从表面看,跳动似乎是形位公差中最简单的一个项目,其实并非如此。跳动公差的概念还是比较复杂的。 一、基本概念 按国家标准GB1183-75《表面形状和位置公差术语及定义》,径向跳动是在各个横剖面上分别测量,端面跳动则在各个直径的圆周 On the face of it, beating seems to be the simplest form of geometric tolerances, which is not the case. The concept of beating tolerance is still more complicated. First, the basic concepts According to the national standard GB1183-75 “surface shape and position tolerance terms and definitions”, radial runout is measured in each cross-section, the end of the beating in the circumference of each diameter