基于Pro/Mechanism的圆柱分度凸轮机构参数逆向CAD  

Reversing of CAD for Parameters of Cylindrical Index Cam Mechanism based on Pro/Mechanism

作　　者：张俊[1] 刘亚丽[1] 付正飞[1] 高成慧[1] 

机构地区：[1]湖北文理学院机械与汽车工程学院,湖北襄阳441053

出　　处：《机械传动》2013年第6期50-52,57,共4页Journal of Mechanical Transmission

基　　金：湖北省教育厅自然科学项目(鄂教科[2009]2号/D20092503)

摘　　要：利用三坐标测量仪测量圆柱分度凸轮廓面的坐标数据,建立了圆柱分度凸轮的实体模型,提出了通过机构运动仿真来获取凸轮的动程角和从动件运动规律等参数的逆向CAD方法,给出了在Pro/Mechanism模块上实现的过程,进一步可以结合所测量的凸轮机构基本结构尺寸进行正向设计。试验结果表明:该方法能快速、准确地实现从动件运动规律反求,可直接应用于工程实际。Using the original convex - profile data measured by the three - coordinates measuring machine, the 3D modeling of cylindrical index cam is established. A CAD reversing method is presented to obtain parameters of the follower motion rule and cam lift - return angles of cam mechanism by using motion simulation, the processes of dy- namically simulate and to obtain motion parameters of cam mechanism on Pro/Mechanism are introduced. And then a new cam profile can be designed analytically using both the motion parameters and the structure dimensions. The ex- periment show that the method can reverse design of cam follower motion rule rapidly and accurately, and it can be di- rectly applied to practice.

关 键 词：圆柱分度凸轮 参数逆向工程 运动规律 

分 类 号：TH132.47[机械工程—机械制造及自动化] TP391.72[自动化与计算机技术—计算机应用技术]