A device for electrically loading a glass cold bend test

Abstract

The application discloses a kind of electric loading testing device for glass cold bending, including lower support on base, nut type elevator driven support mechanism, and pressure system of upper support.Support mechanism carries glass by T type carrier plate, and the edge of glass is adaptively locked by the edge pressing structure driven by worm and worm self-locking mechanism, and rubber strip at the bottom of pressing plate provides buffer protection;Pressure system rotates rough pressure direction by first motor driven rotating drum base, and second motor realizes lateral micro-positioning of pressing assembly by the cooperation of screw and gear rack, and adaptively fits glass curved surface by the cooperation of double pressure column and transverse block linkage.The device integrates electric drive components and pressure sensing components, and automatically controls glass positioning, pressure point adjustment and pressure testing throughout the process, solving the problems of low positioning accuracy, poor curved surface adaptability and insufficient test efficiency of traditional equipment.

Description

Technical Field

[0001] This invention relates to the field of glass production testing technology, specifically to an electric loading test device for glass cold bending. Background Technology

[0002] With the continuous innovation and breakthroughs in modern architectural design, architects have an increasing demand for complex shapes such as curved surfaces, hyperboloids, and freeform surfaces, and the application of curved glass has become more and more common. However, the processing of these special-shaped glass is not only technically difficult, but also accompanied by high costs and long production cycles. In order to reduce production costs and shorten the cycle, cold bending glass technology has gradually attracted attention. Through computer-aided design and other means, the feasibility of cold bending glass technology is evaluated and the processing is optimized.

[0003] Currently, Chinese patent application number CN202411378151.0 discloses an electric loading device and testing method for glass cold bending testing. The device includes a base, a fixed bracket, a pressure loading test piece, a lifting component, a loading assembly, and a control unit. The fixed bracket is adjustablely mounted on the base. The pressure loading test piece is located at the top of the fixed bracket and is used to provide compressive stress for glass cold bending testing and output stress data. The lifting component is mounted on the fixed bracket. The loading assembly is located below the pressure loading test piece and is mounted on the lifting component through a connecting component. The loading assembly is used to provide various glass cold bending loading methods. Both the pressure loading test piece and the lifting component are electrically connected to the control unit.

[0004] However, existing electric loading devices for glass cold bending tests, while achieving basic electric control through the coordination of the lifting components and loading integration, still have significant limitations: First, the loading integration adopts a rigid clamping structure, which is inconvenient for adapting to irregular glass contours and easily leads to edge stress concentration; second, the pressure loading test piece only supports single-point pressure and has insufficient adjustment freedom, making it difficult to accurately simulate the actual load distribution; third, the lack of a curved surface adaptive mechanism makes it easy for the pressure point to shift during glass deformation, resulting in data distortion. Summary of the Invention

[0005] The purpose of this invention is to provide an electric loading test device for cold bending of glass to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a glass cold bending electric loading test device, comprising a base, a lower support mounted on the top of the base, a nut-type lifting mechanism disposed on the middle rear side of the lower support, a support mechanism locked and fixed at the front lifting end of the nut-type lifting mechanism, slide bars slidably connected to the left and right sides of the rear of the support mechanism, and the two slide bars are respectively fastened to the left and right sides of the front of the lower support, an upper support locked and fixed at the top of the lower support, a driving component mounted on the rear side of the top of the upper support, the output shaft of the front of the driving component connected to the pressure lifting body, a force-applying screw threaded through the inside of the pressure lifting body, a pressure sensor, a floating joint and a pressure head mechanism arranged sequentially from top to bottom at the bottom of the force-applying screw, the support mechanism comprising a T-shaped carrier plate, sliders fixedly connected to the left and right sides of the rear of the T-shaped carrier plate, and strip grooves opened on the left and right sides of the inside of the T-shaped carrier plate, a first pressing edge structure and a second pressing edge structure of the same structure and size respectively threaded through the two strip grooves, and the two sliders are slidably connected to the two slide bars respectively.

[0007] Preferably, the first pressing structure includes a column rod disposed above the strip groove of the T-shaped carrier plate and fastened to the T-shaped carrier plate by bolts. A sleeve is rotatably wrapped around the upper part of the outer surface of the column rod. A helical rack is longitudinally fixed at the front part of the sleeve. A sliding sleeve frame is longitudinally slidable on the outer surface of the sleeve. A through groove is opened in the middle side of the inner side of the sliding sleeve frame. The through groove is slidably connected to the outer side of the helical rack. A worm gear is meshed and driven at the front side of the helical rack. A worm is meshed and connected at the bottom of the worm gear. A handle is coaxially rotatable at the front end of the worm. A pressure plate is fixedly connected to the front bottom of the sliding sleeve frame. The worm gear and the worm are rotatably connected to the upper and lower sides of the inner side of the sliding sleeve frame, respectively.

[0008] Preferably, the sleeve is provided with limit plates on both the upper and lower sides, and the bottom of the pressure plate is provided with two T-shaped grooves, and each of the two T-shaped grooves is provided with a rubber strip.

[0009] Preferably, the pressing head mechanism includes a ring block connected to the floating joint at the top center, a positioning cylinder seat fixedly connected to the bottom of the ring block, a first motor locked and fixed to the front center of the positioning cylinder seat, a first drive gear connected to the bottom output shaft of the first motor, a gear ring meshing with the rear side of the first drive gear, a rotating cylinder seat fixedly connected to the bottom of the gear ring, an adjusting component disposed inside the rotating cylinder seat, a slot frame fixedly connected to the bottom of the rotating cylinder seat, and a pressing component connected to the bottom end of the adjusting component. The rotating cylinder seat rotates through the bottom inner side of the positioning cylinder seat. The left and right sides of the adjusting component are fastened to the positioning cylinder seat, and the bottom of the adjusting component is slidably disposed inside the slot frame. The top side of the pressing component is in slidable contact with the bottom of the slot frame.

[0010] Preferably, the adjustment assembly includes support frames fastened to the left and right sides of the positioning cylinder seat, a second motor locked and fixed to the top right side of the support frame, a second driving gear connected to the top output shaft of the second motor, a driven gear meshing with the left side of the second driving gear, a long screw rod coaxially rotating on the bottom middle side of the driven gear, an internally threaded sleeve threaded to the outer surface of the long screw rod, two sliding pillars integrally formed on the front and rear sides of the top of the internally threaded sleeve, a sliding plate connected to the bottom of the internally threaded sleeve, a short screw rod fixedly connected to the bottom middle side of the sliding plate, and a screw... The system includes an internally threaded ring block connected to the outer surface of the short screw column, a hollow gear fixed to the bottom side of the outer surface of the internally threaded ring block, a rack meshing with the front side of the hollow gear, and a shifting block locked to the front side of the rack. The two sliding pillars are respectively inserted and slidably inserted into the front and rear sides of the bottom of the support frame. The left and right sides of the sliding plate are connected to the rotating drum seat. The internally threaded ring block rotates through the bottom of the rotating drum seat, and the hollow gear is disposed through the upper middle side of the rear part of the slot frame. The rack and the shifting block are slidably disposed inside the slot frame, and the bottom of the shifting block is connected to the pressing assembly.

[0011] Preferably, the bottom of the internal threaded sleeve is provided with a chuck, a hollow groove is formed on the outer side between the internal threaded sleeve and the chuck, and the sliding piece rotates and contacts the inside of the hollow groove.

[0012] Preferably, the bottom of the rotary drum seat is provided with two guide rods in a longitudinal direction, and the sliding plate has round openings on the left and right sides, which wrap around the outer surface of the guide rods.

[0013] Preferably, the bottom of the displacement block is provided with a protrusion, and the protrusion slides through the bottom side of the slot frame. The bottom end of the protrusion is fastened to the pressing component, and the top side of the pressing component slides in contact with the slot frame.

[0014] Preferably, the pressing assembly includes two sets of first pressing components and second pressing components. The second pressing component is fixed to the right side of the first pressing component, and the two sets of first pressing components and second pressing components are arranged symmetrically front and back. A connecting post is fixed above the connection between the first pressing component and the second pressing component, and the top of the connecting post is connected to the adjustment assembly. A transverse sliding block is provided on the upper side of the interior of both the first pressing component and the second pressing component. The bottom left and right sides of the transverse sliding block are respectively in contact with the first pressing post and the second pressing post.

[0015] Preferably, the bottom ends of the first and second pressure columns are provided with arc-shaped rubber sheets, and a first positioning head is slidably ...

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] This invention utilizes a worm gear self-locking mechanism and a rotatable sleeve design to enable the two sets of pressing structures to adaptively adjust the angle of the pressing plate to fit the irregular glass contour when pressing the glass edge. At the same time, the self-locking characteristic maintains a constant braking force. Combined with the elastic buffer of the rubber strip in the T-groove, it effectively avoids the risk of cracking caused by stress concentration at the glass edge. Meanwhile, the rigid lifting system composed of the nut-type elevator and the slide bar provides a vertical displacement platform for the glass without the risk of tipping over, ensuring that the glass posture is stable and controllable during the test.

[0018] This invention breaks through the limitations of traditional single-point pressure by using an adjustment system formed by the rotation and lateral fine adjustment of the pressure head mechanism. The first motor drives the rotating drum seat to rotate as a whole to achieve coarse adjustment of the pressure direction, and the second motor completes the lateral micro-positioning of the pressing component through the screw system and then the gear and rack transmission, so that the force application point is positioned with high precision. In addition, the structure of the double pressure column is linked by the lateral block lever, which automatically adjusts the height difference of the double pressure column when the glass is deformed, so that the arc rubber sheet always fits the curved surface in full width, eliminating the test distortion caused by local stress concentration.

[0019] This invention replaces traditional manual adjustment with an electrified integrated drive component, a first motor, and a second motor, achieving fully automated control of the entire process of glass positioning, pressure point adjustment, and pressure testing. Furthermore, combined with the rapid locking characteristics of the worm gear self-locking mechanism and the precise positioning capability of the pressure head mechanism, it significantly shortens the preparation time for a single test and improves the efficiency of batch testing. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the electric loading test device of the present invention;

[0021] Figure 2 This is a rear view schematic diagram of the connection between the nut-type lifting machine and the support mechanism of the present invention;

[0022] Figure 3 This is a schematic diagram of the support mechanism of the present invention;

[0023] Figure 4 This is a schematic diagram of the first pressing structure of the present invention;

[0024] Figure 5 This is a partial structural diagram showing the connection between the pressure sensing element, the floating joint, and the pressure head mechanism of the present invention.

[0025] Figure 6 This is a schematic diagram of the pressure head mechanism of the present invention;

[0026] Figure 7 This is a three-dimensional structural schematic diagram of the positioning component of the present invention;

[0027] Figure 8 For the present invention Figure 7 A three-dimensional structural diagram from the rear view;

[0028] Figure 9 This is a schematic diagram of the pressing component of the present invention.

[0029] In the diagram: Base-1, Lower bracket-2, Nut-type lifting mechanism-3, Support mechanism-4, Slide bar-5, Upper bracket-6, Drive component-7, Pressure lifting body-8, Force screw-9, Pressure sensor-10, Floating joint-11, Pressure head mechanism-12, T-shaped carrier plate-41, Slider-42, First pressure edge structure-43, Second pressure edge structure-44, Column rod-431, Sleeve-432, Helical rack-433, Slide sleeve bracket-434, Worm gear-435, Worm-436, Throttle-437, Pressure plate-438, Ring block-121, Positioning cylinder seat-122, First motor-123, First drive gear-124, Gear ring-125, Rotary cylinder seat-126, Adjustment assembly-127, Slot frame-12 8. Pressing assembly - 129, Support frame - 1271, Second motor - 1272, Second driving gear - 1273, Driven gear - 1274, Long screw column - 1275, Internal threaded sleeve - 1276, Sliding column - 1277, Sliding plate - 1278, Short screw column - 1279, Internal threaded ring block - 12710, Hollow gear - 12711, Rack - 12712, Shifting block - 12713, Chuck - 12761, First pressing component - 1291, Second pressing component - 1292, Connecting column - 1293, Lateral block - 1294, First pressing column - 1295, Second pressing column - 1296, First positioning head - 12941, Second positioning head - 12951, Third positioning head - 12961. Detailed Implementation

[0030] To further explain the technical solution of the present invention, a detailed description is provided below through specific embodiments.

[0031] Please see Figure 1 and Figure 2 This invention provides an electric loading test device for cold bending of glass, including a base 1, a lower support 2 installed on the top of the base 1, a nut-type lifting mechanism 3 arranged on the middle of the rear of the lower support 2, and a support mechanism 4 locked and fixed at the front lifting end of the nut-type lifting mechanism 3. The support mechanism 4 directly supports and positions the glass sample to be tested, and provides a large stroke, stable and controllable lifting drive in the vertical direction under the action of the nut-type lifting mechanism 3 to adjust the height position of the glass to be tested. Slide bars 5 are slidably connected to the left and right sides of the rear of the support mechanism 4, and the two slide bars 5 are respectively fastened to the left and right sides of the front of the lower support 2, providing precise guidance for the lifting movement of the support mechanism 4, ensuring that its movement is smooth and perpendicular to the base 1.

[0032] The upper bracket 6 is locked and fixed to the top of the lower bracket 2. The drive component 7 is installed on the rear side of the top of the upper bracket 6. The output shaft of the front part of the drive component 7 is connected to the pressure lifting body 8. The pressure lifting body 8 is internally installed with a force-applying screw 9. The drive component 7 is used as the power source to transmit and convert the rotational motion of the drive component 7 into the lifting motion of the force-applying screw 9, thereby converting it into precise linear pressure. The bottom of the force-applying screw 9 is provided with a pressure sensor 10, a floating joint 11 and a pressure head mechanism 12 from top to bottom. The pressure head mechanism 12 directly contacts and applies controllable pressure to the glass surface. Its structure can adapt to different pressure points. When applying force, the pressure sensor 10 measures and feeds back the pressure value applied to the glass in real time, realizing data monitoring of the testing process.

[0033] Please see Figure 1 , Figure 3 and Figure 4 This invention provides a glass cold bending electric loading test device. The support mechanism 4 includes a T-shaped carrier plate 41 that serves as a direct bearing platform for the glass sample. Slider 42 is fixedly connected to both the left and right sides of the rear of the T-shaped carrier plate 41. The two sliders 42 are slidably connected to two slide bars 5, respectively, to achieve precise lifting and lowering guidance of the T-shaped carrier plate 41 along the slide bars. The left and right sides of the interior of the T-shaped carrier plate 41 are provided with strip grooves. The two strip grooves are respectively provided with a first edge pressing structure 43 and a second edge pressing structure 44 of the same structure and size, which are used to clamp and fix the upper edge position of the glass sample, providing reliable lateral constraint.

[0034] The first pressing structure 43 includes a column rod 431 disposed above the strip groove of the T-shaped carrier plate 41 and fastened to the T-shaped carrier plate 41 by bolts, so that the column rod 431 serves as the core support and mounting base. The upper part of the outer surface of the column rod 431 is wrapped with a sleeve 432 that rotates. The front part of the sleeve 432 is longitudinally fixed with a helical rack 433 to allow the helical rack 433 and the sleeve 432 to rotate around the column rod 431 to adapt to different glass edge angles.

[0035] A sliding sleeve bracket 434 slides longitudinally on the outer surface of the sleeve 432. A through groove is formed on the inner side of the sliding sleeve bracket 434, which is slidably connected to the outer side of the helical rack 433. This groove accommodates the helical rack 433 and allows it to slide relative to the rack. A worm gear 435 meshes with the front side of the helical rack 433, and a worm 436 is meshed with the bottom of the worm gear 435. A handle 437 rotates coaxially at the front end of the worm 436. A pressure plate 438 is fixedly connected to the front bottom of the sliding sleeve bracket 434. The worm gear 435 and the worm 436 are rotatably connected to the upper and lower sides of the sliding sleeve bracket 434, respectively. The cooperation of the worm gear 435 and the worm 436 forms... The self-locking deceleration mechanism enables precise and stable adjustment and self-locking of the clamping force. When the throttle 437 is turned, the worm gear 435 is driven to mesh in front of the helical rack 433, which is converted into the vertical lifting and lowering of the sliding sleeve frame 434. This allows the pressure plate 438 to directly contact and press the glass edge. Limiting plates are provided on both the upper and lower sides of the sleeve 432 to limit the axial movement range of the sleeve 432 on the column rod 431 and prevent it from coming off. Two T-slots are opened laterally at the bottom of the pressure plate 438, and rubber strips are provided in both T-slots to increase the friction with the glass and provide a buffering effect, ensuring the pressing effect on the glass and avoiding damage to the glass edge.

[0036] Please see Figure 1 , Figures 5-9 The present invention provides an electric loading test device for cold bending of glass. The pressure head mechanism 12 includes a ring block 121 connected to the middle side of the top and a floating joint 11, a force-applying screw 9 connected to receive the applied force and compensate for the deviation through the floating joint 11, a positioning cylinder seat 122 fixedly connected to the bottom of the ring block 121, a first motor 123 locked and fixed to the middle side of the front part of the positioning cylinder seat 122, a first drive gear 124 connected to the bottom output shaft of the first motor 123, a gear ring 125 meshing with the rear side of the first drive gear 124, and a rotating cylinder seat 126 fixedly connected to the bottom of the gear ring 125. The first motor 123 provides rotational power to drive the first drive gear 124 to drive the gear ring 125 to rotate and the rotating cylinder seat 126 to rotate.

[0037] The adjusting component 127, the slotted frame 128 fixedly connected to the bottom of the rotating cylinder seat 126, and the pressing component 129 connected to the bottom end of the adjusting component 127 are disposed inside the rotating cylinder seat 126. The rotating cylinder seat 126 serves as a rotating platform for the adjusting component 127 and the pressing component 129, and the pressing component 129 can be adjusted to the desired pressing position to apply pressure to the glass surface. The rotating cylinder seat 126 rotates through the inner bottom of the positioning cylinder seat 122, causing the rotating cylinder seat 126 to rotate. 26 can rotate within the positioning cylinder seat 122 to adjust the direction of the pressing component 129. The left and right sides of the adjusting component 127 are fastened to the positioning cylinder seat 122 to form support for the adjusting component 127 in the upper position. The bottom of the adjusting component 127 is slidably disposed inside the slot frame 128. The top side of the pressing component 129 slides in contact with the bottom of the slot frame 128 to allow the pressing component 129 to move horizontally on the bottom plane of the slot frame 128 to achieve precise positioning of the force application point.

[0038] The adjustment assembly 127 includes support frames 1271 on the left and right sides that are fastened to the positioning cylinder seat 122 to provide stable support for the entire adjustment assembly. It also includes a second motor 1272 locked to the top right side of the support frame 1271, a second drive gear 1273 connected to the top output shaft of the second motor 1272, a driven gear 1274 meshing with the left side of the second drive gear 1273, a long screw rod 1275 coaxially rotating on the bottom center of the driven gear 1274, and a threaded connection to the outer surface of the long screw rod 1275. The internal threaded sleeve 1276, two sliding pillars 1277 integrally formed on the front and rear sides of the top of the internal threaded sleeve 1276, and a sliding plate 1278 connected to the bottom of the internal threaded sleeve 1276 are powered by a second motor 1272. The long screw column 1275 is rotated by the cooperation of the second driving gear 1273 and the driven gear 1274. The rotational motion of the long screw column 1275 is converted into the linear lifting motion of the internal threaded sleeve 1276, so as to drive the sliding plate 1278 to change the longitudinal position.

[0039] A short screw post 1279 is fixedly connected to the middle side of the bottom of the sliding plate 1278; an internal threaded ring block 12710 is threaded to the outer surface of the short screw post 1279; a hollow gear 12711 is fixed to the bottom side of the outer surface of the internal threaded ring block 12710; a rack 12712 is meshed and driven in front of the hollow gear 12711; and a shifting block 12713 is locked and fixed in front of the rack 12712. When the height position of the sliding plate 1278 changes, the short screw post 1279 is driven to change its height position in the internal threaded ring block 12710, thereby driving the internal threaded ring block 12710 and the hollow gear 12711 to rotate synchronously. When the hollow gear 12711 rotates, it drives the rack 12712 to mesh and shift, thereby driving the shifting block 12713 to change its position laterally.

[0040] Two sliding pins 1277 are inserted and slidably inserted into the bottom front and rear sides of the support frame 1271, respectively, to limit and guide the movement, ensuring that the internal thread sleeve 1276 is accurately guided and lifted. The sliding plate 1278 and its motion conversion mechanism are connected to the rotating drum seat 126, so that the adjustment function can rotate with it to change direction. The internal thread ring block 12710 is inserted and rotated through the bottom of the rotating drum seat 126, allowing the internal thread ring block 12710 to rotate within the rotating drum seat 126 to achieve motion conversion. The hollow gear 12711 is inserted and disposed in the upper middle part of the rear of the slot frame 128. The rack 12712 and the shift block 12713 are slidably disposed inside the slot frame 128. The bottom of the shift block 12713 is connected to the pressing assembly 129. The rotational motion is transmitted to the inside of the slot frame 128 through the hollow gear 12711, so that the shift block 12713 can make stable lateral movement within the slot frame 128, thereby accurately positioning the pressing point of the pressing assembly 129.

[0041] The internal threaded sleeve 1276 has a chuck 12761 at its bottom. A hollow groove is formed on the outer side between the internal threaded sleeve 1276 and the chuck 12761, and the sliding piece 1278 rotates and contacts the inside of the hollow groove to connect and position the sliding piece 1278, providing a rotating contact surface. The bottom of the rotary drum seat 126 has two guide rods arranged longitudinally, and the sliding piece 1278 has round openings on its left and right sides. The round openings cover the outer surface of the guide rods to allow the sliding piece 1278 to slide along the guide rods. The rod changes its position longitudinally inside the rotating cylinder seat 126 while restricting its rotation. The bottom of the shift block 12713 is provided with a protrusion, which slides through the bottom side of the slot frame 128. The bottom end of the protrusion is fastened to the pressing component 129, so that the shift block 12713 can drive the pressing component 129 to move in the bottom plane of the slot frame 128. The top side of the pressing component 129 slides in contact with the slot frame 128, ensuring that the pressing component 129 remains stable during horizontal movement and can withstand vertical pressure.

[0042] The pressing assembly 129 includes two sets of first pressing components 1291 and second pressing components 1292. The second pressing component 1292 is fixed to the right side of the first pressing component 1291, and the two sets of first pressing components 1291 and second pressing components 1292 are arranged symmetrically front and back to provide multi-point pressure application. Even after the glass under test is deformed by pressure, the pressure point can still stably contact the glass, improving the stability of the test and the reliability of the data. A connecting post 1293 is fixed above the connection between the first pressing component 1291 and the second pressing component 1292, and the top of the connecting post 1293 is connected to the bottom of the shifting block 12713. The protrusions are connected to each other so that the movement of the shift block 12713 is transmitted to the entire pressing assembly 129. The upper and middle sides of the first pressing component 1291 and the second pressing component 1292 are both laterally sliding with transverse blocks 1294. The bottom left and right sides of the transverse block 1294 are respectively in sliding contact with the first pressing column 1295 and the second pressing column 1296. The lateral displacement of the transverse block 1294 is converted into the lifting and lowering movement of the two pressing columns. When one pressing column contacts the glass, it moves upward. The displacement of the transverse block 1294 drives the other pressing column to move downward. Thus, the two pressing columns adapt to different glass surface requirements and improve the pressing effect on the glass.

[0043] The bottom ends of the first pressure column 1295 and the second pressure column 1296 are provided with arc-shaped rubber sheets to provide cushioning, prevent the glass from being crushed, and adapt to the curved surface of the glass. The first positioning head 12941 slides through the middle of the interior of the transverse block 1294. The first pressure column 1295 and the second pressure column 1296 are both arranged longitudinally to ensure that the pressure direction is perpendicular to the glass surface. The second positioning head 12951 slides through the middle of the interior of the first pressure column 1295, and the third positioning head 12961 slides through the middle of the interior of the second pressure column 1296. The first positioning head 12941, the second positioning head 12951, and the third positioning head 12961 are all located inside the first pressing component 1291 and the second pressing component 1292. The three positioning heads are used to position and guide the transverse block 1294, the first pressure column 1295, and the second pressure column 1296 to ensure the stability of the movement of each moving component.

[0044] The working principle of the electric loading test device for cold bending of glass of the present invention is as follows:

[0045] First, glass positioning and fixing:

[0046] The support mechanism 4 is driven to rise and fall vertically along the slide bar 5 by the nut-type lifting machine 3, and the glass to be tested, which is supported on the T-shaped carrier plate 41, is adjusted to the preset height. Then, the handles 437 of the first pressing structure 43 and the second pressing structure 44 are operated, and the worm gear 436 drives the worm wheel 435 to rotate. The worm wheel 435 meshes with the helical rack 433 to convert the rotational motion into the vertical displacement of the slide sleeve frame 434, so that the rubber strip at the bottom of the pressure plate 438 presses the edge of the glass. The self-locking characteristics of the worm wheel 435 and the worm gear 436 ensure that the pressing force is kept stable. In addition, during the process of the pressure plate 438 applying pressure to the glass, the position of the sleeve 432 on the surface of the column rod 431 can be rotated so that the pressure plate 438 is oriented to different positions to apply pressure and position the glass, adapting to different glass edge angles.

[0047] Second, the position and posture adjustment of the pressure head mechanism 12:

[0048] The first motor 123 is started to drive the first drive gear 124, which drives the gear ring 125 and the rotating cylinder seat 126 to rotate as a whole, so that the pressing component 129 is aligned with the glass target pressure area. Then, the second motor 1272 meshes with the driven gear 1274 through the second drive gear 1273, driving the long screw column 1275 to rotate, pushing the internal threaded sleeve 1276 to rise and fall vertically along the guide of the slide column 1277, driving the sliding plate 1278 to change its height position. The movement of the sliding plate 1278 synchronously drives the short screw column 1279 to rotate the internal threaded ring block 12710, so that the hollow gear 12711 meshes with the rack 12712 to move laterally, and finally drives the pressing component 129 to be precisely positioned in the bottom plane of the slot frame 128 through the shifting block 12713.

[0049] Third, adaptive pressure application and data acquisition:

[0050] When the force-applying screw 9 moves downward under the action of the driving component 7, the pressure is transmitted through the floating joint 11 to the ring block 121 of the pressure head mechanism 12, causing the first pressing component 1291 and the second pressing component 1292 of the pressing assembly 129 to contact the glass surface. During the continuous pressure application to the glass, the cold bending deformation of the glass causes the first pressing column 1295 or the second pressing column 1296 to move upward, and through the lever action of the transverse block 1294, it links the other pressing column to press downward, so that the arc-shaped rubber sheet always fits the curved glass. At this time, the pressure sensor 10 monitors the applied pressure value in real time, and The data is fed back to the control system. When testing large-size glass, the central control system synchronously coordinates two symmetrically arranged devices. By comparing the data of the pressure sensors 10 of the two devices in real time, the height difference between the two sets of nut-type lifting machines 3 can be dynamically adjusted to simulate the torsion condition of the glass under non-uniform load. Finally, the pressure data of each device, the displacement of the nut-type lifting machine 3 and the movement of the pressure column are integrated. Combined with the glass full-domain deformation profile collected by the external laser displacement sensor, a three-dimensional cloud map of cold bending load-bearing performance is generated to complete the loading test of the glass.

[0051] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A glass cold bending electric loading test device, comprising a base (1), a lower support (2) mounted above the base (1), and a nut-type lifting mechanism (3) provided on the rear middle side of the lower support (2), characterized in that: The nut-type lifting machine (3) has a support mechanism (4) locked and fixed at the front lifting end. The support mechanism (4) has sliding strips (5) slidably connected to the left and right sides of the rear part. The two sliding strips (5) are respectively fastened to the left and right sides of the front part of the lower bracket (2). The lower bracket (2) has an upper bracket (6) locked and fixed at the top. The upper bracket (6) has a drive component (7) installed on the rear side of the top of the upper bracket (6). The output shaft of the drive component (7) is connected to the pressure lifting body (8). The pressure lifting body (8) has a force-applying screw (9) running through it. The bottom of the lead screw (9) is provided with a pressure sensor (10), a floating joint (11) and a pressure head mechanism (12) from top to bottom. The support mechanism (4) includes a T-shaped carrier plate (41). The left and right sides of the rear of the T-shaped carrier plate (41) are fixedly connected with sliders (42). The left and right sides of the interior of the T-shaped carrier plate (41) are provided with strip grooves. The two strip grooves are respectively provided with a first pressure edge structure (43) and a second pressure edge structure (44) of the same structure and size. The two sliders (42) are slidably connected to the two slide bars (5). The first pressing structure (43) includes a column rod (431) disposed above the strip groove of the T-shaped carrier plate (41) and fastened to the T-shaped carrier plate (41) by bolts. A sleeve (432) is wrapped around the upper part of the outer surface of the column rod (431). A helical rack (433) is longitudinally fixed at the front of the sleeve (432). A sliding sleeve frame (434) is longitudinally slidable on the outer surface of the sleeve (432). A through groove is opened in the middle side of the inner side of the sliding sleeve frame (434). The through groove is slidably connected to the outside of the helical rack (433). The front of the helical rack (433) The side meshing transmission has a worm gear (435), and the bottom of the worm gear (435) is meshed with a worm (436). The front end of the worm (436) is coaxially rotated with a handle (437). The bottom front side of the sliding sleeve frame (434) is fixedly connected with a pressure plate (438). The worm gear (435) and the worm (436) are respectively rotatably connected to the upper and lower sides inside the sliding sleeve frame (434). The upper and lower sides of the sleeve (432) are provided with limit plates. The bottom of the pressure plate (438) has two T-slots opened laterally, and rubber strips are provided in both T-slots.

2. The electric loading test device for cold bending of glass according to claim 1, characterized in that: The pressure head mechanism (12) includes a ring block (121) connected to the floating joint (11) at the top center, a positioning cylinder seat (122) fixedly connected to the bottom of the ring block (121), a first motor (123) locked and fixed to the front center of the positioning cylinder seat (122), a first drive gear (124) connected to the bottom output shaft of the first motor (123), a gear ring (125) meshing with the rear side of the first drive gear (124), a rotating cylinder seat (126) fixedly connected to the bottom of the gear ring (125), and a rotating cylinder seat (126) set on the rotating cylinder seat (122). 26) The internal adjustment component (127), the slot frame (128) fixedly connected to the bottom of the rotating cylinder seat (126), and the pressing component (129) connected to the bottom end of the adjustment component (127) are all internally connected to the internal adjustment component (127). The rotating cylinder seat (126) rotates through the bottom inner side of the positioning cylinder seat (122). The left and right sides of the adjustment component (127) are fastened to the positioning cylinder seat (122). The bottom of the adjustment component (127) is slidably disposed inside the slot frame (128). The top side of the pressing component (129) is in sliding contact with the bottom of the slot frame (128).

3. The electric loading test device for cold bending of glass according to claim 2, characterized in that: The adjustment assembly (127) includes a support frame (1271) fastened to the positioning cylinder seat (122) on both the left and right sides, a second motor (1272) locked and fixed to the top right side of the support frame (1271), a second drive gear (1273) connected to the top output shaft of the second motor (1272), a driven gear (1274) meshing with the left side of the second drive gear (1273), a long screw column (1275) coaxially rotating on the bottom middle side of the driven gear (1274), an internal threaded sleeve (1276) threaded to the outer surface of the long screw column (1275), two sliding columns (1277) integrally formed on the front and rear sides of the top of the internal threaded sleeve (1276), a sliding plate (1278) connected to the bottom of the internal threaded sleeve (1276), a short screw column (1279) fixedly connected to the bottom middle side of the sliding plate (1278), and a threaded connection to the short screw column (1279). 9) An internally threaded ring block (12710) on the outer surface, a hollow gear (12711) fixed to the bottom side of the outer surface of the internally threaded ring block (12710), a rack (12712) meshing with the front side of the hollow gear (12711), and a shifting block (12713) locked to the front side of the rack (12712). The two sliding columns (1277) are respectively inserted and slid on the front and rear sides of the bottom of the support frame (1271). The position piece (1278) is connected to the rotating cylinder seat (126) on both the left and right sides. The internal threaded ring block (12710) rotates through the bottom of the rotating cylinder seat (126), and the hollow gear (12711) is disposed through the upper middle side of the rear part of the slot frame (128). The rack (12712) and the shift block (12713) are slidably disposed inside the slot frame (128), and the bottom of the shift block (12713) is connected to the pressing assembly (129).

4. The glass cold bending electric loading test device according to claim 3, characterized in that: The bottom of the internal threaded sleeve (1276) is provided with a chuck (12761), and a hollow groove is formed on the outer side between the internal threaded sleeve (1276) and the chuck (12761), and the sliding piece (1278) rotates and contacts the inside of the hollow groove.

5. The electric loading test device for cold bending of glass according to claim 3, characterized in that: The bottom of the rotary drum seat (126) is provided with two guide rods in the longitudinal direction, and the sliding plate (1278) has round openings on the left and right sides, which are wrapped around the outer surface of the guide rods.

6. The electric loading test device for cold bending of glass according to claim 3, characterized in that: The bottom of the shift block (12713) is provided with a protrusion, and the protrusion slides through the bottom side of the slot frame (128). The bottom end of the protrusion is fastened to the pressing component (129), and the top side of the pressing component (129) slides in contact with the slot frame (128).

7. The glass cold bending electric loading test device according to claim 2, characterized in that: The pressing assembly (129) includes two sets of first pressing components (1291) and second pressing components (1292). The second pressing component (1292) is fixed to the right side of the first pressing component (1291). The two sets of first pressing components (1291) and second pressing components (1292) are arranged symmetrically front and back. A connecting post (1293) is fixed above the connection between the first pressing component (1291) and the second pressing component (1292). The top of the connecting post (1293) is connected to the adjusting assembly (127). A transverse sliding block (1294) is slidably provided on the upper side of the inside of the first pressing component (1291) and the second pressing component (1292). The bottom left and right sides of the transverse sliding block (1294) are respectively in contact with the first pressing post (1295) and the second pressing post (1296).

8. The glass cold bending electric loading test device according to claim 7, characterized in that: The bottom ends of the first pressure column (1295) and the second pressure column (1296) are provided with arc-shaped rubber sheets. The first positioning head (12941) slides through the middle of the transverse block (1294). The first pressure column (1295) and the second pressure column (1296) are both arranged longitudinally. The second positioning head (12951) slides through the middle of the first pressure column (1295), and the third positioning head (12961) slides through the middle of the second pressure column (1296). The first positioning head (12941), the second positioning head (12951) and the third positioning head (12961) are all located inside the first pressing component (1291) and the second pressing component (1292).

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