BORING MACHINE TOOL Russian patent published in 2002 - IPC

FIELD: machine engineering, namely, working inner surfaces of elongated articles, such as hydraulic cylinders. SUBSTANCE: machine tool includes housing; guides; sledge mounted in guides for feeding article; vibration suppressor designed for guiding quick-change cutting tool and mounted with possibility of sliding motion in guides; hydraulic cylinder mounted on spindle of headstock; and shaft. In order to enhance quality degree of worked inner surface of article due to its rigid fixation and reliable discharging of waste at boring process, machine tool is provided with stopper having hydraulic cylinder rigidly joined with vibration suppressor by means of tie rods having members for preliminary supporting article; closure mounted on said tie rods with possibility of reciprocation motion and joined with hydraulic cylinder of stopper; stay mounted in shaft, joined with hydraulic cylinder and designed for fixation of quick-change cutting tool. Shaft is mounted on spindle of headstock. Vibration suppressor is provided with chamber, guiding sleeve for placing quick-change cutting tool in it, opening for supplying liquid to working zone and centering stop. Closure has centering stop and it is in the form of chamber for placing quick-change cutting tool after it leaves article; said chamber has opening for discharging waste material and hinged lid with lock. EFFECT: enlarged manufacturing possibilities of machine tool, high quality of bored surface. 3 dwg