我厂在普通立式铣床上用靠模夹具加工出图1所示凸轮，该方法适合中、小批量生产，现简介如下。一、靠模的设计笔者利用渐开线的有关性质，迅速地设计出了靠模。如图1中所示．a、a’是同基圆的两条渐开线，过基圆上任意两点C、C’作切线CE’、C’F’与a、a’分别交于E、E’和F、 I plant in the ordinary vertical milling machine with a fixture to process the cam shown in Figure 1, the method is suitable for medium and small batch production, are briefings are as follows. First, the design by the author I use involute related properties, quickly designed by the model. As shown in Figure 1. a, a ’are two involute lines of the same basis circle, any two points C and C’ on the base circle are tangent CE ’, C’F’ and a, a ’are respectively intersected with E, E’ and F,