Vibration reduction cutter bar mounting cutter holder

The vibration reduction cutter bar installation cutter holder comprises a cutter holder body, hexagon head bolts and connecting rods, a disc-shaped boss is arranged at the rear end of the cutter holder body, round holes are machined in the inner sides of the two bottom corners of the disc-shaped boss respectively, and the two bolts penetrate through the front end of the disc-shaped boss and are connected with the two connecting rods located at the rear end of the disc-shaped boss respectively; a protruding structure is arranged in the center of the rear end of the disc-shaped boss, and the protruding structure and the two connecting rods are jointly fixed to three tool positions of the horizontal tool rest. A vibration reduction cutter bar mounting hole is machined in the cutter holder body in the axis direction, and the inner diameter of the vibration reduction cutter bar mounting hole is in clearance fit with the outer diameter of the vibration reduction cutter bar. A cooling liquid channel is formed in the