对一些有明确要求的凸台尺寸(例如:冲模凸台的节径尺寸、板式热交换器的板片成型模的凸台节径尺寸等),一般用齿厚卡尺很难测量,如果用加装有高度定位装置的游标卡尺代替齿厚卡尺进行测量可收到一定效果。其具体结构见下图。在测量时,必须注意卡尺外量爪尖端及高度定位块工作面与尺身平行。此方 For some well-demanded bosses (for example, the nodal size of the punch boss, the nodal diameter of the plate forming die of the plate heat exchanger, etc.), it is generally difficult to measure with a caliper. Instead of a caliper caliper, a vernier caliper with a height-positioning device can receive some effect. The specific structure of the following figure. During measurement, care must be taken that the caliper outer claw tip and height positioning block face parallel to the blade. This side