对向凹模精密冲裁在国外也是近年来才发展起来的新技术。我们结合本厂的生产任务,运用对向凹模精密冲裁的原理,在普通冲床上对Hpb59—1黄铜齿轮(图1)的齿形进行对向凹模冲切,整个过程在一副模具上的两次行程中实现。在生产实践中收到了一些效果。下面介绍有关內容: 1.冲切模具及其工作过程这套模具如(图2)所示,由凹模、推件 Die precision die blanking foreign countries in recent years, it is only developed a new technology. We combine the factory production tasks, the use of precision die to die the principle of ordinary punch on the Hpb59-1 brass gear (Figure 1) to die-toothed die punching the entire process in a Two trips on the mold to achieve. In the production practice has received some results. The following describes the content: 1. Die cutting die and its working process as shown in this die (Figure 2), by the die, pusher