CN218311529U - Power attenuation device for laser drilling front end - Google Patents
Power attenuation device for laser drilling front end Download PDFInfo
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- CN218311529U CN218311529U CN202222545966.6U CN202222545966U CN218311529U CN 218311529 U CN218311529 U CN 218311529U CN 202222545966 U CN202222545966 U CN 202222545966U CN 218311529 U CN218311529 U CN 218311529U
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Abstract
The utility model relates to a power attenuation device for laser beam drilling front end, the device includes: a housing: the laser light source is provided with a laser incident port and a laser emergent port; a power attenuation component: when laser is emitted into the shell from the laser incident port, the laser is transmitted and reflected by the semi-transparent semi-reflective optical lens to obtain transmitted light and reflected light, and the transmitted light is emitted out of the shell through the laser emergent port; and the graphite black box is used for absorbing the energy of the reflected light. Compared with the prior art, the semi-transparent semi-reflective optical lens arranged in the device of the utility model can attenuate the energy of the high-energy laser to obtain the low-energy laser, thereby realizing the large-range adjustment of the laser power of the laser drilling machine; the device of the utility model is simple in structure, it is also convenient to operate, can the upper part of the hand to the simple training of operation workman.
Description
Technical Field
The utility model belongs to the technical field of laser-beam drilling machine, a power attenuating device for laser beam drilling front end is related to.
Background
The laser power of the laser drilling machine sold on the market at present is small in adjustable range, generally, the laser power can only float in an interval with the rated power of 30%, at present, no good method for realizing large-range adjustment (from high power to low power) exists, and stepless adjustment like motor control cannot be achieved. If a certain enterprise needs low-power punching and high-power punching machines, at present, two punching devices are purchased, or a huge cost is spent on purchasing high-end laser punching machines. The former can exert value because two devices are required to be started, and two devices with different powers are not required to be started simultaneously in practice, so that the two devices waste fields, the devices are required to be maintained at ordinary times, and the hidden cost is too high. The latter often requires a high budget, and the thin and profitable laser drilling industry faces a long cost cycle and is unacceptable for enterprises.
Another solution in the market is to adjust the power by adjusting multiple parameters of the laser. However, since lasers are complex systems, the parameters are numerous and require a certain amount of expertise. Although adjustments can be made, in practice it is impractical for line workers to learn complex laser settings. In addition, most laser adjusting software is packaged and cannot be automatically adjusted by writing software.
In response to the demand, equipment manufacturers are actively seeking solutions. Therefore, a simple and low-threshold technical method is needed to solve the problem that the laser power of the laser-beam drilling machine cannot be adjusted in a large range.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a power attenuating device for laser beam drilling front end to overcome the defect that laser beam drilling machine's laser power can not be adjusted in great within range among the prior art.
The purpose of the utility model can be realized by the following technical proposal:
a power attenuation apparatus for a laser drilling front end, the apparatus comprising:
a housing: the laser light source is provided with a laser incident port and a laser emergent port;
a power attenuation component: when laser is emitted into the shell from the laser incident port, the laser is transmitted and reflected by the semi-transparent semi-reflective optical lens to obtain transmitted light and reflected light, and the transmitted light is emitted out of the shell through the laser emergent port;
and the graphite black box is used for absorbing the reflected light energy.
Furthermore, the graphite black box is provided with a heat exchange pipeline for absorbing heat.
Further, the heat exchange tubes are arranged around the graphite black box on the outer surface of the graphite black box.
Furthermore, a graphite cylinder for absorbing reflected light is arranged in the graphite black box, and the heat exchange pipeline is arranged around the central axis of the graphite cylinder.
Furthermore, the graphite black box is provided with a cooling water inlet and a cooling water outlet, and two ends of the heat exchange pipeline are respectively connected with the cooling water inlet and the cooling water outlet. The heat exchange pipeline is used for guiding cooling water to fully flow through the whole graphite black box. In the use, the cooling water can be along heat transfer pipeline round bypass graphite black box, fully contacts with graphite black box at this in-process, takes away its heat. Therefore, the arrangement of the heat exchange tubes cannot be too sparse nor too tight.
Furthermore, the graphite black box is provided with a light-gathering diaphragm, and the reflected light is transmitted into the graphite black box after being gathered by the light-gathering diaphragm.
Furthermore, the semi-transparent semi-reflective optical lens is glued with the shell.
Furthermore, the semi-transparent semi-reflective optical lens is connected with the shell in an adhesive mode through a silica gel sheet. The silica gel piece plays fixed action on the one hand, plays absorbing effect on the one hand. If hard contact is used, the transflective optical lens may be damaged in shock.
Furthermore, the inner surface of the graphite black box is a non-smooth rough surface, so that the entering light generates diffuse reflection in the graphite black box.
Furthermore, the central axes of the laser incident port and the laser emergent port are located on the same straight line.
The T: R spectral ratio of the semi-transparent semi-reflective optical lens is generally 50, and in addition, according to the actual design of a light path, the semi-transparent semi-reflective optical lenses with different spectral wave bands are adopted, so that the light with different wave bands can be filtered out for attenuation. The semi-transparent semi-reflective optical lens does not directly influence the energy absorption performance.
Adjusting the laser power is actually adjusting the amount of energy emitted by the laser. The utility model discloses borrow the thinking of optical adjustment for reference, make the laser attenuation of high energy, to power attenuation to the within range that just can adjust by laser-beam drilling machine self, just so can change the laser of high energy into the laser of low energy to realize laser adjustment on a large scale. This method needs to take into account how the energy emitted by the laser is absorbed. The utility model provides a technical scheme solves the problem of how decay laser, then absorption unnecessary energy emphatically.
The utility model discloses power attenuation device aims at the laser exit port of laser-beam drilling machine with the laser entrance port of casing when using, and the laser is shone into the casing, and semi-transparent semi-reflective optical lens divides the high energy laser equidensity who jets into two bundles of light, transmission light and reverberation, and the transmission light that high energy laser attenuation half energy obtained jets out from the laser exit port of casing, obtains the low energy laser of decay energy; the reflected light is reflected to the condensation diaphragm, the condensation diaphragm filters the laser with extremely small energy at the peripheral edge of the reflected light beam, then the light beam with the energy exceeding 9 is reserved and is emitted to the graphite black box, the laser irradiates the graphite cylinder, the graphite cylinder absorbs the energy of the reflected light and converts the energy into heat, and the cooling water in the heat exchange pipeline takes away the heat.
The utility model discloses the semi-transparent semi-reflective optical lens that the device set up makes the energy attenuation of high energy laser to realize adjusting on a large scale of laser-beam drilling machine laser power.
The device of the utility model is simple in structure, it is also convenient to operate, can the upper part of the hand to the simple training of operation workman.
Compared with the prior art, the utility model has the advantages of it is following:
(1) The semi-transparent semi-reflective optical lens arranged in the device of the utility model can attenuate the energy of the high-energy laser to obtain the low-energy laser, thereby realizing the large-range adjustment of the laser power of the laser drilling machine;
(2) The device of the utility model is simple in structure, it is also convenient to operate, can the upper part of the hand to the simple training of operation workman.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is an overall perspective view of the present invention.
The notation in the figure is:
1-laser incident port, 2-semi-transparent semi-reflective optical lens, 3-laser emergent port, 4-condensation diaphragm, 5-graphite black box, 6-cooling water inlet, 7-cooling water outlet, 8-heat exchange pipeline and 9-shell.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
In the following embodiments or examples, unless otherwise specified, functional components or structures are all conventional components or structures adopted in the art to achieve the corresponding functions.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
In order to overcome the defect that the laser power of the laser drilling machine in the prior art cannot be adjusted in a wide range, the present embodiment provides a power attenuation device for a laser drilling front end, which includes, referring to fig. 1-2:
a housing 9: the laser device is provided with a laser incident port 1 and a laser emergent port 3;
a power attenuation component: when laser is emitted into the shell 9 from the laser incident port 1, the laser is transmitted and reflected by the semi-transparent semi-reflective optical lens 2 to obtain transmitted light and reflected light, and the transmitted light is emitted out of the shell 9 through the laser emitting port 3;
a graphite black box 5 for absorbing the reflected light energy.
In some embodiments, referring to fig. 1-2, the graphite black box 5 is provided with heat exchange tubes 8 for absorbing heat.
In a more specific embodiment, the heat exchange tubes 8 are disposed around the graphite black box 5 at an outer surface of the graphite black box 5.
In a more specific embodiment, a graphite cylinder for absorbing reflected light is arranged in the graphite black box 5, and the heat exchange pipe 8 is arranged around the central axis of the graphite cylinder.
In a more specific embodiment, the graphite black box 5 is provided with a cooling water inlet 6 and a cooling water outlet 7, and two ends of the heat exchange pipe 8 are respectively connected with the cooling water inlet 6 and the cooling water outlet 7. The heat exchange tubes 8 are used to conduct cooling water to flow substantially throughout the graphite black box 5. In the use process, the cooling water can pass around the graphite black box 5 along the heat exchange pipe 8 in a circle, and fully contacts with the graphite black box 5 in the process to take away heat of the graphite black box. Therefore, the arrangement of the heat exchange tubes 8 cannot be too sparse nor too tight.
In some specific embodiments, referring to fig. 1-2, the graphite black box 5 is provided with a light-gathering diaphragm 4, and the reflected light is incident on the graphite black box 5 after being gathered by the light-gathering diaphragm 4.
In some specific embodiments, the transflective optical lens 2 is glued to the housing 9.
In a more specific embodiment, the transflective optical lens 2 is bonded to the housing 9 through a silicone sheet. The silica gel piece plays fixed action on the one hand, plays absorbing effect on the one hand. If a hard contact is used, the half-mirror 2 may be damaged in shock.
In some embodiments, the inner surface of the graphite black box 5 is a non-smooth rough surface, so that the incident light is diffusely reflected inside the graphite black box 5.
In some embodiments, referring to fig. 1-2, the central axes of the laser light inlet port 1 and the laser light outlet port 3 are located on the same straight line.
Example 1:
the embodiment provides a power attenuation device for a laser drilling front end, and as shown in fig. 1-2, the device comprises a laser incidence port 1, a semi-transparent and semi-reflective optical lens 2, a laser emergence port 3, a light-gathering diaphragm 4, a graphite black box 5, a cooling water inlet 6, a cooling water outlet 7, a heat exchange pipeline 8 and a shell 9.
As shown in fig. 1-2, a laser entrance port 1 and a laser exit port 3 are provided on the housing 9, and the central axes of the laser entrance port 1 and the laser exit port 3 are located on the same straight line. When high-energy laser from a laser drilling machine is emitted into the shell 9 from the laser incident port 1, the high-energy laser is transmitted and reflected by the semi-transparent semi-reflective optical lens 2 to obtain transmitted light and reflected light, and the transmitted light is emitted out of the shell 9 through the laser emitting port 3 to obtain laser with attenuated energy. The graphite black box 5 is provided with a light-gathering diaphragm 4, and reflected light is emitted into the graphite black box 5 after being gathered by the light-gathering diaphragm 4.
As shown in fig. 1-2, the graphite black box 5 is provided with a heat exchange pipe 8 for absorbing heat, the heat exchange pipe 8 is arranged on the outer surface of the graphite black box 5 around the graphite black box 5, a graphite cylinder for absorbing reflected light is arranged in the graphite black box 5, and the heat exchange pipe 8 is arranged around the central axis of the graphite cylinder. The graphite black box 5 is provided with a cooling water inlet 6 and a cooling water outlet 7, and two ends of the heat exchange pipeline 8 are respectively connected with the cooling water inlet 6 and the cooling water outlet 7. The heat exchange tubes 8 are used to conduct cooling water to flow substantially throughout the graphite black box 5. In the use process, the cooling water can pass around the graphite black box 5 along the heat exchange pipe 8 in a circle, and fully contacts with the graphite black box 5 in the process to take away heat of the graphite black box. Therefore, the arrangement of the heat exchange tubes 8 cannot be too sparse nor too tight.
The half-transmitting and half-reflecting optical lens 2 is glued with the shell 9 through a silica gel sheet. The silica gel piece plays fixed action on the one hand, plays absorbing effect on the one hand. If a hard contact is used, the transflective optical lens 2 may be damaged in shock.
The inner surface of the graphite black box 5 is a non-smooth rough surface, so that the entering light generates diffuse reflection in the graphite black box 5.
When the power attenuation device is used, the laser entrance port 1 of the shell 9 is aligned with the light exit port of the laser drilling machine (laser), the laser enters the shell 9, the semi-transparent and semi-reflective optical lens 2 divides the energy of the incident high-energy laser into two beams of light, the transmitted light and the reflected light, the transmitted light obtained by attenuating half of the energy of the high-energy laser continuously advances along the incident light path and is emitted from the laser exit port 3 of the shell 9, and the laser with attenuated energy is obtained; the reflected light is reflected to the light-gathering diaphragm 4, the light-gathering diaphragm 4 filters the laser with extremely small energy at the peripheral edge of the reflected light beam, then the light beam with energy which is more than 9 is reserved to be shot into the graphite black box 5 and irradiated on the graphite cylinder, and the graphite cylinder absorbs the energy of the reflected light and converts the energy into heat. The cooling water enters from a cooling water inlet 6 of the graphite black box 5, fully contacts with the graphite black box 5, absorbs heat, and then flows out from a cooling water outlet 7 to take away the heat. The cooling water flowing out from the cooling water outlet 7 can be repeatedly recycled after being cooled.
By adopting the power attenuation device of the embodiment, the high-energy laser is attenuated into low energy, so that the large-range adjustment of the laser power is realized. The original laser power is 100kw, the laser can only be adjusted to 70kw (30% adjustment range) at the lowest, and through the attenuation of the device of the embodiment, the power can be adjusted to 35-50 kw on the premise of not changing the light source, so that the spanning from high power to low power is realized.
The transflective optical lens 2 of the present embodiment can be replaced with different types of optical lenses according to the requirements of customers. The full-range adjustment can be basically realized by matching with lenses of different models.
The embodiments described above are intended to facilitate a person skilled in the art in understanding and using the invention. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.
Claims (10)
1. A power attenuation apparatus for a laser drilling front end, comprising:
housing (9): the laser light source is provided with a laser incident port (1) and a laser emergent port (3);
a power attenuation component: the laser imaging device comprises a semi-transparent semi-reflective optical lens (2) arranged in a shell (9), when laser is emitted into the shell (9) from a laser incident port (1), the laser is transmitted and reflected by the semi-transparent semi-reflective optical lens (2) to obtain transmitted light and reflected light, and the transmitted light is emitted out of the shell (9) through a laser emergent port (3);
a graphite black box (5) for absorbing the reflected light energy.
2. A power attenuation device for laser drilling front ends according to claim 1, characterized in that the graphite black box (5) is provided with heat exchange tubes (8) for absorbing heat.
3. A power attenuation apparatus for a laser drilling front end according to claim 2, characterized in that the heat exchange conduit (8) is arranged around the graphite black box (5) at the outer surface of the graphite black box (5).
4. A power attenuation apparatus for a laser drilling front end according to claim 3, characterized in that a graphite cylinder for absorbing reflected light is provided inside the graphite black box (5), and the heat exchange tubes (8) are arranged around the central axis of the graphite cylinder.
5. The power attenuation device for the laser drilling front end according to claim 2, characterized in that the graphite black box (5) is provided with a cooling water inlet (6) and a cooling water outlet (7), and two ends of the heat exchange pipe (8) are respectively connected with the cooling water inlet (6) and the cooling water outlet (7).
6. The power attenuation device for the laser drilling front end according to claim 1, characterized in that the graphite black box (5) is provided with a light-gathering diaphragm (4), and the reflected light is incident into the graphite black box (5) after being gathered by the light-gathering diaphragm (4).
7. A power attenuation apparatus for laser drilling front ends according to claim 1, characterized in that the semi-transparent semi-reflective optical lens (2) is glued to the housing (9).
8. The power attenuation device for laser drilling front end according to claim 7, characterized in that the transflective optical lens (2) is glued to the housing (9) by a silicone sheet.
9. A power attenuation apparatus for a laser drilling tip as claimed in claim 1, characterized in that the inner surface of the graphite black box (5) is a non-smooth rough surface.
10. A power attenuation apparatus for laser drilling front end according to claim 1, characterized in that the central axes of the laser entrance port (1) and the laser exit port (3) are located on the same straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222545966.6U CN218311529U (en) | 2022-09-26 | 2022-09-26 | Power attenuation device for laser drilling front end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222545966.6U CN218311529U (en) | 2022-09-26 | 2022-09-26 | Power attenuation device for laser drilling front end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218311529U true CN218311529U (en) | 2023-01-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222545966.6U Active CN218311529U (en) | 2022-09-26 | 2022-09-26 | Power attenuation device for laser drilling front end |
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| Country | Link |
|---|---|
| CN (1) | CN218311529U (en) |
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2022
- 2022-09-26 CN CN202222545966.6U patent/CN218311529U/en active Active
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