Rotary cutting tool
AssigneeFiziko-Tekhnichesky Institut Akademii Nauk Belorusskoi SSR
InventorsEvgeny I. Morgunsky, Valery A. Sidorenko, Vladimir A. Plotnikov
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Abstract
The disclosed cutting-tool comprises a stepped-diameter arbor with bearings supporting rotatably thereon a holder carrying the cup-shaped cutting bit. In accordance with the invention, the holder is made up of a hollow shaft and a sleeve encompassing this shaft. The sleeve is journalled adjacent to the cutting bit in one of the bearings located about the stepped-diameter arbor, said arbor having a central bore. The other bearing is accommodated within the central-bore and supports the hollow shaft likewise accommodated in the central bore of the arbor. Owing to the disclosed structure of the holder and its interconnection with the stepped-diameter arbor, sufficient rigidity of the cutting-tool, matched by its compact size is ensured.
Claims2
A rotary cutting-tool comprising:
- a stepped-diameter arbor having a central bore;
- a bearing accommodated on said stepped-diameter arbor;
- another bearing accommodated within the central bore of said stepped-diameter arbor;
- a cup-shaped cutting bit;
- a holder carrying said cup-shaped cutting bit and comprising a hollow shaft accommodated in the central bore of said stepped-diameter arbor, said shaft being journalled in said bearing accommodated within the central bore of said stepped-diameter arbor, and a sleeve encompassing said hollow shaft and journalled adjacent to said cutting bit in said bearing accommodated on said stepped-diameter arbor.
Dependencies are inferred from the claim text.