Patent ID: 7984839

Claim:
An ultrasonic welding device for welding two components comprising: first and second converters, a rod-shaped first sonotrode for generation of longitudinal waves coupled on its first end to the first converter and on its second end opposite the first end to the second converter, wherein a first welding surface is provided in a middle of the first sonotrode, at least one pair of third converters, and a second sonotrode which is coupled via a third booster with the at least one pair of third converters coupled together via a transmission element being tangentially coupled to a torsion rod extending from the third booster, the second sonotrode being configured as a torsion sonotrode having a second welding surface arranged opposite the first welding surface, wherein the first sonotrode and the second sonotrode are relatively movable against each other such that a welding force can be applied between the first and the second welding surface to the components to be welded together.