CN203253608U - Single-actuator ultrasonic elliptical vibration transducer - Google Patents
Single-actuator ultrasonic elliptical vibration transducer Download PDFInfo
- Publication number
- CN203253608U CN203253608U CN 201320241879 CN201320241879U CN203253608U CN 203253608 U CN203253608 U CN 203253608U CN 201320241879 CN201320241879 CN 201320241879 CN 201320241879 U CN201320241879 U CN 201320241879U CN 203253608 U CN203253608 U CN 203253608U
- Authority
- CN
- China
- Prior art keywords
- ultrasonic
- elliptical vibration
- elliptical
- cover plate
- transducer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses a single-actuator ultrasonic elliptical vibration transducer which comprises an ultrasonic vibration transducer body and an elliptical vibration mode converter. The ultrasonic vibration transducer body comprises a bolt, a rear cover plate, piezoelectric ceramic pieces, an electrode slice and a front cover plate, wherein the bolt is sleeved with the rear cover plate, the piezoelectric ceramic pieces, the electrode slice and the front cover plate in sequence, and the front cover plate and the bolt enable the rear cover plate, the piezoelectric ceramic pieces and the electrode sheet to be compacted and fixed with the front cover plate through threaded connection. The elliptical vibration mode converter is arranged at the front end of the front cover plate, the overall elliptical vibration mode converter is cylindrical, three rectangular gaps are formed in the upper side and the lower side of the elliptical vibration mode converter in a staggered mode, and the elliptical vibration mode converter can convert longitudinal ultrasonic vibration generated by the ultrasonic vibration transducer body into longitudinal and curved composite ultrasonic elliptical vibration. A sandwich type structure is applied to the single-actuator ultrasonic elliptical vibration transducer. In addition, the single-actuator ultrasonic elliptical vibration transducer has the advantages of being large in power capacity, simple in structure, high in energy conversion efficiency, stable in working performance and the like.
Description
Technical field
The utility model relates to the ultrasonic vibration field that utilizes the piezoelectric ceramics inverse piezoelectric effect, especially relates 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 large, the control difficulty is high, production cost is high, be difficult for realizing microminiaturized, service behaviour is stable not, 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, upper paper of the 2nd phase of the 31st volume " BJ University of Aeronautics ﹠ Astronautics's journal " February in 2005 " 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 preferably experiment effect, 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 ultrasonic transformer front end one side interpolation mass and cutter is dissatisfactory, and from the ultrasonic transformer to the additional mass and from the additional mass to the cutter, need twice physical connection, cause the ultrasonic vibrational energy loss from the PZT (piezoelectric transducer) to the cutter larger, affected the ultrasonic elliptical vibratory cutting effect.
Summary of the invention
The utility model provides a kind of novel single excitation ultrasonic elliptical vibratory transducer, and 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, consisted of 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 a whole installation at the front end of 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 of existing Introduction of Literatures, this list excitation ultrasonic elliptical vibratory transducer has that power capacity is large, energy conversion efficiency is high, simple in structure, easy to manufacture, the advantage such as cost is low, the rigidity of structure is large, control-driven system is simple and vibration performance is stable.
Further, described single excitation ultrasonic elliptical vibratory transducer only has one group of extensional vibration piezoelectric ceramic piece.
Further, described single excitation ultrasonic elliptical vibratory transducer only needs the excitation of one road ultrasonic electric signal.
Further, the operating frequency range of single excitation ultrasonic elliptical vibratory transducer is 18kHz-40kHz.
The utility model 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 utility model only needs No. one control circuit and ultrasonic electric signal 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 utility model.
Fig. 2 is application example schematic diagram of the present utility model.
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, consisted of 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 only has 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 a whole installation at the front end of 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, behind the signal of telecommunication of electrode slice 4 access ultrasonic-frequency power supplies 8 outputs of single excitation ultrasonic elliptical vibratory transducer, 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 drive whole transducer system and carry out 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 a whole installation at the front end of 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320241879 CN203253608U (en) | 2013-05-08 | 2013-05-08 | Single-actuator ultrasonic elliptical vibration transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320241879 CN203253608U (en) | 2013-05-08 | 2013-05-08 | Single-actuator ultrasonic elliptical vibration transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203253608U true CN203253608U (en) | 2013-10-30 |
Family
ID=49466217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320241879 Expired - Lifetime CN203253608U (en) | 2013-05-08 | 2013-05-08 | Single-actuator ultrasonic elliptical vibration transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203253608U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103191859A (en) * | 2013-05-08 | 2013-07-10 | 苏州科技学院 | Single driven ultrasonic elliptical vibration transducer |
| CN103920635A (en) * | 2014-04-18 | 2014-07-16 | 北京航空航天大学 | Longitudinal torsion composite supersonic vibration machining device |
| CN104410322A (en) * | 2014-12-09 | 2015-03-11 | 苏州科技学院 | Single electric signal excited ultrasound elliptic-vibration multi-vibrator material conveying device |
| CN104440507A (en) * | 2014-12-09 | 2015-03-25 | 苏州科技学院 | Single electrical signal excitation ultrasonic elliptic vibration polishing device |
| CN104438029A (en) * | 2014-12-09 | 2015-03-25 | 苏州科技学院 | Single excitation ultrasonic elliptic vibration micro-machining working platform |
| CN104438028A (en) * | 2014-12-09 | 2015-03-25 | 苏州科技学院 | Single excitation ultrasonic elliptic vibration transducer |
-
2013
- 2013-05-08 CN CN 201320241879 patent/CN203253608U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103191859A (en) * | 2013-05-08 | 2013-07-10 | 苏州科技学院 | Single driven ultrasonic elliptical vibration transducer |
| CN103191859B (en) * | 2013-05-08 | 2015-05-13 | 苏州科技学院 | Single driven ultrasonic elliptical vibration transducer |
| CN103920635A (en) * | 2014-04-18 | 2014-07-16 | 北京航空航天大学 | Longitudinal torsion composite supersonic vibration machining device |
| CN103920635B (en) * | 2014-04-18 | 2016-03-02 | 北京航空航天大学 | A kind of longitudinal-torsional composite ultrasonic vibration processing device |
| CN104410322A (en) * | 2014-12-09 | 2015-03-11 | 苏州科技学院 | Single electric signal excited ultrasound elliptic-vibration multi-vibrator material conveying device |
| CN104440507A (en) * | 2014-12-09 | 2015-03-25 | 苏州科技学院 | Single electrical signal excitation ultrasonic elliptic vibration polishing device |
| CN104438029A (en) * | 2014-12-09 | 2015-03-25 | 苏州科技学院 | Single excitation ultrasonic elliptic vibration micro-machining working platform |
| CN104438028A (en) * | 2014-12-09 | 2015-03-25 | 苏州科技学院 | Single excitation ultrasonic elliptic vibration transducer |
| CN104438028B (en) * | 2014-12-09 | 2016-08-24 | 苏州科技学院 | A kind of single excitation ultrasonic elliptical vibratory transducer |
| CN104438029B (en) * | 2014-12-09 | 2016-08-24 | 苏州科技学院 | A kind of single excitation ultrasonic elliptical vibratory microfabrication work platforms |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103191859B (en) | Single driven ultrasonic elliptical vibration transducer | |
| CN103406250B (en) | Single excitation ultrasonic elliptical vibratory transducer | |
| CN203253608U (en) | Single-actuator ultrasonic elliptical vibration transducer | |
| CN103192097B (en) | Single driven ultrasonic elliptical vibration turning device | |
| CN103447557A (en) | Single-driven ultrasonic elliptical vibration turning device | |
| CN103414370B (en) | Singly encourage linear ultrasonic motor | |
| CN104607671B (en) | Single-excitation ultrasound oval vibration turning device | |
| CN203401087U (en) | Single-excitation ultrasonic oval vibrating turning device | |
| CN103414373A (en) | Single-incentive rotating ultrasonic motor | |
| CN103746597A (en) | Paster T-shaped dual-feet linear piezoelectric supersonic motor vibrator | |
| CN101777852A (en) | Double-stator bending mode linear ultrasonic motor and operation mode and electric excitation method | |
| CN104438028B (en) | A kind of single excitation ultrasonic elliptical vibratory transducer | |
| CN103401470B (en) | Bi-directional drive linear ultrasonic motor | |
| CN203484326U (en) | Single-actuator ultrasonic elliptical vibration transducer | |
| CN103199731B (en) | One singly encourages linear ultrasonic motor | |
| CN204320630U (en) | A kind of single excitation ultrasonic elliptical vibratory transducer | |
| CN103036472B (en) | Screw-type linear ultrasonic motor | |
| CN103208943B (en) | A kind of single stimulated rotation ultrasonic motor | |
| CN201656809U (en) | Double-rotor bending mode linear ultrasonic motor | |
| CN203221210U (en) | Single-simulation ultrasonic elliptical vibration turning device | |
| CN103762886B (en) | Sandwich type T type two-foot straight line piezoelectric ultrasonic motor oscillator | |
| CN102025286B (en) | Alternating force based linear ultrasonic motor | |
| CN203406797U (en) | Single excitation linear ultrasonic motor | |
| CN203225675U (en) | Bidirectional-driving linear ultrasonic motor | |
| CN103227584B (en) | A kind of bi-directional drive linear ultrasonic motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131030 Effective date of abandoning: 20150513 |
|
| RGAV | Abandon patent right to avoid regrant |