Glass edge impact resistance detection equipment and method

Abstract

The invention relates to the technical field of glass detection, and particularly discloses glass edge impact resistance detection equipment and method.The glass edge impact resistance detection equipment 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, an impact block is arranged on the piston disc, and a first electric telescopic rod is vertically arranged on the mounting frame; a first negative pressure head is arranged at the telescopic end of the first electric telescopic rod, a second negative pressure head is fixedly arranged on the mounting frame, and the adjusting assembly can achieve inelastic collision when the impact block collides with the edge of the glass, in the deformation process of the edge of the glass and in the deformation and rebounding process of the edge of the glass; and then damping borne by the impact block is adjusted, so that inelastic collision on the glass edge under different working conditions such as hail and flying stones is simulated, the collision time is prolonged to an observable range, and a defect sensitive area is conveniently positioned. And the analysis mechanism can also carry out danger analysis on chippings generated by collision to judge whether stress distribution unbalance exists on the edge of the glass or not.

Description

Technical Field

[0001] This application relates to the technical field of glass detection, and in particular to a glass edge impact resistance detection device and method. Background Art

[0002] Glass is an amorphous inorganic non-metallic material mainly composed of silicon dioxide, with characteristics such as high light transmittance, high hardness, chemical corrosion resistance, low thermal expansion coefficient, and excellent insulation performance. However, it is brittle, has low tensile strength, and is prone to fracture due to stress concentration. Especially, stress concentration points are often formed at the glass edge due to microscopic structure 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 shock, cracks are easily initiated at the glass edge and lead to overall rupture. Therefore, it is necessary to perform impact resistance detection on the glass edge to control the overall quality of the glass.

[0003] In the prior art, a Chinese invention patent with the publication number CN117782853A discloses a glass edge impact resistance detection device. A linear motor module moving linearly in the horizontal direction is fixed on a bearing platform. An adsorption platform is fixed at the end of the stroke of the linear motor module. The adsorption platform is used to support and fix the glass product. The edge of the glass product to be tested extends out of the test side of the adsorption platform. An impact carrier driven by the linear motor module is fixed on the linear motor module, and an impact module for hitting the edge of the glass product is placed on the impact carrier. Similar to a car collision test, the linear motor module is used instead of a collision ball to achieve the effect of impact detection on the glass edge, and the impact module of the motor can be replaced to realize the detection of various impact states.

[0004] For the above related technologies, it is relatively troublesome to replace the impact module and manually reset the position of the impact module after each use. The fragments generated after impact are not analyzed, and it is impossible to judge whether there is an imbalance in stress distribution at the glass edge. Moreover, the impact time is short, and it is impossible to locate the defect-sensitive area according to the generation process of cracks. Therefore, improvements are made to this. Summary of the Invention

[0005] In order to facilitate the impact test on the glass edge, analyze the danger of the fragments after impact, judge whether there is an imbalance in stress distribution at the glass edge, and extend the impact time to locate the defect-sensitive area according to the generation process of cracks, this application provides a glass edge impact resistance detection device and method.

[0006] A glass edge impact resistance detection device and method provided by this application adopt the following technical solutions: An impact resistance detection device for the edge of a glass, comprising a detection table, on which a linear guide rail and a mounting frame are arranged. The mounting frame is arranged on one side of the linear guide rail. The linear guide rail includes a sliding guide rail and a sliding seat. A mounting table is fixedly arranged on the sliding seat. A plastic damping tube is arranged on the mounting table. A piston disk is movably arranged in the plastic damping tube along the length direction of the plastic damping tube. A connecting rod is arranged on one side of the piston disk close to the mounting frame. The other end of the connecting rod penetrates through the plastic damping tube and is arranged outside the plastic damping tube, and the connecting rod is movably and sealingly connected with the plastic damping tube. An impact block for impacting the edge of the glass is fixedly arranged at the end of the connecting rod away from the piston disk. A first spring is arranged between the impact block and the plastic damping tube. An adjusting component for adjusting the damping buffer effect of the impact block in real time is arranged in the plastic damping tube. A first electric telescopic rod is vertically arranged on the mounting frame. A first negative pressure head is arranged at the telescopic end of the first electric telescopic rod. A 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. The glass is placed between the first negative pressure head and the second negative pressure head for adsorption and fixation. An analysis mechanism for collecting and analyzing the fragments generated after the impact of the impact block on the glass and analyzing the generation of cracks is also arranged on the mounting frame. There are two groups of the analysis mechanisms, and the two groups of the analysis mechanisms are symmetrically arranged on both sides of the second negative pressure head.

[0007] By adopting the above technical solution, the glass is placed on the second negative pressure head, and the second negative pressure head adsorbs and fixes the glass by negative pressure. Then, the first electric telescopic rod is started to make the second negative pressure head descend and abut against the glass for adsorption, so as to further improve the stability of the glass. The sliding seat on the linear guide rail drives the plastic damping tube on the mounting table to move, and the plastic damping tube drives the piston disk and the impact block to move synchronously until they collide with the edge of the glass. The adjusting component in the present application can achieve inelastic collision during the deformation process and the deformation rebound process of the glass edge when the impact block collides with the glass edge. By adjusting the damping received by the impact block, the inelastic collision of the glass edge under different working conditions such as hail and flying stones can be simulated. At the same time, when the adjusting component realizes inelastic collision, the collision time is extended to the observable range, which is convenient for the analysis mechanism in the present application to capture and analyze the crack propagation path and locate the defect sensitive area. In addition, the analysis mechanism in the present application can also analyze the danger of the debris generated by the collision and judge whether there is an imbalance in the stress distribution at the glass edge. After the collision, the damping received by the impact block is adjusted to the minimum. Under the action of the first spring, the impact block resets, and under the action of the linear guide rail, the sliding seat resets to prepare for the next collision.

[0008] Optionally, the adjusting assembly includes a coil, a sleeve, and a current controller. The coil is wound around the outer wall of the plastic damping tube. Both ends of the coil are connected to the current controller. The sleeve is sleeved outside the coil, and both ends are fixedly and hermetically connected to both ends of the plastic damping tube. The piston disk divides the plastic damper into a first chamber and a second chamber. Both the first chamber and the second chamber are filled with magnetorheological fluid. A communication hole is formed in the piston disk for the magnetorheological fluid in the first chamber and the magnetorheological fluid in the second chamber to communicate with each other.

[0009] By adopting the above technical solution, after the coil is energized, 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 of the coil is positively correlated with the magnetic field strength generated by the coil, controlling the magnitude of the current can achieve the control of the strength of the magnetic field. Since the magnetorheological fluid will change its fluidity in a changing magnetic field, the stronger the magnetic field, the worse the fluidity. Therefore, when the piston disk moves in the plastic damper and the magnetorheological fluid in the first chamber and the second chamber flows through the communication hole, the magnetic field strength can be indirectly changed by changing the current magnitude, thereby changing the damping force received by the piston disk, achieving inelastic collision, and prolonging the impact collision time.

[0010] Optionally, a gap is provided between the outer wall of the plastic damping tube and the inner wall of the sleeve. Heat-conducting oil for conducting the heat generated by the coil is provided in the gap. A liquid outlet pipe is communicated with the sleeve. A small oil pump is arranged on the mounting table. One end of the liquid outlet pipe far from the sleeve is connected to the liquid inlet of the small oil pump. An inlet pipe is arranged at the liquid outlet of the small oil pump. One end of the inlet pipe far from the small oil pump is communicated with the sleeve. Heat dissipation fins are arranged on the liquid outlet pipe.

[0011] By adopting the above technical solution, the coil generates heat when energized. After long-term use, the temperature of the coil will be too high, which will affect the formed magnetic field strength. Therefore, the heat-conducting oil in this application can absorb the heat generated by the coil, and then the heat-conducting oil between the plastic damping tube and the sleeve is pumped out by the oil pump. After the heat is dissipated and cooled through the liquid outlet pipe and the heat dissipation fins, it is re-input between the outer wall of the plastic damping tube and the inner wall of the sleeve through the inlet pipe, thereby realizing the cooling of the coil and improving the stability of the magnetic field generated by the coil.

[0012] Optionally, the analysis mechanism includes a fixing plate, a splash-proof half-frame, a second electric telescopic rod, a fixing rod, a moving plate, and an analysis component. The fixing plate is vertically and fixedly arranged on the mounting rack. The fixed end of the second electric telescopic rod is fixedly arranged on the fixing plate. The splash-proof half-frame is fixedly arranged on the telescopic end of the second electric telescopic rod. An impact opening corresponding to the impact block is formed on the splash-proof half-frame. The moving plate is slidably arranged inside the splash-proof half-frame. The fixing rod is fixedly arranged on the side of the moving plate away from the second negative pressure head, and the other end of the fixing rod movably penetrates through the splash-proof half-frame and is fixedly connected with a fixing block. A second spring is arranged between the fixing block and the splash-proof half-frame. The two splash-proof half-frames are closed to wrap 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 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, and the second spring is compressed. The moving plate pushes the debris inside the splash-proof half-frame onto the detection table. The analysis component is arranged on the mounting rack and is used for performing a hazard analysis on the debris on the detection table.

[0013] By adopting the above technical solution, in the initial state, the two splash-proof half-frames are closed to wrap 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 inside the splash-proof half-frame. Then, the second electric telescopic rod is started. The telescopic end of the second electric telescopic rod shortens to drive the two splash-proof half-frames to separate and move in the direction away from the second negative pressure head until the fixing block abuts against the fixing plate. At this time, relative movement occurs between the moving plate and the splash-proof half-frame, and the second spring is compressed. The moving plate pushes the debris inside the splash-proof half-frame out of the splash-proof half-frame onto the detection table. Continue to shorten the telescopic end of the second electric telescopic rod until the moving plate pushes all the debris inside the splash-proof half-frame onto the detection table. After the analysis component on the mounting rack performs a hazard analysis on the debris on the detection table, the telescopic end of the second electric telescopic rod is extended to make the splash-proof half-frame move in the direction of 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 fixing block separates from the fixing plate, and the two splash-proof half-frames abut against each other, thereby realizing the reset of the splash-proof half-frame and the moving plate.

[0014] Optionally, the analysis component includes a crack analysis camera, a debris analysis camera, and a long tube light. The debris analysis camera is fixedly arranged on the mounting rack and is used for performing a hazard analysis on the debris on the detection table. The long tube light is arranged on the mounting rack and is used for irradiating and reflecting light on the debris to improve the analysis accuracy of the debris analysis camera. The crack analysis camera is arranged on the inner top wall of the splash-proof half-frame and is used for quickly capturing the process of generating cracks during the collision.

[0015] By adopting the above technical solution, 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 a long and sharp fragment, it is determined as a dangerous fragment. If the number of dangerous fragments exceeds a certain amount, it indicates that there is an imbalance in the stress distribution in the glass edge area. 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 for the debris. And in this application, the collision time is extended, so the whole process of the crack from initiation to propagation can be captured by the crack analysis camera to locate the defect sensitive area.

[0016] Optionally, a push plate is arranged on the detection table, and the push plate is arranged below the splash-proof half-frame. A third electric telescopic rod is arranged on the side wall of the detection table, and the telescopic end of the third electric telescopic rod is fixedly connected to the push plate. A collection groove is arranged in the detection table, and a collection port for the push plate to push the debris into the collection groove is formed on the detection table.

[0017] By adopting the above technical solution, when the telescopic end of the third electric telescopic rod extends, it drives the push plate to move. The push plate moves to clean the debris on the detection table through the collection port into the collection groove for collection, so as to facilitate the debris analysis camera to analyze the debris generated by the next collision.

[0018] Optionally, a magnetic conductive material lining for improving the uniformity of the magnetic field generated by the energized coil is arranged inside the plastic damping tube.

[0019] By adopting the above technical solution, after adding a magnetic conductive material lining inside the plastic damping tube, the magnetic field distribution can be made more uniform, enabling the magnetic induction lines generated by the coil to penetrate the magnetorheological fluid region intensively, improving the magnetic field utilization rate. At the same time, the composite structure of the magnetic conductive lining and the plastic tube not only retains the characteristics of light weight and corrosion resistance, but also suppresses magnetic leakage and eddy current loss, ensuring that the magnetorheological fluid responds more linearly and still maintains a stable damping force under high-frequency vibration conditions, and enhancing the anti-magnetic saturation deformation ability of the plastic tube.

[0020] Optionally, a thixotropic agent for improving the service life and use effect of the magnetorheological fluid is added to the magnetorheological fluid.

[0021] By adopting the above technical solution, adding a thixotropic agent to the magnetorheological fluid can inhibit the sedimentation of magnetic particles and maintain a low viscosity under zero magnetic field. 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 severe shaking or high temperature, thereby realizing the efficient and durable performance of the magnetorheological fluid.

[0022] This application also includes a glass edge impact resistance detection method, which includes the following steps: S1: Place the glass on the second negative pressure head. The second negative pressure head fixes the glass by negative pressure adsorption, and then start the first electric telescopic rod to lower the second negative pressure head until it contacts and adsorbs the glass. S2: Start the second electric telescopic rod to close the two groups of splash-proof half-frames to wrap the glass. S3: Energize the coil. 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 show a change in fluidity in the changing magnetic field, changing the damping force received by the piston disc to simulate different working conditions. S4: Start the linear guide 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 the splash-proof half-frame. During the collision process, the crack analysis camera captures the whole process of the crack from initiation to propagation to locate the defect sensitive area. S5: Start the second electric telescopic rod. The second electric telescopic rod drives the two groups of splash-proof half-frames to separate until the fixed block contacts the fixed plate, and the moving plate pushes the debris in the splash-proof half-frame out of the splash-proof half-frame onto the detection table. S6: The debris analysis camera captures and analyzes the particle size and shape of the debris on the detection table. When the debris size exceeds a certain size or the debris is a long and sharp fragment, it is determined as dangerous debris. If the number of dangerous debris exceeds a certain amount, it indicates that there is an imbalance in the stress distribution in the edge area of the glass.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: 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, controlling the magnitude of the current can achieve control of the strength of the magnetic field. Since the magnetorheological fluid will show a change in fluidity in the changing magnetic field, the stronger the magnetic field, the worse the fluidity. Therefore, when the piston disc moves in the plastic damper and the magnetorheological fluid in the first chamber and the second chamber flows through the communication hole, the magnitude of the magnetic field strength can be indirectly changed by changing the magnitude of the current, thereby changing the magnitude of the damping force received by the piston disc, so as to achieve inelastic collision and extend the impact collision time. The damping of the impact block can also be adjusted by the magnetic field strength, so as to achieve simulation of inelastic collision of the glass edge under different working conditions such as hail and flying stones. 2. After long-term use, the temperature of the coil will be too high, which will affect the formed magnetic field strength. Therefore, the heat-conducting oil in the present application can absorb the heat generated by the coil, and then the heat-conducting oil between the plastic damping tube and the sleeve is pumped out by the oil pump. After the heat is dissipated and cooled through the liquid outlet pipe and the heat dissipation fins, it is re-input between the outer wall of the plastic damping tube and the inner wall of the sleeve through the liquid inlet pipe, so as to achieve cooling of the coil and improve the stability of the magnetic field generated by the coil. 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 dimension or the debris is a long and sharp fragment, it is determined as a dangerous fragment. If the number of dangerous fragments exceeds a certain amount, it indicates that there is an imbalance in the stress distribution in the glass edge area. 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. And in this application, the collision time is extended, so the whole process of crack initiation to propagation can be captured by the crack analysis camera to locate the defect sensitive area; 4. In the initial state, the two splash-proof half-frames are closed to wrap 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 splash-proof half-frames by the splash-proof half-frames and the impact block. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 is the overall structural schematic diagram of the embodiment of the present application; Figure 2 is Figure 1 the partial structural sectional view of Figure 3 is Figure 2 the enlarged schematic diagram of part A of

[0026] Reference numerals: 1, linear guide rail; 11, sliding seat; 12, mounting table; 13, plastic damping tube; 131, magnetic conductive 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, adjustment assembly; 31, coil; 32, sleeve; 33, current controller; 34, first bin; 35, second bin; 36, communication hole; 4, analysis mechanism; 41, fixing plate; 42, splash-proof half-frame; 43, second electric telescopic rod; 44, fixed rod; 45, moving plate; 46, analysis component; 461, crack analysis camera; 462, debris analysis camera; 463, long tube lamp; 47, second spring; 5, small oil pump; 51, liquid outlet pipe; 52, liquid inlet pipe; 53, heat dissipation fins; 6, push plate; 7, third electric telescopic rod; 8, collection tank; 9, collection port. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following combines the attached Figures 1-3Further details of this application will be described below.

[0028] An embodiment of this application discloses 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 includes 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 includes a sliding guide rail and a sliding seat 11. An installation table 12 is fixedly welded on the sliding seat 11. A plastic damping tube 13 is fixedly installed on the installation table 12. A piston disk 14 is movably installed in the plastic damping tube 13 along the length direction of the plastic damping tube 13. A connecting rod 15 is welded on one side of the piston disk 14 close to the mounting frame 2. The other end of the connecting rod 15 penetrates through the plastic damping tube 13 and is installed outside the plastic damping tube 13. And the connecting rod 15 is movably and hermetically connected with the plastic damping tube 13. An impact block 16 is fixedly welded on the end of the connecting rod 15 far from the piston disk 14; A first spring 17 is welded between the impact block 16 and the plastic damping tube 13. An adjusting assembly 3 is installed in the plastic damping tube 13. A first electric telescopic rod 21 is vertically and fixedly 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. The glass is placed between the first negative pressure head 22 and the second negative pressure head 23 for adsorption and fixation. An analysis mechanism 4 is also installed on the mounting frame 2. There are two sets of analysis mechanisms 4, and the two sets of analysis mechanisms 4 are symmetrically installed on both sides of the second negative pressure head 23.

[0029] Place the glass on the second negative pressure head 23. The second negative pressure head 23 fixes the glass by negative pressure adsorption. Then start the first electric telescopic rod 21 to lower the second negative pressure head 23 to abut against and adsorb the glass, thereby further improving the stability of the glass. Drive the plastic damping tube 13 on the mounting table 12 to move through the sliding seat 11 on the linear guide rail 1. The plastic damping tube 13 drives the piston disk 14 and the impact block 16 to move synchronously until they hit the edge of the glass. In this embodiment, the adjustment assembly 3 can achieve inelastic collision when the impact block 16 collides with the glass edge, during the deformation process of the glass edge, and during the elastic rebound process of the glass edge. By adjusting the damping force received by the impact block 16, it is possible to simulate the inelastic collision of the glass edge under different working conditions such as hail and flying stones. At the same time, when the adjustment assembly 3 realizes the inelastic collision, it also extends the collision time to an observable range, facilitating the analysis mechanism 4 in this embodiment to capture and analyze the crack propagation path and locate the defect sensitive area. In addition, the analysis mechanism 4 in this embodiment can also perform a hazard analysis on the debris generated by the collision to determine whether there is an imbalance in the stress distribution at the glass edge. After the collision, adjust the damping force received by the impact block 16 to the minimum. Under the action of the first spring 17, the impact block 16 resets. Under the action of the linear guide rail 1, the sliding seat 11 resets to prepare for the next collision.

[0030] Refer to Figure 1 、 Figure 2 and Figure 3 In order to adjust the damping force received by the impact block 16, the adjustment assembly 3 in this embodiment includes a coil 31, a sleeve 32, and a current controller 33. The coil 31 is wound around the outer wall of the plastic damping tube 13. Both ends of the coil 31 are connected to the current controller 33. The sleeve 32 is sleeved outside the coil 31 and is fixedly and hermetically connected to both ends of the plastic damping tube 13. The piston disk 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 communication hole 36 is provided on the piston disk 14, and a thixotropic agent is added to the magnetorheological fluid.

[0031] After the coil 31 is energized, a stable and uniform axial magnetic field can be generated inside the coil 31. The current controller 33 can adjust the magnitude of 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 magnitude of the current can achieve the control of the magnetic field strength. Since the magnetorheological fluid will change its fluidity in a changing magnetic field, and the stronger the magnetic field, the worse the fluidity, the piston disk 14 moves inside the plastic damper. When the magnetorheological fluid in the first chamber 34 and the second chamber 35 flows through the communication hole 36, the magnetic field strength can be indirectly changed by changing the current magnitude, thereby changing the damping force on the piston disk 14, so as to achieve inelastic collision and extend the impact collision time. Adding a thixotropic agent to the magnetorheological fluid can suppress the settlement of magnetic particles and maintain a low viscosity under zero magnetic field. When the magnetic field is turned on, the thixotropic agent can quickly align the magnetic particles into chains, and can also improve the adaptability of the magnetorheological fluid to violent shaking or high temperature, thereby achieving efficient and durable magnetorheological fluid performance. In this embodiment, the thixotropic agent is silica powder, and the silica powder is a preferred method in this embodiment. In other embodiments, the thixotropic agent can be alumina powder, etc.

[0032] Referring to Figure 3 , after the coil 31 is used for a long time, the coil 31 will heat up, thus affecting the stability of the formed magnetic field strength. Therefore, in this embodiment, a gap is provided between the outer wall of the plastic damping tube 13 and the inner wall of the sleeve 32. Heat-conducting oil for conducting the heat generated by the coil 31 is provided in the gap. A liquid outlet pipe 51 is connected to the sleeve 32. A small oil pump 5 is provided 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. A liquid inlet pipe 52 is provided at the liquid outlet of the small oil pump 5. One end of the liquid inlet pipe 52 away from the small oil pump 5 is connected to the sleeve 32. Heat dissipation fins 53 are provided on the liquid outlet pipe 51. The heat-conducting oil can absorb the heat generated by the coil 31, and then the heat-conducting oil between the plastic damping tube 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, it is re-input between the outer wall of the plastic damping tube 13 and the inner wall of the sleeve 32 through the liquid inlet pipe 52, so as to cool the coil 31 and improve the stability of the magnetic field generated by the coil 31.

[0033] Referring to Figure 1 and Figure 2, in order to realize the risk analysis of the glass fragments generated after the collision and the rapid capture and analysis of the cracks that appear in the glass during the impact process, the analysis mechanism 4 in this embodiment includes 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 component 46. The fixed plate 41 is vertically fixedly welded and installed on the mounting frame 2. The fixed end of the second electric telescopic rod 43 is bolted and installed on the fixed plate 41. The splash-proof half-frame 42 is fixedly welded and installed on the telescopic end of the second electric telescopic rod 43. An impact port is provided on the splash-proof half-frame 42 corresponding to the impact block 16. The moving plate 45 is slidably installed in the splash-proof half-frame 42. The fixed rod 44 is fixedly welded and installed on the side of the moving plate 45 away from the second negative pressure head 23. The other end of the fixed rod 44 movably penetrates the splash-proof half-frame 42 and is fixedly welded and connected with a fixed block. A second spring 47 is installed between the fixed block and the splash-proof half-frame 42, and the second spring 47 is sleeved and installed on the fixed rod 44. The analysis component 46 is installed on the mounting frame 2.

[0034] In the initial state, the two splash-proof half-frames 42 are closed to wrap the glass. The impact block 16 enters the splash-proof half-frame 42 from the impact port 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, driving the two 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, relative movement occurs between the moving plate 45 and the splash-proof half-frame 42, 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 onto 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 onto the detection table. After the analysis component 46 on the mounting frame 2 performs a risk analysis on the debris on the detection table, the telescopic end of the second electric telescopic rod 43 is extended to make the splash-proof half-frame 42 move 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, and the two splash-proof half-frames 42 abut against each other, thereby realizing the reset of the splash-proof half-frame 42 and the moving plate 45.

[0035] Refer to Figure 1 and Figure 2, in this embodiment, the analysis component 46 includes a crack analysis camera 461, a debris analysis camera 462, and a long tube lamp 463. The debris analysis camera 462 is bolted and installed on the mounting bracket 2, the long tube lamp 463 is bolted and installed on the mounting bracket 2, and the crack analysis camera 461 is bolted and installed on the inner top wall of the splash-proof half-frame 42. The debris 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 a long and sharp fragment, it is determined as a dangerous fragment. If the number of dangerous fragments exceeds a certain amount, it indicates that there is an imbalance in the stress distribution in the glass edge area. The long tube lamp 463 is used to irradiate and reflect the debris, thereby improving the capture effect and analysis accuracy of the debris analysis camera 462 for the debris. In this embodiment, the collision time is extended, so the entire process of crack initiation to propagation can be captured by the crack analysis camera 461 to locate the defect-sensitive area, and the crack analysis camera is a high-speed camera.

[0036] Refer to Figure 1 and Figure 2 , a push plate 6 is movably installed on the detection table, and the push plate 6 is installed below the splash-proof half-frame 42. A third electric telescopic rod 7 is bolted and installed on the side wall of the detection table. The telescopic end of the third electric telescopic rod 7 is fixedly welded to the push plate 6. A collection tank 8 is placed inside the detection table, and a collection port 9 is opened on the detection table. When the telescopic end of the third electric telescopic rod 7 extends, it drives the push plate 6 to move. The push plate 6 moves to clean the debris on the detection table through the collection port 9 into the collection tank for collection, so as to facilitate the debris analysis camera 462 to analyze the debris generated by the next collision.

[0037] Refer to Figure 3 , a magnetic conductive material lining 131 is embedded inside the plastic damping tube 13. After adding the magnetic conductive material lining 131 inside the plastic damping tube 13, the magnetic field distribution can be made more uniform, enabling the magnetic induction lines generated by the coil 31 to penetrate the magnetorheological fluid region intensively, improving the magnetic field utilization rate. At the same time, the composite structure of the magnetic conductive lining and the plastic tube not only retains the characteristics of light weight and corrosion resistance but also suppresses magnetic leakage and eddy current losses, ensuring a more linear response of the magnetorheological fluid and maintaining a stable damping force under high-frequency vibration conditions, and enhancing the anti-magnetic saturation deformation ability of the plastic tube. In this embodiment, the magnetic conductive material lining 131 can be an iron-based material, and the iron-based material is a preferred method in this embodiment. In other embodiments, the magnetic conductive material lining 131 can be a nickel-based material or the like.

[0038] The implementation principle of an impact-resistant detection device for the glass edge in an embodiment of this application is as follows: In the initial state, two splash-proof half-frames 42 are closed to wrap the glass. The magnitude of the current passing through the coil 31 is adjusted by the current controller 33 to determine the magnetic field strength inside the coil 31. The magnetorheological fluid will exhibit a change in fluidity in the changing magnetic field, thereby achieving inelastic collision and extending the impact collision time. The impact block 16 enters the splash-proof half-frame 42 from the impact port to impact the glass. During the impact process, the crack analysis camera 461 captures the whole process of the crack from initiation to propagation, locates the defect-sensitive area, and the debris generated by the impact is intercepted inside the splash-proof half-frame 42.

[0039] Then, the second electric telescopic rod 43 is activated. The telescopic end of the second electric telescopic rod 43 shortens, driving the two 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, relative movement occurs between the moving plate 45 and the splash-proof half-frame 42, and the second spring 47 is compressed. The moving plate 45 pushes the debris inside the splash-proof half-frame 42 out of the splash-proof half-frame 42 onto 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 inside the splash-proof half-frame 42 onto the detection table. The debris analysis camera 462 captures and analyzes the particle size and shape of the debris on the detection table. When the debris size exceeds a certain size or the debris is a long and sharp fragment, it is determined as a dangerous fragment. If the number of dangerous fragments exceeds a certain amount, it indicates that there is an imbalance in the stress distribution in the glass edge area.

[0040] This application also discloses a glass edge anti-impact detection method: S1: Place the glass on the second negative pressure head 23. The second negative pressure head 23 performs negative pressure adsorption and fixation on the glass, and then activate the first electric telescopic rod 21 to lower the second negative pressure head 23 to abut against and adsorb the glass; S2: Activate the second electric telescopic rod 43 to close the two splash-proof half-frames 42 to wrap the glass; S3: The coil 31 is energized, and the current controller 33 can adjust the magnitude of the current passing through the coil 31. After a stable magnetic field is formed, the magnetorheological fluid will exhibit a change in fluidity in the changing magnetic field, changing the damping force received by the piston disk 14 to simulate different working conditions; S4: Activate the linear guide rail 1 to make the impact block 16 collide with the glass edge at a set speed. The debris generated by the impact is intercepted inside the splash-proof half-frame 42. During the collision process, the crack analysis camera 461 captures the whole process of the crack from initiation to propagation and locates the defect-sensitive area; S5: Activate the second electric telescopic rod 43. The second electric telescopic rod 43 drives the two 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 inside the splash-proof half-frame 42 out of the splash-proof half-frame 42 onto the detection table; S6: The debris analysis camera 462 captures and analyzes the particle size and shape of the debris on the test bench. When the size of the debris exceeds a certain dimension or the debris is a long and sharp fragment, it is determined as a dangerous fragment. If the number of dangerous fragments exceeds a certain amount, it indicates that there is an imbalance in the stress distribution in the glass edge area.

[0041] Unless otherwise defined, the technical terms or scientific terms used in this application shall have the ordinary meanings understood by those of ordinary skill in the art to which this application pertains. The terms "first", "second", "third" and similar terms used in the specification and claims of this application do not denote any order, quantity or importance, but are only used to distinguish different components. The terms such as "a" or "an" do not denote a quantity limitation, but indicate the existence of at least one. The terms such as "comprising" or "including" mean that the elements or items appearing before "comprising" or "including" cover the elements or items listed after "comprising" or "including" and their equivalents, and do not exclude other elements or items. The terms such as "upper", "lower", "left", "right" are only used to indicate the relative positional relationship, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0042] The above are all optional embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of this application shall be covered by the protection scope of this application.

Claims

1. An impact-resistant detection device for the edge of glass, comprising a detection table, characterized in that: A linear guide rail and a mounting bracket are provided on the detection table. The mounting bracket is arranged on one side of the linear guide rail. The linear guide rail includes a sliding guide rail and a sliding seat. An installation table is fixedly arranged on the sliding seat. A plastic damping tube is arranged on the installation table. A piston disk is movably arranged in the plastic damping tube along the length direction of the plastic damping tube. A connecting rod is arranged on one surface of the piston disk close to the mounting bracket. The other end of the connecting rod penetrates through the plastic damping tube and is arranged outside the plastic damping tube. The connecting rod is movably and hermetically connected with the plastic damping tube. An impact block for impacting the edge of the glass is fixedly arranged at the end of the connecting rod away from the piston disk. A first spring is arranged between the impact block and the plastic damping tube. An adjusting assembly for adjusting the damping buffer effect of the impact block in real time is arranged in the plastic damping tube. A first electric telescopic rod is vertically arranged on the mounting bracket. A first negative pressure head is arranged at the telescopic end of the first electric telescopic rod. A second negative pressure head is fixedly arranged on the mounting bracket. The first negative pressure head is arranged 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. An analysis mechanism for collecting and analyzing the fragments generated after the impact of the impact block on the glass and analyzing the generation of cracks is also arranged on the mounting bracket. There are two groups of the analysis mechanisms, and the two groups of the analysis mechanisms are symmetrically arranged on both sides of the second negative pressure head.

2. The glass edge impact resistance detection device according to claim 1, characterized in that: The adjusting assembly includes a coil, a sleeve and a current controller. The coil is wound around the outer wall of the plastic damping tube. Both ends of the coil are connected with the current controller. The sleeve is sleeved outside the coil and is fixedly and hermetically connected with both ends of the plastic damping tube. The piston disk divides the plastic damper into a first chamber and a second chamber. Both the first chamber and the second chamber are filled with magnetorheological fluid. A communication hole for the magnetorheological fluid in the first chamber and the magnetorheological fluid in the second chamber to communicate with each other is opened on the piston disk.

3. The glass edge impact resistance detection device according to claim 2, characterized in that: 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 the heat generated by the coil is arranged in the gap. A liquid outlet pipe is communicated with the sleeve. A small oil pump is arranged on the installation table. One end of the liquid outlet pipe away from the sleeve is connected with the liquid inlet of the small oil pump. A liquid inlet pipe is arranged at the 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. Heat dissipation fins are arranged on the liquid outlet pipe.

4. A glass edge impact resistance detection device according to claim 1, characterized in that: The analysis mechanism includes a fixed plate, a splash-proof half-frame, a second electric telescopic rod, a fixed rod, a moving plate, and an analysis component. The fixed plate is vertically and fixedly arranged on the mounting rack. The fixed end of the second electric telescopic rod is fixedly arranged on the fixed plate. The splash-proof half-frame is fixedly arranged on the telescopic end of the second electric telescopic rod. An impact opening is formed in the splash-proof half-frame corresponding to the impact block. The moving plate is slidably arranged in the splash-proof half-frame. The fixed rod is fixedly arranged on the side of the moving plate away from the second negative pressure head, and the other end of the fixed rod movably penetrates through the splash-proof half-frame and is fixedly connected with a fixed block. A second spring is arranged between the fixed block and the splash-proof half-frame. The two splash-proof half-frames are closed to wrap 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 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 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 onto the detection table. The analysis component is arranged on the mounting rack and is used for performing a hazard analysis on the debris on the detection table.

5. The glass edge impact resistance detection device according to claim 4, characterized in that: The analysis component includes a crack analysis camera, a debris analysis camera, and a long tube lamp. The debris analysis camera is fixedly arranged on the mounting rack and is used for performing a hazard analysis on the debris on the detection table. The long tube lamp is arranged on the mounting rack and is used for irradiating and reflecting light on the debris to improve the analysis accuracy of the debris analysis camera. The crack analysis camera is arranged on the inner top wall of the splash-proof half-frame and is used for quickly capturing the process of generating cracks during the collision.

6. The glass edge impact resistance detection device according to claim 5, characterized in that: A push plate is arranged on the detection table, and the push plate is arranged below the splash-proof half-frame. A third electric telescopic rod is arranged on the side wall of the detection table, and the telescopic end of the third electric telescopic rod is fixedly connected with the push plate. A collection groove is arranged inside the detection table, and a collection opening for allowing the push plate to push the debris into the collection groove is formed on the detection table.

7. The glass edge impact resistance detection device according to claim 2, wherein: A magnetic conduction material lining layer for improving the uniformity of the magnetic field generated by the energization of the coil is arranged inside the plastic damping tube.

8. The glass edge impact resistance detection device according to claim 2, characterized in that: A thixotropic agent for improving the service life and use effect of the magnetorheological fluid is added to the magnetorheological fluid.

9. A method for detecting the impact resistance of a glass edge, according to the glass edge impact resistance detection device described in any one of claims 1-8, characterized in that: It includes the following steps: S1: Place the glass on the second negative pressure head. The second negative pressure head performs negative pressure adsorption and fixation on the glass, and then start the first electric telescopic rod to make the second negative pressure head descend and abut against the glass for adsorption. S2: Start the second electric telescopic rod to make the two splash-proof half-frames close to wrap the glass. S3: Energize the coil. The current controller can adjust the magnitude of the current passing through the coil. After forming a stable magnetic field, the magnetorheological fluid will show a change in fluidity in the changing magnetic field, changing the damping force received by the piston disc to simulate different working conditions. S4: Start the linear guide to make the impact block collide with the glass edge at a set speed. The debris generated by the impact is intercepted inside the splash-proof half-frame. During the collision process, the crack analysis camera captures the whole process of the crack from initiation to propagation to locate the defect-sensitive area; S5: Start the second electric telescopic rod. The second electric telescopic rod drives the two groups of splash-proof half-frames to separate until the fixed block abuts against the fixed plate, and the moving plate pushes the debris in the splash-proof half-frame out of the splash-proof half-frame onto the detection table; S6: The fragment analysis camera captures and analyzes the particle size and shape of the debris on the detection table. When the debris size exceeds a certain size or the debris is a long and sharp fragment, it is determined as a dangerous fragment. If the number of dangerous fragments exceeds a certain amount, it indicates that there is an imbalance in the stress distribution in the glass edge area.

Images