平面尺寸链微分法解夹具工艺孔的位置精度

The Plane Dimensional Chain and Differentiation Calculation to the Position Precision of the Technologic Holes

夹具设计中,有关工艺孔的设计计算是设计者遇到的难题,而在教科书和技术资料中都语焉不详。用平面尺寸链微分法求解可提高运算精度并简化计算程序,还有数学美的蕴涵。两个典型的实例可基本概括工艺孔的设计计算方法。

In the course of designing the jig and fixture, designing and calculating technologic hole is a difficulty to the designer,and there are few data dealing with this subject. In this paper,the author put forwards the plane dimensional chain and differentiation to solve this problem. It can not only facilitate the process of calculation, but also improve the accuracy of result. The method of designing and calculating the technology holes is illustrated in detail by two representative examples.