US4469930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three-dimensional laser cutting system by a playback method
Assignee: FUJI TOOL & DIE Co Ltd 20 MATOBA SHIMIZU-CHO SUNTO-GUN SHIZUOKA-KEN JAPAN
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Filing: 1982-07-09
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Granted: 1984-09-04
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Expires: 2002-07-09
Abstract
Abstract A three-dimensional laser cutting system by a playback method, adapted to cut work pieces by means of a laser beam. The system comprises a three-dimensional drive machine provided on its main head with a laser head, high speed spindle head and tracer head; a laser unit disposed beside said machine; laser beam delivery means for guiding a laser beam from said laser unit to a laser beam emission nozzle of said laser head; and a computer having a CNC function of driving said tracer head on the basis of a two-dimensional NC tape, and a CTC function of preparing a three-dimensional NC tape on the basis of said two-dimensional NC tape and data obtained by scanning and driving said laser head by a playback method on the basis of said three-dimensional NC tape. The system of the invention may be used for various purposes. When it is used for three-dimensional laser cutting a two-dimensional NC tape of a three-dimensional work piece is prepared, the work piece being scanned by means of said tracer head on the basis of said two-dimensional NC tape, a three-dimensional NC tape being prepared on the basis of said two-dimensional NC tape and data obtained by scanning, then the work piece being cut by means of said laser head on the basis of said three-dimensional NC tape.
Inventors
- 👤 Toshio Takahashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:23
CPC Classifications
B; B23; B23K; B23K26/00; B23K26/08; B23K26/0869; B23K26/0876; B23K26/0884; B23K26/0093; B23K26/10; G; G05; G05B; G05B19/00; G05B19/02; G05B19/42; G05B19/4202; G05B19/4205; G05B2219/00; G05B2219/30; G05B2219/45; G05B2219/45165; G05B2219/49; G05B2219/49239; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/300896
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
170 words
A three-dimensional laser cutting system by a playback method, comprising: a three-dimensional drive machine having a main head movable in the directions of the x-axis, y-axis and z-axis, said main head being provided with three sub-heads consisting of a laser head, a high speed spindle head and a tracer head, a laser unit disposed beside said machine, laser beam delivery means for guiding a laser beam from said laser unit to a laser beam emission nozzle of said laser head, and a computer having a CNC function of driving said tracer head on the basis of a two-dimensional NC tape containing data relating to the directions of the x-axis and y-axis, and a CTC function of obtaining data relating to the direction of the z-axis by scanning a line on a three-dimensional work piece, preparing a three-dimensional NC tape on the basis of said two-dimensional NC tape and said data obtained by scanning, and driving said laser head by a playback method on the basis of said three-dimensional NC tape.
Claim 2
Dependent Claim
170 words
A three-dimensional laser cutting system by a playback method, comprising: a three-dimensional drive machine having a main head movable in the directions of the x-axis, y-axis and z-axis, said main head being provided with three sub-heads consisting of a laser head, a high speed spindle head and a tracer head, a laser unit disposed beside said machine, laser beam delivery means for guiding a laser beam from said laser unit to a laser beam emission nozzle of said laser head, and a computer having a CNC function of driving said tracer head on the basis of a two-dimensional NC tape containing data relating to the directions of the x-axis and y-axis, and a CTC function of obtaining data relating to the direction of the z-axis by scanning a line on a three-dimensional work piece, preparing a three-dimensional NC tape on the basis of said two-dimensional NC tape and said data obtained by scanning, and driving said laser head by a playback method on the basis of said three-dimensional NC tape.
Claim 3
Dependent Claim
151 words
A three-dimensional laser cutting system by a playback method, comprising: a three-dimensional drive double housing planomiller having a main head movable in the directions of the x-axis, y-axis and z-axis, said main head being provided with three such-heads consisting of a laser head, high speed spindle head and a tracer head, a laser unit disposed beside said planomiller, laser beam delivery means for guiding a laser beam from said laser unit to a laser beam emission nozzle of said laser head, and a computer having a CNC function of controlling said tracer head so as to scan a line on a work piece on the basis of two-dimensional NC data, and a CTC function of preparing three-dimensional NC data on the basis of said two-dimensional NC data and said data obtained by scanning, and driving said laser head or high speed spindle head on the basis of said three-dimensional NC data.
Claim 4
Dependent Claim
151 words
A three-dimensional laser cutting system by a playback method, comprising: a three-dimensional drive double housing planomiller having a main head movable in the directions of the x-axis, y-axis and z-axis, said main head being provided with three such-heads consisting of a laser head, high speed spindle head and a tracer head, a laser unit disposed beside said planomiller, laser beam delivery means for guiding a laser beam from said laser unit to a laser beam emission nozzle of said laser head, and a computer having a CNC function of controlling said tracer head so as to scan a line on a work piece on the basis of two-dimensional NC data, and a CTC function of preparing three-dimensional NC data on the basis of said two-dimensional NC data and said data obtained by scanning, and driving said laser head or high speed spindle head on the basis of said three-dimensional NC data.
Claim 5
Dependent Claim
122 words
A three-dimensional laser cutting system by a playback method as claimed in claim 1 or 2, wherein said three-dimensional drive machine comprises a table disposed on a bed so as to reciprocate longitudinally (in the direction of the x-axis), a pair of vertical columns disposed on both sides of said table, a cross rail disposed between the upper portions of said columns, a cross screw horizontally disposed within said cross rail, said main head being attached to said cross rail so as to be moved transversely (in the direction of the y-axis) by said cross screw, said main head being provided on its front surface with said three sub-heads each of which can be moved vertically (in the direction of the z-axis).
Claim 6
Dependent Claim
68 words
A three-dimensional laser cutting system by a playback method as claimed in claim 3, wherein said three-dimensional drive machine is provided at one end of said bed with an x-axis DC servomotor for moving said table longitudinally, at one end of said cross rail with a y-axis DC servomotor for moving said main head transversely, and at the top of said main head with a z-axis DC servomotor.
Claim 7
Dependent Claim
48 words
A three-dimensional laser cutting system by a playback method as claimed in claim 3, wherein said three-dimensional drive machine further comprises brackets secured to the front portions of said columns, and a bridge mounted between the tops of said brackets, said bridge supporting said laser beam delivery means.
Claim 8
Dependent Claim
157 words
A three-dimensional laser cutting system by a playback method as claimed in claim 5, wherein said laser beam delivery means comprise a first telescopic protection tube disposed in the direction of the z-axis on one side of said three-dimensional drive machine, a second telescopic protection tube suspended from said bridge in the direction of the y-axis, a third telescopic protection tube extending in the direction of the z-axis from the end of said second telescopic protection tube to said laser beam emission nozzle, a first beam optical unit disposed at the intersection between a beam enhancer of said laser unit and said first telescopic protection tube, said first beam optical unit containing a reflector, a second beam optical unit disposed at the intersection between said first telescopic protection tube and said second telescopic protection tube, and a third beam optical unit disposed at the intersection between said second telescopic protection tube and said third telescopic protection tube.
Claim 9
Dependent Claim
38 words
A three-dimensional laser cutting system by a playback method as claimed in claim 4, wherein said three-dimensional drive machine is further provided on top of a cross beam with an electric motor for vertically moving said cross rail.
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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) | 1987-09-04 | 1988-03-05 | 1988-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-04 | 1992-03-05 | 1992-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-04 | 1996-03-05 | 1996-09-04 | $7700.00 | Window Closed / Lapsed |