Abstract：In order to improve the efficiency of kinematics and dynamics simulation analyses of the six-bar mechanism of a press, the kinematics model of six-bar mechanism of a press was established by the Pro/E skeleton model and the kinematics analysis was carried out.The simulation results reveal the curves of the displacement, velocity and acceleration of the punch head.The balance moment can be calculated based on the principal of virtue work and MATLAB, and then the kinematics energy of the body, driving work, and the work of resistance can be obtained.This analysis method liberates designers from the vector analysis method, matrix operations and the dynamics analysis software.Thus, it improves the efficiency of mechanism analysis.

Keyword：principle of virtual work;six-bar mechanism;pro/E skeleton model;kinematics simulation;dynamics analysis;