Welding positioning tool and battery production line

The utility model relates to a welding positioning tool and a battery production line, and the welding positioning tool comprises at least one welding carrier which comprises a pressing groove, a positioning groove and a hollow area, the hollow area is located between the positioning groove and the pressing groove, and the positioning groove is used for placing a main body part of an electrode assembly; the pressing groove is used for placing one part of the switching piece, and the hollow area is used for placing the other part of the switching piece and a tab of the electrode assembly; the rack comprises a working panel and two trays; the two trays are distributed on the two sides of the working panel; the two trays and the working panel are all used for placing welding carriers; in the vertical direction, the vertical distance from the tray to the working panel can be adjusted; the welding carrier comprises a carrier plate and a pressing plate, and the pressing plate is movably connected with the carrier plate and can cover the pressing groove. The welding positioning tool and the battery production line have the advantage of being suitable for a limited space.