Processing tool
AssigneeSugino Machine Limited
InventorsYusuke Yanagihara, Mitsuru Muto
Life of this patent
Estimating the term…
Abstract
A deburring tool includes a body including a cylinder chamber having a tool holder holding hole, and an anti-rotation body holding hole; a tool holder having an anti-rotation groove and disposed in the cylinder chamber to reciprocate in the cylinder chamber; a first elastic body disposed inside the cylinder chamber to urge the tool holder toward a distal end; a cover disposed outside the body to reciprocate between a detaching position and a processing position, the cover including, a pressing surface that covers the anti-rotation body holding hole at the processing position, and a relief portion; and an anti-rotation body accommodated in the relief portion when the cover is positioned at the detaching position and the tool holder is pulled from the tool holder holding hole.
Claims12
A processing tool, comprising:
- a body extending along a body center axis, the body including
- a cylinder chamber located inside the body and extending along the body center axis, the cylinder chamber having a tool holder holding hole having an opening toward a distal end, and
- an anti-rotation body holding hole penetrating the body in a radial direction;
- a tool holder having an anti-rotation groove formed on an outer peripheral of the tool holder, the tool holder disposed in the cylinder chamber, the tool holder configured to reciprocate in the cylinder chamber;
- a first elastic body disposed inside the cylinder chamber, the first elastic body configured to urge the tool holder toward the distal end;
- a cover disposed outside the body, the cover configured to reciprocate along the body center axis between a detaching position and a processing position, the cover including,
- a pressing surface configured to cover the anti-rotation body holding hole at the processing position, and
- a relief portion recessed from an inner side of the cover to radially outward;
- and
- an anti-rotation body held in the anti-rotation body holding hole, the anti-rotation body configured to move between the anti-rotation groove and the pressing surface, the anti-rotation body configured to be accommodated in the relief portion when the cover is positioned at the detaching position and the tool holder is pulled from the tool holder holding hole;
- wherein sidewalls of the anti-rotation body holding hole are inclined in a rotation direction of the processing tool with respect to a straight line that defines the radial direction;
- and
- wherein the anti-rotation body has a spherical outer surface and the anti-rotation body holding hole has an anti-rotation body holding surface therein with an anti-rotation body retaining portion, the anti-rotation body retaining portion having a partially spherical surface that conforms to the spherical outer surface of the anti-rotation body such that, when the cover is positioned at the detaching position and the tool holder is pulled from the tool holder holding hole, the inclined sidewalls of the anti-rotation body holding hole and the partially spherical surface of the anti-rotation body retaining portion prevent the anti-rotation body from falling into the body.
Dependencies are inferred from the claim text.