机械设计制造及其自动化范文,范文编号:JX988 范文字数:11539.页数:26 摘要 为了一种新型垫片设计一副无毛刺冲孔模具,模具结构为正装模,冲孔料采用弹性装置。为了实现无毛刺,在凹模底部设置反顶机构。设计了一种新型无毛刺冲孔模具。用该模具进行板料冲孔可实现无毛刺冲裁,孔的光洁剪切带长度可达到材料厚度的80%~85%,并可显著提高孔的尺寸精度和形位精度,达到精密冲裁的加工效果。该模具易于制造,可在普通冲床上使用,适合在生产中推广应用。 关键词:模具设计 冲孔 无毛刺 abstract For a new gasket design of a burr without punching die. Die structure of the module is installed,punching expected to adopt a flexible device. To achieve a burr in die bottorn of the top institutions set up anti. A new style punch die without burrs is designd .The punching without burrs on the metal plate can be carried out by using this die , the length of bringt shearing fracture to the hole can be increased to 80%~85% of material thickness and the punched hole’s precision of size , shape and position can be improved extremely, so that the processing effect of the precise punching can be achieved with this kind of die .Because the die can be easily made and used on the ordinary punching press , so it can be widely used in the punching. Key words: diedesign punch noburr 目 录 新型垫片无毛刺冲孔模设计相关范文 |
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