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US4904914A Expired / Lapsed US ⏱️ 0.0 years remaining

NC Data creation method

Assignee: Fanuc Corp
•
Filing: 1988-07-01
•
Granted: 1990-02-27
•
Expires: 2008-07-01
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Abstract

Abstract The invention relates to a method of creating NC data for machining the interior of an area. The method includes displaying, on a graphic display unit (106), contours (CNT1, CNT2) inputted in order to specify the area (AR M ), recognizing the area (AR M ), which is designated by a graphic cursor by manipulation of a tablet (108) and painting the interior of the area in a predetermined color, subsequently removing the paint in a linear area (AR 1 ), having a width equivalent to a width of a tool, which connects a machining starting point (P S ) and a machining end point (P E ) designated by the graphic cursor, adopting the machining end point as the next machining starting point, thereafter inputting machining end points in succession, and creating NC data for machining the interior of the area (AR M ) by traversing a finally designated machining starting point and machining end point while moving the tool linearly.

Inventors

  • 👤 Masaki Seki
  • 👤 Takashi Takegahara
  • 👤 Takeshi Arakaki

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 00:30
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/4093; G05B19/40937; G05B2219/00; G05B2219/30; G05B2219/35; G05B2219/35461; G05B2219/36; G05B2219/36214; Y; Y02; Y02P; Y02P90/00; Y02P90/02

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 158 words
A method of creating NC data for machining any area, characterized by: displaying, on a graphic display screen, contours inputted in order to specify the area; recognizing the area, which is designated by a graphic cursor by manipulation of a tablet, and painting the interior of the area in a predetermined color; removing the paint in a circle having as its center a machining starting point designated by the graphic cursor and as its radius a designated tool radius; then removing paint in a linear area, having a diameter equivalent to a tool width, which connects a machining end point designated by the graphic cursor and said machining starting point, and adopting said machining end point as the next machining starting point; and thereafter inputting machining end points in succession, and creating NC data for machining the interior of the area by traversing a finally designated machining starting point and machining end point while moving a tool linearly.
Claim 2
Independent Claim 158 words
A method of creating NC data for machining any area, characterized by: displaying, on a graphic display screen, contours inputted in order to specify the area; recognizing the area, which is designated by a graphic cursor by manipulation of a tablet, and painting the interior of the area in a predetermined color; removing the paint in a circle having as its center a machining starting point designated by the graphic cursor and as its radius a designated tool radius; then removing paint in a linear area, having a diameter equivalent to a tool width, which connects a machining end point designated by the graphic cursor and said machining starting point, and adopting said machining end point as the next machining starting point; and thereafter inputting machining end points in succession, and creating NC data for machining the interior of the area by traversing a finally designated machining starting point and machining end point while moving a tool linearly.
Claim 3
Dependent Claim 31 words
A method of creating NC data according to claim 1, characterized by displaying an excessively cut portion in a distinguishable manner if cutting is designated that exceeds boundaries of said area.

References Cited (Backward Citations)

US4295198A Cited
US4514818A Cited
US4663705A Cited
US4644460A Cited
US4727496A Cited
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US4782335B1 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-02-26 1993-08-28 1994-02-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-02-26 1997-08-28 1998-02-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-02-26 2001-08-28 2002-02-27 $7700.00 Window Closed / Lapsed

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