	US 11,980,963 B2
	Ultrasonic welding device with position detection of joint partners
Frank Gassert, Bischoffen (DE); Stefan Müller, Wetzlar (DE); Rainer Wagenbach, Merenberg (DE); Waldemar Werner, Reiskirchen (DE); Daniel Günther, Langgöns (DE); Dariusz Kosecki, Biebertal (DE); Stephan Becker, Marburg (DE); and Eugen Koch, Grünberg (DE)
Assigned to SCHUNK SONOSYSTEMS GMBH, Wettenberg (DE)
Appl. No. 17/767,653
Filed by SCHUNK SONOSYSTEMS GMBH, Wettenberg (DE)
PCT Filed Nov. 5, 2019, PCT No. PCT/EP2019/080248 § 371(c)(1), (2) Date Apr. 8, 2022, PCT Pub. No. WO2021/089124, PCT Pub. Date May 14, 2021.
Prior Publication US 2024/0091874 A1, Mar. 21, 2024
Int. Cl. B23K 20/00 (2006.01); B23K 20/10 (2006.01); B23K 20/26 (2006.01); B23K 101/38 (2006.01)

CPC B23K 20/10 (2013.01) [B23K 20/004 (2013.01); B23K 20/26 (2013.01); B23K 2101/38 (2018.08)]

13 Claims

1. An ultrasonic welding device for detecting a desired positioning of joining partners to be welded inside the ultrasonic welding device, comprising:

a sonotrode;

an anvil;

a touching element;

a lateral slide;

a first stop element; and

a receiving chamber in which joining partners are to be received and which is defined by bordering components of the ultrasonic welding device;

wherein the receiving chamber is defined on a first side by a surface of the sonotrode and on a second side opposing the first side by a surface of the anvil;

wherein the receiving chamber is further defined on a third side by a surface of the touching element and on a fourth side opposing the third side by a surface of the lateral slide;

wherein the receiving chamber, at least in a positioning configuration which may be assumed by the first stop element, is further defined on a fifth side, extending transverse to the first to fourth sides, by a surface of the first stop element directed toward the receiving chamber;

wherein the first stop element is electrically conductive on its surface directed toward the receiving chamber in order to form a first electrode;

wherein at least one of the bordering components defining the receiving chamber, including the sonotrode, the anvil, the touching element and the lateral slide, is electrically conductive on its surface directed in each case toward the receiving chamber in order to form a second electrode;

wherein the ultrasonic welding device is configured to detect an electrical closure between the first electrode and the second electrode and, based thereon, to detect the desired positioning of at least one joining partner to be welded.