Ultrasonic welding device comprising a force sensor

An ultrasonic welding device, comprising:

• a sonotrode arrangement,
• an anvil,
• a displacement device, and
• a force sensor,
• wherein the sonotrode arrangement comprises a sonotrode head,
• wherein the sonotrode arrangement is configured to transmit ultrasonic vibrations,
• which are generated at the sonotrode arrangement in a region remote from the sonotrode head, to the sonotrode head such that the sonotrode head vibrates in a vibration direction of the sonotrode arrangement and that the sonotrode arrangement vibrates minimally in the vibration direction at a zero-point position which is arranged spaced apart from the sonotrode head, based on the vibration direction,
• wherein the displacement device is configured to displace the sonotrode arrangement and the anvil relative to one another in a displacement direction,
• wherein the force sensor is positioned in a contact region adjacent to the zero-point position and is configured in such a manner that, with the aid of the force sensor, forces which are exerted by the sonotrode arrangement on the force sensor parallel to the displacement direction may be measured.