Steel structure beam mounting and positioning device

The invention discloses a steel structure beam mounting and positioning device, and relates to the technical field of steel structure beam mounting, the steel structure beam mounting and positioning device comprises a leveling assembly, an anti-inclination assembly, a centering roller and a sliding seat, the sliding seat is provided with a lifting frame used for lifting a transverse I-shaped beam, and a seat body is additionally provided with an adjusting rope acting on the transverse I-shaped beam; a pull rope distance adjusting mechanism is arranged between the seat body and each of the two ends of the adjusting rope, the centering roller is inserted into the inner side of the first sleeve, and a centering clamping piece for radially centering the centering roller is arranged between the seat body and the first sleeve. The leveling assemblies at the two ends are connected into a whole through the centering roller, and clamping and positioning of the centering roller are achieved through the centering clampi