基于共轭曲面原理送料机构弧面分度凸轮的建模及运动仿真

Modeling and Motion Simulation of the Globoidal Indexing CAM on Feeding,echanism Based on Conjugate Surfece Theory

基于共轭曲面原理,使用Matlab、SolidWork以及NX软件融合方法对弧面分度凸轮进行建模与设计。针对生产线滚子凸轮,使用点线面法和等距曲面法建立凸轮3D模型,利用Matlab计算出凸轮工作轮廓面相应的空间坐标点,采用SolidWork完成曲线和曲面的模型构建,以及NX软件对弧面凸轮机构设计进行仿真。结果发现,点线面法建立的凸轮工作曲面,使分度盘转动时速度曲线波动幅度较小,曲面的精度更高,更适合建立送料机构弧面分度凸轮的3D模型。

Space un-expandable curved CAM was the key part of the feeding mechanism in the production line,and was problems of CAM designing and manufacturing engineering.Based on conjugate surface theory,the fusion method of the Matlab,SolidWorks,and NX software are adopted to model and design for the globoidal indexing CAM.Aimed to the roller CAM on feeding mechanism,the point,line and surface method and isometric surface method were used to establish the 3D modeling of the CAM,and the corresponding spatial coordinate points of the working contour of the CAM were calculated by the Matlab,the model ofthe curve and surface was completed by using SolidWorks,and the design of the camber mechanism was simulated by NX software.Results show that the working surface of the CAM established by point,line and surface method makes fluctuation of the velocity curve of the globoidal indexing plate smaller,and the accuracy of the surface is higher.The point,line and surface method is more suitable to establish the 3D model of the cam-surface indexing CAM on the feeding mechanism.Combined with the advantages of various software,the fusion method reduces the difficulty of roller CAM design in production line,saves the research and development time,improves the work efficiency,and provides a feasible method for the design of space un-expandable curved CAM.