Aluminum alloy profile surface laser cleaning device

Abstract

The utility model provides a laser cleaning device for the surface of an aluminum alloy profile, and belongs to the technical field of metal surface treatment. The problem that the distance between the laser and the aluminum surface is difficult to maintain is solved. The laser cleaning device comprises a cleaning head tool and a laser power source, the cleaning head tool comprises walking wheels, positioning wheels, a mounting plate, a mounting frame and a laser head, the walking wheels and the positioning wheels are connected with the mounting frame, the four walking wheels are arranged in pairs, the two pairs of walking wheels are arranged on the two sides of the upper surface and the lower surface of an aluminum alloy profile respectively, and the laser head is arranged on the mounting frame. The number of the positioning wheels is two, the two positioning wheels are arranged on the side edge of the aluminum alloy profile in the horizontal direction, a mounting plate is arranged in the middle of the mounting frame, laser heads are arranged on the upper portion and the lower portion of the mounting plate correspondingly, and the two laser heads are located on the two sides of the upper surface and the lower surface of the aluminum alloy profile correspondingly. And the laser head is connected with a laser power supply through a cable. The laser cleaning device is mainly used for aluminum alloy profile surface laser cleaning.

Description

Technical Field

[0001] This utility model belongs to the field of metal surface treatment technology, and in particular relates to a laser cleaning device for aluminum alloy profiles. Background Technology

[0002] Aluminum alloys possess advantages such as lightweight, high strength, corrosion resistance, good machinability, and strong electrical and thermal conductivity, making them widely used in transportation, construction, electronics, packaging, aerospace, and other manufacturing sectors. However, the uneven and porous oxide film on the surface of aluminum alloys can affect the quality of welding, coating, or bonding. Therefore, before processing aluminum alloys, surface cleaning is generally performed to remove the oxide film and improve the quality of subsequent processing.

[0003] Currently, the main cleaning methods for aluminum alloy surfaces include: physical cleaning, chemical cleaning, ultrasonic cleaning, and cleaning with specialized cleaning agents. Physical cleaning involves using organic solvents (such as gasoline, kerosene, alcohol, and thinner) to dissolve surface grease or removing stubborn oil stains by burning. It requires no complex equipment and is suitable for small or lightly contaminated parts. However, solvent residue may remain on the surface, requiring thorough drying to avoid affecting subsequent processes, and it is difficult to remove oxide films or deep contaminants. Chemical cleaning involves two steps: alkaline cleaning by soaking in a weakly alkaline solution at 40-60℃ for 30-60 minutes, and acidic cleaning by neutralizing the alkaline residue with phosphoric acid (15%-25%), hydrochloric acid (10%-15%), or nitric acid solutions. Chemical cleaning is effective at removing dirt and oxide layers at a low cost, but it can easily lead to aluminum corrosion. Ultrasonic cleaning uses the cavitation effect of ultrasound to remove surface dirt, making it suitable for complex structures or precision parts. It is highly efficient and causes little damage to aluminum, but the equipment is expensive and the frequency needs to be adjusted for different cleaning needs, making the operation more cumbersome. Specialized cleaning agents use industrial-grade weak alkaline silicate-free cleaning agents to remove oil and light oxide films through soaking or spraying. They are environmentally friendly and safe, and have high compatibility with different aluminum materials. However, specialized cleaning agents are expensive and the operation requires strict adherence to procedures.

[0004] Laser cleaning technology is an advanced cleaning method that uses high-energy laser beams to remove contaminants or coatings from material surfaces, offering advantages such as non-contact operation, high precision, and environmental friendliness. Through precise energy control and non-destructive cleaning, laser cleaning technology has become a key process for upgrading high-end manufacturing, especially showing significant advantages in processing sensitive materials such as aluminum alloys and composite materials. However, when using a handheld laser to clean the surface of aluminum alloy sheets, it is difficult for a human hand to maintain a consistently controlled distance between the laser and the sheet surface: too far a distance may result in insufficient laser energy and incomplete cleaning, while too close a distance may damage the aluminum due to excessive energy. Utility Model Content

[0005] In view of this, the present invention aims to provide a laser cleaning device for aluminum alloy profiles to solve the problem of maintaining a difficult distance between the laser and the aluminum surface.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a laser cleaning device for aluminum alloy profile surfaces, comprising a cleaning head fixture and a laser power supply. The cleaning head fixture includes traveling wheels, positioning wheels, a mounting plate, a mounting frame, and a laser head. The traveling wheels and positioning wheels are both connected to the mounting frame. There are four traveling wheels arranged in pairs, with two pairs of traveling wheels respectively located on both sides of the upper and lower surfaces of the aluminum alloy profile. There are two positioning wheels, which are arranged horizontally on the sides of the aluminum alloy profile. A mounting plate is provided in the middle of the mounting frame, and laser heads are provided at the upper and lower parts of the mounting plate. The two laser heads are located on both sides of the upper and lower surfaces of the aluminum alloy profile, and the laser heads are connected to the laser power supply via cables.

[0007] Furthermore, the mounting frame includes a support frame, vertical connecting rods, a wheel mounting bracket, and horizontal connecting rods. Vertical connecting rods are provided at the upper and lower parts of the support frame. The vertical connecting rods are connected to the wheel mounting bracket, and the wheel mounting bracket is connected to two wheels. Two horizontal connecting rods are provided on the support frame along the horizontal direction, and the horizontal connecting rods are connected to positioning wheels.

[0008] Furthermore, an elastic support is provided between the vertical connecting rod and the traveling wheel mounting frame.

[0009] Furthermore, the elastic support is a spring.

[0010] Furthermore, gas nozzles are provided on both the upper and lower parts of the mounting plate, with the two gas nozzles located on both sides of the upper and lower surfaces of the aluminum alloy profile, respectively.

[0011] Furthermore, the support frame is equipped with handrails.

[0012] Furthermore, the cable is wound around a cable storage device.

[0013] Furthermore, the mounting plate is provided with an arc-shaped adjustment hole, through which the laser head is connected to the mounting plate.

[0014] Furthermore, the mounting plate is provided with weight-reduction holes.

[0015] Furthermore, the mounting frame is made of aluminum alloy.

[0016] Compared with existing technologies, the advantages of this invention are as follows: The aluminum alloy profile surface laser cleaning device of this invention effectively solves the problem of fluctuations in the distance between the laser head and the workpiece caused by unstable manual operation during traditional laser cleaning by using a combination of guide rail-free traveling wheels and positioning wheels. The device adopts a dual-laser head structure with symmetrical upper and lower arrangement, which can simultaneously clean the upper and lower surfaces of the profile, significantly improving work efficiency and avoiding uneven stress caused by single cleaning. The traveling wheels achieve adaptive adjustment through elastic support, which can accommodate the clamping requirements of profiles of different thicknesses. The horizontal adjustment of the positioning wheels further expands the adaptability of the device to various widths. The multi-dimensional adjustment function of the laser head angle and height, combined with the synchronous blowing of the gas nozzle, not only ensures precise control of cleaning energy, but also removes peeled contaminants in real time, reducing the risk of secondary adhesion. The overall frame is made of lightweight aluminum alloy material and has a weight-reducing structure. With the ergonomic handrail design, it greatly reduces the operating intensity while ensuring rigidity, making it especially suitable for continuous cleaning operations of large-sized profiles. Attached Figure Description

[0017] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of a laser cleaning device for aluminum alloy profiles according to the present invention;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the cleaning head fixture described in this utility model. Figure 1 ;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the cleaning head fixture described in this utility model. Figure 2 ;

[0021] Figure 4 This is a schematic diagram of the connection structure of a laser cleaning device for aluminum alloy profiles according to the present invention;

[0022] Figure 5 This is an isometric view of the connection structure of the laser cleaning device for aluminum alloy profiles described in this utility model.

[0023] In the picture:

[0024] 1-Cleaning head fixture, 2-Cable storage device, 3-Laser power supply, 4-Elastic support, 5-Walking wheel, 6-Positioning wheel, 7-Mounting plate, 8-Mounting frame, 9-Laser head, 10-Support frame, 11-Handrail, 12-Vertical connecting rod, 13-Walking wheel mounting bracket, 14-Horizontal connecting rod, 15-Gas nozzle. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other, and the described embodiments are only some embodiments of the present invention, not all embodiments.

[0026] See Figure 1-5 This embodiment describes a laser cleaning device for the surface of aluminum alloy profiles. It includes a cleaning head fixture 1 and a laser power supply 3. The cleaning head fixture 1 includes traveling wheels 5, positioning wheels 6, a mounting plate 7, a mounting frame 8, and a laser head 9. Both the traveling wheels 5 and the positioning wheels 6 are connected to the mounting frame 8. There are four traveling wheels 5 arranged in pairs, with two pairs of wheels 5 respectively positioned on the upper and lower surfaces of the aluminum alloy profile. There are two positioning wheels 6, positioned horizontally on the sides of the aluminum alloy profile, employing a railless design to eliminate the cumbersome operation of laying guide rails. The laser cleaning device travels along the workpiece surface, with two pairs of traveling wheels 5 at the top and bottom, and adjustable height to accommodate workpieces of different thicknesses. A pair of positioning wheels 6 are provided on the sides for width positioning. The lateral width of the positioning wheels 6 is adjustable to adjust and maintain the cleaning width, significantly improving work efficiency and avoiding uneven stress caused by a single cleaning cycle. The mounting frame 8 has a mounting plate 7 in the middle. The mounting plate 7 has laser heads 9 on the upper and lower parts. The two laser heads 9 are located on both sides of the upper and lower surfaces of the aluminum alloy profile, respectively, and can clean the upper and lower surfaces of the aluminum alloy profile at the same time. The laser heads 9 are connected to the laser power supply 3 through cables.

[0027] In this embodiment, the mounting frame 8 includes a support frame 10, a vertical connecting rod 12, a wheel mounting bracket 13, and a horizontal connecting rod 14. The upper and lower parts of the support frame 10 are provided with vertical connecting rods 12, which are connected to the wheel mounting bracket 13. The wheel mounting bracket 13 is connected to two wheels 5. Two horizontal connecting rods 14 are provided on the support frame 10 along the horizontal direction, and the horizontal connecting rods 14 are connected to the positioning wheel 6.

[0028] In this embodiment, an elastic support 4 is provided between the vertical connecting rod 12 and the traveling wheel mounting frame 13. Preferably, the elastic support 4 is a spring. The traveling wheel 5 achieves adaptive adjustment through the elastic support 4, which can accommodate the clamping requirements of profiles of different thicknesses. The horizontal adjustment of the positioning wheel 6 further expands the adaptability of the device to various widths.

[0029] In this embodiment, gas nozzles 15 are provided on both the upper and lower parts of the mounting plate 7, with the two gas nozzles 15 located on both sides of the upper and lower surfaces of the aluminum alloy profile, respectively. The gas nozzles 15 are used to connect compressed air and purge.

[0030] In this embodiment, a handrail 11 is provided on the support frame 10. This handrail is used for manually pushing the device forward. The operator holds the handrail 11 and drives the laser cleaning device forward at approximately 2.2 m / min, saving costs.

[0031] In this embodiment, the cable is wound around the cable storage device 2. The cable storage device 2 stores the cable of the laser head 9. When the laser head 9 moves far away, the cable storage device 2 releases the cable, and when the laser head 9 moves close, the cable storage device 2 retracts the cable.

[0032] The mounting plate 7 is provided with arc-shaped adjustment holes, through which the laser head 9 is connected to the mounting plate 7. The height and angle of the laser head 9 are adjustable, adapting to different angles and heights under different workpiece conditions. The multi-dimensional adjustment function of the laser head 9's angle and height, combined with the synchronous blowing of the gas nozzle, not only ensures precise control of cleaning energy but also removes dislodged contaminants in real time, reducing the risk of secondary adhesion. The mounting plate 7 is provided with weight-reduction holes. The mounting frame 8 is made of aluminum alloy, ensuring both rigidity and lightweight requirements. The overall frame uses lightweight aluminum alloy and incorporates a weight-reduction structure, along with an ergonomic handrail design, significantly reducing operational intensity while maintaining rigidity, making it particularly suitable for continuous cleaning operations on large-sized profiles.

[0033] When using the laser cleaning device, first install it on the aluminum alloy profile to be cleaned. The device is typically positioned in the center of the profile's length, ensuring all wheels 5 and 6 are firmly in contact with the profile before use. Then, set the laser power as needed and start the laser head 9 to begin cleaning the surface. The device is manually propelled during cleaning, maintaining a consistent speed. The laser cleans simultaneously from both top and bottom, covering half of the shorter side of the profile. After cleaning one side, remove the device and install it on the other side, repeating the same steps to complete the cleaning of the remaining half.

[0034] The specific embodiments of this utility model disclosed above are merely illustrative of the present utility model. These specific embodiments do not exhaustively describe all details, nor do they limit the utility model to only the described embodiments. Many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it.

Claims

1. An apparatus for laser cleaning of an aluminum alloy profile surface, characterized by: It includes a cleaning head fixture (1) and a laser power supply (3). The cleaning head fixture (1) includes a traveling wheel (5), a positioning wheel (6), a mounting plate (7), a mounting frame (8), and a laser head (9). The traveling wheel (5) and the positioning wheel (6) are both connected to the mounting frame (8). There are four traveling wheels (5), which are arranged in pairs. The two pairs of traveling wheels (5) are respectively set on both sides of the upper and lower surfaces of the aluminum alloy profile. There are two positioning wheels (6), which are set on the side of the aluminum alloy profile in the horizontal direction. The mounting frame (8) is provided with a mounting plate (7) in the middle. The upper and lower parts of the mounting plate (7) are provided with laser heads (9). The two laser heads (9) are respectively located on both sides of the upper and lower surfaces of the aluminum alloy profile. The laser heads (9) are connected to the laser power supply (3) through cables.

2. The apparatus for laser cleaning of an aluminum alloy profile surface according to claim 1, characterized in that: The mounting frame (8) includes a support frame (10), a vertical connecting rod (12), a wheel mounting frame (13), and a horizontal connecting rod (14). The upper and lower parts of the support frame (10) are provided with vertical connecting rods (12). The vertical connecting rods (12) are connected to the wheel mounting frame (13). The wheel mounting frame (13) is connected to two wheels (5). The support frame (10) is provided with two horizontal connecting rods (14) along the horizontal direction. The horizontal connecting rods (14) are connected to the positioning wheel (6).

3. The apparatus for laser cleaning of an aluminum alloy profile surface according to claim 2, characterized in that: An elastic support (4) is provided between the vertical connecting rod (12) and the traveling wheel mounting frame (13).

4. The laser cleaning device for aluminum alloy profiles according to claim 3, characterized in that: The elastic support part (4) is a spring.

5. The laser cleaning device for aluminum alloy profiles according to claim 1, characterized in that: Gas nozzles (15) are provided on both the upper and lower parts of the mounting plate (7), and the two gas nozzles (15) are located on both sides of the upper and lower surfaces of the aluminum alloy profile.

6. The apparatus for laser cleaning of an aluminum alloy profile surface according to claim 2, characterized in that: The support frame (10) is provided with a handrail (11).

7. The apparatus for laser cleaning of an aluminum alloy profile surface according to claim 1, characterized in that: The cable is wound around the cable storage device (2).

8. The apparatus for laser cleaning of an aluminum alloy profile surface according to claim 1, characterized in that: The mounting plate (7) is provided with an arc-shaped adjustment hole, and the laser head (9) is connected to the mounting plate (7) through the arc-shaped adjustment hole.

9. The apparatus for laser cleaning of an aluminum alloy profile surface according to claim 1, characterized in that: The mounting plate (7) is provided with weight reduction holes.

10. The apparatus for laser cleaning of an aluminum alloy profile surface according to claim 1, characterized in that: The mounting frame (8) is made of aluminum alloy.

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