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Title:
BENDING DEVICE
Document Type and Number:
WIPO Patent Application WO/2010/134496
Kind Code:
A1
Abstract:
Provided is a bending device (10) having high productivity and capable of being installed in a reduced space, easily maintained, and manufacturing a bent member (35) consisting of a steel pipe (17) with high dimensional accuracy. The bending device (10) is provided with: a feeding mechanism (11) for feeding the steel pipe (17) in the longitudinal direction; a first support mechanism for supporting the steel pipe (17) while feeding the steel pipe; a heating mechanism (13) for heating a part of or the whole of the steel pipe (17) being fed; a cooling mechanism (14) for cooling the portion of the steel pipe (17) being fed, said portion being that which is heated by the heating mechanism (13); a second support mechanism (15) for bending the steel pipe (17) in a desired form by applying bending moment to the heated portion by moving the steel pipe (17) in the two-dimensional or three-dimensional direction while supporting at least a portion of the steel pipe (17) being fed; and a deformation prevention mechanism (16) for preventing the steel pipe (17) from being deformed. The feeding mechanism (11) is constituted of a first industrial robot (18) which is a seven-axis vertical multi-joint robot.

Inventors:
KUWAYAMA Shinjiro (5-33, Kitahama 4-chome, Chuo-ku, Osaka-sh, Osaka 41, 〒5410041, JP)
桑山 真二郎 (〒41 大阪府大阪市中央区北浜4丁目5番33号 住友金属工業株式会社内 Osaka, 〒5410041, JP)
TOMIZAWA Atsushi (5-33, Kitahama 4-chome, Chuo-ku, Osaka-sh, Osaka 41, 〒5410041, JP)
Application Number:
JP2010/058301
Publication Date:
November 25, 2010
Filing Date:
May 17, 2010
Export Citation:
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Assignee:
SUMITOMO METAL INDUSTRIES, LTD. (5-33, Kitahama 4-chome Chuo-ku, Osaka-sh, Osaka 41, 〒5410041, JP)
住友金属工業株式会社 (〒41 大阪府大阪市中央区北浜4丁目5番33号 Osaka, 〒5410041, JP)
SUMITOMO PIPE & TUBE CO., LTD. (3-5 Oaza Hikari, Kashima-shi Ibaraki, 14, 〒3140014, JP)
住友鋼管株式会社 (〒14 茨城県鹿嶋市大字光3番地5号 Ibaraki, 〒3140014, JP)
KUWAYAMA Shinjiro (5-33, Kitahama 4-chome, Chuo-ku, Osaka-sh, Osaka 41, 〒5410041, JP)
International Classes:
B21D7/16
Domestic Patent References:
2008-10-16
2006-05-11
2006-09-08
Other References:
JIDOSHA GIJUSTSU vol. 57, no. 6, 2003, pages 23 - 28
See also references of EP 2433723A1
Attorney, Agent or Firm:
HIROSE Shoichi (Tozan Building, 4-2 Nihonbashi Honcho 4-chome, Chuo-k, Tokyo 23, 〒1030023, JP)
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Claims: