Numerical control system

A numerical control and state data technology, applied in general control systems, control/regulation systems, digital control, etc., can solve problems such as difficulties

Pending Publication Date: 2020-08-07
FANUC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is difficult to create a general-purpose machine learning machine (general-purpose learning model) that can be used to detect abnormalities in the operating state of machine tools corresponding to these various situations, since a large amount of state information detected under various situations is required.

Method used

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  • Numerical control system
  • Numerical control system
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Embodiment Construction

[0021] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0022] figure 1 It is a hardware configuration diagram schematically showing main parts of a numerical control device and a machine learning device constituting a numerical control system 1 according to an embodiment of the present invention. The CPU 11 included in the numerical controller 2 of the present embodiment is a processor that controls the numerical controller 2 as a whole. The CPU 11 reads out the system program stored in the ROM 12, and controls the numerical controller 2 as a whole in accordance with the system program. Temporary calculation data, display data, various data input by an operator through an input unit not shown, etc. are temporarily stored in the RAM 13 . In addition, the numerical controller 2 may include a nonvolatile memory 14 . The nonvolatile memory 14 is backed up by a battery (not shown), and the storage state is maintained even if ...

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Abstract

A numerical control system provided by the present invention includes a context acquisition unit that acquires a context in a machining operation of a machine tool; a state amount detection unit thatdetermines 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 and a work are different.

Description

technical field [0001] The present invention relates to a numerical control system, and more particularly, to a numerical control system for judging the operating state of a machine tool by switching a learning model. Background technique [0002] There is the following technology: in machine tools (such as machining centers, lathes, etc.) When a large load is applied to the shaft motor), when an abnormal temperature is detected, when an impact or an abnormal sound is detected, etc., it is judged that the operating state of the machine tool is in an abnormal state (for example, Japanese Patent Application Laid-Open No. 2009-080752 , Japanese Patent Laid-Open No. 2008-110435, Japanese Patent Laid-Open No. 2007-072879, Japanese Patent Laid-Open No. 09-076144, etc.). [0003] However, even if it is intended to judge the abnormality of the operating state of the machine tool based on information that can be observed from the outside during processing, when the operating state o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/414
CPCG05B19/414G05B2219/33001G06N20/00G05B19/406G05B19/408G06N5/04
Inventor 佐藤和宏饭岛一宪
Owner FANUC LTD
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