Work and feed control system for cutting machines
    3.
    发明授权
    Work and feed control system for cutting machines 失效
    切割机工作和进料控制系统

    公开(公告)号:US4031437A

    公开(公告)日:1977-06-21

    申请号:US594584

    申请日:1975-07-10

    CPC classification number: B23Q15/12

    Abstract: A control system for a cutting machine is disclosed in which the relative motion between a cutting tool, supported by a cutting motor, and the material to be cut is controlled by a feed motor. The cutting motor load level is continuously monitored and used to derive a load level signal which is related to the cutting motor load level and a desired cutting load level. The feed motor's forward speed is controlled to increase at a selected fixed rate until the cutting motor load level is substantially equal to the desired cutting load level. Whenever the cutting motor load level increases above the desired cutting load level, representing an overload condition, the speed of the feed motor in the forward direction is reduced at the rate of increase of the overload condition. If the cutting motor load level exceeds a threshold load level, the feed motor is driven in a reverse direction at a speed which increases or decreases at a rate related to the rate at which the cutting motor load level increases above or decreases toward said threshold load level.

    Abstract translation: 公开了一种用于切割机的控制系统,其中由切割马达支撑的切割工具与待切割的材料之间的相对运动由进给马达控制。 连续监测切割电机负载水平,并用于导出与切割电机负载水平和期望的切割负载水平相关的负载电平信号。 进给电机的前进速度被控制为以选定的固定速率增加,直到切割电机的负载水平基本上等于所需的切割负载水平。 每当切割电机负载水平增加到所需切割负载水平以上时,表示过载状态,进给电机在正向方向上的速度以过载状况的增加速率减小。 如果切割马达负载水平超过阈值负载水平,则进给马达以相反的速度被驱动,速度以与切割马达负载水平增加到所述阈值负载高于或降低的速率相关联的速率 水平。

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