Fixing device and battery cell production system

Abstract

The present application provides a fixing device and a battery cell production system. The fixing device is used for fixing a battery cell prefabricated part and comprises a first supporting base, a bearing member, a clamping assembly and a driving assembly; the clamping assembly is arranged on the first supporting base; the clamping assembly comprises a first clamping member, a second clamping member, a third clamping member and a fourth clamping member, and the first clamping member and the second clamping member are arranged on two opposite sides of the bearing member in a first direction; the third clamping member and the fourth clamping member are arranged on two opposite sides of the bearing member in a second direction; the driving assembly is configured to be capable of driving the first clamping member and the second clamping member to be far away from or close to each other in the first direction, and driving the third clamping member and the fourth clamping member to be far away from or close to each other in the second direction. In this way, a space for containing the battery cell prefabricated part can be adaptively adjusted in the horizontal direction on the basis of the shape and / or size of the battery cell prefabricated part, and the application range of the fixing device in the present application is widened.

Description

Fixing device and battery monomer production system

[0001] [Cross-reference to related applications]

[0002] This application claims priority based on Chinese patent application No. 2023232837739 filed on November 30, 2023, and all of its contents are incorporated herein by reference.

Technical field

[0003] The present application relates to the field of batteries, and in particular to a fixing device and a battery monomer production system. [Background Technology]

[0004] Welding is an important step in the battery production process, and the battery cell preforms need to be fixed during the welding process and the dust removal process after welding. In the existing technology, the fixing device for fixing the battery has a fixed space for accommodating the battery cell preforms, and cannot be adaptively adjusted to the size and / or shape of different battery cell preforms. As a result, different fixing devices are required when preparing different battery cells, which increases production costs and limits the flexibility of battery generation.

[0005] [Summary of the invention]

[0006] The main technical problem solved by the present application is to provide a fixing device and a battery cell production system that can be used to produce battery cells of different shapes and / or sizes.

[0007] To solve the above technical problems, in the first aspect, a technical solution adopted in the present application is to provide a fixing device for fixing a battery cell preform, and comprising a first supporting base, a carrier, a clamping assembly and a driving assembly, wherein the carrier is arranged on the top of the first supporting base; the clamping assembly is arranged on the first supporting base; the clamping assembly comprises a first clamping member and a second clamping member and a third clamping member and a fourth clamping member, the first clamping member and the second clamping member are arranged on opposite sides of the carrier along the first direction; the third clamping member and the fourth clamping member are arranged on opposite sides of the carrier along the second direction; the second direction intersects with the first direction and is basically parallel to the horizontal direction; the driving assembly is arranged on the first supporting base and connected to the clamping assembly; the driving assembly is configured to be able to drive the first clamping member and the second clamping member away from or closer to each other along the first direction, and to be able to drive the third clamping member and the fourth clamping member away from or closer to each other along the second direction.

[0008] In the above technical solution, by providing a clamping assembly including a first clamping member and a second clamping member as well as a third clamping member and a fourth clamping member, and the driving assembly is capable of driving the first clamping member and the second clamping member to move away from or approach each other along the first direction, and is capable of driving the third clamping member and the fourth clamping member to move away from or approach each other along the second direction, the space of the fixing device for accommodating the battery cell preform can be adaptively adjusted in the horizontal direction according to the shape and / or size of the battery cell preform.

[0009] In some embodiments, the driving assembly includes an opening clamping mechanism and an elastic mechanism, wherein the opening clamping mechanism is connected to the clamping assembly; the opening clamping mechanism is configured to drive the first clamping member and the second clamping member away from each other along the first direction, and to drive the third clamping member and the fourth clamping member away from each other along the second direction; the elastic mechanism is connected to the clamping assembly, and the elastic mechanism is configured to drive the first clamping member and the second clamping member toward each other along the first direction, and to drive the third clamping member and the fourth clamping member toward each other along the second direction.

[0010] In the above technical solution, the first clamping member and the second clamping member are moved away from each other, and the third clamping member and the fourth clamping member are moved away from each other, by means of an opening and closing mechanism, and the first clamping member and the second clamping member are moved closer to each other, and the third clamping member and the fourth clamping member are moved closer to each other by means of an elastic mechanism. The structure is simple and the operation is convenient.

[0011] In some embodiments, the clamping mechanism includes a pressure block and a connecting rod mechanism, and the pressure block and the first clamping member are arranged on the same side of the supporting member; the connecting rod mechanism is respectively connected to the pressure block, the second clamping member, the third clamping member and the fourth clamping member; wherein, when an external force presses the pressure block along the first direction, the connecting rod mechanism drives the second clamping member away from the first clamping member, and drives the third clamping member and the fourth clamping member away from each other along the second direction, and at the same time drives the elastic mechanism to generate elastic potential energy; when the external force pressing the pressure block disappears, the elastic mechanism releases the elastic potential energy, drives the second clamping member close to the first clamping member, and drives the third clamping member and the fourth clamping member close to each other along the second direction, and drives the pressure block to reset through the connecting rod mechanism.

[0012] In the above technical solution, an opening and closing mechanism is provided, including a pressing block and a connecting rod mechanism, and by applying an external force to the pressing block, the connecting rod mechanism can drive the second clamping member away from the first clamping member, and drive the third clamping member and the fourth clamping member away from each other along the second direction. When the external force applied to the pressing block is removed, the elastic mechanism can drive the second clamping member close to the first clamping member, and drive the third clamping member and the fourth clamping member close to each other along the second direction. In this way, the change in the space for clamping the battery cell preform is achieved only by whether pressure is applied to the pressing block, which is simple, efficient and highly automated.

[0013] In some embodiments, the fixing device further includes a second supporting base disposed at the bottom of the first supporting base; wherein the first supporting base is configured to be able to slide relative to the second supporting base along the first direction.

[0014] In the above technical solution, by providing a fixing device including a second supporting base, and the first supporting base being able to slide relative to the second supporting base along the first direction, when the welding device or the dust removal device needs to be positioned with the battery cell preform, the battery cell preform can be floated along the first direction, thereby reducing the risk of the welding device or the dust removal device moving too far and damaging the battery cell preform, and can also play a role in determining the defocus amount.

[0015] In some embodiments, a slide rail, a first limit block, and a second limit block are provided on the second supporting base; the first supporting base is slidably provided on the slide rail; the first limit block and the second limit block are configured to limit the range of sliding of the first supporting base relative to the second supporting base along the first direction.

[0016] In the above technical solution, a slide rail, a first limit block and a second limit block are arranged on the second supporting base, wherein the slide rail provides a track for the sliding of the first supporting base, reducing the risk of shaking in other directions, and the first limit block and the second limit block limit the sliding range of the first supporting base, reducing the risk of the first supporting base slipping.

[0017] In some embodiments, along the first direction, the fixing device has a front and a back; the first limit block is arranged on the back of the first supporting base, and the second limit block is arranged on the front of the first supporting base; a first spring is arranged between the first limit block and the first supporting base.

[0018] In the above technical solution, a first spring is provided between the first limit block and the first supporting base. When the external force is removed, the first spring provides elastic force to drive the first supporting base to return to its original position. Therefore, the fixing device provided in this application can be used repeatedly.

[0019] In some embodiments, the fixing device further includes a traction fixing member, and the traction fixing member is fixed on the second supporting base.

[0020] In the above technical solution, by providing a traction fixture, the migration fixture can follow the traction mechanism to move, and then reach a predetermined workstation to perform corresponding operations, thereby improving the degree of automation.

[0021] In some embodiments, the traction fixing element has a traction groove.

[0022] In the above technical solution, the traction groove is provided so that the traction member of the traction mechanism can be easily inserted into and removed from the traction member.

[0023] In some embodiments, the fixing device further includes a first connecting mechanism and a second connecting mechanism, wherein the first connecting mechanism and the second connecting mechanism are fixed on the second supporting base and are disposed on opposite sides of the first supporting base along the second direction.

[0024] In the above technical solution, by arranging a first connecting mechanism and a second connecting mechanism on opposite sides of the first supporting base, it is possible to facilitate the installation and fixation of two adjacent fixing devices, and multiple fixing devices provided in this application can be applied to large-scale production processes. Moreover, the installation and disassembly of the fixing devices can be facilitated by traction, making the battery production process more flexible.

[0025] In some embodiments, the first connecting mechanism includes a first connecting arm, and the surface of the first connecting arm has a connecting groove; the connecting groove extends along a third direction, and the connecting groove has a first end and a second end relative to each other in the third direction, and the first end and the second end are both open ends, and the third direction is a vertical direction; the second connecting mechanism includes a second connecting arm and a roller, and the roller is arranged on the second connecting arm; wherein, the roller is configured to be able to enter the connecting groove from the first end of the connecting groove and slide out of the connecting groove from the second end of the connecting groove along the third direction.

[0026] In the above technical solution, the first connecting mechanism includes a first connecting arm, the surface of the first connecting arm has a connecting groove, and the second connecting mechanism includes a second connecting arm and a roller, and the roller is arranged on the second connecting arm; and the roller can enter the connecting groove from the first end of the connecting groove and slide out of the connecting groove from the second end of the connecting groove along the third direction, so that two adjacent fixing devices can be installed by sliding, and the design of the roller can reduce the friction between the first connecting mechanism and the second connecting mechanism during the installation process, thereby improving safety performance and service life.

[0027] In order to solve the above technical problems, in a second aspect, another technical solution adopted by the present application is to provide a battery monomer production system, and the fixing device provided in any one of the above embodiments of the battery monomer production system.

[0028] In the above technical solution, by providing a clamping assembly including a first clamping member and a second clamping member as well as a third clamping member and a fourth clamping member, and the driving assembly is capable of driving the first clamping member and the second clamping member to move away from or approach each other along the first direction, and is capable of driving the third clamping member and the fourth clamping member to move away from or approach each other along the second direction, the space of the fixing device for accommodating the battery cell preform can be adaptively adjusted in the horizontal direction according to the shape and / or size of the battery cell preform.

[0029] In some embodiments, the battery monomer production system further includes a first guide rail, a welding device, and a dust removal device; the first guide rail extends along the second direction, and the welding device and the dust removal device are arranged on the same side of the first guide rail; the fixing device is slidably arranged on the first guide rail and is configured to pass through the welding device and the dust removal device in sequence.

[0030] In the above technical solution, the battery cell production system also includes a first guide rail, a welding device and a dust removal device; the first guide rail extends along the second direction, and the welding device and the dust removal device are arranged on the same side of the first guide rail; the fixing device is slidably arranged on the first guide rail, and is configured to pass through the welding device and the dust removal device in sequence. The battery cell preform can be involved in different processes through a fixing device, thereby improving production efficiency.

[0031] In some embodiments, the fixing device is any of the above-mentioned fixing devices with a traction fixing member; the battery monomer production system also includes a second guide rail and a traction mechanism, the second guide rail is arranged parallel to the first guide rail along the side away from the welding device; the traction mechanism is slidably arranged on the second guide rail, and the traction mechanism is configured to pull the fixing device to move along the second direction through the traction fixing member.

[0032] In the above technical solution, by providing a traction fixing piece, the migration fixing device can move with the traction mechanism and then reach the predetermined workstation to perform corresponding operations, thereby improving the degree of automation; by providing a traction groove, the traction piece of the traction mechanism is conveniently inserted and disengaged, and the traction wheel can slide in the traction groove to reduce friction; by providing a first connecting mechanism and a second connecting mechanism on opposite sides of the first supporting base, the two adjacent fixing devices can be conveniently installed and fixed, and multiple fixing devices provided by the present application can be applied to large-scale production processes, and the installation and disassembly of the fixing devices can be conveniently performed by traction, making the battery production process more flexible; the first connecting mechanism includes a first connecting arm, the surface of the first connecting arm has a connecting groove, and the second connecting mechanism includes a second connecting arm and a roller, and the roller is provided on the second connecting arm; and the roller can enter the connecting groove from the first end of the connecting groove and slide out of the connecting groove from the second end of the connecting groove along the third direction, so that the two adjacent fixing devices can be installed by sliding, and the design of the roller can reduce the friction between the first connecting mechanism and the second connecting mechanism during installation, thereby improving safety performance and service life.

[0033] In some embodiments, the fixing device includes a first connecting mechanism and a second connecting mechanism, which are fixed on the second supporting base and disposed on opposite sides of the first supporting base along the second direction.

[0034] Optionally, in the fixing device, the first connecting mechanism includes a first connecting arm, and the surface of the first connecting arm has a connecting groove; the connecting groove extends along a third direction, and the connecting groove has a first end and a second end relative to each other in the third direction, and the first end and the second end are both open ends, and the third direction is a vertical direction; the second connecting mechanism includes a second connecting arm and a roller, and the roller is arranged on the second connecting arm; wherein, the roller is configured to be able to enter the connecting groove from the first end of the connecting groove and slide out of the connecting groove from the second end of the connecting groove along the third direction.

[0035] Multiple fixing devices are arranged side by side on the first guide rail and connected to each other; when one of the two adjacent fixing devices reaches the workstation where the welding device is located, the other reaches the workstation where the dust removal device is located; the traction mechanism drives multiple fixing devices to move together along the second direction by pulling the leading fixing device.

[0036] In the above technical solution, by arranging a first connecting mechanism and a second connecting mechanism on opposite sides of the first supporting base, it is possible to facilitate the installation and fixation of two adjacent fixing devices, and multiple fixing devices provided by the present application can be applied to large-scale production processes, and the installation and disassembly of the fixing devices can be facilitated by traction, making the battery production process more flexible; the first connecting mechanism includes a first connecting arm, the surface of the first connecting arm has a connecting groove, and the second connecting mechanism includes a second connecting arm and a roller, and the roller is arranged on the second connecting arm; and the roller can enter the connecting groove from the first end of the connecting groove and slide out of the connecting groove from the second end of the connecting groove along the third direction, so that the two adjacent fixing devices can be installed by sliding, and the design of the roller can reduce the friction between the first connecting mechanism and the second connecting mechanism during the installation process, thereby improving safety performance and service life; by one of the two adjacent fixing devices reaching the workstation where the welding device is located at the same time as the other reaches the workstation where the dust removal device is located, it is possible to immediately clean the welding slag of the battery cell preform in the fixing device after welding, thereby improving production efficiency.

[0037] In some embodiments, in the fixing device, the first connecting mechanism includes a first connecting arm, and the surface of the first connecting arm has a connecting groove; the connecting groove extends along a third direction, and the connecting groove has a first end and a second end relative to each other in the third direction, and the first end and the second end are both open ends, and the third direction is a vertical direction; the second connecting mechanism includes a second connecting arm and a roller, and the roller is provided on the second connecting arm; wherein the roller is configured to be able to enter the connecting groove from the first end of the connecting groove and slide out of the connecting groove from the second end of the connecting groove along the third direction.

[0038] The battery monomer production system also includes a first lifting assembly, a second lifting assembly, and a transmission mechanism; the first lifting assembly is arranged at the first end of the first guide rail, the second lifting assembly is arranged at the second end of the first guide rail, and the transmission mechanism is arranged above the first guide rail; the traction mechanism pulls the fixing device from the first end of the first guide rail to the second end of the first guide rail; the second lifting assembly lifts the fixing device moved to the second end of the first guide rail; the transmission mechanism transports the lifted fixing device from above the second end of the first guide rail to above the first end of the first guide rail; the first lifting assembly lowers the fixing device transported to above the first end of the first guide rail to the first end of the first guide rail; wherein, when the second lifting assembly lifts the fixing device moved to the second end of the first guide rail, the lifted fixing device automatically detaches from the subsequent fixing device; when the first lifting assembly lowers the fixing device transported to above the first end of the first guide rail to the first end of the first guide rail, the lowered fixing device automatically connects to the previous fixing device.

[0039] In the above technical solution, by setting up a battery cell production system including a first lifting assembly, a second lifting assembly and a transmission mechanism, it is possible to replace the battery cell preforms that have been welded and dusted with the battery cell preforms that need to be welded and dusted in the process, thereby reducing the number of interruptions required in the entire battery production process.

Brief Description of the Drawings

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0041] FIG1 is a schematic structural diagram of a battery cell preform;

[0042] FIG2 is a schematic diagram of a partial structure of the battery cell preform of FIG1 ;

[0043] FIG3 is a schematic structural diagram of a fixing device and a battery cell preform provided in some embodiments of the present application;

[0044] FIG4 is a schematic structural diagram of a fixing device and a battery cell preform provided in some embodiments of the present application from another perspective;

[0045] FIG5 is a top view of the fixing device and the battery cell preform in FIG3 ;

[0046] FIG6 is a bottom view of the fixing device and the battery cell preform of FIG3 ;

[0047] FIG7 is a rear view of the fixing device and the battery cell preform of FIG3 ;

[0048] FIG8 is a front view of the fixing device and the battery cell preform of FIG3;

[0049] FIG9 is a schematic structural diagram of a battery monomer production system provided in some embodiments of the present application;

[0050] FIG10 is a top view of the battery cell production system in FIG9 ;

[0051] FIG11 is a top view of a battery cell production system provided by another embodiment of the present application;

[0052] FIG12 is a partial structural schematic diagram of the traction wheel and traction mechanism of the battery cell production system provided in some embodiments of the present application.

[0053] Description of Figure Numbers:

[0054] 1-fixing device, 10-first supporting base, 11-first slide rail, 12-second slide rail, 20-carrying member, 30-clamping assembly, 31-first clamping member, 32-second clamping member, 33-third clamping member, 34-fourth clamping member, 40-driving assembly, 41-clamping mechanism, 410-pressing block, 411-connecting rod mechanism, 42-elastic mechanism, 50-second supporting base, 51-slide rail, 52-first limit block, 53-second limit block, 54-first spring, 60-traction fixing member, 61-traction groove, 70-first connecting mechanism, 7 1-first connecting arm, 72-connecting groove, 80-second connecting mechanism, 81-second connecting arm, 82-roller, 1000-battery monomer production system, 2-first guide rail, 3-welding device, 4-dust removal device, 5-second guide rail, 6-traction mechanism, 62-traction wheel, 7-first lifting assembly, 8-second lifting assembly, 9-transmission mechanism, 100-welding station, 200-dust removal station, 2000-battery monomer preform, 2100-hollow pole, 2200-gap, 2300-ear, 2400-shell, 2500-battery cell. [Specific implementation method]

[0055] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0056] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are for the purpose of describing specific embodiments only and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or apparatuses.

[0057] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0058] In the description of the embodiments of the present application, the technical terms "first", "second", "third", etc. are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more (including two), such as two, three, etc., unless otherwise clearly and specifically defined. Similarly, "multiple groups" refers to two or more groups (including two groups), and "multiple pieces" refers to two or more pieces (including two pieces).

[0059] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0060] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or position relationship based on the relative orientation or position relationship between the components in a certain specific posture (as shown in the drawings) shown in the drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply 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 on the embodiments of the present application.

[0061] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0062] In this application, battery cells may include lithium-ion batteries, sodium-ion batteries, or magnesium-ion batteries. Battery cells may be cylindrical, flat, or in other shapes. Battery cells are generally categorized into three types based on packaging: cylindrical, prismatic, and pouch-type. A battery cell preform refers to the structure of a battery cell prior to welding the terminal post. For ease of explanation, the following examples use lithium-ion batteries as an example.

[0063] In the field of new energy, lithium-ion batteries have become one of the focuses of high-tech development due to their advantages such as high voltage, high capacity, low consumption, no memory effect, pollution-free, small size, low internal resistance, low self-discharge, and many cycles.

[0064] To meet market demand, the applicant has developed a new battery cell. Please refer to Figures 1 and 2 , where Figure 1 is a schematic structural diagram of a new battery cell preform developed by the applicant, and Figure 2 is a partial structural diagram of the battery cell preform of Figure 1 . The battery cell preform 2000 includes a shell 2400, a battery cell 2500, a bottom end cover (not shown) and a hollow pole 2100; wherein, the battery cell 2500 is loaded into the shell 2400 from the bottom port of the shell 2400, and the bottom end cover seals the bottom of the shell 2400; the hollow pole 2100 is embedded in the top wall of the shell 2400, and the hollow pole 2100 includes an annular side wall and a bottom wall, and the bottom wall of the hollow pole 2100 has an opening (not shown); the battery cell 2500 has a pole ear 2300, and the pole ear 2300 is inserted into the hollow pole 2100 from the opening of the bottom wall of the hollow pole 2100, and is welded to the bottom wall of the hollow pole 2100 after being bent. The hollow pole 2100 of a new battery cell preform 2000 is directly welded to the tab 2300. Consequently, the welding process produces stripe-shaped weld marks, and during dust removal, a dust brush must be moved back and forth along the width of the tab 2300. Furthermore, a gap 2200 exists between the tab 2300 and the sidewall of the bottom opening of the hollow pole 2100. Laser welding and other processes generate a large amount of welding slag and other substances. Due to its small size, the slag is easily absorbed by structures such as the pole piece, or it can fall through the gap 2200 of the battery cell preform 2000 into the interior of the battery cell preform 2000, causing contamination and affecting the performance and service life of the battery. Therefore, during both welding and dust removal, the battery cell preform 2000 is kept flat, with the gap 2200 located on the side, not the top.

[0065] Welding is a crucial step in lithium-ion battery production, and the battery cell preforms must be secured during both the welding process and the post-weld dust removal process. Because existing battery cell preforms are positioned vertically during welding, the space within the cell preforms typically accommodated by conventional fixtures is vertically adjustable. Consequently, existing fixtures are unsuitable for the new battery cell preform 2000 developed by the applicant.

[0066] In order to solve one or more of the above technical problems, an embodiment of the present application provides a fixing device for fixing a battery cell preform, and includes a first supporting base, a carrier, a clamping assembly and a driving assembly, wherein the carrier is arranged on the top of the first supporting base; the clamping assembly is arranged on the first supporting base; the clamping assembly includes a first clamping member and a second clamping member and a third clamping member and a fourth clamping member, the first clamping member and the second clamping member are arranged on opposite sides of the carrier along a first direction; the third clamping member and the fourth clamping member are arranged on opposite sides of the carrier along a second direction; the second direction intersects with the first direction and is substantially parallel to the horizontal direction; the driving assembly is arranged on the first supporting base and connected to the clamping assembly; the driving assembly is configured to drive the first clamping member and the second clamping member to move away from or towards each other along the first direction, and to drive the third clamping member and the fourth clamping member to move away from or towards each other along the second direction; in this way, the space of the fixing device for accommodating the battery cell preform 2000 can be adaptively adjusted in the horizontal direction according to the shape and / or size of the battery cell preform 2000.

[0067] The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0068] Please refer to Figures 3 to 8, wherein Figure 3 is a structural schematic diagram of the fixing device 1 and the battery cell preform 2000 provided in some embodiments of the present application; Figure 4 is a structural schematic diagram of the fixing device 1 and the battery cell preform 2000 provided in some embodiments of the present application from another perspective; Figure 5 is a top view of the fixing device and the battery cell preform in Figure 3; Figure 6 is a bottom view of the fixing device 1 and the battery cell preform 2000 in Figure 3; Figure 7 is a rear view of the fixing device 1 and the battery cell preform 2000 in Figure 3; and Figure 8 is a front view of the fixing device 1 and the battery cell preform 2000 in Figure 3.

[0069] The fixing device 1 provided in the present application is used to fix a battery cell preform 2000 , and includes a first supporting base 10 , a carrier 20 , a clamping assembly 30 and a driving assembly 40 .

[0070] The first support base 10 is used to mount the carrier 20, the clamping assembly 30, and / or the driving assembly 40. The first support base 10 may be plate-shaped so that the mounting surface of the first support base 10 is relatively flat, facilitating the installation and fixation of the carrier 20, the clamping assembly 30, and / or the driving assembly 40.

[0071] The support member 20 is disposed on top of the first support base 10 to support the battery cell preform 2000. The top refers to the side of the first support base 10 that is away from the ground during use of the fixture 1. In some embodiments, the support member 20 may be a support plate. The shape and material of the support member 20 can be selected as needed and are not specifically limited in this application.

[0072] The clamping assembly 30 is disposed on the first supporting base 10 and is used to define a space for accommodating the battery cell preform 2000, thereby securely clamping the battery cell preform 2000 from multiple positions. In some embodiments, the clamping assembly 30 can clamp the flat battery cell preform 2000 from four sides, including two surfaces facing each other in a first direction and two surfaces facing each other in a second direction. Specifically, the clamping assembly 30 can include a first clamping member 31, a second clamping member 32, a third clamping member 33, and a fourth clamping member 34.

[0073] The first clamping member 31 and the second clamping member 32 are disposed on opposite sides of the carrier 20 along a first direction to clamp the battery cell preform 2000 from the first direction. The third clamping member 33 and the fourth clamping member 34 are disposed on opposite sides of the carrier 20 along a second direction to clamp the battery cell preform 2000 from the second direction. The second direction intersects the first direction and is substantially parallel to the horizontal direction. The first and second directions are related to the shape of the battery cell preform 2000. For example, when the battery cell preform 2000 is in the shape of a cube or a cuboid, the first direction is perpendicular to the second direction. In some embodiments, the first direction may be the X direction in Figure 1, and the second direction may be the Y direction in Figure 1. In some embodiments, the first clamping member 31, the second clamping member 32, the third clamping member 33, and the fourth clamping member 34 may each be a clamping plate, a clamping block, or a gripping clamp, and secure the battery cell preform 2000 by squeezing the battery cell preform 2000. The sizes and shapes of the first clamping member 31, the second clamping member 32, the third clamping member 33, and the fourth clamping member 34 may be the same or different, and may be selected as needed. In some embodiments, the first clamping member 31, the second clamping member 32, the third clamping member 33, and / or the fourth clamping member 34 may include a protective member that directly contacts the battery cell preform 2000. The protective member may be made of an elastic material such as rubber or silicone to reduce the risk of damage to the battery cell preform 2000 caused by friction, collision, or squeezing when clamping the battery cell preform 2000.

[0074] In some embodiments, the two hollow poles 2100 of the battery cell preform 2000 can be exposed by the second clamping member 32 for subsequent welding and / or dust removal. For example, the second clamping member 32 can be plate-shaped, covering the side of the battery cell preform 2000 where the two hollow poles 2100 are located, and can have two openings spaced apart, exposing the two hollow poles 2100. Alternatively, the second clamping member 32 can be strip-shaped, with a width less than or equal to the spacing between the two hollow poles 2100, so that the second clamping member 32 is positioned between the two hollow poles 2100 and does not block the two hollow poles 2100. In other embodiments, the first clamping member 31, the second clamping member 32, the third clamping member 33, and the fourth clamping member 34 can also be other structures such as clamps.

[0075] Furthermore, in some embodiments, a first slide rail 11 and a second slide rail 12 are disposed on the first supporting base 10, and the first slide rail 11 and the second slide rail 12 are disposed crosswise. For example, the first slide rail 11 is disposed along a first direction, and the second slide rail 12 is disposed along a second direction. The first clamping member 31 and the second clamping member 32 are disposed on the first slide rail 11, and the third clamping member 33 and the fourth clamping member 34 are disposed on the second slide rail 12.

[0076] The drive assembly 40 is disposed on the first supporting base 10 and connected to the clamping assembly 30. The drive assembly 40 can also be referred to as a drive device or a power device, and is used to provide power to the clamping assembly 30 and enable the clamping assembly 30 to operate. The drive assembly 40 can generate power from various drive sources. For example, in some embodiments, the drive source of the drive assembly 40 can be pneumatic or electric. Pneumatic means using air as a drive source, and its representative device is a cylinder. The cylinder transmits power by converting compressed air energy into linear motion. Electric means using electrical energy as a drive source, and its representative device is a motor. The motor converts electrical energy into mechanical energy and transmits power.

[0077] The embodiment of the present application is described using the example of a device including a cylinder as an example of a drive assembly 40. The drive assembly 40 is configured to drive the first clamp 31 and the second clamp 32 to move away from or toward each other in a first direction, and to drive the third clamp 33 and the fourth clamp 34 to move away from or toward each other in a second direction. When the first clamp 31 and the second clamp 32 move away from each other in the first direction, and the third clamp 33 and the fourth clamp 34 move away from each other in the second direction, the clamping space defined by the clamping assembly 30 becomes larger, which is conducive to the placement of the battery cell preform 2000. When the first clamp and the second clamp 32 move toward each other in the first direction, and the third clamp 33 and the fourth clamp 34 move toward each other in the second direction, the battery cell preform 2000 can be clamped for subsequent work.

[0078] In the above embodiment of the present application, the clamping assembly 30 includes a first clamping member 31 and a second clamping member 32 as well as a third clamping member 33 and a fourth clamping member 34, and the driving assembly 40 is capable of driving the first clamping member 31 and the second clamping member 32 to move away from or toward each other along the first direction, and is capable of driving the third clamping member 33 and the fourth clamping member 34 to move away from or toward each other along the second direction. The space of the fixing device 1 for accommodating the battery cell preform 2000 can be adaptively adjusted in the horizontal direction according to the shape and / or size of the battery cell preform 2000, thereby expanding the application scope of the fixing device 1 in the present application.

[0079] In some embodiments, the driving assembly 40 includes an opening mechanism 41 and an elastic mechanism 42 , wherein the opening mechanism 41 is connected to the clamping assembly 30 , and the elastic mechanism 42 is connected to the clamping assembly 30 .

[0080] In the embodiments of the present application, the opening mechanism 41 refers to a mechanical structure capable of driving the clamping assembly 30 to open, thereby enlarging the clamping space defined by the clamping assembly 30. Specifically, in some embodiments, the opening mechanism 41 is configured to drive the first clamping member 31 and the second clamping member 32 away from each other in a first direction, and to drive the third clamping member 33 and the fourth clamping member 34 away from each other in a second direction.

[0081] The elastic mechanism 42 is a mechanical structure capable of driving the clamping assembly 30 to close, thereby reducing the clamping space defined by the clamping assembly 30. Specifically, in some embodiments, the elastic mechanism 42 is configured to drive the first clamping member 31 and the second clamping member 32 toward each other in a first direction, and to drive the third clamping member 33 and the fourth clamping member 34 toward each other in a second direction. Furthermore, in some embodiments, the elastic mechanism 42 can be implemented by a spring.

[0082] In the above embodiment, the first clamping member 31 and the second clamping member 32 are moved away from each other, and the third clamping member 33 and the fourth clamping member 34 are moved away from each other by the clamping mechanism 41, and the first clamping member 31 and the second clamping member 32 are moved closer to each other, and the third clamping member 33 and the fourth clamping member 34 are moved closer to each other by the elastic mechanism 42. The structure is simple and the operation is convenient.

[0083] In some embodiments, the clamping mechanism 41 includes a pressure block 410 and a connecting rod mechanism 411. The pressure block 410 and the first clamping member 31 are arranged on the same side of the carrier 20. The connecting rod mechanism 411 is respectively connected to the pressure block 410, the second clamping member 32, the third clamping member 33, and the fourth clamping member 34. When an external force presses the pressure block 410 in a first direction, the connecting rod mechanism 411 drives the second clamping member 32 away from the first clamping member 31, and drives the third clamping member 33 and the fourth clamping member 34 away from each other in a second direction, while driving the elastic mechanism 42 to generate elastic potential energy. When the external force pressing the pressure block 410 disappears, the elastic mechanism 42 releases the elastic potential energy, drives the second clamping member 32 toward the first clamping member 31, and drives the third clamping member 33 and the fourth clamping member 34 toward each other in the second direction, and drives the pressure block 410 to reset through the connecting rod mechanism.

[0084] Specifically, in some embodiments, the external force applied to the pressing block 410 can be achieved by pressing with an external cylinder. This external force causes the pressing block 410 and the second clamping member 32 to be installed together. The pressing block 410 drives the third clamping member 33 and the fourth clamping member 34 on both sides to move away from each other in the second direction via the connecting rod mechanism 411, thereby achieving the clamp opening action. When the battery cell preform 2000 is placed on the carrier 20, the external cylinder moves away from the pressing block 410, and the elastic mechanism 42 provides elastic force to drive the third clamping member 33 and the fourth clamping member 34 toward each other in the second direction, clamping the battery cell preform 2000 in the second direction. Simultaneously, the connecting rod mechanism 411 drives the second clamping member 32 toward the first clamping member 31, clamping the battery cell preform 2000 in the first direction, thereby firmly clamping the two opposing surfaces of the battery cell preform 2000 in the first direction and the two opposing surfaces of the battery cell preform 2000 in the second direction.

[0085] Linkages 411, also known as low-pair mechanisms, are a type of mechanical component consisting of several (or more) components with defined relative motion connected by low-pairs (rotating or translatory pairs). Because most components in a mechanism are rod-shaped, rod-shaped components are often referred to as rods. Low-pairs utilize surface contact, making them wear-resistant. Furthermore, the contact surfaces of the rotating and translatory pairs are cylindrical and flat, making manufacturing simple and achieving high precision. Linkages 411 can achieve a variety of motions, including rotation, swing, translation, and complex planar or spatial motion, thus enabling the realization of known motion patterns and known trajectories.

[0086] In the above embodiment, since the clamping mechanism 41 includes a pressing block 410 and a connecting rod mechanism 411, and by applying an external force to the pressing block 410, the connecting rod mechanism can drive the second clamping member 32 away from the first clamping member 31, and drive the third clamping member 33 and the fourth clamping member 34 away from each other along the second direction, and when the external force applied to the pressing block 410 is removed, the elastic mechanism 42 can drive the second clamping member 32 to approach the first clamping member 31, and drive the third clamping member 33 and the fourth clamping member 34 to approach each other along the second direction, in this way, the change in the space for clamping the battery cell preform 2000 is achieved only by applying pressure to the pressing block 410 or not, which is simple, efficient and highly automated.

[0087] In some embodiments, the fixture 1 further includes a second supporting base 50 disposed at the bottom of the first supporting base 10 ; wherein the first supporting base 10 is configured to be slidable relative to the second supporting base 50 along a first direction.

[0088] In some embodiments, the second support base 50 is floated on the bottom of the first support base 10. The bottom refers to the side of the first support base 10 that is closest to the ground during use of the fixture 1. In other words, the second support base 50 can move within a certain range in a direction substantially parallel to the bottom of the first support base 10 to accommodate battery cell preforms 2000 of different shapes and sizes, making the fixture 1 of the present application more widely applicable and flexible. The second support base 50 can also be in the shape of a plate to ensure that the second support base 50 is parallel to the first support base 10, facilitating its movement.

[0089] The above-mentioned embodiment of the present application can also achieve that when the welding device or the dust removal device needs to be positioned with the battery cell preform 2000, the battery cell preform 2000 can be floated along the first direction, thereby reducing the risk of the welding device or the dust removal device moving too far and damaging the battery cell preform 2000, and can also play a role in determining the defocus amount.

[0090] In some embodiments, a slide rail 51, a first limit block 52, and a second limit block 53 are provided on the second supporting base 50; the first supporting base 10 is slidably provided on the slide rail 51; the first limit block 52 and the second limit block 53 are configured to limit the range of sliding of the first supporting base 10 relative to the second supporting base 50 along the first direction.

[0091] The slide rail 51 extends along the first direction, thereby enabling the second support base 50 to slide along the first direction. The provision of the slide rail 51 provides a track for the sliding of the first support base 10, reducing the risk of shaking in other directions. Furthermore, in some embodiments, two slide rails 51 are provided on the second support base 50, and the two slide rails 51 are arranged in parallel and spaced apart to further reduce the risk of the second support base 50 rotating along one slide rail 51.

[0092] The first limiting block 52 and the second limiting block 53 can limit the sliding of the first supporting base 10 at two positions, thereby limiting the sliding range of the first supporting base 10 and reducing the risk of the first supporting base 10 slipping. Furthermore, in some embodiments, there are two first limiting blocks 52 and two second limiting blocks 53, and the two first limiting blocks 52 are spaced apart and arranged in parallel along the second direction, one of the first limiting blocks 52 and one of the second limiting blocks 53 are arranged opposite to each other along the first direction, and the other first limiting block 52 and the other second limiting block 53 are arranged opposite to each other along the first direction.

[0093] In some embodiments, along the first direction, the fixing device 1 has a front and a back; the first limit block 52 is arranged on the back of the first supporting base 10, and the second limit block 53 is arranged on the front of the first supporting base 10; a first spring 54 is arranged between the first limit block 52 and the first supporting base 10.

[0094] The front and back sides of the fixing device 1 are both outer surfaces of the fixing device 1, wherein the front side refers to the surface on one side of the two hollow poles 2100 of the battery cell preform 2000 exposed, which can also be understood as the surface facing the welding device or dust removal device when in use, and the back side is the surface opposite to the front side.

[0095] During use, the welding device or dust removal device moves relative to the battery cell preform 2000, so that the welding device or dust removal device is paired with the two hollow poles 2100 of the battery cell preform 2000, thereby driving the first spring 54 to compress and generate elastic potential energy, driving the second support base 50 to slide along the first direction, realizing the floating of the battery cell preform 2000 along the direction of the slide rail, and playing the role of determining the defocus amount; when the process is completed, the welding device or dust removal device is away from the battery cell preform 2000, and the first spring 54 releases the elastic potential energy, driving the second support base 50 to return to its original position for the next use. Therefore, the fixing device 1 provided in this application can be used repeatedly. Furthermore, in some embodiments, a second spring is provided between the second limit block 53 and the first support base 10.

[0096] In some embodiments, the fixing device 1 further includes a traction fixing member 60 , which is fixed to the second supporting base 50 . For example, the traction fixing member 60 is fixed to the top surface of the second supporting base 50 .

[0097] The traction fixture 60 is used to connect with the traction mechanism (not shown), so that the fixing device 1 can move along with the traction mechanism and then reach a predetermined workstation, such as a welding station and a dust removal station, so as to perform corresponding operations and improve the degree of automation.

[0098] In some embodiments, the traction fixing member 60 has a traction groove 61, which can extend from the bottom surface to the top surface of the traction fixing member 60. For example, the traction groove 61 is a notch on the edge of the traction fixing member 60, so that the traction member of the traction mechanism can be easily inserted and removed.

[0099] In some embodiments, the fixing device 1 may further include a first connecting mechanism 70 and a second connecting mechanism 80 , which are respectively fixed on the second supporting base 50 and disposed on opposite sides of the first supporting base 10 along the second direction.

[0100] Among them, the first connecting mechanism 70 is used to connect the second connecting mechanism 80 of the adjacent fixing device 1, and the second connecting mechanism 80 is used to connect the first connecting mechanism 70 of the adjacent fixing device 1, so that the two adjacent fixing devices 1 can be easily installed and fixed. Multiple fixing devices 1 provided in this application can be applied to large-scale production processes, and the installation and disassembly of the fixing device 1 can be facilitated by traction, making the battery production process more flexible.

[0101] In some embodiments, the first connecting mechanism 70 includes a first connecting arm 71 having a connecting groove 72 on its surface. The connecting groove 72 extends along a third direction and has a first end and a second end opposite each other in the third direction. Both the first end and the second end are open. The third direction is a vertical direction. The second connecting mechanism 80 includes a second connecting arm 81 and a roller 82. The roller 82 is disposed on the second connecting arm 81. The roller 82 is configured to enter the connecting groove 72 from the first end and slide out of the connecting groove 72 from the second end along the third direction.

[0102] The first connecting mechanism 70 is connected to the roller 82 of the adjacent second connecting mechanism 80 through a connecting groove 72 , wherein the connecting groove 72 extends along a third direction, which is a vertical direction, specifically, the Z direction in FIG. 1 .

[0103] Furthermore, the first connecting arm 71 and the second connecting arm 81 can both be rectangular structures or cylindrical structures, and both have a certain length, so that two adjacent fixing devices can have a certain distance when performing different treatments at different workstations, reducing mutual interference between the two processes.

[0104] The outer diameter of the roller 82 matches the width of the connecting groove 72, so that the roller 82 can slide in the connecting groove 72 along the third direction without being dislodged from the connecting groove 72 in the first direction or the second direction. The design of the roller 82 can reduce friction between the first connecting mechanism 70 and the second connecting mechanism 80 during installation.

[0105] In the above embodiment, the first connecting mechanism 70 includes a first connecting arm 71 having a connecting groove 72 on its surface, and the second connecting mechanism 80 includes a second connecting arm 81 and a roller 82, with the roller 82 being disposed on the second connecting arm 81. Furthermore, the roller 82 can enter the connecting groove 72 from the first end thereof and slide out of the connecting groove 72 from the second end thereof along a third direction. Two adjacent fixtures 1 can be installed by sliding, and the design of the roller 82 can reduce friction between the first and second connecting mechanisms 70 and 80 during installation, thereby improving safety and service life. See also FIG9 , which is a schematic structural diagram of a battery cell production system 1000 provided in some embodiments of the present application. The fixture 1 is raised by the second lifting assembly 8 and lowered by the first lifting assembly 7, so that the fixture 1 automatically disengages from the subsequent fixture 1 during the raising process and automatically connects to the preceding fixture 1 during the lowering process.

[0106] Please refer to Figures 10 to 12, where Figure 10 is a top view of the battery cell production system 1000 in Figure 9; Figure 11 is a top view of the battery cell production system 1000 provided in another embodiment of the present application; and Figure 12 is a partial structural schematic diagram of the traction wheel 62 and the traction mechanism 6 of the battery cell production system 1000 provided in some embodiments of the present application.

[0107] The present application provides a battery cell production system 1000 , wherein the battery cell production system 1000 includes the fixing device 1 provided in any one of the aforementioned embodiments.

[0108] The battery cell production system 1000 of the embodiment of the present application is used to produce any type of battery, such as power batteries or energy storage batteries. Application scenarios for power batteries include, but are not limited to, vehicles, ships, aircraft, spacecraft, power tools, electric toys, various mobile terminals, and the like. Application scenarios for energy storage batteries include, but are not limited to, solar power generation systems, hydropower generation systems, wind power generation systems, and the like.

[0109] In this embodiment, the battery cell production system 1000 includes the fixing device 1 provided by any of the aforementioned embodiments, and therefore has the technical effects of any of the aforementioned embodiments, one of which is: by setting the clamping assembly 30 to include a first clamping member 31 and a second clamping member 32 as well as a third clamping member 33 and a fourth clamping member 34, and the driving assembly 40 can drive the first clamping member 31 and the second clamping member 32 to move away from or approach each other along the first direction, and can drive the third clamping member 33 and the fourth clamping member 34 to move away from or approach each other along the second direction, the space of the fixing device for accommodating the battery cell preform 2000 can be adaptively adjusted in the horizontal direction according to the shape and / or size of the battery cell preform 2000.

[0110] For other technical effects, please refer to the aforementioned embodiments and will not be described in detail here.

[0111] In some embodiments, the battery cell production system 1000 further includes a first guide rail 2, a welding device 3, and a dust removal device 4. The first guide rail 2 extends along the second direction, and the welding device 3 and the dust removal device 4 are disposed on the same side of the first guide rail 2. The fixing device 1 is slidably disposed on the first guide rail 2 and is configured to pass through the welding device 3 and the dust removal device 4 in sequence.

[0112] The first guide rail 2 can guide the fixing device 1 to move along the second direction, so that the fixing device 1 reaches different workstations to perform corresponding processes, such as the welding workstation 100, the dust removal workstation 200, etc.

[0113] The welding device 3 is used to weld the hollow pole 2100 of the battery cell preform 2000 to the tab, and welding slag is generated during the welding process. The dust removal device 4 is used to clean the welding slag generated during the welding process, reduce the contamination of the battery cell preform 2000 by the welding slag, and improve the performance or service life of the produced battery. In the embodiment of the present application, the welding device 3 and the dust removal device 4 are arranged on the same side of the first guide rail 2. Therefore, during the battery production process, the welding operation and the dust removal operation can be performed on the same side. Furthermore, after the welding process is completed, the dust removal process can be directly entered, making the battery production process simple and efficient.

[0114] In this embodiment, the battery cell production system 1000 includes a first guide rail 2, a welding device 3 and a dust removal device 4; the first guide rail 2 extends along the second direction, and the welding device 3 and the dust removal device 4 are arranged on the same side of the first guide rail 2; the fixing device 1 is slidably set on the first guide rail 2 and is configured to pass through the welding device 3 and the dust removal device 4 in sequence. The battery cell preform 2000 can be involved in different processes through a fixing device 1, thereby improving production efficiency.

[0115] Please refer to Figures 11-12. In some embodiments, the fixing device 1 is any fixing device 1 mentioned above with a traction fixture 60; the battery monomer production system 1000 also includes a second guide rail 5 and a traction mechanism 6, and the second guide rail 5 is arranged parallel to the first guide rail 2 along the side away from the welding device 3; the traction mechanism 6 is slidably arranged on the second guide rail 5, and the traction mechanism 6 is configured to pull the fixing device 1 to move along the second direction through the traction fixture 60.

[0116] The second guide rail 5 is used to guide the fixing device 1 to move along the second direction, so that the fixing device 1 can enter the next process after completing the welding and dust removal processes.

[0117] Please also refer to Figure 12. The traction mechanism 6 is connected to the traction fixture 60 of the fixture 1, and is used to enable the migration fixture 1 to move with the traction mechanism 6, and then reach the predetermined workstation to perform corresponding operations, thereby improving the degree of automation. In some embodiments, the traction mechanism 6 includes a traction wheel 62, which can be set in the traction groove 61 of the fixture 1. The traction wheel 62 can slide, thereby reducing friction. Specifically, in some embodiments, the traction groove 61 has a third end and a fourth end relative to each other in the third direction, and both the third end and the fourth end are open ends. The third direction is a vertical direction. The traction wheel 62 is configured to be able to enter the traction groove 61 from the third end of the traction groove 61 and slide out of the traction groove 61 from the fourth end of the traction groove 61 along the third direction.

[0118] Furthermore, in this embodiment, the traction groove 61 is provided to facilitate the insertion and removal of the traction wheel 62 of the traction mechanism 6 .

[0119] Furthermore, in some embodiments, a plurality of fixing devices 1 are arranged side by side on the first guide rail 2 and are connected to each other; when one of the two adjacent fixing devices 1 reaches the workstation (welding station 100) where the welding device 3 is located, the other reaches the workstation (dust removal station 200) where the dust removal device 4 is located; the traction mechanism 6 drives the plurality of fixing devices 1 to move together along the second direction by pulling the leading fixing device 1.

[0120] In this embodiment, by providing a first connecting mechanism 70 and a second connecting mechanism 80 on opposite sides of the first supporting base 10, it is possible to facilitate the connection and disconnection of two adjacent fixing devices 1, and multiple fixing devices 1 provided by the present application can be applied to large-scale production processes. Moreover, the connection and disconnection of the fixing devices 1 by traction make the battery production process more flexible; the first connecting mechanism 70 includes a first connecting arm 71, the surface of the first connecting arm 71 has a connecting groove 72, and the second connecting mechanism 80 includes a second connecting arm 81 and a roller 82, and the roller 82 is provided on the second connecting arm 81; and the roller 82 can It is possible to enter the connecting groove 72 from the first end of the connecting groove 72 and slide out of the connecting groove 72 from the second end of the connecting groove 72 along the third direction, and the two adjacent fixing devices 1 can be installed by sliding, and the design of the roller 82 can reduce the friction between the first connecting mechanism 70 and the second connecting mechanism 80 during the installation process, thereby improving safety performance and service life; by having one of the two adjacent fixing devices 1 reach the station where the welding device 3 is located while the other reaches the station where the dust removal device 4 is located, it is possible to clean the welding slag immediately after welding the battery cell preform 2000 in the fixing device 1, thereby improving production efficiency.

[0121] In some embodiments, the battery cell production system 1000 further includes a first lifting assembly 7, a second lifting assembly 8, and a conveying mechanism 9; the first lifting assembly 7 is disposed at the first end of the first guide rail 2, the second lifting assembly 8 is disposed at the second end of the first guide rail 2, and the conveying mechanism 9 is disposed above the first guide rail 2; the traction mechanism 6 pulls the fixture 1 from the first end of the first guide rail 2 to the second end of the first guide rail 2; the second lifting assembly 8 lifts the fixture 1 moved to the second end of the first guide rail 2; the conveying mechanism 9 transports the lifted fixture 1 from above the second end of the first guide rail 2 to above the first end of the first guide rail 2; the first lifting assembly 7 lowers the fixture 1 transported to above the first end of the first guide rail 2 to the first end of the first guide rail 2; wherein, when the second lifting assembly 8 lifts the fixture 1 moved to the second end of the first guide rail 2, the lifted fixture 1 automatically detaches from the subsequent fixture 1; and when the first lifting assembly 7 lowers the fixture 1 transported to above the first end of the first guide rail 2 to the first end of the first guide rail 2, the lowered fixture 1 automatically connects to the previous fixture 1.

[0122] The first lifting assembly 7 refers to a mechanical device or apparatus of a platform or semi-enclosed platform that lowers the fixing device 1 along a predetermined track in the third direction, and the second lifting assembly 8 refers to a mechanical device or apparatus of a platform or semi-enclosed platform that raises the fixing device 1 along a predetermined track in the third direction. In some embodiments, the first lifting assembly 7 may include a walking mechanism, a hydraulic mechanism, an electric control mechanism, and a supporting mechanism. The hydraulic oil is formed into a certain pressure by a vane pump, and enters the lower end of the hydraulic cylinder through an oil filter, an explosion-proof electromagnetic reversing valve, a throttle valve, a hydraulically controlled one-way valve, and a balancing valve, so that the piston of the hydraulic cylinder moves upward to lift the heavy object. The return oil from the upper end of the hydraulic cylinder returns to the oil tank through the explosion-proof electromagnetic reversing valve. Its rated pressure is adjusted by a relief valve, and the pressure gauge reading is observed by a pressure gauge. The structure of the second lifting assembly 8 is similar to that of the first lifting assembly 7. For details, please refer to the first lifting assembly 7 and will not be repeated here.

[0123] The transmission mechanism 9 refers to a device or equipment that moves the fixing device 1 from one position to another, and can be achieved, for example, by a conveyor belt or a traction device.

[0124] In this embodiment, by providing a battery cell production system 1000 including a first lifting assembly 7, a second lifting assembly 8 and a transmission mechanism 9, it is possible to replace the battery cell preforms 2000 that have been welded and dusted with the battery cell preforms 2000 that need to be welded and dusted in the process, thereby reducing the number of interruptions required in the entire battery production process.

[0125] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interface, device or unit, which can be electrical, mechanical or other forms.

[0126] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0127] The above description is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A fixing device for fixing a battery cell prefabricated part; comprising: a first supporting substrate; A carrier, disposed on top of the first supporting base; A clamping assembly, disposed on the first supporting base; The clamping assembly comprises: A first clamping member and a second clamping member are disposed on opposite sides of the carrier along a first direction; A third clamping member and a fourth clamping member are arranged on opposite sides of the bearing member along a second direction; the second direction intersects with the first direction and is substantially parallel to the horizontal direction; A driving component is disposed on the first supporting base and connected to the clamping component; the driving component is configured to be able to drive the first clamping member and the second clamping member to move away from or closer to each other along the first direction, and to be able to drive the third clamping member and the fourth clamping member to move away from or closer to each other along the second direction.

2. The fixing device according to claim 1, wherein: The drive assembly comprises: an opening mechanism connected to the clamping assembly; the opening mechanism is configured to drive the first clamping member and the second clamping member away from each other along the first direction, and to drive the third clamping member and the fourth clamping member away from each other along the second direction; An elastic mechanism is connected to the clamping assembly; the elastic mechanism is configured to be able to drive the first clamping member and the second clamping member to approach each other along the first direction, and to drive the third clamping member and the fourth clamping member to approach each other along the second direction.

3. The fixing device according to claim 2, wherein: The clamp opening mechanism comprises: A pressing block, arranged on the same side of the bearing member as the first clamping member; A connecting rod mechanism, connected to the pressing block, the second clamping member, the third clamping member and the fourth clamping member respectively; When an external force presses the pressing block along the first direction, the connecting rod mechanism drives the second clamping member away from the first clamping member, and drives the third clamping member and the fourth clamping member away from each other along the second direction, and drives the elastic mechanism to generate elastic potential energy at the same time; When the external force pressing the pressing block disappears, the elastic mechanism releases elastic potential energy, drives the second clamping member to approach the first clamping member, drives the third clamping member and the fourth clamping member to approach each other along the second direction, and drives the pressing block to reset through the connecting rod mechanism.

4. The fixing device according to claim 2 or 3, wherein: The fixing device also includes: A second supporting base, disposed at the bottom of the first supporting base; The first supporting base is configured to be able to slide relative to the second supporting base along the first direction.

5. The fixing device according to claim 4, wherein: The second supporting base is provided with a slide rail, a first limit block, and a second limit block; the first supporting base is slidably arranged on the slide rail; the first limit block and the second limit block are configured to limit the range of sliding of the first supporting base relative to the second supporting base along the first direction.

6. The fixing device according to claim 5, wherein: Along the first direction, the fixing device has a front side and a back side; the first limit block is arranged on the back side of the first supporting base, and the second limit block is arranged on the front side of the first supporting base; a first spring is arranged between the first limit block and the first supporting base.

7. The fixing device according to claim 4, wherein: The fixing device also includes: The traction fixing member is fixed on the second supporting base.

8. The fixing device according to claim 7, wherein: The traction fixing member has a traction groove.

9. The fixing device according to claim 8, wherein: The fixing device also includes: The first connecting mechanism and the second connecting mechanism are fixed on the second supporting base and are arranged on two opposite sides of the first supporting base along the second direction.

10. The fixing device according to claim 9, wherein: The first connecting mechanism comprises a first connecting arm, a surface of the first connecting arm having a connecting groove; the connecting groove extends along a third direction, the connecting groove has a first end and a second end opposite to each other in the third direction, the first end and the second end are both open ends, and the third direction is a vertical direction; The second connecting mechanism includes a second connecting arm and a roller, wherein the roller is disposed on the second connecting arm; wherein the roller is configured to be able to enter the connecting groove from the first end of the connecting groove along the third direction and slide out of the connecting groove from the second end of the connecting groove.

11. A battery monomer production system, wherein: Comprising a fixing device according to any one of claims 1-10.

12. The battery monomer production system according to claim 11, wherein: The battery monomer production system also includes a first guide rail, a welding device and a dust removal device; the first guide rail extends along the second direction, and the welding device and the dust removal device are arranged on the same side of the first guide rail; the fixing device is slidably arranged on the first guide rail and is configured to pass through the welding device and the dust removal device in sequence.

13. The battery monomer production system according to claim 12, wherein: The fixing device is a fixing device according to any one of claims 7 to 10; the battery monomer production system also includes a second guide rail and a traction mechanism, the second guide rail is arranged parallel to the first guide rail along the side away from the welding device; the traction mechanism is slidably arranged on the second guide rail, and the traction mechanism is configured to pull the fixing device to move along the second direction through the traction fixture.

14. The battery monomer production system according to claim 13, wherein: The fixing device is a fixing device according to claim 9 or 10; a plurality of the fixing devices are arranged side by side on the first guide rail and are connected to each other; when one of two adjacent fixing devices reaches the workstation where the welding device is located, the other reaches the workstation where the dust removal device is located; the traction mechanism drives the plurality of fixing devices to move together along the second direction by traction of the leading fixing device.

15. The battery monomer production system according to claim 14, wherein: The fixing device is the fixing device according to claim 10; the battery monomer production system further comprises a first lifting assembly, a second lifting assembly and a transmission mechanism; the first lifting assembly is arranged at the first end of the first guide rail, the second lifting assembly is arranged at the second end of the first guide rail, and the transmission mechanism is arranged above the first guide rail; the traction mechanism pulls the fixing device to move from the first end of the first guide rail to the second end of the first guide rail; the second lifting assembly raises the fixing device moved to the second end of the first guide rail; the transmission mechanism transports the raised fixing device from above the second end of the first guide rail to above the first end of the first guide rail; the first lifting assembly lowers the fixing device transported to above the first end of the first guide rail to the first end of the first guide rail; In which, during the process in which the second lifting assembly moves the fixing device at the second end of the first guide rail to lift up, the lifted fixing device automatically detaches from the next fixing device; during the process in which the first lifting assembly transports the fixing device above the first end of the first guide rail to lower to the first end of the first guide rail, the lowered fixing device automatically connects with the previous fixing device.

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