Supporting clamp for numerical control machine tool

The utility model provides a supporting clamp for a numerical control machine tool, which comprises a working platform, supporting bases, a protective shell, a clamp body, a sliding rod, a driving motor, a ball screw, a moving block, a round hole and a ball nut, the supporting bases are welded on the left side and the right side of the upper end face of the working platform, and a supporting plate is arranged in the middle of the upper end face of the working platform. Supporting legs are welded to the lower end face of the working platform, the protective shell is arranged on the upper end face of the supporting base, circular holes are formed in the left end face and the right end face of the protective shell, a moving block is arranged on the lower end face in the protective shell, and a driving motor is fixed to the lower end face in the protective shell; and a ball screw is fixed to the output end of the driving motor and penetrates out of a ball nut, a sliding rod is fixed between the moving block and t