机器人自动双丝焊在某地铁车辆转向架侧梁焊缝的应用与优化  

Analysis of the application and optimization of robot automatic double-wire welding in the side beam weld of a certain metro vehicle bogie

作　　者：孟飞 徐安兵 MENG Fei;XU Anbing(CRRC Nanjing Puzhen Vehicle Co.,Ltd.,Nanjing Jiangsu 210031,China)

机构地区：[1]中车南京浦镇车辆有限公司,江苏南京210031

出　　处：《现代城市轨道交通》2024年第7期59-64,共6页Modern Urban Transit

摘　　要：文章以某型号地铁车辆转向架侧梁焊缝焊接的方法为研究对象,重点分析机器人自动双丝焊在侧梁外体、对接焊缝以及小件焊缝中的应用。针对自动双丝焊过程中出现的咬边、焊角不匀、飞溅过多、焊缝成型不良等技术难点进行研究。通过优化工艺编程的关键环节、改进自动双丝焊的焊接技巧,并充分利用双丝焊高速脉冲焊接的特性,调整焊接顺序,优化摆幅参数,并调整待焊件及机械手变位机轴值的角度。该措施有效解决双丝焊在现场作业中出现的焊缝缺陷问题,确保焊缝质量符合标准,提高熔敷金属与母材的熔合性。同时,熔敷金属的填充量得到最适宜的提升,不仅保证焊接质量,还使得焊缝成型美观。上述改进和优化显著提升自动双丝焊的焊接水平,对于解决同类型结构焊接件的现场操作难点具有重要指导意义。This article takes the welding method of the frame side beam of a certain type of metro vehicle bogie as the research object,and focuses on analyzing the application of automatic double-wire welding of robot in the outer body of side beam,butt weld and small piece weld.The technical difficulties such as biting edge,uneven welding angle,excessive spatter and poor weld seam molding,which appear in the process of automatic double-wire welding,are studied.By optimizing the key links of process programming,improving the welding technique of automatic double-wire welding,and making full use of the characteristics of double-wire welding high-speed pulse welding,improving the welding sequence,optimizing the swing parameter,and adjusting the angle value of the weldment to be welded and the axis value of the manipulator's shift machine.These measures have effectively solved the issue of weld defects occurring in the field operation of double-wire welding,ensure that the quality of the weld meets the standard,and improve the fusibility of the molten metal and the base material.At the same time,the filler volume of the molten metal is optimized,which not only ensures the quality of the weld,but also makes the weld beautifully shaped.These improvements and optimizations significantly enhance the welding level of automatic double-wire welding,and are of great significance in solving the field operation difficulties of the same type of structural weldments.

关 键 词：地铁车辆 转向架 TANDEM双丝焊 长焊缝 小部件 焊缝缺陷 参数优化 

分 类 号：U270.6[机械工程—车辆工程]