CN105149200B - A kind of ultrasonic machining unit cooling device - Google Patents
A kind of ultrasonic machining unit cooling device Download PDFInfo
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- CN105149200B CN105149200B CN201510475357.XA CN201510475357A CN105149200B CN 105149200 B CN105149200 B CN 105149200B CN 201510475357 A CN201510475357 A CN 201510475357A CN 105149200 B CN105149200 B CN 105149200B
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- cooling chamber
- loudspeaker
- fluid cooling
- coolant jacket
- machining unit
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Abstract
The invention discloses a kind of ultrasonic machining unit cooling devices, including the coolant jacket being enclosed in outside the ultrasonic transducer, the amplitude transformer and the loudspeaker, the upper end of the coolant jacket and the piezoelectric ceramic piece back shroud of the ultrasonic transducer are sealedly and fixedly connected, and the lower end of the coolant jacket is connect with the loudspeaker flexible sealing；It is formed with fluid cooling chamber between the coolant jacket and the ultrasonic transducer, the amplitude transformer and the loudspeaker；It is equipped with fluid cooling chamber import in the lower part of the coolant jacket, the fluid cooling chamber import is connected by supply pipe with coolant liquid storage tank, it is exported equipped with fluid cooling chamber on the top of the coolant jacket, the fluid cooling chamber outlet is connected by discharge pipe with coolant liquid collecting tank, the area of passage of the fluid cooling chamber import is more than the area of passage of fluid cooling chamber outlet, and one-way pump is equipped on the discharge pipe.The present invention can be carried out at the same time heat dissipation to the energy converter of ultrasonic machining unit, amplitude transformer and loudspeaker.
Description
Technical field
The present invention relates to cooling device, especially a kind of ultrasonic machining unit cooling device.
Background technology
Ultrasonic machining technology is a kind of efficient, low cost, free of contamination special processing technology, in academia and industrial quarters
It is widely used.Common ultrasonic machining unit is by supersonic generator, energy converter, the groups such as amplitude transformer and loudspeaker
At.Operation principle is：The power frequency electric of 50Hz enters the higher-order of oscillation electric signal generated after supersonic generator and is supplied to energy converter；
High frequency electrical signal is switched to high-frequency mechanical vibration signal by energy converter, is increased or is reduced amplitude through amplitude transformer, transfer energy to
The ultrasonic wave of certain amplitude and frequency is passed to workpiece by ultrasonic horn, loudspeaker.
Ultrasonic transducer is by piezoelectric ceramic piece, the compositions such as electrode slice and front and rear cover plate.Its operation principle is using inverse
Piezoelectric effect converts electrical energy into mechanical energy.But it when energy converter works, inevitably generates heat, main there are two reasons：
(1) electric loss converts part electric energy to mechanical energy, generates heat；(2) when high-frequency mechanical vibration, the high frequency inside piezoelectric element
Mechanical friction causes transducer temperature to increase by frictional heat.Based on two above main cause, a kind of high-power, continuous work
Under the processing environment of work, energy converter will generate a large amount of heat, be protected so cooling device is arranged, prevent energy converter from overheating
Damage.
Currently, the energy converter type of cooling frequently be air cooling, water cooling and oil cooling.But when using air cooling, it is mingled in gas
Dust and vapor be transmitted in shell, the risk of the bridge joint short circuit of energy converter under high frequency electrical signal can be increased；Secondly, air heat
Hold and thermal coefficient is smaller, so not satisfactory to the cooling effect of high-power, continuous work ultrasonic machining unit.In addition,
202591095 U of Chinese patent literature CN disclose a kind of cooling ring on ultrasonic transducer, which uses water
It is cold, it is placed on the outside of piezoelectric ceramics back shroud, this method to radiate indirectly can form a temperature gradient, therefore, the device
Heat can not be shed in time.104190608 A of Chinese patent literature CN disclose a kind of oil cooling ultrasonic transducer amplitude modulation
Device integral piece, it only cools down energy converter, and injects mineral oil rear enclosed in shell and the cavity of modulator composition.
Because coolant liquid is filling in closed cavity, without mobility, cooling effect is bad；In addition under the conditions of high-frequency vibration, no pressure
The mineral oil of power, which inevitably gasifies, generates air pocket, and the job stability and processing for seriously affecting ultrasonic machining unit are imitated
Rate.
Experimental study shows high-power, continuous work ultrasonic machining unit, and not only energy converter will produce a large amount of heat,
Amplitude transformer and loudspeaker cause amplitude transformer and speaker body temperature to increase also due to high-frequency mechanical vibration generation heat.2013,
TaiWan, China university Yen-Pin Tsai et al. are the study found that amplitude transformer and loudspeaker temperature is excessively high can cause ultrasonic machining unit
The variation of resonant frequency causes to seriously affect to Ultrasonic Machining Efficiency.And the cooling device of existing ultrasonic machining unit, usually
Only energy converter is cooled down, few full cooling devices that energy converter, amplitude transformer and loudspeaker are carried out at the same time with heat dissipation.Therefore,
Especially seem increasingly important to high-power, ultrasonic machining unit under the conditions of continuous work full cooling.
Invention content
The present invention provides a kind of ultrasonic machining unit cooling device to solve technical problem present in known technology, should
Device can be carried out at the same time heat dissipation to the energy converter of ultrasonic machining unit, amplitude transformer and loudspeaker.
The present invention is adopted the technical scheme that solve technical problem present in known technology：A kind of Ultrasonic machining is set
Standby cooling device, the ultrasonic machining unit includes sequentially connected supersonic generator, ultrasonic transducer, amplitude transformer and loudspeaker
, which includes the coolant jacket being enclosed in outside the ultrasonic transducer, the amplitude transformer and the loudspeaker, described cold
But the upper end covered and the piezoelectric ceramic piece back shroud of the ultrasonic transducer are sealedly and fixedly connected, the lower end of the coolant jacket and institute
State the connection of loudspeaker flexible sealing；It is formed between the coolant jacket and the ultrasonic transducer, the amplitude transformer and the loudspeaker
There is fluid cooling chamber；It is equipped with fluid cooling chamber import in the lower part of the coolant jacket, the fluid cooling chamber import passes through supply
Pipe is connected with coolant liquid storage tank, is exported equipped with fluid cooling chamber on the top of the coolant jacket, and the fluid cooling chamber outlet is logical
It crosses discharge pipe with coolant liquid collecting tank to be connected, the area of passage of the fluid cooling chamber import is exported more than the fluid cooling chamber
Area of passage, one-way pump is installed on the discharge pipe.
Depassing unit and exclusion device are installed in the supply pipe, the exclusion device is located at the depassing unit
Upstream.
Valve is installed in the supply pipe, the valve is located at the upstream of the exclusion device.
The coolant jacket is made of the upper shell and lower housing that are connected through a screw thread, the upper shell and the ultrasound
The piezoelectric ceramic piece back shroud of energy converter is fixedly connected by bolt seal, and the lower housing passes through O-shaped sealing with the loudspeaker
Enclose flexible sealing connection.
Silica gel shock absorption layer is coated on the outer surface of the amplitude transformer and the loudspeaker.
The invention has the advantages and positive effects that：
One) coolant liquid is used to surround ultrasonic transducer, amplitude transformer and loudspeaker, this ultrasonic transducer, amplitude transformer and loudspeaker
Cooling mode can make ultrasonic machining unit cooling effect more obvious entirely；Suitable for high-power, continuous work super
Sound process equipment cools down.
Two) area of passage of fluid cooling chamber import is made to be more than the area of passage of fluid cooling chamber outlet, coolant inlet
Aperture ratio outlet aperture is big, increases pressure of the coolant liquid in cavity, can be effectively reduced the generation of cavitation；In addition,
It is coated with silica gel shock absorption layer in amplitude transformer and loudspeaker, equally also can inhibit the generation of cavitation, ultrasonic machining unit can be made to work
Reliable and stable, efficiency improves.
Three, lower housing is connected by O-ring seal with loudspeaker, using flexible connection, and the non-rigid mode being in direct contact
The additional mass that loudspeaker can be reduced, to reduce the variation of ultrasonic vibration resonant frequency.
In conclusion the present invention uses flowing pressure oil to the ultrasonic transducer of ultrasonic machining unit, amplitude transformer and loudspeaker
It is carried out at the same time heat dissipation, energy converter, amplitude transformer and loudspeaker can be taken away since high-frequency vibration or friction are produced using the flowing of coolant liquid
Raw heat not only has good cooling effect to ultrasonic machining unit, can also inhibit the generation of cavitation.It can avoid
Equipment, which works long hours, caused cause thermal damage, to improve the stability and reliability of ultrasonic machining unit, improved processing efficiency
And machining accuracy.Particularly suitable high-power, continuous work ultrasonic machining unit cooling.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
In figure：1- energy converters, 2- amplitude transformers, 3- loudspeaker, 4- coolant jackets, 41- upper shells, 42- lower housings, 5- cooling chambers into
Mouthful, 6- depassing units, 7- exclusion devices, 8- services, 9- coolant liquid storage tanks, the outlet of 10- cooling chambers, 11- discharge pipes, 12-
One-way pump, 13- coolant liquid collecting tanks, 14-O type sealing rings, 15- silica gel shock absorption layers, 16- valves.
Specific implementation mode
In order to further understand the content, features and effects of the present invention, the following examples are hereby given, and coordinate attached drawing
Detailed description are as follows：
Referring to Fig. 1, a kind of ultrasonic machining unit cooling device, the ultrasonic machining unit includes sequentially connected ultrasound
Wave producer, ultrasonic transducer 1, amplitude transformer 2 and loudspeaker 3, the cooling device are enclosed in the ultrasonic transducer 1, described
The coolant jacket 4 of 3 outside of amplitude transformer 2 and the loudspeaker, the piezoelectric ceramics of the upper end of the coolant jacket 4 and the ultrasonic transducer 1
Piece back shroud is sealedly and fixedly connected, and the lower end of the coolant jacket 4 is connect with 3 flexible sealing of the loudspeaker；The coolant jacket 4 with
It is formed with fluid cooling chamber between the ultrasonic transducer 1, the amplitude transformer 2 and the loudspeaker 3；Under the coolant jacket 4
Portion is equipped with fluid cooling chamber import 5, and the fluid cooling chamber import 5 is connected by supply pipe 8 with coolant liquid storage tank 9, described
The top of coolant jacket 4 is equipped with fluid cooling chamber and exports 10, and the fluid cooling chamber outlet 10 is received by discharge pipe 11 and coolant liquid
Collecting slot 13 to be connected, the area of passage of the fluid cooling chamber import 5 is more than the area of passage of fluid cooling chamber outlet 10,
One-way pump 12 is installed on the discharge pipe 11.
In the present embodiment, depassing unit 6 and exclusion device 7, the exclusion device 7 are installed in the supply pipe 8
Positioned at the upstream of the depassing unit 6.Valve 16 is also equipped in the supply pipe 8, the valve 16 is located at the removal of impurities
The upstream of device 7.In the present embodiment, the coolant jacket 4 is made of the upper shell 41 and lower housing 42 being connected through a screw thread
, the upper shell 41 is fixedly connected with the piezoelectric ceramic piece back shroud of the ultrasonic transducer 1 by bolt seal, under described
Shell 42 is connect with the loudspeaker 3 by 14 flexible sealing of O-ring seal.Lower housing can be avoided to be in direct contact with loudspeaker to be led
The increase loudspeaker additional mass problem of cause.It is coated with 0.5mm~2mm on the outer surface of the amplitude transformer 2 and the loudspeaker 3
Thick silica gel shock absorption layer 15 prevents coolant liquid from generating air pocket due to high-frequency vibration.
The operation principle of the present invention：
The present invention needs the oil using the difficult gasification of insulation as coolant liquid.After device starts, coolant liquid is provided in one-way pump
Exogenetic process under, from coolant liquid storage tank followed by valve, exclusion device, depassing unit and fluid cooling chamber import, into
Enter fluid cooling chamber, ultrasonic machining unit is carried out cooling heat；Then outflow fluid cooling chamber is exported from fluid cooling chamber, into
Enter coolant liquid collecting tank, completes cooling overall process.
The assembling and starting step of the present invention is as follows：
1) the connected installation of piezoelectric ceramic piece back shroud for completing upper shell and energy converter, is then screwed in upper shell by lower housing
Screw thread on, and be previously implanted the sealing performance of cooling fluid inspection fluid cooling chamber；
2) coolant jacket is connected to coolant liquid collecting tank using discharge pipe, using supply pipe by coolant jacket and coolant liquid storage tank
Connection；
3) Open valve and one-way pump successively make to be full of coolant liquid in fluid cooling chamber.
4) it is then turned on ultrasonic machining unit and carries out work pieces process.
The present invention is correspondingly improved compared with existing ultrasonic transducer cooling device in the following aspects：
1) present invention can not only cool down ultrasonic transducer, additionally it is possible to amplitude transformer and loudspeaker are cooled down, and
And heat can be made to shed in time by the coolant liquid of flowing, cooling effect is very good；Suitable for high-power, continuous work super
Sound process equipment cools down.
2) area of passage of fluid cooling chamber import is made to be more than the area of passage of fluid cooling chamber outlet, coolant liquid entrance
Aperture is different, and entrance hole diameter is more than outlet aperture, improves the pressure that fluid cools down indoor moveable coolant liquid with this, prevents from cooling down
Liquid generates air pocket under high-frequency vibration, reduces the risk that coolant liquid generates air pocket.
3) silica gel shock absorption layer is coated in amplitude transformer and loudspeaker to play under the conditions of high-frequency mechanical vibration and effectively inhibit cold
But liquid generates the effect of air pocket.
4) coolant jacket is connect with loudspeaker using flexible sealing, reduces the additional mass of loudspeaker, to reduce ultrasonic vibration
The variation of resonant frequency, improves Ultrasonic Machining Efficiency.
5) setting removal of impurities, depassing unit in supply pipe, make coolant liquid before entering fluid cooling chamber by cleaning and removing
Gas disposal ensures the safety and reliability of cooling device.
Although the preferred embodiment of the present invention is described above in conjunction with attached drawing, the invention is not limited in upper
The specific implementation mode stated, the above mentioned embodiment is only schematical, be not it is restrictive, this field it is common
Technical staff under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, may be used also
By make it is many in the form of, within these are all belonged to the scope of protection of the present invention.
Claims (5)
1. a kind of ultrasonic machining unit cooling device, the ultrasonic machining unit includes sequentially connected supersonic generator, surpasses
Sonic transducer, amplitude transformer and loudspeaker, which is characterized in that the cooling device is enclosed in the ultrasonic transducer, the luffing
Coolant jacket outside bar and the loudspeaker, the upper end of the coolant jacket and the piezoelectric ceramic piece back shroud of the ultrasonic transducer are close
Envelope is fixedly connected, and the lower end of the coolant jacket is connect with the loudspeaker flexible sealing；In the coolant jacket and the ultrasonic transduction
It is formed with fluid cooling chamber between device, the amplitude transformer and the loudspeaker；
It is equipped with fluid cooling chamber import in the lower part of the coolant jacket, the fluid cooling chamber import passes through supply pipe and coolant liquid
Storage tank is connected, and being equipped with fluid cooling chamber on the top of the coolant jacket exports, fluid cooling chamber outlet by discharge pipe and
Coolant liquid collecting tank is connected, and the area of passage of the fluid cooling chamber import is more than the flow-passing surface of fluid cooling chamber outlet
Product, one-way pump is equipped on the discharge pipe.
2. ultrasonic machining unit cooling device according to claim 1, which is characterized in that be equipped in the supply pipe
Depassing unit and exclusion device, the exclusion device are located at the upstream of the depassing unit.
3. ultrasonic machining unit cooling device according to claim 2, which is characterized in that be equipped in the supply pipe
Valve, the valve are located at the upstream of the exclusion device.
4. ultrasonic machining unit cooling device according to claim 1, which is characterized in that the coolant jacket is by passing through spiral shell
What the upper shell and lower housing of line connection formed, the piezoelectric ceramic piece back shroud of the upper shell and the ultrasonic transducer passes through
Bolt seal is fixedly connected, and the lower housing is connect with the loudspeaker by O-ring seal flexible sealing.
5. ultrasonic machining unit cooling device according to claim 1, which is characterized in that in the amplitude transformer and the loudspeaker
Silica gel shock absorption layer is coated on outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510475357.XA CN105149200B (en) | 2015-08-05 | 2015-08-05 | A kind of ultrasonic machining unit cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510475357.XA CN105149200B (en) | 2015-08-05 | 2015-08-05 | A kind of ultrasonic machining unit cooling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105149200A CN105149200A (en) | 2015-12-16 |
| CN105149200B true CN105149200B (en) | 2018-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510475357.XA Expired - Fee Related CN105149200B (en) | 2015-08-05 | 2015-08-05 | A kind of ultrasonic machining unit cooling device |
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| CN (1) | CN105149200B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2568273B (en) * | 2017-11-10 | 2020-04-01 | Guided Ultrasonics Ltd | Ultrasonic transducer |
| CN108827761A (en) * | 2018-08-28 | 2018-11-16 | 丹阳丹金航空材料科技有限公司 | A kind of cooling cushion block structure for high-module high-strength composite material high temperature tension test |
| CN109513908B (en) * | 2018-12-29 | 2020-11-06 | 有研工程技术研究院有限公司 | Ultrasonic device suitable for long-time treatment of magnesium alloy melt |
| CN110076073A (en) * | 2019-05-31 | 2019-08-02 | 青岛贝索科技有限公司 | Industrial magnetostriction type ultrasonic transducer cooling device and method |
| CN110355084B (en) * | 2019-07-17 | 2021-02-05 | 中北大学 | Axial ultrasonic transducer |
| CN110977216B (en) * | 2019-12-20 | 2022-04-05 | 哈尔滨工业大学 | Novel pulse ultrasonic electric arc composite welding device and welding method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003266378A (en) * | 2002-03-12 | 2003-09-24 | Hirano Tecseed Co Ltd | Ultrasonic cutter device |
| CN202193803U (en) * | 2011-08-25 | 2012-04-18 | 韩连江 | Metal surface nano-machining device |
| CN203108765U (en) * | 2013-02-21 | 2013-08-07 | 湖北瑜晖电子科技有限公司 | Water-cooling-type large-power ultrasonic transducer |
| CN104801845A (en) * | 2015-04-16 | 2015-07-29 | 天津大学 | Ultrasonic peening gun suitable for high-temperature or vacuum environment and using method of ultrasonic peening gun |
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2015
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| CN105149200A (en) | 2015-12-16 |
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Address after: 300350 Haijing garden, Haihe Education Park, Jinnan, Tianjin, 135, Tianjin University. Patentee after: Tianjin University Address before: 300072 Tianjin City, Nankai District Wei Jin Road No. 92, Tianjin University Patentee before: Tianjin University |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180717 Termination date: 20200805 |