Analysis And Research Of The Design Method Of Multi-axis Control System

On the background of the production status in the stage of replacing wheelhubs when maintaining locomotive axle, this paper comprehensively analyzesthe actual working conditions and technical requirements of production.And this paper discusses the design and development process of control systemof the turn-over mechanism. For ensuring the reliability and stability of theturn-over mechanism, this paper makes theoretical studies andsimulation analysis, combined with the development of the hydraulicdrive technology and PLC control technology.Analyzing the control requirement and main operation means of thecontrol system of the turn-over mechanism, and demonstrate the overall planof the system in two aspects of drive way and control way. With the maturetechnology of hydraulic drive and the PLC control system, we achieveelectric-hydraulic servo control. Analyzing the function of the turn-overmechanism, we determine that the turn-over mechanism ofthe locomotive axle is composed by the spindle turning device andtrolley supporting platform. The whole mechanism needs fivehydraulic drive control system: spindle angle con-trol system, the vertical axis position control system, the horizontal axisposition control system and the jaws clamping device control system byanalyzing the composition and operating principle of which, we determine themain parameters of the system. With the Simulink simulation tools in MATLAB,we build mathematical modeling and simulate process of the control system, and by analyzing the characteristics of the time domain and the frequencydomain, we determine the rapidity, reliability andstability of the hydraulic system. Designing PLC based electricalcontrol system, according to the working principle of the turn-overmechanism, adopting the Siemens S7-200 PLC as the master unit. Providinghardware electrical wiring diagram and software ove-rall design of the PLC control system, draw the overall flow chart of thecontrol system, and meet the requirements of the turn-over mechanism.Finally, we configure the control system with the force-control configurationsoftware to simulate actual working conditions, and achieve thestable simulation results of the control system.