摘要
从装配体的装配约束关系中 ,提取出装配尺寸链上各尺寸所引用的几何元素的装配约束关系。利用这些装配约束关系 ,按照一定的搜索算法确定各组成环的增减性 ,计算组成环和封闭环尺寸的大小 ,生成尺寸链 ,并得到设计函数。
Based on the relationship of assembly constrains in the components, it presents the method to extract assembly constraints of geometry feature referenced by the dimension chain. The searching algorithm can identify the plus/minus of the individual and sum link simultaneously, calculate each size, generate the dimension chain and the design function.
