Welding processing mould for radiator fin and base plate

The utility model provides a welding processing mould for radiator fin and base plate, which is mainly composed of a first die holder and a second die holder, wherein, the first die holder for supporting the base plate is arranged under the base plate of the radiator; the second die holder is arranged above the U-shaped radiator fin. The second die holder is provided with a pressing part and a junction part. The pressing part is at least extended with a pressure bar relative to the bending position of the U-shaped radiator fin, while the junction part which provides energy and generates high heat is arranged at the bottom of the pressure bar. When the pressing part gives pressure to the pressure bar, the U-shaped radiator is pressed at the top of the base plate. By the high heat generated by the junction part, the U-shaped radiator can be welded with the base plate quickly.