刀杆上的装刀孔多为方形,为了满足镗孔精度的需要,这些方孔除一般具有较高的尺寸、形状精度要求外,还对刀杆母线有较高的对称度要求。这些方孔的最后成形多为手工加工,这就给加工带来一些困难,为此,我们制做了一简单检具,操作者可以边测量、边加工,非常方便。检具的结构原理如图所示。使用前先检查刀杆 In order to meet the need of boring precision, these square holes generally have higher size and shape accuracy requirements, but also have higher symmetry requirements for the arbor bus bar. The final shape of these square holes and more for the manual processing, which gives the processing some difficulties, for which we made a simple check, the operator can edge measurement, edge processing, very convenient. Gage the structure of the principle shown. Check the arbor before use