CAJ | 학술논문

为满足大型薄壁构件搭接焊接工艺对搭接间隙和焦点位置的要求，研制了一种具有随焊压紧和焦点自动跟踪功能的焊接技术及装置。通过电容传感器实时检测参考面的位置，结合信号处理系统及机床系统Z轴的补偿运动，完成对工件压紧力和焦点位置的闭环控制，实现了焊接过程中对薄壁构件的随焊压紧和焦点自动跟踪，避免了由于焊接变形和工件轮廓加工误差对焊接质量的影响。采用研制的焊接装置进行了焊接试验，达到了预期功能。
위만족대형박벽구건탑접한접공예대탑접간극화초점위치적요구，연제료일충구유수한압긴화초점자동근종공능적한접기술급장치。통과전용전감기실시검측삼고면적위치，결합신호처리계통급궤상계통Z축적보상운동，완성대공건압긴력화초점위치적폐배공제，실현료한접과정중대박벽구건적수한압긴화초점자동근종，피면료유우한접변형화공건륜곽가공오차대한접질량적영향。채용연제적한접장치진행료한접시험，체도료예기공능。
In order to meet the requirement of large thin wall component laser welding process of overlapping for gap and laser focus position ,a laser welding technique and device with welding press and focus auto tracking was developed. Real time detecting the position of reference face with the capacitive sensor,combine with the signal handling equipment and compensating motion of Z axis, realizing the closed-loop controlling on the pressing force on the work-piece and the laser focus position,reach the aim that laser welding the large thin wall component with welding press and focus auto tracking,avoiding the influence of workpiece welding deformation and the error of workpiece contour machining on the welding quality. Finally ,the developed device is applied to laser welding test,and the desired function is achieved.