几何精度国家标准的应用实例研究

The Study of National Standard Applying about Geometric Accuracy

本文根据机械零件几何精度图样标注等标准化问题分析了形位精度及检测方面的应用实例，就一些常见问题提出了一些见解。推导出了圆锥直径及长度偏差对园锥角的影响公式；得出了同圆锥直径及锥角误差不仅对基面距的影响一样，同时也影响着圆锥配合的互换性结论。

according to the national standard on machine element's geometric accuracy, the essay analysis some exemples of the mark of accuracy and some opinions are given. In additon, as cone diameter and cone angle error affect the distance of two cone refrence plane, and cone diameter and length deviation affect circular cone angle, they affect the cone interchangeability too. We have also deduced some formulas to solve these problems.