Blade battery welding jig

Abstract

The utility model relates to the field of power battery production equipment, in particular to a blade battery welding jig which comprises an epoxy plate, a connecting aluminum row, a blade battery, a supporting frame, an elastic belt and a limiting block. The two sets of supporting frames are adopted for limiting the blade battery, it is guaranteed that the battery is kept stable in the welding process, welding deviation caused by displacement is effectively avoided, welding points are accurately aligned, welding precision and quality are improved, meanwhile, stability in the welding process is guaranteed through limiting electromagnetism, welding operation is smoother, and the welding efficiency is improved. Repair welding or reworking time caused by welding defects is shortened, production efficiency is improved, the elastic band is adopted for conducting adaptive limiting according to blade batteries of different lengths, batteries of various sizes are rapidly adapted, the jig does not need to be frequently replaced or adjusted, welding work of the batteries of different sizes is met, and universality and flexibility of the welding jig are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to power battery production equipment field especially relates to blade cell welding fixture. BACKGROUND

[0002] With the rapid development of new energy battery technology, blade cell is widely used in electric vehicles and other fields because of its safety and high energy density, in the production process of blade cell, welding process is the key link, and welding precision and efficiency directly affect the performance and service life of the battery.

[0003] The existing blade cell welding fixture is usually complex in structure and poor in stability during use, and it is difficult to accurately position the battery for welding work, which affects the overall welding quality and reduces the production efficiency.

[0004] Therefore, in view of the above-mentioned existing blade cell welding fixture, the structure is usually complex, and the stability is poor during use, and it is difficult to accurately position the battery for welding work, which affects the overall welding quality and reduces the production efficiency, and the blade cell welding fixture can be designed, the supporting frame is combined with the elastic belt to adapt to the accurate positioning of the blade cell module, the battery module positioning and assembly instability during welding are avoided, and the welding quality and production efficiency are improved. SUMMARY

[0005] In order to overcome the problem that the existing blade cell welding fixture structure is complex, and the stability is poor during use, and it is difficult to accurately position the battery for welding work, which affects the overall welding quality and reduces the production efficiency.

[0006] The technical scheme of the utility model discloses a blade cell welding fixture, which comprises an epoxy plate, a connecting aluminum row, a blade cell, a supporting frame, an elastic belt and a limiting block.

[0007] As a preferred, the outer wall of the epoxy plate is symmetrically provided with the elastic belt, and the elastic belt is arranged in close contact with the outer wall of the epoxy plate.

[0008] As a preferred, the outer wall corner of the supporting frame is welded with the limiting block, and the inside of the limiting block is provided with a bolt.

[0009] As a preferred, the inside of the limiting block and the elastic belt is provided with a connecting hole, and the limiting block is fixed with the elastic belt through the bolt.

[0010] As a preferred, the inside of the supporting frame is provided with a welding positioning groove for accommodating the connecting aluminum row, and the supporting frame is made of an epoxy plate.

[0011] Preferably, the inner part of the support frame is provided with a connecting groove for accommodating the elastic band, and the elastic band is made of elastic material.

[0012] Preferably, the support frame is of rectangular structure, and the welding positioning groove is matched with the connecting aluminum row.

[0013] The utility model discloses the beneficial effect that:

[0014] Compared with the traditional welding fixture, by adopting two sets of support frame limit blade battery, ensure that the battery keeps stable in the welding process, effectively avoid the welding deviation caused by displacement, make the accurate alignment of the welding point, improve the welding precision and quality, and the stability in the welding process is guaranteed by the limiting electromagnetic, so that the welding operation is more smooth, the repair welding or rework time caused by welding defects is reduced, the production efficiency is improved, the elastic band is adapted to limit according to different length blade battery, a plurality of sizes of batteries are quickly adapted, the fixture does not need to be frequently replaced or adjusted, the welding work of different size batteries is satisfied, and the versatility and flexibility of the welding fixture are improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The whole structure schematic diagram of the blade battery welding fixture of the utility model is shown.

[0016] Figure 2 The support frame structure schematic diagram of the blade battery welding fixture of the utility model is shown.

[0017] Figure 3 The elastic band structure schematic diagram of the blade battery welding fixture of the utility model is shown.

[0018] Figure 4 The limiting block structure schematic diagram of the blade battery welding fixture of the utility model is shown.

[0019] Mark explanation: 1, epoxy board;2, connecting aluminum row;3, blade battery;4, support frame;5, welding positioning groove;6, elastic band;7, limiting block;8, bolt. DETAILED DESCRIPTION

[0020] The utility model is further explained in connection with the drawings and examples.

[0021] Please refer to Figures 1-4 The utility model provides a kind of embodiment: blade battery welding fixture, including epoxy board 1, connecting aluminum row 2, blade battery 3, support frame 4, elastic band 6, limiting block 7, the inside of epoxy board 1 is equipped with several groups of blade battery 3, the one end of several groups of blade battery 3 is equipped with connecting aluminum row 2, two groups of blade battery 3 are fixedly connected by connecting aluminum row 2, and the two ends of epoxy board 1 are equipped with support frame 4.

[0022] Please refer to Figures 1-3 In the embodiment, the outer wall of the epoxy plate 1 is symmetrically provided with an elastic band 6, which is attached to the outer wall of the epoxy plate 1. By using the elastic band 6 to adapt to the length of the blade battery 3, it can quickly adapt to batteries of various sizes without frequent replacement or adjustment of the jig, meet the welding work of batteries of different sizes, improve the versatility and flexibility of the welding jig. Secondly, the elastic band 6 can uniformly apply force to avoid battery deformation or displacement caused by uneven local stress, reduce the problem of welding gap or lifting, improve the welding quality, and the outer wall corner of the support frame 4 is welded with a limiting block 7. The inside of the limiting block 7 is provided with a bolt 8. By using the bolt 8 to insert and fix after the elastic band 6 is attached to the battery, the battery can remain absolutely stationary during welding to prevent shaking or falling caused by vibration or external force during welding, ensuring welding precision and quality.

[0023] Please refer to Figures 2-3 In the embodiment, the limiting block 7 and the elastic band 6 are both provided with connecting holes, and the limiting block 7 is inserted and fixed with the elastic band 6 through the bolt 8. The inside of the support frame 4 is provided with a welding positioning groove 5 for accommodating the connecting aluminum row 2. The support frame 4 is made of epoxy plate 1. By using the support frame 4 made of epoxy plate 1 for limiting, the insulation wire and stability during welding are ensured.

[0024] Please refer to Figures 2-4 In the embodiment, the inside of the support frame 4 is provided with a connecting groove for accommodating the elastic band 6. The elastic band 6 is made of elastic material. By using elastic material to make the elastic band 6, enough clamping force is provided to ensure the stability of the blade battery 3 module during welding. The support frame 4 is of rectangular structure, and the welding positioning groove 5 is matched with the connecting aluminum row 2. By using the welding positioning groove 5 to adapt and limit the connecting aluminum row 2, the battery module is stably fixed in the jig and is not easy to displace.

[0025] In the process of work, first, when the blade battery 3 moves to the welding station along the conveying line, the operator symmetrically prepositions the supporting frame 4 at both ends on both sides of the length direction of the blade battery 3, so that the elastic belt 6 generates axial tensile deformation, wherein the elastic belt 6 has a predetermined tensile coefficient of the belt-shaped elastic body, and is connected with the supporting frame 4 through the connecting groove on the supporting frame 4. Secondly, the pin 8 is inserted into the connecting hole after the elastic belt 6 is attached to the battery to fix it, so that the battery remains absolutely stationary during welding, preventing the battery from shaking or falling off due to vibration or external force during welding. After the pin 8 is inserted, the supporting frame 4 is released, and the elastic belt 6 generates radial contraction movement under the action of elastic restoring force, and forms an interference fit with the end face of the blade battery 3 through the welding positioning groove 5, quickly adapts to batteries of various sizes without frequent replacement or adjustment of the jig, meets the welding work of batteries of different sizes, realizes precise positioning and restraint of the blade battery 3, and makes the battery stable during welding. Effectively avoid the welding deviation caused by displacement, make the precise alignment of the welding point, and realize the precise welding work of the blade battery 3.

[0026] Through the above steps, by adopting two groups of supporting frames 4 to limit the blade battery 3, the battery can be kept stable during welding, effectively avoiding the welding deviation caused by displacement, making the precise alignment of the welding point, improving the welding precision and quality, and at the same time limiting the stability of the electromagnetic welding process, making the welding operation more smooth, reducing the rework time caused by welding defects, improving the production efficiency, adopting the elastic belt 6 to adapt to the limiting of the blade battery 3 of different lengths, quickly adapting to batteries of various sizes without frequent replacement or adjustment of the jig, meeting the welding work of batteries of different sizes, improving the universality and flexibility of the welding jig.

Claims

1. A blade battery welding fixture, comprising an epoxy board (1); characterized in that: It also includes connecting aluminum busbar (2), blade battery (3), support frame (4), elastic band (6), and limiting block (7). Several sets of blade batteries (3) are installed inside the epoxy board (1). Connecting aluminum busbar (2) is installed at one end of several sets of blade batteries (3). Two sets of blade batteries (3) are fixedly connected by connecting aluminum busbar (2). Support frames (4) are provided at both ends of the epoxy board (1).

2. The blade battery welding fixture according to claim 1, characterized in that: The outer wall of the epoxy board (1) is symmetrically provided with elastic strips (6), and the elastic strips (6) are attached to the outer wall of the epoxy board (1).

3. The blade battery (3) welding fixture according to claim 1, characterized in that: A limiting block (7) is welded at the corner of the outer wall of the support frame (4), and a pin (8) is installed inside the limiting block (7).

4. The blade battery welding fixture according to claim 3, characterized in that: Both the limiting block (7) and the elastic band (6) have connecting holes inside. The limiting block (7) is fixed to the elastic band (6) by inserting a pin (8).

5. The blade battery welding fixture according to claim 1, characterized in that: The support frame (4) has a welding positioning groove (5) inside to accommodate the connecting aluminum strip (2), and the support frame (4) is made of epoxy board (1).

6. The blade battery welding fixture according to claim 1, characterized in that: The support frame (4) has a connecting groove inside to accommodate the elastic band (6), which is made of elastic material.

7. The blade battery welding fixture according to claim 5, characterized in that: The support frame (4) is a rectangular structure, and the welding positioning groove (5) matches the connecting aluminum busbar (2).

Images