Tin soldering machine for PCB (printed circuit board) of battery module

The utility model discloses a soldering machine for a battery module PCB, which comprises a carrying disc, an automatic dust removal assembly, a plurality of groups of automatic spot welding assemblies and an automatic blanking assembly, a positioning carrier is arranged on the carrying disc, limiting blocks are arranged at four corners of the positioning carrier, a battery positioning groove is formed in the center of the positioning carrier, and a battery and the PCB are placed in the battery positioning groove. The battery is matched with the fixed end of the PCB in a penetrating and sleeving mode, a battery wire is matched with the power connection end of the PCB in a penetrating and sleeving mode, the automatic dust removal assembly comprises a first horizontal electric sliding table, a first vertical electric sliding table, a pressurization air cylinder, an air blowing pipe, a control valve and an air blowing nozzle, and the automatic spot welding assembly comprises a second horizontal electric sliding