Tab welding device

Abstract

The tab welding device has a first direction and a second direction which intersect with each other and comprises a first positioning assembly and a first blowing assembly, and the first positioning assembly comprises a supporting table and a supporting plate; the supporting plate is connected with the supporting table, and at least part of the supporting plate protrudes out of one side of the supporting table in the first direction; the first blowing assembly and the first positioning assembly are arranged in a spaced mode in the first direction, and the first blowing assembly is arranged on the side, close to the supporting table in the first direction, of the supporting plate; the first air blowing assembly is provided with a first air outlet, and the first air outlet is formed in the end, facing the supporting plate, of the first air blowing assembly. The first air outlet is configured to be capable of blowing air towards the side, away from the supporting table in the second direction, of the supporting plate. By arranging the supporting plate, the electrode lug can be supported from the root of the electrode lug in the first direction, then the first blowing assembly is used for assisting in blowing air from the lower portion of the electrode lug, bending of the electrode lug caused by the gravity effect is effectively reduced, and therefore the conditions of electrode lug folding and electrode lug welding missing in the welding process are reduced.

Description

Technical Field

[0001] The present application belongs to the field of battery production technology, and specifically relates to a tab welding device. Background Art

[0002] The tabs of secondary batteries are typically made of thin, soft foil, making them prone to deformation. Therefore, before ultrasonic welding, the tabs may warp or sag excessively. This can interfere with the welding base or welding head, causing the tabs to fold or partially miss welds after welding. This can lead to decreased battery performance, shortened battery life, and even the risk of internal tab short circuits. Utility Model Content

[0003] Purpose of the utility model: The embodiment of the present application provides a tab welding device, which aims to solve the existing undesirable phenomenon of tab folding or partial tab leakage after tab welding due to tab deformation, ensure the overall performance and service life of the power battery, and reduce the risk of tab internal short circuit.

[0004] Technical solution: A tab welding device according to an embodiment of the present application has a first direction and a second direction intersecting each other, including:

[0005] A first positioning assembly includes a support platform and a support plate; the support plate is connected to the support platform, and along the first direction, the support plate at least partially protrudes from one side of the support platform;

[0006] The first blowing assembly is spaced apart from the first positioning assembly along the first direction, and the first blowing assembly is arranged on the side of the pallet close to the support table along the first direction; the first blowing assembly has a first air outlet, and the first air outlet is arranged at one end of the first blowing assembly facing the pallet; the first air outlet is configured to blow air toward the side of the pallet away from the support table along the second direction.

[0007] In some embodiments, the support plate comprises:

[0008] a first connecting portion connected to the support platform, wherein the first connecting portion at least partially protrudes from a side of the support platform away from the first blowing assembly;

[0009] The supporting portion is connected to a side of the first connecting portion away from the supporting platform along the first direction, and extends in a direction away from the supporting platform along the second direction.

[0010] In some embodiments, a second positioning assembly is further included, wherein the second positioning assembly includes:

[0011] a pressing plate, spaced apart from the supporting platform along the first direction;

[0012] The folding plate is connected to the pressing plate and is spaced apart from the supporting plate along the first direction; the pressing plate can move along the first direction to drive the folding plate to approach or move away from the supporting portion.

[0013] In some embodiments, the stowage plate comprises:

[0014] a second connecting portion connected to the pressing plate, wherein at least a portion of the second connecting portion protrudes from a side of the pressing plate facing the support platform;

[0015] The gathering portion is connected to a side of the second connection portion away from the pressure plate along the first direction and extends along the second direction away from the pressure plate. The gathering portion and the supporting portion are spaced apart along the first direction.

[0016] In some embodiments, the support plate is provided with a first avoidance groove, which passes through the supporting portion along the first direction; the folding plate is provided with a second avoidance groove, which passes through the folding portion along the first direction; the first avoidance groove and the second avoidance groove are configured as follows: when the tab is arranged between the supporting portion and the folding portion, part of the tab is exposed from the first avoidance groove and the second avoidance groove, respectively.

[0017] In some embodiments, the invention further includes a welding assembly, wherein the welding assembly is spaced apart from the first positioning assembly along the second direction; the welding assembly includes:

[0018] a first bracket, movably disposed along the second direction on a side of the support plate away from the support platform;

[0019] a welding seat connected to the first bracket and spaced apart from the supporting plate along the second direction;

[0020] The welding head is movably connected to the first bracket and is spaced apart from the welding seat along the first direction; the welding head can move along the first direction toward or away from the welding seat.

[0021] In some embodiments, when the welding assembly is close to the first positioning assembly and the second positioning assembly for welding, the welding seat is at least partially located in the first avoidance groove, and the welding head is at least partially located in the second avoidance groove.

[0022] In some embodiments, the welding assembly further includes a dust hood, the welding head is passed through the dust hood, and the welding head extends out of the dust hood on the side facing the welding seat; an opening is provided on the side of the dust hood facing the second positioning assembly, and the opening passes through the side of the dust hood facing the welding seat along the first direction.

[0023] In some embodiments, a second air blowing assembly is further included, wherein the second air blowing assembly is connected to a side of the dust cover facing the second positioning assembly, and the second air blowing assembly has a second air outlet, and the second air outlet faces the welding seat.

[0024] In some embodiments, the second positioning component further comprises:

[0025] a second bracket connected to the pressing plate to support the pressing plate to be spaced apart from the support platform along the first direction;

[0026] The driving unit is connected to the second bracket and is arranged on a side of the pressing plate away from the support platform along the first direction; the output end of the driving unit is connected to the pressing plate to drive the pressing plate to move along the first direction.

[0027] In some embodiments, the first air blowing assembly includes a first air blowing pipe, the first air outlet is provided at one end of the first air blowing pipe facing the supporting plate, and the first air blowing pipe is a plastic hose.

[0028] Beneficial effect: Compared with the prior art, the embodiment of the present application is a tab welding device, which has a first direction and a second direction intersecting each other, and includes a first positioning assembly and a first blowing assembly, wherein the first positioning assembly includes a support platform and a support plate; the support plate is connected to the support platform, and along the first direction, the support plate at least partially protrudes from one side of the support platform; the first blowing assembly is spaced apart from the first positioning assembly along the first direction, and the first blowing assembly is arranged on the side of the support plate close to the support platform along the first direction; the first blowing assembly has a first air outlet, and the first air outlet is arranged at one end of the first blowing assembly facing the support plate; the first air outlet is configured to blow air toward the side of the support plate away from the support platform along the second direction. The present application supports the tab from the root of the tab along the first direction by arranging the support plate in the first positioning assembly, thereby reducing the bending of the tab caused by gravity, and then using the first blowing assembly to assist in blowing air from the bottom of the tab, further reducing the bending of the tab, achieving effective welding of the tab, reducing the situation of tab folding and tab leakage during welding, thereby ensuring the overall performance and service life of the power battery, and reducing the risk of tab internal short circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 11 is a schematic structural diagram of a tab welding device according to an embodiment of the present application;

[0031] Figure 2 This is a structural diagram of a first positioning assembly and a second positioning assembly cooperating with a positioning electrode assembly according to an embodiment of the present application;

[0032] Figure 3 This is a schematic structural diagram of a first positioning assembly according to an embodiment of the present application;

[0033] Figure 4 This is a structural diagram of a support plate according to an embodiment of the present application;

[0034] Figure 5 is a structural diagram of a second positioning component according to an embodiment of the present application;

[0035] Figure 6 This is a structural diagram of a folding plate according to an embodiment of the present application;

[0036] Figure 7 This is a schematic structural diagram of a welding assembly according to an embodiment of the present application;

[0037] Figure 8 This is a schematic structural diagram of a dust cover according to an embodiment of the present application;

[0038] Figure 9 It is a schematic diagram of the overall structure of the electrode assembly of an embodiment of the present application.

[0039] Figure markings: 1. First positioning assembly; 11. Positioning space; 12. Support platform; 13. Support plate; 131. First connecting portion; 132. Supporting portion; 133. First avoidance groove; 2. First blowing assembly; 21. First air outlet; 22. First air blow pipe; 3. Second positioning assembly; 31. Pressing plate; 32. Folding plate; 321. Second connecting portion; 322. Folding portion; 323. Second avoidance groove; 33. Second bracket; 34. Driving portion; 4. Welding assembly; 41. First bracket; 42. Welding seat; 43. Welding head; 44. Dust hood; 441. Opening; 5. Second blowing assembly; 51. Second air outlet; 6. Electrode assembly; 61. Winding core; 62. Tab; X, first direction; Y, second direction. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0041] In the description of the present application, it should be understood that the terms "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "multiple" means two or more, and at least one means one, two or more, unless otherwise clearly and specifically defined. In the description of this application, "vertical" means completely vertical at 90° or almost completely vertical, for example, an angle within the range of 80° to 100° is considered vertical. Similarly, "parallel" means completely parallel or almost completely parallel, for example, an angle within 10° of completely parallel is considered parallel.

[0042] It should also be noted that in the drawings of this application, arrows marked X are used to indicate a first direction X, and arrows marked Y are used to indicate a second direction Y. The first direction X and the second direction Y are introduced to facilitate the description of the structural positional relationship of the tab welding structure, thereby facilitating the understanding of its structure. In the embodiment of this application, the first direction X is the direction in which the first positioning assembly and the second positioning assembly are arranged, specifically, it can be a height direction, and the second direction Y is the direction in which the first positioning assembly and the welding assembly are arranged, specifically, it can be a horizontal direction, and the first direction X and the second direction Y intersect, and further, the first direction X and the second direction Y are perpendicular.

[0043] A power battery cell typically integrates multiple electrode assemblies, each of which has multiple tabs. These tabs need to be gathered and welded together to facilitate their connection to the same electrode terminal. However, before ultrasonic welding of these tabs, one or more of the tabs in the incoming electrode subassemblies may be warped or drooped excessively. This can cause some tabs to interfere with the welding base or welding head during welding, resulting in tab folding or partial tab leakage after welding.

[0044] In view of this, an embodiment of the present application provides a tab welding device, aiming to solve the above-mentioned problem.

[0045] Please refer to Figures 1-4, an embodiment of the present application provides a tab welding device, having an intersecting first direction X and a second direction Y, including a first positioning component 1 and a first blowing component 2, the first positioning component 1 including a support platform 12 and a pallet 13; the pallet 13 is connected to the support platform 12, and along the first direction X, the pallet 13 at least partially protrudes on one side of the support platform 12; the first blowing component 2 is spaced apart from the first positioning component 1 along the first direction X, and the first blowing component 2 is arranged on a side of the pallet 13 close to the support platform 12 along the first direction X; the first blowing component 2 has a first air outlet 21, and the first air outlet 21 is arranged at one end of the first blowing component 2 facing the pallet 13; the first air outlet 21 is configured to be able to blow air toward a side of the pallet 13 away from the support platform 12 along the second direction Y.

[0046] The present application provides a support plate 13 on the first positioning component 1 to support the pole tab 62 from the root of the pole tab 62 along the first direction X, thereby reducing the bending of the pole tab 62 caused by gravity, and then uses the first blowing component to assist in blowing from below the pole tab 62 to further reduce the bending of the pole tab 62, thereby achieving effective welding of the pole tab 62, reducing the folding of the pole tab 62 and the leakage of the pole tab 62 during welding, thereby ensuring the overall performance and service life of the power battery, and reducing the risk of internal short circuit of the pole tab 62.

[0047] In the embodiment of the present application, the first positioning assembly 1 is used to provide support for the electrode assembly 6 as a whole. Figure 9 As shown, the electrode assembly 6 includes a winding core 61 and a pole tab 62, wherein the pole tab 62 is connected to one side of the winding core 61, wherein the winding core 61 is arranged on the support platform 12, and part of the pole tab 62 is arranged on the support plate 13. At this time, the support platform 12 supports the winding core 61 from the lower side of the winding core 61, and the support plate 13 supports the pole tab 62 from the lower side of the pole tab 62, and ensures that part of the pole tab 62 is suspended in the air to facilitate welding of the pole tab 62. The first blowing assembly 2 is arranged below the first positioning assembly 1, and the first air outlet 21 of the first blowing assembly 2 faces the pole lug 62, and the first air outlet 21 is configured to blow air toward the side of the support plate 13 along the second direction Y away from the support platform 12, and the pole lug 62 usually extends to the side of the support plate 13 along the second direction Y away from the support platform 12, so the first blowing port can blow air toward the pole lug 62 and blow air upward from the bottom of the pole lug 62, thereby utilizing the thrust of the airflow acting on the bottom side of the pole lug 62 to overcome the gravity of the suspended pole lug 62 itself, making the pole lug 62 tend to be flat, reducing the bending and warping of the pole lug 62, and facilitating the pole lug 62 to smoothly enter between the welding seat 42 and the welding head 43, reducing the interference between the pole lug 62 and the welding seat 42, thereby improving the success rate of welding the pole lug 62.

[0048] It should be noted that the first positioning assembly 1 has a positioning space 11, which is used to place the core 61 and position the core 61. The support platform 12 and the pallet 13 are connected and used to enclose the positioning space 11, wherein a portion of the pallet 13 protrudes on one side of the support platform 12 along the first direction X, and is used to limit the core 61 along the second direction Y. Of course, the first positioning assembly 1 also includes a plurality of limiting members, and the plurality of limiting members are arranged on the outer peripheral side of the support platform 12 and connected to the support platform 12, and the plurality of limiting members all protrude on one side of the support platform 12 along the second direction Y. At this time, the plurality of limiting members, the pallet 13 and the support platform 12 enclose the positioning space 11, and realize the positioning and limiting of the core 61, as well as the support along the first direction X, while the pallet 13 is used to realize the support of the tab 62 along the first direction X.

[0049] Please refer to Figure 3 and Figure 4 In some embodiments, the support plate 13 includes a first connecting portion 131 and a supporting portion 132. The first connecting portion 131 is connected to the support platform 12, and the first connecting portion 131 at least partially protrudes from the side of the support platform 12 away from the first blowing assembly 2; the supporting portion 132 is connected to the side of the first connecting portion 131 away from the support platform 12 along the first direction X, and extends along the second direction Y in a direction away from the support platform 12.

[0050] In the embodiment of the present application, the first connecting portion 131 is used to connect to the support platform 12 to achieve the fixation of the entire support plate 13, and the supporting portion 132 is used to extend away from the support platform 12 and provide a platform to support the tab 62. This structural arrangement can use the supporting portion 132 to support multiple overlapping tabs 62 from the base of the tab 62, which is conducive to the retraction of the tab 62.

[0051] Please refer to Figure 1 、 Figure 2 and Figure 5 In some embodiments, a second positioning assembly 3 is further included, and the second positioning assembly 3 includes a pressing plate 31 and a folding plate 32. The pressing plate 31 is spaced apart from the support platform 12 along the first direction X, and the folding plate 32 is connected to the pressing plate 31 and spaced apart from the support plate 13 along the first direction X; the pressing plate 31 can move along the first direction X to drive the folding plate 32 to approach or move away from the supporting portion 132.

[0052] The embodiment of the present application provides a second positioning assembly 3 to further position and limit the electrode assembly 6 along the first direction X, making it easier to weld the tabs 62. The pressing plate 31 is used to cooperate with the support platform 12 along the first direction X to clamp the winding core 61, thereby securing the winding core 61 and preventing the tabs 62 from moving due to movement of the winding core 61. The retraction plate 32 is spaced apart from the support plate 13 along the first direction X and is used to cooperate with the support plate 13 to retract, press, and position the tabs 62, thereby reducing the possibility of some tabs 62 warping when the first blowing assembly 2 blows air.

[0053] It should be noted that the folding plate 32 of the embodiment of the present application needs to partially protrude on the side of the pressure plate 31 facing the support plate, because the core 61 has a certain thickness, the tab 62 is a very thin metal sheet, and the thickness of multiple tabs 62 stacked together is less than the thickness of the core 61. Therefore, the support plate 13 and the folding plate 32 move toward each other along the first direction X and cooperate with each other to limit the core 61 in the second direction Y and clamp the tab 62 along the first direction X. Among them, when the support plate 13 protrudes on the side of the support platform 12 facing the pressure plate 31, if the protruding height of the support plate 13 is sufficient to cooperate with the folding plate 32 to clamp the pole ear 62 when the pressure plate 31 presses down to fix the winding core 61, the folding plate 32 does not need to protrude on the side of the pressure plate 31 facing the support platform 12; if the folding plate 32 and the support plate 13 cannot clamp the pole ear 62 when the pressure plate 31 presses down to fix the winding core 61, then at this time at least part of the folding plate 32 needs to protrude on the side of the pressure plate 31 facing the support platform 12, so as to facilitate the folding plate 32 to cooperate with the support plate 13 and clamp the pole ear 62 when the pressure plate 31 presses down to fix the winding core 61.

[0054] Please refer to Figure 5 and Figure 6 In some embodiments, the folding plate 32 includes a second connecting portion 321 and a folding portion 322. The second connecting portion 321 is connected to the pressure plate 31, and at least a portion of the second connecting portion 321 protrudes on the side of the pressure plate 31 facing the support platform 12; the folding portion 322 is connected to the side of the second connecting portion 321 away from the pressure plate 31 along the first direction X, and extends along the second direction Y in a direction away from the pressure plate 31. The folding portion 322 and the supporting portion 132 are spaced apart along the first direction X.

[0055] In the embodiment of the present application, a folding portion 322 is provided to cooperate with the supporting portion 132 to fold and fix the pole ear 62 outside the pressure plate 31 and the support platform 12 to prevent the pole ear 62 from bending from the root. At the same time, the folding portion 322 presses the pole ear 62 from above, which can reduce the tilting of the pole ear 62, thereby facilitating the welding of the pole ear 62, extremely improving the welding success rate, and reducing the welding leak rate.

[0056] In some embodiments, the support plate 13 is provided with a first avoidance groove 133, and the first avoidance groove 133 passes through the supporting portion 132 along the first direction X; the folding plate 32 is provided with a second avoidance groove 323, and the second avoidance groove 323 passes through the folding portion 322 along the first direction X; the first avoidance groove 133 and the second avoidance groove 323 are configured as follows: when the pole ear 62 is arranged between the supporting portion 132 and the folding portion 322, part of the pole ear 62 is exposed from the first avoidance groove 133 and the second avoidance groove 323 respectively.

[0057] In the embodiment of the present application, by providing a first avoidance groove 133 on the support plate 13 and a second avoidance groove on the folding plate 32, the edge of the pole lug 62 can be fixed when the pole lug 62 is captured between the supporting portion 132 and the folding portion 322, so that the middle part of the pole lug 62 is exposed from the first avoidance groove 133 and the second avoidance groove 323, so that the welding seat 42 can directly enter the first avoidance groove 133 and the welding head 43 can directly enter the second avoidance groove 323, and weld the part of the pole lug 62 exposed from the first avoidance groove 133 and the second avoidance groove 323. On the one hand, it avoids interference with the welding head 43 and the welding seat 42, and on the other hand, it can realize direct welding of the fixed area of the pole lug 62, further reducing the possibility of bending and warping of the pole lug 62 at the welding position, thereby further improving the welding effect.

[0058] Please refer to Figure 1 and Figure 7 In some embodiments, the tab welding device further includes a welding assembly 4, which is spaced apart from the first positioning assembly 1 along the second direction Y; the welding assembly 4 includes a first bracket 41, a welding seat 42 and a welding head 43, and the first bracket 41 is movably arranged on the side of the support plate 13 away from the support platform 12 along the second direction Y; the welding seat 42 is connected to the first bracket 41 and spaced apart from the support plate 13 along the second direction Y; the welding head 43 is movably connected to the first bracket 41 and spaced apart from the welding seat 42 along the first direction X; the welding head 43 can move along the first direction X toward or away from the welding seat 42.

[0059] In an embodiment of the present application, the first bracket 41 can drive the welding assembly 4 to move as a whole along the second direction Y, so that the welding assembly 4 moves toward the direction close to the first positioning assembly 1 and the second positioning assembly 3 when it needs to weld the pole ear 62. After the welding assembly 4 completes welding of the pole ear 62, it moves toward the direction away from the first positioning assembly 1 and the second positioning assembly 3. The welding head 43 can move along the first direction X toward or away from the welding seat 42 to realize the welding of the pole ear 62 and release the pole ear 62.

[0060] When welding the tab 62, the welding seat 42 is positioned below the tab 62 along the first direction X, and the welding head 43 is positioned above the tab 62 along the first direction X. The welding head 43 moves toward the tab 62 along the first direction X and cooperates with the welding seat to weld the tab 62. After welding the tab 62 is completed, the welding head 43 moves away from the tab 62 along the first direction X and moves away from the tab 62 along the second direction Y along with the first bracket 41, thereby resetting the welding assembly 4.

[0061] It should be noted that the welding of the tabs 62 mentioned in the embodiment of the present application can be the pre-welding of the tabs 62 during the production process of the power battery. Specifically, the tabs 62 can be gathered and welded together to facilitate the subsequent direct connection of the tabs 62 with the adapter or electrode terminal.

[0062] In some embodiments, when the welding assembly 4 approaches the first positioning assembly 1 and the second positioning assembly 3 for welding, the welding seat 42 is at least partially located in the first avoidance groove 133 , and the welding head 43 is at least partially located in the second avoidance groove 323 .

[0063] In the embodiment of the present application, when welding the tab 62 , the welding seat 42 is at least partially located in the first avoidance groove 133 , and the welding head 43 is at least partially located in the second avoidance groove 323 , thereby achieving effective connection of the tab 62 .

[0064] It should be noted that in some preferred embodiments of the present application, the width of the first avoidance groove 133 is greater than the width of the welding seat 42, and the width of the second avoidance groove 323 is greater than the width of the welding head 43, so that the welding seat 42 can smoothly enter the first avoidance groove 133 and the welding head 43 can smoothly enter the second avoidance groove 323.

[0065] Specifically, due to the presence of the first avoidance groove 133 and the second avoidance groove 323, the two side edges of the pole ear 62 can be clamped and positioned by the supporting portion 132 and the retracting portion 322, and this part of the pole ear 62 will not warp or bend. Therefore, the corresponding part exposed from the first avoidance groove 133 and the second avoidance groove 323 will not warp or bend. Therefore, the welding seat 42 and the welding head 43 directly weld the part exposed from the first avoidance groove 133 and the second avoidance groove 323, which can effectively improve the welding success rate and avoid part of the pole ear 62 from flipping over, warping or leaking after welding.

[0066] like Figure 8 As shown, in some embodiments, the welding assembly 4 also includes a dust cover 44, the welding head 43 is passed through the dust cover 44, and the welding head 43 is passed out of the dust cover 44 on the side facing the welding seat 42; the dust cover 44 is provided with an opening 441 on the side facing the second positioning assembly 3, and the opening 441 passes through the dust cover 44 along the first direction X on the side facing the welding seat 42.

[0067] In an embodiment of the present application, the dust hood 44 is used to absorb the welding dust generated around the welding seat 42 and the welding head 43 in real time during the welding process. By setting the opening 441, the air flow speed in the dust hood 44 can be effectively reduced, thereby preventing the dust removal wind from sucking up the pole ear 62 when absorbing dust, and thus preventing the pole ear 62 from folding during welding.

[0068] Please refer to Figure 7 and Figure 8 In some embodiments, a second air blowing assembly 5 is further included. The second air blowing assembly 5 is connected to the side of the dust cover 44 facing the second positioning assembly 3. The second air blowing assembly 5 has a second air outlet 51, and the second air outlet 51 faces the welding seat 42.

[0069] It should be noted that, since there is dust removal wind in the dust removal hood 44 that continuously draws air outward, on the basis of setting the opening 441, a second blowing assembly 5 is further set to blow air toward the pole ear 62 when the pole ear 62 is welded, which can further offset the force of the dust removal wind on the pole ear 62 and further reduce the possibility of the pole ear 62 being sucked up.

[0070] like Figure 2 As shown, in some embodiments, the second positioning assembly 3 also includes a second bracket 33 and a driving unit 34. The second bracket 33 is connected to the pressure plate 31 to support the pressure plate 31 to be spaced apart from the support platform 12 along the first direction X; the driving unit 34 is connected to the second bracket 33 and is arranged on the side of the pressure plate 31 away from the support platform 12 along the first direction X; the output end of the driving unit 34 is connected to the pressure plate 31 to drive the pressure plate 31 to move along the first direction X.

[0071] In the embodiment of the present application, the first positioning assembly 1 is preferably fixed, and the pressure plate 31 of the second positioning assembly 3 is supported above the first positioning assembly 1 by a bracket, and the driving unit 34 is used to drive the bracket and the pressure plate 31 to realize the movement of the pressure plate 31 along the first direction X toward or away from the support platform 12. When it is necessary to weld the tab 62, the electrode assembly 6 is first placed on the first positioning assembly 1, so that the winding core 61 is located on the support platform 12 and in the positioning space 11, the tab 62 is located on the forming support plate 13, and the tab 62 is supported by the supporting portion 132. Then, the driving unit 34 drives the bracket and the pressure plate 31 to move along the first direction X toward the winding core 61 until the winding core 61 is pressed. At this time, the retracting plate 32 presses the tab 62 and smoothes the root of the tab 62, which is convenient for subsequent welding of the welding assembly 4.

[0072] like Figure 1 As shown, in some embodiments, the first air blowing assembly 2 includes a first air blowing pipe 22 , the first air outlet 21 is provided at one end of the first air blowing pipe 22 facing the support plate 13 , and the first air blowing pipe 22 is a plastic hose.

[0073] In the embodiment of the present application, by configuring the first air blowing tube 22 as a flexible hose, the first air blowing tube 22 can be bent, thereby adjusting the angle of the gas blown out of the first air outlet, thereby achieving different flattening effects on the tab 62. When the tab 62 bends differently under the action of gravity, the direction of the first air outlet is adjusted accordingly, thereby achieving a better flattening effect on the tab 62. In the above embodiments, the description of each embodiment has its own focus. For parts not detailed in one embodiment, please refer to the relevant description of other embodiments.

[0074] The above is a detailed introduction to a tab welding device provided in an embodiment of the present application, and specific examples are used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solution and core idea of the present application; ordinary technicians in this field should understand that: they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not cause the essence of the corresponding technical solution to deviate from the scope of the technical solution of the embodiments of the present application.

Claims

1. A tab welding device, characterized in that: Having an intersecting first direction and a second direction, comprising: A first positioning assembly includes a support platform and a support plate; the support plate is connected to the support platform, and along the first direction, the support plate at least partially protrudes from one side of the support platform; The first blowing assembly is spaced apart from the first positioning assembly along the first direction, and the first blowing assembly is arranged on the side of the pallet close to the support table along the first direction; the first blowing assembly has a first air outlet, and the first air outlet is arranged at one end of the first blowing assembly facing the pallet; the first air outlet is configured to blow air toward the side of the pallet away from the support table along the second direction.

2. The tab welding device according to claim 1, characterized in that: The support plate comprises: a first connecting portion connected to the support platform, wherein the first connecting portion at least partially protrudes from a side of the support platform away from the first blowing assembly; The supporting portion is connected to a side of the first connecting portion away from the supporting platform along the first direction, and extends in a direction away from the supporting platform along the second direction.

3. The tab welding device according to claim 2, characterized in that: Also included is a second positioning assembly, the second positioning assembly comprising: a pressing plate, spaced apart from the supporting platform along the first direction; The folding plate is connected to the pressing plate and is spaced apart from the supporting plate along the first direction; the pressing plate can move along the first direction to drive the folding plate to approach or move away from the supporting portion.

4. The tab welding device according to claim 3, characterized in that: The retracting plate comprises: a second connecting portion connected to the pressing plate, wherein at least a portion of the second connecting portion protrudes from a side of the pressing plate facing the support platform; The gathering portion is connected to a side of the second connection portion away from the pressure plate along the first direction and extends along the second direction away from the pressure plate. The gathering portion and the supporting portion are spaced apart along the first direction.

5. The tab welding device according to claim 4, characterized in that: The support plate is provided with a first avoidance groove, which penetrates the supporting portion along the first direction; the folding plate is provided with a second avoidance groove, which penetrates the folding portion along the first direction; the first avoidance groove and the second avoidance groove are configured as follows: when the tab is arranged between the supporting portion and the folding portion, part of the tab is exposed from the first avoidance groove and the second avoidance groove respectively.

6. The tab welding device according to claim 5, characterized in that: The invention also includes a welding assembly, wherein the welding assembly is spaced apart from the first positioning assembly along the second direction; the welding assembly includes: a first bracket, movably disposed along the second direction on a side of the support plate away from the support platform; a welding seat connected to the first bracket and spaced apart from the supporting plate along the second direction; The welding head is movably connected to the first bracket and is spaced apart from the welding seat along the first direction; the welding head can move along the first direction toward or away from the welding seat.

7. The tab welding device according to claim 6, characterized in that: When the welding assembly is close to the first positioning assembly and the second positioning assembly for welding, the welding seat is at least partially located in the first avoidance groove, and the welding head is at least partially located in the second avoidance groove.

8. The tab welding device according to claim 6, characterized in that: The welding assembly also includes a dust cover, the welding head is inserted into the dust cover, and the welding head extends out of the dust cover on the side facing the welding seat; the dust cover is provided with an opening on the side facing the second positioning assembly, and the opening passes through the dust cover on the side facing the welding seat along the first direction.

9. The tab welding device according to claim 8, characterized in that: It also includes a second air blowing assembly, which is connected to the side of the dust cover facing the second positioning assembly. The second air blowing assembly has a second air outlet, and the second air outlet faces the welding seat.

10. The tab welding device according to claim 3, characterized in that: The second positioning component also includes: a second bracket connected to the pressing plate to support the pressing plate to be spaced apart from the support platform along the first direction; The driving unit is connected to the second bracket and is arranged on a side of the pressing plate away from the support platform along the first direction; the output end of the driving unit is connected to the pressing plate to drive the pressing plate to move along the first direction.

11. The tab welding device according to any one of claims 1 to 10, characterized in that: The first air blowing assembly includes a first air blowing pipe. The first air outlet is arranged at one end of the first air blowing pipe facing the supporting plate. The first air blowing pipe is a plastic hose.

Images