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为了冲压生产出合格的多孔板零件,通常采用编程简单的矩阵编程法来编制冲压多孔板上孔的加工程序,但在生产中发现这种编程方法存在不能以“急停”位置为起始点继续冲制剩余孔的缺陷。本文论述了采用逐行编制程序的办法并配合相对坐标系可以克服矩阵编程的缺陷。同时,试生产中还存在“废料反跳”的现象,分析结果表明,“废料反跳”的原因是由于工件或废料与凸模底面之间的吸附力大于与凹模孔壁之间的摩擦力;采用将压力机的装模高度适当调小的方法可以防止“废料反跳”现象发生,并进行了生产试验验证。
In order to stamp out the production of qualified multi-plate parts, usually by programming a simple matrix programming method for the preparation of holes punching perforated plate processing procedures, but found in the production of this programming method exists in the “emergency stop” position for Start punching the remaining hole defects. This article discusses the use of progressive programming method and with the relative coordinate system can overcome the shortcomings of matrix programming. At the same time, the trial production of “waste rebound” phenomenon, the analysis results show that “The reason why the bounce” is due to the workpiece or scrap and the punch between the bottom surface of the adsorption force is greater than the cavity wall Between the friction; using the press mold height appropriate method of adjusting the small to prevent “waste bounce ” phenomenon occurred, and the production test verification.