Automobile Glass Size Detection Device

By using light source components, calibration components and data processing modules in the automotive glass size detection device, the problem of low detection accuracy caused by position shift during glass movement is solved, and higher imaging accuracy and dimensional detection accuracy are achieved.

CN115342729BActive Publication Date: 2025-07-11HUNAN KELUODE TECH CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202211032596.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-08-26
Publication Date
2025-07-11
Estimated Expiration
2042-08-26

AI Technical Summary

Technical Problem

In the prior art, automotive glass size detection has a problem with low accuracy, especially when position shifting during glass movement, resulting in poor imaging accuracy.

Method used

The automotive glass size detection device is adopted that includes a detection platform, a light source component, a calibration component, an imaging component and a data processing module. The light ray is projected through the light source component, the calibration component forms a stripe pattern, the imaging component acquires images, and the data processing module calculates position errors and corrects the image to obtain accurate appearance dimensions.

Benefits of technology

It improves the imaging accuracy of automotive glass size detection, reduces size detection errors, and makes the detection more accurate.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN115342729B_ABST
    Figure CN115342729B_ABST
Patent Text Reader

Abstract

The present invention discloses an automobile glass size detection device, which includes a detection platform, a light source assembly, a calibration assembly, an imaging assembly and a data processing module; the detection platform is used for placing the automobile glass and can move relative to the imaging assembly to pass through the image acquisition area of the imaging assembly; the light source assembly is used for projecting uniform light rays or stripe light rays onto the automobile glass; the calibration assembly is arranged on the detection platform and the calibration assembly forms a stripe pattern; the imaging assembly is used for collecting the uniform light image and the stripe image of the automobile glass as well as the stripe pattern of the calibration assembly, and sending them to the data processing module; the data processing module is used for calculating the detection position error data of the automobile glass according to the stripe image and the stripe pattern, correcting the uniform light image according to the detection position error data to obtain a corrected image, and then calculating the outer dimension of the automobile glass according to the corrected image. The detection device of the present invention can improve the imaging accuracy, reduce the detection error, and make the size detection of the automobile glass more accurate.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to the field of automotive glass detection, and particularly to an automotive glass size detection device. Background Art

[0002] During the production process of automotive glass, defects such as inaccurate glass size may occur, and it is necessary to perform inspections before leaving the factory.

[0003] Currently, the size of automotive glass is usually measured by traditional camera shooting. When the glass is moving for detection, it is prone to position deviation, which affects the imaging accuracy and thus results in low detection accuracy. Summary of the Invention

[0004] The main object of the present invention is to propose an automotive glass size detection device, aiming to solve the problem of low detection accuracy of current automotive glass size detection.

[0005] To achieve the above object, the present invention proposes an automotive glass size detection device, including a detection platform, a light source assembly, a calibration assembly, an imaging assembly, and a data processing module; wherein,

[0006] The detection platform is used to place the automotive glass and can move relative to the imaging assembly to pass through the image acquisition area of the imaging assembly;

[0007] The light source assembly is used to project uniform light or stripe light onto the automotive glass;

[0008] The calibration assembly is arranged on the detection platform and the calibration assembly forms a stripe pattern;

[0009] The imaging assembly is used to collect the uniform light image and stripe image of the automotive glass and the stripe pattern of the calibration assembly, and send them to the data processing module;

[0010] The data processing module is used to calculate the detection position error data of the automotive glass according to the stripe image of the automotive glass and the stripe pattern of the calibration assembly, correct the uniform light image on the surface of the automotive glass according to the detection position error data to obtain a corrected image, and then calculate the outer dimensions of the automotive glass according to the corrected image.

[0011] In some embodiments, the detection platform includes:

[0012] A support frame, provided with a glass placement position for placing the automotive glass, and the calibration assembly is located on the support frame;

[0013] A driving mechanism, connected to the support frame, for driving the support frame to move.

[0014] In some embodiments, the calibration assembly includes:

[0015] The first calibration scale and the second calibration scale are respectively arranged on the first side and the second side opposite to the glass placement position, and the stripe patterns are formed on the first calibration scale and the second calibration scale.

[0016] In some embodiments, the calibration assembly further includes:

[0017] A third calibration scale, which is arranged on the third side adjacent to the first side and the second side of the glass placement position, and the stripe patterns are formed on the third calibration scale.

[0018] In some embodiments, the placement height of the automotive glass is consistent with the heights of the first calibration scale, the second calibration scale and the third calibration scale.

[0019] In some embodiments, it further includes:

[0020] A conveying assembly, which is located above the support frame and is used for conveying automotive glass. The conveying assembly includes a conveying frame, a driving member and a plurality of conveying rollers arranged at intervals on the conveying frame, and the driving member is used for driving the plurality of conveying rollers to rotate;

[0021] Wherein, the support frame can be moved under the drive of the drive mechanism to lift the automotive glass on the conveying assembly, and drive the automotive glass and the calibration assembly to move along the axial direction of the conveying roller to pass through the image acquisition area of the imaging assembly.

[0022] In some embodiments, a plurality of support assemblies are arranged on the support frame. The plurality of support assemblies are located at the glass placement position and are arranged in sequence along the conveying direction of the conveying assembly. The plurality of support assemblies are used to move out from between the conveying rollers to support the automotive glass along with the movement of the support frame;

[0023] The support assembly includes a plurality of support members, and the plurality of support members are arranged in sequence along the axial direction of the conveying roller.

[0024] In some embodiments, the support member includes a support rod and a suction cup. One end of the support rod is connected to the support frame, and the suction cup is arranged at the other end of the support rod for sucking the automotive glass.

[0025] In some embodiments, an induction assembly is arranged on one side of the conveying assembly, and the induction assembly is used for inducing the automotive glass conveyed on the conveying assembly.

[0026] In some embodiments, the light source assembly includes:

[0027] A reflector, which is located below the imaging assembly;

[0028] Two light sources are arranged on one side of the reflector, and are used for horizontally emitting light towards the reflector and reflecting the light to the vehicle glass through the reflector;

[0029] Wherein, when one of the two light sources emits light, the imaging component collects the stripe image of the vehicle glass; when both of the two light sources emit light, the imaging component collects the uniform light image of the vehicle glass.

[0030] For the vehicle glass size detection device of the technical solution of the present invention, the vehicle glass is placed on the detection platform, and the detection platform moves relative to the imaging component to drive the vehicle glass and the calibration component to pass through the image acquisition area of the imaging component. Then, the imaging component collects the uniform light image and stripe image of the vehicle glass and the stripe pattern of the calibration component and sends them to the data processing module. The data processing module calculates the detection position error data of the vehicle glass according to the stripe image of the vehicle glass and the stripe pattern of the calibration component, corrects the uniform light image on the surface of the vehicle glass according to the detection position error data to obtain a corrected image, and then calculates the outer shape size of the vehicle glass according to the corrected image, thereby improving the imaging accuracy, reducing the size detection error, and making the vehicle glass size detection more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic structural diagram of a vehicle glass size detection device in an embodiment of the present invention;

[0032] Figure 2 It is Figure 1 a schematic structural diagram of the light source component of the vehicle glass size detection device in the embodiment;

[0033] Figure 3 It is Figure 1 a schematic structural diagram of the detection platform, calibration component and transmission component of the vehicle glass size detection device in the embodiment;

[0034] Figure 4 It is a schematic structural diagram of the detection platform and transmission component in an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] Next, the solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0036] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the attached drawings). If this specific posture changes, the directional indications will also change accordingly.

[0037] It should also be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0038] In addition, the descriptions involving "first", "second", etc. in the present invention are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0039] The present invention provides an automobile glass size detection device, as Figures 1 to 3 shown. The automobile glass size detection device includes a detection platform, a light source assembly 10, a calibration assembly 20, an imaging assembly 30, and a data processing module. Among them,

[0040] The detection platform is used to place the automobile glass 1 and can move relative to the imaging assembly 30 to pass through the image acquisition area of the imaging assembly 30.

[0041] The light source assembly 10 is used to project uniform light or stripe light onto the automobile glass 1.

[0042] The calibration assembly 20 is disposed on the detection platform and the calibration assembly 20 forms a stripe pattern.

[0043] The imaging assembly 30 is used to collect the uniform light image and stripe image of the automobile glass 1 and the stripe pattern of the calibration assembly 20, and send them to the data processing module.

[0044] The data processing module is used to calculate the detection position error data of the automobile glass 1 according to the stripe image of the automobile glass 1 and the stripe pattern of the calibration assembly 20, correct the uniform light image on the surface of the automobile glass 1 according to the detection position error data to obtain a corrected image, and then calculate the external dimensions of the automobile glass 1 according to the corrected image.

[0045] In this embodiment, the detection platform is arranged on the opposite side of the imaging component 30. After the detection platform carries the automotive glass 1 and the calibration component 20 through the image acquisition area of the imaging component 30, image acquisition is then performed through the imaging component.

[0046] The light source component 10 is provided with a coaxial light source. The coaxial light source provides more uniform illumination than traditional light sources, and at the same time avoids the reflection of the automotive glass 1, thereby improving the visual accuracy and reproducibility of the imaging component 30, being able to highlight the unevenness on the surface of the automotive glass 1 and overcoming the interference caused by the reflection on the surface of the automotive glass 1.

[0047] The calibration component 20 is arranged on the detection platform and passes through the image acquisition area of the imaging component 30 simultaneously with the automotive glass 1 to be imaged by the imaging component 30. The calibration component 20 uses incompletely uniform stripes with special meanings. The data processing module obtains the position state of the current stripes of the automotive glass 1 through the width and spacing of the stripes of the calibration component 20, and then calculates the detection position error data of the automotive glass 1.

[0048] The imaging component 30 uses a high-speed line array camera plus a high-definition lens. The high-definition lens is selected to ensure the full utilization of the pixel size of the line array camera and collect the best images to achieve highly complex detection. A line array camera is a camera that uses a line array image sensor. The line array camera scans the projected image row by row to uniformly detect the entire surface of the automotive glass 1. When the line array camera collects a row of pixels, only one light is required, and the acquisition speed is fast. During detection, the line array camera simultaneously collects the uniform light image and the stripe image of the automotive glass 1 and the stripe pattern of the calibration component 20.

[0049] There is a communication connection between the imaging component 30 and the data processing module. After the imaging component 30 acquires the image of the automotive glass 1 and the stripe pattern of the calibration component 20, it sends them to the data processing module. The data processing module can determine the conversion relationship between the physical size and pixels based on the stripe pattern of the calibration component 20, and determine the mutual relationship between the three-dimensional geometric position of a certain point on the surface of the automotive glass 1 and its corresponding point in the image.

[0050] The data processing module may include a data control platform and a high-performance data server. The data control platform is used to control the light source component 10 to emit stripe light or uniform light, so that the line array camera can simultaneously collect the stripe image, the uniform light image of the automotive glass 1 and the stripe pattern of the calibration component 20. The data processing server is used to calculate the detection position error data of the automotive glass 1 based on the stripe image of the automotive glass 1 and the stripe pattern of the calibration component 20, correct the uniform light image on the surface of the automotive glass 1 according to the detection position error data to obtain a corrected image, and then calculate the external dimensions of the automotive glass 1 based on the corrected image.

[0051] Further, first, all the automotive glass size diagrams are entered according to the automotive glass information and then stored in the drawing library of the data processing module for comparison with the size of the automotive glass 1 to be detected. The calculated size of the automotive glass 1 is compared with the automotive glass size diagrams in the drawing library to determine whether there are differences. If there are no differences, the size is normal and it is judged as a qualified product; if there are differences, the size abnormal area will be detected, the grade will be further determined, and then the actuator will process the automotive glass 1 of different grades, and those skilled in the art can process it according to the actual situation.

[0052] This detection device can also be provided with a water cooling system. The water cooling system may specifically include a water-cooled air conditioner and a circulating water path. When the light source assembly 10, the imaging assembly 30, and the data processing module are working, a large amount of heat is inevitably generated synchronously. And the internal precision components are sensitive to temperature. After reaching the critical value, even if the temperature only rises by one degree, it may cause imaging blurring, reduced efficiency, etc. Through the water-cooled air conditioner and the circulating water path of the water cooling system, the heat generated by the internal precision components of the light source assembly 10, the imaging assembly 30, and the data processing module can be transferred to the outside for heat dissipation, so as to reduce the temperature of the core area, that is, the temperature is more balanced, ensuring efficient operation.

[0053] In the automotive glass size detection device of the technical solution of the present invention, an automotive glass is placed on the detection platform. The detection platform moves relative to the imaging assembly 30 to drive the automotive glass 1 and the calibration assembly 20 to pass through the image acquisition area of the imaging assembly 30. Then, the imaging assembly 30 acquires the uniform light image and the fringe image of the automotive glass 1 and the fringe pattern of the calibration assembly 20 and sends them to the data processing module. The data processing module calculates the detection position error data of the automotive glass 1 according to the fringe image of the automotive glass 1 and the fringe pattern of the calibration assembly 20, corrects the uniform light image on the surface of the automotive glass 1 according to the detection position error data to obtain a corrected image, and then calculates the outer shape size of the automotive glass 1 according to the corrected image, thereby improving the imaging accuracy, reducing the size detection error, and making the automotive glass size detection more accurate.

[0054] In some embodiments, such as Figure 3 and Figure 4 shown, the detection platform includes:

[0055] A support frame 41, provided with a glass placement position for placing the automotive glass 1, and the calibration assembly 20 is located on the support frame 41;

[0056] A driving mechanism, connected to the support frame 41, for driving the support frame 41 to move.

[0057] In this embodiment, the detection platform includes a support frame 41 and a driving mechanism. The support frame 41 is provided with a glass placement position for placing the automotive glass 1. The calibration assembly 20 is also on the support frame 41, but it should be placed outside the range of the glass placement position to avoid being affected by the automotive glass 1. The driving mechanism uses a YZ-axis module, which is connected to the support frame and drives the support frame to rise and horizontally move to the image acquisition area.

[0058] In some embodiments, as Figure 3 shown, the calibration assembly 20 includes:

[0059] A first calibration scale 21 and a second calibration scale 22, which are respectively arranged on the first side and the second side opposite to the glass placement position, and stripe patterns are formed on the first calibration scale 21 and the second calibration scale 22.

[0060] In this embodiment, the first calibration scale 21 and the second calibration scale 22 are arranged relative to the glass placement position, and stripe patterns are formed on the first calibration scale 21 and the second calibration scale 22. The stripe patterns are composed of stripes with special widths. Taking any stripe position, the actual distance position of this position relative to the starting point can be calculated through the data processing module. When the stripe images of the first calibration scale 21 and the second calibration scale 22 collected by the line array camera show stripe deformation or inconsistent distances, the data processing module will correct the stripes of the automotive glass 1 according to the actual positions of the stripes on both sides of the displacement calibration scale, so that the image corresponds to the real size image.

[0061] In some embodiments, as Figure 3 shown, the calibration assembly 20 further includes:

[0062] A third calibration scale 23, which is arranged on the third side adjacent to the first side and the second side of the glass placement position, and a stripe pattern is formed on the third calibration scale 23.

[0063] In this embodiment, the third calibration scale 23 is arranged on the third side adjacent to the first side and the second side of the glass placement position, and a stripe pattern is formed on the third calibration scale 23. When the line array camera collects the stripe image of the third calibration scale 23, the pixels of the camera are matched according to the position relationship of each stripe of the stripe image, so that any pixel of the line array camera can correspond to the actual position information.

[0064] In some embodiments, as Figure 4 shown, the placement height of the automotive glass 1 is the same as the heights of the first calibration scale 21, the second calibration scale 22 and the third calibration scale 23. In this embodiment, the top horizontal heights of the first calibration scale 21, the second calibration scale 22 and the third calibration scale 23 need to be the same as the plane height of the supporting glass, so as to keep the initial reference plane of the detection consistent.

[0065] In some embodiments, asFigure 3 and Figure 4 As shown, it further includes:

[0066] A conveying assembly 50, which is located above the support frame 41 and is used to convey the automotive glass 1. The conveying assembly 50 includes a conveying frame 51, a driving member, and a plurality of conveying rollers 52 arranged at intervals on the conveying frame 51. The driving member is used to drive the plurality of conveying rollers 52 to rotate;

[0067] Wherein, the support frame 41 can be moved under the drive of the drive mechanism to lift the automotive glass 1 on the conveying assembly 50, and drive the automotive glass 1 and the calibration assembly 20 to move along the axial direction of the conveying rollers 52 to pass through the image acquisition area of the imaging assembly 30.

[0068] In this embodiment, when the automotive glass 1 moves to the conveying rollers 52, the driving member drives the plurality of conveying rollers 52 to rotate on the conveying frame 51. When the automotive glass 1 moves above the support frame 41, the drive mechanism drives the support frame 41 to rise and lift the automotive glass 1, driving the automotive glass 1, the displacement calibration scale, and the pixel accuracy calibration scale to move along the axial direction of the conveying rollers 52, passing through the image acquisition area for detection. When the automotive glass 1 completely passes through the image acquisition area, the detection is completed at this time. Then the support frame 41 moves the automotive glass 1 back to the conveying rollers 52 and descends, and the plurality of conveying rollers 52 accelerate to convey the automotive glass 1 away, waiting for the subsequent automotive glass 1 to be detected. The conveying assembly 50 is connected to the production line roller path and can be seamlessly docked after the automotive glass 1 is produced, meeting the requirements of real-time online high-efficiency detection. The first calibration scale 21 and the second calibration scale 22 are stripe images in the detection moving direction of the automotive glass 1, and the third calibration scale 23 is a stripe image in the detection non-moving direction of the automotive glass 1. In this way, the actual size image is obtained by correcting the image in both the horizontal and vertical directions. Through the data processing module, the spatial calculation of the stripe image and the contour size calculation of the automotive glass 1 are carried out, and then compared with the size drawing of the automotive glass 1 in the drawing library.

[0069] In some embodiments, as Figure 3 and Figure 4 shown,

[0070] A plurality of support components 42 are provided on the support frame 41. The plurality of support components 42 are located at the glass placement position and are arranged in sequence along the conveying direction of the conveying assembly 50. The plurality of support components 42 are used to move with the support frame 41 to pass through between the conveying rollers 52 to support the automotive glass 1;

[0071] The support component 42 includes a plurality of support members 421, and the plurality of support members 421 are arranged in sequence along the axial direction of the conveying rollers 52.

[0072] In this embodiment, a plurality of support components 42 are located at the glass placement position for supporting the automotive glass 1. The plurality of support components 42 are arranged in sequence along the conveying direction of the conveying component 50 and are spaced apart from the conveying rollers 52, so as to move along with the support frame 41 and pass out between the conveying rollers 52 to support the automotive glass 1.

[0073] In some embodiments, as Figure 4 shown, the support member 421 includes a support rod 421a and a suction cup 421b. One end of the support rod 421a is connected to the support frame 41, and the suction cup 421b is arranged at the other end of the support rod 421a for sucking and holding the automotive glass.

[0074] In this embodiment, the support member 421 adopts the suction cup 421b, which can stably adsorb the automotive glass 1 when the support frame 41 moves, prevent the automotive glass 1 from shaking and shifting during the detection process, improve the detection position, and thus improve the detection accuracy.

[0075] In some embodiments, an induction component is provided on one side of the conveying component 50, and the induction component is used to sense the automotive glass 1 conveyed on the conveying component 50.

[0076] In this embodiment, an induction component is arranged on one side of the conveying component 50. When the automotive glass 1 enters the conveying rollers 52, the induction component senses the automotive glass 1, and the conveying rollers 52 will decelerate so that the automotive glass 1 stops on the support frame 41. After the support frame 41 moves the automotive glass 1 to the image acquisition area, the induction component can be a laser induction device, including but not limited to this.

[0077] In some embodiments, as Figure 1 and Figure 2 shown, the light source component 10 includes:

[0078] A reflecting mirror 11, located below the imaging component 30;

[0079] Two light sources 12, arranged on one side of the reflecting mirror 11, for horizontally emitting light towards the reflecting mirror 11 and reflecting the light to the automotive glass 1 through the reflecting mirror 11;

[0080] Wherein, when one of the two light sources 12 emits light, the imaging component 30 acquires the fringe image of the automotive glass 1; when both of the two light sources 12 emit light, the imaging component acquires the uniform light image of the automotive glass 1.

[0081] In this embodiment, a 45° mirror 11 is installed inside the light source assembly 10. The coaxial light source is located on one side of the mirror, and the emitted light irradiates onto the mirror 11. The light first vertically irradiates onto the automotive glass 1, and then the image reflected by the automotive glass 1 enters the imaging assembly 30. In this way, both the reflection is eliminated and the reflection of the imaging assembly 30 in the image is avoided. The automotive glass 1 presents a clear image, which is collected by the imaging assembly 30 and used for further analysis and processing by the data processing module. The coaxial light source is set in two groups. When one group is lit, it forms striped light with light and dark intervals. When the automotive glass 1 has height information, due to the change in optical path, some stripes are deformed. The originally uniform striped light source will be regularly deformed according to the height of the automotive glass 1. The striped light reflects a striped image containing height information through the automotive glass 1. The imaging assembly 30 collects the striped image modulated and deformed by the automotive glass 1 and sends it to the data processing module. After processing the deformed striped image, the phase of the deformed stripes is obtained, and the height of the corresponding point of the automotive glass 1 is obtained through the height mapping relationship in space. The contour of the automotive glass 1 is constructed according to the height information. When both groups are lit together, the light source is uniform light, which improves the image clarity. At this time, the automotive glass 1 reflects a uniform light image, which is used to display the contour and measurement size of the automotive glass 1. By collecting the striped image and the uniform light image through the imaging assembly 30, the height information and the actual size of the automotive glass 1 are calculated.

[0082] In summary, the automotive glass size detection device proposed by the present invention has the following advantages compared with the prior art:

[0083] 1. It can quickly and online detect the size of special-shaped automotive glass, and there is no limit to the size of the glass. As long as the glass roller path on the production line can transmit, the detection with the same accuracy can be carried out.

[0084] 2. In the past, due to the jitter and offset of the glass transmission in the glass moving direction, the glass was inaccurate in the moving direction. By using the combination of a moving platform and a calibration frame, not only the displacement of the glass movement is solved, but also the problem of high uniformity of the moving speed is solved. It is not affected by the moving speed, so the detection accuracy in two dimensions of the glass is guaranteed.

[0085] 3. It can detect the entire contour of the glass, and can more reflect the actual size of the glass than the previous point-taking method, and detect the actual size problem of the glass.

[0086] 4. It can not only detect ordinary flat special-shaped glass, but also detect glass with three-dimensional dimensions after thermal bending.

[0087] The above are only partial or preferred embodiments of the present invention. Neither the written description nor the drawings can limit the scope of protection of the present invention. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the overall concept of the present invention, or any direct / indirect application in other related technical fields is included in the scope of protection of the present invention.

Claims

1. An automobile glass size detection device, characterized in that, It includes a detection platform, a light source assembly, a calibration assembly, an imaging assembly, a data processing module, and a conveying assembly; wherein, the detection platform is used for placing the automotive glass and can move relative to the imaging assembly to pass through the image acquisition area of the imaging assembly. The detection platform includes a support frame and a driving mechanism. The support frame is provided with a glass placement position for placing the automotive glass. The calibration assembly is located on the support frame, and the driving mechanism is connected to the support frame for driving the support frame to move; the light source assembly includes a reflector, which is located below the imaging assembly and is used for projecting uniform light rays and fringe light rays onto the automotive glass; the calibration assembly is provided on the detection platform and the calibration assembly forms a fringe pattern; the imaging assembly is used for collecting the uniform light image and fringe image of the automotive glass as well as the fringe pattern of the calibration assembly, and sending them to the data processing module; the data processing module is used for calculating the detection position error data of the automotive glass according to the fringe image of the automotive glass and the fringe pattern of the calibration assembly, correcting the uniform light image on the surface of the automotive glass according to the detection position error data to obtain a corrected image, and then calculating the outer dimensions of the automotive glass according to the corrected image; the conveying assembly is located above the support frame and is used for conveying the automotive glass. The conveying assembly includes a conveying frame, a driving member, and a plurality of conveying rollers arranged at intervals on the conveying frame. The driving member is used for driving the plurality of conveying rollers to rotate; the support frame can move under the drive of the driving mechanism to lift the automotive glass on the conveying assembly, and drive the automotive glass and the calibration assembly to move along the axial direction of the conveying rollers to pass through the image acquisition area of the imaging assembly.

2. The automotive glass size detection device according to claim 1, wherein The calibration assembly includes: a first calibration scale and a second calibration scale, which are respectively arranged on the first side and the second side opposite to the glass placement position, and the first calibration scale and the second calibration scale are formed with the fringe pattern.

3. The automotive glass size detection device according to claim 2, characterized in that, The calibration assembly further includes: a third calibration scale, which is arranged on the third side adjacent to the first side and the second side of the glass placement position, and the third calibration scale is formed with the fringe pattern.

4. The automotive glass size detection device according to claim 3, characterized in that, The placement height of the automotive glass is the same as the heights of the first calibration scale, the second calibration scale, and the third calibration scale.

5. The automotive glass size detection device according to claim 4, wherein, a plurality of support assemblies are provided on the support frame. The plurality of support assemblies are located at the glass placement position and are arranged in sequence along the conveying direction of the conveying assembly. The plurality of support assemblies are used for moving with the support frame to pass out between the conveying rollers to support the automotive glass; the support assembly includes a plurality of support members, and the plurality of support members are arranged in sequence along the axial direction of the conveying rollers.

6. The automotive glass size detection device according to claim 5, characterized in that The support member includes a support rod and a suction cup. One end of the support rod is connected to the support frame, and the suction cup is arranged at the other end of the support rod for sucking and holding the automotive glass.

7. The automotive glass size detection device according to claim 5, characterized in that, An induction assembly is provided on one side of the conveying assembly, and the induction assembly is used for inducing the automotive glass conveyed on the conveying assembly.

8. The automotive glass size detection device according to claim 1, characterized in that, The light source assembly further includes: Two light sources are provided on one side of the reflector, and are used for horizontally emitting light towards the reflector and reflecting the light to the vehicle glass through the reflector; Wherein, when one of the two light sources emits light, the imaging component collects the stripe image of the vehicle glass; when both of the two light sources emit light, the imaging component collects the uniform light image of the vehicle glass.

Citation Information

Patent Citations

  • Automobile glass size detection device

    CN218297043U