CN203144513U - Ultrasonic vibration coupling device for laser repairing - Google Patents
Ultrasonic vibration coupling device for laser repairing Download PDFInfo
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- CN203144513U CN203144513U CN2013200911208U CN201320091120U CN203144513U CN 203144513 U CN203144513 U CN 203144513U CN 2013200911208 U CN2013200911208 U CN 2013200911208U CN 201320091120 U CN201320091120 U CN 201320091120U CN 203144513 U CN203144513 U CN 203144513U
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- amplitude
- coupling device
- auxiliary support
- ultrasonic vibration
- vibration coupling
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Abstract
The utility model relates to an ultrasonic vibration coupling device for laser repairing. The ultrasonic vibration coupling device comprises rubber, a ring-shaped auxiliary support seat, an amplitude-change pole, a working table, a cooling device and an ultrasonic transducer, wherein the ultrasonic transducer is fixed at the lower end of the amplitude-change pole; the upper end of the ultrasonic transducer is provided with the cooling device; the amplitude-change pole passes through the working table and is fixed on the working table together with the ring-shaped auxiliary support seat; the amplitude-change pole is arranged in the center of the ring-shaped auxiliary support seat; the upper end of the ring-shaped auxiliary support seat is provided with the rubber; and a vacuum hole is formed at one side of the ring-shaped auxiliary support seat. The ultrasonic vibration coupling device for laser repairing realizes rapid coupling between the amplitude-change pole and a workpiece by adopting a vacuum negative pressure structure, namely, a vacuum suction cup structure is adopted at the upper part of the amplitude-change pole, so that the upper part of the amplitude-change pole coated with a coupling agent can be closely combined with the workpiece. The joint force can be accurately controlled by calculating the size of the suction cup structure and the air suction pressure P. The ultrasonic wave amplitude of the ultrasonic vibration coupling device can be adjusted within a certain range, the ultrasonic vibration coupling device can generate ultrasonic wave which is approximately even at the central area, and the ultrasonic wave is introduced into a melting pool; and furthermore, different laser repairing effects can be further obtained by changing the amplitude (power) of the liquid metal acting in the melting pool.
Description
Technical field: the utility model relates to a kind of coupling device, and particularly a kind of coupling device belongs to the material forming field.
Background technology: be born seventies core technology---the laser repairing technology of laser repairing process of twentieth century has obtained fast development the eighties.Because this technology has easy and simple to handle, pollution-free and can shorten the production cycle, therefore the material use efficiency height, the advantages such as difficult-to-machine metal part that are particularly suitable for repairing complex construction are widely used in fields such as Aeronautics and Astronautics based on difficult-to-machine materials such as titanium alloys, boats and ships.In titanium alloy laser deposition repair process, pore, crackle, the microstructure skewness, crystallization is not obvious, and grain-size is thick to be the major reason that influences repairing quality, in order to improve repairing effect, improve repairing quality, usually by adding some specific alloy element or oxide compound, or suppress or improve above defective by optimizing measures such as titanium alloy laser deposition renovation technique, but above measure is to improving achieving no breakthrough property of repair layer quality progress.In order to improve laser repairing layer internal soundness, an important thinking is that hard evenly distributes mutually in managing to make repair layer, adopts the ultrasonic vibration coupling device can well realize this thinking in laser repairing.The ultrasonic wave that ultrasonic transducer produces acts on melt metal solution, promotes the metallic solution motion, can impel separating out of foreign gas in the metallic solution, reduces the thermograde of metallic solution, and the molten bath is more evenly distributed.Traditional ultrasonic vibration coupling device adopts mostly to be threaded and carries out workpiece and horn coupling, and workpiece needs machining processes before repairing, and has reduced laser repairing efficient.
The utility model content: at above-mentioned the deficiencies in the prior art, the utility model provides a kind of compact construction, and is with low cost, stable performance, easy to operate ultrasonic vibration coupling device.
For achieving the above object, the technical solution adopted in the utility model is: a kind of laser repairing ultrasonic vibration coupling device comprises rubber, annular auxiliary support, horn, worktable, refrigerating unit and ultrasonic transducer.Ultrasonic transducer is fixed on the lower end of horn.The upper end of ultrasonic transducer is provided with refrigerating unit.Horn is passed worktable and is fixed on the worktable with annular auxiliary support.Horn is in the central authorities of annular auxiliary support.The upper end of annular auxiliary support is provided with rubber.One side of annular auxiliary support is provided with and vacuumizes the hole.
Preferably, described horn adopts the compound luffing bar of circular cone-cylinder.
Preferably, described refrigerating unit is water-cooling pattern.
Preferably, described supersonic transducer frequency is 17 kilo hertzs-23 kilo hertzs.
The negative pressure of vacuum structure that adopts the utility model realizes the quick coupling of horn and workpiece, namely adopts the vacuum pad structure on horn top, and the horn top and the workpiece that are coated with couplant are combined closely.Accurately control engaging force by the big I of calculating sucker structure size and suction pressure P.The ultrasonic amplitude of ultrasonic vibration coupling device is adjustable in certain limit, and can produce approximate uniform ultrasonic wave in the central zone, ultrasonic wave is incorporated in the molten bath, acts on the amplitude (power) of liquid metal in the molten bath simultaneously by change, and then obtain different laser repairing effects.
The beneficial effects of the utility model:
The one, can finely improve the effect of laser repairing, improve repairing quality, concrete manifestation is as follows:
(1) this ultrasonic vibration coupling device can make the heat-affected zone more even, increases its sphere of action and the infiltration on every side to the molten bath.
(2) this ultrasonic vibration coupling device can significantly improve the repair layer microstructure, it is more evenly distributed, crystal grain thinning.
(3) pore that this ultrasonic vibration coupling device can good restraining titanium alloy powder laser repairing layer and make its granular.
(4) this ultrasonic vibration coupling device can improve the microhardness of repair layer to a certain extent.
The 2nd, the utility model compact construction, stable performance is satisfied the space requirement that test is installed, and can be produced the adjustable ultrasonic wave of amplitude (power) in the work area, can well bring into play vibrating effect, improves problem and the defective mentioned in the technical background.
Description of drawings:
Fig. 1 is the utility model structural representation.
Fig. 2 is used for the horn structural representation of flat-type workpiece.
Fig. 3 is used for the horn structural representation of column workpiece.
Fig. 4 is used for the horn structural representation of curved surface class workpiece.
Embodiment:
As shown in Figure 1: a kind of laser repairing ultrasonic vibration coupling device comprises rubber 3, annular auxiliary support 4, horn 7, worktable 8, refrigerating unit 9 and ultrasonic transducer 10.Ultrasonic transducer 10 is fixed on the lower end of horn 7.The upper end of ultrasonic transducer 10 is provided with refrigerating unit 9.Horn 7 is passed worktable 8 and is fixed on the worktable 8 with annular auxiliary support 4.Horn 7 is in the central authorities of annular auxiliary support 4.The upper end of annular auxiliary support 4 is provided with rubber 3.One side of annular auxiliary support 4 is provided with and vacuumizes hole 11.
Principle of work:
The vibronic coupling device is arranged on the lower end of laser cladding device, and described laser cladding device comprises laser apparatus 12, condensing lens 1, powder feeder 13, coaxial powder-feeding nozzle 2 and protection device of air 14.Laser apparatus and condensing lens be arranged in parallel, and coaxial powder-feeding nozzle 2 is located at the lower end of condensing lens.Powder feeder 13 is connected with coaxial powder-feeding nozzle 2.The protection device of air is arranged on the lower end of coaxial powder-feeding nozzle.Workpiece 5 is placed on the rubber 3, by vacuumizing hole 11 cavity that annular auxiliary support 4 and workpiece 5 forms is vacuumized, and rubber 3 plays the effect of sealing.The vibration power supply sends the sinusoidal waveform electric current of certain ultrasonic frequency, produce vibration with this piezoelectric ceramics that drives in the transverter, finally discharge with hyperacoustic form, by changing the size that power can be regulated ultrasonic amplitude, thereby obtain different laser repairing effects, 6 among Fig. 1 is the vibrational waveform on workpiece and the horn; Transverter converts electrical energy into the acoustic energy of certain frequency by piezoelectric ceramics wherein, and reaches the surface of transverter; Cooling system is to drive recirculated water by water pump to lower the temperature to transverter, and the transverter working temperature is remained on below 60 ℃, is conducive to ultrasonic vibration coupling device steady operation; Vacuum pad type horn is that cumulative satisfies need of work in order to amplify amplitude, be used for stable holding workpiece to be repaired on the other hand, improve the coupling of workpiece and horn, in addition, make to be repaired to separate with transverter, the high temperature of avoiding producing in the laser deposition repair process reaches transverter, influences the transverter works better.
As shown in Figure 2: flat-type workpiece type is to make workpiece and horn tight joint than being easier to by the negative pressure of vacuum mode, and this juncture is convenient and swift to be conducive to improve laser repairing efficient.The ultrasonic vibration coupling device is installed on the accessory plate of worktable, the flange at the node place by horn is fixed, to be repaired top of being coupled to horn, constituted compound luffing bar jointly, the junction is coupled with glycerine, so that air Ex-all that will be wherein, realize that according to the automatic frequency tracking function of ultrasonic power workpiece quality still can reach resonance state when changing, the adjustable power function is implemented in carries out the laser repairing test under the various amplitude.
As shown in Figure 3: the column workpiece type than flat-type workpiece be connected with horn relative complex some, combine closely for guaranteeing workpiece and horn, the horn top all will be complementary with the column structure size with the shape that is connected rubber with workpiece.Because rubber has certain shrinkability, so be need not change rubber ring under the little situation of column workpiece vary in diameter.For guaranteeing the coupling of column workpiece and horn, the junction should suitably increase couplant.
As shown in Figure 4: the ultrasonic vibration coupling device can be suitable for the less workpiece of curvature, and this type of workpiece and horn coupling are relatively poor, should carry out grinding process with the horn junction before installation, is conducive to improve its coupling.Though rubber has certain shrinkability, rubber is connected with curve surface work pieces to be difficult to reach fully and mates, and can increase its engaging force by improving suction pressure.
Claims (4)
1. a laser repairing ultrasonic vibration coupling device is characterized in that: comprise rubber, annular auxiliary support, horn, worktable, refrigerating unit and ultrasonic transducer; Ultrasonic transducer is fixed on the lower end of horn, the upper end of ultrasonic transducer is provided with refrigerating unit, horn is passed worktable and is fixed on the worktable with annular auxiliary support, horn is in the central authorities of annular auxiliary support, the upper end of annular auxiliary support is provided with rubber, and a side of annular auxiliary support is provided with and vacuumizes the hole.
2. a kind of laser repairing ultrasonic vibration coupling device as claimed in claim 1 is characterized in that: the compound luffing bar of described horn employing circular cone-cylinder.
3. a kind of laser repairing ultrasonic vibration coupling device as claimed in claim 1, it is characterized in that: described refrigerating unit is water-cooling pattern.
4. a kind of laser repairing ultrasonic vibration coupling device as claimed in claim 1, it is characterized in that: described supersonic transducer frequency is 17 kilo hertzs-23 kilo hertzs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200911208U CN203144513U (en) | 2013-02-27 | 2013-02-27 | Ultrasonic vibration coupling device for laser repairing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200911208U CN203144513U (en) | 2013-02-27 | 2013-02-27 | Ultrasonic vibration coupling device for laser repairing |
Publications (1)
| Publication Number | Publication Date |
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| CN203144513U true CN203144513U (en) | 2013-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200911208U Withdrawn - After Issue CN203144513U (en) | 2013-02-27 | 2013-02-27 | Ultrasonic vibration coupling device for laser repairing |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103132071A (en) * | 2013-02-27 | 2013-06-05 | 沈阳航空航天大学 | Ultrasonic vibration coupling apparatus for laser restoration |
| CN103624259B (en) * | 2013-12-06 | 2015-11-04 | 沈阳航空航天大学 | Based on metal parts laser deposition restorative procedure and the device of the regulation and control of preset gradient temperature field |
| CN105414763A (en) * | 2016-01-15 | 2016-03-23 | 长春理工大学 | Ultrasonic coaxial auxiliary laser welding method for plate heat exchanger |
| CN110405347A (en) * | 2019-07-12 | 2019-11-05 | 天津科技大学 | A kind of method and device of ultrasonic wave added laser stainless steel coloring |
-
2013
- 2013-02-27 CN CN2013200911208U patent/CN203144513U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103132071A (en) * | 2013-02-27 | 2013-06-05 | 沈阳航空航天大学 | Ultrasonic vibration coupling apparatus for laser restoration |
| CN103132071B (en) * | 2013-02-27 | 2016-08-03 | 沈阳航空航天大学 | A kind of laser repairing supersonic vibration coupling device |
| CN103624259B (en) * | 2013-12-06 | 2015-11-04 | 沈阳航空航天大学 | Based on metal parts laser deposition restorative procedure and the device of the regulation and control of preset gradient temperature field |
| CN105414763A (en) * | 2016-01-15 | 2016-03-23 | 长春理工大学 | Ultrasonic coaxial auxiliary laser welding method for plate heat exchanger |
| CN110405347A (en) * | 2019-07-12 | 2019-11-05 | 天津科技大学 | A kind of method and device of ultrasonic wave added laser stainless steel coloring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20150227 |
|
| EXPY | Termination of patent right or utility model | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130821 Effective date of abandoning: 20160803 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |