Battery copper nozzle welding tool

Abstract

The utility model provides a battery copper nozzle welding tool, which relates to the technical field of battery manufacturing equipment, and comprises a copper nozzle main body, the copper nozzle main body comprises a copper nozzle upper part and a copper nozzle lower part, the copper nozzle upper part is provided with an upper part channel penetrating through the copper nozzle upper part in the height direction, and the copper nozzle lower part is provided with a lower part channel penetrating through the copper nozzle lower part; the lower part of the copper nozzle is provided with a lower channel penetrating through the lower part of the copper nozzle in the height direction, and the lower channel is communicated with the upper channel; protective gas channels are symmetrically arranged on two opposite sides of the upper part of the copper nozzle and are used for introducing protective gas into the lower channel; dust discharge ports communicated with the upper channel are symmetrically formed in the other two sides of the upper part of the copper nozzle and are used for discharging waste gas in the copper nozzle main body. According to the battery copper nozzle welding tool disclosed by the utility model, the shielding gas channel and the dust discharging opening are symmetrically arranged, so that the shielding gas covering uniformity and the waste gas discharging efficiency are improved, and the overall welding effect and quality of the battery copper nozzle welding tool are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production and manufacturing equipment, in particular to a battery copper nozzle welding tooling. Background Art

[0002] A battery module is composed of multiple battery cells. During the production process, the pole columns of each battery cell are connected in series or in parallel through aluminum bars. The connection between the aluminum bar and the battery cell pole column is completed by laser penetration welding. During the laser penetration welding process, a copper nozzle is required to press the aluminum bar, and a protective gas is introduced into the copper nozzle to prevent virtual soldering caused by oxidation due to the participation of air during the welding process, resulting in poor welding. At the same time, a dust extraction device needs to be set up to extract the waste gas generated in the copper nozzle to prevent the smoke and dust from blocking the light.

[0003] For example, the patent with the publication number of CN220296117U discloses a battery welding copper nozzle tooling, which includes a copper nozzle body. The copper nozzle body includes an upper part of the copper nozzle and a lower part of the copper nozzle. A protective gas pipeline for transporting the protective gas is also arranged on the copper nozzle body. The upper part of the copper nozzle is provided with an upper channel that penetrates the upper part of the copper nozzle in the height direction. The upper channel is used for the passage of the laser and the discharge of waste gas and smoke and dust. Although this patent can realize the introduction of the protective gas and the discharge of the waste gas, the applicant found some problems during the actual use process.

[0004] On the one hand, the protective gas pipeline of this patent is arranged on one side of the upper part of the copper nozzle. Although a plurality of protective gas pipelines are arranged on one side of the upper part of the copper nozzle, its structural method belongs to blowing the protective gas unilaterally, resulting in insufficient blowing of the protective gas and incomplete coverage of the aluminum bar, which will lead to poor welding quality. On the other hand, the waste gas of this patent is discharged through the upper channel of the copper nozzle body. However, during welding, the dust extraction port is located directly above the center of the copper nozzle, far from the aluminum bar, resulting in slow waste gas discharge efficiency. Moreover, the laser needs to enter through the upper channel, and during the process of the waste gas and smoke and dust being discharged from the upper channel, it will cause blockage and reflection of the laser, thus affecting the laser penetration efficiency. Summary of the Utility Model

[0005] In view of this, the utility model provides a battery copper nozzle welding tooling to solve the problems of uneven coverage of the protective gas and low waste gas discharge efficiency existing in the existing battery copper nozzle welding tooling.

[0006] The technical solution of the utility model is realized as follows:

[0007] The utility model provides a battery copper nozzle welding tool, comprising a copper nozzle body, wherein the copper nozzle body comprises a copper nozzle upper part and a copper nozzle lower part, wherein the copper nozzle upper part has an upper channel penetrating the copper nozzle upper part in a height direction, and the copper nozzle lower part has a lower channel penetrating the copper nozzle lower part in a height direction, wherein the lower channel is connected to the upper channel;

[0008] The upper part of the copper nozzle is symmetrically provided with protective gas channels on two opposite sides, and the protective gas channels are used to introduce protective gas into the lower channel;

[0009] Dust exhaust ports connected to the upper passage are symmetrically arranged on the other two sides of the upper part of the copper nozzle, and the dust exhaust ports are used to discharge the waste gas in the copper nozzle body.

[0010] On the basis of the above technical solution, preferably, the upper part of the copper spout is a square structure, the upper channel is a circular cavity structure, the upper channel is coaxially arranged with the upper part of the copper spout, the lower part of the copper spout is a cone structure, the lower channel is a conical cavity structure, and the large mouth end of the lower channel is connected to the upper channel.

[0011] Further, preferably, the protective gas channel includes a first channel and a second channel, the first channel and the second channel are both arranged on the upper part of the copper mouth, one end of the second channel is connected to the first channel, the other end of the second channel is inclined downward and connected to the upper channel, and the opening of the second channel is toward the central axis of the lower channel, and the end of the first channel away from the second channel is used to pass the protective gas.

[0012] Furthermore, preferably, one end of the second channel away from the first channel is connected to the upper end of the lower channel.

[0013] On the basis of the above technical solution, preferably, it also includes a mounting plate and an exhaust pipe, the copper nozzle body is detachably arranged on the bottom surface of the mounting plate, a welding hole corresponding to the upper channel is opened on the mounting plate, and air outlets are also arranged on the mounting plate on both sides of the welding hole, one end of the exhaust pipe is fixedly connected to the dust exhaust port, and the other end is connected to the air outlet.

[0014] Further, preferably, a slide groove is provided on the bottom surface of the mounting plate along its length direction, and slide platforms connected to the slide groove are respectively provided on both sides of the upper part of the copper nozzle facing the protective gas channel, and a positioning pin is fixedly provided on the side of the welding hole facing the length direction of the slide groove, and the positioning pin is used to limit the side of the upper part of the copper nozzle facing the dust exhaust port, and a quick-release structure is provided between the copper nozzle body and the mounting plate.

[0015] On the basis of the above technical solution, preferably, the quick-release structure includes a fixing member and an electromagnet. The electromagnet is fixedly arranged in the mounting plate, and the lower end of the electromagnet is flush with the top surface of the chute. The fixing member includes a connecting portion and a lifting portion fixedly arranged at the lower end of the connecting portion. The upper part of the copper nozzle has a mounting hole penetrating through the upper part of the copper nozzle in the height direction. The connecting portion passes through the mounting hole and is connected to the electromagnet, and the lifting portion is connected to the bottom end of the upper part of the copper nozzle.

[0016] On the basis of the above technical solution, preferably, air ducts are symmetrically arranged on the top surfaces on both sides in the length direction of the mounting plate with respect to the welding holes. A cover plate is fixedly arranged at the top end of the air duct. The air outlet is arranged on one side of the air duct close to the welding hole and is communicated with the air duct. An air extraction port communicated with the air duct is arranged at one end of the cover plate away from the welding hole.

[0017] Further, preferably, one end of the exhaust pipe away from the dust exhaust port covers the air outlet, and the caliber of the exhaust pipe is larger than that of the air outlet.

[0018] The utility model has the following beneficial effects compared with the prior art:

[0019] (1) By symmetrically arranging the protective gas channels on both sides of the upper part of the copper nozzle, the protective gas can be evenly introduced into the lower channel. This symmetric design of the protective gas channels can effectively avoid the problem of uneven coverage of the protective gas in a single-sided protective gas channel, improve the protection effect during welding, prevent air from participating in oxidation, and thus improve the welding quality; the symmetric design of the dust exhaust port and its position close to the waste gas source can quickly and efficiently discharge the waste gas and dust, avoid the shielding and reflection effects of the waste gas and dust on the laser penetration process, and improve the efficiency and quality of laser welding.

[0020] (2) By connecting the end of the second channel far from the first channel to the upper end of the lower channel, the protective gas directly enters the lower channel after passing through the second channel, avoiding the protective gas being drawn away in the upper channel and improving the effectiveness of the coverage of the protective gas in the lower channel.

[0021] (3) Through the arrangement of the positioning pins and the quick-release structure, it is convenient to replace the copper nozzle bodies of different models, and the installation and disassembly efficiency of the copper nozzle bodies is improved. Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 The first - perspective three - dimensional structure diagram of the copper nozzle body disclosed by the present utility model;

[0024] Figure 2 The second - perspective three - dimensional structure diagram of the copper nozzle body disclosed by the present utility model;

[0025] Figure 3 The planar structure diagram of the battery copper nozzle welding tooling disclosed by the present utility model;

[0026] Figure 4 is Figure 3 The planar cross - sectional view at A - A in

[0027] Figure 5 is Figure 3 The planar cross - sectional view at B - B in

[0028] Figure 6 The three - dimensional structure diagram of the battery copper nozzle welding tooling disclosed by the present utility model;

[0029] Figure 7 The assembly structure diagram of the copper nozzle body and the mounting plate disclosed by the present utility model;

[0030] Reference numerals:

[0031] 1. Copper nozzle body; 11. Upper part of the copper nozzle; 12. Lower part of the copper nozzle; 111. Upper channel; 121. Lower channel; 13. Protection gas channel; 14. Dust exhaust port; 131. First channel; 132. Second channel; 2. Mounting plate; 3. Exhaust pipe; 21. Welding hole; 22. Air outlet; 20. Slide groove; 112. Slide table; 23. Positioning pin; 4. Quick - release structure; 41. Fixing part; 42. Electromagnet; 113. Mounting hole; 411. Connecting part; 412. Lifting part; 24. Air duct; 5. Cover plate; 51. Air suction port. Detailed implementation manners

[0032] Next, in combination with the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0033] As Figure 1 shown, in combination with Figure 2, the present utility model discloses a battery copper nozzle welding tooling, including a copper nozzle main body 1. The copper nozzle main body 1 includes a copper nozzle upper part 11 and a copper nozzle lower part 12. The copper nozzle upper part 11 has an upper channel 111 that penetrates the copper nozzle upper part 11 in the height direction. The copper nozzle lower part 12 has a lower channel 121 that penetrates the copper nozzle lower part 12 in the height direction. The lower channel 121 is communicated with the upper channel 111. In this embodiment, the copper nozzle upper part 11 and the copper nozzle lower part 12 are of an integrally formed structure. In this embodiment, the upper channel 111 is used for the laser to pass through, and the copper nozzle lower part 12 is used to cover the battery pole column and press the aluminum bar on the battery pole column.

[0034] In order to blow in a protective gas during the welding process, in this embodiment, protective gas channels 13 are symmetrically arranged on opposite sides of the copper nozzle upper part 11. The protective gas channels 13 are used to introduce the protective gas into the lower channel 121. Since the protective gas channels 13 are symmetrically arranged on both sides of the copper nozzle upper part 11, the protective gas can be evenly introduced into the lower channel 121. This design of the symmetrically arranged protective gas channels 13 can effectively avoid the problem of uneven coverage of the protective gas in the case of a single-sided protective gas channel 13, improve the protection effect during the welding process, prevent air from participating in oxidation, and thus improve the welding quality.

[0035] In order to timely discharge the fumes and waste gases generated during the welding process, in this embodiment, dust exhaust ports 14 communicated with the upper channel 111 are symmetrically arranged on the other two sides of the copper nozzle upper part 11. The dust exhaust ports 14 are used to discharge the waste gases in the copper nozzle main body 1. The symmetric design of the dust exhaust ports 14 and their positions close to the waste gas source can quickly and efficiently discharge the waste gases and fumes, avoid the shielding and reflection effects of the waste gases and fumes on the laser penetration process, and improve the efficiency and quality of laser welding.

[0036] The battery copper nozzle welding tooling disclosed by the present utility model improves the uniformity of protective gas coverage and the waste gas discharge efficiency through the symmetric arrangement of the protective gas channels 13 and the dust exhaust ports 14, thereby improving the overall welding effect and quality of the battery copper nozzle welding tooling.

[0037] As some preferred embodiments, the copper nozzle upper part 11 is of a cubic structure, which is convenient for assembling and fixing with the welding equipment. More specifically, it is convenient for installing and fixing with the mounting plate 2 described below. The upper channel 111 is of a circular cavity structure and is coaxially arranged with the copper nozzle upper part 11. The circular cavity is beneficial to the uniform distribution and transmission of the laser. The coaxial arrangement ensures the accurate alignment of the laser and improves the welding accuracy.

[0038] The lower part of the copper nozzle 12 is a conical structure. The lower channel 121 is a conical cavity structure. The large end of the lower channel 121 is docked with the upper channel 111. This structural setting is beneficial to centrally guide the shielding gas through the lower channel 121 of the circular cavity structure to the welding area of the pole column and the aluminum bar, improving the welding quality. In addition, the lower channel 121 is set as a conical cavity structure, which can accelerate the discharge of waste gas, reduce the residence time of waste gas in the welding area, thereby further preventing the shielding and reflection of laser by the soot and improving the efficiency and effect of laser welding.

[0039] As some preferred embodiments, referring to the attached Figures 3 - 5 As shown, the shielding gas channel 13 includes a first channel 131 and a second channel 132. Both the first channel 131 and the second channel 132 are arranged in the upper part 11 of the copper nozzle. One end of the second channel 132 is connected to the first channel 131. The other end of the second channel 132 inclines downward and is connected to the lower channel 121. And the opening of the second channel 132 faces the central axis of the lower channel 121. The end of the first channel 131 away from the second channel 132 is used for introducing the shielding gas.

[0040] Adopting the above technical solution, by introducing the shielding gas into the first channel 131, the shielding gas flows from the first channel 131 to the second channel 132 and is blown out from the lower end of the second channel 132. Since the second channel 132 is arranged to incline downward, the blowing direction of the shielding gas can be directly opposite to the central axis of the lower channel 121. By symmetrically arranging two groups of shielding gas channels 13, the blowing flow rate of the shielding gas to the center of the lower channel 121 can be increased, so that the shielding gas enters the lower channel 121 and covers the welding area of the pole column and the aluminum bar, improving the welding quality.

[0041] Preferably, the end of the second channel 132 away from the first channel 131 is connected to the upper end of the lower channel 121. This structural setting enables the shielding gas to directly enter the lower channel 121 after passing through the second channel 132, avoiding the shielding gas being drawn away in the upper channel 111 and improving the effectiveness of the coverage of the shielding gas in the lower channel 121.

[0042] To facilitate the connection between the copper nozzle body 1 and the welding equipment, the copper nozzle welding tooling of this embodiment further includes a mounting plate 2 and an exhaust pipe 3. Referring to the attached Figures 3 - 7As shown in the figure, the mounting plate 2 is used for fixedly connecting with the welding equipment. The copper nozzle body 1 is detachably arranged on the bottom surface of the mounting plate 2. A welding hole 21 corresponding to the upper channel 111 is formed on the mounting plate 2. Through the welding hole 21, the laser of the welding equipment can pass through the welding hole 21, the upper channel 111 and the lower channel 121 to realize the welding of the pole column and the aluminum bar. Air outlets 22 are also arranged on the mounting plate 2 on both sides of the welding hole 21. One end of the exhaust pipe 3 is fixedly connected with the dust exhaust port 14, and the other end is connected with the air outlet 22. With this setting, by installing an exhaust device on the welding equipment and connecting the exhaust device with the air outlet 22, the soot and waste gas generated inside the copper nozzle body 1 can be sucked and discharged through the exhaust pipe 3.

[0043] To realize the assembly of the copper nozzle body 1 and the mounting plate 2, refer to the attached Figure 7 As shown in the figure, in this embodiment, a chute 20 is formed on the bottom surface of the mounting plate 2 along its length direction. Sliding platforms 112 connected with the chute 20 are respectively arranged on both sides of the upper part 11 of the copper nozzle facing the protective gas channel 13, which facilitates the horizontal sliding of the copper nozzle body 1 on the chute 20 of the mounting plate 2 through the sliding platforms 112. At the same time, the setting of the chute 20 and the sliding platforms 112 limits that the copper nozzle body 1 can only move horizontally relative to the mounting plate 2. A positioning pin 23 is fixedly arranged on one side of the welding hole 21 facing the length direction of the chute 20. The positioning pin 23 is used to limit one side of the upper part 11 of the copper nozzle facing the dust exhaust port 14. Through the setting of the positioning pin 23, when the copper nozzle body 1 slides to a certain position in the chute 20, the positioning pin 23 blocks and limits the copper nozzle body 1 to ensure its precise positioning in the chute 20, so that the upper channel 111 and the welding hole 21 of the mounting plate 2 are coaxially corresponding. At the same time, it ensures that the outlet of the exhaust pipe 3 and the position of the air outlet 22 on the mounting plate 2 are corresponding.

[0044] A quick-release structure 4 is arranged between the copper nozzle body 1 and the mounting plate 2, making the disassembly and assembly between the copper nozzle body 1 and the mounting plate 2 more convenient and fast, reducing the time for replacement and maintenance, and improving the work efficiency.

[0045] This embodiment shows a preferred structural form of the quick-release structure 4. Specifically, the quick-release structure 4 includes a fixing part 41 and an electromagnet 42, and the fixing part is an iron part. The electromagnet 42 is fixedly arranged in the mounting plate 2, and the lower end of the electromagnet 42 is flush with the top surface of the chute 20. The fixing part 41 includes a connecting part 411 and a lifting part 412 fixedly arranged at the lower end of the connecting part 411. The upper part 11 of the copper nozzle has a mounting hole 113 that penetrates the upper part 11 of the copper nozzle in the height direction. The connecting part 411 passes through the mounting hole 113 and is connected with the electromagnet 42, and the lifting part 412 is connected with the bottom end of the upper part 11 of the copper nozzle.

[0046] With the above technical solution, when the copper nozzle body 1 slides into place on the mounting plate 2 and is positioned by the positioning pin 23, the connecting portion 411 of the fixing member 41 is inserted upward through the mounting hole 113 at the bottom of the copper nozzle body 1 until the lifting portion 412 abuts against the bottom end of the upper part 11 of the copper nozzle. The lifting portion 412 supports the upper part 11 of the copper nozzle. At this time, the upper end of the connecting portion 411 is connected to the electromagnet 42. By energizing the electromagnet 42, the electromagnet 42 can magnetically adsorb the connecting portion 411. At this time, the copper nozzle body 1 cannot slide horizontally on the mounting plate 2, thus ensuring that the copper nozzle body 1 is fixed on the mounting plate 2.

[0047] When adapting to battery poles with different diameters and needing to replace the copper nozzle body, only the electromagnet 42 needs to be de-energized. When the electromagnet 42 loses its adsorption on the fixing member 41, the copper nozzle body 1 can slide horizontally on the chute 20 to separate the copper nozzle body 1 from the mounting plate 2. When assembling the new copper nozzle body 1 and the mounting plate 2, only the copper nozzle body 1 needs to be slid along the chute 20 and position-limited by the positioning pin 23, and then the copper nozzle body 1 and the mounting plate 2 can be fixedly connected through the quick-release structure 4.

[0048] Through the setting of the positioning pin 23 and the quick-release structure 4, it is convenient to replace copper nozzle bodies of different models, improving the installation and disassembly efficiency of the copper nozzle body 1.

[0049] To facilitate the connection of the exhaust equipment to the air outlet 22 on the welding equipment, in this embodiment, air ducts 24 are symmetrically arranged on the top surfaces on both sides in the length direction of the mounting plate 2 relative to the welding hole 21. A cover plate 5 is fixedly arranged at the top end of the air duct 24. The air outlet 22 is arranged on one side of the air duct 24 close to the welding hole 21 and is communicated with the air duct 24. A suction port 51 communicated with the air duct 24 is arranged at one end of the cover plate 5 far from the welding hole 21. With this setting, when the exhaust equipment is installed on the welding equipment, it can be far away from the welding hole 21, providing sufficient position space for the laser emitter. By sucking the air duct 24 through the exhaust equipment, the air duct 24 is communicated with the exhaust pipe 3 through the air outlet 22, thereby realizing the suction and discharge of the dust and waste gas in the copper nozzle body 1.

[0050] Since the exhaust pipe 3 is pre-installed on the dust discharge port 14 of the copper nozzle body 1, when the copper nozzle body 1 is replaced, it moves along the chute 20 together with the exhaust pipe 3. To enable the opening of the exhaust pipe 3 to be effectively connected to the air outlet 22 on the mounting plate 2, the solution set in this embodiment is: the diameter of the exhaust pipe 3 is larger than the diameter of the air outlet 22. With this setting, when the copper nozzle body 1 slides into place on the mounting plate 2, the end of the exhaust pipe 3 far from the dust discharge port 14 covers the air outlet 22, thus effectively connecting the exhaust pipe 3 and the air outlet 22.

[0051] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A battery copper nozzle welding tool, comprising a copper nozzle body (1), wherein the copper nozzle body (1) comprises a copper nozzle upper part (11) and a copper nozzle lower part (12), wherein the copper nozzle upper part (11) has an upper channel (111) penetrating the copper nozzle upper part (11) in a height direction, and the copper nozzle lower part (12) has a lower channel (121) penetrating the copper nozzle lower part (12) in a height direction, wherein the lower channel (121) is connected to the upper channel (111), characterized in that ； Shielding gas passages (13) are symmetrically arranged on opposite sides of the upper portion (11) of the copper nozzle, and the shielding gas passages (13) are used to introduce shielding gas into the lower passage (121); Dust exhaust ports (14) connected to the upper channel (111) are symmetrically arranged on the other two sides of the upper portion (11) of the copper nozzle, and the dust exhaust ports (14) are used to discharge waste gas in the copper nozzle body (1).

2. The battery copper nozzle welding tool as claimed in claim 1, characterized in that: The upper part (11) of the copper spout is a square structure, the upper channel (111) is a circular cavity structure, the upper channel (111) is coaxially arranged with the upper part (11) of the copper spout, the lower part (12) of the copper spout is a cone structure, the lower channel (121) is a cone cavity structure, and the large mouth end of the lower channel (121) is butt-jointed with the upper channel (111).

3. The battery copper nozzle welding tool as claimed in claim 2, characterized in that: The protective gas channel (13) comprises a first channel (131) and a second channel (132), wherein the first channel (131) and the second channel (132) are both arranged on the upper part of the copper nozzle (11), one end of the second channel (132) is connected to the first channel (131), the other end of the second channel (132) is inclined downward and connected to the lower channel (121), and the opening of the second channel (132) is oriented toward the central axis of the lower channel (121), and the end of the first channel (131) away from the second channel (132) is used for introducing protective gas.

4. The battery copper nozzle welding tool as claimed in claim 3, characterized in that: One end of the second channel (132) away from the first channel (131) is connected to the upper end of the lower channel (121).

5. The battery copper nozzle welding tool as claimed in claim 2, characterized in that: It also comprises a mounting plate (2) and an exhaust pipe (3); the copper nozzle body (1) is detachably arranged on the bottom surface of the mounting plate (2); a welding hole (21) corresponding to the upper channel (111) is provided on the mounting plate (2); air outlets (22) are also provided on the mounting plate (2) on both sides of the welding hole (21); one end of the exhaust pipe (3) is fixedly connected to the dust exhaust port (14), and the other end is connected to the air outlet (22).

6. The battery copper nozzle welding tool as claimed in claim 5, characterized in that: The bottom surface of the mounting plate (2) is provided with a slide groove (20) along its length direction; slide platforms (112) connected to the slide groove (20) are respectively provided on both sides of the upper portion (11) of the copper nozzle facing the protective gas channel (13); a positioning pin (23) is fixedly provided on one side of the welding hole (21) facing the length direction of the slide groove (20); the positioning pin (23) is used to limit the side of the upper portion (11) of the copper nozzle facing the dust exhaust port (14); and a quick-release structure (4) is provided between the copper nozzle body (1) and the mounting plate (2).

7. The battery copper nozzle welding tool as claimed in claim 6, characterized in that: The quick-release structure (4) comprises a fixing member (41) and an electromagnet (42); the electromagnet (42) is fixedly arranged in the mounting plate (2), and the lower end of the electromagnet (42) is flush with the top surface of the slide groove (20); the fixing member (41) comprises a connecting portion (411) and a lifting portion (412) fixedly arranged at the lower end of the connecting portion (411); the upper portion (11) of the copper nozzle has a mounting hole (113) penetrating the upper portion (11) of the copper nozzle in the height direction; the connecting portion (411) passes through the mounting hole (113) and is connected to the electromagnet (42); and the lifting portion (412) is connected to the bottom end of the upper portion (11) of the copper nozzle.

8. The battery copper nozzle welding tool as claimed in claim 6, characterized in that: Air ducts (24) are symmetrically arranged on the top surfaces of both sides of the mounting plate (2) in the length direction relative to the welding hole (21); a cover plate (5) is fixedly arranged on the top of the air duct (24); the air outlet (22) is arranged on a side of the air duct (24) close to the welding hole (21) and is connected to the air duct (24); and an air exhaust port (51) connected to the air duct (24) is arranged on one end of the cover plate (5) away from the welding hole (21).

9. The battery copper nozzle welding tool as claimed in claim 8, characterized in that: One end of the exhaust pipe (3) away from the dust exhaust port (14) covers the air outlet (22), and the diameter of the exhaust pipe (3) is larger than the diameter of the air outlet (22).

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