Welding positioning device and battery cell manufacturing equipment

The utility model provides a welding positioning device and battery cell manufacturing equipment, and relates to the technical field of batteries. The welding positioning device comprises a bearing main body, a nitrogen introduction assembly, a dust collection assembly and a plurality of welding pressure head modules. A mounting channel is defined by the multiple welding pressure head modules on the bearing main body; the welding pressure head module is provided with nitrogen connectors, and the multiple nitrogen connectors are all arranged in the mounting channel. The welding pressure head module is further provided with a dust collection connector. The nitrogen introduction assembly is arranged on the bearing main body; the nitrogen leading-in assembly is provided with a gas guide pipe, and the gas guide pipe penetrates through the mounting channel; and a plurality of branch pipes of the gas guide pipe are respectively connected with a plurality of nitrogen joints. The dust collection assembly is arranged o