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图示的拨杆夹头,可车削精度为IT7的光轴类零件。三爪卡盘1夹紧床头顶尖2,夹头座5被螺钉8紧定在床头顶尖2上,拨杆3用螺母4固定在夹头座5的长槽中并
The illustrated lever clamp can be used to machine optical parts of IT7. 3 jaw chuck 1 clamping bed top 2, the chuck base 5 is fastened by the screw 8 in the bed top 2, the lever 3 with a nut 4 is fixed in the long groove of the chuck base 5 and