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我厂试制新产品较多,工件上的孔径尺寸不一,所用原材料品种繁多,常用的有10号、20号酸洗薄钢板、62冷轧黄铜板、紫铜板、L4-M软铝板、Ly12-y_2半硬合金铝板、环氧玻璃布胶板、酚醛纸胶板等。 根据试制和生产上的需要设计了一套“通用冲孔模”,其结构见图1。模柄下端设计有细牙螺柱,外旋上紧固锥套2,其圆锥角为60度、光洁度要求V7以上,冲头3以圆锥面卡于上紧固锥套内并依靠圆锥面自动定中
I trial plant more new products, the workpiece aperture size varies, the wide variety of raw materials used, commonly used 10, No. 20 pickling sheet, 62 cold-rolled brass plate, copper plate, L4-M soft aluminum, Ly12-y_2 semi-hard alloy aluminum, epoxy glass cloth plastic, phenolic paper plastic plates. According to trial and production needs on the design of a set of “universal punching mold”, the structure shown in Figure 1. The lower end of the mold handle is designed with fine-tooth studs, the outer screw is used to fasten the tapered sleeve 2, the cone angle is 60 degrees, the finish of V7 is more than required, the punch 3 is stuck in the upper tapered sleeve with a conical surface and relies on the conical surface automatically Set in