所谓焊缝跟踪,就是焊枪(或焊炬)沿焊缝自动导向,是实现电弧焊接自动化的重要环节之一。其关键在于如何精确、可靠地获得跟踪讯号,所以作为检出偏差讯号的传感器是其核心。焊缝跟踪按其特点可归纳为接触式和非接触式两大类。一、接触式焊缝跟踪利用跟踪滚轮或触指或机械式传感器沿焊缝坡口滚(滑)动或沿靠模滚(滑) The so-called weld tracking, that is, welding torch (or torch) along the weld automatically guide is to achieve one of the important aspects of arc welding automation. The key is how to obtain the tracking signal accurately and reliably, so it is the core of the sensor that detects the deviation signal. Weld tracking by its characteristics can be summarized as contact and non-contact two categories. First, the contact welding seam tracking Track roller or touch finger or mechanical sensor along the weld groove rolling (sliding) or along the mold roll (slip)