A measuring device for glass warpage

Abstract

The application relates to the technical field of glass processing detection, in particular to a glass warping deformation amount measuring device. The device comprises a rack, a conveying structure arranged on the rack, an equal force lifting mechanism arranged on the conveying structure, and a measuring assembly arranged on the rack. The equal force lifting mechanism comprises a lifting assembly, the lifting assembly comprises a fixed shell, a lifting shell is slidably connected in the fixed shell, a sliding shell is slidably connected in the lifting shell, a gas injection pipe is fixedly connected in the sliding shell, a lifting rod is slidably connected in the sliding shell, a lifting head is slidably connected to the lifting rod, a communication cylinder is fixedly connected to the lifting shell, and the communication cylinder is communicated with the sliding shell. The application synchronously injects isobaric gas into the communication cylinder through the lifting rods, triggers the locking assembly to lock the current height after the lifting heads contact the glass, makes the gas pressure equal to the supporting force when each lifting point is locked, solves the problem that additional deformation is caused by uneven distribution of the supporting force due to different warping degrees, makes the glass always in a natural state, and makes the warping measurement result real and reliable.

Description

Technical Field

[0001] This invention relates to the field of glass processing and testing technology, and in particular to a device for measuring the amount of glass warpage. Background Technology

[0002] Measuring glass warpage is a core process in the quality inspection of products such as flat glass and display substrate glass. Flat measuring devices are commonly used, which support the glass through a bottom support structure and collect the height data of the glass surface with the scanning and detection mechanism above to calculate the warpage. It is a key piece of equipment for controlling the flatness of glass.

[0003] Patent CN217331063U discloses a TFT-LCD liquid crystal glass substrate warpage detection mechanism, including an air-bearing frame and a glass substrate placed on top of the air-bearing frame. The air-bearing frame includes a bottom support frame and support columns. A first mounting plate is fixedly mounted on the top surface of the support columns, and air-bearing strips are evenly distributed on the top surface of the first mounting plate. The glass substrate is placed on top of the air-bearing frame, and the glass substrate is suspended and supported by gas ejected from the air-bearing strips. A first test frame and a second test frame scan the glass substrate from a direction parallel to the glass substrate to obtain the warpage height result of the entire glass substrate.

[0004] However, the aforementioned air-supported structure still has shortcomings. Because the air film pressure emitted by the air-supported strips is significantly affected by fluctuations in the air supply, uneven pressure distribution due to differences in the distance between the glass warping area and the air-supported strips can easily cause additional deformation of the glass. Simultaneously, the air-supported frame lacks horizontal constraint on the glass, making it prone to horizontal deviation during measurement due to vibration or airflow disturbances. Furthermore, the reference surface of each air-supported strip depends on installation accuracy, and accumulated errors make it difficult to guarantee the consistency of the bearing surface height. Summary of the Invention

[0005] To overcome the shortcomings of air-float warp detection devices, such as uneven air film pressure distribution leading to additional glass deformation, lack of horizontal stability constraints, and poor consistency of reference surfaces of each air float, this invention provides a device for measuring the amount of glass warp deformation.

[0006] A device for measuring the warpage deformation of glass includes a frame, a conveying structure mounted on the frame, and force-equalizing lifting mechanisms staggered with the conveying structure on the frame. The force-equalizing lifting mechanisms are used to uniformly lift the glass. A lateral stabilizing component is disposed within the force-equalizing lifting mechanism for positioning both sides of the glass. A measuring component is mounted on the frame for measuring the deformation of the glass surface. A synchronous lifting component is disposed between the force-equalizing lifting mechanism and the measuring component to ensure the glass height is stable during measurement.

[0007] The force-equalizing lifting mechanism includes a lifting component, a self-locking component, and an adjusting component. The lifting component is used to lift the glass upwards. The lifting component includes a fixed shell, which is fixedly connected to the frame. A lifting shell is slidably connected inside the fixed shell. A uniformly distributed sliding shell is slidably connected inside the lifting shell. A uniformly distributed air injection pipe is fixedly connected and connected inside the sliding shell. A lifting rod is slidably connected inside the sliding shell. The lifting rod and the air injection pipe are sealed together. A lifting head is slidably connected to the top of the lifting rod. An elastic element is provided between the lifting head and the lifting rod. A connecting cylinder is fixedly connected to the lifting shell and communicates with the sliding shell. The connecting cylinder is provided with an air pressure supply device.

[0008] Furthermore, the lifting head includes an integrally formed or fixedly connected head and middle part. The head is hemispherical, and the middle part is a cylindrical part with concave sides, forming an annular step between the concave side and the head.

[0009] Furthermore, the lifting head is equipped with an elastic positioning sleeve made of polyurethane material and coated with a coating to reduce the static friction coefficient between the lifting head and the glass.

[0010] Furthermore, the self-locking assembly includes symmetrically distributed trigger rods, which are slidably connected to the lifting rod and engage with the lifting head. An elastic element is provided between the trigger rod and the lifting rod. Symmetrically distributed locking wedges are slidably connected inside the lifting rod, and an elastic element is provided between the symmetrically distributed locking wedges. The locking wedges are in a limiting sliding engagement with the trigger rods. The air injection pipe is slidably connected to symmetrically distributed locking racks, and an elastic element is provided between the symmetrically distributed locking racks. The locking racks are in a limiting sliding engagement with adjacent locking wedges.

[0011] Furthermore, the adjustment assembly includes an adjustment gear rotatably connected to the lifting head, and symmetrically distributed adjustment rods rotatably connected to the lifting head. The adjustment rods mesh with the adjustment gear, and a trigger baffle is slidably connected to the lifting head. The trigger baffle is threadedly engaged with the adjustment rods, and the trigger baffle makes a limiting contact with the trigger rods.

[0012] Furthermore, the lateral stabilization component includes a positioning lead screw shaft, which is rotatably connected to the lifting housing. The lifting housing is equipped with a lead screw motor, the output end of which is driven by the positioning lead screw shaft. A lead screw sliding seat is slidably connected inside the sliding housing. The lead screw sliding seat is engaged with the positioning lead screw shaft through a lead screw pair. An elastic element is provided between the lead screw sliding seat and the sliding housing. The lead screw sliding seat is slidably engaged with the air injection pipe and is slidably engaged with adjacent symmetrically distributed locking racks.

[0013] Furthermore, the measuring component includes an isolation shell slidably connected to the frame, a horizontally moving structure is provided inside the isolation shell, an optical measuring structure is mounted on the horizontally moving structure, the optical measuring structure is used to measure the deformation of the glass surface, and a dustproof shell is provided on the outside of the optical measuring structure.

[0014] Furthermore, the isolation shell is an annular enclosure structure, and the circumferential enclosure structure of the isolation shell is made of opaque material. A sealing edge is provided on the side of the isolation shell near the frame, and a sealing protrusion is provided on the frame corresponding to the sealing edge. The sealing edge and the sealing protrusion contact and cooperate with each other, and the isolation shell, the sealing edge, and the sealing protrusion cooperate to form a light-shielding space.

[0015] Furthermore, a uniformly arranged supplementary lighting structure is provided on the side of the dustproof shell away from the frame. The light emitted by the supplementary lighting structure is reflected or diffused by the inner wall of the isolation shell and then uniformly illuminates the upper surface of the glass, thereby improving the image contrast and clarity of the optical measurement structure during measurement.

[0016] Furthermore, the synchronous lifting assembly includes a lifting rack, which is fixedly connected to the lifting housing. A transmission rod is rotatably connected inside the fixed housing, and a synchronization rod is slidably connected inside the fixed housing. The synchronization rod is fixedly connected to the isolation housing. Gears are provided at both ends of the transmission rod, and the transmission rod, the lifting rack, and the synchronization rod are all engaged through gear and rack transmission.

[0017] The beneficial effects of this invention are as follows: This invention injects equal-pressure gas synchronously into each lifting rod through a unified connecting cylinder. After each lifting head contacts the glass, it pushes the trigger rod to drive the locking wedge and locking rack to move, automatically locking the current height. This ensures that the air pressure and support force are equal when each lifting point is locked, solving the problem of additional deformation caused by uneven distribution of support force due to different degrees of warping. This keeps the glass in a natural state, and the warping measurement results are true and reliable.

[0018] The positioning screw shaft is driven to rotate by the screw motor, which drives the screw sliding seat to slide along the air injection pipe so that each lifting head retracts synchronously towards the middle, forming a clamping and stabilizing effect on the front and rear sides of the glass. This prevents the glass from shifting horizontally due to vibration or airflow disturbance during measurement, and significantly improves the repeatability and accuracy of the measurement results.

[0019] By installing all the lifting heads on the same lifting shell, the initial height is uniformly guaranteed by the lifting shell, eliminating the need for individual adjustments; rotating the adjusting gear drives the adjusting rod to rotate and push the trigger baffle to move, allowing the trigger rod's trigger stroke to be changed with one click, adapting to glass of different thicknesses and specifications, making adjustment convenient and efficient;

[0020] The isolation shell descends with the measurement mounting plate to form a sealed light-shielding space with the frame, isolating external stray light interference; the supplementary lighting structure on the dustproof shell emits light that is reflected by the inner wall of the isolation shell and evenly illuminates the upper surface of the glass, providing stable and uniform lighting conditions for optical measurement, improving image contrast and clarity, and ensuring reliable measurement data.

[0021] Through the gear and rack transmission of the lifting rack, transmission rod and synchronizing rod, the lifting shell rises to lift the glass while the isolation shell descends simultaneously to cover it. The load positioning and measurement preparation are completed in one action, reducing process waiting time and improving overall inspection efficiency. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0023] Figure 2 This is a partial three-dimensional structural cross-sectional view of the present invention.

[0024] Figure 3 This is a three-dimensional cross-sectional view of the fixing shell of the present invention.

[0025] Figure 4 This is a three-dimensional cross-sectional view of the lifting component of the present invention.

[0026] Figure 5 This is a three-dimensional cross-sectional view of the lifting rod and the lifting head of the present invention.

[0027] Figure 6 This is a three-dimensional cross-sectional view of the lifting rod and air injection pipe of the present invention.

[0028] Figure 7 This is a three-dimensional cross-sectional view of the lateral stabilization component of the present invention.

[0029] Figure 8 This is a three-dimensional cross-sectional view of the isolation shell and synchronous lifting assembly of the present invention.

[0030] In the above attached diagrams: 1: Frame, 2: Conveying structure, 3: Force-equalizing lifting mechanism, 31: Lifting component, 311: Fixed shell, 312: Lifting shell, 313: Sliding shell, 314: Air injection pipe, 315: Lifting rod, 316: Lifting head, 317: Connecting cylinder, 318: Air pressure supply device, 319: Elastic positioning sleeve, 32: Self-locking component, 321: Trigger rod, 322: Locking wedge, 323: Locking rack, 33: Adjusting component, 331: Adjusting gear 332: Adjusting rod; 333: Trigger baffle; 4: Lateral stabilizing component; 401: Positioning screw shaft; 402: Screw motor; 403: Screw sliding seat; 5: Measuring component; 501: Isolation shell; 502: Horizontal movement structure; 503: Optical measuring structure; 504: Dustproof shell; 505: Sealing edge; 506: Sealing protrusion; 6: Complementary lighting structure; 7: Synchronous lifting component; 701: Lifting rack; 702: Transmission rod; 703: Synchronizing rod. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example 1

[0033] A device for measuring the amount of glass warpage, such as Figure 1-8As shown, the system includes a frame 1, a conveying structure 2 mounted on the frame 1, and force-equalizing lifting mechanisms 3 arranged alternately with the conveying structure 2 on the frame 1. The force-equalizing lifting mechanisms 3 are used to uniformly lift the glass. Each force-equalizing lifting mechanism 3 includes a lifting component 31, a self-locking component 32, and an adjusting component 33. The lifting component 31 is used to lift the glass upwards and includes components fixed to the frame 1. The system includes a fixed housing 311, within which a lifting housing 312 is slidably connected. Within the lifting housing 312, several sliding housings 313 are slidably connected, evenly distributed within the lifting housing 312. Each sliding housing 313 is fixedly connected to and connected to a uniformly distributed gas injection pipe 314. A lifting rod 315 is slidably connected within each sliding housing 313, with a sealed fit between the lifting rod 315 and the gas injection pipe 314. The gas distribution within the lifting rod 315 is controlled by the gas injection pipe 314, thereby causing the lifting rod 315 to move up and down. A lifting head 316 is slidably connected to the top of the lifting rod 315. The lifting head 316 includes an integrally formed or fixedly connected head and middle section. The head is hemispherical, and the middle section is a cylindrical section with concave sides. An annular step is formed between the concave side and the head. The hemispherical head of the lifting head 316 is used to form a point with the lower surface of the glass. To reduce contact area and friction, the concave cylindrical center of the lifting head 316 is used to form a fitting and positioning fit with the glass side edge, providing stable constraint on the glass in the horizontal direction. An elastic element, which is a spring, is provided between the lifting head 316 and the lifting rod 315 to keep the lifting head 316 in an extended position relative to the lifting rod 315 when not in contact, thus avoiding rigid impact damage to the glass. A connecting cylinder 317 is fixedly connected to the lifting shell 312, and the connecting cylinder 317 is connected to the sliding shell 313. The connecting cylinder 317 is provided with a pneumatic supply device 318. An elastic positioning sleeve 319 is fitted onto the lifting head 316. The elastic positioning sleeve 319 is made of polyurethane material and coated with a coating to reduce the static friction coefficient between the lifting head 316 and the glass. The elastic positioning sleeve 319 is used to make elastic contact with the lower surface of the glass to avoid rigid scratches.

[0034] like Figures 5-7As shown, the self-locking assembly 32 includes two trigger rods 321 slidably connected to the lifting rod 315. The two trigger rods 321 are symmetrically distributed and engage with the lifting head 316. An elastic element, which is a spring, is provided between the trigger rods 321 and the lifting rod 315 to maintain the initial trigger state of the trigger rods 321. Symmetrically distributed locking wedges 322 are slidably connected inside the lifting rod 315. An elastic element, which is a spring, is provided between the symmetrically distributed locking wedges 322 to maintain the unlocked state. The locking wedges 322 are in a limiting sliding engagement with the trigger rods 321. Both sides of the air injection pipe 314 are slidably connected to symmetrically distributed locking racks 323. An elastic element, which is a spring, is provided between the symmetrically distributed locking racks 323. The locking racks 323 are in a limiting sliding engagement with the adjacent locking wedges 322. The locking racks 323 and the adjacent locking wedges 322 engage with each other, preventing the locking wedges 322 from moving upward relative to the locking racks 323. This locks the relative position of the lifting rod 315 and the air injection pipe 314. After the height of the current lifting rod 315 is locked, under the action of equal air pressure, the other lifting rods 315 will continue to rise until the locking is completed.

[0035] like Figure 5 As shown, the adjustment assembly 33 includes an adjustment gear 331 rotatably connected to the lifting head 316. Symmetrically distributed adjustment rods 332 are rotatably connected to the lifting head 316, meshing with the adjustment gear 331. A trigger baffle 333 is slidably connected to the lifting head 316, threadedly engaging with the adjustment rods 332 and making a limiting contact with the trigger rods 321. By adjusting the vertical height of the trigger baffle 333, the distance at which the trigger rods 321 are triggered by the downward pressure of the lifting head 316 is changed, thereby adjusting the compression amount corresponding to the locking of each lifting head 316. This allows the device to set an appropriate locking sensitivity according to different thicknesses of glass, ensuring that glass of different weights can be locked at the optimal time and receive consistent support.

[0036] like Figure 3 and Figure 7As shown, the force-equalizing lifting mechanism 3 is equipped with a lateral stabilizing component 4, which is used to position the glass on both sides. The lateral stabilizing component 4 includes a positioning screw shaft 401 rotatably connected to the lifting housing 312. The lifting housing 312 is equipped with a screw motor 402, and the output end of the screw motor 402 is in transmission cooperation with the positioning screw shaft 401. A screw sliding seat 403 is slidably connected in the sliding housing 313. The screw sliding seat 403 and the positioning screw shaft 401 are in cooperation through a screw pair. An elastic element, which is a spring, is provided between the screw sliding seat 403 and the sliding housing 313. The lead screw slide seat 403 is slidably engaged with the air injection pipe 314, and the lead screw slide seat 403 is limited and slidably engaged with the adjacent symmetrically distributed locking racks 323. The movement of the lead screw slide seat 403 is triggered by the locking racks 323, thereby controlling the engagement state of the lead screw slide seat 403 and the positioning lead screw shaft 401. When the lifting head 316 is in contact with the glass and locked in position, the lead screw slide seat 403 is not engaged with the positioning lead screw shaft 401. The lifting heads 316 on the front and rear sides of the glass can provide horizontal stability constraint on the front and rear directions of the glass, preventing horizontal displacement of the glass due to vibration or airflow disturbance during measurement.

[0037] like Figure 2 and Figure 8 As shown, a measuring component 5 is installed on the frame 1. The measuring component 5 is used to measure the deformation of the glass surface. The measuring component 5 includes an isolation shell 501 slidably connected to the frame 1. The isolation shell 501 is an annular enclosure structure. The circumferential enclosure structure of the isolation shell 501 is made of opaque material to isolate external stray light from interfering with the optical measuring structure 503 during measurement. A horizontal moving structure 502 is installed inside the isolation shell 501. The optical measuring structure 503 is mounted on the horizontal moving structure 502. The horizontal moving structure 502 drives the optical measuring structure 503 to measure the deformation at various positions of the glass. The optical measuring structure 503 is used to measure the deformation of the glass surface. A dustproof shell 504 is installed on the outside of the optical measuring structure 503 to prevent dust in the glass production workshop environment from adhering to the lens surface of the optical measuring structure 503. To prevent dust contamination from causing optical signal attenuation or image distortion, thus ensuring the measurement accuracy and reliability of the optical measurement structure during long-term use, a sealing edge 505 is provided on the side of the isolation shell 501 near the frame 1. A sealing protrusion 506 is provided on the frame 1 corresponding to the sealing edge 505. The sealing edge 505 and the sealing protrusion 506 contact and cooperate with each other, so that the lower end of the isolation shell 501 and the frame 1 form a sealed contact. The isolation shell 501, the sealing edge 505, and the sealing protrusion 506 cooperate to form a light-shielding space, completely enclosing the glass in a closed dark room and isolating it from interference from external stray light. A uniformly arranged supplementary light structure 6 is provided on the upper side of the dustproof shell 504. The light emitted by the supplementary light structure 6 is reflected or diffused by the inner wall of the isolation shell 501 and then evenly illuminates the upper surface of the glass, improving the image contrast and clarity of the optical measurement structure 503 during measurement.

[0038] like Figure 8 As shown, a synchronous lifting assembly 7 is provided between the force-equalizing lifting mechanism 3 and the measuring component 5 to stabilize the height of the glass during measurement. The synchronous lifting assembly 7 includes a lifting rack 701 fixed to the lifting housing 312, a transmission rod 702 rotatably connected inside the fixed housing 311, and a synchronizing rod 703 slidably connected inside the fixed housing 311. The synchronizing rod 703 is fixedly connected to the isolation housing 501. Gears are provided at both ends of the transmission rod 702. The transmission rod 702, the lifting rack 701, and the synchronizing rod 703 are all connected by gear and rack transmission. While the lifting housing 312 is raised and lifted, the isolation housing 501 is lowered synchronously, ensuring that the light-blocking space is formed synchronously when the glass reaches the measurement height, reducing process waiting time and avoiding electrical control timing errors.

[0039] When using this device to measure glass deformation, the operator rotates the adjusting gear 331 inside each lifting head 316 according to the thickness specification of the glass to be measured. The adjusting gear 331 drives the adjusting rod 332 to rotate, and the adjusting rod 332 drives the trigger baffle 333 to move up and down through the threaded engagement, changing the distance between the lower end of the trigger baffle 333 and the upper end of the trigger rod 321, thereby setting how much travel the lifting head 316 needs to be pressed down before triggering the locking mechanism. Taking a 2mm thick glass as an example, the trigger baffle 333 is adjusted so that the trigger travel of the trigger rod 321 is 3mm; if the glass is replaced with a 0.7mm thick glass, the trigger travel needs to be reduced to 1.5mm to ensure that the trigger sensitivity matches the weight of the glass.

[0040] The glass to be tested is conveyed to the conveying structure 2 by the upstream conveyor line. The conveying rollers of the conveying structure 2 rotate synchronously, conveying the glass to the measuring station in the left and right direction. At this time, the glass is located directly above each lifting head 316, and a certain gap is left between the lower surface of the glass and the top of the lifting head 316.

[0041] The air pressure supply device 318 is activated, supplying equal-pressure gas to each sliding shell 313 and each air injection pipe 314 through the connecting cylinder 317. Since all air injection pipes 314 are interconnected through the connecting cylinder 317, the air pressure in all air injection pipes 314 is exactly the same. Under the action of air pressure, each lifting rod 315 slides upward synchronously, driving each lifting head 316 to rise synchronously, and each lifting head 316 gradually approaches the lower surface of the glass. Since the initial height of each lifting rod 315 is the same and the air supply pressure is the same, the rising speed and displacement of all lifting heads 316 are the same.

[0042] When the head of one of the lifting heads 316 first contacts the lower surface of the glass, the gravity of the glass acts on the lifting head 316, causing it to slide downward relative to the lifting rod 315, compressing the spring between the lifting head 316 and the lifting rod 315. As the lifting head 316 slides downward, the lower end face of the trigger baffle 333 pushes the trigger rod 321 downward. The trigger rod 321 presses down on the two locking wedges 322, overcoming the elastic force and contracting towards the middle. The locking wedges 322 drive the locking rack 323 to slide towards the middle. The locking rack 323 cooperates with the locking wedges 322, preventing the locking wedges 322 from moving upward relative to the locking rack 323, thus locking the lifting rod 315 at this position. At this time, the air pressure in the air injection pipe 314 no longer pushes the lifting rod 315 upward, and the lifting rod 315 where the lifting head 316 is located is locked at the current height. The air pressure in the air injection pipe 314 is also locked accordingly. The other lifting heads 316 that have not yet contacted the glass continue to rise under the drive of the isobaric gas until they each contact the lower surface of the glass and lock one by one. Since all the gas injection pipes 314 are interconnected through the connecting cylinder 317 and have the same gas supply pressure, at the moment each lifting rod 315 is locked, the gas pressure in each gas injection pipe 314 is equal, and the supporting force of each lifting head 316 on the glass is also equal.

[0043] Once all or most of the lifting heads 316 have contacted and locked the glass, the symmetrically distributed locking racks 323 simultaneously press against the lead screw slide seat 403. The lead screw slide seat 403 moves downwards under this pressure, compressing and storing its spring. Simultaneously, the lead screw slide seat 403 releases its transmission engagement with the positioning lead screw shaft. The lead screw motor 402 starts, driving the positioning lead screw shaft 401 to rotate. The positioning lead screw shaft 401 drives the lead screw slide seat 403 to slide synchronously towards the center in the front-to-back direction via the lead screw pair. The lead screw slide seat 403 drives the air injection pipe 314 and the lifting rod 315 to move synchronously towards the center, causing the unlocked lifting heads 316 located on the front and back sides of the glass to retract towards the center. The concave side of the middle of the lifting head 316 forms a fitting and positioning engagement with the front and back edges of the glass, providing stable constraint in the front-to-back direction and preventing horizontal displacement of the glass due to external vibrations or airflow disturbances during measurement. After positioning is completed, the lead screw motor 402 stops running, and the lead screw slide 403 remains in its current position.

[0044] The air supply device 318 continues to supply air into the connecting cylinder 317. Since each lifting rod 315 is locked, the gas in each air injection pipe 314 pushes each sliding shell 313 and the lifting shell 312 upward as a whole. When the lifting shell 312 rises, the lifting rack 701 fixedly connected to the lifting shell 312 rises synchronously, driving the transmission rod 702 to rotate. The transmission rod 702 drives the synchronizing rod 703 to slide downward through the gear at the other end, and the synchronizing rod 703 drives the isolation shell 501 to move downward synchronously. The lifting shell 312 lifts the glass to the set height, so that the glass is completely separated from the surface of the conveyor roller and is suspended in the air, avoiding contact between the conveyor roller and the glass, which would affect the measurement accuracy. At the same time, the isolation shell 501 descends to contact and engage with the sealing protrusion 506 on the frame 1. The sealing edge 505 and the sealing protrusion 506 are elastically pressed together to form a closed light-shielding space, enclosing the glass and isolating it from external stray light interference.

[0045] After the isolation shell 501 descends to its position, the supplementary lighting structure 6 is activated. The emitted light is reflected or diffused by the inner wall of the isolation shell 501 and evenly illuminates the upper surface of the glass, providing stable and uniform illumination for the optical measurement structure 503. The horizontal moving structure 502 drives the optical measurement structure 503 to move horizontally, scanning the upper surface of the glass point by point, collecting the height data of the glass surface, and calculating the warping deformation. Since the supporting force of each support head 316 on each support point is equal, the glass maintains its original warping shape throughout the measurement process and will not produce additional deformation due to uneven supporting force, so the measurement results are true and reliable.

[0046] After measurement, the lead screw motor 402 reverses, driving the positioning lead screw shaft 401 to reverse as well. Under the action of the elastic element, the lead screw sliding seat 403 drives the air injection pipe 314 and the lifting head 316 to reset to both sides, releasing the clamping on the front and rear sides of the glass. The air pressure supply device 318 stops supplying air, and the gas in the connecting cylinder 317 and the air injection pipe 314 gradually dissipates. Each lifting shell 312 and sliding shell 313 gradually descends and resets under gravity. When the lifting shell 312 descends, the lifting rack 701 drives the transmission rod 702 to rotate in the opposite direction. The transmission rod 702 drives the synchronizing rod 703 to synchronously raise and open the isolation shell 501. Under the action of the elastic element, each lifting head 316 resets upward relative to the lifting rod 315 to the extended position. The trigger rod 321 resets upward under the action of the elastic element. The locking wedge 322 resets outward under the action of the spring and releases its limiting engagement with the locking rack 323. Each lifting rod 315 returns to a state where it can be locked by the locking rack 323. The glass falls back onto the conveyor rollers of conveyor structure 2. The rotating conveyor rollers send the measured glass out of the measurement station, and the next piece of glass to be measured enters the measurement station at the same time, starting the next measurement cycle.

[0047] Although the invention has been described with reference to exemplary embodiments, it should be understood that the invention is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation so as to cover all variations and equivalent structures and functions.

Claims

1. A device for measuring the amount of glass warpage, characterized in that: The system includes a frame (1), a conveying structure (2) on the frame (1), a force-equalizing lifting mechanism (3) interspersed with the conveying structure (2) on the frame (1), the force-equalizing lifting mechanism (3) being used to uniformly lift the glass, a lateral stabilizing component (4) being provided inside the force-equalizing lifting mechanism (3), the lateral stabilizing component (4) being used to position the two sides of the glass, a measuring component (5) being provided on the frame (1), the measuring component (5) being used to measure the deformation of the glass surface, and a synchronous lifting component (7) being provided between the force-equalizing lifting mechanism (3) and the measuring component (5) to stabilize the height of the glass during measurement; The uniform force lifting mechanism (3) includes a lifting component (31), a self-locking component (32), and an adjusting component (33). The lifting component (31) is used to lift the glass upwards. The lifting component (31) includes a fixed shell (311), which is fixedly connected to the frame (1). A lifting shell (312) is slidably connected inside the fixed shell (311). A uniformly distributed sliding shell (313) is slidably connected inside the lifting shell (312). A uniformly distributed air injection pipe is fixedly connected and connected inside the sliding shell (313). 314), a lifting rod (315) is slidably connected inside the sliding shell (313), the lifting rod (315) is sealed to the air injection pipe (314), a lifting head (316) is slidably connected to the top of the lifting rod (315), an elastic element is provided between the lifting head (316) and the lifting rod (315), a connecting cylinder (317) is fixedly connected to the lifting shell (312), the connecting cylinder (317) is connected to the sliding shell (313), and a gas pressure supply device (318) is provided in the connecting cylinder (317).

2. The glass warpage deformation measuring device according to claim 1, characterized in that: The lifting head (316) includes an integrally formed or fixedly connected head and middle part. The head is hemispherical and the middle part is a cylindrical part with concave sides. An annular step is formed between the concave side and the head.

3. A glass warpage deformation measuring device according to claim 2, characterized in that: The lifting head (316) is fitted with an elastic positioning sleeve (319), which is made of polyurethane material and coated with a coating to reduce the static friction coefficient between the lifting head (316) and the glass.

4. A glass warpage deformation measuring device according to claim 3, characterized in that: The self-locking assembly (32) includes symmetrically distributed trigger rods (321), which are slidably connected to the lifting rod (315). The trigger rods (321) are in contact with the lifting head (316). An elastic element is provided between the trigger rods (321) and the lifting rod (315). A symmetrically distributed locking wedge (322) is slidably connected inside the lifting rod (315). An elastic element is provided between the symmetrically distributed locking wedges (322). The locking wedges (322) are in a limited sliding fit with the trigger rods (321). A symmetrically distributed locking rack (323) is slidably connected to the air injection pipe (314). An elastic element is provided between the symmetrically distributed locking racks (323). The locking racks (323) are in a limited sliding fit with the adjacent locking wedges (322).

5. A glass warpage deformation measuring device according to claim 4, characterized in that: The adjustment assembly (33) includes an adjustment gear (331), which is rotatably connected to the lifting head (316). The lifting head (316) is rotatably connected to symmetrically distributed adjustment rods (332), which mesh with the adjustment gear (331). The lifting head (316) is slidably connected to a trigger baffle (333), which is threadedly engaged with the adjustment rods (332) and makes a limiting contact with the trigger rods (321).

6. A glass warpage deformation measuring device according to claim 5, characterized in that: The lateral stabilization component (4) includes a positioning screw shaft (401), which is rotatably connected to the lifting housing (312). The lifting housing (312) is equipped with a screw motor (402), the output end of which is in transmission cooperation with the positioning screw shaft (401). A screw sliding seat (403) is slidably connected inside the sliding housing (313). The screw sliding seat (403) and the positioning screw shaft (401) are in cooperation through a screw pair. An elastic element is provided between the screw sliding seat (403) and the sliding housing (313). The screw sliding seat (403) is in sliding cooperation with the air injection pipe (314). The screw sliding seat (403) is in limiting sliding cooperation with the adjacent symmetrically distributed locking racks (323).

7. A glass warpage deformation measuring device according to claim 6, characterized in that: The measuring component (5) includes an isolation shell (501), which is slidably connected to the frame (1). A horizontal moving structure (502) is provided inside the isolation shell (501), and an optical measuring structure (503) is mounted on the horizontal moving structure (502). The optical measuring structure (503) is used to measure the deformation of the glass surface, and a dustproof shell (504) is provided on the outside of the optical measuring structure (503).

8. A glass warpage deformation measuring device according to claim 7, characterized in that: The isolation shell (501) is an annular enclosure structure. The circumferential enclosure structure of the isolation shell (501) is made of opaque material. A sealing edge (505) is provided on the side of the isolation shell (501) near the frame (1). A sealing protrusion (506) is provided on the frame (1) corresponding to the sealing edge (505). The sealing edge (505) and the sealing protrusion (506) are in contact with each other. The isolation shell (501), the sealing edge (505), and the sealing protrusion (506) cooperate to form a light-shielding space.

9. A glass warpage deformation measuring device according to claim 8, characterized in that: The dust cover (504) has a uniformly arranged supplementary light structure (6) on the side away from the frame (1). The light emitted by the supplementary light structure (6) is reflected or diffused by the inner wall of the isolation shell (501) and then uniformly illuminates the upper surface of the glass, thereby improving the image contrast and clarity of the optical measurement structure (503) during measurement.

10. A glass warpage deformation measuring device according to claim 9, characterized in that: The synchronous lifting assembly (7) includes a lifting rack (701), which is fixed to the lifting housing (312). A transmission rod (702) is rotatably connected inside the fixed housing (311), and a synchronous rod (703) is slidably connected inside the fixed housing (311). The synchronous rod (703) is fixedly connected to the isolation housing (501). Gears are provided at both ends of the transmission rod (702), and the transmission rod (702) is engaged with the lifting rack (701) and the synchronous rod (703) through gear and rack transmission.

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