Steel shell battery cell shell welding positioning method and battery

The invention provides a steel shell battery cell shell welding positioning method. The method comprises the following steps that S1, a frame body is placed on a positioning clamp to be clamped and fixed; s2, the cover plate is covered with the frame body, and a certain gap is reserved in the edge; s3, the gap is shot through vision, and the gap is judged; s4, a visual judgment result is transmitted to the servo mechanism; s5, the servo mechanism generates a command and a stroke of a positioning pressing plate according to a visual judgment result, and the positioning pressing plate is pushed/pulled; and S6, the positioning pressing plate conducts positioning correction on the product through the push-pull action and the stroke. According to the welding and positioning method for the steel shell battery cell shell, the positioning and correcting precision of the welding clamp can be improved, product deformation can be accurately corrected, and the qualified rate of welded products is increased. 本发明提供一种钢壳电芯壳体