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一、前言在检验夹具的过程中大量使用角形杠杆作为传动元件,其与工件接触处一般为球头,和百分表接触处为平面,杠杆型式见图1。这些杠杆基本上可以分成两类,第一类如图1中的(A),测量点和摆动中心构成直角;第二类如图1中的(B)和(C),测量点和摆动中心三点不成直角。因为球头对测量不会带来误差,因
I. Introduction In the process of testing jig extensive use of angular lever as a transmission element, the contact with the workpiece is generally the ball head, and the contact surface of the dial indicator is a plane, lever type shown in Figure 1. These levers can basically be divided into two categories, the first category shown in Figure 1 (A), the measurement point and the swing center constitutes a right angle; the second category shown in Figure 1 (B) and (C), the measurement point and the swing center Three o’clock not at right angles. Because the ball will not bring the measurement error, because