Fixture device for processing steel plate

The invention discloses a fixture device for processing a steel plate. Two groups of side vertical frames are symmetrically arranged on two sides, rotating blocks are fixedly installed on the inner walls of the side vertical frames on the two sides, the rotating blocks are rotatably installed at the shaft ends on two sides of a roller shaft in a matched mode, a conveying roller of an integrated structure is arranged on the roller shaft, and lower positioning screws are installed on the rotating blocks in a thread fit mode; a steel plate is arranged right above the conveying roller, and the lower positioning screws support and position the plate ends on the two sides of the lower surface of the steel plate; and upper positioning screws are correspondingly arranged right above the lower positioning screws, the upper positioning screws abut against and position the plate ends on the two sides of the upper surface of the steel plate in a pressing mode, the upper positioning screws are installed on threaded blocks