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一般中、小批量生产的金属切削机床法兰盘,其上螺钉孔的中心距和等分精度要求不高,因为与其配合零件的螺纹孔是“配作”的,并且大多数法兰盘在Z5 12小台钻上加工,夹具高度受到限制。所以,钻孔用的分度可调夹具不能带导引装置。以往为了确保中心距,是把一批法兰盘中的第一件首先划出孔的中心线,再按法兰盘孔中心线确定钻头和分度可调夹具的位置。这种方法不能保证一次调整就加工合格。因此,使用比较麻烦。为了解决这个问题,我们设计了“中心距调整尺”并和分度可调夹具配合使用,效果较好,其结构
In general, small batch production of metal cutting machine flange, the screw hole on the center distance and precision of the bisecting less demanding, because with the parts of the threaded hole is “made”, and most of the flange in Z5 12 small bench drilling processing, fixture height is limited. Therefore, the adjustable indexing fixture for drilling can not be equipped with a guide. In the past, in order to ensure the center distance, the first of a batch of flanges was firstly drawn out of the centerline of the hole, and then the centerline of the flange hole was used to determine the position of the drill and indexable adjustable fixture. This method does not guarantee that a pass adjustment processing qualified. Therefore, the use of more trouble. In order to solve this problem, we designed the “center distance adjustment ruler” and used with the indexable adjustable fixture, the effect is better, and its structure