Butt weld deviation based on welding gun swing and arc rotation
Aiming at the difficulty of realizing weld deviation identification and automatic welding for butt welds with different groove widths,a welding seam deviation identification method based on the combination of welding gun swing and rotating arc was proposed.The welding current signal of butt weld under different welding gun deviation is studied,the current signal is collected and time-frequency analysis is carried out to select the appropriate filtering method,and the combination filtering with soft threshold wavelet as the core is carried out.The short-time energy processing and deviation algorithm calculation are carried out on the current signal after filtering and denoising,and the edge detection of welding gun and weld deviation identification are realized.And the deviation result is basically the same as the set welding gun deviation value,which verifies the accuracy of the whole weld deviation identification method.
NETL
NSTL
万方数据
维普
