论文部分内容阅读
随着电子、电器工业的飞速发展,对精冲模具的高寿命、高精度也提出了新的要求。导槽式滚珠模架,为精冲模具的发展,提供了一条新的途径。目前一般模具导向大多采用导柱导套导向,在模具精度高、冲裁速度大、模具使用寿命长(如采用硬质合金更换式)的情况下一般常采用普通滚球模架,滚珠、导套之间制成0.01～0.02mm的过盈量,消除了导柱和导套之间的间隙,且变滑动摩擦为滚动摩擦,故导向精度和耐磨性均有所提高。但由于滚珠与导柱、
With the rapid development of electronics and electrical appliances, new requirements have also been put forward on the high life and high precision of fine blanking dies. Guide groove ball mold, for the development of fine blanking die provides a new way. At present, most of the mold-oriented guide rails are mostly used to guide the guide. In the case of high precision molds, high blanking speed and long service life of the mold (such as using cemented carbide replacement type) Between sets made of 0.01 ~ 0.02mm interference, eliminating the gap between the guide post and the guide sleeve, and variable sliding friction for rolling friction, so the guidance accuracy and wear resistance have increased. However, due to ball and guide column,