Battery cell pre-welding and cutting magnetic suspension production line and battery production system

Abstract

The utility model relates to the technical field of battery production, in particular to a battery cell pre-welding and cutting magnetic suspension production line and a battery production system. The battery cell pre-welding and cutting magnetic suspension production line comprises a magnetic suspension conveying assembly, a feeding assembly, a tab welding assembly, a tab cutting assembly, a rubberizing assembly and a discharging assembly. The magnetic suspension conveying assembly comprises a conveying line and a plurality of rotor carriers, the feeding assembly, the tab welding assembly, the tab cutting assembly, the rubberizing assembly and the discharging assembly are sequentially arranged at intervals in the conveying direction of the conveying line so as to form a plurality of cell processing stations on the conveying line, and the rotor carriers circularly move on the conveying line; and the battery cells are driven to shuttle to different battery cell processing stations along the conveying direction of the conveying line. The magnetic suspension conveying assembly replaces a traditional conveying mode, the rotor carrier flows back smoothly, the conveying time is saved, the automation degree is high, personnel investment is reduced, the occupied area is small, and the conveying efficiency between stations of the battery assembly line is effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of battery production, and in particular to a battery cell pre-welding, cutting and magnetic levitation production line and a battery production system. Background Art

[0002] With the development of electronic equipment, the market demand for batteries has increased dramatically. Most high-speed production lines in the industry achieve high production capacity by stacking more workstations. The transfer of products between workstations has become a bottleneck for the equipment. At the same time, the equipment occupies a large area, and the workstations are numerous and densely distributed, making maintenance and inspection inconvenient. In particular, the battery pre-welding and cutting production line has many assembly processes, resulting in low overall efficiency of single machines and complete equipment, long production line process distances, high equipment costs, and high labor input costs. The fixture is circulated on the production conveyor line through reflux or manipulators, which makes it difficult to reflux the fixture, and has high requirements for the conveyor line, which is prone to failure during the reflux process. In addition, the existing conveyor line occupies a large area, has a low space utilization rate, and the loading and unloading of materials at each workstation on the conveyor line requires detours around the conveyor line, affecting production efficiency. Utility Model Content

[0003] The purpose of the present application is to provide a battery cell pre-welding and cutting magnetic levitation production line and a battery production system, thereby solving the technical problems existing in the prior art in that the battery pre-welding and cutting production line has many assembly processes, low comprehensive efficiency of single machines and complete equipment, long production line process distance, high equipment cost, high labor input cost, difficult reflow of jigs, high requirements for conveyor lines, and the existing conveyor lines occupy a large area, have low space utilization, and need to bypass the conveyor lines for loading and unloading at each workstation on the conveyor line, thereby affecting production efficiency.

[0004] According to a first aspect of the present application, a battery cell pre-welding and cutting magnetic suspension production line is provided, the battery cell pre-welding and cutting magnetic suspension production line comprising a magnetic suspension conveying assembly, a loading assembly, a tab welding assembly, a tab cutting assembly, a glue sticking assembly and a unloading assembly;

[0005] The magnetic suspension conveying assembly includes a conveying line and a plurality of mover carriers, and the conveying line is provided with an opening to form a material channel for connecting the inside and outside of the conveying line;

[0006] The loading assembly, the tab welding assembly, the tab cutting assembly, the glue application assembly and the unloading assembly are arranged in sequence and at intervals along the conveying direction of the conveyor line to form a plurality of battery cell processing stations on the conveyor line, and the mover carrier circulates on the conveyor line to drive the battery cells to shuttle between different battery cell processing stations along the conveying direction of the conveyor line.

[0007] Preferably, the battery core processing station can accommodate a plurality of the mover carriers, so that a plurality of the battery cores can be processed synchronously;

[0008] The battery core processing stations include a loading station, a welding station, a cutting station, a gluing station and a unloading station.

[0009] Preferably, the loading assembly comprises the loading station and a loading transfer device arranged on the side of the loading station, and the loading transfer device is used to place the battery cell on the mover carrier located at the loading station;

[0010] The tab welding assembly comprises the welding station and a welding device arranged on the side of the welding station, and the welding device is used to pre-weld and fix the tab on the battery cell;

[0011] The tab cutting assembly comprises the cutting station and a cutting device arranged on the side of the cutting station, and the cutting device is used to cut the tab after welding;

[0012] The gluing assembly comprises the gluing station and a gluing device arranged on the side of the gluing station, and the gluing device is used to glue the cut battery cells;

[0013] The unloading assembly includes the unloading station and a unloading transfer device arranged on the side of the unloading station. The unloading transfer device is used to take out the battery cells that are qualified in welding, cutting and gluing in the movable carrier, and the emptied movable carrier flows back to the loading station.

[0014] Preferably, the welding station includes a first welding station and a second welding station, the first welding station and the second welding station accommodate the same number of the mover carriers, the battery cells welded at the first welding station are transferred to the second welding station for welding, and the welding area formed at the first welding station partially overlaps with the welding area formed at the second welding station;

[0015] And / or, a plurality of the tab glue sticking stations are provided, and at least one of the plurality of tab glue sticking stations serves as a spare glue sticking station.

[0016] Preferably, the cell pre-welding and cutting magnetic suspension production line further comprises a detection component, and the detection component comprises:

[0017] A pre-welding inspection component is arranged between the feeding component and the tab welding component, and the pre-welding inspection component includes a first inspection module and a first recovery module, wherein the first inspection module is used to inspect the battery cells and mark the unqualified battery cells, and the first recovery module takes the unqualified battery cells out of the mover carrier and recycles and places them according to the unqualified categories;

[0018] a glue sticking detection component, arranged downstream of the glue sticking component, the glue sticking detection component comprising a second detection module and a second recycling module, the second detection module is used to detect the glue sticking quality and mark the battery cell with unqualified glue sticking quality, and the second recycling module is used to recycle the battery cell marked as unqualified glue sticking quality;

[0019] The second recycling module is arranged downstream of the unloading assembly, and the qualified battery cells are taken away by the unloading assembly, and the unqualified battery cells flow downstream to the second recycling module.

[0020] Preferably, the battery cell pre-welding and cutting magnetic suspension production line further comprises a shaping component for shaping the tabs of the battery cell; the shaping component comprises:

[0021] A first shaping component, arranged upstream of the pre-welding inspection component;

[0022] The second shaping assembly is arranged between the tab welding assembly and the tab cutting assembly.

[0023] Preferably, the battery cell pre-welding and cutting magnetic suspension production line further comprises:

[0024] A material trolley moves back and forth along the material channel to replenish materials or remove waste materials;

[0025] And / or, the maintenance assembly forms a maintenance channel connected to the conveying line, and the mover carrier can move between the conveying line and the maintenance channel.

[0026] Preferably, the battery cell pre-welding and cutting magnetic suspension production line further includes a dust removal component, and the dust removal component includes:

[0027] A first dust removal component is arranged between the tab cutting component and the glue sticking component, and is used to remove dust on the tab of the battery cell;

[0028] The second dust removal component is arranged upstream of the feeding component and is used to remove dust on the mover carrier.

[0029] Preferably, the battery cell pre-welding and cutting magnetic suspension production line further comprises:

[0030] A cache component is arranged upstream of the unloading component, and is used to temporarily store the qualified battery cells and can transport the qualified battery cells to the unloading component.

[0031] According to a second aspect of the present application, a battery production system is provided, including the battery cell pre-welding, cutting and magnetic levitation production line as described above.

[0032] The battery cell pre-welding and cutting magnetic suspension production line according to the present application includes a magnetic suspension conveying assembly, a loading assembly, a tab welding assembly, a tab cutting assembly, a glue sticking assembly and a unloading assembly;

[0033] The magnetic suspension conveying assembly includes a conveying line and a plurality of mover carriers, the conveying line is formed into a closed loop line, and an opening is provided below the conveying line to form a material channel for connecting the inside and outside of the loop of the conveying line;

[0034] The loading assembly, the tab welding assembly, the tab cutting assembly, the glue application assembly and the unloading assembly are arranged in sequence and at intervals along the conveying direction of the conveyor line to form a plurality of battery cell processing stations on the conveyor line, and the mover carrier circulates on the conveyor line to drive the battery cells to shuttle between different battery cell processing stations along the conveying direction of the conveyor line.

[0035] According to the above technical features, the beneficial effects of this application are:

[0036] The cell pre-welding and cutting magnetic levitation production line of the present application has a high degree of automation and reduces manpower input. The traditional conveying method is replaced by a magnetic levitation conveying component, which occupies a small area. The high flexibility, intelligence, modularity, and ultra-high speed of the magnetic levitation system are utilized to effectively improve the transmission efficiency between the various workstations of the battery assembly line. The moving subcarrier drives the cell to pass through the loading component, the tab welding component, the tab cutting component, the gluing component, and the unloading component in sequence to complete a processing flow of pre-welding and cutting of the cell. After completion, the moving subcarrier automatically flows back to the loading component to carry the new cell for pre-welding and cutting. The magnetic levitation conveying method ensures that the moving subcarrier flows back smoothly, greatly shortens the conveying path, saves conveying time, and realizes a significant improvement in the efficiency of single-machine equipment and complete equipment. In addition, a material channel connecting the inner and outer rings of the conveying line is provided below the conveying line, which is used to transport the material batches into the closed loop or to remove the waste in the loop, so as to facilitate loading and unloading of each workstation, shorten the loading and unloading path, and improve the space utilization rate of the cell pre-welding and cutting magnetic levitation production line, so as to achieve stable and efficient production.

[0037] 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

[0038] 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.

[0039] Figure 1 It is a schematic diagram of the overall structure of a cell pre-welding and cutting magnetic suspension production line according to the first embodiment of the present application;

[0040] Figure 2 Show Figure 1 The enlarged schematic diagram of point A in the middle;

[0041] Figure 3 Show Figure 1 The enlarged schematic diagram of point B in the middle;

[0042] Figure 4 Show Figure 1 The enlarged schematic diagram of the center C;

[0043] Figure 5 It is a schematic diagram of the overall structure of a cell pre-welding and cutting magnetic suspension production line according to the second embodiment of the present application;

[0044] Figure 6 It is a structural schematic diagram of the connection mechanism in the battery cell pre-welding and cutting magnetic levitation production line according to the second embodiment of the present application.

[0045] Icons: 10- conveyor line; 101- opening; 110- mover carrier; 11- loading station; 12- welding station; 121- first welding station; 122- second welding station; 13- cutting station; 131- waste treatment area; 14- gluing station; 141- spare gluing station; 15- unloading station; 20- welding device; 30- cutting device; 40- gluing device; 50- first detection module; 51- folding detection module; 52-battery cell detection module; 53-first recovery module; 60-second detection module; 61-second recovery module; 71-first shaping assembly; 72-second shaping assembly; 81-first dust removal assembly; 82-second dust removal assembly; 90-cache assembly; 100-material channel; 200-maintenance channel; 300-manual channel; 400-docking mechanism; 4001-lifting bracket; 4002-docking and conveying part; 500-film placement area. DETAILED DESCRIPTION

[0046] 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.

[0047] 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.

[0048] 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.

[0049] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0050] 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.

[0051] 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.

[0052] The terms used herein are only used to describe various examples and are not used to limit the present disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "include", "comprise" and "have" list the stated features, quantities, operations, components, elements and / or their combinations that exist, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or their combinations.

[0053] 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.

[0054] 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.

[0055] In a first aspect, the present application provides a battery cell pre-welding and cutting magnetic levitation production line, which includes a magnetic levitation conveying assembly, a loading assembly, a tab welding assembly, a tab cutting assembly, a glue application assembly and a unloading assembly.

[0056] Embodiment 1

[0057] Refer to the following Figures 1 to 4 The battery cell pre-welding, cutting and magnetic levitation production line according to the first embodiment of the present application is described in detail.

[0058] In this embodiment, if Figure 1As shown, the magnetic levitation conveying assembly includes a conveying line 10 and a plurality of movable carriers 110. The conveying line 10 is formed into a closed loop. The movable carriers 110 are driven to move in a circular motion along the closed loop conveying line 10 by the magnetic levitation principle. The magnetic levitation conveying principle is a prior art and will not be described in detail here.

[0059] It should be noted that the battery cells transported by the magnetic suspension conveying assembly can be blade batteries or square shell batteries, which are placed horizontally on the mover carrier 110, wherein the protruding direction of the battery tabs is preferably set perpendicular to its conveying direction, so that it is convenient for the processing equipment inside and / or outside the conveyor line 10 (such as the welding device 20, cutting device 30 and glue sticking device 40 described below) to perform corresponding processing and processing. For example, the mover carrier 110 can be formed into a strip structure perpendicular to its conveying direction.

[0060] In a preferred embodiment, Figure 1 As shown, the conveyor line 10 is formed into a rectangular structure, which includes four sides and four corners, so that the loading assembly, the tab welding assembly, the tab cutting assembly, the glue sticking assembly and the unloading assembly can be arranged on the sides of the rectangular structure, so that the various processing steps on the conveyor line 10 are reasonably arranged, and compared with the circular structure and other curved conveyor lines, it is more convenient for the above-mentioned processing equipment to perform high-quality processing and processing of the battery cells.

[0061] Specifically, in this embodiment, Figure 1 As shown, the four sides include a first side, a second side, a third side and a fourth side connected in sequence, wherein the fourth side is connected to the first side to form a closed loop, the first side and the third side are arranged opposite to each other, and the second side and the fourth side are arranged opposite to each other, wherein the battery cells are sequentially processed or inspected in the first side, the second side and the third side for pre-welding and cutting, and the fourth side is mainly used for the recovery of the mover carrier 110 so that the mover carrier 110 that has driven out of the third side returns to the first side via the fourth side to re-engage in the work of transporting the battery cells.

[0062] More specifically, in this embodiment, the first side portion is located Figure 1 The conveyor line 10 on the left side of the drawing has a loading station 11 and a first detection module 50 as described below on the first side, so that the pre-welding processing such as loading, shaping and detection of the battery cells can be realized before the battery cells enter the second side. The battery cell loading and pre-welding detection devices are arranged on the same straight line, which is conducive to the unified management of the production status of each equipment and the collection and recycling of unqualified products. In addition, the second dust removal component 82 described below can be arranged on the first side, specifically upstream of the loading station 11, so that the mover carrier 110 can be effectively cleaned before it re-enters the loading station 11.

[0063] The second side portion is provided with a welding station 12 and a cutting station 13 as described below, wherein on the second side portion, the welding device 20 is arranged upstream of the cutting device 30, and the second shaping component 72 is arranged between the welding device 20 and the cutting device 30, so that the pre-welding and cutting process of the battery cell is mainly concentrated on the second side portion, and the welding station 12 and the cutting station 13 are arranged on the same straight line to avoid the battery cell offset after the mover carrier 110 turns, so that the battery cell after the welding process is completed can be transported along a straight line to the cutting process for production, thereby improving the cutting quality of the cutting process.

[0064] The third side portion is provided with the glue-applying station 14 and the unloading station 15 mentioned below. After cutting, the battery cell is transported to the glue-applying station 14 via the movable carrier for glue-applying and then transferred to the unloading station 15, waiting for the robot or other transport mechanism to take the battery cell out of the movable carrier 110 in the unloading station 15, that is, the third side portion serves to prepare for the removal of the battery cell from the conveyor line 10 after pre-welding and cutting, so as to ensure the smooth subsequent production process of the battery cell. The loading station 11 and the unloading station 15 can be arranged opposite to each other. Such an arrangement also makes the process operations such as loading and unloading of the battery cell respectively arranged at the two opposite ends of the conveyor line 10, so that the production process of the battery is more compliant and forms a slot logic that is easy to control, so as to facilitate the unified management of the production status of the battery cell in the pre-welding and cutting stage. In addition, the opening 101 described below is arranged below the fourth side of the conveyor line 10, so that the fourth side can provide sufficient running space for the material cart while meeting the requirement of introducing the mover carrier 110 into the first side, thereby avoiding interference between the material cart and other equipment (such as welding machines, glue laminating machines, etc.).

[0065] It should be noted that, when the conveyor line 10 is formed into a rectangular structure, a turntable-type transmission structure can be provided at the four corners of the rectangular structure, so as to realize the transfer of the mover carrier 110 between two adjacent sides.

[0066] Furthermore, in this embodiment, if Figures 1 to 4 As shown, the loading assembly, the tab welding assembly, the tab cutting assembly, the glue sticking assembly and the unloading assembly are sequentially arranged in intervals along the conveying direction of the conveyor line 10 to form a plurality of battery cell processing stations on the conveyor line 10, and the mover carrier 110 circulates on the conveyor line 10 ( Figure 1 The arrow shown in the inner ring of the conveyor line 10 is the circular movement direction of the mover carrier 110), so as to drive the battery cells to shuttle between different battery cell processing stations along the conveying direction of the conveyor line 10, so as to perform the tab welding, tab cutting and tab gluing in sequence to complete the process flow of battery cell pre-welding and cutting.

[0067] Furthermore, in this embodiment, if Figures 1 to 4 As shown, the cell processing stations include a loading station 11, a welding station 12, a cutting station 13, a gluing station 14 and a unloading station 15 which are arranged in sequence, and the mover carrier 110 passes through the loading station 11, the welding station 12, the cutting station 13, the gluing station 14 and the unloading station 15 in sequence so that the cell is processed and processed accordingly at each station. When the conveyor line 10 is formed into a rectangular structure, the loading station 11 and the unloading station 15 are preferably arranged at two sides opposite to each other, so as to realize loading on one side of the conveyor line 10 and unloading on the other side, so as to facilitate the subsequent processing of the cell after unloading.

[0068] It should be noted that the mover carrier 110 needs to stay at each workstation for a preset time to ensure the corresponding processing is completed, and the time the mover carrier 110 stays at different workstations can be the same or different, which can be specifically controlled by the control system.

[0069] In a preferred embodiment, Figures 1 to 4 As shown, the battery cell processing station can accommodate multiple mover carriers 110, and the battery cells and the mover carriers 110 are arranged in a one-to-one correspondence, so that multiple battery cells can be processed synchronously. For example, the loading station 11 can accommodate four mover carriers 110, so that four battery cells can be grabbed at a time by the following loading and conveying device, thereby improving the loading efficiency; for another example, the cutting station 13 can accommodate three mover carriers 110, so that three adjacent mover carriers 110 can enter the cutting station 13 synchronously, so that at most three battery cells can be synchronously subjected to the tab cutting process, so as to improve the production efficiency of the entire line. It should be noted that after the cutting process is completed, the three battery cells are synchronously moved out of the cutting station 13, so that the three battery cells that are arranged in the subsequent order and have not been subjected to the cutting process enter the cutting station 13 synchronously, and the movement mode of the multiple mover carriers 110 in other stations is similar.

[0070] Specifically, in this embodiment, Figure 1 and Figure 2 As shown, the loading assembly includes the above-mentioned loading station 11 and a loading transfer device arranged on the side of the loading station 11. The loading transfer device is used to place the battery cells on the mover carrier 110 located at the loading station 11. The loading transfer device can be a robot. The loading transfer device is preferably arranged on the outside of the conveyor line 10, so that it can be repaired in time when it fails; however, the loading transfer device can also be arranged on the inside of the conveyor line 10 (that is, in a closed loop), so that the floor space of the production line can be reduced.

[0071] It should be noted that the loading and transferring device may also be other equipment as long as it can transport the battery cells to be processed to the mover carrier 110 .

[0072] In this embodiment, if Figure 1 and Figure 3 As shown, the pole ear welding assembly includes the above-mentioned welding station 12 and a welding device 20 arranged on the side of the welding station 12, the welding device 20 is used to pre-weld and fix the pole ear on the battery cell, the welding device 20 can be a laser welding machine, and a plurality of welding devices 20 are provided to ensure that the battery cells on all the movable carriers 110 located in the welding station 12 can be welded synchronously; preferably, welding devices 20 are provided on both sides of each movable carrier 110 in the welding station 12, so that when pole ears (including positive ears and negative ears) are provided on both sides of the battery cell, the welding devices 20 located on both sides of the movable carrier 110 can simultaneously weld the positive ears and negative ears on the battery cell, thereby improving the welding efficiency and shortening the residence time of the movable carrier 110 at the welding station 12, thereby improving the production efficiency of the production line.

[0073] It should be noted that the welding device 20 may also be other equipment as long as it can meet the welding processing requirements.

[0074] In a preferred embodiment, Figure 1 and Figure 3 As shown, the welding station 12 includes a first welding station 121 and a second welding station 122. The second welding station 122 is arranged downstream of the first welding station 121. The first welding station 121 and the second welding station 122 accommodate the same number of mover carriers 110. When the battery cell needs to undergo a welding process, the mover carrier 110 drives the battery cell to enter the first welding station 121 first. The battery cell that has completed welding at the first welding station 121 is moved to the second welding station 122 for further welding. The welding area formed at the first welding station 121 partially overlaps with the welding area formed at the second welding station 122. This improves the welding quality, reduces the yield of unqualified welding products, and meets production requirements.

[0075] In this embodiment, if Figure 1 and Figure 4 As shown, the tab cutting assembly includes a cutting station 13 and a cutting device 30 arranged on the side of the cutting station 13. The cutting device 30 is used to cut the tab after welding so that the size of the tab after welding meets the design requirements. The cutting device 30 can be a cutter, and the excess part of the tab can be cut off through the movement of the cutter.

[0076] Furthermore, in this embodiment, if Figure 1 and Figure 4As shown, the cutting device 30 has multiple cutting parts to ensure that the battery cells on all the mover carriers 110 located in the cutting station 13 can be cut synchronously; preferably, the cutting device 30 is arranged on both sides of the cutting station 13, so that when the battery cells are provided with tabs (including positive tabs and negative tabs) on both sides, the cutting devices 30 located on both sides of the mover carrier 110 can simultaneously cut the positive tabs and negative tabs on the battery cells, thereby improving the cutting efficiency and shortening the residence time of the mover carrier 110 at the cutting station 13, thereby improving the production efficiency of the production line.

[0077] It should be noted that the cutting device 30 may also be a laser cutting device, as long as it can meet the cutting processing requirements.

[0078] In addition, in this embodiment, Figure 4 As shown, a waste treatment area 131 is arranged on the side of the cutting station 13, and the waste treatment area 131 is arranged in the inner ring of the closed loop.

[0079] In this embodiment, if Figure 1 and Figure 4 As shown, the gluing assembly includes the above-mentioned gluing station 14 and a gluing device 40 arranged on the side of the gluing station 14. The gluing device 40 glues the battery cells at the gluing station 14. Specifically, the gluing device 40 can be a gluing machine or other gluing mechanisms. The gluing device 40 is used to apply insulating glue to the ends of the battery cells to facilitate subsequent processing of the battery cells.

[0080] Preferably, a plurality of tab glue laminating stations 14 are provided, and the number of mover carriers 110 that can be accommodated in each glue laminating station 14 is the same. At least one of the plurality of tab glue laminating stations 14 serves as a spare glue laminating station 141. The spare glue laminating station 141 is not enabled when other glue laminating stations 14 are performing normal glue laminating work. The mover carrier 110 flows out directly to the spare glue laminating station 141 without stopping. When the glue laminating device 40 in other glue laminating stations 14 fails or needs to be shut down due to glue replacement, the glue laminating device 40 in the spare glue laminating station 141 replaces the shut-down glue laminating device 40. In this way, maintenance and glue replacement can be performed without stopping the machine, the production rhythm is not affected, and the continuity of production is guaranteed.

[0081] It should be noted that a spare welding station may be provided in the welding station 12, and a spare cutting station may be provided in the cutting station 13 to ensure that the production of the whole machine is not affected when the welding device 20 and / or the cutting device 30 fails.

[0082] In this embodiment, if Figure 1As shown, the unloading assembly includes the unloading station 15 and the unloading transfer device arranged on the side of the unloading station 15. The unloading transfer device is used to take out the battery cells that are qualified in welding, cutting and gluing in the mover carrier 110 located at the unloading station 15, and the empty mover carrier 110 flows back to the loading station 11. The unloading transfer device can be a manipulator, and the unloading transfer device is preferably arranged on the outside of the conveyor line 10, so that it can be repaired and processed in time when it fails; however, the unloading transfer device can also be arranged on the inside of the conveyor line 10 (that is, in a closed loop), so that the floor space of the production line can be reduced.

[0083] It should be noted that the material unloading and transferring device may also be other equipment, as long as it can remove the processed and qualified battery cells from the mover carrier 110 .

[0084] In addition, in this embodiment, Figure 1 As shown, an opening 101 is provided below the conveyor line 10 to form a material channel 100 for connecting the inner and outer loops of the conveyor line 10; the cell pre-welding and cutting magnetic suspension production line also includes a material trolley, which can be an AGV trolley. The material trolley moves back and forth along the material channel 100 to replenish materials or remove waste materials, which is convenient for loading and unloading materials at each station, shortening the loading and unloading path, and improving the space utilization and production efficiency of the cell pre-welding and cutting magnetic suspension production line. Specifically, the material trolley carries the film to realize the replenishment of the glue sticking device 40. The material trolley can also collect the above-mentioned parts cut from the pole ear by the cutting device 30 to the waste treatment area 131, and then it can be transported away by other material trolleys.

[0085] In order to improve the processing quality of the pre-welding cutting of the battery cell, in this embodiment, Figures 1 to 4 As shown, the battery cell pre-welding and cutting magnetic levitation production line also includes a detection component, specifically, the detection component includes a pre-welding detection component and a gluing detection component, the pre-welding detection component is arranged between the loading component and the pole ear welding component, the pre-welding detection component includes a first detection module 50 and a first recovery module 53, the first detection module 50 is used to detect the battery cells and mark the unqualified battery cells, the first recovery module 53 will be marked as unqualified battery cells taken out from the motor carrier 110 and recycled according to the unqualified category, the first recovery module 53 includes a sorting mechanism such as a conveyor belt or a robot and a recovery area arranged in partitions.

[0086] More specifically, the first detection module 50 includes a fold detection module 51 and a battery cell detection module 52. The fold detection module 51 can be a visual detection device, such as a CCD camera, which is used to detect whether the pole ear and the diaphragm are flipped or folded. When the battery cell is detected to be unqualified, the fold detection module 51 feeds back a signal to the control system, and the control system can mark the movable carrier 110 that holds the battery cell as having a fold problem, so that the first recycling module 53 can take out the battery cell from the movable carrier 110 and place it in a recycling area for uniformly storing battery cells with fold problems, so as to facilitate their subsequent shaping or scrapping.

[0087] like Figure 2 As shown, there are two groups of battery cell detection modules 52, which are respectively arranged on both sides of the conveyor line 10 to improve the detection efficiency. The battery cell detection module 52 includes a thickness measuring device and a high-voltage testing device. The battery cell is detected in the thickness measuring device to see whether its size meets the standard, and in the high-voltage testing device to see whether it has good insulation. The handling method for products that fail the inspection by the thickness measuring device and the high-voltage testing device is the same as that of the folding detection module 51.

[0088] It should be noted that after the problematic battery cell is taken out from the mover carrier 110 , when the mover carrier 110 flows to the welding station 12 , the welding device 20 corresponding to the mover carrier 110 does not operate, and the same applies to other processing stations.

[0089] In addition, the glue detection component is arranged downstream of the glue assembly to detect the quality of the glue process. The glue detection component includes a second detection module 60 and a second recovery module 61. The second detection module 60 is used to detect the glue quality and mark the battery cells with unqualified glue quality. The second detection module 60 can also be a visual detection device, such as a CCD camera. The second recovery module 61 is used to recycle the battery cells marked as unqualified glue quality; the second recovery module 61 can adopt a sorting mechanism such as a conveyor belt or a manipulator. The second recovery module 61 is arranged downstream of the unloading assembly. The qualified battery cells are taken away by the unloading assembly, and the unqualified battery cells flow downstream to the second recovery module 61.

[0090] Furthermore, in this embodiment, if Figure 1As shown, the cell pre-welding and cutting magnetic suspension production line also includes a shaping component for shaping the cell tabs; specifically, the shaping component includes a first shaping component 71 and a second shaping component 72, the first shaping component 71 is arranged upstream of the pre-welding detection component; the second shaping component 72 is arranged between the tab welding component and the tab cutting component. The first shaping component 71 and the second shaping component 72 can both include a positioning device and a smoothing device, the positioning device is used to adjust the posture of the cell on the mover carrier 110 to straighten the cell to improve the quality of subsequent welding and / or cutting; the smoothing device includes a pressure plate structure, which is used to smooth and straighten the curled tabs, thereby further improving the processing quality of the welding and / or cutting process.

[0091] In a preferred embodiment, Figure 1 As shown, the first shaping component 71 is arranged on the side of the loading station 11, so that when the loading conveyor grabs multiple battery cells at a time and places them on the loading station 11, the mover carrier 110 remains stationary at this time, waiting for the first shaping component 71 to position the battery cells and shape the pole ears. In this way, the layout of each device is reasonable and compact, thereby further reducing the footprint of the conveyor line 10.

[0092] Furthermore, in this embodiment, if Figure 1 As shown, the battery cell pre-welding and cutting magnetic levitation production line also includes a dust removal component. The dust removal component can use a fan or a vacuum pump to perform blowing or suction dust removal. The dust removal component includes a first dust removal component 81 and a second dust removal component 82. The first dust removal component 81 is arranged between the pole ear cutting component and the glue sticking component, and is used to remove dust on the pole ear of the battery cell. The first dust removal component 81 can clean the dust on the surface of the pole ear after cutting, so as to ensure the quality of glue sticking; the second dust removal component 82 is arranged upstream of the loading component, and is used to remove dust on the empty mover carrier 110, so as to ensure that the mover carrier 110 is clean and put back into production.

[0093] In this embodiment, if Figure 1 As shown, the cell pre-welding and cutting magnetic levitation production line also includes a cache component 90, which is arranged upstream of the unloading component for temporarily storing qualified cell batteries and capable of conveying qualified cell batteries to the unloading component; the cache component 90 includes a cache vertical warehouse and a cache robot, the cache robot can transfer qualified cell batteries from the mover carrier 110 to the cache vertical warehouse, when the number of mover carriers 110 in the unloading station 15 exceeds the number of cell batteries, the cache robot can take out qualified cell batteries from the cache vertical warehouse and place them on the empty mover carrier 110 in the unloading station 15, so as to realize the cache component 90 to replenish the unloading station 15, thereby ensuring that the unloading transfer device can grab all the unloading materials at one time.

[0094] In addition, in this embodiment, if Figure 1 As shown, the cell pre-welding and cutting magnetic suspension production line also includes an inspection component, which is formed with an inspection channel 200 connected to the conveyor line 10. The mover carrier 110 can move between the conveyor line 10 and the inspection channel 200. When the mover carrier 110 needs to be inspected, it can be pulled out to the inspection channel 200, which does not affect the operation of the production line. In addition, when it is necessary to reduce the mover carrier 110, it can be cut out of the conveyor line 10 and placed on the inspection channel 200. A plurality of spare mover carriers are also provided on the inspection channel 200. When it is necessary to add a mover carrier 110 to the conveyor line 10, the spare mover carrier can be cut into the conveyor line 10.

[0095] In addition, in this embodiment, if Figure 1 As shown, the cell pre-welding and cutting magnetic suspension production line also includes an artificial channel 300, which can be formed by a step ladder, and maintenance personnel can move from the outside of the conveyor line ring to the inside of the ring via the step ladder, so that emergency response can be carried out. Multiple artificial channels 300 can be set, and multiple artificial channels 300 are dispersedly distributed at different positions of the conveyor line 10. In this way, when a device fails, maintenance personnel can select a step ladder at a suitable location nearby to reach the fault point, thereby improving the timeliness of emergency response.

[0096] Embodiment 2

[0097] Refer to the following Figure 5 and Figure 6 The battery cell pre-welding, cutting and magnetic levitation production line according to the second embodiment of the present application is described in detail.

[0098] In this embodiment, if Figure 5 As shown, the difference between the second embodiment and the first embodiment is that the conveyor line 10 is formed as a non-closed loop with an opening on one side. Specifically, the conveyor line 10 extends in a U-shape, and the U-shaped conveyor line 10 is arranged so that the conveyor line 10 in the second embodiment has three sides connected in sequence, that is, it does not have the fourth side in the first embodiment. The position of the fourth side in the first embodiment is formed as an opening 101 in the present application. In addition, the layout logic of each workstation on the three sides in this embodiment and the processing equipment and / or the detection equipment is generally the same as the layout logic of the first side, the second side and the third side in the first embodiment. The difference is that in the first embodiment, the maintenance channel 200 is arranged on the first side, while in the second embodiment, the maintenance channel 200 is arranged on the third side, which also shows that the setting position of the maintenance channel 200 can meet the quantity adjustment or maintenance requirements of the mover carrier 110.

[0099] In addition, in this embodiment, at least one of an inspection channel 200, a waste disposal area 131, a film placement area 500 and a cache assembly 90 is arranged in the opening 101, wherein the inspection channel 200 can be used to increase or decrease or focus on the inspection of the mover carrier 110 on the conveyor line 10, which is beneficial to improve the reliability of the conveyor line 10; the waste disposal area 131 is used to collect and process the waste from the cutting of the tabs, and the film placement area 500 is used to store the film required for the tab glue sticking.

[0100] In addition, in this embodiment, a connecting line is further provided below the conveyor line 10, and the connecting line is designed to be similar to the conveyor line 10 and also extends in a U shape. A passage connecting the outside world and the opening 101 is formed between the two ends of the conveyor line 10, and the material trolley and the staff can freely enter and exit the opening 101 through the passage, so as to make full use of the opening 101 and improve the area utilization rate and functional diversity of the equipment.

[0101] In this embodiment, docking mechanisms 400 are provided at both ends of the conveyor line 10 and the connecting line. The movable carrier 110 in the conveyor line 10 can carry the battery cells to be processed and shuttle between different processing stations in sequence. After the battery cells have completed the pre-welding and cutting process, they need to be unloaded, so that the battery cells in the movable carrier 110 are taken away. At this time, the movable carrier 110 is in an unloaded state and is located at the end of the conveyor line 10. The unloaded movable carrier 110 moves down to the starting end of the connecting line via the docking mechanism 400. The conveying direction of the connecting line is opposite to the conveying direction of the conveyor line 10, so that after the movable carrier 110 travels to the end of the connecting line, it can move up to the starting end of the conveyor line 10 via the docking mechanism 400, so as to realize the reflow of the movable carrier 110 to the conveyor line 10, so that the movable carrier 110 can carry the new battery cells and shuttle between different processing stations. The degree of automation is high, the assembly line design is realized, the personnel input is greatly reduced, and the cost is effectively reduced.

[0102] Specifically, in this embodiment, Figure 6 As shown, the docking mechanism 400 includes a lifting bracket 4001 and a docking conveying portion 4002 .

[0103] The docking conveying unit 4002 is movably arranged on the lifting bracket 4001 so as to be lifted and lowered between the conveying line 10 and the docking line. That is, the docking conveying unit 4002 can be lifted to a position corresponding to the height of the conveying line 10, or can be lowered to a position corresponding to the height of the docking line.

[0104] When the connecting conveying unit 4002 rises to the conveying line 10, the connecting conveying unit 4002 is connected to the end of the conveying line 10; when the connecting conveying unit 4002 descends to the connecting line, the connecting conveying unit 4002 is connected to the end of the connecting line.

[0105] Therefore, in one docking cycle, the docking conveying part 4002 on the docking mechanism 400 at the unloading end of the conveyor line 10 is lifted on the lifting bracket 4001 until it rises to the conveyor line 10, and the docking conveying part 4002 at the unloading end receives the empty mover carrier 110 that has completed unloading. After receiving a sufficient number of mover carriers 110, the docking conveying part 4002 at the unloading end descends on the lifting bracket 4001 until it descends to the docking line, and the mover carrier 110 moves along the docking conveying part 4002 to the docking line, and moves along the docking line to the loading end.

[0106] The docking mechanism 400 at the loading end of the docking line has a docking conveyor 4002 that descends on the lifting bracket 4001 until it reaches the docking line, and the mover carrier 110 moves onto the docking conveyor 4002. After receiving a sufficient number of mover carriers 110, the docking conveyor 4002 at the loading end is lifted on the lifting bracket 4001 until it rises to the conveyor line 10, and the mover carrier 110 moves along the docking conveyor 4002 to the conveyor line 10, so as to continue to carry out the cell carrying operation on the production line.

[0107] In this embodiment, the conveying line 10, the connecting line and the connecting conveying part 4002 are all connected to the movable carrier 110 by magnetic suspension, so as to reduce the friction of the movable carrier 110 during the movement, making the movable carrier 110 drive the circulation movement of the battery cell more flexible and efficient.

[0108] The cell pre-welding and cutting magnetic suspension production line according to the present application has a high degree of automation and reduces the input of personnel. The traditional conveying method is replaced by the magnetic suspension conveying assembly, which occupies a small area. The high flexibility, intelligence, modularity, high speed, high acceleration and other characteristics of the magnetic suspension system are utilized to effectively improve the transmission efficiency between the various stations of the battery assembly line; the conveying line forms a closed loop or is set to a U-shaped structure with an opening in a connecting conveying manner, so that the mover carrier drives the cell to pass through the loading assembly, the pole ear welding assembly, the pole ear cutting assembly, the glue sticking assembly and the unloading assembly in sequence. The pre-welding and cutting process of the battery cells is completed once. After completion, the mover carrier automatically flows back to the loading assembly to carry the new battery cells for pre-welding and cutting. The magnetic levitation conveying method ensures the smooth flow of the mover carrier, greatly shortens the conveying path and saves conveying time. In addition, a material channel connecting the inner and outer rings of the conveyor line is arranged below the conveyor line, which is used to transport the materials in batches into the closed loop or to take out the waste materials in the loop, so as to facilitate loading and unloading of each workstation, shorten the loading and unloading path, and improve the space utilization and production efficiency of the magnetic levitation production line for pre-welding and cutting of battery cells.

[0109] The second aspect of the present application also provides a battery production system, including the battery cell pre-welding, cutting and magnetic levitation production line of the above-mentioned embodiment, and thus has all the beneficial technical effects of the battery cell pre-welding, cutting and magnetic levitation production line, which will not be repeated here.

[0110] 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 has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that any technician familiar with this technical field can still modify the technical solutions recorded in the aforementioned embodiments within the technical scope disclosed in the present application, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be covered by the protection scope of the present application.

Claims

1. A battery cell pre-welding and cutting magnetic suspension production line, characterized in that: The battery core pre-welding and cutting magnetic suspension production line comprises a magnetic suspension conveying assembly, a loading assembly, a tab welding assembly, a tab cutting assembly, a glue sticking assembly and a blanking assembly; The magnetic suspension conveying assembly includes a conveying line and a plurality of mover carriers, and the conveying line is provided with an opening to form a material channel for connecting the inside and outside of the conveying line; The loading assembly, the tab welding assembly, the tab cutting assembly, the glue application assembly and the unloading assembly are arranged in sequence and at intervals along the conveying direction of the conveyor line to form a plurality of battery cell processing stations on the conveyor line, and the mover carrier circulates on the conveyor line to drive the battery cells to shuttle between different battery cell processing stations along the conveying direction of the conveyor line.

2. The battery cell pre-welding and cutting magnetic suspension production line according to claim 1 is characterized in that: The battery core processing station can accommodate a plurality of the mover carriers, so that a plurality of the battery cores can be processed synchronously; The battery core processing stations include a loading station, a welding station, a cutting station, a gluing station and a unloading station.

3. The battery core pre-welding and cutting magnetic suspension production line according to claim 2 is characterized in that: The loading assembly includes the loading station and a loading transfer device arranged on the side of the loading station, and the loading transfer device is used to place the battery cell on the mover carrier located at the loading station; The tab welding assembly comprises the welding station and a welding device arranged on the side of the welding station, and the welding device is used to pre-weld and fix the tab on the battery cell; The tab cutting assembly comprises the cutting station and a cutting device arranged on the side of the cutting station, and the cutting device is used to cut the tab after welding; The gluing assembly comprises the gluing station and a gluing device arranged on the side of the gluing station, and the gluing device is used to glue the cut battery cells; The unloading assembly includes the unloading station and a unloading transfer device arranged on the side of the unloading station. The unloading transfer device is used to take out the battery cells that are qualified in welding, cutting and gluing in the movable carrier, and the emptied movable carrier flows back to the loading station.

4. The battery core pre-welding and cutting magnetic suspension production line according to claim 2 or 3, characterized in that: The welding station includes a first welding station and a second welding station, the first welding station and the second welding station accommodate the same number of the mover carriers, the battery cells welded at the first welding station are transferred to the second welding station for welding, and the welding area formed at the first welding station partially overlaps with the welding area formed at the second welding station; And / or, a plurality of the tab glue sticking stations are provided, and at least one of the plurality of tab glue sticking stations serves as a spare glue sticking station.

5. The battery pre-welding and cutting magnetic suspension production line according to claim 1 is characterized in that: The battery cell pre-welding cutting and magnetic suspension production line also includes a detection component, which includes: A pre-welding inspection component is arranged between the feeding component and the tab welding component, and the pre-welding inspection component includes a first inspection module and a first recovery module, wherein the first inspection module is used to inspect the battery cells and mark the unqualified battery cells, and the first recovery module takes the unqualified battery cells out of the mover carrier and recycles and places them according to the unqualified categories; a glue sticking detection component, arranged downstream of the glue sticking component, the glue sticking detection component comprising a second detection module and a second recycling module, the second detection module is used to detect the glue sticking quality and mark the battery cell with unqualified glue sticking quality, and the second recycling module is used to recycle the battery cell marked as unqualified glue sticking quality; The second recycling module is arranged downstream of the unloading assembly, and the qualified battery cells are taken away by the unloading assembly, and the unqualified battery cells flow downstream to the second recycling module.

6. The battery cell pre-welding and cutting magnetic suspension production line according to claim 5 is characterized in that: The battery cell pre-welding cutting and magnetic suspension production line further includes a shaping component for shaping the tabs of the battery cell; the shaping component includes: A first shaping component, arranged upstream of the pre-welding inspection component; The second shaping assembly is arranged between the tab welding assembly and the tab cutting assembly.

7. The battery cell pre-welding and cutting magnetic suspension production line according to claim 1, characterized in that: The battery core pre-welding cutting and magnetic suspension production line also includes: A material trolley moves back and forth along the material channel to replenish materials or remove waste materials; And / or, the maintenance assembly forms a maintenance channel connected to the conveying line, and the mover carrier can move between the conveying line and the maintenance channel.

8. The battery cell pre-welding and cutting magnetic suspension production line according to claim 1, characterized in that: The battery cell pre-welding cutting and magnetic suspension production line also includes a dust removal component, and the dust removal component includes: A first dust removal component is disposed between the tab cutting component and the glue sticking component, and is used to remove dust on the tab of the battery cell; The second dust removal component is arranged upstream of the feeding component and is used to remove dust on the mover carrier.

9. The battery cell pre-welding and cutting magnetic suspension production line according to claim 1, characterized in that: The battery core pre-welding cutting and magnetic suspension production line also includes: A cache component is arranged upstream of the unloading component, and is used to temporarily store the qualified battery cells and can transport the qualified battery cells to the unloading component.

10. A battery production system, characterized in that: A battery cell pre-welding, cutting and magnetic levitation production line comprising the battery cell pre-welding, cutting and magnetic levitation production line according to any one of claims 1 to 9.

Images