自动焊机已问世多年,但大部分是采用预置规范参数控制焊接过程的开环式焊机。虽然在多数场合这种焊机是适用的,但由于它们不能在受控焊接过程中识别和适应偏差,因而其应用范围受到限制。能够在焊接过程中检测出焊件错缝和焊缝偏斜之类的参数变化并使焊接过程适应这些变化的自动焊机是自适应焊机。自适应焊机可分为前馈式、后馈式和前馈-后馈联合式三类。 Automatic welding machines have been around for many years, but most are open-loop welders that control the welding process using preset specifications. Although most welders of this type are suitable, their range of application is limited by their inability to identify and accommodate deviations during controlled welding. An automatic welder that can detect changes in parameters such as weld seams and weld skew during the welding process and adapt the welding process to these changes is an adaptive welder. Adaptive welding machine can be divided into feedforward, feed-back and feedforward-fed joint three categories.