Annular vibration heating furnace

The utility model discloses an annular vibration heating furnace, which relates to the technical field of vibration heating furnaces and comprises a mounting rack, a heating cavity is arranged in the mounting rack, and a heating furnace main body is arranged in the heating cavity; the two clamping pieces are connected to the mounting frame in a relatively sliding mode and located on the two sides of the heating cavity, two adjusting pieces are arranged on the mounting frame, and the two adjusting pieces drive the two clamping pieces to get close to each other or get away from each other; the first spring drives the first movable rod to be close to the heating cavity, the second spring drives the clamping plates to be close to the heating cavity, and when the size of an object is within the telescopic range of the first spring and the second spring, the two clamping plates can be driven by the first spring and the second spring to be in contact with the outer wall of the object; the device can clamp and fix ob