CN218903979U - Coaxial temperature measurement visual strip-shaped light spot XY adjustable laser welding head - Google Patents
Coaxial temperature measurement visual strip-shaped light spot XY adjustable laser welding head Download PDFInfo
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- CN218903979U CN218903979U CN202122094828.6U CN202122094828U CN218903979U CN 218903979 U CN218903979 U CN 218903979U CN 202122094828 U CN202122094828 U CN 202122094828U CN 218903979 U CN218903979 U CN 218903979U
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Abstract
The utility model relates to the field of laser welding, in particular to a coaxial temperature measurement visual bar-shaped facula XY adjustable laser welding head, wherein a laser emission cylinder, a first three-way pipe structure, a second three-way pipe structure and a main body of an image acquisition cylinder are sequentially and linearly connected to form a linear cylinder structure; the first three-way pipe structure and the second three-way pipe structure are respectively connected with a laser incidence optical fiber and a temperature detection assembly, meanwhile, the image acquisition barrel is connected with the digital camera, and the second end of the temperature measuring lens barrel is connected with the infrared temperature measurement assembly; a reflecting lens is arranged in the reflecting tube barrel structure, and a first beam combining lens is arranged in the first tee pipe structure; the second three-way pipe structure is internally provided with a second beam combining lens, the cylindrical lens barrel is internally provided with a first focusing mechanism and a second focusing mechanism, the first focusing mechanism is loaded with an X-direction cylindrical lens, and the second focusing mechanism is loaded with a Y-direction cylindrical lens. The laser welding head can complete coaxial temperature measurement of a laser welding position, coaxial imaging of the welding position and planar shape adjustment of a welding light spot.
Description
Technical Field
The utility model relates to the field of laser welding, in particular to a coaxial temperature measurement visual bar-shaped light spot XY adjustable laser welding head.
Background
Laser welding is a highly efficient and precise welding method that uses a laser beam of high energy density as a heat source. The laser welding is one of important aspects of application of laser material processing technology, and is mainly used for welding thin-wall materials and low-speed welding in practical application, wherein the welding process belongs to heat conduction type, namely laser radiation is used for heating the surface of a workpiece, surface heat is diffused to the inside through heat conduction, and the workpiece is melted by controlling parameters such as the width, the energy, the peak power, the repetition frequency and the like of laser pulses, so that a specific molten pool is formed. Because of its unique advantages, it has been successfully applied to precision welding of micro and small parts.
In laser welding, the laser welding head functions singly. The first one has no coaxial temperature measurement, can not control the temperature of the welding spot, and easily causes the too high temperature Cheng Shaojiao of the welding spot and the too low temperature for desoldering. And secondly, coaxial imaging is not carried out, the welding spot position, particularly a tiny welding spot, is not monitored in the welding process, and the welding spot dislocation, the welding deviation and the like are easily caused. Thirdly, the production line often needs to replace different products, the welding spot positions of different products are different in height, and if the same focus is used for welding, the welding spot positions are defocused positions, so that the welding quality is affected.
Disclosure of Invention
In order to solve the problems, the coaxial temperature measurement visual bar-shaped light spot XY adjustable laser welding head provided by the utility model can complete coaxial temperature measurement of a laser welding position, can complete coaxial imaging of the welding position and can realize adjustment of a welding focus position.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the coaxial temperature measurement visual bar-shaped facula XY adjustable laser welding head comprises a laser incidence barrel, a laser emission optical fiber, a reflecting barrel structure, a laser emission barrel, a first three-way pipe structure, a second three-way pipe structure, an image acquisition barrel, a temperature measurement barrel and a cylindrical barrel, wherein the first end of the first three-way pipe structure is connected with the laser emission barrel, the second end of the first three-way pipe structure is connected with the first end of the reflecting barrel structure, the third end of the first three-way pipe structure is connected with the first end of the second three-way pipe structure, the second end of the second three-way pipe structure is connected with the first end of the temperature measurement barrel, and the main bodies of the laser emission barrel, the first three-way pipe structure, the second three-way pipe structure and the image acquisition barrel are sequentially and linearly connected to form a linear barrel structure; the second end of the image acquisition cylinder is connected with a digital camera; the second end of the reflecting tube barrel structure is connected with the first end of the laser incidence tube through the cylindrical lens barrel, and the second end of the laser incidence tube is connected with the laser emitting optical fiber; the second end of the first end of the temperature measuring lens barrel is connected with an infrared temperature measuring component;
the reflecting tube structure is internally provided with a reflecting lens which is used for reflecting the light rays emitted by the laser emitting optical fiber to the first three-way tube structure, the first three-way tube structure is internally provided with a first light-splitting lens which is used for emitting the light rays emitted by the laser emitting optical fiber to the laser emitting tube through the first light-splitting lens; a second beam splitting lens is arranged in the second three-way pipe structure and is used for reflecting an infrared pipe formed by light rays emitted by the laser emission cylinder to an infrared temperature measuring assembly;
the first focusing mechanism and the second focusing mechanism are arranged in the cylindrical lens barrel, the first focusing mechanism is loaded with an X-direction cylindrical lens, the second focusing mechanism is loaded with a Y-direction cylindrical lens, and the axial positions of the X-direction cylindrical lens and the Y-direction cylindrical lens in the cylindrical lens barrel can be adjusted by the first focusing mechanism and the second focusing mechanism.
Preferably, a collimating lens group for adjusting the collimating position of the light emitted by the laser emitting optical fiber is arranged in the laser incident cylinder.
Preferably, the collimator lens group has an optical lens including at least three convex lenses.
Preferably, a focusing lens group for focusing the light emitted by the laser emitting optical fiber is arranged in the laser emitting cylinder.
Preferably, the first and second spectroscopic lenses are both one-way reflecting lenses.
Preferably, a achromatic imaging lens group for achromatizing light reflected to the digital camera is provided in the image pickup tube.
Preferably, a square light X-direction shaping lens is arranged between the collimating lens group and the first end of the laser incident cylinder.
Preferably, a square light Y-direction shaping lens is arranged in the cylindrical lens barrel at one side close to the incident end.
Preferably, the emitting end of the laser emitting cylinder is provided with an annular illumination light source for supplementing light to the laser welding focus position.
Preferably, the laser emission tube emission end is provided with a protection mirror for protecting the laser emission port.
The beneficial effects of the utility model are as follows:
1. because the infrared temperature measurement component passes through the reflection effect of second beam split lens, the infrared ray that forms when the optical fiber model just can weld in laser ejection welding department passes first beam split lens to gather infrared temperature measurement component by the reflection of second beam split lens, make infrared temperature measurement component form the coaxial temperature measurement effect of butt joint position, infrared temperature measurement component feeds back the welding point temperature often, guarantees the welding point temperature invariable, and then has avoided unable control welding point temperature, causes the welding point temperature too high Cheng Shaojiao easily, the too low drawback of unwelding of temperature.
2. Because the digital camera is directly towards the welding position, the digital camera and the welding position form coaxial imaging, and because of the multi-piece achromatic imaging effect of the achromatic imaging lens group, the digital camera can directly and clearly see the image of the welding position, so that the image of the welding position is directly available, and the condition of the welding position is conveniently observed.
3. Because the first focusing mechanism, the X-direction cylindrical mirror, the second focusing mechanism and the Y-direction cylindrical mirror are matched, the X-direction cylindrical mirror and the Y-direction cylindrical mirror can be driven to axially move in the cylindrical lens barrel respectively by the first focusing mechanism and the second focusing mechanism, spherical aberration and one-dimensional amplification functions can be effectively reduced according to the X-direction cylindrical mirror and the Y-direction cylindrical mirror, welding light spots are rectangular, and the size of the rectangular welding light spots in the X, Y direction can be adjusted.
The welding head is exquisite in design and compact in structure, and has excellent laser focusing adjustment capability and laser welding position detection capability due to the combination of a plurality of groups of optical lenses arranged in the welding head.
Drawings
Fig. 1 is a schematic structural diagram of a coaxial temperature measurement visual bar-shaped light spot XY adjustable laser welding head.
Fig. 2 is a cross-sectional view of a coaxial thermometry vision bar-shaped light spot XY-adjustable laser welding head of the present utility model.
The reference numerals include:
the laser beam laser device comprises a 10-laser incidence cylinder, a 11-laser emitting optical fiber, a 12-square X-ray shaping lens, a 13-collimating lens group, a 131-first collimating lens, a 132-second collimating lens, a 20-reflecting tube structure, a 21-reflecting lens, a 30-laser emitting cylinder, a 31-focusing lens group, a 311-first focusing lens, a 312-second focusing lens, a 313-third focusing lens, a 32-annular illumination light source, a 33-protecting lens, a 40-first three-way tube structure, a 41-first light splitting lens, a 50-second three-way tube structure, a 51-second light splitting lens, a 60-image acquisition tube, a 61-digital camera, a 62-achromatizing imaging lens group, a 70-temperature measuring lens, a 71-infrared temperature measuring assembly interface, an 80-cylindrical lens, an 81-square Y-ray shaping lens, an 82-first focusing mechanism, an 83-X-cylindrical lens, an 84-second mechanism and an 85-Y-directional cylindrical lens.
Detailed Description
The present utility model will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 and fig. 2, the coaxial temperature measurement visual bar-shaped light spot XY adjustable laser welding head provided in this embodiment includes a laser incident tube 10, a laser emitting optical fiber 11, a reflecting tube structure 20, a laser emitting tube 30, a first three-way tube structure 40, a second three-way tube structure 50, an image collecting tube 60, a temperature measuring tube 70 and a cylindrical lens barrel 80, wherein a first end of the first three-way tube structure is connected with the laser emitting tube 30, a second end of the first three-way tube structure is connected with a first end of the reflecting tube structure 20, a third end of the first three-way tube structure is connected with a first end of the second three-way tube structure 50, a second end of the second three-way tube structure 50 is connected with a first end of the temperature measuring tube 70, a third end of the second three-way tube structure 50 is connected with a first end of the image collecting tube 60, and main bodies of the laser emitting tube 30, the first three-way tube structure 40, the second three-way tube structure 50 and the image collecting tube 60 are sequentially connected in a straight line to form a straight line tube structure; a second end of the image acquisition barrel 60 is connected with a digital camera 61; the second end of the reflecting tube barrel structure 20 is connected with the first end of the laser incidence barrel 10 through the cylindrical lens barrel 80, and the second end of the laser incidence barrel 10 is connected with the laser emitting optical fiber 11; the second end of the temperature measuring lens barrel 70 is connected with an infrared temperature measuring component; a reflecting mirror 21 is arranged in the reflecting tube structure 20, the reflecting mirror 21 is used for reflecting the light rays emitted by the laser emitting optical fiber 11 to the first three-way tube structure 40, a first light splitting mirror 41 is arranged in the first three-way tube structure 40, and the first light splitting mirror 41 is used for emitting the light rays emitted by the laser emitting optical fiber 11 to the laser emitting tube 30 through the first light splitting mirror 41; a second beam-splitting lens 51 is arranged in the second three-way pipe structure 50, and the second beam-splitting lens 51 is used for reflecting an infrared pipe formed by light rays emitted by the laser emission tube 30 to an infrared temperature measuring component; a first focusing mechanism 82 and a second focusing mechanism 84 are installed in the cylindrical lens barrel 80, the first focusing mechanism 82 carries an X-direction cylindrical lens 83, the second focusing mechanism 84 carries a Y-direction cylindrical lens 85, and the first focusing mechanism 82 and the second focusing mechanism 84 can adjust the axial positions of the X-direction cylindrical lens 83 and the Y-direction cylindrical lens 85 in the cylindrical lens barrel 80. In the present embodiment, the second end of the temperature measuring lens barrel 70 is an infrared temperature measuring component interface 71, and the infrared temperature measuring component interface 71 is used for installing the above-mentioned infrared temperature measuring component.
In this embodiment, due to the cooperation of the first focusing mechanism 82, the X-directional cylindrical mirror 83, the second focusing mechanism 84, and the Y-directional cylindrical mirror 85, the first focusing mechanism 82 and the second focusing mechanism 84 can drive the X-directional cylindrical mirror 83 and the Y-directional cylindrical mirror 85 to move axially in the cylindrical lens barrel 80, and according to the X-directional cylindrical mirror 83 and the Y-directional cylindrical mirror 85, spherical aberration and one-dimensional amplification functions can be effectively reduced, the welding spot shape is rectangular, and the size of the rectangular welding spot in the X, Y direction can be adjusted.
The second end of the laser incidence barrel 10 is provided with an adjusting mechanism for adjusting the position of the laser emitting optical fiber 11 in the axial direction of the laser incidence barrel 10. The laser incidence barrel 10 is internally provided with a collimating lens group 13 for adjusting the collimating position of the light emitted by the laser emitting optical fiber 11. The collimator lens group 13 has an optical lens including at least three convex lenses. A focusing lens group 31 for focusing light emitted from the laser emitting optical fiber 11 is provided in the laser emitting tube 30. The first and second spectroscopic lenses 41 and 51 are both one-way reflection lenses 21. The image pickup tube 60 is provided with a achromatic imaging lens group 62 for achromatizing light reflected to the digital camera 61.
The specific structure and operation of the present laser welding head are described in detail below.
Specifically, in this embodiment, the laser incidence barrel 10 is used as the main body of the welding laser incidence assembly, the second end of the laser incidence barrel 10 is connected with the laser emitting optical fiber 11, so that the laser emitted by the laser emitting optical fiber 11 connected with the second end of the laser incidence barrel 10 is injected into the collimating lens group 13 through the laser incidence barrel 10, the collimating lens group 13 in this embodiment adopts a combination of convex lens, concave lens and concave lens, the collimating treatment on the laser pipeline is formed by injecting the laser into the collimating lens group 13, and the outer ring surface of the laser incidence barrel 10 has an annular tooth structure which is arranged at intervals and is used as a heat dissipation fin of the laser incidence barrel 10.
The main body structure of the reflective tube structure 20 is tubular and the cross section of the reflective tube structure 20 is substantially triangular, wherein the mirror plate 21 is located in the reflective tube structure 20. In this embodiment, the reflecting surface of the reflecting mirror 21 forms an angle of 45 ° with the direction of the laser emitting optical fiber 11, so that the light emitted from the laser emitting optical fiber 11 enters the first tee structure 40 through the reflecting mirror 21.
In this embodiment, the first three-way structure is internally provided with the first beam splitter lens 41, the light emitted by the laser beam is totally reflected by the first beam splitter lens 41, the reflecting surface of the first beam splitter lens 41 is parallel to the reflecting lens 21, so that the laser beam reflected by the reflecting lens 21 is reflected by the first beam splitter lens 41 and then is emitted into the laser emission tube 30, and the focusing lens group 31 is arranged in the laser emission tube 30, so that the laser beam emitted by the laser beam is finally emitted out of the laser emission tube 30 by the focusing lens group 31 after being adjusted by the collimating lens group 13, reflected by the reflecting lens 21 and reflected by the first beam splitter lens 41. Because of the focusing effect of the focusing optic, the laser light exiting the focus barrel forms a focal point under the focus barrel formed by the welder laser light, as shown in fig. 2. The above is the traveling path of the laser beam emitted from the laser beam.
In this embodiment, the first tee structure 40 functions as a first aspect of communicating with the laser light entry barrel, and a second aspect of returning the welding light to the laser light entry barrel again at the focal point of the welding laser light, so as to facilitate subsequent detection and observation of the returned light.
Specifically, in the present embodiment, one end of the second tee structure 50 is connected to the first tee structure 40, and the other two ends are respectively connected to the image capturing barrel 60 and the temperature measuring barrel 70.
In the present embodiment, the second three-way structure 50 is internally provided with the second beam splitter lens 51, and in the present embodiment, the second beam splitter lens 51 is perpendicular to the first beam splitter lens 41 and is perpendicular to the angle of the reflecting lens 21. The light formed by welding formed when two welding bodies are welded at the laser focus, that is, the welding position, is injected into the laser emission tube 30, the first beam splitting lens 41 fully projects the light formed by welding, so that the light formed by welding can be input into the second three-way tube structure 50 basically without loss, after the light formed by welding enters the second three-way tube structure 50, the second beam splitting lens 51 in the second three-way tube structure 50 carries out partial reflection and partial projection treatment on the light, wherein part of infrared rays are reflected by the second beam splitting lens 51 and then injected into the temperature measuring tube 70, and the rest part of the infrared rays are injected into the image acquisition tube 60.
The infrared temperature measuring component arranged in the temperature measuring lens barrel 70 can detect the temperature of the laser welding position in an infrared detection mode. If the temperature is too high or too low, namely the temperature of the laser welding position exceeds a threshold value, an overtemperature alarm is formed. After the light beam entering the image pickup tube 60 is subjected to the decoloring processing by the decoloring imaging lens group 62, the light beam is picked up by the digital camera 61, and the digital camera 61 can observe the laser welding position, that is, the welding condition at the laser focus.
Because the infrared temperature measurement subassembly passes through the reflection effect of second beam splitter lens 51, the infrared ray that forms when the welding of laser emission optic fibre 11 model just can the welding department passes first beam splitter lens 41 to gather the infrared temperature measurement subassembly by the reflection of second beam splitter lens 51, make the infrared temperature measurement subassembly form the coaxial temperature measurement effect to the welding position, the welding point temperature is fed back often to the infrared temperature measurement subassembly, guarantees the welding point temperature invariable, and then has avoided unable control welding point temperature, causes the too high Cheng Shaojiao of welding point temperature easily, the too low drawback of desoldering of temperature.
Because the digital camera 61 is directly directed toward the welding position, the digital camera 61 and the welding position form coaxial imaging, and because of the multi-piece achromatic imaging effect of the achromatic imaging lens group 62, the digital camera 61 can directly and clearly see the image of the welding position, so that the image of the welding position is directly available, and the condition of the welding position is conveniently observed.
Due to the arrangement of the adjusting mechanism in the laser incidence barrel 10, the laser emitting optical fiber 11 can axially move, in particular, due to the axial movement of the laser emitting optical fiber 11, the distance between the laser emitting optical fiber 11 and the collimating lens group 13 is changed, so that the standard value light spot size is changed, and finally, the focus position is changed.
A square X-ray shaping lens 12 is arranged between the collimating lens group 13 and the first end of the laser incidence barrel 10. The square-beam X-ray shaping lens 12 is used to adjust the X-ray shape of the laser welding spot in the laser incidence barrel 10. Similarly, a square light Y-direction shaping lens 81 is provided inside the cylindrical lens barrel 80 on the side near the incident end. The square light Y-direction shaping lens 81 is used to adjust the Y-direction shape of the laser welding spot in the cylindrical lens barrel 80.
The laser emission tube 30 has an annular illumination light source 32 at its emission end for supplementing light to the laser welding focus position. The laser emission tube 30 is provided at its emission end with a protection mirror 33 for protecting the laser emission port.
In addition, in the laser incidence barrel 10, the collimating lens group 13 provided with the collimating lens group 13 is a plurality of collimating lenses, and in this embodiment, the collimating lens group 13 includes a first collimating lens 131 and a second collimating lens 132.
In the laser emission barrel 30, the focus lens group 31 includes a plurality of sets of focus lenses, and in this embodiment, the focus lens group 31 includes a first focus lens 311, a second focus lens 312, and a third focus lens 313.
In this laser welding head, because the infrared temperature measurement subassembly passes through the reflection effect of second beam splitter lens 51, the infrared ray that forms when the welding of laser emission optic fibre 11 model just can the welding department passes first beam splitter lens 41 to gather the infrared temperature measurement subassembly by the reflection of second beam splitter lens 51, make the infrared temperature measurement subassembly form the coaxial temperature measurement effect to the welding position, the welding point temperature is fed back often to the infrared temperature measurement subassembly, guarantee that the welding point temperature is invariable, and then avoided unable control welding point temperature, cause welding point temperature too high Cheng Shaojiao easily, the too low drawback of desoldering of temperature. In addition, since the digital camera 61 is directly directed toward the welding position, the digital camera 61 and the welding position form coaxial imaging, and due to the multi-piece achromatic imaging effect of the achromatic imaging lens group 62, the digital camera 61 can directly and clearly see the image of the welding position, so that the image of the welding position is directly available, and the situation of the welding position can be conveniently observed.
The foregoing is merely exemplary of the present utility model, and many variations may be made in the specific embodiments and application scope of the utility model by those skilled in the art based on the spirit of the utility model, as long as the variations do not depart from the gist of the utility model.
Claims (10)
1. Coaxial temperature measurement vision bar facula XY adjustable laser welding head, its characterized in that: the laser device comprises a laser incidence barrel, a laser emitting optical fiber, a reflecting barrel structure, a laser emitting barrel, a first three-way pipe structure, a second three-way pipe structure, an image acquisition barrel, a temperature measuring barrel and a cylindrical barrel, wherein the first end of the first three-way pipe structure is connected with the laser emitting barrel, the second end of the first three-way pipe structure is connected with the first end of the reflecting barrel structure, the third end of the first three-way pipe structure is connected with the first end of the second three-way pipe structure, the second end of the second three-way pipe structure is connected with the first end of the temperature measuring barrel, the third end of the second three-way pipe structure is connected with the first end of the image acquisition barrel, and the main bodies of the laser emitting barrel, the first three-way pipe structure, the second three-way pipe structure and the image acquisition barrel are sequentially and linearly connected to form a linear barrel structure; the second end of the image acquisition cylinder is connected with a digital camera; the second end of the reflecting tube barrel structure is connected with the first end of the laser incidence tube through the cylindrical lens barrel, and the second end of the laser incidence tube is connected with the laser emitting optical fiber; the second end of the first end of the temperature measuring lens barrel is connected with an infrared temperature measuring component;
the reflecting tube structure is internally provided with a reflecting lens which is used for reflecting the light rays emitted by the laser emitting optical fiber to the first three-way tube structure, the first three-way tube structure is internally provided with a first light-splitting lens which is used for emitting the light rays emitted by the laser emitting optical fiber to the laser emitting tube through the first light-splitting lens; a second beam splitting lens is arranged in the second three-way pipe structure and is used for reflecting an infrared pipe formed by light rays emitted by the laser emission cylinder to an infrared temperature measuring assembly;
the first focusing mechanism and the second focusing mechanism are arranged in the cylindrical lens barrel, the first focusing mechanism is loaded with an X-direction cylindrical lens, the second focusing mechanism is loaded with a Y-direction cylindrical lens, and the axial positions of the X-direction cylindrical lens and the Y-direction cylindrical lens in the cylindrical lens barrel can be adjusted by the first focusing mechanism and the second focusing mechanism.
2. The coaxial thermometry visual bar spot XY tunable laser welding head according to claim 1, wherein: and a collimating lens group for adjusting the collimating position of the emitted light of the laser emitting optical fiber is arranged in the laser incident cylinder.
3. The coaxial thermometry visual bar spot XY tunable laser welding head according to claim 2, wherein: the collimating lens group has an optical lens including at least three convex lenses.
4. The coaxial thermometry visual bar spot XY tunable laser welding head according to claim 1, wherein: and a focusing lens group used for focusing the light rays emitted by the laser emitting optical fiber is arranged in the laser emitting cylinder.
5. The coaxial thermometry visual bar spot XY tunable laser welding head according to claim 1, wherein: the first light-splitting lens and the second light-splitting lens are unidirectional reflection lenses.
6. The coaxial thermometry visual bar spot XY tunable laser welding head according to claim 1, wherein: the image acquisition cylinder is internally provided with a decoloring imaging lens group for decoloring the light reflected to the digital camera.
7. The coaxial thermometry visual bar spot XY tunable laser welding head according to claim 2, wherein: and a square light X-ray shaping lens is arranged between the collimating lens group and the first end of the laser incident cylinder.
8. The coaxial thermometry visual bar spot XY tunable laser welding head according to claim 1, wherein: and a square light Y-direction shaping lens is arranged at one side, close to the incident end, inside the cylindrical lens barrel.
9. The coaxial thermometry visual bar spot XY tunable laser welding head according to claim 1, wherein: the laser emission tube is provided with an annular illumination light source at the emission end for supplementing light to the laser welding focus position.
10. The coaxial thermometry visual bar spot XY tunable laser welding head according to claim 1, wherein: the laser emission tube emission end is provided with a protection mirror for protecting the laser emission port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122094828.6U CN218903979U (en) | 2021-09-01 | 2021-09-01 | Coaxial temperature measurement visual strip-shaped light spot XY adjustable laser welding head |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122094828.6U CN218903979U (en) | 2021-09-01 | 2021-09-01 | Coaxial temperature measurement visual strip-shaped light spot XY adjustable laser welding head |
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| CN218903979U true CN218903979U (en) | 2023-04-25 |
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| CN202122094828.6U Active CN218903979U (en) | 2021-09-01 | 2021-09-01 | Coaxial temperature measurement visual strip-shaped light spot XY adjustable laser welding head |
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- 2021-09-01 CN CN202122094828.6U patent/CN218903979U/en active Active
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