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US3766368A
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Predetermined processing length in a numerically controlled machine tool
Assignee: Siemens AG
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Filing: 1971-10-21
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Granted: 1973-10-16
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Expires: 1991-10-21
Abstract
Abstract A device for nibble and planing machines for the automatic division of a predetermined processing length in a numerically controlled machine tool wherein the standard step is predetermined from the outside and is not permitted to fall short of a specific value determined by technical requirements comprises a comparison device. A difference circuit supplies a signal representing the remaining processing length (s - x) to the comparison device. A step length counter supplies a signal representing the step length to the comparison device. The comparison device produces an output signal for reducing the step length to divide the remaining processing length into p steps of substantially equal length when the comparison result indicates that the remaining processing length is shorter than p times a longer standard step ( Delta s).
Inventors
- 👤 D Kremper
- 👤 F Weber
- 👤 P Schiewek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:22
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/182
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
142 words
A device for nibble and planing machines for the automatic division of a predetermined processing length in a numerically controlled machine tool wherein the standard step is predetermined from the outside and is not permitted to fall short of a specific value determined by technical requirements, said device comprising comparison means; difference means for supplying a signal representing the remaining processing length (s - x) to the comparison means; step length means for supplying a signal representing the step length to the comparison means, said comparison means producing an output signal for reducing the step length to divide the remaining processing length (s - x) into p steps of substantially equal length when said comparison means provides a comparison result which indicates that the remaining processing length (s - x) is shorter than p times a longer standard step ( Delta s).
Claim 2
Independent Claim
142 words
A device for nibble and planing machines for the automatic division of a predetermined processing length in a numerically controlled machine tool wherein the standard step is predetermined from the outside and is not permitted to fall short of a specific value determined by technical requirements, said device comprising comparison means; difference means for supplying a signal representing the remaining processing length (s - x) to the comparison means; step length means for supplying a signal representing the step length to the comparison means, said comparison means producing an output signal for reducing the step length to divide the remaining processing length (s - x) into p steps of substantially equal length when said comparison means provides a comparison result which indicates that the remaining processing length (s - x) is shorter than p times a longer standard step ( Delta s).
Claim 3
Dependent Claim
34 words
A device as claimed in claim 1, wherein the comparison means produces an output signal when the comparison result indicates that the remaining processing length (s - x) is shorter than four standard steps.
Claim 4
Dependent Claim
69 words
A device as claimed in claim 1, wherein the difference means comprises a processing length datum-pilot difference counter producing a zero signal at the end of the processing length and a register connected to the comparison means, said difference counter transferring a signal indicating the remaining processing length to the register after each step, and the step length means comprises a step length counter connected to the comparison means.
Claim 5
Dependent Claim
15 words
A device as claimed in claim 3, wherein the difference counter comprises a reverse counter.
Claim 6
Dependent Claim
37 words
A device as claimed in claim 3, wherein the dividing means includes means for preventing the transfer of a signal from the difference counter to the register of the difference means when the step length is shortened.
References Cited (Backward Citations)
US2817775A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |