Tab laser welding tool

Abstract

The utility model relates to the technical field of welding tools, and provides a pole lug laser welding tool which comprises a supporting plate, a fixing clamp and a pressing mechanism, and the supporting plate is obliquely arranged relative to the horizontal plane and used for supporting a roll core; the fixing clamp is used for fixing the top cover; the pressing mechanism is arranged on the supporting plate and is used for extruding the tabs and the switching pieces, so that the tabs abut against the switching pieces, and laser welding of the tabs and the switching pieces is carried out; the fixing clamp is arranged on the pressing mechanism, and the switching piece is parallel to the horizontal plane. According to the utility model, by arranging the pressing mechanism, the tab can be extruded and abutted against the adapter plate, so that the welding quality of the tab and the adapter plate is ensured, by arranging the supporting plate, the roll core and the adapter plate can be obliquely arranged, and the length of the tab is shortened on the premise of ensuring a safe interval between the roll core and the adapter plate, so that the welding quality of the tab and the adapter plate is improved. Therefore, the overall performance of the battery cell is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding tooling, in particular to a tab laser welding tooling. Background Art

[0002] The tabs and adapters are important components of the battery cell, which play the role of connecting the battery cover and the winding core. The welding of the tabs and adapters is an important link in the assembly and processing of the battery cell, and the quality of the welding is directly related to the overall performance of the battery cell.

[0003] The utility model with patent publication number CN216607622U discloses a battery welding device, including: a laser for welding an adapter and a battery cell pole ear; an X-axis servo moving system for adjusting the X-axis position of the laser; a Y-axis servo moving system for adjusting the Y-axis position of the laser; a rotating clamping assembly for clamping the pole piece and the adapter; an adapter support assembly for supporting the adapter; and a support plate for supporting the battery cell and the shell. Compared with the prior art, the utility model can reduce the difficulty of welding, improve welding efficiency, improve welding consistency, improve the welding yield rate of the battery cell and the shell, reduce the deformation of the shell, and improve the consistency of the shell and cover plate welding.

[0004] In the above technical solution, in order to improve the welding effect of the pole piece and the adapter plate, a rotating clamping assembly is provided for pressing the two together. In order to prevent the welding of the pole piece and the adapter plate from damaging the winding core, a safe distance is provided between the winding core and the adapter plate. However, the pole piece is usually bent into an L shape and welded to the adapter plate, which will cause redundant pole ears and is not conducive to improving the overall performance of the battery cell. Utility Model Content

[0005] In view of this, the utility model proposes a tab laser welding tool, which can reduce the length of the tab and improve the overall performance of the battery cell while ensuring the welding quality and welding safety between the tab and the adapter.

[0006] The technical solution of the utility model is implemented as follows: The utility model provides a tab laser welding tool, including a support plate, a fixing clamp and a clamping mechanism, wherein:

[0007] The support plate is arranged obliquely with respect to the horizontal plane and is used to support the winding core;

[0008] The fixing clip is used to fix the top cover;

[0009] The pressing mechanism is arranged on the support plate, and is used to press the pole ear and the adapter plate, so that the pole ear is pressed against the adapter plate, so as to perform laser welding of the pole ear and the adapter plate;

[0010] The fixing clip is arranged on the pressing mechanism, and the adapter plate is parallel to the horizontal plane.

[0011] On the basis of the above technical solution, preferably, the clamping mechanism includes a base and a pressing block, wherein:

[0012] The base is fixedly arranged on the top side of the support plate and abuts against the bottom side of the adapter plate;

[0013] The pressing block is arranged on the top side of the base and abuts against the top side of the pole ear, so that the pole ear abuts against the side of the adapter plate close to the top cover.

[0014] More preferably, the fixing clamp comprises two cylinders and a clamping plate, wherein:

[0015] The cylinder is fixedly arranged on the base, and two cylinders are arranged oppositely on two sides of the base;

[0016] A clamping plate is fixedly arranged on the telescopic end of each cylinder.

[0017] More preferably, a limiting groove is provided on the top side of the clamping plate.

[0018] On the basis of the above technical solution, preferably, two support plates are provided, and the two support plates are symmetrically arranged about the center line of the fixing clamp.

[0019] More preferably, the support plate includes a plate body and a plurality of limit blocks, wherein:

[0020] The plate body is arranged obliquely with respect to the horizontal plane, and one side thereof abuts against the winding core;

[0021] The limiting block is fixedly arranged on the plate body, and is respectively in contact with two side surfaces of the winding core that are perpendicular to the length direction of the top cover and the bottom side of the winding core.

[0022] More preferably, the support plate also includes a connecting rod, one end of which is fixed against a side of the plate body away from the limit block, and the other end is fixed against a bottom side of the clamping mechanism, and center lines at both ends of the connecting rod are inclined.

[0023] More preferably, a through hole is provided in the pressing block for passing a welding laser beam.

[0024] On the basis of the above technical solution, preferably, it further includes a bottom plate, and the support plate is fixedly arranged on the bottom plate.

[0025] More preferably, a control switch is further included, wherein the control switch is fixedly arranged on the base plate and located on one side of the support plate, and is used to control the fixing clamp.

[0026] The utility model of a tab laser welding tool has the following beneficial effects compared with the prior art:

[0027] (1) By providing a clamping mechanism, the tab can be pressed against the adapter, thereby ensuring the welding quality between the tab and the adapter. By providing a support plate, the winding core and the adapter can be arranged at an angle. On the premise of ensuring a safe interval between the winding core and the adapter, the length of the tab is shortened, thereby improving the overall performance of the battery cell.

[0028] (2) By setting the limit block, the winding core can be prevented from sliding on the support plate, thereby improving the welding quality of the adapter and the tab;

[0029] (3) By providing the cylinder and the clamp, not only can the top cover be fixed conveniently, but the top cover can also be clamped in the middle position of the welding fixture, thereby improving the welding consistency of the welding fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 A stereoscopic diagram of a tab laser welding tool of the utility model;

[0032] Figure 2 It is a cross-sectional view of a tab laser welding tool of the utility model;

[0033] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0034] Figure 4 A three-dimensional diagram of a pressure block in a tab laser welding tooling of the utility model;

[0035] Figure 5 The utility model is a three-dimensional diagram of a fixing clamp in a tab laser welding tool.

[0036] Among them: 1. support plate; 11. plate body; 12. limit block; 13. connecting rod; 2. fixing clamp; 21. cylinder; 22. clamping plate; 201. limit groove; 3. clamping mechanism; 31. base; 32. pressing block; 301. through hole; 4. bottom plate; 5. control switch; 6. winding core; 7. pole ear; 8. top cover; 9. adapter. DETAILED DESCRIPTION

[0037] The following will be combined with the specific implementation of the utility model to clearly and completely describe the technical solution in the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] The battery cell includes components such as a shell, a winding core 6, a pole ear 7, a top cover 8 and a transfer plate 9. The pole ear 7 is preset on the winding core 6. When assembling the battery cell, the transfer plate 9 can be welded to the top cover 8 first, and then the transfer plate 9 and the pole ear 7 can be welded, and finally the top cover 8 and the shell can be sealed and fixed.

[0039] like Figure 1-5 As shown, a tab laser welding tool of the utility model comprises a support plate 1, a fixing clamp 2, a clamping mechanism 3 and a bottom plate 4, which are used to support various components of the battery cell to achieve welding conduction between the tab 7 and the adapter 9.

[0040] The support plate 1 is used to support and fix the winding core 6 .

[0041] The fixing clip 2 is used to fix the top cover 8 .

[0042] The clamping mechanism 3 is arranged on the support plate 1, and is used for squeezing the pole ear 7 and the adapter plate 9 so that the pole ear 7 is pressed against the adapter plate 9 for laser welding of the pole ear 7 and the adapter plate 9; by using the clamping mechanism 3 to press and fit the pole ear 7 and the adapter plate 9, the two can be tightly connected, avoiding the occurrence of explosion points, cold welding and the like due to poor cooperation between the pole ear 7 and the adapter plate 9 when welding them, thereby ensuring the welding quality of the pole ear 7 and the adapter plate 9.

[0043] like Figure 2 and Figure 3 As shown, the support plate 1 is inclined with respect to the horizontal plane, the fixing clamp 2 is arranged on the clamping mechanism 3, and the adapter plate 9 is parallel to the horizontal plane, so that the winding core 6 and the adapter plate 9 are inclined. On the premise of ensuring a safe distance between the winding core 6 and the adapter plate 9, the length of the pole ear 7 can be shortened, thereby improving the overall performance of the battery cell.

[0044] like Figure 3As shown, the clamping mechanism 3 includes a base 31 and a pressing block 32, wherein the base 31 is fixedly arranged on the top side of the support plate 1 and abuts against the bottom side of the adapter plate 9; the pressing block 32 is arranged on the top side of the base 31 and abuts against the top side of the pole ear 7, so that the pole ear 7 abuts against the side of the adapter plate 9 close to the top cover 8, thereby utilizing the abutting effect of the base 31 and the pressing block 32 to make the pole ear 7 and the adapter plate 9 fit better; at the same time, since the adapter plate 9 is below the top cover 8, in order to facilitate the pressing block 32 to abut against the adapter plate 9, a corresponding through hole can be opened on the top cover 8, so that the pressing block 32 can pass through this through hole to abut against the adapter plate 9. Of course, when the top cover 8 and the shell are assembled, this through hole needs to be blocked.

[0045] When the pressing block 32 presses the pole tab 7, the top side of the pole tab 7 is blocked. In order to improve the convenience of welding the pole tab 7 and the adapter 9, a through hole 301 is preferably opened in the pressing block 32 for passing the welding laser beam.

[0046] like Figure 1 and Figure 5 As shown, the fixing clamp 2 includes two cylinders 21 and a clamping plate 22, wherein the cylinder 21 is fixedly arranged on the base 31, and the two cylinders 21 are relatively arranged on both sides of the base 31; a clamping plate 22 is fixedly arranged on the telescopic end of each cylinder 21, and when the telescopic ends of the two cylinders 21 are extended at the same time, the top cover 8 can be clamped and fixed, and when the telescopic ends of the two cylinders 21 are contracted at the same time, the top cover 8 can be removed from the fixing clamp 2, thereby achieving clamping and fixing of the top cover 8; at the same time, the two symmetrically arranged clamping plates 22 can also always fix the top cover 8 in the middle position of the welding tooling, thereby improving the welding consistency of the welding tooling.

[0047] like Figure 5 As shown, a limiting groove 201 is provided on the top side of the clamping plate 22 to prevent the top cover 8 from sliding sideways between the clamping plates 22 , thereby improving the fixing strength of the top cover 8 and the fixing clip 2 .

[0048] In order to improve the welding efficiency of the pole tab 7 and the assembly efficiency of the battery cell, two support plates 1 are provided, and the two support plates 1 are symmetrically arranged about the center line of the fixing clamp 2, thereby realizing double-station welding of the winding core 6.

[0049] like Figure 1 and Figure 2As shown, the support plate 1 includes a plate body 11, a plurality of limit blocks 12 and a connecting rod 13, wherein the plate body 11 is inclined with respect to the horizontal plane, and one side thereof is in contact with the winding core 6, specifically, the side away from the ground is in contact with the winding core 6; the limit blocks 12 are fixedly arranged on the plate body 11, and are respectively in contact with two side surfaces of the winding core 6 that are perpendicular to the length direction of the top cover 8 and the bottom side of the winding core 6, thereby preventing the winding core 6 from sliding on the support plate 1, so as to ensure the welding quality of the pole ear 7 and the adapter plate 9.

[0050] like Figure 2 As shown, one end of the connecting rod 13 is fixed against the side of the plate body 11 away from the limit block 12, and the other end is fixed against the bottom side of the clamping mechanism 3, and the center lines of the two ends of the connecting rod 13 are inclined to each other, thereby reinforcing the plate body 11 and the clamping mechanism 3 and improving the fixing firmness between the support plate 1 and the clamping mechanism 3.

[0051] The bottom plate 4 is used to carry other components and is connected to the electrode tab 7 welding equipment. The support plate 1 is fixedly arranged on the bottom plate 4 .

[0052] The control switch 5 is used to control the fixing clamp 2. The control switch 5 is fixedly set on the base plate 4 and is located on one side of the support plate 1. Specifically, the control switch 5 is used to start and stop the control air circuit of the regulating cylinder 21, and to adjust the direction of the control air circuit. The control switch 5 is spaced a certain distance from the pole ear 7 and the adapter plate 9 being welded, which improves the control convenience of the control switch 5.

[0053] The method of using a tab laser welding tool of the utility model is as follows:

[0054] First, the adapter plate 9 and the top cover 8 are laser welded, and the two are placed on the base 31 so that the adapter plate 9 and the base 31 are in contact with each other. Then, the control switch 5 is manipulated to allow the fixing clamp 2 to clamp and fix the top cover 8. Next, the winding core 6 is placed on the support plate 1, and the pole ear 7 on the winding core 6 is inserted between the top cover 8 and the adapter plate 9. Finally, the pressing block 32 is passed through the top cover 8 to squeeze the pole ear 7 so that the pole ear 7 and the adapter plate 9 are in contact with each other, and the pole ear 7 and the adapter plate 9 are laser welded using a laser welding head.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tab laser welding tool, characterized in that: It comprises a support plate (1), a fixing clamp (2) and a pressing mechanism (3), wherein: The support plate (1) is arranged to be inclined with respect to a horizontal plane, and is used to support the winding core (6); The fixing clip (2) is used to fix the top cover (8); The pressing mechanism (3) is arranged on the support plate (1) and is used to press the pole ear (7) and the adapter plate (9) so that the pole ear (7) abuts against the adapter plate (9) to perform laser welding of the pole ear (7) and the adapter plate (9); The fixing clamp (2) is arranged on the pressing mechanism (3), and the adapter plate (9) is parallel to a horizontal plane.

2. A tab laser welding tool as claimed in claim 1, characterized in that: The pressing mechanism (3) comprises a base (31) and a pressing block (32), wherein: The base (31) is fixedly arranged on the top side of the support plate (1) and abuts against the bottom side of the adapter plate (9); The pressing block (32) is arranged on the top side of the base (31) and abuts against the top side of the pole lug (7), so that the pole lug (7) abuts against a side of the adapter plate (9) close to the top cover (8).

3. A tab laser welding tool as claimed in claim 2, characterized in that: The fixing clamp (2) comprises two cylinders (21) and a clamping plate (22), wherein: The cylinder (21) is fixedly arranged on the base (31), and the two cylinders (21) are arranged oppositely on two sides of the base (31); A clamping plate (22) is fixedly arranged on the telescopic end of each cylinder (21).

4. A tab laser welding tool as claimed in claim 3, characterized in that: A limiting groove (201) is provided on the top side of the clamping plate (22).

5. The tab laser welding tool as claimed in claim 1, characterized in that: Two support plates (1) are provided, and the two support plates (1) are symmetrically arranged about the center line of the fixing clamp (2).

6. A tab laser welding tool as claimed in claim 5, characterized in that: The support plate (1) comprises a plate body (11) and a plurality of limit blocks (12), wherein: The plate body (11) is arranged to be inclined with respect to a horizontal plane, and one side thereof is in contact with the winding core (6); The limit block (12) is fixedly arranged on the plate body (11) and respectively abuts against two side surfaces of the winding core (6) which are perpendicular to the length direction of the top cover (8) and the bottom side of the winding core (6).

7. A tab laser welding tool as claimed in claim 6, characterized in that: The support plate (1) further comprises a connecting rod (13), one end of the connecting rod (13) being fixed against a side of the plate body (11) away from the limit block (12), and the other end being fixed against a bottom side of the clamping mechanism (3), and the center lines of both ends of the connecting rod (13) being inclined relative to each other.

8. The tab laser welding tool as claimed in claim 2, characterized in that: The pressing block (32) is provided with a through hole (301) for passing a welding laser beam.

9. The tab laser welding tool as claimed in claim 1, characterized in that: It also comprises a bottom plate (4), on which the support plate (1) is fixedly arranged.

10. The tab laser welding tool as claimed in claim 9, characterized in that: It also comprises a control switch (5), which is fixedly arranged on the base plate (4) and located on one side of the support plate (1) and is used to control the fixing clamp (2).

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