基于Protoolkit的圆柱螺旋齿轮的精确三维参数化建模

摘要

In CAD/CAM/CAE, the three-dimensional modeling of mechanical products is the key foundation, its precision and quality determine the quality of the other follow-up design, analysis, manufacturing and other processes. In this paper discussed are the cylindrical gear in a helical gear tooth profile surface, accurate expression, generation method in the three-dimensional CAD software Pro/Engineer and in Pro/Engineer to C language interface Protoolkit, form and structure characteristics of helical gear expression in Pro/Engineer, operation, treatment function and application development methods. And taking this as an example, a 3D parametric design system of cylindrical helical gear is designed.%在CAD/CAM/CAE中,机械产品的三维建模是基础,其精确程度和质量决定着设计、分析、制造等后续过程的质量.文中讨论了圆柱齿轮中的一类圆柱螺旋齿轮的齿廓曲面的精确表达,在三维造型软件Pro/Engineer中的生成方法以及在Pro/Engineer与C语言的接口Protoolkit中,圆柱螺旋齿轮上的形状结构特征在Pro/Engineer中的表达、操作、处理函数的功能和应用开发方法.并以此为例设计了一个圆柱螺旋齿轮的三维参数化设计系统.