High-precision positioning quality control die body based on spiral fault radioactive therapy system

The high-precision positioning quality control die body comprises a base, a quality control die body and a driving structure, the upper end face of the base is concaved inwards to form a concave face, and transmission pieces are arranged on the two opposite sides of the concave face respectively; the quality control film body is mounted on the transmission part corresponding to the concave surface, and the circumferential surface of the quality control film body is in contact with the transmission part and is far away from the concave surface; the driving structure is connected with the transmission part, and the driving structure is used for driving the transmission part to rotate forwards or reversely, so that the quality control die body rotates forwards or reversely around the axis direction of the quality control die body under the transmission of the transmission part. Compared with a traditional mode of manually adjusting the quality control die body, the method has the advantages that through mechanic