Laser cleaning focusing mechanism and laser cleaning device

By designing a laser cleaning focusing mechanism, the position and angle of the laser are adjusted using a flip angle adjustment component and multiple adjustment components. This solves the problem that existing devices cannot adjust the laser incident angle, improves the cleaning effect, and reduces workpiece damage.

CN223465257UActive Publication Date: 2025-10-24RAYCUS FIBER LASER TECH CO LTD
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Patent Information

Application Number
CN202422852572.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-21
Publication Date
2025-10-24
Estimated Expiration
2034-11-21

AI Technical Summary

Technical Problem

Existing laser cleaning devices cannot adjust the laser incident angle, resulting in damage to the workpiece or poor cleaning effect.

Method used

A laser cleaning focusing mechanism was designed, which included a flip angle adjustment component. The flip angle of the laser was adjusted by a flip plate and a rotating shaft. The laser was moved in different directions by combining multiple adjustment components to achieve precise adjustment of the laser incident angle.

Benefits of technology

It enables flexible adjustment of the laser incident angle during laser cleaning, improving the cleaning effect and reducing damage to the workpiece.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a laser cleaning focusing mechanism and a laser cleaning device, and belongs to the technical field of laser cleaning. The overturning angle adjusting assembly comprises a rotating shaft and an overturning plate, and one end, in the first direction, of the overturning plate is connected with the rotating shaft. A mounting groove for mounting the laser is formed in the overturning plate, and the overturning plate is suitable for rotating around the rotating shaft to drive the laser to overturn so as to adjust the overturning angle of the laser. According to the laser cleaning focusing mechanism, the overturning angle of the laser device can be adjusted through the overturning angle adjusting assembly, then the incident angle of the laser emitted by the laser device is adjusted, focusing in the laser cleaning process is achieved, the laser cleaning effect is guaranteed, and meanwhile damage to the surface of a workpiece is reduced.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laser cleaning, in particular to a laser cleaning focusing mechanism and a laser cleaning device. BACKGROUND

[0002] The process of laser cleaning depends on the characteristics of the light pulses generated by the laser. The interaction between the high-intensity light beam, the short pulse laser and the pollution layer leads to a photophysical reaction, thereby achieving the cleaning effect. During the laser cleaning operation, the accuracy of positioning and focusing directly affects the quality and efficiency of laser cleaning.

[0003] In order to facilitate the laser cleaning machine to clean the surfaces of different workpieces, a focusing device is usually provided. However, in the related art, the focusing device for laser cleaning can only adjust the vertical and horizontal directions, and cannot adjust the angle of laser cleaning. When the incidence angle of the laser is too large or too small during the laser cleaning process, it is easy to cause damage to the workpiece or poor cleaning effect. CONTENT OF THE INVENTION

[0004] Embodiments of the present application provide a laser cleaning focusing mechanism and a laser cleaning device, which can adjust the incidence angle of the laser during the laser cleaning process, ensure the laser cleaning effect, and reduce damage to the workpiece.

[0005] In a first aspect, embodiments of the present application provide a laser cleaning focusing mechanism, comprising a flip angle adjusting assembly;

[0006] The flip angle adjusting assembly comprises a pivot shaft and a flip plate, one end of the flip plate in a first direction is connected to the pivot shaft;

[0007] The flip plate is provided with a mounting groove for mounting the laser, and the flip plate is adapted to rotate around the pivot shaft to drive the flip of the laser to adjust the flip angle of the laser.

[0008] In some embodiments, the flip angle adjusting assembly further comprises a bottom plate;

[0009] The flip plate and the bottom plate are stacked along a second direction, and one end of the flip plate in the first direction is rotatably connected to the bottom plate through the pivot shaft;

[0010] Wherein, the second direction and the first direction are perpendicular to each other.

[0011] In some embodiments, the side of the flip plate away from the bottom plate is provided with a fixed plate and an adjusting plate;

[0012] Wherein, the fixed plate and the adjusting plate are respectively arranged on opposite sides of the flip plate in a third direction, and the adjusting plate is adapted to reciprocate along the third direction to form a mounting groove between the fixed plate and the adjusting plate;

[0013] The third direction is perpendicular to the first direction and the second direction.

[0014] In some embodiments, the adjusting plate is connected with the overturning plate through an adjusting bolt and a slide rod.

[0015] The adjusting bolt is configured to adjust the distance between the adjusting plate and the fixing plate in the third direction.

[0016] In some embodiments, the overturning angle adjusting assembly further comprises a first driving motor.

[0017] The first driving motor is drivingly connected with the rotating shaft, and drives the rotating shaft to rotate, thereby driving the overturning plate to rotate around the rotating shaft, and further driving the laser to overturn.

[0018] In some embodiments, the laser cleaning focusing mechanism further comprises a first adjusting assembly.

[0019] The first adjusting assembly is connected with the overturning angle adjusting assembly, and is configured to drive the laser to move along the second direction.

[0020] In some embodiments, the first adjusting assembly comprises a first telescopic rod, one end of the first telescopic rod is connected with the overturning angle adjusting assembly, and the first telescopic rod is configured to extend and retract along the second direction.

[0021] In some embodiments, the laser cleaning focusing mechanism further comprises a second adjusting assembly.

[0022] The second adjusting assembly is connected with the first adjusting assembly, and is configured to drive the laser to move along the first direction.

[0023] In some embodiments, the second adjusting assembly comprises a second telescopic rod, one end of the second telescopic rod is connected with the first adjusting assembly through a connecting block, and the second telescopic rod is configured to extend and retract along the first direction.

[0024] In some embodiments, the laser cleaning focusing mechanism further comprises a third adjusting assembly.

[0025] The third adjusting assembly is connected with the second adjusting assembly, and is configured to drive the laser to move along the third direction.

[0026] In some embodiments, the third adjusting assembly comprises a second driving motor, a driving screw rod, a sliding groove and a sliding block.

[0027] The driving screw rod and the sliding block are both arranged in the sliding groove, and the driving screw rod and the sliding groove both extend along the third direction.

[0028] The sliding block is threadedly connected with the driving screw rod, and the sliding block is connected with the second adjusting assembly.

[0029] The second driving motor is in driving connection with the driving screw, and the second driving motor rotates to drive the driving screw to rotate, and drive the sliding block to move along the third direction, so as to drive the laser to move along the third direction.

[0030] In a second aspect, the embodiments of the present application also provide a laser cleaning device, comprising the laser cleaning focusing mechanism, the laser and the workbench as described above.

[0031] The laser and the workbench are connected with the laser cleaning focusing mechanism.

[0032] The embodiments of the present application have the following beneficial effects:

[0033] In the embodiments of the present application, the laser cleaning focusing mechanism comprises a flip angle adjusting assembly. The flip angle adjusting assembly comprises a rotating shaft and a flip plate, one end of the flip plate in the first direction is connected with the rotating shaft. The flip plate is provided with a mounting groove for mounting the laser, and the flip plate is adapted to rotate around the rotating shaft, thereby driving the flip of the laser to adjust the flip angle of the laser. The flip plate realizes the mounting and fixing of the laser through the mounting groove, and provides support effect for the laser, ensuring the stability of the laser. The flip plate rotates along the rotating shaft to adjust the flip angle of the laser, thereby changing the incident angle of the laser emitted by the laser on the workpiece surface, realizing the focusing effect. That is, the laser cleaning focusing mechanism provided by the embodiments of the present application can adjust the flip angle of the laser through the flip angle adjusting assembly, thereby adjusting the incident angle of the laser emitted by the laser, realizing the focusing in the laser cleaning process, ensuring the laser cleaning effect while reducing the damage to the workpiece surface. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0035] Figure 1 is a perspective structural schematic diagram of the flip angle adjusting assembly provided by the embodiments of the present application. Figure 1 ;

[0036] Figure 2 is a perspective structural schematic diagram of the flip angle adjusting assembly provided by the embodiments of the present application. Figure 2 ;

[0037] Figure 3 is a sectional view of the flip angle adjusting assembly provided by the embodiments of the present application.

[0038] Figure 4 is a perspective structural schematic diagram of the laser cleaning device provided by the embodiments of the present application.

[0039] Description of reference numerals:

[0040] 10. Flip angle adjustment assembly; 1. Flip plate; 11. Mounting slot; 12. Fixed plate; 13. Adjustment plate; 131. Slide rod; 2. Rotating shaft; 3. Bottom plate; 4. First drive motor; 5. Adjustment bolt; 20. First adjustment assembly; 21. First telescopic rod; 30. Second adjustment assembly; 31. Second telescopic rod; 40. Third adjustment assembly; 41. Second drive motor; 42. Drive screw; 43. Slide groove; 44. Slider; 50. Connecting block; 60. Laser; 70. Workbench. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise specified, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; and "inside" and "outside" refer to the outline of the device.

[0042] First, as Figure 1 As shown, an embodiment of the present application provides a laser cleaning focus mechanism, including a flip angle adjustment assembly 10. The flip angle adjustment assembly 10 includes a rotating shaft 2 and a flip plate 1, one end of the flip plate 1 in a first direction being connected to the rotating shaft 2. The flip plate 1 is provided with a mounting groove 11 for mounting a laser 60. The flip plate 1 is adapted to rotate about the rotating shaft 2, driving the flip of the laser 60 to adjust the flip angle of the laser 60.

[0043] The flip plate 1 is used to install and fix the laser 60 through the mounting groove 11, and provides a support effect for the laser 60 to ensure the stability of the laser 60. The flip plate 1 rotates along the rotating shaft 2 to adjust the flip angle of the laser 60, thereby changing the incident angle of the laser emitted by the laser 60 on the surface of the workpiece to achieve a focusing effect. That is, the laser cleaning focusing mechanism provided in the embodiment of the present application can adjust the flip angle of the laser 60 through the flip angle adjustment component 10, thereby adjusting the incident angle of the laser emitted by the laser 60, achieving focusing during the laser cleaning process, ensuring the laser cleaning effect while reducing damage to the workpiece surface.

[0044] In some embodiments, asFigure 1 and Figure 2 As shown in

[0045] By setting the bottom plate 3 and stacking the turnover plate 1 and the bottom plate 3 along the second direction, the support effect on the laser 60 can be improved, and the stability of the laser 60 can be improved. Setting the bottom plate 3 also facilitates the connection of the turnover angle assembly with other assemblies. One end of the turnover plate 1 in the first direction is rotatably connected to the bottom plate 3 through the rotating shaft 2. When the turnover plate 1 rotates around the rotating shaft 2, it can be close to or away from the bottom plate 3, thereby realizing the adjustment of the turnover angle.

[0046] In some embodiments, as shown in Figure 1 and Figure 2 The side of the turnover plate 1 away from the bottom plate 3 is provided with a fixed plate 12 and an adjusting plate 13. The fixed plate 12 and the adjusting plate 13 are respectively arranged on opposite sides of the turnover plate 1 in the third direction, and the adjusting plate 13 is adapted to reciprocate along the third direction to form a mounting groove 11 between the fixed plate 12 and the adjusting plate 13. The third direction is perpendicular to the first direction and the second direction.

[0047] The fixed plate 12 and the adjusting plate 13 are arranged on opposite sides in the third direction to form a mounting groove 11 for mounting the laser 60. The adjusting plate 13 can reciprocate along the third direction to adjust the distance between the fixed plate 12 and the adjusting plate 13, facilitating the installation and removal of the laser 60 and improving the adaptability to different sizes of the laser 60.

[0048] In some embodiments, as shown in Figure 1 and Figure 2 In order to improve the fixing effect on the laser 60, the end of the turnover plate 1 away from the rotating shaft 2 is also provided with a fixed plate 12.

[0049] In some embodiments, as shown in Figure 1 The adjusting plate 13 is connected to the turnover plate 1 through an adjusting bolt 5 and a slide rod. The adjusting bolt 5 is configured to adjust the distance between the adjusting plate 13 and the fixed plate 12 in the third direction.

[0050] As shown in Figure 2 The bolt and the slide rod extend along the third direction, and the turnover plate 1 is provided with a connecting hole corresponding thereto. By adjusting the adjusting bolt 5, the adjusting plate 13 can move along the third direction, thereby controlling the distance between the adjusting plate 13 and the fixed plate 12 in the third direction. The slide rod can limit the movement direction of the adjusting plate 13 to avoid rotation of the adjusting plate 13 when the adjusting bolt 5 is rotated.

[0051] Specifically, the slide rod is arranged on the side of the adjusting plate 13 close to the turnover plate 1, and the side of the turnover plate 1 close to the adjusting plate 13 is correspondingly provided with a sliding groove 43. The slide rod is suitable for moving in the third direction in the sliding groove 43 to limit the moving direction of the adjusting plate 13.

[0052] In some embodiments, as shown in Figure 1 and Figure 2 , the turnover angle adjusting assembly further comprises a first driving motor 4. The first driving motor 4 is drivingly connected with the rotating shaft 2, and the first driving motor 4 drives the rotating shaft 2 to rotate, thereby driving the turnover plate 1 to rotate around the rotating shaft 2, and further driving the laser 60 to overturn.

[0053] The rotating of the first driving motor 4 can drive the rotating shaft 2 to rotate, thereby driving the turnover plate 1 connected with the rotating shaft 2 to rotate, so as to realize the turnover angle adjustment. By arranging the first driving motor 4, the automation degree of the turnover angle adjustment can be improved.

[0054] Specifically, as shown in Figure 1 and Figure 2 , the first driving motor 4 is arranged at one end of the bottom plate 3 in the third direction and is connected with one end of the rotating shaft 2 in the third direction. When the first driving motor 4 rotates, it can drive the rotating shaft 2 to rotate, thereby driving the turnover plate 1 to rotate.

[0055] Further, as shown in Figure 3 , the opposite ends of the rotating shaft 2 in the third direction are rotatably connected with the bottom plate 3, and the middle of the rotating shaft 2 is connected with the turnover plate 1. The middle of the rotating shaft 2 is provided with a gear, and a tooth ring is correspondingly arranged on the turnover plate 1. The connection between the rotating shaft 2 and the turnover plate 1 is realized through the mutual engagement of the gear and the tooth ring.

[0056] In some embodiments, as shown in Figure 4 , the laser cleaning and focusing mechanism further comprises a first adjusting assembly 20. The first adjusting assembly 20 is connected with the turnover angle adjusting assembly 10, and the first adjusting assembly 20 is configured to move in the second direction to drive the laser 60 to move in the second direction.

[0057] The first adjusting assembly 20 can adjust the position of the laser 60 in the second direction, realize the focusing of the laser 60 in the second direction, and improve the focusing effect.

[0058] In some embodiments, as shown in Figure 4 , the first adjusting assembly 20 comprises a first telescopic rod 21, one end of the first telescopic rod 21 is connected with the turnover angle adjusting assembly 10, and the first telescopic rod 21 is configured to extend and retract in the second direction.

[0059] That is, the first adjusting assembly 20 is realized by the first telescopic rod 21. The first telescopic rod 21 can be telescoped in the second direction, so as to drive the flip angle adjusting assembly 10 to reciprocate in the second direction, and then adjust the position of the laser 60 in the second direction, and realize the focusing of the laser 60 in the second direction. The first telescopic rod 21 can be telescoped as needed, and has good stability.

[0060] Further, the first telescopic rod 21 can be an electric telescopic rod, so as to improve the degree of automation.

[0061] In some embodiments, as shown in Figure 4 The laser cleaning and focusing mechanism further includes a second adjusting assembly 30. The second adjusting assembly 30 is connected with the first adjusting assembly 20, and the second adjusting assembly 30 is configured to drive the laser 60 to move along the first direction.

[0062] The second adjusting assembly 30 is connected with the first adjusting assembly 20, the first adjusting assembly 20 is connected with the flip angle adjusting assembly 10, and the laser 60 is arranged on the flip angle adjusting assembly. Therefore, when the second adjusting assembly 30 moves along the first direction, the laser 60 can be driven to move along the first direction, so as to realize the focusing of the laser 60 in the first direction, and improve the focusing effect.

[0063] In some embodiments, as shown in Figure 4 The second adjusting assembly 30 includes a second telescopic rod 31, one end of the second telescopic rod 31 is connected with the first adjusting assembly 20 through the connecting block 50, and the second telescopic rod 31 is configured to be telescoped along the first direction.

[0064] Similar to the first adjusting assembly 20, the second adjusting assembly 30 includes the second telescopic rod 31. The second telescopic rod 31 can be telescoped along the first direction, so as to drive the first adjusting assembly 20 connected therewith to reciprocate in the first direction. Since the laser 60 is connected with the first adjusting assembly 20 through the flip angle adjusting assembly, the second telescopic rod 31 drives the laser 60 to reciprocate in the first direction. The second telescopic rod 31 can be telescoped as needed, and has good stability.

[0065] The second telescopic rod 31 is connected with the first adjusting assembly 20 through the connecting block 50, so as to improve the stability of the connection. Since the extension directions of the second telescopic rod 31 and the first adjusting assembly 20 are different, the second telescopic rod 31 and the first adjusting assembly 20 can be fixed from different directions through the connecting block 50, so as to ensure the stability of the connection.

[0066] Further, the second telescopic rod 31 can also be an electric telescopic rod, so as to improve the degree of automation.

[0067] In some embodiments, as shown in Figure 4As shown, the laser cleaning focusing mechanism further comprises a third adjusting assembly 40. The third adjusting assembly 40 is connected with the second adjusting assembly 30, and the third adjusting assembly 40 is configured to drive the laser 60 to move along a third direction.

[0068] The third adjusting assembly 40 is connected with the laser 60 through the second adjusting assembly 30, the first adjusting assembly 20 and the overturning angle adjusting assembly 10. When the third adjusting assembly 40 moves along the third direction, the laser 60 can be driven to move along the third direction, so that the focusing of the laser 60 along the third direction is realized, and the focusing effect is improved.

[0069] According to the embodiments of the present application, the overturning angle adjusting assembly 10, the first adjusting assembly 20, the second adjusting assembly 30 and the third adjusting assembly 40 are connected and matched with each other, so that the laser 60 can be adjusted along the up-down direction (the first direction), the front-back direction (the second direction), the left-right direction (the third direction) and the overturning angle, thereby improving the freedom of the focusing adjustment of the laser 60, ensuring the focusing effect, reducing the damage to the workpiece surface while ensuring the laser cleaning effect.

[0070] In some embodiments, as shown in Figure 4 As shown, the third adjusting assembly 40 comprises a second driving motor 41, a driving screw 42, a sliding groove 43 and a sliding block 44. The driving screw 42 and the sliding block 44 are arranged in the sliding groove 43, and the driving screw 42 and the sliding groove 43 extend along the third direction. The sliding block 44 is threadedly connected with the driving screw 42, and the sliding block 44 is connected with the second adjusting assembly 30. The second driving motor 41 is drivingly connected with the driving screw 42. The second driving motor 41 rotates to drive the driving screw 42 to rotate, and the driving screw 42 drives the sliding block 44 to move along the third direction, so as to drive the laser 60 to move along the third direction.

[0071] That is, in the third adjusting assembly 40, the second driving motor 41 can drive the driving screw 42 to rotate. Since the driving screw 42 is threadedly connected with the sliding block 44 arranged in the sliding groove 43, when the driving screw 42 rotates, the sliding block 44 can move along the third direction in the sliding groove 43. The second adjusting assembly 30 is connected with the sliding block 44. When the sliding block 44 moves, the laser 60 can be driven to move along the third direction through the second adjusting assembly 30, the first adjusting assembly 20 and the overturning angle adjusting assembly.

[0072] In a second aspect, the embodiments of the present application further provide a laser cleaning device, as shown in Figure 4 As shown, the laser cleaning device comprises the laser cleaning focusing mechanism, the laser 60 and the workbench 70. The laser 60 and the workbench 70 are connected with the laser cleaning focusing mechanism.

[0073] The laser 60 is connected with the laser cleaning focusing mechanism, can ensure the focusing effect, ensure the laser cleaning effect, and reduce the damage to the workpiece surface. The workbench 70 is used for placing the workpiece to be cleaned.

[0074] As shown in Figure 4 The workbench 70 is connected with the third adjusting assembly 40 and located below the laser 60. The position of the laser 60 is adjusted through the laser cleaning focusing mechanism, so as to change the angle and position relationship between the laser 60 and the workpiece to be cleaned, realize the focusing, ensure the cleaning effect, and reduce the damage to the workpiece to be cleaned.

[0075] The above describes the embodiments of the present application in detail. The specific examples are applied to the principle and implementation mode of the present application. The above embodiment is only used to help understand the method and core idea of the present application. Meanwhile, according to the idea of the present application, the specific implementation mode and application range will be changed by the person skilled in the art. In summary, the content of the specification should not be understood as the limitation of the present application.

Claims

1. A laser cleaning focusing mechanism, characterized in that, The application relates to a laser cleaning and focusing mechanism. The laser cleaning and focusing mechanism comprises a rotating shaft and a rotating plate, one end of the rotating plate in a first direction is connected with the rotating shaft; The rotating plate is provided with a mounting groove for mounting a laser, the rotating plate is adapted to rotate around the rotating shaft to drive the laser to rotate to adjust the rotating angle of the laser.

2. The laser cleaning and focusing mechanism of claim 1, wherein, The laser cleaning and focusing mechanism further comprises a bottom plate; The rotating plate and the bottom plate are stacked along a second direction, one end of the rotating plate in the first direction is rotatably connected with the bottom plate through the rotating shaft; The second direction and the first direction are perpendicular to each other.

3. The laser cleaning and focusing mechanism of claim 2, wherein, The side of the rotating plate away from the bottom plate is provided with a fixing plate and an adjusting plate; The fixing plate and the adjusting plate are respectively arranged on opposite sides of the rotating plate in a third direction, the adjusting plate is adapted to reciprocate along the third direction to form the mounting groove between the fixing plate and the adjusting plate; The third direction is perpendicular to the first direction and the second direction.

4. The laser cleaning and focusing mechanism of claim 3, wherein, The adjusting plate is connected with the rotating plate through an adjusting bolt and a sliding rod; The adjusting bolt is configured to adjust the distance between the adjusting plate and the fixing plate in the third direction.

5. The laser cleaning and focusing mechanism of claim 2, wherein, The laser cleaning and focusing mechanism further comprises a first driving motor; The first driving motor is drivingly connected with the rotating shaft, the first driving motor drives the rotating shaft to rotate, drives the rotating plate to rotate around the rotating shaft, and further drives the laser to rotate.

6. The laser cleaning and focusing mechanism of claim 3, wherein, The laser cleaning and focusing mechanism further comprises a first adjusting assembly; The first adjusting assembly is connected with the laser cleaning and focusing mechanism, and the first adjusting assembly is configured to drive the laser to move along the second direction.

7. The laser cleaning and focusing mechanism of claim 6, wherein, The first adjusting assembly comprises a first telescopic rod, one end of the first telescopic rod is connected with the laser cleaning and focusing mechanism, and the first telescopic rod is configured to extend and retract along the second direction.

8. The laser cleaning and focusing mechanism of claim 6, wherein, The laser cleaning and focusing mechanism further comprises a second adjusting assembly; The second adjusting assembly is connected with the first adjusting assembly, and the second adjusting assembly is configured to drive the laser to move along the first direction.

9. The laser cleaning and focusing mechanism of claim 8, wherein, The second adjusting assembly comprises a second telescopic rod, one end of the second telescopic rod is connected with the first adjusting assembly through a connecting block, and the second telescopic rod is configured to extend and retract along the first direction.

10. The laser cleaning and focusing mechanism of claim 8, wherein, The laser cleaning and focusing mechanism further comprises a third adjusting assembly; The third adjusting assembly is connected with the second adjusting assembly, and the third adjusting assembly is configured to drive the laser to move along the third direction.

11. The laser cleaning and focusing mechanism of claim 10, wherein, The third adjusting assembly comprises a second driving motor, a driving screw, a sliding groove and a sliding block; The driving screw and the sliding block are arranged in the sliding groove, and the driving screw and the sliding groove extend along the third direction; The sliding block is threadedly connected with the driving screw, and the sliding block is connected with the second adjusting assembly; The second driving motor is drivingly connected with the driving screw, the second driving motor drives the driving screw to rotate, the driving screw drives the sliding block to move along the third direction to drive the laser to move along the third direction.

12. A laser cleaning apparatus, characterized by, The laser cleaning and focusing mechanism, the laser and the workbench are as claimed in any one of claims 1-11. The laser and the worktable are connected with the laser cleaning focusing mechanism.