PERC battery back film offset adjusting device

The utility model discloses a PERC battery back film offset adjusting device which comprises an adjusting operation table, the adjusting operation table comprises an adjusting table used for adjusting a battery piece back film and an operation table used for limiting the position of a battery piece, and a connecting supporting rod is arranged between the adjusting table and the operation table for connection. The adjusting table is provided with an adjusting unit used for adjusting the back film of the battery piece in a segmented mode, the adjusting unit comprises a supporting table, the operating table is provided with a limiting unit used for limiting and fixing the battery piece and the back film of the battery piece at the same time, and the limiting unit comprises a bearing table used for supporting the battery piece. According to the invention, the laminating position of the back film and the battery piece is detected in real time, the stretching deviation angle of the back film is accurately adjusted,