公开(公告)号：EP2514549A1

公开(公告)日：2012-10-24

申请号：EP12164628.5

申请日：2012-04-18

Applicant: NHK Spring Co., Ltd.

Inventor： Nakane, Toshihiro ,  Danura, Toshikatsu ,  Kuroda, Keishirou

IPC: B23K11/14 ,  B23K11/11

CPC classification number: B23K11/14 ,  B23K11/115 ,  B23K2201/006 ,  Y10T428/12347

Abstract: A projection welding apparatus (50) for welding a first plate member (22) having plural welding projections (28) and a second plate member (24A), the apparatus comprising a first electrode (42); a second electrode (40), the first and second plate members are provided between the first and second electrodes, the second plate member includes a facing portion (32) and an extension portion (30) extending from the facing portion towards the first plate member and an end face of the extension portion abuts with the welding projections (28); a pressing unit (56) causing the second electrode (40) to approach the first electrode (42), and presses the end face of the extension portion against the welding projections via the second electrode; a voltage application unit (54) causing current to flow in the first and second plate members; and a stopper member (44), disposed between the first electrode and the facing portion (32), is contacted against the facing portion of the second plate member, and electrically connects the facing portion and the first electrode so as to bypass the first plate member.

Abstract translation: 一种用于焊接具有多个焊接突起（28）和第二板构件（24A）的第一板构件（22）的突起焊接装置（50），该装置包括第一电极（42）; 第二电极（40），第一和第二板构件设置在第一和第二电极之间，第二板构件包括面对部分（32）和延伸部分（30），其从面对部分朝向第一板构件 并且所述延伸部的端面与所述焊接突起（28）抵接; 使第二电极（40）接近第一电极（42）的按压单元（56），并且经由第二电极将延伸部分的端面压靠焊接突起; 电压施加单元（54），其使电流在第一和第二板构件中流动; 并且设置在所述第一电极和所述相对部分（32）之间的止动构件（44）与所述第二板构件的相对部分接触，并且将所述面对部分和所述第一电极电连接以绕过所述第一板 会员。