B - Operations – Transporting – 23 – D
Patent
B - Operations, Transporting
23
D
B23D 41/00 (2006.01) B23B 51/05 (2006.01) B27G 15/00 (2006.01)
Patent
CA 2191176
A boring apparatus which includes a rotatable cutting head used to cut a hole in a workpiece. The cutting head is mounted on an axially movable support, and is rotatable about and reciprocally movable along the axis between a forward cutting position, to engage and cut the workpiece, and a rearward position spaced from the workpiece. Cutting is performed by a cutting blade which is spaced radially from the axis, and which is movable relative to the rest of the cutting head by a blade advance mechanism. During cutting operation, the blade advance mechanisms move cutting blade both forwardly and radially inwardly through the workpiece wall, in the same direction at which the blade is inclined. The hole is thus formed by lowering the cutting head and then rotating the cutting blade as the blade advance mechanism moves the blade at an angle through the workpiece. Both the resulting hole and waste plug cut from the workpiece produced by the angled movement of the blade have complementary tapered edge portions, with the result that the plug will have a portion with a diameter which is larger than the smallest diameter portion of the hole.
Outil à tête de coupe rotative, servant à percer un trou dans une pièce. La tête de coupe est montée sur un support se déplaçant dans le sens axial, et tourne autour et se déplace réciproquement le long d'un axe compris entre une position avant (position de coupe), où elle s'engage dans la pièce pour exécuter la coupe, et une position arrière, plus éloignée de la pièce. La coupe est réalisée par une lame située à une certaine distance de l'axe, et mue par un mécanisme d'avance. Pendant l'opération de coupe, ce mécanisme force la lame radialement vers l'avant pour qu'elle pénètre dans la paroi de la pièce dans le sens d'inclinaison de la lame. Le trou percé et le bouchon de matériau enlevé on une forme conique correspondante, le bouchon comportant une portion d'un diamètre supérieur à celui de la portion du trou ayant le plus petit diamètre.
Pupovac Rade
Weber Wolfgang
Kvt Technologies Inc.
Riches Mckenzie & Herbert Llp
LandOfFree
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