Title:
びびり評価システム
Document Type and Number:
Japanese Patent JP7380119
Kind Code:
B2
Abstract:
To provide a chatter evaluation system that evaluates amounts of chatter of a surface of a work-piece with good accuracy, in an in-process of grinding.SOLUTION: A chatter evaluation system 1 comprises: an axial directional movement calculation device that moves an acceleration sensor 15 provided in a sizing instrument that measures an outer diameter of a work-piece in a grinding device, in an axial direction of the work-piece; and a chatter amount evaluation/calculation device 200 that evaluates amounts of chatter in a circumferential direction on the basis of acceleration data. The chatter amount evaluation/calculation device 200 comprises: a basic data obtaining part 21 that obtains a plurality of basic data at respective positions in the axial direction of the work-piece; an FFT analysis part 22 that performs FFT analysis on the basis of the plurality of basic data; an extraction part 23 that extracts a specific frequency component; an inverse FFT analysis part 24 that performs inverse FFT analysis on the basis of each of the plurality of sampled FFT data; a displacement conversion part 25 that converts data concerning acceleration to data concerning displacement; and a chatter amount evaluation part 26 that evaluates amounts of chatter in the circumferential direction with respect to a position in the axial direction of the work-piece.SELECTED DRAWING: Figure 4
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Inventors:
Yuu Masuda
Toru Kawahara
Shinji Murakami
Akira Saito
Toru Kawahara
Shinji Murakami
Akira Saito
Application Number:
JP2019208312A
Publication Date:
November 15, 2023
Filing Date:
November 18, 2019
Export Citation:
Assignee:
JTEKT Corporation
International Classes:
B24B49/00; B23Q17/12; B23Q17/20; B23Q17/22; B24B5/04; B24B49/02; B24B49/10; B24B53/00; B24B53/04
Domestic Patent References:
| JP2001179620A | ||||
| JP2005246494A | ||||
| JP2018111149A |
Attorney, Agent or Firm:
Patent Attorney Corporation Aichi International Patent Office
Patent Attorney Corporation Kyoritsu Patent Office
Patent Attorney Corporation Kyoritsu Patent Office