Back to results
US 4,012,990 AGranted
Device for trimming and bevelling gear teeth
AssigneeRegie Nationale des Usines Renault
InventorAndre Wagner
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeRegie Nationale des Usines Renault
InventorAndre Wagner
Estimating the term…
A device for trimming, or removing burrs from, and bevelling, the teeth of gears and pinions comprises means for rotatably driving the gear to be treated, at least one milling head of which the cutter is adapted to engage the lateral edges of the gear teeth, a follower adapted to follow radially the tooth outline of the rotating gear, and means responsive to said follower for moving the cutter in a plane transversely to said gear in order to cause said cutter, in synchronism with the gear rotation and by temporary shape engagement in each hollow between teeth, to remove the burrs from, and bevel, the corresponding tooth edges, said means comprising a bell-crank lever rigid with said follower and co-acting with a slide controlling the milling head for converting the radial movement of said follower into a transverse movement of said milling head in relation to the wheel to be treated, this device comprising if desired two milling heads for treating simultaneously both faces of a same gear.
A device for removing the burrs from, and bevelling, gear teeth, comprising means for rotatably driving the gear to be treated, a first milling head mounted on a movable support, a milling cutter mounted for rotation in said milling head, a finger-shaped follower having a bearing surface to engage the periphery of the gear and to penetrate the space between adjacent gear teeth, whereby rotation of said gear imparts radial movement of said follower conforming to the peripheral outline of the gear, a bell-crank lever mounted on a pivot rigidly having a first arm connected to said follower, and a second arm rigid with said first arm and having means engaging a slide for movement therewith, said slide movable within a fixed guide, said slide having means engaging said movable support to move said milling head and said milling cutter transverse to said gear so that said milling cutter operates on said gear teeth.
Dependencies are inferred from the claim text.