在普通车床上利用靠模夹具车加工凸轮时,一般凸轮的升程不能太大。否则,车刀的前、后角变化就大,加工时的冲击、切削速度变化也会增大。这些对车加工是很不利的。能否改变凸轮加工的转动中心,以达到减少凸轮在车加工时的升程?为此,我们对工艺编排和靠模设计作了以下一些尝试。一般在凸轮零件图中(见图1),R_1、R_2和它们相应的转角θ_1、θ_2及凸轮的转动中心O_1至两端的距 In the ordinary lathe on the use of mold clamping vehicle processing cam, the general cam lift can not be too large. Otherwise, the front and back lathe changes on the big, processing impact, cutting speed changes will increase. These are very bad for machining. Can change the rotation center of the cam processing, in order to reduce the cam in the car when the process of lifting? To this end, we have made on the process layout and model design made the following attempts. Generally in the cam parts diagram (see Figure 1), R_1, R_2 and their corresponding rotation angle θ_1, θ_2 and the center of rotation of the cam O_1 to both ends of the distance