This automatic welding machine is mainly used for submerged arc welding of assembled H beam, the working principle is as following:
1. One H-beam steel placed on workpiece support frame with 45°, which is suitable for boat welding.
2. Gantry welding machine walks on rails at adjusted welding speed.
3. Use SAW welding to weld two seam.
4. Arc-guide frame automatic seam tracking.
5. Flux automatic feed and recovery system.