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为了应对大吨位精冲机快速缸液压系统高压力、大流量的工况,设计了一种快速缸液压系统和分阶段PID控制方法,并在AMESim软件中建立了仿真模型,对快速缸的压力、速度、位移进行了仿真。仿真结果与精冲机样机上的实验曲线对比,滑块上死点的定位误差在0.01 mm内,仿真位移曲线与给定位移曲线之间的延时误差为0.02 s,从而验证了模型的正确性,满足了精冲工艺的技术要求。通过调整模型参数,对比位移仿真曲线,分析验证了蓄能器的设计能够使大吨位精冲机快速缸系统的运行更快、更平稳且能耗更低。
In order to deal with the high pressure and high flow conditions of the rapid hydraulic system of a large tonnage precision finishing machine, a fast cylinder hydraulic system and a phased PID control method were designed. A simulation model was established in AMESim software to simulate the rapid cylinder pressure , Speed, displacement were simulated. The simulation results are compared with the experimental curves of the finishing machine. The positioning error of the top dead center of the slider is within 0.01 mm, and the delay error between the simulation displacement curve and the given displacement curve is 0.02 s, which verifies the correctness of the model Sex, to meet the technical requirements of fine blanking process. By adjusting the model parameters and comparing the displacement simulation curves, the analysis proves that the design of the accumulator can make the fast cylinder system of large-tonnage finishing machine operate faster, more smoothly and with lower energy consumption.