Patent ID: 7533791

Claim:
An arrangement for the welding of workpieces by means of an ultrasound welding device comprising a compression chamber into which the workpieces are inserted and which is defined by at least sections of a sonotrode emitting ultrasound vibrations and a counter electrode and a defining element which has a first defining surface that runs perpendicular to sections of the sonotrode and the counter electrode, as well as a sliding element with a second defining surface that is adjustable in relation to the first defining surface, wherein workpieces can, with the compression chamber open, be inserted into an insertion space which is defined by at least the sections of the sonotrode and the first defining surface of the defining element, the insertion space being defined by: sections of the sonotrode and the defining element, as well as by a guide element that runs with a guide section along the first defining surface of the defining element, where a gap (B) between the guide section of the guide element and the first defining surface is smaller than a gap between the first defining surface and the second defining space of the sliding element with the compression chamber open.