Title:
TOOL DIAGNOSTIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/241352
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a technique that can accurately diagnose the state of a tool, on the basis of state quantities acquired from a machine. A tool diagnostic device (1) comprises: a data acquisition unit (110) for acquiring state quantities of a motor, which drives a tool, before and after rotation of the tool is stopped in tapping, as waveform data; a reference waveform generation unit (120) for generating reference waveform data; a difference waveform calculation unit (130) for calculating the difference between the waveform data and the reference waveform data as difference waveform data; a waveform characteristic calculation unit (140) for calculating waveform characteristic data representing a waveform characteristic from the difference waveform data; a learning result storage unit (220) for storing a learning result of learning a correlation between the waveform characteristic data and tool life; and a state diagnostic unit (160) for diagnosing the state of the tool on the basis of the waveform characteristic data, using the learning result.
Inventors:
SHIBASAKI YASUHIRO (JP)
Application Number:
PCT/JP2021/018959
Publication Date:
December 02, 2021
Filing Date:
May 19, 2021
Export Citation:
Assignee:
FANUC CORP (JP)
International Classes:
B23G1/16; B23Q17/09; G05B19/18; G05B19/4063; G05B19/4155
Foreign References:
| JP5966633B2 | 2016-08-10 | |||
| JP2006205350A | 2006-08-10 | |||
| JP2019082836A | 2019-05-30 | |||
| JP2018097494A | 2018-06-21 | |||
| JP2006082154A | 2006-03-30 |
Attorney, Agent or Firm:
AIWA INTERNATIONAL PATENT AGENCY (JP)
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