A method and device for universal design and manufacture of bottom protection plates

Abstract

A kind of general design and manufacturing method and device of bottom guard plate belong to new energy vehicle chassis protection field, including obtaining the vehicle bottom information of multiple preset vehicle models;According to the vehicle bottom information of each preset vehicle model, the second structure information of corresponding bottom guard plate is generated respectively;First structure information and second structure information include boundary information of contour boundary and point information of fastening point;All second structure information is fused to obtain third structure information, and third structure information includes all second structure information;According to third structure information, generate basic structure;According to the second structure information of each preset vehicle model, the basic structure is punched respectively to obtain corresponding bottom guard plate.The application can generate the basic structure suitable for processing all preset vehicle models in advance, improve the universality of the basic structure obtained by preliminary processing, and improve the processing efficiency when producing the bottom guard plate of each preset vehicle model.

Description

Technical Field

[0001] This application relates to the field of chassis protection for new energy vehicles, specifically to a universal design and manufacturing method and device for underbody protection plates. Background Technology

[0002] With increasing consumer awareness of environmental protection and the pursuit of better fuel economy and electric vehicle range, low-drag design solutions are being applied more and more widely in automobiles. Mainstream low-drag solutions for vehicles include the design and placement of large-area underbody protection plates to eliminate unevenness under the vehicle. This significantly improves airflow under the vehicle during driving. CFD simulation analysis shows that this solution can effectively reduce overall vehicle drag from an aerodynamic perspective, while also improving vehicle performance.

[0003] Because the battery pack assembly is located at the bottom of new energy vehicles, the underbody protection plate needs to be designed to match the battery pack. As the core power component of the vehicle, the internal battery pack structure and layout affect the outer contour dimensions and the fastening point structure for matching the underbody protection plate. Therefore, it has a direct impact on the design of the underbody protection plate. With the rapid development of the new energy vehicle industry in recent years, the battery pack assembly has a short iteration and upgrade cycle. If the battery pack is adapted to the underbody protection plate in terms of boundaries and fastening points, the internal battery pack structure and layout scheme will be greatly limited. Therefore, the current common approach is to modify the underbody protection plate in sync with the battery pack.

[0004] However, from a product development perspective, underbody protection plates are usually large in size, and the investment in their molds is also high, which leads to OEMs having to spend a lot of mold fees to meet the development needs of underbody protection plates.

[0005] Existing technology 1 discloses a platform-based design method for underbody protection plates in new energy vehicles. The length of the front underbody protection plate is designed based on the model with the shortest front overhang, and for models with different front overhang lengths, the bottom flange of the extended front bumper assembly overlaps with the front edge of the front underbody protection plate. Similarly, the length of the rear underbody protection plate is designed based on the model with the shortest rear overhang, and for models with different rear overhang lengths, the bottom flange of the extended rear bumper assembly overlaps with the rear edge of the rear underbody protection plate. The length of the mid-body protection plate is designed based on the model with the longest wheelbase, and multiple first-die-cut grooves are provided on the mid-body protection plate to correspond to models with different wheelbase lengths. However, this solution has limitations in underbody protection plate size design. Product boundaries need to be planned and defined in advance based on platform components. When making later changes, surrounding components need to be adapted to the underbody protection plate, resulting in numerous constraints on surrounding boundaries during later modifications. Summary of the Invention

[0006] This application provides a universal design and manufacturing method and apparatus for bottom guard plates, which can solve the technical problem of poor universality of bottom guard plates in the prior art.

[0007] In a first aspect, embodiments of this application provide a universal design and manufacturing method for a bottom guard plate, the universal design and manufacturing method for the bottom guard plate comprising:

[0008] Obtain vehicle bottom information for multiple preset vehicle models, wherein the vehicle bottom information includes the first structural information of all peripheral components of the vehicle bottom near the underbody protection plate mounting position;

[0009] The second structural information of the corresponding underbody protection plate is generated based on the vehicle bottom information of each preset model; both the first structural information and the second structural information include the boundary information of the outline boundary and the position information of the fastening points.

[0010] All the second structural information is fused to obtain the third structural information, which includes all the second structural information.

[0011] Generate the basic structure based on the third structural information;

[0012] Based on the second structural information of each preset vehicle model, the basic structure is punched to obtain the corresponding bottom guard plate.

[0013] In conjunction with the first aspect, in one embodiment, the peripheral components include an external bracket for the power battery and external brackets for other components on the bottom of the vehicle besides the power battery.

[0014] Each of the external supports is provided with at least one fastening point, which is used to connect with the fastening point on the bottom protective plate.

[0015] In conjunction with the first aspect, in one implementation, the process of fusing all the second structural information to obtain the third structural information specifically includes the following steps:

[0016] Extract the boundary information and point information contained in all the second structural information, and combine the dimensional allowance information of the contour boundary, the point allowance information of the fastening point, the boundary information, and the point information to generate the third structural information.

[0017] In conjunction with the first aspect, in one implementation, the step of generating the basic structure based on the third structural information specifically includes the following steps:

[0018] Configure the forming mold and cooling mold according to the third structural information, use the forming mold to form the basic structure, and use the cooling mold to cool the basic structure after forming.

[0019] In conjunction with the first aspect, in one implementation, the step of punching the basic structure according to the second structural information of each preset vehicle model to obtain the corresponding underbody protection plate specifically includes the following steps:

[0020] The punching die is configured according to the third structural information, and the punching die includes multiple punching tools corresponding to all contour boundaries and fastening points in the third structural information;

[0021] Based on the contour boundaries and fastening points in the second structural information of each preset vehicle model, the punching depth of each punching tool is adjusted to punch the basic structure and obtain the corresponding bottom guard plate.

[0022] In conjunction with the first aspect, in one embodiment, the method further includes:

[0023] Upon receiving the fourth structural information of the underbody protection plate of the new vehicle model, the basic structure is updated according to the fourth structural information, and the updated basic structure is punched to obtain the corresponding underbody protection plate.

[0024] The fourth structural information includes the outline and fastening points of the underbody protection plate of the new vehicle model.

[0025] Secondly, embodiments of this application provide a universal design and manufacturing apparatus for bottom guard plates, the universal design and manufacturing apparatus for bottom guard plates comprising:

[0026] The preprocessing module is used to acquire vehicle bottom information of multiple preset vehicle models. The vehicle bottom information includes first structural information of all peripheral components near the underbody protection plate mounting position. Based on the vehicle bottom information of each preset vehicle model, the module generates corresponding second structural information of the underbody protection plate. Both the first and second structural information include boundary information of the contour boundary and position information of the fastening points. All the second structural information is fused to obtain third structural information, which includes all the second structural information.

[0027] The manufacturing module is used to generate a basic structure based on the third structural information; and to punch the basic structure according to the second structural information of each preset vehicle model to obtain the corresponding underbody protection plate.

[0028] In conjunction with the second aspect, in one embodiment, when the preprocessing module fuses all the second structural information to obtain the third structural information, it extracts the boundary information and the point information contained in all the second structural information, and generates the third structural information by combining the dimensional allowance information of the contour boundary, the point allowance information of the fastening point, the boundary information, and the point information.

[0029] In conjunction with the second aspect, in one embodiment, when the manufacturing module generates the basic structure according to the third structural information, it configures a forming mold and a cooling mold according to the third structural information, uses the forming mold to form the basic structure, and uses the cooling mold to cool the basic structure after forming.

[0030] In conjunction with the second aspect, in one embodiment, when the manufacturing module punches the base structure according to the second structural information of each preset vehicle model to obtain the corresponding underbody protection plate, it configures a punching die according to the third structural information. The punching die includes multiple punching tools corresponding to all contour boundaries and fastening points in the third structural information. According to the contour boundaries and fastening points in the second structural information of each preset vehicle model, the punching depth of each punching tool is adjusted to punch the base structure to obtain the corresponding underbody protection plate.

[0031] The beneficial effects of the technical solutions provided in this application include:

[0032] Based on the first structural information of all peripheral parts contained in the vehicle bottom information of each preset vehicle model, the second structural information of the underbody protection plate of each preset vehicle model is generated. The contour boundary in the second structural information matches the contour boundary in the first structural information, and the fastening points in the second structural information correspond to the fastening points in the first structural information. The second structural information of the underbody protection plates of each preset vehicle model is merged to obtain the third structural information. The basic structure generated based on the third structural information includes the contour boundary and fastening points of the underbody protection plate of each preset vehicle model. After punching the basic structure according to the second structural information of each preset vehicle model, the underbody protection plate of the corresponding preset vehicle model can be obtained. By pre-generating a basic structure suitable for processing all preset vehicle models, the versatility of the basic structure obtained from the initial processing is improved, and the processing efficiency is improved when actually producing the underbody protection plates of each preset vehicle model. Attached Figure Description

[0033] Figure 1 This is a schematic flowchart of an embodiment of the universal design and manufacturing method for the bottom guard plate of this application;

[0034] Figure 2 This is a schematic diagram of the basic structure in one embodiment of this application;

[0035] Figure 3 In response to Figure 2 One of the structural schematic diagrams of the bottom protective plate after punching the foundation structure;

[0036] Figure 4 In response to Figure 2 Schematic diagram of the bottom protective plate after punching the foundation structure (Part 2);

[0037] Figure 5 for Figure 2 A schematic diagram of the structure of the central fastening point;

[0038] Figure 6 for Figure 5 Schematic diagram of the punching position of the central fastener;

[0039] Figure 7 This is a functional module schematic diagram of an embodiment of the universal design and manufacturing device for the bottom guard plate of this application. Detailed Implementation

[0040] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0041] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0042] In a first aspect, embodiments of this application provide a universal design and manufacturing method for a bottom guard plate.

[0043] In one embodiment, reference is made to Figure 1 , Figure 1 This is a schematic flowchart illustrating an embodiment of the universal design and manufacturing method for the bottom guard plate of this application. Figure 1 As shown, the standardized design and manufacturing method for the bottom guard plate includes:

[0044] Step S1: Obtain vehicle bottom information for multiple preset vehicle models. The vehicle bottom information includes the first structural information of all peripheral components near the underbody protection plate mounting position.

[0045] Step S2: Generate the corresponding second structural information of the underbody protection plate based on the vehicle bottom information of each preset vehicle model. Both the first and second structural information include the boundary information of the outline and the location information of the fastening points. Specifically, the fastening points are used to connect the underbody protection plate and the surrounding parts. In order to facilitate the installation of connecting screws and other connecting parts on them, the fastening points can generally be designed to protrude from the underbody protection plate and the surrounding parts. The protruding structure can easily cover the connecting screws and other connecting parts.

[0046] Step S3: Merge all the second structure information to obtain the third structure information, which includes all the second structure information.

[0047] Step S4: Generate the basic structure based on the third structure information.

[0048] Step S5: According to the second structural information of each preset vehicle model, punch the basic structure to obtain the corresponding bottom protection plate.

[0049] In this embodiment, the second structural information of the underbody protection plate of each preset model is generated based on the first structural information of all peripheral parts contained in the vehicle bottom information of each preset model. The contour boundary in the second structural information matches the contour boundary in the first structural information, and the fastening points in the second structural information correspond to the fastening points in the first structural information. The second structural information of the underbody protection plate of each preset model is fused to obtain the third structural information. The base structure 3 generated based on the third structural information contains the contour boundary and fastening points of the underbody protection plate of each preset model. After punching the base structure 3 according to the second structural information of each preset model, the underbody protection plate of the corresponding preset model can be obtained. By pre-generating a base structure 3 suitable for processing all preset models, the versatility of the base structure 3 obtained in the preliminary processing is improved, and the processing efficiency is improved when actually producing the underbody protection plate of each preset model.

[0050] In one specific embodiment, refer to Figures 2 to 4 , Figure 2 This is a schematic diagram of the basic structure 3 in one embodiment of this application. Figure 3 In response to Figure 2 One of the structural diagrams of the bottom protective plate after punching the foundation structure 3. Figure 4 In response to Figure 2 The second schematic diagram of the bottom protective plate after punching the foundation structure 3. Figures 2 to 4 In addition to the fastening points, the underbody protection plate is also equipped with reinforcing ribs 5 and water-permeable holes 4. In this specific embodiment, the underbody protection plate is designed and manufactured for two preset vehicle models. Taking vehicle model B and vehicle model C as examples, the underbody information of vehicle model B and vehicle model C is first obtained. Based on the outline boundaries and fastening point information of all peripheral parts near the underbody protection plate mounting position contained in the vehicle underbody information, the relevant information of the underbody protection plate adapted to the vehicle model is obtained.

[0051] Generally, the peripheral components mainly include the power battery protruding from the vehicle chassis. The underbody protection plate is located in front of and behind the power battery. Therefore, the outline boundary of the peripheral components affects the outline boundary of the underbody protection plate. When designing the outline boundary of the underbody protection plate, it is necessary to obtain the outline boundaries of the peripheral components so that the outline boundaries of the underbody protection plate and the peripheral components match each other, making the underbody protection plate and the peripheral components form a plane to reduce wind resistance. In addition, when the underbody protection plate is installed near the peripheral components, it needs to be fastened to the peripheral components. Only after fastening can the two better form a plane. Therefore, the fastening points of the peripheral components affect the fastening points of the underbody protection plate. When designing the fastening points of the underbody protection plate, it is necessary to obtain the fastening points of the peripheral components so that the fastening points of the underbody protection plate and the fastening points of the peripheral components correspond to each other, facilitating the connection and fixation of the two through the fastening points.

[0052] Based on the above analysis, after obtaining the first vehicle information of model B, the second structural information of the underbody protection plate required for model B is obtained. This second structural information includes the boundary information of the underbody protection plate's outline boundary B and the location information of the fastening point b. After obtaining the first vehicle information of model C, the second structural information of the underbody protection plate required for model C is obtained. This second structural information includes the boundary information of the underbody protection plate's outline boundary C and the location information of the fastening point c. The second structural information of models B and C is fused to obtain third structural information, which includes the boundary information of the outline boundary B, the location information of the fastening point b, the boundary information of the outline boundary C, and the location information of the fastening point c. Based on the third structural information, the base structure 3 is produced. Therefore, the base structure 3 includes both the outline boundary B and fastening point b of the underbody protection plate for model B, and the outline boundary C and fastening point c of the underbody protection plate for model C. After obtaining the basic structure 3, according to the actual generation needs, when it is necessary to generate vehicle model B, the basic structure 3 is punched according to the outline boundary B and fastening point b to obtain the bottom guard plate of vehicle model B. When it is necessary to generate vehicle model C, the basic structure 3 is punched according to the outline C and fastening point c to obtain the bottom guard plate of vehicle model C.

[0053] It should be noted that in this specific embodiment, the design and manufacture of the underbody protection plate is only for vehicle models B and C. If other vehicle models are added, it is only necessary to design the outline boundary and fastening point of other vehicle models in the basic structure 3. Furthermore, if the outline edge and fastening point of different vehicle models overlap, only one overlapping part needs to be retained. For example, if two vehicle models have fastening points of the same position and size, then only one fastening point of appropriate size is needed at that position to be applicable to various vehicle models.

[0054] In some other specific embodiments, if the outline boundary (or fastening point) of the underbody protection plate of one vehicle model completely covers the outline boundary (or fastening point) of another vehicle model, then when designing the basic structure 3, the larger outline boundary (or fastening point) of the two is retained, thereby facilitating subsequent punching processing for specific vehicle models. (Refer to...) Figure 5 and Figure 6 , Figure 5 for Figure 2 A structural diagram of the central fastening point. Figure 6 for Figure 5 A schematic diagram of the punching position of the central fastener. (See diagram below.) Figure 5 As shown, the irregular fastening point structure F in the base structure 3 is caused by the two circular fastening points of the two models being adjacent. Figure 6As shown, the solid lines represent the fastening points obtained when punching the base structure 3 for one vehicle model, and the dashed lines represent the fastening points obtained when punching the base structure 3 for another vehicle model. F is essentially a superposition feature of different structural combinations corresponding to different boundaries under different boundaries. After being formed as a whole by the forming die, the boundary B and hole position G, boundary C and hole position H are realized by the punching die variables to meet the requirements of different boundaries and different fastening point positions of the bottom guard plate.

[0055] Furthermore, in one embodiment, the aforementioned peripheral components include an external bracket for the power battery and external brackets for other components at the bottom of the vehicle besides the power battery.

[0056] Each of the aforementioned external supports is provided with at least one fastening point, which is used to connect with the fastening point on the bottom protective plate.

[0057] In this embodiment, in order to facilitate the installation of the underbody protection plate on the vehicle chassis, an external bracket is set on the power battery and other peripheral components near the mounting position of the underbody protection plate. The fastening points on one side of the peripheral components are set on the external bracket, corresponding to the fastening points on the underbody protection plate. By setting the external bracket, it is avoided to perform operations such as drilling holes in the peripheral components themselves. The underbody protection plate is connected through the external bracket. The position and structure of the external bracket can be set as needed, and the corresponding underbody protection plate can be designed, which improves the design flexibility.

[0058] Furthermore, in one embodiment, the above-described process of fusing all the second structural information to obtain the third structural information specifically includes the following steps:

[0059] Extract the boundary information and point information contained in all the second structural information, and combine them with the dimensional allowance information of the contour boundary, the point allowance information of the fastening points, the boundary information, and the point information to generate the third structural information.

[0060] In this embodiment, when all the second structures are integrated, that is, when designing the base structure 3, corresponding allowances are set for the contour boundaries and fastening points. On the one hand, this facilitates the subsequent punching operation, and on the other hand, if it is necessary to punch the underbody protection plate on the designed base structure 3 for a new vehicle model later, the pre-designed contour boundary allowance and fastening point allowance can provide the possibility of punching the new vehicle model, thereby improving the applicability of the base structure 3 and improving the flexibility and convenience of underbody protection plate manufacturing.

[0061] Furthermore, in one embodiment, the generation of the basic structure 3 based on the aforementioned third structural information specifically includes the following steps:

[0062] Configure the forming mold and cooling mold according to the third structural information, use the forming mold to form the basic structure 3, and use the cooling mold to cool the basic structure 3 after forming.

[0063] In this embodiment, compared to the prior art where forming and punching are completed in one forming step and no secondary punching is required after forming, the present invention separates the forming step and the punching step. The forming step uses a forming mold to form the basic structure 3, the cooling step uses a cooling mold to cool the basic structure 3, and the punching step uses a punching mold to perform secondary punching on the basic structure 3 to obtain the underbody protection plate of the required vehicle model. This can improve the versatility of the design and manufacturing of the underbody protection plate, as well as the versatility of the forming mold.

[0064] Furthermore, in one embodiment, the basic structure 3 is punched according to the second structural information of each preset vehicle model to obtain the corresponding underbody protection plate, specifically including the following steps:

[0065] The punching die is configured according to the third structural information. The punching die contains multiple punching tools corresponding to all contour boundaries and fastening points in the third structural information.

[0066] Based on the contour boundaries and fastening points in the second structural information of each preset vehicle model, the punching depth of each punching tool is adjusted to punch the above-mentioned basic structure 3 to obtain the corresponding bottom guard plate.

[0067] In this embodiment, the forming steps are broken down by forming the bottom guard plate parts, the forming mold is shared by combining features, and the different boundaries and hole positions of the final product are changed by changing the punching die. This can flexibly meet the development needs of the bottom guard plate to match different peripheral parts and has broad market application prospects.

[0068] Among them, the punching die is designed with multiple sets of punching tools corresponding to different car models. When punching the base structure 3, the punching depth of different sets of tools can be adjusted so that a set of punching tools corresponding to the car model punches the base structure 3 to obtain the bottom guard plate required by the car model, thereby improving the processing efficiency.

[0069] Furthermore, in one embodiment, the above method further includes:

[0070] Upon receiving the fourth structural information of the underbody protection plate of the new vehicle model, the aforementioned basic structure 3 is updated according to the fourth structural information, and the updated basic structure 3 is punched to obtain the corresponding underbody protection plate.

[0071] The aforementioned fourth structural information includes the outline and fastening points of the underbody protection plate of the new model.

[0072] In this embodiment, when the fourth structural information of the underbody protection plate of the new vehicle model is received, if the size of the underbody protection plate of the new vehicle model is larger than the existing basic structure 3, the basic structure 3 needs to be re-formed. For example, the forming mold can be modified and the basic structure 3 can be formed again. If the size of the underbody protection plate of the new vehicle model is smaller than the existing basic structure 3, the basic structure 3 can be left unchanged. Instead, the existing basic structure 3 can be punched according to the requirements of the underbody protection plate of the new vehicle model during the punching stage. For example, a punching tool corresponding to the new vehicle model can be added to the punching mold. The newly added punching tool can be used to punch the existing basic structure 3 to obtain the underbody protection plate of the new vehicle model. That is, based on this method, if it is necessary to design and manufacture the underbody protection plate of the new vehicle model, the existing method steps can be adjusted to adapt to the design and manufacture of the underbody protection plate of the new vehicle model.

[0073] Secondly, embodiments of this application also provide a universal design and manufacturing apparatus for bottom guard plates.

[0074] In one embodiment, reference is made to Figure 7 , Figure 7 This is a functional module diagram of an embodiment of the universal design and manufacturing apparatus for the bottom guard plate of this application. Figure 7 As shown, the universal design and manufacturing apparatus for the bottom guard plate includes:

[0075] Preprocessing module 1 is used to acquire vehicle bottom information for multiple preset vehicle models. This vehicle bottom information includes first structural information of all peripheral components near the underbody protection plate mounting position. Based on the vehicle bottom information of each preset vehicle model, corresponding second structural information for the underbody protection plate is generated. Both the first and second structural information include boundary information of the contour boundary and the location information of the fastening points. All of the above second structural information is fused to obtain third structural information, which includes all of the above second structural information.

[0076] Manufacturing module 2 is used to generate the base structure 3 based on the aforementioned third structural information. Based on the second structural information of each preset vehicle model, the base structure 3 is punched to obtain the corresponding underbody protection plate.

[0077] In this embodiment, the second structural information of the underbody protection plate of each preset model is generated based on the first structural information of all peripheral parts contained in the vehicle bottom information of each preset model. The contour boundary in the second structural information matches the contour boundary in the first structural information, and the fastening points in the second structural information correspond to the fastening points in the first structural information. The second structural information of the underbody protection plate of each preset model is fused to obtain the third structural information. The base structure 3 generated based on the third structural information contains the contour boundary and fastening points of the underbody protection plate of each preset model. After punching the base structure 3 according to the second structural information of each preset model, the underbody protection plate of the corresponding preset model can be obtained. By pre-generating a base structure 3 suitable for processing all preset models, the versatility of the base structure 3 obtained in the preliminary processing is improved, and the processing efficiency is improved when actually producing the underbody protection plate of each preset model.

[0078] Furthermore, in one embodiment, when the preprocessing module 1 fuses all the second structural information to obtain the third structural information, it extracts the boundary information and the point information contained in all the second structural information, and generates the third structural information by combining the dimensional allowance information of the contour boundary, the point allowance information of the fastening point, the boundary information, and the point information.

[0079] Furthermore, in one embodiment, when the manufacturing module 2 generates the basic structure 3 according to the third structural information, it configures a molding die and a cooling die according to the third structural information, uses the molding die to form the basic structure 3, and uses the cooling die to cool the basic structure 3 after forming.

[0080] Furthermore, in one embodiment, when the manufacturing module 2 punches the basic structure 3 according to the second structural information of each preset vehicle model to obtain the corresponding underbody protection plate, it configures a punching die according to the third structural information. The punching die includes multiple punching tools corresponding to all contour boundaries and fastening points in the third structural information. The punching depth of each punching tool is adjusted according to the contour boundaries and fastening points in the second structural information of each preset vehicle model to punch the basic structure 3 and obtain the corresponding underbody protection plate.

[0081] In this embodiment, the bottom plate forming process is divided into three parts: forming mold, cooling mold, and punching mold. The fastening point structure between the bottom plate and the peripheral parts is realized by the forming mold. The cooling mold usually achieves rapid solidification of the dimensions of the bottom plate product after forming by water cooling or air cooling. The punching mold is used to realize the mating boundary and mating hole position between the bottom plate and the peripheral parts.

[0082] If the bottom protection plate is defined to fit different boundary specifications of multiple battery packs during the early development stage, all the mating fastening points of the bottom protection plate are formed in the forming mold. After cooling, the punching mold can punch in sequence according to different mating boundaries and different punching depths, so as to realize the bottom protection plate to form different boundaries and holes. This can effectively reduce the mold investment caused by developing multiple sets of molds for the bottom protection plate.

[0083] If the bottom guard plate has already been developed according to the battery pack's boundaries and locations in the early stages, during the development of subsequent model upgrades, the existing forming mold can still be modified to add corresponding fastening point structures. Only a new punching die is needed to meet the new boundary and hole requirements, which can also effectively reduce the mold investment required for the development of all new bottom guard plates. To achieve different boundaries for the bottom guard plate, the combination and superposition features of different boundary requirements are designed so that the bottom guard plate parts share a common forming mold. Then, by changing the punching die, different bottom guard plates can be formed with different boundaries and holes. The change of the punching die can be achieved not only by reserving different punching depths in the early stages, but also by adding a separate punching die later to meet the needs of projects with different conditions.

[0084] The functions of each module in the aforementioned universal design and manufacturing device for bottom plates correspond to the steps in the aforementioned embodiment of the universal design and manufacturing method for bottom plates. Their functions and implementation processes will not be described in detail here.

[0085] It should be noted that the sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0086] The terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus. The terms "first," "second," and "third," etc., are used to distinguish different objects, etc., and do not indicate a sequence, nor do they limit "first," "second," and "third" to different types.

[0087] In the description of the embodiments of this application, terms such as "exemplary," "for example," or "for instance" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "exemplary," "for example," or "for instance" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary," "for example," or "for instance" is intended to present the relevant concepts in a concrete manner.

[0088] In the description of the embodiments of this application, unless otherwise stated, " / " means "or". For example, A / B can mean A or B. The "and / or" in the text is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiments of this application, "multiple" means two or more.

[0089] In some processes described in the embodiments of this application, multiple operations or steps are included in a specific order. However, it should be understood that these operations or steps may not be executed in the order they appear in the embodiments of this application, or they may be executed in parallel. The sequence number of the operation is only used to distinguish different operations, and the sequence number itself does not represent any execution order. In addition, these processes may include more or fewer operations, and these operations or steps may be executed sequentially or in parallel, and these operations or steps may be combined.

[0090] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes several instructions to cause a terminal device to execute the methods described in the various embodiments of this application.

[0091] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A universal design and manufacturing method for a bottom guard plate, characterized in that, The standardized design and manufacturing method for the bottom guard plate includes: Obtain vehicle bottom information for multiple preset vehicle models, wherein the vehicle bottom information includes the first structural information of all peripheral components of the vehicle bottom near the underbody protection plate mounting position; The second structural information of the corresponding underbody protection plate is generated based on the vehicle bottom information of each preset model; both the first structural information and the second structural information include the boundary information of the outline boundary and the position information of the fastening points. Extract the boundary information and point information contained in all the second structural information, and combine the dimensional allowance information of the contour boundary, the point allowance information of the fastening point, the boundary information, and the point information to generate third structural information, wherein the third structural information includes all the second structural information; Generate the basic structure based on the third structural information; The punching die is configured according to the third structural information, and the punching die includes multiple punching tools corresponding to all contour boundaries and fastening points in the third structural information; Based on the contour boundaries and fastening points in the second structural information of each preset vehicle model, the punching depth of each punching tool is adjusted to punch the basic structure and obtain the corresponding bottom guard plate. The step of generating the basic structure based on the third structural information specifically includes the following steps: Configure the forming mold and cooling mold according to the third structural information, use the forming mold to form the basic structure, and use the cooling mold to cool the basic structure after forming.

2. The universal design and manufacturing method for the bottom guard plate as described in claim 1, characterized in that, The peripheral components include the external bracket for the power battery and the external bracket for other components on the bottom of the vehicle besides the power battery. Each of the external supports is provided with at least one fastening point, which is used to connect with the fastening point on the bottom protective plate.

3. The universal design and manufacturing method for the bottom guard plate as described in claim 1, characterized in that, The method further includes: Upon receiving the fourth structural information of the underbody protection plate of the new vehicle model, the basic structure is updated according to the fourth structural information, and the updated basic structure is punched to obtain the corresponding underbody protection plate. The fourth structural information includes the outline and fastening points of the underbody protection plate of the new vehicle model.

4. A universal design and manufacturing device for bottom protective plates, characterized in that, The universal design and manufacturing device for the bottom guard plate includes: A preprocessing module is used to acquire vehicle bottom information of multiple preset vehicle models. The vehicle bottom information includes first structural information of all peripheral components near the underbody protection plate mounting position. Based on the vehicle bottom information of each preset vehicle model, second structural information of the corresponding underbody protection plate is generated. Both the first and second structural information include boundary information of the contour boundary and position information of fastening points. The boundary information and position information contained in all the second structural information are extracted, and third structural information is generated by combining the dimensional allowance information of the contour boundary, the position allowance information of the fastening points, the boundary information, and the position information. The third structural information includes all the second structural information. The manufacturing module is used to generate a basic structure based on the third structural information; configure a punching die based on the third structural information, the punching die containing multiple punching tools corresponding to all contour boundaries and fastening points in the third structural information; and adjust the punching depth of each punching tool according to the contour boundaries and fastening points in the second structural information of each preset vehicle model to punch the basic structure and obtain the corresponding bottom guard plate. When generating the basic structure based on the third structural information, the manufacturing module configures the forming mold and the cooling mold according to the third structural information, uses the forming mold to form the basic structure, and uses the cooling mold to cool the basic structure after forming.

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