我厂产品16t曲柄压力机刚性离合器的转键,是一个形状比较特殊的零件(图1)。在φ35mm圆轴的中部有段长度为98mm,半径为40mm的偏心圆弧面,而且该圆弧面与勾头部分有45°的夹角,因而加工难度较大。开始我们采用单件加工的办法,不但效率低,而且精度也不高。后来我们采用 I plant products 16t crank press rigid clutch transfer key, is a more special shape of the parts (Figure 1). In the middle of the φ35mm round shaft has a section length of 98mm, a radius of 40mm eccentric arc surface, and the arc surface and the hook part of the angle of 45 °, so difficult to process. At the beginning we used a single piece of processing approach, not only inefficient, but also not high accuracy. Later we adopted