Aluminum shell battery shell cover pre-spot-welding positioning and clamping equipment

Abstract

The utility model relates to aluminum shell battery cover pre-spot welding positioning and clamping equipment which comprises a laser mechanism, a positioning and clamping mechanism, an upper plate and a lower plate, the laser mechanism is installed on one side of the lower plate, the working end of the laser mechanism is in transmission connection with a laser head, and a containing opening used for containing a battery is formed in the upper plate. The positioning and clamping mechanism comprises a clamping translation cylinder and a clamping lifting cylinder, the clamping translation cylinder is mounted on the two sides of the bottom of the placing opening, L-shaped pressing block groups which are arranged at equal intervals are mounted at the working end of the clamping translation cylinder, and the clamping lifting cylinder is mounted at the working end of the clamping translation cylinder and is in transmission connection with the pressing block groups in the vertical direction. Existing positioning and clamping equipment is improved, and the shell and the cover plate are clamped, so that no gap exists between the cover plate and the shell during pre-spot welding, and the welding effect is guaranteed. Therefore, poor welding is reduced, the battery quality is ensured, and battery scrapping is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production, in particular to a pre-spot welding positioning and clamping device for an aluminum shell battery shell cover. Background Art

[0002] During the production process of aluminum shell batteries, after the battery cell is put into the shell, the battery cover needs to be pressed into the shell so that the shell and the surface of the cover are flush. Then a laser is used to weld the cover and the shell at intervals. This welding process is called pre-spot welding.

[0003] In the experimental line, before pre-spot welding, the cover is pressed into the shell, and the positioning mechanism positions the shell, but the shell and the cover are not clamped. During the welding process, a large gap will appear between the cover and the shell. Once light leaks, the Mylar film or the battery cell body will be burned. Burning the Mylar film will cause the shell weld to explode, and burning the battery cell body will cause the battery cell to be directly scrapped. Utility Model Content

[0004] The purpose of the utility model is to provide a pre-spot welding positioning and clamping device for an aluminum shell battery shell cover to solve the problems encountered in the above-mentioned background technology.

[0005] To achieve the above purpose, the technical solution of the utility model is as follows:

[0006] A pre-spot welding positioning and clamping device for an aluminum shell battery shell cover comprises a laser mechanism, a positioning and clamping mechanism, an upper plate and a lower plate, wherein the laser mechanism is mounted on one side of the lower plate and a laser head is connected to the working end thereof in a transmission manner, the bottom of the upper plate is fixedly connected to the lower plate via a support column, a placement opening for placing batteries is provided inside the upper plate, the positioning and clamping mechanism is mounted on the upper plate, the positioning and clamping mechanism comprises a clamping translation cylinder and a clamping lifting cylinder, the clamping translation cylinder is mounted on both sides of the bottom of the placement opening, an L-shaped pressure block group arranged at equal intervals is mounted on the working end of the clamping translation cylinder, and the clamping lifting cylinder is mounted on the working end of the clamping translation cylinder and is connected to the pressure block group in a transmission manner in the up and down directions.

[0007] In the above scheme, the clamping translation cylinder includes a first clamping translation cylinder and a second clamping translation cylinder. The first clamping translation cylinder is installed on one side of the bottom of the placement port, and the second clamping translation cylinder is installed on the other side of the bottom of the placement port. The first clamping translation cylinder and the second clamping translation cylinder are respectively connected to the pressure block group in the horizontal direction.

[0008] Further, the pressing block group is composed of multiple pressing blocks with the same structure. The pressing block group includes a first pressing block and a second pressing block. The first clamping and translating air cylinder is drivingly connected to the assembled first pressing block, and the second clamping and translating air cylinder is drivingly connected to the assembled second pressing block. The tops of the first pressing block and the second pressing block are provided with protrusions, and the overall structure is L-shaped. Clamping and lifting air cylinders are respectively installed at the bottoms of each of the first pressing block and the second pressing block.

[0009] Still further, the clamping and lifting air cylinders include a first clamping and lifting air cylinder and a second clamping and lifting air cylinder. The first clamping and lifting air cylinder is drivingly connected to the assembled first pressing block in the vertical direction, and the second clamping and lifting air cylinder is drivingly connected to the assembled second pressing block in the vertical direction.

[0010] In the above solution, the laser mechanism includes a laser transverse movement module and a laser lifting module. The laser transverse movement module is fixed on the workbench through a support frame. The workbench is located on one side of the lower plate. The laser transverse movement module is drivingly connected to the laser lifting module. The laser head is installed at the bottom of the laser lifting module, and the laser emission hole of the laser head is higher than the plane of the upper plate.

[0011] In the above solution, a battery positioning component is provided on the lower plate. The battery positioning component includes a first positioning air cylinder, a second positioning air cylinder, a first pressing plate, and a second pressing plate. The first positioning air cylinder is installed on the X-axis of the lower plate, and the second positioning air cylinder is installed on the Y-axis of the lower plate. The output end of the first positioning air cylinder is drivingly connected to the first pressing plate to limit the front and rear sides of the battery; the output end of the second positioning air cylinder is drivingly connected to the second pressing plate to limit the left and right sides of the battery; limit blocks are provided on the opposite sides of the first pressing plate and the second pressing plate.

[0012] In the above solution, a battery housing positioning component is further provided on the outer peripheral surface of the placement opening. The battery housing positioning component includes a first housing opening positioning air cylinder, a second housing opening positioning air cylinder, a third housing opening positioning air cylinder, a fourth housing opening positioning air cylinder, a first positioning block, a second positioning block, a third positioning block, and a fourth positioning block. The first housing opening positioning air cylinder, the second housing opening positioning air cylinder, the third housing opening positioning air cylinder, and the fourth housing opening positioning air cylinder are respectively installed on the top of the upper plate. The working end of the first housing opening positioning air cylinder is drivingly connected to the first positioning block to press the left side of the battery housing opening; the working end of the second housing opening positioning air cylinder is drivingly connected to the second positioning block to press the right side of the battery housing opening; the working end of the third housing opening positioning air cylinder is drivingly connected to the third positioning block to press the front side of the battery housing opening; the working end of the fourth housing opening positioning air cylinder is drivingly connected to the fourth positioning block to press the rear side of the battery housing opening.

[0013] Among them, during implementation, there are multiple first positioning blocks and second positioning blocks, and they are arranged at equal intervals. The pressing block groups on both sides are respectively arranged staggered with the first positioning blocks and the second positioning blocks.

[0014] In addition, a cover plate pressing assembly is further provided at the top of the placement opening, and the cover plate pressing assembly is used to tightly press the cover plate at the top of the battery within the housing opening. Specifically, the cover plate pressing assembly includes a translation cylinder, a connecting plate, a lifting cylinder, and a pressing strip. The output end of the translation cylinder is drivingly connected to the connecting plate in the horizontal direction, the lifting cylinder is vertically installed on the connecting plate, and the output end of the lifting cylinder is drivingly connected to the pressing strip in the vertical direction.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: By improving the existing positioning and clamping device, the present utility model clamps the housing and the cover plate, so that there is no gap between the cover plate and the housing during pre-spot welding, ensuring the welding effect. Thereby reducing welding defects, ensuring the quality of the battery, and reducing battery scrapping. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The disclosure of the present utility model will be described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present utility model. In the drawings, the same reference numerals are used to refer to the same components. Among them:

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a schematic diagram of the structure of the positioning and clamping mechanism in the present utility model;

[0019] Figure 3 is Figure 2 the front view of;

[0020] Figure 4 is a schematic diagram of the installation structure at the top of the lower plate in the present utility model;

[0021] Figure 5 is a schematic diagram of the installation structure at the bottom of the upper plate in the present utility model;

[0022] Figure 6 is a schematic diagram of the installation of the positioning block and the pressing block in the present utility model.

[0023] Reference numerals in the figure: 1 - laser mechanism; 2 - positioning and clamping mechanism; 3 - laser transverse movement module; 4 - laser lifting module; 5 - laser head; 6 - battery; 7 - cover plate; 8 - shell opening; 9 - first positioning cylinder; 10 - second positioning cylinder; 11 - first pressing plate; 12 - second pressing plate; 13 - first shell opening positioning cylinder; 14 - second shell opening positioning cylinder; 15 - third shell opening positioning cylinder; 16 - fourth shell opening positioning cylinder; 17 - first positioning block; 18 - second positioning block; 19 - third positioning block; 20 - fourth positioning block; 21 - translation cylinder; 22 - connecting plate; 23 - lifting cylinder; 24 - pressing strip; 25 - first clamping translation cylinder; 26 - second clamping translation cylinder; 27 - first pressing block; 28 - second pressing block; 29 - first clamping lifting cylinder; 30 - second clamping lifting cylinder; 31 - upper plate; 32 - lower plate; 33 - placement opening. Detailed implementation mode

[0024] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will now be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the relevant components of the present utility model.

[0025] According to the technical solution of the present utility model, without changing the essential spirit of the present utility model, those of ordinary skill in the art can propose various structural ways and implementation ways that can be mutually replaced. Therefore, the following detailed implementation modes and drawings are only exemplary descriptions of the technical solution of the present utility model, and should not be regarded as all of the present utility model or as a limitation or restriction on the technical solution of the present utility model.

[0026] The technical solution of the present utility model will be further described in detail below with reference to the drawings and embodiments.

[0027] Example 1, as Figures 1-3 shown, a pre-spot welding positioning and clamping device for an aluminum shell battery cover includes a laser mechanism 1, a positioning and clamping mechanism 2, an upper plate 31, and a lower plate 32. The upper plate 31 and the lower plate 32 are used to carry the positioning and clamping mechanism 2, and there is also a workbench for installing the laser mechanism 1, and the lower plate 32 is fixed on the workbench. It is also possible to make the area of the lower plate 32 larger and fixedly install the laser mechanism 1 on it.

[0028] Specifically, the laser mechanism 1 is installed on one side of the lower plate 32, and its working end is drivingly connected to the laser head 5. During implementation, the laser mechanism 1 includes a laser transverse movement module 3 and a laser lifting module 4. The laser transverse movement module 3 is fixed to the workbench through a support frame. The workbench is located on one side of the lower plate 32. The laser transverse movement module 3 is drivingly connected to the laser lifting module 4. The laser head 5 is installed at the bottom of the laser lifting module 4. The laser emission hole of the laser head 5 is higher than the plane of the upper plate 31, and is used to output laser on the upper plate 31 for spot welding.

[0029] The laser transverse movement module 3, the laser lifting module 4, and the entire crawler carrier accessory are all conventional components of existing machine tools, and are only two-degree-of-freedom devices. The current new devices have reached six degrees of freedom. Therefore, the related laser transverse movement module 3, laser lifting module 4, and laser head 5 are all existing conventional technologies, and their operating principles can also be fully verified and implemented by those skilled in the art, so they will not be elaborated here one by one.

[0030] The bottom of the upper plate 31 is fixedly connected to the lower plate 32 through support columns. At least four support columns are provided and installed at the outer peripheral position of the remaining transmission components, which does not affect the operation of the transmission components and can stably support the upper plate 31 and the lower plate 32. An accommodation opening 33 for placing the battery 6 is provided inside the upper plate 31. The accommodation opening 33 is a rectangular structure, and its opening size is larger than the size of the battery 6, and can accommodate the largest specification of the aluminum shell battery to be disassembled in this factory area, so as to be applicable to aluminum shell batteries of other various specifications and sizes.

[0031] The positioning and clamping mechanism 2 is installed on the upper plate 31. The positioning and clamping mechanism 2 includes a clamping translation cylinder and a clamping lifting cylinder. Among them, the clamping translation cylinder is installed on both sides of the bottom of the accommodation opening 33. The working end of the clamping translation cylinder is installed with a group of L-shaped and equally spaced pressing blocks, which can perform translational clamping on both sides of the shell opening 8 of the battery 6. The clamping lifting cylinder is installed at the working end of the clamping translation cylinder and is drivingly connected to the pressing block group in the vertical direction, and can perform downward pressing and clamping on both sides of the shell opening 8 of the battery 6.

[0032] Since the pre-spot welding is performed intermittently, and the multiple pressing blocks in the group of L-shaped and equally spaced pressing blocks are also equally spaced, it is convenient for the laser head 5 to perform spot welding at equal intervals in the gaps between the multiple pressing blocks. During implementation, the gap between the protruding plates on the upper parts of two adjacent pressing blocks can be used as the working area for performing spot welding.

[0033] Embodiment 2, as Figure 3 、 Figure 5As shown, on the basis of Embodiment 1, the clamping and translating cylinder includes a first clamping and translating cylinder 25 and a second clamping and translating cylinder 26. The first clamping and translating cylinder 25 is installed on one side of the bottom of the placement opening 33, and the second clamping and translating cylinder 26 is installed on the other side of the bottom of the placement opening 33. Both clamping and translating cylinders are fixed on the upper plate 31. The first clamping and translating cylinder 25 and the second clamping and translating cylinder 26 are respectively connected to the pressing block group in a horizontal transmission manner, and the two sides of the battery 6 are squeezed through the pressing block group.

[0034] Furthermore, the pressing block group is composed of multiple pressing blocks with the same structure, and the tails of the multiple pressing blocks are connected to the output ends of the clamping and translating cylinders in a transmission manner. Among them, the pressing block group includes a first pressing block 27 and a second pressing block 28. The first clamping and translating cylinder 25 is connected to the assembled first pressing block 27 in a transmission manner, and the second clamping and translating cylinder 26 is connected to the assembled second pressing block 28 in a transmission manner. The tops of the first pressing block 27 and the second pressing block 28 are provided with protrusions, and the overall structure is L-shaped. And clamping and lifting cylinders are respectively installed at the bottoms of each first pressing block 27 and second pressing block 28.

[0035] Among them, the clamping and lifting cylinders include a first clamping and lifting cylinder 29 and a second clamping and lifting cylinder 30. The first clamping and lifting cylinder 29 is connected to the assembled first pressing block 27 in an up-and-down transmission manner, and the second clamping and lifting cylinder 30 is connected to the assembled second pressing block 28 in an up-and-down transmission manner.

[0036] During implementation, the pressing block group is composed of multiple pressing blocks with the same structure. Multiple pressing blocks can be assembled onto the same pushing plate, which is convenient for the overall pushing of the clamping and translating cylinder. And then slots are opened on the pushing plate to enable the clamping and lifting cylinders to control the pressing block group as a whole, so as to facilitate the overall pulling or pushing of the pressing block group by the clamping and lifting cylinders. When working, with the help of the two L-shaped pressing block groups, the two sides of the shell opening 8 of the battery 6 are clamped. Among them, the two clamping and translating cylinders clamp the left and right side surfaces of the shell opening 8 of the battery 6, and the two clamping and lifting cylinders clamp the upper and lower left and right surfaces of the shell opening 8 of the battery 6.

[0037] Embodiment 3, as Figure 3 、 Figure 4 shown, on the basis of Embodiment 1, a battery positioning component is provided on the lower plate 32, which is mainly used for the initial positioning of the battery 6 to prepare for the clamping of the shell opening 8 later.

[0038] The battery positioning assembly includes a first positioning cylinder 9, a second positioning cylinder 10, a first pressing plate 11, and a second pressing plate 12. The first positioning cylinder 9 is installed on the X-axis of the lower plate 32, and the second positioning cylinder 10 is installed on the Y-axis of the lower plate 32. The output end of the first positioning cylinder 9 is connected to the first pressing plate 11 in a transmission manner to limit the front and rear sides of the battery 6. The output end of the second positioning cylinder 10 is connected to the second pressing plate 12 in a transmission manner to limit the left and right sides of the battery 6. In order to facilitate the separation, limit blocks are provided on the opposite sides of the first pressing plate 11 and the second pressing plate 12.

[0039] After the battery 6 is placed in the placement opening 33, the first positioning cylinder 9 pushes the battery 6 to the working position on the X axis, and the second positioning cylinder 10 pushes the battery 6 to the working position on the Y axis, and positions the position with the help of the limit block.

[0040] Embodiment 4, as Figure 2 , Figure 3 As shown, based on Example 1, please refer to Figure 2 , Figure 4 The outer peripheral surface of the placement opening 33 is also provided with a battery shell positioning component, which is mainly used to initially position the outer shell of the battery 6 around to prepare for the subsequent clamping of the shell opening 8.

[0041] The battery shell positioning assembly includes a first shell opening positioning cylinder 13, a second shell opening positioning cylinder 14, a third shell opening positioning cylinder 15, a fourth shell opening positioning cylinder 16, a first positioning block 17, a second positioning block 18, a third positioning block 19, and a fourth positioning block 20. The first shell opening positioning cylinder 13, the second shell opening positioning cylinder 14, the third shell opening positioning cylinder 15, and the fourth shell opening positioning cylinder 16 are respectively installed on the top of the upper plate 31, and the working end of the first shell opening positioning cylinder 13 is connected to the first positioning block 17 for pressing the left side of the shell opening 8 of the battery 6; the working end of the second shell opening positioning cylinder 14 is connected to the second positioning block 18 for pressing the right side of the shell opening 8 of the battery 6; the working end of the third shell opening positioning cylinder 15 is connected to the third positioning block 19 for pressing the front side of the shell opening 8 of the battery 6; the working end of the fourth shell opening positioning cylinder 16 is connected to the fourth positioning block 20 for pressing the rear side of the shell opening 8 of the battery 6.

[0042] As a preferred solution, please refer to Figure 6 There are multiple first positioning blocks 17 and second positioning blocks 18, and they are arranged at equal intervals. The pressure block groups on both sides are staggered with the first positioning blocks 17 and the second positioning blocks 18 respectively.

[0043] Embodiment 5, as Figure 2 , Figure 3As shown in the figure, on the basis of Embodiment 1, a cover plate pressing assembly is further provided at the top of the placing opening 33. The cover plate pressing assembly is used to tightly press the cover plate 7 on the top of the battery 6 into the housing opening 8.

[0044] During implementation, the cover plate pressing assembly includes a translation cylinder 21, a connecting plate 22, a lifting cylinder 23, and a pressing strip 24. The translation cylinder 21 is installed on the upper plate 31, and the output end of the translation cylinder 21 is drivingly connected to the connecting plate 22 in the horizontal direction. The lifting cylinder 23 is vertically installed on the connecting plate 22, and the output end of the lifting cylinder 23 is drivingly connected to the pressing strip 24 in the vertical direction.

[0045] Driven by the translation cylinder 21, the connecting plate 22 drives the pressing strip 24 to move forward. And driven by the lifting cylinder 23, the pressing strip 24 moves downward to press on the cover plate 6 of the battery 6, tightly pressing the cover plate 6 into the housing opening 8.

[0046] In summary of the above embodiments, combining the various components of the entire device, the specific implementation steps are described coherently here:

[0047] The employee places the battery 6 into the positioning and clamping mechanism 2. The working ends of the first positioning cylinder 9 and the second positioning cylinder 10 extend, driving the first pressing plate 11 and the second pressing plate 12 to press on the battery 6 to position the battery 6.

[0048] The working ends of the first housing opening positioning cylinder 13, the second housing opening positioning cylinder 14, the third housing opening positioning cylinder 15, and the fourth housing opening positioning cylinder 16 extend, driving the first positioning block 17, the second positioning block 18, the third positioning block 19, and the fourth positioning block 20 to position the housing opening 8.

[0049] The working end of the translation cylinder 21 extends, driving the connecting plate 22 to move. The working end of the lifting cylinder 23 retracts, driving the pressing strip 24 to move downward, pressing the cover plate 7 into the housing opening 8.

[0050] The working ends of the first clamping translation cylinder 25 and the second clamping translation cylinder 26 extend, driving the first pressing block 27 and the second pressing block 28 to move to press on the housing opening 8. The working ends of the first clamping lifting cylinder 29 and the second clamping lifting cylinder 30 retract, driving the first pressing block 27 and the second pressing block 28 to move downward to press on the cover plate 7. The first pressing block 27 and the second pressing block 28 clamp the housing opening 8 and the cover plate 7.

[0051] The working ends of the first housing opening positioning cylinder 13, the second housing opening positioning cylinder 14, the third housing opening positioning cylinder 15, and the fourth housing opening positioning cylinder 16 retract, driving the first positioning block 17, the second positioning block 18, the third positioning block 19, and the fourth positioning block 20 to return to their original positions.

[0052] The laser lateral movement module 3 moves to the right, and the laser lifting module 4 moves downward, driving the laser head 5 to move above the battery 6, and spot welding the shell opening 8 and the cover plate 7.

[0053] After the spot welding is completed, the laser head 5 returns to the original position. The working ends of the first clamping lifting cylinder 29 and the second clamping lifting cylinder 30 extend, and the working ends of the first clamping translation cylinder 25 and the second clamping translation cylinder 26 retract, driving the first pressing block 27 and the second pressing block 28 back to the original position. The working ends of the first positioning cylinder 9 and the second positioning cylinder 10 retract, driving the first pressing plate 11 and the second pressing plate 12 back to the original position, and the employee takes away the battery 6 to complete the entire action process of pre-spot welding.

[0054] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. These unpublicized elements all belong to the prior art that can be known to those skilled in the art.

[0055] The specific embodiments described above further elaborate on the purpose, technical solution and beneficial effects of the present invention. It should be understood that the above description is only the specific embodiments of the present invention and is not used to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A pre-spot welding positioning and clamping device for an aluminum battery shell cover, characterized in that: The invention comprises a laser mechanism (1), a positioning and clamping mechanism (2), an upper plate (31), and a lower plate (32). The laser mechanism (1) is installed on one side of the lower plate (32) and a laser head (5) is connected to the working end thereof in a transmission manner. The bottom of the upper plate (31) is fixedly connected to the lower plate (32) via a supporting column. The invention is characterized in that: The upper plate (31) is provided with a placement opening (33) for placing the battery (6). The positioning clamping mechanism (2) is mounted on the upper plate (31). The positioning clamping mechanism (2) comprises a clamping translation cylinder and a clamping lifting cylinder. The clamping translation cylinder is mounted on both sides of the bottom of the placement opening (33). An L-shaped pressure block group arranged at equal intervals is mounted on the working end of the clamping translation cylinder. The clamping lifting cylinder is mounted on the working end of the clamping translation cylinder and is transmission-connected to the pressure block group in the up and down directions.

2. The aluminum battery shell cover pre-spot welding positioning clamping device according to claim 1, characterized in that: The clamping translation cylinder comprises a first clamping translation cylinder (25) and a second clamping translation cylinder (26); the first clamping translation cylinder (25) is installed on one side of the bottom of the placement opening (33), and the second clamping translation cylinder (26) is installed on the other side of the bottom of the placement opening (33); the first clamping translation cylinder (25) and the second clamping translation cylinder (26) are respectively connected to the pressing block group in a horizontal direction.

3. The aluminum battery shell cover pre-spot welding positioning clamping device according to claim 2, characterized in that: The pressure block group is composed of a plurality of pressure blocks with the same structure, and the pressure block group includes a first pressure block (27) and a second pressure block (28). The first clamping translation cylinder (25) is connected to the first pressure block (27) after the combination is assembled, and the second clamping translation cylinder (26) is connected to the second pressure block (28) after the combination is assembled. The tops of the first pressure block (27) and the second pressure block (28) are provided with protrusions, and the overall structure is L-shaped. The bottom of each of the first pressure block (27) and the second pressure block (28) is respectively installed with a clamping lifting cylinder.

4. The aluminum battery shell cover pre-spot welding positioning clamping device according to claim 3, characterized in that: The clamping lifting cylinder comprises a first clamping lifting cylinder (29) and a second clamping lifting cylinder (30); the first clamping lifting cylinder (29) is connected to the first pressure block (27) after combination in a transmission manner in the up-down direction; and the second clamping lifting cylinder (30) is connected to the second pressure block (28) after combination in a transmission manner in the up-down direction.

5. The aluminum battery shell cover pre-spot welding positioning clamping device according to claim 1, characterized in that: The laser mechanism (1) comprises a laser transverse movement module (3) and a laser lifting module (4); the laser transverse movement module (3) is fixed on a workbench via a support frame; the workbench is located on one side of a lower plate (32); the laser transverse movement module (3) is transmission-connected to the laser lifting module (4); a laser head (5) is mounted at the bottom of the laser lifting module (4); and a laser emission hole of the laser head (5) is higher than the plane of the upper plate (31).

6. The aluminum battery shell cover pre-spot welding positioning clamping device according to claim 1, characterized in that: The lower plate (32) is provided with a battery positioning assembly, which includes two positioning cylinders and two pressure plates. The positioning cylinders are in driving connection with the pressure plates to limit the front and rear sides and the front and rear sides of the battery (6). Limit blocks are provided on the opposite sides of the two pressure plates.

7. The aluminum battery shell cover pre-spot welding positioning clamping device according to claim 1, characterized in that: The outer peripheral surface of the placement opening (33) is also provided with a battery shell positioning assembly, which includes four shell opening positioning cylinders and four positioning blocks; the shell opening positioning cylinders are installed on the top of the upper plate (31), and the working ends of the shell opening positioning cylinders are transmission-connected with the positioning blocks to press the left side, right side, front side and rear side of the shell opening (8) of the battery (6).

8. The aluminum battery shell cover pre-spot welding positioning clamping device according to claim 7, characterized in that: The left and right positioning blocks are provided in plurality and are arranged at equal intervals, and the pressing block groups on both sides are arranged alternately with the positioning blocks.

9. The aluminum battery shell cover pre-spot welding positioning clamping device according to claim 1, characterized in that: A cover plate pressing assembly is also provided at the top of the placement opening (33), and the cover plate pressing assembly is used to tightly press the cover plate (7) at the top of the battery (6) into the shell opening (8).

10. The aluminum battery shell cover pre-spot welding positioning clamping device according to claim 9, characterized in that: The cover plate pressing assembly comprises a translation cylinder (21), a connecting plate (22), a lifting cylinder (23) and a pressure strip (24); the output end of the translation cylinder (21) is transmission-connected with the connecting plate (22) in a horizontal direction; the lifting cylinder (23) is vertically mounted on the connecting plate (22); and the output end of the lifting cylinder (23) is transmission-connected with the pressure strip (24) in a vertical direction.

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