Battery rack welding tool

Abstract

The utility model relates to the technical field of battery manufacturing, and discloses a battery rack welding tool which comprises a base. The clamping device comprises a clamping assembly and a pressing assembly which are arranged on the base, the clamping assembly is used for fixing a battery rack, the pressing assembly comprises a pressing piece and a first driving piece, the pressing piece is rotatably connected with the first driving piece and has a first rotating position and a second rotating position, and the first rotating position is located at the first rotating position; when the first driving part moves longitudinally, the pressing part can be driven to move between the first rotating position and the second rotating position, when the pressing part rotates to the first rotating position, the pressing part abuts against the battery rack, and when the pressing part rotates to the second rotating position, the pressing part abuts against the battery rack. And the pressing piece is separated from the battery rack. The battery rack welding tool is simple in structure, efficient in operation and wide in applicability.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery manufacturing, and in particular relates to a battery frame welding tool. Background Art

[0002] With the growth of sustainable energy demand, the rapid development of new energy vehicles and energy storage systems, the automation and efficiency of battery manufacturing have become the focus of the industry. Battery rack welding is crucial to the structural stability and electrical safety of the battery pack. However, traditional welding tooling has shown complexity and inefficiency when adapting to battery racks of different specifications. Specifically, in order to ensure the correct alignment of the battery rack before welding, the clamping parts of the tooling need to perform a series of pre-actions: first, the drive mechanism controls the clamping parts to rise and fall to a height that matches the current battery rack; then, the clamping parts need to be rotated to a position directly above the battery rack; finally, the clamping parts can move downward to complete the fixation of the battery rack. This step-by-step operation mode not only significantly prolongs the preparation time of a single battery rack and reduces overall production efficiency, but also makes the design of the tooling more complicated, increasing the difficulty of equipment maintenance and potential failure rate. Utility Model Content

[0003] The purpose of the utility model is to provide a battery rack welding tool with simple structure, efficient operation and wide applicability in view of the above problems in the prior art.

[0004] The purpose of the utility model can be achieved through the following technical solutions, a battery rack welding tool, including:

[0005] Pedestal;

[0006] A clamping device, wherein the clamping device includes a clamping assembly and a pressing assembly arranged on the base, the clamping assembly is used to fix the battery rack, and the pressing assembly includes a pressing piece and a first driving piece, the pressing piece is rotatably connected to the first driving piece, and has a first rotation position and a second rotation position, when the first driving piece moves longitudinally, the pressing piece can be driven to move between the first rotation position and the second rotation position, and when the pressing piece rotates to the first rotation position, the pressing piece abuts against the battery rack, and when the pressing piece rotates to the second rotation position, the pressing piece is separated from the battery rack.

[0007] In the above-mentioned battery rack welding tooling, the clamping assembly also includes a connecting structure, which includes a support base and a rotating arm. One end of the rotating arm is rotatably connected to the support base, and the other end is connected to the clamping member. When the first driving member moves longitudinally, the rotating arm drives the clamping member to move around the support base between the first rotation position and the second rotation position.

[0008] In the above-mentioned battery rack welding tooling, the clamping member is connected to the first driving member through a movable structure, and the movable structure includes a rotating shaft provided on the clamping member, and a connecting rod having one end rotatably connected to the rotating shaft and the other end connected to the output end of the first driving member. When the first driving member moves longitudinally, the connecting rod moves synchronously and drives the clamping member to move between the first rotation position and the second rotation position.

[0009] In the above-mentioned battery rack welding tool, the clamping assembly includes a first clamping part, a second clamping part and a second driving member, the second driving member is connected to the first clamping part, and drives the first clamping part to move toward or away from the second clamping part, and the first clamping part has a first moving position and a second moving position. When the first clamping part moves to the first moving position, the first clamping part and the second clamping part respectively abut against the battery rack and put the battery rack in a clamped state. When the first clamping part moves to the second moving position, the first clamping part is separated from the battery rack and puts the battery rack in a relaxed state.

[0010] In the above-mentioned battery rack welding tooling, the first clamping portion includes a first clamping surface, and the second clamping portion includes a second clamping surface and a third clamping surface that are perpendicular to each other. When the first clamping portion moves to the first moving position, the first clamping portion and the second clamping portion are combined to form a groove, and the first clamping surface, the second clamping surface and the third clamping surface are respectively abutted against the battery rack.

[0011] In the above-mentioned battery rack welding tool, there are at least two groups of clamping assemblies and pressing assemblies, which are respectively arranged at both ends of the base, and at least one group of clamping assemblies and pressing assemblies is movably connected to the base. When the clamping assemblies and the pressing assemblies move along the length direction of the base, the straight-line distance between the two groups of clamping assemblies and pressing assemblies can be adjusted.

[0012] In the above-mentioned battery rack welding tool, the base is movably connected with the clamping assembly and the pressing assembly through a sliding assembly. The sliding assembly includes a guide rail arranged along the length direction of the base, and a slider structure with one side being slidably connected to the guide rail and the other side being detachably connected to the clamping assembly and the pressing assembly. When the clamping assembly and the pressing assembly move along the length direction of the guide rail, the straight-line distance between the two groups of the clamping assemblies and the pressing assemblies can be adjusted.

[0013] In the above-mentioned battery rack welding tool, the guide rails are provided with two groups, and the slider structure includes a plurality of sliders slidably connected to the guide rails, and a sliding plate detachably provided on the sliders and detachably connected to the clamping assembly and the pressing assembly.

[0014] In the above-mentioned battery rack welding tool, it also includes a limit assembly, which includes a plurality of limit grooves provided on the sliding plate, and a plurality of limit holes provided on the base, and a limit member that can be movably inserted into the limit grooves and the corresponding limit holes, and the limit member has a locking position and an unlocking position. When the limit member is in the locking position, it is engaged with the limit groove and the limit hole, and when the limit member is in the unlocking position, the limit member is disengaged from the limit hole and / or the limit groove.

[0015] In the above-mentioned battery rack welding tool, a pre-fixing component is also provided on the base, and the pre-fixing component includes a fixing rod that moves toward or away from the battery rack, and the fixing rod is flush with the battery rack and has a third moving position and a fourth moving position. When the fixing rod moves to the third moving position, the fixing rod abuts against the battery rack, and when the fixing rod moves to the fourth moving position, the fixing rod is separated from the battery rack.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows: by designing the clamping member and the first driving member to be rotatably connected, when the first driving member moves longitudinally, the clamping member is driven to switch between the first rotation position and the second rotation position, and the clamping member is in contact with the battery rack when it is in the first rotation position, and is separated from the battery rack when it is in the second rotation position, so that the clamping member can clamp and release battery racks of different heights only by rotation, thereby simplifying the cumbersome lifting and rotating pre-operation steps in traditional tooling, and significantly improving the production efficiency and versatility of the tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a schematic structural diagram of a battery rack welding tool according to an embodiment of the present invention.

[0018] Figure 2 This is an exploded view of a battery rack welding tool according to an embodiment of the utility model.

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0020] Figure 4 This is an exploded view of the local structure of a battery rack welding tooling according to an embodiment of the utility model.

[0021] Figure 5 This is a schematic diagram of a battery rack placed on a tooling according to an embodiment of the utility model.

[0022] In all the drawings, the same reference numerals represent the same technical features, specifically: 100, base; 110, rotating platform; 200, clamping assembly; 210, first clamping portion; 211, first clamping surface; 220, second clamping portion; 221, second clamping surface; 222, third clamping surface; 230, second driving member; 300, pressing assembly; 310, pressing member; 320, first driving member; 330, connecting structure; 331, supporting seat; 332, third supporting seat; 333, third supporting seat; 334, third supporting seat; 335, third supporting seat; 336, third supporting seat; 337, third supporting seat; 338, third supporting seat; 339, third supporting seat; 340, third supporting seat; 341, third supporting seat; 342, third supporting seat; 343, third supporting seat; 344, third supporting seat; 345, third supporting seat; 346, third supporting seat; 347, third supporting seat; 348, third supporting seat; 349, third supporting seat; 350, third supporting seat; 351, third supporting seat; 352, third supporting seat; 353, third supporting seat; 354, third supporting seat; 355, third supporting seat; 356, third supporting seat 2. Rotating arm; 340. Movable structure; 341. Rotating shaft; 342. Connecting rod; 400. Sliding assembly; 410. Guide rail; 420. Sliding block structure; 421. Sliding block; 422. Sliding plate; 500. Limiting assembly; 510. Limiting groove; 520. Limiting hole; 530. Limiting member; 600. Pre-fixing assembly; 610. Fixing rod; 620. Fixing seat; 630. Connecting rod structure; 640. Handle; 700. Rubber block; 800. Battery rack. DETAILED DESCRIPTION

[0023] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0024] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] like Figures 1 to 5 As shown, a battery rack welding tool includes a base 100, a clamping assembly 200, a pressing assembly 300, a sliding assembly 400, a limiting assembly 500, a pre-fixing assembly 600 and a rubber block 700.

[0026] like Figures 1 to 5 As shown, a battery rack welding tool comprises:

[0027] Base 100;

[0028] The clamping device includes a clamping assembly 200 and a pressing assembly 300 disposed on the base 100. The clamping assembly 200 is used to fix the battery rack 800. The pressing assembly 300 includes a pressing member 310 and a first driving member 320. The pressing member 310 is rotatably connected to the first driving member 320 and has a first rotation position and a second rotation position. When the first driving member 320 moves longitudinally, the pressing member 310 can be driven to move between the first rotation position and the second rotation position. When the pressing member 310 rotates to the first rotation position, the pressing member 310 abuts against the battery rack 800. When the pressing member 310 rotates to the second rotation position, the pressing member 310 is separated from the battery rack 800. The pressing member 310 can realize the pressing and releasing of the battery racks 800 of different heights only by rotating, thereby simplifying the cumbersome lifting and rotating pre-operation steps in the traditional tooling, and significantly improving the production efficiency and the versatility of the tooling.

[0029] like Figures 1 to 5 As shown, in this embodiment, the base 100 is in the shape of a rectangular long plate, a rotating platform 110 is provided at the bottom thereof, and a clamping device is provided on the side of the base 100 away from the rotating platform 110 to fix the battery rack 800 so that the battery rack 800 can be welded.

[0030] In this embodiment, the clamping device includes a clamping assembly 200 and a pressing assembly 300 provided on the base 100. The clamping assembly 200 and the pressing assembly 300 are arranged adjacent to each other. The clamping assembly 200 and the pressing assembly 300 cooperate to form a multi-sided clamp on the battery rack 800 to ensure the stability of the battery rack 800 during welding.

[0031] In this embodiment, the clamping assembly 200 includes a first clamping portion 210, a second clamping portion 220 and a second driving member 230. The second driving member 230 is connected to the first clamping portion 210 and drives the first clamping portion 210 to move toward or away from the second clamping portion 220. The first clamping portion 210 has a first moving position and a second moving position. When the first clamping portion 210 moves to the first moving position, the first clamping portion 210 and the second clamping portion 220 respectively abut against the battery rack 800 and put the battery rack 800 in a clamped state. When the first clamping portion 210 moves to the second moving position, the first clamping portion 210 is separated from the battery rack 800 and puts the battery rack 800 in a relaxed state. Through the cooperation of the first clamping portion 210 and the second clamping portion 220, the battery rack 800 of different widths can be fixed and loosened. On the one hand, the stability of the battery rack 800 during the welding process is ensured and the displacement during the welding process is reduced. On the other hand, it can facilitate the removal of the battery rack 800 after welding.

[0032] In this embodiment, the first clamping portion 210 and the second clamping portion 220 are arranged opposite to each other, and the first clamping portion 210 is in the shape of a rectangular plate, which includes a first clamping surface 211, and the second clamping portion 220 is L-shaped, which includes a second clamping surface 221 and a third clamping surface 222 that are perpendicular to each other. When the first clamping portion 210 moves to the first moving position, the first clamping portion 210 and the second clamping portion 220 are combined to form a groove for placing the battery rack 800, and the first clamping surface 211, the second clamping surface 221 and the third clamping surface 222 are respectively abutted against the battery rack 800, thereby achieving close contact between the clamping assembly 200 and the battery rack 800 on multiple sides, further ensuring the stability of the fixation of the battery rack 800, and improving the positioning accuracy of the welding.

[0033] In this embodiment, the first driving member 320 is a driving cylinder or a driving motor, preferably, a driving cylinder.

[0034] To prevent the battery rack 800 from moving longitudinally during the welding process, in the present embodiment, a clamping assembly 300 is provided to cooperate with the clamping assembly 200. The clamping assembly 300 includes a clamping member 310 and a first driving member 320. The clamping member 310 is rotatably connected to the first driving member 320 and has a first rotation position and a second rotation position. When the first driving member 320 moves longitudinally, the clamping member 310 can be driven to move between the first rotation position and the second rotation position to limit the longitudinal movement of the battery rack 800, so that the battery rack 800 can be firmly fixed in the groove. While ensuring the stability of the battery rack 800, the clamping step is effectively simplified, thereby improving the efficiency of fixing the battery rack 800.

[0035] In this embodiment, the clamping assembly 300 further includes a connection structure 330 as a rotation fulcrum of the clamping member 310. The connection structure 330 includes a support seat 331 and a rotating arm 332. One end of the rotating arm 332 is rotatably connected to the support seat 331, and the other end is connected to the clamping member 310. When the first driving member 320 moves longitudinally, the rotating arm 332 drives the clamping member 310 to move around the support seat 331 between the first rotation position and the second rotation position. This ensures that the clamping member 310 can smoothly rotate between the first rotation position and the second rotation position. The design of the connection structure 330 can realize self-locking of the clamping member 310 after rotation, further ensuring the stability of the operation of the clamping member 310.

[0036] Preferably, in this embodiment, the support seat 331 is detachably disposed on the first driving member 320 and extends in a direction away from the first driving member 320 , so that the structure of the pressing assembly 300 is more compact.

[0037] In this embodiment, the first driving member 320 is a driving cylinder or a driving motor, preferably, a driving cylinder.

[0038] In this embodiment, the pressing member 310 is connected to the first driving member 320 through a movable structure 340, and the movable structure 340 includes a rotating shaft 341 provided on the pressing member 310, and a connecting rod 342 having one end rotatably connected to the rotating shaft 341 and the other end connected to the output end of the first driving member 320. When the first driving member 320 moves longitudinally, the connecting rod 342 moves synchronously and drives the pressing member 310 to move between the first rotation position and the second rotation position. Through the cooperation of the rotating shaft 341 and the connecting rod 342, the first driving member 320 will not interfere with the rotation of the pressing member 310 when it moves longitudinally, thereby ensuring the effectiveness of the rotation of the pressing member 310.

[0039] In order to support and fix the battery racks 800 of different lengths, in the present embodiment, at least two groups of the clamping assembly 200 and the pressing assembly 300 are provided and are respectively arranged at both ends of the base 100, and at least one group of the clamping assembly 200 and the pressing assembly 300 is movably connected to the base 100. When the clamping assembly 200 and the pressing assembly 300 move along the length of the base 100, the straight-line distance between the two groups of the clamping assembly 200 and the pressing assembly 300 can be adjusted, so that the tooling can adapt to battery racks 800 of different lengths, thereby effectively enhancing the versatility of the tooling.

[0040] Furthermore, in this embodiment, the base 100 is movably connected with the clamping assembly 200 and the pressing assembly 300 through the sliding assembly 400, and the sliding assembly 400 includes a guide rail 410 arranged along the length direction of the base 100, and a slider structure 420 which is slidably connected to the guide rail 410 on one side and detachably connected to the clamping assembly 200 and the pressing assembly 300 on the other side. When the clamping assembly 200 and the pressing assembly 300 move along the length direction of the guide rail 410, the linear distance between the two groups of clamping assemblies 200 and the pressing assembly 300 can be adjusted. The design of the sliding assembly 400 simplifies the adjustment process of the tooling and improves the rapid adaptability of the tooling between different battery rack 800 sizes.

[0041] In this embodiment, the guide rail 410 is provided with two groups, and the slider structure 420 includes a plurality of sliders 421 slidably connected to the guide rail 410, and a sliding plate 422 detachably provided on the sliders 421 and detachably connected to the clamping assembly 200 and the pressing assembly 300. The user can achieve adjustment by manually pushing the sliders 421, further improving the convenience of tooling adjustment.

[0042] In order to fix the sliding assembly 400 after the tooling is adjusted, in the present embodiment, it includes a limit assembly 500, which includes a plurality of limit grooves 510 provided on the sliding plate 422 and arranged along the movement direction of the sliding plate 422, and a plurality of limit holes 520 provided on the base 100 and arranged along the length direction of the base 100, and a limit member 530 movably inserted into the limit grooves 510 and the corresponding limit holes 520, and the limit member 530 has a locking position and an unlocking position. When the limit member 530 is in the locking position, it is engaged with the limit groove 510 and the limit hole 520, and when the limit member 530 is in the unlocking position, the limit member 530 is disengaged from the limit hole 520 and / or the limit groove 510. Through the design of the limiting groove 510 and the limiting hole 520 and the cooperation with the limiting member 530, the locking and unlocking functions of the sliding assembly 400 are realized, ensuring the stability of the position of the clamping assembly 200 and the pressing assembly 300 during the welding process.

[0043] In this embodiment, the battery rack 800 includes at least four brackets connected end to end in a rectangular arrangement.

[0044] In order to achieve stable support for the battery rack 800 and the bracket, in this embodiment, each group of clamping assemblies 200 and pressing assemblies 300 is composed of four clamping assemblies 200 or four pressing assemblies 300 to achieve multi-point support for multiple support frames, effectively improving the bearing capacity of the clamping device and further ensuring the stability of the welding process of the battery rack 800.

[0045] It should be noted that the specific number of each group of clamping assemblies 200 and pressing assemblies 300 can be arranged according to actual usage requirements.

[0046] To prevent the battery rack 800 from shifting during the clamping process, in the present embodiment, a pre-fixing assembly 600 is further provided on the base 100, and the pre-fixing assembly 600 includes a fixing rod 610 that moves toward or away from the battery rack 800, and the fixing rod 610 is flush with the battery rack 800, and has a third moving position and a fourth moving position. When the fixing rod 610 moves to the third moving position, the fixing rod 610 abuts against the battery rack 800 to achieve preliminary positioning of the battery rack 800, reducing position adjustment during the clamping process, thereby improving the accuracy and stability of the battery rack 800 when clamping. When the fixing rod 610 moves to the fourth moving position, the fixing rod 610 is separated from the battery rack 800 to ensure that the battery rack 800 can be smoothly removed after welding.

[0047] Preferably, in this embodiment, the pre-fixing assembly 600 includes a fixing seat 620 adjacent to the clamping assembly 200 and detachably connected thereto, a fixing rod 610 movably disposed on the fixing seat 620, a connecting rod structure 630 rotatably connected to the fixing seat 620 at one end and connected to the fixing rod 610 at the other end, and a handle 640 connected to the connecting rod structure 630. When the user pushes the handle 640, the fixing rod 610 can be driven to move between the third moving position and the fourth moving position.

[0048] In order to avoid damage to the surface of the battery rack 800, preferably, in this embodiment, the first clamping portion 210, the second clamping portion 220 and the pressing member 310 are all provided with a rubber block 700 on the side facing the battery rack 800, so that the first clamping portion 210, the second clamping portion 220 and the pressing member 310 are all in contact with the battery rack 800 through the rubber block 700. The integrity of the battery rack 800 is effectively guaranteed.

[0049] It should be noted that in the present utility model, descriptions such as "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. The terms "connected", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integral whole; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0050] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0051] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A battery rack welding tool, characterized in that: include: Pedestal; A clamping device, wherein the clamping device includes a clamping assembly and a pressing assembly arranged on the base, the clamping assembly is used to fix the battery rack, and the pressing assembly includes a pressing piece and a first driving piece, the pressing piece is rotatably connected to the first driving piece, and has a first rotation position and a second rotation position, when the first driving piece moves longitudinally, the pressing piece can be driven to move between the first rotation position and the second rotation position, and when the pressing piece rotates to the first rotation position, the pressing piece abuts against the battery rack, and when the pressing piece rotates to the second rotation position, the pressing piece is separated from the battery rack.

2. A battery rack welding tool according to claim 1, characterized in that: The clamping assembly also includes a connecting structure, which includes a support base and a rotating arm. One end of the rotating arm is rotatably connected to the support base, and the other end is connected to the clamping member. When the first driving member moves longitudinally, the rotating arm drives the clamping member to move around the support base between the first rotation position and the second rotation position.

3. A battery rack welding tool according to claim 2, characterized in that: The clamping member is connected to the first driving member through a movable structure, and the movable structure includes a rotating shaft provided on the clamping member, and a connecting rod having one end rotatably connected to the rotating shaft and the other end connected to the output end of the first driving member. When the first driving member moves longitudinally, the connecting rod moves synchronously and drives the clamping member to move between the first rotation position and the second rotation position.

4. The battery rack welding tool according to claim 1, characterized in that: The clamping assembly includes a first clamping portion, a second clamping portion and a second driving member, the second driving member is connected to the first clamping portion, and drives the first clamping portion to move toward or away from the second clamping portion, and the first clamping portion has a first moving position and a second moving position. When the first clamping portion moves to the first moving position, the first clamping portion and the second clamping portion respectively abut against the battery rack and put the battery rack in a clamped state. When the first clamping portion moves to the second moving position, the first clamping portion is separated from the battery rack and puts the battery rack in a relaxed state.

5. A battery rack welding tool according to claim 4, characterized in that: The first clamping portion includes a first clamping surface, and the second clamping portion includes a second clamping surface and a third clamping surface that are perpendicular to each other. When the first clamping portion moves to the first moving position, the first clamping portion and the second clamping portion are combined to form a groove, and the first clamping surface, the second clamping surface and the third clamping surface are respectively abutted against the battery rack.

6. The battery rack welding tool according to claim 1, characterized in that: The clamping assembly and the pressing assembly are provided with at least two groups and are respectively arranged at both ends of the base, and at least one group of the clamping assembly and the pressing assembly is movably connected to the base. When the clamping assembly and the pressing assembly move along the length direction of the base, the straight-line distance between the two groups of the clamping assembly and the pressing assembly can be adjusted.

7. A battery rack welding tool according to claim 6, characterized in that: The base is movably connected to the clamping assembly and the pressing assembly via a sliding assembly. The sliding assembly includes a guide rail arranged along the length direction of the base, and a slider structure having one side slidably connected to the guide rail and the other side detachably connected to the clamping assembly and the pressing assembly. When the clamping assembly and the pressing assembly move along the length direction of the guide rail, the straight-line distance between the two groups of the clamping assemblies and the pressing assemblies can be adjusted.

8. The battery rack welding tool according to claim 7, characterized in that: The guide rails are provided with two groups, and the slider structure comprises a plurality of sliders slidably connected to the guide rails, and a sliding plate detachably provided on the sliders and detachably connected to the clamping assembly and the pressing assembly.

9. A battery rack welding tool according to claim 8, characterized in that: It also includes a limit assembly, which includes a plurality of limit grooves provided on the sliding plate, a plurality of limit holes provided on the base, and a limit piece movably inserted into the limit grooves and the corresponding limit holes, and the limit piece has a locking position and an unlocking position. When the limit piece is in the locking position, it is engaged with the limit groove and the limit hole, and when the limit piece is in the unlocking position, the limit piece is disengaged from the limit hole and / or the limit groove.

10. The battery rack welding tool according to claim 1, characterized in that: The base is also provided with a pre-fixing component, which includes a fixing rod that moves toward or away from the battery rack, the fixing rod is flush with the battery rack, and has a third moving position and a fourth moving position. When the fixing rod moves to the third moving position, the fixing rod abuts against the battery rack, and when the fixing rod moves to the fourth moving position, the fixing rod is separated from the battery rack.

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