Part size verification device and method

Abstract

The invention relates to the technical field of detection, and provides a part size verification method and device. The method comprises the following steps: constructing a standard coordinate system; a to-be-tested part and a peripheral module are installed on a multi-layer supporting frame and are fixed through a plurality of three-dimensional adjusting structures and auxiliary fixing points; measuring first data of the to-be-measured part and the peripheral module, and taking the first data as reference data; after the to-be-measured part is detached, the position deviation degree of the to-be-measured part in the single direction is adjusted through the three-dimensional adjusting structure every time, the to-be-measured part is fixed to the multi-layer supporting frame again till the limit position deviation degree of the to-be-measured part in all the directions is adjusted, and second data of the to-be-measured part in all the directions and the peripheral module are obtained; and outputting a verification result by adopting a preset processing strategy based on the reference data and the second data. According to the invention, the dimensional deviation of the vehicle body part can be accurately verified, and standard data are verified to output a verification result.

Description

Technical Field

[0001] This application relates to the field of testing technology, and in particular to a part size verification device and method. Background Technology

[0002] With the continuous development of the automotive industry, the precision of vehicle exterior dimensions has received increasing market attention. Domestic automakers primarily rely on software for dimensional design and development, leading to a situation where only theoretical analyses of the contribution of deviations in the vehicle body and related parts are possible, lacking experimental data for corroboration. This results in unconvincing analysis. Often, theoretical analysis does not match practical application, leading to a significant increase in production costs.

[0003] Typically, the analysis of the impact of deviations on the vehicle body during the small-batch production stage comes from estimations or past experience, lacking data support and accumulation, and failing to achieve true forward dimensional development. This invention provides a part dimensional verification method and device to actually simulate the deviations of vehicle body parts, thereby measuring the impact of positional deviations on final assembly parts for more precise analysis, in order to further verify whether the dimensional deviations of the parts meet the theoretical design requirements. Summary of the Invention

[0004] The purpose of this invention is to provide a part size verification device and method, which can accurately verify the dimensional deviations of vehicle body parts and output inspection results based on standard data. The specific solution is as follows:

[0005] A part dimension verification device, comprising:

[0006] A multi-layered support frame used to support the part under test and surrounding modules;

[0007] A three-dimensional adjustment structure arranged on a multi-layered support frame;

[0008] The three-dimensional adjustment structure is used to adjust the positional deviation of the part under test in different directions and to re-fix the adjusted part under test and surrounding modules.

[0009] The multi-layer support frame is also pre-set with several auxiliary fixing points for fixing the parts to be tested and the surrounding modules.

[0010] Furthermore, the three-dimensional adjustment structure includes:

[0011] A connecting base plate that is fixed to the multi-layer support frame;

[0012] A three-dimensional adjustable main frame fixed to the connecting base plate;

[0013] The three-dimensional main frame is equipped with adjustment wrenches for adjusting the positional deviations of the part under test in the X, Y and Z directions, and locking nuts for locking the position of the adjustment wrenches in different areas.

[0014] The top of the three-dimensional adjustment main frame is also provided with a fixing block for fixing the part to be tested.

[0015] Furthermore, the multi-layer support frame is provided with rollers at right angles around the bottom and with lifting rings at the center of the top around the edge.

[0016] The multi-layer support frame is also equipped with several leveling feet around its bottom for adjusting the levelness.

[0017] A method for verifying part dimensions, applied to the aforementioned apparatus, the method comprising the following steps:

[0018] S1: A standard coordinate system is constructed using measuring equipment and reference points of a multi-layered support frame;

[0019] S2: The part to be tested and the surrounding modules are mounted on a multi-layer support frame and fixed by several three-dimensional adjustment structures and auxiliary fixing points on the multi-layer support frame;

[0020] S3: Measure the first data between the part under test and the surrounding module, and use it as the reference data; wherein, the reference data includes at least: the X-axis clearance step difference, the Y-axis clearance step difference and the Z-axis clearance step difference between the part under test and the surrounding module;

[0021] S4: After disassembling the part under test, the positional deviation of the part under test in a single direction is adjusted each time through the three-dimensional adjustment structure, and then it is re-fixed on the multi-layer support frame until the limit positional deviation of the part under test in each direction is adjusted, and the second data of the part under test and the surrounding modules in each direction are obtained; the second data includes: the X-axis gap step, Y-axis gap step and Z-axis gap step obtained based on the positional deviation of the adjustment direction between the part under test and the surrounding modules.

[0022] S5: Based on the baseline data and the second data, a preset processing strategy is adopted to output the verification results.

[0023] Furthermore, step S5 specifically includes:

[0024] If the second data obtained based on the limit position deviation of all adjustment directions is less than the preset standard data, then the first verification result is output.

[0025] Based on the first verification result, the configuration result of the standard data is considered a valid conclusion.

[0026] Based on the valid conclusions, the confidence level of the positional deviation in each adjustment direction is configured according to the first difference between the second data and the preset standard.

[0027] Based on the reliability level of the positional deviation in each adjustment direction, determine whether to optimize the preset standard data.

[0028] Furthermore, the step of determining whether to optimize the preset standard data based on the reliability level of the positional deviation in each adjustment direction specifically includes:

[0029] If the first difference falls within the first preset range, the adjustment direction corresponding to the first difference is obtained, and the position deviation confidence level corresponding to the adjustment direction is set to high.

[0030] If the first difference falls within the second preset range, the adjustment direction corresponding to the first difference is obtained, and the confidence level of the position deviation corresponding to the adjustment direction is set to medium.

[0031] If the first difference falls within the third preset range, the adjustment direction corresponding to the first difference is obtained, and the confidence level of the position deviation corresponding to the adjustment direction is set to the difference level.

[0032] Obtain the gap step corresponding to the adjustment direction where the position deviation confidence level is less than high, and readjust the preset standard data based on the gap step data to obtain the target preset standard data.

[0033] Furthermore, step S5 specifically includes:

[0034] If there exists a second data obtained based on the limit position deviation adjusted in at least one adjustment direction that is greater than or equal to the preset standard data, then the second verification result is output.

[0035] Based on the second verification result, the adjustment direction corresponding to all second data that are greater than or equal to the preset standard data is extracted, and the adjustment direction is taken as the target adjustment direction.

[0036] The assembly datum tolerance is adjusted based on the target adjustment direction until the second data obtained from the limit position deviation adjusted based on the target adjustment direction is less than the preset standard data, and the configuration result of the standard data is output as the optimization conclusion.

[0037] Furthermore, the step of adjusting the assembly datum tolerance based on the target adjustment direction until the second data obtained from the limit position deviation adjusted based on the target adjustment direction is less than the preset standard data specifically includes:

[0038] Calculate the second difference between the second data and the reference data, and calculate the contribution value of the part under test in each adjustment direction based on the second difference;

[0039] The assembly tolerance is adjusted according to the magnitude of the contribution value until the second data obtained from the limit position deviation adjusted based on any target adjustment direction is less than the preset standard data.

[0040] Furthermore, the step of adjusting the assembly tolerance based on the contribution value until the second data obtained from the limit position deviation in any target adjustment direction is less than the preset standard data specifically includes:

[0041] Based on the contribution value of the part under test in each direction, the priority of the position deviation in each adjustment direction is determined; the adjustment direction corresponding to the larger contribution value is given higher priority, and the adjustment direction corresponding to the smaller contribution value is given lower priority.

[0042] Based on the priority of the positional deviation of the part under test in each adjustment direction, the tightening ratio of the assembly tolerance in the corresponding direction is assigned; among them, the tightening ratio of the assembly tolerance in the adjustment direction with higher priority is greater than that in the adjustment direction with lower priority.

[0043] Adjust the assembly tolerance within the tolerance zone of each direction based on the tightening ratio, until the second data obtained from the limit position deviation adjusted based on all target adjustment directions is less than the preset standard data. Stop adjusting the assembly tolerance, record the adjusted assembly tolerance, and output the configuration result of the preset standard data as the optimization conclusion.

[0044] Furthermore, the assembly tolerance is adjusted within the tolerance zone range in the corresponding direction based on the tightening ratio in each direction, specifically including:

[0045] If at least one direction in the adjusted assembly tolerance is within the limit tolerance zone, and at least one second data obtained based on the limit position deviation of the adjustment in the target adjustment direction is greater than the preset standard data, then the second verification result is output.

[0046] Based on the second verification result, the output of the configuration result of the preset standard data is concluded to be an invalid optimization.

[0047] The above solution achieves the following beneficial technical effects:

[0048] This application provides a part size verification device and method. The part size verification device quickly simulates the assembly of parts on site, and then the part size verification method analyzes the tolerance data of the parts to determine whether they meet the design requirements. By further analyzing the tolerance data, the standard data is verified to determine whether the design is reasonable. The verification results and optimization suggestions are given for the reference of R&D personnel for subsequent adjustments. Attached Figure Description

[0049] Figure 1 This is a flowchart illustrating the method for verifying part dimensions.

[0050] Figure 2 A schematic diagram of the overall structure for verifying part dimensions;

[0051] Figure 3 and Figure 4 Structural diagrams from different perspectives for three-dimensional adjustment of the structure. Detailed Implementation

[0052] To make the purpose, technical solution, and advantages of this application clearer, the following will be described in conjunction with the appendix. Figure 1-4 This application will be described in further detail. It is obvious that the described embodiments are merely some, not all, of the embodiments described herein. All other embodiments obtained by those skilled in the art based on the embodiments described herein without inventive effort are within the scope of protection of this application.

[0053] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the application. The singular forms “a,” “said,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms, and “multiple” generally includes at least two unless the context clearly indicates otherwise.

[0054] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0055] It should be understood that although the terms first, second, third, etc., may be used in the embodiments of this application, these descriptions should not be limited to these terms. These terms are only used to distinguish the descriptions. For example, first may also be referred to as second without departing from the scope of the embodiments of this application, and similarly, second may also be referred to as first.

[0056] Depending on the context, the words “if” or “suppose” as used here can be interpreted as “when” or “in response to determination” or “in response to detection.” Similarly, depending on the context, the phrases “if determination” or “if detection (of the stated condition or event)” can be interpreted as “when determination” or “in response to determination” or “when detection (of the stated condition or event)” or “in response to detection (of the stated condition or event).”

[0057] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or device that includes said element.

[0058] It should be noted that any symbols and / or numbers present in the specification that are not marked in the accompanying drawings are not reference numerals.

[0059] The optional embodiments of this application are described in detail below with reference to the accompanying drawings.

[0060] See Figures 1 to 4 ;1 indicates a multi-layered support frame;

[0061] 2 indicates a three-dimensional adjustment structure; 21 indicates a connecting base plate; 22 indicates an adjustment wrench; 23 indicates a locking nut; 3 indicates an auxiliary fixing point; and 4 indicates a horizontal adjustment foot.

[0062] Figure 1 The part size verification device shown includes:

[0063] A multi-layered support frame used to support the part under test and surrounding modules;

[0064] A three-dimensional adjustment structure arranged on a multi-layered support frame;

[0065] The three-dimensional adjustment structure is used to adjust the positional deviation of the part under test in different directions and to re-fix the adjusted part under test and surrounding modules.

[0066] The multi-layer support frame is also pre-set with several auxiliary fixing points for fixing the parts to be tested and the surrounding modules.

[0067] Specifically, this application can pre-configure multi-layer support frames according to the body parts to achieve a supporting function. The parts and their surrounding modules are oriented and fixed by several three-dimensional adjustment structures on the multi-layer support frames. The number and position of the three-dimensional adjustment structures can be determined according to the actual situation, and will not be repeated here.

[0068] The three-dimensional adjustment structure can adjust the position of the part under test in the X, Y, and Z directions, so as to facilitate the subsequent analysis and verification of the tolerance data of the part under test.

[0069] On the other hand, this application provides a method for verifying the dimensions of a part, applied to the apparatus described in any one of claims 1-3, the method comprising the following steps:

[0070] S1: A standard coordinate system is constructed using measuring equipment and reference points of a multi-layered support frame;

[0071] S2: The part to be tested and the surrounding modules are mounted on a multi-layer support frame and fixed by several three-dimensional adjustment structures and auxiliary fixing points on the multi-layer support frame;

[0072] S3: Measure the first data between the part under test and the surrounding module, and use it as the reference data; wherein, the reference data includes at least: the X-axis clearance step difference, the Y-axis clearance step difference and the Z-axis clearance step difference between the part under test and the surrounding module;

[0073] S4: After disassembling the part under test, the positional deviation of the part under test in a single direction is adjusted each time through the three-dimensional adjustment structure, and then it is re-fixed on the multi-layer support frame until the limit positional deviation of the part under test in each direction is adjusted, and the second data of the part under test and the surrounding modules in each direction are obtained; the second data includes: the X-axis gap step, Y-axis gap step and Z-axis gap step obtained based on the positional deviation of the adjustment direction between the part under test and the surrounding modules.

[0074] S5: Based on the baseline data and the second data, a preset processing strategy is adopted to verify the tolerance data of the part to be tested.

[0075] Specifically, this application employs an articulated arm to construct a standard coordinate system using several reference points on a multi-layered support frame to ensure the accuracy of subsequent data measurements. The part under test and its surrounding modules are then mounted on the multi-layered support frame and fixed using several three-dimensional adjustment structures and auxiliary fixing points. The articulated arm measuring device measures the first data of the part under test and its surrounding modules, using this as reference data. The reference data includes at least the X-axis, Y-axis, and Z-axis clearance steps between the part under test and its surrounding modules. After disassembling the part under test, the positional deviation of the part under test in a single direction is adjusted using the three-dimensional adjustment structures each time, and the part is re-fixed on the multi-layered support frame until the limit positional deviation of the part under test in each direction is adjusted. Second data of the part under test and its surrounding modules in each direction are obtained. Based on the reference data and the second data, a preset processing strategy is used to output verification results to verify the correctness of the tolerance data of the part under test. The advantage of this design compared to traditional designs is that, by adopting a pre-defined processing strategy, this application can not only verify whether the tolerances of the parts meet the design requirements, but also innovatively reverse-verify whether the standard data is reasonable and provide optimization suggestions for subsequent R&D personnel to make targeted adjustments.

[0076] In a specific embodiment, step S5 specifically includes:

[0077] If the second data obtained based on the extreme position deviation of all adjustment directions is less than the preset standard data, then the first verification result is output.

[0078] Based on the first verification result, the configuration result of the standard data is considered a valid conclusion.

[0079] Based on the valid conclusions, the confidence level of the positional deviation in each adjustment direction is configured according to the first difference between the second data and the preset standard.

[0080] Based on the reliability level of the positional deviation in each adjustment direction, determine whether to optimize the preset standard data.

[0081] Specifically, in this embodiment, if the second data obtained based on the limit position deviation of all adjustment directions is less than the preset standard data, it indicates that the tolerance data of the test part and the surrounding module meet the design standard, that is, the existing body parts can be directly shipped after assembly and inspection. Furthermore, this application adjusts the preset standard data according to the position deviation reliability level to obtain target standard data that matches the actual assembly height, avoiding the cost waste or substandard accuracy caused by blind optimization, and also reducing the risk of misjudgment due to subjective judgment.

[0082] In one specific embodiment, determining whether to optimize the preset standard data based on the reliability level of the position deviation in each adjustment direction specifically includes:

[0083] If the first difference falls within the first preset range, the adjustment direction corresponding to the first difference is obtained, and the position deviation confidence level corresponding to the adjustment direction is set to high.

[0084] If the first difference falls within the second preset range, the adjustment direction corresponding to the first difference is obtained, and the confidence level of the position deviation corresponding to the adjustment direction is set to medium.

[0085] If the first difference falls within the third preset range, the adjustment direction corresponding to the first difference is obtained, and the confidence level of the position deviation corresponding to the adjustment direction is set to the difference level.

[0086] Obtain the gap step corresponding to the adjustment direction where the position deviation confidence level is less than high, and readjust the preset standard data based on the gap step data to obtain the target preset standard data.

[0087] Specifically, if the first difference falls within the first preset range, the position deviation confidence level of the adjustment direction corresponding to the first difference is set to high, indicating that the gap step data corresponding to the adjustment direction does not need to be adjusted. If the position deviation confidence level of the adjustment direction corresponding to the first difference is set to below high, such as medium or poor, the gap step data corresponding to the medium or poor level can be adjusted and optimized, so that the target preset standard data is more in line with the actual assembly, while avoiding the increase in processing and assembly costs caused by over-optimization.

[0088] For example, if the difference in the X-direction clearance step difference during car door assembly (the difference between the second data and the preset standard) falls within the first preset range (e.g., 0-0.2mm), it indicates that the X-direction deviation is ample and sufficient, and the reliability is set to high without optimization. If the Y-direction difference falls within the second preset range (e.g., 0.2-0.5mm) and the Z-direction difference falls within the third preset range (e.g., 0.5-0.8mm), it indicates that the Y-direction and Z-direction deviations are close to or touch the upper limit of the preset standard. The preset standard needs to be tightened based on the actual clearance step difference data. The Y-direction ±0.3mm is adjusted to ±0.25mm and the Z-direction ±0.4mm is adjusted to ±0.3mm. By reducing the tolerance dimensions, the assembly accuracy is improved, avoiding problems such as abnormal noise and poor sealing caused by excessive clearance.

[0089] In one specific embodiment, step S5 further includes:

[0090] If there exists a second data obtained based on the limit position deviation adjusted in at least one adjustment direction that is greater than or equal to the preset standard data, then the second verification result is output.

[0091] Based on the second verification result, the adjustment direction corresponding to all second data that are greater than or equal to the preset standard data is extracted, and the adjustment direction is taken as the target adjustment direction.

[0092] The assembly datum tolerance is adjusted based on the target adjustment direction until the second data obtained from the limit position deviation adjusted based on the target adjustment direction is less than the preset standard data, and the configuration result of the standard data is output as the optimization conclusion.

[0093] Specifically, in this embodiment, when there is a second data obtained based on the limit position deviation adjusted in at least one adjustment direction that is greater than or equal to a preset standard data, a second verification result is output. Based on the second verification result, the adjustment directions corresponding to all second data that are greater than or equal to the preset standard data are extracted, and these adjustment directions are taken as target adjustment directions. The assembly datum tolerance is adjusted based on the target adjustment direction until the second data obtained based on the limit position deviation adjusted in the target adjustment direction is less than the preset standard data, and the configuration result of the standard data is output as the optimization conclusion. The advantage of this design is that by determining all adjustment directions with excessive limit deviations and locking them as target adjustment directions, precise adjustment of the problem direction is achieved. This ensures that the assembly accuracy meets the preset standard while maximizing the retention of reasonable tolerances in non-problem directions to control processing and assembly costs.

[0094] Furthermore, the step of adjusting the assembly datum tolerance based on the target adjustment direction until the second data obtained from the limit position deviation adjusted based on the target adjustment direction is less than the preset standard data specifically includes:

[0095] Calculate the second difference between the second data and the reference data, and calculate the contribution value of the part under test in each adjustment direction based on the second difference;

[0096] The assembly tolerance is adjusted according to the magnitude of the contribution value until the second data obtained from the limit position deviation adjusted based on any target adjustment direction is less than the preset standard data.

[0097] Specifically, in this embodiment, the influence weight of each target adjustment direction on the assembly deviation is first obtained based on the second difference between the second data and the reference data; then, the contribution value of the part under test in each adjustment direction is calculated based on the second difference; the assembly tolerance is adjusted according to the magnitude of the contribution value until the second data obtained based on the limit position deviation degree adjusted in any target adjustment direction is less than the preset standard data, thereby ensuring that the limit deviation of all target adjustment directions meets the design requirements.

[0098] In one specific embodiment, the step of adjusting the assembly tolerance according to the magnitude of the contribution value until the second data obtained from the limit position deviation in any target adjustment direction is less than the preset standard data specifically includes:

[0099] Based on the contribution value of the part under test in each direction, the priority of the position deviation in each adjustment direction is determined; the adjustment direction corresponding to the larger contribution value is given higher priority, and the adjustment direction corresponding to the smaller contribution value is given lower priority.

[0100] Based on the priority of the positional deviation of the part under test in each adjustment direction, the tightening ratio of the assembly tolerance in the corresponding direction is assigned; among them, the tightening ratio of the assembly tolerance in the adjustment direction with higher priority is greater than that in the adjustment direction with lower priority.

[0101] Adjust the assembly tolerance within the tolerance zone of each direction based on the tightening ratio, until the second data obtained from the limit position deviation adjusted based on all target adjustment directions is less than the preset standard data. Stop adjusting the assembly tolerance, record the adjusted assembly tolerance, and output the configuration result of the preset standard data as the optimization conclusion.

[0102] Specifically, this application allocates the tightening ratio of assembly tolerances in corresponding directions based on the priority of the positional deviation of the part under test in each adjustment direction. The tolerance zone range of the assembly tolerance in each direction is adjusted based on the tightening ratio in each direction until the second data obtained from the limit positional deviation adjusted in all target adjustment directions is less than the preset standard data. At this point, the adjustment of the assembly tolerance is stopped, and the adjusted assembly tolerance is recorded. Simultaneously, the configuration result of the preset standard data is output as the optimization conclusion. The advantage of this design is that by focusing on optimizing key directions and making minor adjustments to secondary directions, it avoids the cost waste or insufficient accuracy problems caused by blind adjustment or a one-size-fits-all approach in traditional tolerance adjustment, while ensuring that all target adjustment directions meet the preset standard.

[0103] Furthermore, the assembly tolerance is adjusted within the tolerance zone range in the corresponding direction based on the tightening ratio in each direction, specifically including:

[0104] If at least one direction in the adjusted assembly tolerance is within the limit tolerance zone, and at least one second data obtained based on the limit position deviation of the adjustment in the target adjustment direction is greater than the preset standard data, then the second verification result is output.

[0105] Based on the second verification result, the output of the configuration result of the preset standard data is concluded to be an invalid optimization.

[0106] It is understood that in this embodiment, when at least one direction of the adjusted assembly tolerance is within the limit tolerance zone, there is still at least one second data obtained based on the limit position deviation of the adjustment in the target adjustment direction that is greater than the preset standard data. This indicates that the current configuration of the preset standard data is unreasonable, that is, the preset standard data does not match the actual processing and assembly capabilities. This avoids invalid tolerance adjustments, so as to provide a clear direction for subsequent R&D design iterations, and can also significantly reduce the waste of time and costs caused by unreasonable standards.

[0107] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A part size verification device, characterized in that, include: A multi-layered support frame used to support the part under test and surrounding modules; A three-dimensional adjustment structure arranged on a multi-layered support frame; The three-dimensional adjustment structure is used to adjust the positional deviation of the part under test in different directions and to re-fix the adjusted part under test and surrounding modules. The multi-layer support frame is also pre-set with several auxiliary fixing points for fixing the parts to be tested and the surrounding modules.

2. The apparatus according to claim 1, characterized in that, The three-dimensional adjustment structure includes: A connecting base plate that is fixed to the multi-layer support frame; A three-dimensional adjustable main frame fixed to the connecting base plate; The three-dimensional main frame is equipped with adjustment wrenches for adjusting the positional deviations of the part under test in the X, Y and Z directions, and locking nuts for locking the position of the adjustment wrenches in different areas. The top of the three-dimensional adjustment main frame is also provided with a fixing block for fixing the part to be tested.

3. The apparatus according to claim 2, characterized in that, The multi-layer support frame is equipped with rollers at right angles around the bottom and lifting rings at the center of the top around the edge. The multi-layer support frame is also equipped with several leveling feet around its bottom for adjusting the levelness.

4. A method for verifying the dimensions of a part, characterized in that, Applied to the apparatus of any one of claims 1-3, the method comprises the following steps: S1: A standard coordinate system is constructed using measuring equipment and reference points of a multi-layered support frame; S2: The part to be tested and the surrounding modules are mounted on a multi-layer support frame and fixed by several three-dimensional adjustment structures and auxiliary fixing points on the multi-layer support frame; S3: Measure the first data between the part under test and the surrounding module, and use it as the reference data; wherein, the reference data includes at least: the X-axis clearance step difference, the Y-axis clearance step difference and the Z-axis clearance step difference between the part under test and the surrounding module; S4: After disassembling the part under test, the positional deviation of the part under test in a single direction is adjusted each time through the three-dimensional adjustment structure, and then it is re-fixed on the multi-layer support frame until the limit positional deviation of the part under test in each direction is adjusted, and the second data of the part under test and the surrounding modules in each direction are obtained; the second data includes: the X-axis gap step, Y-axis gap step and Z-axis gap step obtained based on the positional deviation of the adjustment direction between the part under test and the surrounding modules. S5: Based on the baseline data and the second data, a preset processing strategy is adopted to output the verification results.

5. The method according to claim 4, characterized in that, Step S5 specifically includes: If the second data obtained based on the limit position deviation of all adjustment directions is less than the preset standard data, then the first verification result is output. Based on the first verification result, the configuration result of the standard data is considered a valid conclusion. Based on the valid conclusions, the confidence level of the positional deviation in each adjustment direction is configured according to the first difference between the second data and the preset standard. Based on the reliability level of the positional deviation in each adjustment direction, determine whether to optimize the preset standard data.

6. The method according to claim 5, characterized in that, The determination of whether to optimize the preset standard data based on the reliability level of the position deviation in each adjustment direction specifically includes: If the first difference falls within the first preset range, the adjustment direction corresponding to the first difference is obtained, and the position deviation confidence level corresponding to the adjustment direction is set to high. If the first difference falls within the second preset range, the adjustment direction corresponding to the first difference is obtained, and the confidence level of the position deviation corresponding to the adjustment direction is set to medium. If the first difference falls within the third preset range, the adjustment direction corresponding to the first difference is obtained, and the confidence level of the position deviation corresponding to the adjustment direction is set to the difference level. Obtain the gap step corresponding to the adjustment direction where the position deviation confidence level is less than high, and readjust the preset standard data based on the gap step data to obtain the target preset standard data.

7. The method according to claim 6, characterized in that, Step S5 further includes: If there exists a second data obtained based on the limit position deviation adjusted in at least one adjustment direction that is greater than or equal to the preset standard data, then the second verification result is output. Based on the second verification result, the adjustment direction corresponding to all second data that are greater than or equal to the preset standard data is extracted, and the adjustment direction is taken as the target adjustment direction. The assembly datum tolerance is adjusted based on the target adjustment direction until the second data obtained from the limit position deviation adjusted based on the target adjustment direction is less than the preset standard data, and the configuration result of the standard data is output as the optimization conclusion.

8. The method according to claim 7, characterized in that, The process of adjusting the assembly datum tolerance based on the target adjustment direction until the second data obtained from the limit position deviation adjusted based on the target adjustment direction is less than the preset standard data further includes: Calculate the second difference between the second data and the reference data, and calculate the contribution value of the part under test in each adjustment direction based on the second difference; The assembly tolerance is adjusted according to the magnitude of the contribution value until the second data obtained from the limit position deviation adjusted based on any target adjustment direction is less than the preset standard data.

9. The method according to claim 8, characterized in that, The process of adjusting assembly tolerances based on the contribution value until the second data obtained from the limit position deviation in any target adjustment direction is less than the preset standard data specifically includes: Based on the contribution value of the part under test in each direction, the priority of the position deviation in each adjustment direction is determined; the adjustment direction corresponding to the larger contribution value is given higher priority, and the adjustment direction corresponding to the smaller contribution value is given lower priority. Based on the priority of the positional deviation of the part under test in each adjustment direction, the tightening ratio of the assembly tolerance in the corresponding direction is assigned; among them, the tightening ratio of the assembly tolerance in the adjustment direction with higher priority is greater than that in the adjustment direction with lower priority. Adjust the assembly tolerance within the tolerance zone of each direction based on the tightening ratio, until the second data obtained from the limit position deviation adjusted based on all target adjustment directions is less than the preset standard data. Stop adjusting the assembly tolerance, record the adjusted assembly tolerance, and output the configuration result of the preset standard data as the optimization conclusion.

10. The method according to claim 9, characterized in that, The assembly tolerance is adjusted within the tolerance zone range in the corresponding direction based on the tightening ratio in each direction, specifically including: If at least one direction in the adjusted assembly tolerance is within the limit tolerance zone, and at least one second data obtained based on the limit position deviation of the adjustment in the target adjustment direction is greater than the preset standard data, then the second verification result is output. Based on the second verification result, the output of the configuration result of the preset standard data is concluded to be an invalid optimization.

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