CN116727844B - Water-guide laser water jet stabilization enhancement coupling device - Google Patents
Water-guide laser water jet stabilization enhancement coupling device Download PDFInfo
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- CN116727844B CN116727844B CN202310742315.2A CN202310742315A CN116727844B CN 116727844 B CN116727844 B CN 116727844B CN 202310742315 A CN202310742315 A CN 202310742315A CN 116727844 B CN116727844 B CN 116727844B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 149
- 230000008878 coupling Effects 0.000 title claims abstract description 33
- 238000010168 coupling process Methods 0.000 title claims abstract description 33
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 33
- 230000006641 stabilisation Effects 0.000 title claims abstract description 12
- 238000011105 stabilization Methods 0.000 title claims abstract description 12
- 230000010412 perfusion Effects 0.000 claims abstract description 17
- 239000011521 glass Substances 0.000 claims description 15
- 239000007921 spray Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 238000001802 infusion Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 28
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 230000001681 protective effect Effects 0.000 abstract description 3
- 239000003570 air Substances 0.000 description 27
- 239000000463 material Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000002679 ablation Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000000608 laser ablation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 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
- B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
- B23K26/1462—Nozzles; Features related to nozzles
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a water-guide laser water jet stabilization enhancement coupling device, which comprises: the upper shell is internally provided with a laser incidence cavity for providing an incidence port for the laser incidence coupling device; the bottom surface of the lower shell is provided with a jet flow cavity; the lower shell is also internally provided with a double-sided nozzle; the center of the middle shell is provided with a containing cavity, and the upper shell and the lower shell are both arranged in the containing cavity; the top surface of the middle shell is also provided with a pouring cavity which is communicated with the accommodating cavity downwards; a perfusion assembly is formed in the perfusion cavity; according to the invention, high-pressure water is injected into the accommodating cavity through the filling cavity, the pressurized water is uniformly distributed in flow through the radial diversion grooves, high-pressure water jet is formed through the nozzle, an annular air gap is arranged below the nozzle, and a protective atmosphere is formed around the water jet, so that the stability of the water jet is enhanced, the complete coupling length of laser and the water jet is prolonged, and the processing distance and the processing precision of the water-guided laser processing equipment are improved.
Description
Technical Field
The invention belongs to the technical field of water-guided laser processing equipment, and particularly relates to a water-guided laser water jet stabilization enhancement coupling device.
Background
The water-guided laser processing technology is based on the principle of total internal reflection, and can generate a laser beam which is completely contained in a water jet, the laser beam is reflected at an air-water interface with a medium with lower density, the laser beam propagates from a nozzle to the surface of a workpiece along a micron-sized water beam, and the laser is used for ablating the workpiece; the water may be used to cool the cutting zone and to flush away the laser ablation debris in time. The heat conduction effect of laser in the conventional laser processing technology can generate extremely high temperature gradient, so that a processing area forms a heat affected zone, a workpiece is cracked and accompanied with slag, the quality of the micro-processed workpiece is affected, and even the mechanical property of a processed material is seriously reduced. Therefore, the problems of thermal microcrack, thermal deformation, residual slag on the section and the like in the laser processing process are key problems to be solved urgently in the current precision laser processing industry. Compared with the traditional laser direct ablation, the method has the advantages that heat accumulation and burrs generated in the water guide laser processing are less, the surface of a processing area is smoother, the working distance of the water guide laser processing technology is larger, laser is totally reflected in a stable water jet column section and does not need to be focused on a focus position for processing, the laser and the water jet are coupled to form a light guide water jet with high energy density, molten materials can be taken away in the cutting process, processing material residues are reduced, a heat affected zone and circumferential burrs are avoided, the processing quality is uniform, and the method is suitable for cutting complex surfaces and multi-layer materials.
The basic principle of water-guided laser processing is that laser beams enter a water jet beam for total reflection, and the stable water jet beam can improve the processing depth and precision, and is the basis for realizing the water-guided laser processing, so that the current research difficulty is to further improve the stable flow state of the water jet beam of the coupling device. The existing water-guiding laser water jet flow state stability enhancing method has a plurality of limitations, such as short length of stable state of light-guiding water jet generated by coupling water cavity structures of single-inlet single-runner, multi-inlet multi-runner and the like, large diameter of jet water column and high pressure loss of water jet.
In order to improve the water-light coupling efficiency, on one hand, the coupling water cavity and the nozzle structure need to be optimized to improve the stability of the light guide water jet; on the other hand, air jet is also adopted to enhance the jet length of the light guide water and stabilize the flow state so as to increase the processing distance.
Disclosure of Invention
The invention aims to provide a water-guide laser water jet stabilization enhancement coupling device so as to solve the problems.
In order to achieve the above object, the present invention provides the following solutions:
a water-guided laser water jet stabilization enhancement coupling device, comprising:
the upper shell is internally provided with a laser incidence cavity for providing an incidence port for the laser incidence coupling device;
a lower housing; a jet cavity is formed in the bottom surface of the lower shell, and the jet cavity corresponds to the laser incidence cavity in an up-down mode; a double-sided nozzle is also arranged in the lower shell;
the middle shell is provided with a containing cavity in the center, and the upper shell and the lower shell are both arranged in the containing cavity; the top surface of the middle shell is also provided with a pouring cavity which is communicated with the accommodating cavity downwards; a perfusion assembly is formed in the perfusion cavity;
the sealing cover is covered at the top of the pouring cavity.
The glass also comprises light-transmitting glass; the light-transmitting glass is embedded in the bottom surface of the upper shell and is arranged at the bottom of the laser incidence cavity; a thin water layer is formed between the light-transmitting glass and the double-sided nozzle; the perfusion cavity is communicated to the thin water layer.
The infusion assembly includes an annular wall; the annular wall divides the perfusion chamber into an outer annular channel and an inner annular channel; an axial water inlet channel is formed in the bottom of the inner annular channel and is communicated to the thin water layer;
tangential water inlets are formed in the outer wall of the perfusion cavity and towards the inner side of the outer annular channel;
a plurality of radial diversion grooves are formed in the annular wall at equal intervals; the radial diversion trench is used for communicating the outer annular channel and the inner annular channel.
The top end of the axial water inlet channel is correspondingly arranged at the opening position of the radial diversion groove; the cross section of the axial water inlet channel is of an L-shaped structure, and the bottom end of the axial water inlet channel is arranged towards the thin water layer.
At least two tangential water inlets are formed and are symmetrically distributed at equal intervals.
The top surface and the bottom surface of the double-sided nozzle are respectively provided with an upper nozzle conical surface and a lower nozzle conical surface correspondingly; the upper conical surface of the nozzle is communicated with the lower conical surface of the nozzle through a nozzle spray hole; the upper conical surface of the nozzle corresponds to the center position of the laser incidence cavity; the lower conical surface of the nozzle corresponds to the position of the jet cavity.
The bottom of the middle shell is also provided with an air inlet channel, and the air inlet channel extends into the lower shell; an annular air gap is formed in the lower shell; the air inlet channel is communicated with the annular air gap.
The angle of the upper conical surface of the nozzle and the angle of the lower conical surface of the nozzle are 60 degrees to 120 degrees, and the depth-diameter ratio of the spray hole of the nozzle is smaller than 2.
Compared with the prior art, the invention has the following advantages and technical effects: 1. the invention is provided with a plurality of symmetrical tangential water inlets at the outer side of the middle shell, so that the pressure loss caused by the facing flushing of the high-pressure water and the cavity wall of the traditional forward water inlet is reduced, the turbulence in the accommodating cavity is reduced, the jet pressure of the light guide water jet is improved, and the stable and uniform light guide water jet is promoted to be formed.
2. According to the invention, the radial diversion grooves are arranged in the middle shell, the diversion grooves are utilized to uniformly distribute the pressure and flow of the high-pressure water entering the cavity tangentially, and the high-pressure water is led into the diversion grooves through the axial water inlet channel and enters the thin water layer, so that the flow state stability of a flow field near the nozzle is improved, and the problem of unstable light guide water jet caused by inconsistent flow around the nozzle is solved.
3. The invention is provided with the double-sided nozzle, the upper part of the double-sided nozzle receives high pressure water of a thin water layer, the lower part of the double-sided nozzle generates light guide water jet, compared with the traditional single-sided lower conical nozzle, the upper conical surface of the double-sided nozzle forms stable downward water jet by gathering the high pressure water, the abrasion problem of the right angle edge of the nozzle caused by long-term impact of the high pressure water is solved, the stable length of the light guide water jet is improved, the service life of the nozzle is further prolonged, the lower conical surface of the nozzle is convenient for generating the light guide water jet in a condensed flow state, the jet cavitation phenomenon is solved, the stable formation of the light guide water jet is promoted, meanwhile, the double-sided conical nozzle increases the thickness of nozzle materials, and the tolerance pressure of the nozzle is improved.
4. According to the invention, the lower shell is provided with the annular air gap, high-pressure air is conveyed to the annular air gap through the air inlet, and the annular air gap is utilized to form the protective air curtain around the water jet, so that the stability of the light guide water jet is improved, and the stable length is prolonged.
Drawings
For a clearer description of an embodiment of the invention or of the solutions of the prior art, the drawings that are needed in the embodiment will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art:
FIG. 1 is a front cross-sectional view of a coupling device of a water-guided laser system of the present invention;
FIG. 2 is a cross-sectional view of a coupling device of a water-guided laser system of the present invention showing a portion of an axial water inlet channel;
FIG. 3 is a cross-sectional view of a tangential water inlet and flow passage of a coupling device of a water-guided laser system of the present invention;
FIG. 4 is a cross-sectional view of a dual sided nozzle of the coupling device of the water-guided laser system of the present invention;
FIG. 5 is an assembly view of a coupling device of the water-guided laser system of the present invention;
wherein 1 is an upper shell, 2 is a middle shell, 3 is a tangential water inlet, 4 is a laser incidence cavity, 5 is light-transmitting glass, 6 is an air inlet channel, 7 is a sealing cover, 8 is a double-sided nozzle, 9 is a lower shell, 10 is an annular air gap, 11 is an annular wall, 12 is an axial water inlet channel, 13 is a thin water layer, 14 is a radial diversion groove, 15 is an upper conical surface of the nozzle, 16 is a nozzle spray hole, and 17 is a lower conical surface of the nozzle.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
A water-guided laser water jet stabilization enhancement coupling device, comprising:
the upper shell 1, offer the laser and incident the cavity 4 in the upper shell 1, is used for providing the entrance for the laser to penetrate the coupling device;
a lower case 9; the bottom surface of the lower shell 9 is provided with a jet cavity, and the jet cavity corresponds to the laser incidence cavity 4 in an up-down mode; a double-sided nozzle 8 is also arranged in the lower shell 9;
the middle shell 2, the middle shell 2 center is opened and holds the chamber, upper shell 1 and lower shell 9 are installed in holding the chamber; the top surface of the middle shell 2 is also provided with a pouring cavity which is communicated with the accommodating cavity downwards; a perfusion assembly is formed in the perfusion cavity;
and the sealing cover 7 is arranged at the top of the pouring cavity in a covering way, and the sealing cover 7 is arranged at the top of the pouring cavity in a covering way.
The glass also comprises a light-transmitting glass 5; the light-transmitting glass is embedded in the bottom surface of the upper shell 1 and is arranged at the bottom of the laser incidence cavity 4; a thin water layer 13 is formed between the light-transmitting glass 5 and the double-sided nozzle 8; the perfusion chamber communicates to the thin water layer 13.
The infusion assembly comprises an annular wall 11; the annular wall 11 divides the perfusion chamber into an outer annular channel and an inner annular channel; an axial water inlet channel 12 is formed in the bottom of the inner annular channel, and the axial water inlet channel 12 is communicated to a thin water layer 13;
the outer wall of the pouring cavity is also provided with a tangential water inlet hole 3 in the outward annular channel;
a plurality of radial diversion grooves 14 are formed in the annular wall 11 at equal intervals; the radial diverting grooves 14 are used to communicate the outer annular channel and the inner annular channel.
The top end of the axial water inlet channel 12 is correspondingly arranged at the opening position of the radial diversion groove 14; the section of the axial water inlet channel 12 is of an L-shaped structure, and the bottom end of the axial water inlet channel 12 is arranged towards the thin water layer 13.
At least two tangential water inlets 3 are arranged and are symmetrically distributed at equal intervals.
The top surface and the bottom surface of the double-sided nozzle 8 are respectively provided with an upper nozzle conical surface 15 and a lower nozzle conical surface 17 correspondingly; the upper conical surface 15 of the nozzle is communicated with the lower conical surface 17 of the nozzle through a nozzle spray hole 16; the upper conical surface 15 of the nozzle corresponds to the central position of the laser incidence cavity 4; the lower conical surface 17 of the nozzle corresponds to the position of the jet cavity.
The angle of the conical surfaces of the upper conical surface 15 and the lower conical surface 17 of the nozzle is 60-120 degrees, and the depth-diameter ratio of the spray hole 16 of the nozzle is smaller than 2.
The bottom of the middle shell 2 is also provided with an air inlet channel 6, and the air inlet channel 6 extends into the lower shell 9; an annular air gap 10 is formed in the lower shell 9; the air inlet channel 6 is communicated with the annular air gap 10.
In one embodiment of the present invention, as shown in fig. 1-3, the present invention comprises an upper housing 1, a middle housing 2, a sealing cover 7 and a lower housing 9, wherein the upper housing 1 is provided with a laser incidence cavity 4, the laser incidence cavity 4 provides an incidence space for laser incidence coupling device, and a light-transmitting glass 5 is arranged at the bottom of the laser incidence cavity 4 for isolating a water layer and for transmitting laser;
further, the inside perfusion chamber that is equipped with of intermediate casing 2, intermediate casing 2 is close to sealed lid 7 one side, the junction of intermediate casing 2 and lower casing 9 certain altitude department, be equipped with two concentric arrangement's outer annular passage and interior annular passage in intermediate casing 2 circumference, intermediate casing 2 is close to sealed lid 7 one side along circumference has two symmetrical tangential water inlet 3, two symmetrical tangential water inlet 3 and outer annular passage and interior annular passage intercommunication, in the high-pressure water injection coupling device, high-pressure water gets into the perfusion chamber from tangential water inlet 3, tangential angle's water inlet has reduced the pressure loss that traditional forward water inlet and cavity wall face towards and cause, and the turbulence in holding the cavity has been reduced, the injection pressure of leaded light water efflux has been improved, the formation of stable even leaded light water efflux has been promoted.
Further, the connecting wall surfaces of the two concentrically arranged outer annular channels and the inner annular channels are annular walls 11, four circumferentially uniformly distributed radial diversion grooves 14 are formed in the annular walls 11, high-pressure water is uniformly distributed in flow through the radial diversion grooves 14, four axial water inlet channels 12 which face the accommodating cavity of the middle shell 2 along the axial direction of the middle shell 2 are arranged at the positions of the inner annular channels corresponding to the radial diversion grooves 14, the axial water inlet channels 12 are of an L-shaped structure and are used for guiding the high-pressure water to enter the Bao Shuiceng, four radial diversion grooves 14 are formed in the middle shell 2, the high-pressure water which tangentially enters the cavity is uniformly distributed in pressure and flow through the radial diversion grooves 14, the high-pressure water is guided into the radial diversion grooves 14 through the four axial water inlet channels 12, and enters the thin water layer 13, so that the flow state stability of a flow field near the double-sided nozzle 8 is improved, and the problem that the light guide water jet is unstable due to the non-uniform flow around the double-sided nozzle 8 is solved.
Further, the middle shell 2 and the lower shell 9 are in threaded connection, the double-sided nozzle 8 is convenient to replace, the lower shell 9 and the double-sided nozzle 8 are in interference fixed connection, an annular air gap 10 is formed in one side, far away from the double-sided nozzle 8, of the lower shell 9, an air inlet channel 6 communicated with the annular air gap 10 is formed in the lower shell 9, and the air inlet channel 6 forms a protective atmosphere around the water jet so as to enhance the stability of the water jet, further prolong the complete coupling length of laser and the water jet, and greatly improve the processing distance and the processing precision of the water guide laser processing equipment.
In one embodiment of the present invention, the intake passage 6 is filled with a shielding gas.
In one embodiment of the invention, as shown in fig. 1, the upper housing 1 is screwed to the intermediate housing 2.
In one embodiment of the present invention, as shown in fig. 1 and 4, the lower housing 9 is provided with a double-sided nozzle 8, the upper part of the double-sided nozzle 8 receives high pressure water of the thin water layer 13, the lower part generates water jet, and compared with the conventional single-sided lower conical nozzle, the nozzle upper conical surface 15 forms stable downward water jet by gathering the high pressure water, so that the abrasion problem of the right angle edge of the nozzle due to long-term impact of the high pressure water is solved, the service life of the nozzle 8 is further prolonged while the stable length of the water jet is improved, the lower conical surface 17 of the nozzle is convenient for generating water jet in a contracted state, the cavitation phenomenon of the water jet is solved, the stable formation of the water jet is promoted, and meanwhile, the thickness of the nozzle material is increased by the double-sided nozzle 8, and the tolerance pressure of the nozzle is improved.
The working principle of the invention is as follows:
when the device works, high-pressure water enters the coupling device from the tangential water inlet hole 3 at a tangential angle, so that pressure loss caused by the opposite flushing of the high-pressure water and the wall surface of the coupling device is reduced, the high-pressure water flows into the axial water inlet channel 12 from the radial diversion channel 14 through the annular wall 11, the pressure and the flow of the high-pressure water entering the cavity in the tangential direction are uniformly distributed, the high-pressure water passes through the axial water inlet channel 12 with an L-shaped structure, bao Shuiceng is generated in a gap formed by the upper conical surface of the double-sided nozzle 8 and the transparent glass 5, the flow state stability of a flow field near the double-sided nozzle 8 is improved, the problem of unstable light guide water jet caused by inconsistent flow around the double-sided nozzle 8 is solved, and the high-pressure water of the thin water layer 13 downwards generates water jet through the double-sided nozzle 8; when deep hole processing is carried out, laser is shot into the coupling device from the laser incidence cavity 4, pass through light-transmitting glass 5 and the thin water layer 13 and focus on double-sided nozzle 8 department, laser enters the water jet, form total reflection in the water jet is inside, form the water guide laser that is used for processing along water jet ejection direction, after water guide laser generates, high-pressure gas gets into annular air slit 10 from inlet channel 6, annular air slit 10 is unanimous with water jet direction in the exit direction, and along double-sided nozzle 8 annular distribution, high-pressure gas is spouted from annular air slit 10, can prevent that ambient air from entering the water jet, thereby influence stable water jet's formation, and high-pressure air can clear away the processing area rapidly with the processing residue, prevent that the residue from piling up and lead to reduce in the processing efficiency, light guide water jet's stability in the course of working, and then improved the processing distance and the precision of water guide laser greatly.
In the description of the present invention, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
The above embodiments are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solutions of the present invention should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.
Claims (5)
1. A water-guided laser water jet stabilization enhancement coupling device, comprising:
the laser coupling device comprises an upper shell (1), wherein a laser incidence cavity (4) is formed in the upper shell (1) and used for providing an incidence port for a laser incidence coupling device;
a lower housing (9); a jet cavity is formed in the bottom surface of the lower shell (9), and the jet cavity corresponds to the laser incidence cavity (4) in an up-down mode; a double-sided nozzle (8) is also arranged in the lower shell (9);
the middle shell (2), the center of the middle shell (2) is provided with a containing cavity, and the upper shell (1) and the lower shell (9) are both arranged in the containing cavity; the top surface of the middle shell (2) is also provided with a pouring cavity which is communicated with the accommodating cavity downwards; a perfusion assembly is formed in the perfusion cavity;
the sealing cover (7) is covered on the top of the pouring cavity; also comprises a light-transmitting glass (5); the light-transmitting glass is embedded in the bottom surface of the upper shell (1) and is arranged at the bottom of the laser incidence cavity (4); a thin water layer (13) is formed between the light-transmitting glass (5) and the double-sided nozzle (8); the perfusion cavity is communicated to the Bao Shuiceng (13); the infusion assembly comprises an annular wall (11); -the annular wall (11) divides the perfusion chamber into an outer annular channel and an inner annular channel; an axial water inlet channel (12) is formed in the bottom of the inner annular channel, and the axial water inlet channel (12) is communicated to the Bao Shuiceng (13);
tangential water inlets (3) are formed in the outer wall of the pouring cavity and towards the inner side of the outer annular channel;
a plurality of radial diversion grooves (14) are formed in the annular wall (11) at equal intervals; the radial diversion trench (14) is used for communicating the outer annular channel and the inner annular channel; the top surface and the bottom surface of the double-sided nozzle (8) are respectively provided with an upper nozzle conical surface (15) and a lower nozzle conical surface (17) correspondingly; the upper conical surface (15) of the nozzle is communicated with the lower conical surface (17) of the nozzle through a nozzle spray hole (16); the upper conical surface (15) of the nozzle corresponds to the central position of the laser incidence cavity (4); the lower conical surface (17) of the nozzle corresponds to the position of the jet cavity.
2. The water-guided laser water jet stabilization enhancement coupling device of claim 1, wherein: the top end of the axial water inlet channel (12) is correspondingly arranged at the opening position of the radial diversion groove (14); the cross section of the axial water inlet channel (12) is of an L-shaped structure, and the bottom end of the axial water inlet channel (12) is arranged towards the Bao Shuiceng (13).
3. The water-guided laser water jet stabilization enhancement coupling device of claim 1, wherein: at least two tangential water inlets (3) are formed and are symmetrically distributed at equal intervals.
4. The water-guided laser water jet stabilization enhancement coupling device of claim 1, wherein: the angle of the conical surfaces of the upper conical surface (15) and the lower conical surface (17) of the nozzle is 60-120 degrees, and the depth-diameter ratio of the spray hole (16) of the nozzle is smaller than 2.
5. The water-guided laser water jet stabilization enhancement coupling device of claim 1, wherein: an air inlet channel (6) is further formed in the bottom of the middle shell (2), and the air inlet channel (6) extends into the lower shell (9); an annular air gap (10) is formed in the lower shell (9); the air inlet channel (6) is communicated with the annular air gap (10).
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| CN202310742315.2A CN116727844B (en) | 2023-06-21 | 2023-06-21 | Water-guide laser water jet stabilization enhancement coupling device |
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| CN202310742315.2A CN116727844B (en) | 2023-06-21 | 2023-06-21 | Water-guide laser water jet stabilization enhancement coupling device |
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| CN102500928A (en) * | 2011-10-31 | 2012-06-20 | 重庆长安汽车股份有限公司 | Micro-water-column guiding laser micromachining device |
| CN209349685U (en) * | 2018-12-27 | 2019-09-06 | 桂林电子科技大学 | Water Jet Guided Laser processing unit (plant) |
| CN110125540A (en) * | 2019-05-15 | 2019-08-16 | 哈尔滨工业大学 | A kind of method, system and its equipment of water guiding laser processing workpiece |
| CN213945342U (en) * | 2020-11-23 | 2021-08-13 | 桂林电子科技大学 | Novel water-conducting laser coupling device |
| CN113751900A (en) * | 2021-09-28 | 2021-12-07 | 武汉大学 | Water-guide laser drilling system and method |
| CN217749848U (en) * | 2022-07-20 | 2022-11-08 | 沈阳工业大学 | Multichannel voltage stabilization type water-conducting laser coupling device |
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