公开(公告)号：EP3527318A1

公开(公告)日：2019-08-21

申请号：EP18164460.0

申请日：2018-03-28

申请人： Newfrey LLC

发明人： BECKER, Adrian ,  EISENBERG, Christoph ,  HAIN, Jochen ,  KNETSCH, Harald ,  NAB, Nicolas

IPC分类号： B23K9/20

摘要： Joining head (10) for joining a stud which includes a radially projecting flange to workpieces and holding device (12) comprising:
- a collet component (16) having a clamping section and a hollow insertion section defining an insertion axis and adapted to receive a stud such that the stud can be inserted via the insertion section to the clamping section, the clamping section being adapted to exert a radially inwardly directed clamping force for clamping the stud;
- a securing device arranged on the insertion section and comprising a securing sleeve (30);
- a clearance space (32) defined between a bottom end of the securing sleeve and a top end of the clamping section, the clearance space being adapted to releasably receive a flange of a stud;
- a first air flow channel (C1) adapted to feed the stud in the collet, the first air flow channel being oriented in a first direction ;
wherein the holding device (12) further comprises at least a second airflow channel (C2, C2') oriented in a second direction different from the first direction, the second air flow channel being adapted to maintain the stud in a non-oblique position.