Device for generating an ultrasonic vibration of a tool and for measuring vibration parameters
AssigneeSauer Inc.
InventorJens Ketelaer
Life of this patent
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Abstract
The present invention relates to a device for generating an ultrasonic vibration of a tool used for the ultrasonic machining of a workpiece and for measuring ultrasonic vibration parameters of the ultrasonic vibration of the tool having a tool holder for receiving the tool, an ultrasonic transducer in the tool holder for generating the ultrasonic vibration of the tool, a sensor mechanism in the tool holder for producing a sensor signal on the basis of the ultrasonic vibration of the tool, and a sensor signal evaluation device for evaluating the sensor signal.
Claims16
A device configured to generate an ultrasonic vibration in a tool for ultrasonic machining of a workpiece and for measuring ultrasonic vibration parameters of the ultrasonic vibration of the tool, comprising
- a tool holder configured to receive the tool,
- an ultrasonic transducer in the tool holder, the ultrasonic transducer configured to generate the ultrasonic vibration in the tool,
- a sensor mechanism in the tool holder configured to produce a sensor signal based on the ultrasonic vibration of the tool, and
- a sensor signal evaluation device configured to analyze the sensor signal;
- wherein
- the sensor mechanism comprises a one-piece element made of piezoelectric material and a plurality of electrode segments configured to detect ultrasonic vibration portions in an axial direction of the tool and bending vibration portions of the ultrasonic vibration of the tool.
A method for measuring ultrasonic vibration parameters of a tool for the ultrasonic machining of a workpiece, the method comprising:
- setting a tool received in a tool holder in ultrasonic vibration;
- producing a sensor signal on the basis of the ultrasonic vibration of the tool by means of a sensor mechanism in the tool holder;
- sending the sensor signal from the sensor mechanism to a transmitter element, which is connected to the sensor mechanism, in the tool holder;
- transmitting the sensor signal from the transmitter element to a receiver element, which is spaced apart from the transmitter element;
- sending the sensor signal from the receiver element to a sensor signal evaluation device;
- evaluating the sensor signal in the sensor signal evaluation device to determine the ultrasonic vibration parameters of the tool;
- wherein
- the sensor mechanism comprises a one-piece element made of piezoelectric material and a plurality of electrode segments configured to detect ultrasonic vibration portions in an axial direction of the tool and bending vibration portions of the ultrasonic vibration of the tool.
Dependencies are inferred from the claim text.