Semi-automatic linear welding machine

The utility model relates to a semi-automatic linear welding machine which comprises an automatic traveling device, an electric welding machine, a control switch box, a guide rail and a platform. The semi-automatic linear welding machine is characterized in that a control switch is connected with the electric welding machine and the automatic traveling device, a welding gun of the electric welding machine is clamped on a chuck device of the automatic traveling device, the automatic traveling device is placed on the guide rail in linear automatic welding, and the platform and the guide rail are assembled and fastened through a screw. Compared with the prior art, the semi-automatic linear welding machine is simple to operate, easy to manufacture, reliable in line welding quality and high in production efficiency. Qualified rate of the semi-automatic linear welding machine can reach 100%.