大型激光叠焊系统研究与开发

介绍一种新型激光叠焊系统,利用该系统可将尺寸范围为12.0m×1.5m厚度不等的两块不锈钢板重叠焊接在一起。针对大尺寸不锈钢板尺寸大、易变形等特点提出了主—辅式压紧机构,有效地控制了焊接过程中大尺寸板材的变形并消除了板材间隙;设计了ufxyz型四轴联动方案:u轴与x轴同向,u轴驱动钢板进行大范围运动,x轴驱动激光头小范围运动。u轴与x轴的复合运动提高系统精度的同时提高了系统焊接动态响应速度。对实际焊接板材进行试验验证,结果表明使用该系统进行焊接的钢板可承受压强最大能达到6.1MPa。

A novel laser stitch welding system is introduced.It can weld together two superposed stainless steel plates of different thickness and within the size range of 12.0 m×1.5 m.In order to solve the problem of easy deformation of large-size stainless steel plates, a major-minor clamping mechanism is proposed, which can effectively control the deformation of large-size plates in the welding process and eliminate the gap between the plates.The ufxyz-type four-axis linkage scheme is designed.The u axis and the x axis are in the same direction.The u axis drives the plate to move in a large scope.The x axis drives the laser head to move in a small scope.The composite motion of u axis and x axis improves the precision and dynamic response speed of the system.The experimental results show that the steel plates welded by this system can withstand pressure up to 6.1 MPa.

中科院知识创新工程资助项目。