Curved glass curvature optical testing apparatus

Abstract

The application provides a curved surface glass curvature optical testing device, and belongs to the technical field of curved surface glass. The device comprises a supporting mechanism, a detecting mechanism, a shifting mechanism, a clamping mechanism, a pressure reducing mechanism and a protection mechanism. The detecting mechanism is rotatably arranged on the supporting mechanism, the curved surface glass is placed on a detection table of the detecting mechanism, the supporting mechanism can rotatably drive the curved surface glass to switch to a standing state for curvature detection, the shifting mechanism is arranged on the detection table, and two clamping mechanisms are symmetrically arranged on the shifting mechanism. Each clamping mechanism comprises a rotatable rotating piece, the rotating piece can be adaptively rotated according to the radian of the outer sidewall of the curved surface glass, and the two rotating pieces form supports for the two side walls of the curved surface glass in the standing state detection. The device avoids the problem of micro-deformation caused by its own gravity through standing detection, restores the actual surface shape of the curved surface glass to the greatest extent, and ensures the authenticity of the collected curvature data.

Description

Technical Field

[0001] This application relates to the field of curved glass technology, and more specifically, to an optical testing device for the curvature of curved glass. Background Technology

[0002] As the consumer electronics and automotive electronics industries rapidly evolve towards lightweighting, intelligence, and integration, curved glass, with its structural adaptability to product shapes, excellent optical transmittance, and aesthetic appeal, has become a key material for core components such as smartphones, in-vehicle central control screens, AR / VR optical modules, and automotive head-up displays (HUDs). The curvature accuracy of curved glass directly determines its compatibility with upstream and downstream components and is a critical indicator affecting core functions such as automotive displays and optical imaging. Therefore, the precise detection of curvature parameters is crucial in the production process control and finished product inspection of curved glass. Maintaining the stability of the curved glass's posture and controlling it without additional deformation during inspection are essential prerequisites for ensuring the authenticity and accuracy of curvature test data.

[0003] Currently, the industry's curvature testing for large-size double-sided glass still relies primarily on traditional flat-type testing equipment. Mainstream methods include vacuum adsorption, multi-point pin support, or mechanical clamping to fix the glass's posture. During testing, various fixing structures are needed to control glass deformation and restore its actual curvature. However, existing flat-type testing solutions and their associated fixing methods, limited by structural design and force control accuracy, struggle to address the deformation problem during the testing of large-size double-curved glass. This results in significant data distortion and fails to meet the high-precision mass production testing requirements for curved glass in high-end consumer electronics and automotive electronics sectors. Specific technical pain points are significant. Firstly, the flat-lay test structure naturally has defects due to gravity deformation. Large-size hyperbolic glass generally has the characteristics of ultra-thinness and extremely poor material rigidity. When laid flat, the central area is prone to undesigned bending due to its own gravity, resulting in the actual surface shape of the glass being much different from the designed surface shape. The curvature data collected based on this state cannot reflect the true curvature parameters of the product. Secondly, the force control precision of existing fixing mechanisms is insufficient, which can easily introduce additional deformation. Fixing methods such as vacuum adsorption, multi-point pin support, and mechanical clamping have low driving force and control precision. At the same time, during batch testing, existing fixing mechanisms have difficulty in achieving uniform application of clamping and supporting forces. There are significant differences in the external forces applied to different test samples and different areas of the same sample, resulting in uneven deformation of the glass and deformation location. Ultimately, this leads to distortion of overall testing accuracy and fails to meet the consistency testing requirements of mass production.

[0004] Therefore, there is an urgent need for an optical testing device for the curvature of curved glass that can avoid deformation caused by gravity. Summary of the Invention

[0005] This application aims to address at least one of the technical problems existing in the prior art or related technologies.

[0006] This application provides an optical testing device for the curvature of curved glass. By using a vertical testing method, it avoids the problem of micro-deformation caused by its own gravity, restores the actual surface shape of the curved glass to the greatest extent, and ensures the authenticity of the collected curvature data.

[0007] This application provides an optical testing device for the curvature of curved glass, including a support mechanism, a testing mechanism, a shifting mechanism, a clamping mechanism, a pressure reduction mechanism, and a protective mechanism. The system includes: a detection mechanism rotatably mounted on the support mechanism; curved glass placed on the detection platform of the detection mechanism; the support mechanism rotatably drives the curved glass to switch to an upright position for curvature detection; a shifting mechanism mounted on the detection platform; two clamping mechanisms symmetrically mounted on the shifting mechanism, each clamping mechanism including a rotatable rotating component that adaptively rotates according to the curvature of the outer wall of the curved glass to fit together; two rotating components supporting the bottom walls of the curved glass during upright detection; two pressure-reducing mechanisms correspondingly mounted on each clamping mechanism; each pressure-reducing mechanism providing flexible buffering of the clamping pressure of the corresponding clamping mechanism to prevent excessive clamping force from causing deformation of the curved glass; each pressure-reducing mechanism having a built-in solenoid valve that locks the pressure state to fix the support angle of the rotating component; and two protective mechanisms symmetrically mounted on the shifting mechanism to shield the top of the upright curved glass to prevent it from falling when an abnormal upright position is detected.

[0008] In some embodiments, the support mechanism includes: an outer housing; four support seats symmetrically arranged inside the outer housing, each support seat having a rotatable roller mounted on it; two support platforms symmetrically arranged on the two side walls of the outer housing; a reduction motor disposed on one of the support platforms; a limiting seat disposed on the other support platform; and a limiting block abutting against the limiting seat.

[0009] In some embodiments, the detection mechanism includes: a detection chamber, one end of which is connected to the output shaft of the geared motor and the other end of which is fixedly connected to the limiting block, and the outer wall of the detection chamber abuts against the rolling wheel on each of the support seats; a detection pad, which is laid on the detection platform of the detection chamber and is made of non-reflective material; and a laser detection module, which is disposed on the inner top wall of the detection chamber.

[0010] In some embodiments, the displacement mechanism includes: a dual-axis motor disposed inside the detection chamber; two lead screws symmetrically disposed on both sides of the dual-axis motor and connected to the output shaft of the dual-axis motor; guide posts symmetrically disposed inside the detection chamber with respect to the lead screws; four movable seats respectively sleeved on each of the lead screws or the guide posts and slidable along the lead screws and the guide posts; two connecting frames respectively horizontally placed on the two movable seats on corresponding sides; and two long support arms symmetrically disposed on the corresponding connecting frames.

[0011] In some embodiments, each clamping mechanism includes: a fixed frame disposed at one end of the long support arm away from the connecting frame, the fixed frame having a cylindrical inner cavity; a mounting frame disposed at one end of the fixed frame away from the long support arm, the mounting frame having a protruding round rod on one side near the fixed frame, the round rod being slidable within the cylindrical inner cavity of the fixed frame; a rotating member rotatably connected to the mounting frame; a buffer pad disposed on the rotating member; an arc-shaped piston fixedly connected to the rotating member; an arc-shaped cylinder fixedly connected to the mounting frame, the arc-shaped piston extending into the inner cavity of the arc-shaped cylinder at one end away from the rotating member; an oil supply pipe, one end of which communicates with the end of the arc-shaped cylinder away from the arc-shaped piston; a transition cylinder fixedly disposed on the mounting frame and communicating with the other end of the oil supply pipe; and a transition piston, one end of which is built into the inner cavity of the transition cylinder and fixedly connected to the fixed frame, the transition piston having a through flow channel inside.

[0012] In some embodiments, each of the pressure-reducing mechanisms includes: a solenoid valve disposed on the transition piston; a first pressure-reducing cylinder disposed on the side of the transition piston away from the transition cylinder, and the inner cavities of the two are interconnected; a second pressure-reducing cylinder slidably sleeved on the outside of the first pressure-reducing cylinder and slidable along the axial direction of the first pressure-reducing cylinder; two limiting rods symmetrically disposed on the outer wall of the first pressure-reducing cylinder, and the second pressure-reducing cylinder slidable along the two limiting rods; a fixing block fixedly disposed on the detection platform of the detection chamber; and a top column fixedly disposed on the fixing block and capable of abutting against the side wall of the second pressure-reducing cylinder away from the first pressure-reducing cylinder.

[0013] In some embodiments, each of the protective mechanisms includes: a short support arm disposed on the connecting frame; a servo motor disposed on the short support arm; and a protective disk that is drively connected to the output shaft of the servo motor.

[0014] In some embodiments, a stabilizing mechanism is further included to assist in fixing the curved glass in an upright position. The stabilizing mechanism includes: a telescopic bladder disposed in the central region of the detection chamber; an air supply pipe connected at one end to the telescopic bladder; an air pump fixedly disposed on the bottom wall of the detection chamber and connected to the other end of the air supply pipe; and an air pressure detector disposed on the telescopic bladder.

[0015] In some embodiments, the height of the protective disc is greater than the height of the curved glass.

[0016] In some embodiments, the device is further equipped with a sensor for monitoring the upright position of the curved glass.

[0017] Compared with the prior art, the technical solution provided in this application includes at least the following technical effects: The curved glass curvature optical testing device provided in this application avoids the micro-deformation problem caused by its own gravity through vertical testing, restores the actual surface shape of the curved glass to the greatest extent, and ensures the authenticity of the collected curvature data. The vertical inspection design fundamentally avoids the micro-deformation problem caused by the glass's own weight acting on the weak parts of the curved surface in traditional single flat inspection. It maximizes the reproduction of the actual surface shape of hyperbolic glass and similar structural glass, ensuring that the collected curvature data closely matches the actual product specifications, and significantly improving inspection accuracy. At the same time, the rotating part of the clamping mechanism can adaptively conform to the curvature of the glass. When the rotating part is in close contact with the glass, the excessive thrust generated by the continued feeding of the displacement mechanism no longer acts on the glass, but instead pushes the transition piston to move and squeeze the hydraulic oil. The hydraulic oil forms damping through the through flow channel and pushes the second pressure reducing cylinder to displace, consuming the excessive thrust in the form of displacement, thereby further offsetting the excessive thrust and keeping the clamping force within the glass's tolerance range. This ensures that there is no excessive compression or additional deformation during the clamping process, maximizing the protection of the original surface shape and surface accuracy of the glass. Meanwhile, relying on adaptive conformation and uniformly distributed clamping force, reliable clamping of the glass is achieved, ensuring the stability of the glass posture during the inspection process.

[0018] Additional aspects and advantages of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the overall structure of the device according to some embodiments of this application; Figure 2 This is a schematic diagram of the support mechanism in some embodiments of this application; Figure 3 This is a schematic diagram of the structure of the geared motor and the detection chamber according to some embodiments of this application; Figure 4 This is a schematic diagram of the structure of the limiting seat and the detection chamber according to some embodiments of this application; Figure 5 This is a schematic diagram of the internal cross-sectional structure of the detection chamber in some embodiments of this application; Figure 6This is a schematic diagram of the detection chamber and displacement mechanism according to some embodiments of this application; Figure 7 This is a schematic diagram of the structure of the shifting mechanism according to some embodiments of this application; Figure 8 This is a schematic diagram of the clamping mechanism in some embodiments of this application; Figure 9 This is a schematic diagram of the internal structure of the arc-shaped hydraulic cylinder according to some embodiments of this application; Figure 10 This is a schematic diagram of the internal structure of the transition cylinder in some embodiments of this application; Figure 11 Exploded views of the clamping mechanism and decompression mechanism in some embodiments of this application; Figure 12 This is a schematic diagram of the detection chamber and fixing block according to some embodiments of this application; Figure 13 This is a schematic diagram of the clamping mechanism and pressure relief mechanism in some embodiments of this application; Figure 14 This is a schematic diagram of the stabilization mechanism in some embodiments of this application; Figure 15 This is a schematic diagram of the structure of the telescopic bladder in some embodiments of this application; Figure 16 This is a top view of the detection chamber in some embodiments of this application; Figure 17 This is a schematic diagram of the protective mechanism according to some embodiments of this application.

[0020] in, Figures 1 to 17 The correspondence between the reference numerals and component names in the attached drawings is as follows: 100. Support mechanism; 110. Outer housing; 120. Support base; 130. Support platform; 140. Gear motor; 150. Limit seat; 160. Limit block; 200. Testing facility; 210. Testing chamber; 220. Testing table; 230. Testing pad; 240. Laser testing module; 300. Shifting mechanism; 310. Dual-axis motor; 320. Lead screw; 330. Guide column; 340. Moving seat; 350. Connecting frame; 360. Long support arm; 400 Clamping mechanism; 410 Fixed frame; 420 Mounting frame; 421 Round rod; 430 Rotating component; 440 Buffer pad; 450 Arc-shaped piston; 460 Arc-shaped oil cylinder; 470 Oil delivery pipe; 480 Transition cylinder; 490 Transition piston; 491 Through flow channel; 500, Pressure reducing mechanism; 510, Solenoid valve; 520, First pressure reducing cylinder; 530, Limiting rod; 540, Second pressure reducing cylinder; 550, Fixing block; 560, Top column; 600. Stabilizing mechanism; 610. Telescopic bladder; 620. Air supply pipe; 630. Air pump; 640. Air pressure detector; 700. Protective mechanism; 710. Short support arm; 720. Servo motor; 730. Protective plate; 800. Curved glass. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0023] The following reference Figures 1 to 17 This application describes an optical testing apparatus for the curvature of curved glass provided according to some embodiments.

[0024] like Figures 1 to 17As shown, the curved glass curvature optical testing device provided according to some embodiments of this application includes a support mechanism 100, a testing mechanism 200, a shifting mechanism 300, a clamping mechanism 400, a pressure-reducing mechanism 500, and a protective mechanism 700. The testing mechanism 200 is rotatably mounted on the support mechanism 100, and the curved glass 800 is placed on the testing stage 220 of the testing mechanism 200. The support mechanism 100 can rotatably drive the curved glass 800 to switch to an upright position for curvature testing. The shifting mechanism 300 is mounted on the testing stage 220. Two clamping mechanisms 400 are symmetrically mounted on the shifting mechanism 300. Each clamping mechanism 400 includes a rotatable rotating member 430, which can adaptively rotate according to the curvature of the outer wall of the curved glass 800 to fit together. When the curved glass 800 is tested in an upright position, the two rotating members 430 are aligned with the curved surface. The bottom walls on both sides of the glass 800 form a support; two pressure-reducing mechanisms 500 are correspondingly set on each clamping mechanism 400. Each pressure-reducing mechanism 500 can flexibly buffer the clamping pressure of the corresponding clamping mechanism 400 to avoid excessive clamping force causing extrusion deformation of the curved glass 800. Each pressure-reducing mechanism 500 has a built-in solenoid valve 510, which can lock the pressure state to fix the support angle of the rotating part 430; two protective mechanisms 700 are symmetrically set on the shifting mechanism 300. The protective mechanisms 700 are used to shield the top of the upright curved glass 800 to prevent it from falling when an abnormal upright position is received.

[0025] In this embodiment, initially, the detection platform 220 of the detection mechanism 200 is in a horizontal position. The curved glass 800 to be tested is placed on the detection platform 220. According to the size of the curved glass 800, the shifting mechanism 300 is driven to move. The shifting mechanism 300 synchronously drives the clamping mechanism 400, the pressure reducing mechanism 500, and the protective mechanism 700 on it to move together. During the movement, the rotating parts 430 of the two clamping mechanisms 400 gradually come into contact with the outer wall of the curved glass 800 and adaptively rotate to gradually come into contact with the glass surface, forming a clamp. At the same time, the pressure reducing mechanism 500 provides flexible buffering of the clamping pressure of the clamping mechanism 400 during this process to avoid excessive clamping force causing glass deformation. After the clamping force stabilizes, the solenoid valve 510 is activated to lock the pressure state, thereby fixing the support angle of the rotating part 430, ensuring that the curved glass is stably clamped without additional deformation. With the curved glass 800 fixed in position, the support mechanism 100 drives the testing mechanism 200 to rotate around its own axis, synchronously driving the curved glass 800 fixed on the testing platform 220 to rotate until the curved glass 800 switches to an upright position. At this time, the rotating component 430 continuously provides stable support to the bottom walls on both sides of the glass. The protective mechanism 700 senses the upright position of the glass in real time and is in a standby protective state. The upright position of the curved glass 800 maximizes the restoration of the actual surface shape of the glass. The curvature detection component of the testing mechanism 200 detects the curvature parameters of the curved glass 800. After completing the curvature detection, the testing mechanism 200 rotates in the opposite direction, driving the curved glass 800 to switch back to a horizontal position. The solenoid valve 510 unlocks, the clamping mechanism 400 releases its clamp on the curved glass 800 and resets. The staff removes the curved glass 800 after the test is completed, and the entire testing process is completed.

[0026] In some possible embodiments, such as Figures 2 to 6 As shown, the support mechanism 100 includes: an outer housing 110; four support seats 120 symmetrically arranged inside the outer housing 110, each support seat 120 having a rotatable roller mounted on it; two support platforms 130 symmetrically arranged on the two side walls of the outer housing 110; a reduction motor 140 mounted on one support platform 130; a limiting seat 150 mounted on the other support platform 130; and a limiting block 160 abutting against the limiting seat 150. The detection mechanism 200 includes: a detection chamber 210, one end of which is connected to the output shaft of the reduction motor 140, and the other end is fixedly connected to the limiting block 160, with the outer wall of the detection chamber 210 abutting against the roller on each support seat 120; a detection pad 230 laid on the detection platform 220 of the detection chamber 210, the detection pad 230 being made of a non-reflective material; and a laser detection module 240 mounted on the inner top wall of the detection chamber 210.

[0027] In this embodiment, initially, the testing platform 220 of the testing mechanism 200 is in a horizontal position. After the equipment completes the pre-operations such as displacement adaptation and clamping fixation, it enters the vertical switching stage. The reduction motor 140 drives the testing chamber 210 to rotate. At this time, the limiting block 160 at the other end of the testing chamber 210 rotates synchronously. Simultaneously, the rolling wheels on the four support seats 120 on the outer wall of the testing chamber 210 rotate synchronously with the rotation of the testing chamber 210, converting sliding friction into rolling friction, greatly reducing rotational resistance, and ensuring that the testing chamber 210 rotates smoothly without shaking or deviation. This causes the curved glass 800 placed on the testing pad 230 to rotate synchronously by less than 90°, switching to the vertical state. At this time, the curved glass 800 is in a state of leaning against the testing platform 220 of the testing mechanism 200, avoiding the glass from rotating by 90°. When the glass 800 falls outwards, the limiting structure on the limiting seat 150 can restrict the detection chamber 210 from continuing to rotate, preventing excessive rotation from causing the curved glass 800 to fall outwards due to loss of support. The reduction motor 140 stops power output, and the curved glass 800 is stably in a tilted upright state. The laser detection module 240 emits a detection laser, which shines on the surface of the curved glass 800. After being reflected by the curved glass 800, the laser is received by the signal receiver built into the module. The laser detection module 240 collects the optical signal of the reflected laser in real time and captures the contour and curvature related data of the curved glass 800. After the detection is completed, the reduction motor 140 starts in reverse and outputs reverse rotation power to drive the detection chamber 210 to rotate in the opposite direction. The limiting effect of the limiting seat 150 and the limiting block 160 can reset the detection chamber 210 to a horizontal state.

[0028] In some possible embodiments, such as Figure 6 , Figure 7 As shown, the shifting mechanism 300 includes: a dual-axis motor 310, disposed inside the detection chamber 210; two lead screws 320, symmetrically disposed on both sides of the dual-axis motor 310 and connected to the output shaft of the dual-axis motor 310; guide posts 330, symmetrically disposed inside the detection chamber 210 with respect to the lead screws 320; four movable seats 340, respectively sleeved on each lead screw 320 or guide post 330, and slidable along the lead screw 320 and guide post 330; two connecting frames 350, respectively horizontally placed on the two movable seats 340 on the corresponding sides; and two long support arms 360, symmetrically disposed on the corresponding connecting frames 350.

[0029] In this embodiment, the dual-axis motor 310 drives the lead screws 320 on both sides to rotate synchronously. Since the movable seat 340 is sleeved on the lead screw 320 or guide post 330, the rotational power of the lead screw 320 is converted into linear power, driving the four movable seats 340 to slide synchronously along the lead screw 320 or guide post 330. Depending on the glass size, the two lead screws 320 can rotate synchronously, causing the movable seats 340 on both sides to move closer or further apart, adjusting the overall position. When the movable seat 340 slides, it synchronously drives the connecting frame 350 and the long support arm 360 on it to move synchronously. The clamping mechanism 400 at the end of the long support arm 360 moves synchronously until... The two clamping mechanisms 400 move to the preset positions corresponding to the bottom walls on both sides of the curved glass 800 to be tested. The rotating part 430 of the clamping mechanism 400 can correspond to the outer side wall of the curved glass 800. During this process, the guide post 330 always provides guidance and limit for the moving seat 340 to ensure that the moving seat 340 moves smoothly along a straight line. When the shifting mechanism 300 drives the clamping mechanism 400 to move to the preset matching position, the dual-axis motor 310 stops working and fixes the position of the moving seat 340. After the test is completed, the dual-axis motor 310 drives the lead screw 320 to rotate in the opposite direction, driving the connecting frame 350 and the long support arm 360 to move and reset.

[0030] In some possible embodiments, such as Figures 8 to 13As shown, each clamping mechanism 400 includes: a fixed frame 410, disposed at the end of the long support arm 360 away from the connecting frame 350, the fixed frame 410 having a cylindrical inner cavity; a mounting frame 420, disposed at the end of the fixed frame 410 away from the long support arm 360, the mounting frame 420 having a protruding round rod 421 on the side near the fixed frame 410, the round rod 421 being able to slide within the cylindrical inner cavity of the fixed frame 410; a rotating member 430, rotatably connected to the mounting frame 420; a buffer pad 440, disposed on the rotating member 430; an arc-shaped piston 450, fixedly connected to the rotating member 430; an arc-shaped cylinder 460, fixedly connected to the mounting frame 420, the end of the arc-shaped piston 450 away from the rotating member 430 extending into the inner cavity of the arc-shaped cylinder 460; an oil supply pipe 470, one end of which communicates with the end of the arc-shaped cylinder 460 away from the arc-shaped piston 450; and a transition cylinder 480, fixedly disposed on the mounting frame 420 and connected to the mounting frame 420. The other end of the oil pipe 470 is connected; the transition piston 490, one end of which is built into the cavity of the transition cylinder 480 and fixedly connected to the fixing frame 410, and the transition piston 490 has a through flow channel 491 inside; each pressure reducing mechanism 500 includes: a solenoid valve 510, which is disposed on the transition piston 490; a first pressure reducing cylinder 520, which is disposed on the side of the transition piston 490 away from the transition cylinder 480, and the cavities of the two are connected to each other; a second pressure reducing cylinder 540, which is slidably sleeved on the outside of the first pressure reducing cylinder 520 and can slide along the axial direction of the first pressure reducing cylinder 520; two limit rods 530, which are symmetrically disposed on the outer wall of the first pressure reducing cylinder 520, and the second pressure reducing cylinder 540 can slide along the two limit rods 530; a fixing block 550, which is fixedly disposed on the detection table 220 of the detection chamber 210; and a top column 560, which is fixedly disposed on the fixing block 550 and can abut against the side wall of the second pressure reducing cylinder 540 away from the first pressure reducing cylinder 520.

[0031] In this embodiment, initially, the rotating component 430 is horizontal, the transition piston 490 is at the initial position of the transition cylinder 480, and the two clamping mechanisms 400 are in a state of separation from each other along with the shifting mechanism 300. The operator places the curved glass 800 to be tested on the testing pad 230 of the testing chamber 210, and starts the shifting mechanism 300 to drive the long support arm 360 to move synchronously. The clamping mechanism 400 and the pressure reducing mechanism 500 move with the long support arm 360, gradually approaching the two bottom walls of the curved glass 800. First, the rotating component 430 contacts the outer wall of the glass in a horizontal state through the buffer pad 440. As the shifting mechanism 300 continues to advance, the rotating component 430 is subjected to the reaction force of the outer wall of the glass and begins to rotate around the mounting bracket 420. The angle is adaptively adjusted until the buffer pad 440 on the surface of the rotating component 430 is completely in contact with the outer wall of the glass, achieving initial support for the bottom walls on both sides of the glass. During this process, the rotation of the rotating component 430 drives the arc-shaped piston 450 to rotate synchronously. The arc-shaped piston 450 slides in the inner cavity of the arc-shaped oil cylinder 460, squeezing the hydraulic oil in the arc-shaped oil cylinder 460. The squeezed hydraulic oil is transported to the transition cylinder 480 through the oil supply pipe 470. The shifting mechanism 300 continues to push the long support arm 360 to move. At this time, the rotating component 430 has abutted against the outer wall of the glass and cannot continue to move towards the glass. The subsequent pushing of the long support arm 360 drives the fixing frame 410 to continue to move forward. The round rod 421 on the mounting frame 420 moves slowly along the cylindrical inner cavity of the fixing frame 410. To avoid the thrust being directly transmitted to the rotating component 430 and causing excessive clamping force on the glass, the mounting bracket 420 and the fixed bracket 410 move relative to each other. The fixed bracket 410 drives the transition piston 490 to slide towards the transition cylinder 480. The transition piston 490 squeezes the hydraulic oil in the transition cylinder 480. The hydraulic oil enters the first pressure reducing cylinder 520 through the through flow channel 491 inside the transition piston 490. As the hydraulic oil continues to enter, the second pressure reducing cylinder 540 is pushed by the hydraulic oil and moves slowly along the outer wall of the first pressure reducing cylinder 520 and under the guidance of the limit rod 530. The excessive thrust generated by the continued feeding of the displacement mechanism 300 is consumed and offset by pushing the transition piston 490 to squeeze the hydraulic oil and driving the second pressure reducing cylinder 540 to move, and is no longer transmitted to the rotating component. Between the rotating component 430 and the glass, under the throttling damping effect of the through-flow channel 491, the clamping force on the glass remains constant and does not increase with the feed of the shifting mechanism 300, thus preventing the glass from being squeezed and deformed. After ensuring that the contact surface of the rotating component 430 is completely in contact with the outer wall of the glass, the solenoid valve 510 is closed, locking the through-flow channel 491 of the hydraulic oil, so that the hydraulic oil in the first pressure reducing cylinder 520, the transition cylinder 480, and the arc-shaped cylinder 460 maintains a stable pressure state. The stable hydraulic oil pressure fixes the position of the transition piston 490 and the arc-shaped piston 450, thereby fixing the support angle of the rotating component 430, ensuring that the rotating component 430 is always in contact with the bottom walls on both sides of the glass. Subsequently, the detection mechanism 200 starts the detection, driving the detection chamber 210 to rotate less than 90°.The locking state of the clamping mechanism 400 and the pressure-reducing mechanism 500 ensures the stability of the glass posture. After the curvature detection of the curved glass 800 is completed, the detection chamber 210 is reset to a horizontal state, the solenoid valve 510 is opened, the locking state of the hydraulic oil is released, and the shifting mechanism 300 moves in the reverse direction, driving the clamping mechanism 400 and the pressure-reducing mechanism 500 to reset synchronously away from the glass. As the shifting mechanism 300 continues to move, the second pressure-reducing cylinder 540 gradually approaches the top column 560 on the initial position fixing block 550. The top column 560 provides a reverse pushing force to the second pressure-reducing cylinder 540, pushing the second pressure-reducing cylinder 540 to reset to the initial position along the outer wall of the first pressure-reducing cylinder 520, compressing... The hydraulic oil in the first pressure-reducing cylinder 520 flows back to the transition cylinder 480 through the through-flow channel 491. Due to the small diameter of the oil supply pipe 470, throttling damping is formed. The hydraulic oil first pushes the transition cylinder 480 and the transition piston 490 to move. The transition piston 490 drives the mounting bracket 420 to move, causing the round rod 421 to extend and reset relative to the fixed bracket 410. After the mounting bracket 420 and the fixed bracket 410 are reset, the hydraulic oil flows back to the arc-shaped cylinder 460 through the oil supply pipe 470. The hydraulic oil pushes the arc-shaped piston 450 to slide in the opposite direction, driving the rotating part 430 to rotate and reset synchronously. Finally, the shifting mechanism 300, the clamping mechanism 400, and the pressure-reducing mechanism 500 are all reset to their positions.

[0032] It should be noted that the rotating part 430 does not need to be precisely reset to the initial fixed posture. It only needs to be loosened and cleared to make way for the glass to be picked up and put in. A small reset deviation will not affect subsequent repeated clamping operations. The rotating part 430 can still adaptively rotate and fit according to the 800° curvature of the curved glass during the next clamping.

[0033] In some possible embodiments, such as Figure 16 , Figure 17 As shown, each protective mechanism 700 includes: a short support arm 710, mounted on a connecting frame 350; a servo motor 720, mounted on the short support arm 710; and a protective plate 730, which is connected to the output shaft of the servo motor 720. The height of the protective plate 730 is higher than the height of the curved glass 800.

[0034] In this embodiment, in the initial state, the protective disk 730 rotates to the standby position, i.e., the state of avoiding obstruction of the curved glass 800, so as not to affect the detection. During the detection, the protective mechanism 700 moves with the connecting frame 350 to the corresponding protective position of the curved glass 800. The detection chamber 210 drives the curved glass 800 to rotate to the upright position. The sensor monitors the upright position of the glass. If an unexpected situation occurs during the monitoring process, causing the curved glass 800 to have a tendency to tilt outward, the sensor sends a signal, the servo motor 720 starts, and the servo motor 720 drives the protective disk 730 to rotate quickly, switching from the standby position to the protective position. Because the height of the protective disk 730 is higher than that of the glass, it can quickly cover the top and outer edge of the glass, preventing the glass from continuing to tilt outward and fall and break.

[0035] In some possible embodiments, such as Figure 14 , Figure 15 As shown, it also includes a stabilizing mechanism 600, which is used to assist in fixing the curved glass 800 in an upright position. The stabilizing mechanism 600 includes: a telescopic bladder 610, which is set in the central area of ​​the detection chamber 210; an air supply pipe 620, one end of which is connected to the telescopic bladder 610; an air pump 630, which is fixedly set on the bottom wall of the detection chamber 210 and connected to the other end of the air supply pipe 620; and an air pressure detector 640, which is set on the telescopic bladder 610.

[0036] In this embodiment, after the curved glass 800 is placed, it flexibly fits against the telescopic bladder 610 to form a sealed cavity. At this time, the air pump 630 is activated to draw gas from the cavity of the telescopic bladder 610, which is then delivered by the air supply pipe 620. This creates a weak adsorption force between the telescopic bladder 610 and the inner wall of the curved glass 800, which helps to fix the glass in its upright position without causing compression or deformation. This further eliminates the risk of displacement or tipping and provides a stable guarantee for curvature detection. If the curved glass 800 shifts or tipps, the sealed cavity between the telescopic bladder 610 and the glass is broken, and the air pressure rises sharply. The air pressure detector 640 detects this signal and transmits it to the protective mechanism 700 to protect the curved glass 800 and prevent it from falling.

[0037] In some possible embodiments, the device is also equipped with sensors for monitoring the upright position of the curved glass 800.

[0038] In this embodiment, the sensor enables non-contact, continuous monitoring of the curved glass 800 in its upright position. It can accurately capture the tendency of the glass to tip over due to loose clamping, slight shaking of the equipment, or rotational deviation of the testing chamber 210. Compared with traditional manual observation or delayed protection, it can provide early warning and instant triggering. Combined with the servo motor 720 and protective plate 730 of the protective mechanism 700, it can quickly protect the curved glass 800 and prevent it from tipping over or falling and breaking during the upright testing process, thus significantly reducing product loss during the testing process.

[0039] In operation, the curved glass curvature optical testing equipment initially positions the testing chamber 210 horizontally, with the testing pad 230 laid flat on the testing table 220. The shifting mechanism 300 drives the clamping mechanism 400 and the protective mechanism 700 to be in a state of mutual separation. The operator places the curved glass 800 to be tested on the testing pad 230 in the testing chamber 210. Based on the glass size, the equipment control system instructs the shifting mechanism 300 to start, and the dual-axis motor 310 drives the lead screws 320 on both sides to rotate synchronously, converting rotational power into linear power. This causes the four moving seats 340 to slide synchronously along the lead screws 320 or guide posts 330, thereby causing the connecting frame 350, long support arm 360, and short support arm 710 to move synchronously. The clamping mechanism 400 and the pressure reducing mechanism 710 also move synchronously. Both mechanism 500 and protective mechanism 700 move with displacement mechanism 300. At this time, rotating component 430 is advanced with displacement mechanism 300, and contacts the outer wall of glass through buffer pad 440. Under the reaction force of glass, it self-rotates around mounting bracket 420 until buffer pad 440 completely fits the outer wall of glass, forming initial support for the bottom walls on both sides of glass. During this process, rotating component 430 drives arc piston 450 to slide in arc cylinder 460, squeezing hydraulic oil and sending it into transition cylinder 480 through oil pipe 470. Displacement mechanism 300 continues to advance, rotating component 430 can no longer move, long support arm 360 pushes fixed bracket 410 to move, round rod 421 slides along the inner cavity of fixed bracket 410, squeezing hydraulic oil in transition cylinder 480 through through flow channel 491. The first pressure-reducing cylinder 520 is inserted, and the second pressure-reducing cylinder 540 slides along the first pressure-reducing cylinder 520 and the limit rod 530 under the thrust of hydraulic oil, converting the excessive thrust of the displacement mechanism 300 into displacement to achieve offset. Under the throttling damping effect of the through flow channel 491, the clamping force is kept constant to avoid glass extrusion deformation. After the rotating part 430 is completely in contact with the outer wall of the glass, the solenoid valve 510 of the pressure-reducing mechanism 500 is closed to lock the flow of hydraulic oil, fix the position of the transition piston 490 and the arc piston 450, and then fix the support angle of the rotating part 430 to ensure stable clamping of the glass without extrusion deformation. After the clamping and locking is completed, the support mechanism 100 and the detection mechanism 200 start the vertical switching action, and the reduction motor 140 drives the detection chamber 210 to rotate around its own axis. As the glass rotates, the outer wall of the detection chamber 210 and the rolling wheels on the support base 120 rotate synchronously, causing the glass to rotate less than 90°. This causes the glass to tilt backward under its own weight, with its top flexibly resting against the inner wall of the detection chamber 210, forming a stable tilted upright position. Simultaneously, when the curved glass 800 is placed on top of the telescopic bladder 610, the bladder 610 is compressed and deformed, forming a closed cavity. The air pump 630 draws gas from this closed cavity, creating a slight negative pressure, which in turn generates a slight adsorption force on the curved glass 800. The air pressure detector 640 monitors the air pressure in real time, ensuring it remains stable at a preset low-pressure threshold, forming a weak adsorption force to help fix the glass and prevent deformation. After the glass is stabilized, the sensor monitors the glass's upright posture in real time.If the glass shows a tendency to tilt outwards during the inspection, the air pressure inside the telescopic bladder 610 increases. The attitude monitoring sensor and air pressure detector 640 perform dual monitoring; if either sensor detects an anomaly, the protective mechanism 700 is triggered. The servo motor 720 quickly drives the protective disc 730 to rotate to the protective position, preventing the glass from falling. During inspection, the laser detection module 240 emits a detection laser to irradiate the glass surface. The reflected laser is received by the signal receiver, and real-time data on the glass contour and curvature are collected. After the curvature detection is completed, each mechanism resets sequentially. First, the laser detection module 240 stops, and the reduction motor 140 reverses and drives the inspection chamber 210 to rotate in the opposite direction to reset to a horizontal position. After the pressure is released, the stabilizing mechanism 600 releases the negative pressure adsorption, allowing outside air to enter the sealed cavity of the telescopic bladder 610 to restore normal pressure. The telescopic bladder 610 returns to its natural thickness and rebounds to its original position. The air pump 630 stops, the solenoid valve 510 of the pressure reducing mechanism 500 opens, releasing the hydraulic oil lock. The shifting mechanism 300 starts in reverse, driving the connecting frame 350, long support arm 360, and short support arm 710 to move in the opposite direction. The second pressure reducing cylinder 540 contacts the top column 560 and resets under its thrust, squeezing the hydraulic oil back to the arc-shaped cylinder 460, driving the arc-shaped piston 450 and rotating part 430 to reset to their positions. The operator removes the inspected glass, completing one full work cycle.

[0040] In this application, it should be noted that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this application.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0042] In this application, unless otherwise expressly specified and limited, the terms "installation" and "connection" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. The term "multiple" refers to two or more, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0043] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0044] In this application, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0045] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An optical testing device for the curvature of curved glass, characterized in that, include: Supporting institutions; The testing mechanism is rotatably mounted on the support mechanism. The curved glass is placed on the testing table of the testing mechanism. The support mechanism can rotate to drive the curved glass to switch to an upright position for curvature testing. A shifting mechanism is provided on the detection platform; Two clamping mechanisms are symmetrically arranged on the displacement mechanism. Each clamping mechanism includes a rotating component that can adaptively rotate according to the curvature of the outer wall of the curved glass. When the curved glass is in an upright position, the two rotating components support the bottom walls on both sides of the curved glass. Two pressure-reducing mechanisms are respectively set on each of the clamping mechanisms. Each pressure-reducing mechanism can flexibly buffer the clamping pressure of the corresponding clamping mechanism. Each pressure-reducing mechanism has a built-in solenoid valve, which can lock the pressure state to fix the support angle of the rotating part. Two protective mechanisms are symmetrically arranged on the displacement mechanism. The protective mechanisms are used to block the top of the upright curved glass when an abnormal signal of the upright state is received.

2. The curved glass curvature optical testing device according to claim 1, characterized in that, The supporting structure includes: outer box; Four support bases are symmetrically arranged inside the outer casing, and each support base is rotatably mounted with a rolling wheel. Two support platforms are symmetrically arranged on the two side walls of the outer casing; A geared motor is mounted on one of the aforementioned support platforms; A limiting seat is mounted on another support platform; The limiting block abuts against the limiting seat.

3. The curved glass curvature optical testing device according to claim 2, characterized in that, The testing institutions include: The detection chamber is connected to the output shaft of the geared motor at one end and to the limiting block at the other end. The outer wall of the detection chamber abuts against the rolling wheel on each of the support seats. A testing pad is laid on the testing platform of the testing chamber; The laser detection module is located on the inner top wall of the detection chamber.

4. The curved glass curvature optical testing device according to claim 3, characterized in that, The shifting mechanism includes: A dual-axis motor is installed inside the testing chamber; Two lead screws are symmetrically arranged on both sides of the dual-axis motor and are connected to the output shaft of the dual-axis motor for transmission. Guide posts are symmetrically arranged inside the detection chamber with the lead screw; Four movable seats are respectively sleeved on each of the lead screws or guide posts, and can slide along the lead screws and guide posts; Two connecting frames are respectively placed horizontally on the two movable seats on the corresponding sides; Two long support arms are symmetrically arranged on the corresponding connecting frame.

5. The curved glass curvature optical testing device according to claim 4, characterized in that, Each of the clamping mechanisms includes: A fixing frame is provided at the end of the long support arm away from the connecting frame, and the fixing frame has a cylindrical inner cavity inside; A mounting bracket is disposed at the end of the fixed frame away from the long support arm. A round rod protrudes from the side of the mounting bracket near the fixed frame, and the round rod can slide within the cylindrical inner cavity of the fixed frame. A rotating component is rotatably connected to the mounting bracket. A buffer pad is provided on the rotating component; An arc-shaped piston is fixedly connected to the rotating component; An arc-shaped hydraulic cylinder is fixedly connected to the mounting bracket, and one end of the arc-shaped piston away from the rotating component extends into the inner cavity of the arc-shaped hydraulic cylinder; One end of the oil supply pipe is connected to the end of the arc-shaped oil cylinder away from the arc-shaped piston; A transition cylinder is fixedly mounted on the mounting bracket and connected to the other end of the oil supply pipe; The transition piston has one end built into the inner cavity of the transition cylinder and is fixedly connected to the fixed frame. The transition piston has a through flow channel inside.

6. The curved glass curvature optical testing device according to claim 5, characterized in that, Each of the aforementioned pressure-reducing mechanisms includes: A solenoid valve is mounted on the transition piston; The first pressure-reducing cylinder is located on the side of the transition piston away from the transition cylinder, and the inner cavities of the two are in communication with each other; The second pressure-reducing cylinder is slidably sleeved on the outside of the first pressure-reducing cylinder and can slide along the axial direction of the first pressure-reducing cylinder. Two limiting rods are symmetrically arranged on the outer wall of the first pressure-reducing cylinder, and the second pressure-reducing cylinder can slide along the two limiting rods; A fixing block is fixedly installed on the testing platform of the testing chamber; The top column is fixedly mounted on the fixed block and can abut against the side wall of the second pressure-reducing cylinder away from the first pressure-reducing cylinder.

7. The curved glass curvature optical testing device according to claim 4, characterized in that, Each of the aforementioned protective mechanisms includes: A short support arm is mounted on the connecting frame; A servo motor is mounted on the short support arm; The protective plate is connected to the output shaft of the servo motor via a transmission.

8. The curved glass curvature optical testing device according to claim 3, characterized in that, It also includes a stabilizing mechanism, which is used to assist in fixing the curved glass in its upright position, including: A telescopic bladder is located in the central area of ​​the detection chamber; The gas delivery tube is connected at one end to the telescopic bladder; An air pump is fixedly installed on the bottom wall of the testing chamber and connected to the other end of the air supply pipe; A pressure detector is installed on the telescopic bladder.

9. The curved glass curvature optical testing device according to claim 7, characterized in that, The height of the protective plate is higher than the height of the curved glass.

10. The curved glass curvature optical testing device according to any one of claims 1 to 9, characterized in that, The device is also equipped with sensors for monitoring the upright position of the curved glass.

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