US3602209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dressing tool for forming and dressing helically ribbed grinding wheels
Assignee: Individual
•
Filing: 1968-07-16
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Granted: 1971-08-31
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Expires: 1988-07-16
Abstract
Abstract The invention provides a dressing tool for and a method of forming and dressing helically ribbed grinding wheels for grinding the tooth flanks of spur gears and other profiles that can be generated by rolling, wherein at least the tooth flanks which form the working surfaces of the dressing tool are provided with diamonds embedded in a matrix, and the addendum of the teeth of the dressing tool is about 1.2 x m and the dedendum is about 1.4 x m, whereas the addendum of a gearwheel that is to be ground is about 1.0 x m and the dedendum is about 1.2 x m, m being the module of the dressing tool and of the gear wheel that is to be ground with the helically ribbed grinding wheel.
Inventors
- 👤 Fritz Bocker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:31
CPC Classifications
B; B24; B24B; B24B53/00; B24B53/06; B24B53/08; B24B53/083; B24B53/12; B24B53/14
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
95 words
A dressing tool in the form of a spur gear for the production and dressing of helically ribbed grinding wheels of the globoidal type for grinding the tooth flanks of spur gears and other profiles that can be generated by rolling, wherein the surfaces of the tooth flanks which form the working surfaces of the dressing tool are provided with diamonds embedded in a matrix, the distribution of diamonds in consecutive tooth flanks facing in either direction being different, whereby the roughness of the surface of the helical ribs on the grinding wheel is minimized.
Claim 2
Dependent Claim
95 words
A dressing tool in the form of a spur gear for the production and dressing of helically ribbed grinding wheels of the globoidal type for grinding the tooth flanks of spur gears and other profiles that can be generated by rolling, wherein the surfaces of the tooth flanks which form the working surfaces of the dressing tool are provided with diamonds embedded in a matrix, the distribution of diamonds in consecutive tooth flanks facing in either direction being different, whereby the roughness of the surface of the helical ribs on the grinding wheel is minimized.
Claim 3
Dependent Claim
77 words
A dressing tool according to claim 1, wherein the addendum of the teeth of the dressing tool is about 1.2 X m and the dedendum is about 1.4 X m, whereas the addendum of a gearwheel that is to be ground is about 1.0 X m and the dedendum is about 1.2 X m, m being the module of the dressing tool and of the gearwheel that is to be ground with the helically ribbed grinding wheel
Claim 4
Independent Claim
141 words
A method of producing and dressing helically ribbed grinding wheelS of the globoidal type for grinding the tooth flanks of spur gears and other profiles which can be generated by a rolling action, comprising the steps of: a. rotating a gearwheellike dressing tool having diamonds embedded in the surface of its tooth flanks about an axis, b. meshing the dressing tool teeth with a helically ribbed grinding wheel such that only the planar surfaces of the tooth flanks contact the ribs of the grinding wheel, the axis of said grinding wheel being transverse to that of said dressing tool, and c. cutting the grain of the rib surfaces of the helically ribbed grinding wheel by rotating said grinding wheel and said dressing tool whereby the surfaces of the tooth flanks of the dressing tool dress the ribs of the grinding wheel.
Claim 5
Independent Claim
141 words
A method of producing and dressing helically ribbed grinding wheelS of the globoidal type for grinding the tooth flanks of spur gears and other profiles which can be generated by a rolling action, comprising the steps of: a. rotating a gearwheellike dressing tool having diamonds embedded in the surface of its tooth flanks about an axis, b. meshing the dressing tool teeth with a helically ribbed grinding wheel such that only the planar surfaces of the tooth flanks contact the ribs of the grinding wheel, the axis of said grinding wheel being transverse to that of said dressing tool, and c. cutting the grain of the rib surfaces of the helically ribbed grinding wheel by rotating said grinding wheel and said dressing tool whereby the surfaces of the tooth flanks of the dressing tool dress the ribs of the grinding wheel.
Claim 6
Dependent Claim
24 words
A method as claimed in claim 3, wherein the dressing tool is axially reciprocated across the helically ribbed grinding wheel during the dressing operation.
Claim 7
Dependent Claim
114 words
A method as claimed in claim 3, wherein a dressing tool is used the addendum of the teeth of which is about 1.2 X m and the dedendum of which is about 1.4 X m in relation to the addendum of about 1.0 X m and the dedendum of about 1.2 X m of a gearwheel that is to be ground, m being the module of the dressing tool and of the gearwheel that is to be ground with the helically ribbed grinding wheel, and a pertinent root line diameter of the helically ribbed grinding wheel is corrected by means of a diamonds carrying disc after the dressing of said helically ribbed grinding wheel.
Claim 8
Dependent Claim
89 words
A dressing tool as set forth in claim 1 wherein the diamonds are embedded in the tooth flanks in a geometrically defined pattern of distribution, the pattern on each consecutive tooth flank facing in either direction being located on the tooth flank at a different position with respect to the next adjacent tooth flank facing in the same direction, whereby there is an overlap in the action of the diamonds on each consecutive tooth flank minimizing the roughness of the surface of the helical ribs on the grinding wheel.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-30 | 1975-03-01 | 1975-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-30 | 1979-03-01 | 1979-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-30 | 1983-03-01 | 1983-08-31 | $7700.00 | Window Closed / Lapsed |