Steel part fixing tool

The invention provides a novel fixing tool. The fixing tool comprises a base, a disc, a rotating device and an i-shaped steel fixing device; the rotating device comprises a driving gear, a driven gear, a rotating shaft and a hand wheel, wherein the driven gear is fixed in the center of the disc and is rotationally arranged on the base through the rotating shaft, and the driving gear is driven by the hand wheel; the i-shaped steel fixing device comprises an air cylinder assembly arranged symmetrically left and right, wherein the air cylinder assembly comprises a first air cylinder, a second aircylinder and a third air cylinder, the first air cylinder is horizontally fixed on the disc, a clamping block is fixed on output shaft of the first air cylinder, and the second air cylinder and the third air cylinder are symmetrical and are perpendicular to the first air cylinder and are fixed on the upper side face and the lower side face of the clamping block. According to the steel part fixingtool, the i-steel can be