US4193227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adaptive grinding control
Assignee: Cincinnati Milacron Heald Corp
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Filing: 1978-06-21
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Granted: 1980-03-18
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Expires: 1998-06-21
Abstract
Abstract A method and apparatus for controlling the infeed of a grinding machine senses the interface force between a grinding wheel and a workpiece to control infeed for grinding a workpiece with diverse grindability characteristics. The infeed is increased in response to an increase in the sensed force until the interface force reaches a predetermined level; while the interface force is decreased to a predetermined level in response to a decrease in the sensed force.
Inventors
- 👤 Herbert R. Uhtenwoldt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:17
CPC Classifications
B; B24; B24B; B24B49/00; B24B49/16; B23; B23Q; B23Q15/00; B23Q15/007; B23Q15/12
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
89 words
A method of grinding a workpiece with diverse grindability characteristics, comprising: (a) interfacing a grinding wheel with a workpiece; (b) sensing the interface force between the wheel and the workpiece; (c) generating a signal whose magnitude varies as a function of the sensed force; (d) utilizing the generated signal to increase the interface force to a predetermined level in response to an increase in sensed force; and (e) utilizing the generated signal to decrease the interface force to a predetermined level in response to a decrease in sensed force.
Claim 2
Independent Claim
89 words
A method of grinding a workpiece with diverse grindability characteristics, comprising: (a) interfacing a grinding wheel with a workpiece; (b) sensing the interface force between the wheel and the workpiece; (c) generating a signal whose magnitude varies as a function of the sensed force; (d) utilizing the generated signal to increase the interface force to a predetermined level in response to an increase in sensed force; and (e) utilizing the generated signal to decrease the interface force to a predetermined level in response to a decrease in sensed force.
Claim 3
Dependent Claim
146 words
A grinding machine for grinding workpieces with diverse grindability characteristics, comprising: (a) a base; (b) a grinding wheel rotably mounted upon said base; (c) a workpiece support for supporting a workpiece with diverse grindability characteristics; (d) means for effectuating relative infeed movement between said grinding wheel and said workpiece support; (e) means for generating a signal whose magnitude varies as a function of the interface force between said grinding wheel and a workpiece supported in said workpiece support; (f) first means utilizing said generated signal for increasing the infeed in response to an increase in said sensed force, said first means increasing the infeed until the interface force reaches a predetermined level; and (g) second means utilizing said generated signal for decreasing the infeed in response to a decrease in said sensed force, said means decreasing the infeed until the interface force reaches a predetermined level.
Claim 4
Dependent Claim
146 words
A grinding machine for grinding workpieces with diverse grindability characteristics, comprising: (a) a base; (b) a grinding wheel rotably mounted upon said base; (c) a workpiece support for supporting a workpiece with diverse grindability characteristics; (d) means for effectuating relative infeed movement between said grinding wheel and said workpiece support; (e) means for generating a signal whose magnitude varies as a function of the interface force between said grinding wheel and a workpiece supported in said workpiece support; (f) first means utilizing said generated signal for increasing the infeed in response to an increase in said sensed force, said first means increasing the infeed until the interface force reaches a predetermined level; and (g) second means utilizing said generated signal for decreasing the infeed in response to a decrease in said sensed force, said means decreasing the infeed until the interface force reaches a predetermined level.
Claim 5
Dependent Claim
33 words
A grinding machine as recited in claim 2 wherein said signal generating means includes a transducer responsive to electrical energy used by an electrical spindle motor utilized to rotably power said grinding wheel.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-03-18 | 1983-09-17 | 1984-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-18 | 1987-09-17 | 1988-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-18 | 1991-09-17 | 1992-03-18 | $7700.00 | Window Closed / Lapsed |