在上面几讲中,我们对圆柱类形的几何形状误差,已经作了比较详细的分析,但有许多工件,是由许多单独的几何形状组成的,因此,还有相互位置的偏差。例如图1的齿轮,在相互位置方面就有:1)齿轮的节圆对孔轴线同心度的偏差;2)齿轮端面对孔 In the above remarks, we have made a more detailed analysis of the geometrical shape error of cylindrical shapes, but many workpieces consist of many individual geometries, and therefore, there is a deviation from each other’s position. For example, the gear of Figure 1, in terms of mutual position: 1) deviation of the pitch circle of the gear to the concentricity of the bore axis; 2)