Patent US3817416A successfully refreshed from Google Patents.
Patent US914897A successfully refreshed from Google Patents.
EP0113682A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Numerical control system and method
Assignee: Mitsubishi Electric Corp
•
Filing: 1984-01-11
•
Granted: —
•
Expires: 2004-01-11
Abstract
Abstract Data items corresponding to a configuration of a workpiece (11), a finally machined workpiece contour (19), and a cutter shape are entered through a data input unit, and the workpiece configuration and the finally machined workpiece contour (19) are displayed on a graphics display unit. A cutter path (20) subjected to cutter edge compensation is computed from the entered data items, and in one embodiment a finishing allowance is erased from the displayed image along the cutter path to thereby display uncut portions (15,16). The uncut portions may also be displayed by finding intersections (A,B) of the finally machined workpiece contour (19) and machined contour (20) and overlapping the intersections on the finally machined workpiece contour (19).
Inventors
- 👤 Katsuhide C/O Mitsubishi Denki K.K. Sekikawa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 18:51
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/4093; G05B19/40937; G05B19/40938; G05B2219/00; G05B2219/30; G05B2219/35; G05B2219/35349; G05B2219/35401; G05B2219/35501; Y; Y02; Y02P; Y02P90/00; Y02P90/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
100 words
A numerical control system characterised by: (a) a numerical control unit for controlling a machine tool; (b) a graphics display unit connected to said numerical control unit; (c) input means for entering a finally machined workpiece contour and a cutter shape (14); and - (d) means responsive to input signals from said input means for effecting cutter edge shape compensation and displaying portions (15,16) uncut due to the cutter shape (14) as a graphics image on said graphics display unit on the basis of a contour (20) subjected to cutter edge shape compensation and a finally machined workpiece contour (19).
Claim 2
Dependent Claim
100 words
A numerical control system characterised by: (a) a numerical control unit for controlling a machine tool; (b) a graphics display unit connected to said numerical control unit; (c) input means for entering a finally machined workpiece contour and a cutter shape (14); and - (d) means responsive to input signals from said input means for effecting cutter edge shape compensation and displaying portions (15,16) uncut due to the cutter shape (14) as a graphics image on said graphics display unit on the basis of a contour (20) subjected to cutter edge shape compensation and a finally machined workpiece contour (19).
Claim 3
Dependent Claim
25 words
A numerical control system according to claim 1 characterised in that said numerical control unit comprises a data input unit and a central processing unit.
Claim 4
Independent Claim
141 words
A method of displaying uncut portions in a numerical control system including a numerical control unit composed of a data input unit and a central processing unit for issuing commands to machine a workpiece, and a graphics display unit responsive to said commands for displaying a graphics image, said method being characterised by the steps of: (a) entering data representing a finally machined workpiece contour (19) and a cutter shape (14) into said data input unit; (b) computing a cutter path (20) subjected to cutter edge compensation from said data representing said finally machined workpiece contour (19) and cutter shape (14); and (c) displaying portions (15,16) uncut due to the cutter shape (14) as a graphics image on said graphics display unit on the basis of a contour (20) subjected to cutter edge compensation and a finally machined workpiece contour (19).
Claim 5
Independent Claim
141 words
A method of displaying uncut portions in a numerical control system including a numerical control unit composed of a data input unit and a central processing unit for issuing commands to machine a workpiece, and a graphics display unit responsive to said commands for displaying a graphics image, said method being characterised by the steps of: (a) entering data representing a finally machined workpiece contour (19) and a cutter shape (14) into said data input unit; (b) computing a cutter path (20) subjected to cutter edge compensation from said data representing said finally machined workpiece contour (19) and cutter shape (14); and (c) displaying portions (15,16) uncut due to the cutter shape (14) as a graphics image on said graphics display unit on the basis of a contour (20) subjected to cutter edge compensation and a finally machined workpiece contour (19).
Claim 6
Dependent Claim
74 words
A method according to claim 3, further characterised by the steps of: entering data representing a workpiece (11) configuration, said finally machined workpiece contour (19), and said cutter shape (14) from said data input unit, displaying said finally machined workpiece contour (19) and said workpiece configuration in overlapping relation, computing a cutter path (20) subjected to cutter edge compensation from the entered data, and erasing a finishing allowance (17) along said computed cutter path.
Claim 7
Dependent Claim
76 words
A method according to claim 3, further characterised by the steps of: entering data representing said finally machined workpiece (19) contour and said cutter shape (14) from said data input unit, computing and displaying intersections (A,B) of said finally machined workpiece contour (19) and a machined contour (20) based on said finally machined workpiece contour (19) and said cutter shape (14), and displaying said intersections (A,B) and said finally machined workpiece contour (19) in overlapping relation.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.