Patent EP0139009A1 successfully refreshed from Google Patents.
EP0139009A1
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Method of determining tool path
Assignee: Fanuc Corp
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Filing: 1984-02-14
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Granted: —
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Expires: 2004-02-14
Abstract
Abstract A tool path determination method is employed to determine a tool path (ES) from an approach point (Pa) to a start point (Ps) of a first machining path (PF). The method comprises: a first step of inputting data ℓ 1 x,, y s ; a, x s , y s ) specifying a predetermined tool path pattern from a plurality of tool path patterns and also specifying the approach point (Pa); a second step of calculating coordinates (x a , y a ) of the position of the approach point (P a ) by employing an operational expression corresponding to the specified tool path pattern and the data specifying the approach point; and a third step of determining the tool path (ES) from the approach point (Pa) to the start point (Ps) of the machining path (PF), on the basis of the approach point and the specified path pattern.
Inventors
- 👤 Hajimu Kishi
- 👤 Masaki Seki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 09:14
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/4093; G05B19/40937; G05B2219/00; G05B2219/30; G05B2219/50; G05B2219/50109; G05B2219/50111; G05B2219/50116; Y; Y02; Y02P; Y02P90/00; Y02P90/02
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
115 words
A tool path determination method for determining a tool path from an approach completion point to a starting point of an initial machining pass, characterized by having a first step of designating a prescribed tool path pattern from a plurality of tool path patterns and entering data specifying said approach completion point, a second step of calculating positional coordinates of the approach completion point by using arithmetic formulae corresponding to the designated tool path pattern, as well as said data, and a third step of determining a tool path from the approach completion point to the starting point of said machining pass on the basis of said approach completion point and said designated path pattern.
Claim 2
Dependent Claim
115 words
A tool path determination method for determining a tool path from an approach completion point to a starting point of an initial machining pass, characterized by having a first step of designating a prescribed tool path pattern from a plurality of tool path patterns and entering data specifying said approach completion point, a second step of calculating positional coordinates of the approach completion point by using arithmetic formulae corresponding to the designated tool path pattern, as well as said data, and a third step of determining a tool path from the approach completion point to the starting point of said machining pass on the basis of said approach completion point and said designated path pattern.
Claim 3
Dependent Claim
62 words
A tool path determination method according to claim 1, characterized in that said third step determines the tool path by creating numerical control data from the approach completion point to the starting point of the machining pass by using the positional coordinates of the approach completion point, positional coordinates of the starting point of said machining pass, and said designated path pattern.
Claim 4
Dependent Claim
75 words
A tool path determination method according to claim 2, characterized in that said plurality of path patterns are a first pattern for moving a tool along an extension of said initial machining pass, a second pattern for moving the tool along a tangent to the initial machining pass at the starting point thereof, and a third pattern for moving the tool along a tangent circle to the initial machining pass at the starting point thereof.
Claim 5
Dependent Claim
49 words
A tool path determination method according to claim 3, characterized in that said plurality of path patterns are said first, second and third patterns in a case where the initial machining pass is a straight line, and in a case where the initial machining pass is a circular arc.
Claim 6
Dependent Claim
26 words
A tool path determination method according to claim 4, characterized in that said arithmetic formulae are stored in correlation with respective ones of said path patterns.
Claim 7
Dependent Claim
120 words
A tool path determination method for determining a tool path from an end point of a final machining pass to a tool retraction starting point, characterized by having a first step of designating a prescribed tool path pattern among a plurality of tool path patterns and entering data specifying said tool retraction starting point, a second step of calculating positional coordinates of the tool retraction starting point by using arithmetic formulae corresponding to the designated tool path pattern, as well as said data, and a third step of determining a tool path from the end point of said machining pass to said tool retraction starting point on the basis of said tool retraction starting point and said designated path pattern.
Claim 8
Dependent Claim
120 words
A tool path determination method for determining a tool path from an end point of a final machining pass to a tool retraction starting point, characterized by having a first step of designating a prescribed tool path pattern among a plurality of tool path patterns and entering data specifying said tool retraction starting point, a second step of calculating positional coordinates of the tool retraction starting point by using arithmetic formulae corresponding to the designated tool path pattern, as well as said data, and a third step of determining a tool path from the end point of said machining pass to said tool retraction starting point on the basis of said tool retraction starting point and said designated path pattern.
Claim 9
Dependent Claim
68 words
A tool path determination method according to claim 6, characterized in that said third step determines the tool path by creating numerical control data from the end point of said machining pass to the tool retraction starting point of the machining pass by using the positional coordinates of the tool retraction starting point, positional coordinates of the end point of said machining pass, and said designated path pattern.
Claim 10
Dependent Claim
74 words
A tool path determination method according to claim 7, characterized in that said plurality of path patterns are a pattern for moving a tool along an extension of said final machining pass, a second pattern for moving the tool along a tangent to the final machining pass at the end point thereof, and a third pattern for moving the tool along a tangent circle to the final machining pass at the end point thereof.
Claim 11
Dependent Claim
49 words
A tool path determination method according to claim 8, characterized in that said plurality of path patterns are said first, second and third patterns in a case where the final machining pass is a straight line, and in a case where the final machining pass is a circular arc.
Claim 12
Dependent Claim
26 words
A tool path determination method according to claim 9, characterized in that said arithmetic formulae are stored in correlation with respective ones of said path patterns.
References Cited (Backward Citations)
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