B - Operations – Transporting – 23 – B
Patent
B - Operations, Transporting
23
B
B23B 31/117 (2006.01) B23B 31/02 (2006.01) B23B 51/00 (2006.01)
Patent
CA 2699592
A tool holder (100, 200, 300, 400, 500) includes a shank (12) including a tool holder portion (12a) and a central bore (12d) for accommodating a cutting tool (14), and a first shrink fit sleeve (102, 202, 302, 402, 502) disposed about the tool holder portion (12a) of the shank (12). An application of heat to the tool holder causes the tool holder portion and the first shrink fit sleeve (102, 202, 302, 402, 502) to expand outwardly, and the removal of heat will cause the tool holder portion and the first shrink fit sleeve to contract inwardly to rigidly maintain the cutting tool (14) within the tool holder by shrink fit. The tool holder (400, 500) may also include a second shrink fit sleeve (404, 504) disposed about the first shrink fit sleeve (402, 502) to provide increased torque capability.
La présente invention concerne un porte-outil (100, 200, 300, 400, 500) comportant une queue (12) comprenant une partie porte-outil (12a) et un alésage central (12d) pour recevoir un outil de coupe (14), et un premier manchon emmanché à chaud (102, 202, 302, 402, 502) disposé autour de la partie porte-outil (12a) de la queue (12). Une application de chaleur au porte-outil entraîne la dilatation vers l'extérieur de la partie porte-outil et du premier manchon emmanché à chaud (102, 202, 302, 402, 502), et le retrait de chaleur va entraîner la contraction vers l'intérieur de la partie porte-outil et du premier manchon emmanché à chaud pour le maintien rigide de l'outil de coupe (14) à l'intérieur du porte-outil par calage à retrait. Le porte-outil (400, 500) peut également comporter un second manchon emmanché à chaud (404, 504) disposé autour du premier manchon emmanché à chaud (402, 502) pour assurer une capacité de couple améliorée.
Filho Frota de Souza Ruy
Oshnock Robert E.
Kennametal Inc.
Smart & Biggar
LandOfFree
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