Battery cover plate riveting device

Abstract

The application discloses a battery cover plate riveting device, which comprises an upper die mechanism, a positioning insert is arranged on the upper die mechanism, the positioning insert is provided with a profiling positioning part, and the positioning insert is used for being pressed on a battery cover plate and positioning two adapter plates of the battery cover plate when the battery cover plate is riveted; and a lower die mechanism is arranged opposite to the upper die mechanism and cooperates with the upper die mechanism. When the battery cover plate is riveted, the adapter plates of the battery cover plate are positioned and limited by the positioning insert, so that the adapter plates are effectively prevented from rotating around the cylindrical end of the pole column in the riveting process, and the consistency of the rotation angles of the adapter plates of the battery cover plates in the same batch during the riveting process can be ensured.

Description

Technical Field

[0001] This application relates to the technical field of power battery production, and more specifically, to a battery cover riveting device. Background Technology

[0002] Benefiting from the global trend of energy conservation and emission reduction and the rapid development of new energy vehicles, the market demand for power batteries has also grown rapidly. The power battery cover is part of the power battery casing assembly, and it plays a crucial role in ensuring the safety of the power battery cells during use.

[0003] like Figure 1 and Figure 2 As shown, the battery cover of the power battery includes, from top to bottom, a terminal post 31, a plastic sheath 32, a sealing ring 33, a top cover plate 34, a cover plastic 35, and an adapter plate 36. During the production process of the battery cover, the battery cover needs to be riveted using a corresponding riveting device. The cylindrical end of the terminal post 31 passes through the plastic sheath 32, the sealing ring 33, the top cover plate 34, the cover plastic 35, and the adapter plate 36 in sequence, and is riveted and fixed to the adapter plate 36. Since the cylindrical end of the terminal post 31 is matched with the circular hole on the adapter plate 36, the terminal post 31 expands under force during the riveting process, which may cause the adapter plate 36 to rotate around the cylindrical end of the terminal post 31. For the riveting process of the same batch of battery covers, this phenomenon will cause the rotation angle of the adapter plate 36 of the same batch of battery covers to be inconsistent, resulting in poor consistency of the rotation angle of the adapter plate 36. Utility Model Content

[0004] The purpose of this application is to provide a battery cover riveting device that, when riveting a battery cover, positions and limits the adapter plate of the battery cover by means of a positioning insert, effectively preventing the adapter plate from rotating around the cylindrical end of the terminal post during the riveting process, thereby ensuring the consistency of the rotation angle of the adapter plate during the riveting process of battery covers of the same batch.

[0005] To achieve the above objectives, this application provides a battery cover riveting device, comprising:

[0006] The upper mold mechanism is provided with a positioning insert, which has a contour positioning part. The positioning insert is used to press on the battery cover and position the two adapter plates of the battery cover when riveting the battery cover.

[0007] The lower mold mechanism is disposed opposite to the upper mold mechanism and cooperates with the upper mold mechanism.

[0008] In the implementation of the above technical solution, the battery cover riveting device can be used to rivet the battery cover of the power battery. When riveting the battery cover, the assembled battery cover can be placed on the lower mold mechanism, and the upper mold mechanism moves downward to rivet the battery cover. During the process of the upper mold mechanism moving downward to rivet the battery cover, the positioning insert presses on the battery cover and positions and limits the two adapter plates of the battery cover. The contour positioning part cooperates with the two adapter plates. In this way, the adapter plates can be effectively prevented from rotating around the cylindrical end of the pole during the riveting process. For the riveting processing of the same batch of battery covers, the adapter plates of the same batch of battery covers can be prevented from rotating during the riveting process, thereby ensuring the consistency of the rotation angle of the adapter plates during the riveting process of the same batch of battery covers.

[0009] In a preferred embodiment of this application, the positioning insert includes a first positioning insert, the first positioning insert having a first side plate and a first bottom plate connected to each other, the first side plate and the first bottom plate forming the contour positioning part.

[0010] In the implementation of the above technical solution, the structure of this first positioning insert can better match the structure of the two adapter plates of the battery cover, and better cooperate with the two adapter plates of the battery cover through the contour positioning part formed by the first positioning insert.

[0011] In a preferred embodiment of this application, an inwardly transitioning first guide surface is formed at the connection position between the first side plate and the first bottom plate.

[0012] In the implementation of the above technical solution, the first guide surface provided at the connection position of the first side plate and the first bottom plate of the first positioning insert can guide the first positioning insert when the upper mold mechanism moves downward to rivet the battery cover, so that it can be smoothly and smoothly pressed onto the battery cover and the two adapter plates, avoiding damage to the two adapter plates of the battery cover.

[0013] In a preferred embodiment of this application, the positioning insert further includes a second positioning insert disposed on the first base plate. The second positioning insert is used to position the battery cover between the two adapter plates during the riveting of the battery cover.

[0014] In the implementation of the above technical solution, the second positioning insert can be placed between the two transition plates of the battery cover when the upper mold mechanism moves downward to rivet the battery cover, so as to perform secondary positioning and limiting of the two transition plates of the battery cover. It works together with the first positioning insert to position and limit the two transition plates of the battery cover. This can better prevent the transition plates from rotating around the cylindrical end of the pole during the riveting process.

[0015] In a preferred embodiment of this application, the second positioning insert has a second side plate and a second bottom plate connected to each other, and the second side plate and the second bottom plate are used to be positioned together between the two adapter plates of the battery cover.

[0016] In the implementation of the above technical solution, the structure of this second positioning insert can better match the position between the two adapter plates of the battery cover, so that the second positioning insert can be better stabilized between the two adapter plates of the battery cover, ensuring the effect of secondary positioning and limiting of the two adapter plates of the battery cover.

[0017] In a preferred embodiment of this application, an inwardly transitioning second guide surface is formed at the connection position between the second side plate and the second bottom plate.

[0018] In the implementation of the above technical solution, the second guide surface set at the connection position between the second side plate and the second bottom plate of the second positioning insert can guide the second positioning insert when the upper mold mechanism moves downward to rivet the battery cover, so that it can smoothly and easily enter the position between the two adapter plates of the battery cover, avoiding damage to the two adapter plates of the battery cover.

[0019] In a preferred embodiment of this application, the upper mold mechanism includes an upper mold base, an upper pad, an upper clamping plate, an upper pressure back plate, and an upper pressure plate arranged sequentially from top to bottom;

[0020] The upper mold mechanism also includes a riveting punch, which is disposed at the bottom of the upper pad and passes through the upper clamping plate, the upper pressure back plate and the upper pressure plate;

[0021] The positioning insert is disposed at the bottom of the upper pressure back plate and embedded in the upper pressure plate; the positioning insert is provided with a punch through hole that matches the riveting punch.

[0022] In the implementation of the above technical solution, the upper mold mechanism with this structure can achieve a better riveting effect on the battery cover and improve the riveting quality of the battery cover.

[0023] In a preferred embodiment of this application, the lower mold mechanism includes a lower mold plate and a lower mold base arranged sequentially from top to bottom.

[0024] In the implementation of the above technical solution, the structure of the lower mold mechanism is relatively simple and not complicated, which can simplify the overall structure of the battery cover riveting device, reduce the cost of the battery cover riveting device, and facilitate subsequent maintenance.

[0025] In a preferred embodiment of this application, the lower template is provided with a plurality of positioning blocks, which are used to position the battery cover.

[0026] In the implementation of the above technical solution, multiple positioning blocks can be used to position and limit the battery cover plate placed on the lower template, which can facilitate the accurate placement of the assembled battery cover plate and prevent the battery cover plate from shifting during the riveting process, thus helping to improve the riveting efficiency and quality of the battery cover plate.

[0027] In a preferred embodiment of this application, the lower template is provided with a liquid injection hole positioning pin, which is used to insert into the liquid injection hole on the battery cover to position the battery cover.

[0028] In the implementation of the above technical solution, the injection hole positioning pin can be used to position the battery cover plate placed on the lower template, which can facilitate the accurate placement of the assembled battery cover plate and help improve the riveting efficiency and riveting quality of the battery cover plate.

[0029] This application discloses a battery cover riveting device, which, compared with the prior art, has at least the following advantages:

[0030] The battery cover riveting device of this application includes an upper mold mechanism and a lower mold mechanism that are arranged opposite to each other and cooperate with each other. The upper mold mechanism is provided with a positioning insert, which has a contour positioning part. The positioning insert is used to press against the battery cover and position the two transition plates of the battery cover during riveting. This battery cover riveting device can be used to rivet the battery cover of a power battery. During riveting, the assembled battery cover can be placed on the lower mold mechanism, and the upper mold mechanism moves downwards to rivet the battery cover. During the riveting process, as the upper mold mechanism moves downward to rivet the battery cover, the positioning insert presses onto the battery cover and positions and limits the two adapter plates of the battery cover. The contour positioning part cooperates with the two adapter plates, which effectively prevents the adapter plates from rotating around the cylindrical end of the terminal post during the riveting process. For the riveting process of the same batch of battery covers, this can prevent the adapter plates from rotating during the riveting process, thereby ensuring the consistency of the rotation angle of the adapter plates during the riveting process of the same batch of battery covers. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a cross-sectional structural diagram of a battery cover in the prior art;

[0033] Figure 2 This is an exploded view of the battery cover in the prior art;

[0034] Figure 3 This is a schematic diagram of the structure of the battery cover riveting device and the battery cover provided in the embodiments of this application;

[0035] Figure 4 This is a schematic diagram of the positioning insert and battery cover provided in the embodiments of this application;

[0036] Figure 5 yes Figure 4 Enlarged view of a local structure in the image;

[0037] Figure 6 This is a bottom view of the positioning insert provided in the embodiment of this application.

[0038] Reference numerals: 10-Upper mold mechanism; 11-Upper mold base; 12-Upper pad; 13-Upper clamping plate; 14-Upper pressure back plate; 15-Upper pressure plate; 16-Riveting punch; 17-Positioning insert; 171-First positioning insert; 1711-First guide surface; 172-Second positioning insert; 1721-Second guide surface; 173-Punch through hole; 20-Lower mold mechanism; 21-Lower template; 22-Lower mold base; 23-Positioning block; 24-Injection hole positioning pin; 31-Pole post; 32-Plastic sheath; 33-Sealing ring; 34-Top cover plate; 35-Cover plate plastic; 36-Adapter plate. Detailed Implementation

[0039] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of 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.

[0040] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0041] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0042] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or a point connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0043] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0044] like Figure 1 and Figure 2 As shown, the battery cover of the power battery includes, from top to bottom, a terminal post 31, a plastic sheath 32, a sealing ring 33, a top cover plate 34, a cover plastic 35, and an adapter plate 36. During the production process of the battery cover, the battery cover needs to be riveted using a corresponding riveting device. The cylindrical end of the terminal post 31 passes through the plastic sheath 32, the sealing ring 33, the top cover plate 34, the cover plastic 35, and the adapter plate 36 in sequence, and is riveted and fixed to the adapter plate 36. Since the cylindrical end of the terminal post 31 is matched with the circular hole on the adapter plate 36, the terminal post 31 expands under force during the riveting process, which may cause the adapter plate 36 to rotate around the cylindrical end of the terminal post 31. For the riveting process of the same batch of battery covers, this phenomenon will cause the rotation angle of the adapter plate 36 of the same batch of battery covers to be inconsistent, resulting in poor consistency of the rotation angle of the adapter plate 36.

[0045] To address the problems in the prior art, this application provides a battery cover riveting device. When riveting the battery cover, the adapter plate of the battery cover is positioned and limited by the positioning insert, which effectively prevents the adapter plate from rotating around the cylindrical end of the terminal post during the riveting process. This ensures the consistency of the rotation angle of the adapter plate during the riveting process of battery covers of the same batch.

[0046] Example 1

[0047] See Figures 1 to 4 The battery cover riveting device according to an embodiment of this application includes:

[0048] The upper mold mechanism 10 is provided with a positioning insert 17. The positioning insert 17 has a contour positioning part. The positioning insert 17 is used to press on the battery cover and position the two adapter plates 36 of the battery cover when riveting the battery cover.

[0049] The lower mold mechanism 20 is positioned opposite to the upper mold mechanism 10 and cooperates with the upper mold mechanism 10.

[0050] Among them, the battery cover riveting device is particularly suitable for riveting the battery cover of power batteries, such as... Figure 1 and Figure 2 As shown, Figure 1 and Figure 2 This is a schematic diagram of the battery cover of a power battery. In this embodiment, the riveting of the battery cover of the power battery is used as an example to elaborate, explain and interpret the riveting device of the battery cover.

[0051] It should be noted that in this embodiment, "riveting" can also be understood as "riveting".

[0052] In this embodiment, the lower mold mechanism 20 is arranged opposite to the upper mold mechanism 10 and cooperates with the upper mold mechanism 10 to rivet the battery cover of the power battery. The lower mold mechanism 20 is used to place the battery cover of the assembled power battery, and the upper mold mechanism 10 rivets the battery cover by moving downward.

[0053] In this embodiment, the upper mold mechanism 10 is provided with a positioning insert 17, which has a contour positioning part. The contour positioning part is based on the two transition plates 36 of the battery cover. It can be understood that the contour positioning part can be based on the partial structure of the two transition plates 36 of the battery cover. When the battery cover riveting device rivets the battery cover, the positioning insert 17 is pressed on the battery cover. The contour positioning part of the positioning insert 17 cooperates with the two transition plates 36 of the battery cover to position and limit the two transition plates 36 of the battery cover.

[0054] The battery cover riveting device of this application embodiment can be used to rivet the battery cover of a power battery. When riveting the battery cover, the assembled battery cover can be placed on the lower mold mechanism 20, and the upper mold mechanism 10 moves downward to rivet the battery cover. During the process of the upper mold mechanism 10 moving downward to rivet the battery cover, the positioning insert 17 presses on the battery cover and positions and limits the two adapter plates 36 of the battery cover. The contour positioning part cooperates with the two adapter plates 36. In this way, the adapter plates 36 can be effectively prevented from rotating around the cylindrical end of the pole post 31 during the riveting process. For the riveting processing of the same batch of battery covers, the adapter plates 36 can be prevented from rotating during the riveting process of the same batch of battery covers, thereby ensuring the consistency of the rotation angle of the adapter plates 36 during the riveting process of the same batch of battery covers.

[0055] Example 2

[0056] See Figures 1 to 4 Based on the above embodiment one, the difference between this embodiment and embodiment one is that the battery cover riveting device in this embodiment includes a first positioning insert 171, which has a first side plate and a first bottom plate connected to each other, and the first side plate and the first bottom plate form a contour positioning part.

[0057] In this embodiment, the first positioning insert 171 can be in the form of a cuboid, specifically a flat cuboid. The first side plate of the first positioning insert 171 can be four. In this embodiment, the first side plate and the first bottom plate form a contour positioning part, which can be the contour positioning part formed by the two first side plates and the first bottom plate corresponding to the two adapter plates 36 of the battery cover.

[0058] In this embodiment, the first positioning insert 171 can be disposed on the upper mold mechanism 10 through the first side plate; or, the first positioning insert 171 can also include a top plate, which is connected to the first side plate, and the first positioning insert 171 can be disposed on the upper mold mechanism 10 through the top plate.

[0059] In the above structure, the structure of the first positioning insert 171 has good structural strength. It not only has a relatively stable structure, but is also more suitable for positioning and limiting the two adapter plates 36 of the battery cover. In addition, it can better match the structure of the two adapter plates 36 of the battery cover, and better cooperate with the two adapter plates 36 of the battery cover through the contour positioning part formed by the first positioning insert 171.

[0060] Furthermore, in this embodiment, an inwardly transitioning first guide surface 1711 is formed at the connection position between the first side plate and the first bottom plate.

[0061] In this embodiment, an inwardly transitioning first guide surface 1711 is formed at the connection position between the first side plate and the first bottom plate, that is, a first guide surface 1711 is formed at the connection position between the first side plate and the first bottom plate, which transitions into the interior of the first positioning insert 171.

[0062] For example, the first guide surface 1711 may be an inward transition slope or an inward transition arc surface. In this embodiment, the first guide surface 1711 adopts an inward transition arc surface.

[0063] In the above structure, the first guide surface 1711 provided at the connection position between the first side plate and the first bottom plate of the first positioning insert 171 can guide the first positioning insert 171 to be aligned when the upper mold mechanism 10 moves downward to rivet the battery cover, so that it can be smoothly and smoothly pressed onto the battery cover and the two adapter plates 36, avoiding friction and collision when the upper mold mechanism 10 moves downward to rivet the battery cover, thereby avoiding damage to the two adapter plates 36 of the battery cover.

[0064] Example 3

[0065] See Figures 1 to 5 Based on the above embodiment two, the difference between this embodiment and embodiment two is that the battery cover riveting device in this embodiment further includes a second positioning insert 172 in the positioning insert 17. The second positioning insert 172 is disposed on the first base plate and is used to position between the two adapter plates 36 of the battery cover when riveting the battery cover.

[0066] In this embodiment, a recess is formed between the two adapter plates 36 of the battery cover. The second positioning insert 172 is used to be placed in the recess between the two adapter plates 36 of the battery cover when the battery cover is riveted, so as to position and limit the two adapter plates 36 of the battery cover.

[0067] In this embodiment, the height of the second positioning insert 172 needs to be less than the thickness of the main body of the adapter plate 36, so as to avoid the first positioning insert 171 being unable to press against the battery cover plate; preferably, the height of the second positioning insert 172 matches the thickness of the main body of the adapter plate 36.

[0068] In the above structure, the second positioning insert 172 can be placed in the recess formed between the two transition plates 36 of the battery cover when the upper mold mechanism 10 moves downward to rivet the battery cover. It performs secondary positioning and limiting of the two transition plates 36 of the battery cover, better restricting the rotation of the two transition plates 36 of the battery cover. It works together with the first positioning insert 171 to position and limit the two transition plates 36 of the battery cover. This can better prevent the transition plates 36 from rotating around the cylindrical end of the pole post 31 during the riveting process.

[0069] In this embodiment, the second positioning insert 172 has a second side plate and a second bottom plate connected to each other. The second side plate and the second bottom plate are used to be positioned together between the two adapter plates 36 of the battery cover.

[0070] In this embodiment, the second positioning insert 172 can be in the form of a cuboid, specifically a flat cuboid, wherein the second positioning insert 172 can have four second side plates.

[0071] In this embodiment, the second positioning insert 172 can be disposed on the first bottom plate of the first positioning insert 171 via the second side plate; or, the second positioning insert 172 can also include a top plate, which is connected to the second side plate, and the second positioning insert 172 can be disposed on the first bottom plate of the first positioning insert 171 via the top plate.

[0072] In the above structure, the second positioning insert 172 has good structural strength, not only has a relatively stable structure, but is also more suitable for positioning and limiting the two adapter plates 36 of the battery cover. In addition, it can better match the position between the two adapter plates 36 of the battery cover (i.e. the formed recessed part), so that the second positioning insert 172 can be better stabilized between the two adapter plates 36 of the battery cover, ensuring the effect of secondary positioning and limiting of the two adapter plates 36 of the battery cover.

[0073] Furthermore, in this embodiment, an inwardly transitioning second guide surface 1721 is formed at the connection position between the second side plate and the second bottom plate.

[0074] In this embodiment, a second guide surface 1721 that transitions inward is formed at the connection position between the second side plate and the second bottom plate, that is, a second guide surface 1721 that transitions into the interior of the second positioning insert 172 is formed at the connection position between the second side plate and the second bottom plate.

[0075] For example, the second guide surface 1721 can be an inward transition slope or an inward transition arc surface. In this embodiment, the second guide surface 1721 adopts an inward transition arc surface.

[0076] In the above structure, the second guide surface 1721 provided at the connection position between the second side plate and the second bottom plate of the second positioning insert 172 can guide the second positioning insert 172 to be aligned when the upper mold mechanism 10 moves downward to rivet the battery cover, so that it can smoothly and easily enter the position between the two transition plates 36 of the battery cover, avoiding friction and collision when the upper mold mechanism 10 moves downward to rivet the battery cover, thereby avoiding damage to the two transition plates 36 of the battery cover.

[0077] Example 4

[0078] See Figures 1 to 6 Based on any of the above embodiments one to three, the difference between this embodiment and any of the above embodiments one to three is that the battery cover riveting device in this embodiment includes an upper mold base 11, an upper pad 12, an upper clamping plate 13, an upper pressure back plate 14 and an upper pressure plate 15 arranged sequentially from top to bottom.

[0079] The upper mold mechanism 10 also includes a riveting punch 16, which is located at the bottom of the upper pad 12 and passes through the upper clamping plate 13, the upper pressure back plate 14 and the upper pressure plate 15.

[0080] The positioning insert 17 is located at the bottom of the upper pressure back plate 14 and is embedded in the upper pressure plate 15; the positioning insert 17 is provided with a punch through hole 173 that matches the riveting punch 16.

[0081] In this embodiment, the upper mold base 11, the upper pad 12, and the upper clamping plate 13 can be fastened with screws or pins, and the upper pressure back plate 14 and the upper pressure plate 15 can be fastened with screws or pins. When the battery cover riveting device is in the open or closed state, there is a certain gap between the upper pressure back plate 14 and the upper clamping plate 13. The upper pressure back plate 14 and the upper clamping plate 13 are elastically connected to the upper clamping plate 13 through a limiting block and a spring. The upper pressure back plate 14 and the upper clamping plate 13 are separated when the battery cover riveting device is open or closed, and are fitted together when closed.

[0082] In this embodiment, two riveting punches 16 are provided for the two adapter plates 36 corresponding to the battery cover; correspondingly, two punch through holes 173 matching the riveting punches 16 are provided on the positioning insert 17.

[0083] Based on Embodiment 2 or Embodiment 3, the positioning insert 17 is disposed at the bottom of the upper pressure back plate 14 and embedded in the upper pressure plate 15; the positioning insert 17 is provided with a punch through hole 173 matching the riveting punch 16, that is, the first positioning insert 171 is disposed at the bottom of the upper pressure back plate 14 and embedded in the upper pressure plate 15; the first positioning insert 171 is provided with a punch through hole 173 matching the riveting punch 16.

[0084] In the above structure, the upper mold mechanism 10 with this structure is more reasonable and practical, and can have a better riveting effect on the battery cover, thus improving the riveting quality of the battery cover.

[0085] Example 5

[0086] See Figures 1 to 6 Based on any of the above embodiments one to four, the difference between this embodiment and any of the embodiments one to four is that the battery cover riveting device in this embodiment includes a lower mold mechanism 20 comprising a lower mold plate 21 and a lower mold base 22 arranged sequentially from top to bottom.

[0087] In this embodiment, the lower mold plate 21 of the lower mold mechanism 20 is used to place the battery cover plate of the power battery.

[0088] In the above structure, the lower mold mechanism 20 has a relatively simple and uncomplicated structure, consisting only of the lower mold plate 21 and the lower mold base 22. This simplifies the overall structure of the battery cover riveting device, helps reduce the cost of the battery cover riveting device, and facilitates subsequent maintenance.

[0089] Furthermore, in this embodiment, a plurality of positioning blocks 23 are provided on the lower template 21, and the plurality of positioning blocks 23 are used to position the battery cover.

[0090] For example, there may be eight positioning blocks 23 on the lower template 21. The eight positioning blocks 23 may be arranged in two columns, with four in each column. When the eight positioning blocks 23 are used to position the battery cover, the eight positioning blocks 23 position and limit the four corners and both sides of the battery cover.

[0091] In the above structure, multiple positioning blocks 23 can be used to position and limit the battery cover plate placed on the lower template 21, which can facilitate the accurate placement of the assembled battery cover plate and prevent the battery cover plate from shifting during the riveting process, thus helping to improve the riveting efficiency and quality of the battery cover plate.

[0092] Furthermore, in this embodiment, the lower template 21 is provided with an injection hole positioning pin 24, which is used to penetrate the injection hole on the battery cover to position the battery cover.

[0093] Specifically, the liquid injection hole on the battery cover is located on the top cover plate 34 of the battery cover, and the liquid injection hole positioning pin 24 matches the liquid injection hole on the battery cover.

[0094] In the above structure, the injection hole positioning pin 24 can be used to position the battery cover plate placed on the lower template 21, which can facilitate the accurate placement of the assembled battery cover plate and help improve the riveting efficiency and riveting quality of the battery cover plate.

[0095] In all the above embodiments, "large" and "small" are relative terms, "more" and "less" are relative terms, and "upper" and "lower" are relative terms. The embodiments of this application will not elaborate further on the expression of such relative terms.

[0096] It should be understood that phrases such as "in one embodiment," "in this embodiment," "in this application embodiment," or "as an optional implementation" throughout the specification mean that a specific feature, structure, or characteristic related to an embodiment is included in at least one embodiment of this application. Therefore, phrases such as "in one embodiment," "in this embodiment," "in this application embodiment," or "as an optional implementation" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Those skilled in the art should also understand that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily essential to this application.

[0097] In the various embodiments of this application, it should be understood that the sequence number of each process does not necessarily imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0098] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of protection of the claims.

Claims

1. A battery cover plate riveting device characterized by comprising: include: The upper mold mechanism (10) is provided with a positioning insert (17), which has a contour positioning part. The positioning insert (17) is used to press on the battery cover and position the two adapter plates (36) of the battery cover when riveting the battery cover. The lower mold mechanism (20) is disposed opposite to the upper mold mechanism (10) and cooperates with the upper mold mechanism (10).

2. The battery cover riveting device according to claim 1, wherein The positioning insert (17) includes a first positioning insert (171), which has a first side plate and a first bottom plate connected to each other, and the first side plate and the first bottom plate form the contour positioning part.

3. The battery cover riveting apparatus according to claim 2, wherein A first guide surface (1711) is formed at the connection position between the first side plate and the first bottom plate, which transitions inward.

4. The battery cover riveting apparatus according to claim 2, wherein The positioning insert (17) further includes a second positioning insert (172), which is disposed on the first base plate. The second positioning insert (172) is used to position itself between the two adapter plates (36) of the battery cover when the battery cover is riveted.

5. The battery cover riveting device of claim 4, wherein, The second positioning insert (172) has a second side plate and a second bottom plate connected to each other, which are used to be positioned together between the two adapter plates (36) of the battery cover.

6. The battery cover riveting apparatus according to claim 5, wherein A second guide surface (1721) is formed at the connection position between the second side plate and the second bottom plate, which transitions inward.

7. The battery cover riveting apparatus according to any one of claims 1 to 6, characterized by The upper mold mechanism (10) includes an upper mold base (11), an upper pad (12), an upper clamping plate (13), an upper pressure back plate (14), and an upper pressure plate (15) arranged sequentially from top to bottom; The upper mold mechanism (10) also includes a riveting punch (16), which is located at the bottom of the upper pad (12) and passes through the upper clamping plate (13), the upper pressure back plate (14) and the upper pressure plate (15); The positioning insert (17) is disposed at the bottom of the upper pressure back plate (14) and embedded in the upper pressure plate (15); the positioning insert (17) is provided with a punch through hole (173) matching the riveting punch (16).

8. The battery cover riveting apparatus according to any one of claims 1 to 6, characterized by The lower mold mechanism (20) includes a lower mold plate (21) and a lower mold base (22) arranged sequentially from top to bottom.

9. The battery cover riveting device according to claim 8, characterized in that, The lower template (21) is provided with a plurality of positioning blocks (23), which are used to position the battery cover.

10. The battery cover riveting device of claim 8, wherein, The lower template (21) is provided with a liquid injection hole positioning pin (24), which is used to insert into the liquid injection hole on the battery cover to position the battery cover.

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