ELECTRIC RESISTANCE WELDING DEVICE

To provide an electric resistance welding device which can perform smooth welding work.SOLUTION: An electric resistance welding device 101 includes: an electrode chip 20 having a rivet pressing surface 21 for pressing a rivet W to one surface 10a of both surfaces 10a, 10b of a laminated body 10; a shaft member 30 which extends in an axial direction X and holds the electrode chip 20 on a shaft end part 30a; a cylindrical storage body 40 which stores the shaft member 30 in such a manner that the shaft member 30 can slide in the axial direction X; and a driving mechanism part 50 which drives the shaft member 30. The driving mechanism part 50 is configured to drive the shaft member 30 in the axial direction X relative to the storage body 40 between a lowered position P1 where the rivet pressing surface 21 of the electrode chip 20 protrudes from a tip part 44 of the storage body 40 in the axial direction X and an elevated position where the rivet pressing surface 21 of the electrode chip 20 and an inner wall surface of the tip part 44 of the storage body 40 form a housing recessed part S capable of housing the rivet W.SELECTED DRAWING: Figure 1 【課題】 溶接作業を円滑に行うことができる電気抵抗溶接装置を提供する。【解決手段】 電気抵抗溶接装置１０１は、積層体１０の両面１０ａ，１０ｂのいずれか一方の面１０ａにリベットＷを押し付けるためのリベット押圧面２１を有する電極チップ２０と、軸方向Ｘに延びており電極チップ２０を軸端部３０ａに保持する軸部材３０と、軸部材３０を軸方向Ｘにスライド可能に収容する筒状の収容体４０と、軸部材３０を駆動する駆動機構部５０と、を備え、駆動機構部５０は、電極チップ２０のリベット押圧面２１が軸方向Ｘについて収容体４０の先端部４４から突出する下降位置Ｐ１と、電極チップ２０のリベット押圧面２１と収容体４０の先端部４４の内壁面とでリベットＷを収容可能な収容凹部Ｓを形成する上昇位置との間で、軸部材３０を収容体４０に対して軸方向Ｘに駆動可能に構成されている。【選択図】図１