Lithium battery laser welding equipment

Abstract

The utility model provides lithium battery laser welding equipment, and relates to the technical field of lithium battery production. The lithium battery laser welding equipment comprises a welding table, a lithium battery pack is arranged at the upper end of the welding table, an XYZ three-axis module is fixed to the upper end of the welding table, and a laser welding instrument is arranged at the output end of the XYZ three-axis module; a sliding groove is formed in the middle of the welding table, a connecting structure is arranged in the middle of the welding table, and two limiting frames are arranged on the connecting structure; the connecting structure can drive the two limiting frames to move reversely in the length direction of the sliding grooves so as to flexibly clamp the lithium battery pack placed on the welding table. According to the lithium battery laser welding equipment, the handle is manually rotated to conduct rotation operation, the flexible limiting effect is achieved, the effect of improving the use protection performance of the welding equipment is achieved, the handle is manually rotated to conduct rotation operation, the stable pressing effect is achieved, and the effect of improving the use effect of the welding equipment is achieved.

Description

Technical Field

[0001] This utility model relates to lithium battery laser welding equipment and belongs to the field of lithium battery production technology. Background Art

[0002] Lithium batteries are characterized by high energy, low self-discharge rate, good high and low temperature performance, long charge and discharge life, and no memory effect. They are currently widely used in products such as mobile phones, laptops, digital cameras, electric vehicles, power tools, and new energy vehicles. In the production process of lithium batteries, it is necessary to weld tabs and cover plates on the metal top rod of the lithium battery. This is generally done on laser welding equipment.

[0003] Although existing welding equipment can perform routine laser welding of lithium batteries, in actual use, the lithium battery pack is simply placed on the welding table and then rigidly positioned by a clamp. The rigid connection of the clamp can easily cause the lithium battery pack to be squeezed and damaged, resulting in insufficient protection of the welding equipment. Furthermore, the heat and welding force generated during the welding process can cause the connecting pieces of the lithium battery to shift, leading to welding position misalignment and affecting the welding quality. Consequently, the welding equipment is not performing well. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] This utility model provides a lithium battery laser welding equipment to solve the problems of insufficient protection and poor performance of existing welding equipment.

[0006] (2) Technical solution

[0007] This utility model is achieved through the following technical solution: a lithium battery laser welding equipment, including a welding table, a lithium battery pack is provided on the upper end of the welding table, an XYZ three-axis module is fixed on the upper end of the welding table, and a laser welding instrument is provided at the output end of the XYZ three-axis module;

[0008] The welding table has a sliding groove in the middle and a connecting structure in the middle. The connecting structure has two limiting frames. The connecting structure can move in opposite directions along the length of the sliding groove with the two limiting frames to flexibly clamp the lithium battery pack placed on the welding table.

[0009] Preferably, the connecting structure includes a reciprocating lead screw, with handles fixed at both ends of the reciprocating lead screw. Threaded sleeves are threadedly connected to the outer surfaces of both sides of the reciprocating lead screw. Limiting frames are detachably installed on the upper ends of the two threaded sleeves via bolts. Circular grooves are provided on both sides of the two limiting frames. A sliding plate is slidably connected to the inner wall of each circular groove. Springs are fixed to the disjoint ends of the four sliding plates. A connecting rod is fixed to the middle of each sliding plate. Two rubber pads are fixed to the near ends of the four connecting rods.

[0010] Preferably, the outer surface of the reciprocating lead screw is rotatably connected to the middle of the welding table, the middle of the two threaded sleeves is threadedly connected to the outer surfaces of both sides of the reciprocating lead screw, the outer surfaces of the two threaded sleeves are slidably connected to the inner walls of both sides of the slide groove, the two limiting frames are arranged opposite to each other, and the cross-section of each limiting frame is U-shaped, and the outer surface of the lithium battery pack is in contact with the inner walls of the two limiting frames.

[0011] Preferably, the outer surfaces of the two rubber pads are slidably connected to the inner walls of the two limiting frames, the two ends of each rubber pad are fixed to one end of two adjacent connecting rods, the two rubber pads are arranged opposite each other, the outer surface of each connecting rod is slidably connected to one side of each limiting frame, one end of each spring is fixed to one end of each sliding plate, and the other end of each spring is fixed to the inner wall of each circular groove.

[0012] Preferably, a fixing rod is fixed at the middle of the two disjoint ends of the two rubber pads, a connecting frame is rotatably connected to the disjoint ends of the two fixing rods, a through groove is opened in the middle of the two connecting frames, a support frame is slidably connected to the inner wall of the two through grooves, and a pressing frame is fixed at the close ends of the two connecting frames.

[0013] Preferably, the outer surfaces of the two fixed rods are slidably connected to the middle of the two limiting frames, and the two connecting frames are rotatably connected to the two fixed rods at their disjoint ends. The cross-section of each fixed rod is T-shaped.

[0014] Preferably, the outer surfaces of the two support frames are slidably connected to the inner walls of the two through slots, the lower ends of the two support frames are fixed to the middle of the upper ends of the two limiting frames, the disjoint ends of the two pressing frames are fixed to the near ends of the two connecting frames, the two pressing frames are both L-shaped and the two pressing frames are distributed relative to each other.

[0015] This utility model provides a lithium battery laser welding device, which has the following beneficial effects:

[0016] 1. This lithium battery laser welding equipment operates by manually rotating a handle. The handle, reciprocating lead screw, threaded sleeve, limit frame, circular groove, slide plate, spring, connecting rod, and rubber pad work together to achieve a flexible limiting effect. This limits the lithium battery pack while protecting it, preventing direct force on the lithium battery and thus improving the protective performance of the welding equipment.

[0017] 2. This lithium battery laser welding equipment operates by manually rotating a handle, which allows the limiting frame, rubber pad, fixing rod, connecting frame, through groove, support frame, and pressing frame to work together to achieve a stable pressing effect. This prevents the heat and welding force generated during the welding process from causing the connecting pieces of the lithium battery to shift, thus preventing any impact on the welding quality and improving the overall performance of the welding equipment. Attached Figure Description

[0018] Figure 1 It is a three-dimensional diagram of the utility model;

[0019] Figure 2 This is a cross-sectional view of the welding station of this utility model;

[0020] Figure 3 This is a schematic diagram of the limiting frame structure of this utility model;

[0021] Figure 4 This utility model Figure 3 Enlarged view of the structure of part A.

[0022]

Main component symbol description

[0023] 1. Welding table; 2. Lithium battery pack; 3. XYZ three-axis module; 4. Laser welding machine; 5. Slide groove; 6. Reciprocating lead screw; 7. Handle; 8. Threaded sleeve; 9. Limiting frame; 10. Circular groove; 11. Slide plate; 12. Spring; 13. Connecting rod; 14. Rubber pad; 15. Fixing rod; 16. Connecting frame; 17. Through groove; 18. Support frame; 19. Pressing frame. DETAILED DESCRIPTION

[0024] This utility model provides a lithium battery laser welding device.

[0025] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4The system includes a welding table 1, which serves to hold the lithium battery pack 2. The lithium battery pack 2 is mounted on the upper part of the welding table 1. An XYZ three-axis module 3, also known as a three-coordinate high-precision moving platform, is a platform that achieves precise movement in the X, Y, and Z directions. This is already fully disclosed and will not be elaborated upon here. A laser welding instrument 4, also commonly referred to as a laser welding machine, is installed at the output end of the XYZ three-axis module 3. This is a machine used for laser welding in material processing and is already fully disclosed. A sliding groove 5 is provided in the middle of the welding table 1 for welding... A connecting structure is provided in the middle of the connecting platform 1. The connecting structure includes a reciprocating lead screw 6. Handles 7 are fixed at both ends of the reciprocating lead screw 6. Threaded sleeves 8 are threadedly connected to the outer surfaces of both sides of the reciprocating lead screw 6. Limiting frames 9 are detachably installed on the upper ends of the two threaded sleeves 8 by bolts. The limiting frames 9 can be replaced with corresponding sizes according to actual needs. Circular grooves 10 are opened on both sides of the two limiting frames 9. Sliding plates 11 are slidably connected to the inner wall of each circular groove 10. Springs 12 are fixed at the disjoint ends of the four sliding plates 11. A connecting rod 13 is fixed in the middle of each sliding plate 11. Two rubber pads 14 are fixed at the near ends of the four connecting rods 13.

[0026] Please refer to it again. Figure 1 , Figure 2 , Figure 3 and Figure 4 It is worth noting that the outer surface of the reciprocating screw 6 is rotatably connected to the middle of the welding table 1, the middle of the two threaded sleeves 8 is threadedly connected to the outer surfaces of both sides of the reciprocating screw 6, the outer surfaces of the two threaded sleeves 8 are slidably connected to the inner walls of both sides of the slide groove 5, the two limit frames 9 are arranged opposite to each other, and the cross section of each limit frame 9 is U-shaped. The outer surface of the lithium battery pack 2 is in contact with the inner walls of the two limit frames 9, the outer surfaces of the two rubber pads 14 are slidably connected to the inner walls of the two limit frames 9, the two ends of each rubber pad 14 are fixed to one end of two adjacent connecting rods 13, the two rubber pads 14 are arranged opposite to each other, the outer surface of each connecting rod 13 is slidably connected to one side of each limit frame 9, one end of each spring 12 is fixed to one end of each slide plate 11, and the other end of each spring 12 is fixed to the inner wall of each circular groove 10.

[0027] Please refer to it again. Figure 1 , Figure 2 , Figure 3 and Figure 4It is worth noting that each of the two rubber pads 14 has a fixing rod 15 fixed at the middle of its separated ends. Each of the two fixing rods 15 is rotatably connected to a connecting frame 16 at its separated ends. Each of the two connecting frames 16 has a through groove 17 in its middle. Each of the two through grooves 17 has a support frame 18 slidably connected to its inner wall. Each of the two connecting frames 16 has a pressing frame 19 fixed at its near ends. The outer surfaces of the two fixing rods 15 are slidably connected to the middle of the two limiting frames 9. Each of the two connecting frames 16 is rotatably connected to the separated ends of the two fixing rods 15. The cross-section of each fixing rod 15 is T-shaped. The outer surfaces of the two support frames 18 are slidably connected to the inner walls of the two through grooves 17. The lower ends of the two support frames 18 are fixed to the middle of the upper ends of the two limiting frames 9. The separated ends of the two pressing frames 19 are fixed to the near ends of the two connecting frames 16. Each of the two pressing frames 19 is L-shaped and is distributed relative to each other.

[0028] In use, this invention works as follows: First, the handle 7 is manually rotated, causing the reciprocating screw 6, which is fixedly connected to the handle 7, to rotate under the stability of the welding table 1. This causes the two threaded sleeves 8, which are threaded to the outer surfaces of both sides of the reciprocating screw 6, to move in the opposite direction under the limitation of the slide groove 5. The two reciprocating threaded sleeves 8 drive the two limit frames 9, which are detachably installed above by threads, to move in the opposite direction. The two reciprocating limit frames 9 drive the two rubber pads 14 to move in the opposite direction via the connecting rod 13. The two reciprocating rubber pads 14 first come into contact with the lithium battery pack 2 placed on the welding table 1. As the two limit frames 9 continue to approach, the lithium battery pack 2 compresses the rubber pads 14. The compressed rubber pads 14 drive the slide plate 11 to slide on the inner wall of the circular groove 10 via the connecting rod 13. The sliding slide plate 11 compresses the fixedly connected spring 12. As the spring 12 is continuously compressed, the elastic force generated by the compression of the spring 12 increases until the rubber pad 14 is stopped by the limit frames 9. Stop. At this point, the lithium battery pack 2 is limited to the middle of the welding table 1, achieving a flexible limiting effect. While limiting the lithium battery pack 2, it also protects it, preventing direct force on the lithium battery and thus improving the protective function of the welding equipment. At the same time, the handle 7 is rotated manually, causing the reciprocating screw 6 connected to the handle 7 to move the limiting frame 9 and the rubber pad 14 through the threaded sleeve 8. When the rubber pad 14 is squeezed by the lithium battery pack, it moves. The moved rubber pad 14 moves the fixing rod 15. The moving fixing rod 15 tilts and moves downward through the connecting frame 16 under the stability of the stationary support frame 18. The two tilting and moving connecting frames 16 drive the two pressing frames 19 to press the two connecting pieces placed on the lithium battery 2, achieving a pressing and stabilizing effect. This prevents the heat and welding force generated during the welding process from causing the connecting pieces of the lithium battery to shift, thus preventing the welding quality from being affected and improving the performance of the welding equipment.

[0029] Working principle: Manually rotating handle 7 causes the reciprocating screw 6, which is fixedly connected to handle 7, to move the limiting frame 9 and the rubber pad 14, achieving a flexible limiting effect. This limits and protects the lithium battery pack 2, preventing direct force on the lithium battery and thus improving the protective function of the welding equipment. Simultaneously, manually rotating handle 7 causes the reciprocating screw 6, which is fixedly connected to handle 7, to move the rubber pad 14 and the fixing rod 15, achieving a stable pressing effect. This prevents the heat and welding force generated during welding from causing the lithium battery connecting pieces to shift, thus preventing any impact on the welding quality and improving the overall performance of the welding equipment.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A lithium battery laser welding device, comprising a welding table (1), wherein a lithium battery pack (2) is disposed on the upper end of the welding table (1), characterized in that: The welding table (1) is fixed with an XYZ three-axis module (3) at its upper end, and a laser welding instrument (4) is provided at the output end of the XYZ three-axis module (3). The welding table (1) has a groove (5) in the middle and a connecting structure in the middle. The connecting structure has two limiting brackets (9). The connecting structure can move the two limiting brackets (9) in the opposite direction along the length of the groove (5) to flexibly clamp the lithium battery pack (2) placed on the welding table (1). The connecting structure includes a reciprocating screw (6). Both ends of the reciprocating screw (6) are fixed with handles (7). Both outer surfaces of the reciprocating screw (6) are threaded. The threaded connection is provided with a threaded sleeve (8). The upper ends of the two threaded sleeves (8) are detachably mounted with limit brackets (9) by bolts. The two limit brackets (9) are provided with circular grooves (10) on both sides. Each circular groove (10) is slidably connected with a slide plate (11) on its inner wall. The four slide plates (11) are fixed with springs (12) at their disjoint ends. Each slide plate (11) is fixed with a connecting rod (13) in the middle. The four connecting rods (13) are fixed with two rubber pads (14) at their close ends.

2. The lithium battery laser welding equipment according to claim 1, characterized in that: The outer surface of the reciprocating screw (6) is rotatably connected to the middle of the welding table (1). The middle of the two threaded sleeves (8) is threadedly connected to the outer surfaces of both sides of the reciprocating screw (6). The outer surfaces of the two threaded sleeves (8) are slidably connected to the inner walls of both sides of the slide groove (5). The two limiting frames (9) are arranged opposite to each other. The cross section of each limiting frame (9) is U-shaped. The outer surface of the lithium battery pack (2) is in contact with the inner walls of the two limiting frames (9).

3. The lithium battery laser welding equipment according to claim 2, characterized in that: The outer surfaces of the two rubber pads (14) are slidably connected to the inner walls of the two limiting frames (9). The two ends of each rubber pad (14) are fixed to one end of two adjacent connecting rods (13). The two rubber pads (14) are arranged opposite to each other. The outer surfaces of each connecting rod (13) are slidably connected to one side of each limiting frame (9). One end of each spring (12) is fixed to one end of each sliding plate (11), and the other end of each spring (12) is fixed to the inner wall of each circular groove (10).

4. The lithium battery laser welding equipment according to claim 2, characterized in that: A fixing rod (15) is fixed at the middle of the two rubber pads (14) at their opposite ends. A connecting frame (16) is rotatably connected to the two fixing rods (15) at their opposite ends. A through groove (17) is opened in the middle of the two connecting frames (16). A support frame (18) is slidably connected to the inner wall of the two through grooves (17). A pressing frame (19) is fixed at the close ends of the two connecting frames (16).

5. The lithium battery laser welding equipment according to claim 4, characterized in that: The outer surfaces of the two fixed rods (15) are slidably connected to the middle of the two limiting frames (9), and the two connecting frames (16) are rotatably connected to the two fixed rods (15) at their respective ends. The cross-section of each fixed rod (15) is T-shaped.

6. The lithium battery laser welding equipment according to claim 5, characterized in that: The outer surfaces of the two support frames (18) are slidably connected to the inner walls of the two through slots (17). The lower ends of the two support frames (18) are fixed to the middle of the upper ends of the two limit frames (9). The disjointed ends of the two pressing frames (19) are fixed to the near ends of the two connecting frames (16). The two pressing frames (19) are both L-shaped and are distributed relative to each other.

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