Body-in-white data inspection method
By setting up guide items and standard libraries in the computer-aided testing system, the problem of relying on experience for white body data inspection was solved, achieving efficient and comprehensive data inspection and improving the quality and efficiency of vehicle prototyping.
Patent Information
- Application Number
- CN202511555701.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-28
- Publication Date
- 2026-03-10
AI Technical Summary
In the existing technology, the inspection of vehicle body-in-white data relies on the experience of the inspectors, which leads to low inspection efficiency, easy omissions or misjudgments, and affects the cost, cycle and quality of vehicle prototyping.
The computer-aided inspection system sets up guidance items, including primary and secondary inspection items, and establishes a standard library. The system analyzes the body-in-white data through algorithmic logic units to generate problem report files, reducing the operational difficulty for inspectors and improving efficiency.
It enables efficient and comprehensive inspection of body-in-white data, accurately identifies high-frequency and critical issues, reduces resource waste, improves work efficiency, and simplifies the inspection process.
Smart Images
Figure CN121637650A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of vehicles, in particular to a body-in-white data inspection method. BACKGROUND
[0002] In the process of automobile design and development, vehicle trial production is an important link to verify product design. The structure of the vehicle body-in-white is composed of many complex parts, including sheet metal parts, sealing parts, cast parts, composite material parts and various types of components. The forming process and mutual connection process of these components have many problems, and checking the rationality of these structures is an essential step in the vehicle trial production verification process. The existing data inspection items are numerous, and the data inspection work has high requirements for the inspector, and only experienced practitioners can find problems in the data. If effective inspection cannot be carried out, it will have an impact on cost, cycle and quality in the later mass production start. SUMMARY
[0003] The present application aims to provide a body-in-white data inspection method and a vehicle to solve one or more technical problems existing in the prior art, at least to provide a beneficial choice or create conditions.
[0004] To solve the above technical problems, the technical scheme adopted is: Firstly, the present application provides a body-in-white data inspection method, in which a guide item for inspecting body-in-white data is pre-set in a computer-aided detection system, the guide item includes a plurality of first inspection items, and a plurality of second inspection items further subdivided for each first inspection item; wherein the first inspection items include data static inspection, process inspection, opening and closing inspection, sealing inspection, bill of materials inspection, and movement inspection which affect the trial production link, and the second inspection items include pre-set second items and second item inspection contents; a standard library is also pre-established in the computer-aided detection system, the standard library stores detection standard parameter files, the detection standard parameter files include judgment conditions corresponding to each second item, and when data detection, the computer-aided detection system extracts judgment conditions matched with the second item inspection contents from the detection standard parameter files; according to the guidance of the first inspection items, the second items and the second item inspection contents, the computer-aided detection system analyzes and operates the body-in-white data through an algorithm logic unit, obtains the measurement value and the judgment condition corresponding to the second item inspection contents, and compares the measurement value with the judgment condition, and the comparison result is generated as a problem report file.
[0005] The beneficial effects of this invention are as follows: In the computer-aided testing system, static data inspection, process inspection, opening and closing component inspection, sealing inspection, bill of materials inspection, and motion inspection are set as preset inspection items. By generating problem report documents through guided items, high-frequency and significant problems in the trial production stage can be efficiently and comprehensively identified. Inspectors do not need to rely on their own work experience to determine which items need to be inspected, which reduces the operational difficulty for inspectors and improves work efficiency. Furthermore, the problem report documents can intuitively reflect the trial production stage that erroneous data of the body-in-white may affect, which is conducive to inspectors quickly understanding the report content.
[0006] As a further improvement to the above technical solution, the secondary inspection item also includes an indicator of the inspection area, and the inspection method further includes: after determining the secondary item to be inspected, locking the inspection object according to the indicator of the inspection area, and then performing data inspection according to the inspection content of the secondary item. This setting allows for more accurate data inspection.
[0007] As a further improvement to the above technical solution, the inspection method also includes adding an optimization suggestion item to the problem report file after erroneous data is detected, for filling in optimization suggestions. By adding an optimization suggestion instruction, the data inspection results are fed back in the form of modification suggestions, which can effectively improve the efficiency of data modification.
[0008] As a further improvement to the above technical solution, the primary inspection items and the secondary inspection items are presented in a tabular model during the data inspection process. This allows any inspector to clearly understand the data content to be inspected.
[0009] As a further improvement to the above technical solution, the secondary items corresponding to the static data inspection include at least: fillet fit inspection, fit inspection, interference inspection, stop end inspection, symmetrical part error prevention inspection, welding adhesive application inspection, adhesive application gap inspection, riveting position structure inspection, welding position structure inspection, weld point marking inspection, and weld point level inspection, in order to obtain some error data of the body-in-white in a static state.
[0010] As a further improvement to the above technical solution, the secondary items corresponding to the process inspection items include at least: positioning hole inspection, through hole inspection, stud welding position inspection, welding plate thickness and bottom hole diameter inspection of welding standard parts, and non-circular welding nut rotation inspection, in order to obtain some error data that affects the body-in-white assembly process and welding process.
[0011] As a further improvement to the above technical solution, the secondary items corresponding to the opening and closing parts inspection items shall at least include: closing gap inspection, door lock adjustment inspection, door inner panel drainage hole position inspection, door reinforcement plate obstruction inspection, door cover hinge adjustment amount inspection, and front and rear cover adjustment direction inspection, so as to obtain some error data of the opening and closing parts.
[0012] As a further improvement to the above technical solution, the secondary items corresponding to the sealing inspection items include at least: welding sealing structure inspection, painting sealing structure inspection, and sealing strip installation stop inspection, in order to obtain some error data of the body-in-white sealing structure.
[0013] As a further improvement to the above technical solution, the secondary items corresponding to the bill of materials inspection items include at least: bill of materials and data information consistency check, in order to obtain erroneous data that do not match the body-in-white data with the bill of materials.
[0014] As a further improvement to the above technical solution, the secondary items corresponding to the motion inspection items include at least: door assembly inspection, in order to obtain erroneous data affecting door assembly. Attached Figure Description
[0015] Figure 1 This is a flowchart illustrating a method for checking body-in-white data according to an embodiment of the present invention. Detailed Implementation
[0016] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.
[0017] In the description of this invention, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.
[0018] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.
[0019] In the automotive design and development process, vehicle prototyping is a crucial step in validating product designs. The body-in-white (BIS) serves as a vital carrier for many components of the vehicle, and since most areas of the BIS are not visible after assembly, problems cannot be promptly identified during full-vehicle testing, potentially leading to some issues being leaked to the R&D department. Therefore, the accuracy of BIS data is a prerequisite for achieving high-quality vehicles. During the prototyping phase, checking the BIS data first helps reduce the cost of later design changes and minimizes resource waste. However, because BIS data involves a wide variety of components and inspection items, omissions and misjudgments are common during actual data inspection. Furthermore, data inspection relies heavily on the experience of the inspectors; inexperienced inspectors may not know which items require focused attention, hindering the effective detection of potential problems within the data.
[0020] In order to ensure that potential problems can be fully and efficiently discovered during the body-in-white data inspection stage, the inventors conducted in-depth research on the problems that occurred during vehicle prototyping and developed the inspection method of this invention.
[0021] The following is a detailed description of the body-in-white data inspection method of the present invention.
[0022] The inspection method includes the following steps: A computer-aided testing system is pre-set with guidelines for inspecting body-in-white data. These guidelines include several primary inspection items and several secondary inspection items further subdivided into each primary inspection item. The primary inspection items include static data inspection, process inspection, opening and closing component inspection, sealing inspection, bill of materials inspection, and motion inspection affecting the trial production stage. The secondary inspection items include pre-set secondary items and their inspection contents. A standard library is also pre-established within the computer-aided testing system, storing standard parameter files for testing. These standard parameter files include judgment conditions corresponding to each secondary item. During data testing, the computer-aided testing system extracts judgment conditions from the standard parameter files that match the inspection contents of the secondary items. Based on the guidelines for the primary, secondary, and secondary item inspection items, the computer-aided testing system analyzes and processes the body-in-white data through its algorithm logic unit, obtaining the measurement values and judgment conditions corresponding to the secondary item inspection contents. The measurement values are then compared with the judgment conditions, and the comparison results are generated as a problem report file.
[0023] In some embodiments, the computer-aided inspection system is a CATIA system, and the body-in-white data inspection method of the present invention is performed based on the knowledge engineering module of CATIA.
[0024] Testing standard parameter files can be obtained from various design or production specifications, such as design specifications, production process specifications, and assembly process specifications. Pre-storing these testing standard parameter files in a computer-aided testing system eliminates the need for manual interpretation of data test results during each inspection, thus improving data inspection efficiency.
[0025] Understandably, more inspection items lead to more accurate data, enabling the early identification of more potential problems during the data processing stage, preventing these issues from entering vehicle trial production and reducing resource waste. However, too many inspection items can hinder inspection efficiency. Therefore, this invention summarizes and categorizes problems encountered during vehicle trial production, using high-frequency and high-impact issues as guiding items for body-in-white data inspection. These problems can be broadly classified as follows: 1. Static structural fit issues, such as interference or failure to meet spacing requirements; 2. Symmetrical component issues; 3. Welding and riveting issues. Welding and riveting involve component manufacturing; if these issues are not detected during data inspection, their exposure during trial production may render parts unusable and difficult to repair, directly impacting vehicle assembly progress; 4. Hole placement issues. Holes are typically small structures and numerous, making design errors prone to occur; 5. Door and front / rear cover issues. Front and rear covers refer to the front engine hood and rear trunk lid; 6. Sealing issues; 7. Errors in the bill of materials (BOM). The BOM is the source of production processing, and errors can significantly impact production and assembly.
[0026] This invention identifies a method for inspecting body-in-white data during the vehicle prototyping stage based on the aforementioned high-frequency and significant issues. First, these issues are categorized. Since the prototyping process includes multiple stages such as freezing the body-in-white data model, creating and outputting the bill of materials (BOM), parts production, assembly process evaluation, assembly debugging, and sealing checks, the data inspection guidelines are set into six categories to ensure that the problem report clearly reflects the potential impact of erroneous body-in-white data on the prototyping stage. These categories include static data inspection, process inspection, opening and closing component inspection, sealing check, BOM inspection, and motion inspection. Then, sub-inspection items are further categorized into these main categories. Specifically, static data inspection, process inspection, opening and closing component inspection, sealing check, BOM inspection, and motion inspection are designated as primary inspection items. Further, sub-inspection items are designated as secondary inspection items, each including both the secondary item and its inspection content.
[0027] For example, the first-level inspection item is a static inspection of the data structure, and one of the second-level inspection items is a fillet fit inspection. Corresponding to the fillet fit inspection, the content of the second-level item is also specified. This second-level item inspection content could be: detecting the maximum gap between the inner fillet of the outer sheet metal part and the outer fillet of the inner sheet metal part. These inspection items are pre-set and stored in the computer-aided inspection system before data detection.
[0028] According to the inspection method of the present invention, in the computer-aided testing system, static data inspection, process inspection, opening and closing component inspection, sealing inspection, bill of materials inspection, and motion inspection are preset inspection items. By generating a problem report document through the guide items, high-frequency and significant problems in the trial production stage can be efficiently and comprehensively identified. Inspectors do not need to rely on their own work experience to determine which items need to be inspected, which reduces the operational difficulty for inspectors, improves work efficiency, and the problem report document can also intuitively reflect the trial production stage that erroneous data of the body-in-white may affect, which is conducive to inspectors quickly understanding the report content.
[0029] Furthermore, the secondary inspection items also include indications of the inspection area. The inspection method involves, after determining the secondary item to be inspected, locking the inspection object according to the inspection area indications, and then performing data checks based on the secondary item's inspection content. For example, if the form lists "locating hole inspection" as the secondary inspection item and the inspection area as the floor, then only the floor needs to be checked. Or, if the form lists "rounded corner fit inspection" as the secondary inspection item and the inspection area as the entire vehicle, then the rounded corner structure of the entire vehicle needs to be checked. This setup ensures precise data checks.
[0030] Furthermore, the inspection method also includes adding an optimization suggestion section to the problem report file after erroneous data is detected, for users to fill in optimization suggestions. By adding optimization suggestion instructions, the data inspection results are fed back in the form of modification suggestions, which can effectively improve the efficiency of data modification.
[0031] Furthermore, the primary and secondary inspection items are presented in a tabular model during the data inspection process, which helps any inspector to understand the data content to be inspected. In some embodiments, the inspection content of the secondary items is also displayed in the tabular model.
[0032] In the above data inspection methods, the methods by which the algorithm logic unit analyzes the body-in-white data include: A measurement template is constructed, and measurement objects are defined in CATIA's Knowledge Engineering module. These objects are filtered by feature names in the data model's structure tree. Automatic measurement rules are written programmatically, and the rule template is associated with the body-in-white data. After starting the inspection, CATIA's measurement tools are invoked to automatically scan corresponding features in the data model, such as weld points, arcs, surfaces, welding lines, and adhesive application trajectories. Corresponding measurements are triggered according to the rules, such as performing batch measurements on fillet radius.
[0033] Furthermore, the secondary inspection items corresponding to static data inspection, process inspection, opening and closing component inspection, sealing inspection, bill of materials inspection, and motion inspection are also for identifying high-frequency and significant issues. The specific secondary inspection items are as follows.
[0034] The secondary items corresponding to static data inspection include at least: fillet fit inspection, fit inspection, interference inspection, stop end inspection, symmetrical part error prevention inspection, welding adhesive application inspection, adhesive application gap inspection, riveting position structure inspection, welding position structure inspection, weld point marking inspection, and weld point level inspection, in order to obtain partial error data of the body-in-white in a static state.
[0035] The secondary items corresponding to process inspections should include at least: locating hole inspection, through hole inspection, stud welding position inspection, welding plate thickness and bottom hole diameter inspection of welding standard parts, and non-circular welding nut rotation inspection, in order to obtain some error data that affects the body-in-white assembly process and welding process.
[0036] The secondary items corresponding to the inspection of opening and closing parts should include at least: closing gap inspection, door lock adjustment inspection, door inner panel drainage hole position inspection, door reinforcement plate obstruction inspection, door cover hinge adjustment amount inspection, and front and rear cover adjustment direction inspection, in order to obtain some error data of the opening and closing parts.
[0037] The secondary items corresponding to the sealing inspection include at least: inspection of welded sealing structure, inspection of painted sealing structure, and inspection of sealing strip installation stop, in order to obtain partial error data of the body-in-white sealing structure.
[0038] The secondary items corresponding to the bill of materials check should include at least: consistency check between the bill of materials and data information, in order to identify erroneous data that do not match the body-in-white data.
[0039] The secondary items corresponding to the motion inspection include at least: door assembly inspection, in order to obtain error data that affects door assembly.
[0040] The inspection method of the present invention will be further illustrated by the following embodiments. The contents of the inspection form pre-existing in the computer-aided inspection system in the embodiments are as follows.
[0041] 1. Level 1 Inspection Item: Static Data Inspection.
[0042] 1.1 Secondary item: Inspection of fillet fit Inspection area: Entire vehicle Inspection items: 1) Check the maximum gap between the inner rounded corner of the outer sheet metal part and the outer rounded corner of the inner sheet metal part.
[0043] 1.2 Secondary item: Fit inspection Inspection areas: the entire vehicle, including hinge reinforcement plates and inner and outer panels at all locations, spot-welded surfaces, and adhesive-coated surfaces. Inspection items: 1) Inspect the gap between the mating surfaces of the sheet metal parts.
[0044] 1.3 Secondary Item: Interference Inspection Inspection area: Entire vehicle Inspection contents: 1) Check the interference value.
[0045] 1.4 Secondary item: Inspection of the end of the stop Inspection area: Entire vehicle Inspection items: 1) Check the distance between the stop of the sheet metal and the fillet of the adjacent parts.
[0046] It should be noted here that the sheet metal stop refers to the edge of the sheet metal.
[0047] 1.5 Level 2 Project: Error-Proofing Inspection Inspection area: Entire vehicle Inspection items: 1) Check whether there are left and right markings for symmetrical parts of the car body in the data.
[0048] 1.6 Secondary Item: Inspection of Welding Adhesive Application Inspection area: Entire vehicle Inspection items: 1) Inspect the application location of welding adhesive.
[0049] It should be noted that the edge adhesive should be cut off at the corner of the door edge, the adhesive should be cut off at the break in the door sill beam, and no adhesive should be applied at the bolt joint. Therefore, it is necessary to check the position of the welding adhesive.
[0050] 1.7 Secondary Item: Inspection of Adhesive Application Gap Inspection area: Entire vehicle Inspection items: 1) Inspect the gaps between the glued parts.
[0051] 1.8 Level 2 Item: Structural Inspection of Riveting Locations Inspection area: Entire vehicle Inspection content: 1) Check the overlap width of the parts at the riveting location; 2) Check the distance between the center lines of adjacent riveting joints; 3) Check the minimum distance between the edge of the sheet metal and the riveting center; 4) Check the minimum distance between the center lines of two adjacent rivets.
[0052] 1.9 Level 2 Item: Structural Inspection of Weld Locations Inspection area: Entire vehicle Inspection content: 1) Check the overlap width of the sheet metal parts at the weld point location; 2) Check whether the parts welded at the laser welding position are in line contact.
[0053] 1.10 Level 2 Item: Solder Joint Marking Inspection Inspection area: Entire vehicle Inspection content: 1) Check whether the graphic attributes of the solder joints are correct, and whether the feature names of the solder joints in the data structure tree are correct; 2) Check if the part number indicated by the solder joint name in the data structure tree is correct.
[0054] 1.11 Level 2 Item: Solder Joint Level Inspection Inspection area: Entire vehicle Inspection content: 1) Check if the solder joint layer is correct; 2) Check if the solder joints overlap.
[0055] 2. Level 1 inspection items: process inspection.
[0056] 2.1 Secondary Item: Inspection of Positioning Holes Inspection area: Floor Inspection items: 1) Check the number, type and spacing of positioning holes.
[0057] 2.2 Secondary Item: Through-hole Inspection Inspection area: Forward engine compartment Inspection items: 1) Check the size of the through hole diameter.
[0058] 2.3 Level 2 Item: Inspection of Stud Welding Position Inspection area: Floor Inspection content: 1) Inspect the welding position of the studs; 2) Check the distance between the stud and the surrounding parts in the welding direction; 3) Check the size of the plane where the stud is welded.
[0059] 2.4 Secondary Item: Inspection of welding plate thickness and bottom hole diameter of welding standard parts Inspection area: Floor Inspection items: 1) Check the plate thickness and bottom hole diameter of the standard parts for welding matching.
[0060] 2.5 Secondary Item: Inspection of Rotation of Non-Circular Welded Nuts Inspection area: Floor Inspection items: 1) Check the distance between the non-circular welded nut and the surrounding parts.
[0061] 3. Level 1 inspection items: Inspection of opening and closing components.
[0062] 3.1 Secondary item: Closed gap inspection Inspection areas: doors, side panels Inspection items: 1) Check the closing gap between the inner panels of the four doors and the outer panels of the side panels.
[0063] 3.2 Level 2 Item: Door Lock Adjustment and Inspection Inspection area: Car doors Inspection items: 1) Check the adjustment distance of the door locks.
[0064] 3.3 Level 2 Item: Inspection of the location of drainage holes in the inner door panel Inspection area: Car doors Inspection items: 1) Check the location and number of drainage holes on the inner panel of the car door.
[0065] 3.4 Level 2 Item: Inspection of Door Reinforcement Panel Coverage Inspection area: Car doors Inspection items: 1) Check whether the reinforcing plate on the door is blocking the installation hole of the sealing strip.
[0066] 3.5 Secondary Item: Inspection of Door Cover Chain Adjustment Amount Inspection areas: doors, front and rear hoods Inspection items: 1) Check whether the door hinges interfere with the inner door panel and the outer side panel when adjusted to the limit position.
[0067] 3.6 Secondary Item: Inspection of Front and Rear Cover Adjustment Direction Inspection areas: doors, front and rear hoods Inspection items: 1) Check the fixing direction of the front and rear cover hinges.
[0068] 4. Level 1 inspection item: Sealing inspection.
[0069] 4.1 Level 2 Item: Inspection of Welded Sealing Structure Inspection area: Body-in-white Inspection items: 1) Inspect the overlap gap of sheet metal parts at the spot welding sealant application location.
[0070] 4.2 Secondary Item: Inspection of Coating and Sealing Structure Inspection area: Body-in-white Inspection items: 1) Check the distance between the weld seam to be coated and the starting position of the sheet metal fillet.
[0071] 4.3 Secondary Item: Inspection of Sealing Strip Installation Joints Inspection area: Upper body Inspection items: 1) Check the dimensions of the transition radius of the side door opening sealing strip installation area.
[0072] 5. Level 1 Inspection Item: Bill of Materials Inspection.
[0073] 5.1 Level 2 Project: Consistency Check between Bill of Materials and Data Information Inspection area: Body-in-white Inspection items: 1) Check whether the part number, part name, part thickness, and part quantity in the bill of materials are consistent with the product data.
[0074] 6. Level 1 examination item: motion examination.
[0075] 6.1 Level 2 Item: Door Assembly Inspection Inspection area: Car doors Inspection items: 1) Check whether the upper and lower hinges of the car door are coaxial.
[0076] The inspection items in the aforementioned form include the investigation of high-frequency and significant issues in the trial production stage. During data testing, the computer-aided testing system extracts judgment conditions that match the inspection items of the secondary items from the testing standard parameter file. Based on the guidance of the primary inspection items, secondary items, and secondary item inspection items, the computer-aided testing system analyzes and processes the body-in-white data through its algorithm logic unit to obtain the measurement values and judgment conditions corresponding to the secondary item inspection items. The measurement values are then compared with the judgment conditions, and the comparison results generate a problem report file.
[0077] It should be noted that the present invention does not limit the display format of the inspection form, and the inspection content of the secondary items is not limited to the content described in the embodiments.
[0078] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.
Claims
1. A body-in-white data inspection method, characterized by, The method comprises the following steps: In a computer-aided detection system, a guide item for checking body-in-white data is preset, the guide item comprising a plurality of first-level checking items and a plurality of second-level checking items further subdivided for each of the first-level checking items; The first-level checking items comprise data static checking, process checking, opening and closing part checking, sealing checking, bill of material checking, and movement checking, which affect the trial production link, and the second-level checking items comprise preset second-level items and second-level item checking contents; A standard library is also preset in the computer-aided detection system, the standard library storing a detection standard parameter file comprising judgment conditions corresponding to each of the second-level items, and when data is detected, the computer-aided detection system extracts judgment conditions matching the second-level item checking contents from the detection standard parameter file; According to the guidance of the first-level checking items, the second-level items, and the second-level item checking contents, the computer-aided detection system analyzes and calculates the body-in-white data through an algorithm logic unit, obtains measurement values and judgment conditions corresponding to the second-level item checking contents, and compares the measurement values with the judgment conditions, and the comparison result is generated as a problem report file.
2. The body-in-white data checking method according to claim 1, characterized by, The second-level checking items further comprise an indication of a checking area, and the checking method further comprises: After determining the second-level items to be checked, the checking object is locked according to the indication of the checking area, and then data checking is performed according to the second-level item checking contents.
3. The body-in-white data checking method according to claim 2, characterized by, The checking method further comprises, when error data is detected, adding an optimization suggestion item in the problem report file for filling in optimization suggestions.
4. The body-in-white data inspection method according to claim 1, characterized by, The first-level checking items and the second-level items are drawn into a table model and displayed in the data detection process.
5. The body-in-white data checking method according to any one of claims 1 to 4, characterized in that, The second-level items corresponding to the data static checking comprise at least corner fitting checking, fitting checking, interference checking, end of stop checking, symmetry part error checking, welding and glue application checking, glue application gap checking, riveting position structure checking, welding position structure checking, welding spot identification checking, and welding spot level checking, so as to obtain part of error data of the body-in-white in a static state.
6. The body-in-white data checking method according to any one of claims 1 to 4, characterized by, The second-level items corresponding to the process checking items comprise at least positioning hole checking, through hole checking, stud welding position checking, welding standard part welding plate thickness and bottom hole diameter checking, and non-circular welding nut rotation checking, so as to obtain part of error data affecting the assembly process and the welding process of the body-in-white.
7. The body-in-white data checking method according to any one of claims 1 to 4, characterized by, The second-level items corresponding to the opening and closing part checking items comprise at least closing gap checking, door lock adjustment checking, door inner panel drain hole position checking, door reinforcement plate shielding checking, door cover hinge adjustment amount checking, and front and rear cover adjustment direction checking, so as to obtain part of error data of the opening and closing part.
8. The body-in-white data checking method according to any one of claims 1 to 4, characterized by, The second-level items corresponding to the sealing checking items comprise at least welding sealing structure checking, painting sealing structure checking, and sealing strip installation stop checking, so as to obtain part of error data of the sealing structure of the body-in-white.
9. The body-in-white data checking method according to any one of claims 1 to 4, characterized by, The second item corresponding to the bill of materials inspection item at least includes a bill of materials and data information consistency check to obtain error data that the body-in-white data does not match the bill of materials.
10. The body-in-white data checking method according to any one of claims 1 to 4, characterized by, The second item corresponding to the movement inspection item at least includes a door assembly inspection to obtain error data that affects door assembly.