CN208250418U - A kind of pin type coaxial powder feeding head - Google Patents
A kind of pin type coaxial powder feeding head Download PDFInfo
- Publication number
- CN208250418U CN208250418U CN201820562106.4U CN201820562106U CN208250418U CN 208250418 U CN208250418 U CN 208250418U CN 201820562106 U CN201820562106 U CN 201820562106U CN 208250418 U CN208250418 U CN 208250418U
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- Prior art keywords
- powder feeding
- main component
- needle
- gas nozzle
- powder
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- 239000000843 powder Substances 0.000 title claims abstract description 115
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000001816 cooling Methods 0.000 claims abstract description 24
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 17
- 229910052802 copper Inorganic materials 0.000 claims description 17
- 239000010949 copper Substances 0.000 claims description 17
- 238000009434 installation Methods 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims 1
- 239000011159 matrix material Substances 0.000 abstract description 11
- 230000000903 blocking effect Effects 0.000 abstract description 8
- 238000005253 cladding Methods 0.000 abstract description 8
- 239000011248 coating agent Substances 0.000 abstract description 7
- 238000000576 coating method Methods 0.000 abstract description 7
- 238000004372 laser cladding Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000000191 radiation effect Effects 0.000 description 2
- 206010061688 Barotrauma Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003031 feeding effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
Landscapes
- Laser Beam Processing (AREA)
Abstract
The utility model discloses a kind of pin type coaxial powder feeding heads, comprising: main component, the powder feeding needle being arranged in main component, the protection gas nozzle being arranged in outside main component and the water cooling mouth being arranged on protection gas nozzle；There is tapered laser cavity, the center line of laser cavity is overlapped with the center line of main component at the main component center；Multiple needle trays are evenly distributed with around laser cavity on the main component, needle tray runs through main component upper and lower ends, and the centerline dip of needle tray is in the center line of main component；The powder feeding needle is mounted on needle tray, and powder feeding needle arrival end is located in needle tray, and powder feeding needle outlet end stretches out needle tray and is located at needle tray lower end.By the above-mentioned means, the utility model can make cladding powder have good positioning, the utilization rate of powder is improved；And can control the output angle of coating power, generation diverging is attached to powder feeding mouth and causes powder feeding channel blockage after avoiding powder from colliding matrix；Feeding head can also be cooled down, the blocking of powder channel caused by preventing temperature excessively high even damages.
Description
Technical field
The utility model relates to laser melting coating and laser gain material manufacturing fields, more particularly to a kind of pin type coaxial powder-feeding
Head.
Background technique
Laser melting coating is also known as laser cladding or laser cladding, is a kind of new process for modifying surface.It passes through in matrix table
Cladding material, and the method for being allowed to the consolidation together with matrix surface thin layer using the laser beam of high-energy-density are added in face, in matrix
Surface forms the filling cladding layer with it for metallurgical bonding.
Laser cladding material mainly passes through feeding head and is delivered to matrix surface at present, according to powder path and beam path
Relative position, feeding head can be divided into three kinds of coaxial powder-feeding, preset powder feeding and paraxonic powder feeding forms.Compare preset powder feeding and paraxonic
Powder feeding, coaxial powder-feeding mode powder using efficiency is higher, powder feeding is uniform, and can be applied to curved surface spherical surface etc. irregular anisotropic face is molten
It applies, application is more universal.
Existing coaxial powder feeding head mostly uses annular conical cavities structure, which in actual use, has as follows not
Foot: (1) by powder feeding effects of air pressure, coating power is more dispersed in feeding head exit, and powder using efficiency is low；(2) coating power
Output angle is not easy to control, dissipates after high temperature fused state metal powder collision matrix, is liable to stick to powder feeding mouth, causes
Powder feeding channel blockage；(3) when ring structure feeding head goes out light for high-power laser cladding or for a long time, by reflected light radiation,
Feeding head temperature be easy it is excessively high, cause powder channel blocking even damage.
Utility model content
The utility model can make cladding powder fixed mainly solving the technical problems that provide a kind of pin type coaxial powder feeding head
Position is good, improves the utilization rate of powder；And can control the output angle of coating power, it is dissipated after avoiding powder from colliding matrix
It is attached to powder feeding mouth and causes powder feeding channel blockage；Feeding head can also be cooled down, powder caused by preventing temperature excessively high is logical
Road blocking even damages.
In order to solve the above technical problems, the technical solution that the utility model uses is: providing a kind of pin type and coaxially send
Prostitute, comprising: main component, the powder feeding needle being arranged in main component, the protection gas nozzle being arranged in outside main component and setting are being protected
Protect the water cooling mouth on gas nozzle；There is tapered laser cavity at the main component center, the center line of laser cavity and main component
Center line is overlapped；Multiple needle trays are evenly distributed with around laser cavity on the main component, needle tray runs through main component upper and lower ends, needle
The centerline dip of slot is in the center line of main component；The powder feeding needle is mounted on the needle tray, and powder feeding needle arrival end is located at needle
In slot, powder feeding needle outlet end stretches out needle tray and is located at needle tray lower end.
Preferably, there are gaps between the protection gas nozzle inner sidewall and the main component lateral wall as gas passage,
Gas passage leads to the side where the powder feeding needle；Position far from protection gas nozzle extension end on the outside of the protection gas nozzle is equipped with
Two air inlets communicated with gas passage, central symmetry of two air inlets about protection gas nozzle, and between two air inlets
180 ° of difference.
Preferably, the main component lateral surface is equipped with stepped boss close to the position of the upper end, sets on stepped boss
There is the first installation screw thread for being fixedly connected with the protection gas nozzle.
Preferably, the plane where the protection gas nozzle stretches out the main component lower end close to the end of the powder feeding needle.
Preferably, have Packed water cooling cavity between the water cooling mouth and the protection gas nozzle, be provided on water cooling mouth with
The inlet and outlet that water cooling cavity communicates, inlet and outlet are oppositely arranged.
Preferably, the second installation screw thread for being fixedly connected with the water cooling mouth is equipped on the outside of the protection gas nozzle.
Preferably, the angle between the needle tray center line and main component center line is a；The lateral surface of the main component is in
Coniform, the angle of main component lateral surface and main component center line is b, and angle b is greater than angle a；The protection gas nozzle is class cone
The angle of the hollow body of shape, the medial surface and protection gas nozzle center line of protecting gas nozzle is c, and angle c is equal with angle b.
Preferably, the extension elongation that needle tray is stretched out on the powder feeding needle is 1mm~2mm；The powder feeding needle is elongated copper
Pipe, copper pipe have two sections of class holes as powder feeding channel.
Preferably, the outer diameter of the copper pipe is 5mm, and two internal diameters in two sections of class holes are respectively 3mm and 1mm on copper pipe,
Wherein, the hole length that internal diameter is 1mm on copper pipe is no more than 10mm.
Preferably, there are three the needle trays；The needle tray is cylinder empty slot.
The beneficial effects of the utility model are: the coaxial powder feeding head powder feeding of the utility model opposed annular conical cavities structure
Last beam directionality is preferable, and powder using efficiency is high；Adjusting powder feeding can be changed by replacing the powder feeding needle of different heart diameter models
The size of amount, and replacement operation is convenient, while can also be applied to the industrial processes compared with fine inner diameter structure；It is equipped with cooling knot
Structure has preferable heat dissipation performance；Powder feeding needle fewer parts is exposed in air, and light radiation effect is smaller, is blocked
Possibility is low；Furthermore it can quickly be solved by replacing powder feeding needle as blocking occurs, maintenance cost is low.
Detailed description of the invention
Fig. 1 is a kind of sectional structure signal of the first preferred embodiment use state of pin type coaxial powder-feeding of the utility model
Figure；
Fig. 2 is a kind of schematic cross-sectional view of pin type coaxial powder feeding head of the utility model；
Fig. 3 is a kind of overlooking structure diagram of pin type coaxial powder feeding head of the utility model；
Fig. 4 is a kind of schematic cross-sectional view of the powder feeding needle of pin type coaxial powder feeding head of the utility model.
The components in the drawings are labeled as follows: 1, main component；11, laser cavity；12, needle tray；13, stepped boss；2, it send
Powder needle；21, two sections of class holes；3, gas nozzle is protected；31, air inlet；32, gas passage；33, air-flow；4, water cooling mouth；41, it intakes
Mouthful；42, water cooling cavity；43, water outlet；5, matrix；6, laser molten pool.
Specific embodiment
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, to make the protection scope of the utility model apparent clear
Define.
The utility model embodiment includes: referring to FIG. 1 to FIG. 4,
A kind of pin type coaxial powder feeding head, comprising: main component 1, is arranged in main component the powder feeding needle 2 being arranged in main component 1
Protection gas nozzle 3 outside 1 and the water cooling mouth 4 being arranged on protection gas nozzle 3.
There is tapered laser cavity 11, the center line of laser cavity 11 and the center of main component 1 at 1 center of main component
Line is overlapped；It is uniformly distributed around laser cavity 11 there are three needle tray 12 on the main component 1, needle tray 12 runs through main component about 1 two
End, angle of the centerline dip of needle tray 12 between the center line of main component 1,1 center line of 12 center line of needle tray and main component
Laser molten pool 6 for a, on 12 center line of needle tray matrix corresponding with the angle point of 1 center line of main component, 5 surface.The needle tray 12
For cylinder empty slot, in order to install powder feeding needle 2.
The powder feeding needle 2 is mounted on the needle tray 12, and 2 arrival end of powder feeding needle is located in needle tray 12,2 outlet end of powder feeding needle
It stretches out needle tray 12 and is located at 12 lower end of needle tray；Delivering powder beam directionality is preferable.The extension elongation of stretching needle tray is on the powder feeding needle 2
2mm, the i.e. outlet end of powder feeding needle 2 to the distance between main component 1 be 2mm.The powder feeding needle 2 is elongated copper pipe, copper pipe tool
There are two sections of class holes 21 as powder feeding channel；The outer diameter of the copper pipe is 5mm, on copper pipe in two of two sections of class holes 21
Diameter is respectively 3mm and 1mm, wherein the hole length that internal diameter is 1mm on copper pipe is no more than 10mm.When installation, on copper pipe internal diameter compared with
Thin one end is 2 outlet end of powder feeding needle, which stretches out needle tray 12；Can by replace the powder feeding needle 2 of different heart diameter models come
Change the size for adjusting powder sending quantity, and replacement operation is convenient；Occur blocking can by replacement powder feeding needle 2 quickly solve, maintenance at
This is low.On the one hand copper pipe considers actual process difficulty of processing using stepped hollow structure, on the other hand, when powder feeding channel occurs
When blocking, directly replacement powder feeding needle 2 can simply, quickly solve a problem promptly, and it is convenient to operate, and save the time.
For the lateral surface of the main component 1 in coniform, the angle of 1 lateral surface of main component and 1 center line of main component is b, angle
It spends b and is greater than angle a.1 lateral surface of main component is equipped with stepped boss 13 close to the position of the upper end, on stepped boss 13
Equipped with the first installation screw thread for being fixedly connected with the protection gas nozzle 3, to protect the installation of gas nozzle 3.
The protection gas nozzle 3 is the hollow body of class cone cell, protects the medial surface of gas nozzle 3 and the folder of protection 3 center line of gas nozzle
Angle is c, and angle c is equal with angle b；There are gap works between 3 inner sidewall of protection gas nozzle and 1 lateral wall of the main component
For gas passage 32, gas passage 32 leads to the side where the powder feeding needle 2；From the protective gas edge that gas passage 32 comes out
The outer side path movement of cladding powder, can prevent metal powder diverging from overflowing laser molten pool 6, while gas passage 32 can at equal intervals
So that air-flow 33 is gentle.The protection gas nozzle 3 close to the end of the powder feeding needle 2 stretch out 1 lower end of main component where it is flat
Face.Far from protecting the position of 3 extension end of gas nozzle to set, there are two the air inlets communicated with gas passage 32 in 3 outside of protection gas nozzle
31, central symmetry of two air inlets 31 about protection gas nozzle 3, and 180 ° are differed between two air inlets 31, it can guarantee gas
The stability of stream 33.The the second installation screw thread for being fixedly connected with the water cooling mouth 4 is equipped on the outside of the protection gas nozzle 3.The water cooling
Has Packed water cooling cavity 42 between mouth 4 and the protection gas nozzle 3；To carry out water cooling.It is provided on the water cooling mouth 4 and water
The water inlet 41 and water outlet 43 that cold cavity 42 communicates, water inlet 41 and water outlet 43 are oppositely arranged；It is able to carry out recirculated water
It is cold, feeding head can be cooled down, the blocking of powder channel caused by preventing temperature excessively high even damages.
Working principle of the utility model is: laser beam exposes to 5 surface of matrix by laser cavity 11, cladding powder is by sending
Powder needle 2 is sent to laser molten pool 6, and the protective gas come out from gas passage 32 side path outside cladding powder moves, and can prevent gold
Belong to powder diverging and overflows laser molten pool 6；It is connected with recirculated cooling water in water cooling mouth 4 and is cooled down in real time to feeding head, powder feeding is prevented
It is excessively high that head stimulated radiation influences temperature.
The utility model can make cladding powder have good positioning, and improve the utilization rate of powder；And it can control coating power
Output angle, generation diverging is attached to powder feeding mouth and causes powder feeding channel blockage after avoiding powder from colliding matrix 5；It can also be to powder feeding
Head is cooled down, and the blocking of powder channel caused by preventing temperature excessively high even damages.
The coaxial powder feeding head delivering powder beam directionality of the utility model opposed annular conical cavities structure is preferable, and powder utilizes
Rate is high；The size for adjusting powder sending quantity, and replacement operation side can be changed by replacing the powder feeding needle 2 of different heart diameter models
Just, while the industrial processes compared with fine inner diameter structure can also be applied to；It is equipped with cooling structure, has preferable heat dissipation performance；
A possibility that 2 fewer parts of powder feeding needle is exposed in air, and light radiation effect is smaller, is blocked is low；Furthermore it is as stifled in occurred
Plug can quickly be solved by replacement powder feeding needle 2, and maintenance cost is low.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other related technical areas are also included in the patent protection scope of the utility model.
Claims (10)
1. a kind of pin type coaxial powder feeding head characterized by comprising main component, the powder feeding needle being arranged in main component, setting exist
Protection gas nozzle outside main component and the water cooling mouth being arranged on protection gas nozzle；Have at the main component center tapered
Laser cavity, the center line of laser cavity are overlapped with the center line of main component；On the main component around laser cavity be evenly distributed with it is more
A needle tray, needle tray run through main component upper and lower ends, and the centerline dip of needle tray is in the center line of main component；The powder feeding needle installation
On the needle tray, powder feeding needle arrival end is located in needle tray, and powder feeding needle outlet end stretches out needle tray and is located at needle tray lower end.
2. a kind of pin type coaxial powder feeding head according to claim 1, it is characterised in that: the protection gas nozzle inner sidewall and institute
State between main component lateral wall that there are gaps as gas passage, gas passage leads to the side where the powder feeding needle；It is described
Far from protecting the position of gas nozzle extension end to set, there are two the air inlet communicated with gas passage, two air inlets on the outside of protection gas nozzle
About the central symmetry of protection gas nozzle, and 180 ° are differed between two air inlets.
3. a kind of pin type coaxial powder feeding head according to claim 1 or 2, it is characterised in that: the main component lateral surface leans on
The position of nearly the upper end is equipped with stepped boss, and stepped boss is equipped with the first installation spiral shell for being fixedly connected with the protection gas nozzle
Line.
4. a kind of pin type coaxial powder feeding head according to claim 2, it is characterised in that: the protection gas nozzle is sent close to described
The plane where the main component lower end is stretched out in the end of powder needle.
5. a kind of pin type coaxial powder feeding head according to claim 1 or 2, it is characterised in that: the water cooling mouth and the guarantor
Have Packed water cooling cavity between shield gas nozzle, the inlet and outlet communicated with water cooling cavity are provided on water cooling mouth, intakes
Mouth and water outlet are oppositely arranged.
6. a kind of pin type coaxial powder feeding head according to claim 5, it is characterised in that: be equipped on the outside of the protection gas nozzle solid
Surely the second installation screw thread of the water cooling mouth is connected.
7. a kind of pin type coaxial powder feeding head according to claim 5, it is characterised in that: the needle tray center line and main component
Angle between center line is a；The lateral surface of the main component is in coniform, the folder of main component lateral surface and main component center line
Angle is b, and angle b is greater than angle a；The protection gas nozzle is the hollow body of class cone cell, protects the medial surface and protection gas nozzle of gas nozzle
The angle of center line is c, and angle c is equal with angle b.
8. a kind of pin type coaxial powder feeding head according to claim 1, it is characterised in that: stretch out needle tray on the powder feeding needle
Extension elongation is 1mm~2mm；The powder feeding needle is elongated copper pipe, and copper pipe has two sections of class holes as powder feeding channel.
9. a kind of pin type coaxial powder feeding head according to claim 8, it is characterised in that: the outer diameter of the copper pipe is 5mm, copper
Two internal diameters in Guan Shangerduan class hole are respectively 3mm and 1mm, wherein internal diameter is that the hole length of 1mm is no more than on copper pipe
10mm。
10. a kind of pin type coaxial powder feeding head according to claim 1, it is characterised in that: there are three the needle trays；The needle
Slot is cylinder empty slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820562106.4U CN208250418U (en) | 2018-04-19 | 2018-04-19 | A kind of pin type coaxial powder feeding head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820562106.4U CN208250418U (en) | 2018-04-19 | 2018-04-19 | A kind of pin type coaxial powder feeding head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208250418U true CN208250418U (en) | 2018-12-18 |
Family
ID=64637839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820562106.4U Expired - Fee Related CN208250418U (en) | 2018-04-19 | 2018-04-19 | A kind of pin type coaxial powder feeding head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208250418U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109468637A (en) * | 2019-01-08 | 2019-03-15 | 苏州大学 | Laser cladding apparatus and laser cladding forming method |
| CN110938818A (en) * | 2019-12-20 | 2020-03-31 | 西安交通大学 | Paraxial powder feeding device |
-
2018
- 2018-04-19 CN CN201820562106.4U patent/CN208250418U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109468637A (en) * | 2019-01-08 | 2019-03-15 | 苏州大学 | Laser cladding apparatus and laser cladding forming method |
| CN110938818A (en) * | 2019-12-20 | 2020-03-31 | 西安交通大学 | Paraxial powder feeding device |
| CN110938818B (en) * | 2019-12-20 | 2024-06-07 | 西安交通大学 | Paraxial powder feeding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181218 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |