Splicing device and splicing system

Abstract

The utility model discloses a splicing device and a splicing system.The splicing device comprises a clamping assembly and a welding mechanism, the clamping assembly comprises a supporting body and a press-fit body opposite to the supporting body, and a clamping space is formed between the supporting body and the press-fit body and used for clamping a plurality of to-be-connected pieces which are partially arranged in a stacked mode; the welding mechanism is located on any side of the clamping assembly. At least one of the support body and the press-fit body is provided with at least one through opening along the stacking direction of the plurality of pieces to be connected. According to the welding device, the to-be-connected piece is fixed through the clamping assembly, meanwhile, the opening corresponding to the welding area on the to-be-connected piece is formed in at least one of the supporting body and the pressing body, the welding part of the welding mechanism penetrates through the opening to weld the to-be-connected piece, and therefore automatic welding operation of the to-be-connected piece can be achieved; the welding efficiency is improved, the labor cost is reduced, the alignment accuracy of the welding part and the welding area of the to-be-connected piece can be improved, and the welding effect is improved.

Description

Technical Field

[0001] This application belongs to the field of battery manufacturing technology, specifically relating to a bonding device and bonding system. Background Technology

[0002] In recent years, with the booming development of the electric vehicle industry, lithium batteries, as its core power source, have faced higher performance requirements. The energy density of lithium batteries is crucial to their performance. In the coating process, the energy density is increased by continuously reducing the thickness of the foil; however, this can easily lead to foil breakage during the coating process.

[0003] In related technologies, after the foil breaks, the broken foil is manually re-bonded. However, this manual re-bonding method has poor re-bonding effect and can easily affect the performance of the battery. Utility Model Content

[0004] This application aims to provide a splicing device and splicing system that can solve the problem of poor results in manual splicing in related technologies.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] In a first aspect, embodiments of this application provide a splicing device, comprising: a clamping assembly, the clamping assembly including a support body and a pressing body disposed opposite to the support body, wherein a clamping space is formed between the support body and the pressing body for clamping multiple parts stacked together to be connected;

[0007] A welding mechanism, located on either side of the clamping assembly, is used to weld the stacked areas of the plurality of the parts to be connected;

[0008] At least one of the support body and the pressing body has at least one through opening along the direction of the stacking of the plurality of the components to be connected. The opening is used to face the stacked area of ​​the plurality of the components to be connected so that the welding part of the welding mechanism is placed in contact with the opening and welds the components to be connected.

[0009] Optionally, the pressed body includes a first plate, and the support body includes a second plate, wherein the first plate and the second plate are disposed opposite to each other along a first direction;

[0010] The clamping space is formed between the first plate and the second plate, and at least one of the first plate and the second plate can move along the first direction to adjust the size of the clamping space;

[0011] The welding mechanism is located on the side of the first plate away from the second plate, and / or the welding mechanism is located on the side of the second plate away from the first plate; the welding mechanism can move toward the clamping space to weld the plurality of the components to be connected.

[0012] Optionally, at least one of the first plate and the second plate has a through opening along the first direction, the opening being adapted to correspond to the stacked areas of the plurality of the components to be connected;

[0013] The welding mechanism is provided with a welding part, which can move toward the opening to contact the parts to be connected and weld multiple parts to be connected.

[0014] Alternatively, at least one of the first plate and the second plate has at least two through openings along the first direction, and the at least two openings are spaced apart along the second direction. The welding mechanism has at least two welding parts, each of which is used to move toward each opening to contact and weld the part to be connected. The second direction is perpendicular to the first direction.

[0015] Optionally, the welding mechanism is located on the side of the support body away from the press-fit body; or, the welding mechanism is located on the side of the press-fit body away from the support body.

[0016] The welding mechanism includes a movable component and a welding head connected to the movable component. The movable component drives the welding head to move toward the clamping assembly to weld multiple components to be connected.

[0017] The welding head includes a welding roller, which is rotatably connected to the moving part.

[0018] Optionally, the moving component includes a first moving module, which is disposed opposite to the clamping assembly. The welding head is connected to the first moving module, and the first moving module is used to drive the welding head to move along a first direction so that the welding head contacts the plurality of components to be connected.

[0019] The movable component further includes a second movable module connected to the first movable module. The welding head is connected to the end of the second movable module opposite to the first movable module. The second movable module is used to drive the first movable module to move along a third direction to weld multiple components to be connected via the welding head. The third direction is perpendicular to the first and second directions. The welding head further includes a connector, one end of which is connected to the second movable module. The welding roller is rotatably connected to the end of the connector opposite to the second movable module.

[0020] Optionally, the bonding device further includes a dust removal device, which is located on the side of the clamping assembly facing the welding mechanism. The dust removal device includes a dust removal device body and a dust removal component connected to the dust removal device body. The dust removal component has a dust suction port. The welding mechanism has a welding head. The dust suction port is located close to the welding head. The dust removal device body is used to provide negative pressure to the dust suction port.

[0021] Optionally, along the direction in which the plurality of the components to be connected are stacked, at least one through opening is formed in the support and / or the press-fit body;

[0022] The welding mechanism includes a movable component and a welding head connected to the movable component, the movable component driving the welding head to move toward the clamping assembly; the dust removal component is disposed on the welding head.

[0023] Optionally, the dust removal component has an inclined surface at one end near the welding head, the inclined surface being set at an acute angle to the through direction of the opening, and the dust suction port being located in the inclined surface.

[0024] Optionally, the bonding device further includes a driving mechanism connected to the support body for driving the support body closer to or away from the pressing body; or, the driving mechanism is connected to the pressing body for driving the pressing body closer to or away from the support body.

[0025] And / or, the joining device further includes at least two rollers, which are respectively disposed on both sides of the clamping assembly, and the rollers are used to transport the workpiece to be joined through the clamping space.

[0026] Secondly, embodiments of this application propose a bonding system, including components to be bonded and a bonding device as described in any of the above claims, wherein the bonding device is used to weld multiple components to be bonded.

[0027] The component to be connected includes a foil, and the surface of the foil is not provided with an active material layer;

[0028] Alternatively, the surface of the foil is provided with an active material layer, and an auxiliary connecting layer is provided between two adjacent foils.

[0029] In this embodiment, by setting a clamping assembly and a welding mechanism, with the welding mechanism positioned on either side of the clamping assembly, the clamping assembly is used to fix the parts to be connected, preventing them from moving. Simultaneously, a through opening is provided on at least one of the support body and the pressing body, corresponding to the welding area on the parts to be connected. This allows the welding part of the welding mechanism to pass through the opening and contact the welding area of ​​the parts to be connected for welding. This not only enables automated welding of the parts to be connected, improving welding efficiency and reducing labor costs, but also improves the alignment accuracy between the welding part and the welding area of ​​the parts to be connected, thereby enhancing the welding effect.

[0030] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0031] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0032] Figure 1 This is one of the structural schematic diagrams of the splicing device according to an embodiment of this application;

[0033] Figure 2 This is a second schematic diagram of the structure of the splicing device according to an embodiment of this application;

[0034] Figure 3 This is one of the side views of the splicing device according to an embodiment of this application;

[0035] Figure 4 This is a second side view of the splicing device according to an embodiment of this application;

[0036] Figure 5 This is a partial structural schematic diagram of the splicing device according to an embodiment of this application;

[0037] Figure 6 This is a schematic diagram of the structure of a dust removal component according to an embodiment of this application;

[0038] Figure 7 This is a partial structural schematic diagram of the welding mechanism according to an embodiment of this application.

[0039] Figure label:

[0040] 10: Clamping assembly; 11: First plate; 12: Second plate; 21: Opening; 30: Part to be connected; 40: Welding mechanism; 41: Moving part; 42: First moving module; 43: Second moving module; 44: Welding head; 441: Connector; 442: Welding roller; 50: Dust removal part; 51: Dust suction port; 60: Roller; 70: Drive mechanism; X: First direction; Y: Second direction; Z: Third direction. Detailed Implementation

[0041] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0042] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0043] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0044] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0045] The following description, in conjunction with the accompanying drawings, details a splicing device and splicing system provided in this application through specific embodiments and application scenarios.

[0046] like Figures 1-3 As shown in the embodiment of this application, a splicing device is proposed, including: a clamping assembly 10 and a welding mechanism 40. The clamping assembly 10 includes a support body and a pressing body disposed opposite to the support body. A clamping space is formed between the support body and the pressing body for clamping and fixing multiple pieces 30 to be connected. The welding mechanism 40 is disposed on any side of the clamping assembly 10 for welding the multiple pieces 30 to be connected. At least one of the support body and the pressing body has at least one through opening 21 along the stacking direction of the multiple pieces 30 to be connected. The opening 21 is used to face the stacking area of ​​the multiple pieces 30 to be connected, so that the welding part of the welding mechanism 40 is placed in the opening 21 to contact and weld the pieces 30 to be connected.

[0047] In this embodiment, by setting a clamping assembly 10 and a welding mechanism 40, the welding mechanism 40 is set on any side of the clamping assembly 10. The clamping assembly 10 is used to fix the component to be connected 30 to prevent the component to be connected 30 from moving. At the same time, a through opening 21 is provided on at least one of the support body and the pressing body. The opening 21 corresponds to the welding area on the component to be connected 30 (the welding area is located in the stacked area of ​​multiple components to be connected 30), so that the welding part of the welding mechanism 40 can pass through the opening 21 to contact the welding area of ​​the component to be connected 30 for welding. This not only realizes the automatic welding operation of the component to be connected 30, improves welding efficiency, and reduces labor costs, but also improves the alignment accuracy between the welding part and the welding area of ​​the component to be connected 30, thereby improving the welding effect of the component to be connected 30.

[0048] Specifically, a through opening 21 can be provided on the support body along the stacking direction of the multiple components 30 to be connected; a through opening 21 can also be provided on the pressing body along the stacking direction of the multiple components 30 to be connected; or a through opening 21 can be provided on both the support body and the pressing body along the stacking direction of the multiple components 30 to be connected, in which case the opening 21 on the support body and the opening 21 on the pressing body are opposite each other along the stacking direction of the multiple components 30 to be connected, so as to be suitable for different working conditions. Of course, the specific setting method of the opening 21 can be flexibly selected according to the actual process requirements, and the embodiments of this application do not limit it. Among them, the stacking arrangement of multiple components 30 to be connected means that the multiple components 30 to be connected are stacked with each other and have overlapping areas.

[0049] It should be noted that the bonding device provided in this application embodiment can be applied in the battery manufacturing process for re-welding of foil materials after breakage during the coating process, i.e., the component to be bonded 30 is a foil material. Of course, the bonding device provided in this application embodiment can also be applied to other technical fields, and this embodiment does not limit it.

[0050] It should also be noted that "multiple" refers to two or more.

[0051] Understandably, in one embodiment, the support body can be composed of multiple plate-like structures, with a through opening 21 formed between adjacent plate-like structures to accommodate the welding portion of the welding mechanism 40, allowing the welding portion of the welding mechanism 40 located at the opening 21 to contact the workpiece 30 to be connected, thereby achieving welding of the workpiece 30. In another embodiment, the support body can be a single plate-like structure, with a portion cut away to form the through opening 21. The press-fit body can also form the through opening 21 using the method described in the above embodiments.

[0052] like Figure 1 As shown, in some embodiments, the clamping assembly 10 includes a support body and a pressing body disposed opposite to the support body, and a clamping space is formed between the support body and the pressing body to clamp multiple parts of the components to be connected 30 that are stacked together; that is, the partial areas of multiple components to be connected 30 are stacked together, which helps to increase the welding area. During welding, the stacked areas are welded to improve the welding strength.

[0053] Understandably, in one embodiment, the welding mechanism 40 is located on the side of the support body away from the pressing body, and is used to weld the stacked areas of multiple parts 30 to be connected. This allows space for the pressing body to avoid interfering with the pressing process of the parts 30 to be connected, and does not affect the working process of the pressing body. In another embodiment, the welding mechanism 40 is located on the side of the pressing body away from the support body, and is used to weld the stacked areas of multiple parts 30 to be connected. This not only saves space near the support body, but also provides convenience for the operator's operation.

[0054] In some embodiments, the support can be a support frame, support plate, or support base, etc., as long as it can provide support for the part to be connected 30. Of course, the specific type of support can be flexibly selected according to the actual process conditions, and this application embodiment does not limit it in this regard.

[0055] In other embodiments, the press-fitting body can be a press-fitting body composed of multiple plate-like structures, or it can be a single integrally formed press-fitting plate assembly, which can cooperate with the support body to achieve the pressing and fixing effect on the parts to be connected 30. Of course, the specific type of press-fitting body can be flexibly selected according to the actual process conditions, and the embodiments of this application do not limit it in this regard.

[0056] Understandably, in one embodiment, the support body can be composed of multiple plate-like structures, with a through opening 21 formed between adjacent plate-like structures to accommodate the welding portion of the welding mechanism 40, allowing the welding portion of the welding mechanism 40 located at the opening 21 to contact the workpiece 30 to be connected, thereby achieving welding of the workpiece 30. In another embodiment, the support body can be a single plate-like structure, with a portion cut away to form the through opening 21. The press-fit body can also form the through opening 21 using the method described in the above embodiments.

[0057] It should also be noted that the number of openings 21 provided on the support and / or the pressing body can be one or two. The specific number of openings 21 can be flexibly set according to actual needs, and this application embodiment does not limit it.

[0058] like Figure 1 As shown, in some embodiments, the pressing body includes a first plate 11, and the support body includes a second plate 12. The first plate 11 and the second plate 12 are disposed opposite to each other along a first direction X. A clamping space is formed between the first plate 11 and the second plate 12. At least one of the first plate 11 and the second plate 12 can move along the first direction X to adjust the size of the clamping space. A welding mechanism 40 is disposed on the side of the first plate 11 away from the second plate 12, and / or, the welding mechanism 40 is disposed on the side of the second plate 12 away from the first plate 11. The welding mechanism 40 can move toward the clamping space to weld a plurality of parts 30 to be connected.

[0059] In this embodiment, by setting the pressing body to include a first plate 11 and the support body to include a second plate 12, a clamping space is formed by the first plate 11 and the second plate 12 arranged opposite to each other along the first direction X. At least one of the first plate 11 and the second plate 12 can move along the first direction X to adjust the size of the clamping space. This not only allows for precise control of the size of the clamping space to accommodate the parts 30 to be connected with different thicknesses or sizes, but also results in a simple structural layout that is easy to install, disassemble and maintain.

[0060] like Figure 2 As shown, in some embodiments, at least one of the first plate 11 and the second plate 12 is provided with a through opening 21 along the first direction X. The opening 21 is adapted to correspond to the welding area on the component to be connected 30. The welding mechanism 40 is provided with a welding part, which can move toward the opening 21 to contact the component to be connected 30 and weld multiple components to be connected 30.

[0061] In this embodiment of the application, by providing a through opening 21 along the first direction X on at least one of the first plate 11 and the second plate 12, not only is the processing of the opening 21 facilitated, but the time required for the welding part to pass through the opening 21 and contact the part to be connected 30 is also saved, thereby improving the working efficiency of the connecting device.

[0062] like Figure 2 As shown, in some embodiments, at least one of the first plate 11 and the second plate 12 is provided with at least two through openings 21 along the first direction X, the at least two openings 21 are spaced apart along the second direction, the welding mechanism 40 is provided with at least two welding parts, each welding part is used to move toward each opening 21 to contact and weld with the part to be connected 30, and the second direction is perpendicular to the first direction X.

[0063] In this embodiment of the application, by providing at least two through openings 21 along a first direction X in at least one of the first plate 11 and the second plate 12, and by providing at least two through openings 21 spaced apart along a second direction, and by providing at least two welding parts in the welding mechanism 40, each welding part being used to move toward each opening 21 to contact and weld with the part to be connected 30, this arrangement enables multiple welding parts to act directly on different welding areas of the part to be connected 30 through the independently through openings 21, so as to complete the synchronous welding of different welding areas of multiple parts to be connected 30 at one time, thereby improving welding efficiency and welding strength.

[0064] Specifically, two through openings 21 can be provided on the second plate 12, with the two openings 21 spaced apart along the second direction. The welding mechanism 40 has two corresponding welding parts, each welding part corresponding to one opening 21. When welding is required on two parts 30 stacked along the first direction X, the two parts 30 have two joint positions, i.e., welding areas. Each welding area corresponds to one opening 21. The welding part passes through the opening 21 to weld the corresponding welding area, thus completing the joining operation.

[0065] like Figure 3 and Figure 4 As shown, in some embodiments, the welding mechanism 40 is located on the side of the support body away from the pressing body; or, the welding mechanism 40 is located on the side of the pressing body away from the support body; the welding mechanism 40 includes a movable member 41 and a welding head 44 connected to the movable member 41, the movable member 41 drives the welding head 44 to move toward the clamping assembly 10 for welding a plurality of parts 30 to be connected; the welding head 44 includes a welding roller 442, the welding roller 442 being rotatably connected to the movable member 41.

[0066] In this embodiment, the welding mechanism 40 is located on the side of the support body away from the pressing body, or on the side of the pressing body away from the support body. The moving part 41 in the welding mechanism 40 can drive the welding head 44 to move. This facilitates the moving part 41 driving the welding head 44 to approach the part to be connected 30 during welding. After welding, the moving part 41 drives the welding head 44 away from the part to be connected 30 to avoid interfering with the transmission process of the part to be connected 30. At the same time, the welding roller 442 is rotatably connected to the connecting part 441. In this way, the moving part 41 can drive the welding roller 442 to move along the third direction Z to perform rolling welding on the surface of the part to be connected 30. This dynamic rolling welding can achieve continuous and uniform weld formation, thereby improving the welding quality.

[0067] It should be noted that the welding roller 442 can be directly rotatably connected to the moving part 41, or the welding roller 442 can be rotatably connected to the moving part 41 through an intermediate adapter. That is, the moving part 41 can drive the welding roller 442 to move along the third direction Z. The specific connection method between the welding roller 442 and the moving part 41 can be flexibly set according to the actual process conditions. This application embodiment does not limit it.

[0068] like Figure 3 and Figure 4 As shown, in some embodiments, the movable component 41 includes a first movable module 42, which is disposed opposite to the clamping component 10. The welding head 44 is connected to the first movable module 42. The first movable module 42 is used to drive the welding head 44 to move along a first direction X so that the welding head 44 contacts a plurality of components 30 to be connected.

[0069] In some embodiments, the movable component 41 further includes a second movable module 43 connected to the first movable module 42, and a welding head 44 connected to one end of the second movable module 43 away from the first movable module 42. The second movable module 43 is used to drive the first movable module 42 to move along a third direction so as to weld a plurality of components 30 to be connected through the welding head 44. The third direction Z is perpendicular to the first direction X and the second direction.

[0070] In some embodiments, the welding head 44 further includes a connector 441, one end of which is connected to the second moving module 43, and the welding roller 442 is rotatably connected to the end of the connector 441 that is away from the second moving module 43.

[0071] In this embodiment, a first moving module 42 is set to drive the welding head 44 to move along the first direction X to approach the part to be connected 30; the length of the part to be connected 30 along the third direction Z is the width of the part to be connected 30; a second moving module 43 drives the welding roller 442 to move along the third direction Z so that the welding roller 442 can weld along the width of the part to be connected 30, thereby ensuring the integrity of the welding head 44 welding the part to be connected 30 and reducing the occurrence of edge warping of the part to be connected 30.

[0072] It should be noted that the first moving module 42 and the second moving module 43 can be cylinders, servo motors, or hydraulic cylinders, etc., as long as they can drive the welding head 44 to move. Of course, the specific types of the first moving module 42 and the second moving module 43 can be flexibly selected according to the actual process conditions, and this application embodiment does not limit them.

[0073] It should also be noted that the welding mechanism 40 can be an ultrasonic roller welding machine. The high-frequency ultrasonic vibration generated by the ultrasonic roller welding machine generates frictional heat with the contact surface of the part to be connected 30. This not only enables the welding of the part to be connected 30, but also generates less heat, which can reduce damage to the part to be connected 30.

[0074] like Figure 3 As shown, in some embodiments, the bonding device further includes a dust removal device, which is located on the side of the clamping assembly 10 facing the welding mechanism 40. The dust removal device includes a dust removal device body and a dust removal component 50 connected to the dust removal device body. The dust removal component 50 is provided with a dust suction port 51. The welding mechanism 40 is provided with a welding head 44. The dust suction port 51 is located close to the welding head 44. The dust removal device body is used to provide negative pressure to the dust suction port 51.

[0075] In this embodiment, by providing a suction port 51 in the dust removal component 50, and placing the suction port 51 close to the welding head 44, and by using the main body of the dust removal device to provide negative pressure to the suction port 51, the negative pressure at the suction port 51 can remove welding slag, metal powder, or environmental impurities generated during the welding process of the component to be connected 30, thereby reducing the adhesion of these contaminants to the surface of the component to be connected 30, which would affect the cleanliness of the surface of the component to be connected 30 and thus affect the subsequent battery quality. In addition, since the dust removal component 50 and the main body of the dust removal device are set separately, it is convenient to disassemble, clean, and install the dust removal component 50.

[0076] The main body of the dust removal device may include an air compressor, a vacuum device, or a fan, used to provide negative pressure to the dust suction port 51. Of course, the specific type of the main body of the dust removal device is not limited in this embodiment and can be flexibly set according to actual process requirements.

[0077] It should be noted that the dust removal device and welding mechanism 40 can be set on the side of the support body away from the press body. Since the welding slag or metal powder generated during the welding process moves towards the ground under the action of gravity, this layout structure can enable the dust removal device to remove more welding slag or metal powder, further improving the dust removal effect.

[0078] Alternatively, the dust removal device and welding mechanism 40 can be set on the side of the press body away from the support body, which can further save the installation space on the support body side and provide convenience for the operator.

[0079] Alternatively, a dust removal device and a welding mechanism 40 can be installed on both the side of the support body away from the pressing body and the side of the pressing body away from the support body. This dual-sided structure can achieve flexible switching between welding and dust removal operations. If the dust removal device or welding mechanism on one side fails, the dust removal device or welding mechanism on the other side can continue to work, thereby reducing the risk of production line downtime.

[0080] Of course, the arrangement of the dust removal device and the welding mechanism 40 can be flexibly selected according to the actual process conditions, and the embodiments of this application do not limit them.

[0081] In some embodiments, such as Figure 1 and Figure 7 As shown, along the direction of the stacking of multiple components 30 to be connected, at least one through opening 21 is formed in the support body and / or the pressing body; the welding mechanism 40 includes a moving member 41 and a welding head 44 connected to the moving member 41, the moving member 41 driving the welding head 44 to move toward the clamping assembly 10; a dust removal component 50 is provided on the welding head 44.

[0082] In this embodiment, by providing a dust removal component 50 on the connector 441 of the welding head 44, the second moving module 43 drives the connector 441 and the welding roller 442 to move along the third direction Z. When welding is performed on different positions of the connector 30, the dust removal component 50 can move synchronously with the movement of the connector 441, thereby removing the welding slag or metal powder generated by the welding roller 442 during welding in real time, thereby further improving the dust removal effect.

[0083] In other embodiments, such as Figure 1 , Figure 5 and Figure 6 As shown, the dust removal component 50 can be set on the side of the second plate 12 away from the first plate 11. In this way, the dust removal component 50 can simultaneously remove the welding slag or metal powder generated by the welding mechanism 40 when welding at the two openings 21 along the second direction Y. This not only improves the dust removal effect but also saves installation space.

[0084] In some embodiments, such as Figure 6and Figure 7 As shown, the dust removal component 50 has an inclined surface at one end near the welding head 44. The inclined surface is set at an acute angle to the through direction of the opening 21. The dust suction port 51 is located in the inclined surface, which enables the dust suction port 51 to remove more welding slag or metal powder, thereby improving the dust removal effect of the dust removal device.

[0085] Furthermore, the acute angle between the inclined surface and the through direction of the opening 21 can be set to be greater than or equal to 60° and less than 90°. This not only improves the dust removal effect of the dust removal device, but also saves the space occupied by the dust removal component 50.

[0086] For example, the acute angle between the inclined surface and the through direction of the opening 21 can be set to any value such as 60°, 70°, 80°, 89° or any range between two values.

[0087] like Figure 4 As shown, in some embodiments, the bonding device further includes a driving mechanism 70, which is connected to the support body and is used to drive the support body to move closer to or away from the pressing body; or, the driving mechanism 70 is connected to the pressing body and is used to drive the pressing body to move closer to or away from the support body.

[0088] In this embodiment, the drive mechanism 70 is connected to the support body so that the drive mechanism 70 can drive the support body to move closer to or away from the pressing body. This allows for precise adjustment of the movement path and speed of the support body, facilitating accurate clamping of the connector 30 and preventing damage to the connector 30 from the support body. Similarly, the drive mechanism 70 is connected to the pressing body so that the drive mechanism 70 can drive the pressing body to move closer to or away from the support body. This allows for precise adjustment of the movement path and speed of the pressing body, facilitating accurate clamping of the connector 30 and preventing damage to the connector 30 from the pressing body.

[0089] Specifically, the drive mechanism 70 can be connected to the pressing body to drive the pressing body closer to or away from the support body; the drive mechanism 70 can also be connected to the support body to drive the support body closer to or away from the pressing body. The specific connection method between the drive mechanism 70 and the pressing body or the support body can be flexibly set according to process requirements, and the embodiments of this application do not limit it.

[0090] It is understandable that the drive mechanism 70 can be a cylinder, which has the advantages of fast response speed and low maintenance cost, and can improve the splicing effect and production efficiency of the splicing device.

[0091] In addition, the drive mechanism 70 can also be a servo motor or a hydraulic cylinder, etc. The specific type of drive mechanism 70 can be flexibly selected according to actual process requirements, and this embodiment does not limit it.

[0092] like Figure 4 As shown, in some embodiments, the splicing device further includes at least two rollers 60, which are respectively disposed on both sides of the clamping assembly 10. The rollers 60 are used to transport the splice 30 to be connected through the clamping space.

[0093] In this embodiment of the application, by providing rollers 60 on both sides of the clamping assembly 10, the continuous rolling of the rollers 60 is used to transfer the workpiece 30 to be connected, so that the workpiece 30 to be connected passes through the clamping space, thereby realizing the automatic transfer of the workpiece 30 to be connected, thereby improving production efficiency.

[0094] In some embodiments, the distance between the roller 60 and the pressing body along the first direction X is 10mm-30mm. This ensures that a certain gap is maintained between the pressing body and the pressing body during the transmission of the component to be connected 30, thereby effectively preventing friction caused by contact between the pressing body and the component to be connected 30 during transmission, which could damage the component to be connected 30.

[0095] For example, the distance between the roller 60 and the pressing body along the first direction X can be set to any value such as 10mm, 15mm, 20mm, 25mm, 30mm, or any range between two values.

[0096] In some embodiments, this application also proposes a bonding system, including a component 30 to be bonded and a bonding device as described in any of the above embodiments. The bonding device is used to weld multiple components 30 to be bonded. The component 30 to be bonded includes foil, the surface of which is not provided with an active material layer. When welding multiple foils without an active material layer on their surface using a welding mechanism 40, the multiple foils can be directly stacked along a first direction X, meaning that there is at least a partial overlap between adjacent foils along the first direction X. Then, the overlapping portion is welded by the welding mechanism 40 in the bonding device.

[0097] In other embodiments, the surface of the foil is provided with an active material layer. When welding multiple foils with an active material layer on their surface using the welding mechanism 40, an auxiliary connecting layer needs to be provided between two adjacent foils beforehand. Then, the multiple foils with the auxiliary connecting layer are stacked along the first direction X, that is, the portions of two adjacent foils with the auxiliary connecting layer have at least a partial overlap area along the first direction X. The overlapping portion is then welded by the welding mechanism 40 in the bonding device.

[0098] For example, the auxiliary bonding layer can be an auxiliary film, which includes a polymer film. Specifically, a PET film can be disposed between two adjacent foils. It is understood that the auxiliary bonding layer can be disposed between the foils by coating (e.g., applying adhesive) or by pasting. This application embodiment does not limit the specific method of disposing of the auxiliary bonding layer.

[0099] It should also be noted that when the bonding device provided in this application embodiment is applied to the battery manufacturing process, the active material layer disposed on the foil surface can be a slurry formed by mixing active materials (such as lithium cobalt oxide, lithium iron phosphate, graphite, etc.), conductive agents (such as graphene), binders (such as polyvinylidene fluoride or sodium carboxymethyl cellulose), and solvents (such as N-methylpyrrolidone, deionized water). Of course, the bonding device provided in this application embodiment can also be applied to other technical fields, and this embodiment does not limit it.

[0100] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0101] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A splicing device, characterized in that, include: The clamping assembly (10) includes a support body and a pressing body disposed opposite to the support body, and a clamping space is formed between the support body and the pressing body for clamping multiple parts stacked together to be connected (30). A welding mechanism (40) is located on either side of the clamping assembly (10) and is used to weld the stacked areas of the plurality of the parts to be connected (30); At least one of the support body and the press body has at least one through opening (21) along the stacking direction of the plurality of the parts to be connected (30), the opening (21) being used to face the stacked area of ​​the plurality of the parts to be connected (30) so that the welding part of the welding mechanism (40) is placed in the opening (21) to contact and weld the parts to be connected (30).

2. The splicing device according to claim 1, characterized in that, The press body includes a first plate (11), and the support body includes a second plate (12). The first plate (11) and the second plate (12) are arranged opposite to each other along a first direction (X). The clamping space is formed between the first plate (11) and the second plate (12), and at least one of the first plate (11) and the second plate (12) can move along the first direction (X) to adjust the size of the clamping space; The welding mechanism (40) is located on the side of the first plate (11) away from the second plate (12), and / or the welding mechanism (40) is located on the side of the second plate (12) away from the first plate (11); the welding mechanism (40) can move toward the clamping space to weld the plurality of the parts to be connected (30).

3. The splicing device according to claim 2, characterized in that, At least one of the first plate (11) and the second plate (12) forms a through opening (21) along the first direction (X), the opening (21) being adapted to correspond to the stacked areas of the plurality of the members to be connected (30); The welding mechanism (40) is provided with a welding part, which can move toward the opening (21) to contact the parts to be connected (30) and weld multiple parts to be connected (30); Alternatively, at least one of the first plate (11) and the second plate (12) is provided with at least two through openings (21) along the first direction (X), and the at least two openings (21) are spaced apart along the second direction (Y). The welding mechanism (40) is provided with at least two welding parts, each of which is used to move toward each opening (21) to contact and weld with the part to be connected (30). The second direction (Y) is perpendicular to the first direction (X).

4. The splicing device according to any one of claims 1 to 3, characterized in that, The welding mechanism (40) is located on the side of the support body away from the press-fit body; or, the welding mechanism (40) is located on the side of the press-fit body away from the support body; The welding mechanism (40) includes a movable part (41) and a welding head (44) connected to the movable part (41). The movable part (41) drives the welding head (44) to move toward the clamping assembly (10) to weld a plurality of the parts to be connected (30). The welding head (44) includes a welding roller (442), which is rotatably connected to the moving part (41).

5. The splicing device according to claim 4, characterized in that, The movable component (41) includes a first movable module (42), which is disposed opposite to the clamping assembly (10). The welding head (44) is connected to the first movable module (42), and the first movable module (42) is used to drive the welding head (44) to move along a first direction (X) so that the welding head (44) contacts the plurality of the components to be connected (30). The movable component (41) further includes a second movable module (43), which is connected to the first movable module (42). The welding head (44) is connected to one end of the second movable module (43) away from the first movable module (42). The second movable module (43) is used to drive the first movable module (42) to move along a third direction (Z) so as to weld a plurality of the components to be connected (30) through the welding head (44). The third direction (Z) is perpendicular to the first direction (X) and the second direction (Y). The welding head (44) also includes a connector (441), one end of which is connected to the second moving module (43), and the welding roller (442) is rotatably connected to the end of the connector (441) away from the second moving module (43).

6. The splicing device according to any one of claims 1 to 3, characterized in that, The bonding device also includes a dust removal device, which is located on the side of the clamping assembly (10) facing the welding mechanism (40); The dust removal device includes a dust removal device body and a dust removal component (50) connected to the dust removal device body. The dust removal component (50) is provided with a dust suction port (51). The welding mechanism (40) is provided with a welding head (44). The dust suction port (51) is located close to the welding head (44). The dust removal device body is used to provide negative pressure to the dust suction port (51).

7. The splicing device according to claim 6, characterized in that, Along the direction of the stacking of the plurality of the components to be connected (30), at least one through opening (21) is formed in the support and / or the press-fit body. The welding mechanism (40) includes a movable part (41) and a welding head (44) connected to the movable part (41), the movable part (41) driving the welding head (44) to move toward the clamping assembly (10); the dust removal part (50) is disposed on the welding head (44).

8. The splicing device according to claim 6, characterized in that, The dust removal component (50) has an inclined surface at one end near the welding head (44), and the inclined surface is set at an acute angle to the through direction of the opening (21), and the dust suction port (51) is located in the inclined surface.

9. The splicing device according to any one of claims 1 to 3, characterized in that, The bonding device further includes a driving mechanism (70), which is connected to the support body and is used to drive the support body to move closer to or away from the pressing body; or, the driving mechanism (70) is connected to the pressing body and is used to drive the pressing body to move closer to or away from the support body. And / or, the splicing device further includes at least two rollers (60), the at least two rollers (60) being disposed on both sides of the clamping assembly (10), the rollers (60) being used to transport the piece to be connected (30) through the clamping space.

10. A splicing system, characterized in that, Includes the components to be connected (30) and the bonding device as described in any one of claims 1 to 9, the bonding device being used to weld a plurality of the components to be connected (30); The component to be connected (30) includes a foil, the surface of which is not provided with an active material layer; Alternatively, the surface of the foil is provided with an active material layer, and an auxiliary connecting layer is provided between two adjacent foils.

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