中小型内高压成形机液压系统的设计与仿真

为研发节能高效、经济实用的三侧缸内高压成形设备,设计了合模力可变且最大为10 MN,三轴向进给、组合式充液胀形且最高胀形压力为300 MPa的中小型内高压成形机液压系统,并对系统主要部件选型。将整机液压系统分为合模压机、充液胀形、轴向进给和下缸退料4个子系统,并基于AMESim对各子系统进行建模与仿真测试。在此基础上建立整机液压系统完整仿真模型,并应用工程成形实例进行仿真试验。仿真实验结果表明:系统设计合理,主要参数控制精度达到设计要求,设计的液压系统为研发此类装备提供参考。

Hydraulic System Design and Simulation for Small to Medium Sized Internal High Pressure Forming Machine

To develop an energy-efficient and affordable internal high pressure forming machine, the hydraulic system of a small to medium sized machine is designed and the specifications of key hydraulic parts are confirmed. The designed machine is of three characteristics: the variable clamping fore with an upper limit of 10 MN, three axial feeding actuators, compound supercharging with a maximum blowing pressure of 300 MPa. The system is divided into four subsystems: the clamping press subsystem, the prefilling and bulging subsystem, the axial feeding subsystem and the workpiece ejecting subsystem. Detailed simulation models of four subsystems are established and tested based on the AMESim. Then the integrated model of the hydraulic system is established and an engineering forming example is adopted. Simulation results show that the hydraulic system is reasonable and the control accuracy of main parameters can meet the design requirements. The hydraulic system provides a reference for the equipment research and development.