Tool holder
AssigneeJ. Kuhn GmbH Co.
InventorFrank Johne
Life of this patent
Estimating the term…
Abstract
A tool holder (1) which can be inserted into the main spindle of a machine-tool is provided on the front region of its shank portion (2) with a cylindrical guide portion (11) for a tapered ring (12) which can be braced elastically and on the rear region of the shank portion (2) there is provided a second cylindrical guide portion (12) for a second tapered ring (14) which can also be braced elastically. At least one of the tapered rings (13, 14) is advantageously provided with a longitudinal slot or partial slots. A flange portion (3) is provided on the front portion which is applied against the front end face (27) of the main spindle (5) .
Claims9
In a tool holder having a shank portion insertable into a conical receiving part of a main spindle of a machine tool for clamping therein, a flange portion forming a front extension of the shank portion, a face on the front portion for bearing against the front face of the main spindle, a cylindrical guide on the front region of the shank portion, a tapered ring on the front portion of the shank portion engageable with the surface of the conical receiving part of the main spindle, and an elastic bearing between the flange portion and the tapered ring, the improvement comprising:
- a rear region on the shank portion within the conical receiving part of the main spindle;
- a second cylindrical guide on said rear region of the shank portion for engagement with the surface of the conical receiving part of the main spindle at a position spaced from the first-mentioned tapered ring;
- and
- a second elastic bearing between said shank portion and said second tapered ring.
Dependencies are inferred from the claim text.