Laser and laser device

Abstract

The utility model provides a laser and a laser device, the laser comprises a housing, a laser module and a driving module, an accommodating cavity is formed in the housing, and the bottom of the accommodating cavity is provided with an opening; the laser module comprises a laser generator, a lifting structure and a focus lens module, the laser generator is arranged in the containing cavity, the lifting structure penetrates through the bottom opening of the containing cavity, a light channel is formed in the lifting structure, the focus lens module is arranged in the light channel, and the focus lens module is arranged in the light channel. Laser emitted by the laser generator is emitted through the light channel; the driving module is in transmission connection with the lifting structure so as to drive the lifting structure to ascend and descend. According to the technical scheme, the laser focus is convenient to adjust, so that high machining precision and machining efficiency can be kept when machining positions of different heights are machined.

Description

Technical Field

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

[0002] Laser devices that use lasers as a medium to achieve purposes such as processing or ranging are becoming increasingly popular. Laser devices such as laser engraving machines and laser marking machines can be used for laser processing. In practical applications, it is necessary to make the laser focus fall on the processing material to achieve better processing effects. However, with the continuous expansion of demand, laser processing is also required at different heights of processing positions, and it is relatively inconvenient to adjust the laser focus position in related technologies. Summary of the Utility Model

[0003] The main purpose of the utility model is to provide a laser and a laser device, aiming to facilitate the adjustment of the laser focus so as to maintain high processing accuracy and processing efficiency when processing different heights of processing positions.

[0004] To achieve the above object, a laser proposed by the utility model includes:

[0005] A housing, a receiving cavity is formed inside the housing, and the bottom of the receiving cavity has an opening;

[0006] A laser module, the laser module includes a laser generator, a lifting structure and a focusing lens module. The laser generator is arranged in the receiving cavity. The lifting structure passes through the bottom opening of the receiving cavity. An optical channel is formed in the lifting structure. The focusing lens module is arranged in the optical channel, and the laser emitted by the laser generator is emitted through the optical channel; and

[0007] A driving module, the driving module is in transmission connection with the lifting structure to drive the lifting structure to move up and down.

[0008] In an embodiment of the present application, both the lifting structure and the optical channel linearly extend along the lifting direction, and the center line of the optical channel is parallel to the optical axis after the laser enters the optical channel.

[0009] In an embodiment of the present application, a first transmission part is arranged on the outer wall of the lifting structure. The driving module includes a driving part and a transmission part arranged in the receiving cavity. The transmission part is provided with a second transmission part arranged circumferentially around it. The first transmission part is in transmission cooperation with the second transmission part, and the driving part is in transmission cooperation with the transmission part to drive the transmission part to move so as to drive the lifting structure to move up and down.

[0010] In an embodiment of the present application, the first transmission part is an external thread tooth, the transmission member is provided with a threaded hole, the second transmission part is the internal thread tooth of the threaded hole, the lifting structure is disposed through the threaded hole, and the driving member is used to drive the transmission member to rotate.

[0011] In an embodiment of the present application, the transmission member further includes a third transmission part and a first protruding part connected to each other. The third transmission part is provided with the threaded hole and is drivingly connected to the driving member. The first protruding part protrudes from the lower surface of the third transmission part.

[0012] The laser further includes a backlash eliminator nut and a first spring. The backlash eliminator nut includes an abutting part and a second protruding part connected to each other. The abutting part is threadedly sleeved on the lifting structure. The second protruding part protrudes from the surface of the abutting part facing the transmission member. The second protruding part cooperates with the first protruding part. The first spring is clamped between the abutting part and the third transmission part. When the transmission member rotates, the first protruding part can act on the second protruding part to make the backlash eliminator nut rotate.

[0013] In an embodiment of the present application, the laser further includes a lower fixing seat and an upper fixing seat. The lower fixing seat is located below the housing and covers the bottom wall of the housing. A receiving cavity is formed in the lower fixing seat. The lifting structure is disposed through the receiving cavity and the lower fixing seat. The backlash eliminator nut is located in the receiving cavity. The upper fixing seat is disposed in the accommodating cavity and fixed to the bottom wall of the accommodating cavity, and together with the bottom wall of the accommodating cavity, an installation cavity is enclosed. The lifting structure is disposed through the receiving cavity, the lower fixing seat, the installation cavity and the upper fixing seat. An opening communicating with the installation cavity is formed in the side wall of the upper fixing seat. The transmission member is located in the installation cavity and is spaced from the side wall of the installation cavity, and part of the transmission member is exposed from the opening to be drivingly connected to the driving member.

[0014] In an embodiment of the present application, the laser further includes a first bearing. The first bearing is disposed in the installation cavity and fixedly connected to the upper fixing seat, and the first bearing is sleeved on the lifting structure.

[0015] The laser further includes a second spring. The second spring is disposed between the top wall of the installation cavity and the first bearing and abuts against the first bearing.

[0016] And / or, at least part of the side wall of the installation cavity forms a limiting surface. The limiting surface is a non-circular arc surface. The side wall of the first bearing facing the limiting surface is adapted to the shape of the limiting surface and fits with the limiting surface.

[0017] And / or, a positioning groove is provided in the installation cavity, and part of the first bearing is limited and fixed in the positioning groove;

[0018] And / or, a part of the outer peripheral surface of the lifting structure is a plane, a part of the surface of the inner ring of the first bearing is a plane, and the plane of the first bearing is arranged opposite to the plane of the lifting structure, so that the first bearing is in limit fit with the lifting structure.

[0019] In an embodiment of the present application, the laser module further includes a reflecting mirror, which is arranged above the lifting structure and on the side of the laser generator to guide the laser emitted by the laser generator into the optical channel;

[0020] The housing includes a first housing and a second housing arranged side by side. The accommodating cavity includes a first chamber in the first housing and a second chamber in the second housing. A communication hole for communicating the first chamber and the second chamber is provided between the first housing and the second housing; the laser generator is arranged in the first chamber and faces the communication hole, and the reflecting mirror and the lifting structure are both arranged in the second chamber.

[0021] In an embodiment of the present application, an air flow inlet communicating with the optical channel is provided on the side wall of the lifting structure, and the air flow inlet is located between the focusing lens module and the outlet of the optical channel.

[0022] 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. The output optical head is provided with a through hole communicating the optical channel and the air flow inlet, and an air inlet communicating the air flow inlet and the through hole; and / or, the laser further includes an adapter and a tracheal joint. The adapter is arranged on the outer wall of the lifting structure and covers the air flow inlet. The adapter is provided with a connection hole opposite to the air flow inlet, and the tracheal joint is inserted into the connection hole.

[0023] In an embodiment of the present application, a groove is recessed in the area of the outer side wall of the output optical head opposite to the air flow inlet. The groove circumferentially surrounds at least part of the through hole, and the air inlet communicates with the groove;

[0024] And / or, at least two air inlets are provided on the side wall of the output optical head, and the air inlets are arranged at intervals along the circumference of the through hole.

[0025] The present application also proposes a laser device, which includes a device main body and the laser as described in any one of the foregoing embodiments, and the laser is arranged on the device main body.

[0026] The technical solution of the present utility model fixes the laser generator of the laser module in the housing, makes the lifting structure provided with the focusing lens module liftable relative to the housing, and can drive the lifting structure to lift through the driving module to adjust the position of the light outlet of the laser and the laser focus, so that the laser focus can fall on the processing positions at different heights, so as to maintain high processing accuracy and processing efficiency when processing the processing positions at different heights; moreover, in the embodiments of the present application, only the lifting structure of the laser module in the laser is driven to lift, without the need to lift the entire laser module in the housing and without the need to lift the entire laser in the laser device, making the process of adjusting the height position of the light outlet and the laser focus more convenient and flexible, without the need to provide a high driving force and reducing the driving energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] 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 use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model, and for those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0028] Figure 1 Structural diagram of an embodiment of the laser device of the present application;

[0029] Figure 2 Structural diagram of an embodiment of the laser of the present application;

[0030] Figure 3 is Figure 2 Structural diagram of the laser in removing part of the housing;

[0031] Figure 4 is Figure 2 Cross-sectional view of the laser;

[0032] Figure 5 is Figure 4 Enlarged view of part A in;

[0033] Figure 6 is Figure 2 Structural diagram of the laser in the second housing part;

[0034] Figure 7 is Figure 2 Structural diagram of the second housing part in removing the upper fixing seat and the lower fixing seat;

[0035] Figure 8 is Figure 7 Cooperating structural diagram of the driving module and the lifting structure;

[0036] Figure 9 isFigure 6 Exploded view;

[0037] Figure 10 For Figure 9 Exploded view of the upper fixing seat and the first bearing from another perspective;

[0038] Figure 11 For Figure 2 Structural diagram of the laser in the first housing part;

[0039] Figure 12 Exploded view of the laser of the present application in the first housing part;

[0040] Figure 13 Structural diagram of the first housing with part of the side wall removed;

[0041] Figure 14 Cross-sectional view of the laser module in the laser of the present application;

[0042] Figure 15 For Figure 14 Enlarged view at position B in;

[0043] Figure 16 Partial exploded view of the laser module of the present application;

[0044] Figure 17 For Figure 16 Structural diagram of the optical pickup head in;

[0045] Figure 18 Structural diagram of the device main body and the gas supply mechanism in the laser device of the present application;

[0046] Figure 19 For Figure 18 Enlarged view at position C in;

[0047] Figure 20 For Figure 18 Exploded view of the laser device at the gas path interface position.

[0048] Explanation of the reference numerals in the attached drawings:

[0049] 1. Laser device; 100. Laser; 10. Housing; 11. First housing; 111. First chamber; 112. Air inlet; 113. Second heat dissipation hole; 114. Avoidance opening; 12. Second housing; 121. Second chamber; 122. Communication hole; 123. First heat dissipation hole; 124. Ventilation opening; 13. Accommodation cavity; 14. Enclosure wall; 141. First plate body; 142. Second plate body; 143. Limiting space; 15. Support part; 16. Heat dissipation teeth; 17. Connection structure; 18. Air inlet interface; 19. Conductive structure; 20. Laser module; 21. Laser generator; 22. Lifting structure; 221. Light channel; 222. Air flow inlet; 223. Installation plane; 23. Laser output head; 231. Insertion part; 232. Limiting part; 233. Through hole; 234. Light output port; 235. Air inlet; 236. Groove; 237. Limiting groove; 24. Focus lens module; 241. Focus lens; 242. Focus lens barrel; 243. Focus lens fixing seat; 25. Window lens module; 251. Window lens barrel; 252. Window lens; 26. Air pipe joint; 27. Adapter; 271. Connection hole; 28. Reflector; 30. Driving module; 31. Driving part; 311. Motor; 312. Transmission gear; 32. Transmission part; 321. Third transmission part; 322. First protruding part; 33. Backlash nut; 331. Contact part; 332. Second protruding part; 34. First spring; 35. Lower fixing seat; 351. Accommodation cavity; 36. Upper fixing seat; 361. Installation cavity; 362. Positioning groove; 363. Limiting surface; 364. Installation part; 37. First bearing; 38. Second bearing; 39. Second spring; 40. Position detection module; 41. Inductive part; 411. Transmitting part; 412. Receiving part; 42. Trigger part; 421. Fixing part; 422. Blocking part; 50. Heat dissipation module; 51. Heat dissipation fan; 60. Distance measurement module; 61. Probe; 70. Adapter plate; 200. Equipment main body; 210. Back plate; 220. Air circuit interface; 230. Sealing ring; 240. Locking part; 250. Air pipe; 260. Power connection structure; 270. Translation assembly; 280. Drag chain; 290. Installation structure; 300. Air supply mechanism.

[0050] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0051] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to 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 the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0052] It should be noted that all the 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, movement conditions, etc. between components in a certain specific posture (as shown in the attached drawings). If this specific posture changes, the directional indications will also change accordingly.

[0053] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside 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.

[0054] In addition, in the present utility model, descriptions such as "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can 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 is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0055] The present utility model provides a laser 100.

[0056] Please refer to Figures 2 to 4 , in some embodiments of the present application, the laser 100 includes a housing 10, a laser module 20, and a driving module 30. An accommodation cavity 13 is formed inside the housing 10, and the bottom of the accommodation cavity 13 has an opening; the laser module 20 includes a laser generator 21, a lifting structure 22, and a focusing lens module 24. The laser generator 21 is disposed in the accommodation cavity 13, the lifting structure 22 passes through the bottom opening of the accommodation cavity 13, a light channel 221 is formed in the lifting structure 22, the focusing lens module 24 is disposed in the light channel 221, and the laser emitted by the laser generator 21 is emitted through the light channel 221; the driving module 30 is in transmission connection with the lifting structure 22 to drive the lifting structure 22 to move up and down.

[0057] Specifically, the laser 100 proposed in this application can be applied to laser devices 1 such as laser marking machines, laser engraving machines, laser cutting machines, and laser welding machines, and is used to emit laser light to achieve operations such as laser marking, laser engraving, laser cutting, and laser welding. In the laser device 1, the processing platform for placing the processing material is usually located below the laser 100, and the laser light emitted by the laser 100 propagates downward and is incident on the processing material.

[0058] In the laser 100, the housing 10 serves as a bearing and installation foundation. An accommodation cavity 13 is formed inside the housing 10, and an opening communicating with the accommodation cavity 13 is provided at the bottom of the housing 10. The laser module 20 includes a laser generator 21, a lifting structure 22, and a focusing lens module 24. The laser generator 21 is disposed in the accommodation cavity 13. The lifting structure 22 is vertically movably disposed through the bottom opening of the accommodation cavity 13 and extends downward, so that part of the structure of the lifting structure 22 is always located outside the accommodation cavity 13. In some embodiments, when the lifting structure 22 rises to the highest position, the entire lifting structure 22 can be located in the accommodation cavity 13. A light channel 221 is formed in the lifting structure 22, and the laser light generated by the laser generator 21 can be emitted downward through the light channel 221 in the lifting structure 22. It can be that the laser generator 21 is disposed above the lifting structure 22, and the laser light emitted by the laser generator 21 is directly incident into the light channel 221; alternatively, at least one reflecting mirror 28 is provided in the accommodation cavity 13 to change the laser propagation route, and the reflecting mirror 28 is used to guide the laser light emitted by the laser generator 21 into the light channel 221, so that the laser generator 21 does not need to be disposed above the lifting structure 22. In addition, a focusing lens module 24 is provided in the light 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, reduce the size of the laser spot formed at the processing position, and increase the energy density of the laser spot.

[0059] In the laser 100, a driving module 30 is further provided to drive the lifting structure 22 to lift, so as to adjust the heights of the lifting structure 22 and the focusing lens 241, thereby adjusting the height positions of the light output port 234 of the laser 100 and the laser focus; it can be understood that when the laser device 1 is used for processing, when the laser focus falls on the processing material, the laser spot size on the processing material is small and the energy is concentrated, which can improve the processing accuracy and efficiency. Therefore, by using the driving module 30 to drive the lifting structure 22 to lift, the height positions of the light output port 234 and the laser focus can be adjusted according to the processing materials at different heights or the processing positions of the processing materials at different heights, ensuring that the laser focus falls on the processing material. In addition, in the embodiment of the present application, only the lifting structure 22 of the laser module 20 in the laser 100 is driven to lift, without the need to lift the entire laser module 20 in the housing 10 and without the need to lift the entire laser 100 in the laser device 1, making the process of adjusting the height positions of the light output port 234 and the laser focus more convenient and flexible, without the need to provide a high driving force and reducing the driving energy consumption.

[0060] Among them, the structural form in which the driving module 30 drives the lifting structure 22 to lift can be to set the driving module 30 as a motor 311 and a gear-rack structure, a belt drive structure or a worm and worm gear, etc. to drive the lifting structure 22 to lift, or to set an external thread on the outer wall of the lifting structure 22 and set a nut sleeved outside the lifting structure 22 to be in threaded engagement with the lifting structure 22, and driving the nut to rotate can make the lifting structure 22 lift; in addition, the driving module 30 can also be set in the form of a cylinder or a hydraulic cylinder, etc., and the lifting structure 22 is connected to the piston rod of the cylinder or the hydraulic cylinder, which is not limited herein.

[0061] Therefore, it can be understood that the technical solution of the present application fixes the laser generator 21 of the laser module 20 in the housing 10, makes the lifting structure 22 provided with the focusing lens module 24 liftable relative to the housing 10, and can drive the lifting structure 22 to lift through the driving module 30 to adjust the positions of the light output port 234 of the laser 100 and the laser focus, so that the laser focus can fall on the processing positions at different heights, so as to maintain high processing accuracy and efficiency when processing the processing positions at different heights; and, in the embodiment of the present application, only the lifting structure 22 of the laser module 20 in the laser 100 is driven to lift, without the need to lift the entire laser module 20 in the housing 10 and without the need to lift the entire laser 100 in the laser device 1, making the process of adjusting the height positions of the light output port 234 and the laser focus more convenient and flexible, without the need to provide a high driving force and reducing the driving energy consumption.

[0062] Please refer to Figure 4In some embodiments of the present application, the lifting structure 22 and the optical channel 221 both extend along the lifting direction, and the center line of the optical channel 221 is parallel to the optical axis after the laser enters the optical channel 221.

[0063] In this embodiment, the lifting structure 22 can be a hollow tubular structure, and the light channel 221 is a hollow hole. The center line of the light channel 221 is parallel to the optical axis after the laser enters the light channel 221, and the structure is more compact.

[0064] Combined with reference Figures 5 to 7 In some embodiments of the present application, a first transmission part is provided on the outer wall of the lifting structure 22, and the driving module includes a driving member and a transmission member arranged in the accommodating cavity. The transmission member is provided with a second transmission part arranged around its circumference, and the first transmission part cooperates with the second transmission part, and the driving member cooperates with the transmission member, so as to drive the driving member to rotate so that the lifting structure can be lifted and lowered.

[0065] In this embodiment, the lifting structure 22 is a hollow tube structure, that is, the light channel 221 is formed in the hollow part, and the outer wall of the lifting structure 22 is provided with a first transmission part, and the rotational freedom of the lifting structure 22 is limited, so that the lifting structure 22 can only be lifted and lowered relative to the outer shell 10; the driving module 30 includes a driving member 31 and a transmission member 32 connected to the driving member 31, the transmission member 32 can be rotatably arranged, and is provided with a second transmission part arranged around its rotation circumference, the second transmission part cooperates with the first transmission part, the driving member 31 can drive the transmission member 32 to move, so that the lifting structure 22 is driven to lift and lower by the transmission member 32.

[0066] Among them, the first transmission part can be set as a rack structure extending along the length direction of the lifting structure 22, and the transmission member 32 can be set as an external gear accordingly, so that a matching structure similar to a gear and a rack is formed between the transmission member 32 and the lifting structure 22; or, an external threaded tooth can be set on the outer wall of the lifting structure 2 as the first transmission part, and a screw hole can be set on the transmission member 32 accordingly, so that a matching structure similar to a screw and a screw nut is formed between the lifting structure 22 and the transmission member 32; in addition, the transmission member 32 and the lifting structure 22 can also be set as a matching structure similar to a worm gear, which is not specifically limited here. Through the transmission cooperation between the first transmission part and the second transmission part, it is convenient to control the lifting distance of the lifting structure 22, improve the control accuracy, and when there is no need to lift the lifting structure 22, the lifting structure 22 can be clamped by the meshing relationship between the first transmission part and the second transmission part to prevent the lifting structure 22 from moving up and down.

[0067] In this embodiment, the driving manner of the driving member 31 and the transmission member 32 may be to set the driving member 31 as a motor 311 and drive the transmission member 32 to rotate through methods such as gear transmission, belt transmission, chain transmission, or link transmission. In some embodiments, when the transmission member 32 is set as a gear or worm gear structure, the output shaft of the motor 311 can also be directly connected to the transmission member 32. Additionally, the driving member 31 can be set as a cylinder or hydraulic cylinder structure, etc., and drive the transmission member 32 to rotate through methods such as gear rack, worm and worm gear, etc. For example, teeth are provided on the outer wall of the transmission member 32 to make the transmission member 32 mesh with the rack, and the cylinder is used to drive the rack to slide to drive the transmission member 32 to rotate. The specific driving manner of the driving member 31 and the transmission member 32 is not limited herein.

[0068] With reference to Figures 5 to 7 , in some embodiments of the present application, the first transmission portion is external thread teeth, the transmission member 32 is provided with a threaded hole, the second transmission portion is the internal thread teeth of the threaded hole, and the lifting structure 22 is disposed through the threaded hole, and the driving member 31 is used to drive the transmission member 32 to rotate.

[0069] In this embodiment, external thread teeth are provided on the outer side wall of the lifting structure 22 as the first transmission portion, and the transmission member 32 is provided with a threaded hole so that the transmission member 32 is threadedly sleeved on the outside of the lifting structure 22. The driving member 31 can drive the transmission member 32 to rotate, so that the driving member 32 drives the lifting structure 22 to lift. The driving manner of threaded connection can facilitate controlling the lifting distance of the lifting structure 22, improve the control accuracy, and can lock the lifting structure 22 through threaded engagement when it is not necessary to lift the lifting structure 22 to prevent the lifting structure 22 from moving up and down. Additionally, compared with forming a cooperation structure similar to gear rack or worm and worm gear between the lifting structure 22 and the transmission member 32, disposing the lifting structure 22 through the threaded hole of the transmission member 32 can make the lifting structure 22 and the transmission member 32 coaxially arranged, reduce the overall volume of the cooperation structure, and thus reduce the volume of the laser 100. In this embodiment, the lifting structure 22 can be a hollow lead screw.

[0070] Among them, the driving manner of the driving member 31 and the transmission member 32 may be to set the driving member 31 as a motor 311 and drive the transmission member 32 to rotate through methods such as gear transmission, belt transmission, chain transmission, or link transmission. For example, teeth are provided on the outer wall of the transmission member 32 to make the transmission member 32 mesh with the gear, and the motor 311 is used to drive the gear to rotate to drive the transmission member 32 to rotate. In some embodiments, the driving member 31 can also be set as a cylinder or hydraulic cylinder structure, etc., and drive the transmission member 32 to rotate through methods such as gear rack, worm and worm gear, etc. For example, teeth are provided on the outer wall of the transmission member 32 to make the transmission member 32 mesh with the rack, and the cylinder is used to drive the rack to slide to drive the transmission member 32 to rotate.

[0071] With reference to Figure 5 、Figure 8 and Figure 9 In an embodiment of the present application, the transmission member 32 includes a connected third transmission portion 321 and a first protruding portion 322. The third transmission portion 321 is provided with a threaded hole that is threadedly engaged with the lifting structure 22. The third transmission portion 321 is drivingly connected to the driving member 31. The first protruding portion protrudes from the lower surface of the third transmission portion 321. The laser 100 further includes a backlash nut 33 and a first spring 34. The backlash nut 33 includes a connected abutting portion 331 and a second protruding portion 332. The abutting portion 331 is threadedly sleeved on the lifting structure 22. The second protruding portion 332 protrudes from the surface of the abutting portion 331 facing the transmission member 32. The second protruding portion 332 cooperates with the first protruding portion 322. The first spring 34 is clamped between the abutting portion 331 and the third transmission portion 321. When the transmission member 32 rotates, the first protruding portion 322 can act on the second protruding portion 332 to cause the backlash nut 33 to rotate.

[0072] In this embodiment, a backlash nut 33 and a first spring 34 are provided in the laser 100. The backlash nut 33 is threadedly sleeved on the lifting structure 22 and is disposed opposite to the transmission member 32. Among them, the transmission member 32 includes a third transmission portion 321 threadedly sleeved on the lifting structure 22 and a first protruding portion 322 provided on the surface of the third transmission portion 321 facing the backlash nut 33. The backlash nut 33 includes an abutting portion 331 sleeved on the lifting structure 22 and a second protruding portion 332 provided on the surface of the abutting portion 331 facing the transmission member 32. The first protruding portion 322 and the second protruding portion 332 interact with each other at least when the transmission member 32 rotates, which can connect the first protruding portion 322 and the second protruding portion 332 to each other, or can be that the first protruding portion 322 and the second protruding portion 332 are inserted and matched. Thus arranged, when the driving member 31 drives the transmission member 32 to rotate, the transmission member 32 can drive the backlash nut 33 to rotate together, so as to jointly drive the lifting structure 22 to lift through the transmission member 32 and the backlash nut 33. In Figure 9 In the shown embodiment, the first protruding portion 322 forms a first gap, the second protruding portion 332 forms a second gap, the first protruding portion 322 can be inserted into the second gap, and the second protruding portion 332 can be inserted into the first gap.

[0073] The first spring 34 is disposed between the abutting portion 331 and the third transmission portion 321, and both ends of the first spring 34 are elastically abutted against the abutting portion 331 and the third transmission portion 321 respectively; with such an arrangement, elastic forces are applied to the transmission member 32 and the backlash eliminating nut 33 respectively by the first spring 34, and the elastic forces can be used to eliminate the gaps in the axial direction of the lifting structure 22 between the threads of the lifting structure 22 and the threads of the transmission member 32, and to eliminate the gaps in the axial direction of the lifting structure 22 between the threads of the lifting structure 22 and the threads of the backlash eliminating nut 33, so as to eliminate the backlash, avoid errors when controlling the lifting of the lifting structure 22, and prevent the optical path from being skewed due to the gaps between parts, thereby improving the control accuracy of the lifting distance of the lifting structure 22. Among them, the first spring 34 can be sleeved outside the lifting structure 22, the abutting portion 331 and the third transmission portion 321, so as to improve the position stability between the first spring 34 and the backlash eliminating nut 33 and the transmission member 32, and prevent the first spring 34 from falling off.

[0074] With reference to Figure 6 and Figure 7 , in some embodiments of the present application, the laser 100 further includes a lower fixing base 35. The lower fixing base 35 is located below the housing 10 and covers the bottom wall of the housing 10. A receiving cavity 351 is formed in the lower fixing base 35. The lifting structure 22 passes through the receiving cavity 351 and the lower fixing base 35, and the backlash eliminating nut 33 is located in the receiving cavity 351.

[0075] In this embodiment, the lower fixing base 35 is provided in the laser 100. The lower fixing base 35 is disposed below the housing 10 and covers the bottom opening of the accommodating cavity 13. A receiving cavity 351 communicating with the accommodating cavity 13 is formed in the lower fixing base 35, and a through hole is formed in the bottom wall of the lower fixing base 35. The lifting structure 22 passes through the receiving cavity 351 and extends downward through the through hole at the bottom of the lower fixing base 35, so that the laser can be normally emitted. The backlash eliminating nut 33 is disposed in the receiving cavity 351, and the first spring 34 passes through the bottom opening of the accommodating cavity 13 to abut against the backlash eliminating nut 33 located in the receiving cavity 351 and the transmission member 32 located in the accommodating cavity 13 respectively; with such an arrangement, the space at the bottom of the housing 10 is expanded by the lower fixing base 35 for fixing the backlash eliminating nut 33 and the first spring 34, preventing components such as the backlash eliminating nut 33 and the first spring 34 from being installed in the accommodating cavity 13, which may cause the components inside the accommodating cavity 13 to be arranged too closely, or the size of the laser 100 to be increased due to the need to increase the size of the housing 10.

[0076] With reference to Figures 6 to 9, in some embodiments of the present application, the laser 100 further includes an upper fixing seat 36. The upper fixing seat 36 is disposed in the accommodating cavity 13 and fixed to the bottom wall of the accommodating cavity 13, enclosing an installation cavity 361 with the bottom wall of the accommodating cavity 13. The lifting structure 22 passes through the installation cavity 361 and the upper fixing seat 36; an opening communicating with the installation cavity 361 is formed in the side wall of the upper fixing seat 36. The transmission member 32 is located in the installation cavity 361, is spaced from the side wall of the installation cavity 361, and part of the transmission member 32 is exposed at the opening to be drivingly connected to the driving member 31.

[0077] In this embodiment, the upper fixing seat 36 is provided in the laser 100. The upper fixing seat 36 is disposed in the accommodating cavity 13 and covers the area with an opening formed in the bottom wall of the accommodating cavity 13. An installation cavity 361 communicating with the opening is formed in the upper fixing seat 36, and the lifting structure 22 passes through the installation cavity 361 and extends upward from the top wall of the upper fixing seat 36. Among them, an opening communicating with the installation cavity 361 is formed in the side wall of the upper fixing seat 36, and the transmission member 32 is rotatably disposed in the installation cavity 361, so that part of the transmission member 32 is exposed at the opening. Such a setting can protect the transmission member 32 by the upper fixing seat 36, and the driving member 31 can be drivingly connected to the transmission member 32 at the side opening position of the upper fixing seat 36, thereby driving the transmission member 32 to rotate; in addition, it can prevent impurities from falling between the transmission member 32 and the lifting structure 22, resulting in jamming of the rotation of the transmission member 32, thereby avoiding affecting the driving of the lifting structure 22 and ensuring that the lifting process of the lifting structure 22 is relatively stable and smooth.

[0078] Please refer to Figure 5 , in some embodiments of the present application, the laser 100 further includes a first bearing 37. The first bearing 37 is disposed in the installation cavity 361, is fixedly connected to the upper fixing seat 36, and the first bearing 37 is sleeved on the lifting structure 22.

[0079] In this embodiment, the first bearing 37 is disposed in the installation cavity 361, and the first bearing 37 is limited and fixed by the upper fixing seat 36; the first bearing 37 is sleeved on the lifting structure 22. Such a setting not only ensures that the lifting structure 22 does not contact and rub against the side wall of the installation cavity 361, but also can limit the lifting structure 22 by the first bearing 37 to avoid skewing when the lifting structure 22 moves up and down, so that the lifting structure 22 remains vertical and the optical path is prevented from being skewed; and the friction between the first bearing 37 and the lifting structure 22 is small, reducing frictional losses and ensuring that the lifting process of the lifting structure 22 is relatively stable.

[0080] Among them, the fixing method of the first bearing 37 being limited and fixed to the upper fixing seat 36 can be to connect the first bearing 37 and the upper fixing seat 36 to each other. For example, bonding, clamping, bolt locking and other methods can be used. It can also be to set the limiting surface 363 to cooperate with the first bearing 37 in the following embodiments, only restricting the rotation of the first bearing 37 in the installation cavity 361; a positioning groove 362 can also be set to restrict the lifting of the first bearing 37 in the installation cavity 361.

[0081] Please refer to Figure 5 , in some embodiments of the present application, the first bearing 37 is a self-lubricating bearing, and the first bearing 37 abuts against the transmission member 32.

[0082] In this embodiment, the first bearing 37 is abutted against the transmission member 32, so that the transmission member 32 can be pressed and limited by the first bearing 37, avoiding the transmission member 32 from warping and skewing, resulting in poor transmission or jamming between the transmission member 32 and the lifting structure 22, and improving the stability of the transmission member 32 when driving the lifting structure 22 to lift. In addition, the first bearing 37 is set as a self-lubricating bearing. The first bearing 37 can be made of self-lubricating metal or plastic material, and the lubrication effect is provided through its self-lubricating characteristics; thus set, when the transmission member 32 slides relative to the first bearing 37, the material of the self-lubricating bearing will transfer to the object surface during the friction process, forming a solid lubricating film, thereby effectively preventing wear between the first bearing 37 and the transmission member 32, and ensuring the performance stability and service life of the first bearing 37 and the transmission member 32.

[0083] Combined with reference to Figure 5 and Figure 9 , in some embodiments of the present application, the laser 100 further includes a second spring 39. The second spring 39 is arranged between the top wall of the installation cavity 361 and the first bearing 37 and abuts against the first bearing 37.

[0084] In this embodiment, the second spring 39 is arranged between the top wall of the installation cavity 361 and the first bearing 37. The second spring 39 can be sleeved on the lifting structure 22 to improve the position stability of the second spring 39 and avoid the second spring 39 from falling off or being displaced. The two ends of the second spring 39 are elastically abutted against the top wall of the installation cavity 361 and the first bearing 37 respectively, so as to apply an elastic force to the first bearing 37, making the sliding friction between the first bearing 37 and the transmission member 32 moderate, and ensuring that the transmission member 32 will not be jammed.

[0085] Please refer to Figure 10 , in some embodiments of the present application, at least part of the side wall of the installation cavity 361 forms a limiting surface 363. The limiting surface 363 is a non-circular arc surface. The side wall of the first bearing 37 facing the limiting surface 363 is adapted to the shape of the limiting surface 363 and fits with the limiting surface 363.

[0086] In the technical solution of the foregoing embodiment, the first bearing 37 is limited and fixed in the installation cavity 361 of the upper fixing seat 36, which plays a role in limiting and lubricating the lifting structure 22. In this embodiment, a part of the side wall of the installation cavity 361 is set as a limiting surface 363 that is not an arc surface, which can be a plane, a wavy surface, or a surface of other shapes, and the shape of the outer wall surface of the first bearing 37 facing the limiting surface 363 is set to be adapted to and fit with the limiting surface 363. With such a setting, the rotation of the first bearing 37 in the installation cavity 361 can be restricted, avoiding the synchronous rotation of the lifting structure 22 and the first bearing 37 when the transmission member 32 rotates and thus failing to achieve the purpose of driving the lifting structure 22 to lift and lower.

[0087] Please refer to Figure 5 and Figure 10 , in some embodiments of the present application, a positioning groove 362 is provided in the installation cavity 361, and part of the first bearings 37 are limited and fixed in the positioning groove 362. Among them, the notch of the positioning groove 362 faces the bottom wall of the accommodating cavity 13. By fixing the first bearing 37 in the positioning groove 362, it is possible to prevent the first bearing 37 from rising together with the lifting structure 22 when the lifting structure 22 rises, so that the first bearing 37 cannot play the role of limiting and lubricating.

[0088] In addition, in some embodiments, the surface of the first bearing 37 facing the bottom wall of the accommodating cavity 13 can be in contact with the transmission member 32, so that the transmission member 32 can be used to restrict the downward sliding of the first bearing 37, ensuring that the first bearing 37 does not move up and down with the lifting structure 22 when the lifting structure 22 moves up and down, thereby better playing the role of limiting and lubricating.

[0089] With reference to Figure 9 and Figure 10 , in some embodiments of the present application, a part of the outer peripheral surface of the lifting structure 22 is a plane, and a part of the inner surface of the inner ring of the first bearing 37 is a plane. The plane of the first bearing 37 is arranged opposite to the plane of the lifting structure 22 so that the first bearing 37 is in limiting cooperation with the lifting structure 22. This setting method can use the relatively arranged planes to limit the lifting structure 22 by the first bearing 37 to prevent the lifting structure 22 from rotating. And the contour of a part of the outer peripheral surface of the lifting structure 22 remains an arc contour, so that the external threads in this part of the area are relatively complete, ensuring a stable threaded meshing connection between the lifting structure 22 and the transmission member 32, and ensuring that the transmission member 32 can stably drive the lifting structure 22 to lift and lower.

[0090] Please refer to Figure 9, in some embodiments of the present application, the side wall of the upper fixing seat 36 is convexly provided with a mounting portion 364, and the driving member 31 is arranged on the mounting portion 364. With such a setting, that is, using the upper fixing seat 36 as the positioning basis of the driving module 30, the stable positional relationship and connection relationship between the driving member 31, the transmission member 32, and the lifting structure 22 can be maintained, ensuring a stable transmission relationship to stably drive the lifting structure 22 to lift and lower.

[0091] Please refer to Figures 7 to 9 , in some embodiments of the present application, the laser 100 further includes a second bearing 38. The second bearing 38 is a self-lubricating bearing and is clamped between the transmission member 32 and the bottom wall of the accommodating cavity 13.

[0092] In this embodiment, setting the second bearing 38 between the transmission member 32 and the bottom wall of the accommodating cavity 13 means using the second bearing 38 to support the transmission member 32, which can prevent the transmission member 32 from being directly placed on the bottom wall of the accommodating cavity 13, thereby avoiding wear between the transmission member 32 and the bottom wall of the accommodating cavity 13 when the transmission member 32 rotates; and the second bearing 38 is a self-lubricating bearing. When the transmission member 32 rotates relative to the second bearing 38, the transmission member 32 and the second bearing 38 rub against each other, and the material of the self-lubricating bearing will transfer to the surfaces of the transmission member 32 and the second bearing 38 during the friction process, forming a solid lubricating film, thereby effectively preventing wear between the transmission member 32 and the second bearing 38.

[0093] Please refer to Figure 8 , in some embodiments of the present application, the outer side wall of the transmission member 32 is provided with teeth, the driving member 31 is a motor 311, the motor 311 is arranged on one side of the lifting structure 22, and the driving module 30 further includes a transmission gear 312. The transmission gear 312 is sleeved on the output shaft of the motor 311 and meshes with the teeth of the transmission member 32.

[0094] In this embodiment, the driving member 31 is set as the motor 311, and the transmission member 32 is set as a gear with internal threads on the inner wall. A transmission gear 312 is sleeved on the output shaft of the motor 311, and the transmission gear 312 is meshed with the transmission member 32. With such a setting, the output shaft of the motor 311 can be driven to drive the transmission gear 312 to rotate, thereby driving the transmission member 32 to rotate, and then the lifting structure 22 is lifted and lowered. Using a gear transmission structure to drive the transmission member 32 to rotate, the transmission ratio is accurate and the reliability is high, which is convenient for improving the control accuracy of the lifting distance of the lifting structure 22, and the structure of the driving module 30 is compact, which can reduce the volume of the laser 100.

[0095] Please refer to Figure 6 and Figure 9 , in some embodiments of the present application, the laser 100 further includes a position detection module 40 arranged in the accommodating cavity 13 for detecting the height position of the lifting structure 22.

[0096] In the embodiment of the present application, the lifting structure 22 of the laser module 20 can be lifted, so that the heights of the light outlet 234 and the laser focus can be adjusted according to the heights of different processing positions, thereby improving the processing accuracy and processing effect. In addition, before each laser processing, the lifting structure 22 needs to be lifted back to the preset position, that is, the origin position, to calibrate the position of the lifting structure 22 and ensure the position accuracy of the lifting structure 22 during processing. In this embodiment, a position detection module 40 is provided in the laser 100 to detect the position of the lifting structure 22. Among them, the position detection module 40 can detect the real-time height position of the lifting structure 22, and can also be used to detect whether the lifting structure 22 has been lifted back to the preset position, thereby improving the adjustment accuracy of the height of the lifting structure 22. The position detection module 40 can be at least one of a proximity switch, a photoelectric detection switch, a grating scale detection module, a Hall sensor, etc., which is not limited herein.

[0097] Please refer to Figure 6 and Figure 9 , in some embodiments of the present application, the position detection module 40 includes an induction member 41 and a trigger member 42. The induction member 41 is arranged in the accommodation cavity 13; the trigger member 42 is arranged in the accommodation cavity 13 and is fixedly connected to the lifting structure 22; wherein, when the lifting structure 22 rises to the preset position, the trigger member 42 is used to trigger the induction member 41.

[0098] In this embodiment, the position detection module 40 is used to detect whether the lifting structure 22 has been lifted back to the preset position, that is, to judge whether the lifting structure 22 is accurately reset. Among them, the position detection module 40 includes a trigger member 42 and an induction member 41 arranged in the accommodation cavity 13. The induction member 41 can be connected to the housing 10, and the trigger member 42 is arranged on the lifting structure 22, so that the trigger member 42 moves relative to the induction member 41 along with the lifting structure 22. When the lifting structure 22 rises to the preset position, the trigger member 42 will trigger the induction member 41 to make the induction member 41 emit an induction signal, thereby indicating that the lifting structure 22 has been accurately reset.

[0099] Among them, the induction member 41 can be set as a Hall sensor, a photoelectric switch, a proximity switch, etc. For example, the induction member 41 is a Hall sensor, and the trigger member 42 is a magnet. When the trigger member 42 moves up and down with the lifting structure 22, the magnetic field intensity around the Hall sensor changes, for example, from weak to strong or from strong to weak. Taking the magnetic field intensity detected by the Hall sensor when the lifting structure 22 is in the preset position as the trigger condition, the Hall sensor can emit an induction signal when the lifting structure 22 reaches the preset position. If a proximity switch is used as the induction member 41, the trigger member 42 can touch the induction surface of the proximity switch when the lifting structure 22 is in the preset position, so that the proximity switch emits an induction signal.

[0100] Please refer toFigure 6 and Figure 9 In some embodiments of the present application, the trigger member 42 is provided on the top end surface of the lifting structure 22. Such a setting can prevent the setting of the trigger member 42 from affecting the lifting of the lifting structure 22, and can make the sensing member 41 and the trigger member 42 as far away as possible from the bottom opening of the accommodating cavity 13, so as to prevent the position detection module 40 from being contaminated with dust or other impurities and affecting the performance stability. In some embodiments, the trigger member 42 can be arranged to surround the circumference of the optical channel 221, so as to increase the connection area between the trigger member 42 and the lifting structure 22 and improve the connection strength.

[0101] Please refer to Figure 6 and Figure 9 In some embodiments of the present application, the sensing member 41 includes an emitting portion 411 and a receiving portion 412 which are oppositely arranged, and the trigger member 42 includes a fixing portion 421 and a shielding portion 422 which are connected. The fixing portion 421 is connected to the lifting structure 22, and when the lifting structure 22 moves up and down, the shielding portion 422 can enter and exit between the emitting portion 411 and the receiving portion 412.

[0102] In this embodiment, the sensing module includes an emitting portion 411 and a receiving portion 412 which are oppositely arranged, and the trigger member 42 includes a fixing portion 421 and a shielding portion 422 which are connected. The fixing portion 421 is connected to the lifting structure 22. The fixing portion 421 can be fixed on the outer side wall of the lifting structure 22, or the fixing portion 421 can be arranged on the upper end surface of the lifting structure 22; the shielding portion 422 can enter and exit between the emitting portion 411 and the receiving portion 412 when the lifting structure 22 moves up and down, so as to shield or block the signal emitted by the emitting portion 411 received by the receiving portion 412. Among them, it can be that the normal state is that the receiving portion 412 normally receives the signal sent by the emitting portion 411. At this time, the lifting structure 22 is below the preset position, and the shielding portion 422 is located outside the emitting portion 411 and the receiving portion 412; the trigger state is that the receiving portion 412 cannot receive the signal sent by the emitting portion 411. At this time, the lifting structure 22 is at the preset position, and the shielding portion 422 is disposed between the emitting portion 411 and the receiving portion 412; thus arranged, when the receiving portion 412 cannot normally receive the signal sent by the emitting portion 411, the sensing member 41 generates a sensing signal, indicating that the lifting structure 22 has risen to the preset position.

[0103] Among them, the sensing member 41 can be an optoelectronic switch. The emitting portion 411 can emit an optical signal to the receiving portion 412. For example, the normal state is that the receiving portion 412 can receive the optical signal, and the trigger state is that the receiving portion 412 cannot receive the optical signal sent by the emitting portion 411; when the receiving portion 412 cannot normally receive the optical signal sent by the emitting portion 411, the sensing member 41 generates a sensing signal, indicating that the lifting structure 22 has risen to the preset position.

[0104] In addition, the receiving part 412 can also be a Hall sensor. The transmitting part 411 is set as a magnet, and the shielding part 422 is set as a magnetic isolation piece. When the shielding part 422 is disposed between the transmitting part 411 and the receiving part 412, the Hall sensor cannot sense the magnetic field or the sensed magnetic field strength becomes weaker. The normal state can be defined as when the Hall sensor senses a strong magnetic field, that is, when the shielding part 422 is located outside the transmitting part 411 and the receiving part 412; the trigger state can be defined as when the magnetic field strength sensed by the Hall sensor becomes weaker or the magnetic field cannot be sensed, at this time the shielding part 422 is disposed between the transmitting part 411 and the receiving part 412; when the magnetic field strength sensed by the Hall sensor becomes weaker or the magnetic field cannot be sensed, the sensing part 41 generates a sensing signal, indicating that the lifting structure 22 has risen to the preset position.

[0105] Of course, the sensing part 41 can also be of other structural types, such as a microwave sensor, etc., which will not be elaborated here.

[0106] Please refer to Figure 4 , in some embodiments of the present application, the laser module 20 further includes a reflector 28. The reflector 28 is disposed above the lifting structure 22 and on the side of the laser generator 21 to guide the laser emitted by the laser generator 21 into the optical channel 221.

[0107] In this embodiment, the reflector 28 is provided in the laser module 20. The laser generator 21 emits laser substantially in the horizontal direction, and the reflector 28 is located on the light-emitting side of the laser generator 21 and above the lifting structure 22; with such a setting, the reflector 28 is used to change the laser propagation direction, and the laser emitted by the laser generator 21 is introduced into the optical channel 221, so that the laser generator 21 does not need to be disposed above the lifting structure 22, reasonably planning the structural arrangement in the laser 100 and reducing the volume of the laser 100.

[0108] Please refer to Figure 3 , in some embodiments of the present application, the housing 10 includes a first housing 11 and a second housing 12 arranged side by side. The accommodation cavity 13 includes a first chamber 111 in the first housing 11 and a second chamber 121 in the second housing 12. A communication hole 122 for communicating the first chamber 111 and the second chamber 121 is provided between the first housing 11 and the second housing 12; the laser generator 21 is disposed in the first chamber 111 and is oriented towards the communication hole 122, and the reflector 28 and the lifting structure 22 are both disposed in the second chamber 121.

[0109] In this embodiment, the housing 10 includes a first housing 11 and a second housing 12 connected to each other. A first chamber 111 is formed in the first housing 11, and a second chamber 121 is formed in the second housing 12. The first chamber 111 and the second chamber 121 are connected through a communication hole 122 so that the first chamber 111 and the second chamber 121 enclose a receiving cavity 13. Among them, the laser generator 21 of the laser module 20 is arranged in the first chamber 111. The laser generator 21 can be arranged facing the communication hole 122, or the light-emitting part of the laser generator 21 can be inserted into the communication hole 122. The reflector 28 and the lifting structure 22 of the laser module 20 and the driving module 30 of the laser 100 are all arranged on the second housing 12. The reflector 28 is arranged in the second chamber 121, and the reflecting surface of the reflector 28 is placed at approximately 45°, respectively facing the communication hole 122 and the lifting structure 22 located below the reflector 28. With such an arrangement, the laser 100 can form a modular structure, so that the laser generator 21 that does not need to be lifted is combined with the first housing 11 to form an integral structure, and the lifting structure 22 that needs to be lifted is arranged in the second housing 12 and combined with the second housing 12 to form an integral structure, and then the first housing 11 and the second housing 12 are assembled, which improves the assembly convenience and avoids the need to disassemble the entire laser 100 when disassembling and maintaining some structures in the laser 100.

[0110] Please refer to Figure 3 , in some embodiments of the present application, a heat dissipation module 50 is provided in the receiving cavity 13. Specifically, the heat dissipation module 50 can be a water-cooled heat dissipation structure. The water-cooled heat dissipation structure can include a radiator and a water-cooled pipeline. The radiator can be a water tank or other heat dissipation structures, so that at least part of the water-cooled pipeline passes through the receiving cavity 13, and the other part of the water-cooled pipeline is connected to the radiator, so that the heat in the housing 10 can be taken away by the refrigerant in the water-cooled pipeline, and the radiator can quickly dissipate the heat brought out by the refrigerant, so that the refrigerant flowing back into the water-cooled pipeline in the receiving cavity 13 remains at a lower temperature. The heat dissipation module 50 can also be an air-cooled module to drive air flow to dissipate heat from the components in the housing 10 and take away the heat. In some embodiments, the heat dissipation module 50 can also be other heat dissipation structures, or a combination of any two or more of the foregoing heat dissipation structures, which can improve the heat dissipation efficiency of the laser 100 and reduce the damage risk of the laser module 20 and the laser 100.

[0111] Please refer to Figure 3 and Figure 4 , in some embodiments of the present application, an air inlet 112 is opened on the side wall of one end of the receiving cavity 13 away from the reflector 28 and the lifting structure 22. The heat dissipation module 50 includes a heat dissipation fan 51, and the heat dissipation fan 51 is located between the air inlet 112 and the laser generator 21 to drive external air flow into the receiving cavity 13.

[0112] In this embodiment, the heat dissipation module 50 is an air-cooled heat dissipation structure, including a heat dissipation fan 51 for driving the air flow. In the arrangement direction of the laser generator 21 and the lifting structure 22, one end of the housing 10 away from the lifting structure 22 and the reflecting mirror 28 is used as the air inlet end. An air inlet 112 is provided on the side wall of the air inlet end. The heat dissipation fan 51 is arranged at the air inlet end and located between the laser 100 and the air inlet 112. With such an arrangement, the heat dissipation fan 51 can drive the air flow to flow into the accommodation cavity 13, so that the air flow can take away the heat in the accommodation cavity 13 and flow to the outside, quickly cooling the laser module 20 and other structures in the accommodation cavity 13.

[0113] In some embodiments, the housing 10 includes a first housing 11 and a second housing 12 connected to each other. At this time, a ventilation opening 124 can be provided on the partition between the first housing 11 and the second housing 12, so that the air flow driven by the heat dissipation fan 51 can flow into the second housing 12 through the first housing 11, thereby dissipating heat for the lifting structure 22 and the driving module 30 in the second housing 12.

[0114] Please refer to Figure 2 , in some embodiments of the present application, a first heat dissipation hole 123 is provided on the side wall of the accommodation cavity 13 opposite to the air inlet 112; and / or, a second heat dissipation hole 113 is provided on the bottom wall of the accommodation cavity 13, and the second heat dissipation hole 113 is arranged adjacent to the lifting structure 22.

[0115] In this embodiment, a first heat dissipation hole 123 can be provided on the side wall of the accommodation cavity 13 opposite to the air inlet 112. After the heat dissipation fan 51 drives the air flow to flow into the accommodation cavity 13, the air flow can blow towards the other end of the accommodation cavity 13 and be discharged outwards through the first heat dissipation hole 123. In addition, a second heat dissipation hole 113 can also be provided on the bottom wall of the accommodation cavity 13, and the second heat dissipation hole 113 is located at one end away from the air inlet 112, so that the air flow can be discharged downward from the bottom of the accommodation cavity 13. Of course, the first heat dissipation hole 123 and the second heat dissipation hole 113 can be provided at the same time, so that the air flow can flow through various positions in the laser 100 and be discharged from the first heat dissipation hole 123 and the second heat dissipation hole 113 respectively, improving the heat dissipation efficiency.

[0116] Please refer to Figure 11 , in some embodiments of the present application, a surrounding wall 14 is provided in the accommodation cavity 13. The surrounding wall 14 encloses a limiting space 143, and the laser generator 21 is arranged in the limiting space 143.

[0117] In this embodiment, a partition wall 14 is provided in the outer shell 10. The partition wall 14 demarcates a limiting space 143 in the accommodation cavity 13, and one end of the limiting space 143 facing the mirror 28 is open. The laser generator 21 of the laser module 20 is fixed in the limiting space 143, and the light-emitting part of the laser generator 21 can be arranged facing the mirror 28. With such an arrangement, the position stability of the laser generator 21 in the outer shell 10 can be improved, the deviation of the laser generator 21 can be avoided, which may cause the optical path to deflect, and the optical path stability of the laser 100 can be ensured.

[0118] In some embodiments, a cooling fan 51 is provided in the accommodation cavity 13 to drive air flow to dissipate heat from the accommodation cavity 13. At this time, one end of the limiting space 143 facing the air inlet 112 can be open, that is, both ends of the limiting space 143 are through, so that the air flow driven by the cooling fan 51 can enter the limiting space 143 to take away the heat of the laser generator 21, thereby improving the heat dissipation efficiency of the laser generator 21.

[0119] Please refer to Figure 11 , in some embodiments of the present application, at least part of the outer wall of the partition wall 14 facing away from the limiting space 143 is provided with a plurality of heat dissipation teeth 16.

[0120] In this embodiment, a plurality of heat dissipation teeth 16 arranged side by side are provided on at least part of the surface of the partition wall 14 facing away from the limiting space 143. For example, in the following embodiments, the partition wall 14 includes a first plate body 141 and a second plate body 142. The heat dissipation teeth 16 can be provided on the surface of the first plate body 141 or the second plate body 142, or the heat dissipation teeth 16 can be provided on the surfaces of both the first plate body 141 and the second plate body 142. The arrangement of the heat dissipation teeth 16 increases the heat dissipation area of the partition wall 14, so that the heat in the limiting space 143 can be dissipated more quickly through the large-area heat dissipation teeth 16 after being transferred to the partition wall 14, improving the heat dissipation efficiency.

[0121] Please refer to Figure 11 , in some embodiments of the present application, a cooling fan 51 is provided in the laser 100, and the arrangement direction of the plurality of heat dissipation teeth 16 can be substantially perpendicular to the air flow direction of the cooling fan 51, so as to form an air flow channel between two adjacent heat dissipation teeth 16, reduce the hindrance of the heat dissipation teeth 16 to the air flow, and enable the air flow to fully contact each heat dissipation tooth 16, so as to better exchange heat with the heat dissipation teeth 16 and take away the heat of the heat dissipation teeth 16, improving the heat dissipation efficiency.

[0122] In an embodiment of the present application, the heat dissipation module 50 includes a water-cooled heat dissipation structure, and the water-cooled heat dissipation structure at least includes a water-cooled pipeline provided in the accommodation cavity 13, and the water-cooled pipeline is attached to at least part of the surface of the partition wall 14.

[0123] In this embodiment, the heat dissipation module 50 includes a water-cooled heat dissipation structure. The water-cooled heat dissipation structure may include a radiator and a water-cooled pipeline. The radiator may be a water tank or other heat dissipation structures, such that at least part of the water-cooled pipeline passes through the accommodation cavity 13, and the other part of the water-cooled pipeline is connected to the radiator. Thus, the heat in the housing 10 can be taken away by the refrigerant in the water-cooled pipeline, and the radiator can quickly dissipate the heat carried out by the refrigerant, so that the refrigerant flowing back into the water-cooled pipeline in the accommodation cavity 13 remains at a relatively low temperature, and then better absorbs the heat transferred from the accommodation cavity 13 and the limiting space 143 to the surrounding wall 14, improving the heat dissipation efficiency.

[0124] Please refer to Figure 13 , in some embodiments of the present application, the surrounding wall 14 is spaced apart from the bottom wall of the accommodation cavity 13. In this embodiment, it is defined that the accommodation cavity 13 has a top wall and a bottom wall arranged oppositely, and side walls for connecting the top wall and the bottom wall, such that the surrounding wall 14 is connected to the top wall of the accommodation cavity 13 and is spaced apart from the bottom wall of the accommodation cavity 13. With such an arrangement, a heat dissipation space is formed between the surrounding wall 14 and the bottom wall of the accommodation cavity 13, which can enable the heat in the limiting space 143 to be better dissipated into the accommodation cavity 13, improving the heat dissipation efficiency. Additionally, the space below the surrounding wall 14 can be used as an installation space for installing other devices, improving the space utilization rate.

[0125] In some embodiments of the present application, the surrounding wall 14 is spaced apart from at least one side wall of the accommodation cavity 13. With such an arrangement, a heat dissipation space is formed between the surrounding wall 14 and the side wall of the accommodation cavity 13, which can enable the heat in the limiting space 143 to be better dissipated into the accommodation cavity 13, improving the heat dissipation efficiency. Additionally, the space between the surrounding wall 14 and the side wall can be used as an installation space for installing other devices, improving the space utilization rate.

[0126] In some embodiments, the surrounding wall 14 is spaced apart from the bottom wall and part of the side walls of the accommodation cavity 13, which can further improve the heat dissipation efficiency of the surrounding wall 14.

[0127] Please refer to Figure 11 , in some embodiments of the present application, the surrounding wall 14 includes a first plate body 141 and a second plate body 142. The first plate body 141 extends downward from the top wall of the accommodation cavity 13, and the second plate body 142 extends from the lower end of the first plate body 141 towards the side wall of the accommodation cavity 13 and is connected to the side wall. The second plate body 142 is spaced apart from the bottom wall of the accommodation cavity 13.

[0128] With such an arrangement, the surrounding wall 14 is connected to both the top wall and the side wall of the accommodation cavity 13 simultaneously, improving the connection strength between the surrounding wall 14 and the housing 10; and heat dissipation spaces are formed between the first plate body 141 and the side wall of the accommodation cavity 13 and between the second plate body 142 and the bottom wall of the accommodation cavity 13, which can enable the heat in the limiting space 143 to be better dissipated into the accommodation cavity 13, improving the heat dissipation efficiency.

[0129] Please refer to Figure 11 In some embodiments of the present application, the housing 10 further includes a support portion 15. The support portion 15 extends from the surrounding wall 14 towards the bottom wall of the accommodation cavity 13 and is supported on the bottom wall of the accommodation cavity 13.

[0130] In this embodiment, a support portion 15 is provided in the housing 10. One end of the support portion 15 abuts against the bottom wall of the accommodation cavity 13, and the other end abuts against the surrounding wall 14, for supporting the surrounding wall 14, improving the structural strength of the surrounding wall 14, and preventing the surrounding wall 14 from deforming or breaking under the pressure of the laser generator 21 installed in the limiting space 143. It can be understood that the support portion 15 can extend vertically downward from the bottom of the surrounding wall 14, or the support portion 15 can extend obliquely from the surrounding wall 14 to the edge near the bottom wall, avoiding the setting of the surrounding wall 14 from affecting the installation of other devices on the bottom wall, such as the ranging module 60 in the following embodiment, and improving the utilization rate of the space.

[0131] Please refer to Figure 11 and Figure 12 In some embodiments of the present application, an avoidance opening 114 is formed in the bottom wall of the accommodation cavity 13. The laser device 100 further includes a ranging module 60. The ranging module 60 is disposed on the bottom wall of the accommodation cavity 13, and the probe 61 of the ranging module 60 is exposed at the avoidance opening 114.

[0132] In this embodiment, the laser device 100 further includes a ranging module 60 disposed in the accommodation cavity 13. The ranging module 60 can be ultrasonic ranging, laser ranging, contact probe ranging or other structures. The ranging module 60 can only include ranging components, or can also include structures such as a circuit board, for controlling the operation of the ranging components and receiving, processing and transmitting detection signals, etc. Among them, the ranging module 60 can be disposed on the bottom wall of the accommodation cavity 13. An avoidance opening 114 is formed in the bottom wall of the accommodation cavity 13, so that the probe 61 of the ranging module 60 faces the avoidance opening 114 or extends outwards from the avoidance opening 114, so as to be exposed at the position of the avoidance opening 114, for detecting the distance between the laser device 100 and the processing position.

[0133] Please refer to Figure 2 and Figure 3 In some embodiments of the present application, a conductive structure 19 is provided on the side wall of the housing 10. The laser device 100 further includes an adapter board 70 disposed in the accommodation cavity 13. The adapter board 70 is electrically connected to the conductive structure 19 and the laser module 20 respectively.

[0134] In this embodiment, when the laser 100 is applied to the laser device 1, it is electrically connected to the device main body 200 through the conductive structure 19 provided on the side wall of the housing 10 to supply power to the laser module 20 inside the housing 10. Among them, an adapter board 70 is provided in the accommodation cavity 13. The adapter board 70 can be a circuit board or only a device with a conductive function. The conductive structure 19 is passed through the side wall of the housing 10 and electrically connected to the adapter board 70, so that the laser module 20 and other electronic devices in the accommodation cavity 13 can be electrically connected to the adapter board 70, and then power is supplied to each electronic device through the adapter board 70. The adapter board 70 can also be used to receive, process, and transmit data signals, control signals, etc. to achieve information interaction between the laser 100 and the device main body 200.

[0135] With such a setting, there is no need to set wires to connect the external power supply of the laser 100 and the laser module 20. An electrical connection structure 260 can be provided on the device main body 200 of the laser device 1. The electrical connection structure 260 is provided at the installation position of the laser 100. One of the conductive structures 19 is set as a male seat and the other is set as a female seat. The electrical connection structure 260 is set as the other of the male seat and the female seat. An electrical connection relationship can be formed by docking the male seat and the female seat, reducing the use of wires and making the overall structure of the laser device 1 relatively neat.

[0136] Please refer to Figure 2 , in some embodiments of the present application, a connection structure 17 is provided on the side wall of the housing 10 for detachably fixing the laser 100 to the device main body 200 of the laser device 1. Among them, the connection structure 17 can be a mounting hole, a buckle, a dovetail groove, a magnet, etc. The way the laser 100 is mounted on the device main body 200 can be plug-in connection, snap connection, bolt connection, magnetic attraction connection, etc., which is not limited here. In some embodiments, a conductive structure 19 and / or an air inlet interface 18 can be provided on the side wall of the housing 10, so that the laser 100 can be electrically connected or the air path can be connected when it is mounted on the device main body 200, without the need for electrical connection operation and / or gas connection operation before or after mounting the laser 100, improving the disassembly and assembly convenience of the laser 100.

[0137] Please refer to Figure 14 and Figure 15 , in some embodiments of the present application, an air flow inlet 222 communicating with the optical channel 221 is opened on the side wall of the lifting structure 22. The air flow inlet 222 is located between the focusing lens module 24 and the outlet of the optical channel 221.

[0138] In the embodiment of the present application, an air flow inlet 222 is formed on the side wall of the optical channel 221 between the outlet of the optical channel 221 and the focusing lens module 24. The air flow inlet 222 can be used to connect an air supply mechanism 300 such as an air pump. With such a setting, when the laser 100 is applied to the laser device 1, the air supply mechanism 300 such as an air pump can be connected to the air flow inlet 222, and the air supply mechanism 300 can drive the air flow to flow into the optical channel 221 through the air flow inlet 222. Since the upper part of the optical channel 221 is blocked by the focusing lens module 24, the air flow can only flow outwards from the outlet of the optical channel 221. Thus, the air flow can be used to blow away impurities such as dust and oil stains in front of the outlet of the optical channel 221, preventing the dust and other impurities from entering the optical channel 221 and adhering to the optical lens, and avoiding affecting the laser emission. At the same time, the air flow can also blow away the dust and other impurities in the processing area towards which the outlet of the optical channel 221 faces, avoiding affecting the laser processing or ranging. In some embodiments, the air flow inlet 222 is closer to the outlet of the optical channel 221. The air flow 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.

[0139] It should be noted that, in some embodiments, a window mirror 252 is further provided in the laser 100 and is disposed between the focusing lens module 24 and the outlet of the optical channel 221, for blocking dust and other sundries from entering the optical channel 221 and adhering to the focusing lens 241. The air flow inlet 222 can be formed on the side wall of the lifting structure 22 between the outlet of the optical channel 221 and the window mirror 252.

[0140] Please refer to Figure 15 , in some embodiments of the present application, the laser 100 further includes a light output head 23. One end of the light output head 23 is inserted into the optical channel 221, and the light output head 23 is provided with a through hole 233 communicating the optical channel 221 and the air flow inlet 222.

[0141] In this embodiment, an optical head 23 is provided in the laser 100. The optical head 23 is inserted into the optical channel 221 from the end opening of the optical channel 221, and a through hole 233 is formed in the optical head 23 and penetrates along the extending direction of the optical channel 221. One end of the through hole 233 far from the focusing lens module 24 is opened to form an optical outlet 234, so that the laser generated by the laser 100 can be emitted outwards via the optical channel 221 and the through hole 233. In addition, the through hole 233 is communicated with the air flow inlet 222. It can be such that the length of the part of the optical head 23 inserted into the optical channel 221 does not exceed the distance from the air flow inlet 222 to the end opening of the optical channel 221, that is, the side wall of the optical head 23 is not disposed opposite to the air flow inlet 222, so as not to block the air flow inlet 222; or in the following embodiment, an air inlet 235 is formed in the side wall of the optical head 23. Even if the optical head 23 is inserted to the position of the air flow inlet 222, the air flow inlet 222 and the through hole 233 can be communicated through the air inlet 235; with such a setting, the air flow can enter the through hole 233 from the air flow inlet 222 and then be blown out from the optical outlet 234, playing a role in dust removal.

[0142] Since the optical head 23 is inserted into the optical channel 221, obviously the cross-sectional dimension of the through hole 233 is smaller than that of the optical channel 221, that is, the flow channel of the air flow is narrowed by the setting of the optical head 23, which can increase the flow velocity and impact force of the air flow when flowing out from the optical outlet 234 and improve the dust removal effect.

[0143] In this embodiment, the optical head 23 can be fixed to the optical channel 221 by means of interference fit between the optical head 23 and the optical channel 221, or by screwing the optical head 23 to the optical channel 221, or by means of clamping, bonding, etc., which is not limited herein.

[0144] With reference to Figure 15 and Figure 16 , in some embodiments of the present application, the side wall of the optical 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 233 is formed.

[0145] In this embodiment, an air inlet 235 communicating with the through hole 233 is formed in the side wall of the light emitting head 23, and the light emitting head 23 is inserted at least to the position of the air flow inlet 222. At this time, the side wall of the light emitting head 23 is disposed opposite to the air flow inlet 222. Among them, at least a part of the air inlet 235 can be disposed opposite to the air flow inlet 222 to communicate the air flow inlet 222 with the through hole 233. Or, in the following embodiment, a groove 236 is formed in the outer side wall of the light emitting head 23, and the air inlet 235 is formed in the groove wall of the groove 236. The setting of the groove 236 is to form an air guiding channel between the side walls of the light emitting head 23 and the optical channel 221, so that the air flow inlet 222 and the air inlet 235 are communicated through the air guiding channel. In both cases, 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 a setting, 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 into a deeper position of the optical channel 221, improving the connection strength between the light emitting head 23 and the optical channel 221.

[0146] Please refer to Figure 16 and Figure 17 , in some embodiments of the present application, a groove 236 is recessed in the area where the light emitting head 23 is disposed opposite to the air flow inlet 222. The groove 236 surrounds at least a part of the through hole 233 in the circumferential direction, and the air inlet 235 intersects with the groove 236.

[0147] In this embodiment, a groove 236 is formed in the outer side wall of the light emitting head 23, and the air inlet 235 intersects 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 side walls of the light emitting head 23 and the optical channel 221. The air flow inlet 222 and the air inlet 235 are communicated through the air guiding channel, so that the air flow can flow along the groove 236 to the air inlet 235 to enter the through hole 233 after being introduced from the air flow inlet 222. The groove 236 is generally disposed to surround the through hole 233 in the circumferential direction, and can only partially surround the circumferential direction or completely surround the through hole 233; the setting of the groove 236 does not need 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, so that the installation of the light emitting head 23 is more convenient and flexible.

[0148] 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. Or, 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 side wall of the light emitting head 23. The first groove and the second groove are opposite to each other to jointly form an air groove.

[0149] Please refer to Figure 17 , in some embodiments of the present application, at least two air inlets 235 are provided on the side wall of the light emitting head 23, and the air inlets 235 are arranged at intervals along the circumferential direction of the through hole 233.

[0150] In this embodiment, at least two air inlets 235 are provided on the side wall of the light emitting head 23, so that when any air inlet 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 a setting, 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 when only one air inlet 235 is provided, it is necessary to ensure that the air inlet 235 is accurately opposite to the air flow inlet 222.

[0151] In some embodiments, a groove 236 is provided on the outer side wall of the light emitting head 23. At this time, at least two air inlets 235 arranged at intervals along the circumferential direction of the optical channel 221 can be provided on the groove wall of the groove 236. With such a setting, the air flow entering the groove 236 from the air flow inlet 222 can be dispersed into the through hole 233 through the air inlets 235 in different orientations, so that air flows out from the entire area of the light emitting port 234, improving the dust removal effect.

[0152] Please refer to Figure 15 and Figure 16 , in some embodiments of the present application, the light emitting head 23 includes a plug-in portion 231 and a limiting portion 232. The plug-in 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 lifting structure 22, and the light emitting port 234 penetrates through the plug-in portion 231 and the limiting portion 232.

[0153] In this embodiment, the light emitting head 23 includes a plug-in portion 231 and a limiting portion 232 which are oppositely arranged. The cross-sectional dimension of the limiting portion 232 is larger than that of the optical channel 221; the plug-in portion 231 is inserted into the optical channel 221, and the limiting portion 232 is located outside the lifting structure 22 and abuts against the end face of the lifting 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 caused by the light emitting head 23; and the user can disassemble and assemble the light emitting head 23 by holding the limiting portion 232, improving the convenience of disassembling and assembling the light emitting head 23.

[0154] In some embodiments of the present application, a sealing member (not shown) is clamped between the limiting portion 232 and the end face of the lifting structure 22, and the sealing member is arranged to surround the optical channel 221 in the circumferential direction.

[0155] In this embodiment, a seal is provided 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 lifting structure 22, so as to avoid air leakage. Among them, the seal can be sealant injected between the limiting portion 232 and the end face of the lifting structure 22, or it can be a sealing ring 230 made of elastic materials such as rubber. Using a sealing ring 230 made of elastic materials such as rubber can not only cause the seal to elastically deform and closely adhere to the end faces of the limiting portion 232 and the lifting structure 22, but also make the optical head 23 detachable.

[0156] In some embodiments, a fixing groove can be opened on either the end face of the limiting portion 232 or the end face of the lifting structure 22. The seal is arranged in the fixing groove, and part of the seal protrudes from the notch of the fixing groove. Such an arrangement can improve the position and shape stability of the seal, avoid deformation or displacement of the seal, and ensure that the seal plays a good sealing role.

[0157] Please refer to Figure 15 and Figure 16 , in some embodiments of the present application, the laser 100 further includes a window mirror module 25, and the window mirror module 25 is disposed on the light output side of the focusing mirror module 24 with a gap therebetween.

[0158] In this embodiment, a window mirror module 25 is also provided in the laser 100 on the light output 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 debris from passing through the optical channel 221 and adhering to the focusing mirror 241.

[0159] In some embodiments, an air flow inlet 222 communicating with the optical channel 221 is opened on the side wall of the lifting structure 22. The air flow inlet 222 is located on the side wall of the lifting structure 22 on the side of the window mirror module 25 facing away from the focusing mirror module 24, so as to avoid the window mirror module 25 blocking the outward flow of air.

[0160] In an embodiment of the present application, the laser 100 further includes an optical head 23 inserted into one end of the optical channel 221, and the optical head 23 abuts against the window mirror module 25. Such an arrangement can use the optical head 23 to limit the window mirror module 25, avoid the window mirror module 25 moving towards the light output port 234 side in the optical channel 221, and prevent the window mirror module 25 from falling out of the optical channel 221. When the air flow inlet 222 is provided in the lifting structure 22, it can also prevent the window mirror module 25 from moving to the position of the air flow inlet 222 or being blocked between the air flow inlet 222 and the light output port 234, resulting in the inability of air to blow out from the light output port 234.

[0161] Combined with reference to Figure 15And Figure 16 In some embodiments of the present application, in one embodiment of the present application, a limiting groove 237 is recessed in the end face of the light emitting head 23 facing the window mirror module 25, and the window mirror module 25 is disposed in the limiting groove 237.

[0162] In this embodiment, the limiting 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 limiting groove 237, and the window mirror module 25 is disposed in the limiting groove 237 so that the light emitting head 23 and the window mirror module 25 are connected to each other. Based on this structural setting, after the window mirror module 25 is installed in the limiting groove 237 of the light emitting head 23, the light emitting head 23 can be inserted into the optical channel 221 together with the window mirror module 25, or the light emitting head 23 and the window mirror module 25 can be removed from the optical channel 221 together, improving the disassembly and assembly convenience 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 light emitting head 23 being inserted too deeply when the window mirror module 25 is first inserted and then the light emitting head 23 is inserted.

[0163] It should be noted that in this embodiment, the window mirror module 25 can be adhesively connected, snap-connected or pressed into the limiting groove 237.

[0164] Please refer to Figure 16 In some embodiments of the present application, the window mirror module 25 includes a window mirror barrel 251 and a window mirror 252 disposed in the window mirror barrel 251. Among them, the window mirror barrel 251 is a cylindrical structure with both ends penetrating, and 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 disposed in the optical channel 221, or the window mirror module 25 can be disposed in the limiting groove 237 of the light emitting head 23 as in the above embodiment; such a setting can avoid the side wall of the light emitting head 23 or the optical channel 221 directly contacting 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 limiting groove 237 can adopt threaded connection, set screw tightening or other connection methods, which are not limited herein.

[0165] In one embodiment of the present application, the laser 100 further includes an adapter 27 and a trachea joint 26. The adapter 27 is disposed on the outer wall of the lifting structure 22 and covers the air flow inlet 222. The adapter 27 is provided with a connection hole 271 opposite to the air flow inlet 222, and the trachea joint 26 is inserted into the connection hole 271.

[0166] Please refer to Figure 15 In some embodiments of the present application, the focusing lens module 24 includes a focusing lens barrel 242 and a focusing lens 241 disposed in the focusing lens barrel 242, and the focusing lens barrel 242 is disposed in the optical channel 221.

[0167] 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 convexly provided 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.

[0168] With reference to Figure 2 and Figure 16 , 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 lifting structure 22 and covers the air inlet 222. The adapter 27 is provided with a connection hole 271 disposed opposite to the air inlet 222, and the air pipe joint 26 is inserted into the connection hole 271.

[0169] In this embodiment, the adapter 27 is covered on the outer wall of the lifting structure 22. The adapter 27 is covered at the air inlet 222 and is provided with a connection hole 271 communicating with the air inlet 222; then one end of the air pipe joint 26 is inserted into the connection hole 271 to communicate the air pipe joint 26 with the air inlet 222, so as to facilitate connecting the air pipe 250 to connect the air inlet 222 with the air supply mechanism 300. The setting of the adapter 27 makes the air pipe joint 26 have a suitable insertion position, avoiding the side wall of the lifting structure 22 being too thin to cause the air pipe joint 26 to be unable to be stably inserted into the air inlet 222, and at the same time avoiding the air pipe joint 26 being inserted into the optical channel 221 to affect the emission of the laser. And between the adapter 27 and the lifting structure 22, bolt connection, snap connection, bonding and magnetic attraction connection and other methods can be adopted. In addition, an installation plane 223 can be provided on the outer side wall of the lifting 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 lifting structure 22.

[0170] Please refer to Figure 1 , the present application also proposes a laser device 1. The laser device 1 includes a device main body 200 and the laser 100 in any of the foregoing embodiments. The specific structure of the laser 100 refers to any of the foregoing embodiments and will not be elaborated here. The laser 100 is disposed on the device main body 200. The laser device 1 can be a laser processing device such as a laser engraving machine, a laser marking machine, a laser cutting machine, and a laser cutting machine.

[0171] Since the laser device 1 proposed in this application applies all the technical solutions of the foregoing embodiments, it has at least all the beneficial effects brought by the foregoing all technical solutions, which will not be elaborated one by one here.

[0172] Please refer to Figure 18 and Figure 19 , in some embodiments of the present application, the device main body 200 has a mounting position, the mounting position is provided with a power connection structure 260, the laser 100 is arranged in the mounting position, and the power connection structure 260 is docked and electrically connected with the conductive structure 19 on the outer shell 10 of the laser 100.

[0173] In this embodiment, there is no need to set a wire connection between the laser 100 and the device main body 200. A conductive structure 19 is arranged on the outer surface of the laser 100, and the conductive structure 19 is set as one of a male seat and a female seat. The mounting position of the device main body 200 is provided with a power connection structure 260, and the power connection structure 260 is the other of the male seat and the female seat. When the laser 100 is installed in the mounting position, the conductive structure 19 and the power connection structure 260 are docked to form an electrical connection relationship, and there is no need to perform wiring operations before or after installing the laser 100, which improves the disassembly and assembly convenience of the laser 100; and reduces the use of wires, making the overall structure of the laser device 1 relatively tidy.

[0174] In the embodiments of the present application, a mounting structure 290 can be arranged at the mounting position, and a connection structure 17 is arranged on the side wall of the laser 100. The matching manner between the mounting structure 290 and the connection structure 17 can be at least one of plugging, snap connection, bolt connection, and magnetic attraction connection, etc.; optionally, two plugging strips are respectively arranged on two opposite sides of the mounting position as the mounting structure 290, and two oppositely arranged plugging grooves are arranged on the outer shell 10 of the laser 100. The two plugging strips correspond to the two plugging grooves one by one, and the plugging strips are inserted into the plugging grooves, so that the laser 100 is installed in the mounting position. In addition, two or more matching manners can also be set to install the laser 100 in the mounting position. For example, on the basis of the foregoing plugging fit, at least one of bolt connection, magnetic attraction connection, and snap connection can be further set to improve the connection strength.

[0175] Please refer to Figures 18 to 20 , in some embodiments of the present application, the device main body 200 is provided with a back plate 210, an air intake channel is formed in the back plate 210, an air path interface 220 communicating with the air intake channel is opened on the mounting surface of the back plate 210, the laser 100 is arranged on the mounting surface, and the air intake interface 18 opened on the outer shell 10 of the laser 100 is arranged opposite to and communicated with the air path interface 220.

[0176] In some embodiments, an air inlet 222 is provided in the optical channel 221 of the laser 100. An air intake interface 18 is provided on the housing 10 of the laser 100, and an air duct 250 is provided to connect the air intake interface 18 and the air inlet 222. A backplane 210 for mounting the laser 100 is provided on the device body 200 of the laser device 1, with one side plate surface of the backplane 210 serving as the mounting surface for mounting the laser 100. An air intake channel is provided in the backplane 210, and an air path interface 220 communicating with the air intake channel is provided on the mounting surface of the backplane 210; wherein, the air intake channel can penetrate through both side plate surfaces of the backplane 210, or the other end of the air intake channel far from the air path interface 220 can be opened on any one of the side surfaces between the two side plate surfaces. The other end opening of the air intake channel far from the air path interface 220 can be used to connect to a gas supply mechanism 300 such as an air pump; when the laser 100 is mounted on the mounting surface of the backplane 210, the air intake interface 18 provided on the housing 10 of the laser 100 is disposed opposite to and in communication with the air path interface 220 on the mounting surface, so that the laser 100 is communicated with the gas supply mechanism 300 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 can be 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.

[0177] Please refer to Figure 19 and Figure 20 , in some embodiments of the present application, a sealing ring 230 is clamped between the housing 10 and the backplane 210, and the sealing ring 230 is arranged to surround the circumference of the air path interface 220.

[0178] In this embodiment, a sealing ring 230 is provided between the laser 100 and the backplane 210, and the sealing ring 230 is arranged to surround the circumference of the air path interface 220. The sealing ring 230 can be made of an elastic material such as rubber, silica gel, or silicone rubber, so that when the laser 100 and the backplane 210 clamp the sealing ring 230, the sealing ring 230 can undergo elastic deformation to closely adhere to the backplane 210 and the laser 100 respectively, so as to form a sealed cavity between the sealing ring 230, the laser 100, and the backplane 210, improving the sealing performance between the air intake interface 18 and the air path interface 220 and avoiding air leakage problems.

[0179] Among them, the sealing ring 230 can be fixed to the backplane 210 or can be fixed to the housing 10 of the laser 100, which is not limited herein.

[0180] Please refer to Figure 20 , in some embodiments of the present application, the mounting surface is recessed with a fixing groove, the air intake interface 18 is provided on the bottom wall of the fixing groove, and the sealing ring 230 is disposed in the fixing groove and protrudes from the mounting surface.

[0181] In this embodiment, the sealing ring 230 is fixed on the back plate 210 of the device main body 200. Thus, when other lasers 100 need to be replaced, it is not necessary to provide a sealing ring 230 on each laser 100, reducing the use of the sealing ring 230. Among them, a fixing groove is recessed in the mounting surface of the back plate 210, the gas path interface 220 is opened on the bottom wall of the fixing groove, and the sealing ring 230 is installed in the fixing groove and arranged around the gas path interface 220. Thus, the fixing groove is used to limit the position of the sealing ring 230, preventing the sealing ring 230 from being displaced and unable to surround the gas path interface 220 and the intake interface 18; in addition, part of the sealing ring 230 protrudes from the fixing groove, ensuring that when the laser 100 is installed on the mounting surface, the laser 100 can be in contact with the sealing ring 230, thereby having good sealing performance.

[0182] Please refer to Figure 19 and Figure 20 , in some embodiments of the present application, the device main body 200 further includes a locking member 240, and the locking member 240 fixes the sealing ring 230 to the back plate 210.

[0183] In this embodiment, a locking member 240 is provided on the device main body 200, and the locking member 240 acts between the back plate 210 and the sealing ring 230 to fix the sealing ring 230 on the back plate 210. The locking member 240 can be an adhesive structure, such as glue, double-sided tape or Velcro, etc.; it can also be a screw or a detachable structure such as a pressing member for pressing the outer or inner ring of the sealing ring 230. Using the locking member 240 to fix the sealing ring 230 can improve the connection strength between the sealing ring 230 and the back plate 210 and reduce the risk of the sealing ring 230 falling off and being displaced.

[0184] Please refer to Figure 20 , in some embodiments of the present application, the locking member 240 includes a locking portion and a pressing portion connected to each other. The cross-sectional dimension of the pressing portion is larger than that of the locking portion, and the locking member 240 is also provided with an air outlet hole penetrating through the locking portion and the pressing portion;

[0185] A contact portion 331 protrudes from the inner ring of the sealing ring 230. The locking portion passes through the sealing ring 230 and is inserted into the gas path interface 220 to be fixedly connected to the back plate 210, and the pressing portion presses the contact portion 331 against the back plate 210.

[0186] In this embodiment, the sealing ring 230 is pressed tightly against the backplane 210 by the locking member 240. Specifically, the locking member 240 includes a connected locking portion and a crimping portion. The locking portion can pass through the sealing ring 230 and be inserted into the gas path interface 220, and is fixedly connected to the backplane 210. The crimping portion is disposed outside the gas path interface 220. An abutting portion 331 is provided on the inner ring of the sealing ring 230. The abutting portion 331 can be arranged to surround the inner ring of the sealing ring 230, or can be arranged at partial positions on the inner ring, such as at least two spaced abutting portions 331 arranged along the inner ring. When the locking portion of the locking member 240 is inserted into the gas path interface 220, the crimping portion of the locking member 240 presses on the abutting portion 331 of the sealing ring 230, so that the sealing ring 230 can be tightly fixed on the backplane 210. At the same time, an air vent hole penetrating the locking portion and the crimping portion needs to be opened on the locking member 240 to avoid blocking the gas path interface 220. The connection between the locking portion of the locking member 240 and the gas path interface 220 can be an interference fit, or can be bonding or threaded connection, etc., which is not limited herein.

[0187] When using the locking member 240 of this embodiment to fix the sealing ring 230, the locking member 240 can be hidden inside the sealing ring 230, so as to avoid the laser 100 being scratched by the locking member 240 or the laser 100 not being able to closely adhere to the sealing ring 230 when the laser 100 is fixed to the backplane 210.

[0188] Please refer to Figure 19 , in some embodiments of the present application, the other end opening of the intake passage away from the gas path interface 220 is opened on the top surface of the backplane 210.

[0189] In this embodiment, the opening of the end of the intake passage for connecting the air supply structure is opened on the top surface of the backplane 210. With such a setting, the trachea 250 connecting the air supply structure and the intake passage can be connected to the top of the backplane 210, which can be away from the processing position and the laser, and is convenient for the connection of the trachea 250.

[0190] Please refer to Figure 18 , in some embodiments of the present application, the device main body 200 is provided with a translation assembly 270, the backplane 210 is disposed on the translation assembly 270, and the device main body 200 is further provided with a drag chain 280. One end of the drag chain 280 is connected to the translation assembly 270, and the trachea 250 connecting the air supply structure and the intake passage passes through the drag chain 280.

[0191] In this embodiment, a translation component 270 is provided in the device main body 200. The translation component 270 can be used to drive the backplane 210 to drive the laser 100 to translate in one direction, or the translation component 270 can be set as a combination of translation mechanisms in two mutually perpendicular directions. For example, defining the X direction and the Y direction that are mutually perpendicular, the translation component 270 can be used to drive the backplane 210 and the laser 100 to translate in the X direction or the Y direction, or the translation mechanism can include a connected X translation mechanism and a Y translation mechanism. The backplane 210 and the laser 100 are arranged on the X translation mechanism, and the X translation mechanism is used to drive the backplane 210 and the laser 100 to translate in the X direction. At the same time, the X translation mechanism is arranged on the Y translation mechanism, and the Y translation mechanism is used to drive the X translation mechanism to drive the backplane 210 and the laser 100 to translate in the Y direction.

[0192] The setting of the translation component 270 enables the laser 100 to move to different positions for processing. In addition, a cable carrier 280 is provided in the device main body 200. The cable carrier 280 extends along the translation direction. One end of the cable carrier 280 is fixed on the track of the translation component 270, and the other end is fixed on the sliding part of the translation component 270. The air pipe 250 connecting the air supply structure and the air inlet channel is passed through the cable carrier 280, so as to limit and protect the air pipe 250, avoid the air pipe 250 from being scattered and affecting the movement of the laser 100, and avoid damage to the air pipe 250.

[0193] 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 under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A laser, characterized in that: include: A housing, wherein a receiving cavity is formed in the housing, and a bottom of the receiving cavity has an opening; A laser module, the laser module comprising a laser generator, a lifting structure and a focusing mirror module, the laser generator is arranged in the accommodating cavity, the lifting structure is penetrated through the bottom opening of the accommodating cavity, an optical channel is formed in the lifting structure, the focusing mirror module is arranged in the optical channel, and the laser emitted by the laser generator is emitted through the optical channel; as well as A driving module is connected to the lifting structure in a transmission manner to drive the lifting structure to move up and down.

2. The laser according to claim 1, characterized in that The lifting structure and the optical channel both extend linearly along the lifting direction, and the center line of the optical channel is parallel to the optical axis of the laser after entering the optical channel.

3. The laser according to claim 1, characterized in that A first transmission part is provided on the outer wall of the lifting structure, and the driving module includes a driving member and a transmission member arranged in the accommodating cavity. The transmission member is provided with a second transmission part. The first transmission part cooperates with the second transmission part in transmission. The driving member is connected to the transmission member to drive the transmission member to move so as to lift the lifting structure.

4. The laser according to claim 3, characterized in that The first transmission part includes external thread teeth, the transmission member is provided with a screw hole, the second transmission part includes internal thread teeth provided in the screw hole, the internal thread teeth are meshed with the external thread teeth, the lifting structure is passed through the screw hole, and the driving member is used to drive the transmission member to rotate.

5. The laser according to claim 4, characterized in that The transmission member further comprises a third transmission part and a first protruding part connected to each other, the third transmission part is provided with the screw hole and is transmission-connected to the driving member, and the first protruding part is protruding from the lower surface of the third transmission part; The laser further comprises an anti-backlash nut and a first spring, the anti-backlash nut comprises an abutment portion and a second protruding portion connected to each other, the abutment portion is threadedly sleeved on the lifting structure, the second protruding portion is protruding on a surface of the abutment portion facing the transmission member, the second protruding portion cooperates with the first protruding portion, and the first spring is clamped between the abutment portion and the third transmission portion; When the transmission member rotates, the first protrusion can act on the second protrusion to rotate the anti-backlash nut.

6. The laser according to claim 5, characterized in that The laser also includes a lower fixing seat and an upper fixing seat; The lower fixing seat is arranged below the bottom wall of the housing, and an accommodating cavity is formed in the lower fixing seat, and the anti-backlash nut is located in the accommodating cavity; The upper fixing seat is arranged in the accommodating cavity and fixed to the bottom wall of the accommodating cavity, and is enclosed with the bottom wall of the accommodating cavity to form an installation cavity, and the lifting structure is arranged through the accommodating cavity, the lower fixing seat, the installation cavity and the upper fixing seat; The side wall of the upper fixing seat is provided with an opening connected to the installation cavity. The transmission member is located in the installation cavity and spaced apart from the side wall of the installation cavity. Part of the transmission member is exposed from the opening to be transmission-connected to the driving member.

7. The laser according to claim 6, characterized in that The laser further includes a first bearing, which is fixed to the mounting cavity and sleeved on the lifting structure; The laser further includes a second spring, which is disposed between the top wall of the mounting cavity and the first bearing and abuts against the first bearing; And / or, at least part of the side wall of the installation cavity forms a limiting surface, the limiting surface is a non-arc surface, and the side wall of the first bearing facing the limiting surface is adapted to the shape of the limiting surface and fits the limiting surface; And / or, a positioning groove is provided in the installation cavity, and part of the first bearing is fixed in the positioning groove; And / or, part of the outer peripheral surface of the lifting structure is a plane, part of the inner ring surface of the first bearing is a plane, and the plane of the first bearing is opposite to the plane of the lifting structure, so that the first bearing and the lifting structure are limitedly matched.

8. A laser as claimed in any one of claims 1 to 7, characterized in that The laser module further includes a reflector, which is disposed above the lifting structure and located on the side of the laser generator to guide the laser emitted by the laser generator into the optical channel; The housing comprises a first shell and a second shell arranged side by side, the accommodating cavity comprises a first chamber in the first shell and a second chamber in the second shell, and a connecting hole connecting the first chamber and the second chamber is provided between the first shell and the second shell; The laser generator is arranged in the first chamber and faces the connecting hole, and the reflecting mirror and the lifting structure are both arranged in the second chamber.

9. A laser as claimed in any one of claims 1 to 7, characterized in that The side wall of the lifting structure is provided with an air flow inlet connected to the light channel, and the air flow inlet is located between the focusing mirror module and the outlet of the light channel.

10. The laser according to claim 9, characterized in that The laser further comprises a light output head, 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, and an air inlet connected to the air flow inlet and the through hole; And / or, the laser further includes an adapter and an air pipe joint, the adapter is arranged on the outer wall of the lifting structure having the air flow inlet, the adapter is provided with a connecting hole which is arranged opposite to and passes through the air flow inlet, and the air pipe joint is inserted into the connecting hole.

11. The laser according to claim 10, characterized in that When the laser includes a light output head, a groove is formed in an area of ​​the outer wall of the light output head opposite to the air flow inlet, the groove surrounds at least a portion of the through hole in a circumferential direction, 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.

12. A laser device, characterized in that: The laser device comprises a device body and the laser as claimed in any one of claims 1 to 11, wherein the laser is arranged in the device body.

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