CN209363853U - Water jet auxiliary laser system of processing - Google Patents
Water jet auxiliary laser system of processing Download PDFInfo
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- CN209363853U CN209363853U CN201920033033.4U CN201920033033U CN209363853U CN 209363853 U CN209363853 U CN 209363853U CN 201920033033 U CN201920033033 U CN 201920033033U CN 209363853 U CN209363853 U CN 209363853U
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Abstract
The utility model discloses a kind of water jet auxiliary laser systems of processing; its beam Propagation focusing unit includes laser emitter and beam propagation and transformation mechanism; 45 ° of inclined reflective mirrors are arranged in the front of laser emitter; beam propagation and transformation mechanism below reflective mirror includes protection sleeve pipe, and it is interior equipped with self-focusing lens and globe lens that beam propagation and transformation element, lower part pore are equipped in the top pore of protection sleeve pipe；Its countertop unit is set to below protection sleeve pipe, the workbench including three-dimensional regulation, and stationary platen is set in the sink on workbench, and clamping workpiece is on stationary platen and opposite with globe lens；The pump line of its liquid-supply unit is connected to jet pipe, and the nozzle of jet pipe is tiltedly stretched to workpiece, and the jet pipe of the oblique hade degree of adjustable nozzles is set on three-dimensional and angular adjustment jet pipe adjusting bracket, and sink is connected to liquid-supply unit by return pipe.The utility model reduces laser beam in the light path of free space transmission, reduces interference of the water jets impact sputtering to optic path.
Description
Technical field
The utility model relates to laser processing technology, specially a kind of water jet auxiliary laser system of processing.
Background technique
Conventional laser processing technology be using laser generate high-energy density make workpieces processing position generate phase transformation melting,
Vaporization is to remove local ob；However, in laser processing procedure, since high-energy-density can promote the workpiece after processing to generate hot shadow
Area, residue, micro-crack etc. are rung, the surface quality and mechanical property of workpiece after processing are seriously affected.
Water jet assisted laser machining increases in laser irradiation workpiece, workpiece local heating temperature, localized hyperthermia
While material softening, mechanical strength decline, using the laser heat affected zone on a branch of liquid jet impact workpiece, jet stream institute is utilized
Generation impact force removal laser melting during mechanical strength reduce material and complete the processing to workpiece.Further, since
In water jet auxiliary laser process, using the cooling effect of water jet, heat loss through convection can be accelerated, high-speed jet impact adds
Ministry of worker position, cools down machining area rapidly in a short time, can reduce workpieces processing
Thermal damage.The processing of water jet auxiliary laser is small with heat affected area compared with conventional laser processing, micro-crack is few and surface slag
The features such as few.
Although water jet assisted laser machining has above-mentioned advantage, existing water jet auxiliary laser process
In there is also following notable defects:
1, during workpieces processing, laser beam focus is focused the system using traditional single convex lens, is focused
Since focal length is larger in journey, the light path that light beam is exposed to free space to workpieces processing surface from lens focus end face is too long, holds
Easily cause the instability in light beam focusing.
2, since high-speed water jet impacts workpiece surface, jet stream makes jet stream rebound to the impact force of workpiece, splashes, formed
Drop be further crushed, be atomized and form water mist, the drop and water beam that this process is formed can absorb the energy of laser, can also make
Laser beam generates deviation and scattering, reduces the utilization rate of laser energy, influences the processing quality of workpiece.
The shortcomings that for jet stream sputtering, is also had and proposes to be reduced the influence that jet stream sputters using side blowing method, but by
It is stronger in the impact force of workpiece surface in jet action, the auxiliary blow gas pressure for needing to match, for scavenger system pressure
Design also have certain difficulty；Also prevent drop from sputtering and being atomized to light using splashproof injection device except this, in some designs
The influence of beam transmission, but since traditional single convex lens focused light passages are too long, the light beam overwhelming majority exposes in free space, in light
Beam, which focuses injection part steric hindrance, certain difficulty every spattered droplets and fog.
The characteristics of analyzing existing water jet assisted laser machining makes since optical path is too long in light beam focusing
Light beam overwhelming majority light beam is exposed to free space, in addition the resistance such as liquid splash, atomization that water jets impact workpiece surface generates
The stability in beam energy transmission utilization ratio and its transmission is hindered.
Utility model content
For the defect of existing water jet auxiliary laser technology, the utility model proposes a kind of water jet auxiliary lasers to add
Work system makes water jet auxiliary laser technology preferably apply and develop to eliminate the obstruction of the prior art.
The utility model water jet auxiliary laser system of processing, technical solution include beam Propagation focusing unit, work
Platform unit and liquid-supply unit, except that:
1, the beam Propagation focusing unit includes laser emitter, reflective mirror and beam propagation and transformation mechanism, described to swash
45 ° of inclined reflective mirrors are arranged in the front of optical transmitting set, and the beam propagation and transformation mechanism below reflective mirror includes protective case
It manages, beam propagation and transformation element is equipped in the top pore of the protection sleeve pipe, is equipped in the lower part pore of protection sleeve pipe by certainly
The laser focus pack that condenser lens and globe lens are constituted.
2, the countertop unit is set to below beam propagation and transformation mechanism, including can be carried out X/Y/Z to movement (three-dimensional tune
Section) workbench, stationary platen is set in the sink on workbench, clamping workpiece in opposite on stationary platen and with globe lens and
It is located at laser focus point on workpiece surface.
3, the pump line of the liquid-supply unit is connected to jet pipe, and the nozzle of the jet pipe is tiltedly stretched to workpiece, the nozzle centerline
With protection sleeve pipe axis co-planar, the jet pipe of the oblique hade degree of adjustable nozzles be set to can be carried out X/Y/Z to movement (three-dimensional regulation) and
On the jet pipe adjusting bracket of angular adjustment.
4, the sink is connected to liquid-supply unit by return pipe.
Inverted monocular can be used in the beam propagation and transformation element.
Angle between the nozzle centerline and protection sleeve pipe axis selects between 30 °~60 °.
The jet pipe adjusting bracket is used to adjust the relative position of nozzle and focus on light beam and workpiece, and jet expansion forms water-jet
Stream impact workpieces processing surface, carries out the removal of melting residue and cooling.
The preferred parameter of processing are as follows:
The globe lens is selected as 40um~120um at a distance from workpiece surface, and the bore of the nozzle is selected as 0.1mm
~0.7mm, the water jet speed that nozzle sprays are selected as 10m/s~50m/s, and the export center of nozzle is at a distance from workpiece surface
It is selected as 5mm~30mm, the center line of the water jet and the intersection point of workpiece surface and laser focuses on the light on workpiece surface
The distance between spot is selected as 0~5mm.
The utility model has the beneficial effects that
In the utility model water jet auxiliary laser system of processing, the laser that laser emitter generates leads in protection sleeve pipe
It crosses beam propagation and transformation element and self-focusing lens and globe lens carries out transmission focusing, reduce light beam in the free space of air
The light path of transmission after focusing by globe lens, on the one hand reduces the interference that water jets impact makes liquid splash to optic path,
Keep beam Propagation more stable, improves the capacity usage ratio of laser beam；On the other hand, saturating by beam propagation and transformation and self-focusing
The transmission of mirror can change the quality of light beam, and then improve the quality of laser processing；In addition, laser beam is focused by globe lens,
Its lower surface camber endpoint can be purged surface generated in laser processing procedure slag, and cold by the impact of water jet
But effect carries out the further removal and the cooling of workpiece of residue in workpieces processing, can improve the quality of workpieces processing.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of embodiment of the utility model.
Fig. 2 is the enlarged drawing in Fig. 1 at A.
Figure number mark: 1, liquid-supply unit；2, laser emitter；3, reflective mirror；4, protection sleeve pipe；5, self-focusing lens；6,
Globe lens；7, workbench；8, workpiece；9, stationary platen；10, sink；11, jet pipe；12, jet pipe adjusting bracket；13, nozzle；14, light
Beam propagation and transformation element；15, controller；16, filling member.
Specific embodiment
Illustrated embodiment is described further the technical solution of the utility model with reference to the accompanying drawing.
The utility model water jet auxiliary laser system of processing, including beam Propagation focusing unit, countertop unit and confession
Liquid unit 1.
The beam Propagation focusing unit includes laser emitter 2, reflective mirror 3 and beam propagation and transformation mechanism, by controlling
The left front for the laser emitter 2 that device 15 manipulates is provided with 45 ° of inclined reflective mirrors 3, and (mirror surface of reflective mirror 3 is towards Laser emission
Device 2), the beam propagation and transformation mechanism is set to the lower section of reflective mirror 3, and the vertical shape protection sleeve pipe 4 including fixed setting is described
Beam propagation and transformation element 14 (inverted monocular), protection sleeve pipe 4 are coaxially provided in the big pore in the top of protection sleeve pipe 4
Lower part the laser focus pack being made of self-focusing lens 5 (upper) and globe lens 6 (bottom), institute are coaxially equipped in small pore
Globe lens 6 is stated to expose outside small pore and by the fixed position of filling member 16, as shown in Figure 1 and Figure 2.
The countertop unit is set to beam propagation and transformation mechanism, that is, globe lens 6 lower section, including can be carried out X/Y/Z to shifting
Dynamic workbench 7, the workbench 7 are equipped with the sink 10 with return pipe, are provided with stationary platen 9, institute in the sink 10
Stating clamping on stationary platen 9 has workpiece 8, and the workpiece 8 and 6 face of globe lens, the height for adjusting workbench 7 make laser focus point
On 8 surface of workpiece, workbench 12 on horizontal plane mobile realization and machining path follow, as shown in Figure 1 and Figure 2.
The liquid-supply unit 1 includes the water tank set on 7 lower right-hand side of workbench, is beam propagation and transformation mechanism above water tank
Right side be equipped with and can be carried out X/Y/Z to mobile and angular adjustment jet pipe adjusting bracket 12, be equipped on the jet pipe adjusting bracket 12
Jet pipe 11, the conical nozzle 13 (coaxial with jet pipe 11) at the 11 lower-left end of jet pipe tiltedly extend to the top of workpiece 8, the nozzle 13
The water jet center line of the injection and axis of protection sleeve pipe 4 is coplanar and included angle B between the two can be adjusted between 30 °~60 °,
The upper right side of jet pipe 11 passes through pump line joining water box water outlet, return pipe (being provided with filter screen) the joining water box water inlet
Mouthful, as shown in Figure 1 and Figure 2.
In above structure, the laser beam that laser emitter 2 generates is vertical direction, reflection after being reflected by reflecting mirror 3
Laser beam first pass through the transformation of beam propagation and transformation element 14, carry out preliminary focusing using self-focusing lens 5 and transmit, then
The focusing of laser beam is carried out by globe lens 6, focal beam spot drop point is on 8 surface of workpiece.
A kind of machined parameters range of choice of embodiment are as follows:
The globe lens 6 is set as 40um~120um (as back focal length of globe lens 6 with 8 surface distance H2 of workpiece
BFL), the bore of the nozzle 13 is set as 0.1mm~0.7mm, and the water jet speed that nozzle 13 sprays is set as 10m/s~50m/s,
The export center of nozzle 13 is set as 5mm~30mm, 8 table of center line and workpiece of the water jet with 8 surface distance H1 of workpiece
The distance between the hot spot point that the intersection point and laser in face focus on 8 surface of workpiece W is set as 0~5mm, as shown in Figure 2.
The back focal length BFL (40um~120um) of the globe lens 6 determines the selection of 6 diameter of globe lens and material, BFL
Calculation formula be(wherein D is the diameter of globe lens 6, and n is the refractive index of globe lens 6).
Using hardness, harder, ranges of indices of refraction makes the globe lens 6 in 1.5~1.9 transparent material, it is preferred to use oxygen
Change sapphire globe lens 6 made of aluminum material, the diameter control of globe lens 6 is in 0.3mm~1mm.
The diameter of the self-focusing lens 5 is selected as 0.5~2mm, and length is selected as 0.5~3mm, is made of glass.
The protocol step of the utility model water jet auxiliary laser system of processing workpieces processing 8 are as follows:
1, workpiece 8 is clamped on stationary platen 9.
2, it opens liquid-supply unit 1 and is supplied water by pump line to jet pipe 11, after the water jet of nozzle 13 is stablized, open control
The laser generator 2 that device 15 manipulates.
3,7 height of workbench is adjusted, the hot spot for focusing laser is fallen on the surface of workpiece 8.
It 4, is the water-jet flow angle of nozzle 13 and the position for adjusting the outlet of nozzle 13 by 12 adjustable jet tube 11 of jet pipe adjusting bracket
It sets.
5, it carries out laser to process the operation of workpiece 8, in process, workbench 7 is carried out corresponding by processing program
Mobile, the slag that the water jet that nozzle 13 sprays generates processing is washed away and is cooled down to workpiece 8.
6, reflux liquid-supply unit 1 after the dreg liquid formed in process is collected by sink 10 and filtered by return pipe.
Claims (5)
1. water jet auxiliary laser system of processing, including beam Propagation focusing unit, countertop unit and liquid-supply unit (1),
It is characterized in that:
The beam Propagation focusing unit includes laser emitter (2), reflective mirror (3) and beam propagation and transformation mechanism, described to swash
45 ° of inclined reflective mirrors (3) are arranged in the front of optical transmitting set (2), the beam propagation and transformation mechanism packet being set to below reflective mirror (3)
It includes protection sleeve pipe (4), is equipped with beam propagation and transformation element (14) in the top pore of the protection sleeve pipe (4), protection sleeve pipe (4)
Lower part pore in be equipped with the laser focus pack that is made of self-focusing lens (5) and globe lens (6)；
The countertop unit is set to below beam propagation and transformation mechanism, including can be carried out X/Y/Z to mobile workbench (7),
Stationary platen (9) is set in the sink (10) on workbench (7), and workpiece (8) is clamped on stationary platen (9) and and globe lens
(6) it is located at laser focus point on workpiece (8) surface relatively；
The pump line of the liquid-supply unit (1) is connected to jet pipe (11), and the nozzle (13) of the jet pipe (11) is tiltedly stretched to workpiece (8), institute
Nozzle (13) center line and protection sleeve pipe (4) axis co-planar are stated, the jet pipe (11) of the oblique hade degree of adjustable nozzles (13) is set to energy
X/Y/Z is carried out on mobile and angular adjustment jet pipe adjusting bracket (12)；
The sink (10) is connected to liquid-supply unit (1) by return pipe.
2. water jet auxiliary laser system of processing according to claim 1, it is characterised in that: the beam propagation and transformation member
Part (14) is inverted monocular.
3. water jet auxiliary laser system of processing according to claim 1, it is characterised in that: nozzle (13) center line
Angle between protection sleeve pipe (4) axis is 30 °~60 °.
4. water jet auxiliary laser system of processing according to any one of claims 1 to 3, it is characterised in that: described
Jet pipe adjusting bracket (12) is used to adjust the relative position of nozzle (13) and focus on light beam and workpiece (8), and nozzle (13) outlet is formed
Water jets impact workpieces processing surface carries out the removal of melting residue and cooling.
5. water jet auxiliary laser system of processing according to any one of claims 1 to 3, it is characterised in that: described
Globe lens (6) is 40um~120um at a distance from workpiece (8) surface, and the bore of the nozzle (13) is 0.1mm~0.7mm, spray
The water jet speed that mouth (13) sprays is 10m/s~50m/s, and the export center of nozzle (13) is at a distance from workpiece (8) surface
5mm~30mm, the intersection point and laser on center line and workpiece (8) surface of the water jet focus on the light on workpiece (8) surface
The distance between spot is 0~5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920033033.4U CN209363853U (en) | 2019-01-09 | 2019-01-09 | Water jet auxiliary laser system of processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920033033.4U CN209363853U (en) | 2019-01-09 | 2019-01-09 | Water jet auxiliary laser system of processing |
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| Publication Number | Publication Date |
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| CN209363853U true CN209363853U (en) | 2019-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920033033.4U Expired - Fee Related CN209363853U (en) | 2019-01-09 | 2019-01-09 | Water jet auxiliary laser system of processing |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109514078A (en) * | 2019-01-09 | 2019-03-26 | 桂林电子科技大学 | Water jet auxiliary laser system of processing and method |
| CN112705839A (en) * | 2020-12-31 | 2021-04-27 | 桂林电子科技大学 | Water-guided laser device based on positioning coupling |
| CN113290386A (en) * | 2021-05-10 | 2021-08-24 | 长春理工大学 | Laser/ultrasonic composite low-damage complex microstructure machining device and method for stable flow area |
-
2019
- 2019-01-09 CN CN201920033033.4U patent/CN209363853U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109514078A (en) * | 2019-01-09 | 2019-03-26 | 桂林电子科技大学 | Water jet auxiliary laser system of processing and method |
| CN112705839A (en) * | 2020-12-31 | 2021-04-27 | 桂林电子科技大学 | Water-guided laser device based on positioning coupling |
| CN112705839B (en) * | 2020-12-31 | 2024-05-28 | 桂林电子科技大学 | Water guide laser device based on positioning coupling |
| CN113290386A (en) * | 2021-05-10 | 2021-08-24 | 长春理工大学 | Laser/ultrasonic composite low-damage complex microstructure machining device and method for stable flow area |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190910 Termination date: 20200109 |