Method and device for detecting amplitude of vibration cutting tool
A technology of vibration cutting and amplitude detection, which is applied to measuring devices, vibration measurement in solids, and vibration measurement, and can solve the problems of high cost and difficult measurement of vibration cutting amplitude
Pending Publication Date: 2022-04-19
CHANGCHUN UNIV OF TECH
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[0004] In order to solve the problem of high cost and difficult measurement of vibration cutting amplitude, the embodiment of the present application provides a detection method and detection device for vibration cutting tool amplitude, which can more conveniently measure the vibration amplitude of the vibration cutting machine tool
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[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments . Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0022] The amplitude of vibratory cutting will be attenuated after being loaded, and the amplitude attenuation will affect the critical speed of the tool, thereby reducing the processing speed; the amplitude attenuation will also have a negative impact on the quality of the processed surface. At present, optical methods and laser interferometry are generally used to measure the amplitude of vibration cutting. These measurement methods all r...
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The invention discloses a method and a device for detecting the amplitude of a vibration cutting tool. The method and the device can detect the amplitude of the vibration cutting tool in real time. According to the method and the device, a charge amplifier is used for amplifying a charge signal of an acceleration sensor into a voltage signal, then acceleration data of a cutter are collected into an industrial personal computer through a data collection card, the industrial personal computer and a LabVIEW program, then acceleration time domain data are converted into acceleration frequency domain data through a fast Fourier transform algorithm, and the acceleration frequency domain data are converted into acceleration frequency domain data. And integrating the acceleration frequency domain data into amplitude frequency domain data by using a secondary frequency domain integration method, and finally converting the amplitude frequency domain data into amplitude time domain data by using Fourier inversion so as to obtain the amplitude of the vibration cutting tool. The equipment required by the method is simple, and the requirement on the detection environment is not high, so that the accuracy of amplitude measurement is ensured, and the detection cost is effectively controlled.
Description
technical field [0001] The present application relates to the field of measuring the amplitude of a vibrating cutting tool, in particular to a method and device for detecting the amplitude of a vibrating cutting tool. [0002] technical background [0003] The amplitude of vibratory cutting will be attenuated after being loaded, and the amplitude attenuation will affect the critical speed of the tool, thereby reducing the processing speed; the amplitude attenuation will also have a negative impact on the quality of the processed surface. At present, optical methods and laser interferometry are generally used to measure the amplitude of vibration cutting. These measurement methods all rely on expensive precision instruments. measurement data etc. This application uses an acceleration sensor to measure the vibration acceleration of the tool, and then uses a series of algorithms to realize the conversion from acceleration to amplitude. This method has low cost and does not have...
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IPC IPC(8): G01H1/16
CPCG01H1/16
Inventor 郝兆朋胡锋于保军史贺飞于浩
Owner CHANGCHUN UNIV OF TECH