Lithium ion battery conducting strip welding tool

Abstract

The utility model discloses a lithium ion battery conducting strip welding tool which comprises a base, an outer frame is arranged at one end of the base, a console is arranged on the outer frame, a top plate is arranged on the top wall of the outer frame, a welding device is arranged in the top plate, a limiting device is arranged in the upper end face of the base, and a demolding device is arranged in the base. The utility model belongs to the technical field of lithium battery welding, and particularly relates to a lithium ion battery conducting strip welding tool which solves the problems that in the prior art, when a welded lithium battery roll core is separated from a limiting groove, manual operation wastes time and labor, and efficiency is not high.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium battery welding, in particular to a welding tool for a lithium ion battery conductive sheet. Background Art

[0002] During the production process of soft-pack lithium batteries, ultrasonic welding is usually used to weld the external conductive sheet to the battery cell tab. During the welding process, the lithium-ion battery needs to be placed in place, and then the conductive sheet is placed in the corresponding position and welded by a welding machine.

[0003] When the conductive sheet is docked to the tab of the lithium-ion battery, it is common to weld the lithium battery tab above the conductive sheet. After welding is completed, since the lithium battery core is located in the limiting groove as a whole, it needs to be separated manually when it is separated. There are some shortcomings: manual demolding is time-consuming and labor-intensive, and it is not convenient to separate the lithium battery core from the limiting groove, and the efficiency is not high. Therefore, improvements are needed. Utility Model Content

[0004] The technical problem to be solved by the utility model is that in the prior art, when the welded lithium battery coil core is separated from the limiting groove, the manual operation is time-consuming and labor-intensive, and the efficiency is low.

[0005] In order to achieve the above functions, the technical solution adopted by the present invention is as follows: a lithium-ion battery conductive sheet welding tool, including a base, an outer frame is provided at one end of the base, a control console is provided on the outer frame, a top plate is provided on the top wall of the outer frame, a welding device is provided in the top plate, a limiting device is provided in the upper end surface of the base, and a demolding device is provided in the base; the demolding device includes a cylinder 1, the cylinder 1 is located inside the base, a connecting rod is provided at the output end of the cylinder 1, and a push plate is provided at the upper end of the connecting rod. The push plate is synchronously pushed by the connecting rod, and the push plate can quickly detach the welded lithium battery assembly, saving time and effort, and being highly efficient.

[0006] Furthermore, the limiting device includes a core limiting groove, the core limiting groove is symmetrically provided in the base, the push plate is located in the core limiting groove, the core limiting groove corresponds to the lithium battery core, the core limiting grooves are connected with a tab limiting groove, the tab limiting groove corresponds to the lithium battery tab, the side of the tab limiting groove is provided with a conductive sheet limiting groove, the conductive sheet limiting groove corresponds to the lithium battery conductive sheet, the lithium battery core, the tab and the conductive sheet to be welded can be quickly positioned and fitted by the limiting device, and the welding is completed by the welding device.

[0007] Furthermore, the welding device includes a slider, which slides in the top plate. Cylinder 2 is provided in the top plate. The output end of cylinder 2 is connected to the slider. An electric push rod is fixed downward on the slider. The output of the electric push rod is provided with a welding head. The welding head is located directly above the limiting groove of the conductive sheet. By sliding the slider, the sliding of the welding head can be achieved, so that the positive and negative poles of the lithium battery tabs can be welded in an orderly manner.

[0008] Preferably, the welding teeth of the welding head are composed of pointed welding teeth and round welding teeth arranged in a high and low distribution in height to avoid welding cracks.

[0009] Preferably, the depth of the tab limiting groove is shallower than the depth of the conductive sheet limiting groove.

[0010] Preferably, the vertical cross-section of the push plate is T-shaped, and the upper end surface of the push plate can be flush with the ground of the winding core limiting groove.

[0011] Preferably, the console is connected to the electric push rod, cylinder 1 and cylinder 2 control signals.

[0012] The utility model adopts the above structure to achieve the following beneficial effects:

[0013] 1. The utility model can realize the rapid separation of the welded conductive sheet and lithium battery core from the core limiting groove through the demoulding device, which saves time and effort and greatly improves the efficiency of lithium battery conductive sheet welding.

[0014] 2. The utility model limits the lithium battery core by setting a core limiting groove. The tab limiting groove can quickly position the tab of the lithium battery. The conductive sheet limiting groove limits the conductive sheet that needs to be welded, so that the core, tab and conductive sheet can be placed in order. The welding head adopts a pointed welding tooth and a round welding tooth arrangement to avoid welding cracks. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an overall three-dimensional diagram of a lithium-ion battery conductive sheet welding tooling of the utility model;

[0016] Figure 2 This is a structural diagram of a demoulding device for a lithium-ion battery conductive sheet welding tooling according to the present invention;

[0017] Figure 3 for Figure 1 a partial bottom view of the welding device;

[0018] Figure 4 for Figure 1 A three-dimensional view of the welding joint;

[0019] Figure 5This is a top-down layout of the lithium battery core, tabs, and conductive sheets.

[0020] Among them, 1. Base, 2. External frame, 3. Control console, 4. Top plate, 5. Welding device, 6. Limiting device, 7. Demolding device, 8. Cylinder 1, 9. Connecting rod, 10. Push plate, 11. Core limiting groove, 12. Lithium battery core, 13. Tab limiting groove, 14. Lithium battery tab, 15. Conductive sheet limiting groove, 16. Lithium battery conductive sheet, 17. Slider, 18. Cylinder 2, 19. Electric push rod, 20. Welding head. DETAILED DESCRIPTION

[0021] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0023] like Figure 1-5 The utility model is a lithium-ion battery conductive sheet welding tool, comprising a base 1, an outer frame 2 is provided at one end of the base 1, a control console 3 is provided on the outer frame 2, the control console 3 is connected to the electric push rod 19, cylinder 1 8 and cylinder 2 18 control signals, a top plate 4 is provided on the top wall of the outer frame 2, a welding device 5 is provided in the top plate 4, a limiting device 6 is provided in the upper end surface of the base 1, and a demoulding device 7 is provided in the base 1.

[0024] like Figure 1-2 The demoulding device 7 includes a cylinder 8, which is located inside the base 1. A connecting rod 9 is provided at the output end of the cylinder 8, and a push plate 10 is provided at the upper end of the connecting rod 9. The vertical cross-section of the push plate 10 is T-shaped. The upper end surface of the push plate 10 can be flush with the ground of the winding core limiting groove 11. The push plate 10 is pushed synchronously by the connecting rod 9. The push plate 10 can quickly separate the welded lithium battery assembly, saving time and effort, and being highly efficient.

[0025] like Figure 1 and 5The limiting device 6 includes a core limiting groove 11, which is symmetrically arranged in the base 1, and the push plate 10 is located in the core limiting groove 11. The core limiting groove 11 corresponds to the lithium battery core 12, and the core limiting grooves 11 are connected to the tab limiting grooves 13. The depth of the tab limiting groove 13 is shallower than the depth of the conductive sheet limiting groove 15. The tab limiting groove 13 corresponds to the lithium battery tab 14, and the side of the tab limiting groove 13 is provided with a conductive sheet limiting groove 15. The conductive sheet limiting groove 15 corresponds to the lithium battery conductive sheet 16. The limiting device 6 can quickly position and fit the lithium battery core, tab and conductive sheet to be welded, and the welding is completed by the welding device 5.

[0026] like Figure 1 and 3 The welding device 5 includes a slider 17, which slides in the top plate 4. A cylinder 2 18 is provided in the top plate 4. The output end of the cylinder 2 18 is connected to the slider 17. An electric push rod 19 is fixed downwardly on the slider 17. The output of the electric push rod 19 is provided with a welding head 20. The welding teeth of the welding head 20 are composed of pointed welding teeth and round welding teeth and are distributed in high and low heights to avoid welding cracks. The welding head 20 is located directly above the conductive sheet limiting groove 15. By sliding the slider 17, the sliding of the welding head 20 can be achieved, so that the positive and negative electrodes of the lithium battery tabs 14 can be welded in an orderly manner.

[0027] During specific use, the lithium battery conductive sheet 16 to be welded is placed in the conductive sheet limiting groove 15, and then the lithium battery core 12 is placed in the corresponding core limiting groove 11. At this time, the lithium battery pole ear 14 is just located in the pole ear limiting groove 13 and above the lithium battery conductive sheet 16. At this time, the lithium battery pole ear 14 is in contact with the lithium battery conductive sheet 16. The welding head 20 is pushed down by the electric push rod 19 to weld the lithium battery conductive sheet 16 and the lithium battery pole ear 14. The slider 17 is pushed by the cylinder 2 18 to achieve translation of the welding head 20, and the positive and negative welding of the lithium battery pole ear 14 can be completed.

[0028] After welding is completed, by controlling the start of cylinder 18, cylinder 18 pushes the connecting rod 9, and the connecting rod 9 pushes the push plates 10 on both sides. The push plates 10 can push the lithium battery core 12 out of the core limiting groove 11 to complete the separation quickly and efficiently, ensuring the efficiency of welding.

[0029] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A lithium-ion battery conductive sheet welding tool, comprising a base, an outer frame provided at one end of the base, and a control console provided on the outer frame, characterized in that: The top wall of the outer frame is provided with a top plate, a welding device is provided in the top plate, a limiting device is provided in the upper end surface of the base, and a demoulding device is provided in the base.

2. The lithium-ion battery conductive sheet welding tool according to claim 1, characterized in that: The demoulding device includes a cylinder 1, which is located inside the base. The output end of the cylinder 1 is provided with a connecting rod, and the upper end of the connecting rod is provided with a push plate.

3. The lithium-ion battery conductive sheet welding tool according to claim 2, characterized in that: The limiting device includes a core limiting groove, which is symmetrically arranged in the base, and the push plate is located in the core limiting groove. The lithium battery core is placed in the core limiting groove. The core limiting groove is connected to the tab limiting groove, and the tab limiting groove is placed correspondingly to the lithium battery tab. The side of the tab limiting groove is provided with a conductive sheet limiting groove, and the conductive sheet limiting groove is placed correspondingly to the lithium battery conductive sheet.

4. The lithium-ion battery conductive sheet welding tool according to claim 3, characterized in that: The welding device includes a slider, which slides in the top plate. Cylinder 2 is provided in the top plate. The output end of cylinder 2 is connected to the slider. An electric push rod is fixed downward on the slider. A welding head is provided at the output of the electric push rod. The welding head is located directly above the limiting groove of the conductive plate.

5. The lithium-ion battery conductive sheet welding tool according to claim 4, characterized in that: The welding teeth of the welding head are composed of pointed welding teeth and round welding teeth arranged in a high and low distribution.

6. The lithium-ion battery conductive sheet welding tool according to claim 5, characterized in that: The depth of the tab limiting groove is shallower than the depth of the conductive sheet limiting groove.

7. The lithium-ion battery conductive sheet welding tool according to claim 6, characterized in that: The vertical cross section of the push plate is T-shaped, and the upper end surface of the push plate can be flush with the ground of the winding core limiting groove.

8. The lithium-ion battery conductive sheet welding tool according to claim 7, characterized in that: The console is connected with the electric push rod, the first cylinder and the second cylinder by control signals.

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