我厂生产的YEE8100微型电子计算机中的键盘板,(见图1)材料为08F冷轧钢板,厚度1毫米,有59处14×14的方孔,位置度要求为±0.08,一开始我们在冲床用14×14的方孔模定位冲制,结果无法达到公差要求。后来改为线切割加工,但效率很低,成本很高。为了提高效率,降低成本,我们设计了座标冲模,经使用证明效果很好。过去有许多用机械加工的零件,现在已 The keyboard plate in the YEE8100 miniature computer produced by our factory (see Figure 1) is made of 08F cold-rolled steel with a thickness of 1 mm and 59 square holes of 14 × 14. The position degree requirement is ± 0.08. At the beginning we are at Punch with 14 × 14 Square hole punching positioning system, the result can not meet the tolerance requirements. Later changed to wire cutting, but the efficiency is very low, the cost is high. In order to improve the efficiency and reduce the cost, we designed the coordinate punching die, which proved to work well. There were a lot of machined parts in the past, right now