An automatic test device for the anti-smashing performance of transparent materials

Abstract

The present invention belongs to the technical field of transparent materials, and particularly relates to an automatic test device for the anti-smashing performance of transparent materials. Multiple servo motors and multiple electric control telescopic rods are used to automatically control the dropping hammer and the specimen, and multiple monitoring cameras are arranged on the entire device, enabling the PLC controller to analyze the images and thus accurately control the movement of each component, realizing automatic detection, eliminating the errors caused by human factors, and greatly improving the detection accuracy and efficiency. In addition, the present invention is provided with an anti-secondary smashing device, which effectively prevents the dropping hammer from rebounding and secondarily smashing the specimen, ensuring the quality and accuracy of the detection.

Description

Technical Field

[0001] The present invention belongs to the technical field of transparent materials, and particularly relates to an automatic test device for the anti-smashing performance of transparent materials. Background Art

[0002] For plates with a thickness of more than 4 mm and certain light transmittance requirements, when used for security requirements, they need to meet certain anti-smashing performance. Currently, the tests for this performance mainly rely on manual operations, with many human interference factors, often resulting in misjudgments, and the test quality and efficiency are not high. There is currently no automatic test device dedicated to the anti-smashing performance of transparent materials. Summary of the Invention

[0003] The problem to be solved by the present invention is to overcome the deficiencies of the background art and provide an automatic test device for the anti-smashing performance of transparent materials.

[0004] The present invention is achieved through the following technical solutions:

[0005] An automatic test device for the anti-smashing performance of transparent materials, including a workbench frame for placing specimens. A square hole is provided at the center of the workbench frame, and the size of the square hole is the same as that of the specimen. A pair of right-angle frames are spliced to form a clamping frame and placed above the square hole. An inward groove is provided on the inner side of the right-angle frame, and after the grooves of the two right-angle frames are spliced, the size is the same as that of the specimen. At each right angle of the right-angle frame, a connecting block is fixedly installed outward, and the connecting block is fixed on the telescopic end A of the electric control telescopic rod A. The electric control telescopic rod A is fixed on the workbench frame, and the electric control telescopic rod A is connected to the PLC controller. The axis centerlines of the two electric control telescopic rods A coincide with the diagonal of the clamping frame. A micro pressure sensor is installed at the splicing position of the right-angle frames, and the micro pressure sensor is connected to the PLC controller; An electric control telescopic rod C is fixed on the workbench frame, and a horizontal thin tray is fixed on the telescopic end C of the electric control telescopic rod C through a connecting sleeve. The horizontal thin tray is located above the specimen, and the electric control telescopic rod C is connected to the PLC controller; A door-type frame is fixed on the outside of the workbench frame. Servo motors D are respectively fixed on the left and right sides inside the door-type frame. The servo motors D are connected to the PLC controller. The motor shaft D of the servo motor D is connected upward to a vertical lead screw through a flange. The top of the vertical lead screw is fixed on the top plate of the door-type frame through a centripetal thrust bearing. A nut is screwed on the vertical lead screw. A horizontal connecting plate is welded between the two nuts. A left end bottom surface of the horizontal connecting plate is fixedly installed with an electric control telescopic rod B downward. The electric control telescopic rod B is connected to the PLC controller. At the end of the horizontal telescopic end B of the electric control telescopic rod B, a U-shaped frame is fixed. A servo motor C is fixed on the outside of the U-shaped frame. The servo motor C is connected to the PLC controller. The motor shaft C of the servo motor C passes through the U-shaped frame and is key-connected to a concave wheel inside the U-shaped frame. A flexible thin rope is wound around the concave wheel, and the outer end of the flexible thin rope is connected to a suspension ring of a drop hammer; An electric claw device is fixed on the bottom surface of the horizontal connecting plate to the right of the drop hammer. The electric claw device is connected to the PLC controller; A monitoring camera D is installed below the center of the horizontal connecting plate. A monitoring camera C is installed at any right angle corresponding to the square hole on the workbench frame. Monitoring cameras B are symmetrically installed above the right-angle frames on the workbench frame. Monitoring cameras A are symmetrically installed below the specimen. The monitoring cameras A, B, C, and D are all connected to the PLC controller.

[0006] Further, elastic buffer materials are installed in the grooves.

[0007] Further, a collection tray is placed below the square hole.

[0008] Further, the workbench frame is welded by steel sections with a wall thickness greater than 4 mm.

[0009] Further, the monitoring camera A is fixed on a connecting rod, and the connecting rod is fixed on the workbench frame through bolts.

[0010] Further, the monitoring camera B is fixed on a support rod, and the support rod is fixed on the workbench frame by bolts.

[0011] Further, the specimen is a square with a size of 610mm×610mm.

[0012] The automatic test device for the anti-smashing performance of the transparent material of the present invention automatically controls the dropping hammer and the specimen through multiple servo motors and multiple electric control telescopic rods, and a plurality of monitoring cameras are arranged on the entire device, so that the PLC controller precisely controls the movement of each component, realizes automatic detection, eliminates the errors caused by human factors, and greatly improves the detection accuracy and efficiency. In addition, the present invention is provided with an anti-secondary impact device, which effectively prevents the dropping hammer from rebounding and secondarily impacting the specimen, and ensures the quality and accuracy of the detection. Description of the Drawings

[0013] Figure 1 is Figure 2 The A-A cross-sectional view of.

[0014] Figure 2 is Figure 1 The B-B cross-sectional view of.

[0015] Figure 3 is Figure 2 The C-direction view of.

[0016] Figure 4 It is the position diagram of the dropping hammer pulling rope in the hanging state.

[0017] Figure 5 is Figure 2 The state diagram after removing the specimen in.

[0018] Figure 6 is Figure 4 The partial enlarged D-direction view of.

[0019] Figure 7 is Figure 4 The E-E cross-sectional view in.

[0020] In the figure: 1 collection tray, 2 monitoring camera A, 3 workbench stand, 6 electric control telescopic rod A, 8 door-type frame, 9 top plate, 11 angular contact bearing, 12 vertical lead screw, 13 nut, 14 horizontal connecting plate, 16 electric control telescopic rod B, 17 telescopic end B, 18 U-shaped frame, 19 concave wheel, 20 motor shaft C, 21 parallel jaws, 22 drop hammer, 23 flexible thin rope, 24 electric gripper device, 25 support rod, 26 monitoring camera B, 27 telescopic end A, 28 connecting block, 29 right-angle frame, 30 elastic buffer material, 31 specimen, 32 horizontal thin tray, 33 monitoring camera C, 34 connecting sleeve, 35 telescopic end C, 36 electric control telescopic rod C, 40 servo motor D, 42 motor shaft D, 43 PLC controller, 44 monitoring camera D, 45 micro pressure sensor, 46 servo motor C, 48 hanging ring, 49 groove. Detailed implementation manner

[0021] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "inner", "outer", "upper", "lower", "front", "rear", etc. is based on the positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0022] The following is through the attached Figure 1 To the attached Figure 7An embodiment of the present invention is introduced. The doorway-type frame 8 is fixed on the horizontal ground by anchor bolts. On both sides of the ground inside the doorway-type frame 8, servo motors D40 with vertical axes are respectively fixed by anchor bolts. A vertical lead screw 12 is flange-connected to the motor shaft D42 of the servo motor D40. A nut 13 is screwed on each of the two vertical lead screws 12 with the same height. A horizontal connecting plate 14 is welded between the two nuts 13. At the top of the two vertical lead screws 12, there are installed angular contact bearings 11, and the outer rings of the angular contact bearings 11 are embedded in the top plate 9 of the doorway-type frame 8. On one side of the center of the bottom surface of the horizontal connecting plate 14, an electric control telescopic rod B16 is fixed by bolts. The end of the telescopic end B17 of the electric control telescopic rod B16 is fixed with a U-shaped frame 18. On the outside of the U-shaped frame 18, a servo motor C46 is fixed by bolts. The motor shaft C20 of the servo motor C46 passes through the U-shaped frame 18 and is fixedly connected with the horizontal concave wheel 19 inside the U-shaped frame 18 by key connection. When the electric control telescopic rod B16 works, the concave wheel 19 can reach the center of the horizontal connecting plate 14 or move away from the center. A flexible thin rope 23 is wound around the concave wheel 19. The outer end of the flexible thin rope 23 is connected to the hanging ring 48 at the center of the top of the drop hammer 22. When the electric control telescopic rod B16 works to make the vertical flexible thin rope 23 suspending the drop hammer 22 on the concave wheel 19 coincide with the center of the horizontal connecting plate 14, the electric control telescopic rod B16 stops working. The servo motor C46 outside the U-shaped frame 18 works to make the concave wheel 19 rotate. When the drop hammer 22 rises to the topmost position, the servo motor C46 stops working, and a pair of parallel claws 21 clamp the drop hammer 22. The pair of parallel claws 21 are installed on the electric claw device 24, and the electric claw device 24 is fixed on the bottom surface of the horizontal connecting plate 14 by bolts. The servo motor C46 outside the U-shaped frame 18 works in the reverse direction to make the concave wheel 19 rotate synchronously in the reverse direction. At the same time, the electric control telescopic rod B16 works to make the telescopic end B17 shorten and drive the concave wheel 19 away from the drop hammer 22. At this time, a V-shaped drooping section appears in the flexible thin rope 23 connecting the concave wheel 19 and the hanging ring 48 at the top of the drop hammer 22, and the unfolded length of the V-shaped drooping section of the flexible thin rope 23 is greater than the falling height of the drop hammer 22, so that the flexible thin rope 23 does not affect the falling of the drop hammer 22. The above-mentioned servo motor D40, electric control telescopic rod B16, servo motor C46, and electric claw device 24 are all connected to the PLC controller 43.

[0023] The foundation bolts fix the workbench frame 3 on the ground between the two servo motors D40. The workbench frame 3 is welded by profiled steel with a wall thickness greater than 4 mm. There is a square hole of 610 mm × 610 mm in the center on the workbench frame 3. A pair of right-angle frames 29 are placed on the upper edge of the square hole. The inner right-angle sides of the right-angle frames 29 are provided with grooves 49, and elastic buffer materials 30 are installed in the grooves 49. When the pair of right-angle frames 29 are closed and aligned, they can form a square clamping frame, which is aligned with the square hole in the center of the workbench frame 3. The size of the square formed by the grooves 49 after the pair of right-angle frames 29 are closed and aligned is also 610 mm × 610 mm, which is the same as the size of the specimen 31. Connecting blocks 28 are installed outward at the right angles of each right-angle frame 29, and the connecting blocks 28 are fixed on the telescopic ends A27 of the electric control telescopic rods A6. The electric control telescopic rods A6 are fixed on the workbench frame 3 by bolts. The axial centerlines of the two electric control telescopic rods A6, the diagonal of the square hole on the workbench frame 3, and the diagonal of the square clamping frame formed by the pair of right-angle frames 29 being closed are all on the same straight line. When the two electric control telescopic rods A6 work to shorten the telescopic ends A27, the specimen 31 can be loaded or unloaded. When the two electric control telescopic rods A6 work to extend the telescopic ends A27, the specimen 31 can be fixed and clamped. Miniature pressure sensors 45 are provided at the end faces of any right-angle sides of each right-angle frame 29. The electric control wires of the above-mentioned electric control telescopic rods A6 and the miniature pressure sensors 45 are all connected to the PLC controller 43. When the two right-angle frames 29 are closed and aligned, when the miniature pressure sensor 45 on one right-angle frame 29 is pressed into the right-angle side of the other right-angle frame 29, the PLC controller 43 controls the electric control telescopic rod A6 to stop working.

[0024] A collection tray 1 is provided on the ground below the square hole to receive the fragmented specimen 31. The anti-secondary impact device consists of a horizontal thin tray 32 provided above the square clamping frame formed by two right-angle frames 29. One side of the horizontal thin tray 32 is fixed to the connecting sleeve 34, and the connecting sleeve 34 is fixed to the telescopic end C35 of the electric control telescopic rod C36. The electric control telescopic rod C36 is fixed to the workbench frame 3 by bolts, and the electric control telescopic rod C36 is connected to the PLC controller 43. When the drop hammer 22 falls freely, it is required to strike within a range of 60 mm in diameter centered on the horizontally placed specimen 31. Depending on the anti-impact grade of the specimen 31, the falling height and the number of impacts of the drop hammer 22 will be different. The falling height is generally between 580 and 3080 mm, and the number of impacts is 3 to 30 times. If the drop hammer 22 does not penetrate the specimen 31, the drop hammer 22 will quickly rebound to a certain height after contacting the specimen 31. At this time, the electric control telescopic rod C36 connecting the horizontal thin tray 32 works, and the telescopic end C35 quickly extends, causing the horizontal thin tray 32 to move to the center position of the specimen 31 to wait for the drop hammer 22 that rebounds and then falls, thus preventing the drop hammer 22 from secondarily impacting the specimen 31 due to the rebound. After the drop hammer 22 is lifted and separated from the horizontal thin tray 32, the electric control telescopic rod C36 works to shorten the telescopic end C35, and the horizontal thin tray 32 returns to its original position.

[0025] A monitoring camera D44 is installed below the center of the horizontal connecting plate 14. The monitoring camera D44 is used to monitor the horizontal movement of the concave wheel 19, the vertical movement of the drop hammer 22, the actions of the parallel claws 21, etc. At any right angle of the square hole on the workbench frame 3, a monitoring camera C33 is provided. The monitoring camera C33 is used to monitor the rebound height of the specimen 31 after being struck by the drop hammer 22, so that the PLC controller 43 can correctly control the operation of the electric control telescopic rod C36 connecting the horizontal thin tray 32. Above the square frame formed by two right-angle frames 29, two monitoring cameras B26 are provided. The monitoring cameras B26 are respectively fixed on the support rods 25, and the support rods 25 are fixed to the upper surface of the workbench frame 3 by bolts. The camera B is used to monitor the situation of the upper surface of the specimen 31 being struck and the actions of the horizontal thin tray 32, etc. Below the specimen 31 and above the collection tray 1, two monitoring cameras A2 are provided. The monitoring cameras A2 are fixed on the connecting rods, and the connecting rods are fixed to the vertical surface of the workbench frame 3 by bolts. The monitoring cameras A2 are used to monitor the changes in the lower surface of the specimen 31. The above monitoring cameras A2, monitoring cameras B26, monitoring cameras C33, and monitoring cameras D44 are all connected to the PLC controller 43, enabling the PLC controller 43 to analyze the images and control the movement of each connected component.

[0026] When using the device, the tester puts the sample 31 into the groove 49 of the right-angle frame 29 and presses the test start button in the PLC controller 43. The components of the electric control devices connected to the PLC controller 43 enter the working state, the electric control telescopic rod A6 works to extend the telescopic end A27, the two right-angle frames 29 move toward each other, the two right-angle frames 29 are closed into a frame and clamp the sample 31. At the same time, the micro pressure sensor 45 at the end face of a right-angle side of the right-angle frame 29 is pressed into the right-angle side of the other right-angle frame 29, and the electric control telescopic rod A6 stops working. Then the two servo motors D40 work to make the horizontal connecting plate 14 between the two screw nuts 13 reach the specified height, that is, the drop hammer 22 is at the required height, the electric clamping claw device 24 makes its parallel claws 21 open, the drop hammer 22 falls freely, and the drop hammer 22 hits the center of the sample 31 within 60mm diameter. If the drop hammer 22 does not penetrate the sample 31, the drop hammer 22 bounces up, and the electric control telescopic rod C36 connected to the horizontal thin tray 32 works to move the horizontal thin tray 32 to the center of the sample 31 and stop. After the drop hammer 22 bounces to the highest point, it falls into the horizontal thin tray 32, and the U-shaped frame 18 The servo motor C46 on the outside works to make the concave wheel 19 wrap around the flexible string 23. The flexible string 23 pulls the ring 48 at the center of the top surface of the drop hammer 22, so that the drop hammer 22 rises to the position between the two parallel claws 21 and stops. The electric clamping device 24 works to make the two parallel claws 21 clamp the drop hammer 22. The electric telescopic rod B16 works to make the concave wheel 19 move away from the drop hammer 22. At the same time, the servo motor C46 on the outside of the U-shaped frame 18 works to make the flexible string 23 droop. When the drooping and unfolding length of the flexible string 23 is greater than the drop height of the drop hammer 22, the servo motor C46 stops working. The electric clamping device 24 works to make the two parallel claws 21 release the drop hammer 22. The drop hammer 22 hits the center of the sample 31 within a diameter of 60 mm. The electric telescopic rod B16 works to move the drooping flexible string 23 on the concave wheel 19 to the center position between the two parallel claws 21. If the falling hammer 22 fails to penetrate the sample 31, the falling hammer 22 bounces up, and the electric-controlled telescopic rod C36 connected to the horizontal thin tray 32 operates to move the horizontal thin tray 32 to the center of the sample 31 and stop. After the falling hammer 22 bounces to the highest point, it falls into the horizontal thin tray 32, and the servo motor C46 operates to make the concave wheel 19 wrap around the flexible thin rope 23 to make the falling hammer 22 rise again. This action is repeated until the falling hammer 22 hits the specified number of times.

[0027] The PLC controller 43 makes a conclusion on whether the surface change of the sample 31 meets the anti-smashing performance level according to the two monitoring cameras B26 above the sample 31 and the two monitoring cameras A2 below the sample 31. After the sample 31 is installed, the test process including the judgment is automatically completed, which improves the test quality and efficiency and realizes the automation of detection.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; those of ordinary skill in the art should understand that they can still modify the technical solutions described in the above embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An automatic test device for the anti-smashing performance of a transparent material, comprising a workbench frame (3) for placing a specimen (31), characterized in that: A square hole is provided at the center of the workbench frame (3). The size of the square hole is the same as that of the specimen (31). A pair of right-angle frames (29) are spliced to form a clamping frame and placed above the square hole. An inward groove (49) is provided on the inner side surface of the right-angle frame (29). After the grooves (49) of the two right-angle frames (29) are spliced, the size is the same as that of the specimen (31). A connecting block (28) is fixedly arranged outward at each right angle of the right-angle frame (29). The connecting block (28) is fixed on the telescopic end A (27) of the electric control telescopic rod A (6). The electric control telescopic rod A (6) is fixed on the workbench frame (3). The electric control telescopic rod A (6) is connected to the PLC controller (43). The axis centerlines of the two electric control telescopic rods A (6) coincide with the diagonal line of the clamping frame. A micro pressure sensor (45) is installed at the splicing position of the right-angle frames (29). The micro pressure sensor (45) is connected to the PLC controller (43); An electric control telescopic rod C (36) is fixed on the workbench frame (3). A horizontal thin tray (32) is fixed on the telescopic end C (35) of the electric control telescopic rod C (36) through a connecting sleeve (34). The horizontal thin tray (32) is located above the specimen (31). The electric control telescopic rod C (36) is connected to the PLC controller (43); A door-shaped frame (8) is fixed on the outer side of the workbench frame (3). A servo motor D (40) is respectively fixed on the left and right sides inside the door-shaped frame (8). The servo motor D (40) is connected to the PLC controller (43). The motor shaft D (42) of the servo motor D (40) is connected upward to a vertical lead screw (12) through a flange. The top end of the vertical lead screw (12) is fixed on the top plate (9) of the door-shaped frame (8) through a radial thrust bearing (11). A nut (13) is screwed on the vertical lead screw (12). A horizontal connecting plate (14) is welded between the two nuts (13). An electric control telescopic rod B (16) is fixedly arranged downward on the bottom surface of the left end of the horizontal connecting plate (14). The electric control telescopic rod B (16) is connected to the PLC controller (43). A U-shaped frame (18) is fixed at the end of the horizontal telescopic end B (17) of the electric control telescopic rod B (16). A servo motor C (46) is fixed on the outer side of the U-shaped frame (18). The servo motor C (46) is connected to the PLC controller (43). The motor shaft C (20) of the servo motor C (46) passes through the U-shaped frame (18) and is key-connected to a concave wheel (19) inside the U-shaped frame (18). A flexible thin rope (23) is wound around the concave wheel (19). The outer rope end of the flexible thin rope (23) is connected to a hanging ring (48) of a drop hammer (22); An electric claw device (24) is fixed on the bottom surface of the horizontal connecting plate (14) where the drop hammer (22) faces right. The electric claw device (24) is connected to the PLC controller (43);A monitoring camera D (44) is installed below the center of the horizontal connecting plate (14). A monitoring camera C (33) is installed at any right angle of the square hole corresponding to the workbench frame (3). Above the right-angle frame (29) on the workbench frame (3), two monitoring cameras B (26) are symmetrically installed. Below the specimen (31), two monitoring cameras A (2) are symmetrically installed. The monitoring cameras A (2), B (26), C (33), and D (44) are all connected to the PLC controller (43). An elastic buffer material (30) is installed in the groove (49). A collection tray (1) is placed below the square hole.

2. The automatic test device for the anti-smashing performance of the transparent material according to claim 1, wherein: The workbench frame (3) is welded by steel sections with a wall thickness greater than 4 mm.

3. The automatic test device for the anti-smashing performance of the transparent material according to claim 1, characterized in that: The monitoring camera A (2) is fixed on the connecting rod, and the connecting rod is fixed on the workbench frame (3) by bolts.

4. The automatic test device for the anti-smashing performance of the transparent material according to claim 1, wherein: The monitoring camera B (26) is fixed on the support rod (25), and the support rod (25) is fixed on the workbench frame (3) by bolts.

5. The automatic test device for the anti-smashing performance of the transparent material according to claim 1, wherein: The specimen (31) is a square with a size of 610 mm × 610 mm.

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