CN209349685U - Water Jet Guided Laser processing unit (plant) - Google Patents
Water Jet Guided Laser processing unit (plant) Download PDFInfo
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- CN209349685U CN209349685U CN201822227155.5U CN201822227155U CN209349685U CN 209349685 U CN209349685 U CN 209349685U CN 201822227155 U CN201822227155 U CN 201822227155U CN 209349685 U CN209349685 U CN 209349685U
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- chamber
- water
- laser head
- liquid layer
- coupling
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Abstract
The utility model discloses a kind of Water Jet Guided Laser processing unit (plant)s, its beam Propagation coupling unit include laser head with the turnbarrel being connected, enter water chamber, middle chamber, coupling block, laser head top is coaxially combined on turnbarrel, laser head lower part is placed in water chamber and middle chamber and corresponds to the liquid layer chamber opened up on coupling block, optical beam transformation bottom of chamber portion in laser head lower part is equipped with self-focusing lens and globe lens, and globe lens is opposite by the nozzle opened up on liquid layer chamber and coupling block；The high pressure water of its high pressure liquid-supply unit output comes together in liquid layer chamber after being entered three level shunt of water chamber, middle chamber and coupling block and forms low pressure current stabilization water；Its countertop unit is set to below nozzle, the workbench including three-shaft linkage, and the clamping stationary platen of workpiece is set on workbench by sink, and sink is connected to high pressure feed flow module by return pipe.The utility model improves the transmission stability of light beam, reduces the difficulty that focus on light beam coupling water beam optical fiber is adjusted.
Description
Technical field
The utility model relates to Water Jet Guided Laser processing equipment unit, specially a kind of Water Jet Guided Laser processing unit (plant).
Background technique
Water Jet Guided Laser processing method is focused on laser inside thin water beam, when focus on light beam meets being all-trans for water beam optical fiber
When penetrating critical angle, total reflection occurs inside water beam and along the surface of water beam spread fiber to workpiece to be processed for laser, and laser is burnt
It loses thin water beam impact workpiece removal material while workpiece surface and completes cutting processing.
In Water Jet Guided Laser process, the water beam optical fiber very little that laser and thin water beam are formed will not be because of conventional laser light beam
It dissipates and Real-time Focusing need to be carried out, improve the depth of workpieces processing；In addition, micro- water jet has certain impact and cooling effect
It answers, thus Water Jet Guided Laser processing realizes micro-damage cutting, and water beam can wash away melt substance and chip caused by laser,
Keep processing section smooth, without apparent re cast layer, significantly improves processing quality.Obviously, in Precision Machining field, water is led
Many excellent characteristics of laser processing are with huge application prospect, but existing Water Jet Guided Laser processing unit (plant) has one
A apparent defect: after laser is focused by condenser lens and water beam couples difficulty, limits the industrial applications of this technology.
In existing Water Jet Guided Laser processing unit (plant), laser beam is focused onto water cavity nozzle micropore by condenser lens
The heart is coupled into the micro- water column of low pressure of nozzle generation.Micro- water column guides laser beam by the total reflection at interface between water and air
Reach workpiece surface, while laser heats and softens work pieces process region material, the high speed water jet impact of water column removes softening
The material in region and strengthen cooling effect.
In existing Water Jet Guided Laser technology, light beam focuses on jet hole by water layer in condenser lens and water cavity and carries out water beam
Fiber coupling, for light in transmission focusing, transmission focuses that light path is too long, focusing is unstable, light beam focusing
Middle calculating adjusts complicated, and focus on light beam is of poor quality so that coupling efficiency reduces, thereby result in coupling adjust it is difficult, light beam with
Nozzle center's centering slightly deviation will burn out nozzle, on the one hand coupled transfer be made to fail, and become nozzle easily
Wearing detail limits the popularization and industrial application of Water Jet Guided Laser technology.
Utility model content
In view of the deficiencies of the prior art, the technical problem to be solved by the utility model is to propose a kind of raising couplings to imitate
The Water Jet Guided Laser processing unit (plant) of rate.
It is able to solve the Water Jet Guided Laser processing unit (plant) of above-mentioned technical problem, technical solution includes that beam Propagation coupling is single
Member, countertop unit and high pressure liquid-supply unit, except that:
1, the beam Propagation coupling unit includes laser head, turnbarrel, enters water chamber, middle chamber and coupling block,
The turnbarrel enters water chamber, middle chamber and is sequentially coaxially connected from top to bottom with coupling block, the top of the laser head
(thread segment) is coaxially combined on turnbarrel, and the lower part of laser head is coaxially placed in into water chamber and middle chamber and corresponding to coupling
The liquid layer chamber opened up on block is closed, the optical beam transformation bottom of chamber portion in laser head lower part is equipped with self-focusing lens and globe lens or self-focusing
Lens and globe lens fuse the self-focusing end spherical lens to be formed, and the globe lens or self-focusing end spherical lens pass through liquid layer chamber
Opposite with the spout coaxially opened up on coupling block, the nozzle of the spout is connected to liquid layer chamber.
2, the stepless pressure regulation high pressure water of the high pressure liquid-supply unit output is entered water chamber, middle chamber and coupling block three-level
Liquid layer chamber is come together in after shunting forms low pressure current stabilization water.
3, the countertop unit is set to below spout, the workbench including three-shaft linkage, the clamping stationary platen of workpiece
It is set on workbench by sink, the jet impulse water reflux high pressure liquid-supply unit that sink is accepted.
4, the top of the laser head connects laser generator.
One kind entering water chamber, middle chamber and three level shunt of coupling block and collects scheme are as follows: enters in water chamber and coaxially offers
Annular water chamber, annular water chamber side circumference uniform distribution offer 2~6 radial water inlets being passed through for stepless pressure regulation high pressure water
Mouthful, annular water chamber lower circumference uniformly offers 4~8 axial diffluence pass, corresponds to each diffluence pass in middle chamber and coupling
Upper and lower flowing hole is opened up inside block respectively, the lower flowing hole is connected to by corresponding radial overflow hole with liquid layer chamber.
Further, the liquid layer chamber be formed in coupling block and middle chamber and laser head lower bottom end and choked flow cone column it
Between, the choked flow cone column, which coincide, is set in laser head lower part (playing lower guiding role) and obstruction in the taper hole of middle chamber；
It is described enter water chamber at the top of be equipped with the spoiler of closed ring water cavity, the spoiler, which coincide, to be set in laser head lower part and (plays
Upper guiding role).
In order to facilitate observation of, circumference uniform distribution is provided with visual windows on the turnbarrel.
The utility model has the beneficial effects that
1, the utility model utilizes the up and down displacements fine adjustment liquid layer chamber water layer thickness of laser head, improves grasping for water layer
Control property and controllability.
2, the utility model carries out light beam using the combination of self-focusing lens and globe lens or self-focusing end spherical lens
Transformation transmission focuses, and improves the coupling efficiency of beam Propagation focusing quality and light beam and water beam optical fiber, reduces light beam focusing
Light beam improves the transmission stability of light beam in the light path of free space in transmission process, reduces focus on light beam coupling water beam
The difficulty that optical fiber is adjusted.
3, the utility model is using self-focusing lens and globe lens double focusing design, it can be achieved that the effect of more small spot processing
Fruit.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of embodiment of the utility model.
Fig. 2 is the structural schematic diagram of beam Propagation coupling module in Fig. 1 embodiment.
Fig. 3 is the partial enlarged view of liquid layer chamber peripheral part in Fig. 2.
Fig. 4 is the A-A cross-sectional view in Fig. 2.
Fig. 5 is the B-B cross-sectional view in Fig. 4.
Figure number mark: 1, laser head；2, turnbarrel；3, enter water chamber；4, middle chamber；5, coupling block；6, liquid layer chamber；
7, optical beam transformation chamber；8, self-focusing lens；9, globe lens；10, nozzle；11, high pressure liquid-supply unit；12, workbench；13, workpiece；
14, clamping stationary platen；15, sink；16, column is bored in choked flow；17, spoiler；18, beam Propagation coupling unit；19, annular water
Chamber；20, water inlet；21, visual windows；22, diffluence pass；23, upper flowing hole；24, lower flowing hole；25, overflow hole；26, laser
Generator.
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 Guided Laser processing unit (plant), structure include beam Propagation coupling unit 18, countertop unit and
High pressure liquid-supply unit 11, the countertop unit are set to 18 lower section of beam Propagation coupling unit, and the high pressure liquid-supply unit 11 is set
By 18 side of countertop unit and beam Propagation coupling unit, as shown in Figure 1.
The beam Propagation coupling unit 18 includes laser head 1, turnbarrel 2, enters water chamber 3, middle chamber 4 and coupling
Block 5, the turnbarrel 2 enter water chamber 3 (including upper and lower two parts) and middle chamber 4 sequentially coaxially connects from top to bottom,
Fine thread hole is coaxially offered on the partial thickening position at 2 top of turnbarrel, circumference uniform distribution four on turnbarrel 2
Visual windows 21,5 top of coupling block are coaxially combined in the bottom of middle chamber 4, and the top of coupling block 5 offers coaxially
Liquid layer chamber 6,3 upper top of water chamber that enters in the turnbarrel 2 is coaxially provided with spoiler 17, the middle chamber 4
It is fitted with the lower part of choked flow cone column 16 in the taper hole of center, the top of choked flow cone column 16 is axially limited in entering in 3 lower part of water chamber
It is located at into 3 top of water chamber, the lower bottom end of choked flow cone column 16 flushes in 4 bottom of middle chamber and diameter is less than liquid layer chamber 6
Diameter, the spoiler 17, enter 3 top of water chamber, choked flow cone column 16 on coaxially offer through-hole；The laser head 1 includes same
The top closely-pitched male thread portion and lower part smooth bar part of axis, 1 top of laser head connecting with laser generator 26 are combined on
In the threaded hole of rotaring sleeve 2,1 lower part polished rod of laser head be arranged in spoiler 17, enter 3 top of water chamber, choked flow cone column 16 it is logical
Kong Zhong, wherein the through-hole of polished rod and spoiler 17, choked flow cone column 16, which coincide, forms 1 upper and lower position of laser head adjusting (rotation rotation
Rotaring sleeve 2) upper and lower guiding pair, offer coaxial optical beam transformation chamber 7, the optical beam transformation chamber inside the polished rod of laser head 1
Self-focusing lens 8 and globe lens 9 (can also be fused and be formed to self-focusing lens 8 and globe lens 9 is had by 7 bottoms
Self-focusing end spherical lens substitution, position of the self-focusing end spherical lens in cavity and 9 phase of self-focusing lens 8 and globe lens
Together), the globe lens 9 or self-focusing end spherical lens are concordantly in the polished rod bottom of laser head 1；It is described enter water chamber 3 top
Coaxial annular water chamber 19 (circle diameter is less than spoiler 17) is inside offered, the 19 side circumference uniform distribution of annular water chamber opens up
There are 2~6 radial water inlets 20 (preferably 6), is opened up corresponding to annular water chamber 19 in circumference uniform distribution on the lower part for entering water chamber 3
There are 4~8 axial diffluence pass 22 (preferably 8), opens up axial upper flowing hole inside middle chamber 4 corresponding to each diffluence pass 22
23, axial lower flowing hole 24 is opened up inside coupling block 5, corresponding upper and lower flowing hole 23,24 is connected, lower flowing hole 24 in
In 6 periphery of liquid layer chamber inside coupling block 5, each lower flowing hole 24 is connected to liquid layer chamber 6, coupling by corresponding radial overflow hole 25
5 bottom of block offers coaxial spout, the coaxial nozzle 10 of the spout-top be connected to liquid layer chamber 6 and with globe lens 9 or self-focusing
Spherical lens face is held, as shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5.
The countertop unit includes the horizontal table 12 on triaxial connecting system, the movement of the workbench 12
Range corresponds to the nozzle 10 of top, and the workbench 12 is equipped with sink 15, is provided with fixed clamping work in the sink 15
The clamping stationary platen 14 of part 13,15 bottom of sink are equipped with the return pipe with strainer；Two dimension of the workbench 12 in horizontal plane
Movement is realized to be followed with machining path, and workbench 12 can be focused and water jet water layer thickness in the lifting of vertical direction
Fine adjustment, as shown in Figure 1.
The high pressure liquid-supply unit 11 includes water tank, and the return pipe joining water box of the sink 15 is set on the return pipe
There is strainer, high pressure water is entered water chamber 3 from the pump of water inlet 20, is provided with accumulator on the pump line by the pump line of the water tank,
The electrodeless transformation of high pressure water can be achieved, as shown in Figure 1.
The processing method of the utility model Water Jet Guided Laser processing unit (plant), including following procedures step:
1, workpiece 13 is in place in clamping on clamping stationary platen 14.
2, workbench 12 is run to suitable Working position.
3, starting high pressure liquid-supply unit 11, which connects the high pressure water of electrodeless transformation from 6 water inlets 20, enters water chamber 3, high
Pressure water flow enters flowing hole 23 in each correspondence of middle chamber 4 by entering 8 diffluence pass 22 inside water chamber 3, and water flow passes through
The water flow that each upper flowing hole 23 is circulated in corresponding 24, the 8 lower flowing holes 24 of lower flowing hole in the inside of coupling block 5 passes through pair respectively
The overflow hole 25 answered enters liquid layer chamber 6, and high pressure water flow passes through after above-mentioned three level shunt the formation low pressure current stabilization water in liquid layer chamber 6,
Low pressure current stabilization water, which sprays downwards through nozzle 10 from spout, forms water beam optical fiber.
4, starting laser generator 26 issue laser beam, laser beam in laser head 1 through optical beam transformation chamber 7 transmission after by from
Condenser lens 8 and globe lens 9 or the self-focusing end spherical lens of fusion are focused transmission, and laser beam passes through thin in liquid layer chamber 6
It is focused after water layer and reaches nozzle 10, laser beam enters in the water beam optical fiber that nozzle 10 is formed in the case where meeting total reflection condition to be passed
13 surface of workpiece is reached after leading.
Different-thickness thin water layer is adjusted by rotation turnbarrel 2 in the liquid layer chamber 6, positive and negative rotation rotation
When sleeve 2, the lower part of laser head 1 can enter and exit liquid layer chamber 6, to reach the adjusting of liquid layer thickness in liquid layer chamber 6.
5, workbench 12 drives workpiece 13 to make planar movement or spatial three-dimensional movement, cooperation under processing program control
Laser beam completes the cutting processing to workpiece 13, and 13 surfacing of hot mastication workpiece of laser beam, water beam is cooling at the same time
Machining area and reduce thermal damage.
6, the fusant and jet impulse water formed during cutting processing enters sink 15, passes through after filter screen filtration
The water tank of return pipe reflux high pressure liquid-supply unit 11.
From above-described embodiment it can be seen that
The utility model is utilized turnbarrel 2 and carries out liquid layer thickness adjusting compared with existing Water Jet Guided Laser processing method,
Improve the operability and controllability of liquid layer control.
The utility model carries out light beam using the combination of self-focusing lens 8 and globe lens 9 or self-focusing end spherical lens
Transformation transmission focuses, and improves the coupling efficiency of beam Propagation focusing quality and light beam and water beam optical fiber, reduces light beam focusing
Distance, and reduce light beam in light beam focusing transmission process and improve the transmission stability of light beam in the light path of free space, drop
The difficulty that low focus on light beam coupling water beam optical fiber is adjusted.
Realize that the transmission of light beam focuses that (defect is that lens sizes are big, focuses using single convex lens compared to the prior art
Optical length is unfavorable for installation and adjustment), the utility model can reduce coupled transfer space, the focusing quality for improving light beam, reduce
The stability for focusing light path, guaranteeing beam Propagation of transmitting beam reduces the difficulty that coupling is adjusted；In addition, passing through fine tuning energy conservation
The control for enough realizing 6 water layer thickness of liquid layer chamber, improves the operability and controllability of liquid layer.
Above-described embodiment is only further described the purpose of this utility model, technical scheme and beneficial effects
Specific case, the utility model are not limited to this；All any modifications made within the scope of disclosed by the utility model, etc.
With replacement, improvement etc., it is included in the protection scope of the present invention.
Claims (4)
1. Water Jet Guided Laser processing unit (plant), including beam Propagation coupling unit (18), countertop unit and high pressure liquid-supply unit (11),
It is characterized by:
The beam Propagation coupling unit (18) includes laser head (1), turnbarrel (2), enters water chamber (3), middle chamber (4)
With coupling block (5), the turnbarrel (2), to enter water chamber (3), middle chamber (4) and coupling block (5) successively same from top to bottom
Axis is connected, and the top of the laser head (1) is coaxially combined on turnbarrel (2), and the lower part of laser head (1) is coaxially placed in into water cavity
In body (3) and middle chamber (4) and correspond to the liquid layer chamber (6) opened up on coupling block (5), the light beam in laser head (1) lower part
Convert what chamber (7) bottom was formed equipped with self-focusing lens (8) and globe lens (9) or self-focusing lens (8) and globe lens (9) fusion
Self-focusing end spherical lens, the globe lens (9) or self-focusing end spherical lens pass through same on liquid layer chamber (6) and coupling block (5)
The spout that axis opens up is opposite, and the nozzle (10) of the spout is connected to liquid layer chamber (6)；
The stepless pressure regulation high pressure water of high pressure liquid-supply unit (11) output is entered water chamber (3), middle chamber (4) and coupling block
Liquid layer chamber (6) are come together in after (5) three level shunts forms low pressure current stabilization water；
The countertop unit is set to below spout, the workbench (12) including three-shaft linkage, the clamping fixed station of workpiece (13)
Plate (14) is set on workbench (12) by sink (15), the jet impulse water reflux high pressure liquid-supply unit that sink (15) is accepted
(11)；
The top of the laser head (1) connects laser generator (26).
2. Water Jet Guided Laser processing unit (plant) according to claim 1, it is characterised in that: it is described enter water chamber (3) in coaxially open
Equipped with annular water chamber (19), annular water chamber (19) side circumference uniform distribution offers 2~6 be passed through for stepless pressure regulation high pressure water
A radial direction water inlet (20), annular water chamber (19) lower circumference uniformly offer 4~8 axial diffluence pass (22), correspond to each
Diffluence pass (22) opens up upper and lower flowing hole (23,24), the lower flowing hole inside middle chamber (4) and coupling block (5) respectively
(24) it is connected to by corresponding radial overflow hole (25) with liquid layer chamber (6).
3. Water Jet Guided Laser processing unit (plant) according to claim 2, it is characterised in that: the liquid layer chamber (6) is formed in coupling
Between block (5) and middle chamber (4) and laser head (1) lower bottom end and choked flow cone column (16), choked flow cone column (16) kiss
Trap is loaded on laser head (1) lower part and obstruction is in the taper hole of middle chamber (4)；It is described enter water chamber (3) at the top of be equipped with closing
The spoiler (17) of annular water chamber (19), the spoiler (17), which is coincide, is set in laser head (1) lower part.
4. Water Jet Guided Laser processing unit (plant) according to any one of claims 1 to 3, it is characterised in that: the rotary sleeve
Circumference uniform distribution is provided with visual windows (21) on cylinder (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822227155.5U CN209349685U (en) | 2018-12-27 | 2018-12-27 | Water Jet Guided Laser processing unit (plant) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822227155.5U CN209349685U (en) | 2018-12-27 | 2018-12-27 | Water Jet Guided Laser processing unit (plant) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209349685U true CN209349685U (en) | 2019-09-06 |
Family
ID=67801155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822227155.5U Expired - Fee Related CN209349685U (en) | 2018-12-27 | 2018-12-27 | Water Jet Guided Laser processing unit (plant) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209349685U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111408837A (en) * | 2020-04-28 | 2020-07-14 | 桂林电子科技大学 | High-power laser beam efficient coupling water-guided laser structure and method |
| CN116727844A (en) * | 2023-06-21 | 2023-09-12 | 北京工业大学 | Water-guide laser water jet stabilization enhancement coupling device |
-
2018
- 2018-12-27 CN CN201822227155.5U patent/CN209349685U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111408837A (en) * | 2020-04-28 | 2020-07-14 | 桂林电子科技大学 | High-power laser beam efficient coupling water-guided laser structure and method |
| CN116727844A (en) * | 2023-06-21 | 2023-09-12 | 北京工业大学 | Water-guide laser water jet stabilization enhancement coupling device |
| CN116727844B (en) * | 2023-06-21 | 2024-02-23 | 北京工业大学 | Water-guide laser water jet stabilization enhancement coupling device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190906 Termination date: 20201227 |
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| CF01 | Termination of patent right due to non-payment of annual fee |