A core-in-shell production line and a battery assembly system

Abstract

The present invention provides a core-in-shell production line and a battery assembly system. The core-in-shell production line includes a magnetic levitation conveying line, a housing feeding mechanism, a core-in-shell mechanism, a polarity pressing and pre-welding mechanism, and a discharging mechanism. The magnetic levitation conveying line includes a conveying line body and a moving trolley, and the moving trolley can move along the conveying line body under the magnetic induction action of the conveying line body. The housing feeding mechanism, the core-in-shell mechanism, the polarity pressing and pre-welding mechanism, and the discharging mechanism are sequentially arranged along the conveying direction of the conveying line body. The conveying line body includes an upper return line and a lower return line or encloses to form a closed loop. The core-in-shell production line effectively improves the transfer efficiency between various workstations of the production line and improves the overall working efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of battery production, and in particular, to a core-in-shell production line and a battery assembly system. Background Art

[0002] With the development of the electronic industry, the application scope of square-shell blade batteries is becoming wider and wider. For the assembly line of square-shell blade batteries, improving the assembly speed has become an industry consensus. Most of the existing traditional assembly lines adopt stacking more workstations to improve production capacity, but the transfer between the same workstations has also become a link restricting the assembly speed. In addition, due to the large floor area of the equipment, the number of workstations and stations is mostly large and densely distributed, which will also cause inconvenience in maintenance and repair.

[0003] At the same time, for the specific production loop of square-shell blade batteries, such as the production line for core-in-shell spot welding, because its assembly process is more, the process distance of the production line is longer, resulting in difficult return of the assembly jig, and then making it difficult to arrange the production line, affecting the transportation of the logistics channel, and further affecting production efficiency.

[0004] Therefore, it is necessary to design a core-in-shell production line to solve the above problems. Summary of the Invention

[0005] In view of this, in order to overcome the defects of the prior art, the present invention provides a core-in-shell production line and a battery assembly system, which effectively solve the problem that the process distance of the existing core-in-shell spot welding production line is relatively long, resulting in difficult return of the assembly jig, and then resulting in low work efficiency.

[0006] According to a first aspect of the present invention, a core-in-shell production line is provided, wherein the core-in-shell production line includes: a maglev conveyor line, a housing loading mechanism, a core-in-shell mechanism, a polarity pressing and pre-welding mechanism, and a blanking mechanism; the maglev conveyor line includes a conveyor body and a moving trolley, and the moving trolley can move along the conveyor body under the magnetic induction of the conveyor body; the housing loading mechanism, the core-in-shell mechanism, the polarity pressing and pre-welding mechanism, and the blanking mechanism are sequentially arranged along the conveying direction of the conveyor body; the conveyor body includes an upper return line and a lower return line, and connection parts are arranged at both ends of the upper return line and the lower return line, and the moving trolley switches positions between the upper return line and the lower return line through the connection parts; or, the conveyor body encloses to form a closed loop, and a hollow channel is formed below the conveyor body, and the hollow channel conducts the inside and outside of the conveyor body.

[0007] Preferably, when the conveying line body is formed into a loop, the loop has a notch; and / or a first connection part is provided at the first ends of the upper return line and the lower return line, and a second connection part is provided at the second ends of the upper return line and the lower return line. The mobile trolley moves along the upper return line to the first connection part, and the first connection part moves the mobile trolley to the lower return line. The mobile trolley descending to the lower return line moves along the lower return line to the second connection part, and the second connection part moves the mobile trolley to the upper return line.

[0008] Preferably, a shell loading position and a shell storage part are provided on the conveying line body. The shell storage part includes a shell storage bin, a shell loading gripper and a feeding cart. The shell storage bin is used for storing shells. The shell loading gripper can transfer the shells in the shell storage bin to the mobile trolley in the shell loading position. The feeding cart is arranged in the shell storage bin and is used for transporting shells.

[0009] Preferably, the shell loading mechanism includes a first detection device arranged at a downstream position of the shell loading position for detecting the weld position of the shell on the mobile trolley; a deviation rectifying device arranged at a downstream position of the first detection device for adjusting the direction of the shell; and a first dust removal part arranged at a downstream position of the deviation rectifying device for removing dust from the shell on the mobile trolley.

[0010] Preferably, the battery cell casing inserting mechanism includes an inserting part and an inserting gripper. The inserting part is arranged on one side of the conveying line body and is used for inserting the battery cell to be processed into the shell. The inserting gripper can transfer the shell on the mobile trolley to the inserting part and transfer the battery cell to be processed that has completed the casing inserting process by the inserting part to the mobile trolley.

[0011] Preferably, the battery cell casing inserting mechanism includes a plurality of the inserting parts and a plurality of the inserting grippers. The plurality of inserting parts are arranged in sequence along the transmission direction of the conveying line body, and at least one inserting gripper is correspondingly arranged for each inserting part. The inserting part includes a plurality of inserting devices which are arranged in sequence along the conveying direction of the conveying line body; and / or the battery cell casing inserting mechanism further includes a first defective product discharging part arranged at a downstream position of the inserting part for receiving defective products, and a second dust removal part arranged at a downstream position of the inserting part for removing dust from the battery cell to be processed that has completed the casing inserting process.

[0012] Preferably, the polar press-fitting and pre-welding mechanism includes a pre-welding gripper, a press-fitting part, and a welding part; the press-fitting part is arranged on one side of the conveying line body, and the welding part is arranged at one end of the press-fitting part facing away from the conveying line body, for welding and fixing the cover plate on the side where the first polarity of the battery cell to be processed is located to the housing. The pre-welding gripper can transfer the battery cell to be processed on the moving trolley to the press-fitting part, and transfer the battery cell to be processed that has completed the welding process on the press-fitting part to the moving trolley.

[0013] Preferably, the polar press-fitting and pre-welding mechanism includes a plurality of the pre-welding grippers, a plurality of the press-fitting parts, and a plurality of the welding parts. The plurality of press-fitting parts are arranged in sequence along the conveying direction of the conveying line body. Each press-fitting part is correspondingly provided with at least one pre-welding gripper and at least one welding part; the press-fitting part includes a plurality of press-fitting devices, and the plurality of press-fitting devices are arranged in sequence along the conveying direction of the conveying line body. The pre-welding gripper and the welding part can reciprocate in the conveying direction of the conveying line body, so that the pre-welding gripper and the welding part can be respectively butted against the press-fitting devices in their corresponding press-fitting parts one by one; and / or, the polar press-fitting and pre-welding mechanism further includes: a second detection device, arranged at the downstream position of the press-fitting part, for detecting the welding quality of the battery cell to be processed; a second defective product discharging part, arranged at the downstream position of the second detection device, for receiving defective products.

[0014] Preferably, the blanking mechanism includes a blanking gripping device, arranged at the blanking station, capable of removing the qualified battery cell to be processed from the conveying line body; a branch line buffer position, arranged at the upstream position of the blanking station. The branch line buffer position includes a branch line buffer vertical warehouse and a buffer manipulator. The buffer manipulator can transfer the qualified battery cell to be processed from the moving trolley to the branch line buffer vertical warehouse; a maintenance and repair passage, for the maintenance and repair of the moving trolley.

[0015] According to a second aspect of the present invention, there is provided a battery assembly system, wherein the battery assembly system includes the above-mentioned battery cell into housing production line.

[0016] According to the battery cell casing production line of the present invention, in the first layout method, an upper return line and a lower return line are arranged, and a connection part provided between the two return lines is used to realize the position switching of the moving trolley between the upper return line and the lower return line. Moreover, the battery cell assembly is realized through the casing feeding mechanism, the battery cell casing mechanism, the polarity pressing and pre-welding mechanism, and the blanking mechanism arranged on the loop line. The moving trolley jig is transported and processed in a pipeline integrated design, which combines the high flexibility, intelligence, modularity, high speed, high acceleration and other characteristics of the magnetic levitation system, effectively improving the transfer efficiency between the stations of the production line and the overall working efficiency. In the second layout method, the conveying line body encloses a closed loop, and a hollow channel is formed below the conveying line body. The hollow channel conducts the inside and outside of the conveying line body. In this way, after the moving trolley sequentially passes the casing feeding mechanism, the battery cell casing mechanism, the polarity pressing and pre-welding mechanism, and the blanking mechanism for the battery cell to be processed, the moving trolley can be conveyed to the casing feeding mechanism again via the closed loop to realize the circulation of the moving trolley. The distance of the moving trolley's return conveyance is greatly shortened, effectively reducing the failure rate of the moving trolley's return. And through the above channel, it is convenient for personnel and materials to enter the inside of the space enclosed by the closed conveying line. It can not only store materials inside the space enclosed by the closed loop, improving the space utilization rate of the battery cell casing closed loop, but also facilitate loading and unloading at each station and shorten the loading and unloading path.

[0017] To make the above objects, features and advantages of the present application more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, makes the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0019] Figure 1 Showing a schematic structural diagram of the first battery cell casing production line according to an embodiment of the present invention;

[0020] Figure 2 Showing a schematic structural diagram of the second battery cell casing production line according to an embodiment of the present invention;

[0021] Figure 3 Showing a schematic structural diagram of the polarity pressing and pre-welding mechanism according to an embodiment of the present invention;

[0022] Figure 4 Showing a schematic structural diagram at the battery cell casing mechanism according to an embodiment of the present invention.

[0023] Reference numerals: L1 - first section; L2 - second section; L3 - third section; L4 - fourth section; L5 - fifth section; L6 - sixth section; L7 - seventh section; L8 - eighth section; L9 - ninth section; L10 - tenth section; L11 - turntable section; 101 - upper return line; 102 - mobile trolley; 103 - first connection part; 104 - second connection part; 105 - logistics channel; 201 - housing storage; 202 - housing loading gripper; 203 - feeding vehicle; 204 - housing preparation storage; 205 - housing loading position; 301 - first detection device; 302 - deviation correction device; 303 - first dust removal part; 401 - housing insertion gripper; 402 - housing insertion device; 403 - first defective product outflow part; 404 - second dust removal part; 501 - pre - welding gripper; 502 - press - fitting device; 503 - welding device; 504 - second detection device; 505 - second defective product outflow part; 601 - unloading gripper device; 602 - branch buffer vertical warehouse; 603 - buffer manipulator; 604 - maintenance access channel. Detailed implementation manners

[0024] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Usually, the components of the embodiments of the present application described and illustrated 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 present application claimed, but merely represents the selected embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0025] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is usually placed during use. It is 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 a limitation of the present application. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0026] In addition, terms such as "horizontal" and "vertical" do not require the components to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0027] In the description of the embodiments of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "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 directly connected or indirectly connected through an intermediate medium, and it can be the connection inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0028] According to the first aspect of the present invention, a core-in-shell production line is provided, as Figures 1 to 4 shown. This core-in-shell production line is used to produce square-shell blade cores. By reasonably arranging two loop forms, the overall production efficiency is improved. The core-in-shell production line includes a magnetic levitation conveyor line, a housing feeding mechanism, a core-in-shell mechanism, a polarity pressing and pre-welding mechanism, and a blanking mechanism.

[0029] In the following description, reference will be made to Figures 1 to 4 specifically describe the detailed structures of the magnetic levitation conveyor line, the housing feeding mechanism, the core-in-shell mechanism, the polarity pressing and pre-welding mechanism, and the blanking mechanism of this core-in-shell production line. The housing feeding mechanism, the core-in-shell mechanism, the polarity pressing and pre-welding mechanism, and the blanking mechanism are arranged in sequence along the conveying direction of the conveyor line body.

[0030] As Figure 1 shown, in the first embodiment, the magnetic levitation conveyor line includes a conveyor line body and a moving trolley 102. The moving trolley 102 can move along the conveyor line body under the magnetic induction of the conveyor line body. The conveyor line body includes an upper return line 101 and a lower return line (which overlaps with the upper return line 101 and is not shown). The lower return line is located below the upper return line 101. Specifically, for example, the upper return line 101 is arranged on the second floor of the factory site, and the lower return line is arranged on the first floor of the factory site. In this way, by using two return lines, enough space can be left at the line change point for subsequent material transportation. Both ends of the upper return line 101 and the lower return line are provided with connection parts. The moving trolley 102 switches positions between the upper return line 101 and the lower return line through the connection parts. The connection parts can be, for example, connection platforms, lifting platforms, elevators, etc., which can be used for the moving trolley 102 to perform lifting and transmission displacement. The connection parts can be devices in the prior art and will not be elaborated here.

[0031] AsFigure 2 As shown, in the second embodiment, the magnetic levitation conveyor line also includes a conveyor line body and a moving trolley 102. The moving trolley 102 can move along the conveyor line body under the magnetic induction of the conveyor line body. The conveyor line body is enclosed to form a closed loop, and a hollow channel is formed below the conveyor line body. The hollow channel conducts the inside and outside of the conveyor line body. In this way, after the moving trolley 102 passes the shell feeding mechanism, the battery cell casing mechanism, the polarity pressing and pre-welding mechanism, and the blanking mechanism in sequence for the battery cell to be processed, the moving trolley 102 can be conveyed back to the position where the shell feeding mechanism is located via the closed loop, so as to realize the circulation of the moving trolley 102. The distance of the moving trolley 102 for backflow transmission is greatly shortened, effectively reducing the failure rate of the moving trolley 102 for backflow.

[0032] In summary, in the first embodiment of this battery cell casing production line, the use of the two-layer arranged return line can enable the moving trolley 102 to return from one end to the other end of the upper return line 101 by lifting, realizing repeated movement. In the second embodiment of this battery cell casing production line, the hollow channel can facilitate the entry of personnel and materials into the interior of the space enclosed by the closed conveyor line. It can not only store materials inside the space enclosed by the closed loop, improving the space utilization rate of the battery cell casing closed loop, but also facilitate loading and unloading at each station, shortening the loading and unloading path.

[0033] In addition, it should be noted that the above magnetic levitation transport line can be understood as a magnetic levitation transmission device that realizes transmission using the magnetic levitation principle (for example, the magnetic levitation conveyor device and the main body of the magnetic levitation transmission line disclosed in Chinese Patent Document CN220299746U). The transmission principle and transmission structure of this device are both prior art in this field and will not be elaborated here either.

[0034] Preferably, as Figure 1 shown, in the first embodiment, the conveyor line body can be enclosed to form a ring shape, and the ring shape has a notch portion. The notch portion can be used to arrange the following shell storage portion. In addition, the conveyor line body will not interfere with the movement of operators and the transportation of materials, facilitating the movement and handling of personnel and materials, and further improving production efficiency.

[0035] Preferably, as Figure 1As shown, in the first embodiment, the first ends of the upper return line 101 and the lower return line are provided with a first connection part 103, and the second ends of the upper return line 101 and the lower return line are provided with a second connection part 104. The mobile trolley 102 moves along the upper return line 101 to the first connection part 103, and the first connection part 103 moves the mobile trolley 102 to the lower return line. The mobile trolley 102 that descends to the lower return line moves along the lower return line to the second connection part 104, and the second connection part 104 moves the mobile trolley 102 to the upper return line 101, thus realizing the reciprocating motion of the mobile trolley 102. In addition, since Figure 1 what is shown is the upper return line 101, so in Figure 1 the arrow shown is the moving direction of the mobile trolley 102 in the upper return line 101. When the mobile trolley 102 descends to the lower return line, since it needs to return to the second end of the upper return line 101, the moving direction of the mobile trolley 102 in the lower return line is opposite to the moving direction in the upper return line 101.

[0036] Preferably, as Figure 1 and Figure 2 shown, in the first embodiment, since both the upper return line 101 and the lower return line are arranged to form an annular structure with a notch part, the entire production line is a production line with a bending part, and a turntable part L11 is provided at the bending part to help the mobile trolley 102 achieve a turning motion. Preferably, the turntable part L11 can be a rotating disk driven by a rotating motor.

[0037] Preferably, as Figure 1 shown, in the first embodiment, the conveyor line body including the upper return line 101 and the lower return line may include a seventh section L7, an eighth section L8, a ninth section L9, and a tenth section L10. These four sections of the seventh section L7, the eighth section L8, the ninth section L9, and the tenth section L10 are connected end to end in sequence, and the two sections of the tenth section L10 and the seventh section L7 are not connected to form the above-mentioned notch part. These four sections of the seventh section L7, the eighth section L8, the ninth section L9, and the tenth section L10 can form an approximate rectangular structure with a notch part, so that the battery cell casing production line forms a loop, improving production efficiency.

[0038] Preferably, as Figure 1As shown, in the first embodiment, the seventh section L7 serves as the starting section for receiving the mobile trolley 102 and the battery cell housing. The eighth section L8 serves as the housing insertion section for receiving the housing from the previous process and is also used for the insertion and assembly of the battery cell into the housing. The ninth section L9 is used for welding the battery cell and the housing, and at the same time for inspection and removal of defective products. The tenth section L10 is used for conveying the battery cell after the housing insertion is completed and for docking with the next process. Here, the seventh section L7 and the ninth section L9 are arranged opposite to each other, and the eighth section L8 and the tenth section L10 are arranged opposite to each other. Facing each other is convenient for the operation of the operator, and at the same time, it can further reduce the floor area and is also convenient for the transportation of the logistics vehicle. The middle space of these four sections, namely the seventh section L7, the eighth section L8, the ninth section L9, and the tenth section L10, can be used for the placement and storage of materials, which is convenient for the operator to pick up.

[0039] Preferably, as Figure 1 shown, in the first embodiment, among the four sections of the seventh section L7, the eighth section L8, the ninth section L9, and the tenth section L10, any two adjacent sections are connected via the turntable section L11.

[0040] Preferably, as Figure 2 shown, in the second embodiment, the conveyor line body formed as a closed loop can include the first section L1, the second section L2, the third section L3, the fourth section L4, the fifth section L5, and the sixth section L6. These six sections, namely the first section L1, the second section L2, the third section L3, the fourth section L4, the fifth section L5, and the sixth section L6, are connected in sequence end to end. Compared with the two unconnected sections of the tenth section L10 and the seventh section L7 in the first embodiment, in the second embodiment, the sixth section L6 and the first section L1 are connected, thus forming a closed loop. Further, due to the connection between the sixth section L6 and the first section L1, in order to arrange and avoid the housing feeding mechanism, the first section L1, the second section L2, and the sixth section L6 are additionally arranged.

[0041] Preferably, as Figure 2 shown, in the second embodiment, the first section L1 and the second section L2 serve as the starting sections for receiving the mobile trolley 102 and the battery cell housing. The third section L3 serves as the housing insertion section for receiving the housing from the previous process and is also used for the insertion and assembly of the battery cell into the housing. The fourth section L4 is used for welding the battery cell and the housing, and at the same time for inspection and removal of defective products. The fifth section L5 is used for conveying the battery cell after the housing insertion is completed and for docking with the next process. The sixth section L6 is used for the transmission of the mobile trolley 102. Similarly, the first section L1 and the second section L2 are arranged opposite to the fourth section L4, and the third section L3 is arranged opposite to the fifth section L5. Facing each other is convenient for the operation of the operator, and at the same time, it can further reduce the floor area and is also convenient for the transportation of the logistics vehicle. The middle space of these six sections, namely the first section L1, the second section L2, the third section L3, the fourth section L4, the fifth section L5, and the sixth section L6, can be used for the placement and storage of materials, which is convenient for the operator to pick up.

[0042] Preferably, as Figure 2 shown, in the second embodiment, the hollow channel may be the hollow area at the bottom of the loop. Personnel and materials can enter the hollow channel and the storage area through the logistics channel 105 of the second section L2, so as to further improve the space utilization rate of the closed-loop conveyor line.

[0043] Preferably, as Figure 2 shown, in the second embodiment, among the six sections of the first section L1, the second section L2, the third section L3, the fourth section L4, the fifth section L5 and the sixth section L6, any two adjacent sections are connected via the turntable part L11.

[0044] Since both of the above two embodiments include the shell loading mechanism, the battery cell casing mechanism, the polarity pressing and pre-welding mechanism, and the unloading mechanism, which are arranged in sequence along the conveying direction of the conveyor body, and in both embodiments, the functions of these four mechanisms are the same, the following preferred structures and solutions can be used in both of these two embodiments.

[0045] Preferably, as Figure 1 and Figure 2 shown, in the embodiment, the mobile trolley 102 can be formed into an approximate cuboid structure. The length of the cuboid structure is greater than the width of the transmission line main body. In this way, both ends of the mobile trolley 102 are located outside the transmission line main body. In this way, while being able to expand the loading space of the mobile trolley 102, the battery cell to be processed located on the mobile trolley 102 can extend relative to the transmission line main body, so as to facilitate the processing equipment on the transmission line main body to perform assembly operations on the battery cell to be processed.

[0046] Preferably, the mobile trolley 102 may include a conveying part and a jig part (not shown due to angle reasons) that are connected to each other. The conveying part connects the mobile trolley 102 to the transmission line main body, and the jig part is used to place the above-mentioned battery cell to be processed.

[0047] Preferably, as Figure 1 and Figure 2As shown, in the embodiment, a shell loading position 205 and a shell storage part are arranged on the conveying line body. The shell storage part includes a shell magazine 201, a shell loading gripper 202 and a feeding vehicle 203. Specifically, the shell magazine 201 can be formed into a U-shaped structure. The two ends of the U-shaped structure are respectively used for the entry and exit of the feeding vehicle 203. The shell magazine 201 is used for storing shells. The feeding vehicle 203 is arranged above the shell magazine 201 and can be used for conveying shell materials and moves along the shell magazine 201 formed into a U-shaped structure. The shell loading gripper 202 can transfer the shells in the shell magazine 201 to the moving trolley 102 in the shell loading position 205. The shell loading gripper 202 is arranged at the short side of the bottom of the U-shaped structure and can transfer the shell materials on the feeding vehicle 203 to the moving trolley 102, thus completing the shell loading process.

[0048] As Figure 1 shown, in the first embodiment, the shell loading position 205 and the shell storage part are arranged at the notch formed by the seventh section L7 and the tenth section L10; as Figure 2 shown, in the second embodiment, the shell loading position 205 and the shell storage part are arranged at the sides of the first section L1, the second section L2 and the sixth section L6. Whether it is the first embodiment or the second embodiment, the shell loading position 205 and the shell storage part are both arranged at the Figure 1 and Figure 2 lower right corner in, so there is no need to connect the rest of the loop of the battery cell production line at this place, and it is also convenient for transporting materials.

[0049] Preferably, the feeding vehicle 203 can be, for example, an AGV vehicle, a rail vehicle or other carrying equipment.

[0050] Preferably, as Figure 1 and Figure 2 shown, in the embodiment, the shell storage part further includes a shell preparation magazine 204 arranged at the side of the shell magazine 201 for additionally storing shells as preparation materials.

[0051] Preferably, as Figure 1 and Figure 2 shown, in the embodiment, the shell loading mechanism includes a first detection device 301, a deviation rectifying device 302 and a first dust removal part 303. The first detection device 301 is arranged at the downstream position of the shell loading position 205 to detect the weld position of the shells on the moving trolley 102. Optionally, the first detection device 301 can be an image acquisition device, such as a CCD camera.

[0052] The deviation rectifying device 302 is arranged at the downstream position of the first detection device 301 and is used to adjust the direction of the housing. Preferably, the deviation rectifying device 302 can be a manipulator or an electric lever. The deviation rectifying device 302 can be communicatively connected to the first detection device 301 and is arranged at the downstream position of the first detection device 301 to straighten the housing placed in the reverse direction on the mobile trolley 102 according to the information fed back by the first detection device 301.

[0053] The first dust removal part 303 is arranged at the downstream position of the deviation rectifying device 302 and is used to remove dust from the housing on the mobile trolley 102. Optionally, the first dust removal part 303 can include a blowing part and an adsorption part which are arranged opposite to each other. When the mobile trolley 102 loaded with the housing flows to the first dust removal part 303, the blowing part and the adsorption part can be respectively docked with the two ports of the housing, thereby effectively improving the dust removal efficiency and quality of the first dust removal part 303, realizing the dust removal of the internal space of the housing, and thus ensuring the cleanliness of the housing. The blowing part can be the air outlet interface of a positive pressure device, and the positive pressure device can be a positive pressure air pump, a fan, a blower, etc. Correspondingly, the adsorption part can be the air inlet of a negative pressure device, and the negative pressure device can be a negative pressure air pump, an air compressor, etc.

[0054] As Figure 1 shown, in the first embodiment, the housing loading mechanism is arranged at the connection of the seventh section L7 and the eighth section L8, which is convenient for detection and loading at the same time. As Figure 2 shown, in the second embodiment, the housing loading mechanism is arranged at the connection of the second section L2 and the third section L3, which is convenient for detection and loading at the same time.

[0055] Preferably, as Figure 1 and Figure 2 shown, in the embodiment, the core inserting mechanism into the housing can include an inserting part into the housing and an inserting gripper 401 into the housing. The inserting part into the housing is arranged on one side of the conveying line body and is used to insert the core to be processed into the housing. The inserting gripper 401 into the housing can transfer the housing on the mobile trolley 102 to the inserting part into the housing and transfer the core to be processed that has completed the inserting process in the inserting part into the housing to the mobile trolley 102. In this way, the assembly process of inserting the core into the housing can be realized.

[0056] Preferably, as Figure 1 , Figure 2 and Figure 4 shown, in the embodiment, the core inserting mechanism into the housing can include a plurality of inserting parts into the housing and a plurality of inserting grippers 401 into the housing. The plurality of inserting parts into the housing are arranged in sequence along the transmission direction of the conveying line body, and at least one inserting gripper 401 into the housing is correspondingly arranged for each inserting part into the housing; the inserting part into the housing can include a plurality of inserting devices 402, and the plurality of inserting devices 402 are arranged in sequence along the conveying direction of the conveying line body to realize the simultaneous inserting and assembling process of multiple groups of cores to be processed.

[0057] Preferably, as Figure 1 , Figure 2 and Figure 4 shown, the battery cell casing inserting mechanism may include four casing inserting parts (for example, each casing inserting part may include two casing inserting devices 402), and each casing inserting part corresponds to a casing inserting gripper 401. However, it is not limited thereto, and the number of casing inserting parts can be adaptively adjusted according to the size of the layout site, production rhythm, etc.

[0058] As Figure 1 , Figure 2 and Figure 4 shown, taking the above-mentioned casing inserting part including two casing inserting devices 402 as an example, the casing inserting gripper 401 can complete the two-way loading and unloading of one of the casing inserting devices 402 in the casing inserting part. Here, the two-way loading and unloading means that after the casing inserting gripper 401 transfers the casing on the moving trolley 102 to the casing inserting part and transfers the battery cell to be processed that has completed the casing inserting process in the casing inserting part to the moving trolley 102, the casing inserting gripper 401 can directly move to another casing inserting device 402 in the casing inserting part and achieve docking, and then execute the two-way loading and unloading of the other casing inserting device 402. In this way, since the casing inserting gripper 401 can move, the casing inserting and assembling time of one of the casing inserting devices 402 in the casing inserting part is fully utilized, and the two-way loading and unloading of the other casing inserting device 402 in the casing inserting part is executed, improving the production efficiency and increasing the production capacity.

[0059] Preferably, the casing inserting gripper 401 may include a manipulator and a slide rail that are slidably connected to each other. The manipulator can be used for two-way loading and unloading between the casing inserting part and the moving trolley 102, and the manipulator can slide along the slide rail to achieve docking with different casing inserting devices 402. In addition, it should be noted that the casing inserting device 402 is an existing device in the art, and its structure and principle will not be elaborated here.

[0060] Preferably, as Figure 1 and Figure 2 shown, in the embodiment, the battery cell casing inserting mechanism may further include a first defective product outflow part 403 and a second dust removal part 404. The first defective product outflow part 403 is arranged at the downstream position of the casing inserting part and is used to receive defective products; the second dust removal part 404 is arranged at the downstream position of the casing inserting part to remove dust from the battery cell to be processed that has completed the casing inserting process.

[0061] As Figure 1 shown, in the first embodiment, the battery cell casing inserting mechanism is arranged in the eighth section L8. In this way, the battery cell casing inserting mechanism can receive the casings from the previous production line and perform the processes of casing inserting, dust removal and detection. As Figure 2As shown in the figure, in the second embodiment, the battery cell casing mechanism is arranged in the third section L3. Similarly, such an arrangement can facilitate the battery cell casing mechanism to receive the casings from the previous production line and perform the processes of casing, dust removal, and detection.

[0062] Preferably, as Figure 1 and Figure 2 shown, in the embodiment, the polarity pressing and pre-welding mechanism includes a pre-welding gripper 501, a pressing part, and a welding part. Specifically, the pressing part is arranged on one side of the conveying line body, and the welding part is arranged at one end of the pressing part facing away from the conveying line body for welding and fixing the cover plate on the side where the first polarity of the battery cell to be processed is located to the casing. The pre-welding gripper 501 can transfer the battery cell to be processed on the moving trolley 102 to the pressing part and transfer the battery cell to be processed that has completed the welding process on the pressing part to the moving trolley 102. In this way, the battery cell to be processed transferred to the pressing part can be transferred to the pressing part via the pre-welding gripper 501. After performing the pressing action, the cover plate on the side where the first polarity of the battery cell to be processed is located is welded and fixed to the battery casing via the welding part. The welding part can perform spot welding and fixing on both the cover plate on the side where the first polarity of the battery cell to be processed is located and the battery casing to improve the welding accuracy and the welding yield.

[0063] Preferably, as Figures 1 to 3 shown, in the embodiment, the polarity pressing and pre-welding mechanism includes a plurality of pre-welding grippers 501, a plurality of pressing parts, and a plurality of welding parts. The plurality of pressing parts are arranged in sequence along the conveying direction of the conveying line body. Each pressing part is correspondingly provided with at least one pre-welding gripper 501 and at least one welding part, so as to enable the entire production line to simultaneously perform the operation of spot welding and fixing both the cover plate on the side where the first polarity is located and the casing for multiple groups of battery cells to be processed.

[0064] Preferably, as Figures 1 to 3 shown, in the embodiment, the pressing part may include a plurality of pressing devices 502. The plurality of pressing devices 502 are arranged in sequence along the conveying direction of the conveying line body. The pre-welding gripper 501 and the welding part can perform reciprocating movements in the conveying direction of the conveying line body so that the pre-welding gripper 501 and the welding part can respectively dock with the pressing devices 502 in their corresponding pressing parts one by one. The movable setting of the pre-welding gripper 501 and the welding part is similar to the above-mentioned casing gripper 401 and will not be elaborated here.

[0065] Preferably, as Figure 3 shown, the welding part may include a welding device 503 and a slide rail that are slidably connected to each other. The welding device 503 may be a laser welding machine, and one laser welding machine corresponds to the three pressing devices 502 of one pressing part.

[0066] Preferably, the pre-welding gripper 501 may include a manipulator and a slide rail that are slidably connected to each other, so as to enable both the pre-welding gripper 501 and the welding part to reciprocate in the transmission direction of the conveying line body. Similarly, one pre-welding gripper 501 corresponds to three pressing devices 502 of one pressing part.

[0067] As Figure 3 shown, in the embodiment, the polar pressing and pre-welding mechanism may include three pressing parts, that is, there are a total of twelve pressing devices 502, which are labeled as K1-K12 in Figure 2 , where K1-K3 are the first pressing part, K4-K6 are the second pressing part, K7-K9 are the third pressing part, and K10-K12 are the fourth pressing part.

[0068] In the process of loading and unloading the pre-welding gripper 501, when the moving trolley 102 loads the battery cells to be processed from the loading station, control the 12 groups of moving trolleys 102 to align with the 12 pressing devices 502 at the same time. At this time, the pre-welding grippers 501 corresponding to each pressing part are respectively aligned with the pressing device 502 labeled as K3, the pressing device 502 labeled as K6, the pressing device 502 labeled as K9, and the pressing device 502 labeled as K12. The simultaneous two-way loading and unloading of these four pressing devices 502 (the two-way loading and unloading here refers to the process that the pre-welding gripper 501 transfers the battery cells to be processed on the moving trolley 102 to the pressing part and transfers the battery cells to be processed that have completed the welding process in the pressing part to the moving trolley 102), and then the pressing devices 502 labeled as K2, K5, K8, and K11 perform simultaneous two-way loading and unloading; subsequently, the pressing devices 502 labeled as K1, K4, K7, and K10 perform simultaneous two-way loading and unloading; subsequently, the pressing devices 502 labeled as K3, K6, K9, and K12 perform simultaneous two-way loading and unloading, and then the above loading and unloading process is cycled.

[0069] Similarly, for the welding process of the welding device 503, it is similar to the process of loading and unloading the pre-welding gripper 501 described above, and still realizes the welding of the welding device 503 corresponding to each pressing device 502 in the order of K3, K6, K9, K12; K2, K5, K8, K11; K1, K4, K7, K10; K3, K6, K9, K12. Through the production process described in the figure, the production capacity and usage efficiency of the pre-welding gripper 501 and the welding device 503 are effectively improved.

[0070] Preferably, as Figure 1 and Figure 2 shown, in the embodiment, the polar pressing and pre-welding mechanism further includes a second detection device 504, and the second detection device 504 is arranged at the downstream position of the pressing part to detect the welding quality of the cover plate and the housing on the side where the first polarity of the battery cell to be processed is located. The second detection device 504 may include an image acquisition device, for example, a CCD camera.

[0071] Preferably, as Figure 1 and Figure 2 shown, in the embodiment, the polar press-fitting and pre-welding mechanism further includes a second defective product outflow part 505, and the second defective product outflow part 505 is arranged at the downstream position of the second detection device 504 to discharge the defective products generated in the upstream process of the conveyor line body located at the second defective product outflow part 505 from the conveyor line body.

[0072] As Figure 1 shown, in the first embodiment, the polar press-fitting and pre-welding mechanism is arranged in the ninth section L9. In this way, the polar press-fitting and pre-welding mechanism can facilitate the layout of the pre-welding gripper 501, the press-fitting device 502 and the welding device 503. These three can be arranged inside the loop, reducing the floor area. As Figure 2 shown, in the second embodiment, the polar press-fitting and pre-welding mechanism is arranged in the fourth section L4. Similarly, such an arrangement can facilitate the layout of the pre-welding gripper 501, the press-fitting device 502 and the welding device 503.

[0073] Preferably, as Figure 1 and Figure 2 shown, in the embodiment, the blanking mechanism includes a blanking gripping device 601, and the blanking gripping device 601 is arranged at the blanking station and can move the qualified work-in-progress battery cells out of the conveyor line body.

[0074] Preferably, as Figure 1 and Figure 2 shown, in the embodiment, the blanking mechanism further includes a branch buffer position, and the branch buffer position is arranged at the upstream position of the blanking station. Specifically, the branch buffer position can include a branch buffer vertical warehouse 602 and a buffer manipulator 603. The buffer manipulator 603 can transfer the qualified work-in-progress battery cells from the mobile trolley 102 to the branch buffer vertical warehouse 602. In this way, when the number of work-in-progress battery cells on the conveyor line body is more than the number that the blanking gripping device 601 can grip, the excess work-in-progress battery cells can be stored in the branch buffer vertical warehouse 602. When the number of work-in-progress battery cells on the conveyor line body is less than the number that the blanking gripping device 601 can grip, the work-in-progress battery cells in the branch buffer vertical warehouse 602 can be supplemented to the conveyor line body for the blanking manipulator to grip and blank, thereby improving the overall processing efficiency.

[0075] Preferably, as Figure 1 and Figure 2 shown, in the embodiment, the blanking mechanism further includes a maintenance channel 604, and the maintenance channel 604 is used for the maintenance of the mobile trolley 102. The mobile trolley 102 that needs to be maintained can enter the maintenance warehouse through the maintenance channel 604 for repair.

[0076] As Figure 1As shown, in the first embodiment, the blanking mechanism is located at the tenth section L10. In this way, the blanking mechanism can be docked with the next process to transfer the cased battery cells to the next process, and at the same time, it is convenient for the transfer and maintenance of the mobile trolley 102. As Figure 2 As shown, in the second embodiment, the blanking mechanism is arranged at the fifth section L5. Similarly, such an arrangement can facilitate the docking with the next process.

[0077] In the first layout mode of this battery cell casing production line, an upper return line and a lower return line are arranged, and the connection part provided between the two return lines is used to realize the position switching of the mobile trolley between the upper return line and the lower return line. The battery cell assembly is realized through the casing loading mechanism, battery cell casing mechanism, polarity pressing and pre-welding mechanism and blanking mechanism arranged on the loop. The mobile trolley fixture transports and processes in a pipeline-style integrated design, making use of the high flexibility, intelligence, modularity, high speed, high acceleration and other characteristics of the magnetic levitation system, effectively improving the transfer efficiency between each station of the production line and the overall working efficiency. In the second layout mode of this battery cell casing production line, the conveyor line body encloses to form a closed loop, and a hollow channel is formed under the conveyor line body. The hollow channel conducts the inside and outside of the conveyor line body. In this way, after the mobile trolley sequentially passes the casing loading mechanism, battery cell casing mechanism, polarity pressing and pre-welding mechanism and blanking mechanism for the battery cell to be processed, the mobile trolley can be conveyed to the casing loading mechanism again via the closed loop to realize the circulation of the mobile trolley. The distance of the mobile trolley's return conveyance is greatly shortened, effectively reducing the failure rate of the mobile trolley's return. And through the above-mentioned channel, it is convenient for personnel and materials to enter the interior of the space enclosed by the closed conveyor line. It can not only store materials in the interior of the space enclosed by the closed loop to improve the space utilization rate of the battery cell casing closed loop, but also facilitate loading and unloading at each station and shorten the loading and unloading path.

[0078] In addition, according to the second aspect of the present invention, a battery assembly system is provided, and the battery assembly system includes the battery cell casing production line as described above.

[0079] Finally, it should be noted that the above-described embodiments are only specific implementation manners of the present application, used to illustrate the technical solutions of the present application, rather than limiting it. The protection scope of the present application is not limited thereto. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that any person skilled in the technical field of the present application can still modify the technical solutions recorded in the foregoing embodiments, or can easily think of changes, or perform equivalent replacements on some of the technical features; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A battery cell casing insertion production line, characterized in that, The battery cell casing insertion production line includes: a magnetic levitation conveyor line, a casing loading mechanism, a battery cell casing insertion mechanism, a polarity pressing and pre-welding mechanism, and a blanking mechanism; the magnetic levitation conveyor line includes a conveyor line body and a moving trolley, and the moving trolley can move along the conveyor line body under the magnetic induction of the conveyor line body; the casing loading mechanism, the battery cell casing insertion mechanism, the polarity pressing and pre-welding mechanism, and the blanking mechanism are sequentially arranged along the conveying direction of the conveyor line body; The conveyor line body includes an upper return line and a lower return line, and connection parts are arranged at the ends of the upper return line and the lower return line. The moving trolley switches positions between the upper return line and the lower return line through the connection parts; or, the conveyor line body encloses to form a closed loop, and a hollow channel is formed below the conveyor line body. The hollow channel conducts the inside and outside of the conveyor line body, and personnel and materials can enter the hollow channel and the storage area through the logistics channel to improve the space utilization rate of the conveyor line; The blanking mechanism includes a blanking gripping device arranged at the blanking station, which can remove the qualified battery cells to be processed from the conveyor line body; a branch line buffer position arranged upstream of the blanking station. The branch line buffer position includes a branch line buffer vertical warehouse and a buffer manipulator, and the buffer manipulator can transfer the qualified battery cells to be processed from the moving trolley to the branch line buffer vertical warehouse.

2. The cell casing insertion production line according to claim 1, wherein When the conveyor line body encloses to form a ring, the ring has a notch; and / or A first connection part is arranged at the first end of the upper return line and the lower return line, and a second connection part is arranged at the second end of the upper return line and the lower return line. The moving trolley moves along the upper return line to the first connection part, and the first connection part moves the moving trolley to the lower return line. The moving trolley descending to the lower return line moves along the lower return line to the second connection part, and the second connection part moves the moving trolley to the upper return line.

3. The cell-in-shell production line according to claim 2, characterized in that, A casing loading position and a casing storage part are arranged on the conveyor line body. The casing storage part includes a casing storage bin, a casing loading gripper, and a feeding vehicle. The casing storage bin is used for storing casings, the casing loading gripper can transfer the casings in the casing storage bin to the moving trolley in the casing loading position, and the feeding vehicle is arranged in the casing storage bin for transporting casings.

4. The cell casing insertion production line according to claim 3, characterized in that, The casing loading mechanism includes: A first detection device arranged downstream of the casing loading position for detecting the weld position of the casing on the moving trolley; A deviation correction device arranged downstream of the first detection device for adjusting the direction of the casing; A first dust removal part arranged downstream of the deviation correction device for removing dust from the casing on the moving trolley.

5. The cell casing insertion production line according to claim 1, characterized in that, The battery cell casing insertion mechanism includes a casing insertion part and a casing insertion gripper. The casing insertion part is arranged on one side of the conveying line body and is used for inserting the battery cell to be processed into the casing. The casing insertion gripper can transfer the casing on the moving trolley to the casing insertion part and transfer the battery cell to be processed that has completed the casing insertion process in the casing insertion part to the moving trolley.

6. The cell casing insertion production line according to claim 5, wherein, The battery cell casing insertion mechanism includes a plurality of the casing insertion parts and a plurality of the casing insertion grippers. The plurality of the casing insertion parts are arranged in sequence along the transmission direction of the conveying line body, and at least one of the casing insertion grippers is correspondingly arranged for each of the casing insertion parts; the casing insertion part includes a plurality of casing insertion devices, and the plurality of the casing insertion devices are arranged in sequence along the conveying direction of the conveying line body; And / or, the battery cell casing insertion mechanism further includes: The first defective product outflow part is arranged at the downstream position of the casing insertion part and is used for receiving defective products; The second dust removal part is arranged at the downstream position of the casing insertion part to remove dust from the battery cell to be processed that has completed the casing insertion process.

7. The battery cell case - loading production line according to claim 1, wherein, The polarity pressing and pre-welding mechanism includes a pre-welding gripper, a pressing part, and a welding part; The pressing part is arranged on one side of the conveying line body, and the welding part is arranged at one end of the pressing part facing away from the conveying line body and is used for welding and fixing the cover plate on the side where the first polarity of the battery cell to be processed is located to the casing. The pre-welding gripper can transfer the battery cell to be processed on the moving trolley to the pressing part and transfer the battery cell to be processed that has completed the welding process on the pressing part to the moving trolley.

8. The cell-in-shell production line according to claim 7, characterized in that, The polarity pressing and pre-welding mechanism includes a plurality of the pre-welding grippers, a plurality of the pressing parts, and a plurality of the welding parts. The plurality of the pressing parts are arranged in sequence along the conveying direction of the conveying line body, and at least one of the pre-welding grippers and at least one of the welding parts are correspondingly arranged for each of the pressing parts; The pressing part includes a plurality of pressing devices, and the plurality of the pressing devices are arranged in sequence along the conveying direction of the conveying line body. Both the pre-welding gripper and the welding part can reciprocate in the transmission direction of the conveying line body so that both the pre-welding gripper and the welding part can be respectively docked with the pressing devices in the corresponding pressing parts one by one; And / or, the polarity pressing and pre-welding mechanism further includes: The second detection device is arranged at the downstream position of the pressing part to detect the welding quality of the battery cell to be processed; The second defective product outflow part is arranged at the downstream position of the second detection device and is used for receiving defective products.

9. The battery cell casing insertion production line according to claim 1, characterized in that, The blanking mechanism further includes: The maintenance and repair channel is used for the maintenance and repair of the moving trolley.

10. A battery assembly system, characterized in that, The battery assembly system includes the battery cell casing insertion production line according to any one of claims 1 to 9.

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