Brake hub positioning clamp tool

The utility model provides a brake hub positioning clamp tool which comprises a chuck expansion center, a chuck body, a claw base, a claw, a spring and a spring base. The chuck expansion center is installed at the center of the chuck body. A groove for installing the claw base is formed in the upper portion of the chuck body. The claw base is arranged in the groove in a six-equal-segment mode and makes contact with the chuck expansion center. The claw is fixed to the spring base through a bolt, wherein the spring base is internally provided with the spring. A groove for installing the bolt is formed in the claw so that the position of the bolt in the groove can be adjusted. The brake hub positioning clamp tool has the advantages that the claw is fixed to the spring base through the bolt, the spring base is internally provided with the spring, the distance between the claw and the chuck expansion center is adjusted through the position of the bolt, and reset can be achieved through the spring.