风电塔架全自动四丝窄间隙埋弧焊技术OA

To address issues such as low weld seam deviation recognition accuracy and poor adaptability of oscillation control in the multi-layer,multi-pass welding process of medium-thick plates for wind power towers,a comprehensive approach is adopted,integrating theoretical analysis,simulation,experimental validation,environmental construction,and industrial-scale application of ultra-large wind power tower structures(construction of ultra-large,high-reliability offshore wind power tower structures).This includes process feature extraction and modeling of four-wire narrow-gap submerged arc welding(SAW),hybrid seam tracking using arc and laser vision sensing,multi-layer tracking in narrow-gap SAW,and closed-loop real-time control.The research is specifically focused on developing a fully automatic four-wire narrow-gap SAW seam tracking technology that requires no teaching,a mathematical model that is capable of real-time compensation for changes in welding parameters,and dual-sensor integration of arc and visual sensing.Experiments are conducted on 80 mm-thick Q420MC steel plates using four-wire SAW.The results show that the weld surfaces are found to be uniformly formed,and macro-metallographic analysis shows no cracks,inclusions,or other defects.Welding efficiency is improved by 300％,and 100％of non-destructive tests are passed,providing effective technical support for the intelligent manufacturing of wind power tower structures.