轴、齿轮类零件三维建模类库的构造

论述了在三维零件的设计中，通过对零件特征参数及相应数据结构的归纳与相应方法、函数的划分，提出了构造相应零件类，继而建立零件类库的设计思想。从最基本的公共特征父类再通过派生而得到具体的零件子类。既能提供常用零件的类，又能在常用零件类上加以扩充生成新的零件类。

Class Library of Solid Mechanical Part Design

By analysing the key parameter with its own data format to present and operation function,this paper finallly concludes a new thought of mechanical part design after presenting corresponding part class. Specifically, the certain part class is obtained from the derivation of the basic parent class so that using this new idea not only part class used frequently could be provided but also new part class is not only part class used frequently could be provied but also new part class is created by extention from basic parent class.