CN203484326U - Single-actuator ultrasonic elliptical vibration transducer - Google Patents
Single-actuator ultrasonic elliptical vibration transducer Download PDFInfo
- Publication number
- CN203484326U CN203484326U CN201320520866.6U CN201320520866U CN203484326U CN 203484326 U CN203484326 U CN 203484326U CN 201320520866 U CN201320520866 U CN 201320520866U CN 203484326 U CN203484326 U CN 203484326U
- Authority
- CN
- China
- Prior art keywords
- ultrasonic
- elliptical
- transducer
- vibration
- elliptical vibration
- 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.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The utility model discloses a single-actuator ultrasonic elliptical vibration transducer which comprises an ultrasonic vibration transducer and an elliptical vibration mode converter. The ultrasonic vibration transducer comprises a bolt, a rear cover plate, a piezoelectric ceramic piece, a electrode plate and a front cover plate, wherein the rear cover plate, the piezoelectric ceramic piece, the electrode plate and the front cover plate sleeve the bolt sequentially, and the rear cover plate, the piezoelectric ceramic piece, the electrode plate and the front cover plate are connected and pressed through bolts. The elliptical vibration mode converter is arranged at the front end of the front cover plate, is of an oblique-wedge-shaped structure and can convert longitudinal ultrasonic vibration produced by the ultrasonic vibration transducer into longitudinal-flexural composite ultrasonic elliptical vibration at the tail end of the elliptical vibration mode converter. The single-actuator ultrasonic elliptical vibration transducer is of a sandwich type structure and has the advantages of being large in power capacity, simple in structure, large in structural rigidity of elliptical vibration mode converter portion, 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 piezoelectric ceramics inverse piezoelectric effect, especially relates to a kind of single excitation ultrasonic elliptical vibratory transducer.
Background technology
Ultrasonic elliptical vibratory has application more widely in fields such as UVC, ultra-sonic welded, ultrasonic grinding, ultrasonic polishing, linear ultrasonic motor and rotary ultrasonic motors.Researcher adopts extensional vibration mostly at present, twisting vibration, two kinds of vibration modes in flexural vibrations and 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 there are two or more mode of oscillations of certain phase difference, also be necessary for every group of piezoelectric ceramic piece and be equipped with a road ultrasound-driven power supply signal, and need to control the phase difference between each road ultrasound-driven power supply signal, ultrasonic vibration system and control system complex structure, manufacture difficulty is large, control difficulty is high, production cost is high, be difficult for realizing microminiaturized, service behaviour is stable not, these problems have restricted application and the popularization of ultrasonic elliptical vibratory transducer in industrial production.
In order to overcome the deficiency in above-mentioned ultrasonic elliptical vibratory transducer technology, upper paper of the journal > > of < < BJ University of Aeronautics & Astronautics the 31st the 2nd phase of volume of February in 2005 " the elliptical vibration cutting transducer based on 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 has been carried out to finite element dynamic analysis and experimental study, obtained good 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 ultrasonic transformer to additional mass and from additional mass to cutter, need twice physical connection, cause the ultrasonic vibrational energy loss from PZT (piezoelectric transducer) to cutter larger, affected ultrasonic elliptical vibratory cutting effect.
Summary of the invention
The utility model provides a kind of novel single excitation ultrasonic elliptical vibratory transducer, and object is the deficiency existing in above-mentioned single excitation ultrasonic vibration transducer in order to overcome.
Single excitation ultrasonic elliptical vibratory transducer, comprise ultrasonic vibration transducer and elliptical vibration MODAL TRANSFORMATION OF A device, described ultrasonic vibration transducer outline is cylindrical, it comprises bolt and is set in successively back shroud, piezoelectric ceramic piece, electrode slice and the front shroud on bolt, back shroud and front shroud are connected back shroud, piezoelectric ceramic piece, electrode slice and front shroud to compress by bolt, formed the power conversion part of ultrasonic vibration transducer, the ultrasonic electric energy of ultrasonic-frequency power supply output has been converted to the ultrasonic vibrational energy of ultrasonic vibration transducer.
Described elliptical vibration MODAL TRANSFORMATION OF A device and front shroud are made into a whole installation at the front end of front shroud, or utilize an additional connection double-screw bolt elliptical vibration MODAL TRANSFORMATION OF A device to be connected in to the front end of front shroud.Elliptical vibration MODAL TRANSFORMATION OF A device is inclined wedge-shaped structure, the former integral body of inclined wedge-shaped structure elliptical vibration MODAL TRANSFORMATION OF A device is cuboid, after being cut a part, ultrasonic vibration transducer axis direction one side forms inclined wedge-shaped structure, form in two sides of inclined wedge-shaped, a cut parallel sided is not in ultrasonic vibration transducer axis, and the another side being cut becomes 3-30 degree angle with ultrasonic vibration transducer axis.
The object that makes elliptical vibration MODAL TRANSFORMATION OF A device form inclined wedge-shaped structure is in order to change the mode of oscillation of single excitation ultrasonic elliptical vibratory transducer, its extensional vibration model frequency and flexural vibration mode frequency to be approached or equate; Existence due to inclined wedge-shaped structure elliptical vibration MODAL TRANSFORMATION OF A device, the longitudinal ultrasonic vibration that ultrasonic vibration transducer produces is after being delivered to inclined wedge-shaped structure elliptical vibration MODAL TRANSFORMATION OF A device, end at inclined wedge-shaped structure elliptical vibration MODAL TRANSFORMATION OF A device is decomposed into a part of extensional vibration component and a part of flexural vibrations component, and two oscillating components have certain phase difference, and then be compounded to form elliptical orbit vibration at the end of inclined wedge-shaped structure elliptical vibration MODAL TRANSFORMATION OF A device.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, the advantage such as the rigidity of structure is large, easy to manufacture, cost is low, control-driven system is simple and vibration performance is stable.
Further, on the front shroud of described single excitation ultrasonic elliptical vibratory transducer, be provided with ring flange, for connecting of single excitation ultrasonic elliptical vibratory transducer and external structure.
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 Zhi Xu mono-road ultrasonic electric signal excitation.
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 vibration transducer to be converted to the vertical curved composite ultrasonic elliptical vibratory of elliptical vibration MODAL TRANSFORMATION OF A device end, simplified the overall structure of single excitation ultrasonic elliptical vibratory transducer, greatly reduce the complexity of vibrational system, manufacture, 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 a road control circuit and ultrasonic electric signal to encourage in addition, 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.
Accompanying drawing explanation
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. ring flange, 7. elliptical vibration MODAL TRANSFORMATION OF A device, 8. ultrasonic-frequency power supply
The specific embodiment
In conjunction with Fig. 1, shown in 2, single excitation ultrasonic elliptical vibratory transducer, comprise ultrasonic vibration transducer and elliptical vibration MODAL TRANSFORMATION OF A device 7, ultrasonic vibration transducer outline is cylindrical, it comprises bolt 1 and is set in successively the back shroud 2 on bolt 1, piezoelectric ceramic piece 3, electrode slice 4 and front shroud 5, on front shroud, be provided with the ring flange 6 that can connect with external structure use, back shroud 2 and front shroud 5 pass through bolt 1 by back shroud 2, piezoelectric ceramic piece 3, electrode slice 4 and front shroud 5 connect compression, formed 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 vibration 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, be of a size of:
Ф 30 * Ф 15 * 5, the sheet number of piezoelectric ceramic piece 3 is 2.
Elliptical vibration MODAL TRANSFORMATION OF A device 7 and front shroud 5 are made into the front end that an one-piece parts is arranged on front shroud 5, and elliptical vibration MODAL TRANSFORMATION OF A device 7 integral body are inclined wedge-shaped structure, and the former integral body of inclined wedge-shaped structure elliptical vibration MODAL TRANSFORMATION OF A device is cuboid, and the cross section length of side is 15
*15mm, long 40mm, after being cut a part, ultrasonic vibration transducer axis direction one side forms inclined wedge-shaped structure, form in two sides of inclined wedge-shaped, a cut parallel sided is not in ultrasonic vibration transducer axis, and the another side being cut becomes 10 degree angles with ultrasonic vibration transducer axis.
Single excitation ultrasonic elliptical vibratory transducer intrinsic frequency is 24.82KHz, impedance is 76 ohm, dynamic electric resistor is 18 ohm, ultrasonic-frequency power supply 8 output voltage ranges are 0-400V, current range is 0-4A, output frequency is 24.82 ± 0.01KHz, and ultrasonic-frequency power supply 8 has automatic frequency tracking function in designated frequency range.
During operation, after the signal of telecommunication of electrode slice 4 access ultrasonic-frequency power supply 8 outputs of single excitation ultrasonic elliptical vibratory transducer, inverse piezoelectric effect due to piezoelectric ceramic piece 3, piezoelectric ceramic piece 3 will produce longitudinal ultrasonic vibration, be that ultrasonic vibration transducer is converted to ultrasonic vibrational energy by the electric energy of ultrasonic-frequency power supply 8 outputs, and drive whole transducer system to carry out longitudinal ultrasonic vibration, when ultrasonic vibrational energy is delivered to from ultrasonic vibration transducer elliptical vibration MODAL TRANSFORMATION OF A device 7 ends, be converted to extensional vibration and the compound vertical curved composite ultrasonic elliptical vibratory of flexural vibrations with certain phase difference, be converted to the vertical curved composite ultrasonic elliptical vibratory of elliptical vibration MODAL TRANSFORMATION OF A device 7 ends.
When single excitation ultrasonic elliptical vibratory transducer on-load voltage, moving reaches after stable vibration state for 10 minutes, the output voltage of ultrasonic-frequency power supply 8 is 220V, electric current is 1.20A, the ultrasonic elliptical vibratory length semiaxis amplitude that uses laser doppler vibrometer to record elliptical vibration MODAL TRANSFORMATION OF A device 7 ends is respectively 11.2 microns and 4.2 microns, and carry out graphic operation by thering is the signal that the dual trace oscilloscope of lissajouf figure calculation function records laser doppler vibrometer, can obtain axial ratio and be 2.67 ultrasonic elliptical vibratory track.
Claims (4)
1. list encourages ultrasonic elliptical vibratory transducer: comprise ultrasonic vibration transducer and elliptical vibration MODAL TRANSFORMATION OF A device, described ultrasonic vibration transducer outline is cylindrical, it comprises bolt and is set in successively back shroud, piezoelectric ceramic piece, electrode slice and the front shroud on bolt, and back shroud and front shroud are connected back shroud, piezoelectric ceramic piece, electrode slice and front shroud to compress by bolt; It is characterized in that: described elliptical vibration MODAL TRANSFORMATION OF A device is arranged on the front end of front shroud, for inclined wedge-shaped structure, the former integral body of inclined wedge-shaped structure elliptical vibration MODAL TRANSFORMATION OF A device is cuboid, after being cut a part, ultrasonic vibration transducer axis direction one side forms inclined wedge-shaped structure, form in two sides of inclined wedge-shaped, a cut parallel sided is not in ultrasonic vibration transducer axis, and the another side being cut becomes 3-30 degree angle with ultrasonic vibration transducer axis.
2. single excitation ultrasonic elliptical vibratory transducer according to claim 1, is characterized in that: described elliptical vibration MODAL TRANSFORMATION OF A device and front shroud are made into an one-piece parts.
3. single excitation ultrasonic elliptical vibratory transducer according to claim 1, is characterized in that: also comprise that connects a double-screw bolt, for elliptical vibration MODAL TRANSFORMATION OF A device being connected in to the front end of front shroud.
4. single excitation ultrasonic elliptical vibratory transducer according to claim 1, is characterized in that: on front shroud, be provided with ring flange, for connecting of single excitation ultrasonic elliptical vibratory transducer and external structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320520866.6U CN203484326U (en) | 2013-08-26 | 2013-08-26 | Single-actuator ultrasonic elliptical vibration transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320520866.6U CN203484326U (en) | 2013-08-26 | 2013-08-26 | Single-actuator ultrasonic elliptical vibration transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203484326U true CN203484326U (en) | 2014-03-19 |
Family
ID=50255187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320520866.6U Withdrawn - After Issue CN203484326U (en) | 2013-08-26 | 2013-08-26 | Single-actuator ultrasonic elliptical vibration transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203484326U (en) |
Cited By (3)
| 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 |
| CN104438028A (en) * | 2014-12-09 | 2015-03-25 | 苏州科技学院 | Single excitation ultrasonic elliptic vibration transducer |
| CN115125602A (en) * | 2022-05-27 | 2022-09-30 | 广州大学 | Ultrasonic electroplating method and device for drill bit |
-
2013
- 2013-08-26 CN CN201320520866.6U patent/CN203484326U/en not_active Withdrawn - After Issue
Cited By (5)
| 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 |
| CN103406250B (en) * | 2013-08-26 | 2015-08-05 | 苏州科技学院 | Single excitation ultrasonic elliptical vibratory transducer |
| 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 |
| CN115125602A (en) * | 2022-05-27 | 2022-09-30 | 广州大学 | Ultrasonic electroplating method and device for drill bit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103406250B (en) | Single excitation ultrasonic elliptical vibratory transducer | |
| CN103447557B (en) | Single excitation ultrasonic elliptical vibratory truning fixture | |
| CN103191859B (en) | Single driven ultrasonic elliptical vibration transducer | |
| CN203253608U (en) | Single-actuator ultrasonic elliptical vibration transducer | |
| CN103192097A (en) | Single driven ultrasonic elliptical vibration turning device | |
| CN203401087U (en) | Single-excitation ultrasonic oval vibrating turning device | |
| CN103414370B (en) | Singly encourage linear ultrasonic motor | |
| CN103414373B (en) | Single stimulated rotation ultrasonic motor | |
| CN104607671A (en) | Single-excitation ultrasound oval vibration turning device | |
| CN203484326U (en) | Single-actuator ultrasonic elliptical vibration transducer | |
| CN104438028B (en) | A kind of single excitation ultrasonic elliptical vibratory transducer | |
| CN103401470B (en) | Bi-directional drive linear ultrasonic motor | |
| CN103199731B (en) | One singly encourages linear ultrasonic motor | |
| CN204320630U (en) | A kind of single excitation ultrasonic elliptical vibratory transducer | |
| CN103208943B (en) | A kind of single stimulated rotation ultrasonic motor | |
| CN203221210U (en) | Single-simulation ultrasonic elliptical vibration turning device | |
| CN203406797U (en) | Single excitation linear ultrasonic motor | |
| CN102025286B (en) | Alternating force based linear ultrasonic motor | |
| CN203457073U (en) | Bidirectionally driven linear ultrasonic motor | |
| CN103414372A (en) | Two-way driving rotating ultrasonic motor | |
| CN203225675U (en) | Bidirectional-driving linear ultrasonic motor | |
| CN103227584B (en) | A kind of bi-directional drive linear ultrasonic motor | |
| CN201854204U (en) | Linear ultrasonic motor based on alternating force | |
| CN203406800U (en) | Single excitation rotary ultrasonic motor | |
| CN104475320A (en) | Single-excitation ultrasonic elliptical vibration micro-machining work platform |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140319 Effective date of abandoning: 20150805 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140319 Effective date of abandoning: 20150805 |
|
| RGAV | Abandon patent right to avoid regrant |