CN202297782U - Composite nozzle structure - Google Patents
Composite nozzle structure Download PDFInfo
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- CN202297782U CN202297782U CN 201120408653 CN201120408653U CN202297782U CN 202297782 U CN202297782 U CN 202297782U CN 201120408653 CN201120408653 CN 201120408653 CN 201120408653 U CN201120408653 U CN 201120408653U CN 202297782 U CN202297782 U CN 202297782U
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- Prior art keywords
- nozzle structure
- powder
- combining nozzle
- guide pipe
- adapter sleeve
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Abstract
The utility model discloses a composite nozzle structure. A powder channel, a wire channel and a shielding gas channel are arranged inside the composite nozzle structure. The composite nozzle structure comprises a connecting sleeve, a guide tube, a gas sleeve, a powder cavity and an annular gas cavity, wherein a powder feeding tube, a wire feeding tube and a gas feeding tube are arranged inside the connecting sleeve, the powder cavity is located on the bottom of the connecting sleeve, and the annular gas cavity is formed between the guide tube and the gas sleeve. The composite nozzle structure also comprises an outer sleeve and a plastic tube, wherein the connecting sleeve, the guide tube and the outer sleeve jointly form the powder cavity, one end of the plastic tube is connected with the shielding gas channel in the connecting sleeve, and the other end of the plastic tube is connected with the shielding gas channel in the guide tube. The composite nozzle structure provided by the utility model not only can greatly improve the coaxiality of powder, wire and shielding gas, but also can greatly simplify the structure, lower processing cost and simplify use process.
Description
Technical field
The utility model relates to the laser processing Application Areas, relates in particular to the combining nozzle structure of a kind of coaxial wire feed, powder feeding.
Background technology
Laser melting and coating technique is meant and is being coated on the matrix surface; Place selected coated material with different adding material modes; Through laser radiation make it to melt simultaneously with the matrix surface thin layer and rapid solidification after the extent of dilution that forms extremely low, become metallurgical binding with body material add the material cladding layer, thereby significantly improve the process method of the performance such as wear-resisting, anti-corrosion, heat-resisting, anti-oxidant of substrate material surface.Because the approximate adiabatic rapid heating process that high-energy-density produced of laser beam is little to the heat affecting of base material, the distortion that causes is also little, can obtain extremely low thinning ratio, thereby can keep the excellent properties of cladding material.
Laser melting and coating technique can be prepared high performance alloy surface on cheap mother metal, to reduce material cost, practice thrift valuable Rare Metals Materials.Mainly contain methods such as precoating, side direction powder feeding and coaxial powder-feeding at present.Precoating need be sticked and coated on workpiece surface to powder with sticker before laser fusion, then laser fusion.Shortcoming is a complex procedures, is easy to generate defectives such as pore.Because laser will melt the powder of precoating earlier, is only matrix then, thinning ratio is difficult to control.The side direction powder feeding can realize that powder and matrix melt simultaneously, but that laser beam and the powder zone of action of giving overlap degree is wayward, occurs easily departing from, and in laser cladding process, is difficult for ensuring the quality of products, and general powder using efficiency is on the low side.Coaxial feeding can address these problems, and laser is given with powder is coaxial, can make it to coincide with the focus point of powder through adjustment laser focusing point, obtains maximum powder using efficiency and minimum thinning ratio.
In laser cladding process; A committed step is arranged; Be about to laser and by the melt material synchronous transmission to shaping the position; And metallic substance is put on the machined surface continuously, accurately, equably do in the focal beam spot of scanning motion by desired trajectory, realize that the light material accurately is coupled (being synchronous feeding technology), this is the gordian technique that guarantees forming quality.
One of key part of realizing synchronous feeding is exactly powder feeding (silk) nozzle, and can it have directly determined metal parts be shaped smoothly, the size progress of part forming, surface quality, interior tissue performance etc.Combining nozzle of the prior art when general the use, metal powder, silk material and protection gas out-of-alignment problem often occur and produces; This badly influences experiment effect, thereby causes difficulty for the analysis of experimental result, causes misjudgment easily; And, this kind nozzle arrangements complicacy, the powder cavity space is too little; Use is loaded down with trivial details, is difficult to promote the use of.
Therefore, to above-mentioned technical problem, be necessary to provide a kind of structure improved combining nozzle structure, to overcome above-mentioned defective.
The utility model content
In view of this, the utility model provides a kind of combining nozzle structure, and this combining nozzle structure can not only improve the right alignment of powder, silk and protection gas greatly, and has simplified its structure greatly, has reduced tooling cost, has simplified use, is fit to promote the use of.
For realizing above-mentioned purpose, the utility model provides following technical scheme:
A kind of combining nozzle structure; Its inside is provided with powder channel, silk material passage and protection gas passage, and said combining nozzle structure comprises adapter sleeve, guide pipe, air-casing, powder chamber and annular air cavity, and said adapter sleeve inside offers powder conveying pipe, wire-feeding pipe and induction pipe; Said powder chamber is positioned at the bottom of adapter sleeve; Form said annular air cavity between said guide pipe and the air-casing, said combining nozzle structure also comprises overcoat and plastics tubing, the said powder of the common formation of said adapter sleeve, guide pipe and overcoat chamber; Said plastics tubing one end is connected with the interior protection gas passage of adapter sleeve, and the said plastics tubing the other end is connected with the interior protection gas passage of guide pipe.
Preferably, in above-mentioned combining nozzle structure, be provided with the wire feed pilot hole in the said guide pipe, O shape circle is equipped with in the outside of said wire feed pilot hole.
Preferably, in above-mentioned combining nozzle structure, said overcoat is threaded fixing with adapter sleeve, and said guide pipe and overcoat are fixed together.
Preferably, in above-mentioned combining nozzle structure, between said air-casing and the guide pipe thread fit.
Preferably, in above-mentioned combining nozzle structure, said air-casing end face is taper.
Preferably, in above-mentioned combining nozzle structure, said adapter sleeve is the adapter sleeve of stainless steel.
Preferably, in above-mentioned combining nozzle structure, said guide pipe is the guide pipe of red copper material.
Preferably, in above-mentioned combining nozzle structure, said overcoat is the overcoat of stainless steel.
Preferably, in above-mentioned combining nozzle structure, said air-casing is the air-casing of red copper material.
Can find out that from technique scheme the combining nozzle structure of the utility model embodiment can not only improve the right alignment of powder, silk and protection gas greatly, and has simplified its structure greatly, has reduced tooling cost, has simplified use, is fit to promote the use of.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing of the relevant the utility model in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the sectional view of the utility model combining nozzle structure;
Fig. 2 be among Fig. 1 the combining nozzle structure draw a circle the part partial enlarged drawing;
Fig. 3 is the sectional view of combining nozzle structure A-A position among Fig. 1;
Fig. 4 is the phantom view of the utility model combining nozzle structure;
Fig. 5 be among Fig. 4 part combining nozzle structure along the sectional view of B-B position.
1, adapter sleeve 2, guide pipe 3, overcoat 4, air-casing 5, plastics tubing 6, O shape circle 7, powder conveying pipe 8, wire-feeding pipe 9, induction pipe 10, powder chamber 11, air cavity 12, powder feeding hole
Embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is described in detail, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skills are obtained under the prerequisite of not making creative work belongs to the scope that the utility model is protected.
The utility model discloses a kind of combining nozzle structure, this combining nozzle structure can not only improve the right alignment of powder, silk and protection gas greatly, and has simplified its structure greatly, cuts down finished cost, and simplifies use, is fit to promote the use of.
See also Fig. 1 to shown in Figure 5, said combining nozzle structure upper end is connected with a laser head.Said combining nozzle structure comprises adapter sleeve 1, guide pipe 2, overcoat 3, air-casing 4, plastics tubing 5, O shape circle 6, powder chamber 10, annular air cavity 11 and spacer sleeve 12.Said O shape is enclosed 6 resistance to air loss in order to assurance powder feeding passage, thereby impels the powder a fluid stream more even.Said adapter sleeve 1, guide pipe 2 and overcoat 3 be common to constitute said powder chamber 10.Said annular air cavity 10 is positioned at the bottom of adapter sleeve 1.The lower end of said air-casing 4 and guide pipe 2 forms said annular air cavity 11.
Consider that combining nozzle structure lower end bearing intensive laser radiation and thermal radiation in the course of the work, and red copper there is good reflectivity to laser, and good thermal conductivity, so select the manufactured materials of red copper for use as guide pipe 2 and air-casing 4.Consider anti-oxidant and requirement of strength, select for use the 1Cr18Ni9Ti stainless steel to make as the prepared material of parts such as adapter sleeve 1, overcoat 3.
See also shown in Figure 1ly, said adapter sleeve 1 is the main matrix part of combining nozzle structure, and said adapter sleeve 1 is realized being connected of nozzle and top laser head.Said adapter sleeve 1 inside from left to right offers powder conveying pipe 7, wire-feeding pipe 8 and the induction pipe 9 that is communicated with the upper end laser head respectively.The upper, middle and lower of said combining nozzle structure is fixing through being threaded successively, is respectively equipped with in the said combining nozzle structure to be provided with powder channel, silk material passage and protection gas passage.
Because the existence of manufacturing, installation error, said combining nozzle structure needs convenient and reliable setting device, makes nozzle adjustable in the certain space scope, makes itself and laser really coaxial.Help guaranteeing the homogeneity of cladding layer all directions, improve forming quality.So said adapter sleeve 1 uses three-dimensional fixation and setting device, make nozzle can carry out moving of three-dimensional position, thereby powder and silk material can be converged with laser accurately.
See also shown in Figure 1ly, be provided with the wire feed pilot hole in the said guide pipe 2, said O shape circle 6 is equipped with in the outside of said wire feed pilot hole.Said wire feed pilot hole can lead and aligns the silk material.Said guide pipe 2 is connected with adapter sleeve 1 bottom, makes said wire-feeding pipe 8 belows dock with the wire feed pilot hole of guide pipe 2, so is provided with, and can accurately silk material vertical transport be arrived the below.Before guide pipe 2 is installed, earlier a silk material front end of seeing off in the wire-feeding pipe 8 is inserted in the wire feed pilot hole in the guide pipe 2, like this under the effect of wire feeding machine, the silk material can be smoothly wire feed pilot hole vertical transport on the guide pipe 2.
Said overcoat 3 is that outside screw is connected with adapter sleeve 1 lower end, and this has not only played and has connected the effect of overcoat 3 and adapter sleeve 1, and can play fixed action to guide pipe 2.
Said air-casing 4 upper ends screw through the outside screw of IT and said guide pipe 2, and protection gas flows into from induction pipe 9, flows to annular air cavity 11 through plastics tubing 5, and ejection forms the ring protection gas curtain downwards then.The deflection of the flow of powder that said ring protection gas curtain can keep spraying reduces its angle of divergence, realizes the protection to the molten bath.Said air-casing 4 lower edge end faces are taper, can part dispersive powder be converged again, improve the utilization ratio of powder, play the effect of reflector laser simultaneously, the protection laser nozzle.
See also shown in Figure 1; Said plastics tubing 5 one ends are connected with adapter sleeve 1 interior protection gas passage; Said plastics tubing 5 the other ends are connected with guide pipe 2 interior protection gas passages, through plastics tubing 5 is set, can conveniently protect gas to get into annular air cavities 11 from induction pipe 9; Simple in structure, simplified whole structure of nozzle.
Said powder conveying pipe 7 is led the powder of carrying in the powder chamber 10 that adapter sleeve 1, overcoat 3 and guide pipe 2 constitute; When the powder that said powder conveying pipe 7 is carried is led in annular air cavity 10; Because what send into is that gas carries powder; Powder flows in the chamber under the effect of air-flow, stirs, and the coaxial array powder feeding hole on the guide pipe 2 is carried vertically downward and sprayed at last.
See also shown in Figure 5ly, powder feeding hole 12 numbers are six in the utility model combining nozzle structure, certainly in other embodiments, also can be set to three by powder feeding hole.Said powder focus point is of a size of 1.5-4 millimeter (according to the defocusing amount adjustable size).Said powders point is 8-18 millimeter (according to a laser focusing bundle size adjustable) with nozzle lower end distance.
What this combining nozzle structure ecto-entad sprayed successively thus is protection gas, powder, silk material, carries out coaxial synchronous wire feed powder feeding.Be equipped with three-dimensional fixation in the actual use of this combining nozzle structure and setting device can realize processing such as comprehensive laser welding, cladding.
The utility model combining nozzle structure can not only improve the right alignment of powder, silk and protection gas greatly, and has simplified its structure greatly, has reduced tooling cost, has simplified use, is fit to promote the use of.
The utility model combining nozzle structure can conveniently protect gas to get into annular air cavity 11 from induction pipe 9 through plastics tubing 5 is set, and is simple in structure, simplified structure of nozzle.
The utility model combining nozzle structure can converge part dispersive powder through air-casing 4 lower edge end faces are arranged to taper again, improves the utilization ratio of powder, plays the effect of reflector laser simultaneously, the protection laser nozzle.
The utility model combining nozzle structure is easy to use, and the external various pipelines of nozzle can not twine.
The powder chamber and the air cavity of the utility model combining nozzle inside configuration are bigger, make powder and protection gas can in cavity, fully flow, stir, and be more even during ejection.
The utility model combining nozzle structure can fully guarantee powder, the gentle relative position of silk, does not need in the experimentation to debug once more.
The utility model combining nozzle structure adopts the manufactured materials of red copper as guide pipe 2 and air-casing 4, can reflect the laser radiation and the thermal radiation of bearing in the combining nozzle arrangement works process, and red copper has good thermal conductivity; Adopt the 1Cr18Ni9Ti stainless steel to make simultaneously, can guarantee anti-oxidant and requirement of strength as the prepared material of parts such as adapter sleeve 1, overcoat 3.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the utility model or scope in other embodiments among this paper.Therefore, the utility model will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (9)
1. combining nozzle structure; Its inside is provided with powder channel, silk material passage and protection gas passage; Said combining nozzle structure comprises adapter sleeve (1), guide pipe (2), air-casing (4), powder chamber (10) and annular air cavity (11); Said adapter sleeve (1) inside offers powder conveying pipe (7), wire-feeding pipe (8) and induction pipe (9), and said powder chamber (10) is positioned at the bottom of adapter sleeve (1), forms said annular air cavity (11) between said guide pipe (2) and the air-casing (4); It is characterized in that: said combining nozzle structure also comprises overcoat (3) and plastics tubing (5); Said adapter sleeve (1), guide pipe (2) and overcoat (3) constitute said powder chamber (10) jointly, and said plastics tubing (5) one ends are connected with the interior protection gas passage of adapter sleeve (1), and said plastics tubing (5) the other end is connected with the interior protection gas passage of guide pipe (2).
2. combining nozzle structure according to claim 1 is characterized in that: said guide pipe is provided with the wire feed pilot hole in (2), and O shape circle (6) is equipped with in the outside of said wire feed pilot hole.
3. combining nozzle structure according to claim 1 is characterized in that: said overcoat (3) is threaded fixing with adapter sleeve (1), and said guide pipe (2) is fixed together with overcoat (3).
4. combining nozzle structure according to claim 1 is characterized in that: be thread fit between said air-casing (4) and the guide pipe (2).
5. combining nozzle structure according to claim 1 is characterized in that: said air-casing (4) end face is taper.
6. combining nozzle structure according to claim 1 is characterized in that: said adapter sleeve (1) is the adapter sleeve of stainless steel (1).
7. combining nozzle structure according to claim 1 is characterized in that: said guide pipe (2) is the guide pipe (2) of red copper material.
8. combining nozzle structure according to claim 1 is characterized in that: said overcoat (3) is the overcoat of stainless steel (3).
9. combining nozzle structure according to claim 1 is characterized in that: said air-casing (4) is the air-casing (4) of red copper material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120408653 CN202297782U (en) | 2011-10-24 | 2011-10-24 | Composite nozzle structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120408653 CN202297782U (en) | 2011-10-24 | 2011-10-24 | Composite nozzle structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202297782U true CN202297782U (en) | 2012-07-04 |
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ID=46366717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120408653 Expired - Fee Related CN202297782U (en) | 2011-10-24 | 2011-10-24 | Composite nozzle structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202297782U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103358554A (en) * | 2013-08-07 | 2013-10-23 | 苏州江南嘉捷机电技术研究院有限公司 | Three-dimensional printer printhead capable of rapidly crossing filaments |
| CN107604194A (en) * | 2017-10-31 | 2018-01-19 | 湖北汽车工业学院 | A kind of wire feed powder feeding coupling device based on arc deposited metal-base composites |
| CN112011794A (en) * | 2020-08-31 | 2020-12-01 | 李志华 | Laser cladding device and method for numerical control spindle abrasion taper hole |
-
2011
- 2011-10-24 CN CN 201120408653 patent/CN202297782U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103358554A (en) * | 2013-08-07 | 2013-10-23 | 苏州江南嘉捷机电技术研究院有限公司 | Three-dimensional printer printhead capable of rapidly crossing filaments |
| CN107604194A (en) * | 2017-10-31 | 2018-01-19 | 湖北汽车工业学院 | A kind of wire feed powder feeding coupling device based on arc deposited metal-base composites |
| CN107604194B (en) * | 2017-10-31 | 2022-07-15 | 湖北汽车工业学院 | Wire and powder feeding coupling device based on arc deposition metal matrix composite |
| CN112011794A (en) * | 2020-08-31 | 2020-12-01 | 李志华 | Laser cladding device and method for numerical control spindle abrasion taper hole |
| CN112011794B (en) * | 2020-08-31 | 2022-08-23 | 河北加迈激光科技有限公司 | Laser cladding device and method for numerical control spindle abrasion taper hole |
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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: 20120704 Termination date: 20151024 |
|
| EXPY | Termination of patent right or utility model |