A square cell welding top cover welding device

Abstract

The application discloses a square electric core welding top cover welding device, which comprises a material receiving mechanism, at least one welding mechanism, a detection mechanism and a material buffer mechanism. The material receiving mechanism is configured to store materials. The welding device is connected with the material receiving mechanism and is configured to sequentially perform negative top cover welding and positive top cover welding on the materials. The detection mechanism is configured to perform burr rolling, burr detection and short circuit test on the welded materials. The material buffer mechanism comprises a buffer circulation line. The buffer circulation line is arranged along the length direction of the welding device and is spaced from the welding device. The buffer circulation line has a feeding end and a discharging end. The feeding end of the buffer circulation line is connected with the discharging end of the welding device, and the discharging end can be connected with the feeding end of the detection mechanism. The application can solve the problem of lacking integrated equipment capable of completing continuous automatic welding and post-welding detection.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of square cell processing, in particular to a square cell welding top cover welding device. BACKGROUND

[0002] Square cells are widely used in new energy vehicles and energy storage systems due to high energy density and good structural stability. By arranging the positive and negative terminals of the cell at both ends of the length direction of the shell, it is beneficial for the series connection and spatial arrangement of the battery module, and it is one of the mainstream cell structures at present.

[0003] In the cell manufacturing process, the two end poles need to be sealed and welded, and the weld quality needs to be detected. However, the welding and detection processes in the prior art are separate, which not only cannot realize continuous automatic welding of the positive and negative poles, resulting in interruption of production rhythm and low efficiency, but also cannot complete automatic detection after the positive and negative poles are welded, which needs to rely on manual auxiliary transfer or visual inspection, increasing the risk of missed judgment and labor cost.

[0004] Therefore, there is an urgent need for a square cell welding top cover welding device to solve the problem of low production efficiency of square cell welding top cover due to the lack of integrated equipment that can simultaneously complete continuous automatic welding and post-welding detection in the prior art. SUMMARY

[0005] The purpose of the present application is to overcome the above technical deficiencies and provide a square cell welding top cover welding device to solve the technical problem of low production efficiency of square cell welding top cover due to the lack of integrated equipment that can simultaneously complete continuous automatic welding and post-welding detection in the prior art.

[0006] To achieve the above technical purpose, the present application adopts the following technical scheme: The present application provides a square cell welding top cover welding device, comprising: A material receiving mechanism configured to store materials; At least one welding mechanism connected to the material receiving mechanism and configured to sequentially weld negative top covers and positive top covers on the materials; A detection mechanism configured to roll, detect and test the short circuit of the welded materials; and A material buffering mechanism including a buffering circulation line arranged along the length direction of the welding mechanism and spaced apart from the welding mechanism, the buffering circulation line having an inlet end and an outlet end, and the inlet end of the buffering circulation line being connected to the outlet end of the welding mechanism, and the outlet end being connected to the inlet end of the detection mechanism.

[0007] In some embodiments, the welding mechanism comprises a first transfer assembly, at least one first welding assembly, a first turnover assembly, at least one second welding assembly, and a second transfer assembly arranged in sequence, the first transfer assembly is configured to transfer the material from the incoming mechanism to the first welding assembly, the first welding assembly is configured for negative top cover welding of the material, the first turnover assembly is configured to turn over the material and transfer the material to the second welding assembly, the second welding assembly is configured for positive top cover welding of the material, and the second transfer assembly is configured to transfer the material to the buffer circulation line.

[0008] In some embodiments, the first transfer assembly or the second transfer assembly can respectively drive at least two materials to approach or move away from each other, so as to cooperate with the first welding assembly or the second welding assembly to adjust the distance between the adjacent two materials.

[0009] In some embodiments, the welding mechanism further comprises a first detection assembly and a second detection assembly, the first detection assembly is movably connected to the first turnover assembly and can slide along the length direction of the first turnover assembly, and is configured to detect the negative top cover weld, and the second detection assembly is movably connected to the second transfer assembly and can slide along the length direction of the second transfer assembly, and is configured to detect the positive top cover weld.

[0010] In some embodiments, the buffer circulation line has a first discharge end and a second discharge end, the first discharge end of the buffer circulation line is connected to the feeding end of the detection mechanism, and is configured to deliver the qualified material after welding to the detection mechanism, and the second discharge end of the buffer circulation line is configured to recycle the unqualified material after welding.

[0011] In some embodiments, the detection mechanism comprises a first conveying line, a second conveying line, a rolling edge assembly, a pre-clamping assembly, a short circuit test assembly, a code carving assembly, and a third transfer assembly, the second conveying line is arranged in parallel with the first conveying line and is configured to convey the material, the rolling edge assembly is arranged on the material conveying path of the first conveying line and is configured to roll the edges of the material, the pre-clamping assembly, the short circuit test assembly, and the code carving assembly are arranged in sequence along the material conveying direction of the second conveying line, the pre-clamping assembly is configured to apply a pre-clamping force to the material, the short circuit test assembly is configured for short circuit test of the material, the code carving assembly is configured to carve a two-dimensional code on the surface of the material, and the third transfer assembly is configured to transfer the material from the first conveying line to the second conveying line.

[0012] In some embodiments, the detection mechanism further comprises a third detection assembly, the third detection assembly is arranged in parallel with the rolling edge assembly on the material conveying path of the first conveying line, and is configured to detect the edge quality of the material.

[0013] In some embodiments, the square battery cell top cover welding device further comprises a temporary storage device, the temporary storage device comprises a temporary storage assembly and a fourth transfer assembly, the temporary storage assembly is arranged between the first discharge end of the buffer circulation line and the first conveying line and communicates with both the first discharge end of the buffer circulation line and the first conveying line, and the fourth transfer assembly is arranged in parallel with the first conveying line and is configured to overturn the material from a vertical state to a horizontal state and then transfer the material to the first conveying line.

[0014] In some embodiments, the material conveying path of the second conveying line is circular.

[0015] In some embodiments, the number of welding mechanisms in the square battery cell top cover welding device is two, the two welding mechanisms are arranged side by side, and the discharge ends of the two welding mechanisms communicate with the discharge end of the incoming material mechanism and the discharge end of the buffer circulation line.

[0016] Compared with the prior art, the square battery cell top cover welding device provided by the present application has the following beneficial effects: at least one welding mechanism communicates with the incoming material mechanism and is configured to sequentially perform negative top cover welding and positive top cover welding on the material; the detection mechanism is arranged in parallel with the welding mechanism and is configured to perform roll-off edge, edge detection, and short circuit testing on the welded material; the buffer circulation line is arranged along the length direction of the welding mechanism and is arranged in parallel with the welding mechanism; the buffer circulation line has a discharge end and a discharge end, and the discharge end of the buffer circulation line communicates with the discharge end of the welding mechanism and the discharge end can communicate with the discharge end of the detection mechanism. Compared with the prior art, by sequentially arranging the incoming material mechanism, the welding mechanism, and the detection mechanism, the automatic production and transfer of the square battery cell material can be realized, and the buffer circulation line is arranged between the welding mechanism and the detection mechanism, which can realize the transfer and buffering of qualified materials from the welding mechanism to the detection mechanism, and can realize the screening of unqualified materials, avoiding the flow of unqualified materials into the detection mechanism, realizing the automatic production of the square battery cell top cover welding process, and solving the technical problem of low production efficiency of the square battery cell top cover welding process caused by the lack of integrated equipment capable of simultaneously completing continuous automatic welding and post-welding detection in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 1 is a schematic diagram of a square battery cell top cover welding device according to an embodiment of the present application; Figure 2 FIG. 2 is a schematic diagram of a welding mechanism according to an embodiment of the present application; Figure 3 FIG. 3 is a schematic diagram of another view of the welding mechanism according to an embodiment of the present application; Figure 4 FIG. 4 is a schematic diagram of a square battery cell top cover welding device according to an embodiment of the present application;Figure 2 Partial structure schematic view at middle A; Figure 5 is along Figure 2 Partial structure schematic view at middle B; Figure 6 is along Figure 2 Partial structure schematic view at middle C; Figure 7 is along Figure 2 Partial structure schematic view at middle D; Figure 8 is along Figure 3 Partial structure schematic view at middle E; Figure 9 is a partial structure schematic view of the battery cell part provided by the first embodiment of the application; Figure 10 is a partial structure schematic view of the welding part provided by the first embodiment of the application; Figure 11 is a partial structure schematic view of the protection part provided by the first embodiment of the application; Figure 12 is a partial structure schematic view of the battery cell part from another angle provided by the first embodiment of the application; Figure 13 is a partial structure schematic view of the battery cell part from a side view provided by the first embodiment of the application; Figure 14 is a schematic view of the detection mechanism provided by an embodiment of the application; Figure 15 is a schematic view of the third transfer assembly connected with the first conveying line, the edge rolling assembly and the third detection assembly provided by an embodiment of the application; Figure 16 is a schematic view of the second turnover component provided by an embodiment of the application; Figure 17 is a schematic view of the first conveying line connected with the edge rolling assembly provided by an embodiment of the application; Figure 18 is a schematic view of the third detection assembly provided by an embodiment of the application; Figure 19 is a schematic view of the third transfer assembly connected with the first conveying line, the second conveying line, the pre-clamping assembly, the short circuit test assembly and the coding assembly provided by an embodiment of the application; Figure 20 is a schematic view of the third transfer assembly connected with the first conveying line, the second conveying line, the pre-clamping assembly, the short circuit test assembly and the coding assembly from another view provided by an embodiment of the application; Figure 21 is a schematic view of the third transfer assembly connected with the first conveying line provided by an embodiment of the application; Figure 22is a schematic view of a first flipping component provided by an embodiment of the present application; Figure 23 is a schematic view of a second conveying line connected with a pre-clamping assembly, a short-circuit testing assembly and a coding assembly provided by an embodiment of the present application; Figure 24 is another schematic view of the second conveying line connected with the pre-clamping assembly, the short-circuit testing assembly and the coding assembly provided by an embodiment of the present application.

[0018] Legend: First welding assembly 100; First detection assembly 200; First transfer assembly 300; Variable distance device 400; Cell 500; Welding part 1; Follow-up assembly 11; First guide rail piece 111; Second guide rail piece 112; Third guide rail piece 113; Fourth mounting plate 114; Fifth mounting plate 115; Welding assembly 12; Laser welder 121; Third visual piece 122; Cell part 2; Clamping assembly 21; Seat plate 211; Slide rail 2111; Third drive component 2112; Sensor 2113; Second clamping mechanism 212; First mounting plate 2121; Second mounting plate 2122; First clamping component 2123; Third clamping mechanism 213; Third mounting plate 2131; Two second clamping components 2132; Second drive component 21321; Fixed clamping block 21322; Movable clamping block 21323; Rotation assembly 22; Guard 3; Gantry 31; Guard piece 32; Guard mounting seat 33; Fourth drive component 34; Distance measuring piece 35; First clamping mechanism 4; First bottom plate 41; Second bottom plate 42; Third bottom plate 43; Clamping structure 44; Third clamping component 441; Fourth clamping component 442; Fifth drive component 443; Visual assembly 5; First visual piece 51; Second visual piece 52; First drive component 6; Guide rail 7; Clamping jaw mechanism 71; Mechanical clamping jaw 72; Fourth clamping mechanism 8; Conveying device 600; First conveying line 610; Tray 611; Second conveying line 620; Pre-clamping assembly 700; Short circuit test assembly 800; Coding device 900; Scanning piece 910; Coding piece 920; Hemming assembly 1000; Hemming support frame 1010; Hob 1020; Third detection assembly 1100; Fourth support 1110; Third movable body 1120; Fifth support 1130; Stock bin 1140; Sixth clamping piece 1150; Material buffer mechanism 1200; Third transfer assembly 1300; First clamping component 1310; First support 1311; First movable body 1312; First clamping piece 1313; First turnover component 1320; Turnover support 1321; Second clamping piece 1322; First turnover piece 1323; First drive component 1330; Second drive component 1340; Second clamping component 1350; Second support 1351; Second movable body 1352; Third clamping piece 1353; Second turnover component 1360; Third support 1361; Fourth clamping piece 1362; Second turnover piece 1363; Material pushing piece 1364; Material storage assembly 1400; Incoming material mechanism 1500. DETAILED DESCRIPTION

[0019] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application.

[0020] Please refer toFigure 1 This is a schematic diagram of a square battery cell welding top cover welding device according to an embodiment of the present invention. The square battery cell welding top cover welding device includes: a material receiving mechanism 1500, at least one welding mechanism, a detection mechanism, and a material buffer mechanism 1200. The material receiving mechanism 1500 is configured to store materials. The welding mechanism is connected to the material receiving mechanism 1500 and is configured to sequentially weld the negative electrode top cover and the positive electrode top cover of the materials. The detection mechanism is configured to perform burr removal, burr detection, and short circuit testing on the welded materials. The material buffer mechanism 1200 includes a buffer circulation line. The buffer circulation line is arranged along the length direction of the welding mechanism and is spaced apart from the welding mechanism. The buffer circulation line has a feed end and a discharge end. The feed end of the buffer circulation line is connected to the discharge end of the welding mechanism, and the discharge end can be connected to the feed end of the detection mechanism.

[0021] Compared to existing technologies, this device, through the sequential feeding mechanism 1500, welding mechanism, and inspection mechanism, enables automated production and transfer of square battery cell materials for feeding, welding, and inspection. A buffer circulation line is also configured between the welding and inspection mechanisms. This buffer circulation line facilitates the transfer and buffering of qualified materials from the welding mechanism to the inspection mechanism, and also allows for the screening of unqualified materials, preventing them from flowing into the inspection mechanism. This achieves automated production of the square battery cell welding top cover process, solving the technical problem of low production efficiency in the existing technology due to the lack of integrated equipment capable of simultaneously performing continuous automatic welding and post-weld inspection. Furthermore, the feeding mechanism 1500 is used for material transportation. During transportation, the material is placed vertically and moved horizontally along a preset direction. A blowing device is also installed along the material transportation path to remove dust or impurities from the material surface; details are omitted here.

[0022] Furthermore, there are two welding mechanisms here, which separate the welding of the positive and negative electrodes of the battery cell into two welding mechanisms. This simplifies the structure of a single welding mechanism and improves the welding accuracy. At the same time, in conjunction with the alternately set detection mechanisms, it can realize continuous welding and continuous detection of the battery cell, making the production cycle more compact and improving the welding efficiency of the battery cell.

[0023] In one embodiment, the buffer circulation line has a first discharge end and a second discharge end. The first discharge end of the buffer circulation line is connected to the feed end of the detection mechanism and is used to transport qualified materials after welding to the detection mechanism. The second discharge end of the buffer circulation line is used to recover unqualified materials after welding.

[0024] like Figures 1 to 5As shown, a preferred embodiment of the present invention provides a welding device for welding the top cover of a square battery cell. The welding mechanism includes a first transfer component, at least one first welding component, a first flipping component, at least one second welding component, and a second transfer component arranged in sequence, a first detection component, and a second detection component. The first welding component and the second welding component have the same structure and are used to weld the positive and negative electrodes, respectively. The first detection component and the second detection component have the same structure and are used to perform post-weld detection of the positive and negative electrodes, respectively. The first transfer component and the second transfer component have the same structure and are used to perform pre-weld transfer of the positive and negative electrodes.

[0025] Furthermore, two first welding components 100 and two first detection components 200 are alternately arranged along a first direction. The two first welding components 100 are used to weld the positive and negative electrodes of the battery cell 500, respectively, and the two first detection components 200 are used to detect the positive and negative electrode welding states of the battery cell 500, respectively. The first transfer component 300 is used to transfer the battery cell 500 between the first welding components 100 and the first detection components 200.

[0026] The first detection component 200 includes a first clamping mechanism 4 and a vision component 5 disposed on the side of the first clamping mechanism 4 along the second direction. The first clamping mechanism 4 is configured to clamp the battery cell 500 and drive the battery cell 500 to rotate about an axis extending along a third direction, so that the vision component 5 can obtain the welding state of the battery cell 500 at different positions. The first direction, the second direction and the third direction are perpendicular to each other.

[0027] Specifically, in this embodiment, two first detection components 200 are set up for the welding of the positive and negative electrodes of the square battery cell 500, so that the welding of the positive and negative electrodes of the battery cell 500 is carried out separately at two workstations. This not only simplifies the welding structure of the battery cell 500, but also avoids the problem of reduced welding accuracy caused by the complex structure. At the same time, it also enables a single welding device to weld the next batch of battery cells 500 more quickly, thereby improving the welding efficiency of the battery cell 500. In addition, in this embodiment, a first detection component 200 is alternately arranged corresponding to the first welding component 100. The first detection component 200 is arranged at the rear end of the first welding component 100. After the first welding component 100 completes the welding work of the positive or negative electrode of the battery cell 500, the first transfer component 300 will transfer the battery cell 500 to the first clamping mechanism 4 of the first detection component 200 for clamping and fixing. Then the first clamping mechanism 4 drives the battery cell 500 to rotate, so as to adjust the posture of the battery cell 500 relative to the vision component 5, so that the vision component 5 can more comprehensively capture the circumferential weld on the battery cell 500, thereby enabling more comprehensive detection of the welding quality of the battery cell 500. While the first inspection component 200 inspects the welding quality of the battery cell 500, the preceding welding equipment can simultaneously perform welding work on the next batch of battery cells 500. After the next batch of battery cells 500 is welded, the previous batch of battery cells 500 is also inspected and transferred by the first transfer component 300 to the next first welding component 100 or the next production process, thereby freeing up the inspection station and facilitating the welding quality inspection of the next batch of battery cells 500. In this embodiment, by alternating the first welding component 100 and the first inspection component 200, continuous welding and continuous inspection of battery cells 500 are achieved, making the production cycle more compact, thereby improving both the welding quality and the welding efficiency.

[0028] like Figure 6 and Figure 8 In some embodiments, the first welding assembly 100 includes a welding portion 1 and a cell portion 2 disposed opposite each other along a second direction. The cell portion 2 includes a clamping assembly 21 and a rotating assembly 22. The rotating assembly 22 is configured to drive the clamping assembly 21 to rotate about an axis extending along a third third direction when the cell 500 is welded to a corner.

[0029] The welding section 1 includes a follower component 11 and a welding component 12. The welding component 12 is used for laser welding of the battery cell 500, and the follower component 11 is used to adjust the spatial position and state of the welding component 12. The follower component 11 is configured to continuously adjust the spatial position and orientation of the welding component 12 in coordination with the rotation speed of the clamping component 21 when the square battery cell 500 is welded to a corner so that the welding state of the square battery cell 500 remains stable.

[0030] Specifically, in traditional solutions, the curved seams at the corners of the square battery cell 500 and the straight seams on the sides often need to be welded independently, which leads to a decrease in product welding quality. In this embodiment, a rotating component 22 is provided below the clamping component 21, and a follower component 11, linked to the rotating component 22, is provided below the welding component 12. When welding the straight seams on the front and sides of the square battery cell 500, the rotating component 22 remains stationary, while the follower component 11 can move the spatial position of the welding component 12 along a first direction, so that the welding laser moves along the extension direction of the straight seam to weld the square battery cell 500. When welding to the corner of the square battery cell 500, the rotating component 22 drives the clamping component 21 and the square battery cell 500 it clamps to rotate. Simultaneously, the follower component 11 adjusts the spatial position of the welding component 12 according to the rotation speed of the clamping component 21, ensuring the welding component 12 maintains a stable position relative to the welding point at the corner of the square battery cell 500. This allows the welding structure to be stably and accurately focused on the arc-shaped joint at the corner. After the arc-shaped joint at the corner is welded, the follower component 11 continues to drive the welding component 12 to move linearly along the first direction to weld the straight joints on the square battery cell 500, ultimately achieving continuous welding of the square battery cell 500. This improves the continuity and consistency of the weld, thereby enhancing the welding quality of the battery cell 500 product. It should be noted that in this embodiment, the movement of the follower component 11 can be implemented using a numerical control interpolation algorithm; the specific algorithm details are not elaborated here.

[0031] Furthermore, it is understandable that in the actual welding process of the square battery cell 500, in addition to controlling the spatial position of the welding assembly 12 to ensure that the distance between the welding assembly 12 and the square battery cell 500 remains stable, it is often also necessary to control the orientation of the welding assembly 12 relative to the square battery cell 500, including its orientation and angle. In this embodiment, the follower assembly 11 can also adjust the orientation of the welding assembly 12 relative to the square battery cell 500 according to the actual welding requirements, so that the welding laser can be more accurately and stably focused on the joint to be welded, thereby meeting different welding requirements and improving the welding quality.

[0032] like Figure 6 , Figure 8 as well as Figures 9 to 13 As shown, in some embodiments, the clamping assembly 21 includes a base plate 211, a second clamping mechanism 212 and a third clamping mechanism 213 arranged sequentially along a third direction. The base plate 211 is connected to the rotating assembly 22. The second clamping mechanism 212 is configured to move relative to the base plate 211 along a third direction to clamp the lower part of the battery cell 500. The third clamping mechanism 213 is configured to clamp and fix the upper part of the battery cell 500.

[0033] Specifically, in this embodiment, the main body of the rotating component 22 is fixedly mounted on the equipment base, and the second clamping mechanism 212 and the third clamping mechanism 213 are mounted on the base plate 211 above it. When welding to the corner and it is necessary to control the rotation of the square battery cell 500, the rotating component 22 can drive the base plate 211 to rotate at a preset speed, thereby controlling the rotation of the square battery cell 500 clamped and fixed on the base plate 211 to realize the welding work at the corner of the square battery cell 500.

[0034] In the actual production process, since the welding seam of the square battery cell 500 is often on the upper edge of the shell, when the robotic arm clamps the square battery cell 500 from the previous production equipment onto the base plate 211, the part clamped by the robotic arm is often the upper part of the square battery cell 500. In order to ensure the safety of the robotic arm operation, avoid problems such as collisions, and make the posture of the square battery cell 500 on the base plate 211 more stable, so that the square battery cell 500 is less likely to shake during the welding process, this embodiment provides a second clamping mechanism 212 and a third clamping mechanism 213 on the base plate 211 along a third direction. The second clamping mechanism 212 is used to clamp the bottom of the square battery cell 500, while the third clamping mechanism 213 is used to clamp the upper part of the square battery cell 500 to ensure that the upper part of the square battery cell 500 does not shake during the welding process. During the actual transfer and clamping process of the square battery cell 500, the robotic arm transfers the square battery cell 500 to the top of the base plate 211. Then, the second clamping mechanism 212 moves upward along a third direction and clamps and fixes the lower part of the square battery cell 500. After the second clamping mechanism 212 stably clamps the square battery cell 500, the robotic arm moves away from the base plate 211. Subsequently, the third clamping mechanism 213 clamps and fixes the upper part of the square battery cell 500 to ensure that the subsequent welding work can proceed smoothly. It is understandable that after the third clamping mechanism 213 clamps and fixes the upper part of the square battery cell 500, the second clamping mechanism 212 can release the clamping and fixing of the lower part of the square battery cell 500, or it can continue to clamp the lower part of the square battery cell 500 to further improve the stability of the position of the square battery cell 500 during the welding process.

[0035] In some embodiments, the second clamping mechanism 212 includes a first mounting plate 2121, a second mounting plate 2122, and a first clamping component 2123. The first mounting plate 2121 is slidably disposed on the base plate 211 in a third direction, the second mounting plate 2122 is slidably disposed on the first mounting plate 2121 in a first direction, and the first clamping component 2123 is slidably disposed on the second mounting plate 2122 in a second direction.

[0036] The third clamping mechanism 213 includes a third mounting plate 2131 and two second clamping components 2132 disposed on the third mounting plate 2131. The third mounting plate 2131 is fixed to the base plate 211, and the two second clamping components 2132 respectively abut against two sides of the clamping cell 500 along the first direction and two sides along the second direction.

[0037] Specifically, in this embodiment, the third mounting plate 2131 is disposed on the top of the base plate 211. The third mounting plate 2131 has a circular structure and is coaxially arranged with the rotating component 22. In some embodiments, the third mounting plate 2131 can slide relative to the base plate 211 in a third direction to facilitate the disassembly and installation of the rotating component 22 and the base plate 211. During the welding process of the square battery cell 500, since it is necessary to continuously weld the straight seams on the side of the square battery cell 500 and the arc-shaped seams at the corners, the seams of the square battery cell 500 have an overall annular structure. Therefore, clamping in a single direction cannot meet the positional accuracy requirements of the square battery cell 500 during the welding process. Especially during the welding of arc-shaped seams, the welding accuracy of the arc-shaped seams is affected by the positional accuracy of the square battery cell 500 in both directions. In this embodiment, the two second clamping components 2132 in the third clamping mechanism 213 are respectively arranged along the first direction and the second direction. Thus, the two second clamping components 2132 can respectively abut and clamp the two sides of the square battery cell 500 arranged along the first direction and the two sides arranged along the second direction, thereby achieving comprehensive clamping and fixing of the square battery cell 500. This improves the positional accuracy of the square battery cell 500 during the welding process and avoids the problem of decreased welding quality due to unstable clamping on one side. Furthermore, the second clamping component 2132 also includes a second driving component 21321, a fixed clamping block 21322, and a movable clamping block 21323. The fixed clamping block 21322 and the second driving component 21321 are both fixed on the third mounting plate 2131, while the movable clamping block 21323 is slidably connected to the third mounting plate 2131, and the movable clamping block 21323 is arranged opposite to the corresponding fixed clamping block 21322. When it is necessary to clamp and fix the upper part of the square battery cell 500, the second driving component 21321 drives the corresponding movable clamping block 21323 to move along the first or second direction to approach the corresponding fixed clamping block 21322, thereby abutting against the square battery cell 500 to clamp and fix the square battery cell 500 between the fixed clamping block 21322 and the movable clamping block 21323. This achieves single-sided positioning of the square battery cell 500, ensuring the stability and reliability of the position of the square battery cell 500, improving the positional accuracy of the square battery cell 500, and preventing the square battery cell 500 from shaking. It is understood that the fixed clamping block 21322 serves as the reference for the positional accuracy during the clamping process of the square battery cell 500. It is detachably fixed to the third mounting plate 2131 by bolts or other structures, and its installation position can be finely adjusted according to actual needs during installation to fine-tune the clamping reference of the square battery cell 500. The subsequent welding path design of the welding assembly 12 requires this reference as an important parameter. The second drive component 21321 is preferably a cylinder structure, but in some other embodiments it may also be a linear motor module.

[0038] It should also be noted that, in actual production, to avoid collisions between the robotic arm and the machine and to ensure that the second clamping mechanism 212 can stably clamp the lower part of the square battery cell 500, this embodiment provides a slide rail 2111 on the base plate 211. The second clamping mechanism 212 is slidably connected to the slide rail 2111, which extends in a third direction. A third driving component 2112 is also provided on the base plate 211. The slider on the third driving component 2112 is fixedly connected to the second clamping mechanism 212, thereby driving the second clamping mechanism 212... The second clamping mechanism 212 can move up and down along the slide rail 2111. When it needs to receive the square battery cell 500 on the robotic arm, the third drive component 2112 drives the second clamping mechanism 212 to move upward along the third direction to clamp the lower part of the square battery cell 500, preventing the robotic arm from descending excessively. After the robotic arm moves away, the third drive component 2112 can drive the second clamping mechanism 212 to move downward, thereby moving the square battery cell 500 to the welding station. Then, the third clamping mechanism 213 clamps the upper part of the square battery cell 500, thus completing the clamping work of the square battery cell 500. The third drive component 2112 can be a linear motor module or a rodless cylinder. It is understood that, in a specific embodiment, four slide rails 2111 are circumferentially arranged on the base plate 211 around the axis extending along the third direction, thereby improving the stability of the second clamping mechanism 212 when sliding along the third direction. Meanwhile, a sensor 2113 is also provided on the base plate 211, and a sensing element is provided on the slider of the drive component corresponding to the sensor 2113. The sensor 2113 can monitor the movement state of the second clamping mechanism 212 along a third direction, thereby ensuring the stable operation of the equipment. The sensor 2113 and the sensing element can also be provided on the base plate 211 and the slider of the drive component, respectively.

[0039] Furthermore, in the subsequent welding process, the third clamping mechanism 213 mainly serves to clamp and fix the position of the square battery cell 500. Since the third clamping mechanism 213 uses single-sided positioning, the square battery cell 500 will be pushed by the movable clamping block 21323 during clamping, resulting in slight displacement along the first and second directions. To avoid conflict between the second clamping mechanism 212 and the third clamping mechanism 213, and to prevent deformation and damage to the square battery cell 500 due to pulling on its upper and lower parts, in this embodiment, a first mounting plate 2121 and a second mounting plate 2122 are sequentially arranged below the first clamping component 2123. The first mounting plate 2121 is fixedly connected to the slider of the third driving component 2112 via a connector, while the second mounting plate 2122 is slidably disposed on top of the first mounting plate 2121 along the first direction. A clamping component 2123 is slidably disposed on top of the second mounting plate 2122 along the second direction. Thus, during the clamping and fixing of the square battery cell 500 by the third clamping mechanism 213, the first clamping component 2123 can move along the first or second direction with the square battery cell 500 to adapt to the clamping requirements of the two second clamping components 2132 in the third clamping mechanism 213. This avoids clamping and pulling damage to the square battery cell 500 due to mismatch in position, ensuring the stability and reliability of product quality. It is understood that in some other embodiments, the second mounting plate 2122 may also be slidably disposed on the first mounting plate 2121 along the second direction, while the first clamping component 2123 may be slidably disposed on the second mounting plate 2122 along the first direction. Furthermore, the first clamping component 2123 preferably clamps the front and back sides of the square battery cell 500 to increase the contact area with the square battery cell 500, thereby improving the stability and safety of the clamping.

[0040] In some embodiments, the follower assembly 11 includes a first guide rail 111, a second guide rail 112, a third guide rail 113, a fourth mounting plate 114, and a fifth mounting plate 115 connected in sequence; the first guide rail 111, the second guide rail 112, and the third guide rail 113 are respectively used to drive the fourth mounting plate 114 to move along a first direction, a second direction, and a third direction; the fourth mounting plate 114 is rotatably connected to the fifth mounting plate 115 about an axis extending along the third direction, and the fifth mounting plate 115 is rotatably connected to the welding assembly 12 about an axis extending along the first direction.

[0041] Specifically, in this embodiment, the first guide rail 111, the second guide rail 112, and the third guide rail 113 can be linear motor modules or cylinder assemblies, as long as they can meet the requirements for precise movement of the welding assembly 12. The first guide rail 111 can drive the second guide rail 112 and all its components to move along a first direction, while the second guide rail 112 can drive the third guide rail 113 and all its components to move along a second direction. The third guide rail 113 can drive the fourth mounting plate 114 and the welding assembly 12 on it to move along a third direction, thereby achieving adjustment of the spatial position of the welding assembly 12. When welding at the corner of the square battery cell 500, the first guide rail 111, the second guide rail 112, and the third guide rail 113 can continuously adjust the spatial position of the welding assembly 12 according to the CNC interpolation algorithm, so that the distance between the welding assembly 12 and the welding point at the corner of the square battery cell 500 remains stable, ensuring that the welding laser can be stably and continuously focused on the square battery cell 500, thereby improving the welding quality of the square battery cell 500.

[0042] Building upon the above, this embodiment further includes a fifth mounting plate 115, which is rotatably mounted on the fourth mounting plate 114. A welding assembly 12 is rotatably mounted on this fifth mounting plate 115. Through two rotational mounting operations, the welding assembly 12 can adjust its pitch and lateral angles relative to the square battery cell 500, thereby better meeting the welding requirements during the welding process and further improving welding quality. Furthermore, in this embodiment, the fifth mounting plate 115 can rotate relative to the fourth mounting plate 114 about an axis extending in a third direction, and the welding assembly 12 can rotate relative to the fifth mounting plate 115 about an axis extending in a first direction. In other embodiments, the fifth mounting plate 115 can rotate relative to the fourth mounting plate 114 about an axis extending in the first direction, and the welding assembly 12 can rotate relative to the fifth mounting plate 115 about an axis extending in a third direction.

[0043] It is understood that the rotation of the fifth mounting plate 115 relative to the fourth mounting plate 114 and the rotation of the welding assembly 12 relative to the fifth mounting plate 115 can be driven by a motor to synchronously rotate and adjust the posture of the welding assembly 12 during the welding process to meet the welding requirements. In a secondary embodiment, the rotation of the fifth mounting plate 115 relative to the fourth mounting plate 114 and the rotation of the welding assembly 12 relative to the fifth mounting plate 115 need to be performed during the equipment debugging and maintenance phase. The welding assembly 12 is rotated into place first and then locked in place with bolts. In both embodiments, angle scales or angle sensors 2113 can be provided on the fourth mounting plate 114 and the fifth mounting plate 115 to assist in monitoring and controlling the current posture of the laser welder 121.

[0044] Furthermore, the welding assembly 12 includes a laser welder 121 and a third vision component 122, both of which are disposed on the fourth mounting plate 114. In a preferred embodiment, the laser welder 121 is rotatably connected to the fifth mounting plate 115, while the third vision component 122 is fixedly disposed on the fourth mounting plate 114. The laser welder 121 emits a laser and focuses it on the joint of the square battery cell 500 to be welded, so as to heat the square battery cell 500 and the solder to achieve welding of the square battery cell 500. Laser welding requires strict control of the positional accuracy of the laser focusing point to achieve stable and high-quality welding. In the straight joint welding section, the first guide rail 111 only needs to drive the laser welder 121 to move along the first direction to achieve welding. In the arc joint welding section at the corner, the first guide rail 111, the second guide rail 112 and the third guide rail 113 need to move simultaneously to adjust the spatial position of the laser welder 121, and the orientation and angle of the laser welder 121 are adjusted by the fifth mounting plate 115 and the fourth mounting plate 114. The third vision component 122 can monitor the welding status of the square battery cell 500 during and before welding. If the third vision component 122 detects that the square battery cell 500 is not properly clamped or has an angular deviation before welding, it will issue an alarm. Subsequently, the second drive component 21321 can be manually or controlled by the main control system to push the movable clamping block 21323 to continue moving, thus stabilizing the clamping of the square battery cell 500 and correcting its position. Furthermore, after welding the square battery cell 500, the third vision component 122 can scan and photograph the weld seam. If a missed weld or welding defect is detected, it can issue an alarm to remind or control the laser welder 121 to perform re-welding, thereby further improving the welding quality of the square battery cell 500. In other embodiments, the third vision component 122 can also monitor the laser welding status during welding to control welding process parameters and provide a basis for subsequent maintenance and tracing welding problems.

[0045] like Figure 11 As shown, in some embodiments, the first welding assembly 100 further includes a protective part 3 disposed on the side of the cell part 2 away from the welding part 1. The protective part 3 includes a gantry 31 and a protective member 32 movably disposed on the gantry 31. The protective member 32 is located above the cell 500. The gantry 31 is used to adjust the spatial position of the protective member 32 so that the protective member 32 covers and protects the electrodes of the cell 500.

[0046] Specifically, in the actual welding process, the electrodes on the top cover of the square battery cell 500 are easily damaged by the laser, and are also easily contaminated with welding debris and dust, resulting in defective welds. In this embodiment, a protective part 3 is specifically provided. This protective part 3 is located on the other side of the clamping assembly 21 along the second direction, and does not interfere with the welding operation of the welding assembly 12. The lower part of the gantry 31 of the protective part 3 is slidably mounted on the base. The gantry 31 can move along the first direction relative to the square battery cell 500 clamped and fixed on the clamping assembly 21. A protective mounting seat 33 is slidably mounted on the gantry 31 along the second direction. A fourth driving component 34 is provided on the protective mounting seat 33. The fourth driving component 34 can drive the protective component 32 to move up and down along the third direction. The three components work together to drive and adjust the spatial position of the protective component 32, so that the protective component 32 can accurately cover the electrodes of the square battery cell 500 cover plate, thereby protecting the electrodes of the square battery cell 500 during the welding process and preventing the electrodes of the battery cell 500 from being damaged. In some embodiments, the protective member 32 can also rotate relative to the fourth drive member 34 about an axis extending in a third direction, thereby adjusting the posture of the protective member 32 so that the protective member 32 can match the electrode on the top of the square cell 500, avoiding damage to the electrode due to posture mismatch during the pressing down of the protective member 32.

[0047] In addition, in some embodiments, the protective part 3 also includes a rangefinder 35. The rangefinder 35 is configured to monitor the parallelism of the square battery cell 500 relative to the first direction. When the two lasers in the rangefinder 35 detect a problem with the parallelism of the square battery cell 500, it indicates that the square battery cell 500 is tilted. At this time, the second drive component 21321 can be controlled to push the movable clamping block 21323 to continue moving, so as to stabilize the clamping of the square battery cell 500 and correct the position of the square battery cell 500. The rangefinder 35, together with the third vision component 122, can more accurately monitor the posture of the square battery cell 500.

[0048] Furthermore, when the third-vision component 122 detects that the top cover of the square battery cell 500 is tilted up or deviates relative to the casing, the posture of the top cover of the square battery cell 500 can be corrected by controlling the movement of the protective component 32; such as Figure 4 and Figure 5 As shown, in some embodiments, the first welding assembly 100 includes a plurality of welding portions 1 arranged in an array along a first direction, and the first detection assembly 200 is provided with a plurality of first clamping mechanisms 4 arranged in an array along the first direction.

[0049] The vision component 5 includes a first vision element 51 and a second vision element 52 respectively disposed on both sides of the first clamping mechanism 4 along a second direction. Both the first vision element 51 and the second vision element 52 are configured to move relative to the first clamping mechanism 4 along a first direction to detect battery cells 500 clamped by different first clamping mechanisms 4. Specifically, to further improve production efficiency, this embodiment provides multiple welding portions 1 along the first direction in the first welding assembly 100, and correspondingly multiple battery cell portions 2 and protective portions 3 are also provided to simultaneously perform welding work on multiple battery cells 500. When multiple welding portions 1 are provided in the first welding assembly 100, the first detection assembly 200 also correspondingly provides multiple first clamping mechanisms 4 to simultaneously perform visual inspection on multiple welded battery cells 500. In a preferred embodiment, three welding portions 1, three battery cell portions 2, and three first clamping mechanisms 4 are provided.

[0050] Furthermore, to improve visual inspection efficiency, this embodiment provides a first visual element 51 and a second visual element 52 on both sides of the first clamping mechanism 4 along the second direction. Both the first visual element 51 and the second visual element 52 can move relative to the first clamping mechanism 4 along the first direction. When the first visual element 51 performs visual inspection on one of the battery cells 500, the second visual element 52 can move along the first direction to another first clamping mechanism 4 to perform visual inspection on the other battery cell 500. The first visual element 51 and the second visual element 52 perform visual inspection alternately, which can further improve the inspection cycle after the battery cell 500 is welded, thereby improving the overall welding production efficiency of the battery cell 500. The inspection items of the first visual element 51 and the second visual element 52 can be the same or different. In a specific embodiment, these two visual elements can perform 2D inspection and 3D inspection respectively. The driving structure for driving the first visual element 51 and the second visual element 52 to move along the first direction can be a cylinder or a more precise linear motor module, which will not be described in detail here.

[0051] In some embodiments, a first driving component 6 is provided between adjacent first clamping mechanisms 4. One end of the first driving component 6 is fixedly connected to a first clamping mechanism 4, and the movable end of the first driving component 6 is connected to another first clamping mechanism 4. The first driving component 6 is used to drive the two adjacent first clamping mechanisms 4 to move closer or further away along a first direction in order to adjust the distance between the two adjacent first clamping mechanisms 4.

[0052] Specifically, in actual production processes, in order to further improve space utilization, it is often necessary to reduce the volume of each piece of equipment and the spacing between each mechanism in the equipment. For production safety considerations, the spacing between each cell part 2 in the first welding assembly 100 often cannot be adjusted to be smaller. However, in this embodiment, a first driving component 6 for adjusting the spacing between adjacent first clamping mechanisms 4 is provided between the first clamping mechanisms 4 in the first detection assembly 200. In particular, in the first detection assembly 200 where the positive and negative electrodes of the cell 500 have been welded, it is necessary to control and reduce the spacing between each cell 500 so that the first transfer assembly 300 can clamp and transfer the detected cell 500 to the next process. Reducing the spacing between the cells 500 can also indirectly reduce the volume of the first transfer assembly 300, thereby improving the space utilization of the entire workstation.

[0053] The first driving component 6 can be a rodless cylinder, with one end of its main body fixed to the base and the other end fixedly connected to a first clamping mechanism 4. Its slider is fixedly connected to another adjacent first clamping mechanism 4. By changing the air pressure, it can be driven to slide relative to its main body along a first direction, thereby adjusting the distance between the two adjacent first clamping mechanisms 4. It is understandable that during the visual inspection stage, to ensure the accuracy and safety of the visual inspection, it is still necessary to maintain a certain distance between adjacent battery cells 500. After the visual inspection is completed, the distance between adjacent battery cells 500 can be shortened by adjusting the first driving component 6 to facilitate the subsequent transfer of battery cells 500 by the first transfer assembly 300.

[0054] In some embodiments, the first clamping mechanism 4 includes a first base plate 41, a second base plate 42, a third base plate 43, and a clamping structure 44 connected sequentially along a third direction; the second base plate 42 is configured to be able to move linearly relative to the first base plate 41 along a third direction, the third base plate 43 is configured to be able to rotate relative to the second base plate 42 about an axis extending along a third direction, and the clamping structure 44 is disposed on the top of the third base plate 43.

[0055] Specifically, in this embodiment, the first base plate 41 is fixedly mounted on the equipment base, while the second base plate 42 can move up and down relative to the first base plate 41 along a third direction under the drive of the drive structure. This allows the clamping structure 44 to cooperate with the gripper mechanism 71 of the first transfer component 300 to better receive and clamp the transferred battery cell 500 to the testing station, avoiding the risk of collision caused by the gripper mechanism 71 of the first transfer component 300 descending excessively. At the same time, it can also improve the efficiency and stability of the transfer of the battery cell 500. The third base plate 43 can rotate relative to the second base plate 42 about the third-direction extension axis, which allows the clamping structure 44 and the clamped and fixed battery cell 500 on it to rotate about the third-direction extension axis. The weld seam on the square battery cell 500 is a ring structure. When the square battery cell 500 rotates, its weld seam can be fully captured by the first vision element 51 and the second vision element 52, so that the welding condition of the square battery cell 500 can be more comprehensively detected, so that defective products can be transferred to the defective product conveyor line in a timely manner in subsequent processes.

[0056] In some embodiments, the clamping structure 44 includes a third clamping member 441 and a fourth clamping member 442 spaced apart along a third direction. The third clamping member 441 is fixedly disposed on the top of the third base plate 43 and is used to clamp two opposite sides of the battery cell 500 along a second direction. The fourth clamping member 442 is used to clamp two opposite sides of the battery cell 500 along a first direction, and the fourth clamping member 442 is configured to rotate relative to the third base plate 43 about an axis extending along the second direction to adjust the position of the positive and negative terminals of the battery cell 500.

[0057] Specifically, in this embodiment, the clamping structure 44 includes a third clamping component 441 and a fourth clamping component 442, which are spaced apart vertically on the third base plate 43. The third clamping component 441 can clamp the lower part of the battery cell 500, while the fourth clamping component 442 clamps the upper part of the battery cell 500. This makes the state of the battery cell 500 more stable during the inspection process. When it is necessary to inspect the weld of the battery cell 500, the third base plate 43 drives the third clamping component 441 and the fourth clamping component 442 to rotate. The third clamping component 441 and the fourth clamping component 442, which clamp the battery cell 500 vertically, can ensure the stability of the state of the battery cell 500 during the rotation process, thereby ensuring the accuracy and effectiveness of the inspection.

[0058] Furthermore, in this embodiment, the negative electrode of cell 500 needs to be welded first, followed by the positive electrode. This process requires adjusting the orientation of cell 500. For production safety, simplified welding structure, and to improve welding accuracy and quality, this embodiment incorporates the cell 500 flipping mechanism within the first detection assembly 200. Specifically, after the weld seam of cell 500 is inspected, the fifth driving component 443 drives the fourth clamping component 442 to rotate relative to the third base plate 43 around an axis extending in the second direction, thereby reversing the positions of the positive and negative electrodes of cell 500 to facilitate subsequent positive electrode welding. Since the fifth driving component 443 needs to control the rotation of the fourth clamping component 442 and the battery cell 500, the third clamping component 441 needs to avoid the rotation path of the battery cell 500. Therefore, the third clamping component 441 is configured to clamp the two opposite sides of the battery cell 500 along the second direction. To ensure the comprehensiveness, stability, and reliability of the clamping of the battery cell 500, the fourth clamping component 442 clamps the two opposite sides of the battery cell 500 along the first direction. It is understood that in this embodiment, each clamping component can use a cylinder as the power source for clamping. In addition, the rotation structure of the fourth clamping component 442 relative to the third base plate 43 can be set only in the first detection component 200 between the two first welding components 100, or it can be set in both first detection components 200, depending on the actual needs.

[0059] It should also be noted that, in this embodiment, the first transfer component 300 includes a guide rail 7 extending along a first direction. The guide rail 7 is slidably provided with a plurality of gripper mechanisms 71. The plurality of gripper mechanisms 71 can simultaneously perform the transfer work from the first welding component 100 to the first detection component 200 and the transfer work from the first detection component 200 to the subsequent first welding component 100 or other subsequent production processes, thereby improving the production cycle and thus improving the efficiency of the welding production of the battery cell 500. Each gripper mechanism 71 is provided with a plurality of mechanical grippers 72 corresponding to the plurality of first welding components 100. Each mechanical gripper 72 can clamp and fix a battery cell 500, and the mechanical gripper 72 can move up and down relative to the guide rail 7 along a third direction, thereby enabling better clamping and transfer of the battery cell 500 between different processes.

[0060] like Figure 7As shown, for the sake of space utilization, transfer efficiency, and transfer safety, the spacing between the battery cells 500 needs to be shortened during the transfer process, while the spacing between the battery cells 500 needs to be increased during the welding process to match the spacing of the multiple welding parts 1, so that multiple battery cells 500 can be accurately transferred to the corresponding welding parts 1 at one time. Therefore, in this embodiment, a pitch-changing device 400 is also included. The pitch-changing device 400 is arranged along the first direction on the side of the negative electrode first welding assembly 100 away from the first detection assembly 200. The pitch-changing device 400 includes a fourth clamping mechanism 8 corresponding to the multiple welding parts 1. A driving component is also provided between adjacent fourth clamping mechanisms 8. The driving component can also be a rodless cylinder, one end of which is fixed on the base, and the other end is fixedly connected to a fourth clamping mechanism 8. The slider on the driving component is fixedly connected to another adjacent fourth clamping mechanism 8. The driving component can drive the two adjacent fourth clamping mechanisms 8 to move closer or further away along the first direction, thereby realizing the adjustment of the spacing between the two adjacent fourth clamping mechanisms 8. It is understood that in some embodiments, the fourth clamping mechanism 8 has a similar structure to the first clamping mechanism 4, both having a clamping structure 44, and both clamping structures 44 are capable of moving up and down along a third side. Furthermore, the clamping structure 44 in the fourth clamping mechanism 8 also includes two clamping members to clamp and fix the upper and lower parts of the battery cell 500 respectively.

[0061] In this embodiment, as Figures 14 to 24 As shown, the conveying device 600 includes a first conveyor line 610, a tray 611, a second conveyor line 620, a fifth support 1130, a hopper 1140, and a sixth clamping component 1150. By first setting the pre-clamping component 700 and the short-circuit test component 800 sequentially along the material conveying direction of the second conveyor line 620, and then setting the edge rolling component 1000 and the third detection component 1100 sequentially along the material conveying direction of the first conveyor line 610, and using the third transfer component 1300 to realize the automatic transfer of materials from the first conveyor line 610 to the second conveyor line 620, the materials can be subjected to edge rolling, edge detection, pre-clamping, and short-circuit testing in sequence, realizing continuous production of battery cells 500 without the need for workers to assist in material transfer, greatly improving production efficiency. It can solve the technical problem in the prior art that the production equipment for edge rolling, edge detection, short-circuit testing, and marking processes is scattered and requires manual assistance to transfer materials that have completed the previous process to the next process, thus making continuous production impossible.

[0062] Furthermore, the first conveyor line 610 here is a material conveying mechanism that is common and readily available in the market, such as a conveyor stepper line. For reference, please refer to Chinese invention patent with publication number CN222860306U, entitled "A Conveying Stepper Line", which will not be elaborated here.

[0063] Furthermore, after the two ends of the battery cell 500 are sealed and welded by the top cover, they need to go through processes such as burr rolling, burr quality inspection, pre-clamping, short circuit testing, and traceability code engraving in sequence. Therefore, the use of the first conveyor line 610, the second conveyor line 620, and the third transfer component 1300 can realize the continuous production and transfer of materials. At the same time, by arranging process equipment along the first conveyor line 610 or the second conveyor line 620 respectively, production efficiency can be effectively improved and space can be saved.

[0064] In this embodiment, the material conveying path of the second conveyor line 620 is circular; by setting a circular conveying path, the floor space of the equipment can be effectively reduced; furthermore, the second conveyor line 620 here is a common and readily available rotating mechanism on the market, such as a continuously rotating conveying drive mechanism, which will not be described in detail here.

[0065] In some embodiments, the discharge ends of the second conveyor line 620 and the first conveyor line 610 are spaced apart. The second conveyor line 620 can rotate around its own axis under the drive of the driving component, and at least one positioning fixture is installed on it. The rotation of the second conveyor line 620 causes the positioning fixture to pass through the loading station, the pre-clamping component 700 and the short-circuit test component 800 in sequence, which can realize the loading, pre-clamping and short-circuit testing of the battery cell 500.

[0066] In some embodiments, the second conveyor line 620 is divided into four stations, including a feeding station, a pre-clamping station, a short-circuit test station, and a marking station. That is, the second conveyor line 620 can switch to other stations after rotating 90°.

[0067] In this embodiment, as Figure 14 , Figure 20 and Figure 21 As shown, the third transfer assembly 1300 includes a first clamping component 1310, which is movably disposed above the first conveyor line 610 and the second conveyor line 620. The first clamping component 1310 includes a first bracket 1311, a first movable body 1312 and at least one first clamping member 1313.

[0068] The first support 1311 is disposed on one side of the first conveyor line 610 and the second conveyor line 620. The first movable body 1312 is connected to the first support 1311 and can move closer to or further away from the first conveyor line 610 or the second conveyor line 620. The first clamping member 1313 is connected to the first movable body 1312 and is used to clamp or release materials.

[0069] In one embodiment, such as Figures 20 to 22As shown, the third transfer assembly 1300 also includes a first flipping component 1320, which includes a flipping bracket 1321, at least two second clamping members 1322 and at least one first flipping member 1323.

[0070] The flipping bracket 1321 is disposed between the first conveyor line 610 and the second conveyor line 620. At least two second clamping members 1322 are disposed opposite to each other and are movably connected to the flipping bracket 1321 for clamping or releasing materials. At least one first flipping member 1323 is connected to the flipping bracket 1321 and the second clamping member 1322 for driving the material to flip relative to the flipping bracket 1321 at a preset angle. The first clamping member 1313 can move closer to or further away from the second clamping member 1322 for receiving materials.

[0071] In one embodiment, such as Figures 20 to 22 As shown, the conveying device 100 also includes a plurality of trays 611 spaced apart along the first conveying line 610. The trays 611 allow the two ends of the material to be suspended in the air. The third transfer component 1300 also includes a first drive component 1330 and a second drive component 1340.

[0072] The first driving component 1330 is disposed at the end of the first conveyor line 610 and connected to the first conveyor line 610. The first driving component 1330 can drive the pallet 611 to rise and fall relative to the first conveyor line 610. The second driving component 1340 is connected to the second bracket 1351 and the second clamping member 1322, and is used to drive the second clamping member 1322 to move closer to or away from the first conveyor line 610, and to receive the material in the pallet 611.

[0073] In one embodiment, such as Figure 14 , Figure 15 As shown, the testing mechanism also includes a storage component 1400, which is spaced apart from the first conveyor line 610 and configured to store materials. The third transfer component 1300 also includes a second clamping component 1350, which includes a second support 1351, a second movable body 1352 and at least one third clamping member 1353.

[0074] The second support 1351 is spaced apart from the storage component 1400 and the first conveyor line 610. The second movable body 1352 is movably disposed above the storage component 1400 and the first conveyor line 610. The third clamping member 1353 is movably connected to the second movable body 1352 and is used to clamp or release the material so that the material is transferred from the storage component 1400 to the first conveyor line 610.

[0075] In one embodiment, such as Figure 14 , Figure 15As shown, the material in the storage component 1400 is in a vertical position, and the material in the tray 611 is in a horizontal position. The third transfer component 1300 also includes a second flipping component 1360, which includes a third support 1361, at least one fourth clamping component 1362, at least one second flipping component 1363, and a pushing component 1364.

[0076] The third support 1361 is disposed on one side of the first conveyor line 610. The fourth clamping member 1362 is movably connected to the third support 1361 for clamping or releasing materials. The third clamping member 1353 can be moved horizontally above the fourth clamping member 1362 for transferring materials into the fourth clamping member 1362. The second flipping member 1363 is connected to the third support 1361 and the fourth clamping member 1362 for driving the fourth clamping member 1362 and the materials to flip relative to the third support 1361 by a preset angle. The pushing member 1364 is disposed on the rotation path of the fourth clamping member 1362 and is disposed relative to the tray 611 for pushing the materials in the fourth clamping member 1362 into the tray 611 located on the first conveyor line 610.

[0077] In one embodiment, such as Figure 15 , Figure 19 As shown, the third detection component 1100 is disposed between the hemming component 1000 and the second support 1351. The third detection component 1100 includes two fourth supports 1110, two third movable bodies 1120, two detection elements 1130, at least two fifth clamping elements 1140 and at least one third flipping element 1150.

[0078] Two fourth supports 1110 are respectively disposed on both sides of the first conveyor line 610 and are arranged along the length of the first conveyor line 610. A third movable body 1120 is connected to the fourth supports 1110 and can slide along the guide of the fourth supports 1110. A detection element 1130 is disposed relative to the material on the tray 611 and is connected to the third movable body 1120 for detecting the burr quality of the material. Two fifth clamping elements 1140 are disposed opposite to each other and are respectively connected to the fourth supports 1110 for clamping or releasing the material. A third flipping element 1150 is connected to the fourth supports 1110 and the fifth clamping elements 1140 for driving the fifth clamping elements 1140 and the material to flip relative to the fourth supports 1110 by a preset angle. The detection element 1130 can slide with the third movable body 1120 to above the fifth clamping elements 1140 and the material.

[0079] In one embodiment, such as Figure 14 , Figures 19 to 24As shown, the conveying device 100 also includes a fifth support 1130, a hopper 1140, and at least one sixth clamping member 1150; wherein, the fifth support 1130 is mounted above the second conveying line 620, the hopper 1140 is covered above the second conveying line 620 and connected to the fifth support 1130, and the top of the hopper 1140 has an opening that allows the first clamping member 1313 to be inserted, and the two pairs of side walls of the hopper 1140 also have through slots, the sixth clamping member 1150 is connected to the second conveying line 620 and can pass through or out through the through slots, and the sixth clamping member 1150 is configured to receive the material transferred by the first clamping member 1313.

[0080] In one embodiment, such as 20, Figure 21 As shown, the marking device 900 includes at least one scanning element 910 and at least one marking element 920; wherein, the scanning element 910 is disposed relative to the material between the third support 1361 and the edge-rolling assembly 1000 and connected to one side of the first conveyor line 610, and the marking element 920 is disposed relative to the material and connected to the fifth support 1130, for marking the QR code recognized by the scanning element 910 on the surface of the material.

[0081] In this embodiment, the positive and negative terminals of the battery cell 500 are respectively located at both ends of the battery cell. After the casing of the battery cell 500 is sealed and welded, multiple battery cells 500 are vertically arranged along their long side to facilitate the storage and transportation of materials. In order to facilitate the design of the fixture and the edge rolling assembly 1000, the edge rolling assembly 1000 is arranged on both sides of the first conveyor line 610 that conveys materials in the horizontal direction. As the materials are continuously conveyed in the horizontal direction, the two ends of the battery cell 500 can be roughened.

[0082] In some embodiments, the first conveyor line 610 can circulate and convey the battery cells in a specified direction, and the battery cells 500 on the first conveyor line 610 are placed horizontally. Here, the first conveyor line 610 is a material conveyor line that is common in the market and easy to purchase. The first conveyor line 610 is provided with a plurality of storage trays 611, and the storage trays 611 are provided with storage slots for placing the horizontally placed battery cells 500. The two ends of the battery cells 500 are respectively provided with positive or negative electrodes and are in a suspended position.

[0083] In some embodiments, the material storage assembly 1400 includes an incoming material storage bin and a material storage bin 1140 conveyor line. At least one battery cell 500 is inserted in the incoming material storage bin and placed vertically. The material storage bin 1140 conveyor line is arranged in the same direction as the first conveyor line 610 and is spaced apart, and is used to convey materials in a specified direction. The incoming material storage bin is slidably disposed on the material storage bin 1140 conveyor line. The material storage bin 1140 conveyor line can move the battery cell 500 closer to or away from the first conveyor line 610 by conveying the incoming material storage bin in its set direction. This will not be described in detail here.

[0084] In this embodiment, the edge-rolling assembly 1000 includes an edge-rolling support frame 1010 and two roller cutters 1020. The edge-rolling support frame 1010 is movably disposed on one side of the first conveyor line 610. The two roller cutters 1020 are disposed opposite to each other and are rotatably connected to the edge-rolling support frame 1010. The two roller cutters 1020 can respectively abut against the two side walls of the horizontal material. The rotation axis of the roller cutter 1020 is inclined relative to the horizontal material and forms an adjustable inclination angle.

[0085] The edge-rolling support frame 1010 serves as a support and connection. With two opposing roller cutters 1020, when the material passes through the channel between the two roller cutters 1020 along with the pallet 611, the ends of the material are suspended, allowing the two roller cutters 1020 to abut against the ends of the material respectively. As the roller cutters 1020 can rotate relative to the surface of the material, edge-rolling processing can be achieved. Furthermore, by setting the rotation axis of the roller cutter 1020 to be inclined relative to the horizontal material, it can be effectively ensured that the roller cutter 1020 is in contact with the surface of the material, thereby improving the edge-rolling processing efficiency.

[0086] In addition, in some embodiments, in order to ensure the quality of the battery cell 500 after welding, the weld seam needs to be roughened after the top cover of the battery cell 500 is welded. Here, the hobbing cutter 1020 is a common and readily available hobbing cutter on the market. Furthermore, the hobbing cutter 1020 is driven by a motor to rotate relative to the hobbing support frame 1010 or the material.

[0087] In some embodiments, the two opposing roller cutters 1020 are slidably connected to the edge-rolling support frame 1010 via a linear drive structure. The linear drive structure, such as a push rod motor, can drive the two roller cutters 1020 to move closer or further apart, so that the roller cutters 1020 can be adapted to battery cells 500 of different sizes and specifications. Furthermore, the linear drive structure here can also be a ball screw nut pair or a cylinder, etc., which will not be elaborated here.

[0088] In one embodiment, such as Figure 17 As shown, the hemming assembly 1000 also includes a hemming lifting member and a hemming translating member. The hemming lifting member has a first fixed end and a first lifting end. The first lifting end is connected to the hemming support frame 1010 and is used to drive the hemming support frame 1010 and the two roller cutters 1020 to rise and fall relative to the first fixed end. The hemming translating member has a second fixed end and a first translating end. The second fixed end is connected to the first conveying line 610 and the first translating end is connected to the first fixed end and is used to drive the hemming support frame 1010 and the two roller cutters 1020 to translate along the conveying direction of the first conveying line 610.

[0089] By setting up the edge lifting component and the edge translating component, the roller cutter 1020 can adjust its height and distance relative to the material on the first conveyor line 610, thereby ensuring that the material can pass through the channel between the two edges more accurately and improving the efficiency of edge rolling. The edge lifting component and the edge translating component are both common and readily available linear drive structures on the market, such as cylinders, hydraulic cylinders or linear drive components composed of ball screws. This is a conventional setting known to those skilled in the art and will not be described in detail here.

[0090] In some embodiments, the hemming assemblies 1000 located on both sides of the first conveyor line 610 are movably connected to the hemming support frame 1010 via hemming lifting components and hemming translation components, respectively, so that the two hemming assemblies 1000 can move relative to the first conveyor line 610 independently, which will not be described in detail here; in some embodiments, the hemming assembly 1000 also includes a hemming gantry frame, and the hemming assembly 1000 is set on both sides of the first conveyor line 610 via the hemming gantry frame, which will not be described in detail here.

[0091] In one embodiment, such as Figure 15 , Figure 16 As shown, the third transfer component 1300 includes a second clamping component 1350 and a second flipping component 1360. The second clamping component 1350 is movably disposed above the storage component 1400 and the first conveyor line 610, and is used to clamp or release materials in a horizontal state in the storage component 1400. The second flipping component 1360 is disposed on one side of the first conveyor line 610, and is used to receive the materials in a horizontal state clamped by the second clamping component 1350, and push them to the first conveyor line 610 after placing them horizontally.

[0092] By setting a second clamping component 1350 and a second flipping component 1360 between the first conveyor line 610 and the storage component 1400, the second clamping component 1350 first clamps the vertical material from the storage component 1400, completes the translation, and places it on the placement component. Then, the second flipping component 1360 drives the material to flip 90°, thus completing the adjustment of the material from a vertical state to a horizontal state. Furthermore, the second flipping component 1360 is set on the movement path of the second clamping component 1350 and is equipped with a clamping structure for clamping and receiving the material. The clamping structure is driven to rotate relative to the second clamping component 1350 by a drive motor.

[0093] In one embodiment, such as Figure 15 , Figure 16As shown, the second clamping component 1350 includes a second movable body 1352 and at least one third clamping member 1353. The second movable body 1352 is movably disposed above the material storage assembly 1400 and the first conveyor line 610. The third clamping member 1353 includes two first transfer clamping blocks. The two first transfer clamping blocks are disposed opposite to each other and are slidably connected to the second movable body 1352 to form an adjustable first transfer clamping gap. After the two first transfer clamping blocks slide close to each other, they can abut against the two side walls of the material to clamp the material in a vertical state.

[0094] By providing at least one third clamping member 1353 that can slide relative to the second movable body 1352 on the second movable body 1352, the clamping or release of materials can be realized; here, the third clamping member 1353 includes two first transfer clamping blocks arranged opposite to each other. Under the action of the linear drive structure, the two first transfer clamping blocks move closer or further away from each other to adjust the size of the first transfer clamping gap, and at the same time, the clamping or release of materials can be realized.

[0095] In some embodiments, the first transfer gripping block is a commercially available and readily procurable assembly line robot, such as a standard parallel pneumatic gripper or an electric servo gripper. This is a conventional configuration known to those skilled in the art and will not be described in detail here. The second gripping component 1350 also includes a second bracket 1351 for supporting and connecting the second movable body 1352. The number of second brackets 1351 is selected reasonably according to the specific application scenario and will not be described in detail here.

[0096] In some embodiments, the second support 1351 is a gantry structure, which will not be described in detail here.

[0097] In one embodiment, such as Figure 15 As shown, the second clamping component 1350 further includes a second transfer translation component and a second transfer lifting component. The second transfer translation component has a third fixed end and a second translation end. The second translation end is connected to the second movable body 1352 and is used to drive the second movable body 1352 and at least one third clamping component 1353 to move relative to the first conveyor line 610. The second transfer lifting component has a fourth fixed end and a second lifting end. The fourth fixed end is disposed between the first conveyor line 610 and the material storage component 1400. The second lifting end is connected to the third fixed end of the second transfer translation component and is used to drive the second movable body 1352 and at least one third clamping component 1353 to move up and down relative to the first conveyor line 610.

[0098] By setting up a second transfer translation component and a second transfer lifting component, the second movable body 1352 and the third clamping component 1353 can be moved up and down or horizontally relative to the second support 1351, so that the third clamping component 1353 can move closer to or away from the material storage component 1400, so that the third clamping component 1353 can stably clamp the material. At the same time, the third clamping component 1353 can move closer to or away from the second flipping component 1360, so that the third clamping component 1353 can be stably placed on the second flipping component 1360. Here, the second transfer translation component and the second transfer lifting component are common and readily available structures of the third movable body 1120 in the market. The slide structure can drive the second movable body 1352 to move up and down or horizontally relative to the second support 1351. The structure of the third movable body 1120 here is a conventional setting known to those skilled in the art, and will not be described in detail here.

[0099] In one embodiment, such as Figure 16 As shown, the second flipping component 1360 includes a third support 1361, at least one fourth clamping member 1362, and a first flipping drive motor. The third support 1361 is disposed on one side of the first conveyor line 610. The fourth clamping member 1362 includes two first flipping clamping blocks, which are disposed opposite to each other and are slidably connected to the third support 1361 to form an adjustable first flipping clamping gap. After the two first flipping clamping blocks slide close to each other, they can abut against the two side walls of the material to receive the material in a vertical state. The first flipping drive motor is connected to the third support 1361 and is used to drive the third support 1361 and at least one fourth clamping member 1362 to rotate relative to the first conveyor line 610 by a preset angle so that the material is in a horizontal state.

[0100] A fourth clamping member 1362 is provided on the third bracket 1361 relative to the third clamping member 1353. The third clamping member 1353 and the fourth clamping member 1362 can clamp the two ends of the battery cell 500 respectively, effectively ensuring the stability of material transfer and reception. The first flipping drive motor here is a servo motor or stepper motor that is common and easy to purchase on the market. The servo motor here can be adapted to high-precision flipping of the battery cell, fixed-point start and stop, multi-station linkage, and can accurately control the angle, speed, acceleration and deceleration. It is adapted to the scanning of the battery cell 500, appearance inspection, electrode processing, and flipping before and after liquid injection. This is a conventional setting known to those skilled in the art, and will not be described in detail here.

[0101] In some embodiments, when the third clamping member 1353 clamps the material and moves it horizontally above the fourth clamping member 1362, the fourth clamping member 1362 first unfolds and then closes. At this time, the third clamping member 1353 and the fourth clamping member 1362 respectively clamp the two ends of the battery cell 500. Subsequently, the third clamping member 1353 is released, and the battery cell 500 is received by the fourth clamping member 1362. This will not be described in detail here. A material-stopping structure is provided on one side of the fourth clamping member 1362, so that after the fourth clamping member 1362 drives the material to flip over... In one embodiment, such as Figures 14 to 16 As shown, the first conveyor line 610 is provided with a plurality of storage trays 611. Each storage tray 611 has a storage groove, and one side wall of the storage groove is connected to its interior. The second flipping component 1360 also includes a pusher 1364. The pusher 1364 includes at least one push block and at least one first drive unit. The push block is disposed relative to the first flipping clamping gap and is movably connected to the third bracket 1361. The first drive unit is connected to the third bracket 1361 and the push block. After the first flipping clamping gap is aligned with the storage groove, the first drive unit can drive the push block to slide close to the horizontal material and push the horizontal material into the storage groove.

[0102] By setting the pusher 1364, when the second flipping component 1360 flips the material to be flush with the plane of the tray 611, the pusher 1364 pushes the battery cell 500, which can be pushed into the opening of the storage tray 611, thereby smoothly completing the transfer of the battery cell 500. Here, the pusher 1364 includes at least one push block and at least one first drive unit. The push block is set relative to the fourth clamping component 1362 and can slide relative to the third bracket 1361. The first drive unit is a linear drive structure that is common in the market and easy to purchase. The first drive unit drives the push block to push the material onto the storage tray 611.

[0103] In some embodiments, the first drive unit is a linear drive structure such as a cylinder, hydraulic cylinder, or ball screw nut pair, which are common and readily available on the market and will not be described in detail here.

[0104] In some embodiments, the storage tray 611 includes a support base and four flexible limiting blocks to enclose and form a storage slot, which will not be described in detail here.

[0105] In one embodiment, such as Figure 14 , Figure 18 As shown, the third detection component 1100 includes two detection elements 1130. The two detection elements 1130 are arranged opposite to each other on both sides of the first conveyor line 610 and together form a detection channel for material to pass through. The detection elements 1130 are movable relative to the first conveyor line 610.

[0106] In order to inspect the quality of the burrs on the surface of the battery cell 500 after the burr rolling process, an inspection component 1130 is also provided behind the first conveyor line 610. The inspection component 1130 is a 2D area array industrial vision inspection system or a 3D line laser contour scanner that is common and easy to purchase on the market. The inspection component 1130 is a conventional setting known to those skilled in the art, and will not be described in detail here.

[0107] In one embodiment, such as Figure 15 , Figures 19 to 24 As shown, the third detection component 1100 also includes at least one third flipping member 1150. The third flipping member 1150 is disposed on the conveying path of the first conveyor line 610. The third flipping member 1150 includes two fifth clamping members 1140 and two second flipping drive units. The two fifth clamping members 1140 are disposed opposite to each other on both sides of the first conveyor line 610. The two fifth clamping members 1140 can simultaneously clamp or release materials. The second flipping drive units are respectively connected to the two fifth clamping members 1140 and are used to drive the two fifth clamping members 1140 and the materials to flip by a preset angle.

[0108] Since the material continues to move along the direction of the first conveyor line 610 after the deburring process is completed, and the detector 1130 can only detect the deburring quality on one side of the material when the material passes under the detector 1130, a third flipping component 1150 is also required. The third flipping component 1150 drives the material to flip 180°, so that the detector 1130 can only detect the deburring quality on the other side of the material. The fifth clamping component 1140 is a common and readily available assembly line robot, such as a standard parallel pneumatic gripper or an electric servo gripper. This is a conventional setting known to those skilled in the art and will not be described in detail here.

[0109] In some embodiments, the second flipping drive unit is a servo motor or stepper motor that is common in the market and easy to purchase. Here, the servo motor can be adapted to high-precision flipping of the battery cell, fixed-point start and stop, multi-station linkage, and can accurately control the angle, speed, acceleration and deceleration. It is adapted to 500 barcode scanning of the battery cell, appearance inspection, electrode processing, and flipping before and after liquid injection. This is a conventional setting known to those skilled in the art, and will not be described in detail here.

[0110] In some embodiments, the third detection component 1100 further includes a fourth support 1110 and a third movable body 1120. The fourth support 1110 is used to support and connect the detection component 1130. When the third flipping component 1150 drives the material to flip 180°, the third movable body 1120 can drive the detection component 1130 to move horizontally above the flipped material to achieve secondary detection. Here, the structure of the third movable body 1120 can drive the second movable body 1352 to move vertically or horizontally relative to the fourth support 1110. The structure of the third movable body 1120 is a conventional setting known to those skilled in the art and will not be described in detail here.

[0111] In some embodiments, after the burr rolling and burr quality inspection are completed, the material after the end cap welding can proceed to the next process, which will not be elaborated here.

[0112] In some embodiments, the detection mechanism also includes multiple sensors spaced apart along the setting direction of the first conveyor line 610, used to detect the position of the material relative to the first conveyor line 610, and to control the rolling edge assembly 1000 and the third detection assembly 1100 to perform corresponding actions in real time, so as to realize automated and intelligent production. The sensors here are common and readily available position sensors on the market, which are conventional settings known to those skilled in the art and will not be described in detail here.

[0113] In this embodiment, as Figure 23 As shown, the testing mechanism also includes at least one sixth clamping member 1150, which is movably connected to the rotating disk and forms a material fixing gap for clamping or releasing materials. The sixth clamping member 1150 can pass through the pre-clamping assembly 700 and the short-circuit test assembly 800 in sequence.

[0114] By setting a sixth clamping member 1150 on the turntable, the battery cell 500 can be clamped or released, so that the battery cell 500 can rotate with the turntable. After the sixth clamping member 1150 rotates with the turntable, it can pass through the loading station, the pre-clamping station, the short-circuit test station and the marking station in sequence to realize the processing and production of different processes.

[0115] In some embodiments, the sixth clamping member 1150 includes at least two fixed clamping blocks spaced apart from each other. The fixed clamping blocks can slide relative to the rotating body and form a material fixing gap. The at least two fixed clamping blocks move closer or further apart to adjust the size of the material fixing gap. In order to achieve synchronous clamping or release of multiple materials, there are multiple fixed clamping blocks. The multiple fixed clamping blocks are spaced apart from each other. Under the drive of a linear drive structure such as a cylinder or a linear motor, the multiple fixed clamping blocks can move closer or further apart synchronously to achieve synchronous clamping of multiple materials.

[0116] In some embodiments, in order to improve production efficiency, the number of the sixth clamping member 1150 on the rotating disk is four, which will not be described in detail here.

[0117] In one embodiment, such as Figure 24 , Figure 20 As shown, at least two fixed clamping blocks can abut against multiple materials and adjust the pressure applied to the material surface for pre-clamping.

[0118] The pre-clamping station is located below the loading station. When the fixed clamping block carries the battery cell 500 and rotates with the turntable to the pre-clamping station, at least two fixed clamping blocks can come into contact with multiple materials and adjust the pressure acting on the material surface for pre-clamping. By adjusting the pressure of the fixed clamping block acting on the material surface, the sixth clamping member 1150 can perform pre-clamping of the material. Furthermore, by directly controlling the pressure of the fixed clamping block acting on the material surface, material transfer and secondary clamping can be avoided.

[0119] In one embodiment, such as Figure 23 , Figure 24 and Figures 19 to 21 As shown, the testing mechanism also includes a fifth support 1130, a hopper 1140, and an alignment component. The hopper 1140 is mounted above at least two fixed clamping blocks and is supported on a rotating disk via the fifth support 1130. The first clamping component 1310 can feed materials into the fixed material gap. The alignment component is configured to push at least one material to abut against the inner wall of the hopper 1140. The fifth support 1130 is used to support and connect the hopper 1140, the alignment component, the pre-clamping station pressure sensor, the short-circuit test component 800, and the marking component. The fifth support 1130 has a gantry-type support structure.

[0120] In some embodiments, the fifth support 1130 includes multiple pillars and beams, with the beams spanning across the top of the rotating disk and supported and connected by the multiple pillars.

[0121] In some embodiments, the hopper 1140 is mounted above at least two fixed clamping blocks and connected to the fifth bracket 1130. One side of the hopper 1140 has an opening communicating with its interior. The first clamping component 1310 can feed material into the material fixing gap through the opening. The alignment component is disposed relative to the inner wall of the hopper 1140 and is slidably connected to the hopper 1140 to push at least one material to abut against the inner wall of the hopper 1140. By setting the alignment component, multiple materials can be aligned, thereby effectively ensuring the accuracy of subsequent pre-clamping, short-circuit testing and marking.

[0122] In some embodiments, the alignment member includes an alignment block and a linear drive structure. The alignment block is disposed relative to the inner wall of the hopper 1140. When the first clamping member 1310 puts the material into the hopper 1140, the linear drive structure can push the alignment block to slide close to multiple materials, so that multiple materials are aligned with the inner wall of the hopper 1140. Furthermore, the side wall of the hopper 1140 is also provided with a connecting groove, so that the sixth clamping member 1150 or the material can enter the hopper 1140 or pass through the hopper 1140 through the connecting groove. This will not be described in detail here.

[0123] In addition, in some embodiments, electromagnets are provided on opposite sides of the two fixed clamping blocks to improve the stability of the fixed clamping blocks in clamping the material; an elastic structure is also provided between two adjacent fixed clamping blocks. The elastic structure can effectively adjust the pressure acting on the surface of different materials, so that multiple materials are pre-clamped synchronously and the pressure acting on their surfaces is uniform. This will not be elaborated here.

[0124] In this embodiment, as Figures 19 to 21 As shown, the first clamping component 1310 includes a first movable body 1312 and at least one first clamping member 1313. The first movable body 1312 is capable of translation and lifting relative to the first conveyor line 610. The first clamping member 1313 includes at least two second transfer clamping blocks that are arranged opposite to each other and slidably connected to the first movable body 1312. The at least two second transfer clamping blocks are capable of rotating and moving into the hopper 1140.

[0125] The first movable body 1312 is movably disposed between the first conveyor line 610 and the rotating disk, and is used to drive the first clamping member 1313 to move closer to or away from the first conveyor line 610 or the rotating disk, thereby cooperating to transfer the square material from the first conveyor line 610 to the sixth clamping member 1150 and the rotating disk; the first clamping member 1313 is composed of at least two second transfer clamping blocks and a linear drive structure. Under the drive of the linear drive structure, at least two second transfer clamping blocks can move closer to or away from each other to achieve clamping or releasing of the material.

[0126] In addition, in some embodiments, the first clamping member 1313, the second clamping member 1322, the third clamping member 1353, the fourth clamping member 1362, the fifth clamping member 1140 and the sixth clamping member 1150 are all common and readily available assembly line robots on the market, such as standard parallel pneumatic grippers or electric servo grippers. These are conventional settings known to those skilled in the art and will not be described in detail here.

[0127] In some embodiments, the first clamping component 1310 further includes a first bracket 1311, which supports and connects the first movable body 1312 and facilitates the movement of the first movable body 1312 and the first clamping component 1313. Further, the first bracket 1311 includes multiple columns and a crossbeam, with the crossbeam spanning above the first conveyor line 610 and the rotating disk, forming support and connection through the multiple columns, and the first movable body 1312 being able to slide along the guide of the crossbeam or columns.

[0128] In some of these embodiments, such as Figures 19 to 21 As shown, the first clamping component 1310 also includes a first transfer lifting component and a first transfer translating component. The first transfer lifting component is configured to drive the first movable body 1312 and at least two second transfer clamping blocks to move up and down relative to the hopper 1140. The first transfer translating component is configured to drive the first transfer lifting component and the first movable body 1312 to move translating relative to the hopper 1140.

[0129] By setting a first transfer lifting component and a first transfer translating component, the lifting and horizontal movement of the first movable body 1312 and at least one first clamping component 1313 can be realized, thereby enabling the material to be transferred; furthermore, here the first transfer lifting component can drive the first movable body 1312 to lift and move along the setting direction of the column, and the first translating component can drive the first movable body 1312 to move horizontally along the setting direction of the crossbeam.

[0130] In some embodiments, the first transfer lifting component and the first transfer translation component are common and readily available electric slide structures on the market. The slide structure can drive the first movable body 1312 to move vertically or horizontally relative to the support frame. The electric slide structure here is a conventional configuration known to those skilled in the art and will not be described in detail here.

[0131] In one embodiment, such as Figure 19 As shown, the detection mechanism also includes a first flipping component 1320. The first flipping component 1320 has a flipping bracket 1321 and at least one second clamping member 1322. The flipping bracket 1321 is disposed between the first conveyor line 610 and the rotating disk. The second clamping member 1322 has a third clamping gap for clamping materials and can rotate relative to the flipping bracket 1321 by a preset angle so that the first clamping member 1313 can clamp the materials located in the third clamping gap.

[0132] Since the material on the first conveyor line 610 is transported horizontally and placed horizontally, while the material on the rotating disk is placed vertically, a first flipping component 1320 is also provided between the first conveyor line 610 and the rotating disk, which can realize the flipping of the material, so that the material is flipped from a horizontal state to a vertically placed state; furthermore, the second clamping component 1322 is used to clamp or release the material when receiving the material, and after the second clamping component 1322 rotates relative to the flipping bracket 1321, it drives the material to flip 90°.

[0133] In some embodiments, the first flipping component 1320 further includes a first flipping member 1323, which is connected to the flipping bracket 1321 and the second clamping member 1322. It is used to drive the second clamping member 1322 to rotate relative to the flipping bracket 1321 by a preset angle so that the first clamping member 1313 can clamp the material located in the third clamping gap.

[0134] In one embodiment, such as Figure 20 , Figure 23 As shown, the first flipping component 1320 also includes a first driving component 1330 and a second driving component 1340. The first driving component 1330 is configured to drive the material to rise and fall relative to the first conveyor line 610, and the second driving component 1340 is configured to drive the second clamping member 1322 to move closer to or away from the first conveyor line 610. The second clamping member 1322 can move to above the first conveyor line 610 to receive the material. By setting the first driving component 1330 and the second driving component 1340, the first driving component 1330 is configured to drive the material to rise and fall relative to the first conveyor line 610, and the second driving component 1340 is configured to drive the second clamping member 1322 to move closer to or away from the first conveyor line 610.

[0135] Furthermore, in order to smoothly transfer the material on the first conveyor line 610, the first drive component 1330 can push the material tray 611 on the first conveyor line 610 to rise relative to the first conveyor line 610, so that the material is suspended in the air. The second drive component 1340 can drive the second clamping member 1322 to extend relative to the flipping bracket 1321, and the second clamping member 1322 is located below the material. Then the first drive component 1330 drives the material to fall, so that the material falls on the second clamping member 1322, thus completing the smooth reception of the material.

[0136] In some embodiments, the first conveying line 610, the first flipping component 1320, and the first clamping component 1310 form a mutually cooperating receiving structure. For reference, see Chinese invention patent with publication number CN222860306U, entitled "A Conveying Stepping Line", which will not be described in detail here.

[0137] In one embodiment, the short-circuit test assembly 800 includes at least one first electrode plate and at least one second electrode plate. The first electrode plate and the second electrode plate are respectively disposed on opposite sides of the material and can abut against the positive or negative electrode of the material. The first electrode plate and the second electrode plate are electrically connected. By providing at least one first electrode plate and at least one second electrode plate, the positive and negative electrodes of the battery cell 500 can be respectively connected to achieve a short circuit, thereby realizing a short-circuit test. Furthermore, there are multiple first electrode plates and second electrode plates, which can realize the simultaneous short-circuit test of multiple battery cells 500.

[0138] In some embodiments, the short-circuit test assembly 800 further includes a short-circuit test clamping member, which includes at least two fourth clamping blocks and a linear drive structure. The first electrode sheet and the second electrode sheet are respectively disposed on opposite sides of the two fourth clamping blocks. The linear drive structure drives the first electrode sheet and the second electrode sheet disposed on the two fourth clamping blocks to move closer or further away synchronously. Furthermore, the first electrode sheet and the second electrode sheet are short-circuited to the battery cell 500 for short-circuit testing, which is a conventional setting known to those skilled in the art and will not be described in detail here.

[0139] In one embodiment, such as Figure 24 , ​ As shown, the testing mechanism also includes a coding assembly, which includes at least one barcode scanner and a coding component 920. The barcode scanner is positioned relative to the material and connected to the first conveyor line 610, while the coding component 920 is positioned relative to the material and connected to the fifth support 1130. By setting the scanner 910 on the first conveyor line 610, the QR code on the battery cell 500 can be identified and recorded, and the coding component 920 can be used to carve codes on the battery cell 500, so that the side wall of the battery cell 500 has multiple identifiable traceability codes. Furthermore, the scanner 910 and the coding component 920 are common and readily available equipment on the market, and are conventional settings known to those skilled in the art, and will not be described in detail here.

[0140] In some embodiments, a hopper 1140 is provided on one side of the rotating disk, and a standard battery cell 500 is placed in the hopper 1140. When the system is started, the first clamping component 1310 can move horizontally above the hopper 1140 and clamp multiple battery cells 500 onto the rotating disk. As the rotating disk rotates, the standard battery cell 500 passes through the hopper 1140, the pre-clamping station, the short-circuit test station and the marking station in sequence to realize the system's self-test.

[0141] This device, through the aforementioned structure, can solve the technical problem of low production efficiency of square battery cell welding top covers caused by the lack of integrated equipment capable of simultaneously completing continuous automatic welding and post-weld inspection in the existing technology.

[0142] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A welding device for welding the top cover of a square battery cell, characterized in that, include: The material receiving mechanism is configured to store materials; At least one welding mechanism is connected to the material receiving mechanism and is configured to sequentially perform negative electrode top cover welding and positive electrode top cover welding on the material. The testing facility is configured to perform burr removal, burr detection, and short-circuit testing on the welded materials; and A material buffering mechanism includes a buffer circulation line, which is arranged along the length of the welding mechanism and spaced apart from it. The buffer circulation line has a feed end and a discharge end, and the feed end of the buffer circulation line is connected to the discharge end of the welding mechanism, while the discharge end can be connected to the feed end of the detection mechanism.

2. The square battery cell welding top cover welding device according to claim 1, characterized in that, The welding mechanism includes a first transfer component, at least one first welding component, a first flipping component, at least one second welding component, and a second transfer component arranged in sequence. The first transfer component is configured to transfer material from the material receiving mechanism to the first welding component. The first welding component is configured to weld the negative electrode top cover of the material. The first flipping component is configured to flip the material and transfer it to the second welding component. The second welding component is configured to weld the positive electrode top cover of the material. The second transfer component transfers the material to the buffer circulation line.

3. The square battery cell welding top cover welding device according to claim 2, characterized in that, The first rotating component or the second transfer component can respectively drive at least two materials to move closer or further apart, in order to cooperate with the first welding component or the second welding component to adjust the spacing between two adjacent materials.

4. The square battery cell welding top cover welding device according to claim 2, characterized in that, The welding mechanism further includes a first detection component and a second detection component. The first detection component is movably connected to the first flipping component and can slide relative to the first flipping component along its length direction for detecting the weld seam of the negative electrode top cover. The second detection component is movably connected to the second transfer component and can slide relative to the second transfer component along its length direction for detecting the weld seam of the positive electrode top cover.

5. The square battery cell welding top cover welding device according to claim 2, characterized in that, The buffer circulation line has a first discharge end and a second discharge end. The first discharge end of the buffer circulation line is connected to the feed end of the detection mechanism and is used to transport qualified materials after welding to the detection mechanism. The second discharge end of the buffer circulation line is used to recover unqualified materials after welding.

6. The square battery cell welding top cover welding device according to claim 5, characterized in that, The testing mechanism includes a first conveyor line, a second conveyor line, a edging assembly, a pre-clamping assembly, a short-circuit testing assembly, a coding assembly, and a third transfer assembly. The second conveyor line is spaced apart from the first conveyor line and is configured to convey materials. The edging assembly is located on the material conveying path of the first conveyor line and is configured to edge both ends of the material. The pre-clamping assembly, the short-circuit testing assembly, and the coding assembly are arranged sequentially along the material conveying direction of the second conveyor line. The pre-clamping assembly is configured to apply a pre-clamping force to the material. The short-circuit testing assembly is configured to perform a short-circuit test on the material. The coding assembly is configured to engrave a QR code on the surface of the material. The third transfer assembly is configured to transfer the material from the first conveyor line to the second conveyor line.

7. The square battery cell welding top cover welding device according to claim 6, characterized in that, The detection mechanism further includes a third detection component, which is spaced apart from the edging component on the material conveying path of the first conveyor line and is configured to detect the burr quality of the material.

8. The square battery cell welding top cover welding device according to claim 6, characterized in that, The square cell welding top cover welding device also includes a temporary storage device, which includes a temporary storage component and a fourth transfer component. The temporary storage component is located between the first discharge end of the buffer circulation line and the first conveyor line, and is connected to both the first discharge end of the circulation line and the first conveyor line. The fourth transfer component is spaced apart from the first conveyor line and is configured to flip the material from a vertical state to a horizontal state and then transfer it to the first conveyor line.

9. The square battery cell welding top cover welding device according to claim 6, characterized in that, The material conveying path of the second conveyor line is circular.

10. The square battery cell welding top cover welding device according to claim 1, characterized in that, The square battery cell welding top cover welding device has two welding mechanisms arranged side by side, with the feeding end of each welding mechanism connected to the discharging end of the receiving mechanism, and the discharging end of each welding mechanism connected to the feeding end of the buffer circulation line.

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