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重型机器制造中,有些直径大的零件,其端面上有精确的等分链槽。由于直径大且重,因此不可能在一般铣床上加工。过去,我厂对这类零件,采取配铣相关件的键槽尺寸,最后通过两件互研的方法,来满足装配要求。这样加工出来的零件,不但精度低,而且延长了制造周期。1981年以来,对160吨剪断机中的大齿轮,采用了编制座标镗孔,借助圆销分度,加工端面键槽的新工艺。经生产实践表明,此
In heavy machine construction, some large diameter parts have an exact bisector chain slot on their end faces. Due to its large diameter and weight, it is impossible to machine on a typical milling machine. In the past, I plant on such parts, take the relevant keyway size with milling, and finally through two mutual research methods to meet the assembly requirements. This processed parts, not only low accuracy, but also to extend the manufacturing cycle. Since 1981, on the 160 tons of shears in the large gear, using the preparation of coordinates boring, with the indexing round, the new process of processing face keyway. The production practice shows that this