为了提高高功率CO2激光加工系统的光束利用效率与加工过程的自动化程度,利用可编程逻辑控制器和运动控制器设计了一套3工位激光自动焊接控制系统。通过进行时序优化,可同时进行金刚石锯片的普齿、斜齿和金刚石钻头的焊接加工。每个工位可独立完成手动调试、手动/自动焊接,并可以按照激光焊接工艺要求,实时进行激光功率调节。结果表明,该系统可以焊接115mm~600mm的各种普齿、斜齿锯片,以及20mm~250mm的各种金刚石钻头;光束利用率达到95%以上,在同种规格产品加工过程中,生产效率提高了50%,同时,系统具有全面的故障诊断、报警等功能。

In order to improve the laser utilization and automation of high power laser processing,a new three-working-position automatic laser welding control system was designed based on programmable logic controller and movement controller.By means of queue by turns and time sharing method to use the output laser,the universal saw blades,helical tooth saw blades and the bits can be welded simultaneously.Every working position can finish the manual debugger or execute the laser processing.And the processing laser power will be controlled independently by the working position.The production efficiency was improved 50% when the control system was used on welding production line. The universal saw blades,helical tooth saw blades and the bits in 115mm~600mm diameter and diamond drills in 20mm~250mm diameter can be welded in the system.Furthermore,the system has full diagnosis and warning functions.