Lithium battery adapter piece laser welding equipment

Abstract

The utility model discloses a kind of lithium battery adapter piece laser welding equipment, it is related to lithium battery production equipment technical field, after realizing the lithium battery is placed on workbench, opening electric slide rail drive stressed plate drives clamp assembly movement adjustment, so that clamp assembly and lithium battery position correspond, the clamping plate of this time is automatically telescopic adjustment and lithium battery resistance by first compression spring, so that the lithium battery is fixed on workbench and is located at the position below laser welding head, subsequently twists threaded rod, the height adjustment of extrusion of pressing strip on support rod is carried out, so that every group pressing strip is located above adapter piece and carries out pressing positioning to its two sides, again by controller opening electric guide rail drive laser welding head moves, simultaneously opening laser welding head sequentially welds multiple adapter piece and lithium battery, so that guarantee in welding process by pressing strip pressing positioning to each adapter piece, avoid the purpose of misplacement in a moment of welding.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery production equipment technology, and in particular to a laser welding equipment for lithium battery adapter pieces. Background Technology

[0002] In the production process of lithium batteries, the welding of the adapter plate and the cell tab is a critical step. Laser welding, as a high-efficiency, non-contact, high-quality, high-precision and low-deformation welding method, has been widely used in many industries.

[0003] A lithium battery adapter plate laser welding dust extraction mechanism with Chinese patent number CN222536567U has the following advantages: it improves the dust extraction effect and reduces the impact of welding fumes on the quality of the battery cell; it is convenient to disassemble and maintain, and avoids the risk of bolts or screws falling into the battery cell.

[0004] Currently, when welding adapter pieces for lithium batteries using laser welding equipment, the lack of positioning measures for individual welding pieces makes it easy for the welding head to misalign the adapter pieces at the moment of contact. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a laser welding device for lithium battery adapter plates, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a lithium battery adapter plate laser welding device, comprising a base, a support frame symmetrically fixedly connected to the top of the base, a connecting shaft fixedly connected between the two support frames, a laser welding head slidably connected to the support frame, an electric guide rail fixedly connected to the top of the base directly below the connecting shaft, and the laser welding head slidably connected to the electric guide rail via a sliding plate, a worktable fixedly connected to the top of the base below the laser welding head, force plates symmetrically slidably connected to both ends of the worktable, a clamp assembly mounted on the force plate, a lithium battery with an adapter plate placed on the top of the worktable, and the clamp assembly in contact with the lithium battery, two force plates symmetrically having a second sliding groove at one end close to each other, a support rod slidably connected in the second sliding groove, a connecting strip connected to both ends of the support rod by bolts, multiple pressure strips fixedly connected at equal intervals to the end of the connecting strip away from the support rod, a second compression spring fixedly connected to the bottom of the second sliding groove and fixed to the bottom end of the support rod, and a threaded rod extending into the second sliding groove threadedly connected to the top of the force plate, with the threaded rod in contact with the top of the support rod.

[0007] As a further technical solution of this utility model, the clamping assembly includes a first slide groove symmetrically opened at both ends of the worktable, an electric slide rail fixedly connected in the first slide groove, and a force plate slidably connected to the electric slide rail through a slider.

[0008] As a further technical solution of this utility model, symmetrical perforations are provided on the two force plates, and sliding rods are slidably connected in the perforations.

[0009] As a further technical solution of this utility model, two sliding rods are fixedly connected to a clamp at one end, and the clamp is in contact with the positive electrode of the lithium battery.

[0010] As a further technical solution of this utility model, a first compression spring is sleeved on the surface of the slide rod between the clamping plate and the force plate, and the second slide groove is located above the first compression spring.

[0011] As a further technical solution of this utility model, a drawer is provided on the side of the base, and multiple spare pressure strips are placed in the drawer.

[0012] As a further technical solution of this utility model, a controller for controlling the electric guide rail, the electric slide rail and the laser welding head is fixedly connected to the base.

[0013] This invention provides a laser welding device for lithium battery adapter plates, which has the following advantages compared with the prior art:

[0014] This design discloses a laser welding device for lithium battery adapter plates. After placing the lithium battery on the worktable, the electric slide rail drives the force plate to move and adjust the clamping assembly, aligning the clamping assembly with the lithium battery. At this point, the clamping plate automatically extends and retracts via a first compression spring to contact the lithium battery, thus fixing the lithium battery on the worktable directly below the laser welding head. Subsequently, the threaded rod is turned to adjust the height of the pressure strips on the support rod, ensuring that each pressure strip is positioned above the adapter plate and presses and positions it on both sides. The controller then activates the electric guide rail to move the laser welding head, simultaneously welding multiple adapter plates to the lithium battery in sequence. This ensures that each adapter plate is pressed and positioned by the pressure strips during the welding process, preventing misalignment. When the pressure strips need to be replaced after long-term use, the bolts can be loosened to remove the connecting strip from the support rod and replace a set of pressure strips. Spare pressure strips are also stored in the drawer for quick on-site replacement. Attached Figure Description

[0015] Figure 1 An isometric view of a laser welding device for a lithium battery adapter plate laser welding equipment;

[0016] Figure 2 A schematic diagram of the worktable and fixture assembly installation structure of a laser welding equipment for lithium battery adapter plates;

[0017] Figure 3 A partial schematic diagram of a fixture assembly for a lithium battery adapter plate laser welding equipment;

[0018] Figure 4This is a schematic diagram of the pressure bar installation structure of a laser welding equipment for lithium battery adapter plates.

[0019] In the diagram: 1. Base; 2. Support frame; 3. Connecting shaft; 4. Laser welding head; 5. Workbench; 6. First slide groove; 7. Force plate; 8. Slide rod; 9. First compression spring; 10. Clamping plate; 11. Lithium battery; 12. Threaded rod; 13. Adapter plate; 14. Second slide groove; 15. Support rod; 16. Drawer; 17. Connecting strip; 18. Bolt; 19. Pressure strip; 20. Second compression spring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-2 This utility model provides a technical solution for a laser welding equipment for lithium battery adapter plates: It includes a base 1, with support frames 2 symmetrically fixedly connected to the top of the base 1. A connecting shaft 3 is fixedly connected between the two support frames 2. A laser welding head 4 is slidably connected to the support frames 2. An electric guide rail is fixedly connected to the top of the base 1 directly below the connecting shaft 3, and the laser welding head 4 is slidably connected to the electric guide rail via a sliding plate. A worktable 5 is fixedly connected to the top of the base 1, located below the laser welding head 4. Force plates 7 are symmetrically slidably connected to both ends of the worktable 5, and clamping assemblies are installed on the force plates 7. A fixture assembly is placed on the top of the worktable 5. The lithium battery 11 of the adapter plate 13 is in contact with the clamp assembly. The two force plates 7 are symmetrically provided with a second slide groove 14 at one end close to each other. A support rod 15 is slidably connected in the second slide groove 14. The two ends of the support rod 15 are connected to the connecting strip 17 by bolts 18. Multiple pressure strips 19 are fixedly connected at equal intervals at the end of the connecting strip 17 away from the support rod 15. A second compression spring 20 fixed to the bottom of the second slide groove 14 is fixedly connected to the bottom end of the support rod 15. A threaded rod 12 extending into the second slide groove 14 is threadedly connected to the top of the force plate 7, and the threaded rod 12 abuts against the top of the support rod 15.

[0022] Please see Figures 1-3The clamping assembly includes a first slide groove 6 symmetrically located at both ends of the workbench 5. An electric slide rail is fixedly connected in the first slide groove 6, and a force plate 7 is slidably connected to the electric slide rail via a slider. Symmetrical through holes are provided on the two force plates 7, and slide rods 8 are slidably connected in the through holes. A clamping plate 10 is fixedly connected to one end of the two slide rods 8 close to each other, and the clamping plate 10 is in contact with the positive terminal of the lithium battery 11. A first compression spring 9 is sleeved on the surface of the slide rod 8 between the clamping plate 10 and the force plate 7, and a second slide groove 14 is located above the first compression spring 9.

[0023] Please see Figure 1 The base 1 has a drawer 16 on its side, and multiple spare pressure strips 19 are placed inside the drawer 16. The base 1 is fixedly connected to a controller that controls the electric guide rail, the electric slide rail and the laser welding head 4.

[0024] The working principle of this utility model is as follows: After placing the lithium battery 11 on the workbench 5, the electric slide rail drives the force plate 7 to move and adjust the clamping assembly so that the clamping assembly corresponds to the position of the lithium battery 11. At this time, the clamping plate 10 automatically extends and retracts through the first compression spring 9 to contact the lithium battery 11, thereby fixing the lithium battery 11 on the workbench 5 directly below the laser welding head 4. Then, the threaded rod 12 is turned to adjust the height of the pressure strips 19 on the support rod 15, so that each set of pressure strips 19 is positioned above the adapter piece 13. The two sides are pressed and positioned, and then the electric guide rail is activated by the controller to drive the laser welding head 4 to move. At the same time, the laser welding head 4 is activated to weld multiple adapter pieces 13 to the lithium battery 11 in sequence, so as to ensure that each adapter piece 13 is pressed and positioned by the pressure strip 19 during the welding process to avoid misalignment. When the pressure strip 19 needs to be replaced after long-term use, the bolt 18 can be loosened to remove the connecting strip 17 from the support rod 15 to replace a set of pressure strips 19. Spare pressure strips 19 are placed in the drawer 16 for quick replacement on site.

[0025] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A laser welding device for lithium battery adapter plates, comprising a base (1), characterized in that, The base (1) is symmetrically fixedly connected to the top of a support frame (2), and a connecting shaft (3) is fixedly connected between the two support frames (2). A laser welding head (4) is slidably connected to the support frame (2). An electric guide rail is fixedly connected to the top of the base (1) directly below the connecting shaft (3), and the laser welding head (4) is slidably connected to the electric guide rail via a sliding plate. A worktable (5) is fixedly connected to the top of the base (1) below the laser welding head (4). Force plates (7) are symmetrically slidably connected to both ends of the worktable (5). A clamp assembly is installed on the force plate (7). A lithium battery (11) with an adapter plate (13) is placed on the top of the worktable (5), and the clamp assembly... The component is in contact with the lithium battery (11). The two force plates (7) are symmetrically provided with a second groove (14) at one end close to each other. A support rod (15) is slidably connected in the second groove (14). The two ends of the support rod (15) are connected to a connecting strip (17) by bolts (18). Multiple pressure strips (19) are fixedly connected at equal intervals at the end of the connecting strip (17) away from the support rod (15). A second compression spring (20) fixed to the bottom of the second groove (14) is fixedly connected to the bottom end of the support rod (15). A threaded rod (12) extending into the second groove (14) is threadedly connected to the top of the force plate (7), and the threaded rod (12) is in contact with the top of the support rod (15).

2. The laser welding equipment for lithium battery adapter plates according to claim 1, characterized in that, The clamping assembly includes a first slide groove (6) symmetrically located at both ends of the worktable (5), an electric slide rail is fixedly connected in the first slide groove (6), and the force plate (7) is slidably connected to the electric slide rail through a slider.

3. The laser welding equipment for lithium battery adapter plates according to claim 1, characterized in that, The two force-bearing plates (7) are provided with symmetrical perforations, and a sliding rod (8) is slidably connected in the perforations.

4. The laser welding equipment for lithium battery adapter plates according to claim 3, characterized in that, Two slide rods (8) are fixedly connected to a clamp (10) at one end close to each other, and the clamp (10) is in contact with the positive electrode of the lithium battery (11).

5. The laser welding equipment for lithium battery adapter plates according to claim 4, characterized in that, The slide bar (8) is fitted with a first compression spring (9) between the clamping plate (10) and the force plate (7), and the second slide groove (14) is located above the first compression spring (9).

6. The laser welding equipment for lithium battery adapter plates according to claim 3, characterized in that, The base (1) has a drawer (16) on its side, and a number of spare pressure strips (19) are placed in the drawer (16).

7. The laser welding equipment for lithium battery adapter plates according to claim 2, characterized in that, The base (1) is fixedly connected to a controller that controls the electric guide rail, the electric slide rail and the laser welding head (4).

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