Apparatus and method for status diagnosis of machine tools
US-2023314282-A1 · Oct 5, 2023 · US
Numerical control system
US2020249650A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2020249650-A1 |
| Application number | US-202016750796-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jan 23, 2020 |
| Priority date | Jan 31, 2019 |
| Publication date | Aug 6, 2020 |
| Grant date | — |
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Abstract
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A numerical control system includes: a context acquisition unit that acquires a context in a machining operation of a machine tool; a state amount detection unit that determines a control state amount of each axis of the machine tool; a state data extraction unit that extracts state data from the state amount by using an extraction pattern based on the context; a feature amount creation unit that creates a feature amount featuring the operation state of the machine tool from the state data; an inference calculation unit that calculates an evaluation value of the operation state based on the feature amount; and an anomaly determination unit that determines the operation state based on a calculation. The numerical control system can detect an anomaly of the operation state in a wider range even when a motor operation pattern during machining, a tool, a work is different.
First claim
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1 . A numerical control system that determines an operation state of a machine tool, the numerical control system comprising: a context acquisition unit that acquires a context in a machining operation of the machine tool; a state amount detection unit that determines a state amount related to an operation state of the machine tool; a state data extraction unit that extracts state data from the state amount by using an extraction pattern based on the context in the machining operation acquired by the context acquisition unit; a feature amount creation unit that creates a feature amount featuring the operation state of the machine tool from the state data; an inference calculation unit that calculates an evaluation value of the operation state of the machine tool based on the feature amount; and an anomaly determination unit that determines the operation state of the machine tool based on a calculation result from the inference calculation unit. 2 . The numerical control system according to claim 1 , further comprising an extraction pattern storage unit that stores a plurality of extraction patterns associated with the context in the machining operation of the machine tool, respectively, wherein the state data extraction unit extracts state data from the state amount by using an extraction pattern selected from the extraction pattern storage unit based on the context in the machining operation acquired by the context acquisition unit.
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characterised by monitoring or safety (G05B19/19 takes precedence) · CPC title
Director is the nc controller, computer · CPC title
- G05B19/414Primary
Structure of the control system, e.g. common controller or multiprocessor systems, interface to servo, programmable interface controller · CPC title
- G06N20/00Primary
Machine learning · CPC title
Inference or reasoning models · CPC title
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- What does patent US2020249650A1 cover?
- A numerical control system includes: a context acquisition unit that acquires a context in a machining operation of a machine tool; a state amount detection unit that determines a control state amount of each axis of the machine tool; a state data extraction unit that extracts state data from the state amount by using an extraction pattern based on the context; a feature amount creation unit th…
- Who is the assignee on this patent?
- Fanuc Corp
- What technology area does this patent fall under?
- Primary CPC classification G05B19/414. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu Aug 06 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 12 related publications on this page (citations in our corpus or others sharing the same primary CPC).