CN206584125U - Laser wide-band cladding device - Google Patents
Laser wide-band cladding device Download PDFInfo
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- CN206584125U CN206584125U CN201621106294.7U CN201621106294U CN206584125U CN 206584125 U CN206584125 U CN 206584125U CN 201621106294 U CN201621106294 U CN 201621106294U CN 206584125 U CN206584125 U CN 206584125U
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Abstract
The utility model is related to a kind of laser wide-band cladding device, belong to 3D molding fields, the laser beam that laser is sent can be changed and is incident upon on machined surface by the laser wide-band cladding device is used for broadband laser cladding processing, laser wide-band cladding device includes speculum and dimorphism face reflection part, laser beam is reflected to dimorphism face reflection part by speculum, dimorphism face reflection part includes upper reflective face and the lower reflective face below upper reflective face, upper reflective face is parabolic focus type face, lower reflective face is plane, upper reflective face is received to be reflected to form Wideband Focusing line spot on machined surface after laser beam, lower reflective face is reflected to form rectangular light spot on machined surface after receiving laser beam, rectangular light spot is located at the outside of Wideband Focusing line spot, the laser wide-band cladding device can meet the technique heat treatment requirements of different materials and structure, reduce the defect probability such as crucible zone residual thermal stress and crackle.
Description
Technical field
The utility model is related to a kind of laser wide-band cladding device, belongs to 3D molding fields.
Background technology
The direct 3D claddings deposition formation of laser of metal and the component of alloy zero, the reinforcing of critical function surface cladding are modified, repaiied
Remanufacturing again etc. has great application value in fields such as Aero-Space, national defence, shipbuilding, mine, metallurgy, machine-building and preceding
Scape, is the prior development direction of current each developed country.China is also clearly by the basic technique and core of metal increasing material manufacturing
The research and development of heart basic components are classified as the field of giving priority to.Wherein, laser wide-band cladding is that a kind of efficient laser melting coating increases material system
Make technology.Laser wide-band cladding single track shaping width is big, and single pass can reach 10-40mm (arrowband cladding is only φ 1-5mm),
Therefore cladding efficiency high；The cladding of large-area laser broadband can also greatly reduce overlap joint number of times and repeat heated, and thus reduction brings
Defect probability, uneven thickness, structure property decline etc..Traditional heavy parts manufacture is generally required by large-scale die forging or die casting
Machine, manufacturing cost height, cycle length, restrictive condition are more, defect is difficult to control to, and broadband laser cladding increasing material manufacturing be it is discrete by
Layer free accumulation shaping, can save the equipment such as super large forging press, the metallurgical process of its discretization and formable functionally gradient material (FGM)
Technique is more beneficial for ensureing Microstructure Performance and controls defect, reinforcing in the component of band large-scale metal zero, repair and directly 3D into
The material increasing fields such as shape all very advantageous.
Laser wide-band cladding mainly includes several passes such as laser beam quality and conversion, the conveying of broadband powder beam, the coupling of light powder
Key technology.The existing method of broadband powder beam conveying is：From the side of rectangular solid laser beam or two-side synchronous feeding machined surface
Broadband hot spot on, powder beam under luminous energy effect of irradiation consolidation formed broadband melt road.Bilateral powder feeding can carry out coming and going bilateral scanning,
Forming efficiency can be improved.But either unilateral or bilateral powder feeding, powder beam is all located at the outside of laser beam, it can be referred to as " outside light
Broadband powder feeding ".Be not difficult to analyze broadband automatic powder feeding system outside existing light with reference to Fig. 1 a still to come with some shortcomings, such as light powder coupling it is poor,
Powder using efficiency is low, cladding quality is unstable, be not suitable for the problems such as high inclination-angle change labyrinth in space shapes.
In order to solve the above problems, prior art provides broadband powder delivery method (Fig. 2) in a kind of dual-beam hollow light,
Its light path is with powder feeding principle：, will through spectroscope using multi-purpose in the market semiconductor or optical fiber laser flat-top light source
Incoming laser beam is divided into two, then line focus mirror is reflected into hollow double focusing defocused laser beam, and powder beam vertically sends into double focusing by powder feeding comb
In the middle of burnt hot spot (molten bath), the coupling of light powder is completed.It can be seen that with reference to Fig. 2 and Fig. 1 b hollow due to solid light beam being changed to
Dual-beam, two beam powder are laterally sent into and is changed to single beam powder and is vertically sent into, light, powder position are just exchanged.That thus brings is excellent
Point：
(1) dual-beam after light splitting is located at both sides double team powder beam, such as Fig. 1 b, Fig. 2.In defocus position, double hot spot spacing are slightly
Increase, in threshold range, dual-beam irradiated site still forms molten bath with gap location, and powder beam center line all the time can perpendicular alignmnet molten bath
Center line；The collimation protection gas three of gas curtain one for surrounding single powder beam is used：Collimate powder beam, protection molten bath, protection nozzle cavity, parallel list
Powder beam list gas curtain is without interference.If any fluctuation defocus up and down between shower nozzle and machined surface, the centering of light powder will not also misplace, into molten bath
Amount of powder substantially without too big change.Two-way round scanning time powder relative position will not also become.
(2) in the middle of double hot spots that wall scroll broadband powder beam is always positioned at, coming and going both direction scanning always has a light belt to be in
The rear edge of powder captures powder in molten bath, and powder diverging and surface adhesion greatly reduce, and not only powder using efficiency is carried significantly
Height, and enter the powder amount stabilization in molten bath, molten bath consolidation process is more stable, and molten road surface is brighter and cleaner, reduces defect source.
(3) collimation protection gas tightly surrounds powder beam and coaxially conveyed, can be further to powder beam formation pressure gas curtain (Fig. 1 b)
Regular and collimation powder beam, powder space is more accurate, straight, thin, endure, when completing space high inclination-angle cladding and dynamic swing shaping, powder
Air-flow vertically presses to molten bath all the time, is conducive to molten bath stable and does not trickle.
(4) bireflectance focus lamp gives wide spot light powder coupled modes to bring great flexibility.Two focusing mirrors are designed
Into different operating face type, different spot sizes and Energy distribution are can obtain, the enhanced saddle light distribution of such as both ends energy,
Or the low energy density light beams of increase preheating slow cooling function etc., the photic-energy transfer or the coupling of light powder that can flexibly meet difference in functionality will
Ask.
But, broadband powder feeding still suffers from following problem in existing dual-beam light：Because the suddenly cold and hot of laser melting coating is made
With rapidoprint can be made to produce big overheat and degree of supercooling, easily cause the cracking of crucible zone.In order to solve the above problems, introduce pre-
The cold slow technology of heat, slow cooling can effectively reduce thermograde after the preheating and cladding of matrix, discharge residual thermal stress.Now preheat slow cooling
The method of the external heat sources such as the more use electromagnetic induction of technology, resistance heating, overall heating, heating temperature are carried out to workpiece matrix
Generally 200-600 DEG C of degree, overall heating has certain effect, but when the reparation of big part or 3D shape, the position of processing stand
Change can cause the distance change from heating zone, so as to bring the change of preheating slow cooling temperature, another attachment device also shows burden.For
Avoid above-mentioned influence, one of method is direct to carry out local servo-actuated preheating in molten bath front and back using low energy laser beam
And slow cooling, the method be not required to use other thermals source and device.Such as, Carl Edward Ericson are proposed using a laser
Device input high density roundlet shaped light beam carries out cladding, and another laser inputs coaxial low-density great circle shaped light beam and preheated
With the concept (specifically referring to U.S. Patent Application No. US2009/0283501A1) of slow cooling；Wang Dongsheng proposes a kind of 2 squares
Shape Bright folding, forms the convex hot spot of one cladding+preheating slow cooling effect, power density narrowing toward each end broad in the middle, analog simulation card
It is bright：Convex hot spot reduces the thermograde of cladding area and non-cladding area, and thermal stress reduces 10%, reduces cracking trend (tool
Body refers to Chinese patent application the CN201310286772.1st)；Horse broad sense etc. proposes a kind of laser cladding process and utilizes ellipse
Laser beam, i.e., be divided into the small rectangle cladding light beam of superposition and big ellipse preheating delayed by the preheating slow cooling method of circular uniform beam
Cold light beam (specifically refers to Chinese patent application the CN201410480190.1st)；Zhou Shengfeng, Dai Xiaoqin propose following two kinds
Method, one be light beam by transmiting one-to-two beam, to machined surface on one be cladding spot, one be front preheating process spot；Two be by
Foregoing 2 beam light adds a laser emitting light beam to project to form cladding hot spot as front preheating process and rearmounted slow cooling hot spot, then separately
It is placed in the middle of preheating slow cooling hot spot and (specifically refers to Chinese patent application the CN201110352225.th and the
No. CN20110352257.X).
The above-mentioned content for carrying out servo-actuated preheating and slow cooling using main and auxiliary multiple beam mostly reports light path and principle, has
Compliance test result has been carried out using emulation mode, it is some to have carried out cladding with precoating coating method.But cladding main beam and preheating slow cooling
The optics microscope group integrated approach of auxiliary light beam or the rare report of integrated ejecting device.
Utility model content
The purpose of this utility model is to provide a kind of laser wide-band cladding device, and it can meet different materials and structure
Technique heat treatment requirements, reduce the defect probability such as crucible zone residual thermal stress and crackle.
To reach above-mentioned purpose, the utility model provides following technical scheme：A kind of laser wide-band cladding device, will can swash
The laser beam that light device is sent, which is changed and is incident upon on machined surface, is used for broadband laser cladding processing, the laser wide-band cladding dress
Put including speculum and dimorphism face reflection part, laser beam is reflected to dimorphism face reflection part, the dimorphism by the speculum
Face reflection part includes upper reflective face and the lower reflective face below the upper reflective face, and the upper reflective face is
Parabolic focus type face, the lower reflective face is plane, and the upper reflective face, which is received, to be reflected after laser beam with processing
Wideband Focusing line spot is formed on face, the lower reflective face is reflected to form rectangular light on machined surface after receiving laser beam
Spot, the rectangular light spot is located at the outside of Wideband Focusing line spot.
Further：Dimorphism face reflection part is one piece of speculum, and dimorphism face reflection part has work type
Face, upper reflective face and the lower reflective face formation is on the working surface.
Further：Dimorphism face reflection part is by two pieces of speculum groups into the upper reflective face is formed therein
On one piece of speculum, the lower reflective face formation is on another piece of speculum.
Further：Dimorphism face reflection part is two groups, the upper reflective face of dimorphism face reflection part described in two groups
It is oppositely arranged, the lower reflective face of dimorphism face reflection part is oppositely arranged described in two groups.
Further：The speculum is light splitting plane mirror, and the light splitting plane mirror includes dorsad arranging simultaneously
Meet to the first reflecting surface and the second reflecting surface for entering laser beam, dimorphism face reflecting part described in one group of the first reflecting surface direction
Part, second reflecting surface is towards dimorphism face reflection part described in another group.
Further：The first reflecting surface and the second reflecting surface of the light splitting plane mirror are dorsad arranged symmetrically.
Further：The angle of first reflecting surface and the second reflecting surface is between 60 °~120 °.
Further：The laser wide-band cladding device also include powder feeding comb or powder feeding flat tube, the powder feeding comb or
One end of powder feeding flat tube is located at the lower section of the speculum and the vertical machined surface extension.
Further：The laser wide-band cladding device also includes the collimation being arranged between the laser and speculum
Mirror, the divergent laser beam that the collimating mirror is sent laser collimates to be projected to speculum after directional light.
Further：Dimorphism face reflection part can be moved relative to the speculum light direction respectively.
The beneficial effects of the utility model are：Laser wide-band cladding device of the present utility model in dimorphism face by reflecting
Upper reflective face and lower reflective face are set on part, and the upper reflective face is parabolic focus type face, lower reflective face is flat
Face, forms high density Wideband Focusing line spot (i.e. cladding hot spot), by this to focus on reflecting surface by the top on machined surface
The bottom plane of reflection can form low-density rectangle spot (preheating slow cooling hot spot) on machined surface, so as to meet different materials and knot
The technique heat treatment requirements of structure, the defect generation probability such as reduction crucible zone thermal stress and reduction fire check.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand skill of the present utility model
Art means, and being practiced according to the content of specification, with preferred embodiment of the present utility model and coordinate accompanying drawing detailed below
Describe in detail bright as after.
Brief description of the drawings
Fig. 1 a are the schematic diagram of the outer powder feeding of existing single beam bilateral；
Fig. 1 b are the schematic diagram of existing dual-beam internal powder conveying；
Fig. 2 is powder feeding schematic diagram in broadband in existing dual-beam light；
Fig. 3 is a kind of structural representation of laser wide-band cladding device shown in the preferred embodiment of the utility model one, figure
In, dotted line is the projecting direction of laser beam.
Embodiment
With reference to the accompanying drawings and examples, embodiment of the present utility model is described in further detail.Below
Embodiment is used to illustrate the utility model, but is not limited to scope of the present utility model.
Fig. 1 is referred to, a kind of laser wide-band cladding device 10 shown in the preferred embodiment of the utility model one is by laser
The laser beam that (not shown) is sent, which is changed and is incident upon on machined surface 20, is used for broadband laser cladding processing, and the laser is used
Power be 1000W~20000W, the laser beam of the generating laser transmits by optical fiber 50.The laser wide-band cladding device 10
Positioned at the top of machined surface 20.The laser wide-band cladding device 10 includes collimating mirror 1, speculum 2 and dimorphism face reflection part 3.
The specification of the collimating mirror 1 is selected according to the watt level of laser, and the collimating mirror 1 is located between laser and speculum 2,
In the present embodiment, the collimating mirror 1 is located at the surface of speculum 2.The speculum 2 has reflecting surface.The dimorphism face reflection
Part 3 is two groups, and dimorphism face reflection part 3 described in two groups is located at the two sides of the speculum 2, and the reflection tilts set up
Put, and towards dimorphism face reflection part 3.Dimorphism face reflection part 3 includes upper reflective face 31 and anti-positioned at the top
The lower reflective face 32 of the lower section of face 31 is penetrated, the upper reflective face 31 is parabolic focus type face, and the lower reflective face 32 is flat
Face.The plane 31 to be obliquely installed towards machined surface 20, the extension line of the extension line of the plane 32 and the machined surface 20 of bottom into
Certain angle, the angle is an acute angle.The collimating mirror 1 swashs the divergent laser beam collimation that optical fiber 50 transmits output for parallel
Speculum 2 is projected to after light beam, the laser beam is reflected to dimorphism face reflection part 3, the dimorphism face reflection by the speculum 2
The upper reflective face 31 of part 3, which is received, to be focused on reflection to form Wideband Focusing line spot 30 on machined surface 20 after laser beam
(i.e. high density cladding hot spot), the lower reflective face 32 is reflected to form rectangular light in machined surface 20 after receiving laser beam
Spot 40 (i.e. low-density preheating slow cooling hot spot), the rectangular light spot 40 is located at the outside of Wideband Focusing line spot 30.In other embodiment party
In formula, when laser or other Optical devices are output as preferable collimated light beam, then light beam is not required to collimation, can not use collimation
Mirror 1, i.e. laser wide-band cladding device 10 do not include collimating mirror.
In the present embodiment, dimorphism face reflection part 3 is one piece of speculum 2, and dimorphism face reflection part 3 has
Working surface 33, the upper reflective face 31 and lower reflective face 32 are formed on the working surface 33.The top reflection
Face 31 and lower reflective face 32 can be integrally formed to form the working surface 33.Pass through such a design so that overall structure is more
To be simple.In other embodiments, the dimorphism face reflection part 3 can be by two pieces of speculum groups into the upper reflective face
On 31 one piece of speculum formed therein, the lower reflective face 32 is formed on another piece of speculum.Two pieces of speculums can lead to
Cross connector connection or bonded by adhesive.No matter the upper reflective face 31 and the one piece of speculum of formation of lower reflective face 32
On, still it is respectively formed on two pieces of speculums, the focusing focal length of the upper reflective face is in 150mm~500mm, and the top is anti-
The width for penetrating face and lower reflective face is equal, and dimension scale in the height direction is 8:2~7:3.In addition, in the present embodiment
In, the center line of two symmetric reflective mirrors 2 of upper reflective face 31 is set, two broadbands formed on focal plane or working face is focused on
Focal line spot 30 is the line style spot that relative center line is distributed, its line thickness size about 1~3mm.Two lower reflective face symmetric reflectives
Mirror center line is set, the two pieces of rectangular light spots reflexed on finished surface and the 0~3mm of distance for focusing on line style hot spot.
In originally implementing, the speculum 2 uses light splitting plane mirror, and the light splitting plane mirror 2 has the back of the body
To the first reflecting surface 21 and the second reflecting surface 22 for arranging and introducing laser beam, first reflecting surface 21 is towards described in one group
Dimorphism face reflection part 3, second reflecting surface 22 is towards dimorphism face reflection part 3 described in another group., can by such a design
So that overall structure is more simple.In the present embodiment, the reflecting surface 22 of the first reflecting surface 21 and second is specially dorsad symmetrical
Arrangement.Really, the quantity of the speculum 2 can also be two.Two speculums 2 are anti-including the first speculum and second
Penetrate mirror, first speculum has the first reflecting surface, second speculum has the second reflecting surface, first reflecting surface and
Second reflecting surface is dorsad set, and first speculum and the second speculum equally can be to be dorsad arranged symmetrically, and described first is anti-
Penetrate facing to one group in dimorphism face reflection part 3 described in two groups, second reflecting surface reflects towards dimorphism face described in two groups
Another group in part 3.No matter above-mentioned speculum 2 using light splitting plane mirror or other, first reflecting surface and the
The angle of two reflectings surface is between 60 °~120 °, preferably 90 °, when using 90 ° of this numerical value, for other values, its
Structure is the simplest, is easy to manufacture.
In order that the position of the Wideband Focusing line spot 30, rectangular light spot 40 on working face is adjustable, to meet different process need
Ask, dimorphism face reflection part 3 is arranged to move relative to the light splitting plane mirror 2, i.e. two dimorphism face reflecting parts
The relative spacing of part 3 is adjustable, so as to may be implemented in the Wideband Focusing line spot 30 of centre 2 on machined surface 20 from (between having necessarily
Away from) or distance that is overlapping and realizing 2 Wideband Focusing line spots 30 or degree of overlapping change (focus on light beam defocusing amount and line spot are thick
Carefully can be constant).In the present embodiment, the angle on light splitting plane mirror 2 between first reflecting surface and the second reflecting surface is 90 °
When, the laser beam that 2 beams are reflected is collinearly reverse, and 2 dimorphism faces reflection part 3 can relatively described light splitting plane mirror 2
Move that (direction shown in arrow a is the moving direction of dimorphism face reflection part 3 in the present embodiment, i.e. water in Fig. 3 in the horizontal direction
Square to, its also be light splitting plane mirror 2 light direction), in other embodiments, when 2 on light splitting plane mirror
When angle is not 90 ° between individual reflecting surface, 2 dimorphism face reflection parts 3 swash 2 beams of relatively described light splitting plane mirror 2
The light direction of light beam is moved respectively.
The laser wide-band cladding device 10 also includes powder feeding comb (not shown), and one end of the powder feeding comb is positioned at described
The lower section of speculum 2, be specially：Powder feeding comb is located at the underface of speculum 2.One end of the powder feeding comb stretches to reflection
The lower section of mirror 2, and simultaneously extend in vertical operation face 20 towards the lower section of speculum 2, it is anti-that the powder feeding comb is located at two tops
Penetrate between the 2 beam laser beams after the reception of face 31 laser beam and reflected to form, and the mouth of pipe (nozzle) the alignment machined surface of powder feeding comb
The center of 2 Wideband Focusing line spots 30 on 20, away from working face distance between 10~40mm.By such a design, it can be formed
Light beam broadband internal powder conveying.The width of broadband cladding is formed according to the line length of Wideband Focusing line spot, can be by according to different cladding broadbands
The powder feeding pipe is designed as 3~7, forms the comb being arranged side by side, and comb is parallel with Wideband Focusing line spot.Around powder feeding comb
It is disposed with the collimation air flue parallel and coaxial with powder feeding comb.The broadband internal powder conveying principle is：Powder feeding comb is located at speculum 2
Lower section, and enter in 2 pieces of middle cavities of dimorphism face reflection part 3, then turn to down 2 broadbands on simultaneously vertical machined surface 20
The center of focal line spot 30 to spray the arrangement collimation air flue parallel and coaxial with powder feeding pipe around linear powder beam, powder feeding comb,
Gas bag is collimated in work and encloses 2 Wideband Focusing line spots on powder beam and coaxial vertical directive machined surface 20 that powder feeding comb sent out
30 center, carries out double broad band light beam internal powder conveying cladding formings on horizontal basal plane or wide-angle space oblique base.
The operation principle of above-mentioned laser wide-band cladding device 10 is as follows：The laser beam of laser output is by square-section fibre core
Optical fiber 50 transmit, be parallel square laser beam by being collimated after collimating mirror 1, subsequently into light splitting plane mirror 2 and quilt
The light splitting plane mirror 2 is divided into 2 beam rectangular laser beams, and then respectively enter the both sides of light splitting plane mirror 2 two groups are double
Type face speculum 3, because every group of dimorphism face reflection part 3 includes upper reflective face 31 and lower reflective face 32, and the top
Reflecting surface 31 is parabolic focus type face, and lower reflective face 32 is plane, so, it will reflect outgoing-line type after the light of upper reflective face 31
Focus on light beam, to form the higher Wideband Focusing line spot 30 (i.e. cladding hot spot) of 2 luminous energy densities on the machined surface 20 of lower section,
The light of lower reflective face 32 reflexes to (i.e. pre- to form the relatively low rectangular light spot 40 of 2 pieces of luminous energy densities on the machined surface 20 of lower section
Hot slow cooling hot spot).When in use, two dimorphism face reflection parts 3 can also adjust it the distance between with speculum 2,
To realize the Wideband Focusing line spot 30 of centre 2 on machined surface 20 from (at regular intervals) or overlapping and realize 2 broadbands
Distance or the degree of overlapping change of focal line spot 30 (defocusing amount can be constant with line spot thickness).
In summary：Laser wide-band cladding device 10 on dimorphism face reflection part 3 by setting the He of upper reflective face 31
Lower reflective face 32, and the upper reflective face 31 is parabolic focus type face, lower reflective face 32 is plane, with anti-by the top
Penetrate face 31 and high density Wideband Focusing line spot 30 (i.e. cladding hot spot) is formed on machined surface 20, added by the lower reflective face 32
Low-density rectangle spot (preheating slow cooling hot spot) is formed on work face 20, so that powder using efficiency is favorably improved, reduction crucible zone heat
Stress and crackle probability, improve broadband cladding quality.
By being arranged to dimorphism face reflection part 3 to move relative to the light splitting plane mirror 2, specially should
Dimorphism face reflection part can be moved relative to the dichroic reflector light direction respectively, so that double high density Wideband Focusing line spots can
Registration or separating degree are adjusted, to adjust pool width change, that is, the controllable variations of molten bath internal power density are realized, meanwhile, shape
Servo-actuated preheating slow cooling area before and after moving molten bath into working surface, helps further to reduce crucible zone thermal stress and crackle is several
Rate.
In addition, compared with prior art, laser wide-band cladding device 10 of the present utility model can be only with a laser
Device is that can be achieved to form 2 cladding hot spots and 2 preheating slow cooling hot spots, simple and compact for structure.Because powder feeding comb is located at reflection
The lower section of mirror 2, and the powder feeding comb is located at the laser beam after two reception of upper reflective faces 31 laser beams and reflected to form
Between, and the center of two Wideband Focusing line spots 30 on the mouth of pipe directive machined surface 20 of powder feeding pipe, so that upper reflective face 31
The laser beam reflected to form all the time from both sides sandwich powder beam, no matter the single powder beam of powder feeding comb outgoing line style hot spot focusing
Position or defocus position, light powder all can be coupled accurately, device defocus be fluctuated insensitive；The powder beam exported out of powder feeding pipe is all the time
To realize vertical feeding between double focusing defocused laser beam, enter light rate height, powder using efficiency is multiplied, in the same of material-saving environmental
When, powder adhesion can be reduced, surface quality is improved；The present embodiment is by using many powder feeding pipe powder feedings so that powder beam divergence angle
Very little, powder area of beam product change is little, so as to be conducive to molten road dimensionally stable, improves forming quality.
In addition, due to being disposed with the collimation air flue with powder feeding pipe parallel coaxial around powder feeding pipe, collimation gas curtain is helped
In further regular and boundling powder, make up to it is thin, very, it is accurate, straight, controllability further increases, while especially adapting to shower nozzle
Do space and become posture change inclination angle dynamic motion operation, the multi-faceted reinforcing reparation or 3D for completing the large complicated part in space increase material system
Make.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply 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 of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and it describes more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that for the common skill of this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
Protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
1. a kind of laser wide-band cladding device, can change the laser beam that laser is sent and be incident upon on machined surface is used for width
Band laser melting coating processing, it is characterised in that the laser wide-band cladding device includes speculum and dimorphism face reflection part, described
Laser beam is reflected to dimorphism face reflection part by speculum, and dimorphism face reflection part includes upper reflective face and positioned at described
Lower reflective face below upper reflective face, the upper reflective face is parabolic focus type face, and the lower reflective face is plane,
The upper reflective face is received to be reflected to form Wideband Focusing line spot, the lower reflective face on machined surface after laser beam
Receive and reflected after laser beam to form rectangular light spot on machined surface, the rectangular light spot is located at the outer of Wideband Focusing line spot
Side.
2. laser wide-band cladding device as claimed in claim 1, it is characterised in that：Dimorphism face reflection part is one piece anti-
Mirror is penetrated, dimorphism face reflection part has working surface, and upper reflective face and the lower reflective face formation is in the work
On type face.
3. laser wide-band cladding device as claimed in claim 1, it is characterised in that：Dimorphism face reflection part is anti-by two pieces
Microscope group is penetrated on upper reflective face one piece of speculum formed therein, the lower reflective face formation is at another piece
On the speculum.
4. laser wide-band cladding device as claimed in claim 1, it is characterised in that：Dimorphism face reflection part is two groups,
The upper reflective face of dimorphism face reflection part is oppositely arranged described in two groups, the lower reflective face of dimorphism face reflection part described in two groups
It is oppositely arranged.
5. laser wide-band cladding device as claimed in claim 4, it is characterised in that：The speculum is light splitting plane reflection
Mirror, the light splitting plane mirror includes dorsad arranging and meeting to the first reflecting surface and the second reflecting surface for entering laser beam, described
First reflecting surface is towards dimorphism face reflection part described in one group, and second reflecting surface is towards dimorphism face reflecting part described in another group
Part.
6. laser wide-band cladding device as claimed in claim 5, it is characterised in that：The first of the light splitting plane mirror is anti-
Penetrate face and the second reflecting surface is dorsad arranged symmetrically.
7. laser wide-band cladding device as claimed in claim 5, it is characterised in that：First reflecting surface and the second reflecting surface
Angle between 60 °~120 °.
8. laser wide-band cladding device as claimed in claim 1, it is characterised in that：The laser wide-band cladding device also includes
Powder feeding comb or powder feeding flat tube, one end of the powder feeding comb or powder feeding flat tube are positioned at the lower section of the speculum and vertically described
Machined surface extends.
9. laser wide-band cladding device as claimed in claim 1, it is characterised in that：The laser wide-band cladding device also includes
The collimating mirror between the laser and speculum is arranged on, the divergent laser beam that the collimating mirror is sent laser is collimated
To be projected to speculum after directional light.
10. the laser wide-band cladding device as described in any one in claim 1 to 9, it is characterised in that：The dimorphism face
Reflection part can be moved relative to the speculum light direction respectively.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106444049A (en) * | 2016-10-09 | 2017-02-22 | 苏州大学 | Laser broadband fusion covering device |
| CN111020569A (en) * | 2019-12-31 | 2020-04-17 | 南京中科煜宸激光技术有限公司 | Single-beam double-light-spot composite energy field laser cladding head and optical assembly thereof |
| CN111230246A (en) * | 2019-03-19 | 2020-06-05 | 沈阳工业大学 | Double-focus center wire feeding laser processing head and processing method thereof |
| CN111455377A (en) * | 2020-05-19 | 2020-07-28 | 宝宇(武汉)激光技术有限公司 | Laser cladding device and method |
| CN111560612A (en) * | 2020-06-18 | 2020-08-21 | 河北光束激光科技有限公司 | Laser cladding device and method capable of changing non-uniform distribution of Gaussian light energy |
-
2016
- 2016-10-09 CN CN201621106294.7U patent/CN206584125U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106444049A (en) * | 2016-10-09 | 2017-02-22 | 苏州大学 | Laser broadband fusion covering device |
| CN111230246A (en) * | 2019-03-19 | 2020-06-05 | 沈阳工业大学 | Double-focus center wire feeding laser processing head and processing method thereof |
| CN111020569A (en) * | 2019-12-31 | 2020-04-17 | 南京中科煜宸激光技术有限公司 | Single-beam double-light-spot composite energy field laser cladding head and optical assembly thereof |
| CN111020569B (en) * | 2019-12-31 | 2020-09-01 | 南京中科煜宸激光技术有限公司 | Single-beam double-light-spot composite energy field laser cladding head and optical assembly thereof |
| CN111455377A (en) * | 2020-05-19 | 2020-07-28 | 宝宇(武汉)激光技术有限公司 | Laser cladding device and method |
| CN111455377B (en) * | 2020-05-19 | 2024-03-26 | 宝宇(武汉)激光技术有限公司 | Laser cladding device and method |
| CN111560612A (en) * | 2020-06-18 | 2020-08-21 | 河北光束激光科技有限公司 | Laser cladding device and method capable of changing non-uniform distribution of Gaussian light energy |
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