我厂在生产拖拉机变速箱中,加工拨叉的过程是:装夹、快进、工进、快退、松卸。这种方法的缺点是要频繁地进退刀和频繁地夹紧和松开零件,不但劳动强度高,而且工效低。圆周进给自动夹紧铣夹具的产生,使问题迎刃而解。 1.夹具的结构及探作过程如图所示,1为夹具体,4为链轮。由于夹具中心比较高,如采用齿轮传动,则需多级齿轮,为此采 I plant in the production of tractor gearbox, fork process is: clamping, fast forward, work, rewind, loose unloading. The disadvantage of this method is that it requires frequent advance and retreat of the knife and frequent clamping and release of parts, which not only has high labor intensity but also low work efficiency. Circular feeding automatic clamping milling fixture, so that the problem can be solved. 1 fixture structure and exploration process as shown, 1 for the clamp body, 4 for the sprocket. As the fixture center is relatively high, such as the use of gear, you need multi-stage gear, for mining