Fixing clamp for automobile hub production

The invention relates to the technical field of automobile hub machining, and discloses an automobile hub production fixing clamp which comprises a circular frame, sliding grooves are formed in the four corners of the inner wall of the circular frame, arc-shaped plates are fixed to the positions, located on the two sides of the sliding grooves, of the inner wall of the circular frame, and inner screw grooves are formed in the side walls, close to the sliding grooves, of the arc-shaped plates. The arc-shaped plates are in threaded connection with first nuts through the inner threaded grooves correspondingly, and extending sleeves are fixed to the ends, away from the inner wall of the circular frame, of the first nuts correspondingly. And a first nut is in threaded connection with a first outer threaded tooth on the outer wall of the abutting rod, and the outer wall of the first nut is in threaded connection with inner threaded grooves of the arc-shaped plates on the two sides, so that the position, abutting ag