1、 电气工程及其自动化专业 课题名称: T68 镗床的 PLC 改造设计 摘 要 采用可编程程序控制器PLC实现T68镗床的自动控制给出了系 统主电路图,PLC 输入/输出接线图和梯形图程序,提高了镗床控制 系统的可靠性和镗床的工作效率,减少了维修,维护的工作量。为提 高镗床控制电路的稳定性和自动化程度,延长镗床的使用寿命, 降低 机床的故障。分析 T68 镗床的机械、电气控制原理,保留镗床主电 路由 PLC 取代复杂的电气连线控制,设计出由 PLC 。为镗床的控 制电路。 该系统开发周期仅为一周, 期间完成了将镗床的控制电路用 PLC 梯形图实现,大大的简化了电路,从而降低机床的故障、更加 便
2、于控制、也降低了维修的难度。 关键词:三菱 PLC;镗床;控制电路改造 Abstract Using programmable controller PLC T68boring machine automatic control system is given. The main circuit diagram, PLC input / output wiring diagram and ladder diagram program, raise boring machine control system reliability and boring work efficiency, redu
3、ce the repair, maintenance workload. In order to improve the stability of the boring machine control circuit and the degree of automation,Extended machine life, reduce machine fault .Analysis of T68boring machine mechanical, electrical control principle, retention of boring machine main circuit PLC
4、replaces the complex electrical connection control, designed by PLC. For machine control circuit. The system development cycle is only for one week, during the completion of the boring machine control circuit with the PLC ladder diagram, greatly simplifies the circuit, thereby reducing machine fault, easy control, also reduces the difficulty of repair. Key words: Mitsubishi PLC; boring machine; control circuit transformation 目 录 引言 第一章 T68 镗床控制系统的 PLC 改造