Title:
THREE-DIMENSIONAL POSITION MEASUREMENT METHOD AND DEVICE FOR ROLLER BEARING
Document Type and Number:
Japanese Patent JP2016133454
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a three-dimensional position measurement method and device for a roller bearing in which measurement accuracy is hard to deteriorate even in a case of making an imaging speed faster.SOLUTION: On the basis of a photographic image of an overlapped imaging area c of a first high speed camera 1 and a second high speed camera 2, a three-dimensional position measurement method calculates a three-dimensional positions of a holder 63 and a conical roller 64 in the overlapped imaging region c on the basis of a stereo method. On the basis of overlapped region outside images of overlapped region outsides d, e with one high speed camera 1, 2, a roller axis direction calculated based on the three-dimension positions of one or more rollers in the overlapped region c, and a two-dimensional plane in which centers of the conical rollers 64 in the overlapped region outsides d, e calculated based on the three-dimensional positions of the holder 63 and the conical roller 64 in the overlapped imaging region c exist, the three-dimensional position of each roller reflected on the overlapped region outside image is calculated.SELECTED DRAWING: Figure 1
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Inventors:
NAKASE AKIYOSHI
Application Number:
JP2015009629A
Publication Date:
July 25, 2016
Filing Date:
January 21, 2015
Export Citation:
Assignee:
JTEKT CORP
International Classes:
G01B11/00; G01C3/06; G06T1/00
Attorney, Agent or Firm:
Mitsuo Tanaka
Hiroshi Yamazaki
Yasushi Ohata
Hiroshi Yamazaki
Yasushi Ohata