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对于螺釘的六角头或四方头,除冷拔型鋼及精密模鍛的可以不进行切削加工外,一般用圓料銑削。为了节省原材料,常先把头部鍛成六角或四方的毛坯,然后再在銑床上进行光整加工;但这道工序总是比較費工的。我厂过去利用分度头来銑螺釘六角头,每次只能装夹一个工件,操作也很麻煩,生产效率不高。为此,我們設計了一种簡易夹具,每次可連續加工十个工件,經試制应用,效率确可提高。現把它介紹出来,供大家参考。
For the hexagonal head or square head of the screw, in addition to cold-drawn steel and precision forging can not be cut, the general use of round milling. In order to save raw materials, often first forging the head hexagonal or square blank, and then in the milling machine finishing; but this process is always more laborious. In the past, the factory used the indexing head to mill the screw hexagonal head. Only one work piece could be loaded at a time. The operation was troublesome and the production efficiency was not high. To this end, we have designed a simple fixture that can process 10 workpieces at a time and, after trial production, the efficiency can indeed be increased. Now introduce it for your reference.