Motion Design Of Hybrid-Driven Controllable Mechanical Press And Analysis Of Its Dymanic

Hybrid-driven controllable mechanical press is the problem in the research field of mechanical press improvement. It is combine the motion of a large constant velocity motor with a small servomotor via a two degree of freedom mechanism. In this machine, the constant speed motor provides the main power and motion required, while servomotor acts as a motion modulation device.Therefore, the hybrid-driven controllable mechanical pres can supplies programmable motion output to meet requirements of different products different materials. So this kinds of mechanical press not only has advantages of classical mechanical press for its high speed, high precision and high load, but also is controllable and has great flexibility.To begin with the analysis of disadvantage of other kinds of mechanical presses, the feasibility of hybrid-driven theoretic is discussed. Considered the typical kinetic rules of mechanical press, the motion design of the hybrid-driven mechanical press suitable for deep drawing is selected.Because of the superiority of the virtual prototype technique, the three-dimensional full-scale mockup of this mechanical press is set up, including the part and assembly, with the help of software Pro/E.The kinematical model of the hybrid-driven controllable press is set up. Then the forward and inverse kinematics of this mechanical press is analyzed by using loop vector method. Kinematical simulation analysis is also worked out by software Pro/E.On the basis of the kinematical analysis, the equations of two crank's balance moment are studied considering the inertia of links. Then, the dynamical model for the hybrid-driven controllable press is developed using Lagrange's formulation and dynamic result is carried out through solving the equations by the fourth Runge-Kutta approach.