Centering device
AssigneeFranz Haimer Maschinenbau KG
InventorFranz Haimer
Life of this patent
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Abstract
A centering device for centrally chucking a rotary tool includes a socket on a mandrel of a tool holder. A tool arrangement includes a tool holder that has a mandrel, and including a rotary tool that is placed on the tool holder and includes a socket. In order to create a universal centering device that is easy to manufacture and can be used for a multitude of internal chucking units, and create a tool arrangement in which the rotary tool can be centered with high accuracy on the internal chucking unit, the centering device is designed as a closed centering ring which can be inserted between the rotary tool and the mandrel and which has an elastically deformable contour, and such a centering device is disposed between the mandrel and the rotary tool in the tool arrangement.
Claims4
A centering device for centric chucking of a milling cutter with a holder socket on a cylindrical mandrel of a tool holder, wherein the milling cutter is slidable over an entire length of the mandrel and is fastened on the tool holder by a locking screw, wherein the centering device is a closed centering ring insertable between the milling cutter and the mandrel, having an elastically deformable contour and a dimensional excess relative to the milling cutter such that the centering ring is elastically deformed inward, wherein the centering ring has at least one elastically movable external centering area, which is deformed radially inward under pressure from the outside when the milling cutter is slid over the mandrel, and wherein the centering ring is a cylindrical tube and the external centering area is formed by a ring-shaped bead that is curved radially outward,
- wherein the centering ring has, on one end, a ring-shaped collar for placement on the milling cutter and wherein the holder socket has a bevel corresponding to the collar of the centering ring.
A tool arrangement comprising:
- a tool holder with a mandrel;
- a milling cutter that is placed on the tool holder with a holder socket, the milling cutter being slid over an entire length of the mandrel and fastened on the tool holder by a locking screw;
- and
- a centering device inserted between the mandrel and the milling cutter, the centering device being a closed centering ring with an elastically deformable contour,
- wherein the centering ring has a dimensional excess relative to the milling cutter and is thus elastically deformed inward,
- the centering ring has at least one elastically movable external centering area, which is deformed radially inward under pressure from the outside when the milling cutter is slid over the mandrel, and
- the centering ring is a cylindrical tube and the external centering area is formed by a ring-shaped bead that is curved radially outward,
- wherein the centering ring has, on one end, a ring-shaped collar for placement on the milling cutter and wherein the holder socket has a bevel corresponding to the collar of the centering ring.
Dependencies are inferred from the claim text.