Automatic welding equipment

The utility model discloses automatic welding equipment for welding a cylinder. The automatic welding equipment comprises a walking guide track, an outer welding moving arm, an inner welding moving arm, a support mechanism for supporting the cylinder, a first driving mechanism for driving the outer welding moving arm to move along the walking guide track, a second driving mechanism for driving the inner welding moving arm to move along the walking guide track, an outer welding mechanism for welding an outer weld joint of the cylinder, and an inner welding mechanism for welding an inner weld joint of the cylinder, wherein the outer welding mechanism is connected with the outer welding moving arm; the inner welding mechanism is connected with the inner welding moving arm. By adopting the automatic welding equipment disclosed by the utility model, the requirements on welding quality and low cost can be both met, and the purpose that the outer welding mechanism and the inner welding mechanism are at different wel