摘要
An automatic seam tracking system used in submerged arc welding is presented.In the system, the linear CCD vision sensor is installed in front of the welding torch. Laserstructure light emitted by the semiconductor laser irradiates on a slant to work-piece surface andforms a structure light strip on work-piece surface. Scatter light of the strip is received bylinear CCD on top of the seam and the image information of seam can be obtained. By way of imageprocessing and applying Fuzzy-P controller in tracking process, automatic seam tracking has beenrealized accurately. Anti-disturbing ability of the system to work-piece surface status has beenenhanced largely by classified microadjustment of torch height.
An automatic seam tracking system used in submerged arc welding is presented.In the system, the linear CCD vision sensor is installed in front of the welding torch. Laserstructure light emitted by the semiconductor laser irradiates on a slant to work-piece surface andforms a structure light strip on work-piece surface. Scatter light of the strip is received bylinear CCD on top of the seam and the image information of seam can be obtained. By way of imageprocessing and applying Fuzzy-P controller in tracking process, automatic seam tracking has beenrealized accurately. Anti-disturbing ability of the system to work-piece surface status has beenenhanced largely by classified microadjustment of torch height.
