加工如图1所示的零件时,测量两端面中心孔深度一致性及中心孔的深度,过去一直没有较好的测量工具,因此我们设计制造了一种中心孔深度测量比较仪,使用效果很好。中心孔深度测量比较仪的结构如图?所示。分别用它测量工件两端面的中心孔,根据百分表的读数差值就可以确定工件两端中心孔深度的一致性。用它来测量中心孔深度时,由 When machining parts as shown in Fig. 1, we measured the depth of the center hole at both ends and the depth of the center hole. In the past, we did not have a good measuring tool, so we designed and manufactured a center hole depth measuring comparator it is good. Center hole depth measurement comparator structure as shown. Use it to measure the center hole on both ends of the workpiece respectively. According to the difference of readings of the dial indicator, the consistency of the depth of center hole at both ends of the workpiece can be determined. Use it to measure the depth of the center hole, from