一种异形管坯冲孔模具的定位机构设计

Design of positioning mechanism in punching die of special pipe

在冰箱压缩机的曲轴毛坯两端冲孔模具设计中, 由于曲轴毛坯的特殊形状及生产工艺, 曲轴毛坯在模具中的定位以及冲孔凹模的定位与复位存在一定的难度, 本模具采用浮动定位机构解决了曲轴毛坯在模具中的定位, 采用汽缸辅助斜楔斜滑块机构实现了芯棒凹模的定位与复位, 并采用组合凸模部件防止冲裁废料的上跳, 采用了大冲裁间隙, 在生产中取得了良好的效果。

In design of punching die in crankshaft shell, because of its special shape and production process, there are difficulties in positioning for crankshaft shell and core rod female dieUsing the float positioning mechanism ,the crankshaft shell could be well fixed to the position in the dieUsing cylinder aided inclined wedge and inclined slide block mechanism,core rod female die could be fixed to the position and repositioned well in the dieUsing compounding punch, the rising of blank could be avoided. Big blanking gap is used in the dieThere is a good effect in manufacture