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

Abstract

The invention discloses a tool structure, a battery cover plate shaping device and a shaping method thereof.The tool structure is used for installing a battery cover plate and has the thickness direction, the tool structure comprises a first tool plate and a second tool plate, the first tool plate is provided with a first surface and a second surface which are opposite in the thickness direction, and the second tool plate is provided with a second surface; the first tool plate is provided with a first surface, the first surface is provided with an installation space for installing a battery cover plate, the second tool plate is located on the side where the first surface of the first tool plate is located, the second tool plate is connected with the first tool plate, at least part of the projection of the second tool plate on the first tool plate is located in the installation space, and the second tool plate is used for covering the battery cover plate; the battery cover plate is provided with an exposed area exposed out of the second tool plate and a burr protruding structure arranged on the exposed area in an exposed mode, so that abrasive water jet is allowed to only act on the burr protruding structure and the position, where the burr protruding structure is arranged, of the battery cover plate when the abrasive water jet is used for conducting deburring treatment on the battery cover plate, pertinence is good, and the deburring efficiency is improved. And the battery cover plate can be protected.

Description

Technical Field

[0001] The present application relates to the technical field of battery processing, and particularly relates to a tooling structure, a battery cover shaping device and a shaping method thereof. Background Art

[0002] Generally, a battery in the related art includes a housing, a bare battery cell and a cover plate. Among them, the bare battery cell is arranged in the housing, and the cover plate is connected to the housing to seal the bare battery cell in the housing.

[0003] Currently, the cover plates in the industry are usually manufactured by applying pressure to materials on a press using stamping dies. However, limited by the current technical level of stamping processing technology, burrs will inevitably be generated in the products manufactured by stamping processing. Therefore, the cover plates usually have burrs. Therefore, it is usually necessary to deburr the cover plates. However, in the process of deburring the cover plates in the related art, the cover plates are easily worn, scratched and damaged, which easily causes air leakage and liquid leakage, and further affects the use safety of the batteries. Summary of the Invention

[0004] The embodiments of the present application disclose a tooling structure, a battery cover shaping device and a shaping method thereof, which can effectively protect the battery cover when performing deburring and shaping treatment on the battery cover, so as to ensure the aesthetics of the battery cover, and at the same time avoid scratching and damaging the battery cover, so as to ensure the sealing performance of the battery cover, improve the sealing effect of the battery cover, and thus improve the use safety of the battery.

[0005] To achieve the above object, in a first aspect, the present application discloses a tooling structure for installing a battery cover. The tooling structure has a thickness direction, and the tooling structure includes:

[0006] A first tooling plate having a first surface and a second surface opposite to each other in the thickness direction. An installation space is provided on the first surface for installing the battery cover; and,

[0007] A second tooling plate located on the side where the first surface of the first tooling plate is located, and the second tooling plate is connected to the first tooling plate. The projection of the second tooling plate on the first tooling plate is at least partially located in the installation space. The second tooling plate is used to cover the battery cover. The battery cover has an exposed area exposed outside the second tooling plate, so that the burr convex structure formed on the exposed area can be exposed outside the second tooling plate and is not blocked by the second tooling plate. When using abrasive water jet to perform deburring treatment on the battery cover, the abrasive water jet is allowed to act only on the burr convex structure and the position of the battery cover where the burr convex structure is provided.

[0008] In the end cover assembly provided by the present application, it includes a first tooling plate and a second tooling plate. By setting an installation space on the first tooling plate to install the battery cover plate, and using the second tooling plate to cover the battery cover plate, and making the battery cover plate have an exposed area exposed outside the second tooling plate, so as to expose the burr convex structure formed on the exposed area. That is, the burr convex structure on the battery cover plate will not be blocked by the second tooling plate. When deburring the battery cover plate by abrasive water jet, only allow the abrasive water jet to act on the burr convex structure and the position of the battery cover plate where the burr convex structure is set, so that the abrasive water jet can impact and remove the burr convex structure, and at the same time prevent the abrasive water jet from acting on the position of the battery cover plate where there is no burr convex structure, so as to reduce the risk of scratching and damaging the battery cover plate by the abrasive water jet, ensure the structural integrity and aesthetics of the battery cover plate, thereby being beneficial to ensuring the sealing performance of the battery cover plate, improving the sealing effect of the battery cover plate, and further improving the use safety of the battery.

[0009] As an alternative implementation manner, in the embodiment of the first aspect of the present application, the exposed area of the battery cover plate includes an outer peripheral side edge located at the outer peripheral edge of the battery cover plate. The projection of the second tooling plate on the first tooling plate is located in the installation space, and the outer peripheral side edge protrudes out of the outer peripheral edge of the second tooling plate; and / or,

[0010] The battery cover plate is provided with a through hole penetrating along the thickness direction. The through hole includes at least one of a pole hole, a liquid injection hole, and an explosion-proof hole. The exposed area of the battery cover plate includes a hole edge located at the periphery of the through hole. The first tooling plate is provided with a first through hole structure penetrating 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 penetrating 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 can be seen that the tooling structure in the present application can be used in the shaping equipment for the burr convex structure at the outer peripheral edge of the battery cover plate, and / or, can also be used in the shaping equipment for the burr convex structure at the periphery of through holes such as the pole hole, the liquid injection hole, and the explosion-proof hole on the battery cover plate. The application range is relatively wide and the flexibility is relatively high.

[0012] As an alternative implementation manner, in the embodiment of the first aspect of the present application, the first tooling plate is provided with a first sub-through hole penetrating along the thickness direction. The first sub-through hole is located in the installation space, and a first connecting protrusion is arranged in the first sub-through hole. The first connecting protrusion is 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 penetrating along the thickness direction. The second sub-through hole is disposed opposite to and communicated 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 disposed on a side of the first connecting protrusion facing away from the second surface. The second connecting hole and the first connecting hole are disposed 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 through a first threaded locking member such as a screw or a bolt. The installation method is simple, stable and reliable, and it is convenient to disassemble. In addition, since the second connecting protrusion is located in the second sub-through hole, the overall structure of the second tooling plate can be made smaller, which is convenient for realizing the miniaturized design of the second tooling plate.

[0015] As an optional implementation manner, in the embodiment of the first aspect of the present 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 are respectively connected to the wall surface of the first sub-through hole to divide the first sub-through hole into two through-hole parts, and each through-hole part is communicated 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 wall surface of the second sub-through hole, and the fourth end is spaced from the wall surface of the second sub-through hole.

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

[0018] Since the first connecting protrusion needs to bear the second connecting protrusion, there are certain requirements for the load-bearing capacity of the first connecting protrusion. Therefore, connecting both ends of the first connecting protrusion to the wall surface of the first sub-through hole can improve the connection stability of the first connecting protrusion in the first sub-through hole and can better bear the second connecting protrusion. And since the second connecting protrusion is disposed on the first connecting protrusion, the second connecting protrusion usually does not need to bear other components, and the requirements for the load-bearing capacity of the second connecting protrusion are not high. Therefore, connecting one end of the second connecting protrusion to the wall surface of the second sub-through hole and the other end not to the wall surface of the second sub-through hole can provide a connection position for the connection between the second tooling plate and the first tooling plate, and at the same time reduce the size of the second connecting protrusion and reduce the overall weight of the second tooling plate to achieve the lightweight design of 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, so that the entire second connecting protrusion can be placed on the first connecting protrusion, thereby increasing the contact area between the second connecting protrusion and the first connecting protrusion and improving the stability of the second connecting protrusion on the first connecting protrusion, thereby facilitating improving 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 the present application, a plurality of limiting protrusions are protruding from the first surface, and the plurality of limiting protrusions are arranged at intervals along the circumference of the first tooling plate, and the installation space is formed between the plurality of limiting protrusions and the first surface.

[0021] Such an arrangement is equivalent to removing part of the material of the first tooling plate to form a plurality of spaced limiting protrusions, thereby reducing the overall weight of the first tooling plate and achieving a lightweight design.

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

[0023] It can be seen that the limiting protrusion can not only limit the position of the battery cover on the first tooling plate, but also provide a connection position for the second tooling plate and the first tooling plate. In addition, the second tooling plate is fixedly connected to the first tooling plate by a second threaded locking member such as a screw or bolt, and the installation method is simple, stable and reliable; and it is easy to disassemble.

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

[0025] The plurality of limiting protrusions include three first sub-limiting protrusions and three second sub-limiting protrusions, each of the first sub-limiting protrusions and each of the second sub-limiting protrusions 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, the three second sub-limiting protrusions are located on the other side of the first tooling plate in the width direction, and 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 connection protrusion includes a first sub-connection protrusion and two second sub-connection protrusions. The first sub-connection protrusion and each of the second sub-connection protrusions are provided with the fourth connection holes. The first sub-connection protrusion is located on one side of the second tooling plate in the width direction, and the two second sub-connection protrusions are located on the other side of the second tooling plate in the width direction, and the two second sub-connection protrusions are symmetrically arranged with respect to the first sub-connection protrusion.

[0027] With such a setting, when assembling the second tooling plate to the first tooling plate, whether one first sub-connection protrusion is located on the front side of the second tooling plate or two second sub-connection protrusions are located on the front side of the second tooling plate, the fourth connection hole on each sub-connection protrusion has a corresponding third connection hole to communicate with, so that the fourth connection hole on each sub-connection protrusion can be connected to the third connection hole through a threaded locking member, thereby realizing the connection between the second tooling plate and the first tooling plate. Therefore, when assembling the second tooling plate, there is no need to pay attention to the left and right directions, which has a good anti-fooling effect on installation, can make the assembly of the second tooling plate more flexible and convenient, and can be quickly assembled.

[0028] As an optional implementation manner, in the embodiment of the first aspect of the present application, the first tooling plate is provided with a support protrusion protruding towards the second tooling plate. The support protrusion is located in the installation space 111, and the support protrusion is used to support the battery cover plate. Wherein, the support protrusion has a support surface in contact with the battery cover plate;

[0029] The outer peripheral edge of the battery cover plate protrudes outside the outer peripheral edge of the support surface; and / or,

[0030] The outer peripheral edge of the support protrusion is provided with a notch, and the notch is used to enable the outer peripheral edge of the battery cover plate to have a protruding portion protruding outside the outer peripheral edge of the support surface.

[0031] Due to the existence of the support protrusion, the protruding portion of the battery cover plate protruding outside the outer peripheral edge of the support surface can be spaced apart from the first surface, so as to facilitate clamping by a fixture or the user to hold the protruding portion of the battery cover plate protruding outside the outer peripheral edge of the support surface, and remove the battery cover plate from the first tooling plate, which is convenient for taking and convenient for manual unloading.

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

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

[0034] It can be seen that the first peripheral side surface is a plane parallel to the thickness direction, and the second peripheral side surface is an inclined plane arranged at an angle with the thickness direction. Among them, the arrangement of the inclined plane can better guide the abrasive water jet to the position of the burr convex structure located at the periphery of the battery cover plate to act on the burr convex structure, while the arrangement of the plane can ensure that the flow direction of the abrasive water jet is along the thickness direction before contacting the burr convex structure located at the periphery of the battery cover plate, which is opposite to the convex direction of the burr convex structure located at the periphery of the battery cover plate, so as to effectively remove the burr convex structure located at the periphery of the battery cover plate and improve the deburring effect.

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

[0036] Controlling the width of the first peripheral side surface in the thickness direction within the range of 0.5 mm - 3 mm can not only ensure that the flow direction of the abrasive water jet is along the thickness direction when contacting the burr convex structure located at the periphery of the battery cover plate, which is opposite to the convex direction of the burr convex structure located at the periphery of the battery cover plate, so as to effectively remove the burr convex structure located at the periphery of the battery cover plate and improve the deburring effect; but also avoid the second peripheral side surface being too small to ensure the diversion effect of the second peripheral side surface.

[0037] As an alternative implementation manner, in the embodiment of the first aspect of the present application, a plurality of third through-hole structures penetrating along the thickness direction are further provided on the first tooling plate. The arrangement of the plurality of third through-hole structures can not only facilitate the better discharge of the abrasive water jet; but also reduce the overall weight of the first tooling plate and achieve a lightweight design.

[0038] In a second aspect, the present application discloses a battery cover plate shaping device, which includes a workbench, a spray gun device, and a tooling structure as described in the first aspect above. The first tooling plate of the tooling structure is installed on the workbench, the spray gun device is movably installed on the workbench, and the spray gun device can move circumferentially along the outer exposed area relative to the workbench for shaping the outer exposed area.

[0039] Thirdly, the present application discloses a shaping method using the battery cover shaping device as described in the second aspect above. The shaping method includes:

[0040] Install the battery cover into the installation space of the first tooling plate;

[0041] Cover the second tooling plate on the battery cover, and make the battery cover have an exposed area exposed outside the second tooling plate;

[0042] Connect and fix the second tooling plate and the first tooling plate;

[0043] Install the first tooling plate on the workbench;

[0044] The spray gun device moves circumferentially along the exposed area relative to the workbench, and sprays abrasive water jet onto the exposed area to shape the exposed area.

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

[0046] The tooling structure provided in the embodiment of the present application includes a first tooling plate and a second tooling plate. By setting an installation space on the first tooling plate to install the battery cover, and using the second tooling plate to cover the battery cover, the battery cover has an exposed area exposed outside the second tooling plate, so as to expose the burr convex structure formed on the exposed area, that is, the burr convex structure on the battery cover will not be blocked by the second tooling plate. When using abrasive water jet to deburr the battery cover, only allow the abrasive water jet to act on the burr convex structure and the position of the battery cover where the burr convex structure is set, so that the abrasive water jet can impact and remove the burr convex structure, while preventing the abrasive water jet from acting on the position of the battery cover where there is no burr convex structure, so as to reduce the risk of abrasion, scratching and damage of the abrasive water jet to the battery cover, ensure the structural integrity and aesthetics of the battery cover, thereby facilitating to ensure the sealing performance of the battery cover, improve the sealing effect of the battery cover, and further improve the use safety of the battery. Description of the Drawings

[0047] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0048] Figure 1 Schematic diagram of the device for forming abrasive water jet;

[0049] Figure 2Schematic diagram of the first tooling structure disclosed in the embodiments of the present application with a battery cover installed;

[0050] Figure 3 It is Figure 2 The first exploded view of the tooling structure and the battery cover in

[0051] Figure 4 It is Figure 2 The second exploded view of the tooling structure and the battery cover in

[0052] Figure 5 It is Figure 2 The sectional view along the A-A direction of the tooling structure with a battery cover installed in

[0053] Figure 6 It is Figure 5 The partial enlarged view at M in

[0054] Figure 7 It is Figure 5 The partial enlarged view at N in

[0055] Figure 8 Schematic diagram of the second tooling structure disclosed in the embodiments of the present application with a battery cover installed;

[0056] Figure 9 It is Figure 8 The sectional view along the B-B direction of the tooling structure in

[0057] Figure 10 It is Figure 9 The partial enlarged view at P in

[0058] Figure 11 It is Figure 9 The partial enlarged view at Q in

[0059] Figure 12 It is Figure 8 The first exploded view of the tooling structure and the battery cover in

[0060] Figure 13 It is Figure 8 The second exploded view of the tooling structure and the battery cover in

[0061] Figure 14 Exploded view of the first tooling structure disclosed in the embodiments of the present application;

[0062] Figure 15 The first exploded view of the second tooling structure disclosed in the embodiments of the present application;

[0063] Figure 16It is a schematic diagram of the second decomposition structure of the second tooling structure disclosed in the embodiments of the present application;

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

[0065] Figure 18 It is a flowchart of a shaping method disclosed in the embodiments of the present application.

[0066] Main reference numeral description

[0067] 1a - mixing chamber; 1b - spray gun device;

[0068] 100 - tooling structure; 11 - first tooling plate; 11a - first surface; 11b - second surface; 111 - installation space; 112 - first through - hole structure; 1121 - first sub - through - hole; 1121a - through - hole part; 1122 - third sub - through - hole; 1123 - fifth sub - through - hole; 113 - annular receiving groove; 114 - third through - hole structure; 115 - limiting projection; 115a - first face; 115b - second face; 115c - chamfer; 115d - first sub - limiting projection; 115e - second sub - limiting projection; 1151 - third connection hole; 116 - first connection projection; 116a - first end; 116b - second end; 1161 - first connection hole; 117 - supporting projection; 1171 - supporting surface; 118 - notch; 12 - second tooling plate; 12a - first peripheral side surface; 12b - second peripheral side surface; 121 - second through - hole structure; 1211 - second sub - through - hole; 1212 - fourth sub - through - hole; 1213 - sixth sub - through - hole; 122 - first extending projection; 123 - second receiving groove; 124 - second connection projection; 124a - third end; 124b - fourth end; 1241 - second connection hole; 125 - third connection projection; 125a - first sub - connection projection; 125b - second sub - connection projection; 1251 - fourth connection hole;

[0069] 200 - battery cover plate; 20a - third surface; 20b - fourth surface; 20c - protruding part; 21 - through - hole; 21a - pole hole; 21b - liquid injection hole; 21c - explosion - proof hole; 22 - burr protruding 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 convex edge; 24 - first receiving groove; 25 - second extending projection;

[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 manners

[0072] In order to make the objectives, technical solutions and advantages of the present application clearer and more understandable, the following will clearly and completely describe the exemplary embodiments of the present application in conjunction with the accompanying drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. That is to say, the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0073] It should be noted that the brief description of the terms in the present application is only for the convenience of understanding the embodiments described hereinafter, rather than intending to limit the embodiments of the present application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0074] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present application.

[0075] The terms "first", "second", etc. used in the present application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of the present application, the first connecting protrusion may be called the second connecting protrusion, and similarly, the second connecting protrusion may be called the 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] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0077] In the description of the present application, it should be noted that, unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0078] In the description of the present 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 the terms "comprising" or "having" etc. specify the presence of the stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0079] In addition, the term "and / or" used in this specification includes any and all combinations of the related listed items. For example, A and / or B may represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. That is, the term "and / or" used in this specification includes any and all combinations of the related listed items.

[0080] Batteries in the related art generally include a housing, a bare battery cell, and a battery cover plate. Among them, the bare battery cell is disposed in the housing, and the battery cover plate is connected to the housing to seal the bare battery cell in the housing.

[0081] Currently, battery cover plates in the industry are usually manufactured by applying pressure to materials on a press using a stamping die. However, limited by the current technical level of stamping processing technology, burrs are inevitably generated in the products manufactured by stamping processing. Therefore, burrs usually exist on the battery cover plates, and thus, it is generally necessary to manually deburr the battery cover plates later. However, manual deburring has low efficiency and unsatisfactory results.

[0082] In the related art, in order to improve the deburring efficiency of battery cover plates, a powder brushing machine is usually used to remove the burrs on the battery cover plates. However, the powder brushing machine cannot effectively remove the burrs on the battery cover plates, resulting in low product quality of the battery cover plates.

[0083] In response to this, the applicant has found through research that the abrasive water jet polishing technology can effectively remove the burr convex structures on the battery cover plates and improve the product quality of the battery cover plates. The specific principle is as Figure 1As shown in the figure, high-pressure water and abrasive are mixed in the mixing chamber to form a high-pressure abrasive water jet. The abrasive water jet is sprayed onto the surface of the battery cover plate through the spray gun device 1b, so that by means of the high-speed collision of the abrasive particles with the surface of the battery cover plate, the stress in the local stress field on the battery cover plate is highly concentrated and rapidly changes, thus causing erosion and shearing to achieve the purpose of removing burrs.

[0084] Among them, the above-mentioned abrasive can be garnet sand with a mesh size of 200. This garnet sand can be ground from alumina raw materials and has the characteristics of high hardness, high temperature resistance, stable chemical properties, uniform particles, and high grinding efficiency. Using garnet sand with a mesh size of 200 and which can be ground from alumina raw materials can more effectively remove the burrs on the battery cover plate and further improve the product quality of the battery cover plate.

[0085] However, when the abrasive water jet is sprayed onto the surface of the battery cover plate through the spray gun device 1b to remove burrs, in addition to acting on the burrs to make the burrs break away from the battery cover plate, it will also act on the positions on the battery cover plate where there are no burrs, causing wear and scratches to the battery cover plate, affecting the aesthetics of the battery cover plate, and even causing the battery cover plate to be unable to cooperate with the housing to seal the bare battery cell, resulting in air leakage and liquid leakage, and further affecting the use safety of the battery.

[0086] In view of this, the embodiment of the present application provides a tooling structure that can effectively protect the battery cover plate to avoid scratches and damages to the battery cover plate during the deburring and shaping process of the battery cover plate.

[0087] Next, some technical solutions in some embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in some embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0088] Please refer to Figure 2 , Figure 2 which is an exemplary structural schematic diagram of the tooling structure for installing the battery cover plate, and Figure 2 shows that the tooling structure in the present application is generally a rectangular structure. However, it can be understood that the accompanying drawings of the present application only take the tooling structure 100 being generally a rectangular structure as an example for exemplary introduction, and do not limit that the tooling structure 100 of the present application can only be a rectangular structure.

[0089] In other embodiments, the tooling structure 100 can also be a circular structure, and the present application does not make specific limitations on this. However, it should be known that the rectangular tooling structure 100 is mainly used to install the square battery cover plate 200, and the circular tooling structure 100 is mainly used to install the circular battery cover plate 200.

[0090] In this application, the material of the battery cover plate 200 is metal. For example, the battery cover plate 200 can be a light aluminum sheet.

[0091] To facilitate the description of the positions of the various components of the tooling structure 100, in an exemplary embodiment of this application, a three-dimensional coordinate system is established based on the tooling structure 100, as Figure 2 shown. Among them, 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 refer to Figure 3 and Figure 4 , Figure 3 which is an exemplary exploded structure schematic diagram of the tooling structure in a specific embodiment, Figure 4 which is an exemplary exploded structure schematic diagram of the tooling structure in a specific embodiment.

[0093] As Figure 3 and Figure 4 shown, the battery cover plate 200 is provided with a through hole 21 penetrating along the thickness direction f3, where the through hole 21 includes at least one of a pole hole 21a, a liquid injection hole 21b, and an explosion-proof hole 21c. That is, in an exemplary case, the through hole 21 can include only one of the pole hole 21a, the liquid injection hole 21b, and the explosion-proof hole 21c. For example, the through hole 21 can include only the pole hole 21a, or can include only the liquid injection hole 21b, or can include only the explosion-proof hole 21c. In another exemplary case, the through hole 21 can include only two of the pole hole 21a, the liquid injection hole 21b, and the explosion-proof hole 21c. For example, the through hole 21 can include only the pole hole 21a and the liquid injection hole 21b, or can include only the pole hole 21a and the explosion-proof hole 21c, or only include the liquid injection hole 21b and the explosion-proof hole 21c. In yet another exemplary case, the through hole 21 includes the pole hole 21a, the liquid injection hole 21b, and the explosion-proof hole 21c.

[0094] Preferably, the through hole 21 includes a pole hole 21a, a liquid injection hole 21b, and an explosion-proof hole 21c. Among them, the pole hole 21a is used for the pole to pass through, the liquid injection hole 21b is used for injecting electrolyte into the shell to wet the bare battery cell with the electrolyte, and the explosion-proof hole 21c is used for installing an explosion-proof valve.

[0095] In this application, in combination with Figures 4 to 7As shown, a burr protrusion structure 22 is formed on the surface of the battery cover plate 200. The burr protrusion structure 22 includes a first burr protrusion 221 which is disposed at the outer peripheral edge of the battery cover plate 200; and / or, the burr protrusion structure 22 includes a second burr protrusion 222 which is disposed at the outer peripheral edge of the through hole 21. At this time, the second burr protrusion 222 includes a first sub-burr protrusion 222a which is disposed at the outer peripheral edge of the pole hole 21a; and / or, the second burr protrusion 222 includes a second sub-burr protrusion 222b which is disposed at the outer peripheral edge 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 peripheral edge of the explosion-proof hole 21c.

[0096] Please refer to Figures 4 to 7 , the tooling structure 100 provided in the embodiment of the present application is used to install the battery cover plate 200 during the deburring and shaping process of the battery cover plate. 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 in the thickness direction f3. An installation space 111 is provided on the first surface 11a, and the installation space 111 is used to install the battery cover plate 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 connected to the first tooling plate 11. 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 outside the second tooling plate 12, so as to expose the burr protrusion structure 22 formed on the exposed area. That is, the burr protrusion structure 22 on the battery cover plate 200 can be exposed outside the second tooling plate 12 and is not blocked by the second tooling plate 12. When deburring the battery cover plate 200 by abrasive water jet, it is allowed that the abrasive water jet only acts on the burr protrusion structure 22 and the position of the battery cover plate 200 where the burr protrusion structure 22 is provided.

[0097] That is, when removing and shaping the burr projection structure 22 on the battery cover plate 200, the battery cover plate 200 can be first placed in the installation space 111 of the first tooling plate 11. Then, the second tooling plate 12 is closed to connect and fix the second tooling plate 12 and the first tooling plate 11. The second tooling plate 12 covers and obscures the battery cover plate 200, and exposes the burr projection structure 22. Then, the coordinate system of the spray gun device is adjusted and calibrated, so that the spray gun device moves along the trajectory set by the program, and the abrasive water jet is sprayed onto the position (i.e., the exposed area) of the battery cover plate 200 where the burr projection structure 22 is provided, so as to remove the burr projection structure 22 by means of the abrasive particles in the abrasive water jet colliding and acting on the burr projection structure 22. Among them, the movement of the spray gun device along the trajectory set by the program can be understood as: the spray gun device moves circumferentially along the exposed area.

[0098] In the above process, since the second tooling plate 12 covers and obscures the battery cover plate 200, only the burr projection structure 22 is exposed, so that the abrasive water jet can only act on the burr projection structure 22 and the position of the battery cover plate 200 where the burr projection structure 22 is provided, so that the abrasive water jet can impact and remove the burr projection structure 22, and at the same time prevent the abrasive water jet from acting on the position of the battery cover plate 200 where the burr projection structure 22 is not provided, so as to reduce the risk of the abrasive water jet causing wear, scratches and damage to the battery cover plate 200, ensure the structural integrity and aesthetics of the battery cover plate 200, which is conducive to ensuring the sealing performance of the battery cover plate 200, improving the sealing effect of the battery cover plate 200, and further improving the use safety of the battery.

[0099] As an embodiment, the exposed area of the battery cover plate 200 includes the outer peripheral side edge located at the outer periphery of the battery cover plate 200, and a burr projection structure (i.e., the aforementioned first burr projection 221) is formed at the outer peripheral side edge. 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 side edge of the battery cover plate 200 protrudes out of the outer periphery of the second tooling plate 12. Then, the burr projection structure at the outer peripheral side edge of the battery cover plate 200 can protrude out of the outer periphery of the second tooling plate 12, expose the second tooling plate 12, and is not blocked by the second tooling plate 12, so that the burr projection structure provided at the outer peripheral side edge of the battery cover plate 200 can be removed by using the spray gun device.

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

[0101] Such as Figure 6As shown, the distance d1 between the outer peripheral side surface of the second tooling plate 12 and the outer peripheral side surface of the battery cover plate 200 may be 0.10 mm - 0.20 mm, so as to expose the first burr protrusion 221. Exemplarily, d1 = 0.10 mm, 0.11 mm, 0.12 mm, 0.13 mm, 0.14 mm, 0.15 mm, 0.16 mm, 0.17 mm, 0.18 mm, 0.19 mm or 0.20 mm, etc.

[0102] By controlling the distance d1 between the outer peripheral side surface of the second tooling plate 12 and the outer peripheral side surface of the battery cover plate 200 within the range of 0.10 mm - 0.20 mm, it can not only ensure that the first burr protrusion 221 will not be covered and blocked by the second tooling plate 12 to ensure that the first burr protrusion 221 can be removed, but also avoid excessive exposure of the battery cover plate 200 to reduce the risk of abrasion, scratching and damage to the battery cover plate 200 caused by abrasive water jet, and ensure the structural integrity and aesthetics of the battery cover plate 200.

[0103] As another embodiment, as Figures 4 to 7 shown, when the battery cover plate 200 is provided with a through hole 21 penetrating in the thickness direction, the exposed area of the battery cover plate 200 includes the hole edge located at the periphery of the through hole 21, and 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 penetrating in the thickness direction f3, and 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 penetrating in the thickness direction f3, and 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, so that 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. Thus, during the process of removing the second burr protrusion 222, the abrasive water jet is sprayed into the second through hole structure 121, collides with and acts on the second burr protrusion 222, so that the second burr protrusion 222 is separated from the periphery of the through hole 21, and the abrasive water jet entering 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, so as to ensure that the abrasive water jet can continuously inject into the second through hole structure 121 and ensure that the second burr protrusion 222 can continuously receive the effective impact of the abrasive water jet, thereby ensuring that the second burr protrusion 222 can be effectively removed, and the deburring effect is better, making the product quality of the battery cover plate 200 better.

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

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

[0106] Wherein, a burr protrusion structure (i.e., the aforementioned first burr protrusion 221) is formed at the outer peripheral side edge. 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 side edge of the battery cover plate 200 protrudes outward from the outer peripheral edge of the second tooling plate 12. Then, the burr protrusion structure at the outer peripheral side edge of the battery cover plate 200 can protrude outward from the outer peripheral edge of the second tooling plate 12, expose the second tooling plate 12, and is not blocked by the second tooling plate 12.

[0107] 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 that penetrates 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 that penetrates 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. Then, 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 that is opposite to and communicates with the pole hole 21a. The second through hole structure 121 may include a second sub-through hole 1211 that is opposite to and communicates with the pole hole 21a. The second burr protrusion 222 may include a first sub-burr protrusion 222a. The first sub-burr protrusion 222a is disposed at the hole edge of the pole hole 21a and is located in the second sub-through hole 1211 and is not blocked by the second tooling plate 12. Thus, during the process of removing the first sub-burr protrusion 222a, the abrasive water jet is sprayed into the second sub-through hole 1211, collides with and acts on the first sub-burr protrusion 222a, so that the first sub-burr protrusion 222a detaches from the peripheral edge of the pole hole 21a. The abrasive water jet that enters the second sub-through hole 1211 is discharged through the pole hole 21a and the first sub-through hole 1121, avoiding accumulation in the pole hole 21a or even in the second sub-through hole 1211, ensuring that the abrasive water jet can continuously be injected into the second sub-through hole 1211, and ensuring that the first sub-burr protrusion 222a can continuously be 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 liquid 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 liquid injection hole 21b. The second burr protrusion 222 may include a second sub-burr protrusion 222b, and the second sub-burr protrusion 222b is disposed at the hole edge of the liquid injection hole 21b and is located in the fourth sub-through-hole 1212 without being blocked by the second tooling plate 12. Thus, during the process of removing the second sub-burr protrusion 222b, the abrasive water jet is ejected into the fourth sub-through-hole 1212, collides with and acts on the second sub-burr protrusion 222b, so that the second sub-burr protrusion 222b is separated from the peripheral edge of the liquid injection hole 21b. The abrasive water jet entering the fourth sub-through-hole 1212 is discharged through the liquid injection hole 21b and the third sub-through-hole 1122, avoiding accumulation in the liquid injection hole 21b or even in the fourth sub-through-hole 1212, to ensure that the abrasive water jet can continuously be injected into the fourth sub-through-hole 1212 and ensure that the second sub-burr protrusion 222b can continuously be 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. The second burr protrusion 222 may include a third sub-burr protrusion 222c, and the third sub-burr protrusion 222c is disposed at the hole edge of the explosion-proof hole 21c and is located in the sixth sub-through-hole 1213 without being blocked by the second tooling plate 12. Thus, during the process of removing the third sub-burr protrusion 222c, the abrasive water jet is ejected into the sixth sub-through-hole 1213, collides with and acts on the third sub-burr protrusion 222c, so that the third sub-burr protrusion 222c is separated from the peripheral edge 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, to ensure that the abrasive water jet can continuously be injected into the sixth sub-through-hole 1213 and ensure that the third sub-burr protrusion 222c can continuously be 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 hole wall surface of the second through-hole structure 121 and the hole wall surface of the via 21 is 0.10 mm - 0.20 mm, so as to expose the second burr protrusion 222. Exemplarily, the distance between the outer hole wall surface of the second through-hole structure 121 and the hole wall surface of the via 21 can be 0.10 mm, 0.11 mm, 0.12 mm, 0.13 mm, 0.14 mm, 0.15 mm, 0.16 mm, 0.17 mm, 0.18 mm, 0.19 mm or 0.20 mm, etc.

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

[0113] By controlling the distance between the outer hole wall surface of the second through-hole structure 121 and the hole wall surface of the via 21 within the range of 0.10 mm - 0.20 mm, it can not only ensure that the second burr protrusion 222 is not covered by the second tooling plate 12 to ensure that the second burr protrusion 222 can be removed, but also avoid excessive exposure of the battery cover plate 200 to reduce the risk of abrasion, scratching and damage to the battery cover plate 200 caused by abrasive water jet, and ensure the structural integrity and aesthetics of the battery cover plate 200.

[0114] In the present application, the battery cover plate 200 has a third surface 20a and a fourth surface 20b opposite to each other in the thickness direction f3. When the first burr projection 221 and the second burr projection 222 exist simultaneously, the first burr projection 221 and the second burr projection 222 are generally located on two opposite surfaces of the battery cover plate 200 in the thickness direction f3 respectively. That is, one of the first burr projection 221 and the second burr projection 222 is disposed on the third surface 20a, and the other of the first burr projection 221 and the second burr projection 222 is disposed on the fourth surface 20b. For example, if the first burr projection 221 is disposed on the third surface 20a and the second burr projection 222 is disposed on the fourth surface 20b, when removing the first burr projection 221, the third surface 20a and the first burr projection 221 are disposed facing away from the first tooling plate 11 and facing the second tooling plate 12, so that the abrasive water jet can act on the first burr projection 221. At this time, the fourth surface 20b and the second burr projection 222 are disposed facing the second tooling plate 12, and the abrasive water jet cannot act on the second burr projection 222. Therefore, it is necessary to flip the battery cover plate 200 so that the fourth surface 20b and the second burr projection 222 are disposed facing away from the first tooling plate 11 and facing the second tooling plate 12, and the abrasive water jet can act on the second burr projection 222 to achieve the purpose of removing the second burr projection 222.

[0115] In some embodiments, as Figure 6 shown, a circular convex edge 23 protrudes from the third surface 20a of the battery cover plate 200. Among them, the pole hole 21a is located in the hollow part of the circular convex edge 23. When removing the first burr projection 221, the third surface 20a, the first burr projection 221, and the circular convex edge 23 are all disposed facing away from the first tooling plate 11 and facing the second tooling plate 12. The second tooling plate 12 covers the third surface 20a of the battery cover plate 200, and the circular convex edge 23 is embedded in the second sub-through hole 1211. Thus, the mutual cooperation between the circular convex edge 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, as Figure 10 and Figure 12As shown, the first tooling plate 11 is provided with an annular accommodation groove 113, and the annular accommodation groove 113 is located in the installation space 111. When removing the second burr projection 222, the fourth surface 20b and the second burr projection 222 are arranged facing away from the first tooling plate 11 and towards the second tooling plate 12, and the third surface 20a and the annular convex edge 23 are arranged facing the first tooling plate 11 and away from the second tooling plate 12. When the battery cover plate 200 is installed in the installation space 111, the annular accommodation groove 113 is used to accommodate the annular convex edge 23, that is, the annular convex edge 23 is embedded in the annular accommodation groove 113. Thus, the mutual cooperation between the annular convex edge 23 and the annular accommodation groove 113 can play a positioning and limiting effect on the assembly of the battery cover plate 200.

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

[0118] In some embodiments, as Figure 10 and Figure 12 shown, the fourth surface 20b is provided with a first accommodation groove 24, wherein the first accommodation groove 24 is communicated with the pole hole 21a, and the first sub-burr projection 222a of the second burr projection 222 is formed on the bottom surface of the first accommodation groove 24. The surface of the second tooling plate 12 facing the first tooling plate 11 is convexly provided with a first extension projection 122, wherein the second sub-through hole 1211 extends to penetrate through the first extension projection 122. When removing the second burr projection 222, the fourth surface 20b, the second burr projection 222 and the first accommodation groove 24 are all arranged facing away from the first tooling plate 11 and towards the second tooling plate 12. The second tooling plate 12 covers the fourth surface 20b of the battery cover plate 200, and the first extension projection 122 is embedded in the first accommodation groove 24. Thus, the mutual cooperation between the first extension projection 122 and the first accommodation groove 24 can play a positioning and limiting effect on the assembly of the second tooling plate 12.

[0119] Further, the radial dimension of the first extension 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 extension protrusion 122 is smaller than the depth of the first receiving groove 24. By making the radial dimension of the first extension protrusion 122 smaller than the radial dimension of the first receiving groove 24, it is possible to avoid friction and even collision between the first extension protrusion 122 and the hole wall surface of the first receiving groove 24, so as to prevent the risk of scraping out the metal wire; since the thickness of the battery cover plate 200 where the first receiving groove 24 is located is relatively thin, by making the height of the first extension protrusion 122 smaller than the depth of the first receiving groove 24, it is possible to prevent the first extension protrusion 122 from causing damage to the battery cover plate 200.

[0120] In some embodiments, as Figure 11 and Figure 12 shown, a second extension protrusion 25 further protrudes from the fourth surface 20b of the battery cover plate 200. Among them, the liquid injection hole 21b extends through the second extension protrusion 25. The second sub-burr protrusion 222b of the second burr protrusion 222 is formed on the second extension protrusion 25. A second receiving groove 123 is provided on the surface of the second tooling plate 12 facing the first tooling plate 11. The second receiving groove 123 communicates with the fourth 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 all arranged facing 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 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 be used to achieve a positioning and limiting effect on the assembly of the second tooling plate 12.

[0121] Further, in the thickness direction f3, the depth of the second receiving groove 123 is greater than the height of the second extension protrusion 25, and / or, the radial dimension of the second receiving groove 123 is greater than the radial dimension of the second extension protrusion 25. By making the depth of the second receiving groove 123 greater than the height of the second extension protrusion 25, it is possible to prevent the second tooling plate 12 from causing damage to the second extension protrusion 25; by making the radial dimension of the second receiving groove 123 greater than the radial dimension of the second extension protrusion 25, it is possible to avoid friction and even collision between the second extension protrusion 25 and the hole wall surface of the second receiving groove 123, so as to prevent the risk of scraping out the metal wire.

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

[0123] It can be seen that the first peripheral side surface 12a is a plane parallel to the thickness direction f3, and the second peripheral side surface 12b is an inclined plane arranged at an angle with the thickness direction f3. Among them, the arrangement of the inclined plane can better guide the abrasive water jet to the first burr projection 221 to act on the first burr projection 221, while the arrangement of the plane can ensure that the flow direction of the abrasive water jet before contacting the first burr projection 221 extends along the thickness direction f3, opposite to the protruding direction of the first burr projection 221, so as to effectively remove the first burr projection and improve the deburring effect.

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

[0125] Controlling the width b of the first peripheral side surface 12a in the thickness direction f3 within the range of 0.5 mm - 3 mm can not only ensure that the flow direction of the abrasive water jet before contacting the first burr projection 221 extends along the thickness direction f3, opposite to the protruding direction of the first burr projection 221, so as to effectively remove the first burr projection 221 and improve the deburring effect, but also avoid the second peripheral side surface 12b being too small to ensure the flow guiding effect of the second peripheral side surface 12b.

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

[0127] With such a setting, when the battery cover plate 200 is installed in the installation space 111, whether, as Figure 13 shown, the liquid injection hole 21b is closer to the left side of the first tooling plate 11, or as Figure 14 shown, the liquid injection hole 21b is closer to the right side of the first tooling plate 11, there is a third sub-through hole 1122 and a fourth sub-through hole 1212 corresponding to and communicating with the liquid injection hole 21b. Thus, while being able to remove the second sub-burr protrusion 222b along the periphery of the liquid injection hole 21b by using abrasive water jet, when installing the battery cover plate 200, there is no need to pay attention to the left and right directions, which has a good anti-misassembly effect during installation and can make the installation of the battery cover plate 200 more flexible and convenient.

[0128] In some embodiments, a plurality of third through-hole structures 114 penetrating along the thickness direction f3 are further provided on the first tooling plate 11. By providing a plurality of third through-hole structures 114, it is not only possible to facilitate the better discharge of the abrasive water jet, but also to reduce the overall weight of the first tooling plate 11 and achieve a lightweight design.

[0129] In some embodiments, as Figure 14 shown, a plurality of limiting protrusions 115 protrude from 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 circumferential direction of the first tooling plate 11, and an installation space 111 as described above 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 a plurality of spaced-apart limiting protrusions 115, thereby being able to reduce the overall weight of the first tooling plate 11 and achieve a lightweight design.

[0131] Optionally, the first surface 115a of the limiting protrusion 115 facing the second tooling plate 12, and the limiting protrusion 115 further has a second surface 115b located in the installation space 111. A chamfer 115c, such as an inclined chamfer or a rounded chamfer, is provided at the connection between the first surface 115a and the second surface 115b to facilitate quickly placing the battery cover plate in the installation space 111.

[0132] As an alternative implementation manner, as Figure 14As shown, 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. 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 arranged 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, so as to realize the connection and fixation of the second tooling plate and the first tooling plate, thereby realizing the fixation of the battery cover plate between the first tooling plate and the second tooling plate. Among them, the first threaded locking member can be a screw or a bolt, etc.

[0133] In this way, the second tooling plate 12 can be fixedly connected to the first tooling plate 11 through a first threaded locking member such as a screw or a bolt. The installation method is simple, stable and reliable, and it is convenient to disassemble. In addition, since the second connecting protrusion 124 is located in the second sub-through hole 1211, the overall structure of the second tooling plate 12 can be made smaller, which is convenient for realizing the miniaturized 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 to each other in the first preset direction f4. The first end 116a and the second end 116b are respectively connected to the hole wall surface of the first sub-through hole 1121 to divide the first sub-through hole 1121 into two through hole parts 1121a, and each through hole part 1121a communicates with the second sub-through hole 1211. The second connecting protrusion 124 has a third end 124a and a fourth end 124b opposite to each other in the second preset direction f5. The third end 124a is connected to the hole wall surface of the second sub-through hole 1211, and the fourth end 124b is arranged at an interval from the hole wall surface of the second sub-through hole 1211.

[0135] Since the first connecting protrusion 116 needs to bear the second connecting protrusion 124, there are certain requirements for the load-bearing capacity of the first connecting protrusion 116. Therefore, both ends of the first connecting protrusion 116 are connected to the pore wall surface of the first sub-through hole 1121, which can improve the connection stability of the first connecting protrusion 116 in the first sub-through hole 1121 and can better bear the second connecting protrusion 124. And since the second connecting protrusion 124 is arranged on the first connecting protrusion 116 and usually does not need to bear other components, the requirements for the load-bearing capacity of the second connecting protrusion 124 are not high. Therefore, one end of the second connecting protrusion 124 is connected to the pore wall surface of the second sub-through hole 1211, and the other end is not connected to the pore wall surface of the second sub-through hole 1211, which can provide a connection position for the connection between the second tooling plate 12 and the first tooling plate 11, and at the same time reduce the size of the second connecting protrusion 124 and reduce the overall weight of the second tooling plate 12 to achieve the 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. Exemplarily, 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. For example, in Figure 14 both 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 extending directions of the first connecting protrusion 116 and the second connecting protrusion 124 are the same, which can place the entire second connecting protrusion 124 on the first connecting protrusion 116, increase the contact area between the second connecting protrusion 124 and the first connecting protrusion 116, and improve the stability of the second connecting protrusion 124 on the first connecting protrusion 116, thus contributing 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 occlusion of the first sub-through hole 1121, facilitating the better discharge of the abrasive water jet.

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

[0139] When the first sub-through hole 1121 is disposed opposite to the pole hole 21a and the second sub-through hole 1211 is disposed opposite to the pole hole 21a, since there will be some burr protrusion structures at the hole edge of the pole hole 21a blocked by the second connection protrusion 124, that is, some first sub-burr protrusions are blocked by the second connection protrusion 124. Therefore, when the first tooling plate 11 and the second tooling plate 12 are fixedly connected through the above-mentioned first threaded locking member, it is usually used in the process of removing the burr protrusion structures at the outer peripheral edge of the battery cover plate. Of course, it can be understood that in other embodiments, it can also be used in the process of removing the burr protrusion structures at the hole edge of the liquid injection hole 21b and the hole edge of the explosion-proof hole 21c.

[0140] As another alternative embodiment, as Figure 15 shown, the limiting protrusion 115 is provided with a third connection hole 1151 whose axis extends along the thickness direction f3. The outer peripheral side surface of the second tooling plate 12 is convexly provided with a third connection protrusion 125. The third connection protrusion 125 is provided with a fourth connection hole 1251 whose axis extends along the thickness direction f3. The third connection protrusion 125 is disposed on the side of the limiting protrusion 115 facing away from the first tooling plate 11. The fourth connection hole 1251 and the third connection hole 1151 are disposed opposite to each other and are fixedly connected through a second threaded locking member to realize the connection and fixation between the second tooling plate and the first tooling plate, so as to realize the fixation of the battery cover plate between the first tooling plate and the second tooling plate. Among them, the second threaded locking member can be a screw or a bolt, etc.

[0141] It can be seen that the limiting protrusion 115 can not only limit the position of the battery cover plate on the first tooling plate 11, but also provide 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 through a second threaded locking member such as a screw or a bolt, and the installation method is simple, stable and reliable; and it is convenient to disassemble.

[0142] It should be noted that the limiting protrusion 115 is located at the outer peripheral edge of the battery cover plate, and the third connecting protrusion 125 is located at the outer peripheral edge of the battery cover plate. When the third connecting protrusion and the limiting protrusion are connected and fixed by the second threaded locking member, some burr protrusion structures at the outer peripheral edge of the battery cover plate will be blocked by the third connecting protrusion 125. That is, some 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 through the above-mentioned second threaded locking member, it is usually used in the process of removing the burr protrusion structures at the hole edges of 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 protrusions, the second tooling plate 12 with the second connecting protrusion 124 provided in the second sub-through hole is usually adopted; and when removing the second burr protrusions 124 such as the first sub-burr protrusions, the second sub-burr protrusions, and the third sub-burr protrusions, the second tooling plate 12 with the third connecting protrusion 125 provided is adopted.

[0144] In some embodiments, the multiple limiting protrusions 115 include three first sub-limiting protrusions 115d and three second sub-limiting protrusions 115e. Among them, each first sub-limiting protrusion 115d and each second sub-limiting protrusion 115e are provided with the aforementioned third connecting holes 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. Moreover, 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 with respect to the length direction f1.

[0145] The third connecting protrusion 125 includes one first sub-connecting protrusion 125a and two second sub-connecting protrusions 125b. Among them, the first sub-connecting protrusion 125a and each second sub-connecting protrusion 125b are provided with the aforementioned fourth connecting holes 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. Moreover, the two second sub-connecting protrusions 125b are symmetrically arranged with respect to the first sub-connecting protrusion 125a.

[0146] With such a setting, when assembling the second tooling plate 12 to the first tooling plate 11, whether Figure 15 as shown, one first sub-connecting protrusion is located at the front side of the second tooling plate 12, or as Figure 16As shown, two second sub-connection protrusions are located on the front side of the second tooling plate 12. The fourth connection holes 1251 on each sub-connection protrusion correspond to and communicate with the third connection holes 1151, so that the fourth connection holes 1251 on each sub-connection protrusion can be connected to the third connection holes 1151 through threaded locking parts, 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 directions, which has a good anti-fooling effect during installation, makes the assembly of the second tooling plate 12 more flexible and convenient, and can be quickly assembled.

[0147] In some embodiments, as Figure 16 and Figure 17 shown, the first tooling plate 11 is provided with a support protrusion 117 protruding towards the second tooling plate 12. The support protrusion 117 is located in the installation space 111, and the support protrusion 117 is used to support the battery cover plate 200. Among them, the support protrusion 117 has a support surface 1171 in contact with the battery cover plate.

[0148] Exemplarily, the outer peripheral edge of the battery cover plate 200 protrudes outside the outer peripheral edge of the support surface 1171. Due to the existence of the support protrusion 117, the part of the battery cover plate 200 protruding outside the outer peripheral edge of the support surface 1171 can be spaced from the first surface 11a, so as to facilitate clamping with a fixture or the user to hold the part of the battery cover plate 200 protruding outside the outer peripheral edge of the support surface 1171, and take the battery cover plate 200 off the first tooling plate 11, which is convenient for taking and convenient for manual unloading.

[0149] Another exemplarily, a notch 118 is provided on the outer peripheral edge of the support protrusion 117. The notch 118 is used to make the outer peripheral edge of the battery cover plate 200 have a protruding part 20c protruding outside the outer peripheral edge of the support surface 1171. Due to the existence of the support protrusion 117, the protruding part 20c of the battery cover plate 200 protruding outside the outer peripheral edge of the support surface 1171 can be spaced from the first surface 11a, so as to facilitate clamping with a fixture or the user to hold the protruding part 20c of the battery cover plate 200 protruding outside the outer peripheral edge of the support surface 1171, and take the battery cover plate 200 off the first tooling plate 11, which is convenient for taking and convenient for manual unloading.

[0150] Exemplarily, the battery cover plate 200 is a rectangular cover plate, and there are two notches 118. The two notches 118 are respectively located on a pair of diagonals of the battery cover plate 200. Then, the outer peripheral edge of the battery cover plate 200 has two protruding parts 20c protruding outside the outer peripheral edge of the support surface 1171, which is convenient for the user to hold the two protruding parts 20c of the battery cover plate 200 protruding outside the outer peripheral edge of the support surface 1171 with both hands and take the battery cover plate 200 off the first tooling plate 11, which is more convenient for taking and more convenient for manual unloading.

[0151] An embodiment of the present application also provides a battery cover plate shaping device, which includes a workbench, 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 installed on the workbench, the spray gun device is movably installed on the workbench, and the spray gun device can move circumferentially along the exposed area relative to the workbench for shaping the exposed area.

[0152] Specifically, the spray gun device has a mixing chamber, a first feed port, a second feed port, and a discharge port communicating with the mixing chamber. Abrasive enters the mixing chamber from the first feed port, high-pressure water enters the mixing chamber from the second feed port, and the high-pressure water and the 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 along the exposed area relative to the workbench, and the abrasive water jet can be sprayed onto the exposed area of the battery cover plate through the discharge port of the spray gun device. By means of the high-speed collision of the abrasive particles with the exposed area, the stress in the local stress field on the battery cover plate is highly concentrated and rapidly changed, thus causing erosion and shearing to achieve the purpose of removing the burr protrusion structure and realizing the deburring and shaping treatment of the exposed area.

[0153] Since in the above process, the second tooling plate covers and blocks the battery cover plate, only the exposed area provided with the burr protrusion structure is exposed, so that the abrasive water jet can only act on the burr protrusion structure and the position of the battery cover plate where the burr protrusion structure is provided, so that the abrasive water jet can impact and remove the burr protrusion structure, while preventing the abrasive water jet from acting on the position of the battery cover plate where there is no burr protrusion structure, so as to reduce the risk of abrasion, scratching, and damage to the battery cover plate caused by the abrasive water jet, ensure the structural integrity and aesthetics of the battery cover plate, which is beneficial to ensuring the sealing performance of the battery cover plate, improving the sealing effect of the battery cover plate, and further improving the use safety of the battery.

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

[0155] The above abrasive can be garnet sand with 200 meshes. The garnet sand can be ground from alumina raw materials and has the characteristics of high hardness, high temperature resistance, stable chemical properties, uniform particles, and high grinding efficiency. Using garnet sand with 200 meshes and the garnet sand can be ground from alumina raw materials can more effectively remove the burr protrusion structure on the battery cover plate and further improve the product quality of the battery cover plate.

[0156] Please refer to Figure 18 , an embodiment of the present application also provides a shaping method using the battery cover plate shaping device as described in any of the above embodiments, and the shaping method includes:

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

[0158] S12. Cover the second tooling plate on the battery cover plate, and make the battery cover plate have an exposed area exposed outside the second tooling plate.

[0159] S13. Connect and fix the second tooling plate and the first tooling plate.

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

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

[0162] It should be noted that step S11 can be carried out first and then step S14, or step S14 can be carried out first and then step S11. Specifically, it can be determined according to the actual situation, and the embodiments of the present application do not make specific limitations.

[0163] S15. The spray gun device moves circumferentially along the exposed area relative to the workbench, and sprays abrasive water jet to the exposed area to shape the exposed area.

[0164] In this step, the spray gun device adopted has a high-pressure abrasive water jet formed in the mixing chamber. The spray gun device can move circumferentially along the exposed area relative to the workbench, and the abrasive water jet can be sprayed to the exposed area of the battery cover plate through the spray gun device. By means of the high-speed collision of abrasive particles with the exposed area, the stress in the local stress field on the battery cover plate is highly concentrated and changes rapidly, so erosion and shear are generated to achieve the purpose of removing burr convex structures and realizing deburring and shaping treatment of the exposed area.

[0165] Since in the above process, the second tooling plate covers and blocks the battery cover plate, only the exposed area provided with burr convex structures is exposed, so that the abrasive water jet can only act on the burr convex structures and the positions of the battery cover plate where the burr convex structures are provided, so that the abrasive water jet can impact and remove the burr convex structures, and at the same time prevent the abrasive water jet from acting on the positions of the battery cover plate where there are no burr convex structures, so as to reduce the risk of wear, scratch and damage caused by the abrasive water jet to the battery cover plate, ensure the structural integrity and aesthetics of the battery cover plate, which is beneficial to ensuring the sealing performance of the battery cover plate, improving the sealing effect of the battery cover plate, and further improving the use safety of the battery.

[0166] Among them, the above-mentioned high-pressure abrasive water jet is mainly formed by mixing high-pressure water and abrasive in the mixing chamber of the spray gun device. The above-mentioned abrasive can be garnet sand with a mesh size of 200, and the garnet sand can be ground from alumina raw materials, which has the characteristics of high hardness, high temperature resistance, stable chemical properties, uniform particles, and high grinding efficiency. Using garnet sand with a mesh size of 200 and the garnet sand can be ground from alumina raw materials can more effectively remove the burr and convex structure on the battery cover plate, and further improve the product quality of the battery cover plate.

[0167] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, 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, it should be considered as the scope described in this specification.

[0168] In addition, the above-mentioned embodiments only represent several implementation manners of the present application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the content of this specification should not be construed as a limitation of the present application, and the protection scope of the present application should be subject to the appended claims.

Claims

1. A tooling structure for installing a battery cover plate, characterized in that, The tooling structure (100) has a thickness direction (f3), and the tooling structure (100) includes: A first tooling plate (11), the first tooling plate (11) having a first surface (11a) and a second surface (11b) opposite to each other along the thickness direction (f3), an installation space (111) being provided on the first surface (11a), and the installation space (111) being used for installing the battery cover plate (200); and, A second tooling plate (12), the second tooling plate (12) being located on the side where the first surface (11a) of the first tooling plate (11) is located, and the second tooling plate (12) being connected to the first tooling plate (11), a projection of the second tooling plate (12) on the first tooling plate (11) being at least partially located in the installation space (111), the second tooling plate (12) being used for covering the battery cover plate (200), and the battery cover plate (200) having an exposed area exposed outside the second tooling plate (12).

2. The tooling structure according to claim 1, wherein The exposed area of the battery cover plate (200) includes an outer peripheral side edge located at the outer peripheral edge of the battery cover plate (200), a projection of the second tooling plate (12) on the first tooling plate (11) being located in the installation space (111), and the outer peripheral side edge protruding out of the outer peripheral edge of the second tooling plate (12); and / or, The battery cover plate (200) is provided with a through hole (21) penetrating along the thickness direction (f3), the through hole (21) including at least one of a pole hole (21a), a liquid injection hole (21b), and an explosion-proof hole (21c), the exposed area of the battery cover plate (200) including a hole edge located at the peripheral edge of the through hole (21), the first tooling plate (11) being provided with a first through hole structure (112) penetrating along the thickness direction (f3), the first through hole structure (112) being located in the installation space (111) and being arranged opposite to the through hole (21), the second tooling plate (12) being provided with a second through hole structure (121) penetrating along the thickness direction (f3), the second through hole structure (121) being arranged opposite to the through hole (21), and a projection of the hole edge on the second tooling plate (12) being located in the second through hole structure (121).

3. The tooling structure according to claim 1, characterized in that, The first tooling plate (11) is provided with a first sub-through hole (1121) penetrating along the thickness direction (f3), the first sub-through hole (1121) being located in the installation space (111), and a first connection protrusion (116) being arranged in the first sub-through hole (1121), the first connection protrusion (116) being provided with a first connection hole (1161) whose axis extends along the thickness direction (f3); The second tooling plate (12) is provided with a second sub-through hole (1211) penetrating along the thickness direction (f3). The second sub-through hole (1211) is disposed opposite to and communicated with the first sub-through hole (1121). A second connecting protrusion (124) is disposed 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 a 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.

4. The tooling structure according to claim 3, characterized in that, The first connecting protrusion (116) has a first end (116a) and a second end (116b) opposite to each other in a first preset direction (f4). The first end (116a) and the second end (116b) are respectively connected to the wall surface of the first sub-through hole (1121) to divide the first sub-through hole (1121) into two through-hole parts (1121a). Each through-hole part (1121a) is communicated with the second sub-through hole (1211). The second connecting protrusion (124) has a third end (124a) and a fourth end (124b) opposite to each other in a second preset direction (f5). The third end (124a) is connected to the wall surface of the second sub-through hole (1211), and the fourth end (124b) is spaced from the wall surface of the second sub-through hole (1211). Wherein, the first preset direction (f4) and the second preset direction (f5) are parallel or intersecting.

5. The tooling structure according to claim 1, characterized in that A plurality of limiting protrusions (115) protrude from the first surface (11a). The plurality of limiting protrusions (115) are arranged at intervals along the circumferential direction of the first tooling plate (11). An installation space (111) is formed between the plurality of limiting protrusions (115) and the first surface (11a).

6. The tooling structure according to claim 5, characterized in that, The limiting protrusion is provided with a third connecting hole (1151) whose axis extends along the thickness direction (f3). A third connecting protrusion (125) protrudes from the outer peripheral side surface of the second tooling plate (12). 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 disposed on a 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 disposed opposite to each other and are connected and fixed by a second threaded locking member.

7. The tooling structure according to claim 6, wherein, The tooling structure (100) further has a length direction (f1) and a width direction (f2). The multiple limiting protrusions (115) include three first sub-limiting protrusions (115d) and three second sub-limiting protrusions (115e). Each of the first sub-limiting protrusions (115d) and each of the second sub-limiting protrusions (115e) are provided with the third connection holes (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). And 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 with respect to the length direction (f1). The third connection protrusion (125) includes one first sub-connection protrusion (125a) and two second sub-connection protrusions (125b). The first sub-connection protrusion (125a) and each of the second sub-connection protrusions (125b) are provided with the fourth connection holes (1251). The first sub-connection protrusion (125a) is located on one side of the second tooling plate (12) in the width direction (f2), and the two second sub-connection protrusions (125b) are located on the other side of the second tooling plate (12) in the width direction (f2). And the two second sub-connection protrusions (125b) are symmetrically arranged with respect to the first sub-connection protrusion (125a).

8. The tooling structure according to claim 5, wherein The first tooling plate (11) is provided with a support protrusion (117) protruding towards the second tooling plate (12). The support protrusion (117) is located in the installation space (111), and the support protrusion (117) is used to support the battery cover plate (200). Wherein, the support protrusion (117) has a support surface (1171) in contact with the battery cover plate (200). The outer periphery of the battery cover plate (200) protrudes outside the outer periphery of the support surface (1171); and / or A notch (118) is provided on the outer periphery of the support protrusion (117). The notch (118) is used to make the outer periphery of the battery cover plate (200) have a protruding part (20c) protruding outside the outer periphery of the support surface (1171).

9. The tooling structure according to claim 5, wherein The limiting protrusion (115) has a first surface (115a) facing the second tooling plate (12), and also has a second surface (115b) located in the installation space (111). A chamfer (115c) is provided at the connection between the first surface (115a) and the second surface (115b).

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

11. The tooling structure according to claim 10, wherein, The width of the first circumferential side surface (12a) in the thickness direction (f3) is 0.5 mm - 3 mm.

12. The tooling structure according to claim 1, characterized in that, The first tooling plate (11) is further provided with a plurality of third through-hole structures (114) penetrating along the thickness direction (f3).

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

14. A shaping method using the battery cover shaping device as described in claim 13, characterized in that, The shaping method includes: Installing the battery cover into the installation space of the first tooling plate; Covering the second tooling plate on the battery cover, and making the battery cover have an outer exposed area exposed outside the second tooling plate; Connecting and fixing the second tooling plate and the first tooling plate; Installing the first tooling plate on the workbench; The spray gun device moves circumferentially along the outer exposed area relative to the workbench and sprays abrasive water jets onto the outer exposed area to shape the outer exposed area.

Images