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Title:
COMPOSITE FABRICATION FACILITY OF STEEL TUBE AND FABRICATION METHOD OF STEEL TUBE
Document Type and Number:
WIPO Patent Application WO/2004/026503
Kind Code:
A1
Abstract:
A small and easy−to−move composite fabrication facility of steel tube and a fabrication method in which grinding of flared surface, beveling, and stripping of lining as well as flaring of a steel tube can be carried out. A spindle (121) is fixed rotatably to a slide frame (141) slidable with respect to a common frame (103), and a second machining head (124) is fixed to a flange part at the forward end of the spindle (121). A sub−shaft (131) is fixed in the spindle (121) slidably and rotatably together with the spindle and a first machining head (134) is fixed to a fixing base (132) at the forward end thereof. Through rotation and back&sol forth movement of the spindle (121) and back&sol forth movement of the sub−shaft (131) with respect to the spindle (121), the first machining head (134) flares the forward end part of a steel tube (110) held by a steel tube holder (102) up to a first position and then the second machining head (124) flares the forward end part of the steel tube up to a specified flanging position.

Inventors:
Ogawa, Kiyoshi (95-2, Aza Mukaidate Tomitamach, Koriyama-shi Fukushima, 963-8041, JP)
Application Number:
PCT/JP2002/010906
Publication Date:
April 01, 2004
Filing Date:
October 22, 2002
Export Citation:
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Assignee:
Ogawa, Kiyoshi (95-2, Aza Mukaidate Tomitamach, Koriyama-shi Fukushima, 963-8041, JP)
International Classes:
B21D19/04; B23K31/00; B23P23/04; B23Q9/02; B24B9/00; (IPC1-7): B21D51/16; B21D19/04; B21D41/02; B23P23/02
Foreign References:
JP2002035849A
JPH0428422A
JPH0390220A
JPH10146623A
JPS5877719A
Other References:
See also references of EP 1543895A1
Attorney, Agent or Firm:
Kaneda, Nobuyuki (8th Floor, 16th Kowa Bldg. 9-20, Akasaka 1-chom, Minato-ku Tokyo, 107-0052, JP)
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