Automatic cleaning device for tailor-welding seam

Abstract

The utility model discloses an automatic cleaning device for tailor-welded seams, which relates to the technical field of cleaning and comprises a mounting plate, an adjusting device for adjusting the height of a cleaning frame is arranged on the mounting plate, and a brush wheel and a sponge wheel are rotatably mounted on the inner side of the cleaning frame; a stepped cleaning structure with the brush wheel and the sponge wheel cooperatively working is adopted, nylon bristles of the brush wheel can powerfully peel off stubborn welding slag and splashes on the surface of a weld joint, and rough cleaning is achieved; the sponge wheel is made of a polymer PCB material and can be tightly attached to the surface of the weld joint, residual water stains, tiny impurities and oil stains are accurately adsorbed, fine cleaning is completed, the problems that manual wiping is not thorough, and the cleaning effect is inconsistent are solved, the surface of the cleaned weld joint is smooth and clean, and the service life of the weld joint is prolonged. Cracking and deformation caused by die scratching or workpiece stress concentration in the follow-up stamping and bending procedures are effectively avoided, the rejection rate is remarkably reduced, meanwhile, the corrosion resistance of a weld joint area is improved, and the service life of a product is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of cleaning technology, and more specifically, to an automatic cleaning device for weld seams. Background Technology

[0002] In steel processing, automobile manufacturing, and construction machinery, welding has become a core production process due to its ability to flexibly combine steel plates of different specifications and materials to achieve lightweight structures and performance optimization. However, during the welding process, weld slag, spatter, and welding fumes are easily generated in the weld seam and the surrounding area of ​​about 2cm. At the same time, due to the influence of cooling media and workshop environment, oil stains, water stains, and other contaminants also adhere to it. The presence of these impurities not only seriously damages the flatness of the product's appearance but also causes a series of subsequent problems: On the one hand, the high hardness of the residual weld slag may scratch the mold surface or cause stress concentration in the steel plate during subsequent stamping, bending, and other forming processes, leading to quality defects such as cracking and deformation, and significantly increasing the scrap rate; on the other hand, contaminants affect the corrosion resistance of the weld seam area, reducing the product's service life, especially for products with extremely high requirements for structural reliability, such as automobile bodies and pressure vessels, posing potential safety hazards.

[0003] In existing welding production lines, weld seam cleaning is still primarily done manually. Common cleaning methods include wiping with a cloth, grinding with a wire brush, or scraping with a scraper. These methods have significant drawbacks: First, manual cleaning relies on the operator's experience and sense of responsibility, resulting in inconsistent cleaning effectiveness and the potential for missed areas or incomplete cleaning, making it difficult to meet the quality control requirements of large-scale production. Second, welded workpieces are often large plates or semi-finished products, making manual cleaning labor-intensive, inefficient, and requiring offline operation after welding, thus extending the production cycle and limiting the overall capacity of the production line. Third, the weld seam area is hot after welding, posing a risk of burns to operators handling the work at close range. Additionally, residual welding fumes and metal particles may be inhaled by operators, harming their health. Furthermore, long-term manual cleaning increases the company's labor costs, hindering the improvement of production efficiency.

[0004] To address the above problems, an automatic cleaning device for weld seams is proposed. Utility Model Content

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] This utility model provides an automatic cleaning device for welded seams, including a mounting plate. The mounting plate is equipped with an adjustment device for adjusting the height of the cleaning frame. A brush wheel and a sponge wheel are rotatably mounted on the inner side of the cleaning frame. A drive device for rotating the brush wheel and sponge wheel is provided on the cleaning frame. Multiple blowing nozzles are fixedly mounted on the side wall of the cleaning frame. The blowing nozzles are connected to a second solenoid valve mounted on the mounting plate through a hose. The second solenoid valve is connected to an external compressed gas supply device through a hose. The cleaning frame is also equipped with a suction port, a controller, and a positioning sensor. The suction port is connected to an external industrial vacuum cleaner. The industrial vacuum cleaner, the second solenoid valve, and the positioning sensor are all electrically connected to the controller.

[0007] Preferably, the drive device includes a first motor and a second motor mounted on the cleaning rack. The sponge wheel is driven to the output end of the first motor through a pulley assembly, and the brush wheel is driven to the output end of the second motor through a pulley assembly. Both the first motor and the second motor are electrically connected to the controller.

[0008] Preferably, the adjustment device includes an adjustment plate fixed to the bottom of the mounting plate, a cylinder fixedly installed at the bottom of the adjustment plate, the output end of the cylinder being fixedly connected to the cleaning rack, the cylinder being connected to a first solenoid valve mounted on the mounting plate via a hose, the first solenoid valve being connected to an external compressed gas supply device via a hose, and the first solenoid valve being electrically connected to a controller.

[0009] Preferably, the top of the cleaning rack is fixedly equipped with an adjustment column, which is slidably engaged with the adjustment plate.

[0010] Preferably, the suction port is located at the top of the cleaning rack, between the brush wheel and the sponge wheel.

[0011] As described above, the beneficial effects of this utility model are:

[0012] This device employs a stepped cleaning structure that combines brush wheels and sponge wheels. The nylon bristles of the brush wheels powerfully remove stubborn solder slag and spatter from the weld surface, achieving a "coarse cleaning." The sponge wheels, made of high-polymer PCB material, closely adhere to the weld surface, precisely absorbing residual water stains, fine impurities, and oil, completing a "fine cleaning." This solves the problems of incomplete cleaning and inconsistent cleaning results from manual wiping. The cleaned weld surface is smooth and clean, effectively preventing mold scratches or workpiece stress concentration that could lead to cracking and deformation during subsequent stamping and bending processes. This significantly reduces the scrap rate, while also improving the corrosion resistance of the weld area and extending product lifespan.

[0013] The device is equipped with a controller and positioning sensors. The positioning sensors can automatically identify the weld position and send signals to the controller, causing the cylinder to drive the cleaning frame to descend precisely, so that the cleaning wheels (brush wheels and sponge wheels) fit into the weld. After cleaning, it automatically resets. No manual intervention is required throughout the process. Operators only need to click the corresponding button on the controller to start the cleaning process and can also monitor the equipment's operating status in real time. There is no need to come into close contact with the high-temperature weld, avoiding safety hazards such as burns and dust inhalation. This device can replace the cleaning workload of 2-3 people, significantly reducing the company's labor input. At the same time, it avoids the disadvantages of low efficiency and offline operation of manual cleaning, realizing online real-time cleaning after welding, shortening the production cycle, and improving the overall production line capacity.

[0014] The symmetrically arranged blowing nozzles on both sides of the cleaning rack can spray compressed air controlled by a second solenoid valve to remove impurities adhering to the surfaces of the brush wheels and sponge wheels in real time, preventing contaminants from re-adhering to the workpieces. The suction port located between the brush wheels and sponge wheels is connected to an industrial vacuum cleaner, which can simultaneously suck up welding slag, dust and other impurities blown off, forming a closed-loop self-cleaning system of "blowing-vacuuming" to keep the cleaning wheels clean and the workshop environment tidy. The sponge wheels can be washed and reused, and only need to be cleaned once a day to meet the needs of all-day use. They only need to be replaced once a week, resulting in a long service life and low replacement cost. The brush wheels are connected to the motor through a pulley assembly, ensuring stable transmission and low wear rate. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the cleaning rack, adjusting plate, and adjusting column in this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the brush wheel, sponge wheel, and blowing nozzle in this utility model.

[0018] In the diagram: 1. Mounting plate; 2. First solenoid valve; 3. Second solenoid valve; 4. Cylinder; 5. Adjusting plate; 6. Adjusting column; 7. Suction port; 8. Cleaning rack; 9. Controller; 10. Positioning sensor; 11. Blowing nozzle; 12. First motor; 13. Second motor; 14. Brush wheel; 15. Sponge wheel. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] like Figures 1-3 As shown, this is an embodiment of the present invention, and the automatic cleaning device for weld seams provided will be described in detail below:

[0021] An automatic cleaning device for weld seams includes a mounting plate 1 with a mounting groove for easy installation. The mounting plate 1 is equipped with an adjustment device for adjusting the height of a cleaning frame 8. A brush wheel 14 and a sponge wheel 15 are rotatably mounted inside the cleaning frame 8. A drive device is provided on the cleaning frame 8 to rotate the brush wheel 14 and the sponge wheel 15. Multiple blowing nozzles 11 are fixedly mounted on the side wall of the cleaning frame 8. The blowing nozzles 11 are connected to a second solenoid valve 3 mounted on the mounting plate 1 via hoses (not shown in the figure). The second solenoid valve 3 is connected to an external compressed gas supply device (not shown in the figure) via hoses. The cleaning frame 8 also includes a suction port 7, a controller 9, and a positioning sensor 10. The positioning sensor 10 is used to detect the position of the workpiece in real time. The suction port 7 is connected to an external industrial vacuum cleaner (not shown in the figure). The industrial vacuum cleaner, the second solenoid valve 3, and the positioning sensor 10 are all electrically connected to the controller 9. The second solenoid valve 3, the compressed gas supply device, the industrial vacuum cleaner, the controller 9, and the positioning sensor 10 are all existing technologies and will not be described in detail here.

[0022] The drive unit includes a first motor 12 and a second motor 13 mounted on the cleaning rack 8. A sponge wheel 15 is connected to the output of the first motor 12 via a pulley assembly, and a brush wheel 14 is connected to the output of the second motor 13 via the pulley assembly. Both the first motor 12 and the second motor 13 are electrically connected to the controller 9. The first motor 12, the second motor 13, and the pulley assembly are all existing technologies and will not be described in detail here.

[0023] The adjustment device includes an adjustment plate 5 fixed to the bottom of the mounting plate 1. A cylinder 4 is fixedly mounted on the bottom of the adjustment plate 5. The output end of the cylinder 4 is fixedly connected to the cleaning rack 8. The cylinder 4 is connected to a first solenoid valve 2 mounted on the mounting plate 1 via a hose. The first solenoid valve 2 is connected to an external compressed gas supply device via a hose. A speed control valve is installed on the hose between the first solenoid valve 2 and the cylinder 4. Both the speed control valve and the first solenoid valve 2 are electrically connected to the controller 9. The first solenoid valve 2, the cylinder 4, and the speed control valve are all existing technologies and will not be described in detail here.

[0024] The top of the cleaning rack 8 is fixedly equipped with an adjustment column 6, which slides with the adjustment plate 5, making the cleaning rack 8 more stable when moving.

[0025] The suction port 7 is located at the top of the cleaning rack 8, between the brush wheel 14 and the sponge wheel 15, which facilitates the suction of debris blown off and dust generated during the cleaning process.

[0026] The overall working principle of this device is as follows:

[0027] The entire device is securely connected to the fixed support device of the welding production line via the mounting groove on one side of the mounting plate 1, ensuring that the equipment remains stable during the cleaning operation and avoiding the impact of vibration on the cleaning accuracy. When the welded workpiece is conveyed to the cleaning area along the production line, the positioning sensor 10 on the outer wall of the cleaning rack 8 detects the position of the workpiece in real time. When the weld seam is detected to have reached the cleaning station, the positioning sensor 10 sends a signal to the controller 9, and the cleaning process starts (the workpiece continues to be conveyed). The controller 9 sends a command to the first solenoid valve 2, and the compressed air output from the external compressed gas supply device is sequentially delivered through the hose. The fluid flows through the first solenoid valve 2 and the speed control valve, finally entering the cylinder 4. The output end of the cylinder 4 drives the cleaning frame 8 to move downwards until the lower outer edges of the brush wheel 14 and the sponge wheel 15 are in contact with the weld surface. The speed control valve can precisely control the lifting and lowering speed of the cylinder 4 to avoid rigid collisions with the workpiece. After the cleaning frame 8 reaches its position, it stops moving. At this time, the first motor 12 and the second motor 13 are started, and the power is transmitted to the brush wheel 14 and the sponge wheel 15 through the pulley assembly, so that the two rotate synchronously. The brush wheel 14, with its optimized nylon bristles, can powerfully remove stubborn impurities such as welding slag and spatter from the weld surface. The initial cleaning is completed; the sponge wheel 15, made of high-polymer PCB material, can closely adhere to the weld seam, adsorbing residual water stains, fine impurities, and oil stains, achieving a refined secondary cleaning. While cleaning the weld seam, the second solenoid valve 3 is opened, and compressed air output from the external compressed gas supply device is delivered to the blowing nozzle 11 through a hose. The blowing nozzle 11 sprays high-pressure airflow to remove impurities attached to the surfaces of the brush wheel 14 and the sponge wheel 15 in real time, preventing secondary contamination of the workpiece. At the same time, the industrial vacuum cleaner connected to the suction port 7 is started, which can quickly suck up the impurities blown off and the dust generated during the cleaning process. To achieve centralized collection of impurities, when the workpiece is transported to the end of the cleaning area and the positioning sensor 10 does not detect the weld signal, it sends a work completion command to the controller 9. The controller 9 then shuts down the first motor 12, the second motor 13, the second solenoid valve 3, and the industrial vacuum cleaner, and controls the first solenoid valve 2 to switch directions. The cylinder 4 drives the cleaning frame 8 to reset upwards, waiting for the next workpiece cleaning command, thus completing a complete automatic cleaning cycle. The operator can also adjust the speed of the first motor 12 and the second motor 13 through the controller 9 to adjust the cleaning intensity according to the degree of weld contamination, ensuring that the cleaning effect meets the standards.

[0028] The above description is merely an embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic cleaning device for weld seams, characterized in that, The system includes a mounting plate (1), which is equipped with an adjustment device for adjusting the height of the cleaning rack (8). A brush wheel (14) and a sponge wheel (15) are rotatably mounted on the inside of the cleaning rack (8). A drive device for rotating the brush wheel (14) and the sponge wheel (15) is provided on the cleaning rack (8). Multiple blowing nozzles (11) are fixedly mounted on the side wall of the cleaning rack (8). The blowing nozzles (11) are connected to a second solenoid valve (3) mounted on the mounting plate (1) via a hose. The second solenoid valve (3) is connected to an external compressed gas supply device via a hose. The cleaning rack (8) is also equipped with a suction port (7), a controller (9), and a positioning sensor (10). The suction port (7) is connected to an external industrial vacuum cleaner. The industrial vacuum cleaner, the second solenoid valve (3), and the positioning sensor (10) are all electrically connected to the controller (9).

2. The automatic cleaning device for weld seams according to claim 1, characterized in that, The drive unit includes a first motor (12) and a second motor (13) mounted on the cleaning rack (8). The sponge wheel (15) is connected to the output end of the first motor (12) via a pulley assembly. The brush wheel (14) is connected to the output end of the second motor (13) via a pulley assembly. Both the first motor (12) and the second motor (13) are electrically connected to the controller (9).

3. The automatic cleaning device for weld seams according to claim 2, characterized in that, The adjustment device includes an adjustment plate (5) fixed to the bottom of the mounting plate (1), a cylinder (4) fixedly installed at the bottom of the adjustment plate (5), the output end of the cylinder (4) is fixedly connected to the cleaning rack (8), the cylinder (4) is connected to the first solenoid valve (2) installed on the mounting plate (1) through a hose, the first solenoid valve (2) is connected to an external compressed gas supply device through a hose, and the first solenoid valve (2) is electrically connected to the controller (9).

4. The automatic cleaning device for weld seams according to claim 3, characterized in that, The top of the cleaning rack (8) is fixedly equipped with an adjustment column (6), which is in sliding cooperation with the adjustment plate (5).

5. The automatic cleaning device for weld seams according to claim 4, characterized in that, The suction port (7) is located on the top of the cleaning rack (8) and is situated between the brush wheel (14) and the sponge wheel (15).

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