A milling machine and a method of cutting a keyway

Details A milling machine and a method of cutting a keyway A milling machine and a method of cutting a keyway

B - Operations, Transporting

23

C

B23C 3/30 (2006.01) B23Q 9/00 (2006.01) B23Q 9/02 (2006.01)

Patent

CA 2299339

A keyway (12) is cut in a shaft (11) by means of a cutting unit (31) moved along a guideway (16, 17) on a base (14) that is clamped on the shaft. The cutting unit has a milling head (13) that is slimmer than the desired keyway. The keyway is cut in more than one sweep and the transverse position of the cutting unit is adjusted between the sweeps. In this way, narrow and wide keyways can be cut with the same precision and with one and the same comparatively small machine.

D'après cette invention, les rainures de clavettes (12) sont taillées dans un arbre (11) à l'aide d'une unité de coupe (31) se déplaçant le long d'un guide (16, 17) sur une base (14) qui est fixée sur ledit arbre. L'unité de coupe possède une fraise (13) qui est plus fine que les rainures de clavettes voulues. Les rainures sont taillées au cours de plusieurs allers et retours, tandis que la position transversale de l'unité de coupe est ajustée entre deux courses. Ce système permet de tailler des rainures étroites ou larges avec la même précision et à l'aide d'une seule et même machine qui possède une taille relativement réduite.

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