CN114024190A - Laser output head and laser equipment - Google Patents
Laser output head and laser equipment Download PDFInfo
- Publication number
- CN114024190A CN114024190A CN202111253186.8A CN202111253186A CN114024190A CN 114024190 A CN114024190 A CN 114024190A CN 202111253186 A CN202111253186 A CN 202111253186A CN 114024190 A CN114024190 A CN 114024190A
- Authority
- CN
- China
- Prior art keywords
- cooling
- output head
- laser
- sealing ring
- laser output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001816 cooling Methods 0.000 claims abstract description 118
- 239000000463 material Substances 0.000 claims abstract description 95
- 238000007599 discharging Methods 0.000 claims abstract description 62
- 238000002955 isolation Methods 0.000 claims abstract description 20
- 239000013307 optical fiber Substances 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims description 64
- 238000009434 installation Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 239000000112 cooling gas Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229920001774 Perfluoroether Polymers 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- UJMWVICAENGCRF-UHFFFAOYSA-N oxygen difluoride Chemical compound FOF UJMWVICAENGCRF-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
- H01S3/04—Arrangements for thermal management
- H01S3/0404—Air- or gas cooling, e.g. by dry nitrogen
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/005—Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
- H01S3/0071—Beam steering, e.g. whereby a mirror outside the cavity is present to change the beam direction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
- H01S3/04—Arrangements for thermal management
- H01S3/0407—Liquid cooling, e.g. by water
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/022—Mountings; Housings
- H01S5/0225—Out-coupling of light
- H01S5/02251—Out-coupling of light using optical fibres
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/024—Arrangements for thermal management
- H01S5/02407—Active cooling, e.g. the laser temperature is controlled by a thermo-electric cooler or water cooling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/024—Arrangements for thermal management
- H01S5/02407—Active cooling, e.g. the laser temperature is controlled by a thermo-electric cooler or water cooling
- H01S5/02423—Liquid cooling, e.g. a liquid cools a mount of the laser
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/024—Arrangements for thermal management
- H01S5/02438—Characterized by cooling of elements other than the laser chip, e.g. an optical element being part of an external cavity or a collimating lens
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Lasers (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention relates to a laser output head which is used for being installed in a laser device, the laser output head comprises a shell and an isolation assembly, a cooling cavity for containing optical fibers, a feeding port and a discharging port are formed in the shell, the feeding port is communicated with the cooling cavity and used for allowing cooling materials to enter the cooling cavity so as to reduce the temperature of the optical fibers, and the discharging port is used for discharging the cooling materials out of the cooling cavity; the isolation component is arranged on the shell and is used for being matched with the laser device to separate the feeding port from the discharging port.
Description
Technical Field
The invention relates to the technical field of laser, in particular to a laser output head and laser equipment.
Background
In the field of laser processing, a laser output head is a key component for focusing high-energy laser in an optical fiber on the surface of a workpiece. Because the laser equipment with high power is needed in the laser processing process, a corresponding cooling structure is needed to be arranged at the laser output head so as to prevent the laser output head from being damaged due to high temperature generated by laser.
The cooling liquid or the cooling gas is generally selected to cool the laser output head by the conventional laser output head, but the cooling liquid or the cooling gas is difficult to be accurately input into the laser output head, so that the cooling effect of the laser output head is poor.
Disclosure of Invention
In view of the above, it is desirable to provide a laser output head and a laser apparatus.
A laser output head for mounting into a laser device, the laser output head comprising:
the optical fiber cooling device comprises a shell, wherein a cooling cavity for accommodating optical fibers, a feeding port and a discharging port are formed in the shell, the feeding port is communicated with the cooling cavity and used for allowing cooling materials to enter the cooling cavity for cooling, and the discharging port is used for discharging the cooling materials out of the cooling cavity;
the isolation assembly is arranged on the shell and used for being matched with the laser device to separate the feeding port from the discharging port.
Above-mentioned laser output head, when it was installed in to laser device, the isolation subassembly on the casing can separate shell surface's pan feeding mouth and discharge gate with the laser device cooperation to guarantee that the cooling material can get into the cooling intracavity of casing along the pan feeding mouth and discharge by the discharge gate again, avoid originally should leak to the discharge gate place along the clearance of laser device and laser output head by the cooling material that the pan feeding mouth got into the cooling chamber, also avoided leaking to the place of pan feeding mouth along the clearance of laser device and laser output head by the discharge gate exhaust cooling material simultaneously. In other words, the one-way circulation of the cooling material is guaranteed by the arrangement of the isolation assembly, so that the cooling material can accurately and efficiently enter and exit the cooling cavity, and the cooling efficiency of the cooling material on the shell is improved.
In one embodiment, the isolation assembly includes a first sealing ring sleeved on the housing, and the first sealing ring is located between the material inlet and the material outlet and is used for abutting against and matching with an inner surface of the laser device to separate the material inlet from the material outlet. When the laser output head is installed in the laser device, the first sealing ring is abutted to the inner surface of the laser device to separate the feeding port from the discharging port.
In one embodiment, the isolation assembly further includes a second sealing ring and a third sealing ring, the second sealing ring and the third sealing ring are sleeved on the housing and are used for being matched with the inner surface of the laser device in an abutting mode, the second sealing ring is located on one side, away from the first sealing ring, of the feeding port, and the third sealing ring is located on one side, away from the first sealing ring, of the discharging port. First sealing washer and second sealing washer can seal up the clearance between the laser device of pan feeding mouth both sides and the casing of laser output head, first sealing washer and third sealing washer can seal up the clearance between the laser device of discharge gate both sides and the casing of laser output head, when the cooling material gets into the cooling intracavity by the pan feeding mouth of casing and again discharges from the discharge gate, such structure setting can ensure that the cooling material can not permeate between the clearance of laser device and laser output head, the flow velocity and the cooling efficiency of cooling material have further been improved.
In one embodiment, a first limiting groove is formed in the outer surface of the housing, the first limiting groove is located between the feeding port and the discharging port, the first sealing ring is embedded in the first limiting groove, and the first limiting groove is in limiting fit with the first sealing ring to limit the movement of the first sealing ring in the axial direction of the housing. The first limiting groove is arranged to be beneficial to fixing the relative position of the first sealing ring and the shell, so that the first sealing ring is prevented from generating position deviation, and the separation of the feeding port and the discharging port is ensured.
In one embodiment, the first limiting groove extends along the circumferential direction of the shell and is annular. The structure arrangement can better utilize the groove wall of the first limit groove to generate better limit fixing effect on the first sealing ring.
In one embodiment, a feeding guide groove and a discharging guide groove which are not communicated with each other are formed on the outer surface of the shell, the feeding guide groove is communicated with the feeding port, the discharging guide groove is communicated with the discharging port, the feeding guide groove is used for guiding the cooling material to move along the feeding guide groove and enter the feeding port, and the discharging guide groove is used for guiding the cooling material discharged from the discharging port to move along the discharging guide groove.
In one embodiment, the feeding guide groove and the discharging guide groove extend along the circumferential direction of the shell and are annular.
In one embodiment, at least one of the following features is included:
the feeding port and the discharging port are positioned on two opposite sides of the shell;
the laser output head further comprises a heat conducting piece arranged in the cooling cavity, an optical fiber cavity is formed in the heat conducting piece, and the optical fiber cavity is used for accommodating the optical fiber.
The application still relates to a laser equipment, include laser device and as above-mentioned any one embodiment laser output head, be equipped with installation cavity, feeding pipeline and ejection of compact pipeline in the laser device, the installation cavity is used for the holding laser output head, the feeding pipeline be used for with the pan feeding mouth intercommunication of laser output head is in order with the cooling material input the pan feeding mouth, ejection of compact pipeline be used for with the discharge gate intercommunication of laser output head is in order to receive the follow the discharge gate is discharged the cooling material.
Above-mentioned laser equipment, when its laser output head was installed to laser device in, the isolation subassembly on the casing can separate the pan feeding mouth and the discharge gate on casing surface with the cooperation of laser device to guarantee that laser device's pan feeding pipeline can be with the cooling material along the cooling intracavity of pan feeding mouth input casing, discharge conduit can accept by discharge gate exhaust cooling material. The structure arrangement can avoid the cooling material which should enter the cooling cavity from the feeding port from leaking to the position of the discharging port along the gap between the laser device and the laser output head, and meanwhile, the cooling material which is discharged from the discharging port from leaking to the position of the feeding port along the gap between the laser device and the laser output head. In other words, the one-way circulation of the cooling material is guaranteed by the arrangement of the isolation assembly, so that the cooling material can accurately and efficiently enter and exit the cooling cavity, and the cooling efficiency of the cooling material on the shell is improved.
In one embodiment, the laser device is further provided with a gun barrel communicated with the discharge pipeline, and the gun barrel is used for ejecting the cooling material from a muzzle of the gun barrel.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a perspective view of a laser output head according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the laser output head of the embodiment shown in FIG. 1;
FIG. 3 is a schematic diagram of a laser apparatus according to an embodiment of the present invention;
FIG. 4 is a partial cross-sectional view of a laser apparatus according to one embodiment of the present invention, wherein a laser output head is not mounted within the laser apparatus;
fig. 5 is a partial cross-sectional view of a laser apparatus in which a laser output head is mounted, according to an embodiment of the present invention.
Reference numerals:
10. a laser device; 11. a laser output head; 100. a housing; 110. a feeding port; 120. a discharge port;
130. a cooling chamber; 141. a first limit groove; 142. a second limit groove; 143. a third limiting groove;
151. a feeding guide groove; 152. a discharge guide groove; 200. an isolation component; 201. a first seal ring;
202. a second seal ring; 203. a third seal ring; 300. a heat conductive member; 310. a fiber cavity; 12. a laser device; 121. a feeding pipeline; 122. a discharge pipeline; 123. a mounting cavity; 124. a barrel;
20. an optical fiber.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
Referring to fig. 1 and 2, in one embodiment, a laser output head 11 is provided for installation into a laser device 12, and includes a housing 100 and a spacer assembly 200. The housing 100 is provided with a cooling cavity 130 for accommodating the optical fiber 20, and a feeding port 110 and a discharging port 120 which are communicated with the cooling cavity 130, wherein the feeding port 110 is used for feeding cooling materials into the cooling cavity 130 for cooling, and the discharging port 120 is used for discharging the cooling materials out of the cooling cavity 130. The laser device 12 is provided with an installation cavity 123, a feeding pipeline 121 and a discharging pipeline 122 inside, the installation cavity 123 is used for accommodating the laser output head 11, the feeding pipeline 121 is used for communicating with the feeding port 110 of the laser output head 11 to input a cooling material into the feeding port 110, and the discharging pipeline 122 is used for communicating with the discharging port 120 of the laser output head 11 to receive the cooling material discharged from the discharging port 120. An isolation assembly 200 is disposed in the housing 100, the isolation assembly 200 being adapted to cooperate with the laser apparatus 12 to isolate the inlet port 110 from the outlet port 120.
Wherein, the cooling material can be liquid such as water, oil, liquid nitrogen and the like, and can also be gas such as argon, nitrogen and the like. The laser device 12 may be a hand-held laser welding head, a hand-held laser welding gun, a hand-held laser cutting head, or a hand-held laser cleaning head, among others.
Above-mentioned laser output head 11, when it installs in laser device 12, the subassembly 200 on casing 100 cooperates with laser device 12 and can separate pan feeding mouth 110 and discharge gate 120 on casing 100 surface, thereby guarantee that the cooling material can get into the cooling chamber 130 of casing 100 along pan feeding mouth 110 and discharge by discharge gate 120 again, avoid originally should get into the cooling material of cooling chamber 130 along laser device 12 and laser output head 11's clearance leakage to discharge gate 120 place by pan feeding mouth 110, also avoided leaking to the place of pan feeding mouth 110 along laser device 12 and laser output head 11's clearance by the cooling material of discharge gate 120 discharge simultaneously. In other words, the isolation assembly 200 ensures one-way circulation of the cooling material, so that the cooling material can accurately and efficiently enter and exit the cooling cavity 130, and the cooling efficiency of the cooling material on the housing 100 is improved.
Referring to fig. 1 and 2, in one embodiment, the isolation assembly 200 includes a first sealing ring 201 sleeved on the housing 100, wherein the first sealing ring 201 is located between the inlet 110 and the outlet 120 and is adapted to abut against and cooperate with an inner surface of the laser device 12 to separate the inlet 110 from the outlet 120. The first seal ring 201 is in contact with the inner surface of the laser device 12, and it is considered that the outer circumferential surface of the first seal ring 201 is in contact with the inner surface of the laser device 12 to be closely attached, and the inner circumferential surface of the first seal ring 201 is in contact with the outer surface of the housing 100 to be closely attached. When the laser output head 11 is installed in the laser device 12, it can be considered that the first sealing ring 201 on the outer surface of the housing 100 cooperates with the laser device 12 to divide the material inlet 110 and the material outlet 120 on the outer surface of the housing 100 into two relatively independent areas. This arrangement prevents the cooling material from flowing between the inlet 110 and the outlet 120 along the gap between the laser device 12 and the laser output head 11 outside the housing 100.
Further, in the embodiment shown in fig. 2, the isolation assembly 200 further includes a second sealing ring 202 and a third sealing ring 203 sleeved on the housing 100 and adapted to be in abutting engagement with the inner surface of the laser device 12. The second sealing ring 202 is located on one side of the feeding port 110 away from the first sealing ring 201, and the third sealing ring 203 is located on one side of the discharging port 120 away from the first sealing ring 201. The second seal ring 202, the first seal ring 201, and the third seal ring 203 may be sequentially sleeved on the casing 100 along the axial direction of the casing 100, that is, the casing may be in a "three-ring two-port" configuration. The first sealing ring 201 and the second sealing ring 202 can seal the gap between the laser devices 12 on the two sides of the feeding port 110 and the shell 100 of the laser output head 11, the first sealing ring 201 and the third sealing ring 203 can seal the gap between the laser devices 12 on the two sides of the discharging port 120 and the shell 100 of the laser output head 11, and when cooling materials enter the cooling cavity 130 from the feeding port 110 of the shell 100 and are discharged from the discharging port 120, the structural arrangement can ensure that the cooling materials cannot permeate into the gap between the laser devices 12 and the laser output head 11, so that the flowing speed and the cooling efficiency of the cooling materials are further improved. The abutting engagement manner of the second seal ring 202 and the third seal ring 203 with the inner surface of the laser device 12 can refer to the abutting engagement manner of the first seal ring 201 with the inner surface of the laser device 12, and is not described herein again.
Optionally, the first sealing ring 201, the second sealing ring 202 and the third sealing ring 203 may be made of polytetrafluoroethylene, ultra-high temperature perfluoroether, or other materials, and have certain elasticity while resisting high temperature.
In some embodiments, the size of the mounting cavity 123 of the laser device 12 may be slightly larger than the housing 100 of the laser output head 11, that is, when the laser output head 11 is mounted in the mounting cavity 123 of the laser device 12, there is a certain gap between the inner surface of the laser device 12 and the housing 100, and the gap is configured to enable the first sealing ring 201 to deform under the pressing of the inner surface of the laser device 12 and the outer surface of the housing 100 to perform a sealing function, so as to better separate the material inlet 110 and the material outlet 120.
Referring to fig. 1 and 2, a first limiting groove 141 is formed on an outer surface of the housing 100, and the first limiting groove 141 is located between the feeding port 110 and the discharging port 120. The first sealing ring 201 is embedded in the first limiting groove 141, that is, at least a portion of the first sealing ring 201 is located in the first limiting groove 141. The first limit groove 141 limits the movement of the first seal ring 201 in the axial direction of the housing 100 by limit-fitting with the first seal ring 201. The arrangement of the first limiting groove 141 is beneficial to fixing the relative position of the first sealing ring 201 and the casing 100, so that the first sealing ring 201 is prevented from generating position deviation, and the separation of the feeding port 110 and the discharging port 120 is ensured.
Specifically, in the embodiment shown in fig. 1, the first stopper groove 141 extends in a ring shape along the circumferential direction of the housing 100. Due to the structural arrangement, the groove wall of the first limiting groove 141 can be better utilized to generate a better limiting and fixing effect on the first sealing ring 201.
Further, in some embodiments, the outer surface of the casing 100 may further have a second limiting groove 142 and a third limiting groove 143, the second limiting groove 142 is located on a side of the feeding port 110 away from the first limiting groove 141, and the third limiting groove 143 is located on a side of the discharging port 120 away from the first limiting groove 141. The second limiting groove 142, the first limiting groove 141 and the third limiting groove 143 may be considered as being sequentially distributed on the outer surface of the casing 100 along the axial direction of the casing 100, and the first limiting groove 141 corresponds to the first sealing ring 201, the second limiting groove 142 corresponds to the second sealing ring 202, and the third limiting groove 143 corresponds to the third sealing ring 203. Similarly, the second seal ring 202 is embedded in the second limiting groove 142, and the second limiting groove 142 can abut against the second seal ring 202 through a groove wall to limit the movement of the second seal ring 202 in the axial direction of the housing 100; the third seal ring 203 is fitted in the third stopper groove 143, and the third stopper groove 143 may abut against the third seal ring 203 through a groove wall to restrict the movement of the third seal ring 203 in the axial direction of the housing 100.
It should be noted that the terms "first", "second", "third", etc. do not indicate or imply that a fixed number of seal rings or retaining grooves are required. In some embodiments, the first sealing ring 201 may be provided in plural, that is, plural first sealing rings 201 may be sleeved between the material inlet 110 and the material outlet 120 of the casing 100, so as to better separate the material inlet 110 and the material outlet 120 from the outer surface of the casing 100, and further ensure the flow direction of the cooling material. In some embodiments, the number of the second sealing ring 202 and the third sealing ring 203 may also be multiple, and such a structural arrangement may further ensure that the cooling material does not penetrate into the gap between the laser device 12 and the laser output head 11.
Similarly, the first limiting groove 141, the second limiting groove 142, and the third limiting groove 143 on the housing 100 of the laser output head 11 may be provided in plurality, and each first limiting groove 141 corresponds to one first seal ring 201, each second limiting groove 142 corresponds to one second seal ring 202, and each third limiting groove 143 corresponds to one third seal ring 203.
Referring to fig. 1 and 2, a feeding guide groove 151 and a discharging guide groove 152 which are not communicated with each other are formed on the outer surface of the housing 100, the feeding guide groove 151 is communicated with the feeding port 110, and the discharging guide groove 152 is communicated with the discharging port 120. The inlet guide channel 151 is used for guiding the cooling material to move along the inlet guide channel 151 into the inlet 110, and the outlet guide channel 152 is used for guiding the cooling material discharged from the outlet 120 to move along the outlet guide channel 152 to enter the laser device 12.
Specifically, in the embodiment shown in fig. 1, the feeding guide groove 151 and the discharging guide groove 152 each extend in a ring shape along the circumferential direction of the housing 100. Due to the adoption of the structure, on one hand, the requirement on assembly precision is reduced, and when a user installs the laser output head 11 into the laser device 12, even if the user does not completely align the material inlet 110 on the shell 100 with the mouth of the material inlet pipeline 121 of the laser device 12, the cooling material in the material inlet pipeline 121 can flow to the material inlet 110 along the material inlet guide groove 151 on the shell 100 and finally flows into the cooling cavity 130; similarly, even if the user does not properly align the discharge port 120 of the housing 100 with the nozzle of the discharge pipe 122 of the laser apparatus 12, the cooling material discharged from the discharge port 120 can flow along the discharge guide groove 152 to the nozzle of the discharge pipe 122 and finally into the discharge pipe 122 of the laser apparatus 12.
In other embodiments, the feeding guide groove 151 and the discharging guide groove 152 may also be in an open ring shape, i.e., not in a complete closed ring shape.
In other embodiments, the feeding guide groove 151 and the discharging guide groove 152 may also be spirally wound along the outer circumferential surface of the housing 100.
It should be noted that the shapes of the groove cross sections of the feeding guide groove 151 and the discharging guide groove 152 may include, but are not limited to, U-shape, V-shape, rectangular shape, etc.
Referring to fig. 2, in some embodiments, the laser output head 11 further includes a heat conducting member 300 disposed in the cooling cavity 130, and the heat conducting member 300 has a fiber cavity 310 formed therein, and the fiber cavity 310 is used for accommodating the optical fiber 20.
Specifically, the heat conductive member 300 may be a metal heat conductive member 300 such as copper or a copper alloy. The cavity for the cooling material to pass through is formed between the heat conducting member 300 and the inner surface of the housing 100, which can prevent the cooling material from directly flowing through the surface of the optical fiber 20 to affect the normal propagation of the laser light in the optical fiber 20. The scattered light of the optical fiber 20 in the optical fiber cavity 310 is projected onto the heat conducting member 300, and the heat generated by the scattered light is absorbed by the heat conducting member 300 and then conducted to the cooling material flowing through the cooling cavity 130, that is, the heat of the heat conducting member 300 is taken away by continuously introducing the cooling material to realize cooling.
Referring to fig. 1 and 2, in one embodiment, the material inlet 110 and the material outlet 120 are located at two opposite sides of the housing 100. Due to the structural arrangement, cooling materials flowing in from the feeding port 110 can fully flow through the cooling cavity 130 and then be discharged from the discharging port 120, so that more heat can be taken away, and the temperature of the laser output head 11 can be effectively reduced.
Referring to fig. 3 to 5, the present application further relates to a laser apparatus 10, which includes a laser device 12 and a laser output head 11 according to any one of the above embodiments. The laser device 12 is provided with an installation cavity 123, a feeding pipeline 121 and a discharging pipeline 122. The mounting cavity 123 is matched with the housing 100 of the laser output head 11 in shape and size, the mounting cavity 123 is used for mounting the laser output head 11, the feeding pipeline 121 is used for being communicated with the feeding port 110 of the laser output head 11 to feed cooling materials into the feeding port 110, and the discharging pipeline 122 is used for being communicated with the discharging port 120 of the laser output head 11 to receive the cooling materials discharged from the discharging port 120.
When the laser output head 11 of the laser apparatus 10 is installed in the laser device 12, the isolation assembly 200 on the housing 100 is matched with the laser device 12 to isolate the feeding port 110 and the discharging port 120 on the surface of the housing 100, so as to ensure that the feeding pipeline 121 of the laser device 12 can input the cooling material into the cooling cavity 130 of the housing 100 along the feeding port 110, and the discharging pipeline 122 can receive the cooling material discharged from the discharging port 120. Such a structure can prevent the cooling material that should enter the cooling cavity 130 from the material inlet 110 from leaking to the material outlet 120 along the gap between the laser device 12 and the laser output head 11, and also prevent the cooling material discharged from the material outlet 120 from leaking to the material inlet 110 along the gap between the laser device 12 and the laser output head 11. In other words, the isolation assembly 200 ensures one-way circulation of the cooling material, so that the cooling material can accurately and efficiently enter and exit the cooling cavity 130, and the cooling efficiency of the cooling material on the housing 100 is improved.
In some embodiments, the laser output head 11 may be detachably connected to the laser device 12 by screwing, clipping, etc., which facilitates maintenance or replacement of the device. In other embodiments, the laser output head 11 and the laser device 12 may be integrally formed.
In some embodiments, the inlet conduit 121 and the outlet conduit 122 may be separately fabricated components that are implanted into the laser device 12 after fabrication. Alternatively, the material for the inlet pipe 121 and the outlet pipe 122 may include, but is not limited to, metal materials such as aluminum alloy, brass, and the like, and may also be other non-metal materials.
In one embodiment, the laser apparatus 12 is further provided with a barrel 124 in communication with the discharge duct 122, the barrel 124 being adapted to eject the cooled material from the muzzle of the barrel 124. The laser device 10 may be a laser welding gun, for example, when the cooling material is cooling gas such as argon gas or nitrogen gas, when a user needs to perform laser processing, the user only needs to hold the laser welding gun to emit laser to process a target object, and the cooling gas can be simultaneously ejected from the muzzle of the gun barrel 124 and cover around the target object to isolate oxygen, prevent smoke or splashed particles from damaging the welding gun lens, and the like. Compared with the traditional laser processing mode, the laser welding gun can realize the synchronous processing of laser processing and auxiliary gas application, and is more convenient to operate.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Where clearly defined and limited, the terms "fixed", "mounted", "connected", and the like are to be construed broadly and may include, for example, mechanical and electrical connections; can be fixedly connected, can also be detachably connected or integrated; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It will be understood that when an element is referred to as being "on," "disposed on" or "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "length", "width", "thickness", "axial", "radial", "circumferential", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
In the description herein, references to the description of "an embodiment," "other embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic description of the above terminology may not necessarily refer to the same embodiment or example. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
Claims (10)
1. A laser output head for mounting into a laser device, comprising:
the optical fiber cooling device comprises a shell, wherein a cooling cavity for accommodating optical fibers, a feeding port and a discharging port are formed in the shell, the feeding port is communicated with the cooling cavity and used for allowing cooling materials to enter the cooling cavity for cooling, and the discharging port is used for discharging the cooling materials out of the cooling cavity;
the isolation assembly is arranged on the shell and used for being matched with the laser device to separate the feeding port from the discharging port.
2. The laser output head as claimed in claim 1, wherein the isolation assembly includes a first sealing ring sleeved on the housing, the first sealing ring is located between the inlet and the outlet and adapted to abut against and cooperate with an inner surface of the laser device to separate the inlet from the outlet.
3. The laser output head as claimed in claim 2, wherein the isolation assembly further comprises a second sealing ring and a third sealing ring, the second sealing ring and the third sealing ring are sleeved on the housing and are used for being in abutting fit with the inner surface of the laser device, the second sealing ring is located on one side of the feed port, which is far away from the first sealing ring, and the third sealing ring is located on one side of the discharge port, which is far away from the first sealing ring.
4. The laser output head as claimed in claim 2, wherein a first limiting groove is formed on an outer surface of the housing, the first limiting groove is located between the feeding port and the discharging port, the first sealing ring is embedded in the first limiting groove, and the first limiting groove is in limiting fit with the first sealing ring to limit the movement of the first sealing ring in the axial direction of the housing.
5. The laser output head as claimed in claim 4, wherein the first limiting groove extends annularly along the circumference of the housing.
6. The laser output head according to any one of claims 1 to 5, wherein the outer surface of the housing is formed with a feeding guide groove and a discharging guide groove which are not communicated with each other, the feeding guide groove is communicated with the feeding port, the discharging guide groove is communicated with the discharging port, the feeding guide groove is used for guiding the cooling material to move along the feeding guide groove into the feeding port, and the discharging guide groove is used for guiding the cooling material discharged from the discharging port to move along the discharging guide groove.
7. The laser output head as claimed in claim 4, wherein the feed guide groove and the discharge guide groove are both annular extending along the circumferential direction of the housing.
8. The laser output head according to any one of claims 1 to 5, characterized by comprising at least one of the following features:
the feeding port and the discharging port are positioned on two opposite sides of the shell;
the laser output head further comprises a heat conducting piece arranged in the cooling cavity, an optical fiber cavity is formed in the heat conducting piece, and the optical fiber cavity is used for accommodating the optical fiber.
9. Laser equipment, characterized in that, includes laser device and the laser output head of any one of claims 1 to 8, be equipped with installation cavity, feeding pipeline and ejection of compact pipeline in the laser device, the installation cavity is used for holding the laser output head, the feeding pipeline be used for with the pan feeding mouth intercommunication of laser output head is in order to with the cooling material input the pan feeding mouth, ejection of compact pipeline be used for with the discharge gate intercommunication of laser output head is in order to receive from the discharge gate discharge cooling material.
10. The laser apparatus of claim 9, wherein the laser device further comprises a barrel in communication with the discharge duct, the barrel configured to eject the cooled material from a muzzle of the barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111253186.8A CN114024190B (en) | 2021-10-27 | 2021-10-27 | Laser output head and laser equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111253186.8A CN114024190B (en) | 2021-10-27 | 2021-10-27 | Laser output head and laser equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114024190A true CN114024190A (en) | 2022-02-08 |
| CN114024190B CN114024190B (en) | 2024-04-30 |
Family
ID=80057856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111253186.8A Active CN114024190B (en) | 2021-10-27 | 2021-10-27 | Laser output head and laser equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114024190B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024082554A1 (en) * | 2022-10-17 | 2024-04-25 | 宁德时代新能源科技股份有限公司 | Welding apparatus |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101169205A (en) * | 2007-11-19 | 2008-04-30 | 韶关液压件厂有限公司 | High pressure high speed rotation joint |
| CN201575250U (en) * | 2009-12-11 | 2010-09-08 | 苏州有色金属研究院有限公司 | Novel swivel joint provided with soft floating ring sealing structure |
| JP2011099395A (en) * | 2009-11-06 | 2011-05-19 | Kobe Steel Ltd | Steam compressor |
| CN103350466A (en) * | 2013-05-21 | 2013-10-16 | 宁波君灵模具技术有限公司 | Mold cooling system |
| CN203463845U (en) * | 2013-08-29 | 2014-03-05 | 福建省闽旋科技股份有限公司 | Multi-pass rotary surface seal rotary joint |
| CN103872573A (en) * | 2014-04-04 | 2014-06-18 | 成都微深科技有限公司 | Half-reverse-flow-type high-strength carbon dioxide laser device |
| CN204700747U (en) * | 2015-04-27 | 2015-10-14 | 蓝思科技（湘潭）有限公司 | A kind of polishing ramming head device with internal cooling system |
| CN204704517U (en) * | 2015-04-27 | 2015-10-14 | 蓝思科技（湘潭）有限公司 | A kind of swivel joint |
| CN105071201A (en) * | 2015-09-07 | 2015-11-18 | 北京镭海激光科技有限公司 | Newly-structured carbon dioxide laser tube |
| CN107332100A (en) * | 2017-08-09 | 2017-11-07 | 光惠（上海）激光科技有限公司 | A kind of easily removable and washable laser export head of water-cooled that function is detected with output light path and light power |
| CN207051541U (en) * | 2017-05-19 | 2018-02-27 | 大族激光科技产业集团股份有限公司 | A kind of Optical fiber plug |
| CN207651791U (en) * | 2017-11-29 | 2018-07-24 | 李鹤群 | A kind of high pressure activation carbon dioxide sealed type laser |
| CN208608525U (en) * | 2018-09-17 | 2019-03-15 | 光越科技(深圳)有限公司 | A kind of water-cooled high-power optical fiber collimator |
| CN209522865U (en) * | 2019-01-30 | 2019-10-22 | 中钢集团西安重机有限公司 | A kind of rotary joint with water-cooling structure |
| CN212412422U (en) * | 2020-06-16 | 2021-01-26 | 成都睿利精密制造有限公司 | Water-cooling main body structure of optical fiber output device |
-
2021
- 2021-10-27 CN CN202111253186.8A patent/CN114024190B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101169205A (en) * | 2007-11-19 | 2008-04-30 | 韶关液压件厂有限公司 | High pressure high speed rotation joint |
| JP2011099395A (en) * | 2009-11-06 | 2011-05-19 | Kobe Steel Ltd | Steam compressor |
| CN201575250U (en) * | 2009-12-11 | 2010-09-08 | 苏州有色金属研究院有限公司 | Novel swivel joint provided with soft floating ring sealing structure |
| CN103350466A (en) * | 2013-05-21 | 2013-10-16 | 宁波君灵模具技术有限公司 | Mold cooling system |
| CN203463845U (en) * | 2013-08-29 | 2014-03-05 | 福建省闽旋科技股份有限公司 | Multi-pass rotary surface seal rotary joint |
| CN103872573A (en) * | 2014-04-04 | 2014-06-18 | 成都微深科技有限公司 | Half-reverse-flow-type high-strength carbon dioxide laser device |
| CN204700747U (en) * | 2015-04-27 | 2015-10-14 | 蓝思科技（湘潭）有限公司 | A kind of polishing ramming head device with internal cooling system |
| CN204704517U (en) * | 2015-04-27 | 2015-10-14 | 蓝思科技（湘潭）有限公司 | A kind of swivel joint |
| CN105071201A (en) * | 2015-09-07 | 2015-11-18 | 北京镭海激光科技有限公司 | Newly-structured carbon dioxide laser tube |
| CN207051541U (en) * | 2017-05-19 | 2018-02-27 | 大族激光科技产业集团股份有限公司 | A kind of Optical fiber plug |
| CN107332100A (en) * | 2017-08-09 | 2017-11-07 | 光惠（上海）激光科技有限公司 | A kind of easily removable and washable laser export head of water-cooled that function is detected with output light path and light power |
| CN207651791U (en) * | 2017-11-29 | 2018-07-24 | 李鹤群 | A kind of high pressure activation carbon dioxide sealed type laser |
| CN208608525U (en) * | 2018-09-17 | 2019-03-15 | 光越科技(深圳)有限公司 | A kind of water-cooled high-power optical fiber collimator |
| CN209522865U (en) * | 2019-01-30 | 2019-10-22 | 中钢集团西安重机有限公司 | A kind of rotary joint with water-cooling structure |
| CN212412422U (en) * | 2020-06-16 | 2021-01-26 | 成都睿利精密制造有限公司 | Water-cooling main body structure of optical fiber output device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024082554A1 (en) * | 2022-10-17 | 2024-04-25 | 宁德时代新能源科技股份有限公司 | Welding apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114024190B (en) | 2024-04-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2547889B1 (en) | Optical monitoring system for a turbine engine | |
| RU2564534C2 (en) | Plasma torch | |
| RU2719381C2 (en) | Cooling nozzles for plasma burner and co-operating systems and methods | |
| CN110323658B (en) | Laser output head and laser | |
| CN114024190A (en) | Laser output head and laser equipment | |
| US9234432B2 (en) | Gas turbine and turbine stationary blade for same | |
| US20120161554A1 (en) | cooling system for a high density power motor, in particular an axial-flux motor | |
| EP3139476B1 (en) | Motor with heat dissipation structure | |
| US20110169225A1 (en) | Mechanical seal assembly with integrated heat transfer unit | |
| US8770589B2 (en) | Shaft-seal device for high-temperature fluid | |
| EP2312124A2 (en) | Sealing arrangement for use with gas turbine engine | |
| JP2018501108A (en) | Laser beam emitting device suitable for use in a contaminated environment with a removable sheath for removably receiving an optical unit | |
| EP2554907B1 (en) | Combustor and gas turbine | |
| CN110932062A (en) | Laser energy absorption device | |
| JP5833426B2 (en) | End contact type mechanical seal | |
| KR20170088588A (en) | Air blower for vehicle | |
| RU2573072C2 (en) | Burner nozzle and coal gasification plant | |
| JP2022530231A (en) | Mechanical sealing device and pump device used especially for high temperature media | |
| AU2009339813B2 (en) | Motor pump unit | |
| JP7484688B2 (en) | Cooling structure for bearing device | |
| CN210247127U (en) | Plasma generator | |
| RU219629U1 (en) | DEVICE FOR PROTECTION OF SUPERVISION CAMERA WITH COOLING | |
| CN210789251U (en) | Annular spraying structure for electric spindle | |
| CN220982460U (en) | Temperature measuring device | |
| CN113078774A (en) | Cooling structure and driving device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |