Corrugated plate welding machine capable of automatically crossing waveform

The invention discloses a corrugated plate welding machine capable of automatically crossing the waveform. The corrugated plate welding machine comprises a base plate, a supporting table is fixedly arranged at the upper end of the base plate, a rack is fixedly arranged at the upper end of the supporting table, a machine box is movably arranged on the outer wall of the upper end of the supporting table, a fixing frame is fixedly arranged at the upper end of the machine box, a fixing body is movably arranged at the front end of the machine box, a clamping frame is fixedly arranged at the front end of the fixing body, and a welding gun and contact type displacement sensors are fixedly arranged on the inner wall of the clamping frame. According to the corrugated plate welding machine capable of automatically crossing the waveform, by arranging the contact type displacement sensors, the distance between the head part of the welding gun and a weld seam can be detected, the welding quality is effectively guaranteed, by arranging the three contact type displacement sensors, one of the three contact type displacement sensors can be used as the reference height and is used for being compared with the height value of one sensor in the middle, and when two sensors detect that a height difference exists, the welding gun starts to move along the track which crosses the waveform, and use is convenient.