Negative electrode lug welding logistics line and battery mounting system

Abstract

The utility model provides a cathode tab welding logistics line and a battery installation system, and the structure of the cathode tab welding logistics line comprises a mover which is used for bearing a battery cell and a cathode cover plate; the magnetic suspension conveying line is arranged to be of a semi-surrounding structure with an opening side, the rotor moves on an upper-layer return line and a lower-layer return line of the magnetic suspension conveying line, and the first logistics channel extends into the semi-surrounding structure through the opening side, or the magnetic suspension conveying line is arranged to be a loop line, the rotor moves on the loop line, and the magnetic suspension conveying line is arranged on the fixing device. A second logistics channel is defined between the fixing device and the placement plane; the welding device is arranged at the side part of the magnetic suspension conveying line; and the carrying device goes in and out of the magnetic suspension conveying line through the first logistics channel or the second logistics channel. According to the negative electrode lug welding logistics line and the battery installation system, the problems that an existing negative electrode lug welding logistics line is low in transfer efficiency and low in internal space utilization rate, and the production requirement of products is difficult to meet can be solved.

Description

Technical Field

[0001] The present application relates to the technical field of battery assembly, and in particular to a negative electrode tab welding logistics line and a battery installation system. Background Art

[0002] With the development of battery technology, blade batteries are being used more and more widely, and improving the assembly speed of blade batteries has become an industry consensus. In the process of blade battery assembly, welding the negative electrode tab and the negative electrode cover is an important step. Improving the welding speed of the negative electrode tab and the negative electrode cover is critical to improving the assembly speed of blade batteries.

[0003] In the existing negative electrode tab welding logistics line, high production capacity is generally achieved by stacking more workstations, which makes the transfer of products and the transportation of materials between workstations the bottleneck of the negative electrode tab welding logistics line. At present, the product transfer is usually carried out by means of a transmission belt, and its transfer efficiency is low. In addition, the internal space utilization rate of the existing logistics line is low, resulting in an increase in the floor area, which is inconvenient during maintenance and repair and material transportation, and it is difficult to meet the production needs of the product. Utility Model Content

[0004] In view of this, the purpose of the present application is to provide a negative electrode tab welding logistics line and a battery installation system to solve the problem that the existing negative electrode tab welding logistics line has low transportation efficiency and low internal space utilization, and is difficult to meet product production needs.

[0005] According to a first aspect of the utility model, a negative electrode tab welding logistics line is provided, wherein the negative electrode tab welding logistics line comprises: a mover for carrying a battery cell and a negative electrode cover plate, wherein the battery cell comprises a negative electrode tab; a magnetic levitation conveyor line, wherein the magnetic levitation conveyor line is arranged to form a semi-enclosed structure with an open side, wherein the magnetic levitation conveyor line comprises an upper return line, a lower return line and a first logistics channel, wherein the mover can move on the upper return line and the lower return line, and a first connecting portion is arranged between a first end of the upper return line and a first end of the lower return line, wherein the first connecting portion is used to transport the mover from the lower return line to the upper return line, and a second connecting portion is arranged between a second end of the upper return line and a second end of the lower return line, wherein the second connecting portion is used to transport the mover from the upper return line to the lower return line. A return line, wherein the first logistics channel extends into the semi-enclosed structure through the open side; or the magnetic levitation conveying line is arranged as a loop line connected end to end, the mover moves on the magnetic levitation conveying line, the magnetic levitation conveying line is arranged on a fixing device, the fixing device is arranged on an installation plane, a second logistics channel is enclosed between the fixing device and the installation plane, and the interior of the magnetic levitation conveying line is connected to the exterior of the magnetic levitation conveying line through the second logistics channel; a welding device, wherein the welding device is arranged on the side of the magnetic levitation conveying line, and the welding device can weld the negative electrode tab to the negative electrode cover plate; and a transporting device, wherein the transporting device includes a carrying space, and the transporting device can enter the interior of the magnetic levitation conveying line or move out from the interior of the magnetic levitation conveying line through the first logistics channel or the second logistics channel.

[0006] Preferably, the fixing device comprises a hollow portion, the hollow portion is recessed in a direction away from the installation plane, and the hollow portion and the installation plane enclose the second logistics channel.

[0007] Preferably, the negative electrode tab welding logistics line also includes: a cover plate handling station, which is arranged on the upstream side of the welding device, and the cover plate handling station includes a cover plate material bin and a moving device, the negative electrode cover plates are stored in the cover plate material bin, and the moving device can move the negative electrode cover plates in the cover plate material bin to the mover; and a battery cell loading station, which is arranged between the welding device and the cover plate handling station, and the battery cell loading station can move the battery cell to the mover.

[0008] Preferably, the negative electrode tab welding logistics line further comprises a gluing unit, which is disposed on the downstream side of the welding device and attaches a glue strip to the weld between the negative electrode cover plate and the negative electrode tab.

[0009] Preferably, the negative electrode tab welding logistics line also includes: a first dust removal device, which is located on the downstream side of the glue application portion, and the first dust removal device can remove dust from the upper surface of the battery cell flowing through the first dust removal device; a first detection device, which is arranged on the downstream side of the first dust removal device, and the first detection device can detect the upper surface of the battery cell; and a dust removal detection station, which is arranged on the downstream side of the first detection device, and the dust removal detection station includes a second dust removal device, a first grasping device and a second detection device, the first grasping device can grasp the battery cell flowing through the first grasping device, the second dust removal device can remove dust from the lower surface of the battery cell, and the second detection device can detect the lower surface of the battery cell.

[0010] Preferably, the negative electrode tab welding flow line also includes: a second dust removal device, which is arranged below the glue-applying part; the negative electrode tab welding loop line also includes a third dust removal device and a profilometer, the third dust removal device and the profilometer are both arranged between the glue-applying part and the welding device, the third dust removal device is located on the upstream side of the profilometer, the third dust removal device can remove dust from the battery cell after welding, and the profilometer can detect the welding point between the negative electrode cover plate and the negative electrode tab.

[0011] Preferably, the negative electrode tab welding logistics line also includes a withstand voltage testing station, which is arranged on the downstream side of the dust removal testing station. The withstand voltage testing station includes a moving-in device, a withstand voltage tester and a moving-out device. The moving-in device can move the battery cell on the mover into the withstand voltage tester, and the moving-out device can move the battery cell flowing out of the withstand voltage tester to the mover.

[0012] Preferably, the negative electrode tab welding loop line further comprises a material unloading station, which is arranged at the downstream side of the withstand voltage testing station, and the material unloading station can remove the battery cell on the mover flowing through the material unloading station.

[0013] Preferably, the negative electrode tab welding logistics line also includes: a battery cell discharge station, which is arranged between the voltage resistance testing station and the unloading station, and the battery cell discharge station can discharge the unqualified battery cells on the upstream side; an inspection and maintenance channel, which is arranged between the unloading station and the second connection part, and the damaged movers on the upstream side of the inspection and maintenance channel are discharged through the inspection and maintenance channel, and the undamaged movers are transported to the lower return line through the second connection part; and a cache warehouse, which is arranged between the battery cell discharge station and the inspection and maintenance channel, and the cache warehouse is used to cache the battery cells that have not entered the unloading station in time.

[0014] According to a second aspect of the utility model, a battery mounting system is provided, wherein the battery mounting system comprises the negative electrode tab welding flow line as described above.

[0015] The negative pole tab welding logistics line and battery installation system of the embodiment of the utility model, the mover is used to carry the battery cell and the negative pole cover plate, and the battery cell includes the negative pole tab. The magnetic suspension conveyor line can be set to form a semi-enclosed structure with an open side, and the magnetic suspension conveyor line includes an upper return line, a lower return line and a first logistics channel. The mover can move on the upper return line and the lower return line. Through the high flexibility, intelligence, modularization, high speed, high acceleration and other characteristics of the magnetic suspension conveyor line, the transmission of products between different stations on the magnetic suspension conveyor line can be realized, thereby improving the transportation efficiency of products between different stations. A first connecting portion is provided between the first end of the upper return line and the first end of the lower return line, and the first connecting portion is used to transport the mover from the lower return line to the upper return line. A second connecting portion is provided between the second end of the upper return line and the second end of the lower return line, and the second connecting portion is used to transport the mover from the upper return line to the lower return line. Such a setting can reduce the overall footprint of the logistics line and simplify the layout of the logistics line. The first logistics channel extends into the semi-enclosed structure through the open side of the magnetic suspension conveyor line. Or the magnetic suspension conveyor line is set as a loop line connected end to end, and the mover moves on the magnetic suspension conveyor line to improve the conveying efficiency of products between different stations. The magnetic suspension conveyor line is set on a fixing device, and the fixing device is set on a placement plane. A second logistics channel is enclosed between the fixing device and the placement plane, and the interior of the magnetic suspension conveyor line is connected to the outside of the magnetic suspension conveyor line through the second logistics channel. The handling device includes a carrying space. The handling device can enter the interior of the magnetic suspension conveyor line or move out from the interior of the magnetic suspension conveyor line through the first logistics channel or the second logistics channel to make full use of the internal space of the magnetic suspension conveyor line and realize the transportation of materials. The welding device is set on the side of the magnetic suspension conveyor line for welding the negative pole ear to the negative pole cover plate. This can effectively solve the problem that the existing negative pole ear welding logistics line has low transportation efficiency and low internal space utilization, and it is difficult to meet the production needs of products.

[0016] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic structural diagram of a negative electrode tab welding loop wire according to a first embodiment of the utility model is shown;

[0019] Figure 2 A schematic structural diagram showing a first portion of a negative electrode tab welding loop line according to a first embodiment of the utility model;

[0020] Figure 3 A schematic structural diagram showing the second part of the negative electrode tab welding loop line of the first embodiment of the utility model;

[0021] Figure 4 A schematic structural diagram showing the third part of the negative electrode tab welding loop line of the first embodiment of the utility model;

[0022] Figure 5 A schematic structural diagram showing the fourth part of the negative electrode tab welding loop line of the first embodiment of the utility model;

[0023] Figure 6 It is a structural schematic diagram of a negative electrode tab welding logistics line according to a second embodiment of the utility model;

[0024] Figure 7 yes Figure 6 A magnified view of part A;

[0025] Figure 8 yes Figure 6 A magnified view of part B;

[0026] Fig. 9 is a schematic diagram of a partial structure of a negative electrode tab welding flow line according to a second embodiment of the utility model;

[0027] Fig.10 yes Figure 6 Enlarged view of part C;

[0028] Fig.11 It is a schematic diagram of another part of the structure of the negative electrode tab welding flow line according to the second embodiment of the utility model.

[0029] Figure numerals: 11-magnetic suspension conveyor line; 101-first docking part; 102-second docking part; 12-mover; 13-negative electrode cover plate; 14-battery cell; 15-handling device; 16-hollow part; 2-battery cell loading station; 3-welding device; 4-cover plate handling station; 41-cover plate silo; 42-moving device; 43-coding device; 44-scanning device; 45-pairing silo; 5-unloading station; 61-contour meter; 62-first dust removal device; 63-first detection device; 64-dust removal detection station; 65-glue sticking part; 651-glue sticking device; 652-slideway; 6501-first channel; 6 502-second channel; 6500-glueing station; 66-glueing detection device; 67-third dust removal device; 68-fourth dust removal device; 71-cell discharge station; 711-first grabbing device; 712-first silo; 72-inspection and maintenance channel; 721-second grabbing device; 722-second silo; 8-cache warehouse; 81-cache silo; 82-third grabbing device; 9-pressure test station; 91-moving-in device; 92-pressure tester; 93-moving-out device; 30-first logistics channel; 301-pressure head centralized placement area; 302-coil centralized placement area; 303-negative electrode cover plate preparation area. DETAILED DESCRIPTION

[0030] The following specific embodiments are provided to help the reader obtain a comprehensive understanding of the methods, devices and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be apparent. For example, the order of operations described herein is merely an example, and is not limited to the order set forth herein, but in addition to the operations that must occur in a particular order, changes that will be apparent after understanding the disclosure of the present application may be made. In addition, in order to improve clarity and brevity, descriptions of features known in the art may be omitted.

[0031] The features described herein may be implemented in different forms and should not be interpreted as being limited to the examples described herein. Rather, the examples described herein have been provided only to illustrate some of the many possible ways of implementing the methods, devices and / or systems described herein that will be apparent after understanding the disclosure of the present application.

[0032] Throughout the specification, when an element (such as a layer, a region, or a substrate) is described as being “on”, “connected to”, “bound to”, “over”, or “covering” another element, it may be directly “on”, “connected to”, “bound to”, “over”, or “covering” another element, or one or more other elements may be present between them. In contrast, when an element is described as being “directly on”, “directly connected to”, “directly bound to”, “directly over”, or “directly covering” another element, there may be no other elements present between them.

[0033] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0034] Although terms such as "first," "second," and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions are not limited by these terms. Rather, these terms are only used to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Therefore, without departing from the teachings of the examples described herein, the first member, component, region, layer, or portion referred to may also be referred to as the second member, component, region, layer, or portion.

[0035] For ease of description, spatial relational terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. Such spatial relational terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, an element described as being "above" or "upper" relative to another element will subsequently be "below" or "lower" relative to the other element. Therefore, the term "above" includes both "above" and "below" orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly.

[0036] The terms used herein are only used to describe various examples and are not used to limit the examples. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "include", "comprising" and "having" list the existence of the stated features, quantities, operations, components, elements and / or their combinations, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or their combinations.

[0037] Variations in the shapes shown in the drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include variations in shapes that occur during manufacturing.

[0038] The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application.

[0039] like Figures 1 to 11 As shown, according to the first aspect of the utility model, a negative electrode tab welding logistics line is provided, and the negative electrode tab welding logistics line includes a mover 12, a magnetic suspension conveyor line 11, a welding device 3 and a handling device 15.

[0040] In the following description, reference will be made to Figures 1 to 6 The specific structure of the above components of the negative electrode tab welding logistics line and the connection relationship of the above components are specifically described.

[0041] like Figures 1 to 11 As shown, in the embodiment, the mover 12 is used to carry the battery cell 14 and the negative electrode cover 13, and the battery cell 14 includes a negative electrode tab. The mover 12 can be a mover trolley, which is used to carry the battery components and move on the magnetic suspension conveyor line 11. Figures 6 to 11In the illustrated embodiment, the magnetic levitation conveyor line 11 can be configured to form a semi-enclosed structure with an open side. In this case, the magnetic levitation conveyor line 11 includes an upper return line, a lower return line, and a first logistics channel 30. The mover 12 can move on the upper return line and the lower return line. A first connecting portion 101 can be provided between the first end of the upper return line and the first end of the lower return line, so that the first ends of the upper and lower return lines are connected. The first connecting portion 101 is used to transport the mover 12 from the lower return line to the upper return line. A second connecting portion 102 is provided between the second end of the upper return line and the second end of the lower return line, and the second connecting portion 102 is used to transport the mover 12 from the upper return line to the lower return line, so that the upper and lower return lines can be completely connected. Such a layered arrangement can reduce the overall footprint of the negative electrode tab welding logistics line. The first logistics channel 30 can extend through the opening side into the semi-enclosed structure to reasonably utilize the space inside the magnetic suspension conveyor line 11. Figures 1 to 5 In the illustrated embodiment, the magnetic levitation conveyor line 11 is configured as a loop line connected end to end. In this case, the mover 12 moves on the magnetic levitation conveyor line 11. The magnetic levitation conveyor line 11 may be disposed on a fixture, and the fixture may be disposed on an installation plane. The interior of the magnetic levitation conveyor line 11 is connected to the exterior of the magnetic levitation conveyor line 11 through the second logistics channel to rationally utilize the space inside the magnetic levitation conveyor line 11. The handling device 15 may include a carrying space. The handling device 15 may enter the interior of the magnetic levitation conveyor line 11 or move out of the interior of the magnetic levitation conveyor line 11 through the first logistics channel 30 or the second logistics channel to transport materials to each workstation. In both of the above cases, the welding device 3 may be disposed on the side of the magnetic levitation conveyor line 11, and is used to weld the negative pole lug of the battery cell 14 to the negative pole cover plate 13, and the welding device 3 may be a laser welding machine. With such a configuration, through the high flexibility, intelligence, modularity, high speed, high acceleration and other characteristics of the magnetic levitation conveyor line 11, it is possible to realize the transmission of products between different workstations on the magnetic levitation conveyor line 11, thereby greatly improving the transportation efficiency of products between different workstations.

[0042] Preferably, Figures 1 to 5As shown, in the first embodiment, when the magnetic suspension conveyor line 11 is set as a loop line connected end to end, a second logistics channel (not shown) is enclosed between the fixing device and the installation plane, so that the handling device 15 carrying the material can enter the interior of the magnetic suspension conveyor line 11 or move out from the interior of the magnetic suspension conveyor line 11 through the second logistics channel, thereby utilizing the internal space of the magnetic suspension conveyor line 11 to realize the transportation of materials, reduce the input of personnel, reduce the cost of operating the negative electrode tab welding loop line, and thus reduce the cost of battery assembly. The handling device 15 can be a handling device such as an AGV trolley, a handling robot, etc., so as to realize the transportation of materials such as film.

[0043] Furthermore, the installation plane may be a factory floor, and the fixing device may be a table ( Figure 1 and Figure 2 Only the hollow portion 16 and the support rod are shown, the support rod supports the table, and the magnetic levitation conveyor line 11 is placed on the table. The lower side of the table of the part of the magnetic levitation conveyor line 11 where the workstation is not set is hollowed out, so that the fixing device is formed with a hollow portion 16. The hollow portion 16 can be recessed in a direction away from the placement plane, so that a second logistics channel can be enclosed between the hollow portion 16 and the placement plane. The handling device 15 can enter the interior of the magnetic levitation conveyor line 11 through the second logistics channel or move out from the interior of the magnetic levitation conveyor line 11, so that the handling device 15 can transport materials to different workstations.

[0044] Preferably, Figure 1 As shown, in the first embodiment, the magnetic suspension transmission line 11 may include a first transmission line segment, a second transmission line segment, a third transmission line segment and a fourth transmission line segment connected in sequence. The first transmission line segment and the third transmission line segment may be connected along the following lines: Figure 1 The lateral extension shown in FIG. Figure 1 The lower side shown in FIG. 1 , the third transmission line segment is located at Figure 1 ), the second transmission line segment and the fourth transmission line segment can be along Figure 1 The vertical extension shown in Figure 1 The fourth transmission line segment is located on the left side shown in Figure 1 In other words, the first transmission line segment, the second transmission line segment, the third transmission line segment and the fourth transmission line segment are arranged to form a rectangular magnetic suspension conveyor line 11. Such arrangement, on the one hand, enables the magnetic suspension conveyor line 11 to adapt to the shape of most factory buildings to save the space occupied by the loop line; on the other hand, enables the magnetic suspension conveyor line 11 to be easily connected with other production loop lines, thereby improving the adaptability of the magnetic suspension conveyor line 11.

[0045] In the first embodiment, preferably, Figure 1 and Figure 2 As shown, the negative electrode tab welding loop includes a cover plate handling station 4, which is arranged on the upstream side of the welding device 3. The cover plate handling station 4 includes a cover plate material bin 41 and a moving device 42. The cover plate material bin 41 stores negative electrode covers 13, and the moving device 42 can transport the negative electrode covers 13 to the mover 12, thereby completing the loading of the negative electrode covers 13. In addition, it can be understood that the upstream side mentioned above and the downstream side opposite to the upstream side mentioned below are determined according to the flow direction of the mover 12.

[0046] Optionally, the moving device 42 may be a robot, and when the negative electrode cover plates 13 in the cover plate silo 41 are short, the cover plate silo 41 may be loaded with material by the transporting device 15 .

[0047] In addition, if Figure 2 As shown, the cover plate transporting station 4 also includes a coding device 43, a code scanning device 44 and a matching silo 45. When the negative electrode tab welding loop is running, the mobile device 42 transports the negative electrode cover plate 13 to the coding device 43, and the coding device 43 codes the negative electrode cover plate 13. Then the mobile device 42 moves the negative electrode cover plate 13 to the code scanning device 44 for scanning. If the code scanning matches, the mobile device 42 moves the negative electrode cover plate 13 to the mover 12; if the code scanning result is not matched, the mobile device 42 moves the negative electrode cover plate 13 to the matching silo 45.

[0048] Optionally, the code engraving device 43 may be a laser code engraving machine, etc., and the code scanning device 44 may be a code scanning machine.

[0049] In addition, the hollow portion 16 and the cover handling station 4 can be located on the same side of the magnetic suspension conveyor line 11. Specifically, the cover handling station 4 and the hollow portion 16 can be respectively arranged at both ends of the first conveying line segment to prevent the cover handling station 4 from blocking the second logistics channel at the hollow portion 16.

[0050] like Figure 1 and Figure 3 As shown, in the first embodiment, the negative electrode tab welding loop also includes a battery cell loading station 2, which is arranged between the welding device 3 and the cover plate transporting station 4. The battery cell loading station 2 can move the battery cell 14 to the mover 12, so that the battery cell 14 is located on one side of the negative electrode cover plate 13, so as to facilitate the welding of the negative electrode tab of the battery cell 14 and the negative electrode cover plate 13.

[0051] Optionally, the battery cell loading station 2 includes a robot, which moves the battery cell 14 after the previous process is completed to the mover 12 .

[0052] In the first embodiment, if Figure 1 and Figure 3As shown, the negative electrode tab welding loop line also includes a third dust removal device 67 and a profiler 61. The third dust removal device 67 is arranged on the downstream side of the welding device 3, and the profiler 61 is arranged on the downstream side of the third dust removal device 67. The third dust removal device 67 can remove dust from the welded battery cell 14, and the profiler 61 can detect the welding point between the negative electrode tab and the negative electrode cover plate 13. If the profiler 61 detects that the battery cell 14 is qualified, the battery cell 14 can proceed to the subsequent process. If the profiler 61 detects that the battery cell 14 is unqualified, the battery cell 14 continues to move with the mover 12. When the battery cell 14 flows through the downstream side station, the downstream side station does not process the battery cell 14. When the mover 12 carrying the battery cell 14 flows to the battery cell discharge station 71 described below, the unqualified battery cell 14 can be discharged through the battery cell discharge station 71. Optionally, the third dust removal device 67 can be a negative pressure dust removal device.

[0053] Preferably, Figure 1 As shown, in the first embodiment, the battery cell loading station 2, the welding device 3, the third dust removal device 67 and the profiler 61 can be arranged in sequence on the second conveying line segment, that is, on the same side of the magnetic suspension conveyor line 11. Such an arrangement can reserve sufficient loading space for the battery cell loading station 2, and enable the mover 12 to quickly move to the welding device 3, the third dust removal device 67 and the profiler 61 after the loading is completed for subsequent operations. In addition, the welding device 3 can be arranged on the inner side of the magnetic suspension conveyor line 11, so that the handling device 15 can enter the inner side of the magnetic suspension conveyor line 11 through the second logistics channel at the hollow portion 16 to transport the welding pressure head for replacement for the welding device 3.

[0054] Furthermore, the negative electrode tab welding loop line also includes a glue sticking portion 65 , which is disposed on the downstream side of the welding device 3 , and the glue sticking portion 65 can stick a glue strip to the weld between the negative electrode cover plate 13 and the negative electrode tab.

[0055] like Figure 1 and Figure 4 As shown, in the first embodiment, the gluing portion 65 includes a gluing device 651 and a slide 652. The slide 652 extends in a direction perpendicular to the magnetic levitation conveyor line 11. The gluing device 651 is arranged on the slide 652 and can slide along the slide 652 to facilitate the replacement of the gluing device 651. The gluing device 651 can be a gluing machine.

[0056] Optionally, there can be multiple glue sticking parts 65, one of which is an operating station and the other stations are standby stations. When the operating station needs to change glue or fails, one of the standby stations is operated to ensure that the negative electrode tab welding loop line does not stop.

[0057] Preferably, the number of the adhesive portions 65 is two.

[0058] Furthermore, the negative electrode tab welding loop also includes a glue detection device 66, which is arranged on the downstream side of the glue sticking part 65. The glue detection device 66 can detect the glue sticking of the battery cell 14 after the glue sticking is completed. If the glue sticking is qualified, the battery cell 14 moves with the mover 12 to the workstation on the downstream side, and the workstation on the downstream side operates on the battery cell 14. If the glue sticking is unqualified, the battery cell 14 continues to move with the mover 12, and the downstream workstation does not operate on the battery cell 14. When the mover 12 carrying the battery cell 14 flows to the battery cell discharge station 71 described below, the unqualified battery cell 14 can be moved into the battery cell discharge station 71.

[0059] Optionally, the glue detection device 66 may be a CCD camera.

[0060] In the first embodiment, the negative electrode tab welding loop line also includes a first dust removal device 62 and a first detection device 63. The first dust removal device 62 is located on the downstream side of the glue sticking part 65. The first dust removal device 62 can remove dust from the upper surface of the battery cell 14 flowing through the first dust removal device 62; the first detection device is arranged on the downstream side of the first dust removal device 62. After the first dust removal device removes dust from the upper surface of the battery cell 14, the first detection device can detect the upper surface of the battery cell 14. When the first detection device detects that the dust removal is unqualified, the battery cell 14 continues to move with the mover 12, and the downstream side station does not operate on the battery cell 14. When the mover 12 carrying the battery cell 14 flows to the battery cell discharge station 71 described below, the unqualified battery cell 14 can be discharged through the battery cell discharge station 71. When the first detection device detects that the dust removal is qualified, the battery cell 14 moves to the downstream side station with the mover 12, and operates on the battery cell 14 at the downstream side station.

[0061] Further, preferably, the negative electrode tab welding loop line also includes a dust removal detection station 64, which is arranged on the downstream side of the first detection device. The dust removal detection station 64 includes a second dust removal device, a first gripping device 711 and a second detection device. The first gripping device 711 can grip the battery cell 14 flowing through the first gripping device 711, the second dust removal device can remove dust from the lower surface of the battery cell 14, and the second detection device can detect the lower surface of the battery cell 14. When the second detection device detects that the dust removal is unqualified, the battery cell 14 continues to move with the mover 12, and the downstream station does not operate on the battery cell 14. When the mover 12 carrying the battery cell 14 flows to the battery cell discharge station 71 described below, the unqualified battery cell 14 can be discharged through the battery cell discharge station 71. When the second detection device detects that the dust removal is qualified, the battery cell 14 moves to the downstream station with the mover 12, and operates on the battery cell 14 at the downstream station.

[0062] Optionally, there may be six dust removal and detection stations 64, with three movers 12 as a group. The three movers 12 in one group enter the last three dust removal and detection stations 64 for dust removal and detection. After the operation is completed, the three movers 12 in the group carry the battery cells 14 to flow to the station on the downstream side. The three movers 12 in the next group enter the first three dust removal and detection stations 64 for dust removal and detection. After the operation is completed, the three movers 12 in the group carry the battery cells 14 to flow to the station on the downstream side, and so on, and the six dust removal and detection stations 64 are operated.

[0063] Preferably, the first dust removal device 62 and the second dust removal device may be negative pressure dust removal equipment, the first gripping device 711 may be a manipulator, and the first detection device and the second detection device may be CCD cameras.

[0064] In addition, preferably, Figure 1 As shown, in the first embodiment, the gluing section 65, the gluing detection device 66, the first dust removal device 62, the first detection device 63 and the dust removal detection station 64 can be sequentially arranged in the second conveying line segment, that is, arranged on the same side of the magnetic suspension conveyor line 11. Such an arrangement enables the battery cell 14 after the gluing to be quickly moved to the first dust removal device 62, the first detection device 63 and the dust removal detection station 64, so as to timely remove dust from the upper and lower surfaces of the battery cell 14. In addition, the gluing section 65 can be arranged on the inner side of the magnetic suspension conveyor line 11, so that the handling device 15 can enter the inner side of the magnetic suspension conveyor line 11 through the second logistics channel at the hollow portion 16 to transport the auxiliary material gluing film roll for the gluing section 65.

[0065] In the first embodiment, if Figure 1 and Figure 5 As shown, the negative electrode tab welding loop line also includes a withstand voltage test station 9, which is arranged at the downstream side of the dust removal test station 64. The withstand voltage test station 9 includes a moving-in device 91, a withstand voltage tester 92 and a moving-out device 93. The moving-in device 91 can move the battery cell 14 on the mover 12 flowing through the withstand voltage test station 9 into the withstand voltage tester 92, and the moving-out device 93 can move the battery cell 14 flowing out of the withstand voltage tester 92 to the mover 12. The battery cell 14 that passes the withstand voltage tester 92 is discharged at the following unloading station 5, and the battery cell 14 that fails the withstand voltage tester 92 can be discharged through the following battery cell discharge station 71.

[0066] Optionally, there may be two withstand voltage testing stations 9, which are located on both sides of the magnetic levitation conveyor line 11, so that the battery cells 14 flowing to the withstand voltage testing station 9 can be subjected to withstand voltage testing at the withstand voltage testing stations 9 on both sides.

[0067] Optionally, the moving-in device 91 and the moving-out device 93 may be manipulators.

[0068] Further, preferably, the negative electrode tab welding loop line further includes a material unloading station 5, which is arranged at the downstream side of the withstand voltage testing station 9, and the material unloading station 5 can remove the battery cell 14 on the mover 12 flowing through the material unloading station 5. The material unloading station 5 can be a manipulator.

[0069] The negative electrode tab welding loop also includes a battery cell discharge station 71 and an inspection and maintenance channel 72. The battery cell discharge station 71 is arranged between the unloading station 5 and the voltage testing station 9. The battery cell discharge station 71 can discharge unqualified battery cells 14 on the upstream side of the battery cell discharge station 71; the inspection and maintenance channel 72 is arranged between the unloading station 5 and the cover plate transporting station 4. The inspection and maintenance channel 72 can move the damaged mover 12 on the upstream side of the inspection and maintenance channel 72 into the inspection and maintenance channel 72.

[0070] Optionally, the battery cell discharge station 71 includes a first gripping device 711 and a first silo 712, and the first gripping device 711 can grip unqualified battery cells 14 into the first silo 712. The inspection and maintenance channel 72 includes a second gripping device 721 and a second silo 722, and the second gripping device 721 can grip the damaged mover 12 into the second silo 722. The first gripping device 711 and the second gripping device 721 can be manipulators.

[0071] In addition, the negative electrode tab welding loop also includes a cache warehouse 8, which includes a cache bin 81 and a third gripping device 82. When the unloading station 5 is unable to move the battery cells 14 on the mover 12 off the negative electrode tab welding loop in time, the third gripping device 82 transports the battery cells 14 on the mover 12 to the cache bin 81 for caching.

[0072] More preferably, Figure 1 As shown, in the first embodiment, the withstand voltage test station 9, the battery cell discharge station 71, the unloading station 5, the cache vertical warehouse 8 and the inspection and maintenance channel 72 can be arranged in sequence on the fourth transmission line segment, that is, on the same side of the magnetic levitation conveyor line 11. Such an arrangement can avoid interference between the withstand voltage test station 9 and the dust removal test station 64, which occupy a large area. The battery cell discharge station 71 and the inspection and maintenance channel 72 are respectively arranged on both sides of the unloading station 5, which conforms to the operation process of first storing unqualified battery cells 14 and then storing damaged movers 12. In addition, the cache vertical warehouse 8 can be arranged on the inner side of the magnetic levitation conveyor line 11, and the cache vertical warehouse 8 can be arranged side by side with the unloading station 5, so that the cache vertical warehouse 8 can quickly cache the battery cells 14, and can improve the space utilization rate and layout rationality of the negative pole ear welding loop.

[0073] Preferably, the negative electrode tab welding loop may further include a fourth dust removal device 68, which can remove dust from the unloaded mover 12. The fourth dust removal device 68 may be arranged on the first conveying line segment. Specifically, the fourth dust removal device 68 may be located on the upstream side of the cover plate handling station 4 and arranged close to the cover plate handling station 4, so that the mover 12 can quickly enter the cover plate handling station 4 after dust removal to avoid being contaminated with dust again. Preferably, the fourth dust removal device 68 may be a negative pressure dust removal device.

[0074] In addition, if Figures 6 to 11 As shown, in the second embodiment, when the magnetic levitation conveying line 11 is configured as a semi-enclosed structure with an open side, the magnetic levitation conveying line 11 can be formed into an approximately rectangular structure. The upper return line and the lower return line are arranged to overlap, the first docking portion 101 can be arranged at the head end of the magnetic levitation conveying line 11, and the second docking portion 102 can be arranged at the tail end of the magnetic levitation conveying line 11. The first docking portion 101 and the second docking portion 102 can be docking platforms for transporting the mover 12 in the height direction.

[0075] Preferably, Figure 6 As shown, in the second embodiment, the magnetic suspension transmission line 11 may include a fifth transmission line segment, a sixth transmission line segment and a seventh transmission line segment connected in sequence. The fifth transmission line segment and the seventh transmission line segment may be connected along the following lines: Figure 6 The vertical extension shown in (the fifth conveyor line segment is located at Figure 6 The seventh transmission line segment is located on the left side shown in Figure 6 The sixth transmission line segment may be along the right side as shown in FIG. Figure 6 The lateral extension shown in (the sixth conveyor line segment is located at Figure 6 Such arrangement, on the one hand, enables the magnetic suspension conveyor line 11 to adapt to the shape of most factory buildings to save the space occupied by the loop line; on the other hand, enables the magnetic suspension conveyor line 11 to be easily connected with other production loop lines, thereby improving the adaptability of the magnetic suspension conveyor line 11.

[0076] like Figure 6As shown, in the second embodiment, the negative electrode tab welding logistics line also includes a first logistics channel 30, which is used to transport materials and waste to each workstation on the negative electrode tab welding logistics line. The first logistics channel 30 can extend into the semi-enclosed structure through the opening side, that is, the first logistics channel 30 is connected to the inside and outside of the negative electrode tab welding logistics line. The handling device 15 can move along the path of the first logistics channel 30 to transport materials to the workstations passing by. Preferably, the handling device 15 can be a handling device such as an AGV trolley, a handling robot, etc. This can greatly reduce the input of personnel, thereby reducing costs, and at the same time, sufficient maintenance and repair areas can be reserved on both sides of the equipment unit to facilitate maintenance of the equipment.

[0077] Preferably, Figures 6 to 8 As shown, in the second embodiment, the negative electrode tab welding logistics line may also include a cover plate handling station 4 and a cell loading station 2. Among them, the cover plate handling station 4 can be arranged near the first docking portion 101, that is, the cover plate handling station 4 is arranged at the head end of the magnetic suspension conveyor line 11. Preferably, the cover plate handling station 4 may include a cover plate material bin 41 and a moving device 42. A plurality of negative electrode cover plates 13 may be stored in the cover plate material bin 41. The moving device 42 is capable of transporting the negative electrode cover plate 13 in the cover plate material bin 41 to the mover 12, thereby completing the loading of the negative electrode cover plate 13. The cell loading station 2 may be arranged on the downstream side of the cover plate handling station 4 (the downstream side and the upstream side described below are determined according to the flow direction of the mover 12). The cell loading station 2 is capable of moving the cell 14 to the mover 12. Preferably, the cell loading station 2 may include a manipulator, which moves the cell 14 after the previous process is completed to the mover 12. The welding device 3 is arranged at the downstream side of the battery cell loading station 2 and is used for welding the negative electrode tab of the battery cell 14 to the negative electrode cover plate 13 .

[0078] More preferably, Figure 6 and Figure 7 As shown, in the second embodiment, the moving device 42 can be a four-axis robot. The four movers 12 can be refluxed from the first docking portion 101 to the upper reflux line. At this time, the loading four-axis robot grabs four negative electrode covers 13 from the cover material bin 41 at a time and completes the cover coding and cover scanning, and then places the four negative electrode covers 13 on the four movers 12 of the cover handling station 4 to complete the loading of the negative electrode covers 13. Then the mover 12 moves to the battery cell loading station 2 to complete the loading of the battery cell 14.

[0079] Preferably, Figure 6As shown, in the second embodiment, the first docking part 101, the cover plate handling station 4 and the battery cell loading station 2 can be arranged in sequence at the first end of the fifth conveying line segment, that is, on the same side of the magnetic levitation conveyor line 11, and the first docking part 101 is arranged at the head end of the fifth conveying line segment. In this way, the mover 12 returning from the first docking part 101 can be quickly moved to the cover plate handling station 4 and the battery cell loading station 2 for loading. In addition, the cover plate bin 41 of the cover plate handling station 4 can be arranged on the inner side of the magnetic levitation conveyor line 11, so that the cover plate bin 41 is arranged close to the first logistics channel 30, so that the handling device 15 can easily refill the cover plate bin 41.

[0080] Preferably, Figure 6 and Figure 8 As shown, in the second embodiment, the negative electrode tab welding flow line may also include a third dust removal device 67 and a profilometer 61. Among them, the third dust removal device 67 can be arranged on the downstream side of the welding device 3, and is used to remove dust from the battery cell 14 after welding. The profilometer 61 is arranged on the downstream side of the third dust removal device 67, and the profilometer 61 can detect the welding point between the negative electrode cover plate 13 and the negative electrode tab of the battery cell 14. If the profilometer 61 detects that the battery cell 14 is qualified, the battery cell 14 can proceed to the subsequent process. If the profilometer 61 detects that the battery cell 14 is unqualified, the battery cell 14 continues to move with the mover 12 to the battery cell discharge station 71 for discharge. Preferably, the third dust removal device 67 can be a negative pressure dust removal device.

[0081] Preferably, Figure 6 As shown, in the second embodiment, the welding device 3, the third dust removal device 67 and the profiler 61 can be arranged in sequence at the second end of the fifth conveying line segment, that is, on the same side of the magnetic suspension conveyor line 11 as the first docking portion 101, the cover plate handling station 4 and the battery cell loading station 2. Such an arrangement can reserve sufficient loading space for the battery cell loading station 2, and enable the mover 12 to quickly move to the welding device 3, the third dust removal device 67 and the profiler 61 after the loading is completed for subsequent operations. In addition, the welding device 3 can be arranged on the inner side of the magnetic suspension conveyor line 11, so that the welding device 3 is arranged close to the first logistics channel 30, so that the handling device 15 can easily transport the welding pressure head for replacement for the welding device 3.

[0082] Preferably, Figure 6 and Fig. 9As shown, in the second embodiment, the negative electrode tab welding logistics line may also include a glue sticking unit 65 and a glue sticking detection device 66. Among them, the glue sticking unit 65 may be arranged on the downstream side of the profilometer 61. The glue sticking unit 65 is used to attach the glue strip to the weld between the negative electrode cover plate 13 and the negative electrode tab. Specifically, the glue sticking unit 65 may include a first channel 6501 and a second channel 6502. The first channel 6501 is connected to the second channel 6502 and is sequentially arranged on the magnetic levitation conveyor line 11. Multiple glue sticking stations 6500 may be arranged in the first channel 6501 and the second channel 6502. Preferably, the first channel 6501 and the second channel 6502 are both provided with two glue sticking stations 6500, and the glue sticking stations 6500 include a glue sticking device and a slideway, and the slideway may extend in a direction perpendicular to the magnetic levitation conveyor line 11. The glue sticking device can be arranged on the slideway and can slide along the slideway to facilitate the glue change of the glue sticking device. The glue sticking device can be a glue sticking machine. The first channel 6501 can be used alternately with the second channel 6502. When the operation station needs to change the glue or fails, the first channel 6501 and the second channel 6502 can be alternated, so as to ensure that the negative pole ear welding logistics line does not stop. The glue sticking detection device 66 can be arranged on the downstream side of the glue sticking part 65, and is used to detect the glue sticking of the battery cell 14. If the glue sticking is qualified, the battery cell 14 moves with the mover 12 to the station on the downstream side, and the station on the downstream side operates on the battery cell 14. If the glue sticking is unqualified, the battery cell 14 continues to move with the mover 12, and the downstream station does not operate on the battery cell 14. The mover 12 carrying the battery cell 14 moves to the battery cell discharge station 71 and then discharges. The glue sticking detection device 66 can be a CCD camera.

[0083] Preferably, Figure 6 and Fig. 9As shown, in the second embodiment, the negative electrode tab welding flow line may further include a first dust removal device 62, a first detection device 63 and a dust removal detection station 64. The first dust removal device 62 is arranged on the downstream side of the glue sticking part 65. The first dust removal device 62 can remove dust from the upper surface of the battery cell 14, the first dust removal device 62 can be a negative pressure dust removal device, and the first detection device 63 can be a CCD camera. The first detection device 63 can be arranged on the downstream side of the first dust removal device 62, and the first detection device 63 can detect the upper surface of the battery cell 14. The dust removal detection station 64 can be arranged on the downstream side of the first detection device 63. The dust removal detection station 64 may include a third dust removal device, a gripping device and a second detection device. The gripping device can grip the battery cell 14, the third dust removal device can remove dust from the lower surface of the battery cell 14, and the second detection device can detect the lower surface of the battery cell 14. Preferably, the third dust removal device may be a negative pressure dust removal device, the gripping device may be a manipulator, and the second detection device may be a CCD camera. When the battery cell 14 passes the detection at the first detection device 63 and the second detection device, the battery cell 14 moves with the mover 12 to the downstream station, and the downstream station operates on the battery cell 14. If the detection fails, the battery cell 14 continues to move with the mover 12, and the downstream station does not operate on the battery cell 14. The mover 12 carrying the battery cell 14 moves to the battery cell discharge station 71 and then discharges it.

[0084] Further, preferably, Figure 6 and Fig. 9 As shown, in the second embodiment, the number of dust removal and detection stations 64 can be 6. During the production process, three movers 12 are grouped as a group. The three movers 12 in a group enter the last three dust removal and detection stations 64 for dust removal and detection. After the operation is completed, the three movers 12 in the group carry the battery cells 14 to flow to the downstream station. The three movers 12 in the next group enter the first three dust removal and detection stations 64 for dust removal and detection. After the operation is completed, the three movers 12 in the group carry the battery cells 14 to flow to the downstream station, and so on.

[0085] In addition, preferably, Figure 6As shown, in the second embodiment, the gluing unit 65, the gluing detection device 66, the first dust removal device 62, the first detection device 63 and the dust removal detection station 64 can be arranged in sequence in the sixth conveying line segment. Such an arrangement enables the battery cell 14 after the gluing is completed to be quickly moved to the first dust removal device 62, the first detection device 63 and the dust removal detection station 64, and the upper and lower surfaces of the battery cell 14 are dusted in time. In addition, the gluing unit 65 can be arranged on the inner side of the magnetic suspension conveyor line 11, so that the gluing unit 65 is arranged close to the first logistics channel 30, so that the handling device 15 can easily transport the auxiliary material gluing film roll for the gluing unit 65.

[0086] Preferably, Figure 6 and Fig.10 As shown, in the second embodiment, the negative electrode tab welding logistics line may further include a withstand voltage detection station 9. The withstand voltage detection station 9 may be arranged on the downstream side of the dust removal detection station 64. The withstand voltage detection station 9 may include a moving-in device 91, a withstand voltage detector 92, and a moving-out device 93. Among them, the moving-in device 91 can move the battery cell 14 on the mover 12 into the withstand voltage detector 92, and the moving-out device 93 can move the battery cell 14 flowing out of the withstand voltage detector 92 to the mover 12. The battery cell 14 that passes the inspection of the withstand voltage detector 92 can be discharged at the unloading station 5, and the battery cell 14 that fails the inspection of the withstand voltage detector 92 can be moved to the battery cell discharge station 71 and then discharged.

[0087] Preferably, the number of the withstand voltage testing stations 9 can be two, and the two withstand voltage testing stations 9 are respectively located on both sides of the magnetic suspension conveyor line 11. In this way, the battery cells 14 flowing to the withstand voltage testing station 9 can be subjected to withstand voltage testing through the withstand voltage testing stations 9 on both sides. In addition, preferably, the moving-in device 91 and the moving-out device 93 can be manipulators.

[0088] Preferably, Figure 6 and Fig.11 As shown, in the second embodiment, the negative electrode tab welding logistics line may further include a material unloading station 5. The material unloading station 5 may be arranged at the downstream side of the withstand voltage testing station 9, and the material unloading station 5 may remove the battery cell 14 on the mover 12. Preferably, the material unloading station 5 may be a plurality of manipulators to grab and carry the battery cell 14.

[0089] More preferably, Figure 6 and Fig.11As shown, in the second embodiment, the negative electrode tab welding logistics line may also include a cell discharge station 71, an inspection and maintenance channel 72, and a cache vertical warehouse 8. Among them, the cell discharge station 71 may be arranged between the withstand voltage detection station 9 and the unloading station 5. The cell discharge station 71 can discharge unqualified cells 14 on the upstream side. Specifically, a first storage bin may be provided at the cell discharge station 71, and unqualified cells 14 may be grabbed into the first storage bin by a manipulator. The inspection and maintenance channel 72 may be arranged between the unloading station 5 and the second docking portion 102. The damaged mover 12 on the upstream side of the inspection and maintenance channel 72 may be discharged through the inspection and maintenance channel 72, while the undamaged mover 12 may be transported to the lower return line through the second docking portion 102, and moved from the second end of the lower return line to the first end to reload the cell 14. Preferably, a manipulator may be provided at the inspection and maintenance passage 72 to grab the damaged mover 12 to the logistics line leading to the inspection and maintenance place. The cache warehouse 8 may be provided between the battery cell discharge station 71 and the inspection and maintenance passage 72. The cache warehouse 8 is used to cache the battery cells 14 that fail to enter the unloading station 5 in time. Preferably, the cache warehouse 8 may include a second storage bin and a manipulator. When the unloading station 5 fails to remove the battery cells 14 on the mover 12 in time, the manipulator of the cache warehouse 8 may move the battery cells 14 to the second storage bin for caching.

[0090] Preferably, Figure 6 As shown, in the second embodiment, the withstand voltage detection station 9, the battery cell discharge station 71, the unloading station 5, the cache vertical warehouse 8 and the inspection and maintenance channel 72 can be arranged in sequence on the seventh conveying line segment, that is, on the same side of the magnetic suspension conveyor line 11. Such an arrangement can avoid interference between the withstand voltage detection station 9 and the dust removal detection station 64, which occupy a large area. The battery cell discharge station 71 and the inspection and maintenance channel 72 are respectively arranged on both sides of the unloading station 5, which conforms to the operation process of first storing unqualified battery cells 14 and then storing damaged movers 12. In addition, the cache vertical warehouse 8 can be arranged on the inner side of the magnetic suspension conveyor line 11, and the cache vertical warehouse 8 can be arranged side by side with the unloading station 5, so that the cache vertical warehouse 8 can quickly cache the battery cells 14, and can improve the space utilization rate and layout rationality of the negative pole ear welding loop. The second docking part 102 can be arranged at the end of the seventh conveying line segment. The undamaged mover 12 can be transported from the second connecting portion 102 to the lower return line, and finally flow back to the first connecting portion 101 (ie, the head end of the fifth conveying line segment) to re-participate in the production cycle.

[0091] In addition, preferably, Figure 6As shown, in the second embodiment, a pressure head centralized placement area 301, a coil centralized placement area 302 and a negative electrode cover plate preparation area 303 may also be provided on the inner side of the magnetic suspension conveyor line 11 (i.e., the inner side of the semi-enclosed structure formed by the magnetic suspension conveyor line 11). Figure 6 As shown in , the pressure head centralized placement area 301 can be set on the left side of the first logistics channel 30, and the pressure head centralized placement area 301 can be set close to the welding device 3. The welding pressure heads replaced by the welding device 3 can be regularly transported in batches to the pressure head centralized placement area 301 to facilitate the handling device 15 to carry. The delivery roll centralized placement area 302 can be set on the left side of the first logistics channel 30, and the delivery roll centralized placement area 302 can be set close to the glue sticking part 65. The handling device 15 can regularly transport the auxiliary material glue sticking film roll to the delivery roll centralized placement area 302 to facilitate manual loading at the glue sticking station 6500. The negative electrode cover plate preparation area 303 can be set on the right side of the first logistics channel 30, and the negative electrode cover plate preparation area 303 can be set opposite to the cover plate handling station 4 on both sides of the first logistics channel 30. Such a setting makes it easy for the handling device 15 to transport the negative electrode cover plate 13 to the cover plate silo 41 for refilling.

[0092] In addition, according to the second aspect of the utility model, a battery installation system is provided, which includes the above-mentioned negative electrode tab welding logistics line. The battery installation system has the same technical effect as the above-mentioned negative electrode tab welding logistics line, which will not be repeated here.

[0093] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application is described in detail with reference to the above-described embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-described embodiments within the technical scope disclosed in the present application, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A negative electrode tab welding logistics line, characterized in that: The negative electrode tab welding logistics line comprises: A mover, used for carrying a battery cell and a negative electrode cover, wherein the battery cell includes a negative electrode tab; A magnetic levitation conveyor line, wherein the magnetic levitation conveyor line is configured to form a semi-enclosed structure with an open side, the magnetic levitation conveyor line includes an upper return line, a lower return line, and a first logistics channel, the mover can move on the upper return line and the lower return line, a first docking portion is provided between a first end of the upper return line and a first end of the lower return line, the first docking portion is used to transport the mover from the lower return line to the upper return line, a second docking portion is provided between a second end of the upper return line and a second end of the lower return line, the second docking portion is used to transport the mover from the upper return line to the lower return line, and the first logistics channel extends into the semi-enclosed structure through the open side; Or the magnetic suspension conveyor line is configured as a loop line connected end to end, the mover moves on the magnetic suspension conveyor line, the magnetic suspension conveyor line is configured on a fixing device, the fixing device is configured on a placement plane, a second logistics channel is enclosed between the fixing device and the placement plane, and the interior of the magnetic suspension conveyor line is connected to the exterior of the magnetic suspension conveyor line through the second logistics channel; A welding device, the welding device is arranged on the side of the magnetic suspension conveyor line, and the welding device can weld the negative electrode tab to the negative electrode cover plate; and A transport device includes a carrying space, and the transport device can enter the interior of the magnetic levitation conveying line or move out from the interior of the magnetic levitation conveying line through the first logistics channel or the second logistics channel.

2. The negative electrode tab welding flow line according to claim 1, characterized in that: The fixing device includes a hollow portion, the hollow portion is recessed in a direction away from the placement plane, and the hollow portion and the placement plane enclose the second logistics channel.

3. The negative electrode tab welding flow line according to claim 1 or 2, characterized in that: The negative electrode tab welding logistics line also includes: a cover plate handling station, the cover plate handling station being arranged at an upstream side of the welding device, the cover plate handling station comprising a cover plate material bin and a moving device, the cover plate material bin storing the negative electrode cover plate, the moving device being capable of moving the negative electrode cover plate in the cover plate material bin to the mover; and A cell loading station is provided between the welding device and the cover plate transporting station, and the cell loading station can move the cell to the mover.

4. The negative electrode tab welding flow line according to claim 3, characterized in that: The negative electrode tab welding flow line further includes a glue sticking unit, which is disposed at the downstream side of the welding device and attaches a glue strip to the weld between the negative electrode cover plate and the negative electrode tab.

5. The negative electrode tab welding flow line according to claim 4, characterized in that: The negative electrode tab welding logistics line also includes: a first dust removal device, the first dust removal device being located at a downstream side of the adhesive laminating portion, and the first dust removal device being capable of removing dust from an upper surface of the battery cell flowing through the first dust removal device; a first detection device, the first detection device being disposed at a downstream side of the first dust removal device, and the first detection device being capable of detecting an upper surface of the battery cell; and A dust removal detection station is arranged on the downstream side of the first detection device, and the dust removal detection station includes a second dust removal device, a first gripping device and a second detection device, the first gripping device can grip the battery cell flowing through the first gripping device, the second dust removal device can remove dust from the lower surface of the battery cell, and the second detection device can detect the lower surface of the battery cell.

6. The negative electrode tab welding flow line according to claim 5, characterized in that: The negative electrode tab welding loop also includes a third dust removal device and a profilometer, and the third dust removal device and the profilometer are both arranged between the glue application part and the welding device. The third dust removal device is located on the upstream side of the profilometer. The third dust removal device can remove dust from the battery cell after welding, and the profilometer can detect the welding point between the negative electrode cover plate and the negative electrode tab.

7. The negative electrode tab welding flow line according to claim 6, characterized in that: The negative electrode tab welding logistics line also includes a withstand voltage testing station, which is arranged on the downstream side of the dust removal testing station. The withstand voltage testing station includes a moving-in device, a withstand voltage tester and a moving-out device. The moving-in device can move the battery cell on the mover into the withstand voltage tester, and the moving-out device can move the battery cell flowing out of the withstand voltage tester to the mover.

8. The negative electrode tab welding flow line according to claim 7, characterized in that: The negative electrode tab welding loop line also includes a material unloading station, which is arranged at the downstream side of the withstand voltage testing station, and the material unloading station can remove the battery cell on the mover flowing through the material unloading station.

9. The negative electrode tab welding flow line according to claim 8, characterized in that: The negative electrode tab welding logistics line also includes: A cell discharge station, which is arranged between the withstand voltage testing station and the unloading station, and can discharge the unqualified cells on the upstream side; An inspection and maintenance passage, the inspection and maintenance passage being arranged between the unloading station and the second connection part, through which damaged movers on the upstream side of the inspection and maintenance passage are discharged, and undamaged movers are transported to the lower return line through the second connection part; and The cache warehouse is arranged between the battery cell discharge station and the inspection and maintenance channel, and the cache warehouse is used to cache the battery cells that have not entered the unloading station in time.

10. A battery installation system, characterized in that: The battery installation system comprises the negative electrode tab welding flow line according to any one of claims 1 to 9.

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