Glass cold bending test electric loading device and test method

Abstract

The invention discloses a glass cold bending test electric loading device and a test method.The device comprises a base, a fixing support, a pressure loading test piece, a lifting component, a loading integrated piece and a control unit, the fixing support is adjustably installed on the base, the pressure loading test piece is arranged at the top end of the fixing support, and the lifting component is arranged on the loading integrated piece; the pressure loading test piece is used for providing extrusion stress for a glass cold bending test and outputting stress data, the lifting component is installed on the fixed support, the loading integrated piece is arranged below the pressure loading test piece and installed on the lifting component through a connecting part, and the loading integrated piece is used for providing various glass cold bending loading modes. And the pressure loading test piece and the lifting component are electrically connected with the control unit. The pressure loading test piece connected with the control unit is introduced, and the lifting component and the loading integrated piece are matched, so that the loading synchronism, precision and test safety are improved, the data acquisition accuracy is ensured, the test efficiency is improved, and the device is suitable for cold bending test loading of various different forms.

Description

Technical Field

[0001] The invention relates to the technical field of glass production testing, and in particular to an electric loading device and a testing method for glass cold bending testing. Background Art

[0002] With the continuous innovation and breakthroughs in modern architectural design, architects have an increasing demand for complex shapes such as curved surfaces, hyperbolic surfaces and free-form surfaces, and the application of curved glass has become more and more common. However, the processing of these special shapes of 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, the cold-bent glass process has gradually attracted attention. Through computer-aided design and other means, the feasibility of the cold-bent glass process is evaluated and the processing process is optimized.

[0003] In the existing technical system, although the cold-bent glass process has advantages in cost-effectiveness and processing flexibility, it still has many uncertainties and shortcomings in terms of safety and quality control:

[0004] 1. Insufficient loading synchronization and accuracy: The traditional manual loading method is difficult to achieve accurate synchronous control of multi-point loading, resulting in limited accuracy of test data and difficulty in truly reflecting the stress changes during the cold bending process of glass;

[0005] 2. There are great safety hazards: In the manual loading process of traditional loading devices, the stable changes of glass pressure are difficult to grasp, which may cause accidents such as breakage and explosion, posing a threat to the personal safety of operators. Especially when performing extreme test loading, the brittle failure characteristics of glass exacerbate this risk;

[0006] 3. Limited accuracy of data collection: The accuracy and continuity of test data are highly dependent on the stability of the loading method. Traditional manual loading is prone to large fluctuations in test data due to unstable loading rates, making it difficult to ensure data reliability.

[0007] 4. Limited test efficiency and adaptability: Traditional test loading devices are difficult to adapt to various forms of cold bending tests, such as long-side cold bending, corner cold bending, columnar cold bending, etc. They have limitations and the test efficiency is relatively low, making it difficult to meet diverse testing needs. Summary of the invention

[0008] In view of this, the present invention aims to address the deficiencies in the prior art, and its main purpose is to provide an electric loading device and testing method for glass cold bending testing, which solves the technical problems of insufficient loading synchronization and accuracy of the glass cold bending loading device, major safety hazards in manual loading, limited data collection accuracy, low testing efficiency, and difficulty in adapting to various different forms of cold bending tests.

[0009] To achieve the above purpose, the present invention adopts the following technical solutions:

[0010] The present invention provides an electric loading device for glass cold bending test, comprising:

[0011] Base;

[0012] a fixed bracket, adjustably mounted on the base;

[0013] A pressure-loaded test piece, arranged at the top of the fixed bracket, is used to provide extrusion stress for the glass cold bending test and output stress data;

[0014] A lifting member, mounted on the fixed bracket;

[0015] A loading integrated component is arranged below the pressure loading test piece and is mounted on the lifting member through a connecting component, the lifting member is used to drive the loading integrated component to lift, and the loading integrated component is used to provide a variety of glass cold bending loading modes, including long side cold bending, corner point cold bending and columnar cold bending;

[0016] A control unit is electrically connected to the pressure-loading test piece and the lifting component.

[0017] As a preferred embodiment, the pressure loading test piece includes a first driving component, a pressure lifting rod and a pressure loading component, the first driving component is installed at the top of the fixed bracket, the transmission end of the first driving component is connected to the pressure lifting rod through a first conversion component, the pressure loading component is installed at one end of the pressure lifting rod away from the first driving component, the pressure lifting rod is used to drive the pressure loading component to rise and fall, the pressure loading component is arranged directly above the loading integrated component, the pressure loading component includes a pressure sensor, a hinge and a pressure head, the pressure sensor is fixedly installed at one end of the lifting rod and connected to the pressure head through the hinge.

[0018] As a preferred solution, the lifting component includes a second driving component, a loading lifting rod and a first guide block, a mounting cavity is provided on a side of the fixed bracket close to the base, the loading lifting rod is arranged in the mounting cavity and is rotatably connected to the fixed bracket, the second driving component is installed at one end of the fixed bracket close to the base, the transmission end of the second driving component is connected to the loading lifting rod through a second conversion component, the first guide block is installed on the loading lifting rod and is screwed with the loading lifting rod, the end of the connecting component away from the loading integrated component is fixedly connected to the first guide block, the fixed bracket is also equipped with a guide slide bar, the guide slide bar is arranged on both sides of the mounting cavity, the side of the connecting component close to the first guide block is also equipped with a guide slider adapted to the guide slide bar, the guide slider is slidably installed on the guide slide bar, the guide slide bar is arranged in parallel with the loading lifting rod, the loading integrated component can reciprocate along the axial length direction of the loading lifting rod, the control unit is also electrically connected to the loading integrated component, and the base is also provided with an avoidance groove corresponding to the loading integrated component.

[0019] As a preferred solution, the loading integrated component comprises:

[0020] A base frame, adjustably mounted on a side of the connecting component away from the first guide block;

[0021] A mounting plate, mounted on the base frame, and forming a containing cavity together with the base frame;

[0022] A top block, movably disposed on the mounting plate;

[0023] A columnar loading member, detachably mounted on the mounting plate and disposed on the outer peripheral side of the top block;

[0024] A long side loading member, which is a lifting and adjustable member, is disposed in the accommodating inner cavity and mounted on the base frame, and the mounting plate is further provided with a first avoidance through hole corresponding to the lifting end of the long side loading member, and the lifting end of the long side loading member passes through the first avoidance through hole and is fixedly connected to the top block;

[0025] A corner loading member is installed on a side of the base frame away from the columnar loading member and is electrically connected to the control unit.

[0026] As a preferred solution, a first mounting groove is opened on the mounting plate, the first mounting groove is arranged on both sides of the top block, the columnar loading member is installed on the first mounting groove by adjusting the connecting piece, and the lifting height of the long side loading member is greater than the axial length of the columnar loading member.

[0027] As a preferred scheme, the long side loading component includes a mounting seat, an adjusting screw and a connecting seat, a first arm and a second arm are provided on both sides of the mounting seat, the mounting seat is installed on the base frame, one end of the first arm is hinged to the middle part of the mounting seat, and the other end is hinged to one end of the second arm through a pin member, and the other end of the second arm is hinged to the connecting seat, the connecting seat is arranged below the top block, and the end of the connecting seat away from the mounting seat is fixedly connected to the top block through a top head, the adjusting screw is sequentially passed through and installed on the two pin members and screwed with the two pin members, the two pin members are each provided with a mounting hole corresponding to the adjusting screw, the mounting hole is each provided with an internal thread, and the thread directions of the internal threads on the two pin members are opposite.

[0028] As a preferred embodiment, the corner point loading component includes a ball part, a first plate group and a second plate group, the ball part is arranged between the first plate group and the second plate group, a corner point column is protruding from the side of the ball part away from the second plate group, the corner point column passes through the first plate group and is installed on the base frame, a pressure sensing component is also provided at one end of the corner point column installed on the base frame, the pressure sensing component is electrically connected to the control unit, the first plate group and the second plate group are connected by a detachable connecting part, and the second plate group is used to clamp the glass to be tested.

[0029] 4. The repairing kit for automotive dents, according to claim 1, wherein the two trackbacks are connected along the vertical folding path, and the trackbacks are connected along the vertical folding path.

[0030] As a preferred solution, connecting screws are provided on both sides of the connecting plate, and the connecting plate is fixedly connected to the end of the limiting rod away from the supporting plate through the connecting screws. The two ends of the side of the base frame close to the supporting plate are protruding with engaging blocks that are compatible with the reinforcing ribs. The side where the reinforcing ribs are close to each other is also provided with a supporting protrusion, and the engaging block is provided with an engaging groove that is compatible with the supporting protrusion.

[0031] A glass cold bending test method of the present invention is applied to the glass cold bending test electric loading device, comprising the following steps:

[0032] S01, selecting a glass to be tested, and performing modeling and cold bending simulation analysis on the glass to be tested, obtaining analysis results, and determining a theoretical cold bending variation law;

[0033] S02, based on the analysis result and the theoretical cold bending variation law, calculating the specific cold bending amount required for the cold bending of the glass to be tested and the pressure value corresponding to the cold bending amount;

[0034] S03, inputting the cold bending amount and the pressure value into the control unit, determining the glass cold bending loading mode of the electric loading device for the glass cold bending test, and presetting the number of cyclic loading times;

[0035] S04, determining a loading point of the electric loading device for the glass cold bending test on the glass to be tested based on the glass cold bending loading method;

[0036] S05, loading and fixing the glass to be tested by using a plurality of electric loading devices for the glass cold bending test according to the loading points;

[0037] S06, controlling the glass cold bending test electric loading device to perform cold bending loading on the glass to be tested step by step through the control unit, monitoring and adjusting the travel amount and loading pressure value of each loading point in real time, and releasing the load on the glass to be tested after completing a round of loading on the glass to be tested, and recording stress test data;

[0038] S07, repeating step S06 until the preset number of cyclic loading times is reached;

[0039] S08, comparing and analyzing the multiple stress test data of the cyclic test with the stress test data of the first pressurization process to obtain the actual cold bending deformation law, stress distribution characteristics and potential risk points of the glass to be tested.

[0040] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical scheme that it mainly introduces a pressure-loaded test piece connected to the control unit, cooperates with the lifting component, accurately controls the speed and force output of the loading process, ensures the synchronization of multiple loading points or loading directions, and monitors and adjusts the loading parameters in real time during the loading process, significantly improves the loading accuracy and the accuracy and reliability of the test results. While realizing automatic control, it avoids the safety risks brought by human operation, reduces the need for personnel to directly participate in the test process, and further improves the safety of the test environment. The setting of the rotatable and adjustable loading assembly and connecting components enables the electric loading device to adapt to a variety of different forms of cold bending test loading, and is widely used in the research and development and quality control of various cold bending forming processes, which not only expands the scope of application of the device, but also significantly improves the utilization rate and test efficiency of the loading device.

[0041] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 Schematic diagram of the structure of the electric loading device for glass cold bending test in Example 1 of the present application;

[0043] Figure 2 It is a structural schematic diagram of an electric loading device for cold bending test of glass from another perspective of Example 1 of the present application;

[0044] Figure 3 It is a schematic diagram of the structure decomposition of the electric loading device for glass cold bending test in Example 1 of the present application;

[0045] Figure 4 It is a schematic diagram of the structure decomposition of the electric loading device for cold bending test of glass from another perspective of Example 1 of the present application;

[0046] Figure 5 It is a schematic diagram of the structure decomposition of the loading integrated component of Example 1 of the present application;

[0047] Figure 6 is a schematic diagram of the structure decomposition of the loading integrated component from another perspective of Example 1 of the present application;

[0048] Figure 7 It is a structural schematic diagram of an electric loading device for glass cold bending test switched to a corner cold bending loading mode in Example 1 of the present application;

[0049] Figure 8 This is a flow chart of the glass cold bending test method of Example 2 of the present application.

[0050] Description of reference numerals:

[0051] 10. Base; 11. Fixed bracket; 111. Installing cavity; 112. Guide strip; 12. Avoidance groove;

[0052] 20. pressure-loading test piece; 21. first driving component; 22. pressure-applying lifting rod; 23. pressure-loading component; 231. pressure sensing component; 232. hinged component; 233. pressure head; 24. first conversion component;

[0053] 30. lifting member; 31. second driving member; 32. loading lifting rod; 33. first guide block; 34. second conversion member;

[0054] 40. Loading integrated component; 41. Base frame; 411. First assembly through hole; 412. Fitting block; 413. Fitting groove; 42. Mounting plate; 421. First avoidance through hole; 422. First mounting through groove; 43. Top block; 44. Column loading member; 441. Adjusting connecting member; 45. Long side loading member; 451. Mounting seat; 452. Adjusting screw; 453. Connecting seat; 454. First arm; 455. Second arm; 456. Pin member; 457. Top head; 46. Corner point loading member; 461. Ball member; 462. First plate group; 463. Second plate group; 464. Corner point column;

[0055] 50, connecting member; 51, guide slider; 52, bearing plate; 521, mounting convex strip; 522, reinforcing rib; 523, position-limiting mounting groove; 524, supporting convex block; 53, mounting rod; 54, connecting plate; 55, elastic member; 56, position-limiting rod; 57, position-limiting member; 58, connecting screw;

[0056] 60. Accommodate the inner cavity. DETAILED DESCRIPTION

[0057] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and implementation examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0058] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0059] With the surge in demand for complex curved glass in the field of architectural design, the cold-bending glass process has become a focus due to its cost-effectiveness and processing flexibility. However, the process still faces challenges in terms of safety and quality control: First, the problems of loading synchronization and accuracy are prominent. Traditional manual loading is difficult to ensure precise control of multi-point synchronization, which limits the accuracy of stress change monitoring; second, safety hazards cannot be ignored. The pressure fluctuation of the glass during manual loading is difficult to accurately control, which increases the risk of glass breakage and poses a potential threat to the safety of operators; third, the accuracy of data acquisition is limited, and the instability of the loading rate leads to fluctuations in test data, affecting data reliability; finally, the test efficiency and adaptability are insufficient. Traditional devices are difficult to flexibly respond to diverse cold bending test needs, such as long edge, corner and columnar cold bending, and the test efficiency is low, which is difficult to meet the rapid development of the industry. Testing requirements.

[0060] In order to solve the above problems, an embodiment of the present invention provides an electric loading device and a testing method for a glass cold bending test.

[0061] Embodiment 1:

[0062] See also Figures 1 to 7 Embodiment 1 of the present invention provides an electric loading device for glass cold bending test, comprising:

[0063] The base 10 serves as the basic support of the entire testing device to ensure stability and accuracy during the testing process.

[0064] The fixed bracket 11 is adjustably mounted on the base 10, so as to facilitate position adjustment according to test requirements and enhance test flexibility.

[0065] The pressure loading test piece 20 is arranged on the top of the fixed bracket 11, and is used to provide controllable extrusion stress for the glass cold bending test, and output accurate stress data in real time, providing a reliable basis for analysis.

[0066] The lifting member 30 is mounted on the fixing bracket 11 .

[0067] The loading assembly 40 is arranged below the pressure loading test piece 20 and is installed on the lifting component 30 through the connecting component 50. The lifting component 30 is used to drive the loading assembly 40 to lift and lower, realize the vertical movement of the loading assembly 40, and ensure the smoothness and accuracy of the loading process. The loading assembly 40 is used to provide a variety of glass cold bending loading methods, and the glass cold bending loading methods include long-side cold bending, corner cold bending and columnar cold bending. Among them, the long-side cold bending is used to evaluate the ductility of the glass to be tested, the corner cold bending simulates complex stress conditions, and the columnar cold bending tests the local compressive resistance.

[0068] The control unit is electrically connected to the pressure-loaded test piece 20 and the lifting member 30 to realize remote control and automated test process, ensure synchronous loading accuracy, improve test efficiency and safety, and ensure accurate control and recording of test parameters.

[0069] It should be noted that the design of the connecting component 50 allows the loading integrated component 40 to quickly switch the glass cold bending loading mode.

[0070] In this example, see Figure 1 and Figure 2 The pressure loading test piece 20 includes a first driving component 21, a pressure lifting rod 22 and a pressure loading component 23. The first driving component 21 is installed at the top of the fixed bracket 11 to ensure a stable foundation for the test. The transmission end of the first driving component 21 is connected to the pressure lifting rod 22 through a first conversion component 24. The first conversion component 24 is used to convert the rotational power of the first driving component 21 into the lifting power of the pressure lifting rod 22, so as to achieve efficient transmission and conversion of power, ensure precise control and smooth operation of the lifting process, and ensure the uniformity and stability of pressure application during the test. The pressure loading component 23 is installed at one end of the pressure lifting rod 22 away from the first driving component 21. The pressure lifting rod 22 is used to drive the pressure loading component 23 to lift and lower. The pressure loading component 23 is arranged on the loading integrated component 40 , while optimizing the test space utilization, it also ensures the linearity and efficiency of pressure transmission, so that the pressure can directly and efficiently act on the glass to be tested. The pressure loading component 23 includes a pressure sensor 231, a hinge 232 and a pressure head 233. The pressure sensor 231 is fixedly mounted on one end of the lifting rod and is connected to the pressure head 233 through the hinge 232. The design of the pressure sensor 231 can accurately monitor and feedback the applied pressure value in real time, providing an important basis for the accurate collection and analysis of test data. The hinged design allows the pressure head 233 to be fine-tuned according to the shape of the glass surface to be tested when applying pressure, ensuring the uniformity of pressure distribution, effectively avoiding the occurrence of local stress concentration, enhancing the flexibility and adaptability of the overall device, and improving the accuracy and reliability of the test.

[0071] See also Figure 2 and Figure 4The lifting component 30 includes a second driving component 31, a loading lifting rod 32 and a first guide block 33. A mounting cavity 111 is provided on one side of the fixed bracket 11 close to the base 10. The loading lifting rod 32 is arranged in the mounting cavity 111 and is rotatably connected to the fixed bracket 11. The second driving component 31 is installed at one end of the fixed bracket 11 close to the base 10. The transmission end of the second driving component 31 is connected to the loading lifting rod 32 through a second conversion component 34. The first guide block 33 is installed on the loading lifting rod 32 and is screwed with the loading lifting rod 32. The end of the component 50 away from the loading integrated component 40 is fixedly connected to the first guide block 33, and a guide slide bar 112 is also installed on the fixed bracket 11. The guide slide bar 112 is arranged on both sides of the installation cavity 111. A guide slider 51 adapted to the guide slide bar 112 is also installed on the side of the connecting component 50 close to the first guide block 33. The guide slider 51 is slidably installed on the guide slide bar 112. The guide slide bar 112 is arranged in parallel with the loading lifting rod 32. The loading integrated component 40 can reciprocate along the axial length direction of the loading lifting rod 32, ensuring the linearity of the lifting path. Among them, the fixed connection between the connecting component 50 and the first guide block 33 ensures the stability and reliability of the loading integrated component 40 during the lifting process, and realizes the effective transmission of force. The adaptive design of the guide slide bar 112 and the guide slider 51 enables the connecting component 50 to slide smoothly during the lifting process, reducing friction and resistance, and improving the overall operating efficiency. At the same time, the parallel arrangement of the guide slide bar 112 and the loading lifting rod 32 further enhances the stability and consistency of the lifting system. The control unit is also electrically connected to the loading assembly 40. The base 10 is also provided with an avoidance groove 12 corresponding to the loading assembly 40, which serves as a channel on the lifting path of the loading assembly 40 to ensure smooth lifting and unobstructed movement, avoid interference with the structure of the base 10, and also provide convenience for maintenance and inspection of the device.

[0072] See also Figure 5 and Figure 6 , the loading integrated component 40 comprises:

[0073] The base frame 41 is adjustably mounted on a side of the connecting component 50 away from the first guide block 33. The adjustable mounting ensures that the loading integrated component 40 can select a glass cold bending loading method according to requirements to meet different test requirements.

[0074] The mounting plate 42 is mounted on the base frame 41 , and together with the base frame 41 forms an accommodating inner cavity 60 .

[0075] The top block 43 is movably arranged on the mounting plate 42 and is used for cold bending of the long side glass.

[0076] The columnar loading member 44 is detachably mounted on the mounting plate 42 and is disposed on the outer peripheral side of the top block 43 to optimize the spatial layout and make the overall structure compact.

[0077] The long side loading member 45 is a lifting and adjustable member. The long side loading member 45 is arranged in the accommodating inner cavity 60 and is installed on the base frame 41. The mounting plate 42 is also provided with a first avoidance through hole 421 corresponding to the lifting end of the long side loading member 45. The lifting end of the long side loading member 45 passes through the first avoidance through hole 421 and is fixedly connected to the top block 43. The long side loading member 45 and the top block 43 work together to realize the loading and adjustment of the glass to be tested that is to be cold-bent on the long side. At the same time, the design of the first avoidance through hole 421 also avoids the interference between the long side loading member 45 and the mounting plate 42 during the lifting process, thereby ensuring the smooth lifting action.

[0078] The corner loading component 46 is installed on the side of the base frame 41 away from the columnar loading component 44 and is electrically connected to the control unit to achieve precise loading and control of the corner points of the glass to be tested. The design of electrical connection with the control unit realizes intelligent regulation and monitoring of its loading force, thereby improving the accuracy and safety of the loading process.

[0079] Specifically, the mounting plate 42 is provided with a first mounting slot 422, which is arranged on both sides of the top block 43, and the columnar loading member 44 is installed on the first mounting slot 422 by adjusting the connecting piece 441. The design of the first mounting slot 422 optimizes the spatial layout and provides a convenient channel for the installation of the columnar loading member 44, while the setting of the adjusting connecting piece 441 enables the columnar loading member 44 to be stably installed on the mounting plate 42. This installation method not only ensures the stability of the loading member, but also facilitates rapid adjustment and replacement according to test requirements. It is worth noting that the lifting height of the long side loading member 45 is greater than the axial length of the columnar loading member 44. This design consideration enables the long side loading member 45 to completely cover and exceed the loading range of the columnar loading member 44 during the lifting process, thereby achieving coverage loading in the long side direction of the glass to be tested, ensuring that the long side cold bending can be carried out normally. This height difference not only enhances the flexibility of loading, but also ensures that the glass to be tested can be evenly and stably supported and loaded under different loading requirements, effectively improving the accuracy and efficiency of the loading process.

[0080] The long side loading component 45 includes a mounting seat 451, an adjusting screw 452 and a connecting seat 453. A first arm 454 and a second arm 455 are provided on both sides of the mounting seat 451. The mounting seat 451 is installed on the base frame 41. One end of the first arm 454 is hinged to the middle of the mounting seat 451, ensuring that the first arm 454 can rotate stably when subjected to force and transmit force to the loading point at the same time. The other end is hinged to one end of the second arm 455 through a pin member 456. This connection method is not only simple and reliable, but also convenient for adjusting the relative position between the two to adapt to different loading requirements. The other end of the second arm 455 is hingedly mounted on the connecting seat 453. This structure enables the entire long side loading component 45 to maintain a stable posture during the lifting process, effectively reducing the loading error caused by vibration or offset. The connecting seat 453 is set on the top block 43, one end of the connecting seat 453 away from the mounting seat 451 is fixedly connected to the top block 43 through the top head 457, ensuring the direct and accurate transmission of the loading force. The adjusting screw 452 serves as the adjustment core of the entire long side loading component 45. It is successively installed on the two pin members 456 and screwed with the two pin members 456. By rotating the adjusting screw 452, the angle between the first arm 454 and the second arm 455 can be accurately adjusted, thereby controlling the lifting height and loading force of the long side loading component 45. The two pin members are each provided with a mounting hole corresponding to the adjusting screw 452, and the mounting hole is provided with an internal thread. The thread directions of the internal threads on the two pin members are opposite. This design enables the adjusting screw 452 to simultaneously drive the two pin members 456 to move in opposite directions when rotating, thereby realizing precise and stable lifting and lowering adjustment.

[0081] The design of the corner loading component 46 is intended to achieve accurate loading and pressure monitoring of the corners of the glass edge. The corner loading component 46 includes a ball 461, a first plate group 462 and a second plate group 463. The ball 461 is arranged between the first plate group 462 and the second plate group 463. A corner column 464 is convexly provided on the side of the ball 461 away from the second plate group 463. The corner column 464 passes through the first plate group 462 and is installed on the base frame 41, so that the loading force can accurately act on the edge corner of the glass to be tested, simulating the stress conditions in actual use. A pressure sensor is also provided at one end of the corner column 464 installed on the base frame 41. The pressure sensor is electrically connected to the control unit, so that the pressure changes during the loading process can be captured in real time and accurately, providing a reliable basis for subsequent data analysis and adjustment. The first plate group 462 and the second plate group 463 are connected by a detachable connector, and the second plate group 463 is used to clamp the glass to be tested. It should be noted that the design of the detachable connector is a key component to ensure the structural stability of the corner loading member 46 when switching the glass cold bending loading mode. Specifically, when the corner cold bending is not selected, the corner loading member 46 is located below the columnar loading member 44, and the first plate group 462 and the second plate group 463 are connected to form a stable whole through the detachable connector to ensure the integrity of the overall structure of the electric loading device. Figure 7 When corner cold bending is selected, the loading integration part 40 is rotated, the corner loading component 46 is located above the columnar loading component 44, and the detachable connecting part is operated to disconnect the fixed connection relationship between the first plate group 462 and the second plate group 463 to ensure that the cold bending function of the corner loading component 46 can be used normally.

[0082] For further information, see Figure 3 and Figure 4The connecting component 50 includes a bearing plate 52, a mounting rod 53, a connecting plate 54 and an elastic member 55. One side of the bearing plate 52 is fixedly connected to the first guide block 33 to ensure the rigidity and accuracy of the overall structure. A mounting ridge 521 is convexly provided on the other side. Reinforcing ribs 522 are provided on both sides of the mounting ridge 521 to significantly improve the structural strength and stability. The mounting rod 53 is fixedly installed in the middle of the side of the mounting ridge 521 away from the bearing plate 52, serving as the main axis for the installation of the base frame 41, to ensure the accuracy of the installation and the rotation adjustment of the loading integrated component 40. A limited mounting groove 523 is also provided on the side of the mounting ridge 521 away from the bearing plate, and the limited mounting groove 523 is symmetrically arranged on the mounting On both sides of the rod 53, a first assembly through hole 411 compatible with the mounting rod 53 is opened on the base frame 41, and the base frame 41 is movably installed on the mounting rod 53 to ensure the flexibility and reliability of the connection. Limiting rods 56 compatible with the limiting mounting grooves 523 are also movably installed on both sides of the base frame 41. One end of the two limiting rods 56 is movably installed on the limiting mounting grooves 523, and the other end passes through the base frame 41 and is fixedly connected through a connecting plate 54. The connecting plate 54 is sleeved and installed on the mounting rod 53. A limiting member 57 is also installed on the end of the mounting rod 53 away from the load-bearing plate 52. The elastic member 55 is sleeved and installed on the mounting rod 53 and is located between the limiting member 57 and the connecting plate 54. Here, the design of the position-limiting installation groove 523 provides a precise positioning point for the installation of the position-limiting rod 56, which not only ensures the rotation adjustment of the loading integrated component 40, but also ensures the stability of the position of the loading integrated component 40 after the adjustment is completed, avoiding position offset and shaking, and the design of the connecting plate 54 and the elastic member 55 ensures the rapid switching of the glass cold bending loading mode. Specifically, when the corner cold bending mode is required, the elastic member 55 is compressed by pulling the connecting plate 54, and at the same time, the position-limiting rod 56 is separated from the position-limiting installation groove 523, and then the loading integrated component 40 is rotated to make the corner loading component 46 located above the columnar loading component 44, and then the connecting plate 54 is released, the elastic member 55 is reset, driving the connecting plate 54 to reset, and the position-limiting rod 56 is reinserted and installed in the position-limiting installation groove 523, so that the glass cold bending loading mode is switched.

[0083] Furthermore, connecting screws 58 are provided on both sides of the connecting plate 54, and the connecting plate 54 is fixedly connected to the end of the limiting rod 56 away from the supporting plate 52 through the connecting screws 58, which improves the stability of the structural connection and is also convenient for later maintenance and replacement. The two ends of the side of the base frame 41 close to the supporting plate 52 are convexly provided with engaging blocks 412 compatible with the reinforcing ribs 522, so that the base frame 41 can be accurately and quickly docked with the supporting plate 52 during the installation process, reducing installation errors and adjustment time, and a supporting protrusion 524 is also provided on the side where the reinforcing ribs 522 are close to each other, and an engaging groove 413 compatible with the supporting protrusion 524 is opened on the engaging block 412. The precise matching of the supporting protrusion 524 and the engaging groove 413 not only provides an additional support point for the base frame 41, but also effectively reduces the load pressure of the reinforcing rib 522 by dispersing stress, thereby extending the service life of the overall structure. At the same time, this design also improves the deformation resistance of the base frame 41 when subjected to external forces, ensuring the stability and safety of the overall structure.

[0084] Embodiment 2:

[0085] See also Figure 8 Embodiment 2 of the present invention provides a glass cold bending test method, which is applied to a glass cold bending test electric loading device, comprising the following steps:

[0086] S01, selecting the glass to be tested, and performing modeling and cold bending simulation analysis on the glass to be tested, obtaining analysis results, and determining theoretical cold bending change rules.

[0087] Specifically, after the specification and model of the glass to be tested is selected, it is necessary to obtain the theoretical external force load combination and internal stress state of the glass to be tested of this specification and model from the outside, and perform a comprehensive analysis based on the theoretical external force load combination and internal stress state, and reversely infer the cold bending calculation theory and method of the glass to be tested, and then based on this, modeling and simulation analysis are performed on the cold bending process of the glass to be tested to obtain the analysis results and determine the theoretical cold bending change law.

[0088] Through precise modeling and simulation analysis, this step can pre-evaluate the behavior pattern of glass during the cold bending test, provide a theoretical basis and expected goals for subsequent tests, and ensure the pertinence and effectiveness of the test.

[0089] S02, based on the analysis results and the theoretical cold bending variation law, calculate the specific cold bending amount required for the cold bending of the glass to be tested, and the pressure value corresponding to the cold bending amount.

[0090] It should be noted that the determination of the cold bending amount and pressure values ​​ensures the controllability of the subsequent cold bending test process and the accuracy of the test results.

[0091] S03, inputting the cold bending amount and pressure values ​​into the control unit, determining the glass cold bending loading mode of the electric loading device for the glass cold bending test, and presetting the number of cyclic loading times.

[0092] Through parameter input and loading mode setting, specific operating instructions are configured for the loading device to ensure the automation and standardization of the test process. At the same time, the preset number of cyclic loading times provides sufficient sample volume for subsequent data analysis.

[0093] S04, based on the glass cold bending loading method, determining the loading point of the glass cold bending test electric loading device on the glass to be tested.

[0094] Here, the loading points are selected according to the glass cold bending loading method. By optimizing the layout of the loading points, the balanced distribution of force during the loading process is achieved, avoiding test errors or glass damage caused by local stress concentration, and improving the accuracy and safety of the cold bending test.

[0095] S05, according to the loading points, the glass to be tested is loaded and fixed by using multiple glass cold bending test electric loading devices.

[0096] Through multi-point fixation, the stability of the glass to be tested during the test is ensured, the measurement error caused by displacement or shaking is reduced, and reliable support is provided for subsequent cold bending loading.

[0097] S06, control the electric loading device of the glass cold bending test through the control unit to perform step-by-step cold bending loading on the glass to be tested, monitor and adjust the travel amount and loading pressure value of each loading point in real time, and release the load on the glass to be tested after one round of loading is completed, and record the stress test data.

[0098] It should be made clear that step-by-step loading and real-time monitoring can ensure fine control of the glass cold bending process and the continuity and accuracy of the test data. The load release operation helps to observe the elastic recovery characteristics of the glass and provides a basis for a comprehensive evaluation of the performance of the glass to be tested.

[0099] S07, repeat step S06 until a preset number of cyclic loading times is reached.

[0100] Through multiple cycles of loading, the stability and reliability of the test results are enhanced, which helps to discover the stable performance and potential problems of the glass under different loading conditions.

[0101] S08, comparing and analyzing the multiple stress test data of the cyclic test with the stress test data of the first pressurization process, to obtain the actual cold bending deformation law, stress distribution characteristics and potential risk points of the glass to be tested.

[0102] This step, through comparative analysis, deeply reveals the mechanical behavior characteristics of the glass to be tested during the cold bending process, providing a scientific reference for optimizing product design and improving production processes.

[0103] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric loading device for glass cold bending test, characterized in that: include: Base (10); A fixed bracket (11) adjustably mounted on the base (10); A pressure-loaded test piece (20), arranged at the top of the fixed support (11), is used to provide extrusion stress for a glass cold bending test and output stress data; A lifting member (30) mounted on the fixing bracket (11); A loading integrated component (40) is arranged below the pressure loading test piece (20) and is mounted on the lifting component (30) via a connecting component (50); the lifting component (30) is used to drive the loading integrated component (40) to move up and down; the loading integrated component (40) is used to provide a plurality of glass cold bending loading modes, the glass cold bending loading modes including long side cold bending, corner point cold bending and columnar cold bending; A control unit is electrically connected to the pressure loading test piece (20) and the lifting member (30).

2. The electric loading device for glass cold bending test according to claim 1 is characterized in that: The pressure loading test piece (20) comprises a first driving component (21), a pressure lifting rod (22) and a pressure loading component (23), wherein the first driving component (21) is mounted on the top of the fixed bracket (11), the transmission end of the first driving component (21) is connected to the pressure lifting rod (22) through a first conversion component (24), the pressure loading component (23) is mounted on one end of the pressure lifting rod (22) away from the first driving component (21), the pressure lifting rod (22) is used to drive the pressure loading component (23) to rise and fall, the pressure loading component (23) is arranged directly above the loading integrated component (40), the pressure loading component (23) comprises a pressure sensor (231), a hinge (232) and a pressure head (233), the pressure sensor (231) is fixedly mounted on one end of the lifting rod and is connected to the pressure head (233) through the hinge (232).

3. The electric loading device for glass cold bending test according to claim 1 is characterized in that: The lifting component (30) comprises a second driving component (31), a loading lifting rod (32) and a first guide block (33); a mounting cavity (111) is provided on a side of the fixed bracket (11) close to the base (10); the loading lifting rod (32) is arranged in the mounting cavity (111) and is rotatably connected to the fixed bracket (11); the second driving component (31) is installed at one end of the fixed bracket (11) close to the base (10); a transmission end of the second driving component (31) is connected to the loading lifting rod (32) via a second conversion component (34); the first guide block (33) is installed on the loading lifting rod (32) and is screwed to the loading lifting rod (32); an end of the connecting component (50) away from the loading integrated component (40) The fixing bracket (11) is fixedly connected to the first guide block (33), and a guide slide bar (112) is also installed on the fixing bracket (11), and the guide slide bar (112) is arranged on both sides of the installation cavity (111). A guide slider (51) adapted to the guide slide bar (112) is also installed on the side of the connecting component (50) close to the first guide block (33), and the guide slider (51) is slidably installed on the guide slide bar (112), and the guide slide bar (112) is arranged in parallel with the loading lifting rod (32). The loading integrated component (40) can reciprocate along the axial length direction of the loading lifting rod (32), and the control unit is also electrically connected to the loading integrated component (40). The base (10) is also provided with an avoidance groove (12) corresponding to the loading integrated component (40).

4. The electric loading device for glass cold bending test according to claim 3 is characterized in that: The loading integrated component (40) comprises: A base frame (41) is adjustably mounted on a side of the connecting component (50) away from the first guide block (33); A mounting plate (42) mounted on the base frame (41) and forming a receiving cavity (60) together with the base frame (41); A top block (43) movably disposed on the mounting plate (42); A columnar loading member (44) is detachably mounted on the mounting plate (42) and is disposed on the outer peripheral side of the top block (43); A long side loading member (45), the long side loading member (45) is a lifting and adjustable member, the long side loading member (45) is arranged in the accommodating inner cavity (60) and is installed on the base frame (41), the mounting plate (42) is also provided with a first avoidance through hole (421) corresponding to the lifting end of the long side loading member (45), the lifting end of the long side loading member (45) passes through the first avoidance through hole (421) and is fixedly connected to the top block (43); A corner loading member (46) is installed on a side of the base frame (41) away from the columnar loading member (44) and is electrically connected to the control unit.

5. The electric loading device for glass cold bending test according to claim 4 is characterized in that: The mounting plate (42) is provided with a first mounting slot (422), the first mounting slot (422) being arranged on both sides of the top block (43), the columnar loading member (44) being mounted on the first mounting slot (422) by means of an adjusting connector (441), and the lifting height of the long side loading member (45) being greater than the axial length of the columnar loading member (44).

6. The electric loading device for glass cold bending test according to claim 4, characterized in that: The long side loading component (45) comprises a mounting seat (451), an adjusting screw (452) and a connecting seat (453). A first arm (454) and a second arm (455) are provided on both sides of the mounting seat (451). The mounting seat (451) is mounted on the base frame (41). One end of the first arm (454) is hinged to the middle of the mounting seat (451), and the other end is hinged to one end of the second arm (455) through a pin member (456). The other end of the second arm (455) is hingedly mounted on the connecting seat (451). 3), the connecting seat (453) is arranged below the top block (43), and one end of the connecting seat (453) away from the mounting seat (451) is fixedly connected to the top block (43) through a top head (457), and the adjusting screw (452) is sequentially passed through and mounted on the two pin members (456) and screwed with the two pin members (456), and the two pin members are each provided with a mounting hole corresponding to the adjusting screw (452), and the mounting holes are each provided with an internal thread, and the thread directions of the internal threads on the two pin members are opposite.

7. The electric loading device for glass cold bending test according to claim 4 is characterized in that: The corner point loading component (46) comprises a ball component (461), a first plate group (462) and a second plate group (463); the ball component (461) is arranged between the first plate group (462) and the second plate group (463); a corner point column (464) is protrudingly provided on the side of the ball component (461) away from the second plate group (463); the corner point column (464) passes through the first plate group (462) and is installed on the base frame (41); a pressure sensing component is also provided at one end of the corner point column (464) installed on the base frame (41); the pressure sensing component is electrically connected to the control unit; the first plate group (462) and the second plate group (463) are connected via a detachable connecting piece; the second plate group (463) is used for clamping the glass to be tested.

8. The electric loading device for glass cold bending test according to claim 4, characterized in that: The connecting component (50) comprises a bearing plate (52), a mounting rod (53), a connecting plate (54) and an elastic member (55); one side of the bearing plate (52) is fixedly connected to the first guide block (33); the other side is provided with a mounting convex strip (521); both sides of the mounting convex strip (521) are provided with reinforcing ribs (522); the mounting rod (53) is fixedly installed at the middle part of the side of the mounting convex strip (521) away from the bearing plate (52); a limiting mounting groove (523) is also provided on the side of the mounting convex strip (521) away from the bearing plate; the limiting mounting grooves (523) are symmetrically arranged on both sides of the mounting rod (53); the base frame (41) is provided with a first The base frame (41) is movably mounted on the mounting rod (53); limiting rods (56) adapted to the limiting mounting grooves (523) are also movably mounted on both sides of the base frame (41); one end of the two limiting rods (56) is movably mounted on the limiting mounting grooves (523); the other end passes through the base frame (41) and is fixedly connected through the connecting plate (54); the connecting plate (54) is sleeved and mounted on the mounting rod (53); a limiting member (57) is also mounted on one end of the mounting rod (53) away from the bearing plate (52); the elastic member (55) is sleeved and mounted on the mounting rod (53) and is located between the limiting member (57) and the connecting plate (54).

9. The electric loading device for glass cold bending test according to claim 8, characterized in that: Connecting screws (58) are provided on both sides of the connecting plate (54), and the connecting plate (54) is fixedly connected to one end of the limiting rod (56) away from the supporting plate (52) through the connecting screws (58). The two ends of the side of the base frame (41) close to the supporting plate (52) are protruding with engaging blocks (412) adapted to the reinforcing ribs (522), and the side of the reinforcing ribs (522) close to each other is also provided with a supporting protrusion (524), and the engaging block (412) is provided with an engaging groove (413) adapted to the supporting protrusion (524).

10. A glass cold bending test method, applied to the glass cold bending test electric loading device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S01, selecting a glass to be tested, and performing modeling and cold bending simulation analysis on the glass to be tested, obtaining analysis results, and determining a theoretical cold bending variation law; S02, based on the analysis result and the theoretical cold bending variation law, calculating the specific cold bending amount required for the cold bending of the glass to be tested and the pressure value corresponding to the cold bending amount; S03, inputting the cold bending amount and the pressure value into the control unit, determining the glass cold bending loading mode of the electric loading device for the glass cold bending test, and presetting the number of cyclic loading times; S04, determining a loading point of the electric loading device for the glass cold bending test on the glass to be tested based on the glass cold bending loading method; S05, loading and fixing the glass to be tested by using a plurality of electric loading devices for the glass cold bending test according to the loading points; S06, controlling the glass cold bending test electric loading device to perform cold bending loading on the glass to be tested step by step through the control unit, monitoring and adjusting the travel amount and loading pressure value of each loading point in real time, and releasing the load on the glass to be tested after completing a round of loading on the glass to be tested, and recording stress test data; S07, repeating step S06 until the preset number of cyclic loading times is reached; S08, comparing and analyzing the multiple stress test data of the cyclic test with the stress test data of the first pressurization process to obtain the actual cold bending deformation law, stress distribution characteristics and potential risk points of the glass to be tested.

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