Laser module, laser processing apparatus, and laser processing device

Abstract

A laser module (10), a laser processing apparatus (100), and a laser processing device. The laser module (10) comprises at least two laser generators (11), a reflective structure (17), and a focusing lens (13). The at least two laser generators (11) are sequentially arranged in a horizontal direction, and light exit directions of the at least two laser generators (11) are downward. The reflective structure (17) is used for receiving laser outputted by the at least two laser generators (11) and performing reflection at least twice, so as to output the laser downward to the focusing lens (13).

Description

Laser modules, laser processing devices, and laser processing equipment

[0001] This application claims priority to Chinese patent application No. 202321708230.4 filed on June 30, 2023, and No. 202421376769.9 filed on June 14, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present application relates to the field of laser processing technology, and in particular to a laser module, a laser processing device using the laser module, and laser processing equipment using the laser processing device. Background Art

[0003] Currently, laser processing equipment typically consists of a laser processing device and a drive mechanism. The laser processing device emits laser light, while the drive mechanism moves the laser processing device to process different parts of a workpiece. However, laser processing devices in the current industry are generally located at a relatively high height, resulting in an excessively high center of gravity and a tendency to wobble during movement. Technical issues

[0004] The main purpose of this application is to provide a laser module, which aims to reduce the overall height of the laser module and lower the center of gravity of the laser processing device, so as to improve the stability of the laser processing device during operation. Technical Solutions

[0005] To achieve the above objectives, the laser module proposed in this application includes at least two laser generators, a reflective structure and a focusing mirror;

[0006] The at least two laser generators are arranged in sequence along the horizontal direction, and the light emitting directions of the at least two laser generators are downward;

[0007] The reflective structure is used to receive the lasers output by the at least two laser generators and perform at least two reflections to output downward laser light to the focusing mirror.

[0008] In one embodiment, the reflective structure includes a first reflector and a second reflector, the number of the first reflectors is at least two, each of the first reflectors is used to receive lasers output by one or more of the laser generators and reflect them to the second reflector, and the second reflector is used to receive lasers output by all of the first reflectors and reflect them to the focusing mirror.

[0009] In one embodiment, the light emitting direction of each of the laser generators is vertically downward, the first reflecting surface of each of the first reflecting mirrors forms an angle of 45° with the horizontal direction, the second reflecting surface of the second reflecting mirror forms an angle of 45° with the horizontal direction, and each of the first reflecting surfaces is opposite to the second reflecting surface.

[0010] In one embodiment, in a direction in which the first reflector approaches the second reflector, the installation heights of the first reflectors decrease sequentially.

[0011] In one embodiment, the reflection light paths of the first reflectors are parallel.

[0012] In one embodiment, the reflective structure includes a third reflector and a second reflector, the third reflector is used to receive the laser output by the at least two laser generators and reflect it to the second reflector, and the second reflector is used to reflect the laser output by the third reflector to the focusing mirror.

[0013] In one embodiment, the light emitting direction of each laser generator is vertically downward, the third reflecting surface of the third reflecting mirror forms an angle of 45° with the horizontal direction, the second reflecting surface of the second reflecting mirror forms an angle of 45° with the horizontal direction, and the third reflecting surface is opposite to the second reflecting surface.

[0014] In one embodiment, the laser generators are located at the same height.

[0015] In one embodiment, the light emitting direction of each of the laser generators is vertically downward.

[0016] In one embodiment, the light emitting direction of the focusing mirror is vertically downward.

[0017] In one embodiment, the laser module further includes at least two collimating lenses, which are correspondingly arranged between the at least two laser generators and the reflective structure, and each of the collimating lenses is used to collimate the laser emitted by the corresponding laser generator and output it to the reflective structure.

[0018] This application also proposes a laser processing device, comprising:

[0019] The housing is provided with a heat dissipation duct, an air inlet connected to the heat dissipation duct, and an air outlet provided at the bottom and connected to the heat dissipation duct; and

[0020] The laser module as described above is installed in the heat dissipation duct.

[0021] In one embodiment, the laser processing device further comprises an air nozzle, wherein the air nozzle is provided at the air outlet, and an air passage, an air inlet and an air outlet communicating with the air passage are provided in the air nozzle;

[0022] The lower end of the focusing mirror extends into the air passage, and the optical axis of the focusing mirror passes through the air outlet.

[0023] The present application also proposes a laser processing device, comprising the laser processing apparatus as described above. Beneficial effects

[0024] The laser module, laser processing device, and laser processing equipment of the technical solution of the present application can reduce the vertical space occupied by the at least two laser generators by distributing them sequentially in the horizontal direction. The downward laser light output by the at least two laser generators is reflected at least twice by a reflective structure, and the downward laser light output is converged to a focusing mirror, so that the focusing mirror can output a laser beam that meets the processing conditions, while simultaneously reducing the vertical space occupied by the laser light path. In this way, by reducing the vertical space occupied by the at least two laser generators and the light path, the overall height of the laser module can be reduced, thereby lowering the center of gravity of the laser module, thereby facilitating the improvement of the stability of the laser module during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0026] FIG1 is a schematic structural diagram of an embodiment of a laser module of the present application;

[0027] FIG2 is a schematic structural diagram of a module housing of the laser module in FIG1 ;

[0028] FIG3 is a schematic diagram of a partial structure of another embodiment of the laser module of the present application.

[0029] Description of Figure Numbers:

[0030] 100. Laser processing device; 10. Laser module; 11. Laser generator; 13. Focusing mirror; 14. Collimating mirror; 15. Fixed carrier; 17. Reflection structure; 171. First reflector; 171a. First reflective surface; 173. Second reflector; 173a. Second reflective surface; 175. Third reflector; 175a. Third reflective surface; 19. Module housing; 191. Mounting cavity; 193. Mounting hole; 195. Mounting port; 30. Housing; 31. Cooling duct; 33. Air inlet; 35. Air outlet; 50. Cooling fan; 70. Air nozzle; 71. Air duct; 73. Air inlet; 75. Air outlet.

[0031] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. Modes for Carrying Out the Invention

[0032] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0033] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] In this application, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0035] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text is to include three parallel solutions. Taking "A and / or B as an example", it includes solution A, or solution B, or a solution in which both A and B are satisfied. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0036] Laser processing equipment utilizes lasers as a processing medium to achieve the purpose of processing workpieces. Because laser processing equipment does not directly contact the workpiece, it is unaffected by mechanical motion, which in turn reduces surface deformation. This means that laser processing equipment has a high degree of processing efficiency, making it widely used in production processes.

[0037] At present, laser processing equipment usually includes a laser processing device and a drive mechanism. The laser processing device can be used to emit laser light, while the drive mechanism can be used to drive the laser processing device to move so as to process different parts of the workpiece. However, the height of the laser processing devices in the current industry is generally set relatively high, which makes the center of gravity of the laser processing device too high, and thus causes the laser processing device to shake easily during movement. For example, in order to obtain a larger laser power, the laser processing device usually arranges multiple laser light sources vertically and emits light vertically, which results in a relatively high body height of the laser processing device.

[0038] Therefore, based on the above considerations, in order to solve the problem of unstable center of gravity of laser processing devices in the current industry, this application proposes a new laser module for use in laser processing devices. The laser module innovatively arranges at least two laser generators in sequence along the horizontal direction, and uses a reflective structure to reflect the laser light output by the at least two laser generators at least twice, and then outputs the laser light downward to the focusing mirror. This reduces the vertical space occupied by the at least two laser generators and the optical path, thereby reducing the height of the laser module and the overall height of the laser processing device, thereby lowering the center of gravity of the laser processing device and improving the stability of the laser processing device during operation.

[0039] It should be noted that the laser module proposed in this application is applied to a laser processing device, and the laser processing device can be used to laser cut a workpiece or to laser engrave a workpiece. Therefore, in other words, this application does not limit the specific type of laser processing device used by the laser module. It can be a laser cutting type device, a laser engraving type device, or other types of devices, as long as it needs to process a workpiece by emitting laser.

[0040] Next, the structure of the laser module proposed in the present application will be explained and illustrated by an embodiment. In one embodiment of the present application, please refer to Figure 1. The laser module 10 proposed in the present application includes at least two laser generators 11, a reflective structure 17 and a focusing mirror 13. The at least two laser generators 11 are arranged in sequence along the horizontal direction, and the light output direction of at least two laser generators 11 is downward; the reflective structure 17 is used to receive the laser output by the at least two laser generators 11 and perform at least two reflections to output downward laser light to the focusing mirror 13.

[0041] The laser generator 11 can be used to emit laser light so that the laser light can subsequently be used to perform corresponding processing on the workpiece. Since the principle of laser generation by the laser generator 11 is conventional, the specific structure of the laser generator 11 will not be described in detail here. The number of laser generators 11 can be two, or three, four, or more. The horizontal and vertical directions are defined when the laser processing device 100 used by the laser module 10 is in normal use.

[0042] Among them, the arrangement of at least two laser generators 11 includes that each laser generator 11 is located at the same height. At this time, the space in the horizontal direction can be fully utilized to arrange the at least two laser generators 11, thereby enhancing the effect of reducing the overall height of the laser module 10. Of course, there can also be at least two laser generators 11 with different heights, and the projections on the vertical projection plane overlap. In addition, the light emitting direction of each laser generator 11 is downward, which can include vertically downward, so that the light emitting direction of at least two laser generators 11 is more regular, thereby facilitating the output of the light beam in the required direction after passing through the reflective structure 17 and the focusing lens 13. At the same time, it also allows the laser generator 11 to be directly installed vertically without considering the tilt angle, which is conducive to improving the convenience of its installation.

[0043] Of course, in some embodiments, the light output direction of the laser generator 11 can also be tilted downward. In addition, the spacing between each two adjacent laser generators 11 can be set equal, so that the laser light output by at least two laser generators 11 can be evenly transmitted to the reflective structure 17 in the horizontal direction. Moreover, when the light output direction of each laser generator 11 is vertically downward and the installation height of each laser generator 11 is the same, the regularity of the distribution of the at least two laser generators 11 can be greatly improved, thereby greatly improving the convenience of their installation.

[0044] In addition, in order to facilitate the integration of at least two laser generators 11 into one and ensure the installation accuracy, the laser module 10 may also include a fixed carrier 15, and each laser generator 11 can be installed on the fixed carrier 15. Among them, the fixed carrier 15 can be a fixed plate, so that the fixed plate can provide a mounting position to install at least two laser generators 11. Of course, the fixed carrier 15 can also be a circuit board, so that while providing a mounting position for at least two laser generators 11 through the circuit board, at least two laser generators 11 can also be controlled. Alternatively, the fixed carrier 15 can also be a combination of a fixed plate and a circuit board, and the fixed plate can be installed on the circuit board, and it is convenient to set a mounting position on the circuit board to position and install the laser generator 11. At the same time, the laser generator 11 installed on the fixed plate can be electrically connected to the circuit board so that the circuit board can control it.

[0045] The reflective structure 17 can be used to reflect the laser light output by at least two laser generators 11 at least twice and then output it to the focusing mirror 13. Specifically, during the transmission process of the laser light, the reflective structure 17 can reflect the laser light two or more times (such as three times, four times, etc.), and finally output a downward laser light (the arrow in Figure 1 is a schematic diagram of the optical path). Among them, the reflective structure 17 can include a first reflector 171 and a second reflector 173 as described below. Of course, in other embodiments, it can also further include a reflector that performs three, four or more reflections. The present application does not limit the structure of the reflective structure 17. In addition, the light emitting direction of the reflective structure 17 is vertical, so as to output a vertically downward laser light, thereby facilitating the subsequent focusing mirror 13 to output a vertically downward laser light, so as to achieve direct processing of the workpiece and facilitate ensuring processing accuracy. Of course, in other embodiments, the laser light output by the reflective structure 17 can also be tilted downward.

[0046] The focusing mirror 13 can be used to focus the lasers emitted by the at least two laser generators 11 reflected by the reflective structure 17, thereby increasing the intensity of the light beam, and then processing the workpiece through the light beam with a higher intensity. The direction of the laser output by the focusing mirror 13 is vertically downward, so as to achieve direct processing of the workpiece and help ensure processing accuracy. Of course, the direction of the laser output by the focusing mirror 13 can also be tilted downward. In addition, the number of focusing mirrors 13 can be one, or of course at least two. This application does not limit the number of focusing mirrors 13.

[0047] When the laser module 10 of the technical solution of the present application is applied to a laser processing device 100, laser light can be output by at least two laser generators 11 in the laser module 10. The laser light output by the laser generator 11 can then be reflected to the focusing mirror 13 by the reflective structure 17. The laser light can be focused by the focusing mirror 13 to converge into a downward beam, thereby enabling laser processing of the workpiece. Moreover, since the laser module 10 in this solution includes at least two laser generators 11, multiple laser beams can be formed by the laser generator 11, and then converged into a laser beam with a relatively high intensity by the focusing mirror 13. At this time, the energy of the laser beam ultimately emitted by the laser processing device 100 can be enhanced, thereby facilitating the laser processing device 100 to effectively perform corresponding processing on the workpiece. Moreover, since the at least two laser generators 11 are arranged in sequence in the horizontal direction, the space occupied by the at least two laser generators 11 in the vertical direction can be greatly reduced. At the same time, the reflective structure 17 reflects the downward-facing laser light output by the at least two laser generators 11 at least twice, thereby reducing the vertical space occupied by the laser light path. Furthermore, by optimizing both the arrangement and the light path of the at least two laser generators 11, the overall height of the laser processing apparatus 100 is reduced, thereby lowering its center of gravity and improving its stability during operation.

[0048] Please refer to FIG. 1 . In one embodiment of the present application, the laser module 10 further includes a collimator lens 14 . The collimator lens 14 is disposed between the laser generator 11 and the reflective structure 17 .

[0049] In this embodiment, the collimator 14 can be located below the laser generator 11. The collimator 14 can be used to collimate the laser light output by the laser generator 11 and then output it to the reflective structure 17, so that the incident angles of the laser light reaching the reflective structure 17 are all the same, and thus the reflection directions are all the same. There can be only one collimator 14, which can receive the laser light output by all laser generators 11 and collimate it before outputting it to the reflective structure 17. There can also be at least two collimators 14, each corresponding to one or more laser generators 11, to receive the laser light output by the corresponding laser generator 11 and collimate it before outputting it to the reflective structure 17.

[0050] Referring to FIG1 , in one embodiment of the present application, the reflective structure 17 includes a first reflector 171 and a second reflector 173. There are at least two first reflectors 171. Each first reflector 171 is configured to receive laser light outputted by one or more laser generators 11 and reflect the light to the second reflector 173. The second reflector 173 is configured to receive laser light outputted by all first reflectors 171 and reflect the light to the focusing mirror 13. Furthermore, the collimating mirror 14 described above may be disposed between each laser generator 11 and the corresponding first reflector 171.

[0051] In this embodiment, the reflective structure 17 includes a first reflector 171 and a second reflector 173. This allows the laser light emitted by the laser generator 11 to be reflected twice by the reflective structure 17 before being transmitted to the focusing lens 13. This simplifies the optical transmission path and the structure of the reflective structure 17, thereby further reducing the vertical space occupied, further reducing the overall height of the laser processing apparatus 100 and lowering its center of gravity. This also improves the ease of manufacturing the reflective structure 17.

[0052] Please refer to Figure 1. In one embodiment of the present application, the number of first reflectors 171 and laser generators 11 is the same, and they are arranged in a one-to-one correspondence. Each first reflector 173 corresponds to a laser generator 11 and reflects the laser light output by the corresponding laser generator 11 to the second reflector 173. In this embodiment, the number of first reflectors 171 is set to correspond to the number of laser generators 11. On the one hand, it is convenient to reflect the laser light output by each laser generator 11 in a targeted manner. On the other hand, it also allows the volume of the first reflector 171 to be set relatively small, thereby improving the convenience of its installation in a limited space. In addition, when the number of collimating mirrors 14 introduced above is set to at least two, each collimating mirror 14 can be set between a laser generator 11 and a first reflector 171.

[0053] Referring to Figure 1 , in one embodiment of the present application, each laser generator 11 emits light vertically downward, the first reflective surface 171a of each first reflector 171 is tilted at 45°, and the second reflective surface 173a of the second reflector 172 is tilted at 45°. Each first reflective surface 171a faces the second reflective surface 173a. As a result, the height of the laser module 10 can be made even lower.

[0054] Referring to FIG. 1 , in one embodiment of the present application, as the first reflector 171 approaches the second reflector 173 , the installation heights of the first reflectors 171 decrease sequentially.

[0055] In this embodiment, the installation height of each first reflector 171 is set to decrease in the direction approaching the second reflector 173, so that the laser light reflected by the first reflector 171 that is farther away from the second reflector 173 will not be blocked by the first reflector 171 that is closer to the second reflector 173. In this way, the laser light reflected by each first reflector 171 can be normally and effectively reflected to the second reflector 173. Moreover, the structure of each first reflector 171 itself does not need to be affected and can still have a relatively simple structure.

[0056] Please refer to FIG. 1 . In one embodiment of the present application, in a direction in which the first reflector 171 approaches the second reflector 173 , the reflective light paths of the first reflectors 171 are parallel.

[0057] In this embodiment, the reflection light paths of the first reflectors 171 are arranged to be parallel, so that the paths of the laser beams reflected by the at least two first reflectors 171 are relatively regular, thereby facilitating the second reflector 173 to receive the laser beams reflected by the at least two first reflectors 171. The laser beams emitted by the laser generators 11 are parallel, and the first reflectors 171 are arranged in parallel, so that the reflection light paths of the first reflectors 171 are parallel.

[0058] Referring to FIG3 , in one embodiment of the present application, a large third reflector 175 can also be used to perform the functions of the multiple first reflectors 171 described above. That is, the reflective structure 17 includes a third reflector 175 and a second reflector 172. The third reflector 175 is configured to receive laser light outputted by at least two laser generators 11 and reflect it to the second reflector 172. The second reflector 172 is configured to reflect the laser light outputted by the third reflector 175 to the focusing mirror 13. Thus, the laser light outputted by the at least two laser generators 11 can be reflected twice by a single third reflector 175 and a single second reflector 172, thereby further reducing the vertical space occupied by the laser processing apparatus 100, thereby further reducing the overall height and center of gravity of the laser processing apparatus 100. With reference to FIG1 , the third reflector 175 in this embodiment is equivalent to combining the multiple small first reflectors 171 in the embodiment shown in FIG1 into a single large third reflector 175, thereby performing the functions of the multiple small first reflectors 171.

[0059] Referring to Figure 3 , in one embodiment of the present application, the light emission direction of each laser generator 11 is vertically downward, the third reflective surface 175a of the third reflector 175 is tilted at 45°, and the second reflective surface 173a of the second reflector 172 is tilted at 45°, with the third reflective surface 175a and the second reflective surface 173a facing each other. As a result, the height of the laser module 10 can be made lower.

[0060] In one embodiment of the present application, the function of the second reflector 172 can also be implemented by dividing it into multiple small reflectors.

[0061] Please refer to Figures 1 and 2. In one embodiment of the present application, the laser module 10 also includes a module housing 19, a mounting cavity 191 is provided in the module housing 19, and a mounting hole 193 connected to the mounting cavity 191 is also provided at the lower portion of the module housing 19; at least two laser generators 11 and a reflective structure are both provided in the mounting cavity 191, and at least a portion of the focusing mirror 13 is installed in the mounting hole 193.

[0062] In this embodiment, the module housing 19 can protect at least two laser generators 11, thereby reducing the possibility of damage to the laser generator 11 and the possibility of laser leakage. At least part of the focusing mirror 13 is installed in the mounting hole 193, which can facilitate the exposure of the focusing mirror 13 so that the laser emitted by the laser module 10 can be emitted normally. Moreover, it is also convenient for at least two laser generators 11, the focusing mirror 13 and the reflective structure 17 to be assembled into a whole through the module housing 19, thereby facilitating the one-time installation of this partial structure on the laser processing device 100. Among them, the focusing mirror 13 can be installed in the mounting hole 193 only at the upper end, and the lower end is exposed, so as to provide a mechanical structure foundation, thereby facilitating the installation of the air nozzle 70 structure on the lower end of the focusing mirror 13 as described below. Of course, it is also possible for the focusing mirror 13 to be completely set in the mounting hole 193. Furthermore, the laser generator 11, focusing lens 13, and reflective structure 17 can be mounted directly on the module housing 19 for securement, or alternatively, mounted on another carrier for securement. For example, when the at least two laser generators 11 are mounted on a fixed carrier 15 as described above, the module housing 19 can be provided with a mounting opening 195 communicating with the mounting cavity 191. The fixed carrier 15 can be fitted over the mounting opening 195, and the at least two laser generators 11 can be mounted on the inner side of the fixed carrier 15.

[0063] Referring to Figure 1 , this application also proposes a laser processing device 100, which includes a housing 30 and a laser module 10. The specific structure of the laser module 10 is similar to that of the aforementioned embodiments. Since this laser processing device 100 utilizes all the technical solutions of all the aforementioned embodiments, it at least has all the effects brought about by the technical solutions of the aforementioned embodiments, which will not be described in detail here. Specifically, a heat dissipation duct 31 is provided within the housing 30, an air inlet 33 communicating with the heat dissipation duct 31 is provided at the top of the housing 30, and an air outlet 35 communicating with the heat dissipation duct 31 is provided at the bottom of the housing 30. The laser module 10 is mounted within the heat dissipation duct 31, and the focusing lens 13 of the laser module 10 is exposed through the air outlet 35. At this point, the heat dissipation duct 31, air inlet 33, and air outlet 35 are configured so that external airflow can enter the heat dissipation duct 31 from the air inlet 33. After dissipating heat from the laser module 10 located within the heat dissipation duct 31, it is discharged from the air outlet 35 carrying the heat, thereby dissipating heat from the laser module 10, allowing the laser module 10 to operate normally and reducing the possibility of damage due to excessive heat. The air inlet 33 and air outlet 35 can both be open to improve airflow efficiency and enhance the heat dissipation effect on the laser module 10. Of course, the air inlet 33 and air outlet 35 can also be formed by a combination of multiple relatively small air holes. Furthermore, the air inlet and air outlet 35 can be located on the upper and lower surfaces of the housing 30, respectively, so that the air inlet and air outlet 35 are arranged relative to each other, which helps avoid sudden changes in speed caused by turning. This increases the flow rate of the heat dissipation airflow, further enhancing the heat dissipation effect on the laser module 10. Of course, in other embodiments, the air inlet 33 may also be disposed on the side wall of the housing 30 .

[0064] Please refer to Figure 1. In one embodiment of the present application, the laser processing device 100 also includes a cooling fan 50. The cooling fan 50 is arranged in the cooling air duct 31 to drive the external air flow into the cooling air duct 31 through the air inlet 33 and be discharged from the air outlet 35.

[0065] In this embodiment, the cooling fan 50 can provide power to better drive the airflow to form an airflow path from the air inlet 33 into the cooling duct 31 and then discharged from the air outlet 35, thereby further improving the heat dissipation effect of the laser module 10.

[0066] Referring to FIG. 1 , in one embodiment of the present application, a heat dissipation fan 50 is disposed above or below the laser module 10 .

[0067] In this embodiment, the cooling fan 50 is positioned above or below the laser module 10. This allows the cooling airflow from the cooling fan 50 to be better directed toward the laser module 10, thereby improving the heat dissipation effect on the laser module 10. Furthermore, the cooling fan 50 and the laser module 10 are arranged more compactly, thereby reducing the overall volume of the laser processing device 100. Of course, the present application is not limited to this embodiment. In other embodiments, the cooling fan 50 may be positioned on one side of the laser module 10, in which case the cooling fan 50 can discharge air from one side.

[0068] Please refer to Figure 1. In one embodiment of the present application, the laser processing device 100 also includes an air nozzle 70, which is arranged at the air outlet 35. An air duct 71 is provided in the air nozzle 70. The air nozzle 70 is also provided with an air inlet 73 and an air outlet 75 connected to the air duct 71; the lower end of the focusing mirror 13 in the laser module 10 extends into the air duct 71, and the optical axis of the focusing mirror 13 passes through the air outlet 75.

[0069] In this embodiment, the air inlet 73 of the air nozzle 70 can be connected to an air blowing device (e.g., a jet gun or blower). Therefore, under the blowing action of the air blowing device, the air flow blown by the air blowing device can enter the air passage 71 of the air nozzle 70 from the air inlet 73 and then be discharged from the air outlet 75 of the air nozzle 70, thereby achieving a configuration in which the air outlet 75 of the air nozzle 70 can blow air downward. At this time, the lower end of the focusing mirror 13 is inserted into the air passage 71 of the air nozzle 70, and the optical axis of the focusing mirror 13 is positioned through the air outlet 75, so that the laser light generated by the laser module 10 can be emitted from the air outlet 75. At the same time, the air flow from the air outlet 75 prevents external dust from approaching the second focusing mirror 133 through the air outlet 35, and dust is also blocked from other positions of the air nozzle 70. Therefore, this configuration helps ensure the cleanliness of the second focusing mirror 133, so that the laser module 10 can properly and effectively emit the required laser light.

[0070] The present application also proposes a laser processing device, which includes a laser processing device 100. The specific structure of the laser processing device 100 refers to the above-mentioned embodiment. Since the laser processing device adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the effects brought by the technical solutions of the above-mentioned embodiments, which will not be described in detail here. Among them, the laser processing device may also include a drive mechanism to drive the laser processing device 100 to move, thereby realizing processing of different parts of the workpiece. The drive mechanism can be a single linear module, or a combination of a single motor, a pulley and a conveyor belt, etc., to achieve movement in one direction. Of course, the drive mechanism can also be a combination of at least two linear modules, or a combination of at least two motors, pulleys and conveyor belts, etc., to achieve movement in different directions, thereby more conveniently realizing processing of different parts on the workpiece. In addition, the laser processing device may also include a supporting structure for placing the workpiece, so that the workpiece is stably and accurately mounted on the supporting structure to achieve subsequent stable processing of it.

[0071] The above description is merely an optional embodiment of the present application and does not limit the patent scope of the present application. All equivalent structural transformations made using the contents of the present application specification and drawings under the inventive concept of the present application, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A laser module, wherein: It includes at least two laser generators, a reflective structure and a focusing mirror; The at least two laser generators are arranged in sequence along the horizontal direction, and the light emitting directions of the at least two laser generators are downward; The reflective structure is used to receive the lasers output by the at least two laser generators, and perform at least two reflections to output the downward lasers to the focusing mirror.

2. The laser module according to claim 1, wherein: The reflective structure includes a first reflector and a second reflector. The number of the first reflectors is at least two. Each of the first reflectors is used to receive lasers output by one or more laser generators and reflect them to the second reflector. The second reflector is used to receive lasers output by all the first reflectors and reflect them to the focusing mirror.

3. The laser module according to claim 2, wherein: The light emitting direction of each laser generator is vertically downward, the first reflecting surface of each first reflecting mirror forms an angle of 45° with the horizontal direction, the second reflecting surface of the second reflecting mirror forms an angle of 45° with the horizontal direction, and each first reflecting surface is opposite to the second reflecting surface.

4. The laser module according to claim 2 or 3, wherein: In the direction in which the first reflector approaches the second reflector, the installation heights of the first reflectors decrease in sequence.

5. The laser module according to any one of claims 2 to 4, wherein: The reflected light paths of the first reflectors are parallel.

6. The laser module according to claim 1, wherein: The reflective structure includes a third reflector and a second reflector, the third reflector is used to receive the lasers output by the at least two laser generators and reflect them to the second reflector, and the second reflector is used to reflect the lasers output by the third reflector to the focusing mirror.

7. The laser module according to claim 6, wherein: The light emitting direction of each laser generator is vertically downward, the third reflecting surface of the third reflecting mirror forms an angle of 45° with the horizontal direction, the second reflecting surface of the second reflecting mirror forms an angle of 45° with the horizontal direction, and the third reflecting surface is opposite to the second reflecting surface.

8. The laser module according to any one of claims 1 to 7, wherein: The laser generators are located at the same height.

9. The laser module according to any one of claims 1 to 8, wherein: The light emitting direction of each laser generator is vertically downward.

10. The laser module according to any one of claims 1 to 9, wherein: The light emitting direction of the focusing mirror is vertically downward.

11. The laser module according to any one of claims 1 to 10, wherein: The laser module also includes at least two collimating lenses, which are correspondingly arranged between the at least two laser generators and the reflective structure, and each of the collimating lenses is used to collimate the laser emitted by the corresponding laser generator and output it to the reflective structure.

12. A laser processing device, wherein: include: The housing is provided with a heat dissipation duct, an air inlet connected to the heat dissipation duct, and an air outlet provided at the bottom and connected to the heat dissipation duct; and The laser module according to any one of claims 1 to 11 is installed in the heat dissipation duct.

13. The laser processing device according to claim 12, wherein: The laser processing device further comprises an air nozzle, which is arranged at the air outlet, and the air nozzle is provided with an air passage, an air inlet and an air outlet communicating with the air passage; The lower end of the focusing mirror extends into the airway, and the optical axis of the focusing mirror passes through the air outlet.

14. A laser processing device, wherein: Comprising the laser processing device as claimed in claim 12 or 13.

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