Steel plate flattening device

The utility model relates to the field of flattening devices, and discloses a steel plate flattening device which comprises a bottom plate, a first side plate and a second side plate are fixedly connected to the two sides of the front end of the upper surface of the bottom plate respectively, and a first servo motor is arranged on the outer wall of one side of the first side plate. The output end of the first servo motor penetrates through the first side plate and is fixedly connected with a driving roller, and a lifting groove is formed in the outer wall of one side of the second side plate. Compared with an existing flattening device, the flattening device has the advantages that the third servo motor is arranged, the third servo motor drives the driving gear to rotate, the driving gear is meshed with the driven gears on the two sides, and then the transmission gears are meshed with each other, so that the grinding discs rotate; and then the bearing plate is lowered through the electric telescopic rod, so t