CN215219329U - Shaping device of laser cladding light source with multiple groups of parallel beams - Google Patents
Shaping device of laser cladding light source with multiple groups of parallel beams Download PDFInfo
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- CN215219329U CN215219329U CN202121366314.5U CN202121366314U CN215219329U CN 215219329 U CN215219329 U CN 215219329U CN 202121366314 U CN202121366314 U CN 202121366314U CN 215219329 U CN215219329 U CN 215219329U
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Abstract
The utility model provides a shaping device of laser cladding light source of multiunit parallel beam, through the first meniscus lens L2 and the position of the two convex lens L3 of second lens group of adjusting, adjust as a whole first meniscus lens L2 and the two convex lens L3 of second, be convenient for realize the focusing function, the facula of output can correspondingly be adjusted, satisfy the thinking that the laser cladding product can obtain various energy distribution's facula demand to the requirement of facula completely, when having satisfied the demand of laser cladding product, be convenient for operate.
Description
Technical Field
The utility model relates to a semiconductor laser technical field, in particular to integer device of laser cladding light source of multiunit parallel beam.
Background
The laser cladding technology is realized by Gnanamutu for the first time in 1974, and then becomes the research focus of people and is also the development hotspot in the laser surface modification technology. The laser cladding technology is characterized in that powder for cladding is placed on the surface of a clad base body in various different powder feeding modes such as inner powder feeding or outer powder feeding, then the powder for cladding and the clad base body are simultaneously melted to form a molten pool through laser irradiation, then the molten pool is rapidly cooled to form a surface modification layer, the surface modification layer is good metallurgical bonding of the clad base body and a powder material, cracks and air holes do not exist, and the surface hardness, the fatigue resistance, the oxidation resistance, the wear resistance and the high performance of the base material can be obviously improved.
Compared with other surface modification technologies, laser cladding has the excellent characteristics of high energy density, high heating speed, small workpiece deformation, firm combination of the base material and the cladding coating, small coating structure and the like. In addition, through the combination of light path design and a robot, the laser cladding without dead angles in all directions can be basically realized in the industry, but because the existing processing parts have complex structures and strange shapes, the traditional Gaussian circular light spot can not meet the processing requirements in certain specific application scenes, and therefore, the light beam shaping technology is a key point for research in the laser cladding technology.
SUMMERY OF THE UTILITY MODEL
In view of this, there is a need to provide a shaping device for a laser cladding light source with multiple parallel beams, which meets the requirements of laser cladding products on the beams.
In order to solve the above problems, the utility model adopts the following technical proposal:
on the one hand, this application provides a shaping device of laser cladding light source of multiunit parallel beam, including optical objective, follow the optical axis direction of optical objective's camera lens still includes from the object plane end to the imaging plane according to the preface: the zoom lens comprises a first lens group with positive focal power, a diaphragm and a second lens group with positive focal power, wherein the first lens group at least comprises a plano-convex lens (L1), the second lens group sequentially comprises a first concave-convex lens (L2) and a second double-convex lens (L3) along the optical axis direction, and zooming is realized by adjusting the positions of the first concave-convex lens (L2) and the second double-convex lens (L3).
In some of these embodiments, the relative distance between the first meniscus (L2) and the second biconvex lens (L3) remains unchanged when the positions of the first meniscus (L2) and the second biconvex lens (L3) are adjusted.
In some embodiments, the lens is made of glass.
In some of the embodiments, the output spot size of the shaping device is between 8mm and 40mm, the distortion of the spot is controlled to be less than 2.5% in the full field of view during the process of adjusting the positions of the first meniscus lens (L2) and the second biconvex lens (L3), and the energy distribution of the spot presents a flat-top distribution.
On the other hand, the application also provides a shaping device of a laser cladding light source of a plurality of groups of parallel beams, which comprises an optical objective lens, wherein the shaping device comprises the following components from an object plane end to an imaging plane along the optical axis direction of a lens of the optical objective lens: a second lens group having positive optical power, the second lens group including a first meniscus lens (L2) and a second biconvex lens (L3) in order in an optical axis direction, zooming being achieved by adjusting positions of the first meniscus lens (L2) and the second biconvex lens (L3).
In some of these embodiments, the relative distance between the first meniscus (L2) and the second biconvex lens (L3) remains unchanged when the positions of the first meniscus (L2) and the second biconvex lens (L3) are adjusted.
In some of these embodiments, the energy of the output spot of the shaping device is M-shaped during the adjustment of the positions of the first meniscus lens (L2) and the second biconvex lens (L3).
In some embodiments, the lens is made of glass.
Adopt above-mentioned technical scheme, the utility model discloses the technological effect who realizes as follows:
the utility model provides a shaping device of laser cladding light source of multiunit parallel beam, through the first meniscus lens L2 and the position of the two convex lens L3 of second lens group of adjusting, adjust as a whole first meniscus lens L2 and the two convex lens L3 of second, be convenient for realize the focusing function, the facula of output can correspondingly be adjusted, satisfy the thinking that the laser cladding product can obtain various energy distribution's facula demand to the requirement of facula completely, when having satisfied the demand of laser cladding product, be convenient for operate.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention or the description of the prior art will be briefly described below, and it is obvious that the drawings described below are only 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(a) and fig. 1(B) are schematic structural diagrams of an shaping apparatus of a laser cladding light source of multiple groups of parallel beams according to embodiment 1 of the present invention.
Fig. 2 is a cross-sectional view of a shaping apparatus of a laser cladding light source with multiple groups of parallel beams in Zoom1 provided in embodiment 1 of the present invention
Fig. 3 is a cross-sectional view of a shaping apparatus of a laser cladding light source with multiple groups of parallel beams in Zoom2 provided in embodiment 1 of the present invention
Fig. 4 is an illumination light source energy distribution diagram of an shaping device of a laser cladding light source of multiple groups of parallel beams provided in embodiment 1 of the present invention
Fig. 5 is a light spot energy distribution diagram of the shaping device of the laser cladding light source with multiple groups of parallel beams in Zoom1 provided in embodiment 1 of the present invention
Fig. 6 is a light spot energy distribution diagram of the shaping apparatus of the laser cladding light source with multiple groups of parallel beams in Zoom2 according to the embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are 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 one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.
Example 1
Referring to fig. 1, a schematic structural diagram (including two ZOOM positions of ZOOM) of an reshaping apparatus for a multi-group parallel beam laser cladding light source according to embodiment 1 of the present invention includes: the optical objective lens sequentially comprises the following components from an object plane end to an imaging plane along the optical axis direction of the lens of the optical objective lens: the zoom lens comprises a first lens group 110 with positive focal power, a diaphragm (not shown) and a second lens group 130 with positive focal power, wherein the first lens group at least comprises a plano-convex lens (L1), the second lens group sequentially comprises a first concave-convex lens (L2) and a second double-convex lens (L3) along the optical axis direction, and zooming is realized by adjusting the positions of the first concave-convex lens (L2) and the second double-convex lens (L3).
In some of these embodiments, fig. 1(a) the relative distance between the first meniscus lens (L2) and the second biconvex lens (L3) remains unchanged when the positions of the first meniscus lens (L2) and the second biconvex lens (L3) are adjusted.
It is understood that the above-described embodiment of the present application, as shown in fig. 1(B), realizes a focusing function by adjusting the first meniscus lens L2 and the second biconvex lens L3 as a whole, and is easy to adjust.
In some embodiments, the lens is made of glass.
It can be understood that this embodiment adopts glass's lens, has improved numerical aperture through optical design, therefore the utility model provides an objective allows the parallel beam who has certain divergence angle, has satisfied the demand of high power, and glass's lens also and avoid the high temperature to give the burnt phenomenon of running that the material produced.
In some of the embodiments, the output spot size of the shaping device is between 8mm and 40mm, the distortion of the spot is controlled to be less than 2.5% in the full field of view during the process of adjusting the positions of the first meniscus lens (L2) and the second biconvex lens (L3), and the energy distribution of the spot presents a flat-top distribution.
As shown in fig. 2, for the shaping device of the laser cladding light source of the multiple groups of parallel beams provided in embodiment 1 of the present invention, in a distortion ruled line graph of the first zooming, for the laser light source with a divergence angle as shown in fig. 4, the energy distribution of the output light spot presents a better flat distribution through the shaping device at the first zooming position, as shown in fig. 5.
As shown in fig. 3, a distorted ruled line diagram of the shaping device of the laser cladding light source with multiple groups of parallel beams in the second zooming is provided in embodiment 1, and the spot energy distribution at the position of the second zooming is shown in fig. 6.
The utility model provides an integer device of laser cladding light source of multiunit parallel beam that above-mentioned embodiment 1 provided, through the first meniscus lens L2 and the position of the two convex lens L3 of second lens group of adjusting, adjust first meniscus lens L2 and the two convex lens L3 of second as a whole, be convenient for realize the focusing function, the facula of output can correspondingly be adjusted, satisfy the thinking that the laser cladding product can obtain the facula demand of various energy distributions to the requirement of facula completely, when having satisfied the demand of laser cladding product, be convenient for operate.
Example 2
The application also provides a shaping device of laser cladding light source of multiunit parallel beam, including optical objective, follow the optical axis direction of optical objective's camera lens includes from the object plane end to the imaging plane: a second lens group having positive optical power, the second lens group including a first meniscus lens (L2) and a second biconvex lens (L3) in order in an optical axis direction, zooming being achieved by adjusting positions of the first meniscus lens (L2) and the second biconvex lens (L3).
In some of these embodiments, the relative distance between the first meniscus (L2) and the second biconvex lens (L3) remains unchanged when the positions of the first meniscus (L2) and the second biconvex lens (L3) are adjusted.
It is understood that the above-described embodiments of the present application implement a focusing function by adjusting the first meniscus lens L2 and the second biconvex lens L3 as a whole, and are simple to set and adjust.
In some of these embodiments, the energy of the output spot of the shaping device is M-shaped during the adjustment of the positions of the first meniscus lens (L2) and the second biconvex lens (L3).
In some embodiments, the lens is made of glass.
It can be understood that this embodiment adopts glass's lens, has improved numerical aperture through optical design, therefore the utility model provides an objective allows the parallel beam who has certain divergence angle, has satisfied the demand of high power, and glass's lens also and avoid the high temperature to give the burnt phenomenon of running that the material produced.
The utility model provides an integer device of laser cladding light source of multiunit parallel beam that embodiment 2 provided, through the first meniscus lens L2 and the position of the two convex lens L3 of second lens group of adjusting, adjust first meniscus lens L2 and the two convex lens L3 of second as a whole, be convenient for realize the focusing function, the facula of output can correspondingly be adjusted, satisfy the thinking that the laser cladding product can obtain the facula demand of various energy distributions to the requirement of facula completely, when having satisfied the demand of laser cladding product, be convenient for operate.
The foregoing is only a preferred embodiment of the present invention, and the technical principles of the present invention have been specifically described, and the description is only for the purpose of explaining the principles of the present invention, and should not be construed as limiting the scope of the present invention in any way. Any modifications, equivalents and improvements made within the spirit and principles of the invention and other embodiments of the invention without the creative effort of those skilled in the art are intended to be included within the protection scope of the invention.
Claims (8)
1. The utility model provides a shaping device of laser cladding light source of multiunit parallel beam which characterized in that, includes optical objective, still includes in proper order from the object plane end to the image plane along the optical axis direction of optical objective's camera lens: the zoom lens comprises a first lens group with positive focal power, a diaphragm and a second lens group with positive focal power, wherein the first lens group at least comprises a plano-convex lens (L1), the second lens group sequentially comprises a first concave-convex lens (L2) and a second double-convex lens (L3) along the optical axis direction, and zooming is realized by adjusting the positions of the first concave-convex lens (L2) and the second double-convex lens (L3).
2. The shaping apparatus of multiple sets of parallel beam laser cladding light sources of claim 1, characterized in that the relative distance between the first meniscus lens (L2) and the second biconvex lens (L3) is kept constant while adjusting the positions of the first meniscus lens (L2) and the second biconvex lens (L3).
3. The apparatus of claim 1, wherein the lens is a glass lens.
4. The shaping apparatus of the multi-group parallel beam laser cladding light source of claim 1, wherein the output spot size of the shaping apparatus is between 8mm and 40mm, the distortion of the spot during the adjustment of the positions of the first meniscus lens (L2) and the second biconvex lens (L3) is controlled to be less than 2.5% in the full field of view, and the energy distribution of the spot exhibits a flat top profile.
5. The shaping device for the laser cladding light source of the multiple groups of parallel beams is characterized by comprising an optical objective lens, wherein the shaping device comprises the following components from an object plane end to an imaging plane along the optical axis direction of a lens of the optical objective lens: a second lens group having positive optical power, the second lens group including a first meniscus lens (L2) and a second biconvex lens (L3) in order in an optical axis direction, zooming being achieved by adjusting positions of the first meniscus lens (L2) and the second biconvex lens (L3).
6. The shaping apparatus of multiple sets of parallel beam laser cladding light sources of claim 5, characterized in that the relative distance between the first meniscus lens (L2) and the second biconvex lens (L3) is kept constant while adjusting the positions of the first meniscus lens (L2) and the second biconvex lens (L3).
7. The shaping apparatus for multiple sets of parallel beam laser cladding light sources of claim 5, wherein the energy of the output spot of the shaping apparatus is M-shaped in the process of adjusting the positions of the first meniscus lens (L2) and the second biconvex lens (L3).
8. The apparatus of claim 5, wherein the lens is a glass lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121366314.5U CN215219329U (en) | 2021-06-18 | 2021-06-18 | Shaping device of laser cladding light source with multiple groups of parallel beams |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121366314.5U CN215219329U (en) | 2021-06-18 | 2021-06-18 | Shaping device of laser cladding light source with multiple groups of parallel beams |
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| Publication Number | Publication Date |
|---|---|
| CN215219329U true CN215219329U (en) | 2021-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121366314.5U Active CN215219329U (en) | 2021-06-18 | 2021-06-18 | Shaping device of laser cladding light source with multiple groups of parallel beams |
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| CN (1) | CN215219329U (en) |
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- 2021-06-18 CN CN202121366314.5U patent/CN215219329U/en active Active
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