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为了解决卧式镗床加工能力不足的困难,我厂把冲模模架的镗孔工作改在摇臂钻床上加工,经过几次试验,不但能保证所有模架的互换性,光洁度达到七级,上托和底座孔的同心度不超过0.02毫米,而且效率很高每班可镗170个 A 级孔。在摇臂钻床上加工模架时采用了如附图的工具。首先把生铁座1找平后压在钻床工作台上,然后按照标准模架上孔的距离镗出六孔基准孔,孔径各为φ50、φ20A、φ22A、φ25A、φ28A 和φ32A。第一个孔与其他各孔的距离
In order to solve the lack of horizontal boring machine processing capacity of the difficulties, I plant the mold base mold boring work on the radial drilling machine processing, after several tests, not only to ensure that all the interchangeability of the mold base, finish seven, The concentricity of the upper bracket and the base hole does not exceed 0.02 mm and the efficiency is very high. A Class A hole can be borne up to 170 Class A per hole. In the radial drilling machine tooling mold used in the figure as the tool. First of all, the pig iron seat 1 is leveled and pressed on the drilling machine table, then the six-hole reference holes are bored out according to the distance of the holes on the standard mold frame, with the diameters of φ50, φ20A, φ22A, φ25A, φ28A and φ32A. The distance between the first hole and the other holes