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该夹具适用于成批生产零件之车削、磨削工序的夹紧。其特点是:结构小巧,定心准确,夹紧牢靠,使用方便。其结构及使用方法如下:把三个矩形爪5嵌装在锥体6上的三条120°均布槽中,再安装三个矩形键4,然后用三个扁位销3把矩形键和矩形爪串联在一起,并插进心轴9的法兰孔内。锥体11之锥角为30°。当拧紧螺母10时,锥体11便均匀地挤压三个矩形爪5,达到紧固工件之目的。精车时,因切削余量少,转速高,此时仅依靠三个矩形爪的离心力,既能自动夹紧工件。该夹具已为某种产品之专用工具,并与机床配套使用。实践证明效果较好。
The fixture for batch production of turning, grinding process clamping. Its features are: compact structure, centering accurate, firm grip, easy to use. The structure and use of the method are as follows: the three rectangular claws 5 embedded in the cone 6 three 120 ° uniform groove, and then install the three rectangular keys 4, and then use three flat pin 3 rectangular keys and rectangular The prongs are connected in series and inserted into the flange hole of the spindle 9. The cone angle of cone 11 is 30 °. When the nut 10 is tightened, the cone 11 uniformly presses the three rectangular claws 5 for the purpose of fastening the workpiece. Fine car, due to less cutting allowance, high speed, this time only rely on the three rectangular claw centrifugal force, both automatically clamping the workpiece. The fixture has been a special tool for a product, and supporting the use of machine tools. Practice shows that the effect is better.