	US 11,890,694 B2
	Resistance spot welding apparatus and method for manufacturing a welded structure
Yoshiaki Nakazawa, Tokyo (JP); Tohru Okada, Tokyo (JP); Yasuhiro Ito, Tokyo (JP); Masanori Yasuyama, Tokyo (JP); and Yasunori Sawa, Tokyo (JP)
Assigned to NIPPON STEEL CORPORATION, Tokyo (JP)
Filed by NIPPON STEEL & SUMITOMO METAL CORPORATION, Tokyo (JP)
Filed on Jun. 15, 2020, as Appl. No. 16/901,765.
Application 16/901,765 is a division of application No. 15/120,543, abandoned, previously published as PCT/JP2015/057656, filed on Mar. 16, 2015.
Claims priority of application No. 2014-051085 (JP), filed on Mar. 14, 2014; and application No. 2014-175572 (JP), filed on Aug. 29, 2014.
Prior Publication US 2020/0306866 A1, Oct. 1, 2020
Int. Cl. B23K 11/16 (2006.01); B23K 11/11 (2006.01); B23K 11/30 (2006.01); B23K 11/31 (2006.01); B23K 35/02 (2006.01); B23K 101/00 (2006.01); B23K 101/18 (2006.01); B23K 103/04 (2006.01); B23K 101/28 (2006.01); C22C 38/38 (2006.01); C22C 38/02 (2006.01); C22C 38/00 (2006.01); C22C 38/18 (2006.01); C22C 38/06 (2006.01); C22C 38/04 (2006.01); F16B 5/08 (2006.01)

CPC B23K 11/16 (2013.01) [B23K 11/115 (2013.01); B23K 11/3009 (2013.01); B23K 11/31 (2013.01); B23K 35/02 (2013.01); B23K 35/0205 (2013.01); C22C 38/00 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/18 (2013.01); C22C 38/38 (2013.01); F16B 5/08 (2013.01); B23K 2101/006 (2018.08); B23K 2101/18 (2018.08); B23K 2101/185 (2018.08); B23K 2101/28 (2018.08); B23K 2103/04 (2018.08)]

3 Claims

1. A resistance spot welding apparatus comprising:

a first rod-shaped electrode body,

a second rod-shaped electrode body,

a first ring-shaped member,

a second ring-shaped member,

a first compression coil spring,

a second compression coil spring,

a first holder, and

a second holder, wherein

the first rod-shaped electrode body and the second rod-shaped electrode body are arranged facing each other,

the first ring-shaped member and the second ring-shaped member are arranged facing each other,

the first holder is fixed to the first rod-shaped electrode body on a side opposite to the second rod-shaped electrode body and the first holder is mounted on a spot welding gun,

the second holder is fixed to the second rod-shaped electrode body on a side opposite to the first rod-shaped electrode body and the second holder is mounted on a spot welding gun,

the first rod-shaped electrode body is inserted into a through hole of the first ring-shaped member,

the first compression coil spring is connected between the first ring-shaped member on a side opposite to the second rod-shaped electrode body and the first holder,

the first rod-shaped electrode body and the first ring-shaped member are not electrically connected each other,

the second rod-shaped electrode body is inserted into a through hole of the second ring-shaped member,

the second compression coil spring is connected between the second ring-shaped member on a side opposite to the first rod-shaped electrode body and the second holder, and

the second rod-shaped electrode body and the second ring-shaped member are not electrically connected each other.