Automobile front leaf inner plate measuring and detecting device

Abstract

The invention discloses an automobile front leaf inner plate measuring and detecting device, and relates to the field of automobile part detection, the automobile front leaf inner plate measuring and detecting device comprises a testing bin, an optical detection system, a wheel simulation mechanism, a lifting frame, a turnover frame, a road condition simulation conveying belt, a stock bin, a discharging hopper, a washing mechanism and the like, the turnover frame can turn over by 180 degrees, and switching of a front leaf inner plate between a testing position and a detection position is achieved; the road condition simulation conveying belt can simulate various road conditions, the stock bin supplies splash simulants to the discharging hopper through the elevator and simulates a splash scene in the running process, the first washing mechanism can wash and blow-dry an inner plate, the optical detection system detects damage, and splash at the bottom of the test bin can flow back to the stock bin to be recycled. The device is high in automation degree, accurate in detection, capable of saving resources and suitable for efficient detection of the front leaf inner plate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile part detection, and particularly relates to a measuring and detecting device for a front inner panel of an automobile. BACKGROUND

[0002] As a key component of automobile body coverings, the front inner panel not only plays a role in decorating the body, but also bears important functions such as protecting the internal structure of the body, reducing air resistance during driving, and resisting external debris impact. Its dimensional accuracy directly affects the assembly compatibility with surrounding parts. If there is a size deviation, it may cause uneven gaps in the body, water and air leakage, and other problems. The surface quality and structural strength are related to the corrosion resistance, safety, and service life of the automobile. Once damaged during use, not only the maintenance cost will increase, but also the driving safety may be threatened. Therefore, in the automobile manufacturing industry, the quality detection of the front inner panel is an indispensable key link in the production process.

[0003] Currently, there are many limitations in the detection of the front inner panel of the automobile, such as patent numbers CN217542367U, CN119413103A, etc. Traditional manual detection mainly relies on the experience and measuring tools of the detection personnel, such as calipers, micrometers, etc. This method not only has a great labor intensity, but also has a low detection efficiency, which is difficult to meet the needs of modern large-scale production. More importantly, manual detection is highly subjective, and the judgment standards of different detection personnel may differ, which easily leads to deviations in the detection results and cannot guarantee the consistency and accuracy of the detection. At the same time, manual detection can only judge some simple sizes and surface defects, and it is difficult to detect some subtle damage, internal stress changes, etc., which has a large quality risk.

[0004] Existing single detection equipment also cannot meet the needs of comprehensive detection. Some equipment can only perform static size measurement and cannot simulate the dynamic working conditions of the automobile during actual driving. The front inner panel is affected by various complex factors such as impact from different road conditions, impact from splashing objects, and washing from rainwater when the vehicle is driving. These dynamic factors cannot be covered by static detection. For example, when driving on muddy roads, the mud thrown up by the wheels will continuously impact the front inner panel, which may cause surface coating wear and tear and structural deformation. In rainy and snowy weather, corrosive mud water will adhere to the surface, causing rust. On bumpy roads, the vibration of the body may cause the front inner panel to rub against surrounding parts, affecting its service life.

[0005] In addition, the existing detection equipment also has defects in simulating real scenes. Either cannot simulate the switching of multiple road conditions, or cannot accurately reproduce the impact effect of different splashes, and for the splashes and other consumables generated during the detection process, most are disposable, not only causing waste of resources, but also increasing the detection cost. At the same time, the cleaning treatment of the surface of the front leaf inner plate before detection is often not thorough enough, and the residual impurities will affect the accuracy of the detection result, and then affect the judgment of the quality of the front leaf inner plate.

[0006] Therefore, it has important practical significance to develop a device that can simulate multiple driving road conditions and realize comprehensive, efficient and accurate detection of the front leaf inner plate of the automobile. SUMMARY

[0007] To solve the technical problems in the background art, the present application provides a kind of automobile front leaf inner plate measurement detection device.

[0008] The automobile front leaf inner plate measurement detection device provided by the present application comprises:

[0009] The test bin is opened at the top, and a sewage discharge port is arranged at the bottom;

[0010] The optical detection system is fixedly installed at the upper part of the test bin, and the detection end faces the inside of the test bin;

[0011] The wheel simulation mechanism is installed in the middle region of the test bin;

[0012] The lifting frame is vertically slidably connected between the two side walls of the test bin by a lifting mechanism;

[0013] The turnover frame is rotationally connected to the middle part of the lifting frame, and a groove for positioning and installing the front leaf inner plate is formed in the turnover frame. The groove can be switched between two stations by rotating the turnover frame:

[0014] When the groove faces downward, the groove corresponds to the wheel simulation mechanism;

[0015] When the groove faces upward, the groove corresponds to the detection end of the optical detection system;

[0016] The road condition simulation conveyor belt is located below the wheel simulation mechanism and is vertically slidably connected between the two side walls of the test bin by a lifting mechanism;

[0017] The hopper is communicated with the inside of the test bin through a pipeline at the bottom, and a lifting machine is installed at the top of the hopper;

[0018] A lower hopper is fixed to the lifting frame, and an output end of the elevator is communicated with the lower hopper through a conduit, and a discharge port of the lower hopper faces the front end of the road condition simulation conveying belt;

[0019] A first flushing mechanism is installed at the bottom of the lifting frame through a lifting driving assembly, and a nozzle of the first flushing mechanism faces the bottom side of the groove of the turnover frame;

[0020] A second flushing mechanism is installed at the lower part of the test chamber, and a nozzle of the second flushing mechanism faces the outer surface of the road condition simulation conveying belt.

[0021] Preferably, the end of the rotation shaft of the turnover frame is drivingly connected with a turnover driving motor, the turnover driving motor is fixed to the lifting frame, and the turnover driving motor drives the turnover frame to rotate 180° around the rotation shaft through an output torque, so as to automatically switch the groove between the downward test position and the upward detection position.

[0022] The turnover frame is automatically rotated 180° by the turnover driving motor, so as to automatically switch the groove between the test position and the detection position, without manual operation, thereby improving the automation degree and working efficiency of the device, and ensuring the accuracy of the turnover angle, so as to ensure that the front inner leaf plate is in the accurate position during the test and detection, and improve the reliability of the detection.

[0023] Preferably, the road condition simulation conveying belt is installed in the test chamber through a polyhedral column, the polyhedral column is a regular prism structure, each side of the polyhedral column is independently fixed with a group of road condition simulation conveying belts, and the conveying surfaces of each group of road condition simulation conveying belts are constructed as different road condition simulation structures.

[0024] The polyhedral column is driven to rotate around the central axis thereof by a driving member, and the rotation can switch the road condition simulation conveying belts on different sides to the test positions corresponding to the wheel simulation mechanism.

[0025] The design of the polyhedral column enables the device to simultaneously install a plurality of groups of conveying belts with different road condition simulation structures, and the polyhedral column is driven to rotate by the driving member, so as to quickly switch the different road condition simulation conveying belts, which is simple and convenient to operate, greatly shortens the time for replacing the road condition simulation structure, and improves the detection efficiency. Meanwhile, the different road condition simulation structures can more comprehensively simulate the driving conditions of the automobile on various actual roads, so that the detection of the front inner leaf plate is more comprehensive and authentic.

[0026] Preferably, the wheel simulation mechanism comprises a driving motor and a tire assembly, an output shaft of the driving motor is drivingly connected with the tire assembly, and a wheel surface of the tire assembly is oppositely arranged with the upper surface of the road condition simulation conveying belt.

[0027] The driving motor drives the tire assembly to rotate, which can accurately simulate the rotation state of the wheel when the vehicle is driving, and the tire assembly cooperates with the road condition simulation conveying belt to truly reproduce the contact and friction between the wheel and the road surface. The structure design makes the wheel simulation more realistic, thereby ensuring the accuracy of the test of the splash simulation, the influence of the road condition on the front fender inner panel, and the like, and providing a strong guarantee for the reliability of the test result.

[0028] Preferably, the road condition simulation conveying belt comprises a conveying belt body, a driving roller set and a speed regulation motor, the speed regulation motor is in transmission connection with the driving roller set, and a conveying surface of the conveying belt body is provided with a medium layer of simulated road condition and has an adjustable running speed.

[0029] The speed regulation motor can conveniently adjust the running speed of the conveying belt body, simulate the road condition of the vehicle under different driving speeds, and increase the diversity and flexibility of the test. The medium layer of simulated road condition provided on the surface of the conveying belt body further enhances the authenticity of the road condition simulation, so that the test environment is closer to the actual situation, and the performance of the front fender inner panel under different speeds and road conditions can be more accurately detected.

[0030] Preferably, the stock bin is used for storing splash simulation objects, and the splash simulation objects include but are not limited to mud and sand, gravel, mud-water mixture or ice and snow simulation particles.

[0031] The elevator lifts and conveys the splash simulation objects in the stock bin to the lower hopper to pour and simulate the splash scene in the driving process.

[0032] The stock bin can store various types of splash simulation objects, which can simulate various splash situations encountered by the vehicle when driving in different environments, such as mud and sand splashing on muddy roads, gravel impact on gravel roads, mud and snow particles splashing in rainy and snowy weather, and the like. The setting of the elevator realizes the automatic conveying and pouring of the splash simulation objects, ensures the continuity and stability of the splash scene simulation, and is beneficial to comprehensively detecting the ability of the front fender inner panel to resist damage from different splash objects.

[0033] Preferably, the first flushing mechanism and the second flushing mechanism each comprise a high-pressure spray head and a water supply pipeline, and a flow control valve is arranged on the water supply pipeline.

[0034] The high-pressure spray head can provide strong water flow to ensure the flushing effect and effectively remove the splash on the surface of the front fender inner panel and the impurities on the road condition simulation conveying belt. The flow control valve can flexibly adjust the size of the water flow, which can be adjusted according to different cleaning needs and scenes, thereby ensuring the cleaning effect, avoiding waste of water resources, and improving the energy saving and environmental protection of the device.

[0035] Preferably, the lifting drive assembly of the first flushing mechanism is a cylinder or an electric push rod, the fixed end of which is connected with the lifting frame, and the output end is fixedly connected with the nozzle of the first flushing mechanism.

[0036] As the lifting drive assembly, the cylinder or the electric push rod has the characteristics of fast response speed, smooth operation and precise control, and can quickly and accurately adjust the height position of the nozzle of the first flushing mechanism. In this way, the nozzle can always be in the best flushing position according to the size and installation position of the front inner panel, ensuring the uniformity and thoroughness of the flushing effect and providing a clean detection surface for subsequent optical detection.

[0037] Preferably, the optical detection system comprises an industrial camera, a ring light source and an image processor, the lens of the industrial camera is opposite to the groove of the turnover frame, and the image processor is electrically connected with the industrial camera.

[0038] The industrial camera can clearly capture the image of the front inner panel, the ring light source provides uniform and sufficient illumination, avoiding shadows during shooting, and ensuring the clarity and quality of the image. The image processor processes and analyzes the image captured by the industrial camera, can accurately obtain the size precision, surface defects, corrosion degree and physical damage of the front inner panel after being damaged by splashes and other information, has high detection precision and speed, and provides accurate and reliable data support for quality evaluation of the front inner panel.

[0039] In the application, the automobile front inner panel measuring and detecting device has the following beneficial effects:

[0040] The device can simulate various driving road conditions, including different road types, splash scenes and flushing conditions, and obtain data at different time periods through intermittent detection, which can effectively analyze the material performance of the front inner panel, simulate the environment of the front inner panel in the actual driving process of the automobile, and make the detection result more realistic and reliable.

[0041] The optical detection system is used for detection, combined with the analysis and processing of the image processor, the detection precision is high, and the size, surface information and damage condition of the front inner panel can be accurately obtained.

[0042] The device realizes automatic operation, the lifting frame and the road condition simulation conveying belt can be flexibly lifted, the front inner panel is convenient to disassemble and replace, and the processes from installing the workpiece to detection, testing, flushing, blow-drying and result analysis can be automatically completed, so that the detection efficiency is greatly improved and the labor intensity is reduced.

[0043] The structures of the components are reasonable, the positions of the components are flexibly adjusted through lifting and turnover mechanisms, the detection requirements of front inner panels of different specifications are met, and the versatility is high.

[0044] The first flushing mechanism has flushing and blowing functions, can ensure that the surface of the front leaf inner plate is clean and dry, and guarantees the accuracy of optical detection; the second flushing mechanism and the sewage outlet are arranged, so that impurities and sewage generated in the detection process can be removed in time, and the cleanliness and normal operation of the device are guaranteed.

[0045] The recycling of the splash simulation object is realized, resource consumption and waste discharge are reduced, detection cost is reduced, and energy saving and environmental protection are achieved.

[0046] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter in the description. BRIEF DESCRIPTION OF DRAWINGS

[0047] Figure 1 It is a structural schematic diagram of the present application;

[0048] Figure 2 It is a front view of the present application;

[0049] Figure 3 It is a front view of the present application in a simulation state;

[0050] Figure 4 It is a schematic diagram of the internal structure of the present application;

[0051] Figure 5 It is a schematic diagram of the structure of the present application in a detection state;

[0052] Figure 6 It is a schematic diagram of the structure of the road condition simulation mechanism in the present application;

[0053] Explanation of reference numerals in the drawing:

[0054] 1, test bin; 2, optical detection system; 3, lifting frame; 301, turnover frame; 4, road condition simulation conveying belt; 401, driving piece; 402, polyhedral column; 5, stock bin; 501, elevator; 502, discharge hopper; 503, guide pipe; 6, wheel simulation mechanism; 7, first flushing mechanism; 8, second flushing mechanism. DETAILED DESCRIPTION

[0055] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar symbols represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation on the present application.

[0056] As Figures 1-6The automobile front leaf inner plate measuring and detecting device shown comprises a test bin 1, an optical detecting system 2, a wheel simulation mechanism 6, a lifting frame 3, a turnover frame 301, a road condition simulation conveying belt 4, a stock bin 5, a lower hopper 502, a first flushing mechanism 7 and a second flushing mechanism 8.

[0057] The test bin 1 is provided with an opening at the top and a sewage discharge port at the bottom, so as to provide a closed space for the detecting work of the whole device, and the sewage discharge port at the bottom is convenient for discharging sewage and sundries generated in the detecting process.

[0058] The optical detecting system 2 is fixedly installed at the upper portion of the test bin 1, and the detecting end thereof faces the inside of the test bin 1, and is used for high-precision optical detection of the front leaf inner plate. The optical detecting system 2 comprises an industrial camera, a ring-shaped light source and an image processor. The lens of the industrial camera is directly opposite the groove of the turnover frame 301, and the image processor is electrically connected with the industrial camera. The industrial camera is used for shooting the image of the front leaf inner plate, the ring-shaped light source provides sufficient and uniform illumination to ensure the definition of the image, and the image processor processes and analyzes the shot image to obtain the related size, surface information and corrosion degree and physical damage caused by the splashing of the front leaf inner plate.

[0059] The wheel simulation mechanism 6 is installed at the middle region of the test bin 1 and comprises a driving motor and a tire assembly. The output shaft of the driving motor is in transmission connection with the tire assembly, and the wheel surface of the tire assembly is oppositely arranged with the upper surface of the road condition simulation conveying belt 4. The driving motor drives the rotation of the tire assembly to simulate the rotation state of the wheel when the automobile is running.

[0060] The lifting frame 3 is vertically and slidingly connected between the two side inner walls of the test bin 1 through a lifting mechanism, and can be driven by the lifting mechanism to move up and down, so as to drive the components installed thereon to flexibly adjust the position and adapt to different detecting requirements.

[0061] The turnover frame 301 is rotationally connected to the middle portion of the lifting frame 3. The turnover frame 301 is provided with a groove for positioning and installing the front leaf inner plate. The front leaf inner plate is installed in the groove through a detachable structure such as a buckle or a bolt, so as to be quickly disassembled and replaced. The rotation shaft end portion of the turnover frame 301 is in transmission connection with a turnover driving motor. The turnover driving motor is fixed to the lifting frame 3 and drives the turnover frame 301 to rotate 180° around the rotation shaft through the output torque, so as to automatically switch the groove between the downward test position and the upward detecting position. When the groove faces downward, the groove corresponds to the wheel simulation mechanism 6, and the related test during the simulation running can be carried out. At this time, the splashing simulation object will splash onto the front leaf inner plate to cause corrosion or physical damage. When the groove faces upward, the groove corresponds to the detecting end of the optical detecting system 2, so as to facilitate the detection of the front leaf inner plate after the treatment by the optical detecting system 2.

[0062] The road condition simulation conveying belt 4 is located below the wheel simulation mechanism 6, is vertically slidably connected between the two side inner walls of the test chamber 1 through a lifting mechanism, can be lifted according to test requirements, and flexibly adjusts the distance between the wheel simulation mechanism 6, so as to simulate the driving state under different tire pressures or vehicle body heights. The road condition simulation conveying belt 4 is installed in the test chamber 1 through a polyhedral column 402, the polyhedral column 402 is a regular prism structure, each side surface of the polyhedral column 402 is independently fixed with a group of road condition simulation conveying belts 4, and the conveying surfaces of each group of road condition simulation conveying belts 4 are constructed as different road condition simulation structures, such as dry road surface, wet and slippery road surface, bumpy road surface and the like. The polyhedral column 402 is driven to rotate around the central axis thereof through a driving member 401, and different side surfaces of the road condition simulation conveying belt 4 can be switched to the test position corresponding to the wheel simulation mechanism 6 through rotation, so as to simulate different driving road conditions. The road condition simulation conveying belt 4 comprises a conveying belt body, a driving roller group and a speed regulating motor, the speed regulating motor is in transmission connection with the driving roller group, the running speed of the conveying belt body can be adjusted, the conveying surface of the conveying belt body can be provided with a medium layer of simulated road condition, and the authenticity of road condition simulation is further enhanced.

[0063] The bottom of the hopper 5 is communicated with the inside of the test chamber 1 through a pipeline, and the top of the hopper 5 is provided with an elevator 501 for storing splash simulation objects such as sand, gravel, mud-water mixture or ice-snow simulation particles and the like. The splash simulation objects at the bottom of the test chamber 1 can be returned to the hopper 5 through a pipeline, so that the splash simulation objects can be recycled, and resource waste and cost investment are reduced.

[0064] The lower hopper 502 is fixed to the lifting frame 3, the output end of the elevator 501 is communicated with the lower hopper 502 through a guide pipe 503, and the discharge port of the lower hopper 502 faces the front end of the road condition simulation conveying belt 4. The elevator 501 lifts and conveys the splash simulation objects in the hopper 5 to the lower hopper 502, and then the simulation objects are discharged to the front end of the road condition simulation conveying belt 4 through the lower hopper 502 to simulate the splash of the wheels during driving of the vehicle, and the splash can splash onto the front inner panel in the test position to cause corrosion or physical damage.

[0065] The first flushing mechanism 7 is installed at the bottom of the lifting frame 3 through a lifting driving assembly, the nozzle of the first flushing mechanism 7 faces the groove bottom side of the turnover frame 301, and the first flushing mechanism 7 comprises a high-pressure nozzle, a water supply pipeline, a blowing assembly and a flow control valve. The water supply pipeline and the blowing assembly are respectively connected with the high-pressure nozzle, and the flow control valve is arranged on the water supply pipeline. The position of the first flushing mechanism 7 can be adjusted through the lifting driving assembly. After the test is completed, the high-pressure nozzle first sprays water flow to flush the front inner panel on the groove bottom side of the turnover frame 301, so that the splash on the surface is washed clean, and then the blowing assembly works to blow air outward through the high-pressure nozzle, so that the water on the surface of the front inner panel is blown clean, so that the subsequent optical detection system 2 can accurately detect the damage.

[0066] The second flushing mechanism 8 is installed at the lower part of the test bin 1, and the spray head thereof faces the outer surface of the road condition simulation conveying belt 4, and also comprises a high-pressure spray head and a water supply pipeline provided with a flow control valve. The outer surface of the road condition simulation conveying belt 4 is flushed to remove the simulation objects and impurities on the conveying belt, so as to ensure the accuracy of the road condition simulation. The splashed simulation objects are collected with the water flow to the bottom of the test bin 1, and then are returned to the stock bin 5 through the pipeline to participate in the next recycling.

[0067] In the working process of the embodiment, the following steps are performed:

[0068] The front leaf inner plate to be detected is installed in the groove of the turnover frame 301, at this time, the turnover frame 301 is in a detection position with the groove facing upward, and the optical detection system 2 performs initial detection on the front leaf inner plate to obtain the initial size and surface information of the front leaf inner plate.

[0069] The turnover driving motor is started to drive the turnover frame 301 to rotate by 180° so that the groove faces downward, at this time, the groove corresponds to the wheel simulation mechanism 6. At the same time, the lifting frame 3 adjusts the position under the driving of the lifting mechanism, and the road condition simulation conveying belt 4 also adjusts the height through the lifting mechanism, so that the front leaf inner plate and the road condition simulation conveying belt 4 are in a suitable test position.

[0070] According to the road condition to be simulated, the driving member 401 drives the polyhedral column 402 to rotate, so as to switch the corresponding road condition simulation conveying belt 4 to the test position corresponding to the wheel simulation mechanism 6.

[0071] The elevator 501 is started to convey the splashed simulation objects in the stock bin 5 to the lower hopper 502 through the conduit 503, and the lower hopper 502 pours the simulation objects to the front end of the road condition simulation conveying belt 4. With the running of the road condition simulation conveying belt 4, the simulation objects are conveyed to the tire assembly to simulate the scene of the wheel rolling up the splashed objects, and the splashed objects are splashed onto the front leaf inner plate to cause corrosion or physical damage.

[0072] The driving motor is started to drive the tire assembly to rotate and cooperate with the road condition simulation conveying belt 4 to simulate the driving state of the automobile under the corresponding road condition. During the simulation, the simulation is intermittently stopped at a set time interval, the front leaf inner plate is turned over to the detection position through the turnover frame 301, and then is detected by the optical detection system 2 after being treated by the first flushing mechanism 7 to obtain the data in different time periods, so as to analyze the change of the material performance of the front leaf inner plate.

[0073] After the test is completed, the front leaf inner plate can be disassembled from the groove of the turnover frame 301, and a new front leaf inner plate is replaced for the next detection.

[0074] During the test, the second flushing mechanism 8 can periodically flush the road condition simulation conveyor belt 4 to keep the surface of the conveyor belt clean. The sewage containing the splash simulation generated by the flushing is collected at the bottom of the test bin 1, and the splash simulation at the bottom of the test bin 1 is returned to the stock bin 5 through the pipeline to realize recycling. Other sewage and sundries generated during the detection process are discharged through the sewage outlet at the bottom of the test bin 1.

[0075] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A measuring and detecting device for the inner panel of a front fender of an automobile, characterized in that: include: A test chamber (1), the top of the test chamber (1) is open and the bottom of the test chamber is provided with a sewage outlet; An optical detection system (2) is fixedly mounted on the upper portion of the test chamber (1), with its detection end facing the interior of the test chamber (1); A wheel simulation mechanism (6) is installed in the middle area of ​​the test chamber (1); A lifting frame (3) is vertically slidably connected between two inner walls of the test chamber (1) via a lifting mechanism; The turning frame (301) is rotatably connected to the middle part of the lifting frame (3). The turning frame (301) is provided with a groove for positioning and installing the front fender inner plate. The turning frame (301) can be rotated to switch the groove between two positions: When the groove is facing downward, the groove corresponds to the wheel simulation mechanism (6); When the groove is facing upward, the groove corresponds to the detection end of the optical detection system (2); A road condition simulation conveyor belt (4) is located below the wheel simulation mechanism (6), and the road condition simulation conveyor belt (4) is vertically slidably connected between the inner walls on both sides of the test chamber (1) via a lifting mechanism; A silo (5), the bottom of which is in communication with the interior of the test silo (1) via a pipeline, and a hoist (501) is installed on the top of the silo (5); A lower hopper (502) is fixed on the lifting frame (3); the output end of the elevator (501) is connected to the lower hopper (502) through a conduit (503); and the discharge port of the lower hopper (502) faces the front end of the road condition simulation conveyor belt (4); A first flushing mechanism (7) is installed at the bottom of the lifting frame (3) through a lifting drive assembly, and a nozzle of the first flushing mechanism (7) faces the bottom side of the groove of the turning frame (301); The second flushing mechanism (8) is installed at the lower part of the test chamber (1), and its nozzle is directed toward the outer surface of the road condition simulation conveyor belt (4).

2. The vehicle front fender inner panel measuring and detecting device according to claim 1, characterized in that: The end of the rotating shaft of the flip frame (301) is connected to a flip drive motor, which is fixed to the lifting frame (3) and drives the flip frame (301) to rotate 180 degrees around the rotating shaft by outputting torque, thereby realizing automatic switching of the groove between the downward testing position and the upward detection position.

3. The vehicle front fender inner panel measuring and detecting device according to claim 1, characterized in that: The road condition simulation conveyor belt (4) is installed in the test chamber (1) via a polyhedral column (402), the polyhedral column (402) being a regular prism structure, each side of which independently fixes a group of the road condition simulation conveyor belts (4), and the conveying surface of each group of the road condition simulation conveyor belts (4) is constructed as a different road condition simulation structure; The polyhedral column (402) is driven to rotate around its own central axis by a driving member (401), and the road condition simulation conveyor belts (4) on different sides can be switched to test positions corresponding to the wheel simulation mechanism (6) through the rotation.

4. The vehicle front fender inner panel measuring and detecting device according to claim 1, characterized in that: The wheel simulation mechanism (6) comprises a drive motor and a tire assembly, wherein the output shaft of the drive motor is in transmission connection with the tire assembly, and the wheel surface of the tire assembly is arranged relative to the upper surface of the road condition simulation conveyor belt (4).

5. The vehicle front fender inner panel measuring and detecting device according to claim 1, characterized in that: The road condition simulating conveyor belt (4) comprises a conveyor belt body, a driving roller group and a speed regulating motor, wherein the speed regulating motor is in driving connection with the driving roller group, the conveying surface of the conveyor belt body can be covered with a medium layer simulating road conditions, and its running speed is adjustable.

6. The vehicle front fender inner panel measuring and detecting device according to claim 1, characterized in that: The silo (5) is used to store splash simulants, which include but are not limited to mud, sand, gravel, mud-water mixture or ice and snow simulation particles; The hoist (501) lifts the splashing material simulation in the silo (5) and conveys it to the lower hopper (502) to be delivered to the road condition simulation conveyor belt (4) and simulate the splashing scene during driving.

7. The vehicle front fender inner panel measuring and detecting device according to claim 1, characterized in that: The first flushing mechanism (7) and the second flushing mechanism (8) both comprise a high-pressure nozzle and a water supply pipeline, wherein the water supply pipeline is provided with a flow control valve.

8. The vehicle front fender inner panel measuring and detecting device according to claim 1, characterized in that: The lifting drive component of the first flushing mechanism (7) is a cylinder or an electric push rod, the fixed end of the cylinder or electric push rod is connected to the lifting frame (3), and the output end is fixedly connected to the nozzle of the first flushing mechanism (7).

9. The vehicle front fender inner panel measuring and detecting device according to claim 1, characterized in that: The optical detection system (2) comprises an industrial camera, a ring light source and an image processor, the lens of the industrial camera faces the groove of the flip frame (301), and the image processor is electrically connected to the industrial camera.

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