摘要
针对盘形凸轮轮廓曲线绘制过程复杂、精确度低和参数对应关系不直观等问题,设计一种可连续、准确绘制盘形凸轮轮廓曲线的装置。利用凸轮轮廓曲线反求原理,结合机械运动的变换、合成与分解,对装置的传动方案和总体布置进行设计;通过分析装置的运动特征,对传动机构、基圆调整机构和偏心距调整机构等进行设计。在MATLAB中仿真对比绘制曲线与理论曲线,并在CATIA软件中建模仿真并制作实物,结果表明:所设计的凸轮轮廓曲线绘制装置可实现凸轮轮廓曲线绘制、基圆半径调整和偏心距调整等功能,验证了设计的可行性。所设计的凸轮轮廓曲线绘制装置操作简便,可准确清晰地绘制出凸轮轮廓曲线,提高了凸轮轮廓曲线的绘制精度和凸轮轮廓曲线分析的直观性。
In order to solve the problems of complex drawing process,low accuracy and parameter correspondence of parameters is not clear,a device which can draw the contour curve of disc cam continuously and accurately is designed.The transmission scheme and general arrangement of the device are designed based on the reverse solution principle of cam contour curve and the transformation,synthesis and decomposition of mechanical motion.The transmission mechanism,the cam base circle adjustment mechanism,the eccentricity adjustment mechanism are designed by analyzing the motion characteristics of the device.A certain displacement curve is simulated and compared with the theoretical curve in MATLAB,and 3D simulation model is established and simulated in CATIA software and physical objects is made,the results show that the device can realize the functions of the disc cam contour curve drawing,the base circle radius adjusting,the eccentricity adjusting,and the feasibility of the design is verified.The designed cam profile curve drawing device is easy to operate,the drawing accuracy of the cam profile curve and the intuitiveness of the cam profile curve analysis are improved.
作者
李学鋆
梁爽
章菊
LI Xueyun;LIANG Shuang;ZHANG Ju(School of Vehicle Engineering,Hubei University of Automotive Technology,Shiyan 442002,CHN;School of Mechanical Engineering,Sichuan University,Chengdu 610065,CHN;Key Laboratory of Automotive Power Train and Electronics,Hubei University of Automotive Technology,Shiyan 442002,CHN)
出处
《制造技术与机床》
北大核心
2020年第10期54-58,共5页
Manufacturing Technology & Machine Tool
基金
湖北省教育厅科学研究计划项目(B2019083)
湖北省汽车动力传动与车身电子重点实验室开放基金项目(ZDK1201905)。
