摘要
针对自动化生产线中对于搬运机械手的动作要求,开发了一种小型气动机械手的控制系统。文中提出了气压传动驱动回路的设计思路,采用了双控电磁阀和双向气缸配合控制的气路结构,建立了基于PLC的控制系统组成框图,确定了PLC的输入/输出点数并选择了PLC的型号,设计了PLC的外部接线图、控制程序和顺序功能图。本控制系统可以实现手动和自动控制两种模式,手动控制时可以用按钮实现单步运行,自动控制时利用磁性接近开关实现信号的采集和反馈,与传统的继电器控制系统相比,具有运行准确、动作灵活、易于维护、成本低廉的优点,有较强的实际应用价值。实验结果表明,该控制系统具有良好的可行性和可靠性。
A iming at the requirements of the movement of the carrying manipulator in the automatic production line ,the control system of a small pneumatic manipulator was developed. In this paper, the design of pneumatic drive circuit was proposed,the Gas path structure with double control solenoid valves and two-way cylinders was used, a block diagram of the control system based on PLC was established, input and output signal and type of PLC were analyzed, wiring figure,control program and sequential function chart of the PLC control system were designed. The two modes of manual and automatic control were realized,the buttons can be used to achieve a single step operation in the mode of manual control, the magnetic proximity switches can be used to realize the signal acquisition and feedback in the mode of automatic control. The control system can work more accurately and flexiblely, it also has the advantages of easy maintenance and low cost compared with the traditional relay control system. The new control system has strong practical application value. The experimental results show that the control system has good feasibility and reliability.
出处
《机械设计与制造》
北大核心
2016年第11期215-217,222,共4页
Machinery Design & Manufacture
基金
辽宁省高校应用型课题专项资金项目(2015YYYJ-4)
辽宁省现代远程教育协会课题(2016XH01-35)
关键词
气动
搬运机械手
控制系统
PLC
顺序功能图
Pneumatic
Carrying Manipulator
Control System
PLC
Sequential Function Chart
