Curvature-adjustable steel bar bender

The curvature-adjustable steel bar bender comprises a machine box, a rotating platform, a steel bar limiting mechanism and a control console, a stand column is fixedly installed on the upper surface of the rotating platform, a center cylinder is connected to the outer wall of the stand column in a sleeved mode, and a bending cylinder is fixedly installed on the outer side of the upper surface of the rotating platform; an air cylinder, a guide rod, a motor assembly and a supporting cylinder are fixedly installed on the lower surface of an inner cavity of the case, a moving cylinder sleeving the outer wall of the guide rod is fixedly installed on the lower surface of the rotating platform, a driving wheel is fixedly installed at the output end of the motor assembly, a spline is arranged on the outer wall of the moving cylinder, and a driven wheel is rotationally assembled at the upper end of the supporting cylinder. According to the utility model, the structure of the central cylinder is designed, and the diame