机械液压混合伺服压力机的方案设计与研究

Design of the servo press machine in mechanical-hydraulic hybrid system

为了满足钣金行业对压力机性能越来越高的需求,结合机械压力机和液压机的优点提出了一种机械液压混合伺服压力机的技术方案。首先设计传动方案,即采用伺服电机驱动液压回路,液压回路带动曲柄滑块机构实现工件压制。然后对传动系统进行分析,推导出传递函数,并建立了PID控制模型。最后通过实验台对滑块进行位移和速度数据的采集和验证。结果表明,该传动方案设计合理、实验装置运行稳定可靠,为机械液压混合伺服压力机的进一步研发提供了参考。

In order to meet the increasing demand of sheet metal industry for press performance, it introduces the development status of press. Combining the advantages of mechanical press and hydraulic press, it proposes a technical scheme of mechanical-hydraulic hybrid servo press. It designs the transmission system, applies the servo motor to drive the hydraulic pump, uses hydraulic motor to drive the crank slider mechanism. This realizes the workpiece pressing process. It establishes the PID control model, sets the experimental platform, obtains the displacement and velocity data of the slider from test. The result shows the design scheme is reasonable, the experimental device runs stably and reliably. This provides a reference for the further research and development of mechanical-hydraulic hybrid servo press machine.