级进模结构设计中的装配约束表达及求解

Constraints description and solution in progressive die structure design

针对级进模结构特点 ,提出了能完整描述级进模组成部件功能及约束的约束树模型 ,并采用基于变量表达式的约束求解方法实现了级进模装配模型的快速更新。

According to the characteristics of progressive die, a constraint\|based assembly tree is proposed to represent its function context and constraints. In order to update the assembly model quickly, a variable\|expression\|based algorithm for solving the constraints is applied. As a result, the top\|to\|down design for progressive die structure can be implemented easily.