Metal casting tapping device for brake hub

The utility model discloses a metal casting tapping device for a brake hub, and relates to the technical field of casting machining. A mounting box is fixedly connected to the top of the fixed bottom plate, a rotary adjusting mechanism is assembled in the mounting box, a fixed clamping mechanism is assembled to the top of the rotary adjusting mechanism and used for clamping and fixing a brake hub to be tapped, and a supporting frame is fixedly connected to one end of the fixed bottom plate. Through the structural design of the rotation adjusting mechanism and the displacement adjusting mechanism, the tapping position can be adjusted according to needs in the using process, tapping can be conducted on the same circumferential position according to needs, the accuracy and adaptability of the tapping position are greatly improved, and through the structural design of the fixed clamping mechanism, the tapping position can be adjusted according to the requirements. The tapping device can clamp the brake hub from f