CN202963453U - Laser rapid prototyping coaxial powder conveying nozzle with protective cover - Google Patents
Laser rapid prototyping coaxial powder conveying nozzle with protective cover Download PDFInfo
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- CN202963453U CN202963453U CN2012206211036U CN201220621103U CN202963453U CN 202963453 U CN202963453 U CN 202963453U CN 2012206211036 U CN2012206211036 U CN 2012206211036U CN 201220621103 U CN201220621103 U CN 201220621103U CN 202963453 U CN202963453 U CN 202963453U
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- protective cover
- powder
- inner sleeve
- overcoat
- outer sleeve
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Laser Beam Processing (AREA)
Abstract
The utility model discloses a laser rapid prototyping coaxial powder conveying nozzle with a protective cover. The laser rapid prototyping coaxial powder conveying nozzle mainly comprises an inner sleeve, an outer sleeve, a protective cover inner sleeve, a protective cover outer sleeve, a connecting pipe and a water pipe. The inner sleeve and the outer sleeve in the powder conveying nozzle are matched to form an inner cooling cavity; the water pipe and the connecting pipe are connected and arranged on the outer sleeve; the center of the inner sleeve is provided with a conical optical path cavity; four powder inlets are uniformly distributed on the edge of the outer sleeve; the bottom ends of the powder inlets are provided with powder conveying channels corresponding to the powder inlets; the powder conveying channels are integrally contracted; the protective cover outer sleeve and the protective cover inner sleeve are connected to form an outer cooling cavity and are integrally arranged on the outer sleeve; and the upper end face of the protective cover outer sleeve is uniformly provided with two water inlets/outlets. The laser rapid prototyping coaxial powder conveying nozzle is simple and compact in integral structure, easy to assemble and disassemble and convenient to mount and debug; meanwhile, in order to solve the problems of reflection and radiation of laser beams in the laser processing process, the protective cover with a cooling structure is particularly designed, and is used for isolating the irradiation of the reflected laser beams to the outside to guarantee the stable operation of other facilities.
Description
Technical field: the utility model relates to a kind of nozzle, and especially a kind of laser fast forming coaxial powder-feeding nozzle with protective cover belongs to technical field of laser processing.
Background technology: Laser Rapid Prototyping Technique is a kind of advanced person's Rapid Manufacturing Technology, it has become a kind of emerging advanced manufacturing methods of directly making fast 3-dimensional metal part and reparation precious metal parts, use this technology and can greatly shorten new product development to the time that puts goods on the market, shorten the process-cycle, reduce the product processing cost, for the enterprise participation market competition gains time, in view of above plurality of advantages, this technology has been widely used in the industries such as space flight and aviation, petrochemical industry, electronic information, energy environment.Powder-feeding nozzle is as one of critical component of Laser Rapid Prototyping Technique, is related to the basic problems such as the dimensional accuracy that improves formation of parts and mechanical property, thereby become the study hotspot of each R﹠D institution.At present automatic powder feeding system relatively more commonly used has two kinds of coaxial powder-feeding and side direction powder feedings, because the powder flow field of coaxial powder-feeding is symmetric, there is no the restriction of directionality in carrying out the part forming manufacture process, therefore its application is comparatively extensive.Coaxial powder-feeding nozzle also exists problems when having advantage: in During Laser Rapid Forming, be subjected to the impact of the factors such as powder particle bounce-back, laser beam reflection, powder particle might adhere to the powder feeding channel outlet and then stop up whole powder feeding passage; After gas powder mixture sprays from the powder feeding passage, converging property is relatively poor, and diffusion phenomena are serious, thereby directly affect surface quality and the internal soundness of drip molding; The powder-feeding nozzle overall structure is too complicated, and higher to required precision when manufacturing, assembling, the adjustment and installation workload is large.
The utility model content: for above-mentioned the deficiencies in the prior art, the utility model provides the laser fast forming coaxial powder-feeding nozzle with protective cover that a kind of powder feeding is even, simple and practical, converging property of powder is good.
For achieving the above object, the technical solution adopted in the utility model is: a kind of laser fast forming coaxial powder-feeding nozzle with protective cover mainly comprises inner sleeve, overcoat, protective cover inner sleeve, protective cover overcoat, tube connector, water pipe six parts.In powder-feeding nozzle, inner sleeve coordinates cooling chamber in formation with overcoat, and water pipe is connected with tube connector and is installed to outer putting.The inner sleeve Center has the light path chamber of taper.Uniform four powder inlets in overcoat edge, powder inlet bottom are the powder feeding passage corresponding with it, and powder feeding passage integral body is shrinkage type.The protective cover overcoat is connected with the protective cover inner sleeve and forms outer cooling chamber, and integral installation puts outward, at uniform two paddle holes in protective cover overcoat upper surface.
Angle between powder feeding passage axis and horizontal line is 70 ° of left and right.
The powder feeding passage adopts and shrinks outlet, and shrinking angle is 2.5 °.
The powder feeding channel diameter is 1.5mm.
The utility model overall structure is simply compact; assembling, dismounting are easily; be convenient to installation and debugging; while is for reflection, the radiation problem of laser beam in laser processing procedure; special design with the protective cover of cooling structure; be used for isolated reflection laser beam irradiation to external world afterwards, guarantee the stable operation of other facilities.
Description of drawings:
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the utility model top plan view.
Fig. 3 is the structural representation of inner sleeve.
The specific embodiment:
As shown in Figure 1-Figure 3: a kind of laser fast forming coaxial powder-feeding nozzle with protective cover mainly comprises inner sleeve 2, overcoat 3, protective cover inner sleeve 7, protective cover overcoat 8, tube connector 11, water pipe 12 6 parts.In powder-feeding nozzle inner sleeve 2 coordinate with overcoat 3 form in cooling chamber 4, water pipe 12 is connected with tube connector 11 and is installed on overcoat 3, as the use of the Inlet and outlet water of interior cooling chamber 4.Inner sleeve 2 Centers have the light path chamber 1 of taper, so that laser beam passes.Uniform four powder inlets 5 in overcoat 3 edges, powder inlet 5 bottoms are the powder feeding passage 6 corresponding with it, powder feeding passage 6 whole for shrinkage type with the converging property to the raising powder stream.Protective cover overcoat 8 is connected with protective cover inner sleeve 7 and forms outer cooling chamber 10, on integral installation overcoat 3, and at uniform two paddle holes 9 in protective cover overcoat 8 upper surfaces, cooling with realization to powder-feeding nozzle.
The powder feeding passage can be uniform 4 or 6 along central axis, and part is used for doing the powder feeding passage, and part is used for loading protection gas, prevents from oxidation occurring in the process of Laser Processing.
The overcoat bottom is designed with tapered slope, and this inclined-plane particle that can effectively prevent from rebounding adheres to the powder feeding passage, guarantees the stability of powder-feeding nozzle work.
The light path chamber is designed to taper, and after laser beam line focus mirror focuses on, spot diameter presents diminishing trend, thereby conical cavity is more suitable for passing of laser beam.
The course of work:
Laser beam is vertically injected after reflect focalization in light path chamber 1, and passes light path chamber 1 and shine on the matrix of nozzle below.Gas powder mixture enters in powder feeding passage 6 through powder inlet 5, and by its lower end ejection, four road gas powder mixtures converge gradually and form a particle a fluid stream, carry out the laser fast forming manufacturing under the irradiation of laser beam.Meanwhile, an extraneous cooling water part enters in interior cooling chamber 4 through tube connector 11 and water pipe 12, circulation was discharged by above-mentioned pipeline after one week, take away the large calorimetric that produces in process, thereby reach cooling effect, another part cooling water enters in outer cooling chamber 10 through paddle hole 9, is discharged by this outlet after the week of circulating equally.
Claims (6)
1. the laser fast forming coaxial powder-feeding nozzle with protective cover, is characterized in that: mainly comprise inner sleeve, overcoat, protective cover inner sleeve, protective cover overcoat, tube connector, water pipe six parts; In powder-feeding nozzle, inner sleeve coordinates cooling chamber in formation with overcoat, and water pipe is connected with tube connector and is installed to outer putting; The inner sleeve Center has the light path chamber of taper; Uniform four powder inlets in overcoat edge, powder inlet bottom are the powder feeding passage corresponding with it, and powder feeding passage integral body is shrinkage type; The protective cover overcoat is connected with the protective cover inner sleeve and forms outer cooling chamber, and integral installation puts outward, at uniform two paddle holes in protective cover overcoat upper surface.
2. a kind of laser fast forming coaxial powder-feeding nozzle with protective cover as claimed in claim 1, it is characterized in that: the angle between described powder feeding passage axis and horizontal line is 70 °.
3. a kind of laser fast forming coaxial powder-feeding nozzle with protective cover as claimed in claim 1 is characterized in that: described powder feeding passage adopts and shrinks outlet, and shrinking angle is 2.5 °.
4. a kind of laser fast forming coaxial powder-feeding nozzle with protective cover as claimed in claim 1, it is characterized in that: described powder feeding channel diameter is 1.5mm.
5. a kind of laser fast forming coaxial powder-feeding nozzle with protective cover as claimed in claim 1, it is characterized in that: described powder feeding passage can be uniform 4 or 6 along central axis.
6. a kind of laser fast forming coaxial powder-feeding nozzle with protective cover as claimed in claim 1 is characterized in that: described overcoat bottom is designed with tapered slope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206211036U CN202963453U (en) | 2012-11-21 | 2012-11-21 | Laser rapid prototyping coaxial powder conveying nozzle with protective cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206211036U CN202963453U (en) | 2012-11-21 | 2012-11-21 | Laser rapid prototyping coaxial powder conveying nozzle with protective cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202963453U true CN202963453U (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206211036U Expired - Fee Related CN202963453U (en) | 2012-11-21 | 2012-11-21 | Laser rapid prototyping coaxial powder conveying nozzle with protective cover |
Country Status (1)
| Country | Link |
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| CN (1) | CN202963453U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103990800A (en) * | 2014-05-29 | 2014-08-20 | 烟台泰利汽车模具制造有限公司 | Pressure relief type paraxial powder feeding spray nozzle device for laser 3D printer |
| CN105170979A (en) * | 2015-11-03 | 2015-12-23 | 哈尔滨工业大学 | Side-shaft powder-feeding nozzle for laser additive manufacturing |
| CN107130240A (en) * | 2017-06-29 | 2017-09-05 | 温州大学 | Laser melting-painting nozzle, laser cladding apparatus and laser cover melting method |
| CN107812943A (en) * | 2017-11-13 | 2018-03-20 | 中国科学院力学研究所 | A kind of laser gain material manufacture remanufactures profile-followed guard method and protective cover |
| CN107876764A (en) * | 2017-11-16 | 2018-04-06 | 清华大学 | A kind of laser formation head and the oxidation controlling method during laser stereoforming |
| CN107971607A (en) * | 2017-12-28 | 2018-05-01 | 大连威尔博合金科技有限公司 | A kind of metal dust and ceramic powders mixing build-up welding apparatus |
| CN113547744A (en) * | 2021-07-20 | 2021-10-26 | 南昌航空大学 | Split type directional energy deposition powder feeding spray head |
| CN113930758A (en) * | 2021-09-23 | 2022-01-14 | 苏州大学 | High-adaptability anti-oxidation laser cladding device |
-
2012
- 2012-11-21 CN CN2012206211036U patent/CN202963453U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103990800A (en) * | 2014-05-29 | 2014-08-20 | 烟台泰利汽车模具制造有限公司 | Pressure relief type paraxial powder feeding spray nozzle device for laser 3D printer |
| CN103990800B (en) * | 2014-05-29 | 2016-07-13 | 烟台泰利汽车模具股份有限公司 | A kind of pressure release type paraxonic powder-feeding nozzle device for laser 3D printer |
| CN105170979A (en) * | 2015-11-03 | 2015-12-23 | 哈尔滨工业大学 | Side-shaft powder-feeding nozzle for laser additive manufacturing |
| CN107130240A (en) * | 2017-06-29 | 2017-09-05 | 温州大学 | Laser melting-painting nozzle, laser cladding apparatus and laser cover melting method |
| CN107812943A (en) * | 2017-11-13 | 2018-03-20 | 中国科学院力学研究所 | A kind of laser gain material manufacture remanufactures profile-followed guard method and protective cover |
| CN107812943B (en) * | 2017-11-13 | 2019-07-26 | 中国科学院力学研究所 | A kind of manufacture of laser gain material remanufactures profile-followed guard method and protective cover |
| CN107876764A (en) * | 2017-11-16 | 2018-04-06 | 清华大学 | A kind of laser formation head and the oxidation controlling method during laser stereoforming |
| CN107876764B (en) * | 2017-11-16 | 2020-01-21 | 清华大学 | Laser forming head and oxidation control method in laser three-dimensional forming process |
| CN107971607A (en) * | 2017-12-28 | 2018-05-01 | 大连威尔博合金科技有限公司 | A kind of metal dust and ceramic powders mixing build-up welding apparatus |
| CN113547744A (en) * | 2021-07-20 | 2021-10-26 | 南昌航空大学 | Split type directional energy deposition powder feeding spray head |
| CN113930758A (en) * | 2021-09-23 | 2022-01-14 | 苏州大学 | High-adaptability anti-oxidation laser cladding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20131121 |