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在英明领袖华主席领导下,一举粉碎了“四人帮”,为我国早日实现四个现代化开辟了一条金光大道,工、农业,科技战线捷报频传。随着工农业生产发展的需要,冲压生产将愈来愈多的采用,对冲裁件的精度要求也愈来愈高。要提高冲裁件的精度,关键的因素之一就是提高冲模的精度。在普通的冲裁摸上若使用滑动的导柱导套,由于导柱、导套要滑动,所以不可避免的要有间隙存在,这对精冲裁或薄板(厚度<0.5毫米)冲裁是满足不了要求的,而且对模子的寿命有很大的影响。另有一种滑动导柱导套,为了减少其中的间隙,把导套设计成可调节式的,但结构复杂,且不能完
Under the leadership of Chairman Hua, the wise leader, the “gang of four” was shattered in one fell swoop, opening up a golden route to industrialization, agriculture and science and technology in our country as soon as possible to realize the four modernizations. With the development of industrial and agricultural production needs, stamping production will be more and more adopted, the accuracy of hedging pieces are also getting higher and higher. To improve the accuracy of blanking parts, one of the key factors is to improve the accuracy of die. In normal punching touch sliding guide column guide sleeve, due to guide posts, guide sleeve to slide, so inevitably there is a gap exists, which fine blanking or sheet (thickness <0.5 mm) blanking is Can not meet the requirements, but also have a great impact on the life of the mold. Another kind of sliding guide bush, in order to reduce the gap, the guide sleeve designed to be adjustable, but the structure is complex, and can not finish