced over the collet to move the sections of the head into clamped position to hold the workpiece. The table is driven to advance the collets the distance the fixtures are spaced apart and are accurately located by a shot pin which enters a hole in the table. Thereafter a dwell time is provided during which work is performed on the workpieces located at each of the stations. Any number of stations may be provided depending upon the number of machining operations to be performed.
摘要翻译： 具有用于工件的夹具的一系列固定装置的推进机构由流体致动的双作用气缸致动以锁定和解锁夹头。 从动旋转工作台具有安装在其上的多个等间距的夹具，其先进地连接到多个加工站，其中在其上执行工件。 每个推进将夹具移动到卸载和装载工位，其中夹头被释放，完成的工件被移除，并且待加工的工件放置在夹头内。 双作用气缸由流体致动以释放夹头，并且在工件放置在其中后，将夹头的夹紧夹紧在固定位置。 通过套筒中的倾斜槽中的横向销的操作将夹头锁定和解锁，套筒中的横向销先导在夹头上，以将头部的部分移动到夹紧位置以保持工件。 该工作台被驱动以使夹具推动夹具间隔开的距离，并且通过进入工作台中的孔的射针被精确地定位。 此后，提供驻留时间，在该停留时间期间对位于每个站的工件执行工作。 可以根据要执行的加工操作的数量来提供任何数量的站。
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公开(公告)号：US4606244A
公开(公告)日：1986-08-19
申请号：US511745
申请日：1983-07-07
CPC分类号： B23Q16/06 , Y10T74/1418 , Y10T74/1453
摘要： A workpiece indexing assembly which causes incremental rotation of a turntable from one work station position to another being actuated by a linearly translating driver. The mechanism includes an indexing hub having a number of radially spaced notches, a one-way clutch dog, a locking pawl and a driving dog. Upon retraction of the driver the driving dog becomes disengaged from one notch and is rotated until engagement occurs with another notch. Retraction also causes disengagement of the locking pawl. Rotation of the table is prevented during retraction by the one-way clutch. Upon extension of the actuator, the one-way clutch allows rotation. When the next work station position is reached, the locking pawl and the one-way clutch are reseated into hub notches. The driver is connected to the driving dog by a link featuring overcenter travel to insure firm locking of the turntable at a work station position.
摘要翻译： 工件分度组件，其使转盘从一个工位位置向另一工作位置的增量旋转由线性平移驱动器致动。 该机构包括具有多个径向隔开的凹口的分度轮毂，单向离合器爪，锁定爪和驾驶犬。 当驾驶员回缩时，驾驶犬从一个凹口脱离，并且旋转直到与另一个凹口发生接合。 缩回也导致锁定爪的脱离。 通过单向离合器回退时可以防止工作台的旋转。 在执行机构延长时，单向离合器允许旋转。 当到达下一个工位位置时，锁定爪和单向离合器被重新配置成轮毂凹口。 驾驶员通过具有超中心行程的链路连接到驾驶犬，以确保在工作台位置牢固地锁定转台。
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