Device and method for detecting defects on appearance surface of automobile

Abstract

The invention belongs to the technical field of automobile appearance surface flaw detection, and particularly relates to an automobile appearance surface flaw detection device and a detection method.The automobile appearance surface flaw detection device comprises a base, a supporting rod is arranged at the top of the base, a second sliding groove and a first sliding groove are formed in the top of the base, a first sliding block is slidably installed in the second sliding groove, and the top of the first sliding block is fixed to one end of the supporting rod; a second sliding block is slidably installed in the first sliding groove, the top of the second sliding block is fixed to the other end of the supporting rod, a round rod is fixedly installed in the first sliding groove, and one end of the round rod penetrates through the second sliding block. The method can ensure that the appearance image collected by the camera is accurately matched with the preset detection coordinates, not only can greatly reduce the missed judgment rate and the misjudgment rate of tiny flaws such as scratches, recesses and chromatic aberration, but also can avoid algorithm recognition lagging caused by image positioning deviation, remarkably improves the accuracy and consistency of detection results, and improves the detection efficiency. And the strict precision requirement of high-end automobile manufacturing on appearance quality inspection is met.

Description

Technical Field

[0001] This invention belongs to the field of automotive exterior surface defect detection technology, and particularly relates to an automotive exterior surface defect detection device and detection method. Background Technology

[0002] In the automotive manufacturing and after-sales quality inspection field, the detection of defects in the vehicle's exterior is a key link in ensuring vehicle quality and user experience. As the automotive industry continues to increase its requirements for exterior precision, automated inspection devices that rely on cameras to collect exterior images and combine them with algorithms to identify defects have gradually replaced manual inspection and become the mainstream technical solution.

[0003] However, existing automated inspection devices lack reliable fastening structures during the inspection process. When the inspection device moves, there is airflow disturbance in the workshop environment, or there is slight vibration in the conveyor system, the vehicle is prone to slight displacement or shaking. This movement will cause the appearance image captured by the camera to deviate from the preset detection coordinates. This may not only cause the missed or misjudged defects such as scratches, dents, and color differences, but also seriously affect the accuracy of the inspection results. In addition, the camera lacks effective dust protection measures. The camera of the inspection device needs to be exposed to the workshop environment for a long time. However, there are usually pollutants such as metal dust, paint mist particles, and fiber impurities in automobile production or repair workshops. When the camera is idle, these pollutants are easy to adhere to the lens surface, forming stains or obstructions. It may also cause the image clarity captured by the camera to decrease due to lens wear or incomplete cleaning, making it impossible to accurately capture the details of small defects. In view of this, we propose an automobile exterior surface defect inspection device and inspection method. Summary of the Invention

[0004] The purpose of this invention is to provide an apparatus and method for detecting defects on the exterior of automobiles, so as to solve the problems mentioned in the background art.

[0005] In view of this, the present invention provides a device and method for detecting defects on the exterior of automobiles, comprising: a base, a support rod on the top of the base, a second slide groove and a first slide groove on the top of the base, a slider slidably mounted in the second slide groove, and the top of the slider slidably connected to one end of the support rod.

[0006] A slider two is slidably installed in the first slide groove. The top of the slider two is fixed to the other end of the support rod. A round rod is fixedly installed in the first slide groove, and one end of the round rod passes through the slider two. A driving component, located within the second slide groove, is used to drive the first slider to reciprocate. Four rectangular slots are provided, all of which are located within the base and between slide groove 2 and slide groove 1. A support plate is slidably installed in each rectangular slot. Several grooves are provided within the support rod, and a camera is fixedly installed in each groove. A power assembly, located within the base, is used to drive the four support plates to move up and down; A plurality of sealing components are located in a plurality of grooves and are used to seal the plurality of grooves.

[0007] In this technical solution, during use, personnel can drive the vehicle to be inspected onto the base until the four wheels of the vehicle are respectively located on top of the four support plates. Then, personnel can use the power unit to drive the four support plates downward. At this time, the wheels on the four support plates will fall into the four rectangular slots. With the blocking effect of the inner walls of the four rectangular slots, the vehicle to be inspected can be fixed on the base, preventing the vehicle from moving during the inspection process and ensuring that the inspection will not be inaccurate due to the vehicle moving at will. After the camera is finished using it, the personnel can seal the groove with the sealing component to ensure that no dust enters the groove, thus preventing dust from falling on the camera and ensuring the clarity of the camera's image. During inspection, personnel can drive slider one to move back and forth using the drive component. The reciprocating movement of slider one will drive the support rod to move back and forth, which in turn will drive slider two to move back and forth within slide groove one. At the same time, the reciprocating movement of the support rod will drive several cameras to move back and forth. The reciprocating movement of several cameras can perform comprehensive defect detection on the vehicle's exterior surface. The multiple cameras can perform multiple inspections to avoid missed detections and ensure accurate inspection results.

[0008] In the above technical solution, further, the driving assembly includes: a reciprocating lead screw, which is rotatably mounted in the slide groove two, and one end of the reciprocating lead screw passes through...

[0009] A sliding block is provided. A drive groove is provided inside the base and on one side of the sliding groove. A drive motor is fixedly installed in the drive groove. The output end of the drive motor passes through one side of the drive groove and is coaxially connected to the reciprocating lead screw.

[0010] In this technical solution, starting drive motor one causes the output shaft of drive motor one to drive the reciprocating lead screw to rotate. Under the action of the thread, the rotation of the reciprocating lead screw drives slider one to reciprocate. The reciprocating movement of slider one drives support rod to reciprocate. The reciprocating movement of support rod drives slider two to reciprocate within slide groove one. At the same time, the reciprocating movement of support rod drives several cameras to reciprocate. The reciprocating movement of several cameras can perform comprehensive defect detection on the vehicle's exterior surface. The multiple cameras can perform multiple inspections to avoid missed detections and ensure accurate detection results.

[0011] In the above technical solution, the reciprocating lead screw is threadedly connected to the slider, and the output shaft of the drive motor is rotatably connected to the base.

[0012] In this technical solution, it is ensured that the rotation of the reciprocating lead screw can drive the slider to move back and forth, and that the output shaft of the drive motor can rotate normally within the base.

[0013] In the above technical solution, further, the power assembly includes: a movable slot, which is opened in the base and located at the bottom of four rectangular slots; a top plate is slidably installed in the movable slot; two connecting rods are fixedly installed at the bottom of the support plate, and the bottom ends of the connecting rods are fixedly connected to the top plate; movable rods are symmetrically slidably installed at the bottom of the movable slot; two drive rods that rotate with the top plate are rotatably installed on one side of the movable rods; two guide rods are fixedly installed in the movable slot, and one end of the guide rod passes through the two movable rods; a bidirectional threaded rod is rotatably installed in the movable slot, and one end of the bidirectional threaded rod passes through the two movable rods; a power slot is opened in the base and located on one side of the movable slot; a second drive motor is fixedly installed in the power slot, and the output end of the second drive motor passes through one side of the power slot and is coaxially connected to the bidirectional threaded rod.

[0014] In this technical solution, starting the second drive motor causes its output shaft to rotate, which in turn drives the bidirectional threaded rod to rotate. Under the action of the thread, the rotation of the bidirectional threaded rod causes the two moving rods to move relative to each other.

[0015] When the moving rod moves, it causes the bottom ends of the two drive rods to move, which in turn causes the drive rods to rotate. The four drive rods then move the top plate downwards. The downward movement of the top plate, through several connecting rods, causes the four support plates to move downwards. At this time, the wheels on the four support plates fall into the four rectangular slots. The inner walls of the four rectangular slots act as a barrier, fixing the vehicle to be inspected on the base and preventing the vehicle from moving during the inspection process. This ensures that inaccurate inspections will not occur due to the vehicle moving arbitrarily.

[0016] In the above technical solution, the moving rod is slidably connected to the guide rod, the moving rod is threadedly connected to the bidirectional threaded rod, the bidirectional threaded rod is provided with two sections of threads with opposite directions of rotation, and the output shaft of the second drive motor is rotatably connected to the base.

[0017] In this technical solution, it is ensured that the moving rod can slide normally on the guide rod, that the rotation of the bidirectional threaded rod can drive the two moving rods to move closer or further apart, and that the output shaft of the second drive motor can rotate normally within the base.

[0018] In the above technical solution, the sealing assembly further includes: a through groove, the through groove being formed on the periphery of the groove and located on one side of the camera, a dustproof plate being slidably installed in the through groove, a handle being fixedly installed on one side of the dustproof plate, a second magnet being fixedly installed on the dustproof plate, and a first magnet being fixedly installed on the inner wall of the through groove and on one side of the second magnet.

[0019] In this technical solution, personnel can pull several handles, which will move the dust cover. At this time, magnet one and magnet two will be released from their magnetic attraction, allowing the dust cover to be opened and ensuring that the camera can be used normally. After the camera is finished using it, the personnel can close the dust cover again, causing magnet two on the dust cover to be attracted to magnet one, thereby fixing the dust cover. This ensures that when the camera is not in use, the dust cover can seal the groove, preventing dust from entering the groove and avoiding dust falling onto the camera, thus ensuring the clarity of the camera's image.

[0020] In the above technical solution, the first magnet and the second magnet are further magnetically connected.

[0021] In this technical solution, it is ensured that magnet one can be attracted to magnet two.

[0022] In the above technical solution, the second slider is further slidably connected to the round rod.

[0023] In this technical solution, it is ensured that slider two can slide normally on the round rod.

[0024] Further, the above technical solution includes the following method: Step S1: When in use, personnel can drive the vehicle to be tested onto the base until the four wheels of the vehicle are respectively located on the top of the four support plates. Then, personnel can start the second drive motor. The output shaft of the second drive motor will drive the bidirectional threaded rod to rotate. Under the action of the thread, the rotation of the bidirectional threaded rod will drive the two moving rods to move away from each other. The movement of the moving rods will drive the bottom ends of the two drive rods to move, thereby causing the drive rods to rotate. The four drive rods will drive the top plate to move downward. The downward movement of the top plate will drive the four support plates to move downward through several connecting rods. At this time, the wheels on the four support plates will fall into the four rectangular slots. Under the blocking action of the inner walls of the four rectangular slots, the vehicle to be tested can be fixed on the base, preventing the vehicle from moving during the testing process and ensuring that the test will not be inaccurate due to the vehicle moving at will. Step S2: Personnel can pull several handles respectively. Moving the handles will move the dust cover. At this time, magnet one and magnet two will be demagnetized, and personnel can open the dust cover to ensure that the camera can be used normally. Step S3: After the camera is finished using it, the personnel can close the dust cover again, so that the second magnet on the dust cover is attracted to the first magnet, thereby fixing the dust cover. This ensures that when the camera is not in use, the dust cover can seal the groove, preventing dust from entering the groove and avoiding dust from falling on the camera, thus ensuring the clarity of the camera's image. Step S4: During inspection, the operator can start drive motor one. The output shaft of drive motor one will drive the reciprocating screw to rotate. Under the action of the screw thread, the rotation of the reciprocating screw will drive slider one to move back and forth. The reciprocating movement of slider one will drive the support rod to move back and forth. The reciprocating movement of the support rod will drive slider two to move back and forth within the slide groove one. At the same time, the reciprocating movement of the support rod will drive several cameras to move back and forth. The reciprocating movement of several cameras can perform comprehensive defect detection on the vehicle's exterior surface. Several cameras can perform multiple reciprocating inspections to avoid missed detections and ensure accurate inspection results.

[0025] The beneficial effects of this invention are as follows: 1. The vehicle exterior surface defect detection device and method, through the setting of rectangular grooves, effectively avoid vehicle displacement and shaking during the detection process under the action of the fixed rectangular grooves. This ensures that the appearance image captured by the camera is accurately matched with the preset detection coordinates. This not only greatly reduces the missed detection rate and false detection rate of minor defects such as scratches, dents, and color differences, but also avoids algorithm recognition lag caused by image positioning deviations, significantly improving the accuracy and consistency of the detection results, and meeting the stringent precision requirements of high-end automobile manufacturing for appearance quality inspection.

[0026] 2. The automotive exterior defect detection device and method, through the setting of a sealing component, can effectively prevent the adhesion of contaminants such as metal dust, paint mist particles, and fiber impurities in the workshop. On the one hand, it can always maintain the cleanliness of the lens, ensuring that the image captured by the camera is clear and complete, and guaranteeing the accurate capture of the details of minor defects, thereby reducing detection errors caused by image blurring from the source. On the other hand, it can avoid the operation of frequently stopping to wipe the lens, significantly improving the continuous operation efficiency of the detection device, while reducing the wear and tear on the lens caused by repeated cleaning, extending the service life of the camera, and reducing the frequency of equipment maintenance and replacement costs.

[0027] 3. This automotive exterior defect detection device and method enable the device to adapt to complex workshop operating environments and stably output high-precision detection results. For automotive manufacturers, it can reduce rework costs and quality disputes caused by misjudgment or omission of exterior defects. For after-sales quality inspection agencies, the improved continuous operation efficiency and reduced maintenance costs of the equipment can further shorten the quality inspection cycle and improve service capabilities. Overall, the device improves detection quality while taking into account economy and practicality, providing reliable technical support for cost reduction and efficiency improvement in the automotive exterior quality inspection industry. Attached Figure Description

[0028] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the regional structure of the second groove in this invention; Figure 3 is a schematic diagram of the regional structure of the first groove in this invention; Figure 4 is a detailed internal structural diagram of the movable groove in this invention; Figure 5 is a schematic diagram of the regional structure of the movable groove in this invention; Figure 6 is an enlarged structural diagram of point A in Figure 5 of the present invention; Figure 7 is a schematic cross-sectional view of the support rod in this invention; Figure 8 is an enlarged structural diagram of point B in Figure 7 of the present invention; Figure 9 is a schematic diagram of the regional structure of the dustproof plate in this invention.

[0029] The markings in the diagram are as follows: 1. Base; 2. Support rod; 3. Slider 1; 4. Slide groove 1; 5. Slider 2; 6. Round rod; 7. Reciprocating lead screw; 8. Drive groove; 9. Drive motor 1; 10. Rectangular groove; 11. Support plate; 12. Movable groove; 13. Top plate; 14. Moving rod; 15. Drive rod; 16. Guide rod; 17. Bidirectional threaded rod; 18. Power slot; 19. Drive motor II; 20. Groove; 21. Camera; 22. Through slot; 23. Dustproof plate; 24. Handle; 25. Magnet I; 26. Magnet II; 27. Connecting rod; 28. Slide II. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0031] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0032] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0033] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0034] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0035] Example 1: Please refer to Figures 1-9. This embodiment provides a device for detecting defects on the exterior surface of an automobile, including: The base 1 has a support rod 2 on its top. The top of the base 1 has a second slide groove 28 and a first slide groove 4. A first slider 3 is slidably installed in the second slide groove 28. The top of the first slider 3 is fixed to one end of the support rod 2. A second slider 5 is slidably installed in the first slide groove 4. The top of the second slider 5 is fixed to the other end of the support rod 2. A round rod 6 is fixedly installed in the first slide groove 4. One end of the round rod 6 passes through the second slider 5. The drive component is located within the slide groove 28 and is used to drive the slider 3 to reciprocate. Four rectangular slots 10 are provided in the base 1 and located between the slide groove 28 and the slide groove 4. A support plate 11 is slidably installed in the rectangular slots 10. Several grooves 20 are provided in the support rod 2. A camera 21 is fixedly installed in the grooves 20. The power assembly is located inside the base 1 and is used to drive the four support plates 11 to move up and down. A plurality of sealing components are located in a plurality of grooves 20 and are used to seal the plurality of grooves 20 respectively.

[0036] In use, personnel can drive the vehicle to be inspected onto the base 1 until the four wheels of the vehicle are on top of the four support plates 11. Then, personnel can use the power unit to drive the four support plates 11 downwards. At this time, the wheels on the four support plates 11 will fall into the four rectangular grooves 10. With the blocking effect of the inner walls of the four rectangular grooves 10, the vehicle to be inspected can be fixed on the base 1, preventing the vehicle from moving during the inspection process and ensuring that the inspection will not be inaccurate due to the vehicle moving at will. After the camera 21 is used, the personnel can seal the groove 20 with the sealing component to ensure that no dust enters the groove 20, thus preventing dust from falling onto the camera 21 and ensuring the clarity of the image captured by the camera 21. During testing, personnel can use the drive assembly to move slider 3 back and forth. This back and forth movement of slider 3 causes support rod 2 to move back and forth, which in turn causes slider 5 to move...

[0037] The support rod 2 moves back and forth within the slot 4, which in turn drives several cameras 21 to move back and forth. The reciprocating movement of these cameras 21 allows for comprehensive defect detection of the vehicle's exterior. Furthermore, the cameras 21 can perform multiple reciprocating inspections to avoid missed detections and ensure accurate inspection results.

[0038] Example 2: This embodiment provides a vehicle exterior surface defect detection device. In addition to the technical solutions of the above embodiments, it also has the following technical features: the drive component includes a reciprocating lead screw 7, which is rotatably installed in a slide groove 28. One end of the reciprocating lead screw 7 passes through a slider 3. A drive groove 8 is provided in the base 1 and on one side of the slide groove 28. A drive motor 9 is fixedly installed in the drive groove 8. The output end of the drive motor 9 passes through one side of the drive groove 8 and is coaxially connected to the reciprocating lead screw 7.

[0039] When the drive motor 9 is started, its output shaft drives the reciprocating screw 7 to rotate. Under the action of the screw thread, the rotation of the reciprocating screw 7 drives the slider 3 to reciprocate. The reciprocating movement of the slider 3 drives the support rod 2 to reciprocate. The reciprocating movement of the support rod 2 drives the slider 5 to reciprocate within the slide groove 4. At the same time, the reciprocating movement of the support rod 2 drives several cameras 21 to reciprocate. The reciprocating movement of several cameras 21 can perform comprehensive defect detection on the vehicle's exterior surface. The multiple cameras 21 can perform multiple inspections to avoid missed detections and ensure accurate detection results.

[0040] Example 3: This embodiment provides a vehicle exterior surface defect detection device. In addition to the technical solution of the above embodiment, it also has the following technical features: the reciprocating screw 7 is threadedly connected to the slider 3, and the output shaft of the drive motor 9 is rotatably connected to the base 1.

[0041] Specifically, it is ensured that the rotation of the reciprocating screw 7 can drive the slider 3 to reciprocate, and that the output shaft of the drive motor 9 can rotate normally within the base 1.

[0042] Example 4: This embodiment provides a vehicle exterior surface defect detection device. In addition to the technical solutions of the above embodiments, it also has the following technical features: the power assembly includes: a movable slot 12, which is located within a base 1 and at the bottom of four rectangular slots 10; a top plate 13 is slidably installed within the movable slot 12; two connecting rods 27 are fixedly installed at the bottom of a support plate 11, with the bottom ends of the connecting rods 27 fixedly connected to the top plate 13; moving rods 14 are symmetrically slidably installed at the bottom of the movable slot 12; two drive rods 15, which rotate with the top plate 13, are rotatably installed on one side of the moving rods 14; two guide rods 16 are fixedly installed within the movable slot 12, with one end of each guide rod 16 passing through the two moving rods 14; a bidirectional threaded rod 17 is rotatably installed within the movable slot 12, with one end of each bidirectional threaded rod 17 passing through the two moving rods 14; a power slot 18 is provided within the base 1 and on one side of the movable slot 12; a second drive motor 19 is fixedly installed within the power slot 18, with the output end of the second drive motor 19 passing through the power slot 18. It is coaxially connected to one side of the double-threaded rod 17.

[0043] When the drive motor 19 is started, its output shaft drives the bidirectional threaded rod 17 to rotate. Under the action of the thread, the rotation of the bidirectional threaded rod 17 causes the two moving rods 14 to move away from each other. The movement of the moving rods 14 causes the bottom ends of the two drive rods 15 to move, thus causing the drive rods 15 to rotate. The four drive rods 15 drive the top plate 13 to move downward. The downward movement of the top plate 13 causes the four support plates 11 to move downward through several connecting rods 27. At this time, the wheels on the four support plates 11 fall into the four rectangular grooves 10. Under the blocking effect of the inner walls of the four rectangular grooves 10, the vehicle to be tested can be fixed on the base 1, preventing the vehicle from moving during the testing process and ensuring that the test will not be inaccurate due to the vehicle moving at will.

[0044] Example 5: This embodiment provides a vehicle exterior surface defect detection device. In addition to the technical solution of the above embodiment, it also has the following technical features: the moving rod 14 is slidably connected to the guide rod 16, the moving rod 14 is threadedly connected to the bidirectional threaded rod 17, the bidirectional threaded rod 17 is provided with two sections of threads with opposite directions of rotation, and the output shaft of the drive motor 19 is rotatably connected to the base 1.

[0045] Specifically, this ensures that the moving rod 14 can slide normally on the guide rod 16, and guarantees the bidirectional threaded rod 17.

[0046] The rotation can cause the two moving rods 14 to move closer or further apart, ensuring that the output shaft of the drive motor 19 can rotate normally within the base 1.

[0047] Example 6: This embodiment provides a vehicle exterior surface defect detection device. In addition to the technical solutions of the above embodiments, it also has the following technical features: the sealing component includes a through groove 22, which is opened on the periphery of the groove 20 and located on one side of the camera 21. A dustproof plate 23 is slidably installed in the through groove 22. A handle 24 is fixedly installed on one side of the dustproof plate 23. A second magnet 26 is fixedly installed on the dustproof plate 23. A first magnet 25 is fixedly installed on the inner wall of the through groove 22 and on one side of the second magnet 26.

[0048] The device allows personnel to pull several handles 24, which in turn move the dust cover 23. At this time, magnet 1 25 and magnet 26 will disengage, allowing personnel to open the dust cover 23 and ensure that the camera 21 can be used normally. After the camera 21 is finished using the device, personnel can close the dust cover 23 again, causing magnet 26 on the dust cover 23 to be attracted to magnet 1 25, thereby fixing the dust cover 23 in place. This ensures that when the camera 21 is not in use, the dust cover 23 can seal the groove 20, preventing dust from entering the groove 20 and avoiding dust falling onto the camera 21, thus ensuring the clarity of the image captured by the camera 21.

[0049] Example 7: This embodiment provides a vehicle exterior surface defect detection device, which, in addition to the technical solution of the above embodiment, also has the following technical features: magnet 1 25 and magnet 2 26 are magnetically connected.

[0050] Specifically, ensure that magnet 25 can be attracted to magnet 26.

[0051] Example 8: This embodiment provides a vehicle exterior surface defect detection device, which, in addition to the technical solution of the above embodiment, also has the following technical features: the slider 5 is slidably connected to the round rod 6.

[0052] Among these measures, it is ensured that slider 2 5 can slide normally on the round rod 6.

[0053] Example 9: This embodiment provides a method for detecting defects on the exterior of an automobile. In addition to the technical solutions described in the above embodiment, it also has the following technical features, including the following method: Step S1: In use, a person can drive the vehicle to be inspected onto the base 1 until the four wheels of the vehicle are respectively located on the top of the four support plates 11. Then, the person can start the drive motor 19. The output shaft of the drive motor 19 will drive the bidirectional threaded rod 17 to rotate. Under the action of the thread, the rotation of the bidirectional threaded rod 17 will cause the two moving rods 14 to move away from each other. The movement of the moving rods 14 will cause the bottom ends of the two drive rods 15 to move, thereby causing the drive rods 15 to rotate. The four drive rods 15 will cause the top plate 13 to move downwards. The downward movement of the top plate 13 will cause the four support plates 11 to move downwards through several connecting rods 27. At this time, the wheels on the four support plates 11 will fall into the four rectangular grooves 10. Under the blocking action of the inner walls of the four rectangular grooves 10, the vehicle to be inspected can be fixed on the base 1. To prevent the vehicle from moving during the inspection process, ensuring that inaccurate inspections are not caused by the vehicle moving at will; Step S2: Personnel can pull several handles 24 respectively. The movement of handles 24 will cause the dust cover 23 to move. At this time, magnet 1 25 and magnet 2 26 will be demagnetized, and personnel can open the dust cover 23 to ensure that the camera 21 can be used normally. Step S3: After the camera 21 is used, the personnel can close the dust cover 23 again, so that the second magnet 26 on the dust cover 23 is attracted to the first magnet 25, thereby fixing the dust cover 23. This ensures that when the camera 21 is not in use, the dust cover 23 can seal the groove 20, preventing dust from entering the groove 20 and preventing dust from falling on the camera 21, thus ensuring the clarity of the image captured by the camera 21. Step S4: During inspection, personnel can start drive motor 9. The output shaft of drive motor 9 will drive reciprocating screw 7 to rotate. Under the action of the screw thread, the rotation of reciprocating screw 7 will drive slider 3 to reciprocate. The reciprocating movement of slider 3 will drive support rod 2 to reciprocate. The reciprocating movement of support rod 2 will drive slider 5 to reciprocate within slide groove 4. At the same time, the reciprocating movement of support rod 2 will drive several cameras 21 to reciprocate. The reciprocating movement of several cameras 21 can monitor the vehicle.

[0054] The appearance is inspected for defects in all aspects, and several cameras 21 can perform repeated inspections to avoid missed detections and ensure accurate inspection results.

[0055] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A device for detecting defects in the exterior surface of automobiles, characterized in that, include: The base (1) has a support rod (2) on its top. The top of the base (1) has a sliding groove two (28) and a sliding groove one (4). A slider one (3) is slidably installed in the sliding groove two (28). The top of the slider one (3) is fixed to one end of the support rod (2). A slider two (5) is slidably installed in the sliding groove one (4). The top of the slider two (5) is fixed to the other end of the support rod (2). A round rod (6) is fixedly installed in the sliding groove one (4). One end of the round rod (6) passes through the slider two (5). A drive assembly located within the second slide (28) and used to drive the first slider (3) to reciprocate; Four rectangular slots (10) are provided in the base (1) and located between the slide groove two (28) and the slide groove one (4). A support plate (11) is slidably installed in the rectangular slots (10). Several grooves (20) are provided in the support rod (2). A camera (21) is fixedly installed in the grooves (20). A power assembly located within the base (1) and used to drive the four support plates (11) to move up and down; A plurality of sealing components are located in a plurality of grooves (20) and are used to seal the plurality of grooves (20).

2. The vehicle exterior surface defect detection device according to claim 1, characterized in that, The driving component includes: A reciprocating lead screw (7) is rotatably installed in a slide groove (28). One end of the reciprocating lead screw (7) passes through a slider (3). A drive groove (8) is provided in the base (1) and on one side of the slide groove (28). A drive motor (9) is fixedly installed in the drive groove (8). The output end of the drive motor (9) passes through one side of the drive groove (8) and is coaxially connected to the reciprocating lead screw (7).

3. The vehicle exterior surface defect detection device according to claim 2, characterized in that, The reciprocating lead screw (7) is threadedly connected to the slider (3), and the output shaft of the drive motor (9) is rotatably connected to the base (1).

4. The vehicle exterior surface defect detection device according to claim 1, characterized in that, The power assembly includes: An active slot (12) is formed inside the base (1) and located at the bottom of four rectangular slots (10). A top plate (13) is slidably installed inside the active slot (12). Two connecting rods (27) are fixedly installed at the bottom of the support plate (11). The bottom ends of the connecting rods (27) are fixedly connected to the top plate (13). A moving rod (14) is symmetrically slidably installed at the bottom of the active slot (12). Two drive rods (15) that rotate with the top plate (13) are rotatably installed on one side of the moving rod (14). Inside the active slot (12) Two guide rods (16) are fixedly installed. One end of the guide rod (16) passes through two moving rods (14). A bidirectional threaded rod (17) is rotatably installed in the movable groove (12). One end of the bidirectional threaded rod (17) passes through two moving rods (14). A power groove (18) is provided in the base (1) and on one side of the movable groove (12). A second drive motor (19) is fixedly installed in the power groove (18). The output end of the second drive motor (19) passes through one side of the power groove (18) and is coaxially connected to the bidirectional threaded rod (17).

5. The vehicle exterior surface defect detection device according to claim 4, characterized in that, The moving rod (14) is slidably connected to the guide rod (16), and the moving rod (14) is threadedly connected to the bidirectional threaded rod (17). The bidirectional threaded rod (17) has two sections of threads with opposite directions of rotation. The output shaft of the second drive motor (19) is rotatably connected to the base (1).

6. The vehicle exterior surface defect detection device according to claim 1, characterized in that, The sealing assembly includes: A through groove (22) is formed on the periphery of the groove (20) and located on one side of the camera (21). A dustproof plate (23) is slidably installed in the through groove (22). A handle (24) is fixedly installed on one side of the dustproof plate (23). A second magnet (26) is fixedly installed on the dustproof plate (23). A first magnet (25) is fixedly installed on the inner wall of the through groove (22) and on one side of the second magnet (26).

7. The vehicle exterior surface defect detection device according to claim 6, characterized in that, The first magnet (25) and the second magnet (26) are magnetically connected.

8. The vehicle exterior surface defect detection device according to claim 1, characterized in that, The second slider (5) is slidably connected to the round rod (6).

9. A method for detecting defects on the exterior of an automobile according to claim 1, used in the automobile exterior defect detection device according to any one of claims 1-8, characterized in that, Including the following methods: Step S1: During use, the personnel can drive the vehicle to be inspected onto the base (1) until the four wheels of the vehicle are respectively located on the top of the four support plates (11). Then, the personnel can start the second drive motor (19). The output shaft of the second drive motor (19) will drive the bidirectional threaded rod (17) to rotate. Under the action of the thread, the rotation of the bidirectional threaded rod (17) will drive the two moving rods (14) to move away from each other. The movement of the moving rods (14) will drive the bottom ends of the two drive rods (15) to move, thereby making the drive rods (15) When rotation occurs, the four drive rods (15) will drive the top plate (13) to move downward. The downward movement of the top plate (13) will drive the four support plates (11) to move downward through several connecting rods (27). At this time, the wheels on the four support plates (11) will fall into the four rectangular slots (10). Under the blocking effect of the inner wall of the four rectangular slots (10), the vehicle to be tested can be fixed on the base (1), so as to avoid the vehicle from moving during the testing process and ensure that the test will not be inaccurate due to the random movement of the vehicle. Step S2: Personnel can pull several handles (24) respectively. The movement of the handles (24) will cause the dust cover (23) to move. At this time, magnet one (25) and magnet two (26) will be released from magnetic attraction. Personnel can open the dust cover (23) to ensure that the camera (21) can be used normally. Step S3: After the camera (21) is finished using, the personnel can close the dust cover (23) again, so that the second magnet (26) on the dust cover (23) is attracted to the first magnet (25), thereby fixing the dust cover (23) and ensuring that the dust cover (23) can seal the groove (20) when the camera (21) is not in use, so that no dust can enter the groove (20) and prevent dust from falling into it. The clarity of the video captured by the camera (21) is ensured. Step S4: During the inspection, the personnel can start the drive motor 1 (9). The output shaft of the drive motor 1 (9) will drive the reciprocating screw (7) to rotate. Under the action of the screw, the rotation of the reciprocating screw (7) will drive the slider 1 (3) to move back and forth. The reciprocating movement of the slider 1 (3) will drive the support rod (2) to move back and forth. The reciprocating movement of the support rod (2) will drive the slider 2 (5) to move back and forth in the slide groove 1 (4). At the same time, the reciprocating movement of the support rod (2) will drive several cameras (21) to move back and forth. The reciprocating movement of several cameras (21) can perform all-round defect detection on the exterior surface of the vehicle. Several cameras (21) can perform multiple reciprocating inspections to avoid missed detections and ensure that the inspection effect is accurate.

Images