CN216264045U - Air-cooled handheld laser welding gun - Google Patents
Air-cooled handheld laser welding gun Download PDFInfo
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- CN216264045U CN216264045U CN202122486606.9U CN202122486606U CN216264045U CN 216264045 U CN216264045 U CN 216264045U CN 202122486606 U CN202122486606 U CN 202122486606U CN 216264045 U CN216264045 U CN 216264045U
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Abstract
The utility model relates to the technical field of laser welding and discloses an air-cooled handheld laser welding gun. The utility model relates to a hand-held laser welding gun, comprising: casing, fixed block, optical module and optic fibre beam combiner, handheld portion of casing and barrel portion, the fixed block setting is equipped with installation passageway, second air inlet and first gas passage in handheld portion, and optic fibre beam combiner wears to establish in handheld portion and installation passageway, and optical module sets up in the barrel portion, is equipped with the second gas passage between optical module and the barrel portion, second gas passage and first gas passage intercommunication. According to the air-cooled handheld laser welding gun, the first air inlet of the handheld part, the second air inlet and the first air channel of the fixed block, the second air channel between the optical module and the gun barrel part and the outlet channel of the gun head form the cooling air channel in the shell, and the flowing air takes away heat of the optical fiber beam combiner, the fixed block and the optical module, so that the whole heat dissipation and cooling of the welding gun are realized.
Description
Technical Field
The embodiment of the utility model relates to the technical field of laser welding, in particular to an air-cooled handheld laser welding gun.
Background
Laser welding is an efficient precision welding method using a laser beam with high energy density as a heat source, and has been successfully applied to precision welding of micro and small parts due to its unique advantages.
The laser welding gun is used as a part of novel laser welding equipment and has the characteristics of flexibility and convenience. The laser output head is directly arranged in the handheld welding gun, can be used in places where a plurality of large machines or robots cannot be constructed, has unique advantages and is more and more valued by people. Because the heat of the laser is large, the laser output head needs to be cooled during use.
However, the traditional hand-held laser welding gun adopts the design of the whole water-cooled fiber laser and a water-cooled welding head, so that the volume and the weight of the gun body are increased, and the gun body is inconvenient to hold; and the equipped circulating water tank has the characteristics of heavy weight, large volume and the like, is inconvenient to move in use, and limits the use environment of the welding gun.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an air-cooled handheld laser welding gun to solve the problems in the background art.
The embodiment of the utility model provides an air-cooled handheld laser welding gun, which comprises: the optical fiber combiner comprises a shell, a fixed block, an optical module and an optical fiber combiner;
the casing is the rifle type, includes: a hand-held portion and a barrel portion;
the end part of the handheld part is provided with a rear end cover, the rear end cover is provided with an optical fiber inlet and a first air inlet, the end part of the gun tube part is provided with a front end cover and a gun head, the gun head is provided with an outlet channel, and the outlet channel is communicated with the inner cavity of the gun tube part;
the fixed block is arranged in the handheld part and is provided with an installation channel, a second air inlet and a first air channel;
the optical fiber combiner is arranged in the optical fiber inlet and the installation channel in a penetrating mode and used for emitting laser beams;
the optical module is arranged in the gun barrel part and is used for focusing a laser beam to an outlet of the gun head;
the first gas channel is communicated with the second gas inlet, the second gas inlet is communicated with the first gas inlet, and the first gas inlet is used for being connected with an external gas source;
and a second gas channel is arranged between the optical module and the gun tube part and communicated with the first gas channel.
Based on the scheme, the air-cooled handheld laser welding gun comprises a shell, a fixed block, an optical module and an optical fiber combiner, wherein the shell comprises: the optical fiber bundle combiner comprises a handheld portion and a gun barrel portion, a fixing block is arranged in the handheld portion, an installation channel, a second air inlet and a first gas channel are arranged on the fixing block, the optical fiber bundle combiner is arranged in the installation channel of a shell and the fixing block in a penetrating mode, an optical module is arranged in the gun barrel portion, a second gas channel is arranged between the optical module and the gun barrel portion, and the second gas channel is communicated with a first gas channel opening. According to the air-cooled handheld laser welding gun, the first air inlet of the rear end cover, the second air inlet and the first air channel of the fixed block, the second air channel between the optical module and the gun barrel part and the outlet channel of the gun head form a cooling air channel in the shell, air enters from the first air inlet and flows along the cooling air channel, and is discharged from the outlet of the gun head, the flowing air takes away heat of the optical fiber beam combiner, the fixed block and the optical module, the whole heat dissipation and cooling of the welding gun are realized, the gun body is light in weight and convenient to hold; and need not be equipped with the water tank, the convenient removal has increased suitability and adaptability.
In one possible approach, the optical module includes: the device comprises a sealed cabin, a collimating mirror, a reflecting mirror and a focusing mirror;
the sealed cabin is provided with a light inlet which is communicated with the mounting channel and used for allowing laser beams to enter the sealed cabin;
the collimating mirror, the reflecting mirror and the focusing mirror are sequentially arranged in the sealed bin, the collimating mirror is used for shaping the laser beam, the reflecting mirror is used for reflecting the laser beam to the focusing mirror, and the focusing mirror is used for focusing the laser beam to the outlet of the gun head.
In one possible solution, the optical module further comprises: a red light emitter;
the red light emitter is arranged on the sealing bin and used for indicating the position of the laser beam.
In a possible solution, the fixing block is provided with a clamping groove at the installation channel;
the sealed cabin is in light inlet department is equipped with the protrusion piece, the protrusion piece is used for imbedding in the draw-in groove.
In one possible embodiment, a sealing ring is arranged between the protruding block and the fixing block.
In a possible solution, the focal length of the collimating mirror is 16mm, and the focal length of the focusing mirror is 107 mm.
In one possible embodiment, a spiral absorber is provided on the inner side wall of the installation channel.
In one possible solution, the barrel portion is provided with a viewing window.
In a feasible scheme, the fixed block is provided with a gas connector at the second air inlet, and the gas connector is arranged in the first air inlet in a penetrating manner and is used for being connected with an external air source.
In a possible solution, the optical fiber combiner is a direct fused biconical multi-mode combiner, and a glass tube portion of the optical fiber combiner is arranged in the installation channel in a penetrating manner.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of an air-cooled hand-held laser welding gun in an embodiment of the present invention;
FIG. 2 is a schematic internal view of a laser welding gun in an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a laser welding gun in an embodiment of the present invention;
FIG. 4 is a schematic diagram of an optical module in an embodiment of the utility model;
FIG. 5 is a schematic view of a fixing block according to an embodiment of the present invention;
fig. 6 is a schematic cross-sectional view of a fixing block in an embodiment of the present invention.
Reference numbers in the figures:
1. a housing; 101. a rear end cap; 102. a front end cover; 11. a hand-held portion; 111. an optical fiber entrance; 112. A first air inlet; 12. a barrel portion; 121. a gun head; 122. an observation window; 2. a fixed block; 21. installing a channel; 22. a second air inlet; 23. a first gas passage; 24. a card slot; 25. a gas joint; 26. A spiral absorber; 3. an optical module; 31. sealing the bin; 311. a light inlet; 312. a protruding block; 32. A collimating mirror; 33. a mirror; 34. a focusing mirror; 35. a red light emitter;
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the indicated orientations and positional relationships based on the drawings for convenience in describing and simplifying the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model.
In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication connection; either directly or indirectly through intervening media, either 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.
The technical solution of the present invention will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
As described in the background of the present application, a laser welding gun, as a component of a novel laser welding apparatus, has the characteristics of flexibility and convenience. The laser output head is directly arranged in the handheld welding gun, can be used in places where a plurality of large machines or robots cannot be constructed, has unique advantages and is more and more valued by people. Because the heat of laser is big, in the use, need carry out heat dissipation cooling to laser output head and welding rifle.
The inventor of the application finds that the traditional hand-held laser welding gun adopts the design of a complete water-cooled fiber laser and a water-cooled welding head, so that the volume and the weight of the gun body are increased, and the gun body is inconvenient to hold; and the equipped circulating water tank has the characteristics of heavy weight, large volume and the like, is inconvenient to move in use, and limits the use environment of the welding gun.
In order to solve the above problems, the inventor of the present application proposes a technical solution of the present application, and specific embodiments are as follows:
fig. 1 is a schematic view of an air-cooled handheld laser welding gun in an embodiment of the present invention, fig. 2 is a schematic view of the inside of the laser welding gun in an embodiment of the present invention, fig. 3 is a schematic cross-sectional view of the laser welding gun in an embodiment of the present invention, fig. 4 is a schematic view of an optical module in an embodiment of the present invention, fig. 5 is a schematic cross-sectional view of a fixing block in an embodiment of the present invention, and fig. 6 is a schematic cross-sectional view of the fixing block in an embodiment of the present invention.
As shown in fig. 1 to 6, the air-cooled hand-held laser welding gun of the present embodiment includes: the optical fiber combiner comprises a shell 1, a fixed block 2, an optical module 3 and an optical fiber combiner.
The housing 1 is provided with a rear cover 101 at an end (bottom) of the hand-held portion 11, and the rear cover 101 is provided with a fiber inlet 111 and a first air inlet 112 penetrating therethrough.
The shell 1 is provided with a front end cover 102 on one side of the barrel part 12 far away from the handheld part 11, the front end cover 102 is connected with a gun head 121, the gun head 121 is provided with an outlet channel, and the outlet channel of the gun head 121 is communicated with the inner cavity of the barrel part 12.
The fixing block 2 is disposed in the hand-held portion 11 of the housing 1, a through-going installation channel 21 is disposed at the center of the fixing block 2, and the installation channel 21 corresponds to the optical fiber inlet 111 of the rear end cap 101.
An optical fiber combiner (not shown in the figure) is arranged in the optical fiber inlet 111 of the rear end cover 101 in a penetrating manner, the front end of the optical fiber combiner is arranged in the installation channel 21 of the fixed block 2 in a penetrating manner, the optical fiber combiner is connected with the fixed block 2 in a sealing manner through a sealing element, and the optical fiber combiner is connected with external control equipment and used for outputting laser beams.
The optical module 3 is arranged in the barrel part 12, and the optical module 3 focuses the laser beam emitted by the optical fiber beam combiner to the outlet of the gun head 121, so as to realize laser welding of the workpiece.
The end of the fixed block 2 close to the rear end cover 101 is provided with a second air inlet 22, and the second air inlet 22 of the fixed block 2 is communicated with the first air inlet 112 of the rear end cover 101. The fixed block 2 is provided with a plurality of first gas passages 23 at the outer side of the mounting passage 21, the plurality of first gas passages 23 are communicated with the second gas inlet 22, and the first gas passages 23 form a gas outlet at the other side of the fixed block 2.
A gap is left between the outer wall of the optical module 3 and the inner wall of the barrel part 12, a second gas channel is formed between the optical module 3 and the barrel part 12, the second gas channel is communicated with the first gas channel 23 of the fixed block 2, and the second gas channel is communicated with the outlet channel of the gun head 121.
In this embodiment, the first air inlet of the rear end cover, the second air inlet of the fixed block, the first air channel, the second air channel between the optical module and the barrel portion, and the outlet channel of the gun head form a cooling air duct as shown by the dotted line in fig. 3 in the housing. The first air inlet of the rear end cover is connected with external air sources such as an air pump, air enters the first air channel from the second air inlet of the fixing block and enters the second air channel, and is finally discharged from the outlet channel of the gun head, and the air takes away heat of the optical fiber combiner, the fixing block and the optical module in the flowing process, so that the heat dissipation and cooling of the optical fiber combiner, the fixing block and the optical module are realized.
Through the above-mentioned content difficult discovery, the handheld laser welding rifle of air-cooled of this embodiment, through setting up casing, fixed block, optical module and optic fibre beam combiner, the casing includes: the optical fiber bundle combiner comprises a handheld portion and a gun barrel portion, a fixing block is arranged in the handheld portion, an installation channel, a second air inlet and a first gas channel are arranged on the fixing block, the optical fiber bundle combiner is arranged in the installation channel of a shell and the fixing block in a penetrating mode, an optical module is arranged in the gun barrel portion, a second gas channel is arranged between the optical module and the gun barrel portion, and the second gas channel is communicated with a first gas channel opening. According to the air-cooled handheld laser welding gun, the first air inlet of the rear end cover, the second air inlet and the first air channel of the fixed block, the second air channel between the optical module and the gun barrel part and the outlet channel of the gun head form a cooling air channel in the shell, air enters from the first air inlet and flows along the cooling air channel, and is discharged from the outlet of the gun head, the flowing air takes away heat of the optical fiber beam combiner, the fixed block and the optical module, the whole heat dissipation and cooling of the welding gun are achieved, the gun body is light in weight and convenient to hold; and need not be equipped with the water tank, the convenient removal has increased suitability and the adaptability that the welding rifle used.
Optionally, as shown in fig. 3 and 4, in the air-cooled handheld laser welding gun in the present embodiment, the optical module 3 includes: a sealed cabin 31, a collimating mirror 32, a reflecting mirror 33 and a focusing mirror 34.
The sealed cabin 31 is provided with a light inlet 311 at one side close to the fixed block 2, the light inlet 311 of the sealed cabin 31 is communicated with the installation channel 21 of the fixed block 2, and the laser beam emitted by the optical fiber beam combiner enters the cavity of the sealed cabin 31 from the light inlet 311.
The collimating mirror 32, the reflecting mirror 33 and the focusing mirror 34 are sequentially arranged in the cavity of the sealed bin 31 along the traveling path of the laser beam, the collimating mirror 32 shapes the laser beam (with a certain diffusion angle) sent by the optical fiber beam combiner to enable the laser beam to be a parallel laser beam, the reflecting mirror 33 is used for changing the traveling direction of the laser beam and reflecting the laser beam to the focusing mirror 34, and the focusing mirror 34 focuses the parallel laser beam to the outlet of the gun head 121 to achieve laser welding of a workpiece.
Further, in the air-cooled handheld laser welding gun of the present embodiment, the optical module 3 further includes: a red light emitter 35.
The red light emitter 35 is provided on the sealed chamber 31.
During the use, ruddiness emitter 35 sends ruddiness to make ruddiness focus on the exit of rifle head 121, be used for instructing the focus position of laser, make the welding more accurate, convenient.
Further, as shown in fig. 5 and 6, in the air-cooled handheld laser welding gun in the present embodiment, a clamping groove 24 is provided on an end surface of the fixing block 2 on a side close to the sealing chamber 31 of the optical module 3, and the clamping groove 24 is located at the installation passage 21.
The sealing bin 31 is provided with a protruding block 312 at the light inlet 311, and the protruding block 312 of the sealing bin 31 is embedded in the clamping groove 24 of the fixing block 2, so that the positioning connection between the sealing bin 31 and the fixing block 2 is realized.
Further, in the air-cooled handheld laser welding gun in the embodiment, the sealing ring is arranged between the protruding block 312 of the sealing bin 31 and the fixing block 2, so that the sealing bin 31 and the fixing block 2 are more sealed, and the air is prevented from entering the sealing bin 31 to interfere with the light path and the lens.
Further, in the air-cooled handheld laser welding gun of the present embodiment, the focal length of the collimating lens 32 is 16mm, and the focal length of the focusing lens 34 is 107 mm.
When handheld laser welding rifle was in actual use, the width and the length of laser focus can be adjusted through the focus size of collimating mirror and focusing mirror, and in this embodiment, the focus F of collimating mirror is 16mm, and the focus F of focusing mirror is 107 mm.
Optionally, in the air-cooled handheld laser welding gun in this embodiment, the viewing window 122 is disposed on a side of the barrel portion 12 away from the gun head 121, and the state inside the barrel portion 12 can be viewed in real time through the viewing window 122.
Optionally, in the air-cooled handheld laser welding gun in this embodiment, the fixing block 2 is provided with the gas connector 25 at the second gas inlet 22, the gas connector 25 is inserted into the first gas inlet 112 of the rear end cover 101 and protrudes out of the end surface of the rear end cover 101, and the gas connector 25 is connected with an external gas source through a connecting hose, so that the use is facilitated.
Optionally, in the air-cooled handheld laser welding gun of the present embodiment, the fixing block 2 is provided with a spiral absorber 26 on the circumferential inner wall of the installation passage 21. The spiral absorber 26 increases the heat absorption area, so that more heat is taken away by the air when the air flows, the optical fiber combiner can better dissipate and cool the heat during working, and the cooling effect of the optical fiber combiner is improved.
Further, in the air-cooled handheld laser welding gun in the embodiment, the optical fiber combiner is a direct fusion biconical multi-mode combiner.
The cone part of the direct melting biconical multi-mode beam combiner is sleeved with a glass protection pipe, and the glass protection pipe part of the direct melting biconical multi-mode beam combiner is arranged in the installation channel 21 of the fixed block 2 in a penetrating mode and is cooled through flowing gas during use.
In the present invention, unless otherwise explicitly specified or limited, the first feature "on" or "under" the second feature may be directly contacting the first feature and the second feature or indirectly contacting the first feature and the second feature through an intermediate.
Also, a first feature "on," "above," and "over" a second feature may mean that the first feature is directly above or obliquely above the second feature, or that only the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lower level than the second feature.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples," or the like, means 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 utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A laser welding rifle is handed to air-cooled, its characterized in that includes: the optical fiber combiner comprises a shell, a fixed block, an optical module and an optical fiber combiner;
the casing is the rifle type, includes: a hand-held portion and a barrel portion;
the end part of the handheld part is provided with a rear end cover, the rear end cover is provided with an optical fiber inlet and a first air inlet, the end part of the gun tube part is provided with a front end cover and a gun head, the gun head is provided with an outlet channel, and the outlet channel is communicated with the inner cavity of the gun tube part;
the fixed block is arranged in the handheld part and is provided with an installation channel, a second air inlet and a first air channel;
the optical fiber combiner is arranged in the optical fiber inlet and the installation channel in a penetrating mode and used for emitting laser beams;
the optical module is arranged in the gun barrel part and is used for focusing a laser beam to an outlet of the gun head;
the first gas channel is communicated with the second gas inlet, the second gas inlet is communicated with the first gas inlet, and the first gas inlet is used for being connected with an external gas source;
and a second gas channel is arranged between the optical module and the gun tube part and communicated with the first gas channel.
2. The air-cooled hand-held laser welding gun of claim 1, wherein said optics module comprises: the device comprises a sealed cabin, a collimating mirror, a reflecting mirror and a focusing mirror;
the sealed cabin is provided with a light inlet which is communicated with the mounting channel and used for allowing laser beams to enter the sealed cabin;
the collimating mirror, the reflecting mirror and the focusing mirror are sequentially arranged in the sealed bin, the collimating mirror is used for shaping the laser beam, the reflecting mirror is used for reflecting the laser beam to the focusing mirror, and the focusing mirror is used for focusing the laser beam to the outlet of the gun head.
3. The air-cooled hand-held laser welding gun of claim 2, wherein said optics module further comprises: a red light emitter;
the red light emitter is arranged on the sealing bin and used for indicating the position of the laser beam.
4. The air-cooled hand-held laser welding gun of claim 3, wherein said mounting block is provided with a slot at said mounting channel;
the sealed cabin is in light inlet department is equipped with the protrusion piece, the protrusion piece is used for imbedding in the draw-in groove.
5. The air-cooled hand-held laser welding gun of claim 4, wherein a sealing ring is disposed between said protruding block and said fixed block.
6. The air-cooled hand-held laser welding gun of claim 2, wherein said collimating mirror has a focal length of 16mm and said focusing mirror has a focal length of 107 mm.
7. The air-cooled hand-held laser welding gun of claim 1, wherein a spiral absorber is provided on the inside wall of said mounting channel.
8. The air-cooled hand-held laser welding gun of claim 1, wherein said barrel portion is provided with a viewing window.
9. The air-cooled handheld laser welding gun of claim 1, characterized in that the fixed block is provided with a gas connector at the second gas inlet, and the gas connector is arranged in the first gas inlet in a penetrating way and is used for being connected with an external gas source.
10. The air-cooled hand-held laser welding gun according to any one of claims 1 to 9, wherein the optical fiber combiner is a direct fusion biconical multi-mode combiner, and a glass tube portion of the optical fiber combiner is inserted into the installation channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122486606.9U CN216264045U (en) | 2021-10-15 | 2021-10-15 | Air-cooled handheld laser welding gun |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122486606.9U CN216264045U (en) | 2021-10-15 | 2021-10-15 | Air-cooled handheld laser welding gun |
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| CN216264045U true CN216264045U (en) | 2022-04-12 |
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| CN202122486606.9U Active CN216264045U (en) | 2021-10-15 | 2021-10-15 | Air-cooled handheld laser welding gun |
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