Simulation and Analysis on Hydraulic Control System of CNC PM Press Based on Matlab/Simulink

The fundamental of hydraulic control system of CNC PM press was introduced.The types of the components were selected,and the transfer function models of the subsystems were established.The control subsystems of displacement,velocity and pressure were simulated by using Matlab/Simulink.The simulation results prove that the designed system has good control performances of displacement and velocity,but the response time of pressure control is long,and the peak occured on the time of pressure unloading need to be noticed.