An assembling device and a welding equipment

Abstract

The present invention relates to an assembling device and a welding equipment. The assembling device includes a first support frame and a guiding block. The first support frame is used for carrying a top cover, and the guiding block is provided with a first positioning groove. When the top cover is carried on the first support position, the side of the guiding block with the first positioning groove is attached to the top cover pins of the top cover. The top surface of the guiding block has an insertion piece opening. When the battery cell group is transferred to the first support position, the connecting pieces on each battery cell of the battery cell group are inserted into the first positioning groove through the insertion piece opening. On the one hand, the guiding block is used to position the top cover pins of the top cover. On the other hand, the first positioning groove is used to position the connecting pieces. On the other hand, the first positioning groove exposes the connecting pieces, so that the connecting pieces are attached to the top cover pins, thereby avoiding the position deviation or self-deformation of the connecting pieces from affecting the assembling accuracy, that is, ensuring better assembling accuracy between the battery cell group and the top cover, and thus being beneficial to improving the welding quality.

Description

Technical Field

[0001] The present invention relates to the technical field of battery manufacturing equipment, and particularly to an assembling device and a welding device. Background Art

[0002] During the battery manufacturing process, it is necessary to combine two battery cells, that is, stack the two battery cells and weld the adapter pieces on the tab ears of each battery cell to the top cover pins on the top cover.

[0003] Before welding the adapter pieces on the tab ears of each battery cell to the top cover pins on the top cover, assembly is required. Since the assembly process of the adapter pieces on the tab ears of each battery cell and the top cover pins on the top cover has many and complex procedures, the adapter pieces on the tab ears of the battery cells are prone to position deviation or self-deformation during the complex assembly process, thereby affecting the assembly accuracy and further resulting in poor welding quality. Summary of the Invention

[0004] Based on this, in view of the problem in the prior art that since the assembly process of the adapter pieces on the tab ears of each battery cell and the top cover pins on the top cover has many and complex procedures, the adapter pieces on the tab ears of the battery cells are prone to position deviation or self-deformation during the complex assembly process, thereby affecting the assembly accuracy and further resulting in poor welding quality, it is necessary to provide an assembling device and a welding device that improve the above defects.

[0005] An assembling device includes a first support frame and a guide block. The first support frame has a first support position for carrying the top cover. The guide block is installed on the first support frame, and a first positioning groove is formed on one side facing the first support position.

[0006] When the top cover is carried on the first support position, the side of the guide block facing the first support position is in contact with the top cover pins of the top cover.

[0007] The top surface of the guide block has an insertion piece opening communicating with the first positioning groove. When the battery cell group is transported to the first support position, the adapter pieces on each battery cell of the battery cell group are inserted into the first positioning groove through the insertion piece opening.

[0008] The assembling device further includes a first clamping assembly for clamping the battery cell group to fix the battery cell group on the first support position of the first support frame.

[0009] In one embodiment, the top surface of the guide block is provided with a first chamfered slope disposed around the insertion piece opening.

[0010] In one embodiment, the inner wall of the first positioning groove has a plurality of protrusions, and the plurality of protrusions are arranged at intervals from each other to divide the first positioning groove into a plurality of sub-positioning grooves;

[0011] When the battery cell group is transferred to the first supporting position, the adapter plates on the respective battery cells of the battery cell group are inserted into the plurality of sub-positioning grooves one by one.

[0012] In one embodiment, the top end of each protrusion has two second chamfered inclined surfaces, and the two second chamfered inclined surfaces respectively face the two sub-positioning grooves adjacent to the protrusion where the protrusion is located.

[0013] In one embodiment, the assembly device further includes a first insert positioning assembly, the first insert positioning assembly including a first insert driving assembly, a first insert mounting seat and a first positioning insert;

[0014] The first plug-in drive assembly is mounted on the first support frame and is drivingly connected to the first plug-in mounting seat, and the first positioning plug-in is mounted on the first plug-in mounting seat;

[0015] The first insert blade driving assembly is configured to controllably drive the first insert blade mounting seat to move along the second horizontal direction, and drive the first positioning insert blade to be inserted into the side of the top cover pin of the top cover away from the guide block.

[0016] In one embodiment, the first plug drive assembly is further configured to controllably drive the first plug mounting seat to move along a first horizontal direction perpendicular to the second horizontal direction to adjust the position of the first positioning plug in the first horizontal direction.

[0017] In one embodiment, the assembly device further includes a second plug-in positioning assembly, and the second plug-in positioning assembly includes a second plug-in driving assembly, a second plug-in mounting seat and a second positioning plug-in;

[0018] The second plug-in drive assembly is mounted on the first support frame and is drivingly connected to the second plug-in mounting seat. The second positioning plug-in is mounted on the second plug-in mounting seat and is located on both sides of the first support position in the second horizontal direction with the first positioning plug-in respectively.

[0019] The second insert blade driving assembly is configured to controllably drive the second insert blade mounting seat to move along the second horizontal direction, and drive the second positioning insert blade to be inserted into the side of the top cover pin of the top cover away from the guide block.

[0020] In one embodiment, the second insert driving assembly is further configured to controllably drive the first insert mounting seat to move in a first horizontal direction perpendicular to the second horizontal direction, so as to adjust the position of the second positioning insert in the first horizontal direction.

[0021] In one embodiment, the assembling device further includes a first clamping assembly, and the first clamping assembly includes a clamping driving assembly and two first clamping blocks;

[0022] The clamping driving assembly is mounted on the first support frame, and the two first clamping blocks are respectively located on both sides of the first support position in the second horizontal direction, and are both drivingly connected to the clamping driving assembly, so as to be driven by the clamping driving assembly to approach or separate from each other.

[0023] A welding device includes the assembling device according to any one of the above embodiments.

[0024] In actual use of the above-mentioned assembling device and welding device, first, the top cover is transported to the first support position, so that the top cover pins of the top cover are positioned by using the guiding blocks, that is, the top cover pins of the top cover are attached to the side of the guiding block having the first positioning groove. Then, the battery cell group is transported onto the top cover, so that the connecting pieces on each battery cell of the battery cell group are inserted into the first positioning groove of the guiding block through the insert opening. On the one hand, the first positioning groove positions the connecting piece; on the other hand, the first positioning groove exposes the connecting piece, so that the connecting piece is attached to the top cover pin, thereby avoiding the position deviation or self-deformation of the connecting piece and affecting the assembling accuracy, that is, ensuring better assembling accuracy between the battery cell group and the top cover, which is beneficial to improving the welding quality. Description of the Drawings

[0025] Figure 1 The front view of the tab folding device in an embodiment of the present invention;

[0026] Figure 2 is Figure 1 The top view of the tab folding device shown;

[0027] Figure 3 is Figure 1 The side view of the tab folding device shown;

[0028] Figure 4 The front view of the battery cell before tab folding;

[0029] Figure 5 is Figure 4 The side view of the battery cell before tab folding shown;

[0030] Figure 6 is Figure 4 The top view of the battery cell before tab folding shown;

[0031] Figure 7 The front view of the battery cell after tab folding;

[0032] Figure 8 The side view of the battery cell after tab folding;

[0033] Figure 9 The top view of the battery cell after tab folding;

[0034] Figure 10 is Figure 1 The front view of the tab folding assembly and the adjustment assembly of the tab folding device shown;

[0035] Figure 11 is Figure 1 The front view of the first transfer mechanism of the tab folding device shown;

[0036] Figure 12 is Figure 11 The top view of the first transfer mechanism shown;

[0037] Figure 13 is Figure 11 The side view of the first transfer mechanism shown;

[0038] Figures 14a to 14b Respectively are Figure 11 The structural schematic diagrams of two third clamping blocks of the first transfer mechanism shown;

[0039] Figure 15 The front view of the stacking and flipping device in an embodiment of the present invention;

[0040] Figure 16 is Figure 15 The top view of the stacking and flipping device shown;

[0041] Figure 17 is Figure 15 The side view of the stacking and flipping device shown;

[0042] Figure 18 The partial structural schematic diagram of the second transfer mechanism in an embodiment of the present invention;

[0043] Figure 19 is Figure 18 The side view of the second transfer mechanism shown;

[0044] Figure 20 is Figure 18 The side view of the second positioning block of the second transfer mechanism shown;

[0045] Figure 21 The front view of the assembling device in an embodiment of the present invention;

[0046] Figure 22 The top view of the assembly device shown in Figure 21 Figure

[0047] Figure 23 The side view of the assembly device shown in Figure 21 Figure

[0048] Figure 24 The partial structural schematic diagram of the assembly device shown in Figure 22 Figure

[0049] Figure 25 The front view of the top cover in an embodiment of the present invention;

[0050] Figure 26 The perspective view of the guide block of the assembly device shown in Figure 21 Figure

[0051] Figure 27 The front view of the guide block shown in Figure 26 Figure

[0052] Figure 28 The top view of the guide block shown in Figure 27 Figure Specific Embodiments

[0053] To make the above objects, features, and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0054] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0055] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0056] In the present invention, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "connected to", "fixed" and the like should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0058] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation manner.

[0059] Please refer to Figure 1 、 Figure 15 、 Figure 21 An embodiment of the present invention provides a welding device, which is used to fold the tab A2 of the battery cell A1 at the tab folding station, stack a plurality of battery cells A1 at the stacking station to form a battery cell group A4, and flip the battery cell group A4, and assemble the battery cell group A4 with the top cover B1 at the assembly station. After the assembly is completed, the adapter plate A3 on the tab A2 of each battery cell A1 of the battery cell group A4 is welded to the top cover pin B2 on the top cover B1.

[0060] The welding equipment includes an ear folding device 1 (see Figure 1 ), a stacking and flipping device (not labeled in the figure), an assembling device 4 (see Figure 21 ), and a welding device (not shown in the figure). Please refer to Figure 1 As shown, the ear folding device 1 is arranged at the ear folding station and includes an ear folding mechanism 10 and a first transfer mechanism 20. The ear folding mechanism 10 is used to carry the battery cell A1 and fold the ear A2 of the battery cell A1 so that the adapter plate A3 follows the ear A2 and folds to be parallel to the end face of the battery cell A1, facilitating the tight fit between the adapter plate A3 and the lid pin B2 on the lid B1 during subsequent assembly with the lid B1. The first transfer mechanism 20 is used to transfer the battery cell A1 on the ear folding mechanism 10 to the stacking station.

[0061] Please refer to Figure 15 As shown, the stacking and flipping device is arranged at the stacking station and includes a stacking and flipping mechanism 30 and a second transfer mechanism (not shown in the figure). The stacking and flipping mechanism 30 is used to carry a plurality of battery cells A1 sequentially transferred by the first transfer mechanism 20, stack the plurality of battery cells A1 to form a battery cell group A4, and flip the battery cell group A4 so that each battery cell A1 of the battery cell group A4 is flipped from the vertical stacking state where they are stacked vertically in sequence to the horizontal stacking state where they are stacked horizontally in sequence. The second transfer mechanism is used to transfer the battery cell group A4 in the horizontal stacking state to the assembling station.

[0062] Please refer to Figure 21 As shown, the assembling device 4 is arranged at the assembling station. The assembling device 4 is used to carry the lid B1 and the battery cell group A4 (in the horizontal stacking state) transferred by the second transfer mechanism, so that the lid pin B2 on the lid B1 is in contact with the adapter plate A3 on the ear A2 of each battery cell A1 of the battery cell group A4, facilitating subsequent welding. The welding device is used to weld the lid pin B2 on the lid B1 and the adapter plate A3 on the ear A2 of each battery cell A1 on the assembling device 4.

[0063] For the above-mentioned welding equipment, during actual use, first, (please refer to Figures 4 to 6 the state of the ear A2 before folding as shown, and Figures 7 to 9The tab A2 of the battery cell A1 in the shown state after being folded is carried on the tab folding mechanism 10, and the tab A2 of the battery cell A1 is folded upward by 90° by using the tab folding mechanism 10, so that the adapter plate A3 on the tab A2 is parallel to the end face of the battery cell A1. After the tab folding is in place, the first transfer mechanism 20 transfers the battery cell A1 to the stacking and flipping mechanism 30 at the stacking station for stacking. Each battery cell A1 stacked on the stacking and flipping mechanism 30 forms a battery cell group A4. When a sufficient number of battery cells A1 are stacked on the stacking and flipping mechanism 30, the stacking and flipping mechanism 30 flips the battery cell group A4 by 90°, so that the battery cell group A4 is flipped from the vertical stacking state to the horizontal stacking state.

[0064] The assembly device 4 carries the top cover B1. After the flipping is in place, the second transfer mechanism transfers the battery cell group A4 to the top cover B1 on the assembly device 4 at the assembly station, so that the top cover pins B2 of the top cover B1 are attached to the adapter plates A3 on the tabs A2 of each battery cell A1 of the battery cell group A4, that is, the assembly of the battery cell group A4 and the top cover B1 is completed. After the assembly is in place, the welding device welds the top cover pins B2 and the respective adapter plates A3 attached to the top cover pins B2.

[0065] In this way, the welding equipment of the present invention completes the folding of the tab A2, the stacking of the battery cell A1, the flipping of the battery cell group A4, the assembly and welding of the battery cell group A4 and the top cover B1 through the tab folding device 1, the stacking and flipping device, the assembly device 4 and the welding device, thereby simplifying the process, reducing the process difficulty, having a high degree of automation, reducing the labor cost, and having high stability of product quality.

[0066] Specifically in the embodiment, the welding equipment further has a loading device (not shown in the figure), and this loading device is used to transport the battery cell A1 at the battery cell loading station to the tab folding mechanism 10 at the tab folding station. Further, the welding equipment also has an inspection station. The loading device first transports the battery cell A1 at the battery cell loading station to the inspection station to inspect the battery cell A1. When the battery cell A1 is unqualified, the unqualified battery cell A1 is transported to the unloading conveyor belt, and when the battery cell A1 is qualified, the qualified battery cell A1 is transported to the tab folding mechanism 10 at the tab folding station.

[0067] It should be noted that the specific structure of the loading device is not limited herein as long as it can realize the transportation of the battery cell A1.

[0068] Please refer to Figures 1 to 3As shown, in an embodiment of the present invention, the tab folding mechanism 10 includes a carrying component 11 and a tab folding component 12. The carrying component 11 is used to carry the battery cell A1, and the tab folding component 12 includes a base 121, a lifting frame 122, and a folding roller 123. The lifting frame 122 is connected to the base 121 in a controllable lifting manner, that is, the lifting of the lifting frame 122 relative to the base 121 can be controlled to rise or fall. The folding roller 123 is rotatably connected to the lifting frame 122, so that the folding roller 123 rises or falls together with the lifting frame 122. Among them, during the process of the lifting frame 122 driving the folding roller 123 to rise, the folding roller 123 can push against the tab A2 of the battery cell A1 to bend upward until the tab A2 is folded upward by 90°.

[0069] In this way, after the battery cell A1 is placed on the carrying component 11, the lifting frame 122 drives the folding roller 123 to rise, so that the folding roller 123 contacts the tab A2 of the battery cell A1 until the folding roller 123 pushes the tab A2 upward to be folded by 90°. After the tab A2 of the battery cell A1 is folded in place, the lifting frame 122 drives the folding roller 123 to descend until it returns to the initial position.

[0070] Further, the tab folding component 12 further includes a folding lifting driving member 124 installed on the base 121, and the folding lifting driving member 124 is drivingly connected to the lifting frame 122 to drive the lifting frame 122 to rise or fall. Optionally, the folding lifting driving member 124 can be a cylinder.

[0071] Please refer to Figure 10 As shown, specifically in the embodiment, the tab folding mechanism 10 further includes an adjustment component 13, and the adjustment component 13 is used to position the adapter piece A3 on the tab A2 after the tab A2 is folded, that is, to calibrate the position of the adapter piece A3 relative to the tab A2, so as to eliminate the position deviation generated by the adapter piece A3 during the folding process of the tab A2.

[0072] The adjustment component 13 includes a driving component 131 and a fourth clamping component (not shown in the figure). The fourth clamping component is installed at the driving end of the driving component 131 to be driven by the driving component 131 to approach or move away from the adapter piece A3 on the tab A2 of the battery cell A1. The fourth clamping component has two relatively arranged sixth clamping blocks 132, and fourth positioning grooves 133 are provided on the side surfaces of the two sixth clamping blocks 132 facing each other. Among them, when the driving component 131 drives the fourth clamping component to move until the adapter piece A3 enters between the two sixth clamping blocks 132, the fourth clamping component can control the two sixth clamping blocks 132 to close together so that the adapter piece A3 enters the fourth positioning grooves 133 of the two sixth clamping blocks 132, thereby positioning the adapter piece A3 by using the fourth positioning grooves 133 on the two sixth clamping blocks 132.

[0073] Thus, after the tab A2 is folded in place, the driving component 131 drives the fourth clamping component to move close to the adapter piece A3 on the tab A2 of the battery cell A1 until the adapter piece A3 is located between the two sixth clamping blocks 132 of the fourth clamping component. Then, the fourth clamping component controls the two sixth clamping blocks 132 to close towards each other, so that the adapter piece A3 enters the fourth positioning groove 133 of the two sixth clamping blocks 132. After the positioning of the adapter piece A3 is completed, the fourth clamping component controls the two sixth clamping blocks 132 to open away from each other. Then, the driving component 131 drives the fourth clamping component to move away from the adapter piece A3 on the tab A2 of the battery cell A1 until it returns to the initial position.

[0074] Optionally, the driving component 131 can drive the fourth clamping component to move along the first horizontal direction X, so as to be close to or away from the adapter piece A3 on the tab A2 of the battery cell A1. The two sixth clamping blocks 132 are arranged opposite to each other in the vertical direction, so as to clamp the adapter piece A3 in the vertical direction. Wherein, the first horizontal direction X is parallel to the length direction of the battery cell A1 carried on the carrying component 11.

[0075] It should be noted that both longitudinal ends of the battery cell A1 have tabs A2, and each tab A2 also has an adapter piece A3. Specifically, in one embodiment, there are two tab folding components 12 and two adjustment components 13. The two tab folding components 12 are respectively arranged on both sides of the carrying component 11 in the first horizontal direction X, so as to respectively fold the tabs A2 at both longitudinal ends of the battery cell A1 on the carrying component 11 by using the two tab folding components 12. The two adjustment components 13 are also respectively arranged on both sides of the carrying component 11 in the first horizontal direction X, so as to respectively position the adapter pieces A3 on the tabs A2 at both longitudinal ends of the battery cell A1 on the carrying component 11 by using the two adjustment components 13.

[0076] Please continue to refer to Figures 1 to 3 As shown, in the embodiment of the present invention, the carrying component 11 includes a third support frame 110, a first positioning driving member 112, a first positioning member 114 and a second positioning member 116. The third support frame 110 has a third support position (not marked in the figure) for supporting the battery cell A1. The first positioning driving member 112 is installed on the third support frame 110. The first positioning member 114 and the second positioning member 116 are located on both sides of the third support position in the third horizontal direction Y, and are both drivingly connected to the first positioning driving member 112. The first positioning driving member 112 can drive the first positioning member 114 and the second positioning member 116 to approach or move away from each other, so as to clamp or release the battery cell A1 on the third support position. Thus, after the battery cell A1 is placed on the third support position, the first positioning driving member 112 drives the first positioning member 114 and the second positioning member 116 to approach each other along the third horizontal direction Y until the battery cell A1 on the third support position is clamped along the third horizontal direction Y. Optionally, the first positioning driving member 112 can be a pneumatic claw.

[0077] Specifically in the embodiment, the carrier assembly 11 further includes an adjustment drive assembly (not shown in the figure) drivingly connected to the third support frame 110. The adjustment drive assembly is used to drive the third support frame 110 to move along the first horizontal direction X. Among them, the first horizontal direction X is perpendicular to the third horizontal direction Y. Thus, when the battery cell A1 is placed on the third support position of the third support frame 110, first, the first positioning drive member 112 drives the first positioning member 114 and the second positioning member 116 to close together until the battery cell A1 is clamped along the third horizontal direction Y, that is, the battery cell A1 is positioned in the third horizontal direction Y. Then, the third support frame 110 is driven by the adjustment drive assembly to move along the first horizontal direction X, so as to adjust the position of the battery cell A1 on the third support position in the first horizontal direction X. After the adjustment is in place, the tab folding assembly 12 is used to fold the tabs A2 of the battery cell A1, and after folding, the adjustment assembly 13 is used to position the adapter plate A3 on the tabs A2.

[0078] Please refer to Figures 11 to 1 As shown in FIG. 4, in the embodiment of the present invention, the first transfer mechanism 20 includes a mounting base 21 and a second clamping assembly 22 and a first positioning piece 23 mounted on the mounting base 21. The mounting base 21 can be controllably moved between the tab folding station and the stacking station, and can be controllably raised or lowered. The second clamping assembly 22 has two relatively arranged second clamping blocks 221. When the mounting base 21 moves to the tab folding station, the mounting base 21 is located above the carrier assembly 11, and during the process of the mounting base 21 descending, the first positioning piece 23 can be inserted between the battery cell A1 and the adapter plate A3 on the battery cell A1, and the second clamping assembly 22 can control the two second clamping blocks 221 to clamp the battery cell A1.

[0079] Thus, when it is necessary to bend the tabs A2 of the battery cell A1 on the third support frame 110, first, the mounting base 21 is controlled to move to the tab folding station. Then, the mounting base 21 is controlled to descend, so as to drive the second clamping assembly 22 and the first positioning piece 23 to move towards the battery cell A1 on the third support frame 110 until the battery cell A1 is located between the two second clamping blocks 221, and the first positioning piece 23 is inserted between the battery cell A1 and the adapter plate A3. Then, the tab folding mechanism 10 is used to fold the tabs A2 of the battery cell A1, so that the adapter plate A3 on the tabs A2 can be positioned by the first positioning piece 23, so that the adapter plate A3 can follow the tabs A2 to be folded in place.

[0080] When it is necessary to transfer the battery cell A1 on the third support frame 110 to the stacking station, the second clamping assembly 22 controls the two second clamping blocks 221 to clamp the battery cell A1, and controls the mounting base 21 to rise to the initial position. Finally, the mounting base 21 is controlled to move to the stacking station and release the battery cell A1 to the stacking station.

[0081] It should be noted that when folding the tab A2 on the battery cell A1, the first positioning piece 23 inserted between the battery cell A1 and the adapter piece A3 on the battery cell A1 is used to position the adapter piece A3, which is beneficial to improving the position accuracy of the adapter piece A3 and further enhancing the welding quality.

[0082] Specifically in the embodiment, the first transfer mechanism 20 further includes a first moving driving component (not shown in the figure), and the first moving driving component is drivingly connected to the mounting seat 21 to drive the mounting seat 21 to move between the tab folding station and the stacking station, and also drive the mounting seat 21 to rise or fall. It should be noted that the first moving driving component can adopt relatively mature existing technologies as long as it can drive the mounting seat 21 to move between the tab folding station and the stacking station and also drive the mounting seat 21 to rise or fall, and no limitation is made here.

[0083] Specifically in the embodiment, the second clamping component 22 further has two oppositely arranged third clamping blocks 222. When the second clamping component 22 controls the two second clamping blocks 221 to clamp the battery cell A1, the second clamping component 22 can control the two third clamping blocks 222 to clamp the adapter piece A3 on the tab A2 of the battery cell A1. In this way, the two third clamping blocks 222 are used to clamp the adapter piece A3, so as to realize the positioning of the adapter piece A3 and further avoid the position deviation of the adapter piece A3 during the transfer process.

[0084] Optionally, the two second clamping blocks 221 are arranged oppositely along the third horizontal direction Y, and the two third clamping blocks 222 are arranged oppositely along the third horizontal direction Y. Wherein, the third horizontal direction Y is parallel to the width direction of the battery cell A1 carried on the carrying component 11. In this way, the two second clamping blocks 221 are used to clamp the battery cell A1 along the third horizontal direction Y (i.e., the width direction of the battery cell A1), and at the same time, the two third clamping blocks 222 are also used to clamp the adapter piece A3 along the third horizontal direction Y.

[0085] Specifically in the embodiment, the second clamping component 22 includes a second clamping driving part 223, a first moving block 224 and a second moving block 225 connected to the driving end of the second clamping driving part 223. The second clamping driving part 223 is used to drive the first moving block 224 and the second moving block 225 to approach or separate from each other.

[0086] The two second clamping blocks 221 are respectively connected to the first moving block 224 and the second moving block 225, and thus move closer to or away from each other following the first moving block 224 and the second moving block 225. The two third clamping blocks 222 are respectively connected to the first moving block 224 and the second moving block 225, and thus move closer to or away from each other following the first moving block 224 and the second moving block 225. In this way, when it is necessary to clamp the battery cell A1, the second clamping driving member 223 drives the first moving block 224 and the second moving block 225 to move closer to each other, thereby driving the two second clamping blocks 221 to move closer to each other until clamping the battery cell A1, and at the same time also driving the two third clamping blocks 222 to move closer to each other until clamping the adapter piece A3. Optionally, the second clamping driving member 223 can adopt a pneumatic claw.

[0087] Further, the first moving block 224 can be arranged on the mounting seat 21 through a slider and a slide rail, so as to guide the movement of the first moving block 224 relative to the mounting seat 21 through the slider and the slide rail. Similarly, the second moving block 225 can also be arranged on the mounting seat 21 through a slider and a slide rail, so as to guide the movement of the second moving block 225 relative to the mounting seat 21 through the slider and the slide rail.

[0088] Specifically in the embodiment, the lower side of the mounting seat 21 has an adsorption surface 211 for adsorbing the battery cell A1, so that when transporting the battery cell A1, the second clamping assembly 22 can be used to clamp the battery cell A1 while the adsorption surface 211 on the mounting seat 21 is used to adsorb and fix the battery cell A1, thereby ensuring stable and reliable grasping of the battery cell A1 during transportation and avoiding the battery cell A1 from falling midway or the parameter position shifting.

[0089] Optionally, the adsorption surface 211 can adopt negative pressure adsorption. For example, a plurality of adsorption holes communicating with an external negative pressure source are opened on the adsorption surface 211, and negative pressure is generated in the adsorption holes, thereby generating an adsorption force on the battery cell A1. Of course, in other embodiments, suction cups can also be arranged on the adsorption surface 211 to adsorb the battery cell A1 by using the suction cups.

[0090] Specifically in the embodiment, second positioning grooves 2221 are formed on the side surfaces of the two third clamping blocks 222 facing each other (see FIG. 14). When the second clamping assembly 22 controls the two second clamping blocks 221 to clamp the adapter piece A3 on the tab A2 of the battery cell A1, the adapter piece A3 enters the second positioning grooves 2221 of the two third clamping blocks 222, thereby realizing the positioning of the adapter piece A3. In this way, forming the second positioning grooves 2221 for accommodating the adapter piece A3 on the two third clamping blocks 222 is beneficial to improving the positioning effect of the adapter piece A3 and improving the positioning accuracy.

[0091] It should be noted that both ends of the battery cell A1 have tabs A2, and each tab A2 has a transfer piece A3. In order to position the transfer pieces A3 at both ends of the battery cell A1 during transportation, in one embodiment, second clamping components 22 and first positioning pieces 23 are provided at both ends of the mounting seat 21 along the first horizontal direction X, and the first horizontal direction X is parallel to the longitudinal direction of the battery cell A1 carried on the carrying component 11. In this way, the transfer piece A3 at one end of the battery cell A1 is positioned by the second clamping component 22 and the first positioning piece 23 at one end of the mounting seat 21, and the transfer piece A3 at the other end of the battery cell A1 is positioned by the second clamping component 22 and the first positioning piece 23 at the other end of the mounting seat 21. Specifically, in the embodiment shown in Figure 11 the second clamping components 22 and the first positioning pieces 23 are provided at both the left and right ends of the mounting seat 21. The transfer piece A3 at the left end of the battery cell A1 is positioned by the second clamping component 22 and the first positioning piece 23 at the left end of the mounting seat 21. The transfer piece A3 at the right end of the battery cell A1 is positioned by the second clamping component 22 and the first positioning piece 23 at the right end of the mounting seat 21.

[0092] Please refer to Figures 15 to 17 As shown, in the embodiment of the present invention, the stacking and flipping mechanism 30 includes a fixed seat 31, a flipping seat 32, a second support frame 33, and a third clamping component (not labeled in the figure). The flipping seat 32 is rotatably connected to the fixed seat 31 in a controlled manner, that is, the flipping seat 32 can be controlled to rotate relative to the fixed seat 31. The second support frame 33 is connected to the flipping seat 32 to rotate relative to the fixed seat 31 together with the flipping seat 32. And the second support frame 33 has a second support position (not labeled in the figure) for carrying the battery cell group A4, that is, the first transfer mechanism 20 stacks a plurality of battery cells A1 on the second support position in sequence, thereby forming a battery cell group A4 supported on the second support position. The third clamping component is arranged on the second support frame 33 and / or the flipping seat 32 for fixing the battery cell group A4 carried on the second support position. In this way, first, the second support position of the second support frame 33 carries the battery cells A1 transferred by the first transfer mechanism 20 until a battery cell group A4 formed by stacking a certain number of battery cells A1 is formed on the second support position. Then, the battery cell group A4 is fixed by the third clamping component, that is, each battery cell A1 of the battery cell group A4 is fixed relative to the second support frame 33. Then, the flipping seat 32 is controlled to rotate 90° relative to the fixed seat 31, so that the battery cell group A4 on the second support position is flipped from the vertical stacking state to the horizontal stacking state, thereby realizing the stacking and flipping of the battery cells A1.

[0093] Specifically in the embodiment, the stacking and flipping mechanism 30 further includes a plurality of first adapter plate positioning components 35 corresponding one by one to the adapter plates A3 on each battery cell A1 of the battery cell group A4. Each first adapter plate positioning component 35 includes a second positioning driving member 351 and a first positioning block 352. The second positioning driving member 351 is installed on the second support frame 33 and is drivingly connected to the first positioning block 352 to drive the first positioning block 352 to move between a positioning position and an avoidance position. When the first positioning block 352 moves to the positioning position, the first positioning block 352 contacts the side of the adapter plate A3 on the corresponding battery cell A1 away from the battery cell A1. When the first positioning block 352 moves to the avoidance position, the first positioning block 352 separates from the adapter plate A3 on the battery cell A1. Thus, after the first transfer mechanism 20 transfers the first battery cell A1 to the second support position of the second support frame 33, the first positioning block 352 corresponding to the adapter plate A3 of the first battery cell A1 moves to the positioning position under the drive of the second positioning driving member 351, so as to position the adapter plate A3 of the first battery cell A1 and prevent the adapter plate A3 from shifting in position during the flipping process. When the first transfer mechanism 20 stacks the second battery cell A1 on the first battery cell A1, the first positioning block 352 corresponding to the second battery cell A1 moves to the positioning position under the drive of the second positioning driving member 351, so as to position the adapter plate A3 of the second battery cell A1 and prevent the adapter plate A3 from shifting in position during the flipping process. And so on, until the stacking of the required number of battery cells A1 (for example, stacking three battery cells A1) is completed, and the adapter plates A3 on each battery cell A1 are positioned. Optionally, the second positioning driving member 351 can be a cylinder.

[0094] Further, a suction cup is provided on the side surface of the first positioning block 352 for contacting the adapter plate A3. Thus, when the first positioning block 352 moves to the positioning position, the suction cup on the first positioning block 352 adsorbs and fixes the adapter plate A3 on the corresponding battery cell A1, so as to position the adapter plate A3.

[0095] Further, a positioning portion 3521 protrudes from the side surface of the first positioning block 352 for contacting the adapter plate A3. When the first positioning block 352 moves to the positioning position, the positioning portion 3521 contacts the top of the adapter plate A3 to position the adapter plate A3 in the height direction.

[0096] Further, the second positioning driving member 351 drives the first positioning block 352 to move along the first horizontal direction X, and the third clamping assembly limits the battery cell group A4 along the third horizontal direction Y. Wherein, the first horizontal direction X is parallel to the length direction of the battery cell A1 on the second support position, and the third horizontal direction Y is parallel to the width direction of the battery cell A1 on the second support position.

[0097] It should be noted that since both longitudinal ends of each battery cell A1 have tab A2, and there are adapter plates A3 on each tab A2, first adapter plate positioning components 35 equal in number to the battery cells A1 of the battery cell group A4 are provided at both ends of the second support frame 33 in the first horizontal direction X to position the adapter plates A3 at both longitudinal ends of each battery cell A1 of the battery cell group A4 respectively.

[0098] Specifically in the embodiment, the third clamping assembly includes a first lifting drive member 341, a fourth clamping block 342, and a fixed clamping block 349. The second support frame 33 is disposed on the flipping seat 32. The first lifting drive member 341 is installed on the second support frame 33 and is drivingly connected to the fourth clamping block 342 to drive the fourth clamping block 342 to lift to reach or leave one side of the second support position in the third horizontal direction Y. The fixed clamping block 349 is installed on the second support frame 33 and is located on the other side of the second support position in the third horizontal direction Y. Thus, when stacking the battery cells A1, the first transfer mechanism 20 transfers the battery cells A1 one by one to the second support position, and the fixed clamping block 349 positions each of the battery cells A1 stacked on the second support position. After the battery cells A1 are stacked, the first lifting drive member 341 drives the fourth clamping block 342 to lift to the side of the second support position away from the fixed clamping block 349, that is, the fourth clamping block 342 and the fixed clamping block 349 limit each of the battery cells A1 therebetween in the third horizontal direction Y. Optionally, the first lifting drive member 341 may be a cylinder.

[0099] Further, the third clamping assembly further includes a fixing plate 343, a pressing drive member 36, a clamping drive member 344, and a fifth clamping block 345. The fixing plate 343 is connected to the second support frame 33 in a liftable manner. The pressing drive member 36 is installed on the second support frame 33 and is drivingly connected to the fixing plate 343 to drive the fixing plate 343 to rise or fall relative to the second support frame 33. The clamping drive member 344 is installed on the fixing plate 343 and is drivingly connected to the fifth clamping block 345 to drive the fifth clamping block 345 to move to a pressing position or an avoidance position in the horizontal direction (for example, the third horizontal direction Y).

[0100] When the fifth clamping block 345 moves to the pressing position, the fifth clamping block 345 is located above the second support position, so that when the pressing drive member 36 drives the fixing plate 343 to descend at this time, it can drive the fifth clamping block 345 to press against the top surface of the battery cell group A4 on the second support position. When the fifth clamping block 345 moves to the avoidance position, the fifth clamping block 345 withdraws from above the second support position to facilitate avoiding the action of the first transfer mechanism 20 transferring the battery cells A1 one by one to the second support position. Optionally, the pressing drive member 36 may be a cylinder.

[0101] Specifically in the embodiment, the stacking and flipping mechanism 30 includes a first state and a second state. When the stacking and flipping mechanism 30 is in the first state, the first lifting drive 341 drives the fourth clamping block 342 to lift up to leave one side of the second support position in the third horizontal direction Y, and the clamping drive 344 drives the fifth clamping block 345 to be located at the above-mentioned avoidance position. At this time, the first transfer mechanism 20 stacks the battery cells A1 one by one onto the second support position until the required number of battery cells A1 are stacked onto the second support position. It can be understood that during the process of stacking the battery cells A1, the fixed clamping block 349 is used to position the battery cells A1 in their width direction, and the first positioning block 352 is used to position the battery cells A1 in their length direction.

[0102] When the stacking and flipping mechanism 30 is in the second state, the first lifting drive 341 drives the fourth clamping block 342 to lift up to reach one side of the second support position in the third horizontal direction Y, so as to jointly limit the battery cell group A4 on the second support position in the third horizontal direction Y with the fixed clamping block 349. And the clamping drive 344 drives the fifth clamping block 345 to move horizontally to the pressing position. At this time, when the pressing drive 36 drives the fixed plate 343 to descend, it can drive the fifth clamping block 345 to press against the top surface of the battery cell group A4 on the second support position, that is, to press and fix the battery cell group A4 on the second support frame 33. Then, the control flips the seat 32 to drive the battery cell group A4 to flip 90°, so that the battery cell group A4 is flipped from the vertical stacking state to the horizontal stacking state.

[0103] Specifically in the embodiment, the stacking and flipping mechanism 30 further includes a flipping drive assembly 37, and the flipping drive assembly 37 includes a flipping drive, a driving wheel, a driven wheel and a transmission belt. The flipping seat 32 is rotatably connected to the fixed seat 31 through a rotating shaft 321. The flipping drive is installed on the fixed seat 31, the driving wheel is installed on the output shaft of the flipping drive, the driven wheel is installed on the rotating shaft 321, and the transmission belt is sleeved between the driving wheel and the driven wheel. Thus, when it is necessary to drive the flipping seat 32 to flip, the flipping drive drives the driving wheel to rotate, the driving wheel drives the driven wheel to rotate through the transmission belt, the driven wheel drives the rotating shaft 321 to rotate, and further the rotating shaft 321 drives the flipping seat 32 to rotate. Optionally, the flipping drive can adopt a motor.

[0104] It should be noted that the flipping drive assembly 37 is not limited to using a belt drive structure to realize the flipping of the flipping seat 32. Of course, other rotational drive structures can also be used to realize it, for example, a structure in which a motor is connected to the rotating shaft 321 through a speed reducer, which is not limited herein.

[0105] Of course, in order to further improve the positioning effect of the adapter A3 during the flipping process, in other embodiments, the third clamping assembly also includes a mounting plate and a second positioning plate. The mounting plate is mounted on the driving end of the clamping drive 344 so as to be driven by the clamping drive 344 to move along the third horizontal direction Y. The fifth clamping block 345 and the second positioning plate are both mounted on the mounting plate. When the fifth clamping block 345 presses the battery cell group A4 onto the second support frame 33, the second positioning plate is inserted between each battery cell A1 of the battery cell group A4 and the adapter A3 thereon.

[0106] In this way, when the fifth clamping block 345 is needed to press the battery cell group A4, the clamping drive 344 drives the fifth clamping block 345 to move to the pressing position along the third horizontal direction Y through the mounting plate. Then, the pressing drive 36 drives the fixing plate 343 to descend until the fifth clamping block 345 is driven to press the top surface of the battery cell group A4 on the second support position, that is, the battery cell group A4 is pressed and fixed on the second support frame 33. At the same time, the second positioning plate on the mounting plate is inserted from the top of the battery cell group A4 to between each battery cell A1 of the battery cell group A4 and the adapter A3 thereon, so that each adapter A3 is positioned by the second positioning plate, further preventing the adapter A3 from being offset in the process of flipping the battery cell group A4, which is beneficial to improving the welding quality during subsequent welding.

[0107] See also Figures 18 to 20 As shown, in an embodiment of the present invention, the second transport mechanism includes a clamping claw seat 38, a clamping claw (not shown) and a second adapter plate positioning assembly (not marked). The clamping claw seat 38 can be controlled to move between the stacking station and the assembly station, and the clamping claw is installed on the clamping claw seat 38. The second adapter plate positioning assembly includes a second positioning block 381 and a pressing block 382, ​​both of which are installed on the clamping claw seat 38. When the clamping claw seat 38 drives the clamping claw to move to the stacking station and clamps the battery cell group A4, the second positioning block 381 is inserted into the side of the adapter plate A3 on each battery cell A1 of the battery cell group A4 facing the battery cell A1, and the pressing block 382 is inserted into the side of the adapter plate A3 on each battery cell A1 of the battery cell group A4 away from the battery cell A1. The pressing block 382 can be controlled to move closer to or farther away from the second positioning block 381, so as to press the adapter plate A3 onto the second positioning block 381 or release the pressing of the adapter plate A3.

[0108] Specifically in the embodiment, the second positioning block 381 is provided with a plurality of third positioning grooves 3811 corresponding to the adapter plates A3 of each battery cell A1 of the battery cell group A4 on the side facing the clamping block 382. When the clamping claw clamps the battery cell group A4, the second positioning block 381 is inserted into the side of the adapter plates A3 on each battery cell A1 of the battery cell group A4 facing the battery cell A1, and the adapter plates A3 on each battery cell A1 of the battery cell group A4 are inserted into the corresponding third positioning grooves 3811, and the clamping block 382 is used to clamp the adapter plates A3 in the third positioning grooves 3811 to achieve the positioning of the adapter plates A3 of each battery cell A1 of the battery cell group A4. In this way, when it is necessary to transport the battery cell group A4 on the second support frame 33, first, the clamping claw seat 38 is controlled to move to the stacking station, and the clamping claw seat 38 is controlled to descend until the battery cell group A4 on the second support frame 33 enters the clamping claw. At this time, the clamp is controlled to clamp the battery cell group A4, and the second positioning block 381 is inserted into the side of the adapter A3 on each battery cell A1 of the battery cell group A4 facing the battery cell A1, and each adapter A3 is located in the third positioning groove 3811 of the second positioning block 381, and the clamping block 382 is inserted into the side of the adapter A3 on each battery cell A1 of the battery cell group A4 away from the battery cell A1. Then, the clamping block 382 is controlled to move toward the second positioning block 381 until the adapter A3 is pressed into the third positioning groove 3811 on the second positioning block 381, thereby positioning the adapter A3. Then, the clamp seat 38 is controlled to rise, and then the clamp seat 38 is controlled to move to the assembly station, and the battery cell group A4 is released to the assembly station. Optionally, the clamp can be an electric clamp or an air clamp.

[0109] Furthermore, the side of the pressing block 382 facing the second positioning block 381 has a first area 3821 and a second area 3822 located below the first area 3821. The first area 3821 is used to press the adapter A3 onto the second positioning block 381, and the second area 3822 is used to adsorb and fix the adapter A3. In this way, the adapter A3 is adsorbed and fixed by the second area 3822 of the pressing block 382, ​​further improving the positioning effect of the adapter A3 and improving the positioning accuracy. It can be understood that the second area 3822 can achieve the adsorption of the adapter A3 by opening an adsorption hole connected to an external air source or by providing a suction cup.

[0110] Specifically in the embodiment, the second adapter plate positioning assembly further includes a clamping driver 383, the clamping driver 383 is mounted on the clamping claw seat 38, and the clamping block 382 is mounted on the driving end of the clamping driver 383, so that the clamping driver 383 can drive the clamping block 382 to move closer to or away from the second positioning block 381. Optionally, the clamping driver 383 can be a cylinder.

[0111] Specifically in the embodiments, the second transfer mechanism further includes a second moving drive assembly (not shown in the figure), which is drivingly connected to the jaw seat 38 to drive the jaw seat 38 to move between the stacking station and the assembly station, and also drive the jaw seat 38 to rise or fall. It should be noted that the second moving drive assembly can adopt relatively mature existing technologies, as long as it can drive the jaw seat 38 to move between the stacking station and the assembly station, and also drive the jaw seat 38 to rise or fall, which is not limited herein.

[0112] Please refer to Figures 21 to 24 As shown, in the embodiments of the present invention, the assembly device 4 includes a first support frame 41 and a guide block 42. The first support frame 41 has a first support position (not marked in the figure) for carrying the top cover B1 and the battery cell group A4. The guide block 42 is installed on the first support frame 41, and a first positioning groove 421 is formed on one side facing the first support position. When the top cover B1 is carried on the first support position, the side of the guide block 42 facing the first support position fits with the top cover pins B2 of the top cover B1, thereby achieving the positioning effect on the top cover pins B2.

[0113] The top surface of the guide block 42 has an insertion tab opening a communicating with the first positioning groove 421. When the second transfer mechanism transfers the battery cell group A4 to the first support position of the first support frame 41, the connection tabs A3 on each battery cell A1 of the battery cell group A4 are inserted into the first positioning groove 421 through the insertion tab opening a. Thus, the first positioning groove 421 achieves the positioning effect on the connection tabs A3, and makes the connection tabs A3 inserted into the first positioning groove 421 fit with the top cover pins B2 of the top cover, so as to facilitate subsequent welding of the two, which is beneficial to improving the welding quality.

[0114] Please refer to Figures 26 to Figure 28 As shown, specifically in the embodiments, the top surface of the guide block 42 is provided with a first chamfered slope 422 arranged around the insertion tab opening a. In this way, when the second transfer mechanism drives the battery cell group A4 to descend and releases the battery cell group A4 onto the top cover B1, the first chamfered slope 422 guides the connection tabs A3 into the first positioning groove 421, avoiding the phenomenon that the connection tabs A3 cannot be inserted into the first positioning groove 421.

[0115] Specifically in the embodiments, the inner wall of the first positioning groove 421 has a plurality of protruding portions 423. The plurality of protruding portions 423 are arranged at intervals to divide the first positioning groove 421 into a plurality of sub-positioning grooves 4210. When the second transfer mechanism transfers the battery cell group A4 to the first support position, the connection tabs A3 on each battery cell A1 of the battery cell group A4 are inserted into the plurality of sub-positioning grooves 4210 one by one. In this way, using the plurality of protruding portions 423 to divide the first positioning groove 421 into a plurality of sub-positioning grooves 4210, and using each sub-positioning groove 4210 to position the connection tabs A3 is beneficial to improving the positioning accuracy.

[0116] Further, the top end of each protruding portion 423 has two second chamfered inclined surfaces 424 respectively facing two adjacent sub-positioning grooves 4210. In this way, the two second chamfered inclined surfaces 424 at the top of the protruding portion 423 respectively guide the connecting pieces A3 of the two adjacent battery cells A1, so that the connecting pieces A3 of the two battery cells A1 can be accurately inserted into the two sub-positioning grooves 4210 on both sides of the protruding portion 423 respectively.

[0117] Specifically Figures 26 to 28 In the illustrated embodiment, there are two protruding portions 423 on the inner wall of the first positioning groove 421, and the two protruding portions 423 divide the first positioning groove 421 into three sub-positioning grooves 4210. When the second transfer mechanism transfers the battery cell group A4 to the first support position, the connecting pieces A3 on the three battery cells A1 of the battery cell group A4 are inserted into the multiple sub-positioning grooves 4210 one by one.

[0118] Please refer to again Figures 21 to 24 As shown, in some embodiments, the assembling device 4 further includes a first insert positioning component 43. The first insert positioning component 43 includes a first insert driving component 431, a first insert mounting seat 432 and a first positioning insert 433. The first insert driving component 431 is mounted on the first support frame 41 and is drivingly connected to the first insert mounting seat 432. The first positioning insert 433 is mounted on the first insert mounting seat 432 so that the first positioning insert 433 moves together with the first insert mounting seat 432. The first insert driving component 431 is configured to controllably drive the first insert mounting seat 432 to move along the second horizontal direction Z and drive the first positioning insert 433 to insert into the side of the top cover pin B2 of the top cover B1 facing away from the guide block 42.

[0119] In this way, after the top cover B1 is placed on the first support position, the first insert driving component 431 drives the first insert mounting seat 432 to move along the second horizontal direction Z, thereby driving the first positioning insert 433 to insert into the side of the top cover pin B2 of the top cover B1 facing away from the guide block 42, so as to press the top cover pin B2 against the protruding portion 423 of the guide block 42, so that when the connecting piece A3 is inserted into each sub-positioning groove 4210, each connecting piece A3 is closely attached to the top cover pin B2. Of course, in other embodiments, the first positioning insert 433 can also be inserted into the side of the top cover pin B2 facing away from the guide block 42 under the driving action of the first insert driving component 431 after each connecting piece A3 is respectively inserted into each sub-positioning groove 4210, so as to further press the top cover pin B2 against each connecting piece A3.

[0120] Specifically in the embodiments, the first insert driving component 431 is further configured to controllably drive the first insert mounting seat 432 to move along a first horizontal direction X perpendicular to the second horizontal direction Z, so as to adjust the position of the first positioning insert 433 in the first horizontal direction X, such that the gap between the first positioning insert 433 and the side of the top cover pin B2 facing away from the guiding block 42 in the second horizontal direction Z is aligned, and such that when the first positioning insert 433 moves along the second horizontal direction Z, it can accurately be inserted into the gap on the side of the top cover pin B2 facing away from the guiding block 42. It should be noted that the first insert driving component 431 can adopt a relatively mature linear driving structure in the prior art, as long as it can drive the first insert mounting seat 432 to move along the mutually perpendicular first horizontal direction X and second horizontal direction Z, and no limitation is made herein.

[0121] Specifically to Figures 21 to 24 In the illustrated embodiments, the first horizontal direction X is parallel to the longitudinal direction of each battery cell A1 of the battery cell group A4 carried on the first support position, and the second horizontal direction Z is parallel to the thickness direction of each battery cell A1 of the battery cell group A4 carried on the first support position (i.e., the stacking direction of each battery cell A1).

[0122] Specifically in the embodiments, the assembling device 4 further includes a second insert positioning component 44. The second insert positioning component 44 includes a second insert driving component 441, a second insert mounting seat 442, and a second positioning insert 443. The second insert driving component 441 is mounted on the first support frame 41 and is drivingly connected to the second insert mounting seat 442. The second positioning insert 443 is mounted on the second insert mounting seat 442 and is located on both sides of the first support position in the second horizontal direction Z respectively with the first positioning insert 433. The second insert driving component 441 is configured to controllably drive the second insert mounting seat 442 to move along the second horizontal direction Z and drive the second positioning insert 443 to be inserted into the side of the top cover pin B2 of the top cover B1 facing away from the guiding block 42. In this way, by using the first positioning insert 433 and the second positioning insert 443 to be inserted into the side of the top cover pin B2 facing away from the guiding block 42 from both sides of the battery cell group A4 in the second horizontal direction Z respectively, the top cover pin B2 is tightly attached to each adapter piece A3 under the extrusion of the first positioning insert 433 and the second positioning insert 443.

[0123] Specifically in the embodiment, the second plug-in drive assembly 441 is also configured to controllably drive the first plug-in mounting seat 432 to move along the first horizontal direction X perpendicular to the second horizontal direction Z, thereby adjusting the position of the second positioning plug-in 443 in the first horizontal direction X, so that the second positioning plug-in 443 is aligned with the gap on the side of the top cover pin B2 away from the guide block 42 in the second horizontal direction Z, so that the second positioning plug-in 443 can be accurately inserted into the gap on the side of the top cover pin B2 away from the guide block 42 when moving along the second horizontal direction Z. It should be noted that the second plug-in drive assembly 441 can adopt a relatively mature linear drive structure in the prior art, as long as it can drive the second plug-in mounting seat 442 to move along the first horizontal direction X and the second horizontal direction Z perpendicular to each other, and is not limited here.

[0124] It should also be noted that the second insert positioning component 44 is not essential, and only the first insert positioning component 43 may be provided. In the embodiment where only the first insert positioning component 43 is provided, only the first positioning insert 433 is used to position the top cover pin B2, so the first positioning insert 433 is relatively long and easily deformed, which affects the positioning effect.

[0125] Of course, the first insert positioning component 43 and the second insert positioning component 44 may also be provided at the same time. In the embodiment where the first insert positioning component 43 and the second insert positioning component 44 are provided at the same time, since the top cover pin B2 is positioned by using the first positioning insert 433 and the second positioning insert 443 at the same time, the length dimension of a single positioning insert can be greatly reduced, deformation due to a long single positioning insert is avoided, and positioning accuracy is greatly improved.

[0126] It should also be noted that each battery cell A1 of the battery cell group A4 has a tab A2 at both ends of the longitudinal length, and each tab A2 has a transfer sheet A3. Figure 25 As shown, the top cover B1 has top cover pins B2 at both ends of the longitudinal length of the battery cell A1. In order to make each adapter A3 located at the same end of the battery cell group A4 fit tightly with the top cover pins B2, guide blocks 42, first plug-in positioning components 43 and second plug-in positioning components 44 are provided at both ends of the first horizontal direction X of the first support frame 41. The guide block 42, first plug-in positioning components 43 and second plug-in positioning components 44 located at one end of the first support frame 41 position each adapter A3 and top cover pins B2 at one end of the battery cell group A4 so that they fit tightly. The guide block 42, first plug-in positioning components 43 and second plug-in positioning components 44 located at the other end of the first support frame 41 position each adapter A3 and top cover pins B2 at the other end of the battery cell group A4 so that they fit tightly.

[0127] For example, Figure 22In the illustrated embodiment, both the left and right ends of the battery cell group A4 are provided with adapter plates A3. Both the left and right ends of the top cover B1 are provided with top cover pins B2. Guide blocks 42, first insert positioning assemblies 43, and second insert positioning assemblies 44 are provided at both the left and right ends of the first support frame 41. The guide block 42, the first insert positioning assembly 43, and the second insert positioning assembly 44 located at the left end of the first support frame 41 are used to position the respective adapter plates A3 and top cover pins B2 at the left end of the battery cell group A4 so that they are closely attached to each other. The guide block 42, the first insert positioning assembly 43, and the second insert positioning assembly 44 located at the right end of the first support frame 41 are used to position the respective adapter plates A3 and top cover pins B2 at the right end of the battery cell group A4 so that they are closely attached to each other.

[0128] In some embodiments, the assembly device 4 further includes a first clamping assembly (not labeled in the figure), and the first clamping assembly includes a clamping drive assembly (not labeled in the figure) and two first clamping blocks 451. The clamping drive assembly is mounted on the first support frame 41, and the two first clamping blocks 451 are respectively located on both sides of the first support position in the second horizontal direction Z and are drivingly connected to the clamping drive assembly so as to be driven by the clamping drive assembly to approach or move away from each other, thereby clamping or releasing the battery cell group A4 along the second horizontal direction Z. In this way, after the positioning of the respective adapter plates A3 of the battery cell group A4 and the top cover pins B2 of the top cover B1 is completed, the clamping drive assembly drives the two first clamping blocks 451 to approach each other along the second horizontal direction Z until the battery cell group A4 is clamped, so as to prevent the battery cell group A4 from shifting in position when being transferred to the next station. When the welding of the respective adapter plates A3 of the battery cell group A4 and the top cover pins B2 is completed and blanking is required, the clamping drive assembly drives the two first clamping blocks 451 to move away from each other along the second horizontal direction Z, thereby releasing the clamping of the battery cell group A4. At this time, the battery cell group A4 and the top cover B1 on the first support frame 41 can be blanked.

[0129] It should be noted that the clamping drive assembly can be an electric claw, a pneumatic claw, or other driving members, as long as it can drive the two first clamping blocks 451 to approach or move away from each other, and no limitation is made here.

[0130] In the embodiment of the present invention, the welding equipment further includes a top cover feeding device, and the top cover feeding device is used to transfer the top cover B1 at the top cover feeding station to the first support position of the first support frame 41 of the assembly device 4. The top cover pins B2 of the top cover B1 transferred to the first support position face upward, so that when the second transfer mechanism transfers the battery cell group A4 to the top cover B1 at the first support position, the respective adapter plates A3 of the battery cell group A4 are inserted into the corresponding sub-positioning grooves 4210 and are closely attached to the top cover pins B2.

[0131] It should be noted that the top cover feeding device can adopt relatively mature existing technologies, such as a feeding manipulator, etc., and no limitation is made here.

[0132] In an embodiment of the present invention, the welding device further has a welding station and a blanking station. The welding device further includes a conveying device (not shown in the figure), and the assembling device 4 is arranged on the conveying device. The conveying device is used to convey the assembling device 4 to circulate between the assembling station, the welding station and the blanking station in sequence. When the assembling device 4 is located at the welding station, the welding device welds the adapter piece A3 and the top cover pin B2 on the assembling device 4. When the assembling device 4 is located at the blanking station, the battery cell group A4 and the top cover B1 on the assembling device 4 are blanked. Thus, in actual use, first, the conveying device conveys the assembling device 4 to the assembling station. At this time, the top cover feeding device transfers the top cover B1 to the first support position of the first support frame 41, and the second transfer mechanism transfers the battery cell group A4 to the top cover B1 at the first support position, so that each adapter piece A3 of the battery cell group A4 is inserted into the corresponding sub-positioning groove 4210 and closely fits with the top cover pin B2. The first clamping assembly is used to clamp the battery cell group A4 so that the battery cell group A4 is fixed at the first support position of the first support frame 41. Then, the conveying device conveys the assembling device 4 to the welding station, and the welding device welds the closely-fitted adapter piece A3 and the top cover pin B2. After welding is completed, the conveying device conveys the assembling device 4 to the blanking station, and at this time, the blanking device blanks the battery cell group A4 and the top cover B1 on the assembling device 4. After blanking is completed, the conveying device conveys the assembling device 4 to the assembling station so that the assembling device 4 can be recycled repeatedly.

[0133] Further, the blanking device transfers the battery cell group A4 and the top cover B1 on the assembling device 4 to the detection station. The battery cell group A4 and the top cover B1 are detected at the detection station. When the welding is unqualified, the blanking device transports the battery cell A1 and the top cover B1 to the blanking conveyor line. When the welding is qualified, the blanking device transports the battery cell A1 and the top cover B1 to the gluing station to glue the welding part.

[0134] It should be noted that a plurality of assembling devices 4 are arranged on the conveying device, and the plurality of assembling devices 4 are circulated and conveyed on the conveying device, that is, each assembling device 4 performs corresponding processes at different stations simultaneously, which is beneficial to improving production efficiency.

[0135] Further, the conveying device can also convey the assembling device 4 to reach the first transfer station and the second transfer station. The first transfer station is adjacent to the welding station, and the second transfer station is adjacent to the blanking station. Thus, since the processing time of each station is different, the first transfer station and the second transfer station are set to coordinate the transfer rhythm of each assembling device 4 at each station.

[0136] Further, the conveying device can also convey the assembling device 4 to reach the dust removal station located downstream of the welding station. When the assembling device 4 reaches the dust removal station, impurities generated after welding are cleaned and collected.

[0137] It should be noted that before the welding device welds the adapter piece A3 and the top cover pin B2, it is necessary to calibrate the defocus amount, that is, to calibrate the distance between the welding head of the welding device and the welding surface. In the prior art, a laser displacement sensor is often used to detect the defocus amount. However, the inventors of the present application have found that since the material of the welding surface of the adapter piece is copper and aluminum, the welding surface has obvious reflection, making the stability of the detection method using reflection to detect the displacement amount unable to meet the production requirements, often giving false alarms and affecting the welding yield of the whole machine.

[0138] In order to solve the above problem of easy false alarms, in the embodiments of the present invention, a contact displacement sensor is installed on the welding device, and the contact displacement sensor is used to detect the distance between the welding device and the first support frame 41, so as to indirectly obtain the distance between the welding head of the welding device and the welding surface (i.e., the defocus amount).

[0139] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0140] The above-described embodiments only represent several implementation manners of the present invention, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the invention patent should be subject to the appended claims.

Claims

1. An assembling device, characterized in that, It comprises a first support frame and a guide block, wherein the first support frame has a first support position for carrying the top cover, the guide block is mounted on the first support frame, and a first positioning groove is provided on one side facing the first support position; When the top cover is supported on the first supporting position, the side of the guide block facing the first supporting position is in contact with the top cover pin of the top cover; The top surface of the guide block has an insert opening connected to the first positioning groove, and when the battery cell group is transferred to the first supporting position, the adapter plates on each battery cell of the battery cell group are inserted into the first positioning groove through the insert opening; The assembling device further comprises a first clamping assembly, and the first clamping assembly is used to clamp the battery cell group so as to fix the battery cell group on the first supporting position of the first supporting frame.

2. The assembling device according to claim 1, characterized in that The top surface of the guide block is provided with a first chamfered inclined surface arranged around the insert opening.

3. The assembly device according to claim 1, characterized in that The inner wall of the first positioning groove has a plurality of protrusions, and the plurality of protrusions are arranged at intervals from each other to divide the first positioning groove into a plurality of sub-positioning grooves; When the battery cell group is transferred to the first supporting position, the adapter plates on the respective battery cells of the battery cell group are inserted into the plurality of sub-positioning grooves one by one.

4. The assembly device according to claim 3, characterized in that, The top end of each protrusion has two second chamfered inclined surfaces, and the two second chamfered inclined surfaces respectively face the two sub-positioning grooves adjacent to the protrusion where the second chamfered inclined surfaces are located.

5. The assembling device according to claim 1, characterized in that, The assembly device further includes a first insert positioning assembly, which includes a first insert driving assembly, a first insert mounting seat and a first positioning insert; The first plug-in drive assembly is mounted on the first support frame and is drivingly connected to the first plug-in mounting seat, and the first positioning plug-in is mounted on the first plug-in mounting seat; The first insert blade driving assembly is configured to controllably drive the first insert blade mounting seat to move along the second horizontal direction, and drive the first positioning insert blade to be inserted into the side of the top cover pin of the top cover away from the guide block.

6. The assembling device according to claim 5, characterized in that, The first plug-in blade driving assembly is also configured to controllably drive the first plug-in blade mounting seat to move along a first horizontal direction perpendicular to the second horizontal direction, so as to adjust the position of the first positioning plug-in blade in the first horizontal direction.

7. The assembly device according to claim 5, characterized in that The assembly device further includes a second plug-in positioning assembly, which includes a second plug-in driving assembly, a second plug-in mounting seat and a second positioning plug-in; The second plug-in drive assembly is mounted on the first support frame and is drivingly connected to the second plug-in mounting seat. The second positioning plug-in is mounted on the second plug-in mounting seat and is located on both sides of the first support position in the second horizontal direction with the first positioning plug-in respectively. The second insert blade driving assembly is configured to controllably drive the second insert blade mounting seat to move along the second horizontal direction, and drive the second positioning insert blade to be inserted into the side of the top cover pin of the top cover away from the guide block.

8. The assembling device according to claim 7, characterized in that, The second insert driving component is further configured to controllably drive the first insert mounting seat to move in a first horizontal direction perpendicular to the second horizontal direction, so as to adjust the position of the second positioning insert in the first horizontal direction.

9. The assembly device according to any one of claims 1 to 8, characterized in that, The first clamping component includes a clamping driving component and two first clamping blocks; The clamping driving component is mounted on the first support frame, and the two first clamping blocks are respectively located on both sides of the first support position in the second horizontal direction, and are both drivingly connected to the clamping driving component, so as to be driven by the clamping driving component to approach or separate from each other.

10. A welding device, characterized in that, It includes the assembling device according to any one of claims 1 to 9.

Images