Construction steel bar cutting device

The utility model relates to a building steel bar cutting device which comprises a cutting machine body and a conveying mechanism, the side of the cutting machine body is fixedly connected with a positioning sleeve, the positioning sleeve is connected with the end of the conveying mechanism through a bolt, and supporting legs are arranged at the bottom of the conveying mechanism. A limiting frame is fixedly installed on the edge side of the top of the conveying mechanism, a side positioning wheel set is fixedly connected to the end of a limiting rod, a driving arm is installed on the upper surface of the side positioning wheel set, a rotating rod is connected to the middle of the top of the limiting frame through a bearing, and a bevel gear is fixedly arranged at the lower end of the rotating rod; and the inner wall of the limiting frame on the side of the rotating rod is rotationally connected with a screw rod. According to the building steel bar cutting-off device, steel bars with different diameters can be