Visual inspection tool for roof trim

Abstract

The utility model provides a kind of top cover moulding strip visual inspection tool, belong to automobile accessory detection technical field.The utility model is equipped with horizontal moving component and longitudinal moving component by supporting frame on the detection plate of work station, simultaneously, visual camera is installed on longitudinal moving component, and, detection station is arranged on the detection plate and below the shooting head of visual camera, so that after the top cover moulding strip to be detected is placed on detection station, visual camera can be driven by horizontal moving component and longitudinal moving component to scan and shoot top cover moulding strip to be detected to judge whether the top cover moulding strip is qualified, without artificial judgment, same detection standard, reduce the risk of missed detection and misdiagnosis, higher detection accuracy, simultaneously, standard image used by visual contrast can also be replaced to adapt to the detection of different models of top cover moulding strip, improve adaptability, avoid the high cost problem caused by the need for targeted development of different models of detection mould.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts testing technology, specifically to a visual inspection tool for roof trim strips. Background Technology

[0002] As people's travel needs increase, the requirements for car loading space are getting higher and higher. In particular, some users who have outdoor travel needs need not only the regular trunk and other storage space, but also additional roof boxes. Therefore, many existing vehicles have roof racks pre-installed to accommodate the installation needs of roof boxes that will be added later.

[0003] Because some vehicles have pre-installed roof racks, but the roof box wasn't installed at the factory, manufacturers typically install removable roof trim strips to conceal the roof rack, improving the overall appearance and making the vehicle more aesthetically pleasing. When the user wants to install a roof box later, the roof trim strip can be removed to expose the roof rack, and the roof box can be installed onto it. Therefore, roof trim strips are still widely used on vehicles. Furthermore, since vehicle roofs are usually multi-directionally curved, the roof trim strips are also multi-directionally curved. Additionally, to ensure a perfect fit after installation, the shape and dimensions of the roof trim strip must meet design requirements, necessitating product testing before leaving the factory. Currently, the inspection method for roof cover trim strips involves manually placing the strip into a testing mold and visually inspecting the spacing between the strip's various faces and edges and the mold to determine if it meets design requirements. While this method can inspect roof cover trim strips, it relies on visual observation, leading to inconsistent inspection standards, significant subjective influence, and a substantial risk of missed or false detections. Furthermore, different models of roof cover trim strips require specially designed testing molds, resulting in poor compatibility and increased inspection costs. Summary of the Invention

[0004] In view of the above problems existing in the prior art, the present invention aims to provide a visual inspection tool for a roof trim strip. A cross-moving component is arranged on a workbench, and a longitudinal moving component is arranged on the cross-moving component. At the same time, a vision camera is installed on the longitudinal moving component, so that the vision camera can move to any position within the horizontal plane to meet the use requirements for scanning the roof trim strip to be detected. In addition, a detection jig is provided. A side abutting portion and an end abutting portion are respectively arranged on one side and one end of the detection jig. The detection jig is used to support the roof trim strip to be detected and position it through the side abutting portion and the end abutting portion, maintaining the accuracy of the position of the roof trim strip to be detected, ensuring that the vision camera can take qualified photos and then perform vision analysis to judge whether the roof trim strip is qualified, eliminating the need for manual subjective judgment, unifying the detection standard, reducing the risks of missed inspection and misjudgment, and being able to adapt to the detection requirements of roof trim strips of any model, with better adaptability and lower detection costs.

[0005] The specific technical solutions are as follows:

[0006] A visual inspection tool for a roof trim strip, having the following characteristics, including:

[0007] A workbench, which includes a detection board and a support frame. The detection board is horizontally arranged, and the middle area of the detection board is the detection station. The support frame is installed on the detection board;

[0008] A cross-moving component, which is arranged on the support frame and reciprocates in a direction within the horizontal plane;

[0009] A longitudinal moving component, which is installed on the cross-moving component and reciprocates in another direction within the horizontal plane. Moreover, the moving direction of the longitudinal moving component is perpendicular to the moving direction of the cross-moving component;

[0010] A vision camera, which is installed on the longitudinal moving component, and the shooting head of the vision camera is arranged facing the detection station;

[0011] A controller, which is arranged on the workbench and below the detection board, and the vision camera is electrically connected to the controller.

[0012] In the above visual inspection tool for a roof trim strip, a chassis is arranged at the bottom of the detection board. The chassis is placed on the ground, and the controller is installed inside the chassis.

[0013] In the above visual inspection tool for a roof trim strip, a plurality of moving wheels are arranged at the bottom of the chassis.

[0014] The aforementioned visual inspection fixture for top cover trim includes an inspection station comprising an inspection jig, which includes a stand, a support platform, a side abutment, and an end abutment. The support platform is positioned above the inspection plate and below the camera head of the visual camera. The upper and lower ends of the stand are fixedly connected to the support platform and the inspection plate, respectively. Furthermore, a protruding side abutment is provided on one side of the support platform, and a protruding end abutment is provided at one end of the support platform.

[0015] The aforementioned visual inspection fixture for top cover trim includes three support blocks on the top surface of a support platform. The three support blocks protrude from the top surface of the support platform and are respectively located at both ends and the center of the support platform.

[0016] The aforementioned visual inspection tool for top cover trim includes two side abutments, with the two side abutments located at both ends of the support platform, and one end abutment located at the middle of one end of the support platform.

[0017] The aforementioned visual inspection tool for top cover trim includes a protruding positioning block on each support block, side abutment, and end abutment. Simultaneously, positioning holes corresponding to the positioning blocks are provided on the top, side, and end surfaces of the support platform.

[0018] In the aforementioned visual inspection tool for top cover trim, each support block, side abutment, and end abutment is detachably connected to the support platform.

[0019] The aforementioned visual inspection fixture for top cover trim, wherein the visual camera is a 3D camera.

[0020] In the aforementioned visual inspection fixture for top cover trim, both the transverse and longitudinal movement components are electrically driven linear guides.

[0021] The positive effects of the above technical solution are:

[0022] The aforementioned visual inspection fixture for top cover trim strips utilizes a support frame mounted on an inspection plate with an inspection station. A transverse moving component is mounted on the support frame, and a longitudinal moving component is mounted on the transverse moving component. Both the transverse and longitudinal moving components reciprocate in different directions within the horizontal plane, and their directions of movement are perpendicular to each other. A vision camera is mounted on the longitudinal moving component. When the top cover trim strip to be inspected is placed on the inspection station, the vision camera can be moved to any position within the horizontal plane via the transverse and longitudinal moving components. This allows for scanning and photographing of the top cover trim strip in both its length and width directions, meeting the requirement for omnidirectional scanning and photographing of the product. This visually determines whether the top cover trim strip meets design requirements, standardizes the inspection process, avoids the problems of missed or false inspections caused by subjective human judgment, and ensures inspection accuracy. Furthermore, the fixture can be adapted to inspect different models of top cover trim strips by replacing the visual comparison images during subsequent inspections, offering better adaptability and eliminating the need for additional, targeted inspection molds, thus reducing adaptation costs. Attached Figure Description

[0023] Figure 1 This is a structural diagram of an embodiment of a visual inspection tool for a top cover trim of the present invention;

[0024] Figure 2 This is a schematic diagram of the installation of the transverse and longitudinal movement components of a visual inspection tool for a top cover trim strip according to this utility model;

[0025] Figure 3 This is a structural diagram of a visual inspection fixture for a top cover trim strip according to the present invention.

[0026] In the attached diagram: 1. Workstation; 11. Inspection plate; 12. Support frame; 111. Base frame; 112. Casters; 2. Horizontal movement assembly; 3. Vertical movement assembly; 4. Vision camera; 5. Controller; 6. Inspection fixture; 61. Stand; 62. Support platform; 63. Side abutment; 64. End abutment; 65. Support block. Detailed Implementation

[0027] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following embodiments are provided in conjunction with the appendix. Figure 1 To be continued Figure 3 The technical solution provided by this utility model is described in detail, but the following content is not intended to limit this utility model.

[0028] Figure 1 This is a structural diagram of an embodiment of a visual inspection tool for a top cover trim according to this utility model. Figure 1 As shown, the visual inspection fixture for the top cover trim provided in this embodiment includes: a workstation 1, a transverse movement assembly 2, a longitudinal movement assembly 3, a visual camera 4, and a controller 5.

[0029] Specifically, the workstation 1 includes a testing plate 11 and a support frame 12. The testing plate 11 is horizontally arranged, and the middle area of ​​the testing plate 11 is the testing station, providing a carrier for the placement of the top cover trim to be tested, ensuring that the top cover trim can remain stable during subsequent testing. In addition, the support frame 12 is installed on the testing plate 11. Preferably, the bottom of the support frame 12 is fixed to the outer periphery of the testing plate 11. While satisfying the installation of the support frame 12, it also maintains a distance between the support frame 12 and the testing station located in the middle area of ​​the testing plate 11, which facilitates the loading and unloading of the top cover trim to be tested at the testing station, and also avoids interference with the top cover trim during testing. The structural design is more reasonable.

[0030] Figure 2 This is a schematic diagram illustrating the installation of the transverse and longitudinal movement components of a visual inspection fixture for a top cover trim according to this utility model. Figure 1 and Figure 2 As shown, the transverse component 2 is mounted on the support frame 12 and moves back and forth in one direction in the horizontal plane, providing conditions for subsequent scanning and imaging of the width direction of the top cover trim to be inspected.

[0031] Simultaneously, the longitudinal moving component 3 is installed on the transverse moving component 2, so that the longitudinal moving component 3 can follow the transverse moving component 2. At the same time, the longitudinal moving component 3 reciprocates in another direction in the horizontal plane, and the direction of movement of the longitudinal moving component 3 is perpendicular to the direction of movement of the transverse moving component 2. Thus, the longitudinal moving component 3 can not only follow the transverse moving component 2 in the horizontal plane, but also move on its own in the horizontal plane in a direction perpendicular to the direction of movement of the transverse moving component 2. This provides the conditions for subsequent scanning and shooting of the length direction of the top cover trim strip to be inspected. With the cooperation of the transverse moving component 2 and the longitudinal moving component 3, the subsequent shooting requirements at any position in the horizontal plane are met.

[0032] More specifically, the vision camera 4 is mounted on the longitudinal shift assembly 3, so that the vision camera 4 can move to any position in the horizontal plane under the combined action of the transverse shift assembly 2 and the longitudinal shift assembly 3. Furthermore, the imaging head of the vision camera 4 is arranged facing the inspection station, thereby realizing scanning and imaging in the length and width directions of the top cover trim to be inspected, and meeting the visual inspection requirements of the top cover trim.

[0033] More specifically, the controller 5 is positioned on the workstation 1 and below the inspection plate 11, avoiding obstruction of the space above the inspection plate 11. Furthermore, the vision camera 4 is electrically connected to the controller 5, allowing the images captured by the vision camera 4 to be transmitted to the controller 5 and compared with pre-stored images of qualified products. If the comparison error is satisfied, the top cover trim to be inspected is determined to be a qualified product; otherwise, it is determined to be a defective product. It is worth noting that in visual inspection technology, the method of comparing product images captured by the vision camera 4 with pre-stored images to determine product qualification is a very common and widely used approach. For example, patent CN 118190953B discloses a mobile visual inspection method, system, and storage medium that details a technical solution for visual inspection of products by analyzing real-time visual inspection data based on a visual inspection reference database to identify product appearance defects. Therefore, the specific structure and principles of the visual inspection technology used in this embodiment will not be elaborated further.

[0034] More specifically, a base frame 111 is also provided at the bottom of the detection plate 11, and the base frame 111 is placed on the ground. The base frame 111 raises the height of the detection plate 11, allowing operators to perform loading and unloading operations on the detection station of the detection plate 11 without bending over, making operation more convenient. Furthermore, the controller 5 is installed inside the base frame 111, that is, the base frame 111 forms an installation space at the bottom of the detection plate 11, providing installation space for structural components such as the controller 5, realizing the concealed installation of the controller 5, which is more aesthetically pleasing and reasonable.

[0035] More specifically, a number of casters 112 are provided at the bottom of the base frame 111. Preferably, the casters 112 are lockable casters, which facilitate the movement of the entire fixture when unlocked, enabling the transfer of the fixture. During the inspection process, the stability of the entire fixture can be maintained by locking the casters. It is worth noting that since there are many types of lockable casters on the market, this embodiment only requires the purchase and installation of a suitable lockable caster. Therefore, the specific structure of the lockable caster will not be described in detail here.

[0036] Figure 3 This is a structural diagram of a testing fixture for a visual inspection tool for a top cover trim according to this utility model. Figure 1 and Figure 3As shown, the inspection station on the inspection plate 11 includes an inspection fixture 6. The inspection fixture 6 includes a stand 61, a support platform 62, a side abutment 63, and an end abutment 64. The support platform 62 is positioned above the inspection plate 11 and below the camera head of the vision camera 4, providing a carrier for the subsequent placement of the top cover trim to be inspected. Furthermore, several stands 61 are positioned between the inspection plate 11 and the support platform 62, with the upper and lower ends of each stand 61 fixedly connected to the support platform 62 and the inspection plate 11 respectively, maintaining the stability of the support platform 62. Furthermore, a protruding side abutment 63 is provided on one side of the support platform 62, and a protruding end abutment 64 is provided at one end of the support platform 62. This allows the top cover trim to be tested to be placed on the support platform 62, with the side abutment 63 and the end abutment 64 respectively providing limiting abutment to one side and one end of the top cover trim to be tested. This serves as a positioning support for the top cover trim to be tested, ensuring that the position of the top cover trim to be tested on the support platform 62 is more accurate. This, in turn, ensures that the subsequent photographs of the top cover trim taken by the vision camera 4 are more accurate, thus guaranteeing the accuracy of the testing structure.

[0037] More specifically, three support blocks 65 are provided on the top surface of the support platform 62, and the three support blocks 65 protrude from the top surface of the support platform 62. At the same time, the three support blocks 65 are respectively located at both ends and the center of the support platform 62, that is, the three support blocks 65 correspond to both ends and the middle of the top cover trim strip to be tested, respectively, to achieve three-point support for the top cover trim strip to be tested. While ensuring stable support for the top cover trim strip to be tested, this reduces the problem of excessive contact between the top surface of the support platform 62 and the surface of the top cover trim strip to be tested, which may interfere with the test, thus ensuring the accuracy of the test. It also reduces the amount of processing required for the contact surface of the top cover trim strip to be tested, making it easier to process.

[0038] More specifically, two side abutment parts 63 are provided on one side of the support platform 62, and the two side abutment parts 63 are located at both ends of the support platform 62 respectively. This fully utilizes the principle of two-point positioning along a line to ensure stable and accurate positioning of one side of the top cover trim to be inspected, guaranteeing a more accurate lateral position of the top cover trim to be inspected. In addition, one end abutment part 64 is provided at one end of the support platform 62, and the end abutment part 64 is located in the middle of one end of the support platform 62. In this case, the end abutment part 64 can be misaligned with the two side abutment parts 63, positioning the side and end of the top cover trim to be inspected from two different directions. This achieves accurate positioning of the top cover trim to be inspected with fewer positioning structures, reducing the risk of positioning interference, reducing processing workload, and facilitating processing.

[0039] More specifically, each support block 65, side abutment part 63, and end abutment part 64 is provided with a protruding positioning block. At the same time, positioning holes corresponding to the positioning blocks are opened on the top surface, side surface, and end surface of the support platform 62. This allows the positioning blocks to be embedded into the positioning holes when the support block 65, side abutment part 63, and end abutment part 64 are installed on the support platform 62, ensuring the accuracy of the installation position and direction of the support block 65, side abutment part 63, and end abutment part 64, resulting in a more reasonable structural design.

[0040] More specifically, each support block 65, side abutment part 63, and end abutment part 64 is detachably connected to the support platform 62, so that when inspecting different models of top cover trim strips, only the support block 65, side abutment part 63, and end abutment part 64 need to be replaced, without the need to replace the entire inspection station. The structure is more flexible, has better adaptability, reduces the amount of adaptation processing, and lowers adaptation costs. Preferably, each support block 65, side abutment part 63, and end abutment part 64 is connected to the support platform 62 by screws. In this case, threaded connection holes are respectively opened on the top surface, side surface, and end surface of the support platform 62. At the same time, each support block 65, side abutment part 63, and end abutment part 64 is provided with mating holes, so that when the support block 65, side abutment part 63, and end abutment part 64 are installed on the support platform 62, the screws can be threaded through the mating holes and connected to the corresponding threaded connection holes, thereby realizing the disassembly and installation of the support block 65, side abutment part 63, and end abutment part 64. It is worth noting that all the mating holes are countersunk holes, which allows the screw heads to be hidden when the support block 65, the side abutment part 63 and the end abutment part 64 are installed on the threaded connection holes of the support platform 62 by screws. This maintains the flatness of the surfaces of the support block 65, the side abutment part 63 and the end abutment part 64, and allows for more accurate positioning of the top cover trim strip to be tested. The structural design is more reasonable.

[0041] More specifically, the vision camera 4 used to scan and photograph the top cover trim strip to be inspected is a 3D camera. When scanning and photographing the top cover trim strip to be inspected, it can scan and photograph the side of the top cover trim strip to be inspected, which can meet the inspection requirements of the side curvature of the top cover trim strip to be inspected and improve the accuracy of product inspection.

[0042] More specifically, both the transverse and longitudinal movement components 2 and 3 are electrically driven linear guides, enabling electric drive and more convenient control. Furthermore, the electric linear guides offer fast response and smooth operation, better meeting the scanning and shooting requirements of the vision camera 4 and ensuring more accurate images. They can also be purchased directly from the market and installed without additional development, resulting in lower costs. It is worth noting that since many two-axis electric drive devices exist on the market, all capable of moving in two directions within a single plane using two electric linear guides, this is a commonly used drive structure in automation equipment. The technology is mature, widely applied, and falls within the scope of existing technology; therefore, its specific structure and operating principle will not be elaborated upon here.

[0043] The visual inspection fixture for top cover trim provided in this embodiment includes a workstation 1, a transverse moving component 2, a longitudinal moving component 3, a vision camera 4, and a controller 5. The transverse moving component 2 is mounted on the inspection plate 11 of the workstation 1 via a support frame 12, and the longitudinal moving component 3 is mounted on the transverse moving component 2. Simultaneously, the vision camera 4, electrically connected to the controller 5, is mounted on the longitudinal moving component 3. An inspection station is provided on the inspection plate 11, below the camera head of the vision camera 4. This allows the vision camera 4 to be moved to any position in the horizontal plane by the combined movement of the transverse moving component 2 and the longitudinal moving component 3 after the top cover trim to be inspected is placed on the inspection station. This enables scanning and imaging of the top cover trim to determine its qualification, eliminating the need for manual judgment, unifying the inspection standard, reducing the risk of missed or false inspections, and improving inspection accuracy. Furthermore, by replacing the standard image used for visual comparison, it can be adapted to the inspection of different models of top cover trim, improving adaptability and avoiding the high cost problem caused by the need to develop inspection molds for different models.

[0044] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A visual inspection tool for top cover trim strips, characterized in that, include: A workstation, comprising a testing plate and a support frame, wherein the testing plate is arranged horizontally, the middle area of ​​the testing plate is a testing station, and the support frame is mounted on the testing plate; A transverse moving component, which is disposed on the support frame and reciprocates in one direction within the horizontal plane; A longitudinal traverse assembly is mounted on the transverse traverse assembly. The longitudinal traverse assembly reciprocates in another direction within the horizontal plane, and the direction of movement of the longitudinal traverse assembly is perpendicular to the direction of movement of the transverse traverse assembly. A vision camera is mounted on the longitudinal movement assembly, with the camera head facing the inspection station. A controller is disposed on the workstation and located below the detection plate, and the vision camera is electrically connected to the controller.

2. The visual inspection tool for the top cover trim according to claim 1, characterized in that, The bottom of the detection plate is provided with a base frame, which is placed on the ground, and the controller is installed inside the base frame.

3. The visual inspection tool for the top cover trim according to claim 2, characterized in that, The bottom of the base frame is equipped with several casters.

4. The visual inspection tool for the top cover trim according to claim 1, characterized in that, The testing station includes a testing fixture, which includes a stand, a support platform, a side abutment, and an end abutment. The support platform is positioned above the testing plate and below the camera head of the vision camera. The upper and lower ends of the stand are fixedly connected to the support platform and the testing plate, respectively. Furthermore, a protruding side abutment is provided on one side of the support platform, and a protruding end abutment is provided at one end of the support platform.

5. The visual inspection tool for the top cover trim according to claim 4, characterized in that, Three support blocks are provided on the top surface of the support platform. The three support blocks protrude from the top surface of the support platform and are respectively located at both ends and the center of the support platform.

6. The visual inspection tool for the top cover trim according to claim 4, characterized in that, Two side abutments are provided, and the two side abutments are respectively located at both ends of the support platform. One end abutment is provided, and the end abutment is located at the middle of one end of the support platform.

7. The visual inspection tool for the top cover trim according to claim 5, characterized in that, Each of the support blocks, the side abutment parts, and the end abutment parts is provided with a protruding positioning block. At the same time, positioning holes corresponding to the positioning blocks are opened on the top surface, side surface, and end surface of the support platform.

8. The visual inspection tool for the top cover trim according to claim 5, characterized in that, Each of the aforementioned support blocks, side abutments, and end abutments is detachably connected to the support platform.

9. The visual inspection tool for the top cover trim according to claim 1, characterized in that, The visual camera is a 3D camera.

10. The visual inspection tool for the top cover trim according to claim 1, characterized in that, Both the lateral movement component and the longitudinal movement component are electrically driven linear guides.

Images