Welding auxiliary device and welding equipment

By using a V-groove design and magnetically connected cover assembly, the compatibility and stability issues of traditional welding auxiliary devices when adapting to housing components of different sizes are solved, achieving efficient and precise welding positioning and fixation, and improving welding quality and efficiency.

CN224026859UActive Publication Date: 2026-03-24EVE ENERGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-22
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Traditional welding auxiliary devices lack compatibility when adapting to shell components of different sizes, resulting in positioning misalignment and reduced welding accuracy. Furthermore, existing adjustable clamping mechanisms are complex or the elastic materials deform severely under welding stress, making it difficult to guarantee stable positioning results.

Method used

The base, featuring a V-groove design, combined with a movable cover assembly, achieves self-centering and stable clamping by magnetic connection to automatically adapt to housing components of different sizes. The clearance groove and limit groove enhance ease of operation and precise fixation.

Benefits of technology

It enables flexible adaptation to housing components of different sizes, ensuring the stability and accuracy of the welding process, and improving operational efficiency and welding quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an auxiliary welding device and welding equipment. The auxiliary welding device comprises a base and a covering and pressing assembly. A V-shaped groove is formed in the base, and the V-shaped groove is used for placing the shell assembly; the covering and pressing assembly is movably connected with the base and used for pressing the top cover assembly on the base. The base is designed to be provided with a V-shaped groove, and the V-shaped groove is of a pit-shaped sunken structure. Observed from inside to outside, the distance between the side walls of the V-shaped groove tends to be gradually increased. The main function of the V-shaped groove is to accommodate and place the housing assembly. When the size of the shell assembly is relatively small, the shell assembly naturally falls to the position, close to the bottom, of the V-shaped groove; on the contrary, if the size of the shell assembly is large, the shell assembly can fall on the position, close to the top, of the V-shaped groove. The design ensures that no matter how the size of the shell assembly changes, the shell assembly can be stably placed in the V-shaped groove and cannot slide or incline.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of welding auxiliary device, especially welding auxiliary device and welding equipment. BACKGROUND

[0002] In the field of welding auxiliary device design, the traditional base structure usually adopts fixed size positioning groove or rigid clamp to realize the positioning and fixing of the shell assembly. Although this design can meet the basic positioning requirements, it has significant limitations in actual application: when the shell assembly size has tolerance or needs to adapt to different specifications, the fixed positioning structure will cause insufficient compatibility, often requiring multiple sets of special clamps for switching, which not only increases equipment cost, but also reduces operation efficiency. More seriously, when the workpiece size does not match the size of the positioning groove, assembly gap is easily generated, leading to positioning deviation during welding, directly affecting welding precision and product quality.

[0003] To solve the problem of multi-size adaptation in the prior art, some solutions use adjustable clamping mechanisms to adjust the positioning distance through screw rods, sliding rails and other mechanical structures. However, such structures often have the problems of complicated adjustment steps and high mechanical complexity, and are prone to wear accumulation during frequent adjustment, resulting in decreased positioning accuracy. Some other solutions attempt to use elastic materials or spring mechanisms to achieve self-adaptive clamping, but such designs are prone to deformation when subjected to mechanical stress during welding, making it difficult to ensure stable positioning effect.

[0004] In view of the above technical bottlenecks, there is an urgent need in the field for a new positioning structure with high adaptability, structural stability and easy operation. In particular, it is necessary to develop a positioning base that can automatically adapt to different size shell assemblies, without the need for manual adjustment, through innovative structural design to realize workpiece self-centering and stable clamping, while ensuring structural reliability under dynamic working conditions. SUMMARY

[0005] One object of the utility model is to provide a welding auxiliary device and welding equipment to solve the problem of poor adaptability of the welding auxiliary device.

[0006] To achieve the above object, the utility model provides a scheme: the welding auxiliary device comprises a base and a cover pressing assembly; the base is provided with a V-shaped groove for placing the shell assembly; the cover pressing assembly is movably connected with the base, and the cover pressing assembly is used for pressing the top cover assembly on the base.

[0007] Optionally, the base is provided with an avoidance groove, the avoidance groove and the V-shaped groove are in communication with each other, and the length direction of the avoidance groove and the length direction of the V-shaped groove intersect.

[0008] Optionally, the avoidance groove penetrates through the opposite two side surfaces of the base.

[0009] Optionally, the base is provided with a limiting slot, the opening direction of the limiting slot is the same as the opening direction of the V-shaped slot, and the limiting slot is used for placing the top cover assembly.

[0010] Optionally, the V-shaped slot has a first plane and a second plane, the first plane and the second plane intersect to form a V-shaped structure, the first plane is in a flat state, and the second plane is in a flat state.

[0011] Optionally, the V-shaped slot is curved by an arc surface.

[0012] Optionally, the V-shaped slot has a first side wall and a second side wall, the first side wall and the second side wall intersect to form a V-shaped structure, the first side wall is in a stepped state, and the second side wall is in a stepped state.

[0013] Optionally, the cover pressing assembly comprises a cover plate and a first magnetic member, the first magnetic member is arranged on the base, and the first magnetic member and the cover plate are magnetically connected when the cover plate presses the top cover assembly on the base.

[0014] The cover pressing assembly comprises a cover plate and a first magnetic member, the first magnetic member is arranged on the cover plate, and the first magnetic member and the base are magnetically connected when the cover plate presses the top cover assembly on the base.

[0015] The cover pressing assembly comprises a cover plate, a first magnetic member and a second magnetic member, the first magnetic member is arranged on the cover plate, the second magnetic member is arranged on the base, and the first magnetic member and the second magnetic member are magnetically connected when the cover plate presses the top cover assembly on the base.

[0016] Optionally, the cover pressing assembly comprises a cover plate and a rotating shaft, the rotating shaft is connected with the cover plate, the rotating shaft is rotationally connected with the base, the cover plate is provided with a through hole, and the through hole is used for allowing the laser to pass through.

[0017] The utility model also includes a kind of welding equipment, and welding equipment includes: laser and the welding auxiliary device of any one above, and welding auxiliary device is used for fixed shell assembly and top cover assembly, and laser is used to weld shell assembly and top cover assembly together.

[0018] The beneficial effect of the utility model lies in: the base is designed with a V-shaped groove, which presents a concave structure like a pit. When observed from inside to outside, the sidewall spacing of the V-shaped groove presents a gradually increasing trend. The main function of the V-shaped groove is to accommodate and place the shell assembly. When the size of the shell assembly is relatively small, it will naturally fall to the position close to the bottom of the V-shaped groove; on the contrary, if the size of the shell assembly is large, it will fall to the position close to the top of the V-shaped groove. Such design ensures that the shell assembly can be stably placed in the V-shaped groove regardless of the size change, and sliding or tilting does not occur. Therefore, the base can flexibly adapt to shell assemblies of various sizes through the ingenious V-shaped groove design, thereby significantly expanding the application range and flexibility of the welding auxiliary device. In addition, the cover pressing assembly is movably connected with the base, which means that after the shell assembly and the top cover assembly are placed in the preset position, the cover pressing assembly and the base can be fixed together, so that the precise fixation of the top cover assembly can be realized, and the stability and accuracy of the whole welding process can be ensured. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the structures shown in the drawings without creative labor for those skilled in the art.

[0020] Figure 1 It is the structure schematic view of the welding auxiliary device and the battery cooperated together provided by the embodiment of the utility model.

[0021] Figure 2 It is the structure schematic view of the welding auxiliary device provided by the embodiment of the utility model.

[0022] Figure 3 It is the side view structure schematic view of the welding auxiliary device in one embodiment provided by the utility model.

[0023] Figure 4 It is the side view structure schematic view of the welding auxiliary device in another embodiment provided by the utility model.

[0024] Figure 5 It is the side view structure schematic view of the welding auxiliary device in another embodiment provided by the utility model.

[0025] Figure 6 It is the side view structure schematic view of the welding auxiliary device in another embodiment provided by the utility model. The reference signs in the drawings are explained as follows.

[0026] Welding auxiliary device 100, first support 10, positioning hole 101, first main body part 12

[0027] First fitting part 14, second support 20, second main body part 21, second fitting part 22, positioning column 23, column part 24, support part 25, first plate 26, second plate 27, round hole 102, waist-shaped hole 103

[0028] First column 28, second column 29. DETAILED DESCRIPTION

[0029] The embodiments of the present application will be described in detail below with reference to the drawings. It should be noted that the listed embodiments are only a part of the present application, rather than all possible embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0030] Please refer to Figure 1 and Figure 2 , Figure 1 is a structure schematic view of the welding auxiliary device and the battery cooperating together provided by the embodiment of the present application, Figure 2 is a structure schematic view of the welding auxiliary device provided by the embodiment of the present application.

[0031] The present application relates to a kind of welding auxiliary device, the device is specially designed for in welding process to the battery is accurately positioned and fixed.Electricity battery itself is composed of two main parts, namely shell assembly 00 and top cover assembly 01.Shell assembly 00 is composed of a shell and a group of pole piece, and top cover assembly 01 is composed of a top cover and a group of pole column.In welding process, pole column group is welded together with pole piece group, to ensure the electrical conductivity of battery.The welding auxiliary device of the present application includes two main parts: base 10 and cover pressing assembly 20.A V-shaped groove 12 is formed in base 10, and the V-shaped groove 12 has concave structure with pit, which is used to place shell assembly 00.The shell is in close contact with the groove wall of V-shaped groove 12, so as to effectively limit the shell.Cover pressing assembly 20 is movably connected with base 10, and its main function is to press top cover assembly 01 on base 10, to ensure the stability and accurate alignment of battery assembly during welding process.

[0032] In the present embodiment, the base 10 is designed with a V-shaped groove 12, which presents a concave recess structure. When viewed from the inside to the outside, the sidewall spacing of the V-shaped groove 12 presents a gradually increasing trend. The main function of this V-shaped groove 12 is to accommodate and place the shell assembly 00. When the shell assembly 00 is relatively small in size, it will naturally fall into the position close to the bottom of the V-shaped groove 12; on the contrary, if the shell assembly 00 is relatively large in size, it will fall into the position close to the top of the V-shaped groove 12. Such a design ensures that the shell assembly 00 can be stably placed in the V-shaped groove 12 regardless of the size change, and no sliding or tilting occurs. Therefore, the base 10 can flexibly adapt to shell assemblies 00 of various sizes through the ingenious design of the V-shaped groove 12, thereby significantly expanding the application range and flexibility of the welding auxiliary device. In addition, the cover pressing assembly 20 is movably connected with the base 10, which means that after the shell assembly 00 and the top cover assembly 01 are placed in the preset position, the cover pressing assembly 20 and the base 10 can be fixed together, so that the precise fixation of the top cover assembly 01 can be achieved, ensuring the stability and accuracy of the entire welding process.

[0033] In the present embodiment, the base 10 is designed with a V-shaped groove 12, which presents a concave recess structure. When viewed from the inside to the outside, the sidewall spacing of the V-shaped groove 12 presents a gradually increasing trend. The main function of this V-shaped groove 12 is to accommodate and place the shell assembly 00. When the shell assembly 00 is relatively small in size, it will naturally fall into the position close to the bottom of the V-shaped groove 12; on the contrary, if the shell assembly 00 is relatively large in size, it will fall into the position close to the top of the V-shaped groove 12. Such a design ensures that the shell assembly 00 can be stably placed in the V-shaped groove 12 regardless of the size change, and no sliding or tilting occurs. Therefore, the base 10 can flexibly adapt to shell assemblies 00 of various sizes through the ingenious design of the V-shaped groove 12, thereby significantly expanding the application range and flexibility of the welding auxiliary device. In addition, the cover pressing assembly 20 is movably connected with the base 10, which means that after the shell assembly 00 and the top cover assembly 01 are placed in the preset position, the cover pressing assembly 20 and the base 10 can be fixed together, so that the precise fixation of the top cover assembly 01 can be achieved, ensuring the stability and accuracy of the entire welding process. Figure 2 As shown in FIG. 6, the length direction of the avoidance groove 14 is perpendicular to the length direction of the V-shaped groove 12, and such a perpendicular intersection design provides intuitive convenience for operation. However, it should be pointed out that in other embodiments, the length direction of the avoidance groove 14 and the length direction of the V-shaped groove 12 can also be designed to be not perpendicular to each other, they can be intersected at an acute angle or an obtuse angle, and such a design can also meet the operation requirements.

[0034] In this embodiment, the avoidance groove 14 is designed to run through two opposite sides of the base 10. Specifically, the line between the two opposite sides of the base 10 is perpendicular to the opening direction of the V-shaped groove 12. Such a design allows the shell assembly 00 to easily fall into the V-shaped groove 12 from the opening direction of the V-shaped groove 12. When the avoidance groove 14 runs completely through the two opposite sides of the base 10, the user will find that more redundant space is provided due to the existence of the avoidance groove when installing or removing the shell assembly 00, thereby making the entire operation process more convenient and smooth.

[0035] In this embodiment, the base 10 is designed to have a limiting groove 16, and the opening direction of the limiting groove 16 is consistent with the opening direction of the V-shaped groove 12. The main function of the limiting groove 16 is to accommodate the top cover assembly 01, so as to ensure that the top cover assembly 01 remains stable during the welding process and does not deviate in position. The side wall of the limiting groove 16 precisely positions the top cover assembly 01, thereby avoiding any inaccuracy or error that may occur during welding. In addition, since the opening direction of the limiting groove 16 is consistent with the opening direction of the V-shaped groove 12, it brings great convenience to the user. The user only needs to operate in one direction to easily place the shell assembly 00 and the top cover assembly 01 together on the base 10, greatly simplifying the assembly process and improving work efficiency.

[0036] Please refer to Figure 3 as shown in the figure, Figure 3 is a side view structural schematic diagram of a welding auxiliary device provided in an embodiment of the present application.

[0037] In this embodiment, the V-shaped groove 12 is designed to include two main planar regions, namely a first plane 121 and a second plane 122. The two planes intersect to form a typical V-shaped structure, wherein the first plane 121 and the second plane 122 both exhibit a flat and straight state. Specifically, the flatness of the first plane 121 means that the line between any two points selected on the plane will completely lie in the same plane without any bending or twisting. Such a design ensures that the first plane 121 and the second plane 122 can fully contact the shell assembly 00 of the corresponding size. Such contact is not only stable, but also maximizes the contact area due to the flatness of the plane, thereby significantly increasing the application range and compatibility of the V-shaped groove 12, so that it can adapt to more types of shell assemblies.

[0038] Please refer to Figure 4 as shown in the figure, Figure 4 is a side view structural schematic diagram of a welding auxiliary device provided in another embodiment of the present application.

[0039] In the embodiment, the V-shaped groove 12 is formed by bending an arc surface. The arc surface extends from the bottom to the top of the V-shaped groove 12, and the curvature gradually increases. This design matches the arc of the outer surface of the shell assembly 00, thereby effectively increasing the contact area between the shell and the V-shaped groove 12. In this way, the stability of the installation is significantly improved.

[0040] Referring to Figure 5 as shown in the figure, Figure 5 is a side view structure schematic diagram of the welding auxiliary device provided by another embodiment of the utility model.

[0041] In the embodiment, the V-shaped groove 12 has a first side wall 123 and a second side wall 124, which intersect each other and form a typical V shape. Further, the first side wall 123 has a stepped structure, and the second side wall 124 also has a stepped structure. Taking the first side wall 123 as an example, the stepped structure is composed of a series of alternating horizontal surfaces and vertical surfaces, similar to the shape of a staircase. When the shell assembly 00 is placed into the V-shaped groove 12, the horizontal surfaces can provide support for the shell assembly 00, and the vertical surfaces can limit the shell assembly 00. Through the cooperation of the horizontal surfaces and the vertical surfaces, the stability of the shell assembly 00 during installation can be significantly improved.

[0042] Referring to Figure 6 as shown in the figure, Figure 6 is a side view structure schematic diagram of the welding auxiliary device provided by another embodiment of the utility model.

[0043] In the embodiment, the cover pressing assembly 20 and the base 10 are tightly connected by magnetic attraction. Specifically, the magnetic attraction can be achieved by the mutual attraction between magnets, or the mutual attraction between magnets and ferromagnetic materials. This design allows users to easily separate the cover pressing assembly 20 from the base 10 without the help of any disassembly tools, thereby greatly improving the convenience of the disassembly process.

[0044] In certain application scenarios, the cover pressing assembly 20 is composed of two parts, namely the cover plate 21 and the first magnetic member 23. The first magnetic member 23 is carefully placed in the corresponding position of the base 10. When the cover plate 21 is used to press and fix the top cover assembly 01 on the base 10, a magnetic connection is formed between the first magnetic member 23 and the cover plate 21. This magnetic connection ensures the close combination between the cover plate 21 and the top cover assembly 01, thereby improving the stability and reliability of the overall structure. In addition, the cover plate 21 is made of materials that contain at least one of iron, nickel, cobalt, and gadolinium. The selection of these metal elements is based on their excellent magnetic and mechanical properties, ensuring that the cover plate 21 can provide sufficient magnetic force when interacting with the first magnetic member 23 to maintain the stability and functionality of the cover pressing assembly 20.

[0045] In certain application scenarios, the cover pressing assembly 20 is composed of two parts, namely the cover plate 21 and the first magnetic member 23. The first magnetic member 23 is carefully placed in the corresponding position of the base 10. When the cover plate 21 is used to press and fix the top cover assembly 01 on the base 10, a magnetic connection is formed between the first magnetic member 23 and the cover plate 21. This magnetic connection ensures the close combination between the cover plate 21 and the top cover assembly 01, thereby improving the stability and reliability of the overall structure. In addition, the cover plate 21 is made of materials that contain at least one of iron, nickel, cobalt, and gadolinium. The selection of these metal elements is based on their excellent magnetic and mechanical properties, ensuring that the cover plate 21 can provide sufficient magnetic force when interacting with the first magnetic member 23 to maintain the stability and functionality of the cover pressing assembly 20.

[0046] In certain application scenarios, the cover pressing assembly 20 is composed of several key parts, including the cover plate 21, the first magnetic member 23, and the second magnetic member 25. The first magnetic member 23 is carefully placed on the surface of the cover plate 21, while the second magnetic member 25 is appropriately installed in the corresponding position of the base 10. When the cover plate 21 firmly presses the top cover assembly 01 on the base 10 through its own pressure, a magnetic connection is formed between the first magnetic member 23 and the second magnetic member 25, which not only ensures the close combination between the components but also provides a convenient possibility for disassembly and reassembly.

[0047] In this embodiment, the cover pressing assembly 20 is designed to include a cover plate 21 and a rotating shaft 27. These two parts are closely connected through a connecting structure, and the rotating shaft 27 is not only connected with the cover plate 21, but also forms a rotating connection mechanism with the base 10. This design ensures that the cover plate 21 can maintain stable connection with the base 10 during the cover pressing operation, i.e., covering the top cover assembly 01, or when the cover pressing operation is not performed, thereby avoiding the problem of the cover plate 21 being lost during use. In addition, a through hole 29 is specially provided on the cover plate 21, which allows the laser beam to pass through. Through such a design, the laser beam can be effectively guided and concentrated in a fixed area, which has the benefit of reducing potential damage to other components caused by the laser, thereby avoiding the problem of component burning caused by laser scattering.

[0048] The utility model involved in the present application also protects a welding device with unique structure and function. Specifically, the welding device includes a laser and a welding auxiliary device, which work together to achieve efficient welding. Among them, the welding auxiliary device is designed to stably fix the shell assembly 00 and the top cover assembly 01, ensuring that these two assemblies can be kept in place during welding, thereby ensuring the welding quality. The laser plays a core role in welding, which tightly welds the shell assembly 00 and the top cover assembly 01 together through precisely controlled laser beams to form a solid and well-sealed overall structure. This welding device not only improves the welding efficiency, but also ensures the strength and durability of the welded part, which is suitable for various industrial production occasions with strict requirements on welding quality. In addition, the welding device is also equipped with an intelligent control system, which can monitor various parameters in the welding process in real time and automatically adjust the laser power and welding speed according to the feedback to ensure that each welding achieves the best effect. This highly automated design not only reduces the operation difficulty, but also greatly improves the production efficiency and product quality. The utility model optimizes the magnetic connection and rotating mechanism to ensure the stability and safety of the components,

[0049] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present utility model are only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture, and if the specific posture changes, the directional indications will also change accordingly.

[0050] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or can have a centering element present at the same time. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or can be indirectly connected to the other element through a centering element.

[0051] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features or implying the number of the technical features indicated. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, nor in the protection scope required by the present application.

[0052] The above is only the preferred embodiment of the present application, and does not limit the patent range of the present application, any equivalent structural transformation made by using the content of the present application specification and drawings, or directly / indirectly applied in other related technical fields under the utility model concept of the present application are included in the patent protection scope of the present application.

Claims

1. A welding auxiliary device, characterized in that, The welding auxiliary device also includes: The base has a V-shaped groove for housing the housing assembly; and A cover pressing assembly is movably connected to the base, and the cover pressing assembly is used to press the top cover assembly onto the base.

2. The welding auxiliary device according to claim 1, characterized in that, The base has a clearance groove, which is connected to the V-shaped groove. The length direction of the clearance groove intersects the length direction of the V-shaped groove.

3. The welding auxiliary device according to claim 2, characterized in that, The clearance groove extends through the opposite two sides of the base.

4. The welding auxiliary device according to claim 1, characterized in that, The base has a limiting groove, the opening direction of which is the same as the opening direction of the V-shaped groove, and the limiting groove is used to place the top cover assembly.

5. The welding auxiliary device according to claim 1, characterized in that, The V-shaped groove has a first plane and a second plane, which intersect to form a V shape. The first plane is flat and the second plane is flat.

6. The welding auxiliary device according to claim 1, characterized in that, The V-shaped groove is formed by bending an arc-shaped surface.

7. The welding auxiliary device according to claim 1, characterized in that, The V-shaped groove has a first sidewall and a second sidewall, which intersect to form a V shape. The first sidewall is stepped, and the second sidewall is stepped.

8. The welding auxiliary device according to any one of claims 1-7, characterized in that, The cover assembly includes a cover plate and a first magnetic element, the first magnetic element being disposed on the base. When the cover plate presses the top cover assembly onto the base, the first magnetic element and the cover plate are magnetically connected; or The cover assembly includes a cover plate and a first magnetic element, the first magnetic element being disposed on the cover plate. When the cover plate presses the top cover assembly onto the base, the first magnetic element and the base are magnetically connected; or The cover assembly includes a cover plate, a first magnetic element, and a second magnetic element. The first magnetic element is disposed on the cover plate, and the second magnetic element is disposed on the base. When the cover plate presses the top cover assembly onto the base, the first magnetic element and the second magnetic element are magnetically connected.

9. The welding auxiliary device according to any one of claims 1-7, characterized in that, The cover assembly includes a cover plate and a rotating shaft. The rotating shaft is connected to the cover plate and rotatably connected to the base. The cover plate has a through hole for allowing laser to pass through.

10. A welding device, characterized in that, The welding equipment includes a laser and a welding auxiliary device as described in any one of claims 1 to 9, the welding auxiliary device being used to fix the housing assembly and the top cover assembly, and the laser being used to weld the housing assembly and the top cover assembly together.