CN103191859A - Single driven ultrasonic elliptical vibration transducer - Google Patents
Single driven ultrasonic elliptical vibration transducer Download PDFInfo
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- CN103191859A CN103191859A CN2013101646276A CN201310164627A CN103191859A CN 103191859 A CN103191859 A CN 103191859A CN 2013101646276 A CN2013101646276 A CN 2013101646276A CN 201310164627 A CN201310164627 A CN 201310164627A CN 103191859 A CN103191859 A CN 103191859A
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Abstract
The invention discloses a single driven ultrasonic elliptical vibration transducer. The single driven ultrasonic elliptical vibration transducer comprises an ultrasonic vibration transducer and an elliptical vibration mode converter, wherein the ultrasonic vibration transducer comprises a bolt and a rear cover plate, a piezoelectric ceramic piece, an electrode slice and a front cover plate which are sequentially sheathed on the bolt, the rear cover plate, the piezoelectric ceramic piece, the electrode slice and the front cover plate are tightly pressed and fixed by a front cover plate and the bolt through threaded connection, the elliptical vibration mode converter is arranged at the front end of the front cover plate and takes the shape of a cylinder on the whole, and three rectangular notches which are distributed in a staggered manner are respectively formed in the upper side and the lower side of the elliptical vibration mode converter and can be used for converting longitudinal ultrasonic vibration generated by the ultrasonic vibration transducer into longitudinal bending composite ultrasonic elliptical vibration. The single driven ultrasonic elliptical vibration transducer adopts a sandwich type structure, and has the advantages of high power capacity, simple structure, high energy conversion efficiency, stable working performance and the like.
Description
Technical field
The present invention relates to utilize the ultrasonic vibration field of piezoelectric ceramics inverse piezoelectric effect, especially relate to a kind of single excitation ultrasonic elliptical vibratory transducer.
Background technology
Ultrasonic elliptical vibratory has in fields such as UVC, ultra-sonic welded, ultrasonic grinding, ultrasonic polishing, linear ultrasonic motor and rotary ultrasonic motors more widely to be used.The researcher adopts extensional vibration mostly at present, twisting vibration, two kinds of vibration modes in flexural vibrations and the radial vibration carry out the compound ultrasonic elliptical vibratory that produces, need to adopt two groups or more piezoelectric ceramic piece to excite generation to have two or more mode of oscillations of certain phase difference, also be necessary for every group of piezoelectric ceramic piece and be equipped with one tunnel ultrasound-driven power supply signal, and need the phase difference between each road ultrasound-driven power supply signal of control, ultrasonic vibration system and control system complex structure, manufacture difficulty is big, control difficulty height, the production cost height, be difficult for realizing microminiaturized, service behaviour is stable inadequately, and these problems have restricted application and the popularization of ultrasonic elliptical vibratory transducer in industrial production.
In order to overcome the deficiency in the above-mentioned ultrasonic elliptical vibratory transducer technology, the 31st the 2nd phase of volume of " BJ University of Aeronautics ﹠ Astronautics's journal " February in 2005 is gone up paper " based on the elliptical vibration cutting transducer of finite element analysis ", a kind of asymmetric ultrasonic elliptical vibratory cutting of structure transducer of single signal of telecommunication excitation has been proposed, and this transducer finite element dynamic analysis and experimental study have been carried out, obtained experiment effect preferably, but to further improve extensional vibration to the conversion of flexural vibrations, improve the ratio of elliptical vibration track minor axis and major axis, improve cutting effect, the mode that only relies on luffing bar front end one side interpolation mass and cutter is dissatisfactory, and need twice physical connection from the luffing bar to additional mass and from the additional mass to the cutter, cause the ultrasonic vibrational energy loss from the PZT (piezoelectric transducer) to the cutter bigger, influenced the ultrasonic elliptical vibratory cutting effect.
Summary of the invention
The invention provides a kind of novel single excitation ultrasonic elliptical vibratory transducer, purpose is the deficiency that exists in above-mentioned single excitation ultrasonic vibration transducer in order to overcome.
A kind of single excitation ultrasonic elliptical vibratory transducer, comprise ultrasonic vibration transducer and elliptical vibration MODAL TRANSFORMATION OF A device, described ultrasonic vibration transducer comprises that bolt reaches back shroud, piezoelectric ceramic piece, electrode slice and the front shroud that is set in successively on the bolt, front shroud and bolt are fixed back shroud, piezoelectric ceramic piece, electrode slice and front shroud by thread connection, constituted the power conversion part of single excitation ultrasonic elliptical vibratory transducer, the ultrasonic electric energy of ultrasonic-frequency power supply output has been converted to the ultrasonic vibrational energy of ultrasonic transducer; Described elliptical vibration MODAL TRANSFORMATION OF A device is arranged on the front end of front shroud, its integral body is cylindrical, both sides offer three rectangular indentation that are dislocatedly distributed up and down, the purpose that rectangular indentation is set is in order to change the mode of oscillation of single excitation ultrasonic elliptical vibratory transducer, make its extensional vibration model frequency and flexural vibration mode frequency approaching or equal, when ultrasonic vibrational energy is delivered to elliptical vibration MODAL TRANSFORMATION OF A device end from the ultrasonic vibration transducer after, be converted to extensional vibration and the compound vertical curved composite ultrasonic elliptical vibratory of flexural vibrations with certain phase difference, namely be converted to the vertical curved composite ultrasonic elliptical vibratory of elliptical vibration MODAL TRANSFORMATION OF A device end.
Described elliptical vibration MODAL TRANSFORMATION OF A device and front shroud are made into the front end that an integral body is arranged on front shroud, perhaps utilize an additional attachment bolt elliptical vibration MODAL TRANSFORMATION OF A device to be connected in the front end of front shroud.Compare single excitation ultrasonic elliptical vibratory transducer that existing document is introduced, this list excitation ultrasonic elliptical vibratory transducer has that power capacity is big, energy conversion efficiency is high, simple in structure, easy to manufacture, advantage such as cost is low, the rigidity of structure is big, control-driven system is simple and vibration performance is stable.
Further, described single excitation ultrasonic elliptical vibratory transducer has only one group of extensional vibration piezoelectric ceramic piece.
Further, described single excitation ultrasonic elliptical vibratory transducer only needs one road ultrasonic signal of telecommunication excitation.
Further, the operating frequency range of single excitation ultrasonic elliptical vibratory transducer is 18kHz-40kHz.
The present invention has adopted mechanical oscillation MODAL TRANSFORMATION OF A mechanism the extensional vibration of ultrasonic transducer to be converted to the vertical curved composite ultrasonic elliptical vibratory of elliptical vibration MODAL TRANSFORMATION OF A device, simplified the overall structure of single excitation ultrasonic elliptical vibratory transducer, greatly reduce the complexity of vibrational system, manufacturing, assembly difficulty and production cost have been reduced, whole single excitation ultrasonic elliptical vibratory transducer architecture is simple, easy to manufacture, is conducive to the realization of microminiaturized target; This invention only needs No. one control circuit and the ultrasonic signal of telecommunication to encourage in addition, the control difficulty is low, avoided two-phase or multiphase ultrasonic vibration to be compounded to form the complicated ultrasonic-frequency power supply development cost of elliptical vibration transducer, control circuit and ultrasonic-frequency power supply structure have been simplified, control circuit and ultrasonic-frequency power supply cost have been reduced, control circuit and ultrasonic-frequency power supply volume have been reduced, be easy to realize the microminiaturization of control circuit and ultrasonic-frequency power supply, integrated, improved reliability, service behaviour is more stable, has a extensive future.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is application example schematic diagram of the present invention.
Number in the figure explanation: 1. bolt, 2. back shroud, 3. piezoelectric ceramic piece, 4. electrode slice, 5. front shroud, 6. elliptical vibration MODAL TRANSFORMATION OF A device, 7. rectangular indentation, 8. ultrasonic-frequency power supply
The specific embodiment
In conjunction with Fig. 1, shown in 2, a kind of single excitation ultrasonic elliptical vibratory transducer, comprise ultrasonic vibration transducer and elliptical vibration MODAL TRANSFORMATION OF A device 6, described ultrasonic vibration transducer comprises that bolt 1 reaches the back shroud 2 that is set in successively on the bolt 1, piezoelectric ceramic piece 3, electrode slice 4 and front shroud 5, front shroud 5 and bolt 1 by thread connection with back shroud 2, piezoelectric ceramic piece 3, electrode slice 4 and front shroud 5 are fixed, constituted the power conversion part of single excitation ultrasonic elliptical vibratory transducer, the ultrasonic electric energy of ultrasonic-frequency power supply 8 outputs can be converted to the ultrasonic vibrational energy of ultrasonic transducer, single excitation ultrasonic elliptical vibratory transducer has only one group of extensional vibration piezoelectric ceramic piece 3, piezoelectric ceramic transducer section diameter 30mm, piezoelectric ceramic piece 3 is PZT-8, is of a size of:
Ф 30 * Ф 15 * 5, the sheet number is 2.
Described elliptical vibration MODAL TRANSFORMATION OF A device 6 and front shroud 5 are made into the front end that an integral body is arranged on front shroud 5, elliptical vibration MODAL TRANSFORMATION OF A device 6 integral body are cylindrical, diameter 15mm, both sides offer three rectangular indentation that are dislocatedly distributed 7 up and down, three rectangular indentation 7 width are 6mm, and the degree of depth is 3mm, and the distance of the centre-to-centre spacing front end face of three rectangular indentation 7 is respectively 15mm, 25mm, 35mm.
Single excitation ultrasonic elliptical vibratory transducer intrinsic frequency is 25.32KHz, impedance is 96 ohm, dynamic electric resistor is 17 ohm, ultrasonic-frequency power supply 8 output voltage ranges are 0-400V, current range is 0-4A, output frequency is 25.32 ± 0.01KHz, and ultrasonic-frequency power supply 8 has the automatic frequency tracking function in designated frequency range.。
During operation, after the electrode slice 4 of single excitation ultrasonic elliptical vibratory transducer inserts the signal of telecommunication of ultrasonic-frequency power supply 8 outputs, because the inverse piezoelectric effect of piezoelectric ceramic piece 3, piezoelectric ceramic piece 3 will produce the longitudinal ultrasonic vibration, be that the electric energy that the ultrasonic vibration transducer is exported ultrasonic-frequency power supply 8 is converted to ultrasonic vibrational energy, and driving whole energy transducer system carries out the longitudinal ultrasonic vibration, when ultrasonic vibrational energy is delivered to elliptical vibration MODAL TRANSFORMATION OF A device 6 ends from the ultrasonic vibration transducer after, be converted to extensional vibration and the compound vertical curved composite ultrasonic elliptical vibratory of flexural vibrations with certain phase difference, namely be converted to the vertical curved composite ultrasonic elliptical vibratory of elliptical vibration MODAL TRANSFORMATION OF A device 6 ends.
When single excitation ultrasonic elliptical vibratory transducer on-load voltage, after moving 10 minutes and reaching the stable vibration state, the output voltage of ultrasonic-frequency power supply 8 is 240V, electric current is 1.45A, the ultrasonic elliptical vibratory length semiaxis amplitude that uses laser doppler vibrometer to record elliptical vibration MODAL TRANSFORMATION OF A device 6 ends is respectively 10.3 microns and 4.2 microns, and by the dual trace oscilloscope with lissajouf figure calculation function the signal that laser doppler vibrometer records is carried out graphic operation, can obtain axial ratio and be 2.45 ultrasonic elliptical vibratory track.
Claims (3)
1. a list encourages the ultrasonic elliptical vibratory transducer: comprise ultrasonic vibration transducer and elliptical vibration MODAL TRANSFORMATION OF A device, described ultrasonic vibration transducer comprises that bolt reaches back shroud, piezoelectric ceramic piece, electrode slice and the front shroud that is set in successively on the bolt, and front shroud and bolt are fixed back shroud, piezoelectric ceramic piece, electrode slice and front shroud by thread connection; It is characterized in that: described elliptical vibration MODAL TRANSFORMATION OF A device is arranged on the front end of front shroud, and its integral body is cylindrical, and both sides offer three rectangular indentation that are dislocatedly distributed up and down.
2. list according to claim 1 encourages the ultrasonic elliptical vibratory transducer, and it is characterized in that: described elliptical vibration MODAL TRANSFORMATION OF A device and front shroud are made into the front end that an integral body is arranged on front shroud.
3. single excitation ultrasonic elliptical vibratory transducer according to claim 1 is characterized in that: also comprise an attachment bolt, be used for elliptical vibration MODAL TRANSFORMATION OF A device is connected in the front end of front shroud.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310164627.6A CN103191859B (en) | 2013-05-08 | 2013-05-08 | Single driven ultrasonic elliptical vibration transducer |
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| CN201310164627.6A CN103191859B (en) | 2013-05-08 | 2013-05-08 | Single driven ultrasonic elliptical vibration transducer |
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| CN103191859A true CN103191859A (en) | 2013-07-10 |
| CN103191859B CN103191859B (en) | 2015-05-13 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103406250A (en) * | 2013-08-26 | 2013-11-27 | 苏州科技学院 | Single-excitation ultrasonic oval vibration energy converter |
| CN103447557A (en) * | 2013-08-26 | 2013-12-18 | 苏州科技学院 | Single-driven ultrasonic elliptical vibration turning device |
| CN104439891A (en) * | 2014-12-09 | 2015-03-25 | 苏州科技学院 | Single electrical signal excitation ultrasonic elliptic vibration extrusion processing device |
| CN104439683A (en) * | 2014-12-09 | 2015-03-25 | 苏州科技学院 | Single excitation ultrasonic elliptic vibration metal welding device |
| CN104440140A (en) * | 2014-12-09 | 2015-03-25 | 苏州科技学院 | Single electrical signal excitation ultrasonic elliptic vibration micro-machining working platform |
| CN104440573A (en) * | 2014-12-09 | 2015-03-25 | 苏州科技学院 | Single electrical signal excitation ultrasonic elliptic vibration grinding wheel dressing device |
| CN105587623A (en) * | 2015-05-08 | 2016-05-18 | 长春工业大学 | Sandwich type mode transition active water spraying propulsion device and driving method thereof |
| CN107930499A (en) * | 2018-01-05 | 2018-04-20 | 苏州科技大学 | A kind of ultrasonic wave disturbs hydrophone |
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| JPH0373207A (en) * | 1989-08-15 | 1991-03-28 | Taga Electric Co Ltd | Ultrasonic rotary machining device |
| JP3406165B2 (en) * | 1996-12-09 | 2003-05-12 | 愛三工業株式会社 | Ultrasonic transducer |
| CN101804575A (en) * | 2010-03-05 | 2010-08-18 | 清华大学 | Elliptical ultrasonic vibration auxiliary cutting device with adjustable track |
| CN102528572A (en) * | 2011-12-13 | 2012-07-04 | 河南理工大学 | Single driven ultrasonic elliptical vibrating device |
| CN103028540A (en) * | 2012-12-11 | 2013-04-10 | 杭州成功超声设备有限公司 | Ultrasonic tool head |
| CN203253608U (en) * | 2013-05-08 | 2013-10-30 | 苏州科技学院 | Single-actuator ultrasonic elliptical vibration transducer |
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2013
- 2013-05-08 CN CN201310164627.6A patent/CN103191859B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0373207A (en) * | 1989-08-15 | 1991-03-28 | Taga Electric Co Ltd | Ultrasonic rotary machining device |
| JP3406165B2 (en) * | 1996-12-09 | 2003-05-12 | 愛三工業株式会社 | Ultrasonic transducer |
| CN101804575A (en) * | 2010-03-05 | 2010-08-18 | 清华大学 | Elliptical ultrasonic vibration auxiliary cutting device with adjustable track |
| CN102528572A (en) * | 2011-12-13 | 2012-07-04 | 河南理工大学 | Single driven ultrasonic elliptical vibrating device |
| CN103028540A (en) * | 2012-12-11 | 2013-04-10 | 杭州成功超声设备有限公司 | Ultrasonic tool head |
| CN203253608U (en) * | 2013-05-08 | 2013-10-30 | 苏州科技学院 | Single-actuator ultrasonic elliptical vibration transducer |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103406250A (en) * | 2013-08-26 | 2013-11-27 | 苏州科技学院 | Single-excitation ultrasonic oval vibration energy converter |
| CN103447557A (en) * | 2013-08-26 | 2013-12-18 | 苏州科技学院 | Single-driven ultrasonic elliptical vibration turning device |
| CN103406250B (en) * | 2013-08-26 | 2015-08-05 | 苏州科技学院 | Single excitation ultrasonic elliptical vibratory transducer |
| CN104439891A (en) * | 2014-12-09 | 2015-03-25 | 苏州科技学院 | Single electrical signal excitation ultrasonic elliptic vibration extrusion processing device |
| CN104439683A (en) * | 2014-12-09 | 2015-03-25 | 苏州科技学院 | Single excitation ultrasonic elliptic vibration metal welding device |
| CN104440140A (en) * | 2014-12-09 | 2015-03-25 | 苏州科技学院 | Single electrical signal excitation ultrasonic elliptic vibration micro-machining working platform |
| CN104440573A (en) * | 2014-12-09 | 2015-03-25 | 苏州科技学院 | Single electrical signal excitation ultrasonic elliptic vibration grinding wheel dressing device |
| CN105587623A (en) * | 2015-05-08 | 2016-05-18 | 长春工业大学 | Sandwich type mode transition active water spraying propulsion device and driving method thereof |
| CN107930499A (en) * | 2018-01-05 | 2018-04-20 | 苏州科技大学 | A kind of ultrasonic wave disturbs hydrophone |
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| Publication number | Publication date |
|---|---|
| CN103191859B (en) | 2015-05-13 |
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Address after: 215021 No. 298 Binhe Road, Suzhou City, Jiangsu Province Patentee after: Suzhou University of Science and Technology Address before: 215001 No. 1 CREE Road, hi tech Zone, Jiangsu, Suzhou Patentee before: University of Science and Technology of Suzhou |
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Effective date of registration: 20191126 Address after: No. 88, Jinhe Road, bazha Town, Wujiang District, Suzhou City, Jiangsu Province Patentee after: Jiangsu Jiuxiang Aviation Equipment Co., Ltd Address before: 215021 No. 298 Binhe Road, Suzhou City, Jiangsu Province Patentee before: Suzhou University of Science and Technology |