Title:
OUTER DIAMETER MEASURING METHOD AND DEVICE
Document Type and Number:
Japanese Patent JP3390968
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a low-cost outer diameter measuring method and device capable of measuring accurately the outer diameter of work.
SOLUTION: In this measuring device 10, a reference hole 22A is formed on a head 22, and compressed air is supplied into the reference hole 22A. The work 30 is inserted into the reference hole 22A, and the back pressure at that time is detected by an A/E converter 18. The head 22 is floated and supported by jetting out the compressed air from a nozzle 28A of a base 28. Thus, when an automatic centripetal function works on the work 30, the head 22 is moved relatively with the work 30, to thereby arrange the work 30 in the center of the reference hole 22A.
Inventors:
Susumu Sawafuji
Masahiro Tomoe
Kazuo Nakajima
Masahiro Tomoe
Kazuo Nakajima
Application Number:
JP2000174153A
Publication Date:
March 31, 2003
Filing Date:
June 09, 2000
Export Citation:
Assignee:
Tokyo Seimitsu Co., Ltd.
International Classes:
G01B13/08; (IPC1-7): G01B13/08
Domestic Patent References:
| JP27510U |
Attorney, Agent or Firm:
Kenzo Matsuura
Previous Patent: DEVICE FOR MANUFACTURING DRY COMPRESSED AIR
Next Patent: GROOVE SHAPE MEASURING METHOD AND DEVICE
Next Patent: GROOVE SHAPE MEASURING METHOD AND DEVICE