在机械加工中,常常遇到如图1的零件,使用外千分尺很难测量其尺寸,而用卡尺又不易测准。为此,我们在卡尺上装上移动式百分表,用块规或千分尺借为测量基准,校对百分表,然后对工件进行测量,可得到0.01～0.02mm的精度。移动式百分表卡尺结构如图2和图3所示。 In machining, often encounter the parts shown in Figure 1, the use of outer micrometer is difficult to measure the size, but not easy to caliper caliper. To this end, we installed on the calipers mobile dial indicator, with a block gauge or micrometer as the basis for measuring, proofing dial indicator, and then measure the workpiece can be 0.01 ~ 0.02mm accuracy. Mobile dial indicator caliper structure shown in Figure 2 and Figure 3.