Wafer broaching tool
AssigneeNew Venture Gear, Inc.
InventorBrian M. Fitzgerald
Life of this patent
Estimating the term…
Abstract
A finish broaching tool for finish cutting helical splines on the interior of an annular workpiece has a multiplicity of groups of circumferentially disposed teeth. Each group of circumferentially disposed teeth is formed on an individual wafer adapted to be mounted on the trailing end of a conventional broaching bar. The teeth of each wafer are formed on a predetermined helical angle and are adapted to helically align with the teeth of the other wafers. The wafers are sized so as to provide contact between the teeth of two or more wafers throughout substantially the entire finish broaching process.
Claims8
A cylindrical finish broaching tool adapted to cooperate with a broach bar for finish cutting splines on the interior of a hollow annular workpiece, said cylindrical finish broaching tool comprising:
- a cylindrical sleeve adapted to mount on said broach bar, said sleeve having a lead end and a trailing end, said trailing end being integrally formed to include a flange extending radially therefrom;
- a plurality of toroidal cutting wafers removably mounted on said sleeve, each cutting wafer having peripherally thereon a plurality of cutting teeth disposed such that teeth on adjacent cutting wafers form a corresponding plurality of rows of teeth;
- a toroidal lead wafer removably mounted on said sleeve, said lead wafer having peripherally thereon a plurality of lead teeth;
- and
- means for limiting rotational movement of each of said plurality of cutting wafers and said lead wafer with respect to said sleeve.
Dependencies are inferred from the claim text.