波纹管焊缝跟踪检测技术

Tracking measurement technology for welding seam of bellows

为了提高波纹管焊缝的焊接质量和焊接速度,根据波纹管焊缝的特点,提出了一种实时跟踪检测波纹管焊缝的自动焊接技术.采用红外激光传感器对焊缝中心进行非接触式实时检测,通过1394火线通讯传输焊缝轮廓数据,经焊缝数据点预处理后结合最小二乘法直线拟合原理对焊点坐标进行存储与预测,再向运动控制卡发送数据控制焊枪跟踪焊接.实验结果表明,此焊缝跟踪检测技术稳定可靠,能够有效地提高波纹管的焊接质量和生产效率.

In order to improve the seam quality and welding speed for bellows,an automatic welding technique with real-time tracking measurement system was presented according to the welding seam characteristics of bellows.The infrared laser sensor was used for performing the non-contact and real-time detection of welded joint center.The profile data of welding seam was transmitted by IEEE-1384 fire wire communication.Through pre-processing the data and combining with least square method,the coordinates of welding points were storaged and forecasted.Then the data was transmitted to the moving control card to control the welding gun.The experimental results show that the present tracking measurement technology for welding seam is stable and reliable,and is effective for improving the welding quality and efficiency of bellows.