冷镦机是一种用来镦制螺钉、螺母类零件的专用机床。在这种机床上广泛地采用了各种凸轮机构,如转送夹钳、切料、顶料、送料等主要执行机构的驱动往往都是借助于这种机构来完成的。以前我们在设计凸轮时,常用的是作图法,选用的从动件的运动规律也仅限于余弦加速度规律和正弦加速度规律两种。在加工 Cold heading machine is a kind of special machine used for upsetting screws and nuts. In this machine widely used in a variety of cam mechanism, such as the transfer clamp, cut material, top material, feed and other major executive agencies are often driven by this mechanism to complete. We used to design the cam, the commonly used method is drawing, the choice of the law of motion of the follower is limited to the law of cosine acceleration and sinusoidal acceleration of two. In processing