基于PLC的螺柱焊自动化装配控制系统设计  

Design of Automatic Assembly Control System for Stud Welding Based on PLC

作　　者：鄢然 秦杨 殷勤 夏磊 赵青 Yan Ran;Qin Yang;Yin Qin;Xia Lei;Zhao Qing(School of Mechanical Engineering,Chongqing University of Technology,Chongqing 400050,China)

机构地区：[1]重庆理工大学机械工程学院,重庆400050

出　　处：《机电工程技术》2024年第4期16-19,共4页Mechanical & Electrical Engineering Technology

基　　金：国家自然科学基金项目(52105245);重庆市自然科学基金面上项目(cstc2021jcyj-msxmX0303);重庆市教育委员会科学技术研究项目(KJQN202001147)。

摘　　要：在螺柱焊装配过程中,仅靠工人手动旋拧会导致装配效率低下、出错率高,以及难以保持按预设扭矩进行装配等问题。为此,以西门子S7-1200 PLC为核心,结合振动盘、滑台模组、传感器、气动元器件以及旋拧枪等外围设备开发一个螺柱焊自动化装配系统。在该系统中,PLC通过传感器检测零件是否就位,以控制振动盘的启停,从而实现螺柱和底座的有序上料。通过控制步进电机、气动夹手和气缸,完成零件的夹取和装配流程。通过Modbus TCP通信控制旋拧枪,实现螺柱和底座按预设扭矩的稳定装配。这种方法确保了螺柱焊部件在车体焊接过程中的高稳定性,提高了螺柱焊的装配效率,节省了大量人力并优化了质量。During the welding and assembly process of studs,only rely on manual screwing by workers can lead to some problems,such as low assembly efficiency,high error rate,and difficulty in maintaining the preset torque.In response to these issues,the Siemens S7-1200 PLC is used as the core,and combining with peripheral equipment such as vibration discs,sliding table modules,sensors,pneumatic components,and torque guns,a stud welding automation assembly system is developed.In this system,the PLC detects whether the parts are in place through sensors to control the start and stop of the vibration disk,thereby orderly loading of the studs and bases can be achieved.The clamping and assembly process of parts can be completed by controlling the stepper motor,pneumatic gripper,and cylinder.The torque gun is controlled through Modbus TCP communication to achieve stable assembly of the studs and base according to the preset torque.By using this method,high stability of stud welding components during the vehicle welding process can be ensured,the assembly efficiency of stud welding can be improved,and saving a lot of manpower and optimizing quality.

关 键 词：螺柱焊 自动化 PLC 通信控制 

分 类 号：U445.32[建筑科学—桥梁与隧道工程]