WELDING APPARATUS

WIPO Patent Application WO/2014/157637

A1

This welding apparatus is provided with: a feeding mechanism (20) for feeding a cylindrical member (10) obtained by molding a plate member into a cylindrical shape in such a manner that a first end section (10a) and a second end section (10b) of the plate member face each other; a first pressing mechanism (30) that presses the cylindrical member (10) fed by the feeding mechanism (20) in such a manner that the first end section (10a) and the second end section (10b) face each other with a first spacer (38) therebetween; and a welding part (40) that is penetrated by a welding gun (44) and the cylindrical member (10), which is pressed by the first pressing mechanism (30) while being fed by the feeding mechanism (20), and has a guide member (42) that guides the cylindrical member (10) toward the welding gun (44) while holding the cylindrical member (10) in such a manner that the first end section (10a) and the second end section (10b) are maintained in a facing state with a second spacer (46) therebetween. Thus, the cylindrical member (10) is smoothly and continuously introduced to the welding part (40) while the facing state of the end sections of the cylindrical member, which are facing each other, is maintained, thereby enabling the end sections of the cylindrical member (10), which are in contact with one another, to be continuously welded.

NOMA NAOHIRO (JP)
IINO MASAMITSU (JP)
TANIGUCHI HIDESHI (JP)
SUGIYAMA YASUHIRO (JP)

PCT/JP2014/059188

October 02, 2014

March 28, 2014

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F TECH INC (JP)
FUJI MACHINE WORKS CO LTD (JP)
IWATANI CORP (JP)

B23K9/025; B21C37/08

JP2003080370A	2003-03-18
JPH05373A	1993-01-08
JPH09216094A	1997-08-19
US3590622A	1971-07-06

KAWAMOTO, Manabu et al. (JP)
Kawamoto Study (JP)

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