Novel welding process protection device

Abstract

The utility model discloses a novel welding process protection device which comprises an upper sealing plate, an air inlet cavity assembly and a lower sealing plate. An upper cavity and a lower cavity are formed in the air inlet cavity assembly, and the same side faces of the two cavities are each provided with a threaded hole structure serving as an air inlet; the upper sealing plate and the lower sealing plate are installed on the top face and the bottom face of an upper cavity of the air inlet cavity assembly respectively, and groove structures are arranged on one sides of the upper sealing plate and the lower sealing plate and serve as a first air outlet and a second air outlet. Compressed air A enters the air inlet cavity assembly through the air inlet and then overflows from the first air outlet and the second air outlet, so that two air curtains B are formed, splashing welding slag generated in the laser welding process is prevented from being attached to a protection lens of the laser welding equipment, and the protection lens protection device is protected through the laser welding equipment. External compressed air forms an air curtain, welding slag splashed during welding is prevented from polluting the protection lens, the service life of the protection lens is prolonged, the replacement frequency of the protection lens is reduced, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of production and manufacturing of technical battery modules, and particularly relates to a novel protection device for the welding process. Background Art

[0002] As a core component of new energy, the production of power battery packs has received increasing attention in recent years. A power battery pack mainly consists of modules, a battery management system, and other electrical and mechanical devices. Among them, laser welding is required during the production process of battery modules. As the most important part in the production and manufacturing of modules, laser welding needs to be strictly controlled. During the laser welding process, affected by factors such as the material purity of the welded base material, laser stability, protective gas flow rate, and the stability of the dust removal mechanism, the welding effect of the final module is also affected. Spattered welding slag will be generated during the laser welding process, and the welding slag will adhere to the protective lens of the laser. The welding slag adhering to the protective lens will block the laser of the laser and thus affect the welding quality. To ensure the welding quality of the module, the protective lens of the laser needs to be replaced regularly during the production welding process. As a consumable during the production process, the protective lens increases the production cost. In order to extend the service life of the protective lens and reduce the replacement frequency of the protective lens, a welding protection device is needed to protect the protective lens of the laser welding equipment. Content of the Utility Model

[0003] To solve the technical problems in the background art, the utility model proposes a novel protection device for the welding process.

[0004] A novel protection device for the welding process proposed by the utility model includes an upper sealing plate, an air inlet cavity assembly, and a lower sealing plate;

[0005] An upper cavity and a lower cavity are provided in the air inlet cavity assembly, and a threaded hole structure is provided on the same side of the two cavities as an air inlet;

[0006] The upper sealing plate is installed on the top surface of the upper cavity of the air inlet cavity assembly, and there is a groove structure on one side as a first air outlet;

[0007] The lower sealing plate is fixed to the bottom surface of the lower cavity of the air inlet cavity assembly, and there is a groove structure on one side as a second air outlet;

[0008] Both the first air outlet and the second air outlet are communicated with the air inlet cavity assembly and are located on the side opposite to the air inlet of the air inlet cavity assembly;

[0009] Compressed air A enters the air inlet cavity assembly through the air inlet and then overflows from the first air outlet and the second air outlet, thereby forming two air curtains B to prevent the spattered welding slag generated during the laser welding process from adhering to the protective lens of the laser welding equipment.

[0010] Preferably, air inlet connectors are installed at both groups of the air inlets, and the air inlet connectors are used for connecting the air pipes of external compressed air.

[0011] Preferably, the widths of the first air outlet and the second air outlet are greater than or equal to the outer wall thickness of the air inlet cavity assembly, and their lengths are less than or equal to the inner cavity length of the air inlet cavity assembly.

[0012] Preferably, the joint surface between the upper sealing plate and the air inlet cavity assembly has a sealing effect to prevent external gas from overflowing from the joint surface between the upper sealing plate and the air inlet cavity assembly; the joint surface between the lower sealing plate and the air inlet cavity assembly has a sealing effect to prevent external compressed air from overflowing from the joint surface between the lower sealing plate and the air inlet cavity assembly.

[0013] Preferably, the upper sealing plate and the lower sealing plate are respectively fixed to the top surface and the bottom surface of the air inlet cavity assembly by screws.

[0014] In the present utility model, a novel welding process protection device is proposed. In the present utility model, through the protection lens protection device of the laser welding equipment, during the welding operation, the external compressed air forms an air curtain to block the welding slag flying during welding from polluting the protection lens, prolong the service life of the protection lens, reduce the replacement frequency of the protection lens, and reduce the production cost.

[0015] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall schematic diagram of the present utility model;

[0017] Figure 2 is the schematic diagram of the upper sealing plate structure of the present utility model;

[0018] Figure 3 is the schematic diagram of the air inlet cavity structure of the present utility model;

[0019] Figure 4 is the cross-sectional view of the air inlet cavity structure of the present utility model;

[0020] Figure 5 is the schematic diagram of the lower sealing plate structure of the present utility model.

[0021] Explanation of the reference numerals in the figures: 1. Upper sealing plate; 21. Air inlet cavity assembly; 22. Air inlet connector; 3. Lower sealing plate; 4. Screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar symbols represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0023] As Figures 1 - 5 shown, a new type of protection device for the welding process is used for protecting the lens of a laser welding device, and includes an upper sealing plate 1, an air inlet cavity assembly 21, and a lower sealing plate 3;

[0024] An upper cavity and a lower cavity are provided in the air inlet cavity assembly 21, and a threaded hole structure is provided on the same side of the two cavities as an air inlet;

[0025] The upper sealing plate 1 is installed on the top surface of the upper cavity of the air inlet cavity assembly 21, and there is a groove structure on one side as a first air outlet;

[0026] The lower sealing plate 3 is fixed to the bottom surface of the lower cavity of the air inlet cavity assembly 21, and there is a groove structure on one side as a second air outlet;

[0027] Both the first air outlet and the second air outlet are communicated with the air inlet cavity assembly 21 and are located on the side opposite to the air inlet of the air inlet cavity assembly 21;

[0028] Compressed air A enters the air inlet cavity assembly 21 through the air inlet, and then overflows from the first air outlet and the second air outlet, thereby forming two air curtains B.

[0029] During laser welding operations, the externally connected compressed air A enters the upper and lower cavities of the air inlet cavity assembly 21 through an externally connected air pipe connected to the air inlet joint 22. The compressed air A then overflows from the air outlets of the groove structures of the upper sealing plate 1 and the lower sealing plate 3 to form two air curtains B, which block the splashed welding slag generated during the laser welding process from adhering to the protective lens of the laser welding device.

[0030] Preferably, air inlet joints 22 are installed at both groups of the air inlets, and the air inlet joints 22 are used to connect the air pipes of the externally connected compressed air.

[0031] Preferably, the widths of the first air outlet and the second air outlet are greater than or equal to the outer wall thickness of the air inlet cavity assembly 21, and their lengths are less than or equal to the inner cavity length of the air inlet cavity assembly 21.

[0032] Preferably, the joint surface between the upper sealing plate 1 and the air inlet cavity assembly 21 has a sealing effect to prevent the externally connected gas from overflowing from the joint surface between the upper sealing plate 1 and the air inlet cavity assembly 21; the joint surface between the lower sealing plate 3 and the air inlet cavity assembly 21 has a sealing effect to prevent the externally connected compressed air from overflowing from the joint surface between the lower sealing plate 3 and the air inlet cavity assembly 21.

[0033] Preferably, the upper sealing plate 1 and the lower sealing plate 3 are respectively fixed to the top surface and the bottom surface of the air inlet cavity assembly 21 by screws 4.

[0034] Principle of the present utility model: By providing a protection device for the protective lens of a laser welding device, during welding operation, the protection device is located between the protective lens of the laser welding device and the welding workpiece. A high-strength air flow curtain is generated by externally connected compressed air to blow away the splashed welding slag generated during the welding process, preventing the splashed welding slag from adhering to the protective lens, thereby avoiding the protective lens being contaminated by the welding slag and affecting the service life of the protective lens.

[0035] It should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0036] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0037] In the present utility model, unless otherwise clearly specified and defined, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0038] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0039] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and inventive concept of the present utility model, making equivalent replacements or changes, shall be covered by the protection scope of the present utility model.

Claims

1. A new type of welding process protection device, characterized in that: It includes an upper cover plate (1), an air inlet chamber assembly (21) and a lower cover plate (3); An upper cavity and a lower cavity are provided inside the air inlet chamber assembly (21), and a threaded hole structure is provided on the same side of the two cavities as an air inlet; The upper cover plate (1) is installed on the top surface of the upper cavity of the air inlet chamber assembly (21), and there is a groove structure on one side as the first air outlet; The lower cover plate (3) is fixed to the bottom surface of the lower cavity of the air inlet chamber assembly (21), and there is a groove structure on one side as the second air outlet; Both the first air outlet and the second air outlet are communicated with the air inlet chamber assembly (21) and are located on the side opposite to the air inlet of the air inlet chamber assembly (21); Compressed air (A) enters the air inlet chamber assembly (21) through the air inlet and then overflows from the first air outlet and the second air outlet, thereby forming two air curtains (B).

2. The novel welding process protection device according to claim 1, wherein An air inlet joint (22) is installed at each of the two air inlets, and the air inlet joint (22) is used to connect the air pipe of the externally connected compressed air.

3. A novel welding process protection device according to claim 1, characterized in that, The widths of the first air outlet and the second air outlet are greater than or equal to the outer wall thickness of the air inlet chamber assembly (21), and their lengths are less than or equal to the inner cavity length of the air inlet chamber assembly (21).

4. A novel welding process protection device according to claim 1, characterized in that, The joint surface between the upper cover plate (1) and the air inlet chamber assembly (21) has a sealing effect to prevent external gas from overflowing from the joint surface between the upper cover plate (1) and the air inlet chamber assembly (21); the joint surface between the lower cover plate (3) and the air inlet chamber assembly (21) has a sealing effect to prevent externally connected compressed air from overflowing from the joint surface between the lower cover plate (3) and the air inlet chamber assembly (21).

5. A novel welding process protection device according to claim 1, characterized in that, Both the upper cover plate (1) and the lower cover plate (3) are respectively fixed to the top surface and the bottom surface of the air inlet chamber assembly (21) by screws (4).

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