Saic GM U557E PHEV Battery PACK assembly line: The whole line adopts 6-axis robot automatic gluing and tightening, uses high-precision 2D and 3D visual positioning and detection, with AGV automatic conveying and MES management system, can achieve an annual output of 75,000 battery packs, and can be compatible with 3 different models of battery packs in line production and can achieve production data storage and traceability.