Grapho-analytical kinematic analysis for plane cam mechanisms and follower with finite curvature

8th International Conference on Advanced Concepts in Mechanical Engineering

Alaci, S.^1 ; Ciornei, F.C.^1 ; Buium, F.^2 ; Romanu, I.C.^1 ; Rusu, O.T.^1

Mechanics and Technologies Department, Stefan Cel Mare University, Suceava, Romania^1

Mechanical Engineering, Mechatronics and Robotics Department, Gheorghe Asachi Technical University of Iasi, Iasi, Romania^2

关键词: Analytical methodology;    Cam mechanism;    Constructive solutions;    Contact points;    Finite curvature;    Kinematic Analysis;    Kinematical analysis;    Method of analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/444/5/052001/pdf
DOI  :  10.1088/1757-899X/444/5/052001

来源: IOP

【 摘 要 】

The paper presents a general grapho-analytical methodology for kinematical analysis of whichever plane cam mechanism. The main constructive solutions of plane cam mechanisms are reviewed and the solutions of kinematical analysis are briefly presented. The most important difficulty in cam mechanisms analysis is the fact that when the follower has a curved face with random shape, the contact point between the cam and the follower has unknown trajectory. At the same time, the contact point moves both on the cam and on the follower contour, respectively. These displacements are required in the study of accelerations. The paper presents a method of analysis directly applicable for actual mechanism which allows finding all kinematical parameters of the mechanism. For structural reasons, there are separately approached the curved-face follower and the flat-face follower cases.