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在使用HZC2Z(PC)车床加工内圈沟道时,由于原机床没有自动退料系统,因此我们设计夹具时,必须使其具备自动退料功能。下图为自动退料夹具。 该夹具接盘2连接于车床法兰,夹具体3与接盘2为间隙配合,用内六角调整螺钉11调节夹具体3,保证同轴度要求。弹簧夹头6内锥孔与夹具体3外锥面相配合(其锥度相差0.5°～1°且大于自锁角度),达到同轴度要求。弹簧夹头6依靠前拉杆8、后拉杆1及圆柱销10夹紧和松开工件,工件依靠定位盘5实现轴向端
In the use of HZC2Z (PC) lathe machining inner ring channel, because the original machine does not automatically return system, so we design the fixture, it must be equipped with automatic return function. The following picture shows the automatic withdrawal fixture. The fixture plate 2 is connected to the lathe flange, the clamp body 3 and the adapter plate 2 for clearance fit, with a hexagon adjusting screw 11 to adjust the clamp body 3 to ensure the coaxiality requirements. The collet hole of the collet 6 is matched with the outer conical surface of the clamp body 3 (its taper is different from 0.5 ° to 1 ° and greater than the self-locking angle) to achieve the concentricity requirement. The collet 6 relies on the front pull rod 8, the rear pull rod 1 and the cylindrical pin 10 to clamp and release the work piece. The work piece relies on the positioning plate 5 to achieve the axial end