Collet and lock nut
AssigneeKennametal Inc.
InventorsRobert E. Oshnock, Michael R. McCormick, Robert A. Erickson
Life of this patent
Estimating the term…
Abstract
An assembly generally comprises a collet for receiving a cutting tool shank and a lock nut for creating a gripping force between the collet and the cutting tool shank. The collet has a nose and the lock nut has a front face that is substantially flush with the nose. The lock nut further has a fastening element that mates with a fastening element of a coolant sealing ring for attaching the coolant sealing ring to the lock nut so that the coolant sealing ring may be detached from the lock nut.
Claims14
A tool-holding chuck assembly comprising:
- a collet for receiving a cutting tool shank having at least one coolant access hole therethrough, the collet having a nose;
- a lock nut for creating a gripping force between the collet and the cutting tool shank, the lock nut having an outer front face that is substantially flush with the nose of the collet;
- a coolant sealing ring attached to the lock nut so that the coolant sealing ring may be detached from the lock nut, the coolant sealing ring being structured to permit the tool shank to extend therethrough, wherein the coolant sealing ring comprises:
- a sealing disk through which the tool shank may extend and a sealing disk cap for receiving the sealing disk;
- a first fluid tight seal between the sealing disk cap and the lock nut;
- a second fluid tight seal between the sealing disk cap and the sealing disk;
- and a third fluid tight seal carried by the sealing disk that is adapted to engage the tool shank.
A tool-holding chuck assembly comprising:
- a collet comprising a tubular collet body having a nose and defining a cylindrically shaped passageway for receiving a tool shank, the passageway being adapted to direct pressurized coolant to coolant access holes in the tool shank;
- a lock nut formed from an annular housing having an outer front face that is substantially flush with the nose of the collet body;
- a coolant sealing ring attached to the annular housing so that the coolant sealing ring is detachable from the annular housing, wherein the coolant sealing ring comprises:
- a sealing disk and a sealing disk cap for receiving the sealing disk;
- a first fluid tight seal provided between the annular housing and the coolant sealing ring;
- a second fluid tight seal for providing a seal between the cutting tool shank and the coolant sealing ring;
- and a third fluid tight seal between the sealing disk and the sealing disk cap, the coolant sealing ring being attached to the annular housing by the sealing disk cap with the first fluid tight seal therebetween.
A tool-holding chuck assembly comprising:
- a collet for receiving a cutting tool shank having at least one coolant access hole therethrough, the toilet having a nose;
- and a lock nut for creating a gripping force between the collet and the cutting tool shank, the lock nut having an outer front face that is substantially flush with the nose of the collet, the lock nut further having a fastening element that mates with a fastening element of a coolant sealing ring for attaching the coolant sealing ring to the lock nut so that the coolant sealing ring may be detached from the locknut, wherein the coolant sealing ring comprises:
- a sealing disk through which the tool shank may extend and a sealing disk cap for receiving the sealing disk;
- a first fluid tight seal between the sealing disk cap and the lock nut;
- a second fluid tight seal between the sealing disk cap and the sealing disk;
- and a third fluid tight seal carried by the sealing disk that is adapted to engage the tool shank.
Dependencies are inferred from the claim text.