Research on On-line Detection and Data Processing Technology of Welding Seam for Bellow
In order to improve the welding quality and welding speed of irregular bellows, according to the characteristic of welding seam of bellows, an automatic and on-line detection technology is proposed in welding technique. The infrared laser sensor is used for measuring with non-contact and real-time detection of welded joint center, the position of welding seam is transfered by the IEEE-1394(Fire Wire). After data preprocessing, the coordinates of feature point are extracted, be storaged and forecasted, then sent to the control system, the moving of welding gun is controlled along track scanning. According to the accuracy analysis of on-line detection system of bellows, the technology of tracking measurement is stable and reliable, and it is effective for improving measuring accuracy and efficiency.
Z. W. Ren et al., "Research on On-line Detection and Data Processing Technology of Welding Seam for Bellow", Applied Mechanics and Materials, Vols. 66-68, pp. 1714-1717, 2011