Automatic fire welding device for oil cooler

The utility model provides an automatic fire welding device for an oil cooler, which comprises a rack, support legs are arranged at the lower part of the rack, an oil cooler placing layer is arranged in the rack, and the oil cooler is placed on the oil cooler placing layer; a fire welding layer is arranged at the upper part of the rack; a driving mechanism is arranged in the fire welding layer; a flame gun frame is installed on a component in the driving mechanism, two sliding mechanisms are installed on the lower portion of the flame gun frame, and a flame gun is installed on the lower portion of a sliding block in each sliding mechanism. The flame gun is connected to a hose through a three-way pipe, and the hose is connected to a fuel supply device; the device further comprises a control cabinet, and the control cabinet is connected to a driving motor in the driving mechanism through a wire. According to the utility model, the heating time and the heating position of flames on two sides to the sealing joint