The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 04, 2020
Filed:
Jul. 08, 2016
Sauer Gmbh, Stipshausen, DE;
Jens Ketelaer, Wiesbaden, DE;
SAUER GmbH, Stipshausen, DE;
Abstract
Methods for measuring a resonance frequency of a tool set in ultrasonic vibration during the machining of a workpiece, involving radiating a working signal with a working frequency into a tool holder comprising a tool by a generator to produce the ultrasonic vibration of the tool; after the start of the machining of the workpiece, radiating a test signal with a test frequency varying by the working frequency and a lower power than the working signal power into the tool holder by the generator; generating a sensor signal from the ultrasonic vibration of the tool by a sensor apparatus arranged in the tool holder; reading out the sensor signal by a read-out apparatus; splitting the sensor signal into a frequency spectrum involving a main frequency and an auxiliary frequency by an analytical apparatus; determining the main frequency from the working frequency and the auxiliary frequency from the resonance frequency.