参数式通用机械图库的设计

DESIGN OF PARAMETRIC DATABASE FOR MECHANICAL DRAWINGS

本文基于DBASEⅢ数据库语言,给出了设计参数式机械零件图和装配图图形库的原理和方法,文中,根据机械图的特点,提供了20种基本图素用于构造零件图,零件图节点坐标为零件参数的函数,用数学表达式表示。装配图则由零件图逐级装配而成。本文的方法具有编程工作量小的特点。

Based on Dbase Ⅲ database management, this paper describes the techniques by which the parametric databases are designed for mechanical part and assembly drawings. In the paper ,the part drawings are constructed by 20 kinds of two-dimensional primitive patterns, and the node coordinates of part drawings are represented by mathematical representations which are functions of part parameters. The assembly drawings are step-by-step assemblage of part drawings.There is small amount of work using this method of the paper.