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PLC控制系统由于其简单易于实现,可靠性好,是代替继电器控制系统有效的方法。本文通过研制基于PLC控制的四自由度气动搬运机械手,设计相关的气动回路与PLC控制系统,并基于此分析了机械手中PLC控制系统的特点。最后,通过对PLC程序的研究表明,采用顺序功能图设计方法是实现气动机械手动作路线及其他复杂顺序动作系统的有效方法。
PLC control system because of its simple and easy to implement, reliability, is to replace the relay control system is an effective method. In this paper, we design the pneumatic circuit and PLC control system based on PLC controlled 4-DOF pneumatic handling manipulator, and analyze the characteristics of PLC control system in manipulator. Finally, through the study of PLC program, it is shown that the method of sequential function chart design is an effective way to realize the pneumatic manipulator’s action route and other complex sequential motion systems.