Semi-closed spiral-flow type dust removal welding device

Abstract

The utility model discloses a semi-closed spiral-flow type dust removal welding device which comprises a dust removal cover and a laser module arranged at the top end of the dust removal cover, air outlet pipes are evenly distributed on the periphery of the dust removal cover in the circumferential direction, the air outlet ends of all the air outlet pipes incline towards the same side, and an included angle is formed between the extension line of the air outlet ends and the center line of the dust removal cover. And the air outlet pipe is connected with negative pressure equipment. The air outlet pipe with the inclination angle is arranged on the periphery of the dust removal cover, high-speed rotating airflow with the laser welding module as the center is formed in the dust removal cover, and compared with a traditional strip-shaped or pipe-shaped dust removal device, dust removal wind power is greatly concentrated.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery laser welding, and in particular to a semi-enclosed cyclone dust removal welding device. Background Technology

[0002] The production process of square aluminum-cased batteries requires laser welding for the cover and sealing, generating a large amount of metal debris and dust that necessitates dust removal. Currently, conventional dust collection devices rely on relatively simple suction methods, mostly employing strip or tubular structures. These methods suffer from difficulties in concentrating airflow, resulting in dispersed airflow and inefficient removal of metal debris and dust. Utility Model Content

[0003] The purpose of this invention is to provide a semi-enclosed vortex dust removal welding device. By setting an air outlet pipe with an inclined angle around the dust removal hood, a high-speed rotating airflow centered on the laser welding module is formed inside the dust removal hood. Compared with traditional strip or tubular dust removal devices, this greatly concentrates the dust removal airflow.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] This utility model discloses a semi-enclosed vortex dust removal welding device, including a dust removal hood and a laser module disposed at the top of the dust removal hood. Air outlet pipes are evenly distributed around the outer periphery of the dust removal hood, and the air outlet ends of all the air outlet pipes are inclined to the same side. Furthermore, the extension line of the air outlet end forms an angle with the center line of the dust removal hood. The air outlet pipes are connected to a negative pressure device.

[0006] A further option: the included angle is 30 to 45°.

[0007] A further option: the number of air outlet ducts is at least three.

[0008] A further solution: The air outlet duct and the negative pressure device are connected together via a flexible hose and a dust collection hood.

[0009] A further embodiment: the dust removal hood has a horn-shaped structure, and the horn-shaped part of the dust removal hood is located in the welding area.

[0010] A further solution: the dust collection hood has a trumpet-shaped structure.

[0011] A further solution: the air outlet pipes are arranged perpendicular to each other.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention cleverly combines a dust collector hood, a laser module, and a worktable to create a semi-enclosed cavity structure, preventing dust and metal debris from escaping. The layout of the exhaust duct ensures that the dust-collecting airflow within the dust collector hood forms a high-speed swirling flow centered on the laser module, either clockwise or counterclockwise. This unique swirling design greatly concentrates the dust-collecting airflow, improving dust collection efficiency.

[0014] The dust extraction port (flare) is parallel to the workbench surface, effectively increasing the coverage area of ​​the welding area. A flexible hose is used to connect the dust extraction hood 1 to the main dust extraction system, allowing for more flexible repositioning of the hood. It can form a semi-enclosed cavity in welding areas at different positions and heights, offering strong versatility. Attached Figure Description

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

[0016] Figure 2 This is a perspective view of the dust collector hood and the air outlet duct in this utility model;

[0017] Figure 3 This is a top view of the dust collector hood and the air outlet duct in this utility model;

[0018] In the diagram: 1-Dust hood, 2-Laser module, 3-Air outlet duct, 4-Hose, 5-Dust collection hood. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Please see Figure 1In this embodiment, a semi-enclosed vortex-type dust removal welding device includes a dust removal hood 1 and a laser module 2 disposed at the top of the dust removal hood 1. Air outlet pipes 3 are evenly distributed around the outer periphery of the dust removal hood 1, with all outlet ends of the pipes 3 inclined to the same side, and the extension lines of the outlet ends forming an angle with the center line of the dust removal hood 1. The outlet pipes 3 are connected to a negative pressure device. The laser module 2 generates a high-energy-density laser beam, which is focused on the battery cover and sealing position, melting the metal material at the welding point. Furthermore, the heat generated during the operation of the laser module 2 causes air convection within the dust removal hood 1. This convection interacts with the dust removal airflow, helping to maintain the dynamic balance of the airflow and making the vortex state of the dust removal airflow more stable.

[0022] Furthermore, the aforementioned included angle is preferably 30 to 45°. Preferably, the air outlet pipes 3 are perpendicular to each other, and all air outlet pipes 3 are parallel to the working plane, so as to make the airflow form a more stable vortex by tangential air outlet.

[0023] Furthermore, the number of air outlet ducts 3 is preferably four, and the air outlet ducts 3 are perpendicular to each other.

[0024] Furthermore, the exhaust duct 3 and the negative pressure device are connected together via a flexible hose 4 and a dust collection hood 5. The flexible hose 4 serves as a transport channel for the dust-laden airflow, introducing it into the overall dust removal system for collection and centralized treatment. The flexible hose has a certain degree of flexibility, allowing it to bend flexibly within a limited space to adapt to welding areas in different locations, thus better forming a semi-enclosed space within the dust collection hood 1. The dust-laden airflow is transported through the flexible hose 4 to the dust collection hood 5, converging the airflow from different exhaust ducts 3 together, achieving centralized treatment of the dust-laden airflow, and preparing it for subsequent unified delivery to the overall dust removal system.

[0025] Please continue reading. Figure 2-3 The dust collector hood 1 has a trumpet-shaped structure, and the trumpet-shaped end of the dust collector hood 1 is located in the welding area. Within the semi-enclosed cavity formed by the dust collector hood 1, the laser module 2, and the welding platform, the trumpet-shaped inner wall guides the airflow. Compared to ordinary shapes, the trumpet shape makes it easier for the airflow to form a high-speed vortex centered on the laser module 2, rotating clockwise or counterclockwise. Its larger opening (trumpet mouth) can collect more surrounding air, causing the airflow to gradually accelerate and rotate as it converges towards the center, like a vortex, engulfing metal debris and dust generated during welding into the vortex, thereby improving dust removal efficiency.

[0026] Furthermore, the dust collection hood 5 also has a trumpet-shaped structure. The trumpet-shaped opening is relatively large, which can collect the dust-laden airflow from the four air outlet pipes 3 more widely, thus improving the airflow collection efficiency.

[0027] In use, the dust hood 1 covers the welding area of ​​the work platform. The dust hood 1, laser module 2, and work platform together form a semi-enclosed area. During operation, the gas inside the dust hood 1 cannot escape and is forced into the dust collection hood 5 through the exhaust pipe 3 under the negative pressure of the main dust removal system. During use, the dust hood 1 can be flexibly moved according to the welding area to precisely align with the welding area, effectively improving the removal efficiency of welding debris and dust.

[0028] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0029] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. A semi-enclosed cyclone fume extraction welding apparatus characterised in that, The dust removal cover (1) is provided with the laser module (2) at the top end, the periphery of the dust removal cover (1) is uniformly distributed with the air outlet pipe (3), all the air outlet pipes (3) are inclined to the same side at the air outlet end, and the extension line of the air outlet end forms an included angle with the center line of the dust removal cover (1); the air outlet pipe (3) is connected with the negative pressure equipment.

2. The semi-enclosed cyclone duster welding apparatus of claim 1, wherein, The included angle is 30-45°.

3. The semi-enclosed cyclone duster welding apparatus of claim 1, wherein, The number of the air outlet pipe (3) is at least three.

4. The semi-enclosed cyclone duster welding apparatus of claim 1, wherein, The air outlet pipe (3) and the negative pressure equipment are connected together through the hose (4) and the dust collecting cover (5).

5. The semi-enclosed cyclone duster welding apparatus of claim 1, wherein, The dust removal cover (1) has a horn-shaped structure, and the horn mouth cover of the dust removal cover (1) is arranged in the welding area.

6. The semi-enclosed cyclone duster welding apparatus of claim 4, wherein, The dust collecting cover (5) has a horn-shaped structure.

7. The semi-enclosed cyclone duster welding apparatus of claim 1, wherein, The air outlet pipes (3) are arranged perpendicularly to each other.

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