Glass deformation inspection device

Abstract

The utility model provides a glass deformation inspection device, and relates to the technical field of deformation detection, and the glass deformation inspection device comprises a conveying mechanism, a profiling jig, a feeding stopper, an L-shaped leaning corner, a discharging stopper and an LED display screen; glass to be inspected is placed in the profiling jig; the profiling jig is arranged on the conveying mechanism and moves along with the conveying mechanism. When the feeding stopper is in an extending state, the profiling jig is stopped from entering the inspection station, and when the feeding stopper is in a retracting state, the profiling jig is allowed to enter the inspection station; when the profiling jig enters an inspection station, the L-shaped leaning angle extends out to fix the profiling jig; when the discharging stopper is in an extending state, the profiling jig is stopped from leaving the inspection station, and when the discharging stopper is in a retracting state, the profiling jig is allowed to leave the inspection station; the LED display screen is used for displaying patterns, so that a worker observes the pattern projection on the to-be-inspected glass to judge whether the to-be-inspected glass is deformed or not.

Description

Technical Field

[0001] This application relates to the field of deformation detection technology, and in particular to a glass deformation inspection device. Background Technology

[0002] HUD (Head-Up Display), also known as a head-up display, is a device that projects important information onto a glass surface using optical reflection, allowing the driver to view key information without looking down. Originating from the optical sights of fighter jets, it first appeared in World War I and became widely used during World War II. The most important function of a HUD is to ensure driving stability, allowing the driver to focus more on observing road conditions. For example, when driving on a highway, if the driver looks down at navigation or driving status for a few seconds, the vehicle could have been "blindly driving" for tens of meters at high speed, with unpredictable changes in traffic conditions and potentially disastrous consequences. It also facilitates driving operation, allowing the driver to view information without taking their eyes off the road. HUDs can display vehicle speed, navigation information, currently playing music, etc., reducing the need for eye movement and improving driving safety and convenience.

[0003] HUDs project information onto glass via optical reflection, requiring extremely high image clarity and accuracy. Any deformation of the glass or mold marks will affect the light propagation path, leading to image distortion or blurring. Therefore, detecting glass deformation such as mold marks is particularly important during the manufacturing process of HUDs.

[0004] The applicant found through a search that Chinese patent publication number CN216717350U discloses a deformation detection device for energy-saving glass processing. By sliding a lead screw and slider, a roller moves on the glass surface. During the movement, a pressure sensor feeds back the change in pressure value, thereby determining whether deformation has occurred. The device has high detection accuracy and can complete the detection in one go, effectively improving the detection efficiency. It is practical and suitable for widespread promotion and use.

[0005] However, the aforementioned pressure sensor-based glass deformation detection method is difficult to apply to HUD (Head-Up Display) glass deformation detection. HUD glass has extremely low tolerance for deformation, as even minute deformations can cause distortion, blurring, or ghosting of the projected image. These optical defects have a significant impact on driving safety, and pressure sensor-based detection methods may struggle to capture such minute deformations, failing to meet the high-precision optical requirements of HUD glass. Utility Model Content

[0006] One of the technical problems this application aims to solve is that glass deformation detection methods based on pressure sensors are difficult to capture such minute deformations, making it difficult to meet the high-precision optical requirements of HUD glass.

[0007] To solve the above-mentioned technical problems, this application provides a glass deformation inspection device, including: a conveying mechanism, a conforming fixture, an infeed block, an L-shaped guide, an outfeed block, and an LED display screen;

[0008] The glass to be inspected is placed in the conformal fixture;

[0009] The contour jig is mounted on the conveyor mechanism and moves with the conveyor mechanism;

[0010] The feed stop has an extended state and a retracted state. When the feed stop is in the extended state, it prevents the profiling fixture from entering the inspection station. When the feed stop is in the retracted state, it allows the profiling fixture to enter the inspection station.

[0011] When the copying fixture enters the inspection station, the L-shaped corner extends to fix the copying fixture; when the copying fixture leaves the inspection station, the L-shaped corner retracts to release the fixation of the copying fixture.

[0012] The discharge stop has an extended state and a retracted state. When the discharge stop is in the extended state, it prevents the profiling fixture from leaving the inspection station. When the discharge stop is in the retracted state, it allows the profiling fixture to leave the inspection station.

[0013] LED displays are used to show patterns so that staff can observe the pattern projection on the glass to be inspected to determine whether the glass has deformed.

[0014] In some embodiments, the storage space of the conforming fixture is adapted to the shape of the glass to be inspected.

[0015] In some embodiments, the LED display screen is at a 60° angle to the glass to be inspected.

[0016] In some embodiments, the LED display shows horizontal stripes, vertical stripes, or a grid pattern.

[0017] In some embodiments, the glass deformation testing device is communicatively connected to the MES system;

[0018] Before feeding, scan the QR code on the profiling fixture to compare with the data in the local or server database to determine if any process is missing, and upload the process to the MES system. When the process meets the requirements, control the feeding block to retract and allow the profiling fixture to enter the inspection station.

[0019] In some embodiments, before discharge, when the staff determines that the glass to be inspected is not deformed, they scan the QR code on the conforming fixture to bind the inspection process and upload the process to the MES system. When the staff determines that the glass to be inspected is deformed, they control the discharge block to extend, preventing the conforming fixture from leaving the inspection station and triggering an alarm. After the staff removes the deformed glass, they control the discharge block to retract.

[0020] In some embodiments, the glass deformation testing apparatus further includes: a vacuum pump;

[0021] When the L-shaped corner extends to fix the contour jig, turn on the vacuum pump.

[0022] In some embodiments, the glass deformation inspection device further includes an infrared transmitter and an infrared receiver; the infrared transmitter and the infrared receiver work together to detect whether the conforming fixture has entered the inspection station.

[0023] In some embodiments, the infrared transmitter and the infrared receiver are arranged opposite to each other. When the conforming fixture enters the inspection station, the infrared transmission path between the infrared transmitter and the infrared receiver is blocked by the conforming fixture, forming an infrared signal. The L-shaped corner is extended according to the infrared signal to fix the conforming fixture.

[0024] In some embodiments, the conveying mechanism includes: a support base, a first rotating shaft, a rotating roller, a conveyor belt, a base, a servo motor, a second rotating shaft, a gear, a rack, a second sliding block, and a second sliding groove;

[0025] A first rotating shaft is provided on the support base, a rotating roller is sleeved on the first rotating shaft, a conveyor belt is installed on the outer edge of the rotating roller, a base is provided on one side of the outer wall of the conveyor belt, the output shaft of the servo motor is fixedly connected to the second rotating shaft, one end of the second rotating shaft passes through the interior of the base, a gear is sleeved on the second rotating shaft, the gear meshes with a rack, the rack is fixedly connected to the second sliding block, a second sliding groove is provided on the base, and the second sliding block is slidably disposed in the second sliding groove;

[0026] The gear meshes with the rack, causing the second sliding block to slide in the second sliding groove to adjust the tension of the conveyor belt.

[0027] Through the above technical solution, the glass deformation inspection device provided in this application accurately places the glass to be inspected onto the inspection station and displays a preset pattern on an LED display screen, allowing operators to observe the pattern projection on the glass to determine whether deformation exists. This manual inspection captures subtle deformations, meeting the high-precision optical requirements of HUD glass. Furthermore, the combination of a conveying mechanism and a contour-following fixture achieves automated glass transport and precise positioning. Additionally, inlet and outlet barriers control the glass's entry and exit from the inspection station, and automated operation reduces manual intervention and improves inspection efficiency. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of a glass deformation testing device disclosed in an embodiment of this application.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Conveying mechanism; 2. Copying fixture; 3. Feed stop; 4. L-shaped corner stop; 5. Discharge stop; 6. LED display screen. Detailed Implementation

[0032] The embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of this application by way of example, but should not be used to limit the scope of this application. This application can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0033] These embodiments are provided to make the application thorough and complete, and to fully express the scope of the application to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​illustrated in these embodiments should be interpreted as merely exemplary and not as limiting.

[0034] It should be noted that, in the description of this application, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this application and simplifying the description, and 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 of this application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0035] Furthermore, the terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well.

[0036] It should also be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device.

[0037] All terms used in this application have the same meaning as understood by one of ordinary skill in the art to which this application pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0038] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0039] Reference manual attached Figure 1 The diagram shows a structural schematic of a glass deformation testing device disclosed in an embodiment of this application.

[0040] This application provides a glass deformation inspection device, including: a conveying mechanism 1, a conforming fixture 2, an infeed block 3, an L-shaped guide angle 4, an outfeed block 5, and an LED display screen 6.

[0041] The glass to be inspected is placed in the conformal fixture 2. The conformal fixture 2 is mounted on the conveying mechanism 1 and moves with it. Through the combination of the conveying mechanism 1 and the conformal fixture 2, the glass can be automatically transported to the inspection station without manual handling and positioning. The design of the inlet and outlet barriers ensures that the glass enters and leaves the inspection area at the appropriate time, resulting in a high degree of automation and reducing the possibility of errors due to human intervention. The inlet barrier 3 has an extended state and a retracted state. When the inlet barrier 3 is in the extended state, it prevents the conformal fixture 2 from entering the inspection station; when the inlet barrier 3 is in the retracted state, it allows the conformal fixture 2 to enter the inspection station. The design of the inlet barrier 3 and the outlet barrier 5 allows for precise control of the movement and fixation of the glass throughout the inspection process. This controllability ensures the stability of the inspection environment and helps improve the reliability of the inspection results. When the conformal fixture 2 enters the inspection station, the L-shaped retaining angle 4 extends to fix the conformal fixture 2. The L-shaped retaining angle 4 can fix the conformal fixture 2 at the inspection station, ensuring that the glass remains stable during the inspection process. This precise positioning is the foundation for achieving high-precision inspection, effectively avoiding inspection errors caused by glass position movement or instability. When the conforming fixture 2 leaves the inspection station, the L-shaped corner 4 retracts, releasing the fixture 2 from its fixation. The discharge stop 5 has an extended and a retracted state. When the discharge stop 5 is in the extended state, it prevents the conforming fixture 2 from leaving the inspection station; when it is in the retracted state, it allows the fixture 2 to leave the inspection station. The LED display screen 6 is used to display patterns, allowing operators to observe the pattern projection on the glass to be inspected and determine whether the glass has deformed.

[0042] In some embodiments, the feed stop 3 and the discharge stop 5 can employ pneumatic blocking mechanisms, using compressed air to drive a piston, which in turn pushes the stop rod to extend or retract via a cylinder. Pneumatic systems offer rapid response and are suitable for applications requiring quick opening and closing. Alternatively, an electric blocking mechanism can be used, employing an electric motor to drive a mechanical device (such as a screw, gear, or connecting rod) to extend or retract the stop rod. Servo motors or stepper motors can provide precise positioning control. A spring blocking mechanism can also be used, where the extension of the stop rod is controlled by the spring force. This is typically used in conjunction with a mechanical cam or actuating device; when blocking is required, the spring extends; when releasing the block, the spring is compressed by the mechanical device, causing the stop rod to retract.

[0043] Similarly, the L-shaped corner 4 can also be extended and retracted based on a pneumatic mechanism, an electric mechanism, or a spring mechanism.

[0044] In some embodiments, the storage space of the conformal fixture 2 is adapted to the shape of the glass to be inspected. This means that the glass can be precisely fitted and fixed in the fixture. This precise fit effectively prevents the glass from shaking or shifting during transport and inspection, ensuring that the glass remains stable throughout the inspection process.

[0045] In some embodiments, the LED display 6 is at a 60° angle to the glass to be inspected. By setting the LED display at a 60° angle to the glass, interference from ambient light sources can be effectively reduced, and unnecessary reflected light can be prevented from entering the inspection area. This helps ensure that the pattern projected by the display is clearer and more stable on the glass surface, thereby improving the accuracy of the inspection.

[0046] In some embodiments, the LED display 6 displays horizontal stripes, vertical stripes, or a grid pattern.

[0047] Those skilled in the art can set the stripe type displayed on the LED display screen according to actual conditions; this invention does not impose any limitations. Different glass materials or applications may have different deformation detection requirements. By setting different stripe types, the detection device can flexibly adapt to these requirements, ensuring effective detection of different types of glass.

[0048] In some embodiments, the glass deformation inspection device is communicatively connected to the MES system. Before feeding, the QR code on the conforming fixture 2 is scanned and compared with data in the local or server database to determine if any process is missing. The process is then uploaded to the MES system. When the process meets the requirements, the feeding stop 3 is retracted, allowing the conforming fixture 2 to enter the inspection station. The MES system automatically determines whether the process meets the requirements, reducing the complexity and potential errors of manual inspection. The QR code scanning before feeding ensures that only glass that has completed the previous process enters the inspection station, avoiding missed processes. Before unloading, when the operator determines that the glass to be inspected is not deformed, the QR code on the conforming fixture 2 is scanned to bind the inspection process, and the process is uploaded to the MES system. When the operator determines that the glass to be inspected is deformed, the unloading stop 5 is extended to prevent the conforming fixture 2 from leaving the inspection station and an alarm is triggered. After the operator removes the deformed glass, the unloading stop 5 is retracted. Before unloading, the operator performs a final deformation check on the glass to ensure that only glass that meets the quality standards enters the next process. This human-machine combined judgment method can effectively capture subtle problems that may be missed in automated detection, thereby improving the overall reliability of the detection.

[0049] In some embodiments, the glass deformation testing apparatus further includes a vacuum pump. The vacuum pump is activated when the L-shaped corner 4 extends to fix the conformal fixture 2. The vacuum pump uses suction to firmly fix the glass onto the conformal fixture, preventing minute movement of the glass during testing. This stability is crucial for deformation testing, as any slight movement can lead to inaccurate test results.

[0050] In some embodiments, the glass deformation inspection device further includes an infrared transmitter and an infrared receiver. The infrared transmitter and receiver work together to detect whether the conforming fixture 2 has entered the inspection station. The infrared transmitter and receiver are positioned opposite each other. When the conforming fixture 2 enters the inspection station, the infrared transmission path between the infrared transmitter and receiver is blocked by the conforming fixture 2, generating an infrared signal. Based on the infrared signal, the L-shaped retaining angle 4 extends to fix the conforming fixture 2. The infrared transmitter and receiver can detect the specific position of the conforming fixture in real time, ensuring that the L-shaped retaining angle only extends for fixation when the fixture accurately reaches the inspection station. This precise positioning reduces positional errors and ensures the stability of the glass during the inspection process.

[0051] In some embodiments, the conveying mechanism 1 includes: a support base, a first rotating shaft, a rotating roller, a conveyor belt, a base, a servo motor, a second rotating shaft, a gear, a rack, a second sliding block, and a second sliding groove. The support base has a rotatable first rotating shaft, on which a rotatable rotating roller is mounted. A conveyor belt is mounted on the outer edge of the rotating roller. A base is located on one side of the outer wall of the conveyor belt. The output shaft of the servo motor is fixedly connected to the second rotating shaft. One end of the second rotating shaft passes through the interior of the base. A gear is mounted on the second rotating shaft, meshing with a rack. The rack is fixedly connected to a second sliding block. A second sliding groove is provided on the base, and the second sliding block is slidably disposed within the second sliding groove. The meshing of the gear and rack causes the second sliding block to slide within the second sliding groove, thereby adjusting the tension of the conveyor belt. The meshing of gears and racks allows for precise adjustment of the conveyor belt tension, ensuring smooth operation and reducing glass position shifts or vibrations caused by unstable driving or jumping. It also prevents deviations in the position and angle of the glass to be tested due to uneven conveyor belts, thus ensuring the accuracy of the test results.

[0052] Through the above technical solution, the glass deformation inspection device provided in this application accurately places the glass to be inspected onto the inspection station and displays a preset pattern on an LED display screen, allowing operators to observe the pattern projection on the glass to determine whether deformation exists. This manual inspection captures minute deformations, meeting the high-precision optical requirements of HUD glass. Furthermore, the combination of a conveying mechanism and a contour-following fixture achieves automated glass transport and precise positioning. Additionally, infeed and outfeed barriers control the glass's entry and exit from the inspection station, and automated operation reduces manual intervention and improves inspection efficiency.

[0053] The embodiments of this application have now been described in detail. To avoid obscuring the concept of this application, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0054] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any manner.

Claims

1. A glass deformation testing device, characterized in that, The device comprises a conveying mechanism (1), a profiling fixture (2), an inlet blocking device (3), an L-shaped corner (4), an outlet blocking device (5), and an LED display screen (6). The glass to be inspected is placed in the profiling fixture (2). The profiling fixture (2) is arranged on the conveying mechanism (1) and moves with the conveying mechanism (1). The inlet blocking device (3) has an extended state and a retracted state. When the inlet blocking device (3) is in the extended state, it blocks the profiling fixture (2) from entering the inspection station. When the inlet blocking device (3) is in the retracted state, it allows the profiling fixture (2) to enter the inspection station. When the profiling fixture (2) enters the inspection station, the L-shaped corner (4) extends to fix the profiling fixture (2). When the profiling fixture (2) leaves the inspection station, the L-shaped corner (4) retracts to release the fixation of the profiling fixture (2). The outlet blocking device (5) has an extended state and a retracted state. When the outlet blocking device (5) is in the extended state, it blocks the profiling fixture (2) from leaving the inspection station. When the outlet blocking device (5) is in the retracted state, it allows the profiling fixture (2) to leave the inspection station. The LED display screen (6) is used to display patterns so that the staff can observe the pattern projection on the glass to be inspected to determine whether the glass to be inspected has deformation. The storage space of the profiling fixture (2) is adapted to the shape of the glass to be inspected.

2. The glass distortion inspection apparatus of claim 1, wherein, The LED display screen (6) forms a 60° angle with the glass to be inspected.

3. The glass distortion inspection apparatus of claim 1, wherein, The LED display screen (6) displays horizontal stripes, vertical stripes, or grid lines.

4. The glass distortion inspection apparatus of claim 1, wherein, The device further comprises a vacuum pump.

5. The glass distortion inspection apparatus of claim 1, wherein, When the L-shaped corner (4) extends to fix the profiling fixture (2), the vacuum pump is turned on. The device further comprises an infrared emitter and an infrared receiver. The infrared emitter and the infrared receiver cooperate to detect whether the profiling fixture (2) enters the inspection station.

6. The glass distortion inspection apparatus of claim 1, wherein, The infrared emitter and the infrared receiver are oppositely arranged. When the profiling fixture (2) enters the inspection station, the infrared transmission path between the infrared emitter and the infrared receiver is blocked by the profiling fixture (2), forming an infrared signal. According to the infrared signal, the L-shaped corner (4) is controlled to extend to fix the profiling fixture (2). The conveying mechanism (1) comprises a support seat, a first rotating shaft, a rotating roller, a conveying belt, a base, a servo motor, a second rotating shaft, a gear, a rack, a second sliding block, and a second sliding groove. The first rotating shaft is rotatably arranged on the support seat. The rotating roller is rotatably arranged on the first rotating shaft. The outer edge of the rotating roller is provided with the conveying belt. One side of the outer wall of the conveying belt is provided with the base. The output shaft of the servo motor is fixedly connected with the second rotating shaft. One end of the second rotating shaft penetrates through the inside of the base. The second rotating shaft is sleeved with the gear. The gear is engaged with the rack. The rack is fixedly connected with the second sliding block. The base is provided with the second sliding groove. The second sliding block is slidingly arranged in the second sliding groove.

7. The glass distortion inspection apparatus of claim 6, wherein, ​ 8. The glass distortion inspection apparatus of claim 1, wherein, ​ ​ Through the meshing of the gear and the rack, the second sliding block is driven to slide in the second sliding groove, so as to adjust the tightness of the conveying belt.

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