Tool structure, battery cover plate shaping device and shaping method thereof

Abstract

The application discloses a tool structure, a battery cover plate shaping device and a shaping method thereof, and relates to the technical field of battery cover plate shaping devices. The tool structure is used for mounting a battery cover plate and has a thickness direction. The tool structure comprises a first tool plate and a second tool plate. The first tool plate has a first surface and a second surface opposite to each other along the thickness direction. The first surface is provided with a mounting space used for mounting the battery cover plate. The second tool plate is located on the side of the first surface of the first tool plate. The second tool plate is connected with the first tool plate. The projection of the second tool plate on the first tool plate is at least partially located in the mounting space. The second tool plate is used for covering the battery cover plate. The battery cover plate has an exposed area exposed to the second tool plate. A burr protruding structure is arranged on the exposed area. When the battery cover plate is subjected to deburring treatment by using an abrasive water jet, the abrasive water jet is allowed to only act on the burr protruding structure and the position of the battery cover plate where the burr protruding structure is arranged. The method is targeted and beneficial to the protection of the battery cover plate.

Description

Technical Field

[0001] This application relates to the field of battery processing technology, and in particular to a tooling structure, a battery cover shaping device and a shaping method thereof. Background Technology

[0002] Batteries in related technologies generally include a casing, bare cells, and a cover plate. The bare cells are placed inside the casing, and the cover plate is connected to the casing to seal the bare cells inside the casing.

[0003] Currently, battery covers are typically manufactured using stamping dies on a press by applying pressure to the material. However, due to limitations in current stamping technology, burrs are unavoidable in stamped products, resulting in burrs on the covers. Therefore, deburring is usually required. However, the deburring process can easily cause wear, scratches, and damage to the cover, leading to air and liquid leaks, which in turn affects battery safety. Summary of the Invention

[0004] This application discloses a tooling structure, a battery cover shaping device, and a shaping method thereof, which can effectively protect the battery cover during deburring and shaping to ensure its aesthetics, while avoiding scratches and damage to the battery cover, thus ensuring its sealing performance, improving the sealing effect of the battery cover, and thereby improving the safety of battery use.

[0005] To achieve the above objectives, in a first aspect, this application discloses a tooling structure for installing a battery cover plate, the tooling structure having a thickness direction, the tooling structure comprising:

[0006] A first tooling plate has a first surface and a second surface opposite each other along the thickness direction, and a mounting space is provided on the first surface for mounting the battery cover; and

[0007] A second tooling plate is located on the side of the first surface of the first tooling plate and is connected to the first tooling plate. The projection of the second tooling plate onto the first tooling plate is at least partially located in the mounting space. The second tooling plate is used to cover the battery cover plate. The battery cover plate has an exposed area that is exposed to the second tooling plate so that the burr protrusions formed on the exposed area can be exposed to the second tooling plate and not obstructed by the second tooling plate. This allows the abrasive water jet to act only on the burr protrusions and the location of the burr protrusions on the battery cover plate when deburring the battery cover plate using abrasive water jet.

[0008] The end cap assembly provided in this application includes a first tooling plate and a second tooling plate. An installation space is provided on the first tooling plate to install a battery cover, and the second tooling plate covers the battery cover, giving the battery cover an exposed area that protrudes from the second tooling plate. This exposed area contains burr protrusions, ensuring that the burr protrusions on the battery cover are not obstructed by the second tooling plate. This allows the abrasive water jet to act only on the burr protrusions and the locations on the battery cover where the burr protrusions are located during deburring of the battery cover. This enables the abrasive water jet to impact and remove the burr protrusions while preventing the abrasive water jet from acting on areas on the battery cover without burr protrusions. This reduces the risk of scratches or damage to the battery cover caused by the abrasive water jet, ensuring the structural integrity and aesthetics of the battery cover. This, in turn, helps ensure the sealing performance of the battery cover, improves the sealing effect, and ultimately enhances the safety of the battery.

[0009] As an optional implementation, in an embodiment of the first aspect of this application, the exposed area of ​​the battery cover includes an outer peripheral edge located at the outer periphery of the battery cover, the projection of the second tooling plate onto the first tooling plate is located in the mounting space, and the outer peripheral edge protrudes outward from the outer periphery of the second tooling plate; and / or,

[0010] The battery cover plate is provided with a through hole extending along the thickness direction. The through hole includes at least one of a terminal hole, a liquid injection hole, and an explosion-proof hole. The exposed area of ​​the battery cover plate includes the hole edge located at the periphery of the through hole. The first tooling plate is provided with a first through hole structure extending along the thickness direction. The first through hole structure is located in the installation space and is disposed opposite to the through hole. The second tooling plate is provided with a second through hole structure extending along the thickness direction. The second through hole structure is disposed opposite to the through hole. The projection of the hole edge on the second tooling plate is located in the second through hole structure.

[0011] It is evident that the tooling structure in this application can be used in equipment for shaping burrs and protrusions on the outer periphery of the battery cover, and / or in equipment for shaping burrs and protrusions on the periphery of through holes such as terminal holes, injection holes, and explosion-proof holes on the battery cover. It has a wide range of applications and high flexibility.

[0012] As an optional implementation, in an embodiment of the first aspect of this application, the first tooling plate is provided with a first sub-through hole extending along the thickness direction, the first sub-through hole is located in the installation space, and a first connecting protrusion is provided in the first sub-through hole, the first connecting protrusion being provided with a first connecting hole whose axis extends along the thickness direction.

[0013] The second tooling plate is provided with a second sub-through hole that extends along the thickness direction. The second sub-through hole is opposite to and communicates with the first sub-through hole. A second connecting protrusion is provided in the second sub-through hole. The second connecting protrusion is provided with a second connecting hole whose axis extends along the thickness direction. The second connecting protrusion is located on the side of the first connecting protrusion facing away from the second surface. The second connecting hole and the first connecting hole are opposite to each other and are connected and fixed by a first threaded locking member.

[0014] The second tooling plate is fixedly connected to the first tooling plate by screws, bolts, or other threaded locking components, making installation simple, stable, and reliable, and also convenient for disassembly. Furthermore, since the second connecting protrusion is located within the second sub-through hole, the overall structure of the second tooling plate can be made smaller, facilitating its miniaturized design.

[0015] As an optional implementation, in an embodiment of the first aspect of this application, the first connecting protrusion has a first end and a second end opposite to each other in a first preset direction, the first end and the second end being respectively connected to the hole wall of the first sub-through hole to divide the first sub-through hole into two through hole portions, each of the through hole portions communicating with the second sub-through hole;

[0016] The second connecting protrusion has a third end and a fourth end opposite to each other in a second preset direction. The third end is connected to the hole wall of the second sub-through hole, and the fourth end is spaced apart from the hole wall of the second sub-through hole.

[0017] Wherein, the first preset direction and the second preset direction are parallel or intersecting.

[0018] Since the first connecting protrusion needs to support the second connecting protrusion, its load-bearing capacity is required. Therefore, connecting both ends of the first connecting protrusion to the wall of the first sub-through hole can improve the connection stability of the first connecting protrusion within the first sub-through hole and better support the second connecting protrusion. On the other hand, since the second connecting protrusion is set on the first connecting protrusion, it usually does not need to support other components, and its load-bearing capacity requirement is not high. Therefore, connecting one end of the second connecting protrusion to the wall of the second sub-through hole and not connecting the other end to the wall of the second sub-through hole can provide a connection position for the connection between the second tooling plate and the first tooling plate. At the same time, reducing the size of the second connecting protrusion reduces the overall weight of the second tooling plate, thereby achieving a lightweight design for the second tooling plate.

[0019] When the first preset direction and the second preset direction are parallel, the extension directions of the first connecting protrusion and the second connecting protrusion are the same, which allows the entire second connecting protrusion to be placed on the first connecting protrusion, increasing the contact area between the second connecting protrusion and the first connecting protrusion, improving the stability of the second connecting protrusion on the first connecting protrusion, and thus helping to improve the connection stability between the second tooling plate and the first tooling plate.

[0020] As an optional implementation, in an embodiment of the first aspect of this application, a plurality of limiting protrusions are provided on the first surface, the plurality of limiting protrusions are arranged at intervals along the circumference of the first tooling plate, and the mounting space is formed between the plurality of limiting protrusions and the first surface.

[0021] This design effectively removes part of the material from the first tooling plate to create multiple spaced-apart limiting protrusions, thereby reducing the overall weight of the first tooling plate and achieving a lightweight design.

[0022] As an optional implementation, in the embodiment of the first aspect of this application, the limiting protrusion is provided with a third connecting hole whose axis extends along the thickness direction, the outer peripheral side of the second tooling plate is provided with a third connecting protrusion, the third connecting protrusion is provided with a fourth connecting hole whose axis extends along the thickness direction, the third connecting protrusion is provided on the side of the limiting protrusion facing away from the first tooling plate, the fourth connecting hole and the third connecting hole are arranged opposite to each other and are connected and fixed by a second threaded locking member.

[0023] As can be seen, the limiting protrusion not only restricts the position of the battery cover on the first tooling plate, but also provides a connection position for the connection between the second tooling plate and the first tooling plate. In addition, the second tooling plate is fixedly connected to the first tooling plate by screws, bolts and other second threaded locking parts, which makes the installation simple, stable and reliable, and easy to disassemble.

[0024] As an optional implementation, in the embodiment of the first aspect of this application, the tooling structure further has a length direction and a width direction;

[0025] The plurality of limiting protrusions includes three first sub-limiting protrusions and three second sub-limiting protrusions. Each first sub-limiting protrusion and each second sub-limiting protrusion is provided with the third connecting hole. The three first sub-limiting protrusions are located on one side of the first tooling plate in the width direction, and the three second sub-limiting protrusions are located on the other side of the first tooling plate in the width direction. The three first sub-limiting protrusions are evenly arranged along the length direction, and the three first sub-limiting protrusions and the three second sub-limiting protrusions are symmetrically arranged about the length direction.

[0026] The third connecting protrusion includes a first sub-connecting protrusion and two second sub-connecting protrusions. The first sub-connecting protrusion and each of the second sub-connecting protrusions are provided with the fourth connecting hole. The first sub-connecting protrusion is located on one side of the second tooling plate in the width direction, and the two second sub-connecting protrusions are located on the other side of the second tooling plate in the width direction. The two second sub-connecting protrusions are symmetrically arranged about the first sub-connecting protrusion.

[0027] With this configuration, when assembling the second tooling plate onto the first tooling plate, whether one or two first sub-connecting protrusions are located on the front side of the second tooling plate, the fourth connecting hole on each sub-connecting protrusion has a corresponding third connecting hole that communicates with it. This allows the fourth connecting hole on each sub-connecting protrusion to connect with the third connecting hole via a threaded locking element, thereby achieving the connection between the second and first tooling plates. As a result, when assembling the second tooling plate, there is no need to pay attention to the left-right direction, providing a better installation error prevention effect and making the assembly of the second tooling plate more flexible, convenient, and quick.

[0028] As an optional implementation, in an embodiment of the first aspect of this application, the first tooling plate is provided with a support protrusion protruding toward the second tooling plate, the support protrusion being located in the mounting space 111, the support protrusion being used to support the battery cover, wherein the support protrusion has a support surface that contacts the battery cover;

[0029] The outer periphery of the battery cover protrudes beyond the outer periphery of the support surface; and / or,

[0030] The outer periphery of the support protrusion is provided with a notch, which is used to give the outer periphery of the battery cover a protruding portion that extends beyond the outer periphery of the support surface.

[0031] The presence of the support protrusion allows the protruding part of the battery cover plate that extends beyond the outer periphery of the support surface to be spaced apart from the first surface, making it easy to hold with a clamp or for the user to hold the protruding part of the battery cover plate that extends beyond the outer periphery of the support surface and remove the battery cover plate from the first tooling plate, making it easy to pick up and unload manually.

[0032] As an optional implementation, in an embodiment of the first aspect of this application, the limiting protrusion has a first surface facing the second tooling plate and a second surface located in the mounting space, and a chamfer is provided at the connection between the first surface and the second surface.

[0033] As an optional implementation, in an embodiment of the first aspect of this application, the outer peripheral side of the second tooling plate includes a first peripheral side and a second peripheral side connected together. In the thickness direction, the first peripheral side is closer to the first tooling plate than the second peripheral side, and the first peripheral side extends along the thickness direction. The second peripheral side is inclined in the thickness direction from its connection with the first peripheral side towards the middle of the second tooling plate.

[0034] As can be seen, the first circumference side is a plane parallel to the thickness direction, and the second circumference side is an inclined plane at an angle to the thickness direction. The inclined plane can better guide the abrasive water jet to the location of the burr protrusions on the periphery of the battery cover, so as to act on the burr protrusions. The plane can ensure that the flow direction of the abrasive water jet before contacting the burr protrusions on the periphery of the battery cover is along the thickness direction, opposite to the protrusion direction of the burr protrusions on the periphery of the battery cover, thereby effectively removing the burr protrusions on the periphery of the battery cover and improving the deburring effect.

[0035] As an optional implementation, in an embodiment of the first aspect of this application, the width of the first peripheral side in the thickness direction is 0.5mm-3mm.

[0036] By controlling the width of the first circumference side in the thickness direction within the range of 0.5mm-3mm, it can be ensured that the flow direction of the abrasive water jet when it contacts the burr protrusions located at the periphery of the battery cover extends along the thickness direction, opposite to the protrusion direction of the burr protrusions located at the periphery of the battery cover, thereby effectively removing the burr protrusions located at the periphery of the battery cover and improving the deburring effect; at the same time, it can also prevent the second circumference side from being too small, so as to ensure the guiding effect of the second circumference side.

[0037] As an optional implementation, in an embodiment of the first aspect of this application, the first tooling plate is further provided with a plurality of third through-hole structures extending along the thickness direction. Providing a plurality of third through-hole structures not only facilitates better discharge of the abrasive water jet but also reduces the overall weight of the first tooling plate, achieving a lightweight design.

[0038] Secondly, this application discloses a battery cover shaping device, which includes a worktable, a spray gun device, and a tooling structure as described in the first aspect above. The first tooling plate of the tooling structure is mounted on the worktable, the spray gun device is movably mounted on the worktable, and the spray gun device can move relative to the worktable along the circumference of the exposed area for shaping the exposed area.

[0039] Thirdly, this application discloses a shaping method using the battery cover shaping equipment described in the second aspect above, the shaping method comprising:

[0040] The battery cover is installed into the mounting space of the first tooling plate;

[0041] The second tooling plate is placed over the battery cover, and the battery cover has an exposed area that is exposed to the second tooling plate.

[0042] The second tooling plate and the first tooling plate are connected and fixed together;

[0043] The first tooling plate is mounted on the workbench;

[0044] The spray gun device moves circumferentially relative to the worktable along the exposed area and sprays abrasive water jets into the exposed area to shape the exposed area.

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

[0046] The tooling structure provided in this application includes a first tooling plate and a second tooling plate. An installation space is provided on the first tooling plate to install a battery cover, and the second tooling plate covers the battery cover, giving the battery cover an exposed area that protrudes from the second tooling plate. This exposed area contains burr protrusions, ensuring that the burr protrusions on the battery cover are not obstructed by the second tooling plate. When deburring the battery cover using an abrasive water jet, the abrasive water jet is only allowed to act on the burr protrusions and the locations on the battery cover where the burr protrusions are located. This allows the abrasive water jet to impact and remove the burr protrusions while preventing the abrasive water jet from acting on areas on the battery cover without burr protrusions. This reduces the risk of wear, scratches, or damage to the battery cover caused by the abrasive water jet, ensuring the structural integrity and aesthetics of the battery cover. This, in turn, helps ensure the sealing performance of the battery cover, improves the sealing effect, and ultimately enhances the safety of the battery. Attached Figure Description

[0047] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0048] Figure 1 A simplified diagram of a device for forming an abrasive water jet;

[0049] Figure 2This is a schematic diagram of the first tooling structure disclosed in the embodiments of this application, in which a battery cover is installed;

[0050] Figure 3 yes Figure 2 A schematic diagram of the first exploded structure of the tooling structure and battery cover plate in the diagram.

[0051] Figure 4 yes Figure 2 A second exploded view of the tooling structure and battery cover plate in the diagram.

[0052] Figure 5 yes Figure 2 The tooling structure in the middle has a cross-sectional view along the AA direction with the battery cover plate installed.

[0053] Figure 6 yes Figure 5 A magnified view of point M in the image;

[0054] Figure 7 yes Figure 5 A magnified view of point N in the image;

[0055] Figure 8 This is a schematic diagram of the second tooling structure disclosed in the embodiments of this application, in which a battery cover is installed;

[0056] Figure 9 yes Figure 8 A sectional view of the tooling structure along the BB direction;

[0057] Figure 10 yes Figure 9 A magnified view of point P in the image;

[0058] Figure 11 yes Figure 9 A magnified view of point Q in the image;

[0059] Figure 12 yes Figure 8 A schematic diagram of the first exploded structure of the tooling structure and battery cover plate in the diagram.

[0060] Figure 13 yes Figure 8 A second exploded view of the tooling structure and battery cover plate in the diagram.

[0061] Figure 14 This is an exploded structural diagram of the first tooling structure disclosed in the embodiments of this application;

[0062] Figure 15 This is a first exploded structural diagram of the second tooling structure disclosed in the embodiments of this application;

[0063] Figure 16This is a second exploded view of the tooling structure disclosed in the embodiments of this application;

[0064] Figure 17 This is a schematic diagram of the structure of the first tooling plate and the battery cover plate disclosed in the embodiments of this application;

[0065] Figure 18 This is a flowchart of a shaping method disclosed in an embodiment of this application.

[0066] Explanation of main figure symbols

[0067] 1a - Mixing chamber; 1b - Spray gun assembly;

[0068] 100 - Tooling structure; 11 - First tooling plate; 11a - First surface; 11b - Second surface; 111 - Mounting space; 112 - First through-hole structure; 1121 - First sub-through-hole; 1121a - Through-hole portion; 1122 - Third sub-through-hole; 1123 - Fifth sub-through-hole; 113 - Annular receiving groove; 114 - Third through-hole structure; 115 - Limiting protrusion; 115a - First surface; 115b - Second surface; 115c - Chamfer; 115d - First sub-limiting protrusion; 115e - Second sub-limiting protrusion; 1151 - Third connecting hole; 116 - First connecting protrusion; 116a - First end; 116b - Second End; 1161-First connecting hole; 117-Supporting protrusion; 1171-Supporting surface; 118-Notch; 12-Second tooling plate; 12a-First peripheral side; 12b-Second peripheral side; 121-Second through hole structure; 1211-Second sub-through hole; 1212-Fourth sub-through hole; 1213-Sixth sub-through hole; 122-First extending protrusion; 123-Second receiving groove; 124-Second connecting protrusion; 124a-Third end; 124b-Fourth end; 1241-Second connecting hole; 125-Third connecting protrusion; 125a-First sub-connecting protrusion; 125b-Second sub-connecting protrusion; 1251-Fourth connecting hole;

[0069] 200 - Battery cover; 20a - Third surface; 20b - Fourth surface; 20c - Protruding part; 21 - Through hole; 21a - Terminal hole; 21b - Injection hole; 21c - Explosion-proof hole; 22 - Burr protrusion structure; 221 - First burr protrusion; 222 - Second burr protrusion; 222a - First sub-burr protrusion; 222b - Second sub-burr protrusion; 222c - Third sub-burr protrusion; 23 - Annular protrusion; 24 - First receiving groove; 25 - Second extension protrusion;

[0070] f1 - Length direction; f2 - Width direction; f3 - Thickness direction; f4 - First preset direction; f5 - Second preset direction;

[0071] O1 - First axis of symmetry; O2 - Second axis of symmetry. Detailed Implementation

[0072] To make the objectives, technical solutions, and advantages of this application clearer, the exemplary embodiments of this application will be clearly and completely described below with reference to the accompanying drawings of the exemplary embodiments. Obviously, the described exemplary embodiments are only some embodiments of this application, and not all embodiments. That is, the specific embodiments described herein are merely used to explain this application and are not intended to limit this application.

[0073] It should be noted that the brief descriptions of terminology used in this application are merely for the purpose of facilitating understanding of the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to limit this application.

[0074] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this application.

[0075] The terms "first," "second," etc., used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of this application, a first connecting protrusion may be referred to as a second connecting protrusion, and similarly, a second connecting protrusion may be referred to as a first connecting protrusion. Both the first connecting protrusion and the second connecting protrusion are connecting protrusions, but they are not the same connecting protrusion.

[0076] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0077] 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.

[0078] In the description of this application, it should be noted that the singular forms of "a," "an," and "the" may also include the plural forms, unless the context clearly indicates otherwise. It should also be understood that terms such as "comprising / including" or "having" specify the presence of the stated features, integrals, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, integrals, steps, operations, components, parts, or combinations thereof.

[0079] In addition, the term "and / or" as used in this specification includes any and all combinations of the related listed items. For example, A and / or B can mean: A alone, A and B together, or B alone. That is, the term "and / or" as used in this specification includes any and all combinations of the related listed items.

[0080] Batteries in related technologies typically include a casing, bare cells, and a battery cover. The bare cells are housed inside the casing, and the battery cover is connected to the casing to seal the bare cells within the casing.

[0081] Currently, battery covers in the industry are typically manufactured using stamping dies on a press to apply pressure to the material. However, due to limitations in current stamping technology, burrs are inevitably produced in stamped products. Therefore, battery covers usually have burrs, requiring manual deburring afterward. However, manual deburring is inefficient and the results are not ideal.

[0082] In order to improve the deburring efficiency of battery covers, a paint brush is usually used to remove burrs from the battery cover. However, the paint brush cannot effectively remove burrs from the battery cover, resulting in low product quality of the battery cover.

[0083] In response, the applicant discovered through research that abrasive waterjet polishing technology can effectively remove burrs and protrusions on battery cover plates, thereby improving the product quality of the battery cover plates. The specific principle is as follows: Figure 1As shown, after high-pressure water and abrasive are mixed in the mixing chamber, a high-pressure abrasive water jet is formed. The abrasive water jet is sprayed onto the surface of the battery cover through the spray gun device 1b. By means of the high-speed collision between the abrasive particles and the surface of the battery cover, the local stress field on the battery cover is concentrated at high speed and changes rapidly, thus producing erosion and shearing, achieving the purpose of removing burrs.

[0084] The abrasive used can be 200-mesh garnet sand, which is ground from alumina raw materials and features high hardness, high temperature resistance, stable chemical properties, uniform particle size, and high grinding efficiency. Using 200-mesh garnet sand, which can be ground from alumina raw materials, can more effectively remove burrs from the battery cover, further improving the product quality of the battery cover.

[0085] However, during the process of abrasive water jets being sprayed onto the surface of the battery cover through the spray gun device 1b to remove burrs, in addition to acting on the burrs to remove them from the battery cover, it also acts on the areas of the battery cover where there are no burrs, causing wear and scratches on the battery cover, affecting its aesthetics, and may even cause the battery cover to fail to fit with the casing to seal the bare cells, resulting in air and liquid leakage, and thus affecting the safety of battery use.

[0086] In view of this, embodiments of this application provide a tooling structure that can effectively protect the battery cover from scratches and damage during the deburring and shaping process of the battery cover.

[0087] The technical solutions of some 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. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0088] Please see Figure 2 , Figure 2 This is an exemplary structural diagram of a tooling structure used for mounting a battery cover. Figure 2 The tooling structure shown in this application is generally rectangular. However, it is understood that the accompanying drawings are only provided as an example of the tooling structure 100 being generally rectangular, and do not limit the tooling structure 100 of this application to only being rectangular.

[0089] In other embodiments, the tooling structure 100 may also be a circular structure, and this application does not specifically limit it in this regard. However, it should be understood that the rectangular tooling structure 100 is mainly used for installing the square battery cover 200, and the circular tooling structure 100 is mainly used for installing the circular battery cover 200.

[0090] In this application, the battery cover 200 is made of metal, for example, the battery cover 200 may be a sheet of plain aluminum.

[0091] To facilitate illustrating the positions of the various components of the tooling structure 100, this embodiment of the application establishes a three-dimensional coordinate system based on the tooling structure 100, such as... Figure 2 As shown, the x-axis direction is the length direction f1 of the tooling structure 100, the y-axis direction is the width direction f2 of the tooling structure 100, and the z-axis direction is the thickness direction f3 of the tooling structure 100. That is, the tooling structure 100 in this application has a length direction f1, a width direction f2, and a thickness direction f3.

[0092] Please see Figure 3 and Figure 4 , Figure 3 This is an exemplary exploded structural diagram of the tooling structure in one specific embodiment. Figure 4 This is an exemplary exploded structural diagram of the tooling structure in one specific embodiment.

[0093] like Figure 3 and Figure 4 As shown, the battery cover 200 is provided with a through hole 21 extending along the thickness direction f3, wherein the through hole 21 includes at least one of a terminal hole 21a, a liquid injection hole 21b, and an explosion-proof hole 21c. That is, as an example, the through hole 21 may include only one of the terminal hole 21a, the liquid injection hole 21b, and the explosion-proof hole 21c. For example, the through hole 21 may include only the terminal hole 21a, or only the liquid injection hole 21b, or only the explosion-proof hole 21c. As another example, the through hole 21 may include only two of the terminal hole 21a, the liquid injection hole 21b, and the explosion-proof hole 21c. For example, the through hole 21 may include only the terminal hole 21a and the liquid injection hole 21b, or only the terminal hole 21a and the explosion-proof hole 21c, or only the liquid injection hole 21b and the explosion-proof hole 21c. Another example is that the via 21 includes an electrode hole 21a, an injection hole 21b, and an explosion-proof hole 21c.

[0094] Preferably, the via 21 includes a terminal hole 21a, an injection hole 21b, and an explosion-proof hole 21c. The terminal hole 21a is used for the terminal to pass through, the injection hole 21b is used for injecting electrolyte into the housing to wet the bare battery cell, and the explosion-proof hole 21c is used for installing an explosion-proof valve.

[0095] In this application, combined with Figures 4 to 7As shown, a burr protrusion structure 22 is formed on the surface of the battery cover 200. The burr protrusion structure 22 includes a first burr protrusion 221, which is disposed at the outer periphery of the battery cover 200; and / or, the burr protrusion structure 22 includes a second burr protrusion 222, which is disposed at the outer periphery of the through hole 21. In this case, the second burr protrusion 222 includes a first sub-burr protrusion 222a, which is disposed at the outer periphery of the terminal hole 21a; and / or, the second burr protrusion 222 includes a second sub-burr protrusion 222b, which is disposed at the outer periphery of the liquid injection hole 21b; and / or, the second burr protrusion 222 includes a third sub-burr protrusion 222c, which is disposed at the outer periphery of the explosion-proof hole 21c.

[0096] Please see Figures 4 to 7 The tooling structure 100 provided in this application embodiment is used to install the battery cover 200 in the deburring and shaping process of the battery cover. The tooling structure 100 includes a first tooling plate 11 and a second tooling plate 12. The first tooling plate 11 has a first surface 11a and a second surface 11b opposite to each other along the thickness direction f3. The first surface 11a is provided with an installation space 111 for installing the battery cover 200. The second tooling plate 12 is located on the side where the first surface of the first tooling plate 11 is located, and the second tooling plate 12 is adjacent to the first tooling plate 11. The plate 11 is connected, and the second tooling plate 12 is used to cover the battery cover 200. The battery cover 200 has an exposed area exposed to the second tooling plate 12, and the burr protrusion structure 22 formed on the exposed area is exposed. That is, the burr protrusion structure 22 on the battery cover 200 can be exposed to the second tooling plate 12 and is not blocked by the second tooling plate 12. So that when the battery cover 200 is deburred by the abrasive water jet, the abrasive water jet is allowed to act only on the burr protrusion structure 22 and the position where the burr protrusion structure 22 is set on the battery cover 200.

[0097] That is, when removing and shaping the burr protrusions 22 on the battery cover 200, the battery cover 200 can first be placed in the mounting space 111 of the first tooling plate 11, then the second tooling plate 12 can be closed, connecting and fixing the second tooling plate 12 and the first tooling plate 11, with the second tooling plate 12 covering and shielding the battery cover 200 and exposing the burr protrusions 22. Then, the coordinate system of the spray gun device is adjusted and calibrated, so that the spray gun device moves along the programmed trajectory and sprays the abrasive water jet onto the position of the battery cover 200 where the burr protrusions 22 are located (i.e., the exposed area), so that the abrasive particles in the abrasive water jet collide with and act on the burr protrusions 22, thereby achieving the purpose of removing the burr protrusions 22. Here, the movement of the spray gun device along the programmed trajectory can be understood as: the spray gun device moves circumferentially along the exposed area.

[0098] During the above process, since the second tooling plate 12 covers and shields the battery cover plate 200, only exposing the burr protrusion structure 22, the abrasive water jet can only act on the burr protrusion structure 22 and the location of the burr protrusion structure 22 on the battery cover plate 200. This allows the abrasive water jet to impact and remove the burr protrusion structure 22, while preventing the abrasive water jet from acting on the location of the battery cover plate 200 without the burr protrusion structure 22. This reduces the risk of wear, scratches, and damage to the battery cover plate 200 caused by the abrasive water jet, ensuring the structural integrity and aesthetics of the battery cover plate 200. This, in turn, helps to ensure the sealing performance of the battery cover plate 200, improves the sealing effect of the battery cover plate 200, and thus improves the safety of battery use.

[0099] As one embodiment, the exposed area of ​​the battery cover 200 includes the outer peripheral edge located at the outer periphery of the battery cover 200, where a burr protrusion structure (i.e., the aforementioned first burr protrusion 221) is formed. The projection of the second tooling plate 12 on the first tooling plate 11 is located in the mounting space 111, and the outer peripheral edge of the battery cover 200 protrudes outward from the outer periphery of the second tooling plate 12. Thus, the burr protrusion structure at the outer peripheral edge of the battery cover 200 can protrude outward from the outer periphery of the second tooling plate 12, exposing the second tooling plate 12 and not being blocked by the second tooling plate 12. Therefore, the burr protrusion structure provided at the outer peripheral edge of the battery cover 200 can be removed by the spray gun device.

[0100] In this embodiment, the circumferential movement of the spray gun device along the exposed area can be understood as the spray gun device moving along the outer periphery of the battery cover.

[0101] like Figure 6As shown, the distance d1 between the outer peripheral side of the second tooling plate 12 and the outer peripheral side of the battery cover plate 200 can be 0.10mm-0.20mm, exposing the first burr protrusion 221. For example, d1 = 0.10mm, 0.11mm, 0.12mm, 0.13mm, 0.14mm, 0.15mm, 0.16mm, 0.17mm, 0.18mm, 0.19mm or 0.20mm, etc.

[0102] By controlling the distance d1 between the outer peripheral side of the second tooling plate 12 and the outer peripheral side of the battery cover 200 within the range of 0.10mm-0.20mm, it can be ensured that the first burr protrusion 221 is not covered or blocked by the second tooling plate 12, so that the first burr protrusion 221 can be removed. At the same time, it can also avoid excessive exposure of the battery cover 200, thereby reducing the risk of wear, scratches and damage to the battery cover 200 caused by the abrasive water jet, and ensuring the structural integrity and aesthetics of the battery cover 200.

[0103] As another embodiment, such as Figures 4 to 7 As shown, when the battery cover 200 is provided with a through hole 21 extending along the thickness direction, the exposed area of ​​the battery cover 200 includes the hole edge located at the periphery of the through hole 21. A burr protrusion structure (i.e., the aforementioned second burr protrusion 222) is formed at the hole edge. The first tooling plate 11 is provided with a first through hole structure 112 extending along the thickness direction f3. The first through hole structure 112 is located in the installation space and is disposed opposite to the through hole 21. The second tooling plate 12 is provided with a second through hole structure 121 extending along the thickness direction f3. The second through hole structure 121 is disposed opposite to the through hole 21. The projection of the hole edge on the second tooling plate 12 is located in the second through hole structure 121. Therefore, the second burr protrusion 222 formed at the hole edge is located in the second through hole structure 121 and is not blocked by the second tooling plate 12. Therefore, during the removal of the second burr protrusion 222, the abrasive water jet is sprayed into the second through-hole structure 121, colliding with and acting on the second burr protrusion 222, so that the second burr protrusion 222 is dislodged from the periphery of the through-hole 21. The abrasive water jet that enters the second through-hole structure 121 is discharged through the through-hole 21 and the first through-hole structure 112, avoiding accumulation in the through-hole 21 or even in the second through-hole structure 121. This ensures that the abrasive water jet can be continuously injected into the second through-hole structure 121 and that the second burr protrusion 222 can be continuously and effectively impacted by the abrasive water jet, thereby ensuring that the second burr protrusion 222 can be effectively removed, resulting in a better deburring effect and a better product quality for the battery cover 200.

[0104] In this embodiment, the circumferential movement of the spray gun device along the exposed area can be understood as the spray gun device moving along the edge of the through hole.

[0105] As another embodiment, the exposed area of ​​the battery cover 200 includes the outer peripheral edge located at the outer periphery of the battery cover 200 and the hole edge located at the periphery of the through hole 21.

[0106] Among them, a burr protrusion structure is formed at the outer peripheral edge (that is, the first burr protrusion 221 mentioned above). The projection of the second tooling plate 12 on the first tooling plate 11 is located in the installation space 111, and the outer peripheral edge of the battery cover 200 protrudes outward from the outer peripheral edge of the second tooling plate 12. Therefore, the burr protrusion structure at the outer peripheral edge of the battery cover 200 can protrude outward from the outer peripheral edge of the second tooling plate 12, and be exposed to the second tooling plate 12, and not be blocked by the second tooling plate 12.

[0107] A burr protrusion structure (i.e., the aforementioned second burr protrusion 222) is formed at the edge of the hole. The first tooling plate 11 is provided with a first through hole structure 112 that extends along the thickness direction f3. The first through hole structure 112 is located in the installation space and is arranged opposite to the through hole 21. The second tooling plate 12 is provided with a second through hole structure 121 that extends along the thickness direction f3. The second through hole structure 121 is arranged opposite to the through hole 21. The projection of the hole edge on the second tooling plate 12 is located in the second through hole structure 121. Therefore, the second burr protrusion 222 formed at the hole edge is located in the second through hole structure 121 and is not blocked by the second tooling plate 12.

[0108] In some embodiments, the first through-hole structure 112 may include a first sub-through-hole 1121, which is opposite to and communicates with the pole post hole 21a. The second through-hole structure 121 may include a second sub-through-hole 1211, which is opposite to and communicates with the pole post hole 21a. The second burr protrusion 222 may include a first sub-burr protrusion 222a, which is disposed at the edge of the pole post hole 21a and located in the second sub-through-hole 1211, and is not obstructed by the second tooling plate 12. Therefore, during the removal of the first sub-burr protrusion 222a, the abrasive water jet is sprayed into the second sub-through hole 1211, colliding with and acting on the first sub-burr protrusion 222a, so that the first sub-burr protrusion 222a detaches from the periphery of the pole post hole 21a. The abrasive water jet entering the second sub-through hole 1211 is discharged through the pole post hole 21a and the first sub-through hole 1212, avoiding accumulation in the pole post hole 21a, or even in the second sub-through hole 1211. This ensures that the abrasive water jet can be continuously injected into the second sub-through hole 1211, and ensures that the first sub-burr protrusion 222a can be continuously and effectively impacted by the abrasive water jet, thereby ensuring that the first sub-burr protrusion 222a can be effectively removed.

[0109] In some embodiments, the first through-hole structure 112 may include a third sub-through-hole 1122, which is opposite to and communicates with the injection hole 21b. The second through-hole structure 121 may include a fourth sub-through-hole 1212, which is opposite to and communicates with the injection hole 21b. The second burr protrusion 222 may include a second sub-burr protrusion 222b, which is disposed at the edge of the injection hole 21b and located in the fourth sub-through-hole 1212, and is not obstructed by the second tooling plate 12. Therefore, during the removal of the second sub-burr protrusion 222b, the abrasive water jet is sprayed into the fourth sub-through hole 1212, colliding with and acting on the second sub-burr protrusion 222b, causing the second sub-burr protrusion 222b to detach from the periphery of the injection hole 21b. The abrasive water jet entering the fourth sub-through hole 1212 is discharged through the injection hole 21b and the third sub-through hole 1122, avoiding accumulation in the injection hole 21b or even in the fourth sub-through hole 1212. This ensures that the abrasive water jet can be continuously injected into the fourth sub-through hole 1212 and that the second sub-burr protrusion 222b can be continuously and effectively impacted by the abrasive water jet, thereby ensuring that the second sub-burr protrusion 222b can be effectively removed.

[0110] In some embodiments, the first through-hole structure 112 may include a fifth sub-through-hole 1123, which is opposite to and communicates with the explosion-proof hole 21c; the second through-hole structure 121 may include a sixth sub-through-hole 1213, which is opposite to and communicates with the explosion-proof hole 21c; and the second burr protrusion 222 may include a third sub-burr protrusion 222c, which is disposed at the edge of the explosion-proof hole 21c and located in the sixth sub-through-hole 1213, and is not obstructed by the second tooling plate 12. Therefore, during the removal of the third sub-burr protrusion 222c, the abrasive water jet is sprayed into the sixth sub-through hole 1213, colliding with and acting on the third sub-burr protrusion 222c, causing the third sub-burr protrusion 222c to detach from the periphery of the explosion-proof hole 21c. The abrasive water jet entering the sixth sub-through hole 1213 is discharged through the explosion-proof hole 21c and the fifth sub-through hole 1123, avoiding accumulation in the explosion-proof hole 21c or even in the sixth sub-through hole 1213. This ensures that the abrasive water jet can be continuously injected into the sixth sub-through hole 1213 and that the third sub-burr protrusion 222c can be continuously and effectively impacted by the abrasive water jet, thereby ensuring that the third sub-burr protrusion 222c can be effectively removed.

[0111] In some embodiments, the distance between the outer wall surface of the second through-hole structure 121 and the hole wall surface of the through-hole 21 is 0.10mm-0.20mm, exposing the second burr protrusion 222. Exemplarily, the distance between the outer wall surface of the second through-hole structure 121 and the hole wall surface of the through-hole 21 can be 0.10mm, 0.11mm, 0.12mm, 0.13mm, 0.14mm, 0.15mm, 0.16mm, 0.17mm, 0.18mm, 0.19mm, or 0.20mm, etc.

[0112] That is to say, such as Figures 8 to 11 As shown, the distance d2 between the wall surface of the second sub-through hole 1211 and the wall surface of the pole hole 21a is 0.10mm-0.20mm, for example, d2 = 0.10mm, 0.11mm, 0.12mm, 0.13mm, 0.14mm, 0.15mm, 0.16mm, 0.17mm, 0.18mm, 0.19mm or 0.20mm, etc., exposing the first sub-burr protrusion 222a; and / or, the distance d3 between the wall surface of the fourth sub-through hole 1212 and the wall surface of the injection hole 21b is 0.10mm-0.20mm, for example, d3 = 0.10mm, 0.11mm, 0.12mm, etc. The distance d4 between the wall surface of the sixth through hole 1213 and the wall surface of the explosion-proof hole 21c is 0.10mm-0.20mm, for example, d4 = 0.10mm, 0.11mm, 0.12mm, 0.13mm, 0.14mm, 0.15mm, 0.16mm, 0.17mm, 0.18mm, 0.19mm or 0.20mm, and the distance d4 between them ...3mm, 0.14mm, 0.15mm, 0.16mm, 0.17mm, 0.18mm, 0.19mm or 0.20mm, and the distance d4 between them is 0.13mm, 0.14mm, 0.15mm, 0.16mm, 0.17mm, 0.18mm, 0.19mm or 0.20mm, and the distance d4 between them is 0.13mm, 0.14mm, 0.15mm, 0.16mm,

[0113] By controlling the distance between the outer wall of the second through hole structure 121 and the hole wall of the through hole 21 within the range of 0.10mm-0.20mm, it can be ensured that the second burr protrusion 222 will not be covered or blocked by the second tooling plate 12, so that the second burr protrusion 222 can be removed. At the same time, it can also avoid excessive exposure of the battery cover plate 200, thereby reducing the risk of wear, scratches and damage to the battery cover plate 200 caused by the abrasive water jet, and ensuring the structural integrity and aesthetics of the battery cover plate 200.

[0114] In this application, the battery cover 200 has a third surface 20a and a fourth surface 20b opposite each other in the thickness direction f3. When the first burr protrusion 221 and the second burr protrusion 222 are present simultaneously, the first burr protrusion 221 and the second burr protrusion 222 are usually located on two opposite surfaces of the battery cover 200 in the thickness direction f3, that is, one of the first burr protrusion 221 and the second burr protrusion 222 is disposed on the third surface 20a, and the other of the first burr protrusion 221 and the second burr protrusion 222 is disposed on the fourth surface 20b. For example, the first burr protrusion 221 is disposed on the third surface 20a. On the third surface 20a, the second burr protrusion 222 is disposed on the fourth surface 20b. When removing the first burr protrusion 221, the third surface 20a and the first burr protrusion 221 are positioned away from the first tooling plate 11 and towards the second tooling plate 12, allowing the abrasive water jet to act on the first burr protrusion 221. However, at this time, the fourth surface 20b and the second burr protrusion 222 are positioned towards the second tooling plate 12, preventing the abrasive water jet from acting on the second burr protrusion 222. Therefore, the battery cover 200 needs to be flipped so that the fourth surface 20b and the second burr protrusion 222 are positioned away from the first tooling plate 11 and towards the second tooling plate 12, allowing the abrasive water jet to act on the second burr protrusion 222 and achieve the purpose of removing the second burr protrusion 222.

[0115] In some embodiments, such as Figure 6 As shown, the third surface 20a of the battery cover 200 is provided with an annular protrusion 23, wherein the terminal hole 21a is located in the hollow part of the annular protrusion 23. When removing the first burr protrusion 221, the third surface 20a, the first burr protrusion 221, and the annular protrusion 23 are all set away from the first tooling plate 11 and towards the second tooling plate 12. The second tooling plate 12 covers the third surface 20a of the battery cover 200, and the annular protrusion 23 is embedded in the second sub-through hole 1211. Thus, the mutual cooperation of the annular protrusion 23 and the second sub-through hole 1211 can play a positioning and limiting effect on the assembly of the second tooling plate 12.

[0116] In some embodiments, such as Figure 10 and Figure 12As shown, the first tooling plate 11 is provided with an annular receiving groove 113, which is located in the installation space 111. When removing the second burr protrusion 222, the fourth surface 20b and the second burr protrusion 222 are positioned away from the first tooling plate 11 and towards the second tooling plate 12. The third surface 20a and the annular protrusion 23 are positioned towards the first tooling plate 11 and away from the second tooling plate 12. When the battery cover 200 is installed in the installation space 111, the annular receiving groove 113 is used to accommodate the annular protrusion 23. That is, the annular protrusion 23 is embedded in the annular receiving groove 113. Thus, the mutual cooperation between the annular protrusion 23 and the annular receiving groove 113 can play a positioning and limiting effect on the assembly of the battery cover 200.

[0117] Furthermore, in the thickness direction f3, the depth of the annular receiving groove 113 is greater than the height of the annular protrusion 23, and / or, the inner diameter of the annular receiving groove 113 is smaller than the inner diameter of the annular protrusion 23, and the outer diameter of the annular receiving groove 113 is greater than the outer diameter of the annular protrusion 23. By making the depth of the annular receiving groove 113 greater than the height of the annular protrusion 23, it is possible to prevent damage to the annular protrusion 23; by making the inner diameter of the annular receiving groove 113 smaller than the inner diameter of the annular protrusion 23, and the outer diameter of the annular receiving groove 113 greater than the outer diameter of the annular protrusion 23, it is possible to avoid friction or even collision between the annular protrusion and the hole wall of the annular receiving groove 113, thereby preventing the risk of scraping out metal wires.

[0118] In some embodiments, such as Figure 10 and Figure 12 As shown, the fourth surface 20b is provided with a first receiving groove 24, wherein the first receiving groove 24 is connected to the terminal hole 21a. The first sub-burr protrusion 222a of the second burr protrusion 222 is formed on the bottom surface of the first receiving groove 24. The second tooling plate 12 is provided with a first extension protrusion 122 protruding from the surface facing the first tooling plate 11, wherein the second sub-through hole 1211 extends to penetrate the first extension protrusion 122. When removing the second burr protrusion 222, the fourth surface 20b, the second burr protrusion 222 and the first receiving groove 24 are all positioned away from the first tooling plate 11 and facing the second tooling plate 12. The second tooling plate 12 covers the fourth surface 20b of the battery cover plate 200. The first extension protrusion 122 is embedded in the first receiving groove 24. Thus, the first extension protrusion 122 and the first receiving groove 24 can be used to achieve a positioning and limiting effect for the assembly of the second tooling plate 12.

[0119] Furthermore, the radial dimension of the first extending protrusion 122 is smaller than the radial dimension of the first receiving groove 24, and / or, in the thickness direction f3, the height of the first extending protrusion 122 is smaller than the depth of the first receiving groove 24. By making the radial dimension of the first extending protrusion 122 smaller than the radial dimension of the first receiving groove 24, friction or even collision between the first extending protrusion 122 and the hole wall of the first receiving groove 24 can be avoided, thus preventing the risk of scraping out metal wires; since the thickness of the battery cover 200 portion where the first receiving groove 24 is located is relatively thin, by making the height of the first extending protrusion 122 smaller than the depth of the first receiving groove 24, it is possible to prevent the first extending protrusion 122 from causing pressure damage to the battery cover 200.

[0120] In some embodiments, such as Figure 11 and Figure 12 As shown, the fourth surface 20b of the battery cover 200 also has a second extending protrusion 25, wherein the injection hole 21b extends through the second extending protrusion 25, and the second sub-burr protrusion 222b of the second burr protrusion 222 is formed on the second extending protrusion 25. The surface of the second tooling plate 12 facing the first tooling plate 11 is provided with a second receiving groove 123, which communicates with the fourth sub-through hole 1212. When removing the second burr protrusion 222, the fourth surface 20b, The second burr protrusion 222 and the second extension protrusion 25 are both disposed away from the first tooling plate 11 and toward the second tooling plate 12. The second tooling plate 12 covers the fourth surface 20b of the battery cover plate 200. The second receiving groove 123 is used to receive the second extension protrusion 25, that is, the second extension protrusion 25 is embedded in the second receiving groove 123. Thus, the mutual cooperation between the second extension protrusion 25 and the second receiving groove 123 can play a positioning and limiting effect on the assembly of the second tooling plate 12.

[0121] Furthermore, in the thickness direction f3, the depth of the second receiving groove 123 is greater than the height of the second extending protrusion 25, and / or, the radial dimension of the second receiving groove 123 is greater than the radial dimension of the second extending protrusion 25. By making the depth of the second receiving groove 123 greater than the height of the second extending protrusion 25, it is possible to prevent the second tooling plate 12 from damaging the second extending protrusion 25; by making the radial dimension of the second receiving groove 123 greater than the radial dimension of the second extending protrusion 25, it is possible to avoid friction or even collision between the hole walls of the second extending protrusion 25 and the second receiving groove 123, thereby preventing the risk of scraping out metal wires.

[0122] In some embodiments, the first burr protrusion of the burr protrusion structure is located at the outer periphery of the battery cover plate, and the first burr protrusion of the burr protrusion structure extends along the thickness direction f3; the outer periphery of the second tooling plate 12 includes a first peripheral side 12a and a second peripheral side 12b connected together. In the thickness direction f3, the first peripheral side 12a is closer to the first tooling plate 11 than the second peripheral side 12b, and the first peripheral side 12a extends along the thickness direction f3. The second peripheral side 12b is inclined in the thickness direction f3 from its connection with the first peripheral side 12a toward the middle of the second tooling plate 12.

[0123] As can be seen, the first side surface 12a is a plane parallel to the thickness direction f3, and the second side surface 12b is an inclined plane set at an angle to the thickness direction f3. The inclined plane can better guide the abrasive water jet to the first burr protrusion 221 so as to act on the first burr protrusion 221. The plane can ensure that the flow direction of the abrasive water jet before contacting the first burr protrusion 221 is extended along the thickness direction f3, opposite to the protrusion direction of the first burr protrusion 221, thereby effectively removing the first burr protrusion and improving the deburring effect.

[0124] Optionally, the width b of the first side 12a in the thickness direction f3 is 0.5mm-3mm. For example, b = 0.5mm, 0.7mm, 1.0mm, 1.2mm, 1.5mm, 1.8mm, 2.0mm, 2.3mm, 2.5mm, 2.7mm, 2.9mm or 3mm, etc.

[0125] By controlling the width b of the first circumferential side 12a in the thickness direction f3 within the range of 0.5mm-3mm, it can be ensured that the flow direction of the abrasive water jet before contacting the first burr protrusion 221 extends along the thickness direction f3, opposite to the protrusion direction of the first burr protrusion 221, thereby effectively removing the first burr protrusion 221 and improving the deburring effect; at the same time, it can also prevent the second circumferential side 12b from being too small, so as to ensure the guiding effect of the second circumferential side 12b.

[0126] In some embodiments, such as Figure 12 and Figure 13 As shown, the battery cover 200 has a first axis of symmetry O1 and a second axis of symmetry O2. The liquid injection hole 21b is symmetrically arranged about the first axis of symmetry O1. There are two third sub-through holes 1122 and two fourth sub-through holes 1212. The two third sub-through holes 1122 are arranged at intervals along the first axis of symmetry O1 and are symmetrically arranged about the second axis of symmetry O2. The two fourth sub-through holes 1212 are arranged at intervals along the first axis of symmetry O1 and are symmetrically arranged about the second axis of symmetry O2.

[0127] With this configuration, when the battery cover 200 is installed into the installation space 111, regardless of how... Figure 13 As shown, the injection hole 21b is closer to the left side of the first tooling plate 11, or as... Figure 14 As shown, the injection hole 21b is closer to the right side of the first tooling plate 11, and each of them has a third sub-through hole 1122 and a fourth sub-through hole 1212 that are connected to the injection hole 21b. This allows the second sub-burr protrusion 222b around the injection hole 21b to be removed by abrasive water jet, and at the same time, when installing the battery cover 200, there is no need to pay attention to the left and right direction. This has a good installation error prevention effect and makes the installation of the battery cover 200 more flexible and convenient.

[0128] In some embodiments, the first tooling plate 11 is further provided with a plurality of third through-hole structures 114 extending along the thickness direction f3. Providing a plurality of third through-hole structures 114 not only facilitates better discharge of the abrasive water jet, but also reduces the overall weight of the first tooling plate 11, achieving a lightweight design.

[0129] In some embodiments, such as Figure 14 As shown, a plurality of limiting protrusions 115 are provided on the first surface 11a of the first tooling plate 11, such as two, three, four, five, six, seven, eight, nine or ten, etc. The plurality of limiting protrusions 115 are arranged at intervals along the circumference of the first tooling plate 11, and the aforementioned installation space 111 is formed between the plurality of limiting protrusions 115 and the first surface 11a.

[0130] In the above solution, it is equivalent to removing part of the material of the first tooling plate 11 to form multiple spaced limiting protrusions 115, thereby reducing the overall weight of the first tooling plate 11 and achieving a lightweight design.

[0131] Optionally, the limiting protrusion 115 faces the first surface 115a of the second tooling plate 12, and the limiting protrusion 115 also has a second surface 115b located in the mounting space 111. A chamfer 115c, such as a bevel or rounded corner, is provided at the connection between the first surface 115a and the second surface 115b to facilitate the quick placement of the battery cover in the mounting space 111.

[0132] As an optional implementation method, such as Figure 14As shown, a first connecting protrusion 116 is provided in the first sub-through hole 1121, and the first connecting protrusion 116 has a first connecting hole 1161 extending along the thickness direction f3. A second connecting protrusion 124 is provided in the second sub-through hole 1211, and the second connecting protrusion 124 has a second connecting hole 1241 extending along the thickness direction f3. The second connecting protrusion 124 is located on the side of the first connecting protrusion 116 facing away from the second surface. The second connecting hole 1241 and the first connecting hole 1161 are arranged opposite to each other and are connected and fixed by a first threaded locking member to realize the connection and fixation of the second tooling plate and the first tooling plate, thereby fixing the battery cover between the first tooling plate and the second tooling plate. The first threaded locking member can be a screw or bolt, etc.

[0133] Thus, the second tooling plate 12 can be fixedly connected to the first tooling plate 11 by screws, bolts, or other first threaded locking components, making the installation simple, stable, and reliable, and also convenient for disassembly. In addition, since the second connecting protrusion 124 is located inside the second sub-through hole 1211, the overall structure of the second tooling plate 12 can be made smaller, facilitating the miniaturization design of the second tooling plate 12.

[0134] In this embodiment, the first connecting protrusion 116 has a first end 116a and a second end 116b opposite each other in a first preset direction f4. The first end 116a and the second end 116b are respectively connected to the hole wall of the first sub-through hole 1121 to divide the first sub-through hole 1121 into two through hole portions 1121a, and each through hole portion 1121a is connected to the second sub-through hole 1211. The second connecting protrusion 124 has a third end 124a and a fourth end 124b opposite each other in a second preset direction f5. The third end 124a is connected to the hole wall of the second sub-through hole 1211, and the fourth end 124b is spaced apart from the hole wall of the second sub-through hole 1211.

[0135] Since the first connecting protrusion 116 needs to support the second connecting protrusion 124, there are certain requirements for the load-bearing capacity of the first connecting protrusion 116. Therefore, connecting both ends of the first connecting protrusion 116 to the wall of the first sub-through hole 1121 can improve the connection stability of the first connecting protrusion 116 within the first sub-through hole 1121 and better support the second connecting protrusion 124. Since the second connecting protrusion 124 is set on the first connecting protrusion 116, the second connecting protrusion 124 usually does not need to support other components, and the load-bearing capacity requirement for the second connecting protrusion 124 is not high. Therefore, connecting one end of the second connecting protrusion 124 to the wall of the second sub-through hole 1211 and not connecting the other end to the wall of the second sub-through hole 1211 can provide a connection position for the connection between the second tooling plate 12 and the first tooling plate 11. At the same time, reducing the size of the second connecting protrusion 124 reduces the overall weight of the second tooling plate 12, thereby achieving a lightweight design of the second tooling plate 12.

[0136] Optionally, the first preset direction f4 and the second preset direction f5 can be parallel or intersecting. Preferably, the first preset direction f4 and the second preset direction f5 are parallel. For example, both the first preset direction f4 and the second preset direction f5 extend along the length direction f1, or both extend along the width direction f2. Figure 14 In the middle, the first preset direction f4 and the second preset direction f5 are parallel, and both the first preset direction f4 and the second preset direction f5 extend along the length direction f1.

[0137] When the first preset direction f4 and the second preset direction f5 are parallel, the extension directions of the first connecting protrusion 116 and the second connecting protrusion 124 are the same, which allows the entire second connecting protrusion 124 to be placed on the first connecting protrusion 116, increasing the contact area between the second connecting protrusion 124 and the first connecting protrusion 116, and improving the stability of the second connecting protrusion 124 on the first connecting protrusion 116. This is beneficial to improving the connection stability between the second tooling plate 12 and the first tooling plate 11. At the same time, it can also reduce the obstruction of the first sub-through hole 1121, making it easier to discharge the abrasive water jet.

[0138] It should be noted that, as Figure 13As shown, the first sub-through hole 1121 can be arranged opposite to the terminal hole 21a, and the second sub-through hole 1211 can be arranged opposite to the terminal hole 21a, so that the first threaded locking member can pass through the first connecting hole 1161 and the second connecting hole 1241 to achieve the connection and fixation of the two. Of course, it can be understood that in other embodiments, the first sub-through hole 1121 can be arranged opposite to the explosion-proof hole 21c, and the second sub-through hole 1211 can be arranged opposite to the explosion-proof hole 21c, so as to avoid the first threaded locking member being blocked by the battery cover, so that the first threaded locking member can pass through the first connecting hole 1161 and the second connecting hole 1241 to achieve the connection and fixation of the two.

[0139] When the first sub-through hole 1121 is positioned opposite to the terminal hole 21a, and the second sub-through hole 1211 is positioned opposite to the terminal hole 21a, some burr protrusions at the edge of the terminal hole 21a will be blocked by the second connecting protrusion 124. That is, some of the first sub-burr protrusions will be blocked by the second connecting protrusion 124. Therefore, when the first tooling plate 11 and the second tooling plate 12 are fixedly connected by the first threaded locking member, this is usually used in the process of removing burr protrusions at the outer periphery of the battery cover. Of course, it is understandable that in other embodiments, it can also be used in the process of removing burr protrusions at the edge of the injection hole 21b and the edge of the explosion-proof hole 21c.

[0140] As another alternative implementation method, such as Figure 15 As shown, the limiting protrusion 115 is provided with a third connecting hole 1151 extending along the thickness direction f3. A third connecting protrusion 125 protrudes from the outer peripheral side of the second tooling plate 12. The third connecting protrusion 125 is provided with a fourth connecting hole 1251 extending along the thickness direction f3. The third connecting protrusion 125 is located on the side of the limiting protrusion 115 facing away from the first tooling plate 11. The fourth connecting hole 1251 and the third connecting hole 1151 are arranged opposite each other and connected and fixed by a second threaded locking member to achieve the connection and fixation of the second tooling plate and the first tooling plate, thereby fixing the battery cover between the first tooling plate and the second tooling plate. The second threaded locking member can be a screw or similar device.

[0141] As can be seen, the limiting protrusion 115 not only restricts the position of the battery cover on the first tooling plate 11, but also provides a connection position for the connection between the second tooling plate 12 and the first tooling plate 11. In addition, the second tooling plate 12 is fixedly connected to the first tooling plate 11 by screws, bolts and other second threaded locking parts, which makes the installation simple, stable and reliable, and easy to disassemble.

[0142] It should be noted that the limiting protrusion 115 is located at the outer periphery of the battery cover, and the third connecting protrusion 125 is located at the outer periphery of the battery cover. When the third connecting protrusion and the limiting protrusion are connected and fixed by the second threaded locking member, some burr protrusions at the outer periphery of the battery cover will be blocked by the third connecting protrusion 125. That is, some of the first burr protrusions will be blocked by the third connecting protrusion 125. Therefore, when the first tooling plate 11 and the second tooling plate 12 are fixedly connected by the above-mentioned second threaded locking member, it is usually used in the process of removing burr protrusions at the edge of the through holes such as the pole hole 21a, the liquid injection hole 21b, and the explosion-proof hole 21c.

[0143] In summary, when removing the first burr protrusion, a second tooling plate 12 with a second connecting protrusion 124 inside the second sub-through hole is usually used; while when removing the first sub-burr protrusion, the second sub-burr protrusion, and the third sub-burr protrusion, etc., the second burr protrusion 124 is removed, a second tooling plate 12 with a third connecting protrusion 125 is used.

[0144] In some embodiments, the plurality of limiting protrusions 115 include three first sub-limiting protrusions 115d and three second sub-limiting protrusions 115e, wherein each first sub-limiting protrusion 115d and each second sub-limiting protrusion 115e is provided with the aforementioned third connecting hole 1151. The three first sub-limiting protrusions 115d are located on one side of the first tooling plate 11 in the width direction f2, and the three second sub-limiting protrusions 115e are located on the other side of the first tooling plate 11 in the width direction f2. The three first sub-limiting protrusions 115d are evenly arranged along the length direction f1, and the three first sub-limiting protrusions 115d and the three second sub-limiting protrusions 115e are symmetrically arranged about the length direction f1.

[0145] The third connecting protrusion 125 includes a first sub-connecting protrusion 125a and two second sub-connecting protrusions 125b. The first sub-connecting protrusion 125a and each of the second sub-connecting protrusions 125b are provided with the aforementioned fourth connecting hole 1251. The first sub-connecting protrusion 125a is located on one side of the second tooling plate 12 in the width direction f2, and the two second sub-connecting protrusions 125b are located on the other side of the second tooling plate 12 in the width direction f2. The two second sub-connecting protrusions 125b are symmetrically arranged about the first sub-connecting protrusion 125a.

[0146] With this configuration, when assembling the second tooling plate 12 onto the first tooling plate 11, regardless of... Figure 15 As shown, a first sub-connection protrusion is located on the front side of the second tooling plate 12, or as... Figure 16As shown, two second sub-connecting protrusions are located on the front side of the second tooling plate 12. Each sub-connecting protrusion has a fourth connecting hole 1251 that is connected to a corresponding third connecting hole 1151, so that the fourth connecting hole 1251 on each sub-connecting protrusion can be connected to the third connecting hole 1151 through a threaded locking member, thereby realizing the connection between the second tooling plate 12 and the first tooling plate 11. Therefore, when assembling the second tooling plate 12, there is no need to pay attention to the left and right direction, which has a good installation error prevention effect and makes the assembly of the second tooling plate 12 more flexible, convenient and quick.

[0147] In some embodiments, such as Figure 16 and Figure 17 As shown, the first tooling plate 11 is provided with a support protrusion 117 that protrudes toward the second tooling plate 12. The support protrusion 117 is located in the installation space 111 and is used to support the battery cover 200. The support protrusion 117 has a support surface 1171 that contacts the battery cover.

[0148] In one example, the outer periphery of the battery cover 200 protrudes beyond the outer periphery of the support surface 1171. Due to the presence of the support protrusion 117, the portion of the battery cover 200 protruding beyond the outer periphery of the support surface 1171 can be spaced apart from the first surface 11a, thereby facilitating clamping with a fixture or allowing the user to hold the portion of the battery cover 200 protruding beyond the outer periphery of the support surface 1171 and remove the battery cover 200 from the first tooling plate 11, making it easy to handle and manually unload.

[0149] In another exemplary embodiment, the outer periphery of the support protrusion 117 is provided with a notch 118, which is used to provide a protruding portion 20c of the battery cover 200 that protrudes beyond the outer periphery of the support surface 1171. Due to the presence of the support protrusion 117, the protruding portion 20c of the battery cover 200 protruding beyond the outer periphery of the support surface 1171 can be spaced apart from the first surface 11a, thereby facilitating clamping with a fixture or allowing the user to hold the protruding portion 20c of the battery cover 200 protruding beyond the outer periphery of the support surface 1171 and remove the battery cover 200 from the first tooling plate 11, making it easy to handle and manually unload.

[0150] For example, the battery cover 200 is a rectangular cover with two notches 118. The two notches 118 are located at a pair of opposite corners of the battery cover 200. The outer periphery of the battery cover 200 has two protruding parts 20c that protrude beyond the outer periphery of the support surface 1171. This makes it easier for the user to hold the two protruding parts 20c of the battery cover 200 with both hands and remove the battery cover 200 from the first tooling plate 11. This makes it easier to pick up and unload manually.

[0151] This application also provides a battery cover shaping device, which includes a worktable, a spray gun device, and a tooling structure as described in any of the above embodiments. The first tooling plate of the tooling structure is mounted on the worktable, the spray gun device is movably mounted on the worktable, and the spray gun device can move relative to the worktable along the circumferential direction of the exposed area for shaping the exposed area.

[0152] Specifically, the spray gun device has a mixing chamber, a first inlet, a second inlet, and an outlet connected to the mixing chamber. Abrasive enters the mixing chamber through the first inlet, and high-pressure water enters the mixing chamber through the second inlet. The high-pressure water and abrasive are mixed in the mixing chamber of the spray gun device to form a high-pressure abrasive water jet. The spray gun device can move circumferentially relative to the worktable along the exposed area, and the abrasive water jet can be sprayed through the outlet of the spray gun device to the exposed area of ​​the battery cover. By means of the high-speed collision between the abrasive particles and the exposed area, the local stress field on the battery cover is concentrated at high speed and changes rapidly, thus generating erosion and shearing, achieving the purpose of removing burrs and protruding structures, and realizing the deburring and shaping treatment of the exposed area.

[0153] During the aforementioned process, the second tooling plate covers and shields the battery cover, exposing only the exposed area with the burr-like protrusions. This ensures that the abrasive water jet can only act on the burr-like protrusions and the locations on the battery cover where the burr-like protrusions are located. This allows the abrasive water jet to impact and remove the burr-like protrusions while preventing it from acting on areas of the battery cover without burr-like protrusions. This reduces the risk of wear, scratches, or damage to the battery cover caused by the abrasive water jet, ensuring the structural integrity and aesthetics of the battery cover. Consequently, it helps ensure the sealing performance of the battery cover, improves the sealing effect, and ultimately enhances the safety of battery use.

[0154] The circumferential movement of the spray gun device along the exposed area includes: the spray gun device moving along the outer periphery of the battery cover, and / or, the spray gun device moving along the edge of the through hole.

[0155] The abrasive mentioned above can be 200-mesh garnet sand, which can be ground from alumina raw materials. It features high hardness, high temperature resistance, stable chemical properties, uniform particle size, and high grinding efficiency. Using 200-mesh garnet sand, which can be ground from alumina raw materials, can more effectively remove burrs and protrusions on the battery cover, further improving the product quality of the battery cover.

[0156] Please see Figure 18 This application also provides a shaping method using the battery cover shaping equipment described in any of the above embodiments, the shaping method comprising:

[0157] S11. Install the battery cover into the mounting space of the first tooling plate.

[0158] S12. Cover the battery cover with the second tooling plate, and make the battery cover have an exposed area that is exposed to the second tooling plate.

[0159] S13, The second tooling plate and the first tooling plate are connected and fixed.

[0160] In this step, the second tooling plate and the first tooling plate can be connected and fixed by means of threaded connection, snap-fit ​​connection, magnetic connection, etc., so as to fix the battery cover between the first tooling plate and the second tooling plate.

[0161] S14. Install the first tooling plate onto the workbench.

[0162] It should be noted that step S11 can be performed before step S14, or step S14 can be performed before step S11. The specific method can be determined according to the actual situation, and this application embodiment does not make specific limitations.

[0163] S15. The spray gun device moves circumferentially relative to the worktable along the exposed area and sprays abrasive water jets into the exposed area to shape it.

[0164] The spray gun device used in this step has a high-pressure abrasive water jet mixed in its mixing chamber. The spray gun device can move circumferentially relative to the worktable along the exposed area, and the abrasive water jet can be sprayed onto the exposed area of ​​the battery cover through the spray gun device. By means of the high-speed collision between the abrasive particles and the exposed area, the local stress field on the battery cover is concentrated at high speed and changes rapidly, thereby generating erosion and shearing, achieving the purpose of removing burrs and protruding structures, and realizing the deburring and shaping treatment of the exposed area.

[0165] During the aforementioned process, the second tooling plate covers and shields the battery cover, exposing only the exposed area with the burr-like protrusions. This ensures that the abrasive water jet can only act on the burr-like protrusions and the locations on the battery cover where the burr-like protrusions are located. This allows the abrasive water jet to impact and remove the burr-like protrusions while preventing it from acting on areas of the battery cover without burr-like protrusions. This reduces the risk of wear, scratches, or damage to the battery cover caused by the abrasive water jet, ensuring the structural integrity and aesthetics of the battery cover. Consequently, it helps ensure the sealing performance of the battery cover, improves the sealing effect, and ultimately enhances the safety of battery use.

[0166] The aforementioned high-pressure abrasive waterjet is mainly formed by mixing high-pressure water and abrasive in the mixing chamber of the spray gun device. The abrasive can be 200-mesh garnet sand, which is ground from alumina raw materials and features high hardness, high temperature resistance, stable chemical properties, uniform particle size, and high grinding efficiency. Using 200-mesh garnet sand, which can be ground from alumina raw materials, can more effectively remove burrs and protrusions on the battery cover, further improving the product quality of the battery cover.

[0167] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0168] Furthermore, the embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the content of this specification should not be construed as a limitation of this application, and the protection scope of this application should be determined by the appended claims.

Claims

1. A tooling structure for installing a battery cover plate, characterized by, The tooling structure (100) has a thickness direction (f3), and the tooling structure (100) includes: A first tooling plate (11) having a first surface (11a) and a second surface (11b) opposite each other along the thickness direction (f3), wherein a mounting space (111) is provided on the first surface (11a) for mounting the battery cover plate (200); and, A second tooling plate (12) is located on the side of the first surface (11a) of the first tooling plate (11), and the second tooling plate (12) is connected to the first tooling plate (11). The projection of the second tooling plate (12) on the first tooling plate (11) is at least partially located in the mounting space (111). The second tooling plate (12) is used to cover the battery cover plate (200), and the battery cover plate (200) has an exposed area exposed to the second tooling plate (12). The first tooling plate (11) is provided with a first sub-through hole (1121) extending along the thickness direction (f3). The first sub-through hole (1121) is located in the installation space (111), and a first connecting protrusion (116) is provided in the first sub-through hole (1121). The first connecting protrusion (116) is provided with a first connecting hole (1161) whose axis extends along the thickness direction (f3). The second tooling plate (12) is provided with a second sub-through hole (1211) that extends along the thickness direction (f3). The second sub-through hole (1211) is disposed opposite to and communicates with the first sub-through hole (1121). A second connecting protrusion (124) is provided in the second sub-through hole (1211). The second connecting protrusion (124) is provided with a second connecting hole (1241) whose axis extends along the thickness direction (f3). The second connecting protrusion (124) is disposed on the side of the first connecting protrusion (116) facing away from the second surface (11b). The second connecting hole (1241) and the first connecting hole (1161) are disposed opposite to each other and are connected and fixed by a first threaded locking member.

2. The tooling structure of claim 1, wherein, The exposed area of ​​the battery cover (200) includes an outer peripheral edge located at the outer periphery of the battery cover (200), the projection of the second tooling plate (12) onto the first tooling plate (11) is located in the mounting space (111), and the outer peripheral edge protrudes outward from the outer periphery of the second tooling plate (12); and / or, The battery cover (200) is provided with a through hole (21) extending along the thickness direction (f3). The through hole (21) includes at least one of a terminal hole (21a), an injection hole (21b), and an explosion-proof hole (21c). The exposed area of ​​the battery cover (200) includes the hole edge located at the periphery of the through hole (21). The first tooling plate (11) is provided with a first through hole structure (112) extending along the thickness direction (f3). The first through hole structure (112) is located in the installation space (111) and is disposed opposite to the through hole (21). The second tooling plate (12) is provided with a second through hole structure (121) extending along the thickness direction (f3). The second through hole structure (121) is disposed opposite to the through hole (21). The projection of the hole edge on the second tooling plate (12) is located in the second through hole structure (121).

3. The tooling structure of claim 1, wherein, The first connecting protrusion (116) has a first end (116a) and a second end (116b) opposite each other in a first preset direction (f4). The first end (116a) and the second end (116b) are respectively connected to the hole wall of the first sub-through hole (1121) to divide the first sub-through hole (1121) into two through hole portions (1121a). Each of the through hole portions (1121a) is connected to the second sub-through hole (1211). The second connecting protrusion (124) has a third end (124a) and a fourth end (124b) opposite each other in a second preset direction (f5). The third end (124a) is connected to the hole wall of the second sub-through hole (1211), and the fourth end (124b) is spaced apart from the hole wall of the second sub-through hole (1211). The first preset direction (f4) and the second preset direction (f5) are parallel or intersecting.

4. The tooling structure of claim 1, wherein, The outer peripheral side of the second tooling plate (12) includes a first peripheral side (12a) and a second peripheral side (12b) connected together. In the thickness direction (f3), the first peripheral side (12a) is closer to the first tooling plate (11) than the second peripheral side (12b), and the first peripheral side (12a) extends along the thickness direction (f3). In the thickness direction (f3), the second peripheral side (12b) is inclined in the direction from its connection with the first peripheral side (12a) toward the middle of the second tooling plate (12).

5. The tooling structure according to claim 4, characterized in that, The width of the first peripheral side (12a) in the thickness direction (f3) is 0.5mm-3mm.

6. The tooling structure according to claim 1, characterized in that, The first tooling plate (11) is also provided with a plurality of third through holes (114) that extend along the thickness direction (f3).

7. A tooling structure for installing a battery cover, characterized in that, The tooling structure (100) has a thickness direction (f3), and the tooling structure (100) includes: A first tooling plate (11) having a first surface (11a) and a second surface (11b) opposite each other along the thickness direction (f3), wherein a mounting space (111) is provided on the first surface (11a) for mounting the battery cover plate (200); and, A second tooling plate (12) is located on the side of the first surface (11a) of the first tooling plate (11), and the second tooling plate (12) is connected to the first tooling plate (11). The projection of the second tooling plate (12) on the first tooling plate (11) is at least partially located in the mounting space (111). The second tooling plate (12) is used to cover the battery cover plate (200), and the battery cover plate (200) has an exposed area exposed to the second tooling plate (12). The first surface (11a) is provided with a plurality of limiting protrusions (115), and the limiting protrusions (115) are provided with a third connecting hole (1151) whose axis extends along the thickness direction (f3). The outer peripheral side of the second tooling plate (12) is provided with a third connecting protrusion (125), and the third connecting protrusion (125) is provided with a fourth connecting hole (1251) whose axis extends along the thickness direction (f3). The third connecting protrusion (125) is located on the side of the limiting protrusion facing away from the first tooling plate (11). The fourth connecting hole (1251) and the third connecting hole (1151) are arranged opposite to each other and are connected and fixed by a second threaded locking member.

8. The tooling structure according to claim 7, characterized in that, The plurality of limiting protrusions (115) are arranged at intervals along the circumference of the first tooling plate (11), and the plurality of limiting protrusions (115) and the first surface (11a) form the mounting space (111).

9. The tooling structure according to claim 7, characterized in that, The tooling structure (100) also has a length direction (f1) and a width direction (f2); The plurality of limiting protrusions (115) include three first sub-limiting protrusions (115d) and three second sub-limiting protrusions (115e). Each first sub-limiting protrusion (115d) and each second sub-limiting protrusion (115e) is provided with the third connecting hole (1151). The three first sub-limiting protrusions (115d) are located on one side of the first tooling plate (11) in the width direction (f2), and the three second sub-limiting protrusions (115e) are located on the other side of the first tooling plate (11) in the width direction (f2). The three first sub-limiting protrusions (115d) are evenly arranged along the length direction (f1), and the three first sub-limiting protrusions (115d) and the three second sub-limiting protrusions (115e) are symmetrically arranged about the length direction (f1). The third connecting protrusion (125) includes a first sub-connecting protrusion (125a) and two second sub-connecting protrusions (125b). The first sub-connecting protrusion (125a) and each of the second sub-connecting protrusions (125b) are provided with the fourth connecting hole (1251). The first sub-connecting protrusion (125a) is located on one side of the second tooling plate (12) in the width direction (f2), and the two second sub-connecting protrusions (125b) are located on the other side of the second tooling plate (12) in the width direction (f2). The two second sub-connecting protrusions (125b) are symmetrically arranged about the first sub-connecting protrusion (125a).

10. The tooling structure according to claim 7, characterized in that, The first tooling plate (11) is provided with a support protrusion (117) protruding toward the second tooling plate (12). The support protrusion (117) is located in the installation space (111) and is used to support the battery cover (200). The support protrusion (117) has a support surface (1171) that contacts the battery cover (200). The outer periphery of the battery cover (200) protrudes beyond the outer periphery of the support surface (1171); and / or, The outer periphery of the support protrusion (117) is provided with a notch (118), the notch (118) is used to give the outer periphery of the battery cover (200) a protruding portion (20c) that protrudes beyond the outer periphery of the support surface (1171).

11. The tooling structure according to claim 7, characterized in that, The limiting protrusion (115) has a first surface (115a) facing the second tooling plate (12) and a second surface (115b) located in the mounting space (111), and a chamfer (115c) is provided at the connection between the first surface (115a) and the second surface (115b).

12. A battery cover shaping device, characterized in that, The battery cover shaping equipment includes a workbench, a spray gun device, and a tooling structure as described in any one of claims 1-11. The first tooling plate of the tooling structure is mounted on the workbench, the spray gun device is movably mounted on the workbench, and the spray gun device can move relative to the workbench along the circumference of the exposed area for shaping the exposed area.

13. A shaping method using the battery cover shaping equipment as described in claim 12, characterized in that, The plastic surgery method includes: The battery cover is installed into the mounting space of the first tooling plate; The second tooling plate is placed over the battery cover plate, and the battery cover plate has an exposed area that is exposed to the second tooling plate. The second tooling plate and the first tooling plate are connected and fixed together; The first tooling plate is mounted on the workbench; The spray gun device moves circumferentially relative to the worktable along the exposed area and sprays abrasive water jets into the exposed area to shape the exposed area.

Images