Patent US4985840A successfully refreshed from Google Patents.
US4985840A
Expired / Lapsed
US
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Arbitrarily shaped workpiece machining method
Assignee: Fanuc Corp
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Filing: 1988-09-14
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Granted: 1991-01-15
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Expires: 2008-09-14
Abstract
Abstract An arbitrarily shaped workpiece machining method of machining a workpiece having arbitrarily shaped machining portions defined by closed curves of a pond, an island and the like is disclosed, wherein boundary meshes (9a, 9b) having center lines through which a contour passes are created, and the arbitrarily shaped workpiece is machined by horizontally machining portions between the boundary meshes (9a, 9b). With the above arrangement, the arbitrarily shaped workpiece can be machined without the need for an automatic program creation device or the like.
Inventors
- 👤 Satoru Shinozaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:52
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/4093; G05B19/40937; G05B19/40931; G05B19/40932; G05B19/40933; G05B19/41; G05B2219/00; G05B2219/30; G05B2219/36; G05B2219/36214; G05B2219/49; G05B2219/49381; Y; Y02; Y02P; Y02P90/00; Y02P90/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
79 words
An arbitrarily shaped workpiece machining method of machining a workpiece having arbitrarily shaped machining portions defined by closed curves of a pond shape, an island shape and the like, comprising the steps of: forming meshes on said arbitrarily shaped portions; machining contours of said closed curves; creating boundary meshes having center lines through which said contours pass; and horizontally or vertically machining portions between said boundary meshes to thereby machine said arbitrarily shaped portions defined by the closed curves.
Claim 2
Dependent Claim
79 words
An arbitrarily shaped workpiece machining method of machining a workpiece having arbitrarily shaped machining portions defined by closed curves of a pond shape, an island shape and the like, comprising the steps of: forming meshes on said arbitrarily shaped portions; machining contours of said closed curves; creating boundary meshes having center lines through which said contours pass; and horizontally or vertically machining portions between said boundary meshes to thereby machine said arbitrarily shaped portions defined by the closed curves.
Claim 3
Dependent Claim
22 words
An arbitrarily shaped portions machining method according to claim 1, wherein said meshes are squares circumscribed by an outline of a tool.
Claim 4
Dependent Claim
29 words
An arbitrarily shaped workpiece machining method according to claim 1, wherein numbers are given to said boundary meshes and only portions between odd numbers and even numbers are machined.
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) | 1994-01-14 | 1994-07-16 | 1995-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-01-14 | 1998-07-16 | 1999-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-01-14 | 2002-07-16 | 2003-01-15 | $7700.00 | Window Closed / Lapsed |