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图1、图2所示的两个不同零件,内外形状之间都有较高的不同轴度要求,按传统的方法,为了保证质量,这两个零件需分别下料冲裁。但大零件内径在名义尺寸上等于小零件外径,两零件分别下料冲裁则冲制大零件内型面的废料就被丢弃。为了充分利用材料和保证质量,我们设计了能同时冲两个零件内外形状的冲裁模,从而保证了每个零件的质量和废料的利用。经投入生产使用,效果较好。
Two different parts shown in Fig. 1 and Fig. 2 have higher different axial requirements between the inside and outside shapes. According to the traditional method, in order to ensure the quality, the two parts are blanked separately. However, the inner diameter of a large part is equal to the outer diameter of a small part in nominal size, and the two parts are blanked separately and the scrap of the inner part of a large part is punched out. In order to take full advantage of the material and ensure the quality, we designed the punching mold which can punch the internal and external shapes of two parts at the same time, thus ensuring the quality of each part and the utilization of the waste. After put into production, the effect is better.