A glass edge impact resistance detection apparatus and method

Abstract

The application relates to the technical field of glass detection, and specifically discloses a glass edge impact resistance detection device and method, which comprises a mounting frame, a plastic damping pipe, an adjusting assembly and an analysis mechanism. The plastic damping pipe is provided with a piston disc, and the piston disc is provided with an impact block. A first electric telescopic rod is vertically arranged on the mounting frame, a first negative pressure head is arranged on the telescopic end of the first electric telescopic rod, and a second negative pressure head is fixedly arranged on the mounting frame. The adjusting assembly can realize inelastic collision when the impact block collides with the glass edge, in the glass edge deformation process and in the glass edge deformation and rebound process, the damping received by the impact block is adjusted, thereby simulating the inelastic collision of the glass edge under different working conditions such as hail and flying stones, the collision time is prolonged to an observable range, and the defect sensitive area can be positioned. The analysis mechanism can also analyze the danger of the debris generated by the collision, and judge whether the glass edge has stress distribution imbalance.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of glass detection, in particular to a glass edge impact resistance detection device and method. BACKGROUND

[0002] Glass is a non-crystalline inorganic non-metallic material, mainly composed of silicon dioxide, with high light transmittance, high hardness, chemical corrosion resistance, low thermal expansion coefficient, excellent insulation performance and other characteristics, but it is brittle, low tensile strength, and easy to break due to stress concentration. Especially the glass edge often forms stress concentration points due to microstructure defects during processing or use, and the local stress can reach more than 10 times the average strength of the material. Under thermal shock or mechanical impact, the glass edge is easy to cause crack propagation and lead to overall rupture, so it is necessary to detect the impact resistance of the glass edge to control the overall quality of the glass.

[0003] In the prior art, a glass edge impact resistance detection device is disclosed in Chinese patent CN117782853A. A linear motor module for horizontal linear motion is fixed on a bearing table, and an adsorption platform is fixed at the end of the travel of the linear motor module. The adsorption platform is used to support and fix the glass product, and the edge of the glass product to be tested extends out of the test side of the adsorption platform. A shock carrier driven by the linear motor module is fixed on the linear motor module, and a shock module for impacting the edge of the glass product is placed on the shock carrier. Similar to a car crash test, the linear motor module replaces the collision ball to achieve the effect of glass edge impact detection, and the shock module of the motor can be replaced to realize detection of multiple impact states.

[0004] For the related technology in the above, the impact module needs to be replaced, and the position of the impact module also needs to be manually reset after each use, which is troublesome. The fragments generated after impact are not analyzed, the stress distribution imbalance of the glass edge cannot be judged, and the impact time is short, so the defect sensitive area cannot be positioned according to the crack generation process. Therefore, improvements are needed. SUMMARY

[0005] In order to facilitate impact testing of the glass edge, dangerousness analysis of the fragments after impact, judgment of whether the glass edge has stress distribution imbalance, and extension of the impact time, positioning of the defect sensitive area according to the crack generation process, the present application provides a glass edge impact resistance detection device and method.

[0006] The glass edge impact resistance detection device and method provided by the present application adopt the following technical solutions:

[0007] The utility model provides a kind of glass edge impact resistance detection equipment, including detection platform, linear guide and mounting frame are provided on the detection platform, the mounting frame is arranged on the side of the linear guide, the linear guide includes sliding guide and sliding seat, fixedly provided with mounting table on the sliding seat, plastic damping tube is provided on the mounting table, piston disc is movably arranged along the length direction of the plastic damping tube in the plastic damping tube, the side of the piston disc close to the mounting frame is provided with connecting rod, the other end of the connecting rod is arranged outside the plastic damping tube and passes through the plastic damping tube, and the connecting rod is movably and sealingly connected with the plastic damping tube, impact block for impacting glass edge is fixedly arranged on the end of the connecting rod away from the piston disc, first spring is arranged between the impact block and the plastic damping tube, adjusting assembly for adjusting damping buffering effect of the impact block in real time is arranged in the plastic damping tube, first electric telescopic rod is vertically arranged on the mounting frame, first negative pressure head is arranged on the telescopic end of the first electric telescopic rod, second negative pressure head is fixedly arranged on the mounting frame, the first negative pressure head is arranged directly above the second negative pressure head, glass is placed between the first negative pressure head and the second negative pressure head and is adsorbed and fixed, analysis mechanism for collecting and analyzing the fragments generated after the impact of the impact block on glass and analyzing the generation of crack is also arranged on the mounting frame, the analysis mechanism is provided with two groups, and two groups of the analysis mechanism are symmetrically arranged on the two sides of the second negative pressure head.

[0008] By using the above technical scheme, the glass is placed on the second negative pressure head, the second negative pressure head adsorbs and fixes the glass by negative pressure, and then the first electric telescopic rod is started to make the second negative pressure head descend and adsorb the glass, so as to further improve the stability of the glass. The plastic damping tube on the mounting table is moved by the sliding seat on the linear guide, the piston disc and the impact block are moved synchronously by the plastic damping tube, until the impact block collides with the edge of the glass. The adjusting assembly in the utility model can realize inelastic collision during the collision of the impact block with the edge of the glass, the deformation process of the glass edge and the rebound process of the deformation of the glass edge. Then, the damping received by the impact block is adjusted, so as to simulate inelastic collision of the glass edge under different working conditions such as hail and flying stone. Moreover, the adjusting assembly prolongs the collision time to an observable range while realizing inelastic collision, so as to facilitate the analysis mechanism in the utility model to capture and analyze the crack propagation path and locate the defect sensitive area. In addition, the analysis mechanism in the utility model can also analyze the danger of the fragments generated by the collision, to judge whether there is stress distribution imbalance in the edge of the glass. After the collision, the damping received by the impact block is adjusted to the minimum, the impact block is reset under the action of the first spring, and the sliding seat is reset under the action of the linear guide, to prepare for the next collision.

[0009] Optionally, the adjusting assembly comprises a coil, a sleeve and a current controller, the coil is arranged on the outer wall of the plastic damping tube, two ends of the coil are connected with the current controller, the sleeve is sleeved outside the coil and fixedly and sealingly connected with two ends of the plastic damping tube, the piston disc divides the plastic damper into a first chamber body and a second chamber body, the first chamber body and the second chamber body are filled with magnetorheological fluid, and the piston disc is provided with a communication hole for the magnetorheological fluid in the first chamber body and the magnetorheological fluid in the second chamber body to flow to each other.

[0010] By adopting the above technical scheme, after the coil is electrified, a stable and uniform axial magnetic field can be generated inside the coil, the current controller can adjust the current size passing through the coil, the current size is controlled, the strength of the magnetic field generated by the coil is controlled, the magnetorheological fluid changes in flowability in the changing magnetic field, the stronger the magnetic field is, the worse the flowability is, the piston disc moves in the plastic damper, and the magnetorheological fluid in the first chamber body and the second chamber body flows through the communication hole, the strength of the magnetic field is indirectly changed by changing the current size, the damping force size that the piston disc receives is changed, non-elastic collision is realized, and the time of impact collision is prolonged.

[0011] Optionally, a gap is arranged between the outer wall of the plastic damping tube and the inner wall of the sleeve, heat-conducting oil for conducting heat generated by the coil is arranged in the gap, the sleeve is communicated with a liquid outlet pipe, a small oil pump is arranged on the mounting table, one end of the liquid outlet pipe away from the sleeve is connected with a liquid inlet of the small oil pump, a liquid inlet pipe is arranged on a liquid outlet of the small oil pump, one end of the liquid inlet pipe away from the small oil pump is communicated with the sleeve, and heat dissipation fins are arranged on the liquid outlet pipe.

[0012] By adopting the above technical scheme, the coil generates heat when electrified, the temperature of the coil is too high after long-time use, the strength of the generated magnetic field is affected, the heat-conducting oil in the application can absorb the heat generated by the coil, the heat-conducting oil between the plastic damping tube and the sleeve is pumped out by the oil pump, the heat-conducting oil is cooled by being discharged through the liquid outlet pipe and the heat dissipation fins, and then the heat-conducting oil is input between the outer wall of the plastic damping tube and the inner wall of the sleeve through the liquid inlet pipe, so that the coil is cooled, and the stability of the magnetic field generated by the coil is improved.

[0013] Optionally, the analysis mechanism comprises a fixed plate, a splash-proof half frame, a second electric telescopic rod, a fixed rod, a moving plate and an analysis assembly, the fixed plate is vertically fixed on the mounting frame, the fixed end of the second electric telescopic rod is fixed on the fixed plate, the splash-proof half frame is fixed on the telescopic end of the second electric telescopic rod, the splash-proof half frame is provided with an impact opening corresponding to the impact block, the moving plate is slidably arranged in the splash-proof half frame, the fixed rod is fixed on the side of the moving plate away from the second negative pressure head, the other end of the fixed rod is movably penetrated through the splash-proof half frame and fixedly connected with a fixed block, a second spring is arranged between the fixed block and the splash-proof half frame, two groups of splash-proof half frames are closed to cover the glass, the impact block enters the splash-proof half frame from the impact opening to impact the glass, and the debris generated by the impact is intercepted in the splash-proof half frame, the second electric telescopic rod drives the splash-proof half frame to move away from the second negative pressure head until the fixed block abuts against the fixed plate, and the second spring is compressed, the moving plate pushes the debris in the splash-proof half frame out onto the detection table, and the analysis assembly is arranged on the mounting frame and used for analyzing the danger of the debris on the detection table.

[0014] By adopting the above technical scheme, in the initial state, two groups of splash-proof half frames are closed to cover the glass, the impact block enters the splash-proof half frame from the impact opening to impact the glass, and the debris generated by the impact is intercepted in the splash-proof half frame, then the second electric telescopic rod is started, the telescopic end of the second electric telescopic rod is shortened to drive two groups of splash-proof half frames to separate and move away from the second negative pressure head until the fixed block abuts against the fixed plate, at this time, the moving plate and the splash-proof half frame move relatively, and the second spring is compressed, the moving plate pushes the debris in the splash-proof half frame out from the splash-proof half frame onto the detection table, the telescopic end of the second electric telescopic rod is continuously shortened until the moving plate pushes all the debris in the splash-proof half frame out onto the detection table, and the analysis assembly on the mounting frame analyzes the danger of the debris on the detection table, then the telescopic end of the second electric telescopic rod is elongated to drive the splash-proof half frame to move towards the second negative pressure head, at this time, under the action of the second spring, the moving plate moves into the splash-proof half frame until the fixed block separates from the fixed plate, and two groups of splash-proof half frames abut against each other, so as to realize the resetting of the splash-proof half frame and the moving plate.

[0015] Optionally, the analysis assembly comprises a crack analysis camera, a debris analysis camera and a long tube lamp, the debris analysis camera is fixed on the mounting frame and used for analyzing the danger of the debris on the detection table, the long tube lamp is arranged on the mounting frame and used for irradiating and reflecting the debris to improve the analysis accuracy of the debris analysis camera, and the crack analysis camera is arranged on the inner top wall of the splash-proof half frame and used for quickly capturing the process of generating cracks by collision.

[0016] By adopting the technical scheme, the debris analysis camera can capture and analyze the particle size and shape of the debris on the detection table, and when the size of the debris exceeds a certain size or the debris is long and sharp, it is determined that the debris is dangerous debris, and when the dangerous debris exceeds a certain number, it indicates that there is stress distribution imbalance in the edge region of the glass. The long tube lamp is used to irradiate and reflect the debris, thereby improving the capturing effect and analysis accuracy of the debris analysis camera on the debris. The collision time is prolonged, so that the crack analysis camera can capture the whole process from the initiation to the expansion of the crack, and the sensitive area of the defect is located.

[0017] Optionally, a push plate is arranged on the detection table and below the splash-proof half frame, a third electric telescopic rod is arranged on the side wall of the detection table, the telescopic end of the third electric telescopic rod is fixedly connected with the push plate, and a collection groove is arranged in the detection table, and a collection opening is formed in the detection table for pushing the debris into the collection groove by the push plate.

[0018] By adopting the technical scheme, the telescopic end of the third electric telescopic rod is extended to drive the push plate to move, and the debris on the detection table is cleaned to the collection groove through the collection opening for collection, thereby facilitating the debris analysis camera to analyze the debris generated by the next collision.

[0019] Optionally, a magnetic conductive material lining layer for improving the uniformity of the magnetic field generated by the coil when electrified is arranged in the plastic damping pipe.

[0020] By adopting the technical scheme, after the magnetic conductive material lining layer is additionally arranged in the plastic damping pipe, the magnetic field distribution is more uniform, the magnetic induction lines generated by the coil are concentrated to penetrate the magnetorheological fluid region, the utilization rate of the magnetic field is improved, the magnetic conductive lining and the plastic pipe composite structure not only retain the lightweight and corrosion-resistant characteristics, but also inhibit magnetic leakage and eddy current loss, ensure that the magnetorheological fluid response is more linear, and still maintain stable damping force under high-frequency vibration working conditions, and enhance the anti-magnetic saturation deformation ability of the plastic pipe.

[0021] Optionally, a thixotropic agent for improving the service life and use effect of the magnetorheological fluid is added to the magnetorheological fluid.

[0022] By adopting the technical scheme, the thixotropic agent added to the magnetorheological fluid can inhibit the sedimentation of the magnetic particles under zero magnetic field and maintain low viscosity, and when the magnetic field is turned on, the thixotropic agent can make the magnetic particles quickly form chains, and can also improve the adaptability of the magnetorheological fluid to violent shaking or high temperature, thereby realizing efficient and durable magnetorheological fluid performance.

[0023] The application also includes a glass edge impact resistance detection method, which comprises the following steps:

[0024] S1: Place the glass on the second negative pressure head. The second negative pressure head will use negative pressure to adsorb and fix the glass. Then, start the first electric telescopic rod to make the second negative pressure head descend and come into contact with the glass for adsorption.

[0025] S2: Activate the second electric telescopic rod to close the two sets of splash-proof semi-frames and cover the glass;

[0026] S3: When the coil is energized, the current controller can adjust the magnitude of the current passing through the coil. After a stable magnetic field is formed, the magnetorheological fluid will exhibit changes in fluidity in the changing magnetic field, thereby altering the damping force on the piston disc and simulating different working conditions.

[0027] S4: The linear guide rail is activated to make the impact block collide with the edge of the glass at a set speed. The debris generated by the impact is intercepted inside by the anti-splash half frame. During the collision, the crack analysis camera captures the entire process of crack initiation and propagation, and locates the defect-sensitive area.

[0028] S5: Start the second electric telescopic rod. The second electric telescopic rod drives the two sets of splash-proof half-frames to separate until the fixed block and the fixed plate abut against each other. The moving plate pushes the debris in the splash-proof half-frame from the splash-proof half-frame to the test table.

[0029] S6: The fragment analysis camera captures and analyzes the size and shape of the fragments on the detection platform. If the size of the fragments exceeds a certain size or the fragments are long and sharp, they are judged as dangerous fragments. If the number of dangerous fragments exceeds a certain number, it indicates that there is an imbalance in the stress distribution in the glass edge area.

[0030] In summary, this application includes at least one of the following beneficial technical effects:

[0031] 1. A stable and uniform axial magnetic field can be generated inside the coil. The current controller can adjust the magnitude of the current passing through the coil. Since the current in the coil is positively correlated with the magnetic field strength generated by the coil, the strength of the magnetic field can be controlled by controlling the magnitude of the current. Since the magnetorheological fluid will change its fluidity in a changing magnetic field, the stronger the magnetic field, the worse the fluidity. Therefore, the piston disc moves in the plastic damper. When the magnetorheological fluid in the first and second chambers flows through the connecting hole, the magnetic field strength can be indirectly changed by changing the magnitude of the current, thereby changing the damping force on the piston disc, thus realizing inelastic collision and prolonging the impact collision time. The damping force on the impact block can also be adjusted by the magnetic field strength, thereby simulating inelastic collisions of glass edges under different working conditions such as hail and flying stones.

[0032] 2. Long time use will appear coil temperature is too high, thereby affecting the strength of the magnetic field formed, the heat conduction oil in the application can absorb the heat generated by the coil, and then the heat conduction oil between the plastic damping pipe and the sleeve is pumped out by the oil pump, and after cooling through the heat dissipation fins, it is input again between the outer wall of the plastic damping pipe and the inner wall of the sleeve through the liquid inlet pipe, so as to realize the cooling of the coil and improve the stability of the magnetic field generated by the coil;

[0033] 3. The debris analysis camera can capture and analyze the particle size and shape of the debris on the detection table. When the size of the debris exceeds a certain size or the debris is long and sharp, it is determined to be dangerous debris. When the number of dangerous debris exceeds a certain number, it indicates that there is stress distribution imbalance in the edge area of the glass. The long tube lamp is used to irradiate and reflect the debris, thereby improving the capture effect and analysis accuracy of the debris analysis camera. The application prolongs the collision time, so that the whole process of crack from initiation to expansion can be captured by the crack analysis camera, and the defect sensitive area is located.

[0034] 4. In the initial state, the two groups of splash-proof half-frames are closed to cover the glass, the impact block enters the splash-proof half-frame from the impact port to impact the glass, and the debris generated by the impact is intercepted inside the two groups of splash-proof half-frames. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0036] Figure 1 is a schematic diagram of the overall structure of the embodiment of the application;

[0037] Figure 2 is a partial structure cross-sectional view of Figure 1 ;

[0038] Figure 3 is an enlarged schematic view of the A part structure of Figure 2 ;

[0039] : 1, linear guide rail; 11, sliding seat; 12, mounting table; 13, plastic damping pipe; 131, magnetic material lining; 14, piston disc; 15, connecting rod; 16, impact block; 17, first spring; 2, mounting frame; 21, first electric telescopic rod; 22, first negative pressure head; 23, second negative pressure head; 3, adjusting assembly; 31, coil; 32, sleeve; 33, current controller; 34, first bin body; 35, second bin body; 36, communication hole; 4, analysis mechanism; 41, fixed plate; 42, splash-proof half frame; 43, second electric telescopic rod; 44, fixed rod; 45, moving plate; 46, analysis assembly; 461, crack analysis camera; 462, fragment analysis camera; 463, long tube lamp; 47, second spring; 5, small oil pump; 51, liquid outlet pipe; 52, liquid inlet pipe; 53, heat dissipation fin; 6, push plate; 7, third electric telescopic rod; 8, collection groove; 9, collection port. DETAILED DESCRIPTION

[0040] The following will be described in detail in combination with the accompanying drawings Figures 1-3 The application is further described in detail.

[0041] The embodiments of the application disclose a glass edge impact resistance detection device and method, referring to Figure 1 、 Figure 2 and Figure 3 A glass edge impact resistance detection device comprises a detection table, a linear guide rail 1 and a mounting frame 2 are fixedly installed on the detection table by bolts, the mounting frame 2 is installed on one side of the linear guide rail 1, the linear guide rail 1 comprises a sliding guide rail and a sliding seat 11, a mounting table 12 is fixedly and weldedly installed on the sliding seat 11, a plastic damping pipe 13 is fixedly installed on the mounting table 12, a piston disc 14 is movably installed in the plastic damping pipe 13 along the length direction of the plastic damping pipe 13, a connecting rod 15 is weldedly installed on one side of the piston disc 14 close to the mounting frame 2, the other end of the connecting rod 15 penetrates through the plastic damping pipe 13 and is installed outside the plastic damping pipe 13, and the connecting rod 15 is movably and sealingly connected with the plastic damping pipe 13, and an impact block 16 is fixedly and weldedly installed on the end of the connecting rod 15 away from the piston disc 14.

[0042] A first spring 17 is weldedly installed between the impact block 16 and the plastic damping pipe 13, an adjusting assembly 3 is installed in the plastic damping pipe 13, a first electric telescopic rod 21 is fixedly and vertically installed on the mounting frame 2 by bolts, a first negative pressure head 22 is fixedly installed on the telescopic end of the first electric telescopic rod 21, a second negative pressure head 23 is fixedly installed on the mounting frame 2, the first negative pressure head 22 is installed directly above the second negative pressure head 23, and a glass is placed between the first negative pressure head 22 and the second negative pressure head 23 to be adsorbed and fixed, and an analysis mechanism 4 is further installed on the mounting frame 2, two groups of the analysis mechanism 4 are installed, and the two groups of analysis mechanisms 4 are symmetrically installed on the two sides of the second negative pressure head 23.

[0043] The glass is placed on the second negative pressure head 23, the second negative pressure head 23 is negatively adsorbed and fixed to the glass, and then the first electric telescopic rod 21 is started to make the second negative pressure head 23 descend and abut and adsorb the glass, thereby further improving the stability of the glass. The plastic damping pipe 13 on the mounting table 12 is driven to move by the sliding seat 11 on the linear guide rail 1, the plastic damping pipe 13 drives the piston disc 14 and the impact block 16 to move synchronously, until the impact block 16 collides with the edge of the glass. The adjusting assembly 3 in the embodiment can realize inelastic collision when the impact block 16 collides with the edge of the glass, during the deformation of the edge of the glass, and during the rebound of the deformation of the edge of the glass. Then, by adjusting the damping received by the impact block 16, the inelastic collision of the edge of the glass under different working conditions such as hail and flying stones is simulated. In addition, the adjusting assembly 3 not only prolongs the collision time to an observable range while realizing inelastic collision, but also facilitates the analysis mechanism 4 in the embodiment to capture and analyze the expansion path of the crack and locate the defect sensitive area. In addition, the analysis mechanism 4 in the embodiment can also analyze the danger of the debris generated by the collision, and judge whether the edge of the glass has stress distribution imbalance. After the collision is completed, the damping received by the impact block 16 is adjusted to the minimum, and under the action of the first spring 17, the impact block 16 is reset, and under the action of the linear guide rail 1, the sliding seat 11 is reset, preparing for the next collision.

[0044] With reference to Figure 1 , Figure 2 and Figure 3 , in order to adjust the damping received by the impact block 16, the adjusting assembly 3 in the embodiment includes a coil 31, a sleeve 32 and a current controller 33. The coil 31 is wound on the outer wall of the plastic damping pipe 13, both ends of the coil 31 are connected with the current controller 33, the sleeve 32 is sleeved outside the coil 31, and both ends are fixedly and sealingly connected with both ends of the plastic damping pipe 13. The piston disc 14 divides the plastic damper into a first chamber 34 and a second chamber 35, both the first chamber 34 and the second chamber 35 are filled with magnetorheological fluid, a communicating hole 36 is formed in the piston disc 14, and a thixotropic agent is added to the magnetorheological fluid.

[0045] When the coil 31 is powered, a stable and uniform axial magnetic field can be generated inside the coil 31, and the current controller 33 can adjust the current passing through the coil 31. Since the current of the coil 31 is positively correlated with the magnetic field strength generated by the coil 31, controlling the current size can achieve control of the strength of the magnetic field. Since the magneto-rheological fluid changes in flowability in a changing magnetic field, the stronger the magnetic field, the worse the flowability. Therefore, when the piston disc 14 moves in the plastic damper, and the magneto-rheological fluid in the first chamber body 34 and the second chamber body 35 flows through the communication hole 36, the damping force received by the piston disc 14 can be indirectly changed by changing the current size to change the magnetic field strength, thereby achieving inelastic collision and prolonging the impact collision time. Adding a thixotropic agent to the magneto-rheological fluid can inhibit the settlement of magnetic particles under zero magnetic field and maintain low viscosity. When the magnetic field is turned on, the thixotropic agent can quickly arrange the magnetic particles into chains, and can also improve the adaptability of the magneto-rheological fluid to violent shaking or high temperature, thereby achieving high-efficiency and durable magneto-rheological fluid performance. In this embodiment, the thixotropic agent is silicon dioxide powder, which is a preferred way in this embodiment. In other embodiments, the thixotropic agent can be aluminum oxide powder, etc.

[0046] With reference to Figure 3 After a long time of using the coil 31, the coil 31 will heat up, thereby affecting the stability of the magnetic field strength. Therefore, a gap is provided between the outer wall of the plastic damping pipe 13 and the inner wall of the sleeve 32, and a heat-conducting oil for conducting the heat generated by the coil 31 is arranged in the gap. The sleeve 32 is communicated with a liquid outlet pipe 51, and a small oil pump 5 is arranged on the mounting table 12. One end of the liquid outlet pipe 51 away from the sleeve 32 is connected to the liquid inlet of the small oil pump 5. The liquid outlet of the small oil pump 5 is provided with a liquid inlet pipe 52, and the end of the liquid inlet pipe 52 away from the small oil pump 5 is communicated with the sleeve 32. The liquid outlet pipe 51 is provided with heat dissipation fins 53. The heat-conducting oil can absorb the heat generated by the coil 31, and then the heat-conducting oil between the plastic damping pipe 13 and the sleeve 32 is pumped out by the oil pump. After the heat is dissipated and cooled through the liquid outlet pipe 51 and the heat dissipation fins 53, the heat-conducting oil is re-input between the outer wall of the plastic damping pipe 13 and the inner wall of the sleeve 32 through the liquid inlet pipe 52, thereby achieving cooling of the coil 31 and improving the stability of the magnetic field generated by the coil 31.

[0047] With reference to Figure 1 and Figure 2In order to realize the danger analysis of the glass fragments generated after the collision, and the rapid capture analysis of the cracks generated in the glass during the impact process, the analysis mechanism 4 in the embodiment comprises a fixed plate 41, a splash-proof half frame 42, a second electric telescopic rod 43, a fixed rod 44, a moving plate 45 and an analysis assembly 46. The fixed plate 41 is vertically fixed and welded on the mounting frame 2. The fixed end of the second electric telescopic rod 43 is bolted and fixed on the fixed plate 41. The splash-proof half frame 42 is fixed and welded on the telescopic end of the second electric telescopic rod 43. An impact opening is formed in the splash-proof half frame 42 corresponding to the impact block 16. The moving plate 45 is slidingly installed in the splash-proof half frame 42. The fixed rod 44 is fixed and welded on one side of the moving plate 45 away from the second negative pressure head 23. The other end of the fixed rod 44 is movably penetrated through the splash-proof half frame 42 and is fixed and welded with a fixed block. The second spring 47 is installed between the fixed block and the splash-proof half frame 42 and is sleeved and installed on the fixed rod 44. The analysis assembly 46 is installed on the mounting frame 2.

[0048] In the initial state, the two groups of splash-proof half frames 42 are closed to cover the glass. The impact block 16 enters the splash-proof half frame 42 from the impact opening to impact the glass. The debris generated by the impact is intercepted inside the splash-proof half frame 42. Then the second electric telescopic rod 43 is started. The telescopic end of the second electric telescopic rod 43 shortens to drive the two groups of splash-proof half frames 42 to separate and move away from the second negative pressure head 23 until the fixed block abuts against the fixed plate 41. At this time, the moving plate 45 and the splash-proof half frame 42 move relatively, and the second spring 47 is compressed. The moving plate 45 pushes the debris in the splash-proof half frame 42 out of the splash-proof half frame 42 to the detection table. Continue to shorten the telescopic end of the second electric telescopic rod 43 until the moving plate 45 pushes all the debris in the splash-proof half frame 42 out of the splash-proof half frame 42 to the detection table. The analysis assembly 46 on the mounting frame 2 analyzes the danger of the debris on the detection table. The telescopic end of the second electric telescopic rod 43 is elongated to move the splash-proof half frame 42 towards the second negative pressure head 23. At this time, under the action of the second spring 47, the moving plate 45 moves into the splash-proof half frame 42 until the fixed block separates from the fixed plate 41. The two groups of splash-proof half frames 42 abut against each other to realize the resetting of the splash-proof half frame 42 and the moving plate 45.

[0049] Referring to Figure 1 and Figure 2The analysis assembly 46 in the embodiment comprises a crack analysis camera 461, a fragment analysis camera 462 and a long tube lamp 463. The fragment analysis camera 462 is fixedly installed on the mounting frame 2, the long tube lamp 463 is fixedly installed on the mounting frame 2, and the crack analysis camera 461 is fixedly installed on the inner top wall of the splash-proof half frame 42. The fragment analysis camera 462 can capture and analyze the particle size and shape of the debris on the detection table. When the size of the debris exceeds a certain size or the debris is long and sharp, it is determined as dangerous debris. When the number of dangerous debris exceeds a certain number, it indicates that there is an unbalanced stress distribution in the edge region of the glass. The long tube lamp 463 is used to irradiate and reflect the debris, thereby improving the capturing effect and analysis accuracy of the fragment analysis camera 462. The collision time is prolonged in the embodiment, so that the crack analysis camera 461 can capture the whole process from the initiation to the expansion of the crack, and locate the defect sensitive area. The crack analysis camera is a high-speed camera.

[0050] With reference to Figure 1 and Figure 2 , the push plate 6 is movably installed on the detection table and is installed below the splash-proof half frame 42. The third electric telescopic rod 7 is fixedly installed on the side wall of the detection table, and the telescopic end of the third electric telescopic rod 7 is fixedly and weldedly connected with the push plate 6. The collection groove 8 is placed in the detection table, and the collection opening 9 is formed in the detection table. The telescopic end of the third electric telescopic rod 7 is elongated to drive the push plate 6 to move. The push plate 6 moves to clean the debris on the detection table through the collection opening 9 and collects the debris in the collection groove, thereby facilitating the fragment analysis camera 462 to analyze the debris generated by the next collision.

[0051] With reference to Figure 3 , the magnetic material lining 131 is embeddedly installed in the plastic damping pipe 13. After the magnetic material lining 131 is additionally arranged in the plastic damping pipe 13, the magnetic field distribution is more uniform, the magnetic induction lines generated by the coil 31 are concentrated to penetrate the magnetorheological fluid region, the utilization rate of the magnetic field is improved, the composite structure of the magnetic lining and the plastic pipe retains the lightweight and corrosion-resistant characteristics, suppresses the magnetic leakage and eddy current loss, ensures that the magnetorheological fluid response is more linear, and still maintains stable damping force under high-frequency vibration working conditions, and enhances the anti-magnetic saturation deformation ability of the plastic pipe. In the embodiment, the magnetic material lining 131 can be a ferrous material, which is a preferred mode in the embodiment. In other embodiments, the magnetic material lining 131 can be a nickel-based material.

[0052] The implementation principle of the glass edge impact resistance detection equipment in the embodiment is as follows:

[0053] In the initial state, the two groups of splash-proof half-frames 42 are closed to wrap the glass, the current controller 33 adjusts the current passing through the coil 31 to determine the magnetic field strength in the coil 31, the magneto-rheological fluid changes in flowability in the changing magnetic field, thereby realizing non-elastic collision and prolonging the time of impact collision, the impact block 16 enters the splash-proof half-frame 42 from the impact port to impact the glass, the crack analysis camera 461 captures the whole process of crack from initiation to expansion in the impact process, and the defect sensitive area is positioned.

[0054] Then the second electric telescopic rod 43 is started, the telescopic end of the second electric telescopic rod 43 is shortened to drive the two groups of splash-proof half-frames 42 to separate and move away from the second negative pressure head 23, until the fixed block abuts against the fixed plate 41, at this time, the moving plate 45 moves relatively between the splash-proof half-frames 42, and the second spring 47 is compressed, the moving plate 45 pushes the debris in the splash-proof half-frames 42 out of the splash-proof half-frames 42 to the detection table, the telescopic end of the second electric telescopic rod 43 is continuously shortened until the moving plate 45 pushes all the debris in the splash-proof half-frames 42 out of the splash-proof half-frames 42 to the detection table, and the debris analysis camera 462 captures and analyzes the particle size and shape of the debris on the detection table, when the size of the debris exceeds a certain size or the debris is long and sharp, the debris is determined as dangerous debris, and when the number of dangerous debris exceeds a certain number, it indicates that there is stress distribution imbalance in the edge region of the glass.

[0055] The application also discloses a glass edge impact resistance detection method.

[0056] S1: the glass is placed on the second negative pressure head 23, the second negative pressure head 23 negatively adsorbs and fixes the glass, and then the first electric telescopic rod 21 is started to lower the second negative pressure head 23 to abut against and adsorb the glass;

[0057] S2: the second electric telescopic rod 43 is started to close the two groups of splash-proof half-frames 42 to wrap the glass;

[0058] S3: the coil 31 is powered, the current controller 33 can adjust the current passing through the coil 31, after a stable magnetic field is formed, the magneto-rheological fluid changes in flowability in the changing magnetic field, the damping force received by the piston disc 14 is changed, and different working conditions are simulated;

[0059] S4: the linear guide rail 1 is started to make the impact block 16 collide with the edge of the glass at a set speed, the debris generated in the collision is intercepted in the splash-proof half-frames 42, and in the collision process, the crack analysis camera 461 captures the whole process of crack from initiation to expansion, and the defect sensitive area is positioned.

[0060] S5: start the second electric telescopic rod 43, the second electric telescopic rod 43 drives two groups of splash-proof half frames 42 to separate, until the fixed block abuts against the fixed plate 41, and the moving plate 45 pushes the debris in the splash-proof half frame 42 out of the splash-proof half frame 42 onto the detection table;

[0061] S6: the fragment analysis camera 462 captures and analyzes the particle size and shape of the debris on the detection table, and when the size of the debris exceeds a certain size or the debris is long and sharp, it is determined to be dangerous debris, and when the number of dangerous debris exceeds a certain number, it indicates that there is stress distribution imbalance in the edge region of the glass.

[0062] Unless otherwise defined, technical terms or scientific terms used in the present application shall be understood as having the common meaning to those skilled in the art to which the present application pertains. The terms "first", "second", "third" and the like used in the specification and claims of the present application do not denote any order, quantity or importance, but are only used to distinguish different components. The terms "one" or "a" and the like do not denote quantity limitation, but denote the existence of at least one. The terms "include" or "contain" and the like mean that the elements or objects appearing before "include" or "contain" cover the elements or objects listed after "include" or "contain" and their equivalents, and do not exclude other elements or objects. The terms "upper", "lower", "left", "right" and the like only represent relative positional relationships, and when the absolute positions of the described objects change, the relative positional relationships may also change accordingly.

[0063] The above are optional embodiments of the present application, and do not limit the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A glass edge impact resistance testing device, comprising a testing table, characterized in that: The testing platform is equipped with a linear guide rail and a mounting bracket. The mounting bracket is located on one side of the linear guide rail. The linear guide rail includes a sliding guide rail and a sliding seat. The mounting platform is fixedly mounted on the sliding seat. A plastic damping tube is mounted on the mounting platform. A piston disc is movably mounted inside the plastic damping tube along its length. A connecting rod is located on the side of the piston disc near the mounting bracket. The other end of the connecting rod passes through the plastic damping tube and is located outside the plastic damping tube. The connecting rod is movably and sealingly connected to the plastic damping tube. An impact block for impacting the glass edge is fixedly mounted on the end of the connecting rod away from the piston disc. A first [missing information - likely a type of joint] is provided between the impact block and the plastic damping tube. The spring, the plastic damping tube is provided with an adjustment component for real-time adjustment of the damping and buffering effect of the impact block, the mounting frame is vertically provided with a first electric telescopic rod, the telescopic end of the first electric telescopic rod is provided with a first negative pressure head, the mounting frame is fixedly provided with a second negative pressure head, the first negative pressure head is located directly above the second negative pressure head, the glass is placed between the first negative pressure head and the second negative pressure head for adsorption and fixation, the mounting frame is also provided with an analysis mechanism for collecting and analyzing the fragments generated after the impact block impacts the glass, and for analyzing the generation of cracks, the analysis mechanism is provided with two sets, the two sets of analysis mechanisms are symmetrically arranged on both sides of the second negative pressure head; The adjustment assembly includes a coil, a sleeve, and a current controller. The coil is wound around the outer wall of the plastic damping tube, and both ends of the coil are connected to the current controller. The sleeve is fitted over the outside of the coil, and both ends of the sleeve are fixedly and sealed to both ends of the plastic damping tube. The piston plate divides the plastic damping tube into a first chamber and a second chamber. Both the first chamber and the second chamber are filled with magnetorheological fluid. The piston plate has a connecting hole for the magnetorheological fluid in the first chamber and the magnetorheological fluid in the second chamber to flow between each other. The current controller is used to adjust the magnitude of the current passing through the coil, thereby controlling the strength of the magnetic field. As the piston disc moves within the plastic damping tube, and the magnetorheological fluid in the first and second chambers flows through the connecting holes, the current controller changes the current magnitude, thereby altering the magnetic field strength and ultimately the damping force on the piston disc, achieving inelastic collision and extending the impact collision time.

2. The glass edge impact resistance testing device according to claim 1, characterized in that: A gap is provided between the outer wall of the plastic damping tube and the inner wall of the sleeve, and heat-conducting oil for conducting the heat generated by the coil is provided in the gap. An outlet pipe is connected to the sleeve, and a small oil pump is provided on the mounting platform. The end of the outlet pipe away from the sleeve is connected to the inlet of the small oil pump. An inlet pipe is provided on the outlet of the small oil pump, and the end of the inlet pipe away from the small oil pump is connected to the sleeve. Heat dissipation fins are provided on the outlet pipe.

3. The glass edge impact resistance testing device according to claim 1, characterized in that: The analytical mechanism includes a fixed plate, a splash-proof half-frame, a second electric telescopic rod, a fixed rod, a movable plate, and analytical components. The fixed plate is vertically fixed on the mounting frame. The fixed end of the second electric telescopic rod is fixed on the fixed plate. The splash-proof half-frame is fixed on the telescopic end of the second electric telescopic rod. An impact port is provided on the splash-proof half-frame at a position corresponding to the impact block. The movable plate is slidably disposed within the splash-proof half-frame. The fixed rod is fixed on the side of the movable plate away from the second negative pressure head, and the other end of the fixed rod movably penetrates through the splash-proof half-frame. A fixing block is fixedly connected to one end of the frame, and a second spring is provided between the fixing block and the splash-proof half-frame. The two sets of splash-proof half-frames close to cover the glass. The impact block enters the splash-proof half-frame from the impact port and impacts the glass. The debris generated by the impact is intercepted inside the splash-proof half-frame. The second electric telescopic rod drives the splash-proof half-frame away from the second negative pressure head until the fixing block abuts against the fixing plate. The second spring is compressed, thereby driving the moving plate to push the debris in the splash-proof half-frame onto the testing platform. The analysis component is set on the mounting frame and is used to perform hazard analysis on the debris on the testing platform.

4. The glass edge impact resistance testing device according to claim 3, characterized in that: The analysis components include a crack analysis camera, a debris analysis camera, and a long tube light. The debris analysis camera is fixedly mounted on the mounting frame and is used to perform hazard analysis on the debris on the detection platform. The long tube light is mounted on the mounting frame and is used to illuminate and reflect light onto the debris to improve the analysis accuracy of the debris analysis camera. The crack analysis camera is mounted on the inner top wall of the splash-proof half-frame and is used to quickly capture the process of crack formation during collision.

5. The glass edge impact resistance testing device according to claim 4, characterized in that: A push plate is provided on the testing platform and is located below the splash-proof half-frame. A third electric telescopic rod is provided on the side wall of the testing platform. The telescopic end of the third electric telescopic rod is fixedly connected to the push plate. A collection groove is provided inside the testing platform, and a collection port is provided on the testing platform for the push plate to push debris into the collection groove.

6. The glass edge impact resistance testing device according to claim 1, characterized in that: The plastic damping tube is internally lined with a magnetically conductive material to improve the uniformity of the magnetic field generated by the coil when energized.

7. The glass edge impact resistance testing device according to claim 1, characterized in that: Thixotropic agents are added to the magnetorheological fluid to improve its service life and performance.

8. A method for testing the impact resistance of glass edges, comprising using the glass edge impact resistance testing equipment described in any one of claims 3-7 for impact testing, characterized in that: Includes the following steps: S1: Place the glass on the second negative pressure head, and the second negative pressure head will use negative pressure to adsorb and fix the glass. Then, start the first electric telescopic rod to lower the first negative pressure head and adsorb it against the glass. S2: Activate the second electric telescopic rod to close the two sets of splash-proof semi-frames and cover the glass; S3: When the coil is energized, the current controller adjusts the magnitude of the current passing through the coil, thereby controlling the strength of the magnetic field; after a changing magnetic field is formed, the magnetorheological fluid will exhibit changes in fluidity within the changing magnetic field. S4: The linear guide rail is activated to make the impact block collide with the glass edge at a set speed; when the piston disc moves in the plastic damping tube, the magnetorheological fluid in the first and second chambers flows through the connecting hole. The current controller changes the current magnitude, thereby changing the magnetic field strength. The damping of the impact block is adjusted by the magnetic field strength to simulate the inelastic collision of the glass edge under different working conditions. The debris generated by the impact is intercepted inside by the splash-proof half frame. During the collision, the crack analysis camera captures the entire process of crack initiation and propagation, and locates the defect-sensitive area. S5: Start the second electric telescopic rod. The second electric telescopic rod drives the two sets of splash-proof half-frames to separate until the fixed block and the fixed plate abut against each other. The moving plate pushes the debris in the splash-proof half-frame from the splash-proof half-frame onto the test table. S6: The fragment analysis camera captures and analyzes the size and shape of the debris on the detection platform. If the size of the debris exceeds a certain size or the debris is a long, sharp fragment, it is judged as a dangerous fragment. If the number of dangerous fragments exceeds a certain number, it indicates that there is an imbalance in the stress distribution in the glass edge area.

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