GB1438674A - Apparatus for tack welding of flanges - Google Patents

Apparatus for tack welding of flanges

Info

Publication number
GB1438674A
GB1438674A GB2632673A GB2632673A GB1438674A GB 1438674 A GB1438674 A GB 1438674A GB 2632673 A GB2632673 A GB 2632673A GB 2632673 A GB2632673 A GB 2632673A GB 1438674 A GB1438674 A GB 1438674A
Authority
GB
United Kingdom
Prior art keywords
flanges
pipe
jaws
centres
welding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2632673A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Engineering and Shipbuilding Co Ltd
Original Assignee
Mitsui Engineering and Shipbuilding Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsui Engineering and Shipbuilding Co Ltd filed Critical Mitsui Engineering and Shipbuilding Co Ltd
Publication of GB1438674A publication Critical patent/GB1438674A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
    • B23K37/0536—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor for maintaining flanges on tubes

Abstract

1438674 Welding by fusion MITSUI SHIPBUILDING & ENG CO Ltd 1 June 1973 [2 June 1972] 26326/73 Heading B3R In a machine for tack welding flanges 24 to the ends of a pipe 1, upper and lower jaws 2, 2a, arranged to support the pipe ends and abut the flanges, carry torches 9 which are directed towards the junctions of the pipe and the flanges. In preparation for welding the flanges to the pipe, (i) the upper and lower jaws are moved to radially inward positions and members 8 are also moved radially inwards to positions in which spring-pressed plungers 10 thereof are in position to enter respective flange bolt holes, (ii) the flanges are caused to fall on to pins 5 of the lower jaws to be thereby positioned with their axes slightly lower than that of a notional pipe, (iii) conical centres 13 are axially advanced pneumatically to press the flanges against the jaws and align the flanges with the notional pipe axis; (iv) the centres are rotated by stepping motors 22, via gearing 23, 21 and cylinders 16 fast in rotation with, but slidable with respect to, the centres, to frictionally rotate the flanges until the plungers 10 are able to move to enter respective flange bolt holes and station the flanges and to actuate switches 12 to stop the motors 22, (v) the cylinders 16 and hence electromagnets 15 thereon are axially advanced pneumatically to attract the flanges thereto, (vi) the electromagnets together with the centres and the attracted flanges are withdrawn, (vii) the upper jaws 2 and the members 8 are withdrawn, and the lower jaws 2a are moved to their pipe engaging positions, (viii) the pipe is placed on the lower jaws and gripped by lowering of the upper jaws, and (ix) the centres and electromagnets are advanced with the flanges, the centres acting to centre the pipe along its axis, and by engagement of the cones of the centres with both the flange apertures and pipe bore ends, to locate the flanges with respect to the pipe. After welding, all the jaws are withdrawn and the flanged pipe is allowed to fall to a further operational position. Of the two parts of the locating apparatus at each end of the pipe, one is stationary and the other, B, is axially movable to suit pipe length. The jaws 2, 2a and the members 8 are moved by feed screws 4, 7 driven by stepping motors 3, 6.
GB2632673A 1972-06-02 1973-06-01 Apparatus for tack welding of flanges Expired GB1438674A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47054955A JPS5121387B2 (en) 1972-06-02 1972-06-02

Publications (1)

Publication Number Publication Date
GB1438674A true GB1438674A (en) 1976-06-09

Family

ID=12985077

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2632673A Expired GB1438674A (en) 1972-06-02 1973-06-01 Apparatus for tack welding of flanges

Country Status (5)

Country Link
JP (1) JPS5121387B2 (en)
CA (1) CA978400A (en)
ES (1) ES415275A1 (en)
GB (1) GB1438674A (en)
NL (1) NL7307557A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109079281A (en) * 2018-09-13 2018-12-25 武汉冶钢结构有限责任公司 The welding method of spherical tank manhole flange and manhole flange
CN111069839A (en) * 2019-11-15 2020-04-28 中建材轻工业自动化研究所有限公司 Positioning rotary position changing device
CN113042970A (en) * 2021-04-23 2021-06-29 中船澄西扬州船舶有限公司 Positioning tool for assembling pipe fitting and flange
CN113909707A (en) * 2021-10-25 2022-01-11 大展智能装备(广东)有限责任公司 Pipe clamping device and pipe cutting machine

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4914538B1 (en) * 1970-12-01 1974-04-08
JPS52122240A (en) * 1976-04-07 1977-10-14 Yaskawa Denki Seisakusho Kk Method of fabricating flanged pipes
JPS58134290U (en) * 1982-02-27 1983-09-09 株式会社福嶋鉄工所 Welding head suitable for pipe fillet welding on the body side tube plate surface, etc.
CN110480251A (en) * 2019-09-11 2019-11-22 襄阳中和机电技术有限公司 A kind of flange adapting to more specifications and steel pipe fixed-position welding device
CN114952054B (en) * 2022-03-15 2024-03-19 无锡市华立石化工程有限公司 Welding method for upper flat cover and lower flat cover of reactor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109079281A (en) * 2018-09-13 2018-12-25 武汉冶钢结构有限责任公司 The welding method of spherical tank manhole flange and manhole flange
CN111069839A (en) * 2019-11-15 2020-04-28 中建材轻工业自动化研究所有限公司 Positioning rotary position changing device
CN113042970A (en) * 2021-04-23 2021-06-29 中船澄西扬州船舶有限公司 Positioning tool for assembling pipe fitting and flange
CN113909707A (en) * 2021-10-25 2022-01-11 大展智能装备(广东)有限责任公司 Pipe clamping device and pipe cutting machine

Also Published As

Publication number Publication date
JPS4914340A (en) 1974-02-07
CA978400A (en) 1975-11-25
DE2328105B2 (en) 1976-01-29
NL7307557A (en) 1973-12-04
JPS5121387B2 (en) 1976-07-02
DE2328105A1 (en) 1973-12-20
ES415275A1 (en) 1976-02-01

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Legal Events

Date Code Title Description
PS Patent sealed
49R Reference inserted (sect. 9/1949)
SP Amendment (slips) printed
PCNP Patent ceased through non-payment of renewal fee