基于SEW变频器的集成系统在门盖焊接线的应用

王小康 曹德严

摘要：汽车白车身门盖件材料较薄、易变性等因素易产生焊接问题，提升汽车焊装线的自动化、智能化水平来改善门盖焊接质量成为重要渠道。本文基于SEW变频器的集成系统在门盖焊接线的应用进行分析，结合SEW变频器、PLC控制器、智能焊接机器人等硬件优势，对门盖电气控制系统和集成系统HMI界面设计进行研究，完成门盖焊接电气控制柜、SEW变频器硬件设计和HMI人机界面平台开发。门盖焊接线集成系统自动化、智能化水平高，能够降低焊接劳动强度、改善门盖焊接质量，对集成化汽车焊装线设计具有一定的借鉴意义。

Abstract： Welding problems are easy to occur due to thin material and variability of door cover parts of automobile body in white. Therefore， it has become an important channel to improve the welding quality of door cover by improving the automation and intelligence of automobile welding line. This paper analyzes the application of integrated system based on sew frequency converter in door cover welding line. Combined with the hardware advantages of sew frequency converter， PLC controller and intelligent welding robot， this paper studies the HMI interface design of door cover electrical control system and integrated system， and completes the hardware design of door cover welding electrical control cabinet， sew frequency converter and the development of HMI man-machine interface platform. The door cover welding line integration system has a high level of automation and intelligence， which can reduce the welding labor intensity and improve the door cover welding quality. It has a certain reference significance for the design of integrated automobile welding line.

关键词：SEW;门盖焊接;集成系统;HMI界面

Key words： SEW;door cover welding;integrated system;HMI interface

中图分类号：TP278                                    文献标识码：A                                  文章編号：1674-957X（2021）21-0219-02

0  引言

随着汽车制造业的快速发展，汽车更新换代周期越来越短，汽车车型和配置进行不断创新和汽车整体效果不断提升，可供人们选择的车辆种类越来越多，进而引发了汽车行业的激烈竞争，所以汽车外观质量和效果成为人们选择车辆的重要参考因素。汽车白车身焊接是汽车制造重要组成部分，白车身门盖总成是关键环节，直接关乎用户体验和外观感受。传统的门盖焊接存在焊点压痕、毛刺，甚至烧穿等问题，严重影响汽车外观表面质量[1-2]。本文针对白车身门盖焊接系统进行研究，集成SEW伺服控制器、PLC控制器、焊接机器人、触摸屏等设计门盖焊接集成控制系统，采用主站+多从站的分布式通讯布局，各控制系统间采用PROFINET/ PROFIBUS协议通讯，实现高速数据传输和可靠通讯，基于西门子触摸屏设计HMI界面，实现焊接控制系统监控。……