CN106392314B - Laser melting coating feed device - Google Patents
Laser melting coating feed device Download PDFInfo
- Publication number
- CN106392314B CN106392314B CN201610937029.1A CN201610937029A CN106392314B CN 106392314 B CN106392314 B CN 106392314B CN 201610937029 A CN201610937029 A CN 201610937029A CN 106392314 B CN106392314 B CN 106392314B
- Authority
- CN
- China
- Prior art keywords
- nozzle
- focus
- light
- protective gas
- cooling
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/067—Dividing the beam into multiple beams, e.g. multifocusing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
- B23K26/0643—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising mirrors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
- B23K26/1462—Nozzles; Features related to nozzles
- B23K26/1464—Supply to, or discharge from, nozzles of media, e.g. gas, powder, wire
- B23K26/1476—Features inside the nozzle for feeding the fluid stream through the nozzle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/34—Laser welding for purposes other than joining
- B23K26/342—Build-up welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
- B23K26/703—Cooling arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
- B23K26/704—Beam dispersers, e.g. beam wells
Abstract
The present invention relates to a kind of laser melting coating feed devices, belong to field of laser processing, the laser melting coating feed device receives incident beam and incident beam is converted into focus on light beam to form focus on base material, laser melting coating feed device includes supporting rack, it is arranged on the spectroscope on supporting rack and reflects focus lamp and the nozzle below reflection focus lamp, incident beam is divided at least two beam the reflected beams by spectroscope, at least two beam the reflected beams are focused at least two beam focus on light beam by reflecting focus lamp again, at least two beam focus on light beam form hollow no light zone and focus, it is formed in laser melting coating feed device for cooling medium circulation flowing with to supporting rack, spectroscope, reflect the light path cooling system of focus lamp cooling.Be formed in the laser melting coating feed device for the flowing of cooling medium circulation with to supporting rack, spectroscope, reflection focus lamp cooling light path cooling system, it can be achieved that good cooling-down effect, and then supporting rack, spectroscope, the service life for reflecting focus lamp can be improved.
Description
Technical field
The present invention relates to a kind of laser melting coating feed devices, belong to field of laser processing.
Background technology
In advanced laser machining forming manufacturing technology, there are one key technologies, i.e., by laser and are melt synchronous material biography
It transports to and shapes position, and metal material is made continuously, accurately, equably to put on machined surface to make scanning fortune by desired trajectory
In dynamic focal beam spot, realize that light material accurately couples.Material carries out the conversion of luminous energy and thermal energy, instant melting and shape in light beam
Into molten bath, the metallurgical process that the rapid melting of material solidifies is completed.The feeding method of domestic and foreign current can be divided into the outer wire feed of light
With wire feed in light.
The structure of the outer wire feed of light is as shown in Figure 1, it uses unilateral wire feed, in existing Laser Overlaying cladding or welding method
In, mirror 110 is focused by the laser beam 11 of laser transmitting and is focused into cone-shaped beam 12, but, due to wire-feeding pipe and spinneret 13
Angle installation can only be tilted with respect to cone-shaped beam 12, the silk material 14 sent out by spinneret can only be inclined by being sent into laser beam, institute
To generally require adjustment silk material is needed to make it in facula position and beam intersection (bibliography before processing：Wang Zhiyao chief editor China
Material engineering grand ceremony Beijing of volume 25：Chemical Industry Press, 2006；2nd, Zuo Tiechuan edit .21 centuries advanced manufacture-swash
Light technology and engineering Beijing, Science Press, 2007,5；3、Waheed UI Haq Syed,Lin Li.Effects of
wire feeding direction and location in multiple layer diode laser direct
metal deposition.Applied Surface Science,24March 2005).By above-mentioned as can be seen that unilateral side
The greatest drawback that wire feed is brought is exactly that silk material is to be tilted into molten bath, the heat work of suffered light beam irradiation, molten bath heat transfer and radiation
With asymmetric, uneven, especially when inevitably there is directional change in cladding, that is, laser beam is with respect to machined surface in processing
When making the scanning motion of different directions, just there are different orientation and posture in light beam and silk material relative scanning motion direction, silk material
Melting and the heat effect in molten bath and power mechanism effect will change, so that solidification Hou Rong roads size, pattern, surface
Roughness etc. can vary widely or even cause melting process off and on.For common one direction in unilateral wire feed
Beam-shaping effect is not present in the single-layer or multi-layer cladding built-up welding of scanning, will not change because it is sent into orientation angles, and to complexity
For particularly three-dimensional directly rapid shaping etc. the techniques of surface build-up welding, since scanning track and direction are constantly changing, influence just
It is very prominent, the continuity of cladding or molten road quality all it is difficult to ensure that.In addition, during cladding silk material be sent into point must workpiece surface with
The intersecting therewith coincidence of beam focal location, intersection point again because being limited on weld pool surface in the region of next very little, but if plus
This intersection point has positional fluctuation and variation (inevitably, especially in multilayer accumulation), silk with respect to finished surface (or molten bath) up and down in work
The heat effect of material will change again, and the fusion process of silk material may be made discontinuously to carry out, and the bending of silk material leading portion, light and silk are discontinuously right
Accurate and dislocation so makes the minor variations of relative position between the continuity of cladding process and molten road quality focus point and machined surface
It is all very sensitive.In addition, laser cladding process often needs to convey inert protective gas around molten bath, generated with blow pressure cladding
Hot flame, slag etc., so as to protect cylinder lumen eyeglass not contaminated, while molten bath is not oxidized.In the lateral wire feed of the prior art
In device, since structure limits, protective gas also can only be blowed laterally, uneven to the blow pressure power in molten bath, air turbulence, be protected
It is poor to protect effect.
Wire feeding cladding method uses feeding method in laser light as disclosed in Chinese Patent No. CN101386111A in light
Wire feeder in light has light inlet in the laser light above cylinder of the wire feeding cladding method using wire feeder in light, and lower section has
Light-emitting window, light inlet are coaxial with light-emitting window.Three ribs of body centre uniform design are connected with cylinder inboard wall, are secured on rib
One conscope, the conical mirror of conscope is facing towards light inlet and co-axial line.Incoming laser beam is cut, reflected by conscope
It is transformed to annular beam.An annular reflection focus lamp also it has been co-axially mounted on cylinder inboard wall with conscope, minute surface is towards institute
State conscope.The annular beam of conscope reflection is incided on annular reflection focus lamp, then is reflected and gathered by annular reflection focus lamp
Burnt cyclization cone focused beams, form a tapered hollow no light zone and focus in ring cone focused beams, focus light-emitting window it
Outside.Single wire-feeding pipe is inserted into outside cylinder, the gap through conscope and annular reflection focus lamp, reaches the conscope back of the body
Switch to behind face and ring cone-shaped beam coaxial line so that the spinneret of wire feed tube end is placed in the tapered hollow of the ring cone-shaped beam
In no light zone, and with ring cone-shaped beam coaxial line.Spinneret outlet port is close to the focus of ring cone-shaped beam.Silk material is from wire-feeding pipe
Middle feeding is exported by the spinneret of wire-feeding pipe lower end, is irradiated being surrounded close to focal point by the ring cone-shaped beam lower part, so
Afterwards under the collective effect of the molten bath heat transfer of illumination and substrate surface, heat radiation etc. by heating and continuous melting and vertically into
Molten bath treats that the substrate surface of cladding is adjusted to the near focal point, fuses into the silk material in molten bath and the base material Surface sheet of part fusing
Material is collectively formed molten bath, the melt in molten bath with the relative movement of light beam and base material and continuous solidification forms molten road.Above rib
Side to light painting be coated with light absorbent, cooling water channel is provided with inside rib.It can effectively be reduced by being arranged to bead structures and met
Light area reduces illumination loss.The wire-feeding pipe is in the in vivo side to light painting of cylinder and is coated with light absorbent, and inside is provided with cooling
Water channel.
In this light although wire feeder has the following effects that：
Hollow ring focus on light beam is obtained by light chopper, wire-feeding pipe is made to be placed in focus on light beam hollow part and and light beam
Coaxial line, silk material and focus on light beam are coaxially sent into spot center by forward direction in processing, silk material always by annular beam symmetrically
It surrounds.In cladding process, no matter how silk material and light beam change with respect to the direction of relative movement of machined surface (or molten bath), such as
In three-dimensional cladding processing when light beam scanning direction arbitrarily changes, the orientation and appearance in light beam and silk material relative scanning motion direction
State is identical, and the melting of silk material and the heat effect in molten bath and power mechanism do not change theoretically, completely eliminate and sweep
Retouch the influence that directionality is brought.On the other hand, when light beam fluctuates generation defocus with respect to molten bath up and down, silk material can be directed at hot spot always
With the center in molten bath, hot spot and silk material will not misplace.In this way, silk material is remained unchanged with molten bath by the mode of heat effect, make hot work
It is uniform, stable with holding.Under the influence of scanning light beam is with respect to the variation of machined surface three-dimensional position, the active force between silk material and molten bath
Perseverance is forward direction, and silk material does not cause skewed, is conducive to that molten bath driving force is balanced and melt flows are symmetrical.Meanwhile silk material hypomere and plus
Work surface is subject to laser irradiation and the heat effect in molten bath symmetrically always, and uniform heated and process of setting is greatly improved
Molten road quality.
But still remain following deficiency：
Since incident light has to that, by three gussets on cylinder, following defect can be brought：
1st, light has energy loss, reduces effective cladding energy by three gussets；
Although the 2, being applied on the side to light of rib and being coated with light absorbent, but if technology stability is bad, it is anti-still to have light
Condenser is mapped to, easily so that it crosses cause thermal damage, so, it is more demanding to coating light absorbent technology difficulty；
There are scale error when the 3rd, assembling due to conscope and focus lamp, cause to focus on the light that illumination is mapped on three gussets
The position dimension that beam area is different or light beam is on gusset is different, therefore it is inconsistent to be easy to cause three gussets deformations, is easy to cause
The coaxial precision of hot spot and silk material is not high in cladding process, declines so as to cause cladding quality；
4th, cooling water channel is provided only on inside rib, so, cooling-down effect unobvious；Spinneret outlet port is far from cladding area
Domain is closer, and silk material can be communicated the temperature on spinneret, and for spinneret due to the presence of high temperature, being not only easily deformed causes hot spot
With the coaxial deterioration in accuracy of silk material, and be easy to cause nozzle damage.Due to the space very little between Ring-beam and wire feeding mouth,
It can not arrange that water route cools down, more spinneret be caused to be easily damaged；
5th, light also passes through wire-feeding pipe, not only adds energy loss, and due to there was only part illumination on whole wire-feeding pipe
Its surface is mapped to, since uneven heating is even, wire-feeding pipe deformation is also resulted in, wire-feeder resistance is caused to increase, ultimately results in wire feed mistake
Journey medium velocity changes, and influences cladding layer form accuracy.
The content of the invention
It is an object of the invention to provide a kind of laser melting coating feed devices for realizing good cooling-down effect.
In order to achieve the above objectives, the present invention provides following technical solution：A kind of laser melting coating feed device, receives incident light
The incident beam is simultaneously converted into focus on light beam to form focus on base material by beam, and the laser melting coating feed device includes branch
Support, the spectroscope being arranged on support frame as described above and reflection focus lamp and the nozzle below the reflection focus lamp, institute
It states spectroscope and incident beam is divided at least two beam the reflected beams, then focused at least two beam the reflected beams by reflecting focus lamp
Into at least two beam focus on light beam, at least focus on light beam described in two beams forms hollow no light zone and focus, the laser melting coating feeding
It is formed in device and is cooled down for the flowing of cooling medium circulation with the light path to support frame as described above, spectroscope, reflection focus lamp cooling
System.
Further：The light path cooling system include be opened in support frame as described above for cooling medium by first
Cooling duct, be opened in the spectroscope for cooling medium by the second cooling duct and be opened in it is described reflection focus on
In mirror for cooling medium by the 3rd cooling duct, first cooling duct is cold respectively at the second cooling duct and the 3rd
But passage connects.
Further：It is formed in the laser melting coating feed device for the flowing of cooling medium circulation to drop to the nozzle
The nozzle cooling system of temperature.
Further：Nozzle housing is arranged on the nozzle, the nozzle housing includes base portion, through the base portion
Nozzle installation through-hole and in base portion towards the coldplate muscle to be formed is protruded out in the nozzle installation through-hole, the nozzle housing passes through institute
It states nozzle installation through-hole to cover to intermediate channel on the nozzle, is formed in the base portion, the coldplate muscle is located at centre
Between passage and the nozzle, and the nozzle is posted by, is further opened on the base portion cold with the intermediate channel unicom
But medium entrance and cooling media outlet, the nozzle cooling system is by the intermediate channel, cooling medium inlet, cooling medium
Outlet and coldplate muscle composition, the cooling medium is followed by cooling medium inlet, intermediate channel and cooling media outlet.
Further：The nozzle housing is located in the hollow no light zone.
Further：The laser melting coating feed device further includes jackshaft, and support frame as described above includes lower bracing frame, described
Jackshaft is mounted in the lower bracing frame, and the jackshaft is located at the spectroscope and reflects the lower section of focus lamp, the spray
Mouth is mounted on the jackshaft, and in the hollow no light zone, the first feeding passage is provided in the lower bracing frame,
The feeding entrance for running through the lower bracing frame one side by first feeding passage, the centre are provided in the lower bracing frame
Feeding guide groove is provided in axis, the second feeding passage of the nozzle is provided through in the nozzle, the feeding guide groove
One end is connected with the first feeding passage, and the other end is connected with the second feeding passage.
Further：The first protective gas passage is set in the lower bracing frame, the second protection gas is set in the jackshaft
Body passage is provided with the 3rd protective gas passage, one end of the second protective gas passage and the first protection in the nozzle
Gas passage docks, and the other end is docked with the 3rd protective gas passage.
Further：Nozzle housing is provided on the nozzle, is formed through in the nozzle housing outside the nozzle
4th protective gas passage of set, the both ends of the 3rd protective gas passage are protected respectively at the second protective gas passage, the 4th
Gas passage docking is protected, the 4th protective gas passage, the second feeding passage and hollow no light zone, focus are coaxial.
Further：The laser melting coating feed device further includes jackshaft, and support frame as described above includes lower bracing frame, described
Jackshaft is mounted in the lower bracing frame, and the jackshaft is located at the spectroscope and reflects the lower section of focus lamp, the spray
Mouth is mounted on the jackshaft, and in the hollow no light zone, the first protective gas passage is set in the lower bracing frame,
Second protective gas passage in the jackshaft is set, the 3rd protective gas passage is provided in the nozzle, described second protects
One end of shield gas passage is docked with the first protective gas passage, and the other end is docked with the 3rd protective gas passage.
Further：The spectroscope and reflection focus lamp it is coaxial, the spectroscope include two light splitting minute surfaces, described point
Light microscopic face is plane or arc shaped surface；The reflection focus lamp has the focusing minute surface towards light splitting minute surface, and the focusing minute surface is
One camber minute surface, alternatively, the focusing minute surface is made of multiple camber minute surfaces.
The beneficial effects of the present invention are：By being formed in the laser melting coating feed device for cooling medium circulation stream
It moves to give support frame as described above, spectroscope, the light path cooling system of reflection focus lamp cooling, so as to give supporting rack simultaneously, be divided
Mirror, reflection focus lamp cooling, realize good cooling-down effect, and then can improve supporting rack, spectroscope, the use longevity of reflection focus lamp
Life.
Above description is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, below with presently preferred embodiments of the present invention and coordinate attached drawing be described in detail as after.
Description of the drawings
Fig. 1 is the schematic diagram of the outer feeding method of existing laser melting and coating technique light；
Fig. 2 is the sectional view of the laser melting coating feed device shown in a preferred embodiment of the present invention, is illustrated containing light path；
Fig. 3 is spectroscopical structure diagram in Fig. 2；
Fig. 4 is spectroscope shown in Fig. 3 in the structure diagram on other direction；
Fig. 5 is the structure diagram of lower bracing frame in Fig. 2；
Fig. 6 is the lower bracing frame shown in Fig. 5 in the structure diagram on other direction；
Fig. 7 is part-structure schematic diagram in Fig. 2；
Fig. 8 for laser melting coating feed device shown in Fig. 2 in the sectional view on other direction, without light path；
Fig. 9 is the enlarged drawing of the part-structure in Fig. 8；
Figure 10 is the assembling figure of part-structure in Fig. 2；
Figure 11 is the enlarged drawing of the part-structure in Fig. 2；
Figure 12 is the structure diagram of nozzle housing in Fig. 2；
Figure 13 is the structure diagram that the nozzle shown in Figure 12 is coated on other direction；
Figure 14 is the structure diagram of the light cladding feed device shown in another embodiment of the present invention；
Figure 15 is the light cladding feed device shown in Figure 14 in the structure diagram on another visual angle.
Specific embodiment
With reference to the accompanying drawings and examples, the specific embodiment of the present invention is described in further detail.Implement below
Example is not limited to the scope of the present invention for illustrating the present invention.
Fig. 2 and Fig. 7 are referred to, the laser melting coating feed device shown in embodiment one is receiving incident beam 20 and by institute
It states incident beam 20 and is converted into focus on light beam 30 to form focus 40 on base material 80.The laser melting coating feed device includes branch
Support 21, the spectroscope 22 being arranged on support frame as described above 21 and reflection focus lamp 23 reflect 23 lower section of focus lamp positioned at described
Nozzle 24 and the jackshaft 25 on support frame as described above 21, the spectroscope 22 by incident beam 20 be divided to for two beams reflect
Light beam 50, then two beam the reflected beams 50 are focused into two beam focus on light beam 30 by reflecting focus lamp 23, focus on light described in two beams
Beam 30 forms hollow no light zone 60 and focus 40.In Fig. 2, signified black shaded area is light path part, which includes
Incident beam 20, the reflected beams 50, focus on light beam 30 and the focus 40 formed on base material 80.Incorporated by reference to Fig. 2, Fig. 5 and figure
6, support frame as described above 21 includes lower bracing frame 211 and the upper support frame 212 being fixed in the lower bracing frame 211, the lower branch
Support 211 is protruded upward including the upper support frame mounting portion 2111 of structure in a ring, on the upper support frame mounting portion 2111
Formation reflects focus lamp mounting portion 2112, positioned at the hollow interior fixing piece 2113 of the upper support frame mounting portion 2111 and company
The bearing rib 2114 of fixing piece 2113 and upper support frame mounting portion 2111 is connect, the reflection focus lamp mounting portion 2112 is in ring
Shape, the outside diameter of the upper support frame mounting portion 2111 are more than the outside diameter of reflection focus lamp mounting portion 2112.On described
Supporting rack 212 is mounted on the upper support frame mounting portion 2111, and the reflection focus lamp 23 is mounted on the reflection focus lamp
On mounting portion 2112, the fixing piece 2113 includes the spectroscope mounting surface 2115 being disposed opposite to each other and jackshaft mounting surface 2116,
The spectroscope 22 is fixed on spectroscope mounting surface 2115.The jackshaft 25 is fixed on the jackshaft mounting surface 2116
On, which is located at 22 lower section of spectroscope, and the nozzle 24 is mounted on the jackshaft 25.The fixing piece 2113 with it is upper
Supporting rack mounting portion 2111 does not connect, and is formed with the annular hollow 2117 passed through for focus on light beam 30 between the two.The support
The projection of gusset 2114 is located in the annular hollow 2117, and the bearing rib 2117 staggers with focus on light beam 30.In this reality
It applies in example, which is located in annular hollow 2117, and annular hollow 2117 is divided by the bearing rib 2114
Two arcuate segments passed through for two beam focus on light beam 30.In the present embodiment, which is located in hollow no light zone 60,
In the present embodiment, since nozzle 24 is arranged on jackshaft 25, and in hollow no light zone 60, so the present embodiment swashs
Light cladding feed device is using feeding in light.The upper support frame 212 and lower bracing frame 211 enclose to set to form a cavity and (do not mark
Number), the reflection focus lamp 23, spectroscope 22 are located in the cavity, and the top of the upper support frame 212 is provided with incident light
Beam opening 2121.Fig. 2 and Fig. 7 are referred to, support frame as described above 21 and incident beam 20, the reflected beams 50, focus on light beam 30 are wrong
It opens up and puts, specifically：The incident beam 20, the reflected beams 50, focus on light beam 30, should with 2114 stagger setting of bearing rib
Focus on light beam 30 is passed through out of annular hollow 2117.By by supporting rack 21 and incident beam 20, the reflected beams 50, focus on light beam
30 equal stagger settings so that the supporting rack 21 is not interfered with incident beam 20, the reflected beams 50, focus on light beam 30, are reduced
The energy loss of light path improves capacity usage ratio, in addition, by such design, avoids what is passed through in the prior art in light path
Region coating light absorbent so as to help to reduce technology difficulty, helps to reduce cost.Incorporated by reference to Fig. 3, the spectroscope 22
Including two light splitting minute surfaces 221, the light splitting minute surface 221 is plane or arc shaped surface.Incorporated by reference to Fig. 4, the reflection focus lamp 23
For hollow circular cylinder structure, the reflection focus lamp 23 has the focusing minute surface 231 towards light splitting minute surface 221, the focus lamp
Face 231 is a camber minute surface, alternatively, the focusing minute surface 231 is made of multiple camber minute surfaces.Refer to Fig. 2, the spectroscope
22 is coaxial with reflection focus lamp 23.
It is formed in the laser melting coating feed device for cooling medium circulation flowing with to support frame as described above 21, spectroscope
22nd, the light path cooling system that focus lamp 23 cools down and the nozzle for for medium circulation is cooled down to flow the nozzle 24 being given to cool down are reflected
24 cooling systems.Really, in other embodiments, the light path cooling system and 24 cooling system of nozzle can select a presence.
Refer to Fig. 8, the light path cooling system include being opened in it is in support frame as described above 21 and for cooling medium by it is first cold
But passage 213, be opened in the spectroscope 22 and for cooling medium by the second cooling duct 222 and be opened in described
Reflect focus lamp 23 in and for cooling medium by the 3rd cooling duct 232.First cooling duct 213 is respectively at
Two cooling ducts 222 are connected with the 3rd cooling duct 232.Fig. 2 and Fig. 9 are referred to, and combines Figure 12 and Figure 13, the nozzle 24
On be arranged with nozzle housing 70, the nozzle housing 70 include base portion 71, through the base portion 71 nozzle installation through-hole 72 and
In base portion 71 towards the coldplate muscle 73 to be formed is protruded out in the nozzle installation through-hole 72, the nozzle housing 70 passes through the nozzle
72 sets of installation through-hole is formed with intermediate channel 74, the coldplate muscle 73 is located on the nozzle 24 in the base portion 71
Between intermediate channel 74 and the nozzle 24, and it is posted by the nozzle 24.It is further opened on the base portion 71 and the centre
The cooling medium inlet 75 of 74 unicom of passage and cooling media outlet 76.It is outer that there is the base portion opposite coldplate muscle 73 to set
Side 711, the cooling medium inlet 75 and cooling media outlet 76 run through the lateral surface 711 of base portion 71.It is described cooling medium according to
Secondary cooling medium inlet 75, intermediate channel 74 and cooling media outlet 76, the nozzle cooling system of flowing through is led to by above-mentioned centre
Road 74, cooling medium inlet 75, cooling media outlet 76 and coldplate muscle 73 form.Since nozzle housing 70 passes through coldplate muscle
73 contact directly with nozzle 24, so as to reduce the temperature of nozzle 24, to provide the service life of nozzle 24.Incorporated by reference to Fig. 2,
In the present embodiment, the nozzle housing 70 is located in the hollow no light zone 60, by by nozzle housing 70 as hollow nothing
In light area 60, light path can be avoided to be irradiated to cold so as to influence so as to prevent nozzle housing 70 is formed with focus on light beam 30 from interfering
But effect, and also contribute to reduce the energy loss of light path, improve capacity usage ratio.
It refers to Fig. 9 and combines Fig. 5, be provided with the first feeding passage 214 in the lower bracing frame 211, first feeding
Passage 214 is specially to be opened in bearing rib 2114.It is provided in the lower bracing frame 211 by first feeding passage
214 run through the feeding entrance 215 of 211 one side of lower bracing frame, and the feeding entrance 215 is located at reflection focus lamp mounting portion
On 2112 circle end face 2118.Feeding guide groove 251 is provided in the jackshaft 25, institute is provided through in the nozzle 24
State the second feeding passage 241 of nozzle 24, one end of the feeding guide groove 251 is connected with the first feeding passage 214, the other end with
Second feeding passage 241 connects.Feeding is formed by first feeding passage 214, feeding guide groove 251, the second feeding passage 241
Channel system.First feeding passage 214 is entered by feeding entrance 215 by melt material, and passes through feeding guide groove 251 and second
Cladding region where feeding passage 241 into focus 40, it is directly right by 251 and second feeding passage 241 of feeding guide groove
Connect, it is smooth by the flowing of melt material so as to facilitate, leave after nozzle 24 theoretically can be completely coaxial by melt material and light path,
Leave and hollow no light zone 60 be introduced by melt material after nozzle 24, close at focus 40 by under the two beams focus on light beam 30
Portion surrounds irradiation, is then heated and connected under the collective effect of the molten bath heat transfer on illumination Yu 80 surface of base material, heat radiation etc.
Continuous fusing and vertically into molten bath, treat that 80 surface of base material of cladding is adjusted near the focus 40, fuse into the material in molten bath with
80 skin-material of base material of part fusing is collectively formed molten bath, the melt in molten bath with two light beams and base material 80 relative movement
And continuous solidification forms molten road.
Fig. 8 is referred to, sets the first protective gas passage 216 in the lower bracing frame 211, the is set in the jackshaft 25
Two protective gas passages 252 are provided with the 3rd protective gas passage 242, the second protective gas passage in the nozzle 24
252 one end is docked with the first protective gas passage 216, and the other end is docked with the 3rd protective gas passage 242.Due to this implementation
Nozzle housing 70 is provided in example, so, in the present embodiment, the nozzle housing is formed through in the nozzle housing 70
70 the 4th protective gas passage 77,77 part of the 4th protective gas passage be to be formed on base portion 71 inner fovea part 771 (see
Figure 12), formed by base portion 71 and coldplate muscle 73, annular slab 78 is provided on the base portion 71, the 4th protective gas leads to
The another part in road 77 is located on the annular slab 78, which is along the straight of annular slab 78
The groove 772 that footpath direction extends to form, the inner face 781 and bottom face 782 of the groove 772 perforation annular slab 78 are (see figure
13).The both ends of the 3rd protective gas passage 242 are respectively at the second protective gas passage 252, the 4th protective gas passage 77
Docking, the 4th protective gas passage 77, the second feeding passage 241 and hollow no light zone 60, focus 40 are coaxial.
Figure 14 and Figure 15 are referred to, the laser melting coating feed device shown in the present embodiment two and the laser shown in embodiment one
The structure of cladding feed device is roughly the same, and distinctive points are：First, in the present embodiment, the focus on light beam 30 ' is three beams；2nd,
Nozzle housing is not provided in the present embodiment on nozzle 24 '.Focus on light beam 30 ' is realized for three beams especially by such as lower structure：It is adopted
Spectroscope 22 ' includes three light splitting minute surfaces, and the light splitting minute surface is similarly plane or arc shaped surface, and used reflection focuses on
Mirror (not shown) is with embodiment one, and the spectroscope 22 ' and reflection focus lamp are coaxial, and due to the tool of spectroscope 22 ', there are three divide
Light microscopic face, so incident beam 20 ' is divided into three beams the reflected beams 50 ' by the spectroscope 22 ', reflection focus lamp 23 ' is anti-by three beams
Irradiating light beam 50 ' is focused into three beams focus on light beam 30 ', and focus on light beam 30 ' described in three beams forms hollow no light zone (non-label) and coke
Point (non-label).The fixing piece 2113 ' does not connect equally with upper support frame mounting portion 2111 ', and is formed with confession between the two
The annular hollow 2117 ' that focus on light beam 30 ' passes through, annular hollow 2117 ' is divided by the bearing rib 2114 ' to be gathered for three beams
Three arcuate segments that defocused laser beam 30 ' passes through.By the way that focus on light beam 30 ' is become three beams, light is focused on two beams in embodiment one
Beam is compared so that reflection focus lamp 23 ' is more uniformly stressed, it is not easy to be deformed, and is easier to ensure that cladding precision and reliability.
Really, in other embodiments, the nozzle in the laser melting coating feed device with three light beam focus on light beam
On with embodiment one equally set nozzle housing, alternatively, the focus on light beam can be arranged to other quantity.
In summary：Above-mentioned laser melting coating feed device has the following advantages that：
1st, by be formed in the laser melting coating feed device for cooling medium circulation flowing with to support frame as described above 21,
The light path cooling system that spectroscope 22 (22 '), reflection focus lamp 23 cool down, so as to simultaneously to supporting rack 21, spectroscope 22
(22 '), reflection focus lamp 23 cool down, and realize good cooling-down effect, and then can improve supporting rack 21, spectroscope 22 (22 '), reflection
The service life of focus lamp 23.
2nd, by setting nozzle housing 70, and the nozzle cooling system to cool down to nozzle 24 is set in nozzle housing 70
System to reduce the temperature of nozzle 24, improves the service life of nozzle 24；Nozzle housing 70 is arranged on hollow no light zone 60 simultaneously, is made
Nozzle cooling system staggers completely with light path, illumination is avoided to be mapped to so as to influence cooling effect.
3rd, by by supporting rack 21 and incident beam 20 (20 '), the reflected beams 50 (50 '), the equal stagger setting of focus on light beam,
So that the supporting rack 21 is not interfered with incident beam 20 (20 '), the reflected beams 50 (50 '), focus on light beam, light beam is reduced
Energy loss improves capacity usage ratio, in addition, by such design, avoids and is applied in the prior art in the region that light beam passes through
Light absorbent is plated, so as to help to reduce technology difficulty, helps to reduce cost.
4th, since light path is without feeding passage system, light path will not be subject to by melt material and by melt material relevant range
Illumination effect, so as to which the unobstructed of feeding passage system be effectively ensured, reduce feeding speed variation, improve cladding layer shape
Precision.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and description is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that come for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (6)
1. a kind of laser melting coating feed device receives incident beam and the incident beam is converted into focus on light beam in base material
Upper formation focus, it is poly- that the laser melting coating feed device includes supporting rack, the spectroscope being arranged on support frame as described above and reflection
Incident beam is divided at least two beam the reflected beams by burnt mirror and the nozzle below the reflection focus lamp, the spectroscope,
At least two beam the reflected beams are focused at least two beam focus on light beam, focus on light beam at least described in two beams by reflecting focus lamp again
Form hollow no light zone and focus, which is characterized in that be formed in the laser melting coating feed device for cooling medium circulation stream
It moves to give support frame as described above, spectroscope, the light path cooling system of reflection focus lamp cooling；Support frame as described above and the incident light
Beam, the reflected beams and light beam stagger setting；The light path cooling system, which includes being opened in support frame as described above, supplies cooling
Medium by the first cooling duct, be opened in the spectroscope for cooling medium by the second cooling duct and open up
In the reflection focus lamp for cooling medium by the 3rd cooling duct, first cooling duct is cold with second respectively
But passage and the connection of the 3rd cooling duct；It is formed in the laser melting coating feed device for cooling medium circulation flowing with to institute
State the nozzle cooling system of nozzle cooling；Nozzle housing is arranged on the nozzle, the nozzle housing includes base portion, through institute
The nozzle installation through-hole of base portion is stated and in base portion towards protruding out the coldplate muscle to be formed in the nozzle installation through-hole, outside the nozzle
Set is covered by the nozzle installation through-hole on the nozzle, being formed with intermediate channel, the coldplate muscle in the base portion
Between intermediate channel and the nozzle, and the nozzle is posted by, is further opened on the base portion and the intermediate channel
The cooling medium inlet of unicom and cooling media outlet, the nozzle cooling system by the intermediate channel, cooling medium inlet,
Media outlet and coldplate muscle composition are cooled down, the cooling medium is situated between followed by cooling medium inlet, intermediate channel and cooling
Matter exports；The nozzle housing is located in the hollow no light zone.
2. laser melting coating feed device as described in claim 1, which is characterized in that the laser melting coating feed device further includes
Jackshaft, support frame as described above include lower bracing frame, and the jackshaft is mounted in the lower bracing frame, and the jackshaft is located at institute
It states spectroscope and reflects the lower section of focus lamp, the nozzle is mounted on the jackshaft, and in the hollow no light zone,
The first feeding passage is provided in the lower bracing frame, is provided in the lower bracing frame and institute is run through by first feeding passage
The feeding entrance of lower bracing frame one side is stated, feeding guide groove is provided in the jackshaft, is provided through in the nozzle described
Second feeding passage of nozzle, one end of the feeding guide groove are connected with the first feeding passage, the other end and the second feeding passage
Connection.
3. laser melting coating feed device as claimed in claim 2, which is characterized in that the first protection gas is set in the lower bracing frame
Body passage, the jackshaft is interior to set the second protective gas passage, and the 3rd protective gas passage is provided in the nozzle, described
One end of second protective gas passage is docked with the first protective gas passage, and the other end is docked with the 3rd protective gas passage.
4. laser melting coating feed device as claimed in claim 3, which is characterized in that nozzle housing is provided on the nozzle,
The 4th protective gas passage of the nozzle housing is formed through in the nozzle housing, the 3rd protective gas passage
Both ends are docked respectively at the second protective gas passage, the 4th protective gas passage, the 4th protective gas passage, the second feeding
Passage and hollow no light zone, focus are coaxial.
5. laser melting coating feed device as described in claim 1, which is characterized in that the laser melting coating feed device further includes
Jackshaft, support frame as described above include lower bracing frame, and the jackshaft is mounted in the lower bracing frame, and the jackshaft is located at institute
It states spectroscope and reflects the lower section of focus lamp, the nozzle is mounted on the jackshaft, and in the hollow no light zone,
It sets the first protective gas passage in the lower bracing frame, the second protective gas passage is set in the jackshaft, in the nozzle
The 3rd protective gas passage is provided with, one end of the second protective gas passage is docked with the first protective gas passage, another
It is docked with the 3rd protective gas passage at end.
6. laser melting coating feed device as described in claim 1, which is characterized in that the spectroscope and reflection focus lamp are same
Axis, the spectroscope include two light splitting minute surfaces, and the light splitting minute surface is plane or arc shaped surface；The reflection focus lamp has court
To the focusing minute surface of light splitting minute surface, the focusing minute surface is a camber minute surface, alternatively, the focusing minute surface is by multiple camber minute surfaces
It forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610937029.1A CN106392314B (en) | 2016-11-01 | 2016-11-01 | Laser melting coating feed device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610937029.1A CN106392314B (en) | 2016-11-01 | 2016-11-01 | Laser melting coating feed device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106392314A CN106392314A (en) | 2017-02-15 |
| CN106392314B true CN106392314B (en) | 2018-05-22 |
Family
ID=58012627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610937029.1A Active CN106392314B (en) | 2016-11-01 | 2016-11-01 | Laser melting coating feed device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106392314B (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107227455B (en) * | 2017-08-04 | 2023-10-27 | 苏州大学 | Laser cladding device |
| CN107385435B (en) * | 2017-09-18 | 2023-08-25 | 苏州大学 | Cladding shower nozzle and laser cladding device |
| CN107363357A (en) * | 2017-09-20 | 2017-11-21 | 苏州大学 | Laser cladding device |
| DE102018202797B4 (en) * | 2018-02-23 | 2022-07-14 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Laser processing head designed for laser wire build-up welding |
| CN108544092A (en) * | 2018-04-25 | 2018-09-18 | 上海产业技术研究院 | A kind of coaxial wire feed deposition head for laser metal printing |
| CN109365813A (en) * | 2018-12-18 | 2019-02-22 | 苏州大学 | A kind of three-dimensional space any direction laser cladding apparatus |
| CN109351973A (en) * | 2018-12-18 | 2019-02-19 | 苏州大学 | A kind of three-dimensional space any direction cladding forming method |
| CN109628920A (en) * | 2018-12-18 | 2019-04-16 | 苏州大学 | A kind of three-dimensional space any direction cladding spray head |
| CN109989060B (en) * | 2019-04-17 | 2021-01-15 | 中国人民解放军军事科学院国防科技创新研究院 | Coaxial powder feeding high-speed laser spraying device |
| CN110144581B (en) * | 2019-04-29 | 2023-07-04 | 苏州大学 | Optical internal wire feeding laser cladding device |
| CN110587139A (en) * | 2019-10-09 | 2019-12-20 | 西安增材制造国家研究院有限公司 | Coaxial wire and powder feeding printing nozzle and additive manufacturing device for arc laser |
| CN110699686A (en) * | 2019-11-18 | 2020-01-17 | 苏州大学 | Material increasing and decreasing composite machine tool |
| CN111441050A (en) * | 2020-04-28 | 2020-07-24 | 苏州大学 | Laser ultra-high-speed cladding head, laser ultra-high-speed cladding system and laser ultra-high-speed cladding method |
| CN113021880B (en) * | 2021-03-01 | 2023-06-09 | 南京中科煜宸激光技术有限公司 | Dust collecting device for coaxial powder feeding laser cladding head |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6756561B2 (en) * | 1999-09-30 | 2004-06-29 | National Research Council Of Canada | Laser consolidation apparatus for manufacturing precise structures |
| CN101148760A (en) * | 2006-09-22 | 2008-03-26 | 苏州大学 | Technique for manufacturing inner-light powder-supplying by laser machining forming and inner-light powder-supplying spray head |
| CN101386111A (en) * | 2007-09-14 | 2009-03-18 | 苏州大学 | Inside-laser wire feeding cladding method and inside-laser wire feeding device |
| CN101733550A (en) * | 2010-01-09 | 2010-06-16 | 苏州大学 | Welding wire sending and pulverized solder sending laser cladding forming method and device |
| CN202367348U (en) * | 2011-11-11 | 2012-08-08 | 苏州大学 | Laser processing inside-laser coaxial wire feed sprayer |
| CN104195543A (en) * | 2014-08-18 | 2014-12-10 | 苏州克兰兹电子科技有限公司 | In-light coaxial composite wire-feeding and powder-feeding laser cladding system |
| CN105562951A (en) * | 2016-02-03 | 2016-05-11 | 苏州大学 | Laser in-beam wire feeding device for laser cladding |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3686317B2 (en) * | 2000-08-10 | 2005-08-24 | 三菱重工業株式会社 | Laser processing head and laser processing apparatus provided with the same |
-
2016
- 2016-11-01 CN CN201610937029.1A patent/CN106392314B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6756561B2 (en) * | 1999-09-30 | 2004-06-29 | National Research Council Of Canada | Laser consolidation apparatus for manufacturing precise structures |
| CN101148760A (en) * | 2006-09-22 | 2008-03-26 | 苏州大学 | Technique for manufacturing inner-light powder-supplying by laser machining forming and inner-light powder-supplying spray head |
| CN101386111A (en) * | 2007-09-14 | 2009-03-18 | 苏州大学 | Inside-laser wire feeding cladding method and inside-laser wire feeding device |
| CN101733550A (en) * | 2010-01-09 | 2010-06-16 | 苏州大学 | Welding wire sending and pulverized solder sending laser cladding forming method and device |
| CN202367348U (en) * | 2011-11-11 | 2012-08-08 | 苏州大学 | Laser processing inside-laser coaxial wire feed sprayer |
| CN104195543A (en) * | 2014-08-18 | 2014-12-10 | 苏州克兰兹电子科技有限公司 | In-light coaxial composite wire-feeding and powder-feeding laser cladding system |
| CN105562951A (en) * | 2016-02-03 | 2016-05-11 | 苏州大学 | Laser in-beam wire feeding device for laser cladding |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106392314A (en) | 2017-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106392314B (en) | Laser melting coating feed device | |
| CN106312304B (en) | Laser melting coating feed device | |
| CN206356731U (en) | Laser melting coating feed device | |
| CN101733550B (en) | Welding wire sending and pulverized solder sending laser cladding forming method and device | |
| CN101386111A (en) | Inside-laser wire feeding cladding method and inside-laser wire feeding device | |
| CN201823642U (en) | Laser cladding coaxial powder delivery nozzle comprising guide protective air flow | |
| CN101264519B (en) | Adjustable laser coaxial powder feeding nozzle | |
| CN1087992C (en) | Laser/powder metal coat spray head | |
| CN104289811A (en) | Multi-beam center wire feeding laser processing head and processing method thereof | |
| CN214768946U (en) | Three-beam wire powder mixed laser cladding system | |
| CN105562951B (en) | Wire feeder in a kind of laser light for laser melting coating | |
| CN110587139A (en) | Coaxial wire and powder feeding printing nozzle and additive manufacturing device for arc laser | |
| CN108500491A (en) | The coaxial compound increasing material manufacturing device and method of laser-cold metal transfer electric arc | |
| CN206567684U (en) | Laser melting coating feed device | |
| CN100512977C (en) | Multifunctional coaxial laser nozzle | |
| CN113102781A (en) | Three-beam wire powder mixed laser cladding system | |
| CN113235084B (en) | High-speed cladding method for realizing annular hollow partial-focus laser | |
| CN113215562B (en) | Three-beam silk powder mixed laser cladding spray head | |
| JP6962847B2 (en) | Cooling equipment and laser processing equipment | |
| CN108856942A (en) | A kind of method of automobile calash high-rate laser soldering | |
| CN204570041U (en) | A kind of optical-fiber laser coaxial powder-feeding mouth | |
| CN111761213A (en) | Cutting gas circuit device of laser head | |
| CN202684335U (en) | Coaxial nozzle used for thin-wall tube laser micromachining | |
| CN107385435B (en) | Cladding shower nozzle and laser cladding device | |
| CN216473480U (en) | Laser cladding device with gas protection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |