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多孔板数控冲压工艺及编程设计
英文标题:CNC stamping process and programming design of perforated plate
作者:曹素兵 胡兆国 杨文均 
单位:四川工程职业技术学院 
关键词:多孔板 冲压 数控编程 废料反跳 
分类号:TG249.2TH12
出版年,卷(期):页码:2015,40(12):55-59
摘要:

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 produce qualified perforated plate parts, the matrix programming method was usually adopted to programming punch holes in the perforated plate, but the shortcoming was found in production that the above-mentioned programming method could not regard the “urgent stop” position as a starting point to punch the rest of the hole. Further, the shortcoming of programming matrix was overcome by progressive programming in line with the relative coordinate system. At the same time, there was also “waste rebound” phenomenon in the trial production. The analysis results show that the reason of “waste rebound” is that the adsorption force between workpiece or scrap and the bottom surface of the punch is larger than the friction force between workpiece or scrap and hole wall of the die. Further, the "waste rebound” phenomenon is solved by decreasing the closed height of the press, which is verified by the production test.

基金项目:
德阳市科技支撑支助项目(2014zx070-6)
作者简介:
作者简介:曹素兵(1980-),男,硕士,讲师 通讯作者:胡兆国(1966-),男,硕士,教授
参考文献:


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