Patent US3715841A successfully refreshed from Google Patents.
US3715841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic profile grinding machine with an indexing mechanism
Assignee: Carmet Co
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Filing: 1971-04-28
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Granted: 1973-02-13
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Expires: 1991-04-28
Abstract
Abstract An 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 Schnellman
- 👤 H Stier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:58
CPC Classifications
B; B24; B24B; B24B41/00; B24B41/06; B24B41/066; B24B17/00; B24B3/00; B24B3/34; B24B3/343
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
231 words
An automatic control system for a power operated grinding machine having a wOrk area, workpiece grinding means in said work area, workpiece storage and feeding means, workpiece holder and positioning means and workpiece gaging means adjacent the work area for feeding the work pieces to said grinding means, grinding said workpieces to a predetermined finished shape and thereafter gaging at least certain ones of said workpieces for conformity to said predetermined shape prior to removal of said workpiece from said work area, said control system being operative to control operation of said means in selected order and comprising a supply of fluid under pressure and a plurality of fluid motors operatively connected to said workpiece and gaging means storage and feeding means; said workpiece holding and positioning means, said workpiece grinding means and said workpiece gaging means; control valve means between each of said fluid motors and said supply of fluid under pressure; electric operator means regulating said control valve means to cause said workpiece holding and transfer means to move a workpiece to said workpiece holder means, thereafter to engage said workpiece holder with said workpiece and to position said workpiece for grinding by said grinding means and finally to move said gaging means into gaging engagement with selected ones of said workpiece while staying the operation of said transfer means until said workpiece is released from said workpiece holder.
Claim 2
Dependent Claim
231 words
An automatic control system for a power operated grinding machine having a wOrk area, workpiece grinding means in said work area, workpiece storage and feeding means, workpiece holder and positioning means and workpiece gaging means adjacent the work area for feeding the work pieces to said grinding means, grinding said workpieces to a predetermined finished shape and thereafter gaging at least certain ones of said workpieces for conformity to said predetermined shape prior to removal of said workpiece from said work area, said control system being operative to control operation of said means in selected order and comprising a supply of fluid under pressure and a plurality of fluid motors operatively connected to said workpiece and gaging means storage and feeding means; said workpiece holding and positioning means, said workpiece grinding means and said workpiece gaging means; control valve means between each of said fluid motors and said supply of fluid under pressure; electric operator means regulating said control valve means to cause said workpiece holding and transfer means to move a workpiece to said workpiece holder means, thereafter to engage said workpiece holder with said workpiece and to position said workpiece for grinding by said grinding means and finally to move said gaging means into gaging engagement with selected ones of said workpiece while staying the operation of said transfer means until said workpiece is released from said workpiece holder.
Claim 3
Dependent Claim
231 words
An automatic control system for a power operated grinding machine having a wOrk area, workpiece grinding means in said work area, workpiece storage and feeding means, workpiece holder and positioning means and workpiece gaging means adjacent the work area for feeding the work pieces to said grinding means, grinding said workpieces to a predetermined finished shape and thereafter gaging at least certain ones of said workpieces for conformity to said predetermined shape prior to removal of said workpiece from said work area, said control system being operative to control operation of said means in selected order and comprising a supply of fluid under pressure and a plurality of fluid motors operatively connected to said workpiece and gaging means storage and feeding means; said workpiece holding and positioning means, said workpiece grinding means and said workpiece gaging means; control valve means between each of said fluid motors and said supply of fluid under pressure; electric operator means regulating said control valve means to cause said workpiece holding and transfer means to move a workpiece to said workpiece holder means, thereafter to engage said workpiece holder with said workpiece and to position said workpiece for grinding by said grinding means and finally to move said gaging means into gaging engagement with selected ones of said workpiece while staying the operation of said transfer means until said workpiece is released from said workpiece holder.
Claim 4
Dependent Claim
231 words
An automatic control system for a power operated grinding machine having a wOrk area, workpiece grinding means in said work area, workpiece storage and feeding means, workpiece holder and positioning means and workpiece gaging means adjacent the work area for feeding the work pieces to said grinding means, grinding said workpieces to a predetermined finished shape and thereafter gaging at least certain ones of said workpieces for conformity to said predetermined shape prior to removal of said workpiece from said work area, said control system being operative to control operation of said means in selected order and comprising a supply of fluid under pressure and a plurality of fluid motors operatively connected to said workpiece and gaging means storage and feeding means; said workpiece holding and positioning means, said workpiece grinding means and said workpiece gaging means; control valve means between each of said fluid motors and said supply of fluid under pressure; electric operator means regulating said control valve means to cause said workpiece holding and transfer means to move a workpiece to said workpiece holder means, thereafter to engage said workpiece holder with said workpiece and to position said workpiece for grinding by said grinding means and finally to move said gaging means into gaging engagement with selected ones of said workpiece while staying the operation of said transfer means until said workpiece is released from said workpiece holder.
Claim 5
Dependent Claim
65 words
An automatic control system as defined in claim 1, including further a mechanical drive means for moving said work holder to each of a plurality of selected positions for sequentially grinding of different portions of said workpiece and electrical control means including means enabling manual programming of the operation of said mechanical means to present said workpiece to said grinding means in selected sequential order.
Claim 6
Dependent Claim
87 words
An automatic control system as defined in claim 2 including an indexing cam means in said mechanical drive means for said work holder, said cam means defining an enlarged replica of the desired shape of said workpiece after it has been ground and said control means includes means to actuate said drive means to rotate said cam means to reposition said work holder and said workpiece sequentially in each of said selected positions and timing means for controlling the active and inactive periods of said drive means.
Claim 7
Dependent Claim
66 words
An automatic control system as defined in claim 1 including further settable means to control the final position of the work holder and workpiece relative to the work grinding means after each of said sequential positions and said control means includes means responsive to said gaging means to automatically adjust said final position of said work holder in response to variations gaged by said gaging means.
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) | 1976-02-13 | 1976-08-14 | 1977-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-13 | 1980-08-14 | 1981-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-13 | 1984-08-14 | 1985-02-13 | $7700.00 | Window Closed / Lapsed |