ROTARY ABRASIVE HEAD FOR FINISHING HOLES Russian patent published in 1999 - IPC

FIELD: machine-tool industry; construction of abrasive finishing machines and rigging for finishing holes. SUBSTANCE: abrasive head has body which is secured on machine spindle, with honing sticks located inside it. Honing sticks have spherical working surfaces. Honing sticks are mounted for radial motion and for rotation relative to axis of hole being finished and relative to axis perpendicular to it. Head is also provided with mechanism for performing above-mentioned motions of honing sticks. This mechanism is arranged in body and is made in form of two kinematically linked shafts: one shaft is so positioned that its axis lies along axis of hole being finished and other shaft is located perpendicularly to it. Honing sticks are made in form of spherical segments fitted on second shaft symmetrically relative to first one and connected with this shaft by means of threaded joint providing for their radial motion. EFFECT: extended technological capabilities of tool; increased productivity at retained quality. 5 dwg