Independent pressure spot welding device

The utility model relates to the technical field of spot welding devices, and discloses an independent pressurizing spot welding device which comprises a plurality of pressurizing structures, a sliding table driven by a driving structure to move, a plurality of first electrode pieces and a plurality of second electrode pieces, and the pressurizing structures, the first electrode pieces and the second electrode pieces are arranged in a one-to-one correspondence mode. The first electrode part and the pressurizing structure are fixedly arranged, and the second electrode part and the sliding tableare fixedly arranged; during electric welding operation, the sliding table moves downwards to drive the first electrode part to move downwards to abut against the connecting piece, and the second electrode part moves downwards to abut against the battery pack. The first electrode piece abuts against the connecting piece to form a first contact surface, the second electrode piece abuts against thebattery pack, a circuit i