一种新型凸轮实验装置设计及分析  

Design and Analysis of a New Experimental Device of Cam

作　　者：李长勇[1] 巨刚[1] 袁亮[1] 刘祖兵[1] 刘小月[1] 王文建[1] 

机构地区：[1]新疆大学机械工程学院

出　　处：《组合机床与自动化加工技术》2016年第3期123-127,共5页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家自然科学基金资助项目(61262059;31460248);新疆优秀青年科技创新人才培养项目(2013721016);新疆大学博士启动基金;自治区科技支疆项目(201591102)

摘　　要：为解决传统机械中设计凸轮机构周期长、精确度低、实验研究参数对应关系不直观等客观性问题,设计并制造出了一种新型凸轮实验研究装置。凸轮实验装置在结构设计中使用同步带提高运动精度,线性导轨提高装置的运动稳定性,从而保证了凸轮机构的设计精度。该装置是一种从几何、运动、力学三方面特性来对凸轮研究的实验仪器,采用旋转变换原理和平移变换理论以及运动的合成与分解思想对凸轮轮廓线设计装置及从动件运动规律曲线研究装置进行理论性分析,同时建立了三维有效模型,运用UG运动分析工具箱对两种实验装置进行了实例验证,并且用实际凸轮实验装置在专用实验图纸上设计了凸轮轮廓线,分析了推杆运动规律曲线之间的关系及从动件运动规律曲线的推(回)程、推(回)程运动角、远(近)休止角、冲击点等参数。最后对UG分析和实际凸轮实验装置设计的凸轮及测得数据进行对比,验证得出新型凸轮实验研究装置能够满足要求,具有很高的实用性。In order to solve the subjective problems in cam design of traditional mechanic such as long period,lowprecision,non-intuitive corresponding relation in test and research parameter,it designs and produces one kind of newcam test and research equipment. Cam test equipment uses hold-in range to enhance movement precision in the mechanism design,and linear rail to enhance movement stability of equipment,so that it guarantees design precision of cam mechanism of equipment. This equipment is one kind of test equipment of using 3 aspects such as geometry,movement and mechanics to make research on cam,it adopts rotated and converted principle as well as translation theory and synthesis and decomposition of movement to make theoretical analysis on design equipment of cam outline and movement discipline of follower to make test demonstration,at the same time establishes 3-D effective model,using UG movement analysis tool to make test demonstration on 2 kinds of test equipment,and it uses practical cam test equipment to design cam outline in the expert test drawings,makes analysis on relations between curves of putter movement discipline and pull（ push） distance,pull（ push） distance angle,discipline of follower movement curve,remote（ near）angle of repose,impact point etc. Finally,it makes comparison on UG analysis and cam designed by practical test equipment as well as test data,and gets the newcam test and research equipment by demonstration can meet requirement and has high practicability.

关 键 词：凸轮实验装置 运动规律曲线 凸轮运动参数 

分 类 号：TH132[机械工程—机械制造及自动化] TG65[金属学及工艺—金属切削加工及机床]