An automatic welding equipment for copper foil splicing

CN224630028UActive Publication Date: 2026-08-14JIANGMEN KINGBOARD LAMINATES LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-09
Publication Date
2026-08-14

AI Technical Summary

Technical Problem

[0004]针对在对多层铜箔进行焊接时,一般通过手持铜箔进入热压焊机的内部,由于铜具有较强的导热性能,进而在对铜箔进行热压焊接时,容易对工作人员造成伤害,从而降低了其实用性的问题,本实用新型提出一种铜箔接带自动焊接设备,以克服现有相关技术所存在的上述技术问题

Benefits of technology

[0021]1、本实用新型通过将铜箔放置在限位组件的顶端,并对限位组件之间的距离进行调节,从而使限位组件对铜箔的两侧进行限位,然后启动升降组件,使其配合限位组件带动铜箔向上移动,以使铜箔的顶端与夹持组件的底端相贴合,同时限位组件能够与移动组件相互配合,然后启动移动组件,使其沿着支撑组件的方向进行移动,并使其带动限位组件和夹持组件进行移动,以便于配合限位组件和夹持组件带动铜箔向焊接组件的内侧进行移动,然后启动焊接组件,使其对铜箔进行热压焊接加工,进而能够自动对铜箔进行焊接,避免对工作人员造成伤害,提高了该铜箔接带自动焊接设备的实用性。

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Abstract

This utility model discloses an automatic copper foil splicing welding device, relating to the field of copper foil splicing welding technology. The device includes a housing. By placing the copper foil at the top of a limiting assembly and adjusting the distance between the limiting assemblies, the device limits the copper foil on both sides. Then, a lifting assembly is activated, cooperating with the limiting assemblies to move the copper foil upwards, so that the top of the copper foil is in contact with the bottom of the clamping assembly. Simultaneously, the limiting assemblies cooperate with a moving assembly; activating the moving assembly moves it along the direction of the supporting assembly, causing it to move the limiting and clamping assemblies, thus moving the copper foil inwards towards the welding assembly. The welding assembly is then activated to perform hot-press welding on the copper foil, thereby automatically welding the copper foil, avoiding injury to workers, and improving the practicality of the automatic copper foil splicing welding device.
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Description

Technical Field

[0001] This utility model belongs to the field of copper foil splicing technology, and more specifically, it relates to an automatic copper foil splicing welding device. Background Technology

[0002] Copper foil connectors are a key connection process in lithium-ion battery manufacturing. Specifically, they refer to the process of reliably connecting the copper foil current collector inside the battery to the external conductive electrode tabs. As a bridge for the battery, the copper foil collects the current generated by the active material inside the battery and transmits it to the electrode tabs for output to the external circuit.

[0003] In existing technology, multiple sets of copper foil are stacked and aligned, and one end is placed inside the thermoforming machine. The thermoforming machine is then started to thermo-press weld one end of the multi-layer copper foil, and then the other end is thermo-press welded. However, when welding multiple sets of copper foil, the copper foil is usually held by hand and placed inside the thermoforming machine. Since copper has strong thermal conductivity, it is easy to cause injury to the workers when thermo-press welding the copper foil, thus reducing its practicality. Utility Model Content

[0004] In addressing the issue that when welding multi-layer copper foil, the copper foil is typically inserted into the thermoforming machine by hand, which can easily cause injury to workers due to copper's high thermal conductivity, thus reducing its practicality, this invention proposes an automatic copper foil splicing welding device to overcome the aforementioned technical problems in existing related technologies.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to an automatic copper foil splicing welding device, comprising a housing:

[0007] The housing is equipped with a lifting assembly, a limiting assembly, a supporting assembly, a moving assembly, a clamping assembly, and a welding assembly.

[0008] The lifting component has its top end fixedly connected to the bottom end of the limiting component, so that the lifting component drives the limiting component to move up and down, thereby adjusting the height of the limiting component.

[0009] A support component is slidably disposed inside the outer surface of the movable component, so as to restrict the movement direction of the movable component.

[0010] The clamping component has its outer surface slidingly disposed with the interior of the moving component, so that the moving component drives the clamping component to move, and the clamping component is disposed on the upper side of the limiting component, so that the limiting component cooperates with the clamping component to clamp the copper foil;

[0011] A welding assembly, the bottom of which is fixedly installed to the top of the housing, so that the welding assembly can weld copper foil.

[0012] Furthermore, the lifting assembly includes a first electric push rod, the top end of which is fixedly installed inside the housing, a lifting block is fixedly installed at the telescopic end of the first electric push rod, a U-shaped frame is slidably arranged inside the lifting block, and a limit rod is fixedly connected to the bottom end of the lifting block, with the outer surface of the limit rod slidably arranged inside the housing.

[0013] Furthermore, the limiting component includes a support plate, the bottom end of which is fixedly connected to the top end of the U-shaped frame, and a support base is fixedly connected to the bottom end of the support plate. A bidirectional screw is rotatably installed inside the support base, and a knob is fixedly connected to both ends of the bidirectional screw.

[0014] The support plate has two sets of limiting plates that slide inside, and the interior of both sets of limiting plates is threadedly connected to the threaded surface of the bidirectional screw.

[0015] Furthermore, the support assembly includes a support frame, the bottom end of which is fixedly connected to the top end of the housing, a connecting plate is fixedly connected to the top end of the support frame, and a support block is fixedly connected to the bottom end of the connecting plate.

[0016] Furthermore, the movable component includes a mounting plate, one side of which is fixedly connected to one side of the support frame. A second electric push rod is fixedly mounted on one side of the mounting plate. An L-shaped plate is fixedly mounted on the telescopic end of the second electric push rod. A slider is fixedly connected to one end of the L-shaped plate. The outer surface of the slider is slidably disposed with the inside of the support block.

[0017] A movable plate is fixedly connected to the bottom of the slider, and a positioning cylinder is fixedly connected to the bottom of the movable plate. A positioning rod is sleeved inside the positioning cylinder, and the bottom end of the positioning rod is fixedly connected to the top end of the support plate.

[0018] Furthermore, the clamping assembly includes a sliding rod, the outer surface of which is slidably disposed with the interior of the moving plate, a limit block is fixedly connected to the top end of the sliding rod, a pressure plate is fixedly connected to the bottom end of the sliding rod, a spring is fixedly connected to the top end of the pressure plate, and one end of the spring is connected to the bottom end fixing rod of the moving plate.

[0019] Furthermore, the welding assembly includes a cylinder, the bottom end of which is fixedly mounted to the top end of the housing, and a hot press block is fixedly mounted on the telescopic end of the cylinder.

[0020] This utility model has the following beneficial effects:

[0021] 1. This utility model places the copper foil at the top of the limiting component and adjusts the distance between the limiting components, thereby limiting the copper foil on both sides. Then, the lifting component is activated, which works with the limiting component to move the copper foil upward so that the top of the copper foil is in contact with the bottom of the clamping component. At the same time, the limiting component can cooperate with the moving component. Then, the moving component is activated, which moves along the direction of the supporting component and moves the limiting component and the clamping component to move the copper foil towards the inside of the welding component. Then, the welding component is activated to perform hot-press welding on the copper foil, thereby automatically welding the copper foil, avoiding injury to workers, and improving the practicality of the automatic copper foil welding equipment.

[0022] 2. In this invention, the top end of the copper foil is brought into contact with the bottom end of the pressure plate by a support plate. As the support plate moves continuously, it causes the copper foil to press against the pressure plate, thereby causing the pressure plate to move upward. Since a sliding rod is fixedly connected to the top end of the pressure plate, and the outer surface of the sliding rod is slidably disposed with the inside of the moving plate, when the pressure plate moves, it can move along the inside of the moving plate in conjunction with the sliding rod. At the same time, when the pressure plate moves, it can compress the spring fixed at the top end, so that the compression stress of the spring, together with the pressure plate, acts on the copper foil, thereby improving the stability of the copper foil during movement.

[0023] Of course, any product implementing this utility model does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of this utility model from a right-side view.

[0027] Figure 3 This is a schematic diagram of the cross-sectional structure of the present invention from a frontal view.

[0028] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of the local structure at point A;

[0029] Figure 5This is a schematic diagram of the internal structure of the mobile component of this utility model;

[0030] Figure 6 For the present utility model Figure 5 An enlarged schematic diagram of the local structure at point B.

[0031] The attached diagram lists the components represented by each number as follows:

[0032] 1. Housing; 2. Lifting assembly; 201. First electric push rod; 202. Lifting block; 203. U-shaped frame; 204. Limiting rod; 3. Limiting assembly; 301. Support plate; 302. Support seat; 303. Bidirectional screw; 304. Knob; 305. Limiting plate; 4. Support assembly; 401. Support frame; 402. Connecting plate; 403. Support block; 5. Moving assembly; 501. Mounting plate; 502. Second electric push rod; 503. L-shaped plate; 504. Slider; 505. Moving plate; 506. Positioning cylinder; 507. Positioning rod; 6. Clamping assembly; 601. Sliding rod; 602. Limiting block; 603. Pressure plate; 604. Spring; 7. Welding assembly; 701. Cylinder; 702. Hot pressing block. Detailed Implementation

[0033] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0034] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements 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 the utility model.

[0035] Please see Figures 1-6 As shown, this utility model is an automatic copper foil splicing welding device, including a housing 1:

[0036] The housing 1 is respectively provided with a lifting assembly 2, a limiting assembly 3, a supporting assembly 4, a moving assembly 5, a clamping assembly 6, and a welding assembly 7;

[0037] The lifting component 2 is fixedly connected at its top end to the bottom end of the limiting component 3, so that the lifting component 2 drives the limiting component 3 to rise and fall, thereby adjusting the height of the limiting component 3.

[0038] The support component 4 is slidably disposed inside the outer surface of the movable component 5 so that the support component 4 restricts the movement direction of the movable component 5;

[0039] The clamping component 6 has its outer surface slidably disposed with the interior of the moving component 5, so that the moving component 5 drives the clamping component 6 to move, and the clamping component 6 is disposed on the upper side of the limiting component 3, so that the limiting component 3 cooperates with the clamping component 6 to clamp the copper foil.

[0040] The welding assembly 7 is fixedly installed at its bottom end to the top end of the housing 1 so that the welding assembly 7 can weld the copper foil.

[0041] In use, by activating the lifting assembly 2, the limiting assembly 3 fixed at the telescopic end moves downward. Then, the copper foil is placed on the top of the limiting assembly 3, and the limiting assembly 3 is rotated so that it moves while rotating, thereby limiting the copper foil on both sides. Then, the lifting assembly 2 is activated again, which works with the limiting assembly 3 to move the copper foil upward so that the top of the copper foil is in contact with the bottom of the clamping assembly 6. As the limiting assembly 3 continues to move, the pressure applied to the copper foil by the clamping assembly 6 increases. At the same time, the limiting assembly 3 can cooperate with the moving assembly 5. Then, the moving assembly 5 is activated, which moves along the direction of the support assembly 4 that is slidably set on the outer surface. This causes the moving assembly 5 to move the limiting assembly 3 and the clamping assembly 6 that is slidably set inside, so that they work together to move the copper foil to the inside of the welding assembly 7. Then, the welding assembly 7 is activated to perform hot-press welding on the copper foil.

[0042] This invention places the copper foil at the top of the limiting component 3 and adjusts the distance between the limiting components 3, thereby limiting the copper foil on both sides. Then, the lifting component 2 is activated, which works with the limiting component 3 to move the copper foil upward so that the top of the copper foil is in contact with the bottom of the clamping component 6. At the same time, the limiting component 3 can cooperate with the moving component 5. Then, the moving component 5 is activated, which moves along the direction of the supporting component 4 and moves the limiting component 3 and the clamping component 6, so that they can work together to move the copper foil towards the inside of the welding component 7. Then, the welding component 7 is activated to perform hot-press welding on the copper foil, thereby automatically welding the copper foil, avoiding injury to workers, and improving the practicality of the automatic copper foil welding equipment.

[0043] In one embodiment, the lifting assembly 2 includes a first electric push rod 201. The top end of the first electric push rod 201 is fixedly installed inside the housing 1. A lifting block 202 is fixedly installed at the telescopic end of the first electric push rod 201. A U-shaped frame 203 is slidably arranged inside the lifting block 202. A limit rod 204 is fixedly connected to the bottom end of the lifting block 202. The outer surface of the limit rod 204 is slidably arranged inside the housing 1.

[0044] The first electric push rod 201 drives the lifting block 202 installed at the output end to move, so that the lifting block 202 drives the U-shaped frame 203 that is slidably set inside to move, so as to adjust the height of the U-shaped frame 203. At the same time, when the lifting block 202 moves, it can drive the limiting rod 204 fixed at the bottom end to slide along the inner wall of the housing 1, so that the limiting rod 204 restricts the movement direction of the lifting block 202, thereby improving the stability of the lifting block 202 during the movement process.

[0045] In one embodiment, the limiting component 3 includes a support plate 301, the bottom end of the support plate 301 is fixedly connected to the top end of the U-shaped frame 203, the bottom end of the support plate 301 is fixedly connected to a support base 302, and a bidirectional screw 303 is rotatably provided inside the support base 302. Both ends of the bidirectional screw 303 are fixedly connected to a knob 304.

[0046] The support plate 301 has two sets of limiting plates 305 that are slidably arranged inside, and the interior of both sets of limiting plates 305 is threadedly connected to the threaded surface of the bidirectional screw 303.

[0047] By rotating the knob 304, the bidirectional screw 303 fixed on one side is rotated. Since the threaded surfaces of the bidirectional screw 303 are connected to the internal threads of the two sets of limiting plates 305 respectively, and the two sets of limiting plates 305 are symmetrical, when the bidirectional screw 303 rotates, it can drive the two sets of limiting plates 305 to move in opposite directions. This makes it easy to adjust the distance between the two sets of limiting plates 305 to suit copper foils of different widths, thereby improving the applicability of the automatic copper foil splicing welding equipment.

[0048] When the U-shaped frame 203 moves up and down with the lifting block 202, it can drive the support plate 301 fixed at the top to move. When the support plate 301 moves down, it is convenient to place the copper foil at the top of the support plate 301. When the support plate 301 moves up, it can drive the copper foil to move up.

[0049] In one embodiment, the support component 4 includes a support frame 401, the bottom end of which is fixedly connected to the top end of the housing 1, a connecting plate 402 is fixedly connected to the top end of the support frame 401, and a support block 403 is fixedly connected to the bottom end of the connecting plate 402.

[0050] The support frame 401 is H-shaped, and there are two sets of connecting plates 402, so that one side of each set of connecting plates 402 is fixedly connected to the top of the support frame 401, thereby enabling the two sets of connecting plates 402 to support the top two ends of the support block 403, thus improving the stability of the support block 403 during use.

[0051] In one embodiment, the moving component 5 includes a mounting plate 501, one side of which is fixedly connected to one side of a support frame 401. A second electric push rod 502 is fixedly mounted on one side of the mounting plate 501. An L-shaped plate 503 is fixedly mounted on the telescopic end of the second electric push rod 502. A slider 504 is fixedly connected to one end of the L-shaped plate 503. The outer surface of the slider 504 is slidably disposed with the interior of the support block 403.

[0052] A movable plate 505 is fixedly connected to the bottom end of the slider 504, and a positioning cylinder 506 is fixedly connected to the bottom end of the movable plate 505. A positioning rod 507 is sleeved inside the positioning cylinder 506, and the bottom end of the positioning rod 507 is fixedly connected to the top end of the support plate 301.

[0053] When the support plate 301 rises and falls with the movement of the U-shaped frame 203, it causes the positioning rod 507 fixed at the top to rise, so that the positioning rod 507 is inserted into the positioning cylinder 506. This connects the support plate 301, the positioning rod 507, and the positioning cylinder 506 to the moving plate 505. Then, by activating the second electric push rod 502, the L-shaped plate 503 installed at the telescopic end is moved, causing the L-shaped plate 503 to move the slider 504 fixed at one end. Due to the outer surface of the slider 504... The slider 504 is slidably disposed inside the support block 403, and the bottom end of the slider 504 is fixedly connected to the top end of the moving plate 505. Thus, when the slider 504 moves, it can drive the moving plate 505 to move along the direction of the support block 403, so that the moving plate 505, together with the positioning cylinder 506 and the positioning rod 507, drives the support plate 301 to move. This allows the support plate 301, together with the U-shaped frame 203 fixed at the bottom end, to move along the direction of the lifting block 202, thereby facilitating the movement of the copper foil by the support plate 301.

[0054] In one embodiment, the clamping assembly 6 includes a sliding rod 601, the outer surface of which is slidably disposed with respect to the interior of the moving plate 505. A limit block 602 is fixedly connected to the top end of the sliding rod 601, and a pressure plate 603 is fixedly connected to the bottom end of the sliding rod 601. A spring 604 is fixedly connected to the top end of the pressure plate 603, and one end of the spring 604 is connected to the bottom end fixing rod of the moving plate 505.

[0055] When the support plate 301 moves up and down with the movement of the U-shaped frame 203, the top of the copper foil is brought into contact with the bottom of the pressure plate 603. As the support plate 301 continues to move, it causes the copper foil to press against the pressure plate 603, thereby causing the pressure plate 603 to move upward. Since the top of the pressure plate 603 is fixedly connected to the sliding rod 601, and the outer surface of the sliding rod 601 is slidably disposed with the inside of the moving plate 505, when the pressure plate 603 moves, it can move along the inside of the moving plate 505 in conjunction with the sliding rod 601. At the same time, when the pressure plate 603 moves, it can compress the spring 604 fixed at the top, so that the compressive stress of the spring 604 acts on the copper foil in conjunction with the pressure plate 603, thereby improving the stability of the copper foil during movement.

[0056] In one embodiment, the welding assembly 7 includes a cylinder 701, the bottom end of which is fixedly installed with the top end of the housing 1, and a hot press block 702 is fixedly installed on the telescopic end of the cylinder 701.

[0057] The hot pressing block 702 installed on the telescopic end is moved by starting the cylinder 701, so that the hot pressing block 702 can perform hot pressing welding on one end of the copper foil, which is more convenient.

[0058] Through the above technical solution, 1. By placing the copper foil at the top of the limiting component 3 and adjusting the distance between the limiting components 3, the limiting components 3 limit both sides of the copper foil. Then, the lifting component 2 is activated, which works with the limiting component 3 to move the copper foil upward so that the top of the copper foil is in contact with the bottom of the clamping component 6. At the same time, the limiting component 3 can cooperate with the moving component 5. Then, the moving component 5 is activated, which moves along the direction of the supporting component 4 and moves the limiting component 3 and the clamping component 6. This allows the limiting component 3 and the clamping component 6 to work together to move the copper foil towards the inside of the welding component 7. Then, the welding component 7 is activated to perform hot-press welding on the copper foil, thereby automatically welding the copper foil, avoiding injury to workers, and improving the practicality of the automatic copper foil welding equipment.

[0059] 2. The support plate 301 drives the top of the copper foil to fit against the bottom of the pressure plate 603. As the support plate 301 continues to move, it causes the copper foil to press against the pressure plate 603, thereby causing the pressure plate 603 to move upward. Since the top of the pressure plate 603 is fixedly connected to the sliding rod 601, and the outer surface of the sliding rod 601 is slidably disposed with the inside of the moving plate 505, when the pressure plate 603 moves, it can move along the inside of the moving plate 505 in conjunction with the sliding rod 601. At the same time, when the pressure plate 603 moves, it can compress the spring 604 fixed at the top, so that the compressive stress of the spring 604, together with the pressure plate 603, acts on the copper foil, thereby improving the stability of the copper foil during movement.

[0060] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0061] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, 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 the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An automatic copper foil splicing welding device, comprising a housing (1), characterized in that: The housing (1) is respectively provided with a lifting assembly (2), a limiting assembly (3), a supporting assembly (4), a moving assembly (5), a clamping assembly (6), and a welding assembly (7); The lifting component (2) is fixedly connected at its top end to the bottom end of the limiting component (3) so that the lifting component (2) drives the limiting component (3) to lift and lower, so as to adjust the height of the limiting component (3); The support component (4) is slidably disposed inside the outer surface of the moving component (5) so that the support component (4) restricts the moving direction of the moving component (5); The clamping component (6) has its outer surface slidingly disposed with the interior of the moving component (5) so that the moving component (5) drives the clamping component (6) to move, and the clamping component (6) is disposed on the upper side of the limiting component (3) so that the limiting component (3) cooperates with the clamping component (6) to clamp the copper foil; The bottom end of the welding assembly (7) is fixedly installed to the top end of the housing (1) so that the welding assembly (7) can weld the copper foil.

2. The apparatus according to claim 1, wherein The lifting assembly (2) includes a first electric push rod (201), the top end of the first electric push rod (201) is fixedly installed inside the housing (1), the telescopic end of the first electric push rod (201) is fixedly installed with a lifting block (202), a U-shaped frame (203) is slidably arranged inside the lifting block (202), and a limit rod (204) is fixedly connected to the bottom end of the lifting block (202), the outer surface of the limit rod (204) is slidably arranged inside the housing (1).

3. The apparatus according to claim 2, wherein The limiting component (3) includes a support plate (301), the bottom end of the support plate (301) is fixedly connected to the top end of the U-shaped frame (203), the bottom end of the support plate (301) is fixedly connected to a support base (302), and a bidirectional screw (303) is rotatably provided inside the support base (302). Both ends of the bidirectional screw (303) are fixedly connected to knobs (304). The support plate (301) has two sets of limiting plates (305) that are slidably arranged inside. The interior of both sets of limiting plates (305) is threadedly connected to the threaded surface of the bidirectional screw (303).

4. The apparatus according to claim 1, wherein The support assembly (4) includes a support frame (401), the bottom end of which is fixedly connected to the top end of the housing (1), a connecting plate (402) is fixedly connected to the top end of the support frame (401), and a support block (403) is fixedly connected to the bottom end of the connecting plate (402).

5. The apparatus according to claim 3 or 4, wherein The movable component (5) includes a mounting plate (501), one side of which is fixedly connected to one side of the support frame (401). A second electric push rod (502) is fixedly mounted on one side of the mounting plate (501). An L-shaped plate (503) is fixedly mounted on the telescopic end of the second electric push rod (502). A slider (504) is fixedly connected to one end of the L-shaped plate (503). The outer surface of the slider (504) slides with the interior of the support block (403). The bottom end of the sliding block (504) is fixedly connected with a moving plate (505), the bottom end of the moving plate (505) is fixedly connected with a positioning cylinder (506), the inside of the positioning cylinder (506) is sleeved with a positioning rod (507), and the bottom end of the positioning rod (507) is fixedly connected with the top end of the supporting plate (301).

6. The apparatus according to claim 5, wherein The clamping assembly (6) comprises a sliding rod (601), the outer surface of the sliding rod (601) is in sliding connection with the inside of the moving plate (505), the top end of the sliding rod (601) is fixedly connected with a limiting block (602), the bottom end of the sliding rod (601) is fixedly connected with a pressing plate (603), the top end of the pressing plate (603) is fixedly connected with a spring (604), and one end of the spring (604) is fixedly connected with the bottom end of the moving plate (505).

7. The apparatus according to claim 1, wherein The welding assembly (7) comprises a gas cylinder (701), the bottom end of the gas cylinder (701) is fixedly installed with the top end of the shell (1), and the telescopic end of the gas cylinder (701) is fixedly installed with a hot pressing block (702).