基于PLC的XA6132万牡能铣床电气控制.pdfVIP

摘 要 本论文是研究可编程控制器（plc）在XA6132万能铣床数控化改造中的 技术应用问题,利用plc的自身特性解决传统继电器—接触器电气控制系统存 在的线路复杂、可靠性稳定性差、故障诊断和排除困难等难题。由于PLC 电 气控制系统与继电器—接触器电气控制系统相比，具有结构简单，编程方便， 调试周期短，可靠性高，抗干扰能力强，故障率低，对工作环境要求低等一 系列优点。因此，本论文对XA6132万能铣床的数控改 ，将把PLC控制技术 应用到改造方案中去，从而大大提高铣床的工作性能。论文分析了铣床的控 制原理，制定了可编程控制器改 XA6132万能铣床电气控制系统的设计方案， 完成了电气控制系统硬件和软件的设计，其中包括PLC机型的选择、I/O端口 的分配、I/O硬件接线图的绘制、PLC梯形图程序的设计。对PLC控制铣床的 工作过程作了详细阐述，论述了采用PLC取代传统继电器—接触器电气控制 系统从而提高机床工作性能的方法，给出了相应的控制原理图。 关键词：可编程控制器，铣床，数控改造，电气控制系统 1 Abstract :This paper is to examine programmable controller (plc)X A6132 Universal Milling Machine transformation of technology shoul d be with problems, plcs own characteristics resolve traditional relay - contactor electrical control system of complex circuits, S tability poor reliability, fault diagnosis and rule out other prob lems difficult. As the PLC control system and electrical relay - c ontactor electrical control systems, is simple in structure, progr amming convenience, Debugging a short cycle, high reliability and anti-jamming capability and a low failure rate, the work environme nt requires a series of low strengths. Thus, the thesis of the XA6 132 Universal Milling Machine CNC transformation, PLC control tech nology will be applied to the transformation of the program, and t hus greatly enhance the performance of Miller. Analysis of the pap er machine control theory, developed a programmable controller XA6 132 Universal Milling Machine electrical control system design, co mpleted the electrical control system hardware and software design, including the choice of PLC Systems, I/O port allocation, I/O har dware wiring the drawing, PLC ladder logic program design. PLC con trol of the milling process were discussed in detail, This paper d iscusses the PLC to replace traditional relay - contactor electric al control system so as to enhance the performance of the machine, the corresponding co