Steel bar binding auxiliary lifting tool and method for small prefabricated box girder

The invention discloses a reinforcing steel bar binding auxiliary lifting tool and method for a prefabricated small box girder, the lifting tool comprises a main body mechanism and a lifting mechanism, the main body mechanism comprises a support and a first empty groove, and the first empty groove is formed in one side of the interior of the support; the lifting mechanism comprises a scaffold board, a sliding block, a rack, a gear, a forward and reverse rotation motor and a supporting plate, the supporting plate is arranged on the side, provided with the first empty groove, of the support, the forward and reverse rotation motor is arranged at the top of the supporting plate, an output shaft of the forward and reverse rotation motor is connected with the gear, the gear is meshed with the rack, and the scaffold board is perpendicularly connected with the rack through the sliding block. The scaffold board is horizontally arranged in the first empty groove, and one end of the scaffold board is slidably connected