CN216502957U - Laser welding head - Google Patents
Laser welding head Download PDFInfo
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- CN216502957U CN216502957U CN202122339979.3U CN202122339979U CN216502957U CN 216502957 U CN216502957 U CN 216502957U CN 202122339979 U CN202122339979 U CN 202122339979U CN 216502957 U CN216502957 U CN 216502957U
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Abstract
The utility model discloses a laser welding head which comprises a welding body, a thread light guide cylinder, a thread transmission part, a focusing system and a nozzle assembly, wherein the welding body is provided with a plurality of welding holes; a laser beam channel is formed in the welding body and used for injecting laser beams, and the welding body is provided with a communication port communicated with the laser beam channel; the threaded light guide cylinder is arranged on the welding body, a first light guide channel is arranged in the threaded light guide cylinder, and the first light guide channel is used for allowing a laser beam to pass through; the screw thread driving part is connected with the screw thread light guide cylinder in a screw thread way and is provided with a second light guide channel, and the second light guide channel is used for the laser beam to pass through; the focusing system is arranged on the threaded transmission part and is provided with a focusing lens, and the focusing lens is used for allowing the laser beam to pass through; the nozzle assembly is arranged on the focusing system and is provided with a light outlet channel for the laser beam to pass through. The technical scheme of the utility model provides the laser welding head with high debugging efficiency.
Description
Technical Field
The utility model relates to the technical field of laser welding, in particular to a laser welding head.
Background
In laser welding, a material is locally heated in a micro-area by using a laser with high energy density, and the energy radiated by the laser is diffused into the material through heat conduction to melt the material to form a specific molten pool. The laser welding head is a key component of the laser welding equipment, and the focal length and the defocusing amount are adjusted by using the laser welding head, so that the proper spot size, the ideal welding effect and the welding depth can be obtained.
The traditional laser welding head usually uses an optical fiber collimating lens adjusting device to adjust the defocusing amount, and particularly changes the focal length by manually adjusting the distance between two collimating lenses so as to achieve the purpose of changing the defocusing amount, thereby obtaining a proper light spot size, an ideal welding effect and welding depth; however, in this process, the focal length is constantly changed, and when a sensitive material is welded, after the focal length is changed, the corresponding power parameter also needs to be reset and adjusted, so that the debugging efficiency of the device is low.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a laser welding head, and aims to provide a laser welding head with high debugging efficiency.
In order to achieve the above object, the present invention provides a laser welding head, comprising:
the laser welding device comprises a welding body, wherein a laser beam channel is formed in the welding body and used for emitting laser beams, and a communication port communicated with the laser beam channel is formed in the welding body;
the threaded light guide cylinder is arranged on one side of the welding body, provided with the communication port, and a first light guide channel communicated with the communication port is arranged in the threaded light guide cylinder and is used for a laser beam to pass through;
the threaded transmission part is in threaded connection with one end, far away from the welding body, of the threaded light guide cylinder and is provided with a second light guide channel communicated with the first light guide channel, and the second light guide channel is used for allowing a laser beam to pass through;
the focusing system is arranged at one end, far away from the threaded light guide cylinder, of the threaded transmission part and is provided with a focusing lens, and the focusing lens is used for allowing a laser beam to pass through; and
and the nozzle assembly is arranged at one end, far away from the thread transmission part, of the focusing system and is provided with a light outlet channel for the laser beam to pass through.
In an embodiment of the utility model, an external thread is disposed on an outer side wall of the threaded light guide cylinder, an internal thread is disposed on a side wall of the second light guide channel, and the threaded light guide cylinder is connected to the threaded transmission member through the external thread and the internal thread.
In an embodiment of the utility model, the outer side wall of the threaded light guide cylinder is provided with scale marks.
In an embodiment of the present invention, the welding body includes:
the laser beam channel is formed in the shell, and the shell is also provided with the communication port;
the reflection system is arranged on the shell and is provided with a reflection lens, and the reflection lens is arranged in the laser beam channel and is used for reflecting the laser beam passing through the laser beam channel to the threaded light guide cylinder.
In an embodiment of the present invention, the reflection system includes:
the first reflection assembly is arranged on the shell and is provided with a first lens, and the first lens is arranged in the laser beam channel;
the second reflection assembly is arranged on the shell and is provided with a second lens, and the second lens is arranged in the laser beam channel; and
the third reflection assembly is arranged on the shell and is provided with a third lens, and the third lens is arranged in the laser beam channel;
the first lens is used for reflecting the laser beam passing through the laser beam channel to the second lens, so that the second lens reflects the laser beam to the third lens, the third lens reflects the laser beam to the threaded light guide cylinder, and the first lens, the second lens and the third lens form the reflection lens.
In an embodiment of the present invention, the first reflection assembly includes a first swing motor and the first mirror, the first swing motor is disposed on the housing, and the first mirror is disposed on a swing portion of the first swing motor to swing with the swing portion of the first swing motor;
and/or, the second reflection assembly comprises a second swing motor and a second lens, the second swing motor is arranged on the shell, and the second lens is arranged on the swing part of the second swing motor so as to swing along with the swing part of the second swing motor.
In an embodiment of the utility model, the welding body further includes a collimating lens system, the collimating lens system is disposed in the housing and has the collimating lens, and the collimating lens is used for allowing the laser beam to pass through, so that the laser beam is emitted to the reflecting lens after passing through the collimating lens.
In an embodiment of the utility model, the focusing system comprises:
the switching fixing seat is connected to the threaded transmission part; and
the focusing structure is connected to the switching fixing seat and is provided with the focusing lens.
In one embodiment of the present invention, the nozzle assembly includes:
the protective lens module is arranged at one end, far away from the threaded transmission part, of the focusing system, and is provided with a first channel and a protective lens, and the protective lens is arranged in the first channel and used for a laser beam to pass through; and
the nozzle is arranged at one end, far away from the focusing system, of the protection lens module and is provided with a second channel, the first channel and the second channel form the light emitting channel, and the laser beam sequentially penetrates through the focusing lens and the protection lens and then is ejected out through the second channel of the nozzle.
In an embodiment of the present invention, the protective lens module includes:
the protective lens structure is arranged at one end, far away from the threaded transmission part, of the focusing system and is provided with a first light beam channel and the protective lens; and
the protective gas guide cylinder is arranged at one end, far away from the focusing system, of the protective lens structure and provided with a second light beam channel, the first light beam channel and the second light beam channel form the first channel, and the side wall of the protective gas guide cylinder is provided with a gas inlet communicated with the second light beam channel, so that inert gas enters the second light beam channel from the gas inlet.
According to the laser welding head, when a workpiece is subjected to laser welding, a laser beam firstly enters the laser beam channel of the welding body, then sequentially enters the first light guide channel of the threaded light guide cylinder and the second light guide channel of the threaded transmission part through the communication port, the laser beam emitted by the second light guide channel passes through the focusing lens of the focusing system for focusing, and finally the focused laser beam is emitted to the workpiece through the light emitting channel of the nozzle assembly, so that the workpiece can be subjected to laser welding;
in the process, when the focal length or the defocusing amount of the laser welding head needs to be adjusted to obtain a proper spot size, a proper welding effect and a proper welding depth, the threaded light guide cylinder is in threaded connection with the threaded transmission part, so that the threaded transmission part can be manually rotated, the focusing system and the nozzle assembly are driven by the threaded transmission part to move towards or away from the workpiece together, and the defocusing amount (the distance between the focal point and the workpiece) of the laser welding head can be adjusted, so that the proper spot size, the proper welding effect and the proper welding depth can be obtained; in the adjustment process, the distance between the focusing lens and the focus is unchanged, namely the focal length of the laser welding head is unchanged, so that the problem that the debugging efficiency of equipment is low due to the fact that the corresponding power parameter needs to be reset and adjusted after the focal length is changed when sensitive materials are welded due to the fact that the focal length is continuously changed can be solved. That is, the technical scheme of the utility model provides the laser welding head with high debugging efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a laser welding head according to an embodiment of the present invention;
FIG. 2 is a front view of one embodiment of a laser welding head of the present invention;
FIG. 3 is a rear view of one embodiment of a laser welding head of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
FIG. 5 is an exploded view of one embodiment of a laser welding head of the present invention;
fig. 6 is a partially enlarged view of fig. 5 at B.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The present invention provides a laser welding head 100, and aims to provide a laser welding head 100 with high debugging efficiency.
The specific structure of the laser welding head 100 of the present invention will be described below:
referring to fig. 1 to fig. 3 and fig. 5 in combination, in an embodiment of the laser welding head 100 of the present invention, the laser welding head 100 includes a welding body 10, a threaded light guide cylinder 20, a threaded transmission member 30, a focusing system 40, and a nozzle assembly 50;
a laser beam channel is formed in the welding body 10 and used for emitting laser beams, and a communication port communicated with the laser beam channel is formed in the welding body 10;
the threaded light guide cylinder 20 is arranged on one side of the welding body 10, where the communication opening is formed, a first light guide channel 21 communicated with the communication opening is arranged in the threaded light guide cylinder 20, and the first light guide channel 21 is used for a laser beam to pass through;
the threaded transmission member 30 is connected to one end of the threaded light guide cylinder 20 far away from the welding body 10 in a threaded manner, and has a second light guide channel 31 communicated with the first light guide channel 21, and the second light guide channel 31 is used for allowing a laser beam to pass through;
the focusing system 40 is arranged at one end of the threaded transmission member 30 far away from the threaded light guide cylinder 20, and the focusing system 40 is provided with a focusing lens for a laser beam to pass through;
the nozzle assembly 50 is disposed at an end of the focusing system 40 away from the screw driver 30, and has a light exit channel for passing the laser beam.
It can be understood that, when the laser welding head 100 of the present invention performs laser welding on a workpiece, a laser beam firstly enters the laser beam channel of the welding body 10, and then sequentially enters the first light guide channel 21 of the threaded light guide cylinder 20 and the second light guide channel 31 of the threaded transmission member 30 through the communication port, the laser beam emitted from the second light guide channel 31 passes through the focusing lens of the focusing system 40 for focusing, and the focused laser beam finally exits to the workpiece through the light exit channel of the nozzle assembly 50, so that the workpiece can be subjected to laser welding;
in the process, when the focal length or the defocusing amount of the laser welding head 100 needs to be adjusted to obtain a proper spot size, a proper welding effect and a proper welding depth, the threaded light guide cylinder 20 is in threaded connection with the threaded transmission member 30, so that the defocusing amount (the distance between the focal point and the workpiece) of the laser welding head 100 can be adjusted by manually rotating the threaded transmission member 30 and further driving the focusing system 40 and the nozzle assembly 50 to move towards or away from the workpiece together through the threaded transmission member 30, and the proper spot size, the proper welding effect and the proper welding depth can be obtained; in the adjustment process, the distance between the focusing lens and the focal point is unchanged, that is, the focal length of the laser welding head 100 is unchanged, so that the problem that the debugging efficiency of the equipment is low due to the fact that the corresponding power parameter needs to be reset and adjusted after the focal length is changed when sensitive materials are welded due to the fact that the focal length is continuously changed can be solved. That is, the present invention provides a laser welding head 100 with high debugging efficiency.
In addition, in the in-process of adjustment defocusing volume, threaded connection's relation is being kept throughout between screw light guide tube 20 and the screw drive spare 30, and the mode through adopting screw thread regulation can make screw drive spare 30 little at the swing of removal in-process to effectively guarantee to adjust the precision, and realize accurate regulation through turning into linear motion with circular motion between the two. In addition, in the process of adjusting the defocusing amount, other auxiliary software and electronic components are not needed, the stroke adjustment of the defocusing amount can reach +/-5 mm, and the adjustment range is large.
In this embodiment, before laser welding a workpiece, the output head of the fiber laser is first sleeved on at least a portion of the welding body 10, so that the laser beam emitted from the output head of the fiber laser is smoothly emitted into the laser beam channel of the welding body 10.
Specifically, the screw light guide tube 20 and the welding body 10, and the screw transmission member 30 and the focusing system 40 can be assembled by screws, fasteners, and the like.
In the practical application process, the threaded light guide cylinder 20 is in threaded connection with the threaded transmission member 30, specifically, an external thread is arranged on the outer side wall of the threaded light guide cylinder 20, and an internal thread is arranged on the side wall of the second light guide channel 31 of the threaded transmission member 30; alternatively, the side wall of the first light guide channel 21 of the screw light guide cylinder 20 may be provided with an internal thread, and the outer side wall of the screw drive member 30 may be provided with an external thread.
Further, referring to fig. 6, in an embodiment of the laser welding head 100 of the present invention, an outer sidewall of the threaded light guide cylinder 20 is provided with an external thread 22, a sidewall of the second light guide channel 31 is provided with an internal thread 311, and the threaded light guide cylinder 20 is connected to the threaded transmission member 30 through the external thread 22 and the internal thread 311.
When adjusting the relative position between the threaded light guide cylinder 20 and the threaded transmission member 30, the threaded light guide cylinder 20 and the welding body 10 are fixed, and the threaded transmission member 30 needs to be moved, so that the threaded transmission member 30 is at least partially sleeved on the threaded light guide cylinder 20 by providing the external thread 22 on the external side wall of the threaded light guide cylinder 20 and providing the internal thread 311 on the side wall of the second light guide channel 31 of the threaded transmission member 30, so that a person can hold the external side of the threaded transmission member 30 and rotate the threaded transmission member 30, thereby adjusting the relative position between the threaded transmission member 30 and the threaded light guide cylinder 20.
Further, referring to fig. 4, in an embodiment of the laser welding head 100 of the present invention, the outer sidewall of the threaded light guide cylinder 20 is provided with scale marks 23. So set up, at the in-process of adjustment defocus, the user can be through observing the change of control defocus through the scale mark 23 of screw light guide 20 lateral wall department.
Specifically, the scale 23 may be formed by laser etching or cutting or the like at the outer side wall of the threaded light guide barrel 20.
Further, referring to fig. 1 to 3 and 5 in combination, in an embodiment of the laser welding head 100 of the present invention, the welding body 10 includes a housing 11 and a reflection system 12; the laser beam channel is formed in the shell 11, and the shell 11 is further provided with the communication port; the reflection system 12 is disposed in the housing 11 and has a reflection lens, and the reflection lens is disposed in the laser beam channel to reflect the laser beam passing through the laser beam channel to the threaded light guide cylinder 20.
With this arrangement, after the laser beam enters the laser beam channel of the housing 11, the laser beam can be reflected by the reflective lens of the reflective system 12 to change the path of the laser beam, so that the laser beam can be smoothly reflected to the threaded light guiding barrel 20 through the communication opening.
Further, referring to fig. 2 and 3 in combination, in an embodiment of the laser welding head 100 of the present invention, the reflection system 12 includes a first reflection element 121, a second reflection element 122, and a third reflection element 123; the first reflection assembly 121 is disposed in the housing 11 and has a first lens, and the first lens is disposed in the laser beam channel; the second reflection assembly 122 is disposed in the housing 11 and has a second lens, and the second lens is disposed in the laser beam channel; the third reflection assembly 123 is disposed in the housing 11 and has a third mirror, and the third mirror is disposed in the laser beam channel;
the first lens is configured to reflect the laser beam passing through the laser beam channel to the second lens, so that the second lens reflects the laser beam to the third lens, and the third lens reflects the laser beam to the threaded light guide cylinder 20, and the first lens, the second lens, and the third lens form the reflection lens.
With this arrangement, after the laser beam enters the laser beam channel of the housing 11, the laser beam can sequentially pass through the first lens of the first reflection assembly 121, the second lens of the second reflection assembly 122, and the third lens of the third reflection assembly 123, and at least one of the first lens, the second lens, and the third lens can swing, so that the path of the laser beam can be changed by swinging at least one of the first lens, the second lens, and the third lens to present a desired welding shape (such as a circular shape, a straight line shape, an 8-shaped shape, and the like) on the welding surface of the workpiece, thereby satisfying the welding requirement.
Further, referring to fig. 2 and fig. 3 in combination, in an embodiment of the laser welding head 100 of the present invention, the first reflection assembly 121 includes a first swing motor and the first mirror, the first swing motor is disposed on the housing 11, and the first mirror is disposed on a swing portion of the first swing motor to swing with the swing portion of the first swing motor.
So set up, first swing motor can drive first lens swing, alright change the reflection path of the laser beam through first lens as required, and then the welding surface epitheca of work piece demonstrates required welding shape.
Referring to fig. 2 and 3, in an embodiment of the laser welding head 100 of the present invention, the second reflection assembly 122 includes a second swing motor and the second mirror, the second swing motor is disposed on the housing 11, and the second mirror is disposed on a swing portion of the second swing motor to swing with the swing portion of the second swing motor.
So set up, the same, second swing motor can drive the swing of second lens, alright change the reflection path of the laser beam through the second lens as required, and then the welding surface epitheca of work piece demonstrates required welding shape.
Moreover, the third reflective component 123 is a total reflection lens, so that the total reflection lens can reflect all the laser beams reflected by the second lens into the threaded light guide cylinder 20, so as to reduce the energy loss of the laser beams.
Referring to fig. 1, fig. 2 and fig. 5, in an embodiment of the laser welding head 100 of the present invention, the welding body 10 further includes a collimating lens system 13, the collimating lens system 13 is disposed in the housing 11 and has the collimating lens, and the collimating lens is used for passing through a laser beam, so that the laser beam passes through the collimating lens and then is emitted to the reflecting lens.
With such an arrangement, the output head of the optical laser can be sleeved on the collimating lens system 13, so that the laser beam emitted from the output head of the optical laser smoothly passes through the collimating lens of the collimating lens system 13, and the laser beam is amplified by the collimating lens and then emitted into the laser beam channel of the housing 11.
Specifically, the collimating system includes a cylinder and collimating lenses, the cylinder is mounted on the housing 11, the collimating lenses are disposed inside the cylinder, and the laser beam is incident into the interior of the cylinder, passes through the collimating lenses, and then is incident into the laser beam passage of the housing 11.
In addition, the welding body 10 is further provided with a CCD observation system 14, and the CCD observation system 14 can be used for realizing accurate positioning of welding and observing the welding spot condition on the workpiece in real time.
Referring to fig. 1 to fig. 3 and fig. 5, in an embodiment of the laser welding head 100 of the present invention, the focusing system 40 includes a through fixing seat 41 and a focusing structure 42; the adapter fixing seat 41 is connected to the threaded transmission member 30; the focusing structure 42 is connected to the adaptor fixing base 41 and has the focusing lens. With this arrangement, the focusing mechanism 42 can be fixed on the screw driver 30 through the adaptor fixing base 41, so as to ensure the installation stability of the focusing system 40.
Moreover, an installation groove is formed on one side of the adapter fixing seat 41 facing the screw transmission member 30, the screw transmission member 30 is installed in the installation groove, and the focusing structure 42 is installed on one side of the adapter fixing seat 41 facing away from the screw light guide tube 20.
Referring to fig. 1 to fig. 3 and fig. 5 in combination, in an embodiment of the laser welding head 100 of the present invention, the nozzle assembly 50 includes a protective lens module 51 and a nozzle 52; the protective lens module 51 is disposed at one end of the focusing system 40 away from the threaded transmission member 30, and has a first channel and a protective lens, and the protective lens is disposed in the first channel and is used for a laser beam to pass through; the nozzle 52 is arranged at one end, far away from the focusing system 40, of the protective lens module 51 and is provided with a second channel, the first channel and the second channel form a light emitting channel, and laser beams sequentially penetrate through the focusing lens and the protective lens and then are emitted out through the second channel of the nozzle 52.
So set up, laser beam passes behind the focus lens, will jet into in the first passageway of protection lens module 51 to pass the protection lens in the first passageway, then the second passageway through nozzle 52 is outwards spout, in order to realize the welding, at this in-process, alright protect the focus lens in focusing system 40 through the protection lens among the protection lens module 51, and then guarantee laser welder head 100's welding precision.
Referring to fig. 1 to fig. 3 and fig. 5 in combination, in an embodiment of the laser welding head 100 of the present invention, the protective lens module 51 includes a protective lens structure 511 and a protective gas guiding cylinder 512; the protective lens structure 511 is disposed at an end of the focusing system 40 away from the screw driver 30, and has a first light beam channel and the protective lens; the protective gas guide cylinder 512 is disposed at one end of the protective lens structure 511, which is far away from the focusing system 40, and has a second light beam channel, the first light beam channel and the second light beam channel form the first channel, and an air inlet 5121 communicated with the second light beam channel is disposed on a side wall of the protective gas guide cylinder 512, so that the inert gas enters the second light beam channel through the air inlet 5121.
Because the inert gas can prevent the high-temperature metal from being invaded by the outside gas, the chemical property of the inert gas is very stable, and the inert gas does not participate in the reaction in the chemical reaction process of high temperature, high pressure and the like, and not only can the inert gas play a role in isolating active gas in the atmosphere, such as oxygen and the like, from participating in the reaction, thereby playing a role in protecting the pureness of the reaction in the welding process; in this way, during the laser welding process, the inert gas can enter the second beam path of the shielding gas guide cylinder 512 through the gas inlet 5121 and enter the second path of the nozzle 52 through the second beam path to blow toward the welding surface of the workpiece through the second path, so that the welding surface of the workpiece can be protected by the inert gas, and the welding surface of the workpiece can be prevented from being damaged by the external gas.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A laser welding head, comprising:
the laser welding device comprises a welding body, wherein a laser beam channel is formed in the welding body and used for emitting laser beams, and a communication port communicated with the laser beam channel is formed in the welding body;
the threaded light guide cylinder is arranged on one side of the welding body, provided with the communication port, and a first light guide channel communicated with the communication port is arranged in the threaded light guide cylinder and is used for a laser beam to pass through;
the threaded transmission part is in threaded connection with one end, far away from the welding body, of the threaded light guide cylinder and is provided with a second light guide channel communicated with the first light guide channel, and the second light guide channel is used for allowing a laser beam to pass through;
the focusing system is arranged at one end, far away from the threaded light guide cylinder, of the threaded transmission part and is provided with a focusing lens, and the focusing lens is used for allowing a laser beam to pass through; and
and the nozzle assembly is arranged at one end, far away from the thread transmission part, of the focusing system and is provided with a light outlet channel for the laser beam to pass through.
2. The laser welding head of claim 1 wherein the outer sidewall of the threaded light pipe has external threads and the sidewall of the second light pipe has internal threads, the threaded light pipe being threadedly connected to the threaded drive member via the external threads and the internal threads.
3. The laser welding head of claim 1 wherein the outer side wall of the threaded light pipe is provided with graduation marks.
4. The laser welding head of claim 1 wherein the welding body comprises:
the laser beam channel is formed in the shell, and the shell is also provided with the communication port;
the reflection system is arranged on the shell and is provided with a reflection lens, and the reflection lens is arranged in the laser beam channel and is used for reflecting the laser beam passing through the laser beam channel to the threaded light guide cylinder.
5. The laser welding head of claim 4 wherein the reflection system comprises:
the first reflection assembly is arranged on the shell and is provided with a first lens, and the first lens is arranged in the laser beam channel;
the second reflection assembly is arranged on the shell and is provided with a second lens, and the second lens is arranged in the laser beam channel; and
the third reflection assembly is arranged on the shell and is provided with a third lens, and the third lens is arranged in the laser beam channel;
the first lens is used for reflecting the laser beam passing through the laser beam channel to the second lens, so that the second lens reflects the laser beam to the third lens, the third lens reflects the laser beam to the threaded light guide cylinder, and the first lens, the second lens and the third lens form the reflection lens.
6. The laser welding head of claim 5 wherein the first reflection assembly includes a first swing motor and the first mirror, the first swing motor being disposed in the housing, the first mirror being disposed in a swing portion of the first swing motor to swing with the swing portion of the first swing motor;
and/or, the second reflection assembly comprises a second swing motor and a second lens, the second swing motor is arranged on the shell, and the second lens is arranged on the swing part of the second swing motor so as to swing along with the swing part of the second swing motor.
7. The laser welding head of claim 4 wherein the welding body further comprises a collimating lens system disposed in the housing and having a collimating lens for passing the laser beam therethrough such that the laser beam passes through the collimating lens and is directed toward the reflecting lens.
8. The laser welding head of claim 1 wherein the focusing system comprises:
the switching fixing seat is connected to the threaded transmission part; and
the focusing structure is connected to the switching fixing seat and is provided with the focusing lens.
9. The laser welding head of claim 1 wherein the nozzle assembly comprises:
the protective lens module is arranged at one end, far away from the threaded transmission part, of the focusing system, and is provided with a first channel and a protective lens, and the protective lens is arranged in the first channel and used for a laser beam to pass through; and
the nozzle is arranged at one end, far away from the focusing system, of the protection lens module and is provided with a second channel, the first channel and the second channel form the light emitting channel, and the laser beam sequentially penetrates through the focusing lens and the protection lens and then is ejected out through the second channel of the nozzle.
10. The laser welding head of claim 9 wherein the protective lens module comprises:
the protective lens structure is arranged at one end of the focusing system, which is far away from the threaded transmission part, and is provided with a first light beam channel and the protective lens; and
the protective gas guide cylinder is arranged at one end, far away from the focusing system, of the protective lens structure and provided with a second light beam channel, the first light beam channel and the second light beam channel form the first channel, and the side wall of the protective gas guide cylinder is provided with a gas inlet communicated with the second light beam channel, so that inert gas enters the second light beam channel from the gas inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122339979.3U CN216502957U (en) | 2021-09-26 | 2021-09-26 | Laser welding head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122339979.3U CN216502957U (en) | 2021-09-26 | 2021-09-26 | Laser welding head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216502957U true CN216502957U (en) | 2022-05-13 |
Family
ID=81520114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122339979.3U Active CN216502957U (en) | 2021-09-26 | 2021-09-26 | Laser welding head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216502957U (en) |
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2021
- 2021-09-26 CN CN202122339979.3U patent/CN216502957U/en active Active
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