目前关于冲裁模工作部分尺寸的确定方法,众说不一,相差较大。根据长期的观察和测试,提出一些初步的见解,以供商榷。 首先应明确一个基本概念,即落料尺寸决定于凹模,冲孔尺寸决定于凸模。制造时以落料凹模和冲孔凸模为基准,采用配间隙的方法加工落料凸模和冲孔凹模,这样便于制造,可以放大制造公差,经济性好。 The current work on the part of blanking die to determine the size, different, different. Based on long-term observation and testing, some preliminary opinions are put forward for discussion. First of all should be clear that a basic concept, that blanking the size determined by the die, punch size depends on the punch. Manufacturing blanking die and punching punch as a benchmark, with the gap method of processing blanking punch and punching die, so easy to manufacture, you can enlarge the manufacturing tolerances, good economy.