CN206359613U - A kind of laser melting coating head - Google Patents
A kind of laser melting coating head Download PDFInfo
- Publication number
- CN206359613U CN206359613U CN201621216342.8U CN201621216342U CN206359613U CN 206359613 U CN206359613 U CN 206359613U CN 201621216342 U CN201621216342 U CN 201621216342U CN 206359613 U CN206359613 U CN 206359613U
- Authority
- CN
- China
- Prior art keywords
- gas
- gas circuit
- bellmouth
- air
- powder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Abstract
The utility model discloses a kind of laser melting coating head, it is vented gas circuit and compressed air gas circuit is respectively provided with gas flowmeter, by adjusting the exhaust velocity of gas extraction system and the pressure of compressed air, the gas flow for showing two gas flowmeters is equal, the lens protection gas circuit being made up of compressed air gas circuit and exhaust gas circuit can be ensured without interference with the air flow condition outside processing head, so as to ensure in laser melting coating, the mixed airflow by protective gas and powder constituent of cladding mouth ejection is as few as possible to be influenceed by lens protection gas circuit, improve the quality of laser melting coating；Other annular retaining ring endoporus designs for bellmouth, can prevent the disturbance of cladding head lower chamber air-flow, so as to further prevent the air-flow of lens protection gas circuit from interfering the mixed airflow of protective gas and powder constituent, improves Laser Cladding Quality.
Description
Technical field
The utility model is related to special process field, more particularly to a kind of laser melting coating head.
Background technology
Laser melting coating can obtain one layer of protective layer with particular characteristic in surface of workpiece, increase substantially workpiece
Anti-wear performance, corrosion resistance, hydrogen embrittlement can etc., the service life of key components and parts can be increased substantially.Laser melting coating
Coaxial powder-feeding mode is generally used, the automatic powder feeding system is flexible, laser melting coating can be carried out to the parts with complex surface.
When laser action of the powder by high power density, plasma, the mixture meeting of plasma and attritive powder can be produced
Moved with high speed to eyeglass direction, cause the pollution of focus lamp, the focus lamp after pollution is continued through after laser action,
The ablation of eyeglass can be caused to damage.Generally, protection eyeglass can be placed again below focus lamp to prevent the ablation of focus lamp, so
And, protection eyeglass equally understands ablative degradation, and Chinese patent " is used for the Coaxial nozzle (application number of laser melting coating
201210293222.8) " propose it is a kind of gas circuit is protected to prevent from protecting the pollution of eyeglass, however, during using this kind of structure, by
The protective gas that gas atmosphere inlet sprays can not be well from the other end discharge of protection gas circuit, wherein having greatly
It can be sprayed from processing mouth, so as to disturb coaxial powder-feeding air-flow, cause the unstable of powder feeding and influence cladding effect.
The content of the invention
The utility model purpose is：A kind of laser melting coating head is provided, protected with weight feed protective gas and quantitative discharge
The mode of gas is protected, ensure that protection air-flow without interference with powder feeding air-flow to the full extent, it is ensured that the stabilization of laser melting coating
Property.
A kind of technical scheme of the present utility model is：A kind of laser melting coating head, including exhaust gas circuit, sleeve, focus lamp, guarantor
Goggle, processing head, compressed air gas circuit, gas center, mixed powder gas circuit, signal transmission system and industrial computer, the focus lamp, guarantor
Goggle and processing head are sequentially arranged in sleeve from top to bottom, and the processing head center offers the centre gangway run through up and down,
The side wall of the processing head offers the air nozzle hole being connected respectively with centre gangway, bellmouth and multiple powder channels, in
Entreat passage to be provided with annular retaining ring below the bellmouth, the bottom of processing head be provided with cladding mouth, the air nozzle hole be provided with
Cooperation valve, above-mentioned compressed air gas circuit is connected between the valve and above-mentioned gas center, and in compressed air gas circuit
The first air valve and first gas flowmeter are sequentially installed with along gas center to the direction of valve；Above-mentioned mixed powder gas circuit is connected with upper
State between powder channel and above-mentioned gas center, and mixed powder gas circuit is sequentially installed with the along gas center to the direction of powder channel
Three air valves and meal mixer；Above-mentioned exhaust gas circuit is connected with bellmouth, and exhaust gas circuit is pacified successively along bellmouth outwardly direction
Equipped with the second air valve, second gas flowmeter and gas extraction system, above-mentioned gas extraction system, second gas flowmeter, the second air valve,
One gas flowmeter, the first air valve, gas center, meal mixer and the 3rd air valve are connected by signal transmission system with industrial computer.
Further, the axis of the air nozzle hole is overlapped with the axis of bellmouth, diameter and the bellmouth outer wall of air nozzle hole
The diameter in portion is equal, and the diameter of bellmouth inner wall part is 3~5 times of bellmouth outside wall portions diameter.It can so ensure that valve sprays
After the compressed air diverging gone out, bellmouth inner wall hole is just flow to, so as to be discharged well by exhaust gas circuit.
Further, the endoporus of the annular retaining ring is the bellmouth of aperture upper big, lower small, can be prevented under cladding head
The disturbance of cavity air-flow, so as to further prevent the air-flow of lens protection gas circuit from interfering the gaseous mixture of protective gas and powder constituent
Stream, improves Laser Cladding Quality.
Further, the centre gangway below the first cavity and is connected including the first cavity and with the first cavity
The second logical chamber, first cavity is cylinder, and second chamber is in infundibulate, and the bottom bore of the first cavity is equal to the
The top bore of two chambers.Between the wall of multiple centrally located passages of powder channel and the outer wall of processing head, and around first chamber
The central shaft of body is uniformly distributed, and each powder channel is obliquely installed from the outer wall of processing head to the outer wall of centre gangway from top to bottom,
And the angle of inclination of each powder channel is identical.The danger that powder is washed into centre gangway and caused so is effectively prevented,
Powder flow field symmetrically is formed simultaneously.
In use, after center of the laser beam just to focus lamp, laser beam transparent focus lamp and protective glass, through processing head
The endoporus of centre gangway and its annular back-up ring, and mixed with the powder ejected from powder channel, it is then passed through the arrival of cladding mouth
Treat the workpiece surface of cladding.
The utility model has the advantages that：
In the way of 1. the utility model discharges protective gas by weight feed protective gas and quantitatively, to the full extent
It ensure that protection air-flow without interference with powder feeding air-flow, it is ensured that the stability of laser melting coating.
2. the axis of air nozzle hole is overlapped with the axis of bellmouth in the utility model, diameter and the bellmouth outer wall of air nozzle hole
The diameter in hole is equal, while the diameter of bellmouth inner wall hole is 3~5 times of bellmouth outer wall bore dia, it is ensured that valve sprays
After the compressed air diverging gone out, bellmouth inner wall hole is just flow to, so as to be discharged well by exhaust gas circuit.
3. it is vented gas circuit in the utility model and compressed air gas circuit is respectively provided with gas flowmeter, by adjusts gas extraction system
Exhaust velocity and compressed air pressure, the gas flow for showing two gas flowmeters is equal, it is ensured that by compressing
Air gas circuit and the lens protection gas circuit of exhaust gas circuit composition are without interference with the air flow condition outside processing head, so as to ensure
In laser melting coating, the mixed airflow by protective gas and powder constituent that cladding mouth sprays is as few by lens protection as possible
The influence of gas circuit, improves the quality of laser melting coating.
4. the endoporus of annular retaining ring is bellmouth in the utility model, the disturbance of cladding head lower chamber air-flow can be prevented,
So as to further prevent the air-flow of lens protection gas circuit from interfering the mixed airflow of protective gas and powder constituent, laser melting coating is improved
Quality.
Brief description of the drawings
Below in conjunction with the accompanying drawings and embodiment is further described to the utility model：
Fig. 1 is structural representation in the utility model；
Fig. 2 is the structural representation of processing head in the utility model；
Fig. 3 is the structural representation of annular retaining ring in the utility model.
Wherein：1 gas extraction system；2 second gas flowmeters；3 second air valves；4 exhaust gas circuits；5 sleeves；6 laser beams；7 gather
Jiao Jing；8 protective glasses；9 processing heads；91 air nozzle holes；92 bellmouths；93 powder channels；94 bellmouth outside wall portions；95 bellmouth inwalls
Portion；96 centre gangways；97 first cavitys；98 second cavitys；10 valves；11 first gas flowmeters；12 first air valves；13 compressions
Air gas circuit；14 gas centers；15 annular retaining rings；151 endoporus；16 cladding mouths；17 workpiece；18 meal mixers；19 air valves；20 mixed powder
Gas circuit；21 signal transmission systems；22 industrial computers.
Embodiment
Embodiment：As shown in figure 1, a kind of laser melting coating head, including exhaust gas circuit 4, sleeve 5, focus lamp 7, protective glass 8,
Processing head 9, compressed air gas circuit 13, gas center 14, mixed powder gas circuit 20, signal transmission system 21 and industrial computer 22, it is described poly-
Burnt mirror 7, protective glass 8 and processing head 9 are sequentially arranged in sleeve 5 from top to bottom, and the center of processing head 9 is offered to be run through up and down
Centre gangway 96, the side wall of the processing head 9 offers the air nozzle hole 91, the bellmouth that are connected respectively with centre gangway 96
92 and multiple powder channels 93, centre gangway 96 is provided with annular retaining ring 15 in the lower section of bellmouth 92, and the bottom of processing head 9 is installed
Have and matched valve 10 is provided with cladding mouth 16, the air nozzle hole 91, above-mentioned compressed air gas circuit 13 is connected with the valve
Between 10 and above-mentioned gas center 14, and in compressed air gas circuit 13 first is sequentially installed with along gas center to the direction of valve
Air valve 12 and first gas flowmeter 11；Above-mentioned mixed powder gas circuit 20 be connected with above-mentioned powder channel 93 and above-mentioned gas center 14 it
Between, and mixed powder gas circuit 20 is sequentially installed with the 3rd air valve 19 and meal mixer 18 along the direction of gas center to powder channel 93；On
Exhaust gas circuit 4 is stated to be connected with bellmouth 92, and exhaust gas circuit 4 is sequentially installed with the second air valve along the outwardly direction of bellmouth 92
3rd, second gas flowmeter 2 and gas extraction system 1, above-mentioned gas extraction system 1, second gas flowmeter 2, the second air valve 3, first gas
Flowmeter 11, the first air valve 12, gas center 14, the air valve 19 of meal mixer 18 and the 3rd pass through signal transmission system 21 and industrial computer
22 are connected.
In the present embodiment, the axis of the air nozzle hole 91 is overlapped with the axis of bellmouth 92, the diameter and cone of air nozzle hole 91
The diameter of shape hole outside wall portions 94 is equal, and the diameter of bellmouth inner wall part 95 is 3~5 times of the diameter of bellmouth outside wall portions 94.So
It can ensure after the compressed air diverging that valve sprays, bellmouth inner wall hole just be flow to, so that good by exhaust gas circuit
Discharge.
In the present embodiment, the endoporus 151 of the annular retaining ring 15 is the bellmouth of aperture upper big, lower small, can prevent from melting
A disturbance for lower chamber air-flow is covered, so as to further prevent the air-flow of lens protection gas circuit from interfering protective gas and powder constituent
Mixed airflow, improves Laser Cladding Quality.
In the present embodiment, the centre gangway 96 include the first cavity 97 and positioned at the lower section of the first cavity 97 and with the first chamber
The second chamber 98 that body 97 is connected, first cavity 97 is cylinder, and second chamber 98 is in infundibulate, and the first cavity 97
Bottom bore be equal to the second chamber 98 top bore.The wall of multiple centrally located passages 96 of powder channel 93 and processing head 9
Between outer wall, and it is uniformly distributed around the central shaft of first cavity 97, each powder channel 93 is from top to bottom from the outer of processing head 9
The outer wall of wall to centre gangway 96 is obliquely installed, and the angle of inclination of each powder channel 93 is identical.So it is effectively prevented powder
The danger that end is washed into centre gangway and caused, while forming powder flow field symmetrically.
Specific implementation process of the present utility model is：The 3rd air valve 19 is opened using industrial computer, so as to connect mixed powder gas circuit
20；The second air valve 3 is opened, so as to connect exhaust gas circuit 4；The first air valve 12 is opened, so as to connect compressed air gas circuit 13；Control
Industrial computer 22 provides compressed air to compressed air gas circuit 13, while start gas extraction system 1, regulation supply gas pressure and gas extraction system
1 exhaust power, makes gas flowmeter 4 equal with the gas flow that gas flowmeter 11 is shown；Industrial computer 22 is controlled to mixed powder
Gas circuit 23 provides protective gas, and makes meal mixer 18 in running order.Laser is opened, laser beam 6 is just in focus lamp 7
The heart, after laser beam 6 is through focus lamp 7 and protective glass 8, through the centre gangway and its endoporus of annular back-up ring 15 of processing head 9
151, and mixed with the powder ejected from powder channel, it is then passed through cladding mouth 16 and reaches the surface of workpiece 17 for treating cladding.
The utility model is by compressed air gas circuit 13, exhaust gas circuit 4 and offers the annular retaining ring 15 of bellmouth and constitutes
Anti-splash Lens protection system, eyeglass can be protected to the full extent, interference in air flow powder feeding air-flow is prevented, it is ensured that laser
The stability of cladding.In addition, after using laser melting coating head of the present utility model, the service life of focus lamp and protection eyeglass is obtained
Increase substantially.
The utility model can be used for coaxial powder-feeding laser melting coating system, can be used for laser 3D printing.Described laser
Beam 6 can be optical-fiber laser, CO2 laser or YAG laser.
It the above is only concrete application example of the present utility model, any limit do not constituted to protection domain of the present utility model
System.In addition to the implementation, the utility model can also have other embodiment.All use equivalent substitutions or equivalent transformation are formed
Technical scheme, all fall within the utility model it is claimed within the scope of.
Claims (5)
1. a kind of laser melting coating head, it is characterised in that：Including exhaust gas circuit (4), sleeve (5), focus lamp (7), protective glass (8),
Processing head (9), compressed air gas circuit (13), gas center (14), mixed powder gas circuit (20), signal transmission system (21) and industrial computer
(22), the focus lamp (7), protective glass (8) and processing head (9) are sequentially arranged in sleeve (5) from top to bottom, the processing head
(9) center offers the centre gangway (96) run through up and down, the side wall of the processing head (9) offer respectively with centre gangway
(96) air nozzle hole (91), bellmouth (92) and the multiple powder channels (93) being connected, centre gangway (96) is in bellmouth
(92) lower section is provided with annular retaining ring (15), and the bottom of processing head (9) is provided with cladding mouth (16), and air nozzle hole (91) place is set
Have a matched valve (10), above-mentioned compressed air gas circuit (13) be connected with the valve (10) and above-mentioned gas center (14) it
Between, and it is sequentially installed with the first air valve (12) and first gas along gas center to the direction of valve in compressed air gas circuit (13)
Flowmeter (11)；Above-mentioned mixed powder gas circuit (20) is connected between above-mentioned powder channel (93) and above-mentioned gas center (14), and mixed
Direction of the powder gas circuit (20) along gas center to powder channel (93) is sequentially installed with the 3rd air valve (19) and meal mixer (18)；On
State exhaust gas circuit (4) to be connected with bellmouth (92) place, and be vented gas circuit (4) and be sequentially installed with along bellmouth (92) outwardly direction
Second air valve (3), second gas flowmeter (2) and gas extraction system (1), above-mentioned gas extraction system (1), second gas flowmeter (2),
Second air valve (3), first gas flowmeter (11), the first air valve (12), gas center (14), meal mixer (18) and the 3rd air valve
(19) it is connected by signal transmission system (21) with industrial computer (22).
2. a kind of laser melting coating head according to claim 1, it is characterised in that：The axis of the air nozzle hole (91) and taper
The axis in hole (92) is overlapped, and the diameter of air nozzle hole (91) is equal with the diameter of bellmouth outside wall portions (94), bellmouth inner wall part
(95) diameter is 3~5 times of bellmouth outside wall portions (94) diameter.
3. a kind of laser melting coating head according to claim 1, it is characterised in that：The endoporus of the annular retaining ring (15)
(151) it is the bellmouth of aperture upper big, lower small.
4. a kind of laser melting coating head according to claim 1 or 2 or 3, it is characterised in that：The centre gangway (96) includes
First cavity (97) and the second chamber (98) being connected below the first cavity (97) and with the first cavity (97), described first
Cavity (97) is cylinder, and second chamber (98) is in infundibulate, and the bottom bore of the first cavity (97) is equal to the second chamber
(98) top bore.
5. a kind of laser melting coating head according to claim 4, it is characterised in that：Multiple powder channels (93) are centrally located logical
Between the wall in road (96) and the outer wall of processing head (9), and it is uniformly distributed around the central shaft of first cavity (97), each powder leads to
Road (93) is obliquely installed from the outer wall of processing head (9) to the outer wall of centre gangway (96) from top to bottom, and each powder channel (93)
Angle of inclination it is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621216342.8U CN206359613U (en) | 2016-11-11 | 2016-11-11 | A kind of laser melting coating head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621216342.8U CN206359613U (en) | 2016-11-11 | 2016-11-11 | A kind of laser melting coating head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206359613U true CN206359613U (en) | 2017-07-28 |
Family
ID=59371640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621216342.8U Withdrawn - After Issue CN206359613U (en) | 2016-11-11 | 2016-11-11 | A kind of laser melting coating head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206359613U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106283044A (en) * | 2016-11-11 | 2017-01-04 | 盐城工学院 | A kind of laser melting coating head |
-
2016
- 2016-11-11 CN CN201621216342.8U patent/CN206359613U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106283044A (en) * | 2016-11-11 | 2017-01-04 | 盐城工学院 | A kind of laser melting coating head |
| CN106283044B (en) * | 2016-11-11 | 2018-07-10 | 盐城工学院 | A kind of laser melting coating head |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0650766B1 (en) | Suction feed nozzle assembly for HVLP spray gun | |
| US9168545B2 (en) | Spray nozzle assembly with impingement post-diffuser | |
| CN101080255B (en) | Method for spraying medium and nuzzle | |
| EP0575669B1 (en) | Atomizers and nozzle inserts therefor | |
| CN108367304A (en) | The full cone spray nozzle assemblies of forced air auxiliary | |
| CN102554427A (en) | Method and plasma arc torch system for marking and cutting workpieces with the same set of consumables | |
| CN104540597A (en) | Full cone air-assisted spray nozzle assembly | |
| CN206359613U (en) | A kind of laser melting coating head | |
| CN204320532U (en) | A kind of miniature liquid atomizer | |
| KR20140112416A (en) | Blasting gun for wet blast | |
| CN108480652A (en) | It is a kind of to prepare spherical metal powder high efficiency annular distance gas atomizing nozzle | |
| CN103526199B (en) | A kind of laser powder processing paraxonic powder feeding operation head | |
| CN110424011B (en) | Laser cladding powder feeding device | |
| CN108906367A (en) | A kind of chemical industry desulfurizing atomization nozzle | |
| CN102601504A (en) | Welding torch with function of delivering double layers of airflow | |
| CN106283044B (en) | A kind of laser melting coating head | |
| CN102828178B (en) | Coaxial nozzle for laser cladding | |
| CN109569909A (en) | Helmet paint nozzle | |
| CN112427782B (en) | Gas shielded welding gun for consumable electrode | |
| CN212120422U (en) | Nitrogen nozzle and air nozzle assembly for laser nitriding treatment | |
| TWI678272B (en) | Multi-layer manufacturing window module | |
| CN104692615A (en) | Debubbling spray gun for total oxygen kiln | |
| CN211273287U (en) | Atomizing nozzle for fire-fighting water mist | |
| CN209475457U (en) | A kind of unmanned plane giant shower nozzle | |
| CN208246608U (en) | A kind of flat blast nozzle device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170728 Effective date of abandoning: 20180710 |