CN104550875A - Ultrasonic auxiliary upper mold structure with cooling device - Google Patents
Ultrasonic auxiliary upper mold structure with cooling device Download PDFInfo
- Publication number
- CN104550875A CN104550875A CN201410790803.1A CN201410790803A CN104550875A CN 104550875 A CN104550875 A CN 104550875A CN 201410790803 A CN201410790803 A CN 201410790803A CN 104550875 A CN104550875 A CN 104550875A
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- China
- Prior art keywords
- ultrasonic
- mold
- ultrasonic transformer
- transformer
- upper mold
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/08—Shaking, vibrating, or turning of moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
Abstract
The invention discloses an ultrasonic auxiliary upper mold structure with a cooling device. The ultrasonic auxiliary upper mold structure comprises an ultrasonic transducer, an amplitude change rod and an upper mold, wherein screw pairs are respectively used for integral connection between the lower end of the ultrasonic transducer and the upper end of the amplitude change rod, between the lower end of the amplitude change rod and the upper end of the upper mold as well as between the lower end of the upper mold and a demolding mechanism. The ultrasonic auxiliary upper mold structure solves the problem that an ultrasonic vibration device cannot be used for high-temperature operation. The threaded connection is realized on the amplitude change rod and the upper mold at the node position of the amplitude change rod, the screw thread looseness between the upper mold and the amplitude change rod can be prevented, the ultrasonic energy can be effectively transmitted, the upper mold can be conveniently replaced, and the ultrasonic vibration application range can be enlarged to the semi-solid forming field through the addition of a cooling device.
Description
Technical field
The present invention relates to ultrasonic vibration assistant metal to be shaped, especially relate to a kind of ultrasonic wave added upper die structure with cooling device.
Background technology
A kind of processing method progressively grown up since Ultrasonic machining technology is the 1950's.Ultrasonic machining system is made up of supersonic generator, transducer, ultrasonic transformer and mold etc.Wherein, ultrasonic transducer and ultrasonic transformer are the important component parts of ultrasonic vibration system.The Main Function of ultrasonic transducer in vibrational system is that the high frequency electrical signal that supersonic generator transmits is converted into high frequency mechanical signal, is generally divided into magnetostriction type and piezoelectric ceramic type.The Main Function of ultrasonic transformer in vibrational system is displacement enlargement amplitude, or concentration of energy i.e. cumulative action on less area.When operating frequency only has several micron at the amplitude of 20KHz wide-ultra sonic transducer radiating surface, and amplitude required in Ultrasonic machining is tens even hundreds of microns, so must will the displacement equations of vibration particle by the cumulative action of ultrasonic transformer.In the application of power ultrasonic, ultrasonic transformer can be divided into the forms such as extensional vibration, flexural vibrations, twisting vibration.Index shape, stairstepping and conical horn are the single ultrasonic transformers of the simplest longitudinal vibration, combine multi-form single ultrasonic transformer into complex horn as required.
Transducer, ultrasonic transformer and mold are the cores of ultrasonic wave system of processing.In Novel ultrasonic processed and applied, need to be connected on ultrasonic transformer with the instrument of different size to realize Ultrasonic machining.Effective connection of mold and ultrasonic transformer makes vibrational energy carry out the key transmitted to greatest extent, and connected mode common is at present threaded, centrum is press-fitted connection and brazing.Wherein be threaded and can replace with mould eaily, but shortcoming easily occurs loosening, and causes the loss that ultrasonic energy transmits.Chinese invention patent (application number 201310698287.5) discloses a kind of ultrasonic amplitude transformer of fast changeable cutter, be connected with the tool adapter of ad hoc structure by the output of the compound ultrasonic transformer of circular cone-cylinder, tool adapter designs according to the physical dimension size of instrument, can ensure after replacing that whole ultrasonic vibration system is still in resonant condition, the time of impedance matching is re-started after can greatly saving replacing instrument, improve working (machining) efficiency, but the shortcoming of this device is the reliability that can not ensure that ultrasonic transformer is connected with mold with tool adapter and tool adapter.
Current ultrasonic vibration assists normal temperature forming technique very ripe, and Application comparison is extensive.But ultrasonic vibration assisted with high-temperature is shaped and semi-solid state assistant metal-forming techniques also rarely has report, reason is that common piezoelectric ceramic type transducer can not at high temperature operation, which greatly limits the range of application of ultrasonic vibration technology.Chinese utility model patent (application number 201320309688.2) discloses a kind of high efficiency, high temperature, high pressure ultrasonic transducer, adopt unique coolant jacket, by additional cooling liquid, piezoceramics crystal is cooled, piezoceramics crystal is made to remain in fixing temperature, substantially increase the stability of piezoceramics crystal, but this apparatus structure more complicated, specific implementation acquires a certain degree of difficulty.
Based on above problem, propose a kind of with cooling device that is simple, that be easy to realize and mold can be convenient for changing can ensure that the ultrasound structure of mold and ultrasonic transformer connection reliability is very necessary simultaneously.
Summary of the invention
The object of the present invention is to provide a kind of ultrasonic wave added upper die structure with cooling device.Cooling device structure is simple, is easy to realize, and solves the problem that ultrasonic vibration installation can not be used for high-temperature operation, expands the range of application of ultrasonic wave added processing.
The technical solution adopted for the present invention to solve the technical problems is:
The present invention includes ultrasonic transducer, ultrasonic transformer and mold; All linked into an integrated entity by screw pair between ultrasonic transducer lower end and ultrasonic transformer upper end, between ultrasonic transformer lower end and mold upper end and between mold lower end and mould emptier.
Described ultrasonic transducer, comprises pretension bar, upper cover plate, two panels electrode slice and two panels piezoelectric ceramic piece; Upper cover plate, the first electrode slice, the first piezoelectric ceramic piece, the second electrode slice are connected with ultrasonic transformer threaded upper ends by coaxial pretension bar with the second piezoelectric ceramic piece, and be connected with supersonic generator by the connection wire of two panels electrode slice, pretension bar axially has cooling duct.
The ring flange center of described ultrasonic transformer upper end has the thread groove be connected with the pretension bar lower end of ultrasonic transducer, thread-groove bottom has cooling duct, right angle, cooling duct, right angle is connected with water pipe by axially having band through hole screw rod, in order to ensure the impulse stroke of ultrasonic transformer and avoid the dynamic performance of the long change ultrasonic transformer of passage, right angle cooling pipe opens the conical area at ultrasonic transformer, and the lower center of ultrasonic transformer has the screwed hole be connected with mold upper end.
The stud of the upper end center of described mold is connected at the node location of ultrasonic transformer with the screwed hole of ultrasonic transformer lower center, mold lower surface is with fine structure, fine structure is determined according to the shape of processing work, the micro-thixotropic forming of semi-solid-state metal for completing different structure workpiece, mold is connected with mould emptier by the lower end stud of lower center, mold is both as the mold with minutiae, the part extended as ultrasonic transformer again plays cumulative and amplifies the effect of amplitude, ultrasonic transformer and mold form the ultrasonic transformer of 3/4 wavelength jointly, peak swing is exported in the lower surface of mold, mold is identical with the material of ultrasonic transformer.
The beneficial effect that the present invention has is:
The invention solves the problem that ultrasonic vibration installation can not be used for high-temperature operation; By being threaded to ultrasonic transformer and mold at ultrasonic transformer node location, the thread looseness between mold and ultrasonic transformer can being prevented, effectively transmit ultrasonic energy; Can mold being convenient for changing, can ultrasonic vibration range of application being expanded to semi-solid-state shaping field by adding cooling device.
Accompanying drawing explanation
Fig. 1 is assembly structure figure of the present invention.
Fig. 2 is ultrasonic transducer structure figure of the present invention.
Fig. 3 is ultrasonic transformer structure chart of the present invention.
Fig. 4 is upper die structure front view of the present invention.
Fig. 5 is upper die structure upward view of the present invention.
Fig. 6 is upper die structure left view of the present invention.
Fig. 7 is the front view of mould emptier of the present invention.
Fig. 8 is the top view of mould emptier of the present invention.
In figure: 1. ultrasonic transducer, 11. cooling ducts, 12. pretension bars, 13. upper cover plates, 14. electrode slices, 15. piezoelectric ceramic pieces, 16. connect wire, 17. flat grooves, 18. outer tooth pagoda structures; 2. ultrasonic transformer, 21. ring flanges, 22. through holes, 23. thread grooves, 24. band through hole screw rods, 25. cooling ducts, right angle, 26. screwed holes; 3. mold, 31. upper end studs, 32. flat grooves, 33. lower end studs, 34. fine structures; 4. mould emptier.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Fig. 1, Fig. 7, Fig. 8, this structure ultrasonic transducer 1 of the present invention, ultrasonic transformer 2 and mold 3; All linked into an integrated entity by screw pair between ultrasonic transducer 1 lower end and ultrasonic transformer 2 upper end, between ultrasonic transformer 2 lower end and mold 3 upper end and between mold 3 lower end and mould emptier 4.
As shown in Figure 2, described ultrasonic transducer 1, comprises pretension bar 12, upper cover plate 13, two panels electrode slice 14 and two panels piezoelectric ceramic piece 15; Upper cover plate 13, first electrode slice 14, first piezoelectric ceramic piece 15, second electrode slice 14 and the second piezoelectric ceramic piece 15 to be connected with ultrasonic transformer 2 threaded upper ends by coaxial pretension bar 12 and to realize pretension, and be connected with supersonic generator by the connection wire 16 of two panels electrode slice, pretension bar 12 axially has cooling duct 11.Pretension bar 12 has flat groove 17, for clamping when tightening.The cylindrical of cooling duct 11 makes outer tooth pagoda structure 18, ensures the compactness be connected with water pipe.
As shown in Figure 3, ring flange 21 center of described ultrasonic transformer 2 upper end has the thread groove 23 be connected with pretension bar 12 lower end of ultrasonic transducer 1, ring flange 21 surrounding has the through hole 22 connected, cooling duct, right angle 25 is had bottom thread groove 23, cooling duct, right angle 25 is connected with water pipe by axially having band through hole screw rod 24, in order to ensure the impulse stroke of ultrasonic transformer and avoid the dynamic performance of the long change ultrasonic transformer of passage, right angle cooling pipe 25 opens the conical area at ultrasonic transformer 2, the lower center of ultrasonic transformer 2 has the screwed hole 26 be connected with mold 3 upper end.Right angle cooling pipe 25 opens conical area at ultrasonic transformer 2 on the one hand in order to ensure the impulse stroke of ultrasonic transformer, avoids the dynamic performance of the long change ultrasonic transformer of passage on the other hand.
As Fig. 4, Fig. 5, Fig. 6, Fig. 7, shown in Fig. 8, the stud 31 of the upper end center of described mold 3 is connected at the node location of ultrasonic transformer with the screwed hole 26 of ultrasonic transformer 2 lower center, mold 3 lower surface is with fine structure 34, fine structure 34 is determined according to the shape of processing work, the micro-thixotropic forming of semi-solid-state metal for completing different structure workpiece, mold 3 is connected with mould emptier 4 by the lower end stud 33 of lower center, mold 3 is both as the mold with minutiae 34, the part extended as ultrasonic transformer 2 again plays cumulative and amplifies the effect of amplitude, ultrasonic transformer 2 and mold 3 form the ultrasonic transformer of 3/4 wavelength jointly, peak swing is exported in the lower surface of mold 3, mold 3 is identical with the material of ultrasonic transformer 2 or close, in the present invention, the two material is 45 steel.With the face of cylinder broad in the middle of pipe vice clamping ultrasonic transformer 2 when assembling or dismounting, the flat groove 32 being stuck in mold 3 with spanner carries out tightening or unscrewing.
Ultrasonic transformer 2 is the compound ultrasonic transformer of half-wavelength circular cone-cylinder, the both ends of the surface amplitude of ultrasonic transformer 2 is all zero, the object one of such design ultrasonic transformer is to be connected with ultrasonic transducer 1 at upper flanges Pan21Chu, two is to be connected with mold 3 at ultrasonic transformer 2 small end face, namely flange face and ultrasonic transformer small end face are ultrasonic transformer node location place, carry out dynamic analysis can determine that both ends of the surface amplitude is all structure and the size of the ultrasonic transformer 2 of zero by software to ultrasonic transformer.
As shown in Fig. 2 ~ Fig. 8, the pretension bar 12 of ultrasonic transducer 1 axially has cooling duct 11, ultrasonic transformer 2 has square cooling duct 25 in the one end with ring flange 21, cooling duct 11 and cooling duct, right angle 25 realize UNICOM by the compact siro spinning technology of ultrasonic transducer 1 and ultrasonic transformer 2, and form closed cooling circuit by water pipe and water pump, cooling water.Cooling duct, right angle 25 is water inlet, and cooling duct 11 is delivery port, because cooling duct, right angle 25 is closer to high temperature section, arranges like this to make cooling effect better.Ultrasonic transformer 2 other end has screwed hole 26, is threaded connection with the upper end stud 31 of mold 3.With fine structure 34 on mold 3, shape processing as required and replacing, can be used for the micro-thixotropic forming of semi-solid-state metal.Mold mills out the flat groove 32 of degree of depth 2mm, the convenient clamping when assembling and dismantle mold.Mold 3 is connected with mould emptier 4 by lower end screw thread 33.Mould emptier mills out equally the flat groove of degree of depth 2mm, convenient clamping.Drive workpiece to come off to realize the demoulding by backing out mould emptier 4 after completion of processing.
Claims (4)
1. the ultrasonic wave added upper die structure with cooling device, is characterized in that: this structure comprises ultrasonic transducer (1), ultrasonic transformer (2) and mold (3); All linked into an integrated entity by screw pair between ultrasonic transducer (1) lower end and ultrasonic transformer (2) upper end, between ultrasonic transformer (2) lower end and mold (3) upper end and between mold (3) lower end and mould emptier (4).
2. a kind of ultrasonic wave added upper die structure with cooling device according to claim 1, is characterized in that: described ultrasonic transducer (1) comprises pretension bar (12), upper cover plate (13), two panels electrode slice and two panels piezoelectric ceramic piece; Upper cover plate (13), the first electrode slice, the first piezoelectric ceramic piece, the second electrode slice are connected with ultrasonic transformer (2) threaded upper ends by coaxial pretension bar (12) with the second piezoelectric ceramic piece, and be connected with supersonic generator by the connection wire of two panels electrode slice, pretension bar (12) axially has cooling duct (11).
3. a kind of ultrasonic wave added upper die structure with cooling device according to claim 1, it is characterized in that: ring flange (21) center of described ultrasonic transformer (2) upper end has the thread groove (23) be connected with pretension bar (12) lower end of ultrasonic transducer (1), thread groove (23) bottom has cooling duct, right angle (25), cooling duct, right angle (25) is connected with water pipe by axially having band through hole screw rod (24), in order to ensure the impulse stroke of ultrasonic transformer and avoid the dynamic performance of the long change ultrasonic transformer of passage, right angle cooling pipe (25) opens the conical area in ultrasonic transformer (2), the lower center of ultrasonic transformer (2) has the screwed hole (26) be connected with mold (3) upper end.
4. a kind of ultrasonic wave added upper die structure with cooling device according to claim 1, it is characterized in that: the stud (31) of the upper end center of described mold (3) is connected at the node location of ultrasonic transformer with the screwed hole (26) of ultrasonic transformer (2) lower center, mold (3) lower surface is with fine structure (34), fine structure (34) is determined according to the shape of processing work, the micro-thixotropic forming of semi-solid-state metal for completing different structure workpiece, mold (3) is connected with mould emptier (4) by the lower end stud (33) of lower center, mold (3) is both as the mold with minutiae (34), the part extended as ultrasonic transformer (2) again plays cumulative and amplifies the effect of amplitude, ultrasonic transformer (2) and mold (3) form the ultrasonic transformer of 3/4 wavelength jointly, peak swing is exported in the lower surface of mold (3), mold (3) is identical with the material of ultrasonic transformer (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410790803.1A CN104550875B (en) | 2014-12-17 | 2014-12-17 | Ultrasonic wave added upper die structure with chiller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410790803.1A CN104550875B (en) | 2014-12-17 | 2014-12-17 | Ultrasonic wave added upper die structure with chiller |
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| Publication Number | Publication Date |
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| CN104550875A true CN104550875A (en) | 2015-04-29 |
| CN104550875B CN104550875B (en) | 2016-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410790803.1A Expired - Fee Related CN104550875B (en) | 2014-12-17 | 2014-12-17 | Ultrasonic wave added upper die structure with chiller |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106424630A (en) * | 2016-08-19 | 2017-02-22 | 浙江大学 | Ultrasound-assisted semisolid die-casting molding device and method for complex thin-wall aluminum alloy pieces |
| CN109513908A (en) * | 2018-12-29 | 2019-03-26 | 有研工程技术研究院有限公司 | A kind of Vltrasonic device suitable for long time treatment magnesium alloy fused mass |
| CN112276034A (en) * | 2020-09-11 | 2021-01-29 | 周芮冬 | Secondary pressurization adjustable device of die casting machine |
| CN113102735A (en) * | 2021-03-30 | 2021-07-13 | 西北工业大学 | Immersion type three-dimensional ultrasonic metal solidification device and method with controllable sound field |
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| US4307128A (en) * | 1976-07-30 | 1981-12-22 | Asahi Glass Company, Ltd. | Metallic coating method using ultrasonic vibration |
| KR20070056255A (en) * | 2005-11-29 | 2007-06-04 | 한 중 이 | Manufacturing apparatus for forming material with spherical structure inside of metallic mold at casting |
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| CN102500502A (en) * | 2011-10-10 | 2012-06-20 | 苏州科技学院 | Two-stage ultrasonic vibration atomizer |
| CN104174677A (en) * | 2014-07-16 | 2014-12-03 | 深圳大学 | Magnesium alloy ultrasonic wave micro extrusion formed refined grain technology at normal temperature |
| CN204449268U (en) * | 2014-12-17 | 2015-07-08 | 浙江大学 | A kind of ultrasonic wave added upper die structure with cooling device |
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4307128A (en) * | 1976-07-30 | 1981-12-22 | Asahi Glass Company, Ltd. | Metallic coating method using ultrasonic vibration |
| KR20070056255A (en) * | 2005-11-29 | 2007-06-04 | 한 중 이 | Manufacturing apparatus for forming material with spherical structure inside of metallic mold at casting |
| CN101406925A (en) * | 2008-11-18 | 2009-04-15 | 浙江大学 | Method for device for forming metal micro-thixotropy in semi-solid state assistant by supersonic vibration |
| CN101733492A (en) * | 2009-12-17 | 2010-06-16 | 山东大学 | Combined machining spindle unit of supersonic vibration assistant grinding-impulse discharge |
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| CN102500502A (en) * | 2011-10-10 | 2012-06-20 | 苏州科技学院 | Two-stage ultrasonic vibration atomizer |
| CN104174677A (en) * | 2014-07-16 | 2014-12-03 | 深圳大学 | Magnesium alloy ultrasonic wave micro extrusion formed refined grain technology at normal temperature |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106424630A (en) * | 2016-08-19 | 2017-02-22 | 浙江大学 | Ultrasound-assisted semisolid die-casting molding device and method for complex thin-wall aluminum alloy pieces |
| CN106424630B (en) * | 2016-08-19 | 2019-01-18 | 浙江大学 | Complex thin-wall class Al-alloy parts ultrasonic wave added semisolid pressure casting molding machine and method |
| CN109513908A (en) * | 2018-12-29 | 2019-03-26 | 有研工程技术研究院有限公司 | A kind of Vltrasonic device suitable for long time treatment magnesium alloy fused mass |
| 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 |
| CN112276034A (en) * | 2020-09-11 | 2021-01-29 | 周芮冬 | Secondary pressurization adjustable device of die casting machine |
| CN113102735A (en) * | 2021-03-30 | 2021-07-13 | 西北工业大学 | Immersion type three-dimensional ultrasonic metal solidification device and method with controllable sound field |
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| CN104550875B (en) | 2016-09-28 |
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Granted publication date: 20160928 Termination date: 20181217 |