US 12,343,814 B2
Device and method for welding together conductor ends of a component of an electric machine
Konstantin Hofmann, Mindelheim (DE); and René Schürer, Mering St. Afra (DE)
Assigned to GROB-WERKE Gmbh & Co. KG, Mindelheim (DE)
Filed by GROB-WERKE Gmbh & Co. KG, Mindelheim (DE)
Filed on Sep. 28, 2020, as Appl. No. 17/034,299.
Claims priority of application No. 102019126158.9 (DE), filed on Sep. 27, 2019; and application No. 20174325 (EP), filed on May 13, 2020.
Prior Publication US 2021/0138586 A1, May 13, 2021
Int. Cl. B23K 26/00 (2014.01); B23K 26/03 (2006.01); B23K 26/082 (2014.01); B23K 26/24 (2014.01); H02K 15/00 (2025.01)
CPC B23K 26/24 (2013.01) [B23K 26/032 (2013.01); B23K 26/082 (2015.10)] 16 Claims
OG exemplary drawing
 
1. A device to weld together conductor ends disposed on a component of an electric machine in a conductor end assembly, comprising:
an illuminating device to illuminate at least one partial area of the conductor end assembly, wherein the at least one partial area contains a plurality of conductor ends to be welded together into a plurality of groups of conductor ends, wherein each conductor end is only in a single group and only welded to conductor ends in the single group,
an optical recognition device to recognize a position of the illuminated conductor end assembly, wherein the optical recognition device is configured to record at least one image of the at least one partial area which contains the plurality of the conductor end groups to be welded together and detecting positions of each of the plurality of the conductor end groups by image processing on the image,
a laser device capable of directing, depending on the recognized position, a laser beam onto each of the groups of the conductor ends, which is to be welded together, of the at least one partial area, and
a mount with a clamping device which functions as a welding template, which is configured to hold the component stationary relative to the laser device during a welding process to weld together all conductor end groups of the at least one partial area,
wherein the laser device is held in a stationary manner during the processing of at least two of the at least one partial areas of the conductor end assembly with a plurality of conductor end groups to be welded together and is moved only in order to switch to different partial areas of the at least one partial areas of the conductor end assembly.