CN106862756A - Multi-angle can preheat reversal-flame type laser melting coating head - Google Patents
Multi-angle can preheat reversal-flame type laser melting coating head Download PDFInfo
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- CN106862756A CN106862756A CN201710239927.4A CN201710239927A CN106862756A CN 106862756 A CN106862756 A CN 106862756A CN 201710239927 A CN201710239927 A CN 201710239927A CN 106862756 A CN106862756 A CN 106862756A
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- Prior art keywords
- beam splitting
- melting coating
- laser melting
- cavity
- angle
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- 239000011248 coating agent Substances 0.000 title claims abstract description 36
- 238000000576 coating method Methods 0.000 title claims abstract description 36
- 238000002844 melting Methods 0.000 title claims abstract description 35
- 230000008018 melting Effects 0.000 title claims abstract description 35
- 230000007246 mechanism Effects 0.000 claims abstract description 50
- 239000011521 glass Substances 0.000 claims abstract description 12
- 238000010422 painting Methods 0.000 claims description 6
- 238000005253 cladding Methods 0.000 abstract description 18
- 239000000463 material Substances 0.000 abstract description 10
- 238000001816 cooling Methods 0.000 abstract description 5
- 230000009466 transformation Effects 0.000 abstract description 2
- 238000005496 tempering Methods 0.000 description 11
- 239000000843 powder Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 241000233855 Orchidaceae Species 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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
- B23K26/04—Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light
- B23K26/046—Automatically focusing the laser beam
-
- 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
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/082—Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Laser Beam Processing (AREA)
Abstract
Reversal-flame type laser melting coating head can be preheated the invention discloses a kind of multi-angle, including：Beam splitting mechanism, beam splitting zoom mechanism, laser scanning follower and laser melting coating mechanism.The beam splitting mechanism includes：Beam splitting cavity, spectroscope, spectroscope glass support plate, gusseted block, curved mirror and rotation pivot flange；Beam splitting cavity top in the beam splitting mechanism is provided with rotation pivot flange, and six circular holes for installing curved mirror are provided with the lower anchor ring of the rotation pivot flange；The beam splitting cavity includes the tapered portion on top and the cylindrical part of bottom；The outer wall inclined plane circumferencial direction of the beam splitting cavity tapered portion is evenly equipped with six circle convex platforms；Multi-angle of the present invention can preheat reversal-flame type laser melting coating head, can be arranged on industrial robot A6 axles, or on the main shaft of the Digit Control Machine Tool installed in transformation, multi-faceted base material can be preheated, cladding layer is tempered, considerably reduce thermograde, effectively reduce because the residual stress caused by the fast hot rapid cooling of single laser beam, crack-sensitivity, tissue odds influence.
Description
Technical field
The laser being tempered to cladding layer the present invention relates to be preheated to base material before a kind of laser melting coating, after cladding melts
Cover head.
Background technology
At present, laser melting coating is a kind of advanced process for modifying surface, and cladding material is added by substrate surface, is utilized
The method that the laser beam of high-energy-density is allowed to the consolidation together with base material thin layer, it is the molten of metallurgical binding to be formed with it in substrate surface
Coating.The part of labyrinth can either be produced, damaged part can be repaired again, be widely used in manufacturing
Each field.
Directly irradiation melts it to laser beam in material surface, then makes its quick cooled and solidified by heat transfer, so that
Formed in material surface and mutually melted with matrix.The characteristics of quick heating and quick cooling, causes excessive thermograde, is easily caused
There is larger residual stress in cladding layer, with cracking sensitivity higher.In addition, structural homogenity is also poor, and exist
A number of stomata.This is one of the reason for laser melting coating is restricted in commercial Application.
The content of the invention
According to technical problem set forth above, and providing a kind of multi-angle can preheat reversal-flame type laser melting coating head, Neng Gouan
On industrial robot A6 axles, or on the main shaft of transformation Digit Control Machine Tool, for manufacturing or repairing machine components, it is used for
Existing laser melting coating is solved, quick heating causes excessive thermograde with the characteristics of quickly cooling, is easily caused cladding layer
It is middle to there is larger residual stress, it is also poor with cracking sensitivity higher, and structural homogenity, and there is certain amount
Stomata shortcoming.The technological means that the present invention is used is as follows：
A kind of multi-angle can preheat reversal-flame type laser melting coating head, including：Beam splitting mechanism, beam splitting zoom mechanism, laser scanning
Follower and laser melting coating mechanism.
The beam splitting mechanism includes：Beam splitting cavity, spectroscope, spectroscope glass support plate, gusseted block, curved mirror and
Rotation pivot flange；Beam splitting cavity top in the beam splitting mechanism is provided with rotation pivot flange, the rotation pivot flange
Lower anchor ring on be provided with six for installing the circular holes of curved mirror；The beam splitting cavity includes tapered portion and the bottom on top
Cylindrical part；The outer wall inclined plane circumferencial direction of the beam splitting cavity tapered portion is evenly equipped with six circle convex platforms；Described light splitting
Looking glass supporting plate is arranged at the top of beam splitting cavity cylindrical part；The spectroscope glass support plate upper surface passes through gusseted
Block is provided with spectroscope.
The laser scanning follower includes：Gear wheel, little gear, stepper motor, rotation pivot flange, light beam connection
Sleeve, taper roll bearing, bearings plate and electric machine support；On light beam branch sleeve in the laser scanning follower
Portion is provided with stepper motor by electric machine support, and the rotation pivot flange upper end outer wall is provided with gear wheel, the gear wheel
It is connected with stepper motor by little gear；The light beam branch sleeve bottom outer wall with rotation pivot flange bearing hole it
Between be provided with taper roll bearing, the light beam branch sleeve bottom is provided with the bearing for carrying spacing taper roll bearing
Supporting plate.
Described beam splitting zoom mechanism is arranged at the circle convex platform end of beam splitting cavity；Described laser melting coating mechanism is set
In the beam splitting cavity cylindrical part bottom；When driving stepper motor rotates pivot flange, and beam splitting cavity is rotated, and can be adjusted
Spectroscopical light splitting angle, and then adjust the angle that beam splitting zoom mechanism is refracted into by curved mirror.
Include as the preferred beam splitting zoom mechanism：Beam splitting concavees lens, camera lens connection ring, lens focusing ring, beam splitter
Head and beam splitting convex lens；Beam splitting concavees lens in the beam splitting zoom mechanism are arranged at the circle convex platform endoporus of beam splitting cavity, institute
State beam splitting cavity circle convex platform end and lens focusing ring is provided with by camera lens connection ring, the lens focusing ring is connected with camera lens
Ring is threadedly coupled；The lens focusing ring end is provided with beam splitting camera lens, and the beam splitting camera lens endoporus is provided with beam splitting convex lens.
Include as the preferred laser melting coating mechanism：Melting-painting nozzle, cooling water connector, water inlet, delivery port, powder
Fairlead, taper laser set, terminal pad, baffle vane, protection gas are passed through mouth and powder inlet ports；The laser melting coating mechanism it is molten
Painting nozzle is connected with the bottom of beam splitting cavity cylindrical part.
As preferably six centers of circle of the curved mirror being differed apart from d to the center of circle for rotating pivot flange.
It is uniformly distributed in radial cross-section as the circle convex platform of preferred beam splitting cavity tapered portion, and forms one group two-by-two,
Longitudinal section circle convex platform axis and horizontal direction angle, θ2It is different.
As the preferred gusseted block angle, θ1It is different.
Compared with prior art, multi-angle of the present invention can preheat reversal-flame type laser melting coating head, with following excellent
Point：
1st, multi-angle of the present invention can preheat reversal-flame type laser melting coating head, when driving stepper motor rotates supporting methods
Orchid, and beam splitting cavity is rotated, and can adjust spectroscopical light splitting angle, and then regulation is refracted into beam splitting zoom by curved mirror
The angle of mechanism, makes to inject beam splitting zoom mechanism by spectroscope, curved mirror, and the collimated light beam major part in beam splitting cavity is through master
Light beam convex lens are used for laser melting coating, and remainder injects beam splitting zoom mechanism by spectroscope, curved mirror, and in laser melting coating
The direction of advance of head is preheated, and direction of retreat is tempered, and is effectively reduced because of the remnants caused by the fast hot rapid cooling of single laser beam
Stress, crack-sensitivity, the influence of tissue odds；Multi-faceted base material can be preheated, cladding layer is tempered, greatly
Reduce thermograde.
2nd, multi-angle of the present invention can preheat reversal-flame type laser melting coating head, spectroscope, curved mirror and beam splitting zoom
Mechanism is provided with six, is divided into three pairs, is provided with three pairs of preheatings, tempering laser head for being selected under different technical parameters, together
When lens focusing ring can also be adjusted to change laser facula size, easy to adjust, feasibility is high.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Fig. 1 is structural representation of the invention.
Fig. 2 is beam splitting laser head arrangement front view of the present invention.
Fig. 3 is beam splitting laser head arrangement top view of the present invention.
Fig. 4 is laser beam splitter index path of the present invention.
Fig. 5 is θ of the present invention1、θ2, d, D relation schematic diagram.
Fig. 6 is laser scanning follower schematic diagram of the present invention.
Fig. 7 is track flow chart of the present invention.
Fig. 8 is using effect figure of the invention.
Wherein：1st, light beam branch sleeve, 2, gear wheel, 3, taper roll bearing, 4, rotation pivot flange, 5, beam splitting chamber
Body, 6, beam splitting concavees lens, 7, camera lens connection ring, 8, lens focusing ring, 9, beam splitting convex lens, 10, beam splitting camera lens, 11, cladding spray
Mouth, 12, cooling water connector, 12-1, water inlet, 12-2, delivery port, 13, powder fairlead, 14, taper laser set, 15, even
Connect disk, 16, baffle vane, 17, main beam convex lens, 18, spectroscope supporting glass plate, 19, gusseted block, 20, spectroscope,
21st, bearings plate, 22, curved mirror, 23, little gear, 24, stepper motor, 25, electric machine support, 26, protection gas be passed through mouth, 27,
Powder inlet ports；
A, main beam cladding head, b, preheating laser head, c, tempering laser head, d, light beam joint, e, main beam, f, preheating light
Beam, g, tempering light beam.
Specific embodiment
As shown in Fig. 1 to Fig. 8, a kind of multi-angle can preheat reversal-flame type laser melting coating head, including：Beam splitting mechanism, beam splitting become
Focusing mechanism, laser scanning follower and laser melting coating mechanism.
The beam splitting mechanism includes：Beam splitting cavity 5, spectroscope 20, spectroscope glass support plate 18, gusseted block 19,
Curved mirror 22 and rotation pivot flange 4；The top of beam splitting cavity 5 in the beam splitting mechanism is provided with rotation pivot flange 4, described
Beam splitting cavity 5 fixed with mode connects for screw with rotation pivot flange 4, and connection angle is unique, rotates 4 times anchor rings of pivot flange
The circle convex platform of circular hole and the tapered portion of beam splitting cavity 5 correspond, i.e. d and θ2Correspond, the rotation pivot flange 4
Six circular holes for installing curved mirror 22 are provided with lower anchor ring；On lower anchor ring it is average be provided with 6 diameters it is identical, away from rotation
Turn the pivot flange center of circle apart from d different circular hole, to be embedded in curved mirror 22.6 on rotation pivot flange 4 lower surface
Circular hole and the interference fit of curved mirror 22.
The beam splitting cavity 5 includes the tapered portion on top and the cylindrical part of bottom；The outer wall of the tapered portion of beam splitting cavity 5
Inclined plane circumferencial direction is evenly equipped with six circle convex platforms；Described spectroscope glass support plate 18 is arranged at the tubular of beam splitting cavity 5
The top in portion；Described spectroscope supporting glass plate 18 is with beam splitting cavity 5 using key positioning, interference fit.
The upper surface of spectroscope glass support plate 18 is provided with spectroscope 20 by gusseted block 19；The spectroscope
It is bonded by certain position by glue special between supporting plate 18, gusseted block 19, the three of spectroscope 20.
The laser scanning follower includes：Gear wheel 2, little gear 23, stepper motor 24, rotation pivot flange 4, light
Beam branch sleeve 1, taper roll bearing 3, bearings plate 21 and electric machine support 25；Described light beam branch sleeve 1 and laser
The input adapter screw of system is connected, and the top of light beam branch sleeve 1 in the laser scanning follower is by motor branch
Frame 25 is provided with stepper motor 24, the described square top and round bottom of light beam branch sleeve 1, described electric machine support 25 and light beam adapter sleeve
Mode connects for screw is used in the plane of cylinder 1 upper end one；Described electric machine support 25 is connected by screw bolts with stepper motor 24；The rotation branch
Staying 4 upper end outer walls of orchid are provided with gear wheel 2, and the gear wheel 2 is connected by little gear 23 with stepper motor 24.
Described little gear 23 transmits torque, the described end face of little gear 23 and stepping electricity with stepper motor 24 by key
The shaft shoulder of machine 24 is contacted, and other end nut is axially tightened；Described little gear 23 passes through gear drive with gear wheel 2；It is described
Gear wheel 2 with rotation the periphery interference fit of pivot flange 4, by be bonded connect realization transmission, the end face of gear wheel 2 with rotation
The shaft shoulder of pivot flange 4 is contacted；The bottom outer wall of the light beam branch sleeve 1 is provided between the bearing hole with rotation pivot flange 4
Taper roll bearing 3, the bottom of light beam branch sleeve 1 is provided with the bearings for carrying spacing taper roll bearing 3
Plate 21.
The lower bearing aperture of described rotation pivot flange 4 has the outer ring interference fit of taper roll bearing 3, rotates pivot flange
4 bearing hole end surface is contacted with the cycle surface of taper roll bearing 3；The described endoporus of taper roll bearing 3 and light beam adapter sleeve
1 time external cylindrical surface interference fit of cylinder；Gravity is leaned in the described inner ring lower surface of taper roll bearing 3 with the upper surface of bearings plate 21
It is in close contact；Described bearings plate 21 uses mode connects for screw with 1 time anchor ring of light beam branch sleeve.
The beam splitting laser head that described beam splitting zoom mechanism is installed as beam splitting cavity 5, it is as shown in Figures 2 and 3, described
Beam splitting zoom mechanism is arranged at the circle convex platform end of beam splitting cavity 5；The beam splitting zoom mechanism includes：Beam splitting concavees lens 6, mirror
Head connection ring 7, lens focusing ring 8, beam splitting camera lens 10 and beam splitting convex lens 9；The beam splitting zoom mechanism is used for each shunt excitation light
Shu Jinhang focuses, and changes focus spot size.
The laser scanning follower by stepper motor 24 drive real-time tracking, realize three focuses (preheating laser beam,
Main beam, tempering laser beam) where plane overlapped with scanning direction, it is ensured that effectively reduce thermograde in a scanning direction, such as
Shown in Fig. 6.
Beam splitting concavees lens 6 in the beam splitting zoom mechanism are arranged at the circle convex platform endoporus of beam splitting cavity 5, and described divides
Each circle convex platform endoporus interference fit of beam concavees lens 6 and beam splitting cavity 5；The circle convex platform end of the beam splitting cavity 5 passes through mirror
Head connection ring 7 is provided with lens focusing ring 8, and described camera lens connection ring 7 uses spiral shell with each circle convex platform endoporus of beam splitting cavity 5
Line is closely connected.
The lens focusing ring 8 is threadedly coupled with camera lens connection ring 7；Lens focusing ring 8 is used with the endoporus of camera lens connection ring 7
Threaded connection, reach is more long, can be adjusted；Rotating lens focusing ring 8 can change beam splitting in beam splitting zoom mechanism
The distance between convex lens 9 and beam splitting concavees lens 6, reach the purpose of the size for changing focus spot, so as to change preheating, tempering
The influence area of light beam and energy density.
The end of lens focusing ring 8 is provided with beam splitting camera lens 10, described beam splitting camera lens 10 and the endoporus of lens focusing ring 8
Closely connected using screw thread；The endoporus of beam splitting camera lens 10 is provided with beam splitting convex lens 9, described beam splitting convex lens 9 and beam splitting
The endoporus of camera lens 10 uses interference fit.
The beam splitting zoom mechanism is changed between beam splitting convex lens 9 and beam splitting concavees lens 6 by rotating lens focusing ring 8
Distance, each shunt excitation light beam is focused, change spot diameter size of the light beam on base material and cladding layer, so as to change pre-
The influence area and energy density of heat and tempering light beam.
Described laser melting coating mechanism is arranged at the cylindrical part bottom of the beam splitting cavity 5；The laser melting coating mechanism includes：
Melting-painting nozzle 11, cooling water connector 12, water inlet 12-1, delivery port 12-2, powder fairlead 13, taper laser cover 14, connect
Connect disk 15, baffle vane 16, protection gas and be passed through mouth 26 and powder inlet ports 27；Same point of the melting-painting nozzle 11 of the laser melting coating mechanism
The bottom of the cylindrical part of beam cavity 5 is connected, and the described lower end of beam splitting cavity 5 is connected with melting-painting nozzle 11 using screw.
When stepper motor 24 is rotated according to scanning Track fusion rotation pivot flange 4, beam splitting cavity 5, adjust spectroscopical
Light splitting angle, and then adjust the angle that beam splitting zoom mechanism is refracted into by curved mirror, it is ensured that preheating, tempering angle on scanning track
The uniformity of degree.
Six centers of circle of the curved mirror 22 are identical apart from d to the center of circle for rotating pivot flange 4.Six beam splitting chambers
The circle convex platform of the tapered portion of body 5 is uniformly distributed in radial cross-section, and constitutes one group two-by-two, longitudinal section circle convex platform axis and water
Square to angle, θ2It is different, to be connected with beam splitting zoom mechanism, form 3 pairs of preheatings, tempering beam splitting camera lens.Described three
The angle, θ of corner supporting block 191It is different.
The tiltangleθ of gusseted block 191, the longitudinal section circle convex platform axis of beam splitting cavity 5 and horizontal direction angle, θ2, rotation
The center of circle d three of 4 lower surface circular distance curved mirror of pivot flange 22 is corresponded, and (D for preheating and is returned to ultimately form different D
Fiery laser beam foucing and primary-beam focus distance in the horizontal plane) so as to influence to preheat and be tempered between the time and cladding between
Every, therefore set three pairs and selected according to different technical parameters for user, one group, two groups or three groups, such as Fig. 5 can be arranged into
Show.
Cladding track program is generated by robot (lathe) programming software according to target trajectory, robot (lathe) control is loaded into
System processed, and instruction is produced to each axle servomotor, so as to realize cladding.Meanwhile, generated by algorithm according to target trajectory and tracked
Track program, is loaded into step motor control system, and produces pulse signal to stepper motor 24, real so as to realize scan tracing
The uniformity of angle is now preheated, is tempered on scanning track, and track flow chart is as shown in Figure 7.
During work, as shown in Figures 2 and 3, light splitting cavity 5 is applied in combination with 6 beam splitting camera lenses 10, and beam splitting mechanism is to parallel
Light beam is divided into the side beam of a master two, and the collimated light beam of laser beam joint d is most vertical through spectroscope glass support plate 18, then
Focused on through main beam convex lens 17 and form main beam cladding powder, a small number of directional lights inject spectroscope 20 and form two through curved mirror 22
Side beam, two side beams include the preheating light beam f and the tempering light beam g to cladding layer temper of pre- hot substrate light beam, secondary light
Beam is provided with 3 pairs of preheatings and tempering laser beam, can realize composition 3 pairs, or selection is used a pair, two pairs or three as needed
It is right.
Main beam e is projected from main beam cladding head a, and preheating light beam f is projected from preheating laser head b, is tempered light beam from tempering
Laser head c is projected.
Multi-angle of the present invention can preheat reversal-flame type laser melting coating head, and beam splitting cavity is embedded with 6 small spectroscopes, right
Sub-fraction in collimated light beam carries out different angle beam splitting, and beam splitting mechanism upper end is connected to laser and sweeps by taper roll bearing
Follower is retouched, laser scanning follower can be in real-time tracking scanning direction under driving stepper motor.6 of beam splitting cavity
Circle convex platform is connected to 6 beam splitting zoom mechanisms, can by rotate focusing ring change beam splitting concavees lens and beam splitting convex lens it
Between distance, so as to change spot size of the shunt excitation light beam on base material and cladding layer.Do not increasing a whole set of laser apparatus
In the case of realize it is multi-faceted base material is preheated, cladding layer is tempered, considerably reduce thermograde, effectively reduce
Because the residual stress caused by the fast hot rapid cooling of single laser beam, crack-sensitivity, tissue odds influence, solve by multiple laser
Head is realized preheating and is tempered that cost is too high, the also limited shortcoming in space.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technology according to the present invention scheme and its
Inventive concept is subject to equivalent or change, should all be included within the scope of the present invention.
Claims (6)
1. a kind of multi-angle can preheat reversal-flame type laser melting coating head, it is characterised in that including：Beam splitting mechanism, beam splitting zoom mechanism,
Laser scanning follower and laser melting coating mechanism；
Beam splitting cavity top in the beam splitting mechanism is provided with rotation pivot flange, the lower anchor ring of the rotation pivot flange
On be provided with six for installing the circular holes of curved mirror；
The beam splitting cavity includes the tapered portion on top and the cylindrical part of bottom；The outer wall inclined plane of the beam splitting cavity tapered portion
Circumferencial direction is evenly equipped with six circle convex platforms；Described spectroscope glass support plate is arranged at the top of beam splitting cavity cylindrical part；
The spectroscope glass support plate upper surface is provided with spectroscope by gusseted block；
Light beam branch sleeve top in the laser scanning follower is provided with stepper motor, the rotation by electric machine support
Turn pivot flange upper end outer wall and be provided with gear wheel, the gear wheel is connected by little gear with stepper motor；
The light beam branch sleeve bottom outer wall is provided with taper roll bearing between the bearing hole with rotation pivot flange, described
Light beam branch sleeve bottom is provided with the bearings plate for carrying spacing taper roll bearing；
Described beam splitting zoom mechanism is arranged at the circle convex platform end of beam splitting cavity；Described laser melting coating mechanism is arranged at institute
State beam splitting cavity cylindrical part bottom；
When driving stepper motor rotates pivot flange, and beam splitting cavity is rotated, and can adjust spectroscopical light splitting angle, and then
Regulation is refracted into the angle of beam splitting zoom mechanism by curved mirror.
2. multi-angle according to claim 1 can preheat reversal-flame type laser melting coating head, it is characterised in that：
Beam splitting concavees lens in the beam splitting zoom mechanism are arranged at the circle convex platform endoporus of beam splitting cavity, the beam splitting cavity circle
Ring convex platform end is provided with lens focusing ring by camera lens connection ring, and the lens focusing ring is threadedly coupled with camera lens connection ring；
The lens focusing ring end is provided with beam splitting camera lens, and the beam splitting camera lens endoporus is provided with beam splitting convex lens.
3. multi-angle according to claim 1 and 2 can preheat reversal-flame type laser melting coating head, it is characterised in that：
The melting-painting nozzle of the laser melting coating mechanism is connected with the bottom of beam splitting cavity cylindrical part.
4. multi-angle according to claim 3 can preheat reversal-flame type laser melting coating head, it is characterised in that：
Six centers of circle of the curved mirror differ to the center of circle for rotating pivot flange apart from d.
5. multi-angle according to claim 3 can preheat reversal-flame type laser melting coating head, it is characterised in that：
The circle convex platform of six beam splitting cavity tapered portion is uniformly distributed in radial cross-section, and constitutes one group, vertical section two-by-two
Face circle convex platform axis and horizontal direction angle, θ2It is different.
6. multi-angle according to claim 3 can preheat reversal-flame type laser melting coating head, it is characterised in that：
The gusseted block angle, θ1It is different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710239927.4A CN106862756B (en) | 2017-04-13 | 2017-04-13 | Multi-angle can preheat reversal-flame type laser melting coating head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710239927.4A CN106862756B (en) | 2017-04-13 | 2017-04-13 | Multi-angle can preheat reversal-flame type laser melting coating head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106862756A true CN106862756A (en) | 2017-06-20 |
| CN106862756B CN106862756B (en) | 2018-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710239927.4A Expired - Fee Related CN106862756B (en) | 2017-04-13 | 2017-04-13 | Multi-angle can preheat reversal-flame type laser melting coating head |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN111058030A (en) * | 2019-12-20 | 2020-04-24 | 东南大学 | Preheating and tempering laser cladding head with beam splitter and processing method |
| CN111139469A (en) * | 2020-01-15 | 2020-05-12 | 河北光束激光科技有限公司 | Water-cooled cladding head |
| CN111286732A (en) * | 2020-02-24 | 2020-06-16 | 厦门大学 | Efficient laser cladding head capable of self-preheating powder feeding in hollow light |
| CN112159978A (en) * | 2020-08-27 | 2021-01-01 | 东南大学 | Center powder feeding type cladding head capable of preheating and tempering |
| CN113293371A (en) * | 2021-05-28 | 2021-08-24 | 武汉飞能达激光技术有限公司 | Laser cladding method based on step tempering |
| CN117182305A (en) * | 2023-10-25 | 2023-12-08 | 广东东博智能装备股份有限公司 | Uninterrupted welding equipment for button cells |
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| CN110438494B (en) * | 2019-09-10 | 2024-04-09 | 淮浙煤电有限责任公司凤台发电分公司 | Laser cladding equipment for bottom end face of inner hole of metal part |
| CN111058030A (en) * | 2019-12-20 | 2020-04-24 | 东南大学 | Preheating and tempering laser cladding head with beam splitter and processing method |
| CN111139469A (en) * | 2020-01-15 | 2020-05-12 | 河北光束激光科技有限公司 | Water-cooled cladding head |
| CN111286732A (en) * | 2020-02-24 | 2020-06-16 | 厦门大学 | Efficient laser cladding head capable of self-preheating powder feeding in hollow light |
| CN112159978A (en) * | 2020-08-27 | 2021-01-01 | 东南大学 | Center powder feeding type cladding head capable of preheating and tempering |
| CN112159978B (en) * | 2020-08-27 | 2022-09-02 | 东南大学 | Center powder feeding type cladding head capable of preheating and tempering |
| CN113293371A (en) * | 2021-05-28 | 2021-08-24 | 武汉飞能达激光技术有限公司 | Laser cladding method based on step tempering |
| CN113293371B (en) * | 2021-05-28 | 2023-02-28 | 武汉飞能达激光技术有限公司 | Laser cladding method based on step tempering |
| CN117182305A (en) * | 2023-10-25 | 2023-12-08 | 广东东博智能装备股份有限公司 | Uninterrupted welding equipment for button cells |
| CN117182305B (en) * | 2023-10-25 | 2024-02-06 | 广东东博智能装备股份有限公司 | Uninterrupted welding equipment for button cells |
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