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工夹具制造过程中,对零组件的纵横两个方向上均有斜角的平面,磨削加工时大多用双向正弦台或纵横叠摞两个正弦台装夹。人们往往直接用图纸给出的角度值扳角,不进行角度值的修正计算。当角度较小、公差较大时,精度尚可保证。若角度较大、公差较小时,就必须进行修正计算,否则精度得不到保证。现将修正计算的原理与方法介绍如下。
Fixture manufacturing process, both vertical and horizontal components of the oblique direction of both planes, most of the grinding process with two-way sine or vertical and horizontal stack two sine table clamping. People tend to use the drawings directly to the value of the angle of the trigger angle correction value is not calculated. When the angle is small, the tolerance is large, the accuracy is guaranteed. If the angle is larger, the tolerance is small, it must be amended to calculate, otherwise the accuracy can not be guaranteed. Now the principles and methods of correction calculation are described below.