Cutting tool assembly and cutting insert therefor

Details Cutting tool assembly and cutting insert therefor Cutting tool assembly and cutting insert therefor

B - Operations, Transporting

23

C

B23C 5/10 (2006.01)

Patent

CA 2360449

A cutting insert holder (12) for example ball nose end mill, and a cutting insert (14). The cutting insert holder (12) has a lower clamping jaw (24) resiliently connected to an upper clamping jaw (22). The upper clamping jaw is provided with two elongated spaced apart parallel grooves (40, 42). The cutting insert (14) has an upper surface (46) provided with two elongated spaced apart parallel ridges (70, 72). The cutting insert (14) is retained in the cutting insert holder (12) by means of a screw (15) which passes through a through bore (28) in the upper jaw (22) of the insert holder (12), through a through bore (51) in the cutting insert (14) and threadingly engaging into a threaded bore (31) in the lower clamping jaw (24), and the two elongated ridges (70, 72) in the upper surface (46) of the cutting insert (14) cooperate with the two elongated parallel grooves (40, 42) in the lower surface of the upper clamping jaw.

L'invention concerne un support (10) pour insert de coupe, par exemple une fraise à bout sphérique, et un insert (14) de coupe. Le porte-insert (10) comprend une mâchoire (2) de serrage inférieure reliée de manière élastique à une mâchoire (22) de serrage supérieure . La mâchoire supérieure comporte deux rainures (40, 42) parallèles espacées de forme allongée. L'insert (14) de coupe comporte une surface supérieure (46) présentant deux arêtes (70, 72) parallèles espacées de forme allongée. L'insert (14) de coupe est retenu dans le porte-insert (10) au moyen d'une vis (15) passant dans un alésage traversant (28) ménagé dans les mâchoires (22, 24) supérieure et inférieure du porte-insert (10) et dans un alésage traversant (51) ménagé dans l'insert (14) de coupe, et les deux arêtes allongées (70, 72) de la surface supérieure (46) de l'insert (14) de coupe coopèrent avec les deux rainures (40, 42) parallèles allongées que présente la surface inférieure de la mâchoire de serrage supérieure.

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