Laser module and laser processing apparatus
Patent Information
- Application Number
- CN202522268250.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-27
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-10-27
AI Technical Summary
[0004]本申请实施例的目的是提供一种激光模组和激光加工设备，以解决相关技术中激光头内合光占用空间比较大的问题
[0007]本申请实施例提供的激光模组和激光加工设备，第一激光器和第二激光器的出光方向均为第一方向，通过第一反射镜将第一激光光束反射成沿第二方向，通过第二反射镜将第二激光光束反射呈沿第三方向，而第二方向和第三方向相交，合束镜则接收被反射后的第一激光光束和第二激光光束，并使第一激光光束和第二激光光束的出射光路重合，进而实现了第一激光器出射的第一激光光束和第二激光器出射的第二激光光束空间合光，提高了激光模组的空间利用率，有利于激光模组内的其它功能器件的结构布局，而第一激光器和第二激光器的波长不同，使得激光模组可以加工更多类型的加工材料，丰富了激光加工模组和激光加工设备的加工场景。
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Figure CN224808715U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of laser processing technology, and in particular to a laser module and laser processing equipment. Background Technology
[0002] In related technologies, workpieces made of different materials have varying absorption rates for different wavelengths of light. To process workpieces of more material types, laser processing equipment is equipped with multiple laser heads of different wavelengths or integrates multiple lasers of different wavelengths within a single laser head.
[0003] For integrating multiple lasers of different wavelengths into a single laser head, a common approach is to combine two beams into a single beam on a plane, but this beam combining approach takes up a relatively large amount of space. Utility Model Content
[0004] The purpose of this application is to provide a laser module and laser processing equipment to solve the problem of large space occupied by the laser head in related technologies.
[0005] On one hand, embodiments of this application provide a laser module, including: A first laser, wherein the first laser is used to emit a first laser beam along a first direction; A second laser, which emits a second laser beam along a first direction, wherein the wavelengths of the first laser beam and the second laser beam are different; A beam combining component includes a first reflector, a second reflector, and a beam combiner; the first reflector is used to receive the first laser beam and reflect and output the first laser beam along a second direction; the second reflector is used to receive the second laser beam and reflect and output the second laser beam along a third direction, the third direction intersecting with the second direction; the beam combiner is used to receive the first laser beam and the second laser beam and make the output optical paths of the first laser beam and the second laser beam coincide.
[0006] On the other hand, embodiments of this application provide a laser processing apparatus, including: frame; A protective cover, which is movably mounted on the frame and forms a receiving space with the frame; A base plate, which is mounted on the frame, and the protective cover is capable of abutting against the base plate, or the base plate is located within the receiving space; As described in the above embodiments, the laser module is mounted on the frame and located within the receiving space, and is opposite to the base plate.
[0007] The laser module and laser processing equipment provided in this application embodiment have a first laser and a second laser, both emitting light in a first direction. The first laser beam is reflected by a first reflector into a second direction, and the second laser beam is reflected by a second reflector into a third direction. The second and third directions intersect. A beam combiner receives the reflected first and second laser beams and makes their outgoing light paths coincide, thereby achieving spatial beam combining of the first laser beam emitted by the first laser and the second laser beam emitted by the second laser. This improves the space utilization of the laser module and facilitates the structural layout of other functional devices within the laser module. Furthermore, the different wavelengths of the first and second lasers allow the laser module to process more types of materials, enriching the processing scenarios of the laser processing module and laser processing equipment. Attached Figure Description
[0008] Figure 1 This is a schematic diagram of an overall structure of the laser module provided in an embodiment of this application; Figure 2 This is an exploded view of a laser module provided in an embodiment of this application; Figure 3 This is a schematic diagram of a simulation of the first laser beam optical path provided in an embodiment of this application; Figure 4 This is another schematic diagram of the first laser beam optical path simulation provided in the embodiments of this application; Figure 5 This is a schematic diagram of a simulation of the second laser beam optical path provided in an embodiment of this application; Figure 6 This is another schematic diagram of the simulation of the second laser beam optical path provided in the embodiments of this application; Figure 7 This is a schematic diagram of a laser module provided in an embodiment of this application; Figure 8 This is a schematic diagram of a laser processing device provided in an embodiment of this application; Figure 9 This is a schematic diagram of a laser processing device provided in an embodiment of this application. Detailed Implementation
[0009] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0010] It should be understood that the steps described in the method embodiments of this disclosure may be performed in different orders and / or in parallel. Furthermore, the method embodiments may include additional steps and / or omit the steps shown. The scope of this disclosure is not limited in this respect.
[0011] The term "comprising" and its variations as used herein are open-ended inclusions, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the description below.
[0012] In related technologies, when performing laser beam combining, two or more beams of light are usually combined into one beam on a plane. This method is simple to combine, but it also has the problem of occupying a lot of space, which in turn hinders the arrangement of internal components of the laser beam combiner, resulting in low internal space utilization of the laser beam combiner.
[0013] To address the technical problems existing in related technologies, this application provides a laser module. Please refer to [link to relevant documentation]. Figures 1 to 7 This is to explain the laser module provided in this application, wherein, Figure 2 This is an exploded view of a laser module provided in an embodiment of this application, specifically based on... Figure 1 An exploded view of the overall structure is shown.
[0014] The laser module 10 includes a first laser 1, a second laser 2, and a beam combiner 3. The first laser 1 emits a first laser beam along a first direction, and the second laser 2 emits a second laser beam along the first direction. The wavelengths of the first laser beam and the second laser beam are different. The beam combiner 3 includes a first reflector 301, a second reflector 302, and a beam combiner 303. The first reflector 301 receives the first laser beam and reflects and outputs a first laser beam along a second direction. The second reflector 302 receives the second laser beam and reflects and outputs a second laser beam along a third direction, which intersects with the second direction. The beam combiner 303 receives the first laser beam and the second laser beam and makes the output optical paths of the first laser beam and the second laser beam coincide.
[0015] In some embodiments, the first laser 1 can be a blue laser and the second laser 2 can be an infrared laser; or, the first laser 1 can be a blue laser and the second laser can be a violet laser; or, the first laser 1 can be an infrared laser and the second laser can be a violet laser. The first laser 1 and the second laser 2 can also be two lasers with different wavelengths, which is not limited here.
[0016] like Figure 3 As shown, the first laser beam emitted by the first laser 1 is emitted along the first direction. The first reflector 301 is disposed in the output optical path of the first laser 1 so that the first laser beam reaches the first reflector 301. Then, under the action of the first reflector 301, the optical path is changed so that it is emitted along the second direction and then reaches the beam combiner 303 in the beam combining assembly 3.
[0017] like Figure 4 As shown, the second laser beam emitted by the second laser 2 is emitted along the first direction. The second reflector 302 is disposed in the output optical path of the second laser 2 so that the second laser beam reaches the second reflector 302. Then, under the action of the second reflector 302, the optical path is changed so that it is emitted along the third direction and then reaches the beam combiner 303 in the beam combining assembly 3.
[0018] Combination Figures 1 to 5 The first laser beam emitted by the first laser 1 and the second laser 2 reach the beam combiner 303 under the action of the first reflector 301 and the second reflector 302. Then, the beam combiner 303 combines the optical paths of the first laser beam and the second laser beam, that is, the optical paths of the first laser beam and the second laser beam emitted from the beam combiner 303 coincide.
[0019] It should be noted that the first direction intersects with the second direction, and the first direction also intersects with the third direction. In some embodiments, the second direction and the third direction may form a plane perpendicular to the first direction.
[0020] In some implementations, the angle formed by the second direction and the third direction is an acute angle.
[0021] In some embodiments, the reflecting surface of the first reflector 301 and the reflecting surface of the second reflector 302 can form an angle, which is an acute angle, meaning that the reflecting surfaces of the first reflector 301 and the second reflector 302 are not parallel. Specifically, the plane including the reflecting surface of the first reflector 301 and the reflecting surface including the second reflector 302 can form an angle, which is an acute angle. The angle can be less than 90°, such as 45°, 30°, 60°, or 75°.
[0022] Combination Figures 1 to 5The reflective surface of the first reflector 301 and the reflective surface of the second reflector 302 form an angle, and the angle is acute. This causes the emission direction of the first laser beam after passing through the first reflector 301 (second direction) to intersect with the emission direction of the second laser beam after passing through the second reflector 302 (third direction). Based on the placement of the first reflector 301 and the second reflector 302, the angle formed by the second direction and the third direction is acute.
[0023] In some implementations, combined Figures 1 to 5 The angle between the first laser beam emitted from the first laser 1 and the reflecting surface of the first reflector 301 is 45°.
[0024] In some embodiments, the angle between the second laser beam emitted from the second laser 2 and the reflecting surface of the second reflector 302 is 45°.
[0025] In some embodiments, if the beam combiner 303 reflects the first laser beam, the angle between the first laser beam output by the first reflector 301 and the reflecting surface of the beam combiner 303 is 45°; if the beam combiner 303 reflects the second laser beam, the angle between the second laser beam incident on the beam combiner 303 and the reflecting surface of the beam combiner 303 is 45°.
[0026] The first reflector 301 is set at a 45° angle relative to the first laser 1, and the second reflector 302 is set at a 45° angle relative to the second laser 2. This makes it easier to arrange the components inside the laser module 10.
[0027] In some implementations, combined Figure 2 The beam combining component 3 further includes a third reflector 304, which receives the second laser beam output from the second reflector 302 and reflects the second laser beam along the fourth direction to the beam combiner 303. The beam combiner 303 reflects one of the first and second laser beams and transmits the other of the first and second laser beams. The fourth direction intersects with the third direction and also intersects with the second direction.
[0028] like Figure 3 and Figure 4 As shown, in some embodiments, the beam combiner 303 reflects the first laser beam and transmits the second laser beam, with the direction of the reflected first laser beam being a fourth direction. In some embodiments, the beam combiner 303 reflects the second laser beam and transmits the first laser beam.
[0029] For example, after being reflected by the first reflector 301, the first laser beam reaches the third reflector 304. The third reflector 304 reflects the second laser beam output from the second reflector 302 again, so as to reflect and output the second laser beam along the fourth direction to the beam combiner 302.
[0030] In some embodiments, along the first direction, the first reflector 301 is located in front of the second reflector 302, and the beam combiner 303 is located in front of the second reflector 302 and the third reflector 304. Furthermore, by rationally arranging the positions of the various optical components, the structure of the laser module 10 is more compact.
[0031] In some embodiments, along a first direction, the beam combiner 303 is located between the first reflector 301 and the second reflector 302.
[0032] In some embodiments, the laser module 10 further includes a heat sink 4, with the first laser 1 and the second laser 2 arranged side-by-side along a fifth direction perpendicular to the first direction on the side of the heat sink 4. The heat sink 4 can dissipate heat from the first laser 1 and the second laser 2, thereby ensuring stable operation of the first laser 1 and the second laser 2.
[0033] like Figure 2 As shown, in some embodiments, the fifth direction is perpendicular to the first direction.
[0034] In some embodiments, the fifth direction is the Z-axis direction, and the first direction is one of the horizontal directions (such as the X direction or the Y direction).
[0035] In some embodiments, the beam combining assembly 3 further includes a bracket 305, which is fixedly mounted on one side of the heat sink 4 in the first direction. The first reflector 301, the second reflector 302, and the beam combiner 303 are all mounted on the bracket 305. The bracket 305 has through holes corresponding to the optical paths of the first laser beam and the second laser beam. In this way, the bracket 305 is used to fix the various optical components in the beam combining assembly.
[0036] As for the entire bracket 305, it is installed on one side of the heat sink 4 in the first direction in the entire laser module 10. At the same time, the bracket 305 is also provided with a through hole to facilitate the beam, so that the first laser beam and the second laser beam can enter the beam combining component 3 for processing.
[0037] In some embodiments, the laser module 10 further includes a galvanometer assembly 5, which is disposed in the output optical path of the beam combiner 303 and located on the side of the first laser 1 and the second laser 2 away from the heat sink 4. The galvanometer assembly 5 is used to receive the first laser beam or the second laser beam output by the beam combiner 303 and deflect the first laser beam or the second laser beam.
[0038] For example, the beam combined by the beam combiner 303 needs to be further processed. The galvanometer assembly 5 is used to receive the first laser beam and / or the second laser beam output by the beam combiner 303 and to deflect the first laser beam and / or the second laser beam.
[0039] Furthermore, considering the structural design of the laser module 10, the galvanometer assembly 5 is located on one side of the first laser 1 and the second laser, on a different side from the heat sink 4. Specifically, as shown... Figure 2 As shown, the galvanometer assembly 5 is located in the output optical path of the beam combiner 303 and is situated on the side of the first laser 1 and the second laser 2 away from the heat sink 4, making the structural layout of the laser module 10 more reasonable.
[0040] In some embodiments, the galvanometer assembly 5 includes an X-axis galvanometer and a Y-axis galvanometer, which cooperate to move the projected light spot along the X and Y directions.
[0041] In some embodiments, the laser module 10 further includes a motherboard assembly 6, which is disposed on one side of the heat sink 4 and the first laser 1 and the second laser 2 in the fifth direction, thus achieving a more compact structural layout. The motherboard assembly 6 includes a cooling fan 601 and a motherboard 602. The first laser 1 and the second laser 2 are electrically connected to the motherboard 602. The cooling fan 601 is disposed opposite to the heat sink 4 and can be used to dissipate heat from the heat sink 4. The motherboard 602 includes a circuit board, electronic components disposed on the circuit board, and various circuits connecting the various electronic components.
[0042] In some embodiments, the laser module 10 may further include a base plate assembly 7, such as Figure 1 As shown, the base plate assembly 7 is positioned opposite the main board assembly 6 and is located below the galvanometer assembly 5. Furthermore, relevant components can be installed and mounted on the base plate assembly 7 as needed, without any specific restrictions. In some embodiments, the heat sink 4 and the galvanometer assembly 5 can be mounted on the base plate assembly 7.
[0043] In some implementations, such as Figure 7 As shown, the laser module 10 may also include a housing 8, which has a receiving cavity. The base plate assembly 7 can be installed on the bottom of the housing 8. The first laser 1, the second laser 2, the beam combining assembly 3, the heat sink 4, the galvanometer assembly 5, and the main board assembly 6 can be located in the receiving cavity.
[0044] In some implementations, such as Figure 8 and Figure 9As shown, this application also provides a laser processing device, which includes a laser module 10, a frame 20, a protective cover 30, and a base plate 40 as described in any of the above embodiments. The protective cover 30 is movably mounted on the frame 20 and forms a receiving space with the frame 20. The base plate 40 is mounted on the frame 20, and the protective cover 30 can abut against the base plate 40 or be located within the receiving space. The laser module 10 is disposed on the frame 20, located within the receiving space, and is opposite to the base plate 40.
[0045] In some embodiments, laser processing equipment includes, but is not limited to, laser engraving machines, laser cutting machines, laser welding machines, etc., without specific limitations.
[0046] The protective cover 40 provides a closed processing environment and a safe working environment for external personnel, ensuring processing safety during laser processing. The protective cover 40 is movably mounted on the frame 20, opening or closing the processing space. In some embodiments, the protective cover 40 can be raised and lowered relative to the frame 20. In some embodiments, the protective cover 40 can be flipped relative to the frame 20. The protective cover 40 can reduce or prevent the laser emitted from the laser module 10 from passing through.
[0047] The base plate 40 can be used to support the workpiece so that the laser module 10 can process the workpiece located on the base plate 40.
[0048] In some embodiments, the laser module 10 is movably mounted on the frame 20 and can be raised and lowered relative to the frame 20 so that the laser processing equipment can process workpieces of different heights.
[0049] In summary, the laser module 10 and laser processing equipment provided in this application embodiment have the first laser 1 and the second laser 2 both emitting light in the first direction. The first laser beam is reflected by the first reflector 301 into a second direction, and the second laser beam is reflected by the second reflector 302 into a third direction. The second direction and the third direction intersect. The beam combiner 303 receives the reflected first and second laser beams and makes the emission paths of the first and second laser beams coincide, thereby realizing the spatial beam combining of the first laser beam emitted by the first laser 1 and the second laser beam emitted by the second laser 2. This improves the space utilization of the laser module 10 and is beneficial to the structural layout of other functional devices within the laser module 10. Furthermore, the different wavelengths of the first laser 1 and the second laser 2 allow the laser module 10 to process more types of materials, enriching the processing scenarios of the laser module 10 and the laser processing equipment.
[0050] The laser module 10 and laser processing equipment provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application. Moreover, those skilled in the art can make several improvements and modifications without departing from the principles of this application, and these improvements and modifications are also considered to be within the protection scope of this application.
Claims
1. A laser module, characterized in that, include: A first laser, wherein the first laser is used to emit a first laser beam along a first direction; A second laser, which emits a second laser beam along a first direction, wherein the wavelengths of the first laser beam and the second laser beam are different; A beam combining component includes a first reflector, a second reflector, and a beam combiner; the first reflector is used to receive the first laser beam and reflect and output the first laser beam along a second direction; the second reflector is used to receive the second laser beam and reflect and output the second laser beam along a third direction, the third direction intersecting with the second direction; the beam combiner is used to receive the first laser beam and the second laser beam and make the output optical paths of the first laser beam and the second laser beam coincide.
2. The laser module as described in claim 1, characterized in that, The angle formed by the second direction and the third direction is an acute angle; and / or, The reflecting surfaces of the first and second mirrors can form an angle, which is an acute angle.
3. The laser module as described in claim 1, characterized in that, The angle between the first laser beam emitted by the first laser and the reflecting surface of the first reflector is 45°; and / or, The angle between the second laser beam emitted from the second laser and the reflecting surface of the second mirror is 45°; and / or, If the beam combiner reflects the first laser beam, the angle between the first laser beam output by the first reflector and the reflecting surface of the beam combiner is 45°; if the beam combiner reflects the second laser beam, the angle between the second laser beam incident on the beam combiner and the reflecting surface of the beam combiner is 45°.
4. The laser module as described in claim 1, characterized in that, The beam combining component further includes a third reflector, which is used to receive the second laser beam output by the second reflector and reflect the second laser beam along the fourth direction to the beam combining mirror. The beam combining mirror is used to reflect one of the first laser beam and the second laser beam and transmit the other of the first laser beam and the second laser beam. The fourth direction intersects with both the third direction and the second direction.
5. The laser module as described in claim 4, characterized in that, Along the first direction, the first reflector is located in front of the second reflector, and the beam combiner is located in front of the second reflector and the third reflector; And / or, The beam combiner is located between the first reflector and the second reflector.
6. The laser module as described in claim 1, characterized in that, The laser module also includes a heat sink, and the first laser and the second laser are arranged side by side on the side of the heat sink along a fifth direction, which is perpendicular to the first direction.
7. The laser module as described in claim 6, characterized in that, The beam combining component also includes a bracket, which is fixedly installed on one side of the heat sink in the first direction. The first reflector, the second reflector, and the beam combining mirror are all installed on the bracket. The bracket has through holes corresponding to the optical paths of the first laser beam and the second laser beam.
8. The laser module as described in claim 6, characterized in that, The laser module also includes a galvanometer assembly, which is disposed in the output optical path of the beam combiner and located on the side of the first laser and the second laser away from the heat sink. The galvanometer assembly is used to receive the first laser beam or the second laser beam output by the beam combiner and deflect the first laser beam or the second laser beam.
9. The laser module as described in claim 6, characterized in that, The laser module also includes a motherboard assembly, which is located on one side of the heat sink and the first laser and the second laser in the fifth direction. The motherboard assembly includes a cooling fan and a motherboard. The first laser and the second laser are electrically connected to the motherboard. The cooling fan is disposed opposite to the heat sink.
10. A laser processing device, characterized in that, The laser processing equipment includes: frame; A protective cover, which is movably mounted on the frame and forms a receiving space with the frame; A base plate, which is mounted on the frame, and the protective cover is capable of abutting against the base plate, or the base plate is located within the receiving space; The laser module as described in any one of claims 1 to 9, wherein the laser module is disposed on the frame and located within the receiving space, and is opposite to the base plate.