BORING HEAD Russian patent published in 1994 - IPC

FIELD: machining. SUBSTANCE: head has body 1 carrying cutting members, radially movable supports 10 with flat end surfaces, guide keys 3 and a vibration damper. The vibration damper is mounted in axial hole 4 of body 1 and has thrust bush 9, plate springs 8, rings 7 with conical surfaces and two adjusting screws 6 with conical heads. Segments 5 are mounted in axial hole 4 of body 1, conical surfaces matching the conical surfaces of matching parts 6 and 7 are made on the ends of the segments. A flat used for engagement with radially movable support 10 is made on the outer cylindrical surface of each segment 5. EFFECT: improved structure. 2 cl, 2 dwg