Battery cell shell production line and battery production system

Abstract

The present application relates to the technical field of battery automation production equipment, and in particular to a battery cell shell production loop line and a battery production system. The battery cell shell production loop line includes a magnetic levitation transport line, a material loading unit, a shell penetration unit, a first polarity press-fit welding unit, and a second polarity cover assembly unit. The transport line body includes a first transport line, a second transport line, and a lifting and landing part. The second transport line is higher than the first transport line. The two ends of the second transport line are respectively connected to the two ends of the first transport line by the lifting and landing part, so that the transport line body is surrounded to form a closed loop, and a passage that can enter the interior of the closed loop is formed below the second transport line of the transport line body. The battery cell shell production loop line and battery production system provided by the present application effectively improve the transmission efficiency between each station of the battery assembly line; improve the space utilization rate of the battery cell shell production loop line, and facilitate loading and unloading of each station, shortening the loading and unloading path.

Description

Technical Field

[0001] The present application relates to the technical field of battery automated production equipment, and in particular to a battery cell shell production loop and a battery production system. Background Art

[0002] With the rapid development of electronic equipment, the market demand for square shell blade batteries has increased dramatically. Most of the high-speed production lines in the industry achieve high production capacity by stacking more workstations. At the same time, the transfer of products between workstations has become a bottleneck of the equipment. At the same time, the equipment occupies a large area, and there are many workstations and they are densely distributed, making maintenance and inspection inconvenient. How to solve the above technical problems to improve the production capacity of square shell blade battery production lines has become an urgent problem to be solved in this field.

[0003] Moreover, the current square shell blade battery cell shell production line usually includes processes such as cell shell penetration, bipolar cover assembly and good product inspection of each process. Because there are many assembly processes, the production line process distance is long, which makes the reflow of assembly jigs difficult. Today's jig reflow usually includes two methods. One method is the double-layer conveyor line method, that is, a jig reflow line with the same length as the production conveyor line is arranged on the upper / lower layer of the production conveyor line, and the jig is circulated at the ends of the production conveyor line and the jig reflow line through lifting equipment or manipulators. However, in this method, the jig reflow path is long and the probability of failure during the reflow process is high; the other method is the loop line transmission method, that is, the production conveyor line and the jig reflow line are enclosed to form a closed-loop conveyor line. In this way, the jig reflow line transmission distance can be greatly shortened, but the closed-loop conveyor line occupies a large space, and each workstation of the production conveyor line needs to bypass the closed-loop conveyor line for loading and unloading, which affects production efficiency. Summary of the invention

[0004] The purpose of the present application is to provide a battery cell shell production loop line and a battery production system, so as to solve the technical problems existing in the prior art to a certain extent, that is, the difficulty in increasing production capacity, the long return path of the jig in the double-layer conveyor line method, the high probability of failure during the return process, the large space occupied by the closed-loop conveyor line in the loop line transmission method, and the need to bypass the closed-loop conveyor line for loading and unloading of materials at each workstation of the production conveyor line, which affects the production efficiency.

[0005] According to a first aspect of the present application, a battery cell shell production loop is provided, comprising a magnetic suspension transport line, a material feeding unit, a shell penetration unit, a first polarity press-fit welding unit, and a second polarity cover assembly unit, wherein the magnetic suspension transport line comprises a transport line body and a mover, wherein the mover can move along the transport line body under the magnetic induction of the transport line body;

[0006] The transport line body comprises a first transport line, a second transport line and a lifting and landing part, the transport plane where the second transport line is located is higher than the transport plane where the first transport line is located, and the two ends of the second transport line are respectively connected to the two ends of the first transport line by the lifting and landing part, so that the transport line body is surrounded to form a closed loop, and a passage capable of entering the interior of the closed loop is formed below the location of the second transport line of the transport line body;

[0007] The material feeding unit, the shell penetration unit, the first polarity press-fit welding unit and the second polarity cover assembly unit are arranged in sequence along the conveying direction of the transport line.

[0008] Preferably, a material loading station is provided on the transport line body;

[0009] The material feeding unit includes a material storage part and a material feeding gripper, the material storage part is used to store the battery shell, and the material feeding gripper can grab the battery shell in the material storage part to the mover in the material feeding station.

[0010] Preferably, the material storage portion comprises a material transmission portion and a material carrying portion, the material carrying portion is used to support the battery housing, the material transmission portion comprises a material inlet and a material outlet, the material carrying portion can flow into the material transmission portion through the material inlet and flow out of the material transmission portion through the material outlet;

[0011] The material inlet and the material outlet are both arranged on the channel;

[0012] And / or, the material feeding unit further comprises:

[0013] A conveying vehicle, used for loading the cargo portion, and the conveying vehicle can pass through the passage;

[0014] A first visual inspection unit is provided at a downstream position of the material loading station to detect the weld position of the battery housing on the mover;

[0015] A deviation correction lever, which is in communication with the first visual unit and is disposed at a downstream position of the first visual unit, so as to correct the battery housing placed on the mover in the opposite direction according to information fed back by the first visual detection unit;

[0016] The first dust removal unit is arranged at a downstream position of the deviation correction lever to remove dust from the inside of the battery housing on the mover.

[0017] Preferably, the shell penetration unit includes a shell penetration part and a shell penetration gripper. The shell penetration part is arranged on one side of the transport line body, and is used to penetrate the battery cell to be processed into the battery shell. The shell penetration gripper can grab the battery shell on the mover to the shell penetration part, and grab the battery cell to be processed after the shell penetration process is completed by the shell penetration part to the mover.

[0018] Preferably, the shell penetration unit comprises a plurality of the shell penetration parts and a plurality of the shell penetration grippers, the plurality of the shell penetration parts are sequentially arranged along the transmission direction of the transport line body, and each of the shell penetration parts has at least one shell penetration gripper correspondingly arranged thereto;

[0019] The shell-penetrating part includes a plurality of shell-penetrating devices, which are sequentially arranged along the conveying direction of the transport line body, and the shell-penetrating gripper can reciprocate in the conveying direction of the transport line body, so that the shell-penetrating gripper can respectively dock with the corresponding shell-penetrating devices in the shell-penetrating part one by one;

[0020] And / or, the shell penetration unit further comprises:

[0021] A first defective product outflow portion is disposed at a downstream position of the shell penetration portion to flow defective products generated in an upstream process of the transport line body located at the first defective product outflow portion out of the transport line body;

[0022] The second dust removal section is arranged at a downstream position of the shell penetration section to remove dust from the battery cells to be processed that have completed the shell penetration process.

[0023] Preferably, the first polarity press-fitting welding unit includes a pre-welding gripper, a press-fitting part and a welding part. The press-fitting part is arranged on one side of the transport line body, and the welding part is arranged at the end of the press-fitting part facing away from the transport line body, so as to weld and fix the cover plate on the first polarity side of the battery cell to be processed to the battery shell. The pre-welding gripper can grab the battery cell to be processed on the mover to the press-fitting part, and grab the battery cell to be processed on which the welding process is completed on the press-fitting part to the mover.

[0024] Preferably, the first polarity press-fit welding unit comprises a plurality of the pre-welding grippers, a plurality of the press-fitting parts and a plurality of the welding parts, the plurality of the press-fitting parts are sequentially arranged along the conveying direction of the conveying line body, and each of the press-fitting parts has at least one pre-welding gripper and at least one welding part arranged correspondingly thereto;

[0025] The press-fitting part includes a plurality of press-fitting devices, which are sequentially arranged along the conveying direction of the conveying line body, and the pre-welding gripper and the welding part can both reciprocate in the conveying direction of the conveying line body, so that the pre-welding gripper and the welding part can respectively dock with the press-fitting devices in the press-fitting part corresponding to them one by one;

[0026] And / or, the first polarity press-fit welding unit also includes a second visual inspection unit, which is arranged at a downstream position of the press-fit unit to detect the welding quality of the cover plate and the battery shell on the first polarity side of the battery cell to be processed.

[0027] Preferably, the second polarity cover plate assembly unit comprises:

[0028] A second polarity cover plate storage portion, disposed on one side of the transport line body, for storing second polarity cover plates;

[0029] A second polarity cover plate material gripper, used for grabbing the second polarity cover plate on the second polarity cover plate material storage part to the corresponding mover;

[0030] A second polarity cover plate welding portion is provided at a downstream position of the second polarity cover plate feeding gripper, and is used for welding and fixing the second polarity pole ear of the battery cell to be processed and the second polarity cover plate;

[0031] A gluing part, arranged at a downstream position of the second polarity cover plate welding part, for gluing the welding seams of the second polarity electrode ear of the processed battery cell and the second polarity cover plate;

[0032] A second polarity cover plate bending portion is disposed at a downstream position of the adhesive portion and is used to bend the second polarity tab so as to cover the second polarity cover plate at the end of the battery housing at the second polarity end;

[0033] A second polarity cover plate pre-pressing portion, disposed at a downstream position of the second polarity cover plate bending portion, capable of applying a force directed toward the first polarity side of the battery to be processed to the second polarity cover plate, so that at least a portion of the second polarity cover plate is pressed into the battery housing;

[0034] A material unloading gripper, arranged at a downstream position of the second polarity cover plate pre-pressing portion, used to move the battery cells to be processed that have completed the second polarity cover plate pre-pressing process on the mover and are qualified products out of the transport line body;

[0035] And / or, the first transport line includes a first line segment, a second line segment, a third line segment, a fourth line segment and a fifth line segment connected in sequence along its conveying direction, wherein the starting point of the first line segment and the end point of the fifth line segment are respectively connected to the two ends of the second transport line, the first line segment, the third line segment, the fifth line segment and the second transport line all extend along the first direction, the second line segment and the fourth line segment both extend along the second direction, the shell penetration unit is arranged on the second line segment, the unloading gripper is arranged on the fourth line segment, and the first direction intersects with the second direction.

[0036] Preferably, the second polarity cover plate assembly unit further comprises:

[0037] A third visual inspection unit is provided at a downstream position of the first polarity press-fit welding unit and is used to detect the position of the second polarity tab of the battery cell to be processed;

[0038] A third dust removal part is provided between the second polarity cover plate welding part and the adhesive part, and is used to remove welding dust of the battery cell to be processed;

[0039] A profilometer detection part, disposed between the second polarity cover plate welding part and the glue sticking part, for detecting welding quality between the second polarity tab of the battery cell to be processed and the second polarity cover plate;

[0040] a fourth visual inspection section, disposed downstream of the gluing section, for inspecting the quality of the process completed at the gluing section;

[0041] A second defective product outflow portion is disposed at a downstream position of the unloading gripper to flow defective products generated in an upstream process of the transport line body located at the second defective product outflow portion out of the transport line body;

[0042] A first mover maintenance unit is disposed at a downstream position of the unloading gripper and is capable of moving the mover out of the transport line body to facilitate maintenance of the mover;

[0043] And / or, the transport line body also includes a rotating part, which is arranged between the first polarity press-fit welding unit and the second polarity cover assembly unit, and the rotating part can rotate the mover flowing to the rotating part by a predetermined angle so that the positions of the two polarities of the battery cells to be processed on the mover are reversed.

[0044] According to the second aspect of the present application, a battery production system is provided, comprising the battery cell shell production loop line described in any of the above technical solutions, and thus having all the beneficial technical effects of the battery cell shell production loop line, which will not be repeated here.

[0045] Compared with the prior art, the beneficial effects of this application are:

[0046] The battery cell shell production loop provided by the present application, on the one hand, replaces the traditional conveyor belt transmission with the transmission method of the magnetic levitation transport loop line, and integrates the transportation and processing of the assembly line mover fixture, and utilizes the high flexibility, intelligence, modularity, high speed, high acceleration and other characteristics of the magnetic levitation system to effectively improve the transmission efficiency between the various stations of the battery assembly line; on the other hand, by setting the second transport line higher than the first transport line, and connecting the two ends of the first transport line to the two ends of the second transport line via the lifting and landing parts, so that the transport line body is surrounded to form a closed loop, and the position of the transport line body below the second transport line forms a channel that can enter the interior of the space surrounded by the transport line body, In this way, after the mover passes the battery cells to be processed through the material loading unit, the shell penetration unit, the first polarity press-fit welding unit and the second polarity cover assembly unit in sequence, the mover can be transmitted to the location of the material loading unit again via the closed loop line to realize the circulation of the mover. Compared with the existing double-layer conveyor line transmission method, the distance of the mover's reflux transmission is greatly shortened, which effectively reduces the failure rate of the mover's reflux. In addition, through the above-mentioned channel, it is convenient for personnel / materials to enter the interior of the space enclosed by the closed conveyor line. Not only can the internal storage materials of the space enclosed by the closed loop line be utilized to improve the space utilization rate of the battery cell shell production line, but it is also convenient for each workstation to load and unload materials and shorten the loading and unloading path.

[0047] 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

[0048] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0049] Figure 1 A schematic diagram of the layout structure of a battery cell shell production loop line provided in an embodiment of the present application;

[0050] Figure 2 for Figure 1 The enlarged structural schematic diagram of the battery cell shell production loop at point A is provided;

[0051] Figure 3 for Figure 1 An enlarged structural schematic diagram of the battery cell shell production loop at point B is provided.

[0052] Reference numerals:

[0053] 01-upstream production line; 011-cell unloading gripper; 111-first line segment; 112-second line segment; 113-third line segment; 114-fourth line segment; 115-fifth line segment; 12-second transport line; 131-first turntable; 132-second turntable; 133-third turntable; 14-passageway; 141-roadway; 142-sidewalk; 15-lifting and landing part; 161-first defective product outflow part; 162-second defective product outflow part; 171-first mover maintenance part; 172-second mover maintenance part; 21-material loading station; 22-material loading gripper; 23-material storage part; 231-material transmission part; 2311-material inlet; 2312-material outlet ;232-carrying part;24-transfer car;25-first visual inspection part;26-correction lever;27-fourth dust removal part;28-first dust removal part;31-shell penetration device;32-shell penetration gripper;33-second dust removal part;41-pre-welding gripper;42-pressing part;43-welding part;44-second visual inspection part;51-third visual inspection part;52-second polarity cover plate storage part;53-second polarity cover plate feeding gripper;54-second polarity cover plate welding part;55-third dust removal part;56-contour meter inspection part;57-gluing part;58-fourth visual inspection part;59-second polarity cover plate bending part;50-second polarity cover plate pre-pressing part;61-bar scanning part;62-unloading station.

[0054] F1-first direction; F2-second direction. DETAILED DESCRIPTION

[0055] The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0056] The components of the embodiments of the present application generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed, but merely represents the selected embodiments of the present application.

[0057] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0058] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0059] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0060] Refer to the following Figures 1 to 3 A battery cell casing production line and a battery production system according to some embodiments of the present application are described.

[0061] See also Figures 1 to 3 As shown, an embodiment of the first aspect of the present application provides a battery cell shell production loop line, which includes a magnetic levitation transport line, a material feeding unit, a shell penetration unit, a first polarity press-fit welding unit, and a second polarity cover assembly unit. The magnetic levitation transport line includes a transport line body and a mover, and the mover can move along the transport line body under the magnetic induction of the transport line body. The transport line body includes a first transport line, a second transport line 12, and a landing part 15. The transmission plane where the second transport line 12 is located is higher than the transmission plane where the first transport line is located. The two ends of the second transport line 12 are respectively connected to the two ends of the first transport line by the landing part 15, so that the transport line body is surrounded to form a closed loop, and a channel 14 that can enter the inside of the closed loop is formed below the second transport line 12 of the transport line body. The material feeding unit, the shell penetration unit, the first polarity press-fit welding unit, and the second polarity cover assembly unit are arranged in sequence along the transmission direction of the transport line body.

[0062] The battery cell shell production loop provided by the present application, on the one hand, replaces the traditional conveyor belt transmission with the transmission method of the magnetic levitation transport loop line, and has an integrated design of assembly line mover fixture transportation and processing, and utilizes the high flexibility, intelligence, modularity, high speed, high acceleration and other characteristics of the magnetic levitation system to effectively improve the transmission efficiency between various stations of the battery assembly line; on the other hand, by setting the second transport line 12 to be higher than the first transport line, and making the two ends of the first transport line connected to the two ends of the second transport line 12 via the lifting and landing parts 15, so that the transport line body is enclosed to form a closed loop, and the position of the transport line body below the second transport line 12 forms a passage that can enter the interior of the space enclosed by the transport line body. Channel 14, in this way, after the mover passes the battery cell to be processed through the material loading unit, the shell penetration unit, the first polarity press-fit welding unit and the second polarity cover assembly unit in sequence, the mover can be transmitted to the position of the material loading unit again via the closed loop line to realize the circulation of the mover. Compared with the existing double-layer conveying line transmission method, the distance of the mover's reflux transmission is greatly shortened, which effectively reduces the failure rate of the mover's reflux, and through the above-mentioned channel 14, it is convenient for personnel / materials to enter the interior of the space enclosed by the closed conveying line, which can not only utilize the internal storage materials of the space enclosed by the closed loop line to improve the space utilization rate of the battery cell shell production line, but also facilitate loading and unloading of each workstation and shorten the loading and unloading path.

[0063] It should be noted that the above-mentioned magnetic levitation transport line can be understood as a magnetic levitation transmission device that uses the magnetic levitation principle to achieve transmission (for example, the CN220299746U magnetic levitation transmission device and magnetic levitation transmission line disclosed in Chinese patent document). The transmission principle and transmission structure of the device are both existing technologies in the field and will not be repeated here.

[0064] Preferably, if Figure 1 As shown, the number of the above-mentioned lifting and landing parts 15 can be two, and the two lifting and landing parts 15 are respectively used to connect the two ends of the first transportation line and the second transportation line 12 corresponding to each other.

[0065] Preferably, the lifting and landing part 15 can be a magnetic levitation conveying device connecting the first transport line and the second transport line 12, but it is not limited thereto. As long as the conveying rhythm of the first transport line can be met, the lifting and landing part 15 can also be an elevator, a manipulator or other lifting equipment.

[0066] Preferably, if Figures 1 to 3 As shown, in the direction perpendicular to the conveying line, the size of the mover is larger than the width of the conveying line, so that both ends of the mover extend beyond the conveying line. In this way, on the one hand, the carrying space of the action can be expanded; on the other hand, when the battery cell to be processed is placed on the mover, the battery cell to be processed can extend relative to the conveying line, so that the processing equipment on the conveying line can act on the battery cell to be processed.

[0067] Preferably, if Figure 1 and Figure 3 As shown, when the battery cell to be processed is placed on the mover, the two poles of the battery cell to be processed are relatively arranged at the two ends of the battery cell to be processed in a predetermined direction, and the predetermined direction is perpendicular to the conveying direction of the transport line. In other words, when the battery cell to be processed is placed on the mover, the two poles of the battery cell to be processed (i.e., the positive pole and the negative pole) can respectively extend out on both sides of the transport line in a direction perpendicular to its conveying direction.

[0068] Preferably, the mover may include a transmission part and a fixture part connected to each other, the mover is connected to the transport line body through the transmission part, and the fixture part is used to place the battery cells to be processed. Correspondingly, the size of the fixture part in the transmission direction perpendicular to the closed conveyor line may be larger than the width of the transport line body to ensure the stability of the mover in carrying the battery cells to be processed.

[0069] Preferably, if Figure 1 As shown, the first transport line may include a first line segment 111, a second line segment 112, a third line segment 113, a fourth line segment 114 and a fifth line segment 115 connected in sequence along its transmission direction, wherein the starting point of the first line segment 111 and the end point of the fifth line segment 115 are respectively connected to the two ends of the second transport line 12, and the first line segment 111, the third line segment 113, the fifth line segment 115 and the second transport line 12 can all extend along the first direction F1, and the second line segment 112 and the fourth line segment 114 can both extend along the second direction F2. The above-mentioned shell threading unit is arranged on the second line segment 112, and the following material unloading gripper can be arranged on the fourth line segment 114 to ensure that the battery cells to be processed in the battery cell shelling production line flow along the first direction F1, so as to facilitate the overall transfer of the products of the following battery production system.

[0070] like Figure 1 As shown, F1 shown in the figure may be an example of a first direction, and F2 shown in the figure may be an example of a second direction. The first direction F1 may intersect with the second direction F2, so as to form a closed loop around the transport line. Preferably, the first direction F1 and the second direction F2 are perpendicular to each other, so that the closed loop is rectangular, so as to adapt to most factory shapes, save space occupied by the battery cell shell production loop, and facilitate the docking of the battery cell shell production loop with other production loops, thereby improving the adaptability of the battery cell shell production loop. However, it is not limited to this, and the shape formed by the above-mentioned closed loop can be adjusted according to the shape of the factory or according to the demand adaptability. For example, the closed loop can also be circular, elliptical, polygonal or other irregular shapes.

[0071] Correspondingly, if Figure 1As shown, the first transport line may further include a rotating portion, through which the first line segment 111 and the second line segment 112, the second line segment 112 and the third line segment 113, the third line segment 113 and the fourth line segment 114, and the fourth line segment 114 and the fifth line segment 115 may be connected to achieve a rotation angle of the mover between the line segments.

[0072] Preferably, if Figure 1 As shown, the rotating part may include a first rotating platform 131, and the first line segment 111 and the second line segment 112, the second line segment 112 and the third line segment 113, and the third line segment 113 and the fourth line segment 114 may be connected via the first rotating platform 131. The first rotating platform 131 can drive the mover to rotate at an angle of (n*360°+∠α), where n is an integer, and ∠α is the angle between the first direction F1 and the second direction F2, so as to realize the turning of the mover between the first line segment 111 and the second line segment 112, between the second line segment 112 and the third line segment 113, and between the third line segment 113 and the fourth line segment 114.

[0073] Preferably, if Figure 1 As shown, the rotating part may further include a second rotating table 132, which may be disposed between the first polarity press-fit welding unit and the second polarity cover assembly unit. The second rotating table 132 is capable of rotating the mover flowing to the second rotating table 132 by a predetermined angle, so that the positions of the two polarities of the battery cells to be processed on the mover are reversed, thereby realizing that the first polarity press-fit welding unit and the second polarity cover assembly unit are both disposed on the same side of the transport line. Specifically, the second rotating table 132 is capable of driving the mover to rotate by an angle of (2n+1)×180°.

[0074] Preferably, if Figure 1 As shown, the first polarity press-fit welding unit and the second polarity cover assembly unit can both be arranged on the inner side of the closed loop to further improve the space utilization of the battery cell shell production loop and save the space occupied by it.

[0075] Preferably, if Figure 1As shown, the rotating part may further include a third rotating platform 133, and the fourth line segment 114 and the fifth line segment 115 may be connected via the third rotating platform 133. The third rotating platform 133 may drive the rotor to rotate at an angle of [(2n+1)×180°+∠α], so that the rotor can achieve an angle turn between the fourth line segment 114 and the fifth line segment 115, and the entire rotor can be flipped 180 degrees, so as to rotate the unloaded rotor that has completed the unloading to the initial state, so that when the rotor flows back to the material feeding unit, it can be used normally. In this way, the rotating part connecting the fourth line segment 114 and the fifth line segment 115 is used to realize the rotation of the rotor, effectively saving the process, compressing the length of the battery cell shell production loop, and improving the efficiency of the battery cell shell production loop.

[0076] Optionally, the first rotating stage 131 , the second rotating stage 132 and the third rotating stage 133 may all be rotating disks driven by rotating motors.

[0077] In an embodiment, a material loading station 21 may be provided on the above-mentioned transport line. Figure 1 As shown, the material loading station 21 can be arranged on the first line segment 111 so that the mover returning through the second transport line 12 can directly flow into the material loading station 21 .

[0078] Alternatively, if Figure 1 As shown, the battery cell shell production line can also be provided with a fourth dust removal section 27, which can be arranged at the upstream position of the above-mentioned loading station to remove dust from the unloaded mover to ensure the cleanliness of the mover entering the material loading station 21.

[0079] It should be noted that the upstream position and downstream position referred to in this article are all based on the transmission direction of the transport line.

[0080] Optionally, the fourth dust removal unit 27 may be a negative pressure adsorption device to remove dust on the surface of the battery cell to be processed by negative pressure adsorption. However, it is not limited thereto, and as long as the dust on the mover can be removed, the fourth dust removal unit 27 may also be other dust removal devices, such as electrostatic dust removal equipment, mechanical cleaning equipment, etc.

[0081] Preferably, if Figure 1 As shown, the material loading unit may include a material storage portion 23 and a material loading gripper 22. The material storage portion 23 is used to store battery shells. The material loading gripper 22 can grab the battery shells in the material storage portion 23 to the mover in the material loading station 21 to realize the loading of battery shells in the battery cell shell production line.

[0082] Preferably, if Figure 1As shown, the material storage part 23 may include a material transmission part 231 and a loading part 232. The loading part 232 may be used to support the battery housing. The material transmission part 231 includes a material inlet 2311 and a material outlet 2312. The loading part 232 can flow into the material transmission part 231 through the material inlet 2311 and flow out of the material transmission part 231 through the material outlet 2312 to realize the circulation of the loading part 232.

[0083] Alternatively, if Figure 1 As shown, the material conveying part 231 may be a conveying device such as a conveyor belt, a conveyor roller or a magnetic suspension conveyor, so as to transfer the carrying part 232 from the channel 14 to the material loading station 21 .

[0084] Optionally, the loading portion 232 may be a loading fixture or a tray for supporting and fixing the battery housing.

[0085] Preferably, if Figure 1 As shown, the material inlet 2311 and the material outlet 2312 may both be disposed on the channel 14 to facilitate the inflow and outflow of the material carrying portion 232 .

[0086] Alternatively, if Figure 1 As shown, the material transmission part 231 may include a plurality of conveying devices extending along a first direction F1, and the conveying devices are arranged side by side along a second direction F2 to increase the material storage capacity of the material storage part 23. The plurality of conveying devices may be arranged on the same side of the channel 14, and the ends of the plurality of conveying devices close to the channel 14 are connected to the channel 14 to facilitate loading and unloading of the respective conveying devices. The other ends of the plurality of conveying devices away from the channel 14 may be connected in sequence to realize the transmission of materials between the respective conveying devices. The transmission direction of a portion of the plurality of conveying devices is the direction of flow toward the channel 14 (in Figure 1 As an example, the direction of the flow to the channel 14 can be rightward along the first direction), the end of the conveying device of this part close to the channel 14 is the material outlet 2312, and the conveying direction of another part of the plurality of conveying devices is the direction of the outflow channel 14 (with Figure 1 Taking the orientation shown in the figure as an example, the direction of the outflow channel 14 can be to the left along the first direction), and the end of the conveying device of this part close to the channel 14 is the above-mentioned material inlet 2311.

[0087] like Figure 1 An example is shown in which the material transfer portion 231 includes two conveying devices, but is not limited thereto. The number of conveying devices can be adjusted according to the spatial adaptability of the closed loop, for example, it can also be 3, 4, 5, 6... or more.

[0088] Furthermore, if Figure 1 The material loading unit may further include a conveyor vehicle 24 for loading the cargo portion 232. The conveyor vehicle 24 can pass through the above-mentioned passage 14 to load the cargo portion 232 fully loaded with battery shells into the closed loop, and to flow the empty cargo portion 232 out of the closed loop.

[0089] Preferably, if Figure 1 As shown, the passage 14 may include a carriageway 141 extending along the second direction F2 , and the transfer vehicle 24 may move on the carriageway 141 .

[0090] Preferably, if Figure 1 As shown, the material inlet 2311 and the material outlet 2312 may both be disposed on the carriageway 141 to facilitate the transport vehicle 24 to load / unload the load portion 232 .

[0091] Preferably, if Figure 1 As shown, the passage 14 may further include a sidewalk 142, which may be arranged side by side with the carriageway 141 below the second transport line 12 to facilitate the separation of people and vehicles, thereby ensuring the safety of personnel.

[0092] Optionally, the transfer vehicle 24 may be an AGV vehicle, a rail vehicle or other transport equipment.

[0093] Alternatively, if Figure 1 As shown, the material feeding gripper 22 can be a robot, and the material feeding gripper 22 can be arranged at one end of the material storage part 23 away from the channel 14, and the material feeding gripper 22 is arranged between the material storage part 23 and the material feeding station 21 to facilitate grabbing and feeding.

[0094] Preferably, if Figure 1 As shown, the material feeding unit may further include a first visual inspection unit 25, which is disposed at a downstream position of the material feeding station 21, for detecting the weld position of the battery housing on the mover, so as to identify whether the orientation of the battery housing placed on the mover is correct. Optionally, the first visual inspection unit 25 may be an image acquisition device, such as a CCD camera.

[0095] Preferably, if Figure 1 As shown, the material feeding unit may further include a deviation correction lever 26, which may be connected to the first visual unit for communication and disposed downstream of the first visual unit, so as to correct the battery housing placed on the mover facing in the opposite direction according to the information fed back by the first visual detection unit 25. Optionally, the deviation correction lever 26 may be a manipulator, an electric lever, etc.

[0096] Preferably, if Figure 1 As shown, the material feeding unit may further include a first dust removal unit 28, which may be disposed downstream of the deviation correction lever 26 to perform dust removal on the interior of the battery housing on the mover.

[0097] Optionally, the first dust removal section 28 may include a purging part and an adsorption part arranged opposite to each other. When the moving element loaded with the battery shell flows to the first dust removal section 28, the purging part and the adsorption part may be docked with two ports of the battery shell respectively, thereby effectively improving the dust removal efficiency and dust removal quality of the first dust removal section 28, realizing dust removal of the internal space of the battery shell, and thereby ensuring the cleanliness of the battery shell.

[0098] Optionally, the purge part may be an air outlet of a positive pressure device, which may be a positive pressure air pump, a fan, a blower, etc. Correspondingly, the adsorption part may be an air inlet of a negative pressure device, which may be a negative pressure air pump, an air compressor, etc.

[0099] In an embodiment, Figure 1 and Figure 2 As shown, the shell-piercing unit may include a shell-piercing part and a shell-piercing gripper 32. The shell-piercing part is arranged on one side of the conveying line body, and is used to insert the battery cell to be processed into the battery shell. The shell-piercing gripper 32 can grab the battery shell on the mover onto the shell-piercing part, and grab the battery cell to be processed after the shell-piercing part completes the shell-piercing process to the mover. In this way, the battery cell shell-entering production loop line battery cell loading is realized while the battery cell shell-entering production loop line battery cell shell-entering assembly process is completed, which effectively saves the process of the battery cell shell-entering production loop line and improves the production efficiency of the battery cell shell-entering production loop line.

[0100] Preferably, if Figure 1 As shown, the shell penetration unit may include multiple shell penetration parts and multiple shell penetration grippers 32. The multiple shell penetration parts are arranged in sequence along the transmission direction of the transport line body, and each shell penetration part has at least one shell penetration gripper 32 arranged corresponding to it, so as to realize the shelling and assembly process of multiple groups of battery cells to be processed at the same time, effectively improving the production capacity of the battery cell shelling production line.

[0101] like Figure 1 An example is shown in which the shell penetration machine includes three shell penetration parts, each of which has a shell penetration gripper 32 corresponding to it. However, it is not limited to this. The number of shell penetration parts can be adaptively adjusted according to the size of the layout site, production rhythm, etc. For example, the number of shell penetration parts can also be 1, 2, 4, 5...m (m is a positive integer).

[0102] Furthermore, if Figure 1 and Figure 2As shown, the shell penetration part may further include a plurality of shell penetration devices 31, and the plurality of shell penetration devices 31 may be arranged in sequence along the transmission direction of the transport line body. The shell penetration gripper 32 may reciprocate in the transmission direction of the transport line body, so that the shell penetration gripper 32 may be able to dock with the plurality of shell penetration devices 31 in the corresponding shell penetration part one by one.

[0103] like Figure 1 As shown, taking the above-mentioned shell penetration part including two shell penetration devices 31 as an example, when the shell penetration gripper 32 completes the two-way loading and unloading of one shell penetration device 31 in the shell penetration part (the two-way loading and unloading here refers to the process in which the shell penetration gripper 32 grabs the battery shell on the mover to the shell penetration part, and grabs the battery cell to be processed after the shell penetration part completes the shell penetration process to the mover), the shell penetration gripper 32 can be directly moved to dock with the other shell penetration device 31 in the shell penetration part to perform the two-way loading and unloading of the other shell penetration device 31. In this way, the mobility of the shell penetration gripper 32 is fully utilized, the shell penetration assembly time of one shell penetration device 31 in the shell penetration part is performed, and the two-way loading and unloading of the other shell penetration device 31 in the shell penetration part is performed, which effectively improves the production capacity utilization rate of the shell penetration gripper 32 and the shell penetration part, and improves the production capacity of the shell penetration assembly process of the battery cell shell production loop.

[0104] Optionally, the shell penetration gripper 32 may include a manipulator and a slide rail that are slidably connected to each other. The manipulator may be used for bidirectional loading and unloading between the shell penetration part and the mover. The manipulator may slide along the slide rail to achieve docking of the manipulator with different shell penetration devices 31 .

[0105] It should be noted that the above-mentioned shell penetration device 31 is an existing device in the art, and its structure and principle are not described in detail here.

[0106] However, it is not limited to this. The number of shell piercing devices 31 included in the above-mentioned shell piercing part can be adaptively adjusted according to the shell piercing rhythm of the shell piercing device 31 and the rhythm of bidirectional loading and unloading of the shell piercing gripper 32. For example, the number of shell piercing devices 31 included in the above-mentioned shell piercing part can also be 3, 4, 5...k (k is a positive integer).

[0107] Preferably, if Figure 1 As shown, the shell-piercing unit may include a second dust removal unit 33, which may be disposed downstream of the shell-piercing unit to remove dust from the battery cells to be processed after the shell-piercing process is completed. Similarly, the dust removal principle of the second dust removal unit 33 is similar to that of the fourth dust removal unit 27, which will not be described in detail here.

[0108] Preferably, if Figure 1 and Figure 2As shown, the shell penetration unit may include a first defective product outflow section 161, which may be disposed at a downstream position of the above-mentioned shell penetration section to flow out defective products generated by an upstream process of the transport line body located at the first defective product outflow section 161 from the transport line body.

[0109] Optionally, the first defective product outflow section 161 may include a robot and a defective product temporary storage warehouse, wherein the robot is used to grab the defective products on the mover and place them in the defective product temporary storage warehouse to realize the defective product outflow transportation line.

[0110] Preferably, if Figure 1 and Figure 3 As shown, the above-mentioned first polarity press-fitting welding unit may include a pre-welding gripper 41, a press-fitting portion 42 and a welding portion 43. The press-fitting portion 42 is arranged on one side of the conveying line body, and the welding portion 43 is arranged at the end of the press-fitting portion 42 facing away from the conveying line body, so as to weld and fix the cover plate on the first polarity side of the battery cell to be processed to the battery shell. The pre-welding gripper 41 can grab the battery cell to be processed on the mover to the press-fitting portion 42, and grab the battery cell to be processed on the press-fitting portion 42 that has completed the welding process to the mover. In this way, the battery cell to be processed that is transmitted to the press-fitting portion 42 can be grabbed to the press-fitting portion 42 via the pre-welding gripper 41. After the press-fitting action is performed, the cover plate on the first polarity side of the battery cell to be processed is welded and fixed to the battery shell via the welding portion 43.

[0111] Optionally, the welding portion 43 can spot-weld the cover plate and the battery shell on the first polarity side of the battery cell to be processed to improve the welding accuracy and welding yield of the cover plate and the battery shell on the first polarity side of the battery cell to be processed.

[0112] Preferably, if Figure 1 and Figure 3 As shown, the above-mentioned first polarity press-fitting welding unit may include multiple pre-welding grippers 41, multiple press-fitting parts 42 and multiple welding parts 43. The multiple press-fitting parts 42 are arranged in sequence along the conveying direction of the conveying line body, and each press-fitting part 42 has at least one pre-welding gripper 41 and at least one welding part 43 arranged correspondingly thereto, so as to realize the battery cell shell production loop line and simultaneously perform spot welding and fixing actions on the cover plate and the battery shell on the side of the first polarity of multiple groups of batteries to be processed, so as to improve the production capacity of the battery cell shell production loop line.

[0113] Preferably, if Figure 1 and Figure 3As shown, the press-fitting part 42 includes a plurality of press-fitting devices, which are arranged in sequence along the conveying direction of the transport line body. The pre-welding gripper 41 and the welding part 43 can both reciprocate in the conveying direction of the transport line body, so that the pre-welding gripper 41 and the welding part 43 can respectively dock with the press-fitting devices in their corresponding press-fitting parts 42 one by one. The movable setting of the pre-welding gripper 41 and the welding part 43 is similar to the above-mentioned shell-piercing gripper 32 and will not be repeated. In this way, it is effectively avoided that the pre-welding gripper 41 and the welding part 43 wait for the press-fitting part 42 to perform the press-fitting action, which causes the phenomenon of idle production capacity of either the pre-welding gripper 41 or the welding part 43, thereby effectively improving the capacity utilization rate of the battery cell shell production line.

[0114] Preferably, the welding part 43 may include a welding device and a slide rail that are slidably connected to each other. Correspondingly, the pre-welding gripper 41 may include a manipulator and a slide rail that are slidably connected to each other, so that both the pre-welding gripper 41 and the welding part 43 can reciprocate in the transmission direction of the transport line.

[0115] Optionally, the welding equipment mentioned above may be a laser welding machine.

[0116] Preferably, the first polarity press-fit welding unit can be arranged inside the space enclosed by the closed loop. Preferably, in the second direction F2, a passage connecting the second line segment 112 and the channel 14 can be formed between the material storage portion 23 and the first polarity press-fit welding unit, so as to facilitate the maintenance of the equipment on the second line segment 112 and the first polarity press-fit welding unit.

[0117] Preferably, if Figure 1 As shown, the first polarity press-fit welding unit may further include a second visual inspection unit 44, which is disposed downstream of the press-fit unit 42 to inspect the welding quality of the cover plate and the battery housing on the first polarity side of the battery cell to be processed.

[0118] In an embodiment, Figure 1 As shown, the second polarity cover plate assembly unit may include a third visual inspection unit 51, which may be arranged at a downstream position of the first polarity press-fit welding unit (i.e., the downstream position of the second visual inspection unit 44), and is used to detect the position of the second polarity ear of the battery cell to be processed.

[0119] Correspondingly, if Figure 1 As shown, the second rotating platform 132 can be disposed between the second visual inspection unit 44 and the third visual inspection unit 51, so that the second visual inspection unit 44 and the third visual inspection unit 51 are both disposed on the same side of the closed loop. Figure 1As shown, the second visual inspection unit 44 and the third visual inspection unit 51 are both arranged on the inner side of the closed loop, so as to improve the space utilization rate of the battery cell shell production loop.

[0120] Optionally, the second visual detection unit 44 and the third visual detection unit 51 may both include an image acquisition device, such as a CCD camera.

[0121] Preferably, the above-mentioned third visual inspection unit 51 may also include a pole lug shaping rod, which can be communicatively connected to the image acquisition device of the third visual inspection unit 51. When the second polarity pole lug image information collected by the image acquisition device of the third visual inspection unit 51 is bent and wrinkled, causing the pole lug position to shift, the pole lug shaping rod can correct the position of the second polarity pole lug to ensure the operating accuracy of the downstream process and improve the yield rate.

[0122] Optionally, the tab shaping lever may include a linear drive member and a toggle member that are transmission-connected to each other, and the driving direction of the linear drive member may be perpendicular to the driving direction of the transport line body.

[0123] Preferably, if Figure 1 As shown, the second polarity cover plate assembly unit may further include a second polarity cover plate storage portion 52. The second polarity cover plate storage portion 52 may be disposed on one side of the transport line body for storing the second polarity cover plates.

[0124] Preferably, if Figure 1 As shown, the second polarity cover plate storage part 52 can be arranged inside the above-mentioned closed loop line, so as to improve the space utilization rate of the battery cell shell production loop line. The above-mentioned channel 14 can be connected to the location of the second polarity cover plate storage part 52, so as to facilitate the loading of the second polarity cover plate. Optionally, the above-mentioned second polarity cover plate storage part 52 can be a storage rack or other device capable of storing the second polarity cover plate.

[0125] Preferably, if Figure 1 As shown, the second polarity cover plate assembly unit may further include a second polarity cover plate loading gripper 53, which is used to grab the second polarity cover plate on the second polarity cover plate storage portion 52 onto the corresponding mover to achieve loading of the second polarity cover plate.

[0126] Preferably, if Figure 1As shown, the second polarity cover plate assembly unit may further include a second polarity cover plate welding portion 54, which may be disposed at a downstream position of the second polarity cover plate material handling gripper 53, and is used to weld and fix the second polarity pole ear of the battery cell to be processed and the second polarity cover plate. Optionally, the second polarity cover plate welding portion 54 may be a laser welding device to ensure the welding accuracy and welding efficiency of the second polarity pole ear of the battery cell to be processed and the second polarity cover plate.

[0127] Preferably, if Figure 1 As shown, the second polarity cover plate assembly unit may further include a third dust removal section 55. The third dust removal section 55 may be disposed downstream of the second polarity cover plate welding section 54 to remove welding dust from the battery cells to be processed.

[0128] Similarly, the third dust removal unit 55 can be a negative pressure adsorption device to remove dust on the surface of the battery cell to be processed by negative pressure adsorption. However, it is not limited to this. As long as the dust on the mover can be removed, the third dust removal unit 55 can also be other dust removal equipment, such as electrostatic dust removal equipment, mechanical cleaning equipment, etc.

[0129] Preferably, if Figure 1 As shown, the second polarity cover assembly unit may further include a profiler detection unit 56, which may be disposed between the second polarity cover welding unit 54 and the following gluing unit 57, for detecting welding quality of the second polarity tab of the battery cell to be processed and the second polarity cover.

[0130] Preferably, if Figure 1 As shown, the profilometer detection part 56 may be disposed downstream of the third dust removal part 55 to prevent welding powder from interfering with the detection result of the profilometer detection part 56. Optionally, the profilometer detection part 56 may include a profilometer.

[0131] Preferably, if Figure 1 As shown, the second polarity cover plate assembly unit may further include a gluing portion 57, which may be disposed downstream of the second polarity cover plate welding portion 54, for gluing the second polarity tabs of the battery cell to be processed and the welds of the second polarity cover plate.

[0132] Preferably, if Figure 1 As shown, the battery cell shelling production line may include multiple groups of glue sticking parts 57, and the multiple groups of glue sticking parts 57 are arranged in sequence along the conveying direction of the conveying line body. In this way, one group of glue sticking parts 57 in the multiple groups of glue sticking parts 57 can be used as a spare. When other groups of glue sticking parts 57 in the multiple groups of glue sticking parts 57 need to stop (for example, maintenance or loading and changing glue, etc.), the spare glue sticking part 57 can replace the glue sticking part 57 that needs to be stopped, so that the battery cell shelling production line can operate normally.

[0133] Preferably, if Figure 1 As shown, the gluing unit 57 may include a plurality of gluing mechanisms, which may be arranged in sequence along the conveying direction of the conveying line body, so that the battery cell shell production loop can simultaneously perform gluing operations on a plurality of cells to be processed, thereby improving the production efficiency of the battery cell shell production loop. It should be noted that the gluing mechanism is a prior art device, and its gluing principle and setting structure are prior art in the art, which will not be described in detail here.

[0134] Preferably, if Figure 1 As shown, the second polarity cover assembly unit may further include a fourth visual inspection unit 58, which may be disposed downstream of the gluing unit 57 to inspect the quality of the process completed at the gluing unit 57. Similarly, the fourth visual inspection unit 58 may also include an image acquisition device, such as a CCD camera.

[0135] Preferably, if Figure 1 As shown, the second polarity cover plate assembly unit may further include a second polarity cover plate bending portion 59, which may be disposed at a downstream position of the above-mentioned adhesive portion 57, and is used to bend the second polarity tab, so as to cover the second polarity cover plate at the end of the second polarity end of the battery housing. It should be noted that the above-mentioned second polarity cover plate bending portion is an existing tab bending device, and its structure and bending principle are both existing technologies in the art, and will not be repeated here.

[0136] It should be noted that when the second polarity cover plate loading gripper 53 grabs the second polarity cover plate onto the mover, the second polarity cover plate is placed flat on the side where the second polarity pole ear of the battery cell to be processed is located, so as to facilitate the welding operation of the second polarity pole ear of the battery cell to be processed and the second polarity cover plate. The second polarity cover plate bending portion 59 bends the second polarity pole ear by 90°, so that the second polarity cover plate rotates 90° accordingly, thereby enabling the second polarity cover plate to cover the port at the end of the second polarity end of the battery housing.

[0137] Preferably, if Figure 1 As shown, the second polarity cover plate assembly unit may further include a second polarity cover plate pre-pressing portion 50, which is disposed at a downstream position of the second polarity cover plate bending portion 59, and the second polarity cover plate pre-pressing portion 50 can apply a force to the second polarity cover plate directed toward the side where the first polarity of the battery to be processed is located, so that at least a portion of the second polarity cover plate is pressed into the battery housing (i.e., at least a portion of the second polarity cover plate is pressed into the port at the end of the battery housing where the second polarity is located), thereby achieving preliminary fixation between the second polarity cover plate and the battery housing.

[0138] Preferably, if Figure 1 As shown, the second polarity cover plate assembly unit may further include a code scanning unit 61, which is disposed between the second polarity cover plate pre-pressing unit 50 and the material unloading station 62 described below, for respectively identifying the codes of the mover and the battery cell to be processed, and then determining whether the process of the battery cell shell production line is disordered. Optionally, the code scanning unit 61 may include a code scanning device such as a code scanning gun and a scanner.

[0139] Preferably, if Figure 1 As shown, a material unloading station 62 is provided on the above-mentioned transport line body, and the material unloading station 62 is arranged at a downstream position of the second polarity cover plate pre-pressing part 50 .

[0140] Preferably, not shown in the figure, the second polarity cover plate assembly unit may also include a material unloading gripper, which is arranged at the downstream position of the second polarity cover plate pre-pressing part 50 and is arranged on one side of the unloading station 62, and is used to move the unprocessed battery cells that have completed the second polarity cover plate pre-pressing process and are qualified products on the mover entering the unloading station 62 out of the transportation line body, thereby realizing the unloading of qualified products from the battery cell shell production line. Optionally, the unloading gripper may also be a manipulator.

[0141] Preferably, if Figure 1 As shown, the second polarity cover assembly unit may further include a second defective product outflow portion 162, which may be disposed at a downstream position of the unloading gripper to discharge defective products generated in an upstream process of the transport line body located at the second defective product outflow portion 162 out of the transport line body. Similarly, the arrangement structure and arrangement principle of the second defective product outflow portion 162 are similar to those of the first defective product outflow portion 161, and will not be described in detail herein.

[0142] Preferably, if Figure 1 As shown, the second polarity cover assembly unit may further include a first mover maintenance unit 171, which is disposed at a downstream position of the unloading gripper and is capable of moving the mover out of the transport line body to facilitate maintenance of the mover.

[0143] Preferably, the first mover maintenance section 171 may include a first mover gripper and a first maintenance station. The first maintenance station may be arranged on one side of the transport line body. The first mover gripper may be a manipulator for grabbing the mover that needs maintenance from the transport line body to the maintenance station.

[0144] Preferably, if Figure 1As shown, the battery cell shelling production line can also include a second mover maintenance unit 172, which can be arranged between the second rotating table 132 and the third visual inspection unit 51. In this way, a mover maintenance unit is added to the middle section of the battery cell shelling production line, so that the faulty mover can be discharged from the transport line in time, thereby ensuring the smoothness of the transport line.

[0145] Similarly, the second mover maintenance part 172 may include a second mover gripper and a second maintenance station. The setting structure and principle of the second mover maintenance part 172 are similar to those of the first mover maintenance part 171 and are not described in detail here.

[0146] Preferably, if Figure 1 As shown, both the second defective product outflow portion 162 and the first mover maintenance portion 171 may be disposed on the fifth line segment 115 to avoid interfering with the unloading of materials by the unloading gripper.

[0147] The embodiment of the second aspect of the present application further provides a battery production system, including the battery cell shell production loop line described in any of the above embodiments, and thus has all the beneficial technical effects of the battery cell shell production loop line, which will not be repeated here.

[0148] Optionally, the battery production system may further include an upstream production line 01 for performing other processes before the battery shell penetration process to be processed. Figure 1 As shown, the upstream production line 01 may include a battery cell unloading gripper 011, which can grab the product of the upstream production line 01 (i.e., the battery cell to be processed) onto the above-mentioned shell penetration device 31 to realize the loading of the battery cell to be processed on the shell penetration device 31.

[0149] Preferably, if Figure 1 As shown, at least part of the upstream production line 01 is arranged parallel to the second line segment 112, and the battery cell unloading gripper 011 can be arranged on the part of the upstream production line 01 that is parallel to the second line segment 112. The upstream production line 01 and the battery cell shell production loop can be arranged side by side along the first direction F1, and the shell penetration part can be arranged between the upstream production line 01 and the second line segment 112, so as to realize the flow of the battery cells in the battery production system along the first direction F1, and facilitate the transportation of the battery cells.

[0150] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery cell shell production loop, characterized in that: It includes a magnetic suspension transport line, a material feeding unit, a shell penetration unit, a first polarity press-fit welding unit, and a second polarity cover assembly unit. The magnetic suspension transport line includes a transport line body and a mover. The mover can move along the transport line body under the magnetic induction of the transport line body. The transport line body comprises a first transport line, a second transport line and a lifting and landing part, the transport plane where the second transport line is located is higher than the transport plane where the first transport line is located, and the two ends of the second transport line are respectively connected to the two ends of the first transport line by the lifting and landing part, so that the transport line body is surrounded to form a closed loop, and a passage capable of entering the interior of the closed loop is formed below the location of the second transport line of the transport line body; The material feeding unit, the shell penetration unit, the first polarity press-fit welding unit and the second polarity cover assembly unit are arranged in sequence along the conveying direction of the transport line.

2. The battery cell shell production line according to claim 1, characterized in that: A material loading station is provided on the transport line body; The material feeding unit includes a material storage part and a material feeding gripper, the material storage part is used to store the battery shell, and the material feeding gripper can grab the battery shell in the material storage part to the mover in the material feeding station.

3. The battery cell shell production loop according to claim 2, characterized in that: The material storage part includes a material transmission part and a material carrying part, the material carrying part is used to support the battery housing, the material transmission part includes a material inlet and a material outlet, the material carrying part can flow into the material transmission part through the material inlet and flow out of the material transmission part through the material outlet; The material inlet and the material outlet are both arranged on the channel; And / or, the material feeding unit further comprises: A conveying vehicle, used for loading the cargo portion, and the conveying vehicle can pass through the passage; A first visual inspection unit is provided at a downstream position of the material loading station to detect the weld position of the battery housing on the mover; A deviation correction lever, which is in communication with the first visual detection unit and is disposed at a downstream position of the first visual detection unit, so as to correct the battery housing placed on the mover in the opposite direction according to information fed back by the first visual detection unit; The first dust removal unit is arranged at a downstream position of the deviation correction lever to remove dust from the inside of the battery housing on the mover.

4. The battery cell shell production loop according to claim 1, characterized in that: The shell penetration unit includes a shell penetration part and a shell penetration gripper. The shell penetration part is arranged on one side of the transport line body, and is used to penetrate the battery cell to be processed into the battery shell. The shell penetration gripper can grab the battery shell on the mover to the shell penetration part, and grab the battery cell to be processed after the shell penetration process is completed by the shell penetration part to the mover.

5. The battery cell shell production loop according to claim 4, characterized in that: The shell penetration unit comprises a plurality of shell penetration parts and a plurality of shell penetration grippers, wherein the plurality of shell penetration parts are sequentially arranged along the transmission direction of the transport line body, and each shell penetration part has at least one shell penetration gripper correspondingly arranged thereto; The shell-penetrating part includes a plurality of shell-penetrating devices, which are sequentially arranged along the conveying direction of the transport line body, and the shell-penetrating gripper can reciprocate in the conveying direction of the transport line body, so that the shell-penetrating gripper can respectively dock with the corresponding shell-penetrating devices in the shell-penetrating part one by one; And / or, the shell penetration unit further comprises: A first defective product outflow portion is disposed at a downstream position of the shell penetration portion to flow defective products generated in an upstream process of the transport line body located at the first defective product outflow portion out of the transport line body; The second dust removal section is arranged at a downstream position of the shell penetration section to remove dust from the battery cells to be processed that have completed the shell penetration process.

6. The battery cell shell production loop according to claim 1, characterized in that: The first polarity press-fit welding unit includes a pre-welding gripper, a press-fitting part and a welding part. The press-fitting part is arranged on one side of the transport line body, and the welding part is arranged at an end of the press-fitting part facing away from the transport line body, so as to weld and fix the cover plate on the first polarity side of the battery cell to be processed to the battery shell. The pre-welding gripper can grab the battery cell to be processed on the mover to the press-fitting part, and grab the battery cell to be processed on which the welding process is completed on the press-fitting part to the mover.

7. The battery cell shell production loop according to claim 6, characterized in that: The first polarity press-fit welding unit comprises a plurality of pre-welding grippers, a plurality of press-fitting parts and a plurality of welding parts, wherein the plurality of press-fitting parts are sequentially arranged along the conveying direction of the conveying line body, and each press-fitting part has at least one pre-welding gripper and at least one welding part arranged correspondingly thereto; The press-fitting part includes a plurality of press-fitting devices, which are sequentially arranged along the conveying direction of the conveying line body, and the pre-welding gripper and the welding part can both reciprocate in the conveying direction of the conveying line body, so that the pre-welding gripper and the welding part can respectively dock with the press-fitting devices in the press-fitting part corresponding to them one by one; And / or, the first polarity press-fit welding unit also includes a second visual inspection unit, which is arranged at a downstream position of the press-fit unit to detect the welding quality of the cover plate and the battery shell on the first polarity side of the battery cell to be processed.

8. The battery cell shell production loop according to claim 1, characterized in that: The second polarity cover plate assembly unit comprises: A second polarity cover plate storage portion, arranged on one side of the transport line body, for storing second polarity cover plates; A second polarity cover plate material gripper, used for grabbing the second polarity cover plate on the second polarity cover plate material storage part to the corresponding mover; A second polarity cover plate welding portion is provided at a downstream position of the second polarity cover plate feeding gripper, and is used for welding and fixing the second polarity pole ear of the battery cell to be processed and the second polarity cover plate; A gluing part, arranged at a downstream position of the second polarity cover plate welding part, for gluing the welding seams of the second polarity electrode ear of the processed battery cell and the second polarity cover plate; A second polarity cover plate bending portion is disposed at a downstream position of the adhesive portion and is used to bend the second polarity tab so as to cover the second polarity cover plate at the end of the battery housing at the second polarity end; A second polarity cover plate pre-pressing portion, disposed at a downstream position of the second polarity cover plate bending portion, capable of applying a force directed toward the first polarity side of the battery to be processed to the second polarity cover plate, so that at least a portion of the second polarity cover plate is pressed into the battery housing; A material unloading gripper, arranged at a downstream position of the second polarity cover plate pre-pressing portion, used to move the battery cells to be processed that have completed the second polarity cover plate pre-pressing process on the mover and are qualified products out of the transport line body; And / or, the first transport line includes a first line segment, a second line segment, a third line segment, a fourth line segment and a fifth line segment connected in sequence along its conveying direction, wherein the starting point of the first line segment and the end point of the fifth line segment are respectively connected to the two ends of the second transport line, the first line segment, the third line segment, the fifth line segment and the second transport line all extend along the first direction, the second line segment and the fourth line segment both extend along the second direction, the shell penetration unit is arranged on the second line segment, the unloading gripper is arranged on the fourth line segment, and the first direction intersects with the second direction.

9. The battery cell shell production loop according to claim 8, characterized in that: The second polarity cover plate assembly unit also includes: A third visual inspection unit is provided at a downstream position of the first polarity press-fit welding unit and is used to detect the position of the second polarity tab of the battery cell to be processed; A third dust removal part is provided between the second polarity cover plate welding part and the adhesive part, and is used to remove welding dust of the battery cell to be processed; A profilometer detection part, disposed between the second polarity cover plate welding part and the glue sticking part, for detecting welding quality between the second polarity tab of the battery cell to be processed and the second polarity cover plate; a fourth visual inspection section, disposed downstream of the gluing section, for inspecting the quality of the process completed at the gluing section; A second defective product outflow portion is disposed at a downstream position of the unloading gripper to flow defective products generated in an upstream process of the transport line body located at the second defective product outflow portion out of the transport line body; A first mover maintenance unit is disposed at a downstream position of the unloading gripper and is capable of moving the mover out of the transport line body to facilitate maintenance of the mover; And / or, the transport line body also includes a rotating part, which is arranged between the first polarity press-fit welding unit and the second polarity cover assembly unit, and the rotating part can rotate the mover flowing to the rotating part by a predetermined angle so that the positions of the two polarities of the battery cells to be processed on the mover are reversed.

10. A battery production system, characterized in that: A battery cell shell production loop comprising the battery cell shell production loop as described in any one of claims 1 to 9.

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