焊接机械手在起重机制造上的应用

Application of welding manipulator in crane manufacturing

介绍一种智能焊接机械手,克服起重机主梁质量大、体积大、差异化大、组装精度差、焊缝形式复杂等因素,实现起重机主梁和端梁内部隔板双面断续焊缝的自动寻位、定位与焊接。将焊工从高污染的梁盒内部解脱出来,很大程度改善工人的作业环境,并提高焊缝尺寸精度、焊缝质量。加上梁盒4条纵缝采用双枪龙门焊,实现起重机主、端梁90%的焊缝自动化焊接。

The paper introduces an intelligent welding manipulator which can overcome the factors such as large mass,large volume,large difference,poor assembly accuracy and complex weld form of the crane girder and end girder,and realizes automatic site searching,positioning and welding of double-sided intermittent weld of crane girder and inner partition.The welding manipulator can free the welder free from the highly polluted girder box,greatly improving the working environment of workers and improving the accuracy of weld size and weld quality.The four longitudinal seams of the girder box are welded by double-gun gantry welding to realize 90%automatic welding of the main and end girders of the crane.