Study on Elastodynamics of Multi Bar Mechanism of High Speed Precision Press
The kinematic accuracy of high-speed precision press mechanism is a key factor affecting the quality of stamping prod-ucts.The research of mechanism elastodynamics is of great significance to improve the kinematic accuracy of stamping mecha-nism.Taking the double slider six bar mechanism of high-speed press as the research object,based on the theory of elastic dynam-ics,the mathematical model of elastic deformation analysis of multi bar mechanism is established,and the solution method of motion accuracy of stamping mechanism considering elastic deformation is proposed.Taking the beam element as the equivalent element,considering the influence of transverse displacement,longitudinal displacement,angular displacement and curvature,the motion differential equation of the mechanism is established and solved by real mode superposition method.Finally,the elas-tic deformation of the component and the accuracy error of the bottom dead center caused by it are determined,and the maximum dynamic stress of the elastic component is obtained.The analysis results show that the elastic deformation is the main factor affect-ing the motion accuracy of precision stamping machine,and the research on the elastodynamics of high-speed precision press has theoretical significance for the motion accuracy design.
High Speed Precision PressElastodynamicsMotion AccuracyDynamic Stress
NETL
NSTL
万方数据
维普
