异型滚子弧面凸轮减速机构参数化设计及系统开发

Parametric Design and System Development of Different Types of Rollers Globoidal Cam Deceleration Mechanism

为了提高异型滚子弧面凸轮减速机构设计效率、规范设计体系,提出一种基于NX二次开发的参数化设计方法,并开发了设计系统。依据空间几何理论和共轭曲面原理,推导了圆柱滚子、圆锥滚子、球锥滚子、鼓形滚子、球滚子5种典型类型的异型滚子及弧面凸轮工作廓面方程;提取关键设计参数,利用NX二次开发工具开发人机交互设计菜单和对话框,结合NX Open C/C++API和Visual Studio编译环境,开发异型滚子弧面凸轮减速机构参数化设计系统,并根据机构中各部件之间的装配约束关系,开发了自动装配功能。系统验证表明,开发的整套系统可以满足用户的个性化设计需求,有助于实现异型滚子弧面凸轮减速机构设计流程的规范化、标准化,实现快速设计与修改,缩短设计周期。

In order to improve the design efficiency of different types of rollers globoidal cam deceleration mechanism and standardize the design system,a parametric design method based on NX secondary development is proposed,and the design system is developed.According to the theory of space geometry and the principle of conjugate surface,the working profile equations of five typical types of rollers,including cylindrical roller,conical roller,ball-cone roller,drum roller and ball roller,and globoidal cam are deduced.The key design parameters are extracted,and the human-machine interaction design menus and dialogs are developed by using the NX secondary development tool.Combined with NX Open C/C++API and Visual Studio compilation environment,the parametric design system of different types of rollers globoidal cam deceleration mechanism is developed.And according to the assembly constraint relationship between the components in the mechanism,the automatic assembly function is developed.The application shows that the whole system developed can meet the user's personalized design requirements,help to realize the normalization and standardization of the design process of different types of rollers globoidal cam deceleration mechanism,achieve the rapid design and modification,and shorten the design cycle.