Laser processing apparatus

Abstract

The application provides a kind of laser processing equipment, comprising: rack assembly, bottom plate, support, laser module, first fan, second fan;Bottom plate is connected to the rack assembly, the bottom plate is used to carry workpiece;Support is connected to the rack assembly, and is spaced apart from the bottom plate, and the side opposite to the bottom plate of the support is provided with air outlet;Laser module is connected to the support, and is opposite to the bottom plate, and the laser module can process workpiece in the processing area of the bottom plate;First fan is arranged in the support;Second fan is arranged in the rack assembly;Wherein, the first fan is used to form airflow, the airflow flows out through the air outlet, the airflow of the air outlet flows towards the processing area or the side of the processing area away from the second fan, and the second fan is used to suck the gas of the air outlet, to ensure the efficiency and quality of laser processing equipment processing.

Description

Technical Field

[0001] This application relates to the field of laser processing technology, and more particularly to a laser processing device. Background Technology

[0002] Laser processing equipment generates fumes during the processing of objects. These fumes mainly originate from various volatile substances produced during laser etching. If these fumes are not removed in a timely and effective manner, they can easily affect the efficiency and quality of laser processing. Utility Model Content

[0003] This application provides a laser processing device that can effectively and promptly remove smoke, ensuring the efficiency and quality of laser processing.

[0004] This application provides a laser processing device, which includes: Rack components; A base plate, connected to the frame assembly, is used to support the workpiece; A bracket is connected to the frame assembly and spaced apart from the base plate. An air outlet is provided on the side of the bracket opposite to the base plate. A laser module is connected to the bracket and is opposite to the base plate. The laser module is capable of processing workpieces within the processing area of ​​the base plate. A first fan is mounted on the bracket; A second fan is provided on the rack assembly; The first fan is used to generate airflow, which flows out through the air outlet. The airflow flowing out of the air outlet is directed toward the processing area or toward the side of the processing area away from the second fan. The second fan is used to draw in the gas flowing out of the air outlet.

[0005] Optionally, the rack assembly is disposed on one side of the support; the air outlet includes a first air outlet, which is disposed on the side of the support away from the rack assembly.

[0006] Optionally, the air outlet includes a second air outlet, the bracket includes a lower side plate opposite to the base plate, and the second air outlet is disposed on the lower side plate; the bracket has a receiving space, the laser module is disposed in the receiving space, and the bracket also includes a flow guide, the flow guide is disposed on the second air outlet, and the flow guide is used to guide the airflow flowing out of the second air outlet to flow away from the second fan.

[0007] Optionally, the air guide is inclinedly disposed at the second air outlet and extends in a direction away from the second fan. The air guide includes a first end away from the rack assembly and a second end close to the rack assembly. The first end is connected to the lower side plate, and the distance between the first end and the bottom plate is less than the distance between the second end and the bottom plate.

[0008] Optionally, the air guide is provided with an air inlet, an air outlet, and an air duct. The air guide has an air inlet on the side away from the bottom plate that communicates with the second air outlet. The air guide has an air outlet at the end away from the frame assembly. The end of the air guide that is away from the frame assembly extends beyond the lower side plate. The air duct connects the air inlet and the air outlet. The air duct is inclined relative to the bottom plate and extends along the direction from the air inlet to the air outlet, and in a direction away from the second fan.

[0009] Optionally, the bracket has an air inlet at the top opposite to the base plate, the air inlet is connected to the receiving space, and the first fan is installed at the air inlet.

[0010] Optionally, the bracket includes a lower side plate facing the base plate, the lower side plate having an opening corresponding to the laser module; at least a portion of the first air outlet is located on the side of the opening away from the second fan.

[0011] Optionally, the first air outlet is provided on at least one side of the opening along the width direction of the rack assembly.

[0012] Optionally, the laser processing equipment further includes a heat sink, which is connected to the laser module. The first fan is located on one side of the heat sink, and the airflow generated by the first fan flows through the heat sink and exits from the air outlet.

[0013] Optionally, the first fan is at least partially opposite to the heat sink; and / or, The heat sink is at least partially opposite to the air outlet.

[0014] Optionally, the laser module includes a laser and a galvanometer assembly, wherein the laser is used to emit a laser beam, the galvanometer assembly is used to deflect the laser beam, and the galvanometer assembly is disposed on the bracket.

[0015] Optionally, the rack assembly includes a rack and a protective cover, the protective cover being movably mounted on the rack, the protective cover and the rack forming a receiving space, the base plate and the bracket being connected to the rack, and the bracket and the laser module being located within the receiving space.

[0016] In this embodiment of the laser processing equipment, during processing, the airflow generated by the first fan is continuously delivered downwards from the air outlet, and the airflow is directed towards the processing area or the side of the processing area away from the second fan. The second fan, in conjunction with the air outlet, is used to draw in the gas flowing out of the air outlet. The downward airflow output from the air outlet is drawn in by the negative pressure generated by the second fan and becomes a lateral flow, thereby guiding the airflow located in the processing area or the side away from the second fan, through the processing area and towards the exhaust port of the second fan. This ensures that the fumes generated during processing can be effectively and continuously removed from the processing area and discharged from the exhaust port on the frame assembly to the outside of the laser processing equipment. In related technologies, because the air outlet is close to the second fan, and the airflow flowing out of the air outlet is directed towards the processing area near the second fan, most of the airflow is directly drawn away by the second fan without passing through the processing area, while the small amount of airflow that enters the processing area is difficult to discharge effectively, easily causing airflow stagnation and eddies. In contrast, this application, through the reasonable layout of the air outlet, directs the airflow toward the processing area or the side of the processing area away from the second fan. The second fan then continuously draws in the smoke-laden airflow, ensuring a stable and continuous airflow through the processing area. This results in smooth airflow without stagnation or cavities, thus preventing the airflow from carrying smoke into cavities or forming eddies. This also prevents smoke from accumulating in the processing area, allowing the laser to act more precisely on the workpiece surface, reducing engraving errors caused by smoke interference, and effectively improving the accuracy of engraving and other processing operations. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the laser processing equipment provided in the embodiments of this application.

[0019] Figure 2 This is a schematic diagram of the structure of the laser processing equipment with the protective cover removed, as provided in the embodiments of this application.

[0020] Figure 3 This is a structural schematic diagram of the laser processing equipment provided in an embodiment of this application from another angle.

[0021] Figure 4 for Figure 3 The laser processing equipment shown is a cross-sectional view along the AA direction.

[0022] Figure 5 This is a schematic diagram of the airflow direction inside the laser processing equipment provided in the embodiments of this application.

[0023] Figure 6 This is an exploded view of some components of the laser processing equipment provided in an embodiment of this application. Detailed Implementation

[0024] 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0025] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0026] Please refer to Figures 1 to 5 This application provides a laser processing device 10, which includes, but is not limited to, laser engraving machines, laser cutting machines, laser welding machines, and other devices that use lasers to change materials.

[0027] In some embodiments, the laser processing equipment 10 includes a frame assembly 140, a base plate 130, a support 110, a laser module 200, a first fan 300, and a second fan 400. The base plate 130 is connected to the frame assembly 140 and is used to support workpieces. The support 110 is connected to the frame assembly 140 and is spaced apart from the base plate 130. An air outlet 120 is provided on the side of the support 110 opposite to the base plate 130. The laser module 200 is connected to the support 110 and is opposite to the base plate 130. The laser module 200 can process workpieces in the processing area of ​​the base plate 130. The first fan 300 is disposed on the support 110. The second fan 400 is disposed on the frame assembly 140. The first fan 300 is used to generate airflow, which flows out through the air outlet 120. The airflow flowing out of the air outlet 120 is directed toward the processing area or toward the side of the processing area away from the second fan 400. The second fan 400 is used to draw in the gas flowing out of the air outlet 120.

[0028] In this embodiment, during operation, the laser module 200 of the laser processing equipment 10 emits laser light that acts on the workpiece to perform engraving, cutting, and other processing operations. During processing, the laser module 200 generates smoke. If this smoke is not promptly removed, it will absorb laser energy, reducing processing efficiency and quality. In this application, during processing, the airflow generated by the first fan 300 continuously flows downwards from the exhaust port 120, and the airflow is directed towards the processing area or towards the side of the processing area away from the second fan 400. The second fan 400, in conjunction with the exhaust port 120, draws in the gas flowing out of the exhaust port 120, causing the downward airflow from the exhaust port 120 to be drawn into a lateral flow by the negative pressure generated by the second fan 400. This guides the airflow through the processing area and towards the exhaust port 141 of the second fan 400, effectively and continuously removing the smoke from the processing area and discharging it from the exhaust port 141 on the frame assembly 140 to the outside of the laser processing equipment 10.

[0029] In related technologies, because the air outlet is close to the second fan, the airflow from the outlet is directed towards the processing area on the side closest to the second fan. Therefore, most of the airflow is directly drawn away by the second fan without passing through the processing area, and the small amount of airflow that enters the processing area is difficult to expel effectively, easily causing airflow stagnation and eddies. In contrast, this application, through a reasonable layout of the air outlet 120, directs the airflow towards the processing area or towards the side of the processing area away from the second fan. The second fan 400 then continuously draws in the smoke-laden airflow, ensuring a continuous and stable airflow through the processing area. This results in smooth airflow without stagnation or cavities, preventing the airflow from carrying smoke and stagnating in cavities or forming eddies. This prevents smoke accumulation in the processing area, allowing the laser to act more precisely on the workpiece surface, reducing engraving errors caused by smoke interference, and effectively improving the accuracy of engraving and other processing operations.

[0030] For example, in some embodiments, the frame assembly 140 may include components such as a protective cover 150 and a handle. During laser processing, the protective cover 150 can block some potential hazards, such as preventing the laser from passing through and causing injury to the user. The handle makes it easier for the user to hold the laser processing equipment 10.

[0031] In some embodiments, the rack assembly 140 may include a rack 142 and a protective shield 150, the protective shield 150 being movably mounted to the rack 142 to open or close the processing space. In some embodiments, the protective shield 150 may be raised or lowered relative to the rack 142. In some embodiments, the protective shield 150 may be tilted relative to the rack 142. The protective shield 150 may reduce or prevent the passage of laser light emitted from the laser module 200.

[0032] The second fan 400 is mounted on the frame 142 or the protective cover 150. The bracket 110 and the base plate 130 are connected to the frame 142. The protective cover 150 and the frame 142 can form a receiving space, the processing space is located within the receiving space, and the bracket 110 and the laser module 200 are located within the receiving space.

[0033] It should be noted that the position of the air outlet 120 can be set according to design requirements, so that the airflow output from the air outlet 120 is sufficient to act on the processing area, and can fully engulf the smoke in the processing area before being sucked by the second fan 400, instead of most of it being directly sucked by the negative pressure of the second fan 400.

[0034] In some embodiments, the bracket 110 may include a main housing 115 and a lower side plate 113. The main housing 115 forms a receiving space, in which the laser module 200 is installed. The lower side plate 113 is installed at the bottom of the main housing 115 and can also support the laser module 200.

[0035] In some embodiments, the rack assembly 140 is disposed on one side of the bracket 110; the air outlet 120 includes a first air outlet 121, which is disposed on the side of the bracket 110 away from the rack assembly 140.

[0036] In this embodiment, a first air outlet 121 can be provided on the side of the bracket 110 away from the frame assembly 140, so that the first air outlet 121 and the second fan 400 are spaced far apart. When the first fan 300 is running, the airflow generated is delivered downward from the first air outlet 121 away from the frame assembly 140, forming a strong downward airflow that can quickly disperse the smoke and heat generated during processing from top to bottom, preventing smoke from accumulating above the processing area and affecting the operation of the laser module 200. Because the distance between the first air outlet 121 and the second fan 400 is large, the downward airflow will not be directly drawn away by the negative pressure of the second fan 400 due to being too close to the frame assembly 140. The downward airflow is attracted by the negative pressure of the second fan 400 and turns into a lateral flow. After passing through the processing area between the laser module 200 and the workpiece, it has sufficient time to carry away the smoke and finally continuously and stably discharge it along the direction of the smoke exhaust port 141 of the frame assembly 140, thereby improving the smoke exhaust effect. Throughout the process, the airflow continuously output by the first fan 300 flows smoothly and continuously in the processing area, without any stagnation or cavity space conditions, thus avoiding airflow stagnation in cavities or the formation of eddies.

[0037] For example, the frame assembly 140 is located on the right side of the bracket 110, and the first air outlet 121 is located on the left side of the bracket 110 facing the base plate 130. When the first fan 300 operates, the resulting downward airflow can be directly blown towards the left side of the workpiece surface. The second fan 400, installed on the right frame assembly 140, establishes a continuous low-pressure environment on the right side of the processing area through lateral negative pressure suction. This causes the downward-flowing airflow to naturally migrate to the right side where the pressure is lower, flowing laterally over the workpiece and then exiting from the exhaust port 141 on the right. Therefore, the downward airflow from the first air outlet 121 can disperse the smoke above and migrate laterally along the pressure gradient direction (left side → right side), resulting in a continuous airflow direction. Moreover, during the processing of the laser module 200, the first fan 300 continuously injects new airflow into the left area, ensuring that the left cavity is always occupied by new airflow, while the downward-moving airflow is drawn away by the second fan 400 on the right, resulting in smooth airflow.

[0038] It should be noted that the number of first air outlets 121 can be set as needed. For example, three, four, or five first air outlets 121 can be evenly arranged on the side of the bracket 110 away from the frame assembly 140. In this layout, multiple continuous downward airflows can more quickly and comprehensively disperse the smoke around the laser module 200 downwards, preventing smoke from accumulating around the laser module 200. Multiple downward airflows can also flow to the top and surface of the workpiece to be processed over a wider area, achieving full coverage of the processing area and carrying away smoke within the processing area over a wider area, so that the smoke in the processing area can be discharged more promptly. Moreover, multiple evenly arranged first air outlets 121 can make the airflow distribution within the housing 100 more uniform, avoiding the problem of excessively strong or weak local airflow, thereby making the airflow within the housing more stable and uniform, which helps to stabilize the processing environment and reduce smoke retention or eddy phenomena caused by uneven airflow.

[0039] In some embodiments, the air outlet 120 includes a second air outlet 122, the bracket 110 includes a lower side plate 113 opposite to the base plate 130, and the second air outlet 122 is disposed on the lower side plate 113; the bracket 110 has a receiving space, the laser module 200 is disposed in the receiving space, and the bracket 110 also includes a guide 500, which is disposed on the second air outlet 122 and is used to guide the airflow flowing out of the second air outlet 122 to flow away from the second fan 400.

[0040] In this embodiment, a second air outlet 122 may be provided only on the side of the lower plate 113 of the bracket 110 near the frame assembly 140. However, a guide 500 will be added to the second air outlet 122 to regulate the airflow direction of the second air outlet 122, guiding the airflow from the second air outlet 122 to flow away from the second fan 400. That is, the airflow from the second air outlet 122 can be regulated to deviate from the frame assembly 140 and flow towards the processing area. As a result, the airflow from the second air outlet 122 can better entrain the smoke in the processing area and act more effectively on the processing area, instead of being mostly drawn away by the negative pressure of the second fan 400 due to being too close to the frame assembly 140, thus improving the smoke extraction effect. Moreover, the airflow regulated by the guide 500 has a distance from the frame assembly 140, and the airflow diffuses more evenly in the cavity, which can continuously and effectively cover the entire processing area, suppressing the generation of eddies in the processing area and preventing smoke from lingering in the processing area.

[0041] Understandably, if the second air outlet 122 is only provided on the side of the bracket 110 near the rack assembly 140, for example, the rack assembly 140 is located on the right side of the bracket 110 and the second air outlet 122 is also located on the right side of the lower side plate 113 of the bracket 110, but no guide 500 is provided at the second air outlet 122, then after the airflow from the second air outlet 122 is output downwards, because the second air outlet 122 is close to the second fan 400, most of the airflow is quickly drawn away by the negative pressure generated by the second fan 400 located on the same side, and there is not enough airflow to diffuse into the processing area to carry away smoke, so the smoke exhaust effect is poor. Moreover, the second air outlet 122 on the right outputs airflow, but there is no airflow input in the left cavity area. On the one hand, the airflow on the right will diffuse to the left, and on the other hand, the airflow on the left will also flow to the low-pressure area on the right. When the two airflows in opposite directions meet, they will form a rotating vortex at the intersection, that is, near the processing area. The smoke trapped on the left will keep spinning with the vortex, forming a eddy. It cannot be sucked away by the second fan 400 on the right, and there is no new airflow to push it out of the cavity. This causes the stagnant smoke to affect the efficiency and quality of carving and cutting.

[0042] In some embodiments, not only is a first air outlet 121 provided on the side of the lower side plate 113 of the bracket 110 away from the rack assembly 140, but a second air outlet 122 is also provided on the side of the lower side plate 113 of the bracket 110 close to the rack assembly 140. The airflow from the two air outlets can work together to generate a downward airflow, which can more effectively blow away the smoke and heat from above.

[0043] For example, when the first air outlet 121 is provided, the second air outlet 122 may or may not be provided with a guide member 500. When the guide member 500 is not provided, the second air outlet 122 can carry away the smoke near the area above the rack assembly 140 through airflow output, eliminating any possible smoke exhaust blind spots. The airflow diffused by the second air outlet 122 will eventually follow the continuous lateral airflow formed by the first air outlet 121 and the second fan 400, flowing together along the direction of the smoke exhaust port 141 and being discharged outside the housing 100.

[0044] When the second air outlet 122 is equipped with a guide 500, the airflow from both the first and second air outlets 121 and the second fan 400 is a certain distance away. Therefore, the airflow from the first and second air outlets 121 and 122 will not be drawn away directly due to being too close to the second fan 400. This allows the airflow to fully envelop the smoke from the processing area from different directions, acting more effectively on the processing area and improving the smoke extraction effect. Moreover, under the negative pressure of the second fan 400, the airflow from the first and second air outlets 121 and 122 can form a continuous horizontally migrating airflow, flowing orderly along the direction of the smoke exhaust port 141, and then being drawn away by the negative pressure of the smoke exhaust port 141. This avoids the conflict between the vertically downward airflow from the second air outlet 122 and the horizontally migrating airflow near the frame assembly 140 when there is no guide 500, ensuring the orderliness and smoothness of the airflow in the cavity and avoiding the risk of eddy formation and smoke retention.

[0045] In some embodiments, the air guide 500 is obliquely disposed at the second air outlet 122 and extends in a direction away from the second fan 400. The air guide 500 includes a first end away from the rack assembly 140 and a second end close to the rack assembly 140. The first end is connected to the lower side plate, and the distance between the first end and the bottom plate is less than the distance between the second end and the bottom plate.

[0046] The air guide 500 is inclinedly disposed at the outlet 122 and directs the airflow away from the second fan 400, thereby blowing the airflow from the outlet 122 toward the upper part of the processing area. Then, due to the negative pressure formed by the second fan 400, the airflow flows downward toward the second fan 400, thereby carrying away the smoke through the processing area.

[0047] In some embodiments, the air guide 500 is provided with an air inlet 510, an air outlet 520 and an air duct 530. The side of the air guide 500 away from the bottom plate is provided with an air inlet 510 that communicates with the second air outlet. The end of the air guide 500 away from the frame assembly 140 is provided with an air outlet 520. The end of the air guide 500 away from the frame assembly 140 extends beyond the lower side plate. The air duct 530 connects the air inlet 510 and the air outlet 520. The air duct 530 is inclined relative to the bottom plate and extends along the direction from the air inlet 510 to the air outlet 520. The air duct 530 extends in a direction away from the second fan 400.

[0048] In this embodiment, when the first fan 300 is started, the airflow inside the bracket enters through the air inlet 510 of the guide member 500, and after being guided by the air duct 530, it is finally ejected from the exhaust port 520 away from the frame assembly 140. The air duct 530 of the guide member 500 extends from the frame assembly 140 towards the bracket 110, while also tilting towards the base plate 130, creating an inclined flow path within the guide member 500. After entering the guide member 500 through the air inlet 510, the airflow flows along the inclined air duct 530 and is finally ejected from the exhaust port 520. This allows the ejected airflow to flow away from the second fan 400, thus enabling the airflow to act more effectively on the processing area.

[0049] In some embodiments, the exhaust vent 520 extends obliquely in a direction away from the rack assembly 140.

[0050] In this embodiment, the exhaust vent 520 extends obliquely away from the frame assembly 140, allowing the airflow to be blown obliquely from the side towards the top and surface of the workpiece. The lateral airflow can flow closer to the surface of the workpiece over a larger area, thereby more effectively entraining smoke from the processing area and improving the smoke exhaust effect. Moreover, the guide 500 changes the vertical downward path of the airflow output from the second exhaust vent 122, avoiding conflict between the vertically downward airflow and the laterally migrating airflow, and more effectively ensuring the orderliness and smoothness of the airflow within the housing 100.

[0051] For example, the exhaust vent 520 may be directed toward the base plate 130 and angled away from the rack assembly 140. This allows for more direct airflow from the bracket 110 toward the workpiece on the base plate 130.

[0052] In some embodiments, the top 111 of the bracket 110 away from the base plate 130 is provided with an air inlet 112, the air inlet 112 is connected to the receiving space of the bracket 110, and the first fan 300 is installed in the air inlet 112.

[0053] In this embodiment, the accommodating space inside the bracket 110 is used to accommodate components such as the laser module 200 and the first fan 300. The top 111 of the bracket 110, which is away from the base plate 130, is provided with an air inlet 112. The air inlet 112 is connected to the accommodating space. The first fan 300 is installed at the air inlet 112. External air is efficiently introduced into the accommodating space to provide necessary heat dissipation for internal components such as the laser module 200. At the same time, it helps to smoothly exhaust the smoke generated during the engraving process, ensuring the stable operation and processing quality of the laser processing equipment 10.

[0054] In some embodiments, the bracket 110 includes a lower side plate 113 facing the base plate 130, the lower side plate 113 having an opening 114 corresponding to the laser module 200, and along the thickness direction of the rack assembly 140, a first air outlet 121 is at least partially located on the side of the opening 114 away from the rack assembly 140.

[0055] like Figure 2 As shown, the thickness direction of the rack assembly 140 is the x-direction. When the first air outlet 121 is located on the side of the opening 114 away from the rack assembly 140, the airflow is output from the side of the opening 114 away from the rack assembly 140, ensuring that the airflow direction completely covers the entire processing area or covers most of the processing area before reaching the exhaust port 141. Thus, the airflow output from the first air outlet 121 can push the smoke from the entire processing area or most of the processing area towards the exhaust port, and the processing area will not form a vortex.

[0056] In some embodiments, at least one of the two sides of the opening 114 is provided with a first air outlet 121 along the width direction of the rack assembly 140.

[0057] like Figure 2 As shown, the width direction of the rack assembly 140 is the y-direction. The first air outlet 121 can be distributed on one or both sides of the opening 114 along the width direction of the rack assembly 140. The number of first air outlets 121 located on one or both sides can be set as needed to achieve a more uniform and effective smoke exhaust effect. The first air outlet 121 is located on the side of the opening 114, and the airflow can quickly reach the processing area. It can effectively engulf the smoke in the processing area and then discharge it to the smoke exhaust port, preventing the smoke from accumulating in the processing area and affecting the operation of the laser module 200.

[0058] For example, a first air outlet 121 is provided on both sides of the opening 114. For instance, two first air outlets 121 are provided on each side. The airflow on both sides can act on the processing area at the same time, and work together to expand the coverage of the smoke exhaust. This effectively avoids the problem that the smoke may spread to the other side when exhausting smoke on one side, and ensures that the smoke in the processing area is fully wrapped and guided to the smoke exhaust outlet.

[0059] In another example, the first air outlet 121 is not only located on the side of the opening 114 away from the rack assembly, but can also be located on both sides of the opening 114. Thus, the airflow can be output to the processing area from multiple directions, such as the front and sides of the opening 114, and after entraining the smoke from the processing area, it is discharged along the direction of the exhaust port 141 of the rack assembly 140.

[0060] In another example, not only are there one or more first air outlets 121 in front of and on both sides of the opening 114, but a second air outlet 122 equipped with a guide is also provided behind the opening 114, thus forming an airflow distribution pattern around the opening 114, which can cover the processing area more quickly and comprehensively, and can more effectively carry and discharge smoke from all directions, further improving the smoke exhaust efficiency.

[0061] Therefore, this application, by reasonably setting the position of the first air outlet 121 and / or by setting the guide component 500 to adjust the direction of the airflow output from the second air outlet 122, ensures that the airflow output from the first air outlet 121 and / or the second air outlet 122 will not be directly drawn away by the negative pressure of the second fan 400 due to being too close to the frame assembly 140. This ensures sufficient airflow reaches the processing area, carrying away smoke, and ultimately, it is continuously and stably discharged along the direction of the exhaust port 141 of the frame assembly 140. Throughout the smoke exhaust process, the first air outlet 121 and / or the second air outlet 122 continuously output airflow. The airflow direction through the processing area is continuous and smooth, and there are no stagnant or cavitary spaces in the processing area. This avoids airflow stagnation in cavities or the formation of eddies, enabling timely and effective smoke discharge and ensuring the quality and efficiency of the laser processing equipment 10 for engraving and cutting.

[0062] In some embodiments, the laser processing equipment 10 further includes a heat sink 18 connected to the laser module, and a first fan 300 disposed on one side of the heat sink 18. The airflow generated by the first fan 300 flows through the heat sink 18 and out through the air outlet 120.

[0063] The heat sink 18 dissipates heat from the laser module 200, quickly carrying away its heat. The airflow generated by the first fan 300 flows through the heat sink 18 and exits through the air outlet 120, thus cooling both the laser module 200 and the heat sink 18. It is understood that the airflow generated by the first fan 300 can also flow through the laser module 200 and exit through the air outlet 120.

[0064] In some embodiments, the first fan 300 is at least partially opposite to the heat sink 18, and the airflow generated by the first fan 300 can pass through the heat sink 18 more quickly, thereby better dissipating heat from the heat sink 18.

[0065] In some embodiments, the heat sink 18 is at least partially opposite to the air outlet 120, and the airflow passing through the heat sink 18 can pass through the air outlet 120 more quickly, thereby better dissipating heat from the heat sink 18.

[0066] In some embodiments, the first fan 300 is at least partially opposite to the heat sink 18, and the heat sink 18 is at least partially opposite to the air outlet 120.

[0067] The airflow generated by the first fan 300 can pass through the heat sink 18 more quickly, and the airflow passing through the heat sink 18 can pass through the air outlet 120 more quickly, thereby better dissipating heat from the heat sink 18.

[0068] In some examples, the heat sink 18 is located within the bracket 110 and on the side close to the rack assembly 140. The first fan 300 is at least partially disposed opposite to the heat sink 18, and the second air outlet 120 is located on the side of the heat sink 18 away from the first fan 300. The airflow generated by the first fan 300 can pass through the heat sink 18 more quickly and flow out from the second air outlet 122, thereby dissipating heat from the heat sink 18.

[0069] Understandably, part of the airflow generated by the first fan 300 flows out from the first air outlet 121 within the bracket 110. This airflow passes through other sides of the laser module 200 that are not thermally connected to the heat sink 18, thereby better dissipating heat from the laser module 200.

[0070] In some examples, a guide 500 is provided in the second air outlet 122. The first fan 300 is mounted above the guide 500 along the direction of gravity. The heat sink 18 is disposed between the first fan 300 and the guide 500 in the second air outlet 122, so that the downward airflow generated by the fan can quickly pass through the heat sink 16 and flow out from the second air outlet 122. In the second air outlet 122, the air is guided by the guide 500 and discharged from the direction away from the rack assembly 140.

[0071] In some embodiments, such as Figure 6 As shown, the laser head 200 includes a laser 210 and a galvanometer assembly 220. The laser 210 is used to emit a laser beam, and the galvanometer assembly 220 is used to deflect the laser beam.

[0072] There are one or more lasers 210. In some embodiments, there are multiple lasers 210 with different wavelengths, and the multiple lasers 210 can be combined by optical devices and reach the galvanometer assembly 220.

[0073] In some embodiments, the galvanometer assembly 220 may include an X-axis galvanometer and a Y-axis galvanometer, which cooperate to move the light spot projected onto the workpiece along the X and Y directions.

[0074] In some embodiments, there are two lasers 210, and the laser module 200 further includes a beam combiner 230. The beam combiner 230 may include optical devices such as reflectors that change the optical path and / or beam combiners that merge the optical paths, as well as a mounting base for mounting the optical devices. Along the output optical path of the lasers 210, these optical devices are disposed between the laser 21 and the galvanometer assembly 22 to merge the output optical paths of the laser beams emitted by the two lasers 210, so that they reach the galvanometer assembly 210 along the same optical path. The mounting base may be mounted on the bracket 110 or the heat sink 18.

[0075] In some embodiments, the laser processing equipment may further include a motherboard assembly 19, which is connected to the laser 210. The motherboard assembly 19 may include a motherboard and electronic components and corresponding drive circuits, control circuits, etc., disposed on the motherboard. The motherboard assembly 19 may be mounted on a bracket 110 or a heat sink 18.

[0076] In the above embodiments, the descriptions of each embodiment have their own emphasis. Parts not described in detail in a particular embodiment can be referred to in the relevant descriptions of other embodiments. The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0077] The laser processing equipment 10 provided in the embodiments of this application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A laser processing device, characterized in that, include: Rack components; A base plate, connected to the frame assembly, is used to support the workpiece; A bracket is connected to the frame assembly and spaced apart from the base plate. An air outlet is provided on the side of the bracket opposite to the base plate. A laser module is connected to the bracket and is opposite to the base plate. The laser module is capable of processing workpieces within the processing area of ​​the base plate. A first fan is mounted on the bracket; A second fan is provided on the rack assembly; The first fan is used to generate airflow, which flows out through the air outlet. The airflow flowing out of the air outlet is directed toward the processing area or toward the side of the processing area away from the second fan. The second fan is used to draw in the gas flowing out of the air outlet.

2. The laser processing equipment according to claim 1, characterized in that, The rack assembly is disposed on one side of the bracket; The air outlet includes a first air outlet, which is located on the side of the bracket away from the frame assembly.

3. The laser processing equipment according to claim 2, characterized in that, The bracket includes a lower side plate facing the base plate, and the lower side plate has an opening corresponding to the laser module; At least a portion of the first air outlet is located on the side of the opening away from the second fan.

4. The laser processing equipment according to claim 3, characterized in that, Along the width direction of the rack assembly, at least one of the two sides of the opening is provided with the first air outlet.

5. The laser processing equipment according to claim 1, characterized in that, The air outlet includes a second air outlet, and the bracket includes a lower side plate opposite to the base plate, with the second air outlet disposed on the lower side plate; The bracket has a receiving space, and the laser module is disposed in the receiving space. The bracket also includes a flow guide, which is disposed at the second air outlet and is used to guide the airflow from the second air outlet to flow away from the second fan.

6. The laser processing equipment according to claim 5, characterized in that, The air guide is inclinedly disposed at the second air outlet and extends in a direction away from the second fan. The air guide includes a first end away from the rack assembly and a second end close to the rack assembly. The first end is connected to the lower side plate, and the distance between the first end and the bottom plate is less than the distance between the second end and the bottom plate.

7. The laser processing equipment according to claim 5, characterized in that, The air guide is provided with an air inlet, an air outlet, and an air duct. The air guide has an air inlet on the side away from the bottom plate that communicates with the second air outlet. The air guide has an air outlet at the end away from the frame assembly. The end of the air guide that is away from the frame assembly extends beyond the lower side plate. The air duct connects the air inlet and the air outlet. The air duct is inclined relative to the bottom plate and extends along the direction from the air inlet to the air outlet. The air duct extends in a direction away from the second fan.

8. The laser processing equipment according to claim 5, characterized in that, An air inlet is provided on the top of the bracket away from the base plate, the air inlet is connected to the receiving space, and the first fan is installed in the air inlet.

9. The laser processing equipment according to any one of claims 1 to 8, characterized in that, The laser processing equipment also includes a heat sink, which is connected to the laser module. The first fan is located on one side of the heat sink, and the airflow generated by the first fan flows through the heat sink and out from the air outlet. The first fan is disposed at least partially opposite to the heat sink; and / or, The heat sink is at least partially opposite to the air outlet.

10. The laser processing equipment according to any one of claims 1 to 8, characterized in that, The laser module includes a laser and a galvanometer assembly. The laser emits a laser beam, and the galvanometer assembly deflects the laser beam. The galvanometer assembly is mounted on the support. And / or... The rack assembly includes a rack and a protective cover, the protective cover being movably mounted on the rack, the protective cover and the rack forming a receiving space, the base plate and the bracket being connected to the rack, and the bracket and the laser module being located within the receiving space.

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