Accurate shearing machine capable of preventing workpiece from deviating

The utility model discloses a precise shearing machine capable of preventing a workpiece from deviating, which comprises a rack, an operation box, a stand column, a cross rod, an air cylinder, a cutting blade, a cutting groove, a sliding groove, a motor, a screw rod, a limiting ring, a sliding rod, a moving plate, a connecting plate and a clamping plate, the bottom of the stand column is fixedly installed on the top of the machine frame in a welded mode, the stand column is located in the length direction of the operation box, the top of the stand column is fixedly connected with one end of the transverse rod in a welded mode, a piston rod of the air cylinder is fixedly connected with the cutting blade in a welded mode, and the cutting groove is formed in the top of the operation box. The cutting device is simple in structure, convenient to operate and high in practicability, a workpiece is firmly clamped by the clamping plates, the problem that the workpiece deviates due to uneven stress in the cutting proce