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Large-amplitude ultrasonic vibration cutting device

A cutting device, ultrasonic vibration technology, applied in fine working devices, fluids using vibration, metal processing, etc., can solve problems such as low amplitude, improve output power and amplitude ratio, increase vibration amplitude, application promising effect

Pending Publication Date: 2020-08-07
JITRI INST OF PRECISION MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a large-amplitude ultrasonic vibration cutting device in order to overcome the deficiency of low amplitude in the existing piezoelectric transducer

Method used

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Embodiment Construction

[0025] Embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0026] Such as Figure 1-6 As shown, a large-amplitude ultrasonic vibration cutting device in this embodiment includes a piezoelectric transducer, a primary horn 5, a secondary horn 7, an elastic horn 8, a cutter head 9 and a high-frequency power supply 62. Piezoelectric transducer The piezoelectric transducer is in the shape of a cylinder as a whole, including a bolt 1 and a back cover 2, a piezoelectric ceramic sheet 3, and electrodes that are sleeved on the bolt 1 from back to front and are connected and pressed together. The sheet 4 and the primary horn 5, the secondary horn 7 is fixed on the front end of the primary horn 5, the elastic horn 8 is fixed on the front end of the secondary horn 7, and the cutter head 9 is fixed on the elastic variable The front end of the rod 8, the electrode sheet 4 is connected to the high-frequency power su...

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Abstract

The invention relates to a large-amplitude ultrasonic vibration cutting device. The large-amplitude ultrasonic vibration cutting device comprises a piezoelectric transducer, a first-stage amplitude-change pole, a second-stage amplitude-change pole, an elastic amplitude-change pole, a tool bit and a high-frequency power supply, the piezoelectric transducer comprises a bolt and further comprises a rear cover plate, a piezoelectric ceramic piece, an electrode slice and the first-stage amplitude-change pole which are sequentially arranged on the bolt front back to front in a sleeving mode and mutually connected and compressed, the second-stage amplitude-change pole is fixed to the front end of the first-stage amplitude-change pole, the elastic amplitude-change pole is fixed to the front end ofthe second-stage amplitude-change pole, the tool bit is fixed to the front end of the elastic amplitude-change pole, the electrode slice is connected with the high-frequency power supply, the high-frequency power supply can provide an ultrasonic electric signal for the piezoelectric ceramic piece through the electrode slice to make the piezoelectric ceramic piece drive the whole piezoelectric transducer to axially vibrate, and the first-stage amplitude-change pole, the second-stage amplitude-change pole and the elastic amplitude-change pole amplify the vibration amplitude of the piezoelectrictransducer stage by stage. The output power and the output power ratio of the transducer can be effectively increased, in the case of the same power, a vibration amplitude value of a cutting tool canbe effectively increased, and the electricity-machine conversion efficiency is improved.

Description

technical field [0001] The invention relates to the field of ultrasonic vibration utilizing the inverse piezoelectric effect of piezoelectric ceramics, in particular to a large-amplitude longitudinal vibration cutting device. Background technique [0002] Ultrasonic cutting is a new technology that uses ultrasonic piezoelectric transducers to drive cutting tools to generate ultrasonic frequency vibrations, and transmits collision and impact energy to the medium to be cut, causing the material to be cut to be fatigued and broken to achieve the purpose of cutting. Ultrasonic cutting can process carbon fiber, glass fiber, Kevlar fiber, various honeycomb composite materials and hard and brittle materials such as optical glass, silicon crystal, ceramics, etc. more efficiently and accurately. In addition, because the cutting tool in contact with the biological tissue vibrates at a certain ultrasonic frequency, it can vaporize the water in the biological tissue, break the hydrogen ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B06B1/06B26B27/00B28D1/22B28D5/04
CPCB06B1/06B26B27/00B28D1/22B28D5/04
Inventor 陈玉荣苏宏华傅玉灿
Owner JITRI INST OF PRECISION MFG
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