Gear hobbing cutter with non-constant whole depths
AssigneeEaton Corporation
InventorBenjamin S. Sheen
Life of this patent
Estimating the term…
Abstract
A gear hobbing apparatus for producing a gear from a blank according to one example of the present disclosure can include a hob, a first series of hob teeth and a second series of hob teeth. The hob can have a cylindrical hob body. The first series of hob teeth can extend from the cylindrical hob body and have a first whole depth. The second series of hob teeth can alternately extend from the cylindrical hob body with the first series of hob teeth and have a second whole depth. The first and second whole depths are distinct and configured to create a gear from the blank that has adjacent teeth having distinct outer diameters.
Claims16
A gear hobbing apparatus for producing a gear from a blank, the gear hobbing apparatus comprising:
- a hob having a cylindrical hob body;
- a first series of hob teeth extending from the cylindrical hob body and having a first whole depth;
- and
- a second series of hob teeth alternately extending from the cylindrical hob body with the first series of hob teeth and having a second whole depth;
- wherein the first and second whole depths are distinct and configured to create a gear from the blank that has adjacent teeth having distinct outer diameters.
A gear hobbing apparatus for producing a gear from a blank, the gear hobbing apparatus comprising:
- a hob having a cylindrical hob body and a cylindrical axis;
- a first tooth extending from the cylindrical hob body and having a first diameter measured from the cylindrical axis and providing a first whole depth;
- a second tooth adjacently extending from the cylindrical hob body from the first hob tooth and having a second diameter measured from the cylindrical axis and providing a second whole depth;
- and
- wherein the first and second diameters are equivalent, the first and second whole depths are distinct and wherein the hob is configured to create a gear from the blank that has adjacent teeth having distinct outer diameters.
A method of producing a gear from a gear blank having a gear blank axis, the method consisting of:
- providing a hob having (i) a cylindrical hob body having a hob axis, (ii) a first series of hob teeth extending from the cylindrical hob body and having a first whole depth and (iii) a second series of hob teeth alternately extending from the cylindrical hob body with the first series of hob teeth and having a second whole depth, wherein the first and second whole depths are distinct;
- translating the hob across a circumferential face of the gear blank wherein the hob and the gear blank rotate about their respective axes;
- and
- cutting the gear blank with the first and second series of hob teeth wherein the first and second hob teeth create a gear having adjacent teeth having distinct outer diameters.
Dependencies are inferred from the claim text.