Laser cleaning machine for removing coating
By designing a closed dustproof module and air curtain assembly, combined with a fiber laser and water cooling system, the problem of module clogging caused by dust is solved, extending equipment life and improving cleaning efficiency.
Patent Information
- Application Number
- CN202423230138.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2034-12-26
AI Technical Summary
The dust generated during the coating cleaning process of existing laser cleaning machines can cause blockage and damage to the drive module, affecting the normal operation of the equipment.
The linear module and air curtain assembly, which adopt a closed dustproof module design, combined with a fiber laser and water cooling system, prevent dust from entering the module and prevent dust from contaminating optical components through the air curtain assembly, thus achieving precise cleaning.
It effectively prevents dust from entering the module, extends the service life of the equipment, ensures the stability and accuracy of the cleaning process, and improves cleaning efficiency.
Smart Images
Figure CN223789117U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal surface treatment, specifically a laser cleaning machine for removing coatings. Background Technology
[0002] Laser cleaning is a non-contact, safe, and environmentally friendly cleaning method. It uses a laser beam to break down contaminants, causing them to detach from the object being cleaned. It features non-contact operation, no heat effect, and applicability to various materials.
[0003] In some cleaning processes, it is necessary to clean the coating (such as zinc plating) on the surface of the workpiece to expose the substrate. Coating cleaning requires a high-power laser, which generates a large amount of dust during the cleaning process. When the dust falls onto the drive module of the laser cleaning machine, it can clog the delicate mechanisms inside the drive module (such as the threads on the lead screw), eventually causing the drive module to jam or be damaged. Utility Model Content
[0004] To address the aforementioned technical problems of existing laser cleaning machines, this utility model provides a laser cleaning machine for removing coatings, the specific technical solution of which is as follows:
[0005] A laser cleaning machine for removing coatings includes a cabinet, a first linear module, a second linear module, a third linear module, and a laser cleaning mechanism, wherein a table is formed on the top of the cabinet;
[0006] The first linear module is set on the table of the cabinet along the first horizontal direction, the second linear module is connected to the movable part of the first linear module and is set in the vertical direction, and the third linear module is connected to the movable part of the second linear module and is set in the second horizontal direction, wherein the second horizontal direction is perpendicular to the first horizontal direction.
[0007] The laser cleaning mechanism is connected to the moving parts of the third linear module. The first linear module is used to drive the laser cleaning mechanism to translate along the first horizontal direction, the second linear module is used to drive the laser cleaning mechanism to lift and lower, and the third linear module is used to drive the laser cleaning mechanism to translate along the second horizontal direction. The laser cleaning mechanism is used to perform laser cleaning on the workpiece located on the table of the cabinet.
[0008] The first linear module, the second linear module, and the third linear module are all enclosed dustproof modules.
[0009] In some embodiments, the two ends of the first linear module extend outwards from the platform of the cabinet.
[0010] In some embodiments, in addition to the laser cleaning machine for coating, a fiber laser is also included in the cabinet; the laser cleaning mechanism includes a mounting body, a connecting block, a galvanometer, and a field lens, wherein the mounting body is connected to the movable part of the third linear module, a first optical path is provided in the mounting body, a fiber optic connector is provided at the first end of the mounting body, the connecting block is connected to the second end of the mounting body, the galvanometer is mounted on the connecting block, the field lens is connected to the galvanometer, and a second optical path connecting the first optical path and the galvanometer is provided in the connecting block; the fiber optic connector is connected to the fiber laser via an optical fiber, the laser emitted by the fiber laser enters the first optical path via the optical fiber, and then enters the galvanometer via the first optical path and the second optical path, the galvanometer is used to deflect and adjust the laser, and the field lens is used to focus the laser with the deflected laser onto the workpiece.
[0011] In some embodiments, an optical path component is provided within the first optical path and / or the second optical path.
[0012] In some embodiments, the laser cleaning mechanism further includes a connecting rod with its upper end connected to the connecting block, and the lower end of the connecting rod extending downwards out of the field lens; the connecting rod is provided with at least one air curtain assembly communicating with an external compressed air source, and the air curtain assembly is configured to blow air in a horizontal direction to form an air curtain between the field lens and the table surface of the cabinet.
[0013] In some embodiments, the connecting rod is provided with two air curtain assemblies spaced apart in the vertical direction.
[0014] In some embodiments, the air curtain assembly includes a clamping seat and a nozzle, wherein the clamping seat is clamped onto a connecting rod, the nozzle is mounted on the clamping seat, and the nozzle is connected to a compressed air source via an air pipe.
[0015] In some embodiments, a water-cooled flow channel is provided inside the connecting block. In addition to the laser cleaning machine for plating, a water-cooling mechanism is also provided on the side of the cabinet. The water-cooling mechanism is connected to the water-cooled flow channel via a pipe.
[0016] In some embodiments, a maintenance door is provided on the side wall of the cabinet.
[0017] Driven by the coordinated operation of the first, second, and third linear modules, the laser cleaning mechanism achieves flexible movement in both the horizontal and vertical directions, thereby enabling precise laser cleaning of workpieces located on the tabletop of the cabinet.
[0018] In particular, the first, second, and third linear modules are all enclosed dustproof modules, which prevents dust from entering the interior of each linear module during the laser cleaning process and extends the service life of each linear module. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of the laser cleaning machine in the embodiment of this utility model;
[0020] Figure 2 This is a schematic diagram of the laser cleaning mechanism in an embodiment of the present invention.
[0021] Figures 1 to 2 Includes:
[0022] Rack 1;
[0023] First linear module 2;
[0024] Second linear module 3;
[0025] Third linear module 4;
[0026] Laser cleaning mechanism 5: mounting body 51, connecting block 52, galvanometer 53, field lens 54;
[0027] Connecting rod 6;
[0028] Air curtain assembly 7;
[0029] Water cooling mechanism 8. Detailed Implementation
[0030] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0031] As described in the background section, coating cleaning requires a high-power laser. During the cleaning process, a large amount of dust is generated. When the dust falls onto the drive module of the laser cleaning machine, it will cause blockage of the delicate mechanisms (such as the threads on the lead screw) in the drive module, eventually causing the drive module to jam or be damaged.
[0032] To solve this problem, this utility model provides a laser cleaning machine for removing coatings. For example... Figure 1 As shown, the laser cleaning machine for removing plating in this embodiment of the present invention includes a cabinet 1, a first linear module 2, a second linear module 3, a third linear module 4, and a laser cleaning mechanism 5, wherein:
[0033] A platform is formed on the top of cabinet 1.
[0034] The first linear module 2 is set on the platform of the cabinet 1 along the first horizontal direction (such as the X direction), the second linear module 3 is connected to the movable part of the first linear module 2 and is set along the vertical direction (such as the Z direction), and the third linear module 4 is connected to the movable part of the second linear module 2 and is set along the second horizontal direction (such as the Y direction), wherein the second horizontal direction is perpendicular to the first horizontal direction.
[0035] The laser cleaning mechanism 5 is connected to the movable part of the third linear module 4. The first linear module 2 is used to drive the laser cleaning mechanism 5 to translate along the first horizontal direction, the second linear module 3 is used to drive the laser cleaning mechanism 5 to rise and fall, and the third linear module 4 is used to drive the laser cleaning mechanism 5 to translate along the second horizontal direction. The laser cleaning mechanism 5 is used to perform laser cleaning on the workpiece located on the table of the cabinet 1.
[0036] The first linear module 2, the second linear module 3, and the third linear module 4 are all enclosed dustproof modules.
[0037] After the workpiece to be cleaned is placed on the table of cabinet 1, the laser emitted by the laser cleaning mechanism 5 can be accurately applied to the surface of the workpiece to be cleaned through the coordinated drive of the first linear module 2, the second linear module 3 and the third linear module 4, thereby performing laser cleaning on the coating of the surface to be cleaned.
[0038] Specifically, the first linear module 2, the second linear module 3, and the third linear module 4 are all enclosed dustproof modules, meaning that the core drive structure of the linear module (such as the lead screw) is encapsulated within the housing. This prevents dust from entering the interior of each linear module during the laser cleaning process, ultimately extending the service life of each linear module.
[0039] The first linear module 2, the second linear module 3, and the third linear module 4 in this embodiment of the present invention can adopt various existing enclosed dustproof modules, such as the dustproof linear drive module in Chinese utility model patent application No. 2023216932034, and the steel strip fully enclosed linear module in Chinese utility model patent application No. 2018204844309, etc.
[0040] As shown in Figure 1, optionally, both ends of the first linear module 2 extend outwards from the table surface of the cabinet 1. This arrangement extends the length of the first linear module 2, thereby correspondingly extending the translational stroke of the laser cleaning mechanism 5 in the first horizontal direction. This makes the laser cleaning machine in this embodiment suitable for cleaning the coatings of some long, strip-shaped or rod-shaped workpieces.
[0041] Optionally, the laser cleaning machine for removing coatings in this embodiment of the present invention further includes a fiber laser disposed in the cabinet 1. The laser cleaning mechanism 5 includes a mounting body 51, a connecting block 52, a galvanometer 53, and a field lens 54. The mounting body 51 is connected to the movable part of the third linear module 4. A first optical path is provided inside the mounting body 51. An optical fiber connector is provided at the first end of the mounting body 51. The connecting block 52 is connected to the second end of the mounting body 51. The galvanometer 53 is mounted on the connecting block 52. The field lens 54 is connected to the galvanometer 53. A second optical path connecting the first optical path and the galvanometer 54 is provided inside the connecting block 52. The optical fiber connector is connected to the fiber laser via an optical fiber. The laser emitted by the fiber laser enters the first optical path via the optical fiber, and then enters the galvanometer 53 via the first optical path and the second optical path. The galvanometer 53 is used to deflect and adjust the laser. The field lens 54 is used to focus the laser with the deflected laser onto the workpiece.
[0042] Compared to traditional solid-state and gas lasers, fiber lasers offer advantages such as high conversion efficiency, low laser threshold, and high beam quality, making them ideal for cleaning coatings on workpiece surfaces and significantly improving cleaning efficiency. The laser emitted from the fiber laser travels through an optical fiber, a first optical path, and a second optical path before entering the galvanometer 53, reducing light loss during transmission and ensuring precise entry of the laser into the galvanometer 53.
[0043] Optionally, the first optical path and / or the second optical path are provided with an optical path assembly consisting of devices such as isolators and beam expanders, and the laser is incident into the galvanometer 53 by the optical path assembly.
[0044] During laser cleaning, a large amount of dust is generated. As the dust rises, it contaminates the field lens 54, reducing its light transmittance. To solve this problem, options include... Figure 2 As shown, the laser cleaning mechanism 5 also includes a connecting rod 6 whose upper end is connected to the connecting block 52, and whose lower end extends downward out of the field lens 54. At least one air curtain assembly 7, which communicates with an external compressed air source, is provided on the connecting rod 6. The air curtain assembly 7 is configured to blow air horizontally to form an air curtain between the field lens 54 and the table surface of the cabinet 1. The air curtain prevents dust from rising and contaminating the field lens 54 during the laser cleaning process.
[0045] Optionally, the connecting rod 6 is provided with two air curtain assemblies 7 spaced apart in the vertical direction. The two air curtain assemblies 7 blow air synchronously, thereby forming two layers of air curtains between the field mirror 54 and the machine base 1, thereby further improving the dust blocking effect.
[0046] To facilitate the disassembly and maintenance of the air curtain assembly 7, optionally, the air curtain assembly 7 includes a clamping seat and a nozzle, wherein the clamping seat is clamped on the connecting rod 6, the nozzle is installed on the clamping seat, and the nozzle is connected to a compressed air source via an air pipe.
[0047] Optionally, a water-cooling channel is provided inside the connecting block 52. In this embodiment of the present invention, in addition to the laser cleaning machine for coating, a water-cooling mechanism 8 is also provided on the side of the cabinet 1. The water-cooling mechanism 8 is connected to the water-cooling channel through a pipe, thereby forming a water-cooling circulation loop. When the cooling water flows in the water-cooling channel, it cools the connecting block 52. The connecting block 52 then cools the galvanometer 53 and the field lens 54 to prevent the galvanometer 53 and the field lens 54 from being damaged due to excessive temperature.
[0048] Optionally, a maintenance door is provided on the side wall of the cabinet 1, which allows for the maintenance of components such as fiber lasers located inside the cabinet 1.
[0049] The present invention has been described in sufficient detail above, and is therefore quite specific. Those skilled in the art should understand that the descriptions in the embodiments are merely exemplary, and all changes made without departing from the true spirit and scope of the present invention should fall within the protection scope of the present invention. The scope of protection claimed by the present invention is defined by the claims, and not by the above descriptions in the embodiments.
Claims
1. A laser cleaning machine for removing coatings, characterized in that, The laser cleaning machine for removing coatings includes a cabinet, a first linear module, a second linear module, a third linear module, and a laser cleaning mechanism, wherein: a table is formed on the top of the cabinet; The first linear module is disposed on the table surface of the cabinet along a first horizontal direction, the second linear module is connected to the movable part of the first linear module and disposed along a vertical direction, and the third linear module is connected to the movable part of the second linear module and disposed along a second horizontal direction, wherein the second horizontal direction is perpendicular to the first horizontal direction; The laser cleaning mechanism is connected to the movable part of the third linear module. The first linear module is used to drive the laser cleaning mechanism to translate along the first horizontal direction. The second linear module is used to drive the laser cleaning mechanism to lift and lower. The third linear module is used to drive the laser cleaning mechanism to translate along the second horizontal direction. The laser cleaning mechanism is used to perform laser cleaning on the workpiece located on the table of the cabinet. The first linear module, the second linear module, and the third linear module are all enclosed dustproof modules.
2. The laser cleaning machine for removing coatings as described in claim 1, characterized in that, The two ends of the first linear module extend outward from the platform of the cabinet.
3. The laser cleaning machine for removing coatings as described in claim 1, characterized in that, The laser cleaning machine for removing coatings also includes a fiber laser installed inside the cabinet. The laser cleaning mechanism includes a mounting body, a connecting block, a galvanometer, and a field lens. The mounting body is connected to the movable part of the third linear module. A first optical path is provided inside the mounting body. An optical fiber connector is provided at the first end of the mounting body. The connecting block is connected to the second end of the mounting body. The galvanometer is mounted on the connecting block. The field lens is connected to the galvanometer. A second optical path connecting the first optical path and the galvanometer is provided inside the connecting block. The fiber optic connector is connected to the fiber laser via an optical fiber. The laser emitted by the fiber laser enters the first optical path via the optical fiber, and then enters the galvanometer via the first optical path and the second optical path. The galvanometer is used to deflect and adjust the laser. The field lens is used to focus the laser with the deflected laser onto the workpiece.
4. The laser cleaning machine for removing coatings as described in claim 3, characterized in that, An optical path component is provided in the first optical path and / or the second optical path.
5. The laser cleaning machine for removing coatings as described in claim 3, characterized in that, The laser cleaning mechanism also includes a connecting rod whose upper end is connected to the connecting block, and the lower end of the connecting rod extends downward out of the field lens; The connecting rod is provided with at least one air curtain assembly that is connected to an external compressed air source. The air curtain assembly is configured to blow air in a horizontal direction to form an air curtain between the field lens and the table surface of the cabinet.
6. The laser cleaning machine for removing coatings as described in claim 5, characterized in that, Two air curtain assemblies are provided on the connecting rod, spaced apart in the vertical direction.
7. The laser cleaning machine for removing coatings as described in claim 5, characterized in that, The air curtain assembly includes a clamping seat and a nozzle, wherein the clamping seat is clamped on the connecting rod, the nozzle is mounted on the clamping seat, and the nozzle is connected to a compressed air source via an air pipe.
8. The laser cleaning machine for removing coatings as described in claim 4, characterized in that, The connecting block is provided with a water-cooled flow channel, and the laser cleaning machine for removing coatings also includes a water-cooling mechanism located on the side of the cabinet. The water-cooling mechanism is connected to the water-cooled flow channel via a pipe.
9. The laser cleaning machine for removing coatings as described in claim 1, characterized in that, The cabinet has a maintenance door on its side wall.