REserch on the hybrid cam-linkage mechanism realizing trajectory

Based on the analysis of current situation and application prospect of hybrid electromechanical system, the concept of hybrid cam-linkage mechanism is proposed and its significance is expounded. The basic form of hybrid-driven mechanism is given and its kinematic principle is analyzed. Take realizing ellipse path with scheduled timing mark as example, the design method of hybrid cam-linkage generating path is introduced. Providing the parametric equation of the path that the mechanism will generate, formulae are derived by kinematic analysis and from these formulae, the theoretical contour equation of the cam is obtained, and then the rotational angle of servo-motor which actuates the crank is solved through computer programming. Using the graphic solution, the flexible workspace and path characteristic of hybrid cam-linkage mechanism is analyzed, and the conclusions are verified by computer simulation, and then the design principle of path is proposed. The kinematic analysis and path characteristic of hybrid cam-linkage mechanism provides more theoretical basis for further study on its dynamic characteristic and geometric optimization issues of mechanism system.