Research Of Biaxial Synchronous Controller Of Planer Type Machine

biaxial Synchronization Control is a very important technology in processing of Planer Type EDM Machine.The dual axis synchronous feed system of Planer Type Machine is a strong coupling and nonlinear system.it is very difficult to control the system remain synchronized.While,the precision of synchronous control directly affects the machining accuracy and processing performance.Therefore,it is very important to study the biaxial synchronous control technology.In this paper,the dual axis feed system of Planer Type Machine is taken as research object,A two axis feed experimental platform is built,and the control strategy and control algorithm are studied by modeling and simulation.Confirm the control plan and carry out experimental verification.The details are as follows:1.In this paper,the theoretical analysis of the dual axis synchronous feed system of planer type machine is carried out,aiming at the coupling characteristics of planer type machine due to rigid connection of mechanical crossbeams.A dual axis synchronous feed system model with mechanical coupling characteristics and double closed loop servo system model are established by using Matlab/Sumlink.In order to obtain better synchronization control effect and meet the demands of control precision,Technology of biaxial synchronous control is used to control the position compensation method of a dual axis system,The simulation results are compared under different control strategies,and it is proved that the cross coupling control has better control effect.On this basis,the fuzzy PID algorithm is adopted in cross-coupling control strategy,and finally the simulation results show that compare with traditional PID algorithm,the cross-coupling control base on fuzzy PID algorithm has higher precision of synchronous control and anti-interference.2.Hardware design of biaxial synchronous controller is accomplished,using FPGA as main control ship.Design and realize biaxial synchronous control program based on modular design method in the Quartus ii development environment.The correctness of program is validated by Modelsim simulation.3.The biaxial synchronous experimental platform is designed and built,experimental verification is conducted in the experimental platform.The positioning precision of each axes measurements in half closed loop are carried out by laser interferometer,and the experiment is carried out under the uniaxial position close-cycle control.The experimental results verify that the two axes have high positioning accuracy under closed loop control.On this basis,a biaxial experiment is carried out,and the experimental results show that the cross-coupling control based on fuzzy PID algorithm has better biaxial synchronization accuracy.