Round hole chamfering mechanism of automobile die

The utility model discloses a round hole chamfering mechanism of an automobile die, and relates to the technical field of automobile dies. Two sliding holes are symmetrically formed in one surface of the workbench, an inverted-U-shaped support is in sliding fit between the inner walls of the two sliding holes, two sliding grooves are symmetrically formed in the inner wall of the inverted-U-shaped support, the inner walls of the sliding holes are slidably connected with clamping plates through sliding blocks, one side faces of the clamping plates are fixedly connected with telescopic rods, and a connecting plate is fixed to one end of each telescopic rod. And an abutting rod is fixed to one side face of the connecting plate, and one end of the abutting rod is slidably connected with the inner wall of the sliding groove. Through the design of the inverted-U-shaped support, the sliding grooves, the clamping plates, the abutting rods and the bottom plate, the inverted-U-shaped support descends, the two clamping p