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1. (WO2018184956) ULTRASONIC MACHINE TOOL COMPRISING TWO SONOTRODES AND METHOD FOR OPERATING SAME

Pub. No.:    WO/2018/184956    International Application No.:    PCT/EP2018/057993
Publication Date: Fri Oct 12 01:59:59 CEST 2018 International Filing Date: Thu Mar 29 01:59:59 CEST 2018
IPC: B06B 1/02
Applicants: HERRMANN ULTRASCHALLTECHNIK GMBH & CO. KG
Inventors: GNAD, Gerhard
Title: ULTRASONIC MACHINE TOOL COMPRISING TWO SONOTRODES AND METHOD FOR OPERATING SAME
Abstract:
The present invention relates to an ultrasonic machine tool comprising a first sonotrode (2) with a first resonant frequency f1, a first converter (4) which is connected to the first sonotrode (2), and a generator (1) with a generator output for generating a first electrical alternating voltage with the first frequency f1 and for outputting the first electrical alternating voltage at the generator output, the generator output being connected to the first converter (4). According to the invention, a second sonotrode (3) with a second resonant frequency h and a second converter (5) which is connected to the second sonotrode (3) are provided, wherein the generator output is connected to the second converter (5) and the generator (1) is designed to produce a mix signal which has the first electrical alternating voltage and a second electrical alternating voltage with the second frequency h, and to output the mix signal at the generator output, and wherein the first frequency f1 and the second frequency f2 differ from one another.