Pin welding limiting tool for IGBT (Insulated Gate Bipolar Translator) module

The utility model discloses a Pin welding limiting tool for an IGBT module, which comprises a limiting frame used for limiting and fixing a soldering lug and a DBC copper-clad ceramic substrate, a limiting plate used for limiting a plurality of Pins, a baffle plate used for preventing the Pins from falling off and a pressing plate used for carrying out counterweight welding on the Pins, and the limiting frame, the limiting plate and the pressing plate are sequentially fixed on the substrate of the IGBT module. The baffle is fixed to the bottom of the limiting plate. The limiting tool carries out limiting welding on the welding piece, the DBC copper-clad ceramic substrate and the Pin needle at the same time, the perpendicularity and the position degree of the Pin needle and the DBC copper-clad ceramic substrate after welding are guaranteed, pseudo soldering is prevented through balance weight welding, the uniformity of a welding layer is guaranteed, and then the transmission stability of the IGBT module is gua