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前言据许多轴承厂家反映,作为主要生产设备的油压轴承磨床,特别是一些全自动化磨床,其电气控制部份是由二极管矩阵电路,三极管、可控硅、继电器、机械计数器等成百上千的分立元器件组合而成的错综复杂的逻辑控制电路。由于分立元件、可控硅、继电器等经常出问题,加之抗干扰能力差,整个逻辑功能经常出错,使机床无法正常运行。稳定性差,维修又困难,床子经常处于工作时间少于维修时间的状况,几万元的一
Foreword According to many bearing manufacturers, as the main production equipment, hydraulic bearing grinder, especially some fully automatic grinding machine, the electrical control part is composed of diode matrix circuit, transistor, thyristor, relays, mechanical counters, etc. hundreds The discrete components of the combination of complex logic control circuit. Due to the discrete components, SCR, relays and other problems often, combined with poor anti-interference ability, the entire logic often make mistakes, the machine can not be normal operation. Stability is poor, maintenance is difficult, the bed is often in the working hours less than the status of maintenance time, a few million