摘要
针对微型汽车车身裙边手工点焊的焊接质量较低、焊接工作强度较大以及焊接机器人成本较高等问题,根据车身裙边焊点的分布特征,从实际需求出发,设计了一种车身直线焊接单元的伺服系统。直线焊伺服系统由PLC控制工作台的直线运动以及焊钳的焊接动作;导电模块采用一体式结构设计方法,将焊钳和变压器固定在工作台上,使系统结构紧凑,节省了导电材料;以行程开关和防撞螺钉作为安全模块,防止工作台超程的产生。研究结果表明,直线焊伺服系统的设计提高了焊接质量与效率,能够降低生产成本,精简生产线,改善人机工程,且易于实现简单自动化。取代了人工点焊,对相关企业或研究人员实行低成本自动化生产线的设计和改造具有借鉴、启发作用,具有明确的工程应用前景。
Aiming at the problems of low welding quality, large welding workload on manual welding and high cost on welding robot when welding the skirt of a mini-car body, according to the actual demand and the distribution characteristics of the skirt＇s welding spots of car body, a kind of servo system of linear welding unit of car body was designed. In the servo system of linear welding unit, the linear motion of the stage and the welding motion of the electrode holder were controlled by PLC. To make system structure compact and save conductive material, the electrode holder and the transformer were fixed on the stage by conducting module, which uses the design method of integrated structure. The position switch and the anti-collision screw were used as security module to prevent the stage running over range. The results indicate that the design on the servo system of linear welding unit improves welding quality and efficiency, reduces the production cost, simplifies the product line, ameliorates ergonomics and realizes simple automation easily. This system replaces manual welding, which has specific engineering application prospects and plays a referenced and enlightening role on implementing the design and renovation of low-cost automatic production line for related-companies and researchers.
出处
《机电工程》
CAS
2013年第6期686-688,703,共4页
Journal of Mechanical & Electrical Engineering
关键词
直线焊接
伺服系统
导电模块
安全模块
linear welding
servo system
conducting module
security module
