Title:
MACHINE TOOL AND DISPLACEMENT MEASURING INSTRUMENT
Document Type and Number:
WIPO Patent Application WO/2011/052441
Kind Code:
A1
Abstract:
A displacement measuring instrument (20) comprising a main shaft center measuring section (22) and a blade block reference position measuring section (23) is installed on a main shaft block (5), and a blade block (8) is provided with a shaft to be detected (21). The main shaft center measuring section (22) comprises gap sensors (S) in a minimum of two circumferential positions, which detect gaps with respect to the peripheral surface of a main shaft (6). The blade block reference position measuring section (23) comprises gap sensors (S) in a minimum of two circumferential positions, which detect gaps with respect to the peripheral surface of the shaft to be detected (21). A means (28) is provided for obtaining a main shaft center (O) and the center of the shaft to be detected, on the basis of the outputs of the gap sensors (S), and for calculating the distance between the main shaft center (O) and the blade block (8). The blade block reference position measuring section (23) may be made to serve as a sensor target.
Inventors:
NAKAGAWA, Atsushi (LTD. Inuyama Plant 2, Aza-Nakajima, Oaza-Hashizume, Inuyama-sh, Aichi 02, 〒4848502, JP)
Application Number:
JP2010/068431
Publication Date:
May 05, 2011
Filing Date:
October 20, 2010
Export Citation:
Assignee:
MURATA MACHINERY, LTD. (3 Minami Ochiai-cho, Kisshoin Minami-ku, Kyoto-sh, Kyoto 26, 〒6018326, JP)
村田機械株式会社 (〒26 京都府京都市南区吉祥院南落合町３番地 Kyoto, 〒6018326, JP)
村田機械株式会社 (〒26 京都府京都市南区吉祥院南落合町３番地 Kyoto, 〒6018326, JP)
International Classes:
B23Q17/00; B23B25/06; B23Q15/18; G05B19/404
Attorney, Agent or Firm:
SUGIMOTO, Shuji et al. (Higobashi Nittai Bldg, 10-2 Edobori 1-chome, Nishi-ku, Osaka-sh, Osaka 02, 〒5500002, JP)