A lithium-ion battery welding fixture

Abstract

The utility model relates to the field of lithium ion battery especially relates to a kind of lithium ion battery welding fixture, the lithium ion battery welding fixture, including fixed plate, the fixed plate bottom below place is equipped with clamp box, the fixed plate front end is equipped with sequencing mechanism, sequencing mechanism can be automated and arrange multiple cylindrical batteries, and production efficiency and quality stability are improved, the quick orientation and equidistance array layout of battery are realized, effectively avoid the polarity reverse connection, spacing uneven problem caused by artificial arrangement;The clamping mechanism is installed outside the clamp box, and the clamping mechanism can realize quick disassembly and assembly, substantially shorten the clamping and replacement time of battery module while simplifying operation process, reduce the dependence on artificial skill, significantly improve the flexibility of production line change to adapt to the demand of multi-species small batch production;The utility model improves the efficiency of lithium ion battery welding by the cooperation of sequencing mechanism and clamping mechanism.

Description

Technical Field

[0001] This utility model relates to the field of lithium-ion battery technology, specifically to a lithium-ion battery welding fixture. Background Technology

[0002] Lithium-ion battery welding fixtures are auxiliary positioning and fixing devices specifically designed for battery module manufacturing. Their core function is to ensure that different types of lithium-ion batteries (such as cylindrical, prismatic, or pouch batteries) maintain a predetermined spatial position and contact state during the welding process through precise mechanical constraints and stable pressure control. At the same time, they effectively disperse welding thermal stress and prevent battery deformation or displacement, thereby ensuring that the welded joint meets process requirements in terms of geometric accuracy, electrical connection reliability, and sealing. Ultimately, this achieves high consistency and high yield production of battery modules.

[0003] In the current lithium-ion battery welding process, existing equipment only has basic positioning and clamping functions and lacks an automated battery sorting module. As a result, the production process requires manual labor to remove the batteries to be welded one by one from the hopper or conveyor line and manually adjust their polarity, spacing and arrangement order to the designated station. This not only significantly increases the labor intensity and time cost of operators, but also easily leads to battery misalignment, reverse polarity or arrangement spacing deviation due to human factors, which in turn causes problems such as increased welding defect rate, low production efficiency and difficulty in ensuring product consistency.

[0004] Therefore, we propose a lithium-ion battery welding fixture. Utility Model Content

[0005] The purpose of this invention is to provide a lithium-ion battery welding fixture to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a lithium-ion battery welding fixture, comprising: A fixing plate, wherein a clamp box is installed at the bottom of the fixing plate; A sorting mechanism, comprising a vertical plate, with vertical plates fixedly connected sequentially at equal intervals to the front end of a fixed plate, support plates symmetrically fixedly connected to the front end of the fixed plate, and a storage box slidably installed at the front end of the fixed plate; The clamping mechanism includes a movable slot. The clamping box has movable slots symmetrically opened on both sides. A movable block is slidably installed inside the movable slot. A connecting frame is fixedly connected to the outside of the movable block. An engaging block is fixedly connected to the center of the bottom of the connecting frame.

[0007] Preferably, the sorting mechanism further includes sealing rods. Sealing rods are slidably mounted at equal intervals on the front end of the fixed plate, and guide plates are fixedly connected at equal intervals on the front end of the fixed plate. A first sliding groove is formed inside the fixed plate. A first sliding block drives the storage box at the front end to move directionally along the sliding groove, pushing the battery to the sorting station. A second sliding block drives the sealing rods to slide synchronously, cooperating with the vertical plates and guide plates equidistantly set at the front end of the fixed plate to limit and straighten the battery.

[0008] Preferably, a first sliding block is slidably installed inside the first sliding groove, and the front end of the first sliding block is fixedly connected to the storage box. A first connecting plate is fixedly connected to the back of the first sliding block. A second sliding groove is opened inside the fixed plate. A second sliding block is slidably installed in the second sliding groove at equal intervals. The front end of the second sliding block is fixedly connected to the sealing rod, and a second connecting plate is fixedly connected to the back of the second sliding block.

[0009] Preferably, a turntable is rotatably mounted on the back of the fixed plate, and pull plates are symmetrically fixedly connected to the outer side of the turntable. Rotating rods are fixedly connected to the backs of both the first and second connecting plates, and the outer sides of the rotating rods are rotatably connected to the pull plates. A motor bracket is fixedly connected to the back of the fixed plate, and a stepping motor is mounted on the back of the motor bracket, with the output end of the stepping motor fixedly connected to the turntable. When the stepping motor is started, the motor output end drives the turntable on the back of the fixed plate to rotate. The pull plates symmetrically fixed to the outer side of the turntable rotate synchronously with it. Since the pull plates are rotatably connected to the rotating rods on the backs of the first and second connecting plates, when the pull plates rotate, they pull the first and second sliding blocks through the rotating rods to slide within the first and second sliding grooves inside the fixed plate, respectively.

[0010] Preferably, the clamping mechanism further includes a bidirectional threaded rod. The bidirectional threaded rod is rotatably mounted on the bottom of the clamping box, and its two outer ends engage with meshing blocks. A bidirectional motor is mounted on the outer side of the center of the bidirectional threaded rod, and the output end of the bidirectional motor is fixedly connected to the bidirectional threaded rod. A clamping plate is fixedly connected between the two movable blocks. The bidirectional motor is started under the control of the control panel, and its output end drives the bidirectional threaded rod at the bottom of the clamping box to rotate. The outer ends of the threaded rod engage with meshing blocks at the bottom of the connecting frame, causing the movable blocks in the movable slots on both sides to slide towards each other along the movable slots under the rotational force of the threaded rod. The clamping plate between the movable blocks moves synchronously, firmly clamping and fixing the sorted battery modules.

[0011] Preferably, the clamping plate has a welding port inside.

[0012] Preferably, both the progressive motor and the bidirectional motor are electrically controlled and connected via a control panel.

[0013] Compared with the prior art, the beneficial effects of this utility model are: In terms of production efficiency, the automated operation of the sorting mechanism enables multiple cylindrical batteries to be quickly and oriented in an equidistant array, eliminating the need for manual removal of each battery and adjustment of polarity, spacing, and arrangement order. This significantly reduces the time cost of manual operation and greatly improves the efficiency of the battery arrangement process, laying the foundation for efficient subsequent welding procedures. In terms of ease of operation, the clamping mechanism enables rapid assembly and disassembly of battery modules, greatly shortening clamping and replacement time. It also simplifies the operation process, reduces reliance on the skill level of operators, reduces the intensity of manual labor, and makes production operations simpler and more efficient. Attached Figure Description

[0014] Figure 1 This is one of the overall structural schematic diagrams of this utility model; Figure 2 This is the second schematic diagram of the overall structure of this utility model; Figure 3 This is a schematic diagram of the sorting mechanism of this utility model; Figure 4 This is a schematic diagram of the clamping mechanism of this utility model.

[0015] In the diagram: 1. Fixed plate; 2. Fixture box; 3. Vertical plate; 4. Support plate; 5. Storage box; 6. Sealing rod; 7. Guide plate; 8. First sliding groove; 9. First sliding block; 10. First connecting plate; 11. Second sliding groove; 12. Second sliding block; 13. Second connecting plate; 14. Turntable; 15. Pull plate; 16. Rotating rod; 17. Motor bracket; 18. Progress motor; 19. Movable groove; 20. Movable block; 21. Connecting frame; 22. Engaging block; 23. Bidirectional threaded rod; 24. Bidirectional motor; 25. Clamping plate; 26. Welding port. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-4 A lithium-ion battery welding fixture, comprising: A fixing plate 1, wherein a clamp box 2 is installed at the bottom of the fixing plate 1; The sorting mechanism includes a vertical plate 3, and the front end of the fixed plate 1 is fixedly connected with vertical plates 3 at equal intervals. The front end of the fixed plate 1 is symmetrically fixedly connected with support plates 4, and the front end of the fixed plate 1 is slidably installed with a storage box 5. The clamping mechanism includes a movable groove 19. The clamping box 2 has movable grooves 19 symmetrically opened on both sides. A movable block 20 is slidably installed inside the movable groove 19. A connecting frame 21 is fixedly connected to the outside of the movable block 20. A meshing block 22 is fixedly connected to the bottom center of the connecting frame 21.

[0018] Please see Figure 3 The sorting mechanism also includes sealing rods 6. Sealing rods 6 are slidably mounted at equal intervals on the front end of the fixed plate 1. Guide plates 7 are fixedly connected at equal intervals on the front end of the fixed plate 1. A first sliding groove 8 is formed inside the fixed plate 1. A first sliding block 9 drives the storage box 5 at the front end to move directionally along the sliding groove, pushing the battery to the sorting station. A second sliding block 12 drives the sealing rods 6 to slide synchronously, working in conjunction with the vertical plates 3 and guide plates 7 equidistantly positioned at the front end of the fixed plate 1 to limit and straighten the battery.

[0019] Please see Figure 2 A first sliding block 9 is slidably installed inside the first sliding groove 8, and the front end of the first sliding block 9 is fixedly connected to the storage box 5. A first connecting plate 10 is fixedly connected to the back of the first sliding block 9. A second sliding groove 11 is opened inside the fixed plate 1. A second sliding block 12 is slidably installed in the second sliding groove 11 at equal intervals. The front end of the second sliding block 12 is fixedly connected to the sealing rod 6, and a second connecting plate 13 is fixedly connected to the back of the second sliding block 12.

[0020] Please see Figure 2 A turntable 14 is rotatably mounted on the back of the fixed plate 1. A pull plate 15 is symmetrically fixedly connected to the outer side of the turntable 14. A rotating rod 16 is fixedly connected to the back of both the first connecting plate 10 and the second connecting plate 13, and the outer side of the rotating rod 16 is rotatably connected to the pull plate 15. A motor bracket 17 is fixedly connected to the back of the fixed plate 1. A stepping motor 18 is mounted on the back of the motor bracket 17, and the output end of the stepping motor 18 is fixedly connected to the turntable 14. When the stepping motor 18 is started, the motor output end drives the turntable 14 on the back of the fixed plate 1 to rotate. The pull plates 15, symmetrically fixed to the outer side of the turntable 14, rotate synchronously with it. Since the pull plate 15 is rotatably connected to the rotating rod 16 on the back of the first connecting plate 10 and the second connecting plate 13, when the pull plate 15 rotates, it will pull the first sliding block 9 and the second sliding block 12 through the rotating rod 16 to slide within the first sliding groove 8 and the second sliding groove 11 inside the fixed plate 1.

[0021] Please see Figure 4The clamping mechanism also includes a bidirectional threaded rod 23. The bidirectional threaded rod 23 is rotatably mounted on the bottom of the clamping box 2, and the outer ends of the bidirectional threaded rod 23 are engaged with the meshing blocks 22. A bidirectional motor 24 is mounted on the outer side of the center of the bidirectional threaded rod, and the output end of the bidirectional motor 24 is fixedly connected to the bidirectional threaded rod 23. A clamping plate 25 is fixedly connected between the two movable blocks 20. The bidirectional motor 24 is started under the control of the control panel, and its output end drives the bidirectional threaded rod 23 at the bottom of the clamping box 2 to rotate. The outer ends of the threaded rod are engaged with the meshing blocks 22 at the bottom of the connecting frame 21, so that the movable blocks 20 in the movable grooves 19 on both sides slide towards each other along the movable grooves 19 under the action of the rotational force of the threaded rod. The clamping plate 25 between the movable blocks 20 moves synchronously, firmly clamping and fixing the sorted battery modules.

[0022] Please see Figure 4 The clamping plate 25 has a welding port 26 inside.

[0023] Please see Figure 1-4 The progressive motor 18 and the bidirectional motor 24 are both electrically controlled and connected by the control panel.

[0024] Working Principle: During the sorting stage, after the operator places the cylindrical batteries to be welded into the storage box 5, the control panel starts the stepping motor 18. The motor output drives the turntable 14 on the back of the fixed plate 1 to rotate. The pull plates 15, which are symmetrically fixed on the outside of the turntable 14, rotate synchronously with it. Since the pull plates 15 are rotatably connected to the rotating rods 16 on the back of the first connecting plate 10 and the second connecting plate 13, when the pull plates 15 rotate, they will pull the first sliding block 9 and the second sliding block 12 to slide in the first sliding groove 8 and the second sliding groove 11 inside the fixed plate 1, respectively, through the rotating rods 16. Among them, the first sliding block 9 drives the storage box 5 at the front end to move directionally along the sliding groove, pushing the battery to the sorting station; the second sliding block 12 drives the sealing rod 6 to slide synchronously. Together with the vertical plates 3 and guide plates 7 equidistantly set at the front end of the fixed plate 1, the batteries are limited and regulated, realizing the rapid directional arrangement and equidistant array layout of multiple cylindrical batteries, effectively avoiding the problems of reverse polarity and uneven spacing caused by manual arrangement.

[0025] After the batteries are sorted, the clamping mechanism starts working. The bidirectional motor 24 is started under the control of the control panel. Its output end drives the bidirectional threaded rod 23 at the bottom of the clamp box 2 to rotate. The outer sides of both ends of the threaded rod engage with the meshing blocks 22 at the bottom of the connecting frame 21, so that the movable blocks 20 in the movable slots 19 on both sides slide towards each other along the movable slots 19 under the action of the rotational force of the threaded rod. The clamping plate 25 between the movable blocks 20 moves synchronously, firmly clamping and fixing the sorted battery modules. The welding port 26 opened inside the clamping plate 25 reserves operating space for subsequent welding processes.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lithium-ion battery welding fixture, characterized by, include: Fixing plate (1), with a clamp box (2) installed at the bottom of the fixing plate (1); The sorting mechanism includes a vertical plate (3), the front end of the fixed plate (1) is fixedly connected with the vertical plate (3) at equal intervals, the front end of the fixed plate (1) is symmetrically fixedly connected with the support plate (4), and the front end of the fixed plate (1) is slidably installed with a storage box (5). The clamping mechanism includes a movable slot (19). The clamping box (2) has movable slots (19) symmetrically opened on both sides. A movable block (20) is slidably installed inside the movable slot (19). A connecting frame (21) is fixedly connected to the outside of the movable block (20). A meshing block (22) is fixedly connected to the bottom center of the connecting frame (21).

2. The lithium-ion battery welding fixture of claim 1, wherein: The sorting mechanism also includes a sealing rod (6), and the sealing rod (6) is slidably installed at equal intervals at the front end of the fixing plate (1). The guide plate (7) is fixedly connected at equal intervals at the front end of the fixing plate (1). The first sliding groove (8) is opened inside the fixing plate (1).

3. The lithium-ion battery welding fixture according to claim 2, characterized in that: The first sliding groove (8) has a first sliding block (9) slidably installed inside, and the front end of the first sliding block (9) is fixedly connected to the storage box (5). The back of the first sliding block (9) is fixedly connected to a first connecting plate (10). The fixed plate (1) has a second sliding groove (11) inside. The second sliding groove (11) has a second sliding block (12) slidably installed inside in sequence at equal intervals. The front end of the second sliding block (12) is fixedly connected to the sealing rod (6). The back of the second sliding block (12) is fixedly connected to a second connecting plate (13).

4. The lithium-ion battery welding fixture according to claim 3, characterized in that: A turntable (14) is rotatably mounted on the back of the fixed plate (1). A pull plate (15) is symmetrically fixedly connected to the outside of the turntable (14). A rotating rod (16) is fixedly connected to the back of both the first connecting plate (10) and the second connecting plate (13). The outside of the rotating rod (16) is rotatably connected to the pull plate (15). A motor bracket (17) is fixedly connected to the back of the fixed plate (1). A progress motor (18) is mounted on the back of the motor bracket (17). The output end of the progress motor (18) is fixedly connected to the turntable (14).

5. The lithium-ion battery welding fixture according to claim 1, characterized in that: The clamping mechanism also includes a bidirectional threaded rod (23). The bidirectional threaded rod (23) is rotatably mounted on the bottom of the clamp box (2), and the outer sides of both ends of the bidirectional threaded rod (23) are engaged with the meshing block (22). A bidirectional motor (24) is mounted on the outer side of the center of the bidirectional threaded rod, and the output end of the bidirectional motor (24) is fixedly connected to the bidirectional threaded rod (23). A clamping plate (25) is fixedly connected between the two movable blocks (20).

6. The lithium-ion battery welding fixture according to claim 5, characterized in that: The clamping plate (25) has a welding port (26) inside.

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