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    • 1. 发明授权
    • Profile control apparatus for thermal working machine
    • 热加工机型材控制装置
    • US4739235A
    • 1988-04-19
    • US933163
    • 1986-11-21
    • Atsushi AikawaAkira Sengoku
    • Atsushi AikawaAkira Sengoku
    • B23Q35/127B23K26/02G05B19/23B23K7/10
    • G05B19/231G05B2219/36383G05B2219/49237
    • In a thermal cutting machine provided with an NC system of the type having a manual pulse generator allowing the operator to manually adjust the working head height from a workpiece a profile control apparatus is provided to maintain a reference distance between the head and a non-flat workpiece. The profile control apparatus is installed in the cutting machine, by adding only a head distance sensor and a Z-axis controller in parallel with the manual pulse generator via a selector switch. The Z-axis controller generates a pulse signal having a frequency proportional to a differential voltage between a reference head height determined by the NC system and an actual head height detected by the head distance sensor to correct the reference head height from the non-flat workpiece. The V-F conversion characteristics of the Z-axis controller are of Z-type, in particular, to reduce the profile error.
    • 在设置有具有手动脉冲发生器的类型的NC系统的热切割机中,允许操作者从工件手动调节工作头高度,设置型材控制装置以保持头部与非平面之间的参考距离 工件。 轮廓控制装置安装在切割机中,通过仅通过选择开关与手动脉冲发生器并行地添加头距离传感器和Z轴控制器。 Z轴控制器产生具有与由NC系统确定的参考头高度与由头距传感器检测到的实际头高度之间的差分电压成比例的频率的脉冲信号,以从非平坦工件校正参考头高度 。 Z轴控制器的V-F转换特性为Z型,特别是减小轮廓误差。