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US4998196A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of creating NC data for turning

Assignee: Fanuc Corp
•
Filing: 1988-09-08
•
Granted: 1991-03-05
•
Expires: 2008-09-08
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Abstract

Abstract A method of creating NC data including storing various approach/withdrawal patterns in dependence upon a particular zone in which a turret index point/tool exchange position (P T ) is present, the zone being one among zones (ZN 1 -ZN 3 ) defined by horizonal and vertical axes passing through a point (Q) specified by a safe position coordinate (Z S ) in a longitudinal direction of a workpiece (WK) and a safe position coordinate (X S ) in a direction perpendicular to the longitudinal direction, and in dependence upon a plane to which a cutting starting/end point (P S ) belongs, the plane being one of a plane (LPS) in the longitudinal direction of the workpiece and a plane (TPS) perpendicular to the longitudinal direction belongs. A predetermined pattern is selected from among the stored approach/withdrawal patterns based on the zone to which the turret index point (P T ) actually belongs and the plane to which the cutting starting/end point (P S ) actually belongs. NC data for approach and NC data for withdrawal are created using the selected pattern.

Inventors

  • 👤 Masaki Seki
  • 👤 Takashi Takegahara
  • 👤 Masatoshi Nakajima

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 08:21
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/4093; G05B19/40937; G05B2219/00; G05B2219/30; G05B2219/45; G05B2219/45141; G05B2219/50; G05B2219/50114; Y; Y02; Y02P; Y02P90/00; Y02P90/02

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 92 words
A method of creating NC data for a tool mounted in an automatic programming system, comprising: storing safe position coordinates along two orthogonal axes; storing a tool exchange position; storing a cutting starting/end point; storing a plurality of approach/withdrawal patterns, said patterns being based on said tool exchange position, said safe position coordinates and said cutting starting/end point; selecting a predetermined pattern from among said patterns based on said tool exchange position and said cutting starting/end point; and creating NC data for approach and NC data for withdrawal using said selected pattern.
Claim 2
Independent Claim 92 words
A method of creating NC data for a tool mounted in an automatic programming system, comprising: storing safe position coordinates along two orthogonal axes; storing a tool exchange position; storing a cutting starting/end point; storing a plurality of approach/withdrawal patterns, said patterns being based on said tool exchange position, said safe position coordinates and said cutting starting/end point; selecting a predetermined pattern from among said patterns based on said tool exchange position and said cutting starting/end point; and creating NC data for approach and NC data for withdrawal using said selected pattern.
Claim 3
Dependent Claim 38 words
A method of creating NC data for turning according to claim 1, further comprising the steps of: entering part profile data; and determining a plane to which said cutting starting/end point belongs based on said part profile data.
Claim 4
Dependent Claim 55 words
A method of creating NC data for turning according to claim 1, further comprising the steps of: storing two or more approach/withdrawal patterns said tool exchange position and said cutting starting/end point; and selecting one of said approach/withdrawal patterns based on said tool exchange position, said cutting starting/end point and said entered pattern selection data.
Claim 5
Dependent Claim 36 words
A method of creating NC data for turning according to claim 3, further comprising the step of: displaying two or more of said approach/withdrawal patterns based on said tool exchange position and said cutting starting/end point.
Claim 6
Dependent Claim 56 words
A method of creating NC data for turning according to claim 1, further comprises the substep of: storing said plurality of approach/withdrawal patterns including data specifying an approach to or withdrawal from said cutting starting/end point in vertical direction, and data specifying an approach to or withdrawal from said cutting starting/end point in a horizontal direction.

References Cited (Backward Citations)

US4587608A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1994-03-04 1994-09-03 1995-03-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1998-03-04 1998-09-03 1999-03-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2002-03-04 2002-09-03 2003-03-05 $7700.00 Window Closed / Lapsed

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