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US4723203A
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Automatic machining process determination method in an automatic programming system
Assignee: Fanuc Corp
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Filing: 1984-12-14
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Granted: 1988-02-02
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Expires: 2004-12-14
Abstract
Abstract A machining process determination method in automatic programming for automatically creating NC data for a lathe. The method includes storing machining processes in a memory in a machining sequence, reading the previously stored machining processes out of the memory in order after entry of a blank profile (BP) and part profile (PF); automatically discriminating based on the blank profile and final part profile whether the read machining process is needed to obtain a final part; when it is not required, performing identical discrimination processing upon reading the next machining process out of the memory, and when it is required, determining a cutting domain (A1, A2, A3) and cutting direction of the machining process; and thereafter creating NC data upon reading subsequent machining processes out of the memory and performing identical processing.
Inventors
- 👤 Hajimu Kishi
- 👤 Masaki Seki
- 👤 Kunio Tanaka
- 👤 Teruyuki Matsumura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:16
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/4093; G05B19/40937; G05B2219/00; G05B2219/30; G05B2219/36; G05B2219/36263; G05B2219/36288; G05B2219/36296; G05B2219/36333; Y; Y02; Y02P; Y02P90/00; Y02P90/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
172 words
A machining process determination method in an automatic programming system having a memory and an operator's panel, said method comprising the steps of: (a) storing a standard sequence of machining processes in the memory; (b) entering blank profile data; (c) entering final part profile data; (d) automatically reading a name of a stored machining process out of the memory; (e) automatically discriminating, based on the blank profile data and the final part profile data, whether the read name of a stored machining process is required in order to obtain the final part profile; (f) if the read name of a stored machining process is not required, repeating (d); (g) automatically determining a machining area and cutting direction of a machining process identified by the read name, if the read name of a stored machining process is required; (h) automatically repeating steps (d) thru (g) for each of the stored machining processes; and (i) automatically creating and storing NC data for performing machining in accordance with the results of steps (d) through (h).
Claim 2
Dependent Claim
172 words
A machining process determination method in an automatic programming system having a memory and an operator's panel, said method comprising the steps of: (a) storing a standard sequence of machining processes in the memory; (b) entering blank profile data; (c) entering final part profile data; (d) automatically reading a name of a stored machining process out of the memory; (e) automatically discriminating, based on the blank profile data and the final part profile data, whether the read name of a stored machining process is required in order to obtain the final part profile; (f) if the read name of a stored machining process is not required, repeating (d); (g) automatically determining a machining area and cutting direction of a machining process identified by the read name, if the read name of a stored machining process is required; (h) automatically repeating steps (d) thru (g) for each of the stored machining processes; and (i) automatically creating and storing NC data for performing machining in accordance with the results of steps (d) through (h).
Claim 3
Dependent Claim
95 words
A machining process determination method for machining a part in an X, Y, Z orthogonal coordinate system according to claim 1, further comprising the steps of: automatically obtaining from said final part profile data a maximum value Z max of the part measured along a Z axis; automatically comparing the magnitude of Z max with the magnitude of a dimensional value L of said blank profile data, measured along the Z axis; automatically deciding that end face cutting is required when Z max <L holds; and automatically initiating data entry defining the end face cutting.
Claim 4
Dependent Claim
44 words
A machining process determination method for machining a part in an X, Y, Z orthogonal coordinate system according to claim 2, further comprising the step of: automatically determining a machining area based on the value of L and Z max for end face cutting.
Claim 5
Dependent Claim
98 words
A machining process determination method for machining a part in an X, Y, Z orthogonal coordinate system according to claim 1, further comprising the steps of: automatically obtaining from said final part profile data a maximum value X max of an end face of the part measured in an X direction; automatically comparing the magnitude of X max with the magnitude of a dimensional value D of said blank profile data, measured along the X axis; automatically deciding that outer diameter cutting is required when D>X max holds; and automatically initiating data entry defining the outer diameter cutting.
Claim 6
Dependent Claim
44 words
A machining process determination method for machining a part in an X, Y, Z orthogonal coordinate system according to claim 4, further comprising the step of: automatically determining a machining area in accordancd with the value D and X max for outer diameter cutting.
Claim 7
Dependent Claim
74 words
A machining process determination method for machining a part in an X, Y, Z orthogonal coordinate system according to claim 1, further comprising the steps of: automatically obtaining from said final part profile data a minimum value X min of an end face of the part measured along an X axis; automatically deciding that inner diameter cutting is required when X min 0 holds; and automatically initiating data entry defining the inner diameter cutting.
Claim 8
Dependent Claim
30 words
A machining process determination method according to claim 6, further comprising the steps of: automatically determining a machining area in accordance with the value X min for inner diameter cutting.
Claim 9
Dependent Claim
24 words
A machining process determination method according to claim 6, wherein said data entry defining the inner diameter cutting includes entry of data defining drilling.
Claim 10
Dependent Claim
87 words
A machining process determination method for machining a part in an X, Y, Z orthogonal coordinate system with a lathe having a chuck, according to claim 1, further comprising the steps of: storing data defining a cutting direction to be towards or away from the chuck; storing data defining a -Z direction as a cutting direction for a step of outer diameter cutting and a step of inner diameter cutting; storing data defining an -X direction as a cutting direction for a step of end face cutting.
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