Edge chamfer strength measuring structure of 3D special-shaped glass
Through the edge chamfer strength measurement structure designed with multi-point limit and arched arc surface, the problem of insufficient measurement accuracy and reliability of edge chamfer strength of 3D special-shaped curved surface glass is solved, and high-precision and stable detection effect is achieved.
Patent Information
- Application Number
- CN202421866834.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-02
AI Technical Summary
In the prior art, the measurement accuracy of the 3D curved surface glass edge chamfer strength measurement device is not high and has insufficient reliability. It is mainly due to the large cumulative tolerance for fixture installation and low glass clamping accuracy, resulting in large errors in the detection result.
The edge chamfer strength measurement structure with multi-point limit is adopted. Through the cooperation of the prototypical positioning assembly and the compression assembly, the sliding rod is used to drive the press to slide or rotate the press to achieve rapid and stable clamping of glass, reducing clamping tolerances, and improving measurement accuracy through the arched arc surface design of the test pusher.
It improves the accuracy and reliability of glass edge chamfer strength measurement, reduces glass clamping errors, and ensures the accuracy and stability of the detection results.
Smart Images
Figure CN223078061U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of glass processing, in particular to a structure for measuring the edge chamfer strength of 3D special-shaped glass. Background Technique
[0002] For 3D special-shaped curved glass, internal stress accumulates at its edge, and during the processing, the processing difficulty of the glass edge part is relatively large, and micro-cracks are likely to occur, resulting in a decrease in the strength of the glass edge. Generally, the glass edge position is the main installation and stress-bearing point of the glass, and the strength of the glass edge directly affects the use and safety performance of the glass. Therefore, when processing 3D special-shaped curved glass, a chamfer structure is often set at the glass edge to reduce the internal stress and micro-cracks at the glass edge and meet the installation of the glass. In order to make the edge chamfer of 3D special-shaped glass meet the production and use requirements, after the chamfer processing of 3D special-shaped glass is completed, it is often necessary to measure the strength of its chamfer structure to ensure that the performance of the glass is qualified.
[0003] At present, in the industry, a strength measurement device with a lock box structure (as shown in Figure 1 ) is mainly used to measure the edge chamfer strength of 3D special-shaped glass. The lock box structure mainly includes a lower die core 2 installed on a lower fixed frame 1 and an upper die core 4 fixed on an upper fixed frame 3. The upper die core 4 and the lower die core 2 respectively have profiling surfaces corresponding to the two sides of the glass to be measured. The upper fixed frame 3 and the lower fixed frame 1 are arranged in central symmetry and fixedly connected so that a clamping area for clamping the glass to be measured is formed between the profiling surface of the upper die core 4 and the profiling surface of the lower die core 2. During the assembly process of the lock box structure, the upper die core 4 and the lower die core 2 are respectively placed in the grooves of the upper fixed frame 3 and the lower fixed frame 1 and locked and fixed by screws; then, after the upper fixed frame 3 and the lower fixed frame 1 are placed in position by pins, they are clamped and fixed by a spring clip 5; the installed frame assembly is placed on the measurement equipment installation platform through positioning columns and locked by screws. When clamping the glass, the glass is jointly clamped by the profiling surfaces of the upper die core 4 and the lower die core 2; during measurement, the push head 6 is a spherical structure, and the vertex of the sphere presses on the midpoint position of the glass chamfer to measure the maximum breaking pressure. In the above structure, since each component is positioned by shafts, holes, and grooves and locked by screws, the cumulative tolerance of the fixture installation is large, seriously affecting the glass clamping accuracy, the measurement point is offset, resulting in low accuracy and insufficient reliability of the detection result. In addition, since the large surface of the glass is pressed tightly, the deformation of the glass under the action of the push head pressure is restricted, resulting in a decrease in the strength measurement value and further reducing the measurement accuracy. Content of the Utility Model
[0004] Based on this, in view of the above deficiencies, it is necessary to provide a structure for measuring the edge chamfer strength of 3D special-shaped glass with high measurement accuracy and reliable measurement results.
[0005] A structure for measuring the edge chamfer strength of 3D special-shaped glass, comprising:
[0006] A bottom plate, the upper surface of the bottom plate having a first mounting position extending in the X-axis direction and a second mounting position opposite to the first mounting position;
[0007] A profiling positioning component, including at least one first support block fixed at the first mounting position and at least one second support block fixed at the second mounting position. A clamping space is formed between the first support block and the second support block. On the sides of the first support block and the second support block adjacent to the clamping space, there are respectively profiling support surfaces that fit the lower surface of the glass to be measured, and the second support block is provided with a first position and a second position;
[0008] A positioning template, the positioning template being fixed on the upper surface of the bottom plate and located beside the profiling positioning component. The positioning template abuts against the edge of the glass to be measured to limit the position of the glass to be measured in the X-axis direction;
[0009] A pressing component, including a first pressing block fixed on the first support block, a second pressing block slidably mounted on the second support block, and a sliding rod for adjusting the position of the second pressing block on the second support block. The first pressing block has a first pressing portion protruding towards the clamping space to jointly clamp one side edge of the glass to be measured with the first support block. The second pressing block has a second pressing portion protruding towards the clamping space to jointly clamp the other side edge of the glass to be measured with the second support block. The sliding rod rotatably penetrates through the second pressing block, and when the second pressing block slides between the first position and the second position driven by the sliding rod, it approaches or moves away from the clamping space. When the sliding rod rotates at the second position, the second pressing block locks and presses down to press the edge of the glass to be measured.
[0010] In one embodiment, a groove is formed on the upper surface of the second support block. The groove penetrates through two opposite side surfaces of the second support block and forms an insertion hole extending in the X-axis direction on each of the two opposite side surfaces of the second support block. The insertion hole includes a guiding portion extending in the Y-axis direction and a limiting portion communicating with the end of the guiding portion and adjacent to the clamping space. The end of the guiding portion facing away from the clamping space forms the first position, and the limiting portion forms the second position.
[0011] In one embodiment, the width of the limiting portion is greater than the width of the guiding portion. The width of the sliding rod is adapted to the width of the limiting portion, and the thickness of the sliding rod is adapted to the width of the guiding portion. The sliding rod penetrates through the second pressing block and the insertion holes on both sides of the second support block, and the height of the center of the limiting portion is lower than the height of the axis of the guiding portion; the sliding rod drives the second pressing block to slide in the guiding portion under an external pulling force, so that the second pressing block approaches or moves away from the glass to be measured; the sliding rod rotates in the limiting portion under the action of an external torsional force to lock the second pressing block and drive the second pressing block to press down to press the edge of the glass to be measured.
[0012] In one embodiment, a limiting block is fixed to the tail of the sliding rod. The thickness of the limiting block is less than or equal to the width of the guiding portion, and the width of the limiting block is greater than the width of the limiting portion.
[0013] In one embodiment, the width inside the jack is equal everywhere, and the setting height of the first position is higher than that of the second position. The inner surface of the limiting portion is provided with internal threads, and the rod body of the sliding rod is provided with external threads that are in threaded fit with the internal threads.
[0014] In one embodiment, a rotating grasping portion is provided at the head of the sliding rod.
[0015] In one embodiment, the vertical cross-section of the first pressing block is in an L-shaped structure, and the vertical cross-section of the second pressing block is in an L-shaped structure.
[0016] In one embodiment, the first pressing block and the second pressing block are made of an elastic material, or the surfaces of the first pressing block and the second pressing block have elastic protective layers.
[0017] In one embodiment, the first pressing block is fixed to the first supporting block by screws.
[0018] In one embodiment, the edge chamfer strength measurement structure further includes a test push head suspended above the clamping space and used for fixedly connecting with the machine table pressure sensing structure. The bottom of the test push head has an arched arc surface that contacts the glass edge line.
[0019] Implementing the edge chamfer strength measurement structure of the 3D special-shaped glass of the present utility model, through the cooperation of the first supporting block and the first pressing block, and the cooperation of the second supporting block and the second pressing block, the positioning of the edge of the glass to be measured is carried out in a multi-point limiting manner. While ensuring the stable clamping of the glass and improving the strength measurement accuracy, it is beneficial for the glass to deform under the pressure of the test push head to improve the reliability of the strength test value; by driving the second pressing block to slide with the sliding rod and restricting the position of the second pressing block, while ensuring that the second pressing block presses the glass edge tightly, sliding or rotating the sliding rod can position or release the glass, realizing the rapid and stable clamping of the glass. The glass clamping structure is simple, reducing the tolerance of glass clamping and the offset of the measurement point, improving the glass clamping accuracy and detection accuracy, and enhancing the reliability of the detection result. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic structural diagram of the strength measurement device with a lock box structure;
[0021] Figure 2 It is a schematic structural diagram of the edge chamfer strength measurement structure in one embodiment of the present utility model;
[0022] Figure 3 Schematic diagram of the first stage of clamping glass for the edge chamfer strength measurement structure in an embodiment of the present utility model;
[0023] Figure 4 is Figure 3 Schematic diagram of a partial cross-sectional structure in the A-A direction in the illustrated embodiment;
[0024] Figure 5 Schematic diagram of the second stage of clamping glass for the edge chamfer strength measurement structure in an embodiment of the present utility model;
[0025] Figure 6 is Figure 5 Schematic diagram of a partial cross-sectional structure in the B-B direction in the illustrated embodiment;
[0026] Figure 7 Schematic diagram of the cooperation between the sliding rod and the second support rod in another embodiment of the present utility model;
[0027] Figure 8 Schematic diagram of the structure during the test of the edge chamfer strength measurement structure in an embodiment of the present utility model. Detailed implementation manners
[0028] In order to make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will describe the detailed implementation manners of the present utility model in conjunction with the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.
[0029] Please refer to Figure 2 , the present utility model discloses an edge chamfer strength measurement structure 10 for 3D special-shaped glass with high measurement accuracy and reliable measurement results. The edge chamfer strength measurement structure includes a bottom plate 100, a profiling positioning assembly 200, a positioning template 300, and a pressing assembly 400. Among them, the bottom plate 100 is used to support the other components, the profiling positioning assembly 200 is used to hold the glass to be measured, the positioning template 300 is used to limit the glass to be measured in the X-axis direction, and the pressing assembly 400 is used to limit the glass to be measured in the Y-axis and Z-axis directions. In this embodiment, it is agreed that the X-axis direction is the length direction of the bottom plate 100, the Y-axis direction is the width direction of the bottom plate 100, and the Z-axis is the thickness direction of the bottom plate 100. During actual operation, the directions of the X-axis and Y-axis can be adjusted, but the plane formed by the X-axis and Y-axis is always horizontal or parallel to the horizontal plane, and the Z-axis direction is always the height direction of the bottom plate 100.
[0030] Specifically, please combineFigure 2-6 , the upper surface of the bottom plate 100 has a first mounting position extending along the X-axis direction and a second mounting position opposite to the first mounting position. It can also be understood that the first mounting position and the second mounting position are arranged at intervals along the Y-axis direction on the upper surface of the bottom plate 100, and both the first mounting position and the second mounting position extend along the X-axis direction. The profiling positioning assembly 200 includes at least one first support block 210 fixed at the first mounting position and at least one second support block 220 fixed at the second mounting position. A clamping space 230 is formed between the first support block 210 and the second support block 220. On the sides of the first support block 210 and the second support block 220 adjacent to the clamping space 230, profiling support surfaces 240 that are in contact with the lower surface of the glass to be measured are respectively provided, and the second support block 220 is provided with a first position and a second position. Preferably, in this embodiment, two first support blocks 210 are arranged at intervals at the first mounting position, and the two first support blocks 210 are arranged along the X-axis direction to jointly support one side edge of the glass to be measured. Two second support blocks 220 are arranged at intervals at the second mounting position, and the two second support blocks 220 are arranged along the X-axis direction to jointly support the other side edge of the glass to be measured. The positioning template 300 is fixed on the upper surface of the bottom plate 100 and is located beside the profiling positioning assembly 200. The positioning template 300 abuts against the edge of the glass to be measured to limit the position of the glass to be measured along the X-axis direction.
[0031] The pressing assembly 400 includes a first pressing block 410 fixed on the first support block 210, a second pressing block 420 slidably mounted on the second support block 220, and a sliding rod 430 for adjusting the position of the second pressing block 420 on the second support block 220. The first pressing block 410 has a first pressing portion 411 protruding towards the clamping space 230 to jointly clamp one side edge of the glass to be measured with the first support block 210. The second pressing block 420 has a second pressing portion 421 protruding towards the clamping space 230 to jointly clamp the other side edge of the glass to be measured with the second support block 220. Preferably, the vertical cross-section of the first pressing block 410 is in an L-shaped structure, and the vertical cross-section of the second pressing block 420 is in an L-shaped structure. The sliding rod 430 rotatably penetrates through the second pressing block 420, and when the second pressing block 420 slides between the first position and the second position driven by the sliding rod 430, it approaches or moves away from the clamping space 230. When the sliding rod 430 rotates at the second position, the second pressing block 420 locks and presses down to clamp the edge of the glass to be measured. That is to say, after the first pressing block 410 is installed on the first support block 210, the relative position relationship between the two always remains unchanged. During the clamping process of the glass to be measured, only need to insert one side edge of the glass into the area between the profiling support surface 240 of the first pressing block 410 and the first pressing portion 411, and place the other side of the glass to be measured on the profiling support surface 240 of the second support block 220. By adjusting the position of the sliding rod 430, the second pressing portion 421 of the second pressing block 420 is moved towards the edge of the glass to be measured. When the second pressing block 420 moves to the second position of the second support block 220, rotate the sliding rod 430, and the second pressing block 420 can be pressed down to clamp the edge of the glass to be measured. At the same time, the second pressing block 420 is locked to prevent the glass from shaking caused by the second pressing block 420 sliding on its own on the second support block 220, so as to improve the reliability of glass clamping and positioning, and ensure the accuracy and reliability of the detection accuracy and detection results.
[0032] Please combine Figure 2-6 and Figure 8, in this embodiment, a plurality of mounting holes 110 are formed in the bottom plate 100, and the bottom plate 100 can be fixed to the machine mounting plate by bolts passing through the mounting holes 110. The positioning template 300, the first support block 210, and the second support block 220 are fixed to the bottom plate 100 by screws. In this way, the machining allowance can be calculated and processed independently for the positioning template 300, the first support block 210, and the second support block 220 respectively, so as to reduce the machining difficulty of the edge chamfer strength measurement structure, save raw materials and reduce the processing cost. Due to the influence of assembly accuracy, the accuracy of the components processed separately and assembled is not high. Therefore, in this embodiment, after the positioning template 300, the first support block 210, and the second support block 220 are installed on the fixture, rework processing and adjustment are carried out again to eliminate the influence of insufficient assembly accuracy on the accuracy of the edge chamfer strength measurement structure, thereby improving the measurement accuracy. In one embodiment, the upper surfaces of the first support block 210 and the second support block 220 can be either horizontal surfaces or inclined surfaces. By defining the shapes of the upper surfaces of the first support block 210 and the second support block 220, the setting angles of the first pressing block 410 and the second pressing block 420 can be defined, so that the first pressing block 410 and the second pressing block 420 respectively press the edges of the glass to be measured, so as to adapt to 3D special-shaped glass with different surface shapes.
[0033] A groove 221 is formed in the upper surface of the second support block 220. The groove 221 penetrates through two opposite side surfaces of the second support block 220 and forms an insertion hole 222 extending in the X-axis direction on each of the two opposite side surfaces of the second support block 220. The insertion hole 222 includes a guiding portion 223 extending in the Y-axis direction and a limiting portion 224 communicating with the end of the guiding portion 223 and adjacent to the clamping space 230. One end of the guiding portion 223 facing away from the clamping space 230 forms a first position, and the limiting portion 224 forms a second position. A circular through hole for the sliding rod 430 to pass through is formed in the second pressing block 420. The sliding rod 430 passes through the second pressing block 420 and the two insertion holes 222 to realize the installation of the second pressing block 420 on the second support block 220. By pulling the sliding rod 430 to slide on the second support block 220, the second pressing block 420 can be driven to move between the first position and the second position, so that the second pressing block 420 approaches or moves away from the glass to be measured. At the same time, by rotating the sliding rod 430 located at the second position (i.e., the limiting portion 224), the second pressing block 420 is pushed to move downward in the vertical direction by the sliding rod 430 to press the glass to be measured, so as to realize the limitation of the glass to be measured in the Z-axis direction. It should be noted that in this solution, the sliding fit structure between the second pressing block 420 and the second support block 220 includes two cases, and the following will respectively describe the two fit structures between the second pressing block 420 and the second support block 220.
[0034] Please combine Figure 3-6, in one embodiment, the width of the limiting portion 224 is greater than the width of the guiding portion 223. The width of the sliding rod 430 is adapted to the width of the limiting portion 224, and the thickness of the sliding rod 430 is adapted to the width of the guiding portion 223. The sliding rod 430 passes through the insertion holes 222 on both sides of the second pressing block 420 and the second supporting block 220, and the height at the center of the limiting portion 224 is lower than the height of the axis of the guiding portion 223. The sliding rod drives the second pressing block 420 to slide within the guiding portion 223 under an external pulling force, so that the second pressing block 420 approaches or moves away from the glass to be measured. The sliding rod rotates within the limiting portion 224 under the action of an external torsional force to lock the second pressing block 420 and drive the second pressing block 420 to press down to clamp the edge of the glass to be measured. Further preferably, the guiding portion 223 is a straight strip-shaped hole extending in the Y-axis direction, and the limiting portion 224 is a circular hole centered on the axis of the straight strip-shaped hole and extending in the X-axis direction. The diameter of the circular hole is greater than the width of the straight strip-shaped hole. The rod body of the sliding rod 430 includes two relatively arranged and parallel planes, a first arc surface located on one side of the two planes and connected to the two planes respectively, and a second arc surface located on the other side of the two planes and connected to the two planes respectively. The distance between the two planes is the thickness of the sliding rod 430. The width of the sliding rod 430 is the same as the diameter of the cylinder where the first arc surface and the second arc surface are located. The thickness of the sliding rod 430 is equal to or slightly less than the width of the straight strip-shaped hole. The width of the sliding rod 430 is slightly less than the diameter of the circular hole, and the width of the sliding rod 430 is equal to or slightly less than the diameter of the circular through hole on the second pressing block 420.
[0035] In this way, when pulling the sliding rod 430, the first arc surface or the second arc surface of the sliding rod 430 abuts against the inner surface of the circular through hole of the second pressing block 420 to push the second pressing block 420 to move synchronously with the sliding rod 430. When the sliding rod 430 slides into the circular hole and rotates the sliding rod 430, since the diameter of the circular hole is greater than the width of the straight strip-shaped hole, and the height of the center of the limiting portion 224 (the center of the circular hole) is lower than the height of the axis of the guiding portion 223, the cylinders where the first arc surface and the second arc surface are located and the circular hole form an eccentric circle structure. In this way, when the sliding rod 430 rotates, it will push the second pressing block 420 to move downward, so that the second pressing portion 421 of the second pressing block 420 clamps the edge of the glass to be measured. At the same time, the first arc surface or the second arc surface abuts against the inner surface of the circular hole, which can prevent the sliding rod 430 from moving along the length direction of the guiding portion 223 and resetting, realizing the limitation of the second pressing block 420. In order to prevent the sliding rod 430 from falling off during the glass measurement process, a limiting block 431 is fixed to the tail of the sliding rod 430. The thickness of the limiting block 431 is less than or equal to the width of the guiding portion 223, and the width of the limiting block 431 is greater than the width of the limiting portion 224. In this way, after the sliding rod 430 rotates at the second position, the limiting block 431 abuts against the edge of the circular hole, realizing the limitation of the sliding rod 430 to ensure the stability of the edge chamfer strength measurement structure.
[0036] Please refer to Figure 7 In another embodiment, the width inside the jack 222 is equal everywhere, and the setting height of the first position is higher than the setting height of the second position. The inner surface of the limiting portion 224 is provided with internal threads, and the rod body of the sliding rod 430 is provided with external threads that are in threaded fit with the internal threads. Further, an arc-shaped guiding surface 225 is provided at the connecting portion between the limiting portion 224 and the guiding portion 223 to reduce the difficulty of the sliding rod 430 entering or leaving the limiting portion 224, thereby reducing the clamping difficulty of the glass. In this embodiment, when the sliding rod 430 moves to the transition portion between the limiting portion 224 and the guiding portion 223, since the setting height of the first position is higher than the setting height of the second position, as the sliding rod 430 moves in the direction close to the clamping space, the sliding rod 430 will slide into the limiting portion 224, and the height position of the sliding rod 430 drops. During this process, the sliding rod 430 will drive the second pressing block downward, so that the second pressing portion of the second pressing block presses against the edge of the glass to be measured. Subsequently, the sliding rod 430 is rotated so that the external threads on the sliding rod 430 are in threaded fit and locked with the internal threads of the limiting portion 224 to realize the limitation of the second pressing block.
[0037] In one embodiment, the head of the sliding rod 430 is provided with a rotating gripping portion 432. Preferably, the rotating gripping portion 432 is a nut, and the outer diameter of the circumscribed circle of the nut is larger than the width of the limiting portion 224 to prevent the head of the sliding rod 430 from passing through the jack 222 during the measurement process, thereby causing the sliding rod 430 to fall off the second support block 220 and ensuring the stability of the edge chamfer strength measurement structure.
[0038] In one embodiment, the first pressing block 410 and the second pressing block 420 are made of an elastic material, or the surfaces of the first pressing block 410 and the second pressing block 420 have elastic protective layers. Preferably, both the first pressing block 410 and the second pressing block 420 are made of rubber or silica gel materials to prevent the first pressing block 410 and the second pressing block 420 from scratching or crushing the glass and reducing the defective products generated during the glass measurement process. In this embodiment, the first pressing block 410 is fixed to the first support block 210 by screws 412. Further, the first pressing block 410 is fixed to the first pressing block 410 by a plurality of screws 412, and the screws are stepped screws. In this way, by selecting a specific specification of the stepped screw, the locking degree of the first pressing block 410 on the first support block 210 can be limited, and thus the distance between the profiling support surface 240 on the first support block 210 and the first pressing portion 411 can be accurately controlled.
[0039] Please refer to Figure 8, In one embodiment, the edge chamfer strength measurement structure further includes a test push head 500 suspended above the clamping space 230 and used for fixedly connecting with the machine table pressure sensing structure. The bottom of the test push head 500 has an arched arc surface that contacts the glass edge line. Due to certain errors in the machining and assembly of the fixture, the placement of the glass will shift; and the glass edge chamfer is very small (only 0.1 mm). The push head of the traditional 3D glass chamfer strength test device uses a ball head structure, and the contact between the push head and the glass chamfer part is point contact. The position of the ball head is extremely easy to shift outside the chamfer and cannot be measured, making the chamfer measurement difficult. In this embodiment, by providing an arched arc surface that contacts the glass edge line at the bottom of the test push head 500, the bottom end of the test push head 500 can be regarded as a line. During measurement, it only needs to satisfy that the chamfer measurement point is on this line, which improves the tolerance rate of the edge chamfer strength measurement structure and thus reduces the difficulty of measuring the glass chamfer strength.
[0040] In this embodiment, the edge chamfer strength measurement structure further includes a push head mounting structure. The push head mounting structure includes a connecting pipe 510, a swivel joint 520 detachably mounted at the top of the connecting pipe 510 and used for fixing on the machine table pressure sensing structure, a locking ring 530 for locking the swivel joint 520 on the connecting pipe 510, and a locking nut 540 for locking the test push head 500 at the bottom end of the connecting pipe 510. The connecting pipe 510 is made of an elastic material. External threads are provided on both the outer surface of the upper part and the outer surface of the lower part of the connecting pipe 510, and a plurality of avoidance notches are provided in both the upper part and the lower part of the connecting pipe 510. Internal threads are provided on the inner surfaces of the locking ring 530 and the locking nut 540. The outer diameters of the top end and the bottom end of the connecting pipe 510 are smaller than the outer diameters of the other parts of the connecting pipe 510 to reduce the installation difficulty of the locking ring 530 and the locking nut 540 on the connecting pipe 510. When installing the test push head 500, only need to tighten the locking ring 530 and the locking nut 540, and the locking ring 530 and the locking nut 540 will respectively press the connection part between the swivel joint 520 and the upper part of the connecting pipe 510 and the connection part between the test push head 500 and the lower part of the connecting pipe 510, so as to realize the assembly of the test push head 500 and the swivel joint 520. During the test, after the glass is clamped, make the bottom of the test push head 500 correspond to the preset part on the glass. The machine table driving mechanism drives the test push head 500 to slowly press down until the glass is broken, and then lift the test push head 500 and remove the glass and fragments.
[0041] The edge chamfer strength measurement structure 10 of the above-mentioned 3D special-shaped glass positions the glass edge to be measured by the cooperation of the first support block 210 and the first pressing block 410, and the cooperation of the second support block 220 and the second pressing block 420, using a multi-point limiting method. While ensuring stable clamping of the glass and improving the accuracy of strength measurement, it is beneficial for the glass to deform under the pressure of the test push head 500 to improve the reliability of the strength test value; by driving the second pressing block 420 to slide through the sliding rod 430 and restricting the position of the second pressing block 420, while ensuring that the second pressing block 420 presses the glass edge tightly, sliding or rotating the sliding rod 430 can position or release the glass, realizing fast and stable clamping of the glass. The glass clamping structure is simple, reducing the tolerance of glass clamping and the offset of the measurement point, improving the glass clamping accuracy and detection accuracy, and enhancing the reliability of the detection result.
[0042] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.
[0043] The above-described embodiments only represent several implementation manners of the present invention, and the description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.
Claims
1. A measuring structure for the edge chamfer strength of a 3D special-shaped glass, characterized in that, Comprising: A bottom plate, on the upper surface of which there is a first mounting position extending in the X-axis direction and a second mounting position opposite to the first mounting position; A profiling positioning assembly, including at least one first support block fixed at the first mounting position and at least one second support block fixed at the second mounting position. A clamping space is formed between the first support block and the second support block. On one side of the first support block and the second support block adjacent to the clamping space, there are respectively profiling support surfaces that fit the lower surface of the glass to be measured. And on the second support block, there are a first position and a second position; A positioning template, which is fixed on the upper surface of the bottom plate and is located beside the profiling positioning assembly. The positioning template abuts against the edge of the glass to be measured to limit the position of the glass to be measured in the X-axis direction; A pressing assembly, including a first pressing block fixed on the first support block, a second pressing block slidably mounted on the second support block, and a sliding rod for adjusting the position of the second pressing block on the second support block. The first pressing block has a first pressing portion protruding towards the clamping space to jointly clamp one side edge of the glass to be measured with the first support block. The second pressing block has a second pressing portion protruding towards the clamping space to jointly clamp the other side edge of the glass to be measured with the second support block. The sliding rod rotatably penetrates through the second pressing block, and when the second pressing block slides between the first position and the second position driven by the sliding rod, it approaches or moves away from the clamping space. When the sliding rod rotates at the second position, the second pressing block is locked and pressed down to press the edge of the glass to be measured.
2. The edge chamfer strength measurement structure according to claim 1, characterized in that On the upper surface of the second support block, there is a groove, which penetrates through two opposite side surfaces of the second support block and forms an insertion hole extending in the X-axis direction on each of the two opposite side surfaces of the second support block. The insertion hole includes a guiding portion extending in the Y-axis direction and a limiting portion communicating with the end of the guiding portion and adjacent to the clamping space. The end of the guiding portion facing away from the clamping space forms the first position, and the limiting portion forms the second position.
3. The edge chamfer strength measurement structure according to claim 2, characterized in that The width of the limiting portion is greater than the width of the guiding portion. The width of the sliding rod is adapted to the width of the limiting portion, and the thickness of the sliding rod is adapted to the width of the guiding portion. The sliding rod passes through the second pressing block and the insertion holes on both sides of the second support block, and the height of the center of the limiting portion is lower than the height of the axis of the guiding portion; the sliding rod drives the second pressing block to slide in the guiding portion under an external pulling force, so that the second pressing block approaches or moves away from the glass to be measured; the sliding rod rotates in the limiting portion under the action of an external torsional force to lock the second pressing block and drive the second pressing block to press down to press the edge of the glass to be measured.
4. The edge chamfer strength measurement structure according to claim 3, characterized in that, A limiting block is fixed at the tail of the sliding rod. The thickness of the limiting block is less than or equal to the width of the guiding portion, and the width of the limiting block is greater than the width of the limiting portion.
5. The edge chamfer strength measurement structure according to claim 2, characterized in that, The width inside the insertion hole is equal everywhere, and the setting height of the first position is higher than the setting height of the second position. The inner surface of the limiting portion is provided with internal threads, and the rod body of the sliding rod is provided with external threads that are threadedly engaged with the internal threads.
6. The edge chamfer strength measurement structure according to any one of claims 3-5, characterized in that The head of the sliding rod is provided with a rotating gripping portion.
7. The edge chamfer strength measurement structure according to claim 1, characterized in that The vertical cross-section of the first pressing block is in an L-shaped structure, and the vertical cross-section of the second pressing block is in an L-shaped structure.
8. The edge chamfer strength measurement structure according to claim 1, wherein The first pressing block and the second pressing block are made of an elastic material, or the surfaces of the first pressing block and the second pressing block are provided with elastic protective layers.
9. The edge chamfer strength measurement structure according to claim 1, characterized in that, The first pressing block is fixed to the first supporting block by screws.
10. The edge chamfer strength measurement structure according to claim 1, characterized in that, It further includes a test push head suspended above the clamping space and used for fixedly connecting with the machine table pressure sensing structure, and the bottom of the test push head has an arched arc surface that contacts the glass edge line.