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DM5440型电加工成型机床的主轴采用液压进给系统在工作中遇到断电,由于液压泵与液压蓄能器压力下降的隋性和电液伺服阀控制电压迅速消失的作用,主轴先向上运动,液压压力消失后即向下运动,使电极和工件相撞。利用液压进给系统断电后主轴先向上运动的特点,采用灵敏可靠的电控器件控制的位控装置,对电极和主轴实施保护。
DM5440 electric machine tool forming spindle hydraulic feed system encountered in the work of power failure, due to the hydraulic pump and hydraulic accumulator pressure drop of inertia and electro-hydraulic servo valve control voltage disappears quickly, the spindle first upward movement , The hydraulic pressure disappears after the downward movement, the electrode collides with the workpiece. Utilizing the characteristics of the first upward movement of the spindle after the power is cut off by the hydraulic feed system, a sensitive and reliable position control device controlled by the electronic control device is used to protect the electrode and the spindle.