Automobile part design method and related equipment

Abstract

The embodiment of the invention relates to the field of automobiles, in particular to an automobile part design method and related equipment. The method comprises the steps that a target part to be adjusted is determined, and an opponent part of the target part is determined; wherein the fillet position of the target part is lower than or equal to the fillet position of the opponent part; the section of the opponent piece is determined; the section comprises an appearance surface, a fillet and a flange of the opponent piece; generating an offset surface of the section in the direction of the target part; obtaining an accurate boundary between the appearance surface of the target part and the fillet of the target part based on the horizontal position of the appearance surface of the target part and the offset surface; and reconstructing a fillet and a flange of the target part based on the accurate boundary.

Description

Technical Field

[0001] The embodiments of the present invention relate to the automotive field, and in particular to an automotive parts design method and related equipment. Background Art

[0002] During the development and design of the car shell, the gap between parts needs to be considered. During the design process, the gap between parts needs to be adjusted according to the dimensional tolerance specifications. Specifically, for part L1 and its counterpart L2, it is necessary to move the tool to make the flange F2 of part L2 close to the flange F1 of part L1, and then chamfer the flange F2 and the appearance surface of part L2 to obtain the chamfer R2. Finally, the minimum distance between the lower boundary of chamfer R2 and the flange F1 of part L1 is determined to obtain the gap between part L1 and part L2. If the measured gap does not meet the requirements, the position of part L2 needs to be moved and the gap needs to be remeasured. It can be seen that the current design method is inefficient, and the different step differences and flange relationships between parts L1 and L2 affect the complexity of gap adjustment. Therefore, how to quickly and accurately adjust the position of the parts to obtain chamfers and flanges with accurate gaps is a problem that needs to be solved urgently. Summary of the invention

[0003] In view of this, the present application provides an automobile part design method and related equipment to increase the design efficiency of automobile parts.

[0004] In a first aspect, an embodiment of the present invention provides an automobile part design method, comprising: Determine a target part to be adjusted, and determine a counterpart part of the target part; wherein the fillet position of the target part is lower than or equal to the fillet position of the counterpart part; Determine the cross section of the counterpart; the cross section includes the exterior surface, fillet and flange of the counterpart; generating an offset surface of the cross section in the direction of the target part; Obtaining an accurate boundary between the appearance surface of the target part and the fillet of the target part based on the horizontal position of the appearance surface of the target part and the offset surface; The fillets and flanges of the target part are reconstructed based on the accurate boundaries.

[0005] In a possible implementation, generating an offset surface of the cross section in a direction of the target part includes: Determining a first offset distance according to a typical cross section of a target vehicle corresponding to the target part; The cross section of the opponent part is offset by the first offset distance in the direction of the target part to obtain the offset surface.

[0006] In a possible implementation, obtaining an accurate boundary between the appearance surface of the target part and the fillet of the target part based on the horizontal position of the appearance surface of the target part and the offset surface includes: Generate a target chamfer according to the horizontal position of the appearance surface of the target part and the offset surface; the radius of the target chamfer is determined according to the radius of the fillet of the target part; Determine an intersection boundary between a horizontal plane where the appearance surface is located and the target chamfer; The intersection boundary is determined as the exact boundary.

[0007] In a second aspect, an embodiment of the present invention provides an automobile parts design system, comprising: A part determination module, used to determine a target part to be adjusted, and to determine a counterpart part of the target part; wherein the fillet position of the target part is lower than or equal to the fillet position of the counterpart part; A section determination module, used to determine the section of the counterpart; the section includes the exterior surface, fillet and flange of the counterpart; An offset module, used for generating an offset surface of the cross section in the direction of the target part; A processing module, configured to obtain an accurate boundary between the appearance surface of the target part and the fillet of the target part based on the horizontal position of the appearance surface of the target part and the offset surface; A construction module is used to reconstruct the fillet and flange of the target part based on the accurate boundary.

[0008] In a possible implementation, the offset module is specifically used to determine a first offset distance according to a typical cross-section of a target vehicle corresponding to the target part; and offset the cross-section of the opponent part in the direction of the target part by the first offset distance to obtain the offset surface.

[0009] In one possible implementation, the processing module is specifically used to generate a target chamfer based on the horizontal position of the appearance surface of the target part and the offset surface; the radius of the target chamfer is determined according to the radius of the fillet of the target part; the intersection boundary between the horizontal plane where the appearance surface is located and the target chamfer is determined; and the intersection boundary is determined as the accurate boundary.

[0010] In a third aspect, an embodiment of the present invention provides an electronic device, including: at least one processor; and at least one memory in communication with the processor, wherein: The memory stores program instructions executable by the processor, and the processor calls the program instructions to execute the method described in the first aspect.

[0011] In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium storing computer instructions that cause a computer to execute the method described in the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0013] Figure 1 A flowchart of a method for designing automotive parts provided by an embodiment of the present invention; Figure 2 A schematic diagram of a target part and a counterpart of the target part provided by an embodiment of the present invention; Figure 3a A schematic diagram of a flanging relationship with zero step provided by an embodiment of the present invention; Figure 3b Another schematic diagram of a flanging relationship with zero step provided by an embodiment of the present invention; Figure 3c Another schematic diagram of a flanging relationship with zero step provided by an embodiment of the present invention; Figure 4a A schematic diagram of a flanging relationship with negative step provided by an embodiment of the present invention; Figure 4b Another schematic diagram of a flanging relationship with negative step provided by an embodiment of the present invention; Figure 4c Another schematic diagram of a flanging relationship with negative step provided by an embodiment of the present invention; Figure 5a A schematic diagram of a flanging relationship with positive step provided by an embodiment of the present invention; Figure 5b Another schematic diagram of a flanging relationship with positive step provided by an embodiment of the present invention; Figure 5c Another schematic diagram of a flanging relationship with positive step provided by an embodiment of the present invention; Figure 6 A schematic diagram of a bias surface provided by an embodiment of the present invention; Figure 7 A schematic diagram of an accurate boundary provided by an embodiment of the present invention; Figure 8 A schematic diagram of the reconstruction of a target part provided by an embodiment of the present invention Fig. 9A schematic diagram of the structure of an automobile parts design system provided by an embodiment of the present invention; Fig.10 A schematic diagram of the structure of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0014] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0015] It should be clear that the described embodiments are only 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 ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0016] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0017] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0018] In order to improve the design efficiency of dimensional tolerance specifications in the process of automobile styling development, an embodiment of the present invention provides an automobile part design method. Figure 1 A flow chart of a method for designing automotive parts is provided for an embodiment of the present invention. Figure 1 As shown in , the method includes: Step 101, determining a target part to be adjusted and determining a counterpart part of the target part, wherein the fillet position of the target part is lower than or equal to the fillet position of the counterpart part.

[0019] The target part and the opponent part of the target part can be implemented in the form of automobile appearance parts. For example, the target part is a fuel filler cap of an automobile, and the opponent part is a car shell adjacent to the fuel filler cap. Alternatively, the opponent part is a fuel filler cap, and the target part is a car shell adjacent to the fuel filler cap. Figure 2 A schematic diagram of a target part and an opponent part of the target part provided by an embodiment of the present invention. Figure 2As shown in , part 201 is the fuel filler cap, and part 202 is the car shell adjacent to the fuel filler cap. When the fillet position of part 201 is higher than the fillet position of part 202, part 201 is the opponent part, and part 202 is the target part. When the fillet position of part 202 is higher than the fillet position of part 201, part 201 is the target part, and part 202 is the opponent part.

[0020] In some embodiments, the step difference between the two parts will affect the complexity of the gap adjustment between the two parts. According to the definition of the dimensional tolerance specification, the step difference between the two parts can be divided into three types: zero step difference, negative step difference and positive step difference. Each step difference relationship includes three different flanging relationships.

[0021] Figure 3a , Figure 3b as well as Figure 3c The three diagrams of flange relationships under zero step difference provided by the embodiments of the present invention are schematic cross-sectional diagrams. They include part L1 and part L2. Part L1 is composed of appearance surface S1, fillet R1 and flange F1. Part L2 is composed of appearance surface S2, fillet R2 and flange F2. In addition, the dotted lines shown in the figure are the boundaries between the appearance surface and the fillet, and the boundaries between the fillet and the flange. Figure 3a In the flange relationship shown in , according to the definition of the dimensional tolerance specification, the gap between part L1 and part L2 is the minimum distance from R2 to F1. Figure 3b In the flange relationship shown in , the gap between part L1 and part L2 is the minimum distance from R2 to F1. Figure 3c In the flange relationship shown in , the gap between part L1 and part L2 is the minimum distance from R2 to R1.

[0022] Figure 4a , Figure 4b as well as Figure 4c They are schematic diagrams of three flange relationship under negative step difference provided by embodiments of the present invention. Figure 4a The gap between part L1 and part L2 is the minimum distance from R2 to F1. Figure 4b The gap between part L1 and part L2 is the minimum distance from R2 to F1. Figure 3c The gap between part L1 and part L2 is the minimum distance from R2 to F1.

[0023] Figure 5a , Figure 5b as well as Figure 5c They are schematic diagrams of three flanging relationships under positive step difference provided by embodiments of the present invention, Figure 5a The gap between part L1 and part L2 is the minimum distance between R1 and R2. Figure 5bThe gap between part L1 and part L2 is the minimum distance between R1 and F2. Figure 5c The gap between part L1 and part L2 is the minimum distance between R1 and F2.

[0024] From the above content, it can be seen that no matter what kind of step difference relationship there is, the gap between two parts can be attributed to the minimum distance from the part with the lower fillet position to the other part. Based on this conclusion, an embodiment of the present invention provides a design method for automotive parts, in which the part with the lower fillet position is determined as the target part, and the other part is determined as the opponent part, and then the fillet position and flange of the target part are adjusted to obtain fillets and flanges that meet the gap requirements.

[0025] Step 102, determining the cross section of the hand piece. The cross section includes the exterior surface, fillet and flange of the hand piece.

[0026] Step 103, generating an offset surface of the cross section in the direction of the target part.

[0027] The first offset distance may be determined based on a typical cross section of the target vehicle corresponding to the target part, and then the cross section of the opponent part is offset by the first offset distance in the direction of the target part to obtain an offset surface. Figure 6 A schematic diagram of a bias surface provided by an embodiment of the present invention. Figure 6 As shown in , the offset surface M2 can be obtained by offsetting the cross section M1 of the opponent part toward the target part by a first offset distance.

[0028] Step 104 , obtaining an accurate boundary between the appearance surface of the target part and the fillet of the target part based on the horizontal position of the appearance surface of the target part and the offset surface.

[0029] Based on design requirements, the height of the fillet between the target part and the counterpart is fixed, so the fillet and appearance of the target part can only be adjusted horizontally. Therefore, after determining the exact boundary between the fillet and the appearance of the target part, the fillet and flange of the target part can be rebuilt based on the boundary without manual position adjustment of the target part.

[0030] Specifically, a target chamfer may be generated according to the horizontal position of the appearance surface of the target part and the offset surface. The radius of the target chamfer is determined according to the radius of the fillet of the target part. The intersection boundary between the horizontal plane where the appearance surface is located and the target chamfer is determined. The intersection boundary is determined as an accurate boundary.

[0031] Figure 7 An accurate boundary diagram is provided for an embodiment of the present invention. Figure 7 As shown in Figure 6After obtaining the offset surface M2, the offset surface M2 and the appearance surface S1 of the target part are chamfered to obtain the target chamfer R3. Then, the intersection position between the target chamfer R3 and the appearance surface S1 of the target part is determined, and the intersection position is the accurate boundary B.

[0032] Step 105 , reconstructing the fillet and flange of the target part based on the accurate boundary.

[0033] Among them, the accurate boundary is used as the intersection boundary between the fillet and the appearance surface of the target part, and the fillet and flange of the target part are reconstructed, so that the target part and the opponent part that meet the design of dimensional tolerance specifications can be obtained. Figure 8 A schematic diagram of target part reconstruction provided by an embodiment of the present invention. Figure 8 As shown in Figure 7 The accurate boundary B obtained in the reconstruction of the fillet and flange of the target part can be obtained Figure 8 The target part is shown in . The methods of generating fillets and flanges in different surface modeling software are different, and they can be built according to the specific tool commands of the software.

[0034] The automotive parts design method provided by the embodiment of the present invention derives a universal method for controlling the clearance by defining the clearance under different step difference relationships, thereby reducing the trial-and-error modeling process and significantly improving the design efficiency. The clearance value can be accurately controlled by operations such as modeling software offset and chamfering, and the numerical accuracy is basically close to the software setting tolerance. In addition, the operation process of the dimensional tolerance specification clearance adjustment of the A-side engineer is clarified, and the clearance adjustment operation steps are unified to ensure that the numerical error of the dimensional tolerance specification clearance adjusted by different engineers is stable and controllable, thereby improving the design efficiency.

[0035] Corresponding to the above-mentioned automobile part design method, an embodiment of the present invention provides an automobile part design system. Fig. 9 FIG. 1 is a schematic diagram of the structure of an automobile parts design system provided by an embodiment of the present invention. Fig. 9 As shown in , the automobile part design system includes: a part determination module 901, a section determination module 902, an offset module 903, a processing module 904 and a construction module 905.

[0036] The part determination module 901 is used to determine the target part to be adjusted and the counterpart part of the target part, wherein the fillet position of the target part is lower than or equal to the fillet position of the counterpart part.

[0037] The cross-section determination module 902 is used to determine the cross-section of the counterpart. The cross-section includes the exterior surface, fillet and flange of the counterpart.

[0038] The offset module 903 is used to generate an offset surface of the cross section in the direction of the target part.

[0039] The offset module 903 is specifically used to determine a first offset distance according to a typical cross section of a target vehicle corresponding to the target part, and offset the cross section of the opponent part in the direction of the target part by the first offset distance to obtain an offset surface.

[0040] The processing module 904 is used to obtain the accurate boundary between the appearance surface of the target part and the fillet of the target part based on the horizontal position of the appearance surface of the target part and the offset surface.

[0041] The processing module 904 is specifically used to generate a target chamfer according to the horizontal position of the appearance surface of the target part and the offset surface. The radius of the target chamfer is determined according to the radius of the fillet of the target part. The intersection boundary between the horizontal plane where the appearance surface is located and the target chamfer is determined. The intersection boundary is determined as an accurate boundary.

[0042] The construction module 905 is used to reconstruct the fillet and flange of the target part based on the accurate boundary.

[0043] Fig. 9 The automotive parts design system provided by the illustrated embodiment can be used to perform Figure 1-Figure 8 The technical solution of the method embodiment shown, its implementation principle and technical effects can be further referred to the relevant description in the method embodiment.

[0044] Fig.10 A schematic diagram of the structure of an electronic device provided by an embodiment of the present invention is shown in FIG. Fig.10 As shown, the electronic device may include at least one processor and at least one memory in communication with the processor, wherein the memory stores program instructions executable by the processor, and the processor calls the program instructions to execute the instructions of this specification. Figure 1-8 The illustrated embodiment provides a method for designing automobile parts.

[0045] like Fig.10 As shown, the electronic device is in the form of a general computing device. The components of the electronic device may include but are not limited to: one or more processors 1010, a communication interface 1020 and a memory 1030, and a communication bus 1040 connecting different system components (including the memory 1030, the communication interface 1020 and the processor 1010).

[0046] The communication bus 1040 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, a graphics acceleration port, a processor, or a local bus using any of a variety of bus structures. For example, these architectures include but are not limited to Industry Standard Architecture (ISA) bus, Micro Channel Architecture (MAC) bus, Enhanced ISA bus, Video Electronics Standards Association (VESA) local bus, and Peripheral Component Interconnection (PCI) bus.

[0047] Electronic devices typically include a variety of computer system readable media. These media can be any available media that can be accessed by the electronic device, including volatile and non-volatile media, removable and non-removable media.

[0048] The memory 1030 may include a computer system readable medium in the form of a volatile memory, such as a random access memory (RAM) and / or a cache memory. The electronic device may further include other removable / non-removable, volatile / non-volatile computer system storage media. The memory 1030 may include at least one program product having a set (e.g., at least one) of program modules, which are configured to perform the functions of each embodiment of the present specification.

[0049] A program / utility having a set (at least one) of program modules may be stored in the memory 1030, such program modules including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which or some combination thereof may include the implementation of a network environment. The program modules generally perform the functions and / or methods of the embodiments described in this specification.

[0050] The processor 1010 executes various functional applications and data processing by running the programs stored in the memory 1030, such as implementing the present specification. Figure 1-8 The illustrated embodiment provides a method for designing automobile parts.

[0051] The embodiment of the present specification provides a computer program product, the computer program product includes a computer program, when the computer program is executed by a processor, implements the execution of the present specification Figure 1-8 The illustrated embodiment provides a method for designing automobile parts.

[0052] The embodiment of the present specification provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, wherein the computer instructions enable the computer to execute the present specification. Figure 1-8 The illustrated embodiment provides a method for designing automobile parts.

[0053] The above-mentioned computer-readable storage medium may adopt any combination of one or more computer-readable media. The computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination thereof. More specific examples (non-exhaustive list) of computer-readable storage media include: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ReadOnly Memory; hereinafter referred to as: ROM), an erasable programmable read-only memory (Erasable Programmable ReadOnly Memory; hereinafter referred to as: EPROM) or flash memory, optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In this document, a computer-readable storage medium may be any tangible medium containing or storing a program that may be used by or in combination with an instruction execution system, device or device.

[0054] The above is a description of a specific embodiment of the specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0055] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of this specification. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0056] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this specification, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0057] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of this specification includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of this specification belong.

[0058] The word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.

[0059] It should be noted that the devices involved in the embodiments of this specification may include but are not limited to personal computers (Personal Computer; hereinafter referred to as: PC), personal digital assistants (Personal Digital Assistant; hereinafter referred to as: PDA), wireless handheld devices, tablet computers (Tablet Computer), mobile phones, MP3 displays, MP4 displays, etc.

[0060] In the several embodiments provided in this specification, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms. In addition, each functional unit in each embodiment of this specification may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0061] The above-mentioned integrated unit implemented in the form of a software functional unit can be stored in a computer-readable storage medium. The above-mentioned software functional unit is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a connector, or a network device, etc.) or a processor (Processor) to perform some steps of the method described in each embodiment of this specification. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory; hereinafter referred to as: ROM), random access memory (Random Access Memory; hereinafter referred to as: RAM), disk or optical disk and other media that can store program codes.

[0062] The above description is only a preferred embodiment of this specification and is not intended to limit this specification. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this specification should be included in the scope of protection of this specification.

[0063] In this specification, the same or similar parts between the various embodiments can be referred to each other. In particular, for the device embodiment and the terminal embodiment, since they are basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description in the method embodiment.

Claims

1. A method for designing automobile parts, characterized in that: include: Determine a target part to be adjusted, and determine a counterpart part of the target part; wherein the fillet position of the target part is lower than or equal to the fillet position of the counterpart part; Determine the cross section of the counterpart; the cross section includes the exterior surface, fillet and flange of the counterpart; generating an offset surface of the cross section in the direction of the target part; Obtaining an accurate boundary between the appearance surface of the target part and the fillet of the target part based on the horizontal position of the appearance surface of the target part and the offset surface; The fillets and flanges of the target part are reconstructed based on the accurate boundaries.

2. The method according to claim 1, characterized in that Generating an offset surface of the section toward the target part includes: Determining a first offset distance according to a typical cross section of a target vehicle corresponding to the target part; The cross section of the opponent part is offset by the first offset distance in the direction of the target part to obtain the offset surface.

3. The method according to claim 1, characterized in that The step of obtaining an accurate boundary between the appearance surface of the target part and the fillet of the target part based on the horizontal position of the appearance surface of the target part and the offset surface comprises: Generate a target chamfer according to the horizontal position of the appearance surface of the target part and the offset surface; the radius of the target chamfer is determined according to the radius of the fillet of the target part; Determine an intersection boundary between a horizontal plane where the appearance surface is located and the target chamfer; The intersection boundary is determined as the exact boundary.

4. An automobile parts design system, characterized in that: include: A part determination module, used to determine a target part to be adjusted, and to determine a counterpart part of the target part; wherein the fillet position of the target part is lower than or equal to the fillet position of the counterpart part; A section determination module, used to determine the section of the counterpart; the section includes the exterior surface, fillet and flange of the counterpart; An offset module, used for generating an offset surface of the cross section in the direction of the target part; A processing module, configured to obtain an accurate boundary between the appearance surface of the target part and the fillet of the target part based on the horizontal position of the appearance surface of the target part and the offset surface; A construction module is used to reconstruct the fillet and flange of the target part based on the accurate boundary.

5. The system according to claim 4, characterized in that The offset module is specifically used to determine a first offset distance according to a typical cross section of a target vehicle corresponding to the target part; and offset the cross section of the opponent part in the direction of the target part by the first offset distance to obtain the offset surface.

6. The system according to claim 4, characterized in that The processing module is specifically used to generate a target chamfer according to the horizontal position of the appearance surface of the target part and the offset surface; the radius of the target chamfer is determined according to the radius of the fillet of the target part; determine the intersection boundary between the horizontal plane where the appearance surface is located and the target chamfer; and determine the intersection boundary as the accurate boundary.

7. An electronic device, characterized in that: include: at least one processor; as well as at least one memory in communication with the processor, wherein: The memory stores program instructions executable by the processor, and the processor can execute the method according to any one of claims 1 to 3 by calling the program instructions.

8. A computer-readable storage medium storing computer instructions, wherein the computer instructions enable the computer to execute the method according to any one of claims 1 to 3.

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