Copper foil lead welding device

The utility model discloses a copper foil lead welding device which comprises a rack, a transformer installation jig and a lead mechanism. Wherein the transformer installation jig is rotatably arranged on the rack, the transformer installation jig is provided with an installation station, and receding notches are formed in the upper inner wall and the lower inner wall of the installation station in a penetrating mode; and the wire guide mechanism is arranged on the rack in a manner of moving up and down and is positioned right above the transformer mounting jig. A copper foil lead penetrates through a wire guide mechanism; therefore, the length of the copper foil lead conveyed each time is relatively fixed; the transformer installation jig is simple in structure and convenient and flexibleto operate, working hours are saved, the rejection rate of products is reduced, it is guaranteed that welding spots of copper foil leads are smooth and free of pseudo soldering, solder skips and solder balls, flying wire sle