Ultra-magnetostriction window-shaped elliptic composite vibration transducer and transduction method

A technology of giant magnetostriction and giant magnetostrictive rod is applied in the direction of fluid using vibration, which can solve the problems of low output power and complex structure of the transducer, reduce cutting force, improve processing quality, and simple device structure. Effect

Inactive Publication Date: 2020-09-25
SHAANXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problems of complex structure and low output power of existing transducers, the present invention provides a giant magnetostrictive window-shaped elliptical composite vibration transducer and a transduction method with simple structure and high power output.

Method used

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  • Ultra-magnetostriction window-shaped elliptic composite vibration transducer and transduction method
  • Ultra-magnetostriction window-shaped elliptic composite vibration transducer and transduction method
  • Ultra-magnetostriction window-shaped elliptic composite vibration transducer and transduction method

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Experimental program
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Embodiment 1

[0037] see figure 1 as well as figure 2 , the giant magnetostrictive window-shaped elliptical composite vibration transducer provided in this embodiment includes a rear cover 2, a vibration telescopic unit 4, a wedge 5 and a horn 7 arranged in sequence from top to bottom; the rear cover 2 , the vibration expansion unit 4 and the wedge block 5 are fixed, the wedge block 5 is fixedly connected with the horn 7, and forms elliptical compound vibration on the output end of the horn 7, and the overall structure is simple.

[0038] In this embodiment, the rear cover plate 2 is a cylinder, the vibration telescopic unit 4 is a window-shaped structure, and the horn 7 includes a circular platform section, a large cylindrical section and a small cylindrical section connected sequentially from top to bottom; the large circular end surface of the circular platform section A flange is arranged on the top, and the flange is connected with the wedge block 5; the small round end face of the c...

Embodiment 2

[0046] On the basis of Embodiment 1, the materials of the rear cover plate 2 and the horn 7 are all stainless steel; the material of the wedge block 5 is aluminum alloy; the material of the giant magnetostrictive rod 10 is Terfenol-D; the material of the magnetizer 9 It is electrical pure iron; the material of the permanent magnet 11 is NdFeB.

[0047] The diameter of the back cover 2 is 36mm, and the length is 36.5mm; the specification of the giant magnetostrictive rod 10 is 15mm×7.5mm×35mm; the material of the magnetizer 9 is electrical pure iron; the specification of the permanent magnet 11 is 15mm×7.5mm ×3mm; the diameter of the large flange of the horn 7 is 60mm, and the length is 5mm; The diameter is 15mm and the length is 51mm.

[0048] Further, the included angle (angle θ) between the two slopes of the wedge block 8 and the diameter of the wedge block 8 affect the vibration frequency, lateral displacement, longitudinal displacement and phase difference of the transduc...

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Abstract

The invention relates to an ultra-magnetostriction window-shaped elliptic composite vibration transducer and a transduction method. The transducer comprises a rear cover plate, a vibration telescopicunit, a wedge block and an amplitude-change pole which are sequentially mounted from top to bottom, the rear cover plate, the vibration telescopic unit and the wedge block are fixed, the wedge block is fixedly connected with the amplitude-change pole, the wedge block is provided with two slopes, one slope is in contact with the lower end face of the vibration telescopic unit, the other slope is incontact with the end face of the amplitude-change pole and is fixed through a screw rod, the included angle between the two slopes of the wedge block is 10 to 60 degrees, the wedge block converts vibration, generated by the vibration telescopic unit, in the single direction into elliptic composite vibration in the two directions, through the angle and the size of the wedge block, the output frequency and the track of the transducer can be adjusted, and the transducer has the advantages that the structure is simple, the leakage flux is small, large-vibration-amplitude elliptic vibration outputwith the adjustable vibration track is achieved, and the power output is large.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic processing, and relates to a giant magnetostrictive window-shaped elliptical composite vibration transducer and a method for converting energy. Background technique [0002] Ultrasonic machining technology is a technology that uses ultrasonic vibration for precision or ultra-precision machining. Compared with ordinary machining, ultrasonic machining has the outstanding advantages of significantly reducing cutting force, improving machining quality, reducing tool wear and improving machining efficiency. ; The direction and form of ultrasonic vibration output have an important impact on processing quality and processing efficiency. Compared with single-phase vibration, elliptical vibration has lower cutting force and better process effect. [0003] The current elliptical vibration is mainly to apply excitation to two independent piezoelectric ceramic stacks, thereby generating longitudinal ultras...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B06B1/08B06B3/02
CPCB06B1/08B06B3/02B06B2201/58
Inventor 贺西平刘强
Owner SHAANXI NORMAL UNIV
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