Vehicle door sealing gap analysis method

Abstract

The invention relates to a vehicle door sealing gap analysis method. The method comprises the steps of judging whether the posture of a vehicle door assembly meets requirements or not; if the posture of the vehicle door assembly does not meet the requirement, a hinge point abnormal result is output; if the vehicle door assembly posture meets the requirement, whether a vehicle door outer plate and a side wall outer plate meet the requirement or not is judged according to the side wall outer plate face difference, the front vehicle door outer plate face difference and the rear vehicle door outer plate face difference; if the vehicle door outer plate and the side wall outer plate do not meet the requirements, an outer plate abnormal result is output; if the vehicle door outer plate and the side wall outer plate meet the requirements, whether an inner side assembly meets the requirements or not is determined according to the sealing gap between the vehicle door assembly and the side wall assembly; and if the inner side assembly does not meet the requirement, outputting an abnormal result of the inner side assembly. In the embodiment of the invention, the problem point can be quickly found, so that rectification is facilitated, and the problem point which is difficult to find due to direct analysis of the sealing gap is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of automobiles, and in particular to a method for analyzing a sealing gap of a vehicle door. Background Art

[0002] For car doors, the door sealing gap is a very important parameter, which will directly affect the door appearance, the sound quality of the door opening and closing, the abnormal noise of the door sealing strip, etc. The door sealing gap usually refers to the gap between the door and the side panel.

[0003] At present, when analyzing the door sealing gap, the door sealing gap is directly measured to determine whether the door sealing gap meets the requirements. If it does not meet the requirements, it is necessary to find out the problem and make corrections to ensure that the door sealing gap meets the requirements after the correction.

[0004] However, since the door sealing gap involves many parts and the manufacturing process is complicated, the analysis and rectification of the door sealing gap is complicated, and the problem points cannot be quickly found for rectification. Summary of the invention

[0005] The purpose of the present invention is to provide a door sealing gap analysis method to solve the technical problem in the prior art that the problem point cannot be quickly found and rectified when analyzing the door sealing gap.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0007] A door sealing gap analysis method, comprising:

[0008] Determine whether the posture of the door assembly meets the requirements;

[0009] If the door assembly posture does not meet the requirements, the hinge point abnormality result is output;

[0010] If the door assembly posture meets the requirements, judging whether the door outer panel and the side outer panel meet the requirements according to the side outer panel surface difference, the front door outer panel surface difference and the rear door outer panel surface difference;

[0011] If the door outer panel and the side panel outer panel do not meet the requirements, an outer panel abnormality result is output;

[0012] If the door outer panel and the side panel outer panel meet the requirements, then determine whether the inner component meets the requirements according to the sealing gap between the door assembly and the side panel assembly, wherein the inner component includes the door inner panel, the door window frame and the side panel stopper;

[0013] If the inner component does not meet the requirements, an inner component abnormality result is output.

[0014] Further, the step of judging whether the door assembly posture meets the requirements includes:

[0015] Whether the door assembly posture meets the requirements is judged based on the installation surface difference between the upper hinge installation surface of the side panel and the lower hinge installation surface of the side panel, the Y-axis deviation between the upper hinge nut hole of the door and the lower hinge nut hole of the door, and the extreme difference between the sealing gap at the upper hinge and the sealing gap at the lower hinge.

[0016] Further, judging whether the door assembly posture meets the requirements according to the mounting surface difference between the upper hinge mounting surface of the side panel and the lower hinge mounting surface of the side panel, the Y-direction deviation between the upper hinge nut hole of the door and the lower hinge nut hole of the door, and the extreme difference between the sealing gap at the upper hinge and the sealing gap at the lower hinge includes:

[0017] Determine whether the difference between the mounting surface difference and the mounting surface difference design value meets the first tolerance requirement, and determine whether the extreme difference of the mounting surface difference is less than or equal to a first preset value;

[0018] Determine whether the difference between the Y-direction deviation and the deviation design value meets the first tolerance requirement, and determine whether the extreme difference of the Y-direction deviation is less than or equal to a second preset value;

[0019] It is determined whether the range of the sealing gap at the upper hinge and the sealing gap at the lower hinge is less than or equal to a third preset value.

[0020] Furthermore, the first tolerance requirement is plus or minus 0.5 mm, and the first preset value, the second preset value, and the third preset value are all 0.6 mm.

[0021] Further, the side panel outer panel surface difference includes the surface difference at the C-pillar waistline position, the front door outer panel surface difference includes the surface difference at the front door waistline position, and the rear door outer panel surface difference includes the surface difference at the rear door waistline position;

[0022] If the door assembly posture meets the requirements, judging whether the door outer panel and the side outer panel meet the requirements according to the side outer panel surface difference, the front door outer panel surface difference and the rear door outer panel surface difference includes:

[0023] If the door assembly posture meets the requirement, determining whether the difference between the face difference at the waistline position of the C-pillar and the design value of the side wall face difference meets the second tolerance requirement;

[0024] Determining whether the difference between the face difference at the waistline position of the front door and the design value of the face difference of the front door meets the second tolerance requirement;

[0025] Determine whether the difference between the face difference at the rear door waistline position and the rear door face difference design value meets the second tolerance requirement.

[0026] Further, the sealing gap between the door assembly and the side panel assembly includes a sealing gap in the window frame area and a sealing gap in the inner panel area. If the door outer panel and the side panel outer panel meet the requirements, determining whether the inner component meets the requirements according to the sealing gap between the door assembly and the side panel assembly includes:

[0027] If the door outer panel and the side panel outer panel meet the requirements, determining whether the difference between the window frame area sealing gap and the window frame gap design value meets the third tolerance requirement;

[0028] If the difference between the sealing gap in the window frame area and the design value of the window frame gap does not meet the third tolerance requirement, determining whether the door window frame meets the requirement according to the surface difference of the door window frame, and determining whether the side panel stopper meets the requirement according to the surface difference of the side panel stopper;

[0029] Determining whether the difference between the inner panel area sealing gap and the inner panel gap design value meets the third tolerance requirement;

[0030] If the difference between the sealing gap of the inner panel area and the design value of the inner panel gap does not meet the third tolerance requirement, then determine whether the door inner panel meets the requirement based on the sealing surface offset value of the door inner panel, and determine whether the side panel stop meets the requirement based on the side panel stop offset value.

[0031] Further, if the inner component does not meet the requirements, after outputting the inner component abnormal result, it also includes:

[0032] If the door inner panel, the door window frame and the side panel stop all meet the requirements, the qualified result of the inner component is output.

[0033] Further, if the door outer panel and the side outer panel do not meet the requirements, after outputting the outer panel abnormality result, the method further includes:

[0034] If both the door outer panel and the side panel outer panel meet the requirements, the outer panel qualified result is output.

[0035] Beneficial effects of the embodiments of the present invention:

[0036] In the embodiment of the present invention, it is first determined whether the posture of the door assembly, the door outer panel and the side outer panel meet the requirements. Only when the posture of the door assembly, the door outer panel and the side outer panel meet the requirements can the sealing gap between the door assembly and the side assembly analyzed in the subsequent analysis be true and reliable, thereby ensuring the correctness of the conclusion of the sealing gap analysis. In the embodiment of the present invention, when the posture of the door assembly does not meet the requirements, the hinge point abnormal result can be output, and the problem point is located at the hinge point. When the door outer panel and the side outer panel do not meet the requirements, the outer panel abnormal result can be output, and the problem point is located at the outer panel, that is, the problem point can be quickly found to facilitate rectification, thereby effectively solving the problem that the door sealing gap does not meet the requirements, and avoiding the difficulty in finding the problem point caused by directly analyzing the sealing gap. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 A flow chart of the steps of the door sealing gap analysis method provided by an embodiment of the present invention;

[0038] Figure 2 for Figure 1 A flow chart of step 101 in a method for analyzing a vehicle door seal gap is provided;

[0039] Figure 3 for Figure 1 A flow chart of step 103 in the provided vehicle door seal gap analysis method;

[0040] Figure 4 for Figure 1 A flow chart of step 105 in a vehicle door seal gap analysis method is provided. DETAILED DESCRIPTION

[0041] The following will describe the embodiments of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention, not for limiting the scope of protection of the present invention.

[0042] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0043] In the field of passenger car bodies, the door sealing gap is a very important parameter, which will directly affect the appearance of the door, the sound quality of the door opening and closing, the abnormal noise of the door sealing strip and other performance. The door sealing gap involves many parts, such as the side outer panel, the door inner panel, the door window frame, the door outer panel, the small and medium-sized door parts, etc., and the manufacturing process involved is complex, such as the production process of the sheet, the welding of the door, the buckling of the door, the assembly and debugging process of the door welding assembly, etc. Therefore, the analysis and rectification of the door sealing gap is complicated. At present, there is no systematic and unified analysis method, which leads to a long cycle of sealing gap analysis and rectification, and the problem points cannot be found quickly, and there are deviations in the rectification.

[0044] In order to solve the above problems, an embodiment of the present invention provides a door sealing gap analysis method to analyze the door sealing gap, so as to quickly find the problem points and make corrections.

[0045] Reference Figure 1 The embodiment of the present invention provides a door sealing gap analysis method, comprising:

[0046] Step 101, determining whether the door assembly posture meets the requirements.

[0047] Specifically, the automobile includes a vehicle body and a door assembly mounted on the vehicle body. The vehicle body includes a side panel assembly, and the door assembly is specifically mounted on the side panel assembly through an upper hinge and a lower hinge. The door assembly includes a door outer panel, a door inner panel, and a door window frame, and the door window frame is arranged on the upper part of the door inner panel. The door window frame is used to form an air circulation channel inside and outside the automobile. The side panel assembly includes a side panel outer panel and a side panel inner panel.

[0048] The door assembly posture specifically refers to the posture of the door assembly installed on the side panel assembly through the upper hinge and the lower hinge. If the door assembly tilts up and down, the door assembly posture does not meet the requirements. When the door assembly posture does not meet the requirements, the subsequent measured sealing gap between the door assembly and the side panel assembly is not true, and the analysis may lead to wrong conclusions. Therefore, it is necessary to first determine whether the door assembly posture meets the requirements.

[0049] Specifically, whether the door assembly posture meets the requirements can be judged based on the installation surface difference between the upper hinge installation surface of the side panel and the lower hinge installation surface of the side panel, the Y-axis deviation between the upper hinge nut hole of the door and the lower hinge nut hole of the door, and the extreme difference between the sealing gap at the upper hinge and the sealing gap at the lower hinge.

[0050] Step 102: If the door assembly posture does not meet the requirements, the hinge point abnormality result is output.

[0051] Specifically, the hinge point abnormal result is used to indicate that there are problems at the upper hinge and the lower hinge. When the door assembly posture does not meet the requirements, it means that there are problems at the upper hinge and the lower hinge. Therefore, the hinge point abnormal result can be output to indicate that there is an abnormality at the hinge point and corresponding rectification is required.

[0052] When making corrections, you can sort out the problems of the positions of the upper hinge mounting surface of the side panel, the lower hinge mounting surface of the side panel, the upper hinge nut hole of the door, and the lower hinge nut hole of the door, and then make corresponding corrections to meet the requirements. If the project is urgent, you can adjust the positions of the side panel hinge nut plate and the door hinge nut plate to make the door assembly correct relative to the side panel assembly.

[0053] Step 103 , if the door assembly posture meets the requirements, then judging whether the door outer panel and the side outer panel meet the requirements according to the side outer panel surface difference, the front door outer panel surface difference and the rear door outer panel surface difference.

[0054] Specifically, if the door assembly posture meets the requirements, the next step of analysis can be performed. The purpose of judging whether the door outer panel and the side outer panel meet the requirements is to analyze whether the accuracy of the outer covering parts meets the requirements. The outer covering parts include the door outer panel and the side outer panel. In addition, if the door assembly posture meets the requirements, the hinge point qualified result can also be output.

[0055] The door assembly is divided into the front door and the rear door. The front door includes the front door outer panel, and the rear door includes the rear door outer panel. When assembling the door assembly, the rear door is installed first in the welding workshop. The rear door outer panel is flush with the A surface of the side panel outer panel, and then the front door is installed. The front door outer panel and the rear door outer panel are flattened at the waistline with a magnet. If the side panel outer panel surface difference, the front door outer panel surface difference and the rear door outer panel surface difference do not meet the requirements, the door outer panel and the side panel outer panel will not meet the requirements, which will cause the sealing gap between the door assembly and the side panel assembly to be too large or too small.

[0056] Step 104: if the door outer panel and the side outer panel do not meet the requirements, an outer panel abnormality result is output.

[0057] Specifically, the outer panel abnormality result is used to indicate that there are problems with the door outer panel and the side outer panel. When the door outer panel and the side outer panel do not meet the requirements, it means that there are problems with the door outer panel and the side outer panel. Therefore, the outer panel abnormality result can be output to indicate that there is an abnormality in the outer panel and corresponding rectification is required. When the door outer panel does not meet the requirements, the door outer panel needs to be rectified; when the side outer panel does not meet the requirements, the side outer panel needs to be rectified. Specifically, if the door outer panel does not meet the requirements, the door outer panel abnormality result is output; if the side outer panel does not meet the requirements, the side outer panel abnormality result is output.

[0058] Step 105, if the door outer panel and the side panel outer panel meet the requirements, determine whether the inner components meet the requirements based on the sealing gap between the door assembly and the side panel assembly, wherein the inner components include the door inner panel, the door window frame and the side panel stop.

[0059] Specifically, when the door assembly posture meets the requirements, and the door outer panel and the side panel outer panel meet the requirements, the next step of analysis is performed. Since the above steps have determined that there are no problems with the door assembly posture, the door outer panel and the side panel outer panel, this step can determine whether there are problems with the door inner panel, the door window frame and the side panel stop according to the sealing gap between the door assembly and the side panel assembly.

[0060] Step 106: If the inner component does not meet the requirements, an inner component abnormality result is output.

[0061] Specifically, the inner component abnormal result is used to indicate that there is a problem with the inner component. When the inner component does not meet the requirements, it means that there is a problem with the inner component. Therefore, the inner component abnormal result can be output to indicate that there is an abnormality in the inner component and corresponding rectification is required. Specifically, if the door inner panel does not meet the requirements, the door inner panel abnormal result is output; if the door window frame does not meet the requirements, the door window frame abnormal result is output; if the side panel stopper does not meet the requirements, the side panel stopper abnormal result is output.

[0062] In the embodiment of the present invention, it is first determined whether the posture of the door assembly, the door outer panel and the side outer panel meet the requirements. Only when the posture of the door assembly, the door outer panel and the side outer panel meet the requirements can the sealing gap between the door assembly and the side assembly analyzed in the subsequent analysis be true and reliable, thereby ensuring the correctness of the conclusion of the sealing gap analysis. In the embodiment of the present invention, when the posture of the door assembly does not meet the requirements, the hinge point abnormal result can be output, and the problem point is located at the hinge point. When the door outer panel and the side outer panel do not meet the requirements, the outer panel abnormal result can be output, and the problem point is located at the outer panel, that is, the problem point can be quickly found to facilitate rectification, thereby effectively solving the problem that the door sealing gap does not meet the requirements, and avoiding the difficulty in finding the problem point caused by directly analyzing the sealing gap.

[0063] Step 101 determines whether the door assembly posture meets the requirements, including:

[0064] Whether the door assembly posture meets the requirements is judged based on the installation surface difference between the upper hinge installation surface of the side panel and the lower hinge installation surface of the side panel, the Y-axis deviation between the upper hinge nut hole of the door and the lower hinge nut hole of the door, and the extreme difference between the sealing gap at the upper hinge and the sealing gap at the lower hinge.

[0065] Specifically, the length, width and height directions of the car are represented by the X-direction, Y-direction and Z-direction respectively. The installation surface difference specifically refers to the surface difference between the upper hinge installation surface of the side panel and the lower hinge installation surface of the side panel along the Y-direction. When the door assembly is closed, the X-direction, Y-direction and Z-direction of the door assembly are consistent with the X-direction, Y-direction and Z-direction of the car respectively. The Y-direction deviation specifically refers to the deviation between the axial center line of the upper hinge nut hole of the door and the axial center line of the lower hinge nut hole of the door along the Y-direction.

[0066] The sealing gap at the upper hinge specifically refers to the sealing gap between the door assembly and the side panel assembly at the upper hinge, and the sealing gap at the lower hinge specifically refers to the sealing gap between the door assembly and the side panel assembly at the lower hinge. In the embodiment of the present invention, whether the posture of the door assembly meets the requirements can be judged by the installation surface difference, the Y-direction deviation, and the extreme difference between the sealing gap at the upper hinge and the sealing gap at the lower hinge.

[0067] Reference Figure 2 , judge whether the door assembly posture meets the requirements based on the installation surface difference between the upper hinge installation surface of the side panel and the lower hinge installation surface of the side panel, the Y-direction deviation between the upper hinge nut hole of the door and the lower hinge nut hole of the door, and the extreme difference between the sealing gap at the upper hinge and the sealing gap at the lower hinge, including:

[0068] Step 1011, determining whether the difference between the mounting surface difference and the mounting surface difference design value meets the first tolerance requirement, and determining whether the range of the mounting surface difference is less than or equal to the first preset value.

[0069] Specifically, the design value of the installation surface difference, i.e., the design value of the installation surface difference between the upper hinge installation surface of the side panel and the lower hinge installation surface of the side panel, is a theoretical value. The first tolerance requirement can be designed according to actual requirements, such as being designed to be ±0.5 mm. The first preset value can be designed according to actual requirements, such as being designed to be 0.6 mm.

[0070] Step 1012, determining whether the difference between the Y-direction deviation and the deviation design value meets the first tolerance requirement, and determining whether the extreme difference of the Y-direction deviation is less than or equal to the second preset value.

[0071] Specifically, the deviation design value, that is, the design value of the Y-direction deviation between the upper hinge nut hole of the door and the lower hinge nut hole of the door, is a theoretical value. The second preset value can be designed according to actual requirements, such as being designed to be 0.6 mm.

[0072] Step 1013, determining whether the range of the sealing gap at the upper hinge and the sealing gap at the lower hinge is less than or equal to a third preset value.

[0073] Specifically, the third preset value can be designed according to actual requirements, such as being designed to be 0.6 mm.

[0074] The mounting surface difference between the upper hinge mounting surface of the side panel and the lower hinge mounting surface of the side panel, the Y-direction deviation between the upper hinge nut hole of the door and the lower hinge nut hole of the door, the sealing gap at the upper hinge, and the sealing gap at the lower hinge can all be measured by measuring tools.

[0075] If all of the above judgments meet the requirements, it means that the posture of the door assembly meets the requirements. If any of the above judgments does not meet the requirements, it means that the posture of the door assembly does not meet the requirements. In the embodiment of the present invention, through the above settings, specific judgment conditions are provided for judging whether the posture of the door assembly meets the requirements.

[0076] The first tolerance requirement is plus or minus 0.5 mm, and the first preset value, the second preset value, and the third preset value are all 0.6 mm.

[0077] The side panel surface difference includes the surface difference at the waistline of the C-pillar, the front door panel surface difference includes the surface difference at the waistline of the front door, and the rear door panel surface difference includes the surface difference at the waistline of the rear door. Figure 3 In step 103, if the door assembly posture meets the requirements, judging whether the door outer panel and the side outer panel meet the requirements according to the side outer panel surface difference, the front door outer panel surface difference and the rear door outer panel surface difference includes:

[0078] Step 1031, if the door assembly posture meets the requirements, determine whether the difference between the face difference at the C-pillar waistline position and the side wall face difference design value meets the second tolerance requirement.

[0079] Specifically, when assembling the door assembly, the rear door is installed first in the welding workshop, and the rear door outer panel is flush with the side outer panel A, and then the front door is installed, and the front door outer panel and the rear door outer panel are flattened at the waistline with a magnet. If the side outer panel surface difference, the front door outer panel surface difference and the rear door outer panel surface difference do not meet the requirements, the door outer panel and the side outer panel will not meet the requirements, and then the sealing gap between the door assembly and the side assembly will be too large or too small.

[0080] The flushness at the waistline of the C-pillar specifically refers to the flushness at the waistline of the C-pillar on the side outer panel. The design value of the side flushness specifically refers to the design value of the flushness at the waistline of the C-pillar, which is a theoretical value. The second tolerance requirement can be within ±Amm, but does not include the endpoint value, that is, the difference between the flushness at the waistline of the C-pillar and the design value of the side flushness is greater than or equal to Amm, or less than or equal to -Amm, which does not meet the requirements. A can be set according to actual needs, such as 0.5-1.

[0081] When the difference between the surface difference at the waistline of the C-pillar and the design value of the surface difference of the side panel does not meet the second tolerance requirement, such as the surface difference at the waistline of the C-pillar is Amm, and the surface difference at the waistline of the rear door meets the requirement, the rear door needs to be adjusted outward to be flush with the side panel outer panel during assembly. In this case, the measured sealing gap between the rear door and the side panel assembly is too large and does not meet the requirements, which may affect the wind noise and air tightness of the vehicle.

[0082] When the difference between the surface difference at the waistline of the C-pillar and the design value of the surface difference of the side panel does not meet the second tolerance requirement, such as the surface difference at the waistline of the C-pillar is sunken by Amm, and the surface difference at the waistline of the rear door meets the requirement, the rear door needs to be adjusted inward to be flush with the side panel outer panel during assembly. In this case, the measured sealing gap between the rear door and the side panel assembly is small and does not meet the requirement, which will affect the door closing force value.

[0083] It should be noted that the outward face difference of Amm at the waistline of the C-pillar means that the face difference at the waistline of the C-pillar is Amm biased toward the outside of the car compared to the design value of the side face difference. The face difference at the waistline of the C-pillar is Amm sunken, which means that the face difference at the waistline of the C-pillar is Amm biased toward the inside of the car compared to the design value of the side face difference.

[0084] Step 1032, determining whether the difference between the face difference at the waistline position of the front door and the design value of the face difference of the front door meets the second tolerance requirement.

[0085] Specifically, the face difference at the waistline position of the front door specifically refers to the face difference at the waistline position on the front door outer panel. The front door face difference design value specifically refers to the design value of the face difference at the waistline position of the front door, which is a theoretical value.

[0086] Step 1033, determining whether the difference between the face difference at the rear door waistline position and the rear door face difference design value meets the second tolerance requirement.

[0087] Specifically, the face difference at the waistline position of the C-pillar, the face difference at the waistline position of the front door, and the face difference at the waistline position of the rear door can all be measured by the measuring tool. The face difference at the waistline position of the rear door specifically refers to the face difference at the waistline position on the rear door outer panel. The rear door face difference design value specifically refers to the design value of the face difference at the waistline position of the rear door, which is a theoretical value.

[0088] If the outward exposure of the surface difference at the waistline of the rear door is greater than or equal to Amm, the front door needs to be adjusted outward during assembly to ensure the appearance, which will result in a larger sealing gap between the front door and the side panel assembly.

[0089] If the difference between the flushness at the waistline of the C-pillar and the design value of the flushness of the side panel meets the second tolerance requirement, it means that the side panel meets the requirement. If the difference between the flushness at the waistline of the front door and the design value of the flushness of the front door meets the second tolerance requirement, and the difference between the flushness at the waistline of the rear door and the design value of the flushness of the rear door meets the second tolerance requirement, it means that the door panel meets the requirement.

[0090] Through the above steps, the surface difference problems of the side outer panel and the door outer panel can be sorted out, and then the parts that do not meet the requirements can be rectified.

[0091] In the embodiment of the present invention, specific judgment conditions are provided for judging whether the door outer panel and the side outer panel meet the requirements.

[0092] The sealing gap between the door assembly and the side panel assembly includes the sealing gap in the window frame area and the sealing gap in the inner panel area. Figure 4 If the door outer panel and the side panel outer panel meet the requirements, step 105 determines whether the inner component meets the requirements according to the sealing gap between the door assembly and the side panel assembly, including:

[0093] Step 1051, if the door outer panel and the side panel outer panel meet the requirements, determine whether the difference between the window frame area sealing gap and the window frame gap design value meets the third tolerance requirement.

[0094] Specifically, when the door assembly posture meets the requirements, and the door outer panel and the side panel outer panel meet the requirements, the next step of analysis is carried out. The sealing gap between the door assembly and the side panel assembly can be decomposed into two parts, namely, the sealing gap in the window frame area and the sealing gap in the inner panel area for analysis, so as to quickly find out whether the problem point is in the door window frame or the door inner panel.

[0095] First, the sealing gap in the window frame area is analyzed. The sealing gap in the window frame area is related to the surface difference of the door window frame and the surface difference of the side panel stop. The sealing gap in the window frame area is specifically the sealing gap between the door window frame and the side panel stop. The design value of the window frame gap specifically refers to the design value of the sealing gap in the window frame area, which is a theoretical value. The third tolerance requirement can be designed according to actual needs, and the embodiment of the present invention does not make specific limitations. If the difference between the sealing gap in the window frame area and the design value of the window frame gap meets the third tolerance requirement, it means that there is no problem with the sealing gap in the window frame area.

[0096] Step 1052, if the difference between the sealing gap in the window frame area and the design value of the window frame gap does not meet the third tolerance requirement, determine whether the door window frame meets the requirement based on the door window frame surface difference, and determine whether the side panel stop meets the requirement based on the side panel stop surface difference.

[0097] Specifically, when the difference between the sealing gap in the window frame area and the design value of the window frame gap does not meet the third tolerance requirement, it is necessary to further determine whether the problem lies in the door window frame or the side panel stop. Specifically, determine whether the door window frame meets the requirements based on the surface difference of the door window frame, and determine whether the side panel stop meets the requirements based on the surface difference of the side panel stop.

[0098] Determining whether the door window frame meets the requirements based on the door window frame face difference includes: determining whether the difference between the door window frame face difference and the window frame face difference design value meets the fourth tolerance requirement. Determining whether the side panel stopper meets the requirements based on the side panel stopper face difference includes: determining whether the difference between the side panel stopper face difference and the stopper face difference design value meets the fifth tolerance requirement.

[0099] If the sealing gap in the window frame area is larger than the design value of the window frame gap, that is, it does not meet the requirements, then we further check whether the difference between the door window frame surface difference and the design value of the window frame surface difference meets the fourth tolerance requirement. If it does not meet the requirement, such as the door window frame surface difference is exposed to a large extent, and the amount of the door window frame surface difference exposed is consistent with the amount of the sealing gap in the window frame area that is larger, then it is determined that the problem lies in the door window frame, and the door window frame needs to be rectified.

[0100] Step 1053, determining whether the difference between the inner panel area sealing gap and the inner panel gap design value meets the third tolerance requirement.

[0101] Specifically, the inner panel area sealing gap is the sealing gap between the door inner panel and the side panel stop. The inner panel gap design value refers to the design value of the inner panel area sealing gap, which is a theoretical value. If the difference between the inner panel area sealing gap and the inner panel gap design value meets the third tolerance requirement, it means that there is no problem with the inner panel area sealing gap.

[0102] Step 1054, if the difference between the inner panel area sealing gap and the inner panel gap design value does not meet the third tolerance requirement, determine whether the door inner panel meets the requirement based on the door inner panel sealing surface offset value, and determine whether the side panel stop meets the requirement based on the side panel stop offset value.

[0103] Specifically, when the difference between the sealing gap of the inner panel area and the design value of the inner panel gap does not meet the third tolerance requirement, it is necessary to further determine whether the problem lies in the door inner panel or the side panel stop. Specifically, determine whether the door inner panel meets the requirements based on the offset value of the door inner panel sealing surface, and determine whether the side panel stop meets the requirements based on the offset value of the side panel stop.

[0104] The offset value of the sealing surface of the door inner panel specifically refers to the offset value of the sealing surface of the door inner panel along the Y direction. Determining whether the door inner panel meets the requirements according to the offset value of the sealing surface of the door inner panel includes: judging whether the offset value of the sealing surface of the door inner panel is less than or equal to the first offset error. If the offset value of the sealing surface of the door inner panel is less than or equal to the first offset error, it means that the door inner panel meets the requirements, otherwise, the door inner panel does not meet the requirements.

[0105] The side panel stopper offset value specifically refers to the offset value of the side panel stopper along the Y direction. Determining whether the side panel stopper meets the requirements based on the side panel stopper offset value includes: judging whether the side panel stopper offset value is less than or equal to the second offset error. The first offset error and the second offset error can be set according to actual needs, and the embodiment of the present invention does not make specific limitations. If the side panel stopper offset value is less than or equal to the second offset error, it means that the side panel stopper meets the requirements, otherwise, the side panel stopper does not meet the requirements.

[0106] In the embodiment of the present invention, the offset value of the sealing surface of the inner door panel can be determined by the blue light data of the door assembly. The offset value of the sealing surface of the inner door panel and the offset value of the side panel stop can also be compared with the sealing gap of the inner panel area measured on the body-in-white. If the sealing gap of the inner panel area does not meet the requirements, and the deviation of the sealing gap of the inner panel area matches the deviation of the offset value of the sealing surface of the inner door panel or the deviation of the offset value of the side panel stop, it means that the inner door panel or the side panel stop does not meet the requirements, and the unqualified parts need to be rectified accordingly.

[0107] Step 104 outputs an abnormal outer panel result if the door outer panel and the side outer panel do not meet the requirements, and further includes: if the door outer panel and the side outer panel both meet the requirements, outputs an outer panel qualified result.

[0108] Specifically, the outer panel qualified result is used to indicate that both the door outer panel and the side outer panel are qualified. In the embodiment of the present invention, by outputting the outer panel qualified result, it is indicated that both the door outer panel and the side outer panel meet the requirements, that is, there is no problem with the door outer panel and the side outer panel.

[0109] Step 106 outputs an abnormal result of the inner component if the inner component does not meet the requirements, and further includes: if the inner door panel, the door window frame and the side panel stopper all meet the requirements, outputs a qualified result of the inner component.

[0110] Specifically, the qualified result of the inner component is used to indicate that the inner door panel, the door window frame and the side panel stopper are all qualified. In the embodiment of the present invention, the qualified result of the inner component indicates that the inner door panel, the door window frame and the side panel stopper all meet the requirements, that is, there are no problems with the inner door panel, the door window frame and the side panel stopper.

[0111] In summary, the door sealing gap analysis method provided by the embodiment of the present invention can quickly find the problem points from the many factors affecting the sealing gap during the trial production stage of the vehicle, so as to make corrections.

[0112] It can be understood that the above examples are merely examples listed for better understanding of the technical solutions of the embodiments of the present invention, and are not intended to be the sole limitations on the embodiments of the present invention.

[0113] The above embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent substitution or change made by a person skilled in the art based on the present invention is within the protection scope of the present invention.

Claims

1. A door sealing gap analysis method, characterized in that: include: Determine whether the posture of the door assembly meets the requirements; If the door assembly posture does not meet the requirements, the hinge point abnormality result is output; If the door assembly posture meets the requirements, judging whether the door outer panel and the side outer panel meet the requirements according to the side outer panel surface difference, the front door outer panel surface difference and the rear door outer panel surface difference; If the door outer panel and the side panel outer panel do not meet the requirements, an outer panel abnormality result is output; If the door outer panel and the side panel outer panel meet the requirements, then determine whether the inner component meets the requirements according to the sealing gap between the door assembly and the side panel assembly, wherein the inner component includes the door inner panel, the door window frame and the side panel stopper; If the inner component does not meet the requirements, an inner component abnormality result is output.

2. The door sealing gap analysis method according to claim 1, characterized in that: The step of judging whether the door assembly posture meets the requirements includes: Whether the door assembly posture meets the requirements is judged based on the installation surface difference between the upper hinge installation surface of the side panel and the lower hinge installation surface of the side panel, the Y-axis deviation between the upper hinge nut hole of the door and the lower hinge nut hole of the door, and the extreme difference between the sealing gap at the upper hinge and the sealing gap at the lower hinge.

3. The door sealing gap analysis method according to claim 2, characterized in that: The step of judging whether the door assembly posture meets the requirements based on the installation surface difference between the side panel upper hinge installation surface and the side panel lower hinge installation surface, the Y-direction deviation between the door upper hinge nut hole and the door lower hinge nut hole, and the extreme difference between the sealing gap at the upper hinge and the sealing gap at the lower hinge includes: Determine whether the difference between the mounting surface difference and the mounting surface difference design value meets the first tolerance requirement, and determine whether the extreme difference of the mounting surface difference is less than or equal to a first preset value; Determine whether the difference between the Y-direction deviation and the deviation design value meets the first tolerance requirement, and determine whether the extreme difference of the Y-direction deviation is less than or equal to a second preset value; It is determined whether the range of the sealing gap at the upper hinge and the sealing gap at the lower hinge is less than or equal to a third preset value.

4. The door sealing gap analysis method according to claim 3, characterized in that: The first tolerance requirement is plus or minus 0.5 mm, and the first preset value, the second preset value, and the third preset value are all 0.6 mm.

5. The door sealing gap analysis method according to claim 1, characterized in that: The side panel outer panel surface difference includes the surface difference at the C-pillar waistline position, the front door outer panel surface difference includes the surface difference at the front door waistline position, and the rear door outer panel surface difference includes the surface difference at the rear door waistline position; If the door assembly posture meets the requirements, judging whether the door outer panel and the side outer panel meet the requirements according to the side outer panel surface difference, the front door outer panel surface difference and the rear door outer panel surface difference includes: If the door assembly posture meets the requirement, determining whether the difference between the face difference at the waistline position of the C-pillar and the design value of the side wall face difference meets the second tolerance requirement; Determining whether the difference between the face difference at the waistline position of the front door and the design value of the face difference of the front door meets the second tolerance requirement; Determine whether the difference between the face difference at the rear door waistline position and the rear door face difference design value meets the second tolerance requirement.

6. The door sealing gap analysis method according to claim 1, characterized in that: The sealing gap between the door assembly and the side panel assembly includes a sealing gap in the window frame area and a sealing gap in the inner panel area. If the door outer panel and the side panel outer panel meet the requirements, determining whether the inner component meets the requirements according to the sealing gap between the door assembly and the side panel assembly includes: If the door outer panel and the side panel outer panel meet the requirements, determining whether the difference between the window frame area sealing gap and the window frame gap design value meets the third tolerance requirement; If the difference between the sealing gap in the window frame area and the design value of the window frame gap does not meet the third tolerance requirement, determining whether the door window frame meets the requirement according to the surface difference of the door window frame, and determining whether the side panel stopper meets the requirement according to the surface difference of the side panel stopper; Determining whether the difference between the inner panel area sealing gap and the inner panel gap design value meets the third tolerance requirement; If the difference between the sealing gap of the inner panel area and the design value of the inner panel gap does not meet the third tolerance requirement, then determine whether the door inner panel meets the requirement based on the sealing surface offset value of the door inner panel, and determine whether the side panel stop meets the requirement based on the side panel stop offset value.

7. The door sealing gap analysis method according to claim 6, characterized in that: If the inner component does not meet the requirements, after outputting the inner component abnormal result, the method further includes: If the door inner panel, the door window frame and the side panel stop all meet the requirements, the qualified result of the inner component is output.

8. The door sealing gap analysis method according to claim 6, characterized in that: If the door outer panel and the side outer panel do not meet the requirements, after outputting the outer panel abnormality result, the method further includes: If both the door outer panel and the side panel outer panel meet the requirements, the outer panel qualified result is output.

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