Patent US3754357A successfully refreshed from Google Patents.
US3754357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for performing successive grinding operations on a workpiece
Assignee: Carmet Co
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Filing: 1971-04-28
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Granted: 1973-08-28
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Expires: 1991-04-28
Abstract
Abstract A method of performing successive grinding operations on a given workpiece by automatic profile grinding machine with indexing mechanism especially for contour grinding of relatively small parts such as tool inserts, comprised of a grinding wheel, work stations arranged around said grinding wheel, universal work feeding mechanism associated with each work station, individual cam mechanisms for each work station to index the grinding steps, electric and fluid pressure control mechanisms to control operation of the machine, work measuring mechanism and adjusting mechanism associated with the measuring mechanism to compensate for wear or out of balance condition of the grinding wheel.
Inventors
- 👤 O Schnellmann
- 👤 H Stier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:57
CPC Classifications
B; B23; B23Q; B23Q7/00; B23Q7/04; B24; B24B; B24B1/00; B24B3/00; B24B3/34; B24B3/343
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
114 words
A method for performing successive grinding operations upon a polygonal workpiece consisting of the steps of providing a magazine of identical workpieces, removing a single workpiece from the magazine, transporting said workpiece to a work area, holding said workpiece in a predetermined position, advancing and lowering said workpiece into contact with a grinding tool, rotating said grinding tool, thereafter rotating said workpiece from said predetermined position to a plurality of successive predetermined positions while in said work area in timed sequence to permit grinding of additional areas comprising the sides and apexes of said polygonal workpiece and removing said finish ground workpiece from said work area and finally discharging same from said holding means.
Claim 2
Independent Claim
114 words
A method for performing successive grinding operations upon a polygonal workpiece consisting of the steps of providing a magazine of identical workpieces, removing a single workpiece from the magazine, transporting said workpiece to a work area, holding said workpiece in a predetermined position, advancing and lowering said workpiece into contact with a grinding tool, rotating said grinding tool, thereafter rotating said workpiece from said predetermined position to a plurality of successive predetermined positions while in said work area in timed sequence to permit grinding of additional areas comprising the sides and apexes of said polygonal workpiece and removing said finish ground workpiece from said work area and finally discharging same from said holding means.
Claim 3
Dependent Claim
49 words
The method defined in claim 1, including the further steps of retaining said finish ground workpiece within said work area and measuring said finish ground workpiece prior to removal of the workpiece from said work area and discharging a measured completely finish ground workpiece from said work retaining means.
Claim 4
Dependent Claim
41 words
The method as defined in claim 2 further including the step of sensing measurement variations in the finish ground workpiece and advancing and lowering successive workpieces into contact with said grinding tool to compensate for variations sensed in said measurement step.
Claim 5
Independent Claim
112 words
A method for performing successive grinding operations upon the peripheral sides and corners of a polygonal workpiece blank comprising the steps of gripping a workpiece blank to remove same from a stack of said workpiece blanks, rotating said workpiece blank and transporting same to a work area, holding said workpiece blank to present one of said peripheral sides to a grinding surface of a grinding wheel, rotating said grinding wheel to grind said side and thereafter rotating said blank while in said work area in timed sequence to successively grind all of said peripheral sides and said corners of said polygonal workpiece blank before said blank is released from said holding means.
Claim 6
Independent Claim
112 words
A method for performing successive grinding operations upon the peripheral sides and corners of a polygonal workpiece blank comprising the steps of gripping a workpiece blank to remove same from a stack of said workpiece blanks, rotating said workpiece blank and transporting same to a work area, holding said workpiece blank to present one of said peripheral sides to a grinding surface of a grinding wheel, rotating said grinding wheel to grind said side and thereafter rotating said blank while in said work area in timed sequence to successively grind all of said peripheral sides and said corners of said polygonal workpiece blank before said blank is released from said holding means.
Claim 7
Dependent Claim
40 words
The method defined in claim 1, wherein the workpiece after contact with said grinding tool is moved linearly across said grinding surface in the direction of the axis of said blank and thereafter oscillating said blank across said grinding surface.
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) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |