Tool holder damping system
OwnerHarold D. Cookinventor
Life of this patent
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Abstract
A tool holder for use in a rotating spindle of a milling machine. The tool holder comprises a conically tapered shank portion for insertion into the spindle and a cutting tool mounting portion. Disposed between the shank and mounting portions is a flange portion. The flange portion includes a continuous channel formed therein which circumvents the shank portion and is adapted to accommodate a dampening member. The dampening member is compressible between the flange portion and the spindle when the tool holder is inserted into the spindle, and is adapted to eliminate harmonic resonance attributable to the use of the tool holder with a cutting tool.
Claims14
A method for securing a tool holder to a spindle, the method comprising the steps of:
- providing a threaded aperture within a shank portion of the tool holder;
- heating the shank portion of the tool holder to enlarge the threaded aperture;
- threading a threaded end portion of an extension member into the heated shank portion;
- and cooling the shank portion.
A method for securing a tool holder to a spindle, the method comprising the steps of:
- providing an aperture within a shank portion of the tool holder;
- providing a dampening member within a groove in the tool holder;
- heating the shank portion of the tool holder to enlarge the aperture;
- inserting an end portion of an extension member into the heated shank portion;
- and cooling the shank portion.
Dependencies are inferred from the claim text.