Laser processing system and laser processing equipment
The sealed light path in the laser processing system addresses the issue of dust adherence to the expansion lens, ensuring lens protection and maintaining beam quality while simplifying the structure and reducing maintenance costs.
Patent Information
- Application Number
- CN202421951422.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-08-12
AI Technical Summary
In traditional laser processing equipment, dust particles are prone to adhere to the surface of the beam expansion lens, resulting in damage to the coating layer, affecting the beam quality and processing effect, and the existing sealing structure is complex.
A laser processing system is designed, including a sealing body and a dimming assembly, the laser is sealedly connected to the beam expanding mirror, and the beam adjustment is carried out in the sealing cavity, and the beam axis is adjusted through the reflection assembly to ensure the sealing property and beam quality of the beam entering the beam expanding mirror.
Effectively prevent dust particles from adhering, protect beam expansion lenses, ensure beam quality and processing effect, simplify structure and reduce costs.
Smart Images
Figure CN223098290U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a field, in particular to a laser processing system and a laser processing device. Background Art
[0002] The beam expander of a traditional laser processing device is generally placed in an external optical path and separated from the laser. When there is a lot of dust generated by the processed sample or there are problems with the sealing in the external optical path, the soot generated by the processed sample is likely to adhere to the surface of the beam expander lens. High-power laser hitting the soot particles on the lens surface is extremely likely to damage the coating on the lens surface. Especially at the entrance of the beam expander, since the beam diameter is not magnified and the energy density is relatively high, the coating layer on the surface is more easily damaged. This will not only reduce the laser energy passing through the beam expander, but also greatly affect the beam quality effect, and further affect the processing effect of the sample. For this reason, additional sealing components need to be added, resulting in a complex structure. Summary of the Utility Model
[0003] The purpose of the utility model is to provide a laser processing system and a laser processing device to solve the problems in the prior art and effectively prevent soot particles from adhering to the surface of the beam expander lens.
[0004] In a first aspect, the utility model provides a laser processing system, including a laser, a dimming device and a beam expander. The dimming device includes a sealing main body and a dimming component. Wherein, a sealing cavity is formed in the sealing main body, the dimming component is connected to the sealing main body and is located in the sealing cavity. One end of the sealing main body is provided with a beam inlet, and the other end of the sealing main body is provided with a beam outlet. Both the beam inlet and the beam outlet are communicated with the sealing cavity. The laser is hermetically connected to the beam inlet, and the beam expander is hermetically connected to the beam outlet;
[0005] The beam emitted by the laser can enter the sealing cavity from the beam inlet, pass through the dimming component, then enter the beam expander from the beam outlet, and be emitted from the beam expander.
[0006] For a laser processing system as described above, preferably, the beam outlet is a threaded hole, and the beam expander is detachably installed on the beam outlet through the threaded hole.
[0007] A laser processing system as described above, wherein preferably, the light regulating component includes a first light regulating member and a second light regulating member both connected to the sealing body. The first light regulating member and the second light regulating member are both located between the light beam inlet and the light beam outlet, and the first light regulating member is located on the side of the second light regulating member closer to the light beam inlet. Both the first light regulating member and the second light regulating member have light beam through holes for the light beam to pass through, and the axis of the light beam through hole coincides with the axis of the light beam outlet.
[0008] A laser processing system as described above, wherein preferably, the inner diameter of the light beam through hole is the same as the inner diameter of the light beam outlet.
[0009] A laser processing system as described above, wherein preferably, the light beam through hole is covered with a first covering member, and a circular through hole penetrates through the center of the first covering member.
[0010] A laser processing system as described above, wherein preferably, the light beam channel is covered with a second covering member, and a first through groove and a second through groove that are connected and communicate with each other penetrate through the center of the second covering member. The extending directions of the first through groove and the second through groove are perpendicular to each other.
[0011] A laser processing system as described above, wherein preferably, the light regulating component further includes a light regulating bracket, and the light regulating bracket is connected to the sealing body and is located in the sealing cavity;
[0012] Both the first light regulating member and the second light regulating member are mounted on the light regulating bracket;
[0013] Alternatively, the first light regulating member is mounted on the light regulating bracket, and the second light regulating member is mounted on the sealing body.
[0014] A laser processing system as described above, wherein preferably, the light beam inlet and the light beam outlet are coaxially arranged.
[0015] A laser processing system as described above, wherein preferably, the light beam inlet and the light beam outlet are arranged in a misaligned manner, and the light regulating device further includes a reflection component. The reflection component includes a first reflection member, and the first reflection member is connected to the sealing body and is located in the sealing cavity. The first reflection member is used to adjust the light beam incident from the light beam inlet into a light beam parallel to the axis of the light beam outlet and reflect it to the light regulating component.
[0016] A laser processing system as described above, wherein, preferably, the beam inlet and the beam outlet are arranged offset from each other, the light adjusting device further includes a reflection component, the reflection component includes a first reflector and a second reflector, both the first reflector and the second reflector are connected to the sealing body and are located in the sealing cavity, the first reflector is arranged corresponding to the beam inlet, and the second reflector is arranged corresponding to the beam outlet;
[0017] A laser processing system as described above, wherein, preferably, the first reflector is used to reflect the beam incident from the beam inlet to the second reflector, and the second reflector is used to adjust the beam reflected from the first reflector into a beam parallel to the axis of the beam outlet and reflect it to the light adjusting component.
[0018] A laser processing system as described above, wherein, preferably, the reflection component further includes a first reflection bracket and a second reflection bracket, both the first reflection bracket and the second reflection bracket are connected to the sealing body and are located in the sealing cavity, the first reflector is arranged on the first reflection bracket, and the first reflection bracket is used to adjust the position of the first reflector to adjust the reflection direction of the beam, the second reflector is arranged on the second reflection bracket, and the second reflection bracket is used to adjust the position of the second reflector to adjust the reflection direction of the beam.
[0019] A laser processing system as described above, wherein, preferably, the first reflector is fixed to the first reflection bracket through a first thread pair, and the second reflector is fixed to the second reflection bracket through a second thread pair.
[0020] In a second aspect, the present invention provides a laser processing device for processing a PCB board, including the laser processing system as described above and a processing platform, the processing platform is used to carry the PCB board, and the beam emitted by the laser can irradiate the PCB board placed on the processing platform after passing through the light adjusting device and the beam expander to cut or drill the PCB board.
[0021] Compared with the prior art, the light adjusting device of the laser processing system of the present invention includes a sealing body, the laser is hermetically connected to the beam inlet at one end of the sealing body, and the beam expander is hermetically connected to the beam outlet at the other end of the sealing body, thereby greatly reducing the possibility that dust particles adhere to the surface of the beam expander lens during the sample processing, which is beneficial to protecting the beam expander lens from damage, and further ensuring the beam quality effect and the sample processing effect. At the same time, by setting the sealing body, the sealing of the optical path between the laser, the light adjusting component and the beam expander can be realized, the structure is simple, there is no need to set multiple sealing parts for sealing respectively, and the cost is reduced. Description of the Drawings
[0022] Figure 1 is a schematic assembly state diagram when the laser processing system provided by the embodiment of the present utility model is assembled between a laser and a beam expander;
[0023] Figure 2 is a schematic optical path diagram of the laser processing system provided by the embodiment of the present utility model.
[0024] Description of the Reference Numerals:
[0025] 100 - light - adjusting device, 110 - sealing main body, 111 - sealing cavity, 112 - threaded hole, 120 - light - adjusting assembly, 121 - first light - adjusting member, 122 - second light - adjusting member, 130 - reflection assembly, 131 - first reflector, 132 - second reflector;
[0026] 200 - laser;
[0027] 300 - beam expander. Detailed Embodiment
[0028] The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model, and should not be construed as limiting the present utility model.
[0029] In a first aspect, referring to Figure 1 and Figure 2 as shown, the present utility model provides a laser processing system, including a light - adjusting device 100, a laser 200, and a beam expander 300. The light - adjusting device 100 includes a sealing main body 110 and a light - adjusting assembly 120. A sealing cavity 111 is formed in the sealing main body 110, and the light - adjusting assembly 120 is connected to the sealing main body 110 and is located in the sealing cavity 111. One end of the sealing main body 110 is provided with a beam inlet (not shown), and the other end of the sealing main body 110 is provided with a beam outlet (not shown). Both the beam inlet and the beam outlet are communicated with the sealing cavity 111. The beam emitted by the laser 200 can enter the sealing cavity 111 from the beam inlet, and after passing through the light - adjusting assembly 120, it enters the beam expander 300 from the beam outlet and is emitted by the beam expander 300.
[0030] In the embodiments provided in the present application, after the beam emitted by the laser 200 enters the sealing cavity 111 from the beam inlet, it is collimated and adjusted under the action of the light - adjusting assembly 120. The collimated beam enters the beam expander 300 from the beam outlet. Since the laser 200 and the beam expander 300 are respectively hermetically connected to the beam inlet and the beam outlet, the process of beam adjustment is carried out in the closed sealing cavity 111, and at the same time, it is avoided that dust and other particles generated during the sample processing adhere to the surface of the lens of the beam expander 300, thereby greatly reducing the damage to the lens of the beam expander 300 caused by the high - energy laser beam.
[0031] Further, the beam outlet is a threaded hole 112, and the beam expander 300 is detachably installed at the beam outlet through the threaded hole 112. It can be understood that the beam expander 300 is detachably installed on the sealing body 110 through the threaded hole 112. When the beam expander 300 is damaged and needs to be replaced, only the beam expander 300 needs to be disassembled and replaced with a new one. After replacing the beam expander 300, there is no need to re-adjust the light, omitting the light adjustment step, which can save maintenance costs, and further enabling the laser processing system of the present application to meet the production requirements of industrial large quantities and high efficiency.
[0032] Further, the light adjustment device 100 can be externally hung on the laser 200 through components such as hooks or brackets, or can be detachably connected to the laser in other ways, as long as the laser 200 is hermetically connected to the beam inlet and the light beam emitted by the laser 200 can completely enter the sealing cavity 111 through the beam inlet. The light adjustment device 100 of the laser processing system of the present application is arranged between the laser 200 and the beam expander 300, and is hermetically connected to the laser 200 and the beam expander 300 respectively. The overall structure is compact, which is convenient for installation, debugging and maintenance.
[0033] Referring to Figure 2 As shown, the light adjustment assembly 120 includes a first light adjustment member 121 and a second light adjustment member 122. Both the first light adjustment member 121 and the second light adjustment member 122 are arranged inside the sealing body 110 and are both located between the beam inlet and the beam outlet. The first light adjustment member 121 is located on the side of the second light adjustment member 122 closer to the beam inlet, that is, the first light adjustment member 121 is closer to the beam inlet and the second light adjustment member 122 is closer to the beam outlet. The light beam emitted by the laser 200 is adjusted by the first light adjustment member 121 and the second light adjustment member 122 respectively, and then enters the beam expander 300 through the beam outlet. In order to enable the light beam to accurately enter the beam expander 300 through the beam outlet, light beam through holes for the light beam to pass through are provided on both the first light adjustment member 121 and the second light adjustment member 122, and the axis of the light beam through hole coincides with the axis of the beam outlet, so that the light beam through hole of the first light adjustment member 121, the light beam through hole of the second light adjustment member 122 and the beam outlet are on the same horizontal line, thereby enabling the light beam to accurately enter the beam expander 300 under the action of the light adjustment assembly 120.
[0034] Further, in order to ensure the quality effect of the light beam, the inner diameter of the light beam through hole is the same as the inner diameter of the beam outlet. Having the same inner diameter when the light beam through hole and the beam outlet are at the same height enables the light beam to completely enter the beam expander 300 through the beam channel after passing through the beam channel, maximizing the quality of the light beam propagation and being beneficial to improving the working efficiency of the laser processing system.
[0035] In a feasible implementation, the light beam through-hole is covered with a first covering member, and a circular through-hole penetrates through the center of the first covering member. Both the first light-dimming member 121 and the second light-dimming member 122 are diaphragm toolings. The inner diameter of the circular through-hole is the same as the inner diameter of the light beam outlet. The light beam emitted by the laser 200 can enter the beam expander 300 completely only after being adjusted by the light-dimming assembly 120.
[0036] In another feasible implementation, the light beam through-hole is covered with a second covering member, and a first through-slot and a second through-slot that are connected and communicate with each other penetrate through the center of the second covering member. The extending directions of the first through-slot and the second through-slot are perpendicular to each other. Both the first light-dimming member 121 and the second light-dimming member 122 are cross toolings. The size of the overlapping part where the first through-slot and the second through-slot intersect and overlap needs to be the same as the inner diameter of the light beam outlet to ensure that the light beam adjusted by the light-dimming assembly 120 can enter the beam expander 300 completely.
[0037] In order to further improve the adjustment effect of the light-dimming assembly 120 on the light beam, the light-dimming assembly 120 further includes a light-dimming bracket, which is connected to the sealing main body and is located in the sealing cavity 111. On the one hand, the light-dimming bracket is used to fix the light-dimming assembly 120, and on the other hand, it can adjust the positions of the light beam through-holes of the first light-dimming member 121 and the second light-dimming member 122 so that the light beam through-hole of the first light-dimming member 121 and the light beam through-hole of the second light-dimming member 122 are coaxial with the light beam outlet.
[0038] In a feasible implementation, both the first light-dimming member 121 and the second light-dimming member 122 are installed on the light-dimming bracket. After the light beam enters the sealing cavity 111, the positions of the light beam through-holes of the first light-dimming member 121 and the second light-dimming member 122 are adjusted by adjusting the light-dimming bracket, so that the light beam can accurately enter the beam expander 300 from the light beam outlet.
[0039] In another feasible implementation, the first light-dimming member 121 is installed on the light-dimming bracket, the second light-dimming member 122 is fixed in the sealing main body, and the light beam through-hole of the second light-dimming member 122 is coaxial with the light beam outlet. When the light beam enters the sealing cavity 111 from the light beam inlet, the light-dimming bracket is adjusted so that the light beam through-hole of the first light-dimming member 121 is coaxial with the light beam through-hole of the second light-dimming member 122, and then the light beam can enter the beam expander 300 from the light beam outlet.
[0040] In the above embodiments, based on the coaxial setting of the light beam inlet and the light beam outlet, the axes of the light beam through-holes of the first light-dimming member 121 and the second light-dimming member 122 coincide with the axis of the light beam outlet. Furthermore, the light beam inlet, the light-dimming assembly 120, and the light beam outlet are all coaxial. After the light beam emitted by the laser 200 enters the sealing cavity from the light beam inlet, it can directly enter the beam expander 300 from the light beam outlet through the adjustment of the light-dimming assembly 120.
[0041] When the beam inlet and the beam outlet are arranged out of alignment, the beam entering the sealed cavity 111 from the beam inlet cannot directly enter the beam expander 300 from the beam outlet after being adjusted by the dimming component. Therefore, the dimming device is also provided with a reflection component 130. Through the action of the reflection component 130, the beam entering from the beam inlet is adjusted into a beam parallel to the axis of the beam outlet, and then reflected to the dimming component 130 and emitted from the beam outlet.
[0042] Referring to Figure 2 As shown, in a feasible embodiment, the beam inlet and the beam outlet are respectively located on two adjacent end faces of the sealed main body 110. The reflection component 130 includes a first reflector 131, and the first reflector 131 is connected to the sealed main body 110 and is located in the sealed cavity 111. Due to the misalignment of the beam inlet and the beam outlet, the beam entering the sealed main body 110 from the beam inlet cannot be directly emitted from the beam outlet after being adjusted by the dimming component 120. Therefore, by using the reflection action of the first reflector 131, the beam entering from the beam inlet is adjusted into a beam parallel to the axis of the beam outlet, and reflected to the dimming component 120. After being adjusted by the dimming component 120, the beam can enter the beam expander 300 from the beam outlet.
[0043] In another feasible embodiment, the beam inlet and the beam outlet are respectively located on two opposite end faces of the sealed main body 110 and are arranged out of alignment. The reflection component 130 includes a first reflector 131 and a second reflector 132. Both the first reflector 131 and the second reflector 132 are connected to the sealed main body 110 and are located in the sealed cavity 111. The first reflector 131 corresponds to the position of the beam inlet and is used to reflect the beam entering from the beam inlet to the second reflector 132. The second reflector 132 corresponds to the position of the beam outlet. The second reflector 132 is used to receive the beam reflected by the first reflector 131, adjust the beam into a beam parallel to the axis of the beam outlet, and reflect it to the dimming component 120, so that the reflected beam can enter the beam expander 300 from the beam outlet.
[0044] Preferably, both the first reflector 131 and the second reflector 132 are reflectors. The reflectors are based on high-quality quartz materials and are coated with high-reflection films on the surface, and the reflectivity can reach more than 99.5%. Using reflectors with high reflectivity to reflect the beam can improve the reflection effect on the laser beam, and thus ensure the beam quality entering the beam expander 300.
[0045] To improve the reflection effect of the reflection component 130, the reflection component 130 further includes a first reflection bracket and a second reflection bracket. Both the first reflection bracket and the second reflection bracket are connected to the sealing body 110 and are located within the sealing cavity 111. The first reflector 131 is disposed on the first reflection bracket. The first reflection bracket can adjust the position of the first reflector 131 to adjust the reflection direction of the light beam, so that the light beam incident from the light beam inlet can be reflected onto the second reflector 132. The second reflector 132 is disposed on the second reflection bracket. The second reflection bracket can adjust the position of the second reflector 132 so that the axis of the light beam reflected to the dimming component 120 is parallel to the axis of the light beam outlet.
[0046] Preferably, the first reflector 131 is fixed to the first reflection bracket through a first thread pair, and the second reflector 132 is fixed to the second reflection bracket through a second thread pair. The structures of the first thread pair and the second thread pair are the same. By tightening or loosening the thread pair, the position of the first reflector 131 on the first reflection bracket or the position of the second reflector 132 on the second reflection bracket can be adjusted, so that the first reflector 131 and the second reflector 132 can reflect the light beam at a suitable inclination angle.
[0047] In a second aspect, the present utility model provides a laser processing device for processing a PCB board, including the aforementioned laser processing system and a processing platform. The processing platform is used to carry the PCB board. After the light beam emitted by the laser 200 passes through the dimming device 100 and the beam expander 300, it can irradiate the PCB board placed on the processing platform to cut or drill the PCB board. In this application, the laser processing device can be a laser drilling machine or a laser forming machine, etc., which is not limited herein. Since the laser processing system has good sealing performance, the beam expander 300 can emit a light beam with good beam quality, and thus has a good processing effect on the PCB board on the processing platform.
[0048] The structure, features and effects of the present utility model have been described in detail based on the embodiments shown in the drawings. The above is only the preferred embodiment of the present utility model, but the present utility model is not limited to the scope shown in the drawings. Any changes made according to the concept of the present utility model, or equivalent embodiments modified into equivalent changes, still fall within the spirit covered by the specification and the drawings, and should be within the protection scope of the present utility model.
Claims
1. A laser processing system, characterized in that, It includes a laser, a dimming device and a beam expander. The dimming device includes a sealed body and a dimming component. Among them, a sealed cavity is formed in the sealed body. The dimming component is connected to the sealed body and is located in the sealed cavity. A beam inlet is provided at one end of the sealed body, and a beam outlet is provided at the other end of the sealed body. Both the beam inlet and the beam outlet are communicated with the sealed cavity. The laser is hermetically connected to the beam inlet, and the beam expander is hermetically connected to the beam outlet; The beam emitted by the laser can enter the sealed cavity from the beam inlet, pass through the dimming component, enter the beam expander from the beam outlet, and be emitted from the beam expander.
2. The laser processing system according to claim 1, characterized in that The beam outlet is a threaded hole, and the beam expander is detachably installed on the beam outlet through the threaded hole.
3. The laser processing system according to claim 1, wherein, The dimming component includes a first dimming member and a second dimming member both connected to the sealed body. The first dimming member and the second dimming member are both located between the beam inlet and the beam outlet, and the first dimming member is located on the side of the second dimming member closer to the beam inlet. Both the first dimming member and the second dimming member have a beam through hole for the beam to pass through, and the axis of the beam through hole coincides with the axis of the beam outlet.
4. The laser processing system according to claim 3, wherein The inner diameter of the beam through hole is the same as the inner diameter of the beam outlet.
5. The laser processing system according to claim 3, wherein The beam through hole is covered with a first covering member, and a circular through hole penetrates through the center of the first covering member.
6. The laser processing system according to claim 3, wherein The beam channel is covered with a second covering member, and a first through slot and a second through slot that are communicated with each other penetrate through the center of the second covering member. The extending directions of the first through slot and the second through slot are perpendicular to each other.
7. The laser processing system according to claim 3, wherein, The dimming component further includes a dimming bracket, and the dimming bracket is connected to the sealed body and is located in the sealed cavity; Both the first dimming member and the second dimming member are installed on the dimming bracket; Or, the first dimming member is installed on the dimming bracket, and the second dimming member is installed on the sealed body.
8. The laser processing system according to any one of claims 1-7, characterized in that The beam inlet and the beam outlet are coaxially arranged.
9. The laser processing system according to any one of claims 1-7, characterized in that The beam inlet and the beam outlet are arranged in a staggered manner. The dimming device further includes a reflection component. The reflection component includes a first reflection member. The first reflection member is connected to the sealed body and is located in the sealed cavity. The first reflection member is used to adjust the beam incident from the beam inlet into a beam parallel to the axis of the beam outlet and reflect it to the dimming component.
10. The laser processing system according to any one of claims 1-7, characterized in that, The beam inlet and the beam outlet are arranged in a staggered manner. The dimming device further includes a reflection component. The reflection component includes a first reflection member and a second reflection member. The first reflection member and the second reflection member are both connected to the sealed body and are located in the sealed cavity. The first reflection member corresponds to the beam inlet, and the second reflection member corresponds to the beam outlet; The first reflection member is used to reflect the beam incident from the beam inlet to the second reflection member, and the second reflection member is used to adjust the beam reflected from the first reflection member into a beam parallel to the axis of the beam outlet and reflect it to the dimming component.
11. The laser processing system according to claim 10, wherein The reflection component further includes a first reflection bracket and a second reflection bracket. Both the first reflection bracket and the second reflection bracket are connected to the sealing body and are located within the sealing cavity. The first reflector is disposed on the first reflection bracket, and the first reflection bracket is used to adjust the position of the first reflector to adjust the reflection direction of the light beam. The second reflector is disposed on the second reflection bracket, and the second reflection bracket is used to adjust the position of the second reflector to adjust the reflection direction of the light beam.
12. The laser processing system according to claim 11, characterized in that, The first reflector is fixed to the first reflection bracket through a first thread pair, and the second reflector is fixed to the second reflection bracket through a second thread pair.
13. A laser processing device for processing PCB boards, characterized in that, It includes the laser processing system and the processing platform according to any one of claims 1-12. The processing platform is used to carry the PCB board, and the light beam emitted by the laser can irradiate the PCB board placed on the processing platform after passing through the light regulating device and the beam expander, so as to cut or drill the PCB board.