Soft package battery tab welding tool

Abstract

The utility model discloses a soft package battery tab welding tool which comprises a fixed base, the lower side wall of the fixed base is connected with a lifting plate through a plurality of bolts distributed in a rectangular array mode, and the front side and the rear side of the upper side wall of the fixed base are connected with limiting bottom plates through bolts. Supporting limiting plates are connected to the left side and the right side of the upper side wall of the fixed base through bolts, locking bolts are connected to the front sides and the rear sides of the upper side walls of the two supporting limiting plates in a threaded mode, and a positioning plate is connected to the upper side walls of the two supporting limiting plates through four locking bolts. Clamping assemblies are connected to the top positions of the front sides and the rear sides of the two supporting limiting plates. Through the combined use of the positioning plate, the clamping assembly and the pressurizing assembly, the soft package battery welding device can accurately position the soft package battery, has the characteristics of improving the pseudo soldering quality and the welding efficiency, can be used individually or in groups according to the condition of automatic equipment, and further improves the welding efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of battery welding, in particular to a welding tool for a soft-pack battery tab. Background Art

[0002] Soft-pack batteries are batteries with soft packaging. The biggest difference between them and conventional cylindrical batteries and square batteries is that they use an aluminum-plastic composite film shell, while the latter use a metal shell. In terms of the four core battery materials, namely the positive electrode, negative electrode, diaphragm and electrolyte, there is not much difference between soft-pack batteries and conventional cylindrical batteries and square batteries. In terms of safety, soft-pack batteries can prevent heat accumulation and explosion by swelling. With the rise of emerging applications such as electric vehicles, power storage, and drones, soft-pack battery packs are becoming more and more widely used.

[0003] The welding of electrode sheets, the core link of the grouped modules, requires high-precision and high-efficiency welding positioning technology. Although traditional welding methods, such as spot welding and pressure welding, can realize the welding of electrode sheets of grouped modules, they are basically manual welding of single-pole sheets, which cannot meet the overall automatic equipment of the grouped modules. Therefore, the welding efficiency is low, the welding speed is slow, there are many weld defects, and the welding quality cannot be guaranteed. Therefore, technical personnel in this field provide a soft-pack battery ear welding tool to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose a soft-pack battery tab welding tool. The soft-pack battery tab welding tool can accurately position the soft-pack battery through the combined use of a positioning plate, a clamping assembly and a pressurizing assembly. At the same time, it has the characteristics of improving the quality of cold welding and improving welding efficiency. It can also be used individually or in groups according to the situation of the automatic equipment to further improve the welding efficiency.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A soft-pack battery tab welding tool comprises a fixed base, the lower side wall of the fixed base is connected to a lifting plate by bolts distributed in a rectangular array, the front and rear sides of the upper side wall of the fixed base are bolted to a limiting bottom plate, the left and right sides of the upper side wall of the fixed base are bolted to support and limit plates, the front and rear sides of the upper side walls of the two support and limit plates are both threadedly connected to locking bolts, the upper side walls of the two support and limit plates are connected to positioning plates by four locking bolts, the front and rear top positions of the two support and limit plates are connected to clamping assemblies, and the tops of the two support and limit plates are bolted to a pressurizing assembly;

[0007] Through the above technical scheme, the soft-pack battery is set on the lifting plate, and the height of the soft-pack battery can be increased by screwing the bolts on the lifting plate, and the soft-pack battery can be limited by two limiting bottom plates and two supporting limiting plates. After the soft-pack battery is placed, the positioning plate is fixed to the top of the soft-pack battery by locking bolts, and the electrode sheet of the soft-pack battery is positioned by the groove on the positioning plate. After the preliminary positioning is completed, the pressure component and the clamping component are adjusted respectively, and the electrode sheet on the top of the battery soft pack can be pressurized and reinforced by the pressure component and the clamping component, and the electrode sheet of the battery soft pack can be positioned by the welding holes set on the pressure component and the clamping component.

[0008] The adjusting eccentric wheel is arranged in the installation groove, and the adjusting rod is connected with the adjusting eccentric wheel at the rear side of the adjusting plate, and the adjusting eccentric wheel is closely attached to the front side wall of the adjusting plate.

[0009] With the above technical scheme, the adjusting eccentric wheel is driven to rotate by rotating the adjusting rod, and then the adjusting eccentric wheel is used to drive the wedge-shaped guide block to approach the direction of the battery soft pack. As the wedge-shaped guide block moves, the clamping plate is limited and slidably connected in the clamping frame, so the clamping plate is lifted up by the wedge-shaped guide block, so that the clamping plate can be clamped under the electrode sheet of the battery soft pack, so that the electrode sheet is clamped between the positioning plate and the clamping plate. By adjusting the clamping plate in this way, the left and right ends of the clamping plate will not warp during the adjustment process, thereby ensuring the fitting effect of the clamping plate. In addition, the clamping plate can be adjusted by simply rotating the adjusting rod, which is very convenient to operate.

[0010] Furthermore, the clamping frame is fixedly connected to the side walls of the two support limit plates;

[0011] Through the above technical solution, the clamping components are connected by using the support and limiting plates.

[0012] Further, the pressurizing assembly includes a pressurizing tightening bolt and a pressurizing plate, and the pressurizing plate is tightened by the pressurizing tightening bolt;

[0013] Through the above technical solution, the pressure plate is adjusted by pressurizing and tightening the bolts so that it can pressurize and tighten the left and right ends of the battery soft pack, and the grooves opened on the plate body of the pressure plate can realize the positioning of the welding holes on the electrode sheets.

[0014] Furthermore, a slide groove is provided at the connection between the bottom of the support limit plate and the fixed base;

[0015] Through the above technical solution, the positions of the two supporting limit plates are adjusted by the slide grooves, so that the tooling can be adapted to different types of battery soft packs.

[0016] Furthermore, one side wall of the two support and limit plates close to each other, the lower side wall of the positioning plate, and the upper side wall of the lifting plate are all covered with insulating material;

[0017] Through the above technical solution, the contact surfaces between the tooling and the soft-pack module are in contact with each other through insulating materials, thereby protecting the collection board and electrode sheet at the lower end of the soft-pack grouping module as a whole.

[0018] The utility model has the following beneficial effects:

[0019] 1. In the utility model, the positioning plate is fixed to the top of the soft-pack battery by means of locking bolts, and the electrode sheet of the soft-pack battery is positioned by means of the grooves on the positioning plate. After the preliminary positioning is completed, the pressurizing component and the clamping component are adjusted respectively, and the electrode sheet on the top of the battery soft pack can be pressurized and reinforced by means of the pressurizing component and the clamping component, and the electrode sheet of the battery soft pack can be accurately positioned by means of the welding holes provided on the pressurizing component and the clamping component.

[0020] 2. In the utility model, the adjusting eccentric wheel is driven to rotate by rotating the adjusting rod, and then the adjusting eccentric wheel is used to drive the wedge-shaped guide block to approach the direction of the battery soft pack, so that the clamping plate can be clamped under the electrode sheet of the battery soft pack, so that the electrode sheet is clamped between the positioning plate and the clamping plate. By adjusting the clamping plate in this way, the left and right ends of the clamping plate will not warp during the adjustment process, thereby ensuring the fitting effect of the clamping plate. In addition, the clamping plate can be adjusted by simply rotating the adjusting rod, which is very convenient to operate.

[0021] 3. In the present invention, the contact surfaces of the tooling and the soft-pack module are in contact with each other through insulating materials, thereby protecting the collection board and electrode sheet at the lower end of the soft-pack grouping module as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional diagram of the welding tool for the tabs of the soft-pack battery proposed in the utility model;

[0023] Figure 2 A top view of the soft-pack battery tab welding tooling proposed in the utility model;

[0024] Figure 3 for Figure 2 Isometric section view along AA;

[0025] Figure 4This is an isometric view of the soft-pack battery tab welding tooling proposed in the utility model;

[0026] Figure 5 This is a bottom schematic diagram of the soft-pack battery tab welding tooling proposed in the utility model.

[0027] Legend:

[0028] 1. Fixed base; 2. Limiting bottom plate; 3. Supporting limiting plate; 400, pressurizing assembly; 5. Positioning plate; 600, clamping assembly; 7. Locking bolt; 8. Lifting plate;

[0029] 401, pressurizing and tightening the bolts; 402, pressurizing plate;

[0030] 601, clamping plate; 602, wedge-shaped bottom surface; 603, wedge-shaped guide block; 604, clamping frame; 605, adjusting eccentric wheel; 606, mounting groove; 607, adjusting rod. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1-5The utility model provides an embodiment: a welding tool for a soft-pack battery tab, comprising a fixed base 1, the lower side wall of the fixed base 1 is connected with a lifting plate 8 by bolts distributed in a rectangular array, the front and rear sides of the upper side wall of the fixed base 1 are bolted to a limiting bottom plate 2, the left and right sides of the upper side wall of the fixed base 1 are bolted to support and limit plates 3, the front and rear sides of the upper side walls of the two support and limit plates 3 are both threadedly connected with locking bolts 7, the upper side walls of the two support and limit plates 3 are connected with a positioning plate 5 by four locking bolts 7, the front and rear top positions of the two support and limit plates 3 are connected with a clamping assembly 600, and the tops of the two support and limit plates 3 are bolted to a pressurizing assembly 400. The soft-pack battery is set on the lifting plate 8. The height of the soft-pack battery can be increased by screwing the bolts on the lifting plate 8, and the soft-pack battery can be limited by two limiting bottom plates 2 and two supporting limiting plates 3. After the soft-pack battery is placed, the positioning plate 5 is fixed to the top of the soft-pack battery by the locking bolts 7, and the electrode sheet of the soft-pack battery is positioned by the groove on the positioning plate 5. After the preliminary positioning is completed, the pressure component 400 and the clamping component 600 are adjusted respectively. The electrode sheet on the top of the battery soft pack can be pressurized and reinforced by the pressure component 400 and the clamping component 600, and the electrode sheet of the battery soft pack can be positioned by the welding holes set on the pressure component 400 and the clamping component 600.

[0033] The clamping assembly 600 includes a clamping plate 601, a clamping frame 604, an adjusting eccentric wheel 605, a wedge-shaped guide block 603 and an adjusting rod 607. The clamping plate 601 is limitedly slidably connected to the inner sides of the two side walls of the clamping plate 601. The lower side wall of the clamping plate 601 is provided with a wedge-shaped bottom surface 602. The wedge-shaped guide block 603 is limitedly slidably connected to the inner sides of the two side walls of the clamping frame 604 and the upper side wall of the wedge-shaped guide block 603 is tightly attached to the wedge-shaped bottom surface 602 of the clamping plate 601. A mounting groove 606 is provided in the middle position of the front side wall of the clamping frame 604. An adjusting eccentric wheel 605 is arranged in the mounting groove 606. An adjusting rod 607 is connected to the mounting groove 606 through a bearing. The adjusting rod 607 is fixedly connected to the rear side of the center of the adjusting eccentric wheel 605. The adjusting eccentric wheel 605 fits tightly in the wedge-shaped bottom surface 602. On the front side wall of the guide block 603, the adjusting eccentric wheel 605 is driven to rotate by rotating the adjusting rod 607, and then the adjusting eccentric wheel 605 is used to drive the wedge-shaped guide block 603 to approach the direction of the battery soft pack. As the wedge-shaped guide block 603 moves, since the clamping plate 601 is limitedly slidably connected in the clamping frame 604, the clamping plate 601 is lifted up by the wedge-shaped guide block 603, so that the clamping plate 601 can be clamped under the electrode sheet of the battery soft pack, so that the electrode sheet is clamped between the positioning plate 5 and the clamping plate 601. By adjusting the clamping plate 601 in this way, the left and right ends of the clamping plate 601 will not curl during the adjustment process, thereby ensuring the fitting effect of the clamping plate 601, and the clamping plate 601 can be adjusted by simply rotating the adjusting rod 607, which is very convenient to operate.

[0034] The clamping frame 604 is fixedly connected to the side walls of the two supporting and limiting plates 3, and the supporting and limiting plates 3 are used to connect the clamping assembly 600. The pressurizing assembly 400 includes a pressurizing and tightening bolt 401 and a pressurizing plate 402. The pressurizing plate 402 is adjusted by pressurizing and tightening the bolt 401 to pressurize and tighten the left and right ends of the battery soft pack, and the grooves provided on the plate body of the pressurizing plate 402 can realize the positioning of the electrode sheet by the welding hole. A slide groove is provided at the connection between the bottom of the supporting and limiting plates 3 and the fixed base 1. The positions of the two supporting and limiting plates 3 are adjusted by the slide groove. In this way, the tooling can be adapted to different types of battery soft packs. One side wall of the two supporting and limiting plates 3 close to each other, the lower side wall of the positioning plate 5 and the upper side wall of the lifting plate 8 are all covered with insulating material. The contact surface of the tooling and the soft pack module is in contact with the insulating material, which protects the collection plate and electrode sheet at the lower end of the soft pack grouping module as a whole.

[0035] Working principle: the soft-pack battery is set on the lifting plate 8. The height of the soft-pack battery can be increased by screwing the bolts on the lifting plate 8, and the soft-pack battery can be limited by the two limiting bottom plates 2 and the two supporting limiting plates 3. After the soft-pack battery is placed, the positioning plate 5 is fixed to the top of the soft-pack battery by the locking bolts 7, and the electrode sheet of the soft-pack battery is positioned by the groove on the positioning plate 5. After the preliminary positioning is completed, the adjusting eccentric wheel 605 is driven to rotate by rotating the adjusting rod 607, and then the adjusting eccentric wheel 605 is used to drive the wedge-shaped guide block 603 to approach the direction of the battery soft pack. As the wedge-shaped guide block 603 moves, the clamping plate 601 is limited and slidably connected in the clamping frame 604, so that the clamping plate 601 is lifted up by the wedge-shaped guide block 603, so that the clamping plate 601 can be clamped under the electrode sheet of the battery soft pack, so that the electrode sheet is clamped between the positioning plate 5 and the clamping plate 60 1, and the clamping plate 601 is adjusted in this way, so that the left and right ends of the clamping plate 601 will not warp during the adjustment process, thereby ensuring the fitting effect of the clamping plate 601, and the clamping plate 601 can be adjusted by simply rotating the adjusting rod 607, which is very convenient to operate. The pressure plate 402 is adjusted by pressurizing and tightening the bolts 401 to pressurize and tighten the left and right ends of the battery soft pack, and the grooves provided on the plate body of the pressure plate 402 can realize the positioning of the electrode sheet by the welding holes, and the electrode sheet of the battery soft pack can be positioned by the welding holes provided on the pressure component 400 and the clamping component 600, and the side walls of the two supporting limit plates 3 close to each other, the lower side wall of the positioning plate 5 and the upper side wall of the lifting plate 8 are all covered with insulating material, and the contact surfaces of the tooling and the soft pack module are in contact with the insulating material, so as to protect the collection plate and the electrode sheet at the lower end of the soft pack grouping module as a whole.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. 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 soft-pack battery tab welding tool, comprising a fixed base (1), characterized in that: The lower side wall of the fixed base (1) is connected to a lifting plate (8) by bolts arranged in a rectangular array, the upper side wall of the fixed base (1) is connected to a limiting bottom plate (2) by bolts on the front and rear sides, the upper side wall of the fixed base (1) is connected to a supporting limiting plate (3) by bolts on the left and right sides, the upper side walls of the two supporting limiting plates (3) are both threadedly connected to locking bolts (7) at the front and rear sides, the upper side walls of the two supporting limiting plates (3) are connected to a positioning plate (5) by four locking bolts (7), the top positions of the two supporting limiting plates (3) are connected to a clamping assembly (600), and the tops of the two supporting limiting plates (3) are connected to a pressurizing assembly (400) by bolts.

2. The soft pack battery tab welding tool according to claim 1, characterized in that: The clamping assembly (600) comprises a clamping plate (601), a clamping frame (604), an adjusting eccentric wheel (605), a wedge-shaped guide block (603) and an adjusting rod (607); the clamping plate (601) is slidably connected to the inner sides of the two side walls of the clamping plate (601); the lower side wall of the clamping plate (601) is provided with a wedge-shaped bottom surface (602); the wedge-shaped guide block (603) is slidably connected to the inner sides of the two side walls of the clamping frame (604); and the upper side wall of the wedge-shaped guide block (603) is tightly connected to the inner sides of the two side walls of the clamping frame (604). A mounting groove (606) is provided in the middle of the front side wall of the clamping frame (604) and is attached to the wedge-shaped bottom surface (602) of the clamping plate (601). An adjusting eccentric wheel (605) is arranged in the mounting groove (606). An adjusting rod (607) is connected to the mounting groove (606) via a bearing. The adjusting rod (607) is fixedly connected to the rear side of the center of the adjusting eccentric wheel (605). The adjusting eccentric wheel (605) is tightly attached to the front side wall of the wedge-shaped guide block (603).

3. The soft pack battery tab welding tool according to claim 2, characterized in that: The clamping frame (604) is fixedly connected to the side walls of the two supporting and limiting plates (3).

4. The soft pack battery tab welding tool according to claim 1, characterized in that: The pressurizing assembly (400) comprises a pressurizing tightening bolt (401) and a pressurizing plate (402), wherein the pressurizing plate (402) is tightened by the pressurizing tightening bolt (401).

5. The soft pack battery tab welding tool according to claim 1, characterized in that: A sliding groove is provided at the connection between the bottom of the support limiting plate (3) and the fixed base (1).

6. The soft pack battery tab welding tool according to claim 1, characterized in that: The side walls of the two support and limit plates (3) that are close to each other, the lower side wall of the positioning plate (5), and the upper side wall of the lifting plate (8) are all covered with insulating material.

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