Laser module, laser processing device and laser processing equipment

Abstract

The utility model discloses a laser module, a laser processing device and laser processing equipment. The laser module comprises at least two laser generators, a reflection structure and a focus lens. The at least two laser generators are sequentially arranged in the horizontal direction, and the light emitting directions of the at least two laser generators face downwards; and the reflection structure is used for receiving the laser output by the at least two laser generators and carrying out at least two times of reflection so as to output downward laser to the focus lens. According to the technical scheme, the overall height of the laser module can be reduced, so that the gravity center of the laser module is lowered, and the stability of the laser module in the working process is improved.

Description

[0001] Related Applications

[0002] This application claims priority to Chinese patent application No. 202321708230.4 filed on June 30, 2023, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The utility model relates to the technical field of laser processing, 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

[0004] At present, laser processing equipment generally includes a laser processing device and a driving mechanism. The laser processing device can be used to emit laser light, while the driving 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 device 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. Utility Model Content

[0005] The main purpose of the utility model is to provide a laser module, aiming 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.

[0006] To achieve the above-mentioned purpose, the laser module proposed in the utility model includes at least two laser generators, a reflection structure and a focusing mirror;

[0007] 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;

[0008] 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 lasers downward to the focusing mirror.

[0009] Optionally, each of the laser generators is located at the same height;

[0010] And / or, the distance between each two adjacent laser generators is equal;

[0011] And / or, the light emitting direction of each of the laser generators is vertically downward;

[0012] And / or, the laser module further comprises a fixed carrier, and each of the laser generators is mounted on the fixed carrier;

[0013] And / or, the light emitting direction of the focusing mirror is vertically downward;

[0014] And / or, the laser module further includes a collimator lens, and the collimator lens is arranged between the laser generator and the reflective structure.

[0015] Optionally, 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, and the second reflector is used to receive lasers output by all the first reflectors and reflect them to the focusing mirror.

[0016] Optionally, 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.

[0017] Optionally, in a direction in which each of the first reflectors approaches the second reflector, the installation heights of each of the first reflectors decrease sequentially;

[0018] And / or, the reflection light paths of the first reflectors are parallel.

[0019] Optionally, 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.

[0020] Optionally, the light emitting direction of each laser generator is vertically downward, the third reflecting surface of the third reflector forms an angle of 45° with the horizontal direction, the second reflecting surface of the second reflector forms an angle of 45° with the horizontal direction, and the third reflecting surface is opposite to the second reflecting surface.

[0021] Optionally, 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.

[0022] The utility model also provides a laser processing device, comprising:

[0023] 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

[0024] The laser module as described above is installed in the heat dissipation duct.

[0025] Optionally, the laser processing device further comprises an air nozzle, the air nozzle is arranged at the air outlet, an air passage, an air inlet and an air outlet communicating with the air passage are arranged in the air nozzle;

[0026] The lower end of the focusing mirror extends into the airway, and the optical axis of the focusing mirror passes through the air outlet.

[0027] The utility model also provides a laser processing equipment, comprising the laser processing device as described above.

[0028] The laser module, laser processing device and laser processing equipment of the technical solution of the utility model can reduce the space occupied by at least two laser generators in the vertical direction by distributing at least two laser generators in sequence in the horizontal direction, and reflect the downward laser output by at least two laser generators at least twice through the reflection structure, and output the downward laser to the focusing mirror for convergence, so that the focusing mirror can output a laser beam that meets the processing conditions, and at the same time reduce the space occupied by the laser light path in the vertical direction. In this way, by reducing the space occupied by at least two laser generators and the light path in the vertical direction, the overall height of the laser module can be reduced and the center of gravity of the laser module can be lowered, which is conducive to improving the stability of the laser module during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0030] Figure 1 This is a schematic structural diagram of an embodiment of a laser module of the utility model;

[0031] Figure 2 for Figure 1 Schematic diagram of the structure of the module housing of the laser module.

[0032] Description of Figure Numbers:

[0033]

[0034]

[0035] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes 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 the features. In addition, the meaning of "and / or" appearing in the full 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 that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0040] Laser processing equipment uses laser as a processing medium to achieve the purpose of processing workpieces. Among them, since the laser processing equipment does not directly contact the workpiece, it is not affected by mechanical movement, and the surface of the workpiece is not easily deformed. In other words, laser processing equipment has a high processing effect on the workpiece, making it widely used in the production process.

[0041] At present, laser processing equipment usually includes a laser processing device and a driving mechanism. The laser processing device can be used to emit laser, and the driving 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 higher body height of the laser processing device.

[0042] 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 laser processing devices. The laser module innovatively arranges at least two laser generators in sequence in the horizontal direction, and uses a reflection structure to reflect the laser output by at least two laser generators at least twice, and then outputs the laser downward to the focusing mirror. This reduces the space occupied by at least two laser generators and the optical path in the vertical direction, and then reduces the height of the laser module and the overall height of the laser processing device, so as to reduce the center of gravity of the laser processing device and improve the stability of the laser processing device during operation.

[0043] 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 for laser cutting of a workpiece, or for laser engraving of a workpiece. Therefore, in other words, the specific type of laser processing device used by the laser module is not limited in this application, and it can be a laser cutting type device, a laser engraving type device, or other types of devices, as long as it is a device that needs to process a workpiece by emitting laser.

[0044] Next, the structure of the laser module proposed in this application will be explained and illustrated by an embodiment. In one embodiment of this 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 lasers output by the at least two laser generators 11, and perform at least two reflections to output downward lasers to the focusing mirror 13.

[0045] The laser generator 11 can be used to emit laser so that the corresponding processing of the workpiece can be realized by the laser later. Among them, since the principle of the laser generator 11 generating laser is a prior art, the specific structure of the laser generator 11 is not described in detail here. The number of laser generators 11 can be two, of course, it can also be three, four or more. The horizontal direction and the vertical direction are the horizontal direction and the vertical direction defined when the laser processing device 100 used by the laser module 10 is in normal use.

[0046] 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 at least two laser generators 11, thereby enhancing the effect of reducing the overall height of the laser module 10. Of course, there may also be at least two laser generators 11 with different heights, and the projections on the vertical projection plane may overlap. In addition, the light emitting direction of each laser generator 11 is downward, which may 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 desired direction after the reflective structure 17 and the focusing lens 13. At the same time, the laser generator 11 can be directly installed vertically without considering the tilt angle, which is conducive to improving the convenience of its installation.

[0047] Of course, in some embodiments, the light emitting direction of the laser generator 11 may also be tilted downward. In addition, the spacing between each two adjacent laser generators 11 may be set equal, so that the lasers output by at least two laser generators 11 can be uniformly transmitted to the reflective structure 17 in the horizontal direction. Moreover, when the light emitting directions of each laser generator 11 are vertically downward, and the installation heights of each laser generator 11 are the same, the regularity of the distribution of at least two laser generators 11 can be greatly improved, so as to greatly improve the convenience of their installation.

[0048] In addition, in order to facilitate the integration of at least two laser generators 11 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 the 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 the mounting position on the circuit board to position and install the laser generator 11, and 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.

[0049] The reflective structure 17 can be used to reflect the laser light outputted by at least two laser generators 11 at least twice and then output it to the focusing lens 13. Specifically, during the transmission process of the laser light, the reflective structure 17 can reflect the laser light twice or more times (such as three times, four times, etc.), and finally output the laser light facing downward ( Figure 1 The arrow in the figure is a schematic diagram of the optical path). Among them, the reflective structure 17 may include a first reflector 171 and a second reflector 173 as described below. Of course, in other embodiments, it may further include a third reflector or a fourth reflector, etc. 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, thereby facilitating the subsequent focusing mirror 13 to output a vertically downward laser, so as to achieve the direct processing of the workpiece and help ensure the processing accuracy. Of course, in other embodiments, the laser output by the reflective structure 17 may also be tilted downward.

[0050] The focusing mirror 13 can be used to focus the lasers emitted by 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 relatively strong 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 the 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, and the present application does not limit the number of focusing mirrors 13.

[0051] When the laser module 10 of the technical solution of the utility model is applied to the laser processing device 100, the laser can be output through at least two laser generators 11 in the laser module 10, and then the laser output by the laser generator 11 can be reflected to the focusing mirror 13 through the reflection structure 17, and the laser can be focused by the focusing mirror 13 to converge into a downward beam, so that the workpiece can be laser processed. In addition, 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 strong intensity by the focusing mirror 13. At this time, the energy of the laser beam finally emitted by the laser processing device 100 can be enhanced, so as to facilitate the laser processing device 100 to effectively process the workpiece accordingly. 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 also reflects the downward laser light output by the at least two laser generators 11 at least twice, so that the space occupied by the laser light path in the vertical direction is also reduced. In addition, the arrangement direction and light path of the at least two laser generators 11 are optimized, the overall height of the laser processing device 100 is reduced, and the center of gravity of the laser processing device 100 is lowered, which is conducive to improving the stability of the laser processing device 100 during operation.

[0052] Please refer to Figure 1 In one embodiment of the present application, the laser module 10 further includes a collimator lens 14 , which is disposed between the laser generator 11 and the reflective structure 17 .

[0053] In this embodiment, the collimator 14 can be located below the laser generator 11, and the collimator 14 can be used to collimate the laser output by the laser generator 11 and then output it to the reflective structure 17, so that the incident angles of the lasers reaching the reflective structure 17 are the same, and thus the reflection directions are the same. Among them, the number of collimators 14 can be one, which can receive the lasers output by all the laser generators 11 and collimate them before outputting them to the reflective structure 17. The number of collimators 14 can also be at least two, and each collimator 14 corresponds to one or more laser generators 11, so as to receive the lasers output by the corresponding laser generator 11 and collimate them before outputting them to the reflective structure 17.

[0054] Please refer to Figure 1In 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 used to receive lasers output by one or more laser generators 11 and reflect them to the second reflector 173. The second reflector 173 is used to receive lasers output by all first reflectors 171 and reflect them to the focusing mirror 13. In addition, the collimator 14 described above can be arranged between each laser generator 11 and the corresponding first reflector 171.

[0055] In this embodiment, the reflective structure 17 includes a first reflector 171 and a second reflector 173, so that the laser emitted by the laser generator 11 is transmitted to the focusing lens 13 after being reflected twice on the reflective structure 17. At this time, the optical transmission path is relatively simple, and the structure of the reflective structure 17 can be simplified, which is conducive to further reducing the space occupied in the vertical direction, so as to further reduce the overall height of the laser processing device 100 and lower the center of gravity of the laser processing device 100. At the same time, the convenience of manufacturing the reflective structure 17 can also be improved.

[0056] 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 one by one. Each first reflector 173 corresponds to a laser generator 11, and reflects the laser 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 output by each laser generator 11 in a targeted manner. On the other hand, the volume of the first reflector 171 can be set relatively small to improve the convenience of its installation in a limited space. In addition, when the number of the collimating mirrors 14 introduced above is set to at least two, each collimating mirror 14 can be arranged between a laser generator 11 and a first reflector 171.

[0057] Please refer to Figure 1 In one embodiment of the present application, the light emitting direction of each laser generator 11 is vertically downward, the first reflection surface of each first reflection mirror 171 is inclined at 45°, the second reflection surface of the second reflection mirror 172 is inclined at 45°, and each first reflection surface is opposite to the second reflection surface. As a result, the height of the laser module 10 can be made lower.

[0058] Please refer to Figure 1 In one embodiment of the present application, in the direction in which the first reflector 171 approaches the second reflector 173 , the installation heights of the first reflectors 171 are sequentially reduced.

[0059] In this embodiment, the installation height of each first reflector 171 is set to be successively lowered in the direction close to the second reflector 173, so that the laser reflected by the first reflector 171 far away from the second reflector 173 will not be blocked by the first reflector 171 close to the second reflector 173, thereby facilitating the laser reflected by each first reflector 171 to be normally and effectively reflected to the second reflector 173. Moreover, at this time, the structure of each first reflector 171 itself does not need to be affected, and can still have a relatively simple structure.

[0060] Please refer to Figure 1 In one embodiment of the present application, in the direction in which the first reflector 171 approaches the second reflector 173 , the reflected light paths of the first reflectors 171 are parallel.

[0061] In this embodiment, the reflected light paths of the first reflectors 171 are arranged to be parallel, so that the paths of the lasers reflected by at least two first reflectors 171 are relatively regular, thereby facilitating the second reflector 173 to receive the lasers reflected by at least two first reflectors 171. The lasers emitted by the laser generators 11 are parallel, and the first reflectors 171 are arranged in parallel, so that the reflected light paths of the first reflectors 171 are parallel.

[0062] Please refer to Figure 1 In one embodiment of the present application, a large third reflector can also be used to realize the functions of the above-mentioned multiple first reflectors 171, that is, the reflective structure 17 includes a third reflector (not shown) and a second reflector 172, the third reflector is used to receive the lasers output by at least two laser generators 11, and reflect them to the second reflector 172, and the second reflector 172 is used to reflect the lasers output by the third reflector to the focusing mirror 13. Thus, the lasers output by at least two laser generators 11 can be reflected twice by a third reflector and a second reflector 172, which is beneficial to further reduce the space occupied in the vertical direction, so as to further reduce the overall height of the laser processing device 100 and lower the center of gravity of the laser processing device 100. Combined with Figure 1 The third reflector in this embodiment is equivalent to Figure 1 In the illustrated embodiment, a plurality of small third reflectors 171 are synthesized into a large reflector to realize the functions of a plurality of small third reflectors 171 .

[0063] Please refer to Figure 1 In one embodiment of the present application, the light emitting direction of each laser generator 11 is vertically downward, the third reflection surface of the third reflection mirror is inclined at 45°, the second reflection surface of the second reflection mirror 172 is inclined at 45°, and the third reflection surface is opposite to the second reflection surface. Thus, the height of the laser module 10 can be made lower.

[0064] In one embodiment of the present application, the function of the second reflector 172 may also be implemented by dividing it into a plurality of small reflectors.

[0065] Please refer to Figure 1 and Figure 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.

[0066] 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 the 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 realization 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 arranged in the mounting hole 193. In addition, the laser generator 11, the focusing lens 13 and the reflective structure 17 can be directly mounted on the module housing 19 for fixing, and of course, can also be additionally mounted on other carriers for fixing. For example, when 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 port 195 communicating with the mounting cavity 191, and the fixed carrier 15 can cover the mounting port 195, and the at least two laser generators 11 can be mounted on the inner side of the fixed carrier 15.

[0067] Please refer to Figure 1The present 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 refers to the above embodiment. Since the present laser processing device 100 adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here. Among them, a heat dissipation duct 31 is provided in the housing 30, an air inlet 33 connected to the heat dissipation duct 31 is provided at the top of the housing 30, and an air outlet 35 connected to the heat dissipation duct 31 is provided at the bottom of the housing 30; the laser module 10 is installed in the heat dissipation duct 31, and the focusing lens 13 of the laser module 10 can be exposed from the air outlet 35. At this time, the heat dissipation duct 31, the air inlet 33 and the air outlet 35 are arranged so that the external airflow can enter the heat dissipation duct 31 from the air inlet 33, and after dissipating heat with the laser module 10 located in the heat dissipation duct 31, it is discharged from the air outlet 35 after carrying the heat, thereby achieving heat dissipation of the laser module 10, so that the laser module 10 can work normally and reduce the possibility of damage due to excessive heat. Among them, the air inlet 33 and the air outlet 35 can both be openly arranged to improve the wind efficiency and improve the heat dissipation effect of the laser module 10. Of course, the air inlet 33 and the air outlet 35 can also be formed by a combination of multiple relatively small air holes. In addition, the air inlet and the air outlet 35 can be respectively arranged on the upper surface and the lower surface of the housing 30, so that the air inlet and the air outlet 35 are arranged relative to each other, which is conducive to avoiding the rapidity caused by turning. That is, the flow rate of the heat dissipation airflow can be increased, and then the heat dissipation effect of the laser module 10 can be further improved. Of course, in other embodiments, the air inlet 33 may also be disposed on the side wall of the housing 30 .

[0068] Please refer to Figure 1 In one embodiment of the present application, the laser processing device 100 also includes a cooling fan 50 , which is disposed in the cooling air duct 31 and is used to drive external air flow into the cooling air duct 31 through the air inlet 33 and be discharged from the air outlet 35 .

[0069] In this embodiment, the cooling fan 50 can provide power to better drive the airflow to form an air flow path from the air inlet 33 into the cooling air duct 31 and then discharged from the air outlet 35, thereby helping to further improve the heat dissipation effect of the laser module 10.

[0070] Please refer to Figure 1 In one embodiment of the present application, the cooling fan 50 is disposed above or below the laser module 10 .

[0071] In this embodiment, the cooling fan 50 is arranged above or below the laser module 10, so that on the one hand, the cooling airflow discharged by the cooling fan 50 can be better directed toward the laser module 10, thereby improving the cooling effect of the laser module 10. On the other hand, the cooling fan 50 and the laser module 10 are also distributed more compactly, which is conducive to reducing the overall volume of the laser processing device 100. Of course, the present application is not limited to this. In other embodiments, it is also possible to arrange the cooling fan 50 on one side of the laser module 10, and the cooling fan 50 can discharge air from one side.

[0072] 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, and 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.

[0073] In this embodiment, the air inlet 73 of the air nozzle 70 can be used to connect to the blowing device (for example, a jet gun or a blower, etc.), so under the blowing action of the blowing device, the airflow blown by the 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, so as to realize the setting that the air outlet 75 of the air nozzle 70 can blow the airflow downward. At this time, the lower end of the focusing mirror 13 is extended into the air passage 71 of the air nozzle 70, and the optical axis of the focusing mirror 13 is penetrated in the air outlet 75, so that the laser formed by the laser module 10 can be emitted from the air outlet 75. At the same time, under the action of the airflow blown out by the air outlet 75, the dust from the outside cannot approach the second focusing mirror 133 from the air outlet 35, and the dust cannot pass through other positions of the air nozzle 70. Therefore, such a setting is conducive to ensuring the cleanliness of the second focusing mirror 133, so that the laser module 10 can normally and effectively emit the required laser.

[0074] 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 embodiment. Since the laser processing device adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here. Among them, the laser processing equipment can also include a driving mechanism to drive the laser processing device 100 to move, so as to realize the processing of different parts of the workpiece. The driving 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 driving 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, so as to more conveniently realize the processing of different parts on the workpiece. In addition, the laser processing equipment can also include a bearing structure for placing the workpiece, so that the workpiece can be stably and accurately mounted on the bearing structure to achieve subsequent stable processing of it.

[0075] The above description is only a preferred embodiment of the present application, and does not limit the patent scope of the present application. All equivalent structural changes made by using the contents of the present application specification and drawings under the inventive concept of the present application, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A laser module, characterized in that: 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, characterized in that: Each of the laser generators is located at the same height; And / or, the light emitting direction of each of the laser generators is vertically downward; And / or, the light emitting direction of the focusing mirror is vertically downward.

3. The laser module according to claim 1, characterized in that: The reflective structure comprises 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, and the second reflector is used to receive lasers output by all the first reflectors and reflect them to the focusing mirror; or, 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.

4. The laser module according to claim 3, characterized in that: When the reflective structure includes a first reflector and a second reflector, the light emitting direction of each laser generator is vertically downward, the first reflective surface of each first reflector forms an angle of 45° with the horizontal direction, the second reflective surface of the second reflector forms an angle of 45° with the horizontal direction, and each first reflective surface is opposite to the second reflective surface.

5. The laser module according to claim 3, characterized in that: In the direction where the first reflector approaches the second reflector, the installation heights of the first reflectors are successively reduced; And / or, the reflected light paths of the first reflectors are parallel.

6. The laser module according to claim 3, characterized in that: When the reflective structure includes a third reflector and a second reflector, the light emitting direction of each laser generator is vertically downward, the third reflective surface of the third reflector forms an angle of 45° with the horizontal direction, the second reflective surface of the second reflector forms an angle of 45° with the horizontal direction, and the third reflective surface is opposite to the second reflective surface.

7. The laser module according to any one of claims 1 to 6, characterized in that: 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.

8. A laser processing device, characterized in that: 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 7 is installed in the heat dissipation duct.

9. The laser processing device according to claim 8, characterized in that: 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.

10. A laser processing device, characterized in that: Comprising the laser processing device as described in claim 8 or 9.

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