基于包络面理论的弧面分度凸轮廓面数字化设计  

Digital Design to Create Contour Surface of Globoidal Indexing Cam Based on Envelope Theory

作　　者：李俭 饶雄 唐茂 邓嫄媛 熊美玲 LI Jian;RAO Xiong;TANG Mao;DENG Yuanyuan;XIONG Meiling(School of Mechanical Engineering,Chengdu University,Chengdu 610106,China)

机构地区：[1]成都大学机械工程学院,四川成都610106

出　　处：《成都大学学报（自然科学版）》2018年第2期184-186,190,共4页Journal of Chengdu University（Natural Science Edition）

基　　金：四川省科技厅基础应用研究(2014JY0174)资助项目

摘　　要：针对弧面分度凸轮轮廓曲面造型困难的问题,提出了一种新的建模方法.基于包络面理论,推导出了弧面凸轮工作曲面的数学模型,以此为基础,应用数学软件Mathematica计算出曲面三维坐标点,并利用UG NX中的曲面造型功能,实现了弧面分度凸轮廓面的数字化设计.通过应用实例,验证了该方法的正确性,为开发弧面分度凸轮CAD/CAM系统奠定了基础.Due to the difficulty of modeling the contour surface of globoidal indexing cam,a new modeling method is proposed. Based on the envelop theory,the mathematical model of the contour surface of the globoidal cam is derived. On this basis,the coordinate points of the contour surface are calculated by using the mathematical software,Mathematica. The digital design to create contour surface of the globoidal indexing cam is realized by using the surface modeling function in the Unigraphics NX. The correctness of the method is verified by an application example,which lays a foundation for developing the globoidal indexing cam CAD/CAM system.

关 键 词：弧面分度凸轮 包络面理论 轮廓曲面 数字化设计 

分 类 号：TH122[机械工程—机械设计及理论]