Lithium battery tab welding auxiliary tool

Abstract

The utility model belongs to the field of welding auxiliary tools, and particularly relates to a lithium battery tab welding auxiliary tool which comprises a tool base, a fixed clamping plate is fixedly connected to the middle of the upper end of the tool base, a movable clamping plate is connected to the upper end of the tool base in a sliding mode, and rubber pads are bonded to the surfaces of the movable clamping plate and the fixed clamping plate. The bottom of the movable clamping plate is fixedly connected with a sliding block, the sliding block penetrates through the tool base and is in sliding connection with the tool base, and the bottom of the tool base is fixedly connected with a fixing plate. The side clamping mechanism is arranged on the tool base, the adjusting rod is rotated through the rotary knob, the adjusting rod can control the adjusting sleeve to axially move on the adjusting rod through thread movement between the adjusting rod and the adjusting sleeve, and when the adjusting sleeve moves downwards, the semicircular base at the tail end of the adjusting sleeve exerts transverse thrust on the two inclined plane blocks, so that the side clamping mechanism can clamp the two inclined plane blocks. Therefore, the distance between the two clamping blocks is adjusted, and the lithium battery clamping device is suitable for different numbers of lithium batteries.

Description

Technical Field

[0001] This utility model relates to the field of welding auxiliary tooling technology, specifically to a welding auxiliary tooling for lithium battery tabs. Background Technology

[0002] Currently, in the power lithium battery industry, the series and parallel connections of individual cells within a module are generally made of busbars, which are typically made of metal, such as copper or aluminum. The connection between the busbars and the cell terminals / tabs is generally achieved using laser penetration welding.

[0003] A search revealed a utility model patent with patent authorization announcement number CN211136043U, which discloses an auxiliary tooling for welding lithium battery tabs. The tooling includes a base, which is a rectangular plate. From front to back, the base is arranged with tab positioning blocks, welding head positioning blocks, core package width positioning blocks, and core package height positioning blocks. Four tab positioning blocks are arranged side by side, two welding head positioning blocks are arranged symmetrically, two core package width positioning blocks are arranged symmetrically, and one core package height positioning block is provided.

[0004] However, due to the varying number of batteries in existing lithium battery packs, traditional auxiliary tooling is not very suitable for this purpose. Furthermore, if the batteries are not aligned in a straight line, it will directly affect the accuracy of the electrode tab welding position. Utility Model Content

[0005] The purpose of this utility model is to provide an auxiliary tooling for welding lithium battery tabs, which solves the problem that existing auxiliary tooling is not very applicable to lithium battery packs due to varying numbers of batteries. It also solves the problem that if the batteries are not on the same straight line, it will directly affect the accuracy of the electrode tab welding position.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary tooling for welding lithium battery tabs, comprising a tooling base, a fixed clamping plate fixedly connected to the upper middle part of the tooling base, a movable clamping plate slidably connected to the upper end of the tooling base, adhesive pads being adhered to the surfaces of both the movable clamping plate and the fixed clamping plate, a slider fixedly connected to the bottom of the movable clamping plate, the slider penetrating the tooling base and slidably connected to the tooling base, a fixed plate fixedly connected to the bottom of the tooling base, a cylinder fixedly mounted on the fixed plate, the piston rod end of the cylinder being fixedly connected to the slider, and a side clamping mechanism being provided on the tooling base.

[0007] Preferably, a guide post is fixedly connected inside the tooling base, and the guide post passes through the slider and is slidably connected to the slider. The guide post guides the movement of the slider and the movable clamping plate.

[0008] Preferably, the side clamping mechanism includes a hollow shell fixedly connected to the upper end of the tooling base. Two slides are slidably connected to the side wall of the hollow shell, and the slides penetrate the hollow shell. A clamping block is fixedly connected to one end of each slide, and a inclined block is fixedly connected to the other end. An adjusting rod is mounted on the top of the hollow shell via a bearing, and the adjusting rod penetrates the hollow shell. A knob is fixedly connected to the top of the adjusting rod, and an adjusting sleeve is threadedly connected to the outer side of the adjusting rod. A semi-circular seat is fixedly connected to the bottom of the adjusting sleeve, and the semi-circular seat abuts against the inclined block. The side clamping mechanism provides a clamping and fixing function for the side of the lithium battery, and its adjustability makes it suitable for different numbers of lithium batteries.

[0009] Preferably, a vertical plate is fixedly connected to the bottom inner side of the hollow shell, and guide rods are fixedly connected to both sides of the vertical plate. The ends of the guide rods are fixedly connected to the inner wall of the hollow shell, and the guide rods penetrate the inclined block and are slidably connected to the inclined block. The guide rods guide the lateral movement of the inclined block under force.

[0010] Preferably, a spring is sleeved on the outer side of the guide rod, one end of the spring is fixedly connected to the inclined block, and the other end of the spring is fixedly connected to the inner wall of the hollow shell. The spring allows a reaction force to be applied to the inclined block, thus aiding in its repositioning.

[0011] Preferably, a guide plate is fixedly connected to the outer side of the adjusting sleeve, and a guide frame is fixedly connected to the inner wall of the hollow shell. The guide frame passes through the guide plate and is slidably connected to it. The guide plate and guide frame provide guidance for the axial movement of the adjusting sleeve along the adjusting rod.

[0012] Preferably, the guide plate has ball bearings inside, and the ball bearings are slidably connected to the guide frame. The ball bearings reduce the relative friction between the guide plate and the guide frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model provides a side clamping mechanism on the tooling base. By rotating the adjusting rod with a knob, the adjusting rod moves axially through the threaded movement between itself and the adjusting sleeve. When the adjusting sleeve moves downward, the semi-circular seat at the end of the adjusting sleeve applies a lateral thrust to the two inclined blocks, thereby adjusting the distance between the two clamping blocks. This makes it suitable for different numbers of lithium batteries.

[0015] 2. This utility model sets a fixed clamping plate on the tooling base, and then sets a movable clamping plate on the tooling base that is pushed laterally by a cylinder. Both the movable clamping plate and the fixed clamping plate are equipped with rubber pads. In this way, when the cylinder pushes the movable clamping plate to move towards the fixed clamping plate, the lithium battery can be clamped and fixed, and the lithium batteries are all in a straight line, thereby ensuring the accuracy of the electrode ear welding position. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 This utility model Figure 1 A partial structural diagram;

[0018] Figure 3 This utility model Figure 1 A rear sectional view of the hollow shell;

[0019] Figure 4 This utility model Figure 3 Enlarged view of point A.

[0020] In the diagram: 1. Tooling base; 2. Fixed clamping plate; 3. Side clamping mechanism; 4. Movable clamping plate; 5. Rubber pad; 6. Slider; 7. Fixed plate; 8. Cylinder; 9. Guide column; 31. Hollow shell; 32. Slide carriage; 33. Clamping block; 34. Inclined block; 35. Adjusting rod; 36. Adjusting sleeve; 37. Semicircular seat; 38. Knob; 39. Vertical plate; 310. Guide rod; 311. Spring; 312. Guide plate; 313. Guide frame; 314. Ball bearing. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-3A lithium battery tab welding auxiliary fixture includes a fixture base 1. A fixed clamping plate 2 is fixedly connected to the upper middle part of the fixture base 1. A movable clamping plate 4 is slidably connected to the upper end of the fixture base 1. Adhesive pads 5 are adhered to the surfaces of both the movable clamping plate 4 and the fixed clamping plate 2. A slider 6 is fixedly connected to the bottom of the movable clamping plate 4, passing through the fixture base 1 and slidably connected to it. A fixed plate 7 is fixedly connected to the bottom of the fixture base 1, and a cylinder 8 is fixedly mounted on the fixed plate 7. The piston rod end of the cylinder 8 is fixedly connected to the slider 6. A guide post 9 is fixedly connected inside the fixture base 1, passing through the slider 6 and slidably connected to it. The guide post 9 guides the movement of the slider 6 and the movable clamping plate 4.

[0023] Please see Figures 1-3 A side clamping mechanism 3 is provided on the fixture base 1. The side clamping mechanism 3 includes a hollow shell 31 fixedly connected to the upper end of the fixture base 1. Two slides 32 are slidably connected to the side wall of the hollow shell 31, and the slides 32 are set through the hollow shell 31. A clamping block 33 is fixedly connected to one end of the slides 32, and an inclined block 34 is fixedly connected to the other end of the slides 32. An adjusting rod 35 is installed on the top of the hollow shell 31 through a bearing, and the adjusting rod 35 is set through the hollow shell 31. A knob 38 is fixedly connected to the top of the adjusting rod 35. An adjusting sleeve 36 is threadedly connected to the outside of the adjusting rod 35. A semi-circular seat 37 is fixedly connected to the bottom of the adjusting sleeve 36, and the semi-circular seat 37 abuts against the inclined block 34. Through the setting of the side clamping mechanism 3, the side of the lithium battery is clamped and fixed, and its adjustability makes it suitable for different numbers of lithium batteries.

[0024] Please see Figures 3-4 A vertical plate 39 is fixedly connected to the bottom inner side of the hollow shell 31. Guide rods 310 are fixedly connected to both sides of the vertical plate 39. The end of the guide rod 310 is fixedly connected to the inner wall of the hollow shell 31. The guide rod 310 passes through the inclined block 34 and is slidably connected to the inclined block 34. The guide rod 310 guides the lateral movement of the inclined block 34 under force. A spring 311 is sleeved on the outer side of the guide rod 310. One end of the spring 311 is fixedly connected to the inclined block 34, and the other end of the spring 311 is fixedly connected to the inner wall of the hollow shell 31. The spring 311 applies a reaction force to the inclined block 34, which helps to reset it. A guide plate 312 is fixedly connected to the outer side of the adjusting sleeve 36. A guide frame 313 is fixedly connected to the inner wall of the hollow shell 31. The guide frame 313 passes through the guide plate 312 and is slidably connected to the guide plate 312. The guide plate 312 and guide frame 313 provide guidance for the axial movement of the adjusting sleeve 36 along the adjusting rod 35. The guide plate 312 contains ball bearings 314, which are slidably connected to the guide frame 313. The ball bearings 314 reduce the relative friction between the guide plate 312 and the guide frame 313.

[0025] The specific implementation process of this utility model is as follows: In use, firstly, each lithium battery is placed in the upper middle part of the tooling base 1. Then, the cylinder 8 pushes the slider 6, and the slider 6 drives the movable clamping plate 4 to move towards the fixed clamping plate 2, which can clamp and fix the lithium batteries. The lithium batteries are all in a straight line, thus ensuring the accuracy of the electrode ear welding position. Then, the adjusting rod 35 is rotated by the knob 38, and the adjusting sleeve 36 moves axially through the threaded movement between it and the adjusting rod 35. When the adjusting sleeve 36 moves down, the semi-circular seat 37 at the end of the adjusting sleeve 36 applies a lateral pushing force to the two inclined blocks 34, thereby adjusting the distance between the two clamping blocks 33. This is applicable to different numbers of lithium batteries.

[0026] 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 battery tab welding auxiliary tooling, comprising a tooling base (1), characterized in that: A fixed clamping plate (2) is fixedly connected to the middle of the upper end of the tooling base (1). A movable clamping plate (4) is slidably connected to the upper end of the tooling base (1). A rubber pad (5) is glued to the surface of both the movable clamping plate (4) and the fixed clamping plate (2). A slider (6) is fixedly connected to the bottom of the movable clamping plate (4). The slider (6) passes through the tooling base (1) and is slidably connected to the tooling base (1). A fixed plate (7) is fixedly connected to the bottom of the tooling base (1). A cylinder (8) is fixedly installed on the fixed plate (7). The piston rod end of the cylinder (8) is fixedly connected to the slider (6). A side clamping mechanism (3) is provided on the tooling base (1).

2. The auxiliary tooling for welding lithium battery tabs according to claim 1, characterized in that: The tooling base (1) is internally fixedly connected to a guide post (9), which passes through the slider (6) and is slidably connected to the slider (6).

3. The auxiliary tooling for welding lithium battery tabs according to claim 1, characterized in that: The side clamping mechanism (3) includes a hollow shell (31) fixedly connected to the upper end of the tooling base (1). Two slides (32) are slidably connected to the side wall of the hollow shell (31), and the slides (32) are set through the hollow shell (31). A clamping block (33) is fixedly connected to one end of the slide (32), and an inclined block (34) is fixedly connected to the other end of the slide (32). An adjusting rod (35) is installed on the top of the hollow shell (31) through a bearing, and the adjusting rod (35) is set through the hollow shell (31). A knob (38) is fixedly connected to the top of the adjusting rod (35). An adjusting sleeve (36) is threadedly connected to the outer side of the adjusting rod (35). A semi-circular seat (37) is fixedly connected to the bottom of the adjusting sleeve (36), and the semi-circular seat (37) abuts against the inclined block (34).

4. The auxiliary tooling for welding lithium battery tabs according to claim 3, characterized in that: A vertical plate (39) is fixedly connected to the bottom inner side of the hollow shell (31). Guide rods (310) are fixedly connected to both the left and right sides of the vertical plate (39). The end of the guide rod (310) is fixedly connected to the inner wall of the hollow shell (31). The guide rod (310) passes through the inclined block (34) and is slidably connected to the inclined block (34).

5. The auxiliary tooling for welding lithium battery tabs according to claim 4, characterized in that: A spring (311) is sleeved on the outside of the guide rod (310). One end of the spring (311) is fixedly connected to the inclined block (34), and the other end of the spring (311) is fixedly connected to the inner wall of the hollow shell (31).

6. The auxiliary tooling for welding lithium battery tabs according to claim 3, characterized in that: The outer side of the adjusting sleeve (36) is fixedly connected to a guide plate (312), and the inner wall of the hollow shell (31) is fixedly connected to a guide frame (313). The guide frame (313) passes through the guide plate (312) and is slidably connected to the guide plate (312).

7. The auxiliary tooling for welding lithium battery tabs according to claim 6, characterized in that: The guide plate (312) is provided with a ball bearing (314) inside, and the ball bearing (314) is slidably connected to the guide frame (313).

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