CN107287590A - The light powder of laser direct forming actively adjusts coaxial powder-feeding nozzle - Google Patents
The light powder of laser direct forming actively adjusts coaxial powder-feeding nozzle Download PDFInfo
- Publication number
- CN107287590A CN107287590A CN201710680838.3A CN201710680838A CN107287590A CN 107287590 A CN107287590 A CN 107287590A CN 201710680838 A CN201710680838 A CN 201710680838A CN 107287590 A CN107287590 A CN 107287590A
- Authority
- CN
- China
- Prior art keywords
- powder
- adapter sleeve
- laser
- cam
- nozzle
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/20—Cooling means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/25—Direct deposition of metal particles, e.g. direct metal deposition [DMD] or laser engineered net shaping [LENS]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/40—Radiation means
- B22F12/44—Radiation means characterised by the configuration of the radiation means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/50—Means for feeding of material, e.g. heads
- B22F12/53—Nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/50—Means for feeding of material, e.g. heads
- B22F12/57—Metering means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/70—Gas flow means
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Laser Beam Processing (AREA)
Abstract
The light powder of laser direct forming of the present invention actively adjusts coaxial powder-feeding nozzle, is related to material increasing field, and specially a kind of light powder for Laser Direct Deposition actively adjusts nozzle.The light powder of laser direct forming, which actively adjusts coaxial powder-feeding nozzle, to be included：Laser defocusing amount governor motion, adapter sleeve and powder defocusing amount governor motion；Laser defocusing amount governor motion is loaded on the inside upper part of adapter sleeve；Outer middle side part and bottom of the powder defocusing amount governor motion loaded on adapter sleeve.There is structure novelty, simple processing, easy to use, hot spot individually to be adjusted with amyloid plaque, the features such as hot spot is matched with amyloid plaque size is realized by the present invention, therefore belong to a kind of light powder for the new pattern laser straight forming for integrating economy and practicality and actively adjust coaxial powder-feeding nozzle.
Description
Technical field
The light powder of laser direct forming of the present invention actively adjusts coaxial powder-feeding nozzle, is related to material increasing field,
Specially a kind of light powder for Laser Direct Deposition actively adjusts nozzle.
Background technology
As Aero-Space, nuclear power source, ocean engineering manufacturing industry are increasingly urgent to the demand of accurate complex partses, at present
The increases material manufacturing technology of rise with its it is flexible, efficient the characteristics of, it is fast-developing in complex partses manufacture.Existing metal laser
Increasing material manufacturing mainly has following three kinds of modes：Powdering formula, coaxial powder-feeding formula and paraxonic powder feeding formula, and coaxial powder-feeding formula with other two
Kind of mode is compared, with the advantage such as flexible, quick, forming quality is good.Laser coaxial powder feeding formula increasing material manufacturing efficiency and quality take
Certainly in the gas powder stream technological parameter such as the laser technical parameterses such as laser power, spot size and tube cell angle, amyloid plaque size.But work as
When laser spot size is more than amyloid plaque size, energy density can be caused excessive, easily produce the defects such as stomata, influence increasing material manufacturing
Part quality；When laser spot size is less than amyloid plaque size, gas powder stream can be caused can not to be completely transferred to molten bath, powder is utilized
Rate is low, reduces increasing material manufacturing efficiency.
At present, existing coaxial powder-feeding nozzle is divided into multichannel coaxial powder-feeding nozzle and conical ring formula coaxial powder-feeding nozzle, wherein
The coaxial powder-feeding nozzle (CN103060801B) that Xi'an Communications University is used to become light spot process employs the spray of conical ring coaxial powder-feeding
Mouth, can realize the regulation of laser spot size by adjusting laser defocusing amount, but the design inner flow passage is complicated, nozzle
Working off one's feeling vent one's spleen, powder stream uniformity, convergence property are poor, and gas powder stream incident angle can not be adjusted, it is impossible to adjust amyloid plaque chi according to spot size
It is very little.The patent (US7358457) of AM General company employs multichannel coaxial powder-feeding nozzle, and it protects gas structure design skilful
It is wonderful, but small-sized gradient pore processing difficulties in the design tube cell, it is impossible to tube cell incident angle is adjusted, applicability is limited.Hand in Xi'an
Logical university solves tube cell angle for the pipe coaxial powder-feeding nozzle (CN1025540371A) of Laser Direct Deposition adjustable-angle four
The problem of can not adjusting, can realize the regulation of amyloid plaque size by adjusting powder defocusing amount, but can not be according to amyloid plaque size
Spot size is adjusted, complicated, four tube cell angles can not be adjusted in synchronism.In summary, existing coaxial powder-feeding nozzle without
Method realizes the active regulation of powder defocusing amount and laser defocusing amount simultaneously, it is impossible to adapts to the requirement of part manufacturing feature, causes light
Spot size is mismatched with amyloid plaque size, causes dusty material to waste, and influences increasing material manufacturing part quality, reduces processing efficiency.Cause
This, how actively to adjust coaxial powder-feeding nozzle powder defocusing amount and laser defocusing amount is to develop coaxial powder-feeding increases material manufacturing technology urgently
Problem to be solved.
For it is above-mentioned the problems of in the prior art, a kind of light powder master of new laser direct forming of research and design
Dynamic regulation coaxial powder-feeding nozzle, so that it is the problems of in the prior art very necessary to overcome.
The content of the invention
In view of it is above-mentioned the problems of in the prior art, the purpose of the present invention is a kind of new laser straight of research and design
The light powder for being connected into type actively adjusts coaxial powder-feeding nozzle.Actively adjusted while to realize powder defocusing amount and laser defocusing amount
Section, to adapt to the requirement of part manufacturing feature, realizes matching for spot size and amyloid plaque size, saves dusty material, improve increasing
Material manufactures part quality, improves processing efficiency.
What the technical solution of the present invention was realized in：
Light powder of the present invention for laser direct forming actively adjusts coaxial powder-feeding nozzle, it is characterised in that be used for
The light powder of laser direct forming, which actively adjusts coaxial powder-feeding nozzle, to be included：Laser defocusing amount governor motion, adapter sleeve and powder from
Jiao's amount governor motion；Laser defocusing amount governor motion is loaded on adapter sleeve inside upper part；Powder defocusing amount governor motion is loaded on connection
The outer middle side part of set and bottom；
The middle inside of adapter sleeve of the present invention is machined with erecting bed, and outer middle side part is machined with land and lower ring
Platform；It is machined with upper land in through hole, lower land and is machined with mounting hole, through hole is coaxially processed with mounting hole；
Laser defocusing amount governor motion of the present invention includes：Lens, microscope base, Adjusting bolt Adjusting screw and protective glass；Adjust spiral shell
Set is connected with the screw top of adapter sleeve, and is freely rotatable；In interior land of the lens loaded on microscope base top, microscope base and regulation spiral shell
Set is connected through a screw thread, and is done vertical up-or-down movement by rotating band index glass seat and the lens of Adjusting bolt Adjusting screw, is adjusted laser defocusing amount
So as to adjust spot size；Protective glass is loaded on the erecting bed on the inside of adapter sleeve；
Powder defocusing amount governor motion of the present invention includes：Planetary gearsets, cam link mechanism, power transmission shaft, powder
Pipe, nozzle water collar；Planetary gear is assembled in adapter sleeve outer wall and upper land；Cam link mechanism is passed loaded in lower land
Planetary gearsets are connected by moving axis through the through hole in upper land with cam link mechanism, and the bottom of power transmission shaft is arranged on lower ring
In the mounting hole of platform；Planetary gearsets include：Outer gear sleeve and gear train；Outer gear sleeve is sleeved on adapter sleeve, is placed in
In land；Gear train is two gear compositions, and gear train is placed in land, and engaged with outer gear sleeve loaded on power transmission shaft；
Cam link mechanism includes：Cam, cam link and sliding block；Cam is loaded on power transmission shaft and is placed in lower land, cam link
One end be connected with cam；Sliding block is loaded on cam link.Drive gear train to rotate by rotating outer gear sleeve, pass through power transmission shaft
Make cam synchronous axial system, cam link follows cam rotation, drives tube cell to be rotated around hinge, and regulation powder defocusing amount is so as to adjust
Save amyloid plaque size；Tube cell angle and microscope base height can be adjusted individually, so as to realize laser defocusing amount and powder defocusing amount actively
Regulation, realizes the matching of spot size and amyloid plaque size；Nozzle water collar is loaded on the bottom of adapter sleeve；The bottom of tube cell passes through hinge
Chain is hinged with tube cell, and top is connected with cam link mechanism.
Tube cell and cam of the present invention are 4, are distributed on around adapter sleeve 4, and the cam anglec of rotation is 360 °, powder
The angle managed with vertical direction changes with cam rotation.
The gentle powder circulation road of outer layer protection gas passage is provided with tube cell of the present invention, each parallel to tube cell axis.
The bottom of tube cell is hinged by hinge with nozzle water collar, and top is connected with sliding block.
Nozzle water collar of the present invention is internally provided with coolant flow channel；Coolant flow channel entrance is arranged at bottom, and top has cold
But runner exit.
The material of nozzle water collar of the present invention uses copper, and the material of adapter sleeve uses stainless steel, nozzle water collar
With adapter sleeve using many material increasing material manufacturings or welding manufacture so as to ensure sealing and cooling effect.
Protection gas entrance is provided with adapter sleeve of the present invention, protective gas is led to by protection gas entrance, dust is prevented
For the influence of light path.
Scale is respectively provided with outside cam link of the present invention and outside microscope base, to accurate adjustment tube cell angle and mirror
Seat height degree.
The pass of the present invention test amyloid plaque size and the relation, spot size and microscope base height of tube cell angle before nozzle is installed
System, adjusts laser defocusing amount and powder defocusing amount, so as to realize the matching of amyloid plaque and spot size according to actual conditions.
The use process of the present invention is simple and easy to apply：
Moved by the vertical lens on the rotating band index glass seat of Adjusting bolt Adjusting screw, regulation laser defocusing amount is so as to adjust hot spot
Size；Drive gear train to rotate by rotating outer gear sleeve, cam synchronous axial system is made by power transmission shaft, cam link follows cam
Motion, drives tube cell to be rotated around hinge, and regulation powder defocusing amount is so as to adjust amyloid plaque size；Tube cell angle and microscope base are highly equal
It can individually adjust, so as to realize that laser defocusing amount and powder defocusing amount are actively adjusted, realize of spot size and amyloid plaque size
Match somebody with somebody.
Cooling water enters from cooling water inlet, and by coolant flow channel, from coolant outlet outflow, nozzle water collar is carried out
Cooling, it is ensured that nozzle works long hours.
Protect gas to be entered by protection gas entrance, prevent dust for the influence of light path；Gas is protected simultaneously from outer layer protection gas
Passage enters, and can improve gas powder stream convergence property can prevent drip molding from aoxidizing again.
It is an advantage of the invention that it will be apparent that being mainly manifested in：
1st, due to dusty material and particle size influences gas powder stream convergence property, nozzle of the present invention can be for the regulation of different powder not
Same incident angle, with strong applicability, the regulation of tube cell angle can provide rational scheme for the selection of subsequent technique parameter, pass through
Connecting rod high scale accurately adjusts tube cell angle.
2nd, the synchronous axial system of four tube cells just can be realized only by rotation outer gear sleeve, it is convenient and swift, use external tooth
Take turns the trip bolt put to fix, whole mechanism position can be made reliable and stable.
3rd, Adjusting bolt Adjusting screw is rotated, being connected through a screw thread makes lens as lens mount rises or declines, by lens mount
Scale control the height of rise and fall, this method fast stablizes, and laser defocusing amount can be adjusted at any time.
4th, after regulating lens holder height, laser defocusing amount changes in vertical direction, while adjusting powder defocusing amount, makes the two
Active regulation is carried out, is more beneficial for adjusting part manufacturing process parameter, efficiency is improved, reduces cost.
5th, the design tube cell is difficult stifled powder, and service life is long, and tube cell is easily changed, it is not necessary to change whole nozzle, and reduction is changed
Cost.
6th, tube cell design is made up of gas powder circulation road and outer layer protection gas passage, and the effect of gas powder circulation road is transport powder
Molten bath is reached, protection gas channeling is to improve gas powder stream convergence property and prevent that drip molding from aoxidizing, and improves drip molding quality.
7th, the material of nozzle water collar uses copper, and connection cover material uses stainless steel.Nozzle thermal source is mainly derived from metal
The heat radiation in powder molten bath, the absorptive rate of radiation of copper is small, and heat can be reduced to greatest extent as nozzle water cooling cover material using copper
Radiate the influence to nozzle.Stainless steel thermal conductivity factor is small, middle heat-insulated by cooling water flow conduits, thus greatly reduces thermal source to lens
And the influence of laser.
8th, using multiple material increasing material manufacturing mode, increasing material manufacturing is carried out to copper water collar and stainless steel adapter sleeve, not only
Sealed nozzle can be made more preferably, and the design of screw thread, sealing ring can be reduced with using.
9th, protection gas design is added using protective glass, protection gas prevents influence of the dust to light path, and protective glass can stop dust,
So as to protect lens to be not damaged by, increase service life.
10th, the present invention is available for metal and non-metallic laser cladding, surface alloying, the reparation of damaged part, Au Laser
Belong to the fields such as direct forming.
There is the present invention structure novelty, simple processing, easy to use, hot spot and amyloid plaque individually to adjust, realize hot spot and powder
The advantages of spot size is matched, its high-volume, which puts goods on the market, will produce positive social benefit and significant economic benefit.
Brief description of the drawings
The present invention has 3 width accompanying drawings, wherein：
Accompanying drawing 1 is the schematic diagram that light powder of the present invention actively adjusts coaxial powder-feeding nozzle.
Accompanying drawing 2 is the schematic three dimensional views that light powder of the present invention actively adjusts coaxial powder-feeding nozzle.
Accompanying drawing 3 is laser defocusing amount (hot spot), the schematic diagram of powder defocusing amount (amyloid plaque) active regulation.
In figure：1st, lens 2, microscope base 201, interior land 3, Adjusting bolt Adjusting screw 4, adapter sleeve 401, erecting bed 402, on
Land 403, lower land 5, outer gear sleeve 6, trip bolt 7, protective glass 8, gear train 9, power transmission shaft 10, cam 11,
Cam link 12, sliding block 13, protection gas entrance 14, tube cell 15, outer layer protection gas passage 16, coolant flow channel 17, gas powder
Circulation road 18, nozzle water collar 19, hinge 20, laser 21, gas powder stream 22, substrate.
Embodiment
The specific implementation of the present invention is for example shown in accompanying drawing 1,2, and the light powder for laser direct forming, which is actively adjusted, coaxially to be sent
Powder nozzle includes：Laser defocusing amount governor motion, adapter sleeve 4 and powder defocusing amount governor motion；Laser defocusing amount governor motion
Loaded on the inside upper part of adapter sleeve 4；Outer middle side part and bottom of the powder defocusing amount governor motion loaded on adapter sleeve 4；
The middle inside of adapter sleeve 4 is machined with erecting bed 401, and outer middle side part is machined with land 402 and lower land 403；
It is machined with upper land 402 in through hole, lower land 403 and is machined with mounting hole, through hole is coaxially processed with mounting hole；
Laser defocusing amount governor motion includes：Lens 1, microscope base 2, Adjusting bolt Adjusting screw 3 and protective glass 7；Adjusting bolt Adjusting screw 3 is with being connected
The screw top connection of set 4, and be freely rotatable；In interior land 201 of the lens 1 loaded on the top of microscope base 2, microscope base 2 and regulation spiral shell
Set 3 is connected through a screw thread, and vertical up-or-down movement is done by rotating band index glass seat 2 and the lens 1 of Adjusting bolt Adjusting screw 3, regulation laser from
Jiao's amount is so as to adjust spot size；On erecting bed 401 of the protective glass 7 loaded on the inner side of adapter sleeve 4；
Powder defocusing amount governor motion includes：Planetary gearsets, cam link mechanism, power transmission shaft 9, tube cell 14, nozzle water
Cold set 18；Planetary gear is assembled in the outer wall of adapter sleeve 4 and upper land 402；Cam link mechanism is passed loaded in lower land 403
Planetary gearsets are connected by moving axis 9 through the through hole in upper land 402 with cam link mechanism, and the bottom of power transmission shaft 9 is installed
In the mounting hole of lower land 403, drive gear train to rotate by rotating outer gear sleeve, cam is synchronously turned by power transmission shaft
Dynamic, cam link follows cam rotation, drives tube cell 14 to be rotated around hinge, and regulation powder defocusing amount is so as to adjust amyloid plaque size
Tube cell angle and microscope base height can be adjusted individually, so as to realize that laser defocusing amount and powder defocusing amount are actively adjusted, realize light
The matching of spot size and amyloid plaque size；Nozzle water collar 18 is loaded on the bottom of adapter sleeve 4；The bottom of tube cell 14 by hinge 19 with
Tube cell 14 is hinged, and top is connected with cam link mechanism.
Planetary gearsets include：Outer gear sleeve 5 and gear train 8；Outer gear sleeve 5 is sleeved on adapter sleeve 4, is placed in ring
On platform 402；Gear train 8 is two gear compositions, and gear train 8 is placed in land 402 loaded on power transmission shaft 9, and and external gear
Set 5 is engaged.
Cam link mechanism includes：Cam 10, cam link 11 and sliding block 12；Cam 10 is loaded on power transmission shaft 9 and is placed in
In lower land 403, one end of cam link 11 is connected with cam 10；Sliding block 12 is loaded on cam link 11.
The bottom of tube cell 14 is hinged by hinge 19 with nozzle water collar 18, and top is connected with sliding block 12.
The gentle powder circulation road 17 of outer layer protection gas passage 15 is provided with tube cell 14；Gas is protected from outer layer protection gas passage 15
Into can improve gas powder stream convergence property can prevent drip molding from aoxidizing again..
Nozzle water collar 18 is internally provided with coolant flow channel 16；Coolant flow channel entrance is arranged at bottom, and top has coolant flow channel to go out
Mouthful；Cooling water enters from cooling water inlet, and by coolant flow channel 16, from coolant outlet outflow, nozzle water collar 18 is carried out
Cooling, it is ensured that nozzle works long hours.
The material of nozzle water collar 18 uses copper, and the material of adapter sleeve 4 uses stainless steel, nozzle water collar 18 and connection
Set 4 is using many material increasing material manufacturings or welding manufacture so as to ensure sealing and cooling effect.
Tube cell 14 and cam 10 are 4, are distributed on around adapter sleeve 4, and the anglec of rotation of cam 10 is 360 °, tube cell 14 with
The angle of vertical direction changes with cam rotation.
Protection gas entrance 13 is provided with adapter sleeve 4, protective gas is led to by protection gas entrance 13, prevents dust for light path
Influence.
Scale is respectively provided with outside the outside of cam link 11 and microscope base 2, to accurate adjustment tube cell angle and microscope base height.
The relation of test amyloid plaque size and the relation, spot size and the height of microscope base 2 of the angle of tube cell 14 before nozzle, root are installed
Laser defocusing amount and powder defocusing amount are adjusted according to actual conditions, so as to realize the matching of amyloid plaque and spot size.
As shown in Fig. 3 a parts, the outlet of tube cell 14 and nozzle center's linear distance are d, are θ with nozzle centerline angle1, figure
Shown in 3b parts, lens 1 rise △ H, tube cell 14 and nozzle centerline angle theta1With the outlet of tube cell 14 and nozzle center's linear distance
D is constant, and laser defocusing amount diminishes, and the spot size that laser 20 reaches substrate 22 is less than the amyloid plaque chi that gas powder stream 21 reaches substrate 22
It is very little, it is necessary to which tube cell 14 and nozzle centerline angle are changed into θ2, powder defocusing amount is adjusted, while substrate 22 is adjusted up △ h,
As shown in Fig. 3 c parts, laser defocusing amount and powder defocusing amount are actively adjusted, so as to realize of spot size and amyloid plaque size
Match somebody with somebody.
It is described above, it is only the preferably embodiment of the present invention, but protection scope of the present invention is not limited to
This, all those familiar with the art are in technical scope disclosed by the invention, technique according to the invention scheme
And its design of the present invention is subject to equivalent substitution or changed to be included within the scope of the present invention.
Claims (10)
1. a kind of light powder for laser direct forming actively adjusts coaxial powder-feeding nozzle, it is characterised in that be connected into for laser straight
The light powder of type, which actively adjusts coaxial powder-feeding nozzle, to be included：Laser defocusing amount governor motion, adapter sleeve (4) and the regulation of powder defocusing amount
Mechanism；Laser defocusing amount governor motion is loaded on adapter sleeve (4) inside upper part；Powder defocusing amount governor motion is loaded on adapter sleeve (4)
Outer middle side part and bottom；
The middle inside of described adapter sleeve (4) is machined with erecting bed (401), outer middle side part be machined with land (402) and under
Land (403)；It is machined with upper land (402) on through hole, lower land (403) and is machined with mounting hole, through hole is coaxial with mounting hole
Processing；
Described laser defocusing amount governor motion includes：Lens (1), microscope base (2), Adjusting bolt Adjusting screw (3) and protective glass (7)；Regulation
Swivel nut (3) is connected with the screw top of adapter sleeve (4), and is freely rotatable；Lens (1) are loaded on the interior land on microscope base (2) top
(201) on, microscope base (2) is connected through a screw thread with Adjusting bolt Adjusting screw (3), by the rotating band index glass seat (2) of Adjusting bolt Adjusting screw (3) with thoroughly
Mirror (1) does vertical up-or-down movement；Protective glass (7) is loaded on the erecting bed (401) on the inside of adapter sleeve (4)；
Described powder defocusing amount governor motion includes：Planetary gearsets, cam link mechanism, power transmission shaft (9), tube cell (14),
Nozzle water collar (18)；Planetary gear is assembled in adapter sleeve (4) outer wall and upper land (402)；Cam link mechanism is loaded on down
In land (403), planetary gearsets are connected by power transmission shaft (9) through the through hole in upper land (402) with cam link mechanism,
The bottom of power transmission shaft (9) is arranged in the mounting hole of lower land (403)；Nozzle water collar (18) is loaded on the bottom of adapter sleeve (4)；
The bottom of tube cell (14) is hinged by hinge (19) with tube cell (14), and top is connected with cam link mechanism.
2. the light powder according to claim 1 for laser direct forming actively adjusts coaxial powder-feeding nozzle, its feature exists
Include in described planetary gearsets：Outer gear sleeve (5) and gear train (8)；Outer gear sleeve (5) is sleeved on adapter sleeve (4), and
It is placed in land (402)；Gear train (8) is two gear compositions, and gear train (8) is placed in land loaded on power transmission shaft (9)
(402) on, and engaged with outer gear sleeve (5).
3. the light powder according to claim 1 for laser direct forming actively adjusts coaxial powder-feeding nozzle, its feature exists
Include in described cam link mechanism：Cam (10), cam link (11) and sliding block (12)；Cam (10) is loaded on power transmission shaft
(9) it is placed in lower land (403), one end of cam link (11) is connected with cam (10)；Sliding block (12) connects loaded on cam
On bar (11).
4. the light powder according to claim 1 for laser direct forming actively adjusts coaxial powder-feeding nozzle, its feature exists
It is hinged in the bottom of described tube cell (14) by hinge (19) with nozzle water collar (18), top is connected with sliding block (12).
5. the light powder according to claim 4 for laser direct forming actively adjusts coaxial powder-feeding nozzle, its feature exists
In being provided with the gentle powder circulation road (17) of outer layer protection gas passage (15) on described tube cell (14), each parallel to tube cell (14) axle
Line.
6. the light powder according to claim 1 for laser direct forming actively adjusts coaxial powder-feeding nozzle, its feature exists
Coolant flow channel (16) is internally provided with described nozzle water collar (18)；Coolant flow channel entrance is arranged at bottom, and top has cooling to flow
Road is exported.
7. the light powder according to claim 1 for laser direct forming actively adjusts coaxial powder-feeding nozzle, its feature exists
Use copper in the material of described nozzle water collar (18), the material of adapter sleeve (4) uses stainless steel, nozzle water collar (18) and
Adapter sleeve (4) is using many material increasing material manufacturings or welding manufacture so as to ensure sealing and cooling effect.
8. the light powder according to claim 5 for laser direct forming actively adjusts coaxial powder-feeding nozzle, its feature exists
It is 4 in described tube cell (14) and cam (10), is distributed on around adapter sleeve (4), cam (10) anglec of rotation is 360 °,
Tube cell (14) and the angle of vertical direction change with cam rotation.
9. the light powder according to claim 7 for laser direct forming actively adjusts coaxial powder-feeding nozzle, its feature exists
In being provided with protection gas entrance (13) on described adapter sleeve (4), protective gas is led to by protection gas entrance (13), dust pair is prevented
In the influence of light path.
10. the light powder according to claim 3 for laser direct forming actively adjusts coaxial powder-feeding nozzle, its feature exists
Scale is respectively provided with outside described cam link (11) outside and microscope base (2), it is high to accurate adjustment tube cell angle and microscope base
Degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710680838.3A CN107287590B (en) | 2017-08-10 | 2017-08-10 | The light powder of laser direct forming actively adjusts coaxial powder-feeding nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710680838.3A CN107287590B (en) | 2017-08-10 | 2017-08-10 | The light powder of laser direct forming actively adjusts coaxial powder-feeding nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107287590A true CN107287590A (en) | 2017-10-24 |
| CN107287590B CN107287590B (en) | 2019-05-21 |
Family
ID=60105695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710680838.3A Active CN107287590B (en) | 2017-08-10 | 2017-08-10 | The light powder of laser direct forming actively adjusts coaxial powder-feeding nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107287590B (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108127118A (en) * | 2018-01-19 | 2018-06-08 | 浙江万丰科技开发股份有限公司 | A kind of metal powder laser 3D printing nozzle |
| CN108500271A (en) * | 2018-05-17 | 2018-09-07 | 中国兵器装备研究院 | A kind of split type print head for coaxial powder-feeding increasing material manufacturing |
| CN108607993A (en) * | 2018-07-24 | 2018-10-02 | 浙江工业大学 | A kind of flux powder formula dust feeder for laser gain material manufacture |
| CN109226764A (en) * | 2018-11-19 | 2019-01-18 | 大连理工大学 | A kind of gear reparation dedicated laser feeding head of anti-interference |
| CN109290576A (en) * | 2018-10-30 | 2019-02-01 | 浙江工贸职业技术学院 | A kind of metal 3D printing device |
| CN109604594A (en) * | 2018-12-11 | 2019-04-12 | 西安航天发动机有限公司 | A kind of shell class casting laser repairing coaxial powder feeding head device |
| CN111001809A (en) * | 2020-01-07 | 2020-04-14 | 首都航天机械有限公司 | Optical powder tight coupling self-coordination coaxial powder feeding laser additive machining head |
| CN111036900A (en) * | 2019-12-06 | 2020-04-21 | 西安铂力特增材技术股份有限公司 | Defocusing amount measurement control system and method for powder feeding type laser additive manufacturing equipment |
| CN112004657A (en) * | 2018-02-01 | 2020-11-27 | 瑞典焕贝自动化有限公司 | Method and apparatus for depositing and bonding powder materials |
| CN112139502A (en) * | 2020-10-23 | 2020-12-29 | 南京航空航天大学 | Inner wall additive manufacturing coaxial powder feeding nozzle with self-cleaning function |
| CN113290257A (en) * | 2021-05-31 | 2021-08-24 | 南京中科煜宸激光技术有限公司 | System and method for synchronously and regionally feeding powder to laser cladding dissimilar materials with same light spot |
| CN113547744A (en) * | 2021-07-20 | 2021-10-26 | 南昌航空大学 | Split type directional energy deposition powder feeding spray head |
| CN115284408A (en) * | 2022-06-30 | 2022-11-04 | 中国空间技术研究院 | Lunar soil electrostatic coaxial powder feeding device and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4724299A (en) * | 1987-04-15 | 1988-02-09 | Quantum Laser Corporation | Laser spray nozzle and method |
| CN1255411A (en) * | 2000-01-07 | 2000-06-07 | 清华大学 | Split-type coaxial powder-feeding nozzle for laser fusion and coating |
| CN101264519A (en) * | 2008-04-08 | 2008-09-17 | 西安交通大学 | Adjustable laser coaxial powder feeding nozzle |
| CN102554471A (en) * | 2011-12-13 | 2012-07-11 | 西安交通大学 | Angle-adjustable four-pipe powder feeding nozzle for laser direct forming |
| CN104694923A (en) * | 2015-03-30 | 2015-06-10 | 湖南大学 | Four-tube type coaxial powder feeding nozzle with adjustable convergence focal length |
-
2017
- 2017-08-10 CN CN201710680838.3A patent/CN107287590B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4724299A (en) * | 1987-04-15 | 1988-02-09 | Quantum Laser Corporation | Laser spray nozzle and method |
| CN1255411A (en) * | 2000-01-07 | 2000-06-07 | 清华大学 | Split-type coaxial powder-feeding nozzle for laser fusion and coating |
| CN101264519A (en) * | 2008-04-08 | 2008-09-17 | 西安交通大学 | Adjustable laser coaxial powder feeding nozzle |
| CN102554471A (en) * | 2011-12-13 | 2012-07-11 | 西安交通大学 | Angle-adjustable four-pipe powder feeding nozzle for laser direct forming |
| CN104694923A (en) * | 2015-03-30 | 2015-06-10 | 湖南大学 | Four-tube type coaxial powder feeding nozzle with adjustable convergence focal length |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108127118A (en) * | 2018-01-19 | 2018-06-08 | 浙江万丰科技开发股份有限公司 | A kind of metal powder laser 3D printing nozzle |
| CN112004657A (en) * | 2018-02-01 | 2020-11-27 | 瑞典焕贝自动化有限公司 | Method and apparatus for depositing and bonding powder materials |
| CN108500271A (en) * | 2018-05-17 | 2018-09-07 | 中国兵器装备研究院 | A kind of split type print head for coaxial powder-feeding increasing material manufacturing |
| CN108607993A (en) * | 2018-07-24 | 2018-10-02 | 浙江工业大学 | A kind of flux powder formula dust feeder for laser gain material manufacture |
| CN108607993B (en) * | 2018-07-24 | 2023-10-20 | 浙江工业大学 | Magnetic beam powder type powder feeding device for laser additive manufacturing |
| CN109290576A (en) * | 2018-10-30 | 2019-02-01 | 浙江工贸职业技术学院 | A kind of metal 3D printing device |
| CN109226764A (en) * | 2018-11-19 | 2019-01-18 | 大连理工大学 | A kind of gear reparation dedicated laser feeding head of anti-interference |
| CN109226764B (en) * | 2018-11-19 | 2020-01-24 | 大连理工大学 | Special laser powder feeding head for preventing interference in gear repair |
| CN109604594B (en) * | 2018-12-11 | 2021-05-18 | 西安航天发动机有限公司 | Coaxial powder feeding head device for laser repair of shell castings |
| CN109604594A (en) * | 2018-12-11 | 2019-04-12 | 西安航天发动机有限公司 | A kind of shell class casting laser repairing coaxial powder feeding head device |
| CN111036900A (en) * | 2019-12-06 | 2020-04-21 | 西安铂力特增材技术股份有限公司 | Defocusing amount measurement control system and method for powder feeding type laser additive manufacturing equipment |
| CN111001809A (en) * | 2020-01-07 | 2020-04-14 | 首都航天机械有限公司 | Optical powder tight coupling self-coordination coaxial powder feeding laser additive machining head |
| CN112139502A (en) * | 2020-10-23 | 2020-12-29 | 南京航空航天大学 | Inner wall additive manufacturing coaxial powder feeding nozzle with self-cleaning function |
| CN113290257A (en) * | 2021-05-31 | 2021-08-24 | 南京中科煜宸激光技术有限公司 | System and method for synchronously and regionally feeding powder to laser cladding dissimilar materials with same light spot |
| CN113290257B (en) * | 2021-05-31 | 2022-11-29 | 南京中科煜宸激光技术有限公司 | Method for synchronously and regionally feeding powder and cladding dissimilar materials with same light spot |
| CN113547744A (en) * | 2021-07-20 | 2021-10-26 | 南昌航空大学 | Split type directional energy deposition powder feeding spray head |
| CN115284408A (en) * | 2022-06-30 | 2022-11-04 | 中国空间技术研究院 | Lunar soil electrostatic coaxial powder feeding device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107287590B (en) | 2019-05-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107287590A (en) | The light powder of laser direct forming actively adjusts coaxial powder-feeding nozzle | |
| CN101264519B (en) | Adjustable laser coaxial powder feeding nozzle | |
| CN201823642U (en) | Laser cladding coaxial powder delivery nozzle comprising guide protective air flow | |
| CN107245715B (en) | A kind of built-in sieve mesh type loop laser melting-painting nozzle | |
| CN2510502Y (en) | Laser coating coaxial powder-delivery nozzle | |
| CN101138755A (en) | Split type coaxial powder-feeding nozzle for laser fusion and coating | |
| CN201128758Y (en) | Feeding axis-adjustable power-feeding head for laser cladding | |
| CN1112276C (en) | Split-type coaxial powder-feeding nozzle for laser fusion and coating | |
| CN110587139A (en) | Coaxial wire and powder feeding printing nozzle and additive manufacturing device for arc laser | |
| CN104611696A (en) | Laser-cladding nozzle | |
| CN201329320Y (en) | Coaxial powder-feeding nozzle with water cooling and guided air protection | |
| CN1271236C (en) | Built-in type jet nozzle for laser melting and coating | |
| CN107303607A (en) | A kind of powder feeding formula laser 3D printing optical fiber feeding head | |
| CN110280763A (en) | Coaxial powder-feeding laser sintering device | |
| CN102061467A (en) | Adjustable laser coaxial powder-feeding nozzle | |
| CN202297780U (en) | Inside-beam coaxial powder feeding device for laser cladding | |
| CN112281159A (en) | High-speed laser inner hole cladding gun | |
| KR100341489B1 (en) | Powder feeding apparatus for the laser-surface modification and laser direct material manufacturing systems | |
| CN213652651U (en) | High-speed laser cladding machine tool | |
| CN201834970U (en) | Adjustable laser-cladding coaxial powder-feeding nozzle | |
| CN209468500U (en) | A kind of laser melting coating head | |
| CN107457484A (en) | Adjustable wire tray structure and wire-feed motor and laser cladding device | |
| CN107199340B (en) | Metal powder forming device head | |
| CN214142541U (en) | Nozzle with inner powder guide ring structure for laser cladding | |
| CN207143334U (en) | Laser cladding apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |