Laser and laser device

Abstract

The utility model provides a laser and a laser device, the laser comprises a laser generator, a channel structure and a focus lens module, an optical channel is formed in the channel structure, the focus lens module is arranged in the optical channel, the side wall of the channel structure is provided with an airflow inlet communicated with the optical channel, and the airflow inlet is located at the light emitting side of the focus lens module. According to the technical scheme, the influence of impurities such as dust on laser emission and laser processing can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of laser equipment, and particularly relates to a laser and laser equipment. Background Art

[0002] Laser equipment that uses laser as a medium to achieve purposes such as processing or ranging is becoming increasingly popular. Laser equipment such as laser engraving machines and laser marking machines can be used for laser processing. In the environment of laser processing, there are usually a large amount of oil stains and dust. If dust adheres to the optical lens at the light exit of the laser module, it is likely to affect the emission of laser; if dust and the like adhere to the position to be processed, it will also affect the laser processing process or ranging accuracy. Content of the Utility Model

[0003] The main purpose of the utility model is to provide a laser and laser equipment, aiming to reduce the influence of dust and other impurities on laser emission and laser processing.

[0004] To achieve the above object, a laser proposed by the utility model includes a laser generator, a channel structure and a focusing lens module. A light channel is formed in the channel structure, and the focusing lens module is arranged in the light channel. An air flow inlet communicating with the light channel is formed on the side wall of the channel structure, and the air flow inlet is located on the light exit side of the focusing lens module.

[0005] In an embodiment of the present application, the channel structure and the light channel both extend in the same direction, and the air flow inlet is closer to the exit of the light channel.

[0006] In an embodiment of the present application, the laser further includes an air pipe joint, and the air pipe joint is inserted into the air flow inlet.

[0007] In an embodiment of the present application, the laser further includes an air pipe joint and an adapter. The adapter is arranged on the outer wall of the channel structure where the air flow inlet is formed. The adapter is provided with a connection hole opposite to the air flow inlet, and the air pipe joint is inserted into the connection hole.

[0008] In an embodiment of the present application, the laser further includes a light exit head, which is arranged at the exit of the light channel and one end is inserted into the light channel. The light exit head is provided with a through hole communicating with the light channel;

[0009] Wherein, the side wall of the light exit head is arranged opposite to the air flow inlet, and an air inlet communicating with the air flow inlet and the through hole is formed.

[0010] In an embodiment of the present application, the laser further includes an output optical head. One end of the output optical head is inserted into the optical channel, and the output optical head is provided with a through hole communicating with the optical channel. The air flow inlet is located between the focusing lens module and the output optical head, and the air flow inlet communicates with the through hole through the optical channel.

[0011] In an embodiment of the present application, the output optical head includes a plugging portion and a limiting portion. The plugging portion is inserted into the optical channel, the limiting portion is located outside the optical channel and abuts against the end face of the channel structure, and the through hole penetrates through the plugging portion and the limiting portion. When the side wall of the output optical head is disposed opposite to the air flow inlet and is provided with the air inlet, an air groove is formed between the plugging portion and the channel wall of the optical channel. The air groove at least partially surrounds the through hole in the circumferential direction, and the air groove communicates with the air inlet and the air flow inlet.

[0012] In an embodiment of the present application, the air groove includes a groove recessed from the outer side wall of the output optical head. The groove surrounds at least a part of the through hole in the circumferential direction, and a part of the groove is disposed opposite to the air flow inlet, and the air inlet penetrates through the groove.

[0013] And / or, at least two air inlets are formed in the side wall of the output optical head, and the air inlets are spaced apart in the circumferential direction of the through hole.

[0014] In an embodiment of the present application, the laser further includes a window lens module. The window lens module is disposed in the optical channel and is located on the light output side of the focusing lens module, and the air flow inlet is located on a side of the window lens module away from the focusing lens module.

[0015] In an embodiment of the present application, the window lens module includes a window lens barrel and a window lens disposed in the window lens barrel. The window lens barrel is disposed in the optical channel.

[0016] And / or, the laser further includes an output optical head, and one end of the output optical head is inserted into the optical channel.

[0017] Wherein, the output optical head abuts against one end of the window lens module away from the focusing lens module; and / or, an installation groove is recessed from an end face of the output optical head facing the window lens module, and the window lens module is disposed in the installation groove.

[0018] In an embodiment of the present application, the laser further includes an air pipe joint, and the air pipe joint is disposed at the air flow inlet.

[0019] In an embodiment of the present application, the laser further includes an adapter. The adapter is disposed on the outer wall of the channel structure where the air inlet is provided. The adapter is provided with a connection hole opposite to the air inlet, and the air pipe joint is inserted into the connection hole.

[0020] In an embodiment of the present application, the laser further includes a housing. A receiving cavity is formed in the housing, and the bottom of the receiving cavity has an opening; the laser generator and part of the channel structure are disposed in the receiving cavity, and the channel structure penetrates through the bottom opening of the receiving cavity.

[0021] In an embodiment of the present application, the housing is provided with an air inlet interface. The laser further includes an air guide pipe. At least part of the air guide pipe is disposed in the receiving cavity. One end of the air guide pipe is communicated with the air inlet interface, and the other end of the air guide pipe is communicated with the air inlet.

[0022] In an embodiment of the present application, the channel structure is vertically movable and disposed in the housing.

[0023] The present application also provides a laser device, which includes the laser as described in any one of the foregoing embodiments.

[0024] The technical solution of the present utility model is to provide a focusing lens module in the optical channel of the laser, and an air inlet is provided on the side wall of the optical channel. The air inlet is located on the light-emitting side of the focusing lens module; when the laser is applied to a laser device, the air inlet is communicated with a gas supply mechanism, and the gas supply mechanism can drive air to flow into the optical channel through the air inlet. Since the upper part of the optical channel is blocked by optical lens structures such as the focusing lens module, the air can only flow out of the optical channel from the outlet; thus, the air can be used to blow away impurities such as dust and oil stains in front of the light-emitting port, preventing dust and other impurities from entering the optical channel and adhering to the optical lenses, and avoiding affecting the laser emission; at the same time, the dust and other impurities at the processing position facing the channel structure can also be blown away, avoiding affecting laser processing or ranging. That is to say, the technical solution of the present application can reduce the influence of impurities such as dust and oil stains on laser emission, laser processing or ranging. Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0026] Figure 1 It is a structural diagram of an embodiment of the laser of the present application;

[0027] Figure 2 It is a cross-sectional view of an embodiment of the laser module in the present application;

[0028] Figure 3 It is Figure 2 an enlarged view of part A in

[0029] Figure 4 It is Figure 2 a partial exploded view of the laser module in

[0030] Figure 5 It is Figure 4 a structural diagram of the optical head in

[0031] Figure 6 It is an exploded view of the focusing lens module in the laser of the present application.

[0032] Explanation of the reference numerals in the drawings:

[0033]

[0034]

[0035] The realization, functional characteristics and advantages of the purpose of the present utility model will be further described in conjunction with the embodiments with reference to the accompanying drawings. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

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

[0038] In the present utility model, unless otherwise clearly defined and limited, the terms "connection", "fixation", etc. shall be understood in a broad sense. For example, "fixation" may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0039] In addition, in the present utility model, descriptions such as "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0040] The present utility model provides a laser 100.

[0041] Please refer to Figures 1 to 3 , in some embodiments of the present application, the laser 100 includes a laser generator 21, a channel structure 22 and a focusing lens module 24. An optical channel 221 is formed in the channel structure 22. The end of the optical channel 221 has a light outlet 234. A focusing lens module 24 is provided in the optical channel 221. An air flow inlet 222 is formed in the side wall of the channel structure 22 between the focusing lens module 24 and the light outlet 234. The air flow inlet 222 is communicated with the light outlet 234 through the optical channel 221.

[0042] The laser 100 proposed in the present application can be applied to laser devices, such as laser engraving machines, laser marking machines, and laser cutting machines and other laser processing devices, or devices that use lasers for ranging. The laser 100 includes a laser module 20 mainly composed of a laser generator 21, a channel structure 22 and a focusing lens module 24. The laser generator 21 is used to generate laser light. The focusing lens module 24 is provided in the optical channel 221 of the channel structure 22. The channel structure 22 can provide support for the focusing lens module 24. The laser light generated by the laser 100 can be propagated through the optical channel 221 and emitted outward from the end outlet of the optical channel 221. The focusing lens module 24 can be a single focusing lens 241, or can be formed by combining a focusing lens barrel 242, a focusing lens 241 and other structures in the following embodiments. Among them, the focusing lens 241 can focus the laser light, can reduce the size of the laser spot formed at the processing position, and improve the energy density of the laser spot.

[0043] In the embodiments of the present application, an air inlet 222 is provided on the side wall of the channel structure 22. The air inlet 222 is communicated with the optical channel 221 on the light-emitting side of the focusing lens module 24. The air inlet 222 can be used to connect to a gas supply mechanism such as an air pump. With such a setting, when the laser 100 is applied to a laser device, a gas supply mechanism such as an air pump can be connected to the air inlet 222, and the gas supply mechanism can drive the air to flow into the optical channel 221 through the air inlet 222. Since the upper part of the optical channel 221 is blocked by the focusing lens module 24, the air can only flow outwards from the light-emitting port 234. Then, the air can be used to blow away impurities such as dust and oil stains in front of the light-emitting port 234, preventing dust and other impurities from entering the optical channel 221 and adhering to the optical lenses, thus avoiding affecting the laser emission. At the same time, the dust and other impurities on the processing position facing the light-emitting port 234 can also be blown away, avoiding affecting laser processing or ranging.

[0044] It should be noted that in some embodiments, a window mirror 252 is also provided in the laser 100, which is disposed between the focusing lens module 24 and the light-emitting port 234, for blocking dust and other sundries from entering the optical channel 221 and adhering to the focusing lens 241, and the air inlet 222 is located on the light-emitting side of the window mirror 252 to prevent affecting the outward blowing of the air flow.

[0045] Therefore, it can be understood that in the technical solution of the present application, a focusing lens module 24 is provided in the optical channel 221 of the laser 100, and an air inlet 222 is provided on the side wall of the optical channel 221. The air inlet 222 is located on the light-emitting side of the focusing lens module 24. When the laser 100 is applied to a laser device, the air inlet 222 is communicated with the gas supply mechanism, and the gas supply mechanism can drive the air to flow into the optical channel 221 through the air inlet 222. Since the upper part of the optical channel 221 is blocked by optical lens structures such as the focusing lens module 24, the air can only flow outwards from the outlet of the optical channel 221. Then, the air can be used to blow away impurities such as dust and oil stains in front of the light-emitting port 234, preventing dust and other impurities from entering the optical channel 221 and adhering to the optical lenses, thus avoiding affecting the laser emission. At the same time, the dust and other impurities on the side of the processing position facing the channel structure 22 can also be blown away, avoiding affecting laser processing or ranging. That is to say, the technical solution of the present application can reduce the influence of impurities such as dust and oil stains on laser emission, laser processing or ranging.

[0046] Please refer to Figure 2 and Figure 4 , in some embodiments of the present application, the channel structure 22 and the optical channel 221 both extend in the same direction, and the air inlet 222 is closer to the outlet of the optical channel 221.

[0047] In this embodiment, the channel structure 22 may be a hollow tubular structure, and the optical channel 221 is a hollow hole. For example, both the channel structure 22 and the optical channel 221 may extend in the up and down directions. The air inlet 222 is closer to the outlet of the optical channel 221, so that the air flow can directly flow out from the outlet of the optical channel 221 and directly blow towards the workpiece, rather than blowing towards the side where the focusing lens module 24 is located.

[0048] Please refer to Figure 3 and Figure 4 , in some embodiments of the present application, the laser 100 further includes a light emitting head 23. One end of the light emitting head 23 is inserted into the optical channel 221, and the light emitting head 23 is provided with a through hole 233 communicating with the optical channel 221.

[0049] In this embodiment, the light emitting head 23 is provided in the laser 100. The light emitting head 23 is inserted into the optical channel 221 from the end opening of the optical channel 221, and the light emitting head 23 is provided with a through hole 233 that penetrates along the extension direction of the optical channel 221. One end opening of the through hole 233 away from the focusing lens module 24 forms a light outlet 234, so that the laser generated by the laser 100 can be emitted outward through the optical channel 221 and the through hole 233. In this embodiment, since the light emitting head 23 is inserted into the optical channel 221, obviously the cross-sectional dimension of the through hole 233 is smaller than the cross-sectional dimension of the optical channel 221, that is, the flow channel of the air flow is narrowed by the setting of the light emitting head 23, and the flow rate and impact force of the air flow when flowing out from the light outlet 234 can be increased, improving the dust removal effect. Among them, the way of fixing the light emitting head 23 to the optical channel 221 may be that the light emitting head 23 is in interference fit with the optical channel 221, or the light emitting head 23 is threadedly connected to the optical channel 221, or other ways such as clamping and bonding are adopted, which are not limited herein.

[0050] In some embodiments, the air inlet is located between the focusing lens module 24 and the light emitting head 23, and the air inlet 222 is communicated with the through hole 233 through the optical channel 221.

[0051] In this embodiment, the length of the part of the light emitting head 23 inserted into the optical channel 221 does not exceed the distance from the air inlet 222 to the end opening of the optical channel 221, that is, the side wall of the light emitting head 23 is not disposed opposite to the air inlet 222. The air inlet 222 is located on the side wall of the part of the channel structure 22 between the light emitting head 23 and the focusing lens module 24. The light emitting head 23 does not block the air inlet 222, so that the light inlet of the through hole 233 is communicated with the air inlet 222 through the optical channel 221. At this time, the air flow enters the optical channel 221 from the air inlet 222, and then flows into the through hole 233 and blows out from the light outlet 234.

[0052] In some embodiments, the side wall of the light emitting head 23 is disposed opposite to the air flow inlet 222, and an air inlet 235 communicating the air flow inlet 222 and the through hole 223 is formed thereon.

[0053] In this embodiment, the light emitting head 23 is at least inserted to the position of the air flow inlet 222, and the air inlet 235 communicating the through hole 233 is formed on the side wall of the light emitting head 23; optionally, at least a part of the air inlet 235 can be disposed opposite to the air flow inlet 222 so that the air flow inlet 222 communicates with the through hole 233; in some embodiments, a groove 236 can also be formed on the outer side wall of the light emitting head 23, and the air inlet 235 is formed on the wall of the groove 236. The arrangement of the groove 236 is to form an air guiding channel between the light emitting head 23 and the side wall of the optical channel 221, so that the air flow inlet 222 communicates with the air inlet 235 through the air guiding channel. In this way, the air flow can enter the through hole 233 from the air flow inlet 222 and then be blown out from the light emitting port 234, playing a role in dust removal. With such an arrangement, there is no need to limit the insertion depth of the light emitting head 23 into the optical channel 221 due to the air flow inlet 222, so that the light emitting head 23 can be inserted to a deeper position of the optical channel 221, improving the connection strength between the light emitting head 23 and the optical channel 221.

[0054] Please refer to Figure 3 and Figure 5 , in some embodiments of the present application, the light emitting head 23 includes a plugging portion 231 and a limiting portion 232. The plugging portion 231 is inserted into the optical channel 221, the limiting portion 232 is located outside the optical channel 221 and abuts against the end face of the channel structure 22, and the through hole 233 penetrates through the plugging portion 231 and the limiting portion 232.

[0055] In this embodiment, the light emitting head 23 includes a plugging portion 231 and a limiting portion 232 which are oppositely disposed, and the cross-sectional dimension of the limiting portion 232 is larger than that of the optical channel 221; the plugging portion 231 is inserted into the optical channel 221, and the limiting portion 232 is located outside the channel structure 22 and abuts against the end face of the channel structure 22, so as to limit the light emitting head 23 and prevent the whole light emitting head 23 from being inserted into the optical channel 221, thereby avoiding damage to the focusing lens module 24 or the window lens 252; and the user can disassemble and assemble the light emitting head 23 by holding the limiting portion 232, improving the disassembly and assembly convenience of the light emitting head 23. In some embodiments, the side wall of the plugging portion 231 inserted into the optical channel 221 is disposed opposite to the air flow inlet 222, and an air inlet 235 needs to be formed on the side wall of the plugging portion 231 to communicate the air flow inlet 222 and the through hole 233. In addition, the plugging portion 231 can also be set shorter without blocking the air flow inlet 222, so that the air flow inlet 222 is located between the plugging portion 231 and the focusing lens module 24, so that the air flow inlet 222 communicates with the through hole 233 through the optical channel 231.

[0056] In some embodiments of the present application, a seal (not shown) is clamped between the limiting portion 232 and the end face of the channel structure 22, and the seal is arranged to surround the optical channel 221 in the circumferential direction.

[0057] In this embodiment, a seal is arranged between the limiting portion 232 and the end face of the optical channel 221. The seal is arranged to surround the optical channel 221 in the circumferential direction and is used to seal the gap between the limiting portion 232 and the end face of the channel structure 22 to avoid air leakage. Among them, the seal can be sealant injected between the limiting portion 232 and the end face of the channel structure 22, or a sealing ring made of elastic material such as rubber. Using a sealing ring made of elastic material such as rubber can not only cause elastic deformation of the seal to closely adhere to the end faces of the limiting portion 232 and the channel structure 22, but also make the optical head 23 detachable.

[0058] In some embodiments, a fixing groove can be opened on either the end face of the limiting portion 232 or the channel structure 22, the seal is arranged in the fixing groove, and part of the seal protrudes from the notch of the fixing groove; with such an arrangement, the position and shape stability of the seal can be improved, the seal can be prevented from deforming or being displaced, and it is ensured that the seal plays a good sealing role.

[0059] When the side wall of the optical head 23 is arranged opposite to the air inlet 222 and is provided with an air inlet 235, there is an air groove between the plugging portion 231 and the channel wall of the optical channel 221. The air groove at least partially surrounds the through hole 233 in the circumferential direction, and the air groove communicates with the air inlet 235 and the air inlet 222, that is, the air groove partially surrounds or completely surrounds the through hole 233 in the circumferential direction.

[0060] In this embodiment, there is an air groove between the plugging portion 231 and the channel wall of the optical channel 221. It is not necessary to ensure that the air inlet 235 is opposite to the air inlet 222. That is, the optical head 23 can be inserted into the optical channel 221 in any orientation within the drafting extension range. It is only necessary to make the air groove arranged opposite to the air inlet 222, so that the installation of the optical head 23 is more convenient and flexible.

[0061] With reference to Figures 3 to 5 , in some embodiments of the present application, the air groove includes a groove 236 recessed on the outer side wall of the optical head 23. The groove 236 surrounds at least part of the through hole 233 in the circumferential direction, part of the groove 236 is arranged opposite to the air inlet 222, and the air inlet 235 communicates with the groove 236.

[0062] In this embodiment, a groove 236 is formed on the outer sidewall of the light emitting head 23, and the air inlet 235 communicates with the groove 236. When the light emitting head 23 is inserted into the optical channel 221, the groove 236 is disposed opposite to the air flow inlet 222, and an air guiding channel can be formed between the light emitting head 23 and the sidewall of the optical channel 221. The air flow inlet 222 and the air inlet 235 are connected through the air guiding channel, so that the air flow can flow along the groove 236 to the air inlet 235 and enter the through hole 233 after being introduced from the air flow inlet 222. The groove 236 is disposed generally around the circumference of the through hole 233 and may only surround a part of the circumference. With the arrangement of the groove 236, it is not necessary to ensure that the air inlet 235 is opposite to the air flow inlet 222. That is, the light emitting head 23 can be inserted into the optical channel 221 in any orientation within the extension range of the groove 236, and only the groove 236 needs to be disposed opposite to the air flow inlet 222, thereby making the installation of the light emitting head 23 more convenient and flexible.

[0063] In other embodiments, it may also be that a groove is formed by the depression of the channel wall of the optical channel 221 to form an air groove with the limiting portion 232. Alternatively, a first groove is formed by the depression of the channel wall of the optical channel 221, and a second groove is formed on the outer sidewall of the light emitting head 23, and the first groove and the second groove are opposite to each other to jointly form an air groove.

[0064] Please refer to Figures 3 to 5 , in some embodiments of the present application, at least two air inlets 235 are formed on the sidewall of the light emitting head 23, and the air inlets 235 are spaced apart along the circumference of the through hole 233.

[0065] In this embodiment, at least two air inlets 235 are formed on the sidewall of the light emitting head 23, so that when any one of the air inlets 235 is disposed opposite to the air flow inlet 222, the light emitting port 234 can be communicated with the air flow inlet 222. With such an arrangement, the installable orientations of the light emitting head 23 are increased, making the installation of the light emitting head 23 more convenient and flexible, and avoiding the problem that it is necessary to ensure the accurate opposition between the air inlet 235 and the air flow inlet 222 when only one air inlet 235 is provided.

[0066] In some embodiments, a groove 236 is formed on the outer sidewall of the light emitting head 23. At this time, at least two air inlets 235 are formed on the groove wall of the groove 236 at intervals along the circumference of the through hole 233. With such an arrangement, the air flow entering the groove 236 from the air flow inlet 222 can be dispersed into the air inlets 235 in different orientations and flow into the through hole 233, so that air flow is blown out in the entire area of the light emitting port 234, improving the dust removal effect.

[0067] Please refer to Figure 3 and Figure 4, in some embodiments of the present application, the laser 100 further includes a window mirror module 25. The window mirror module 25 is disposed in the optical channel 221 and is located on the light-emitting side of the focusing mirror module 24. The air flow inlet 222 is located on the side of the window mirror module 25 facing away from the focusing mirror module 24.

[0068] In this embodiment, a window mirror module 25 is further provided in the laser 100 on the light-emitting side of the focusing mirror module 24. The window mirror module 25 can be a single window mirror 252 or a combined structure of the window mirror 252 and the window mirror barrel 251 in the following embodiments. The window mirror 252 can be used to block dust and other sundries from passing through the optical channel 221 and adhering to the focusing mirror 241. At this time, the air flow inlet 222 is opened on the side wall of the channel structure 22 located on the light-emitting side of the window mirror module 25 to prevent the window mirror module 25 from blocking the outward flow of the air flow.

[0069] In an embodiment of the present application, the laser 100 further includes a light-emitting head 23. One end of the light-emitting head 23 is inserted into the optical channel 221, and the light-emitting head 23 abuts against the window mirror module 25. With such a setting, the light-emitting head 23 can be used to limit the position of the window mirror module 25, preventing the window mirror module 25 from moving towards the light-emitting port 234 in the optical channel 221, which can not only prevent the window mirror module 25 from falling out of the optical channel 221, but also prevent the window mirror module 25 from moving to the position of the air flow inlet 222 or blocking between the air flow inlet 222 and the light-emitting port 234, resulting in the air flow being unable to blow out from the light-emitting port 234.

[0070] It should be noted that in this embodiment, the light-emitting head 23 abuts against the window mirror module 25. At this time, the side wall of the light-emitting head 23 is disposed opposite to the air flow inlet 222, and an air inlet 235 communicating with the air flow inlet 222 needs to be opened on the side wall of the light-emitting head 23.

[0071] With reference to Figure 3 and Figure 4 , in some embodiments of the present application, an installation groove 237 is recessed on the end surface of the light-emitting head 23 facing the window mirror module 25, and the window mirror module 25 is disposed in the installation groove 237.

[0072] In this embodiment, an installation groove 237 is recessed in the end face of the light emitting head 23. The through hole 233 of the light emitting head 23 penetrates to the bottom wall of the installation groove 237, and the window mirror module 25 is arranged in the installation groove 237 so that the light emitting head 23 and the window mirror module 25 are connected to each other. Based on this structural arrangement, after the window mirror module 25 is installed in the installation groove 237 of the light emitting head 23, the light emitting head 23 can carry the window mirror module 25 and be inserted into the optical channel 221 together, or the light emitting head 23 and the window mirror module 25 can be removed from the optical channel 221 together, improving the convenience of disassembly and assembly of the light emitting head 23 and the window mirror module 25; and it can avoid the problem that the window mirror module 25 is damaged due to the over - deep insertion of the light emitting head 23 when the window mirror module 25 is first installed and then the light emitting head 23 is inserted.

[0073] It should be noted that in this embodiment, the window mirror module 25 can be bonded, snapped or pressed into the installation groove 237.

[0074] Please refer to Figure 3 and Figure 4 , in some embodiments of the present application, the window mirror module 25 includes a window mirror barrel 251 and a window mirror 252 arranged in the window mirror barrel 251. Among them, the window mirror barrel 251 is a tubular structure with both ends penetrating. The window mirror 252 is separated in the window mirror barrel 251 to form the window mirror module 25 in combination, and then the window mirror module 25 is arranged in the optical channel 221, or the window mirror module 25 is arranged in the installation groove 237 of the light emitting head 23 as in the above - mentioned embodiment; with such an arrangement, it can be avoided that the side wall of the light emitting head 23 or the optical channel 221 directly contacts the window mirror 252, thereby reducing the risk of damage to the window mirror 252. The connection method between the window mirror barrel 251 and the optical channel 221 or the installation groove 237 can be a threaded connection, a set screw tightening or other connection methods, which are not limited herein.

[0075] Please refer to Figure 3 and Figure 6 , in some embodiments of the present application, the focusing lens module 24 includes a focusing lens barrel 242 and a focusing lens 241 arranged in the focusing lens barrel 242, and the focusing lens barrel 242 is arranged in the optical channel 221.

[0076] In this embodiment, the focusing lens 241 is disposed in the focusing lens barrel 242 to form a focusing lens module 24 in combination. The way of installing the focusing lens 241 in the focusing lens barrel 242 can be threaded connection, snap connection, bonding, etc.; alternatively, a focusing lens fixing seat 243 can be provided, and a limiting step is protruded on the inner wall of the focusing lens barrel 242, so that the focusing lens 241 is limited between the focusing lens fixing seat 243 and the limiting step. Among them, the connection method between the focusing lens barrel 242 and the optical channel 221 can be threaded connection, bonding or snap connection, etc.; between the focusing lens fixing seat 243 and the focusing lens barrel 242, threaded connection, bonding or snap connection and other forms can also be adopted. And by installing the focusing lens 241 through the focusing lens barrel 242, direct contact between the optical channel 221 and the focusing lens 241 can be avoided, thereby reducing the risk of damage to the focusing lens 241.

[0077] Please refer to Figure 1 and Figure 2 , in some embodiments of the present application, the laser 100 further includes an air pipe joint 26, and the air pipe joint 26 is disposed at the air flow inlet 222. With this setting, it is convenient to connect the air pipe to the air flow inlet 222 to connect the air supply mechanism through the air pipe or the air inlet interface 11 in the following embodiment. Among them, the air pipe joint 26 can be integrally formed with the channel structure 22, or can be installed on the outer wall of the channel structure 22. For example, one end of the air pipe joint 26 is inserted into the air flow inlet 222, or the air pipe joint 26 and the channel structure 22 are connected to each other by welding, bonding, bolt connection, etc., which is not limited here.

[0078] With reference to Figure 1 and Figure 4 , in some embodiments of the present application, the laser 100 further includes an adapter 27, the adapter 27 is disposed on the outer wall of the channel structure 22 where the air flow inlet 222 is opened, and the adapter 27 is provided with a connection hole 271 opposite to the air flow inlet 222, and the air pipe joint 26 is inserted into the connection hole 271.

[0079] In this embodiment, an adapter 27 is sleeved on the outer wall of the channel structure 22. The adapter 27 is sleeved at the air inlet 222 and is provided with a connection hole 271 communicating with the air inlet 222. Then, one end of the tracheal connector 26 is inserted into the connection hole 271 to connect the tracheal connector 26 with the air inlet 222, so as to facilitate connecting a trachea to connect the air inlet 222 with the air supply mechanism. The setting of the adapter 27 enables the tracheal connector 26 to have a suitable insertion position, avoiding the thin side wall of the channel structure 22 causing the tracheal connector 26 to be unable to be stably inserted into the air inlet 222, and at the same time avoiding the tracheal connector 26 being inserted into the optical channel 221 and affecting the emission of laser. Between the adapter 27 and the channel structure 22, connection methods such as bolt connection, snap connection, bonding, and magnetic attraction connection can be adopted. In addition, an installation plane 223 can be provided on the outer side wall of the channel structure 22, and the air inlet 222 is opened on the installation plane 223. The setting of the installation plane 223 can facilitate the installation of the adapter 27 and improve the airtightness between the adapter 27 and the channel structure 22.

[0080] Please refer to Figure 1 , in some embodiments of the present application, the laser 100 further includes a housing 10. A receiving cavity is formed in the housing 10. The bottom of the receiving cavity has an opening. The laser generator 10 and a part of the channel structure 22 are arranged in the receiving cavity, and the channel structure 22 penetrates through the bottom opening of the receiving cavity.

[0081] In this embodiment, the laser 100 includes a housing 10 as a bearing and installation base. A receiving cavity is formed in the housing 10, and an opening communicating with the receiving cavity is provided at the bottom of the housing 10. The laser generator 21 is arranged in the receiving cavity, and a part of the channel structure 22 is arranged in the receiving cavity and extends downward through the bottom opening of the receiving cavity. Among them, the laser generator 21 can be arranged above the channel structure 22, and the laser emitted by the laser generator 21 directly enters the optical channel 221. Or at least one reflector 28 can be arranged in the receiving cavity to change the laser propagation route, and the reflector 28 is used to guide the laser emitted by the laser generator 21 into the optical channel 221, so that the laser generator 21 does not need to be arranged above the channel structure 22, reasonably planning the structure layout in the laser 100 and reducing the volume of the laser 100.

[0082] Please refer to Figure 1 , in some embodiments of the present application, the housing 10 is provided with an air inlet interface 11. The laser 100 further includes an air duct. At least a part of the air duct is arranged in the receiving cavity and communicates with the air inlet interface 11. The end of the air duct far from the air inlet interface 11 communicates with the air inlet 222.

[0083] In this embodiment, an air inlet interface 11 is opened on the housing 10, and an air duct is provided to connect the air inlet interface 11 and the air flow inlet 222. The air duct is arranged in the accommodation cavity, and an avoidance hole can be opened on the side wall or the bottom wall of the accommodation cavity, so that the air duct can pass through the avoidance hole and extend outside the accommodation cavity to communicate with the air flow inlet 222 on the channel structure 22. When the laser 100 of the present application is applied to a laser device, a back plate for installing the laser 100 is usually provided on the main body of the laser device, and one side plate surface of the back plate is the installation surface for installing the laser 100. An air inlet channel is provided in the back plate, and an air path interface communicating with the air inlet channel is opened on the installation surface of the back plate; among them, the air inlet channel can penetrate through both side plate surfaces of the back plate, or the other end opening of the air inlet channel away from the air path interface can be opened on any side surface between the two side plate surfaces. The other end opening of the air inlet channel away from the air path interface can be used to connect to a gas supply mechanism such as an air pump; when the laser 100 is installed on the installation surface of the back plate, the air inlet interface 11 opened on the housing 10 of the laser 100 is arranged opposite to and communicated with the air path interface on the installation surface, so that the laser 100 is communicated with the gas supply mechanism such as an air pump through the air inlet channel. With such a setting, the installation of the laser 100 and the operation of supplying gas to the laser 100 can be carried out simultaneously. When the laser 100 is installed, the air path is connected at the same time, and there is no need to perform an air connection operation before or after installing the laser 100, which improves the disassembly and assembly convenience of the laser 100.

[0084] During laser processing, a gas supply mechanism such as an air pump drives air flow to flow into the laser 100 from the air inlet channel and the air inlet interface 11, and then flows into the optical channel 221 from the air flow inlet 222 and blows out from the light outlet 234 to remove dust in front of the light outlet 234.

[0085] In a general laser device, a processing platform for placing a processing material is located below the laser 100, so that the light outlet 234 of the laser 100 is arranged downward; at this time, the installation surface of the back plate can be a vertical plane, and the side wall of the laser 100 is fixed to the installation surface; or the installation surface of the back plate can be arranged horizontally downward, and the top wall of the laser 100 is fixed to the installation surface. The connection method between the laser 100 and the back plate can be to provide a dovetail groove on the back plate and a corresponding plug-in structure on the housing 10, so that the housing 10 is plugged and matched with the back plate. In addition, the connection method between the laser 100 and the back plate can also be at least one of snap connection, bolt connection, magnetic attraction connection, etc., which is not limited here.

[0086] In some embodiments of the present application, the channel structure 22 can be arranged to be liftable in the housing.

[0087] In this embodiment, the channel structure 22 is configured to be liftable, so that the heights of the focusing lens module 24 and the light outlet 234 can be adjusted by adjusting the height of the channel structure 22. On the one hand, by adjusting the height of the focusing lens module 24, the height of the laser focus can be adjusted, so that when processing positions at different heights are processed, the laser focus can fall on the processing positions at different heights. On the other hand, the laser head 23 can maintain an appropriate distance from the processing positions at different heights, so that the air flow blown out from the light outlet 234 can play a good dust removal role for the processing positions at different heights, avoiding the situation that the air flow cannot reach the processing position or the air flow reaching the processing position is weak due to the light outlet 234 being too far away from the processing position.

[0088] In this embodiment, it can be that the entire laser module 20 including the laser generator 21 and the channel structure 22 is liftable, or only the channel structure 22 is liftable. Optionally, only the channel structure 22 is liftable to adjust the height positions of the laser focus and the light outlet 234, without the need for the entire laser module 20 to be lifted together, making the process of adjusting the heights of the laser focus and the light outlet 234 more convenient and reducing the driving energy consumption. Among them, the method of driving the channel structure 22 to lift can be to use a motor and a rack and pinion structure, a belt drive structure, or a worm and worm gear and other transmission mechanisms to drive the channel structure 22 to lift, or an external thread can be provided on the outer wall of the channel structure 22, and a nut is provided to be sleeved outside the channel structure 22 and thread-engaged with the channel structure 22, and driving the nut to rotate can lift the channel structure 22.

[0089] When the laser 100 is applied to a laser device, the laser 100 is fixed at the same height position through the housing 10, and at least part of the laser module 20 or part of the structure including the laser module 20 is driven by the lifting module in the laser 100 to lift to adjust the height positions of the laser focus and the light outlet 234, so that it is not necessary to lift the entire laser 100 in the laser device, making the lifting process of adjusting the laser focus height more convenient.

[0090] Optionally, the air duct connecting the air flow inlet 222 can be made of materials such as plastic, rubber, PVC (polyvinyl chloride), PE (polyethylene), PP (polypropylene), etc., so that the air duct can be bent and deformed according to requirements. With such a setting, when the channel structure 22 lifts, the air duct can undergo adaptive deformation to move with the air flow inlet 222 and maintain the connection with the air flow inlet 222, so that the transmitted air flow is relatively stable and the air blowing dust removal effect is ensured.

[0091] The present application also provides a laser device, which may be a laser processing device such as a laser engraving machine, a laser marking machine, and a laser cutting machine, or a device that uses lasers for ranging. The laser device includes a laser 100 as described in any of the foregoing embodiments, and the specific structure of the laser 100 refers to any of the foregoing embodiments, which will not be elaborated herein.

[0092] Since the laser device provided by the present application applies all the technical solutions of all the foregoing embodiments, it has at least all the beneficial effects brought by all the foregoing technical solutions, which will not be elaborated herein one by one.

[0093] In an embodiment of the present application, the device body of the laser device is provided with a back plate, an air intake channel is formed in the back plate, an air path interface communicating with the air intake channel is opened on the mounting surface of the back plate, the laser 100 is disposed on the mounting surface, and the air intake interface 11 opened on the outer shell 10 of the laser 100 is disposed opposite to and communicated with the air path interface.

[0094] In some embodiments, the laser 100 includes an outer shell 10 and a laser module 20. An air intake interface 11 is opened on the outer shell 10, and an air duct is provided to connect the air intake interface 11 and the air flow inlet 222. The air duct is disposed in the accommodation cavity, and an avoidance hole may be opened on the side wall or the bottom wall of the accommodation cavity, so that the air duct can pass through the avoidance hole and extend outside the accommodation cavity to communicate with the air flow inlet 222 on the channel structure 22.

[0095] The device body of the laser device is provided with a back plate for mounting the laser 100, and one side plate surface of the back plate is used as the mounting surface for mounting the laser 100. An air intake channel is provided in the back plate, and an air path interface communicating with the air intake channel is opened on the mounting surface of the back plate; wherein, the air intake channel may penetrate through both side plate surfaces of the back plate, or the other end opening of the air intake channel away from the air path interface may be opened on any one of the side surfaces between the two side plate surfaces. The other end opening of the air intake channel away from the air path interface may be used to connect to a gas supply mechanism such as an air pump; when the laser 100 is mounted on the mounting surface of the back plate, the air intake interface 11 opened on the outer shell 10 of the laser 100 is disposed opposite to and communicated with the air path interface on the mounting surface, so that the laser 100 is communicated with the gas supply mechanism such as an air pump through the air intake channel. With such a setting, the operation of mounting the laser 100 and supplying gas to the laser 100 can be carried out simultaneously, and the air path is connected simultaneously when the laser 100 is mounted, without the need to perform the air connection operation before or after mounting the laser 100, improving the disassembly and assembly convenience of the laser 100.

[0096] In an embodiment of the present application, a conductive structure is provided on the outer surface of the laser 100, the device body of the laser device has a mounting position, a power connection structure is provided at the mounting position, the laser 100 is disposed at the mounting position, and the power connection structure is docked with and electrically connected to the conductive structure.

[0097] In this embodiment, there is no need to provide a wire connection between the laser 100 and the device main body. A conductive structure is provided on the outer surface of the laser 100. The conductive structure is set as one of a male socket and a female socket. A power connection structure is provided at the installation position of the device main body. The power connection structure is the other of the male socket and the female socket. When the laser 100 is installed at the installation position, the conductive structure and the power connection structure are butted to form an electrical connection relationship, without the need for wiring operations before or after installing the laser 100, improving the disassembly and assembly convenience of the laser 100; and reducing the use of wires, making the overall structure of the laser device relatively tidy.

[0098] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect application in other related technical fields are all included in the patent protection scope of the present invention.

Claims

1. A laser, characterized in that: The laser includes a laser generator, a channel structure and a focusing lens module; An optical channel is formed in the channel structure, the focusing mirror module is arranged in the optical channel, and the laser generated by the laser generator is emitted through the optical channel; An air flow inlet connected to the light channel is formed on the side wall of the channel structure, and the air flow inlet is located at the light output side of the focusing lens module.

2. The laser according to claim 1, characterized in that The channel structure and the light channel both extend in the same direction, and the air flow inlet is closer to the outlet of the light channel.

3. The laser according to claim 1, characterized in that The laser also includes a trachea joint; Wherein, the trachea joint is inserted into the air flow inlet; Alternatively, the laser further comprises an adapter, which is arranged on an outer wall of the channel structure having the airflow inlet, the adapter is provided with a connecting hole opposite to the airflow inlet, and the air pipe connector is inserted into the connecting hole.

4. A laser as claimed in any one of claims 1 to 3, characterized in that The laser also includes a light output head, which is arranged at the exit of the light channel, and one end of which is inserted into the light channel, and the light output head is provided with a through hole connected to the light channel; Wherein, the side wall of the light output head is opposite to the air flow inlet and is provided with an air inlet connecting the air flow inlet and the through hole; Alternatively, the air flow inlet is located between the focusing lens module and the light output head.

5. The laser according to claim 4, characterized in that The light output head includes a plug-in part and a limiting part, the plug-in part is inserted in the light channel, the limiting part is located outside the light channel and abuts against the end face of the channel structure, and the through hole passes through the plug-in part and the limiting part; when the side wall of the light output head is arranged opposite to the air flow inlet and is provided with the air inlet, an air groove is provided between the plug-in part and the channel wall of the light channel, the air groove at least partially surrounds the through hole along the circumferential direction, and the air groove is communicated with the air inlet and the air flow inlet.

6. The laser according to claim 5, characterized in that The air groove comprises a groove concavely arranged on the outer wall of the light output head, the groove circumferentially surrounds at least a portion of the through hole, a portion of the groove is arranged opposite to the air flow inlet, and the air inlet intersects the groove; And / or, at least two air inlets are formed on the side wall of the light output head, and the air inlets are spaced apart along the circumference of the through hole.

7. A laser as claimed in any one of claims 1 to 3, characterized in that The laser further comprises a window mirror module, which is arranged in the optical channel and located at the light-emitting side of the focusing mirror module, and the airflow inlet is located at a side of the window mirror module away from the focusing mirror module.

8. The laser according to claim 7, characterized in that The window mirror module comprises a window lens barrel and a window mirror arranged in the window lens barrel, and the window lens barrel is arranged in the light channel; And / or, the laser further comprises a light output head, one end of which is inserted into the optical channel; Wherein, the light output head abuts against one end of the window mirror module away from the focusing mirror module; and / or, the end surface of the light output head facing the window mirror module is concavely provided with a mounting groove, and the window mirror module is arranged in the mounting groove.

9. A laser as claimed in any one of claims 1 to 3, characterized in that The laser also includes a shell, a containing cavity is formed in the shell, the bottom of the containing cavity has an opening, the laser generator and part of the channel structure are arranged in the containing cavity, and the channel structure passes through the bottom opening of the containing cavity and can be raised and lowered.

10. A laser device, characterized in that: The laser device comprises a laser as claimed in any one of claims 1 to 9.

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