Shock absorption sheet impact resistance inspection equipment

Abstract

The invention, which belongs to the technical field of brake pad inspection equipment, discloses an impact resistance inspection device for a damping pad, comprising a frame assembly, the frame assembly comprises a frame, a sliding frame is fixedly connected to the frame, a stacking frame is fixedly connected to the upper side wall of the sliding frame, and a plurality of inspection assemblies are arranged in the stacking frame. Sliding grooves are formed between the inner walls of the front side and the rear side of the sliding frame and the stacking frame, a top block is slidably connected to the interior of the sliding frame, an air cylinder is fixedly connected between the frame and the top block, the inspection assembly comprises an inspection block, sliding blocks are fixedly connected to the left side wall and the right side wall of the inspection block, and damping and silencing pieces are clamped to the inspection block. A plurality of inspection assemblies can be stored and arranged in sequence for inspection, when it is detected that a damping and silencing piece in a certain inspection assembly is damaged, the magnetic block is pushed to make the damping and silencing piece move, the damaged inspection assembly is attracted to the surface of the abutting plate through magnetic force at the moment, finally classified management in batch inspection is achieved, and the inspection efficiency is remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of brake pad inspection equipment, in particular to a shock-absorbing pad impact resistance inspection equipment. Background Art

[0002] A shock absorber is an accessory that reduces brake noise by suppressing vibration and changing the transmission path of sound waves. It is also called a brake silencer. It is usually composed of a composite of viscoelastic damping materials (such as rubber and film) and metal sheets (such as stainless steel and iron sheets) or special paper sheets. It is installed between the brake pad backing plate and the piston caliper. Its working principle is that when the brake pad and the brake disc rub and vibrate, the sound waves are transmitted from the friction lining to the steel back and then to the silencer. The change in sound wave intensity between different material layers can absorb energy and block resonance, thereby reducing noise transmission. The silencers of different models differ in shape and material. Some brands will customize and develop them for specific models, using automated processes to ensure installation accuracy and noise reduction effects. If a low-quality silencer is not installed or used, it may cause the brake noise to intensify or components to fall off.

[0003] A Chinese patent discloses a static strength testing device for automobile brakes (authorization announcement number CN117969057A), which includes a base assembly, a load system is provided inside the base assembly, a clamp assembly is fixedly connected to the load system, protective assemblies are provided on both sides of the base assembly, a cleaning assembly is provided on the upper end of the base assembly, the automobile brake lining is clamped and fixed up and down by the clamp assembly, and a shear stress load is applied under the drive of the load system. The load systems are respectively located on both sides of the base assembly and are aligned with each other, and the load application of the load system on both sides is carried out synchronously. The base assembly includes a mounting platform, columns are provided on both sides of the upper surface of the mounting platform, a telescopic shaft is provided on the upper end of the column, a connecting block is provided on the upper end of the telescopic shaft, and the connecting block is fixedly connected to the top of the column. The protective assembly includes a fixing seat, and the fixing seat is fixedly connected to the outer side surface of the mounting platform.

[0004] In the braking system, the shock absorber needs to withstand the huge pressure of the caliper or piston to ensure that the brake pad can fit tightly against the brake disc to complete braking. If the shock absorber is of poor quality, it will be dented or even broken due to long-term pressure and friction, which can easily cause safety accidents such as brake failure. Therefore, the impact resistance of the shock absorber must be strictly tested. However, in the above-mentioned patents and prior arts, it is impossible to continuously perform rapid impact tests on multiple shock absorbers, resulting in low detection efficiency and difficulty in meeting actual production needs. For this reason, we propose a shock absorber impact resistance testing device. Summary of the invention

[0005] The object of the present invention is to provide a shock-absorbing sheet impact resistance testing device to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A shock-absorbing sheet impact resistance testing device, comprising a frame assembly. The frame assembly includes a frame, on which a sliding frame is fixedly connected. On the upper side wall of the sliding frame, a stacking frame is fixedly connected. Inside the stacking frame, a plurality of testing components are arranged. Chutes are respectively dug between the front and rear inner walls of the sliding frame and the stacking frame. A top block is slidably connected inside the sliding frame, and a cylinder is fixedly connected between the frame and the top block; The testing component includes a testing block. On the left and right side walls of the testing block, sliding blocks are fixedly connected respectively. A shock-absorbing and sound-absorbing sheet is clamped on the testing block. A testing hole is dug in the testing block. Inside the testing hole, a spring plate is fixedly connected. A magnetic block and a top plate are slidably connected inside the testing hole. Two connecting rods are fixedly connected between the magnetic block and the top plate, and both of the two connecting rods penetrate through the spring plate. A spring is fixedly connected between the spring plate and the top plate. A magnetic adsorption component is fixedly connected to the stacking frame. Inside the magnetic adsorption component, a swinging component is fixedly connected. On the upper side wall of the frame, a flipping component is fixedly connected. A blanking chute is inserted on the frame.

[0007] As a further scheme of the present invention, the magnetic adsorption component includes a cross plate fixedly connected to the stacking frame. On the lower side wall of the cross plate, a fixed column is fixedly connected. Inside the fixed column, two symmetrically arranged magnetic plates are fixedly connected. A flipping square block is rotatably connected to the fixed column.

[0008] As a further scheme of the present invention, the swinging component includes a motor fixedly connected to the upper side wall of the cross plate. A rotating rod is rotatably connected inside the fixed column, and the output end of the motor is fixedly connected to the rotating rod.

[0009] As a further scheme of the present invention, on the left and right side walls of the flipping square block, rotating shafts are respectively rotatably connected. At the opposite ends of the two rotating shafts, pressing plates are fixedly connected respectively. A folding plate is fixedly connected between the two rotating shafts.

[0010] As a further scheme of the present invention, a guiding groove is dug in the folding plate. At the lower end of the rotating rod, a circular plate is fixedly connected. An eccentric guiding column is fixedly connected to the circular plate, and the guiding column is slidably connected inside the guiding groove.

[0011] As a further scheme of the present invention, the flipping component includes a rotating column fixedly connected to the lower end of the flipping square block, and the rotating column is rotatably connected to the frame.

[0012] As a further scheme of the present invention, a transmission box is fixedly connected to the upper side wall of the frame, and the transmission box is rotatably connected to the rotating column. At the lower end of the rotating column, a worm gear is fixedly connected.

[0013] As a further scheme of the present invention, a worm is rotatably connected between the front and rear inner walls of the transmission box, and the worm is meshed with the worm gear.

[0014] As a further solution of the present invention, gears are rotatably connected to both ends of the worm through one-way bearings, and two racks are slidably connected inside the transmission box, and both racks are engaged with the gears.

[0015] As a further solution of the present invention, a push block is slidably connected inside the transmission box, and a transmission column is fixedly connected between the push block and the top block.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. When the present invention is used, it can store multiple inspection components and arrange them in sequence for inspection. When it is detected that the shock-absorbing and noise-reducing sheet in a certain inspection component is damaged, the magnetic block is pushed to cause it to displace. At this time, the damaged inspection component is magnetically adsorbed on the surface of the abutment plate, and finally the classification management in batch detection is realized, significantly improving the inspection efficiency.

[0017] 2. When the present invention is used, through the swinging component, when the inspection component abuts against the abutment plate, the abutment plate can drive the inspection component to swing, so as to simulate the vibration environment of the shock-absorbing and noise-reducing sheet during actual braking, thereby improving the accuracy during inspection, and at the same time, the wear resistance of the shock-absorbing and noise-reducing sheet can also be inspected.

[0018] 3. When the present invention is used, through the cooperation of the magnetic adsorption component and the flipping component, when the top block retracts, it can drive the flipping of the flipping square block. Furthermore, after the inspection component adsorbed on the abutment plate is flipped, it will no longer fall due to the magnetic force, and finally the automatic classification of the inspection component after inspection is realized. Description of the Drawings

[0019] Figure 1 It is a three-dimensional perspective view of an impact resistance inspection device for shock-absorbing sheets; Figure 2 It is a schematic structural diagram inside the stacking frame of an impact resistance inspection device for shock-absorbing sheets; Figure 3 It is a schematic structural diagram of the chute part of an impact resistance inspection device for shock-absorbing sheets; Figure 4 It is a schematic structural diagram of the inspection component of an impact resistance inspection device for shock-absorbing sheets; Figure 5 It is a schematic structural diagram of the magnetic adsorption component and the swinging component of an impact resistance inspection device for shock-absorbing sheets; Figure 6 It is a schematic structural diagram of the flipping component of an impact resistance inspection device for shock-absorbing sheets; Figure 7 It is Figure 6 The enlarged view of A in Figure 8 It is a schematic structural diagram of the transmission column part of an impact resistance inspection device for shock-absorbing sheets; Figure 9 This is a state diagram of a shock-absorbing plate impact resistance testing device when the magnetic block is adsorbed on the impact plate.

[0020] In the figure: 1. Frame assembly; 101. Frame; 102. Sliding frame; 103. Stacking frame; 104. Slide slot; 105. Top block; 106. Cylinder; 2. Inspection assembly; 201. Inspection block; 202. Sliding block; 203. Shock-absorbing and sound-absorbing plate; 204. Inspection hole; 205. Spring plate; 206. Magnetic block; 207. Top plate; 208. Connecting rod; 209. Spring; 3. Magnetic adsorption component; 301. Horizontal plate; 302. Fixed column; 303. Magnetic plate; 304. Flipping block; 4. Swing assembly; 401. Motor; 402. Rotating rod; 403. Rotating shaft; 404. Abutment plate; 405. Folding plate; 406. Guide groove; 407. Circular plate; 408. Guide column; 5. Flip assembly; 501. Rotating column; 502. Transmission box; 503. Worm wheel; 504. Worm; 505. Gear; 506. One-way bearing; 507. Rack; 508. Push block; 509. Transmission column; 6. Feed chute. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example 1: Please refer to Figures 1 to 5, in the embodiment of the present invention, an impact resistance inspection device for a shock absorber sheet includes a frame assembly 1. The frame assembly 1 includes a frame 101. A sliding frame 102 is fixedly connected to the frame 101 through a plurality of cross bars. A stacking frame 103 is communicated and fixed to the upper side wall of the sliding frame 102. A plurality of inspection components 2 arranged in sequence from top to bottom are provided inside the stacking frame 103. Chutes 104 are formed between the inner walls of the front and rear sides of the sliding frame 102 and the stacking frame 103. The plurality of inspection components 2 are all slidably connected inside the stacking frame 103 through the chutes 104 on the stacking frame 103. A top block 105 is slidably connected inside the sliding frame 102. The designed height of the top block 105 should be lower than that of the lowermost inspection component 2. In this way, when the top block 105 moves to push the lowermost inspection component 2, the other stacked inspection components 2 above will not block the top block 105, enabling the top block 105 to smoothly push the target. Moreover, a convex block is fixedly connected to the end of the top block 105 close to the inspection component 2. The convex block is used to simulate the slave cylinder in the braking structure. A cylinder 106 is fixedly connected between the frame 101 and the top block 105. The cylinder 106 can be used to push the top block 105 to move. During the inspection process, the staff needs to adjust the impact force of the cylinder 106 according to the material of the shock absorption and sound insulation sheet 203; The inspection assembly 2 includes an inspection block 201. A groove is drilled in the inspection block 201. Sliders 202 matching the sliding grooves 104 are fixedly connected to both the left and right side walls of the inspection block 201. A shock-absorbing and sound-insulating sheet 203 is snap-connected to the inspection block 201. The shock-absorbing and sound-insulating sheet 203 can be snapped or adhered to the inspection block 201 according to different models. An inspection hole 204 with a diameter smaller than the width of the shock-absorbing and sound-insulating sheet 203 is drilled in the inspection block 201. The diameter of the convex block fixedly connected to the top block 105 is smaller than the inspection hole 204. A spring plate 205 is fixedly connected inside the inspection hole 204. A magnetic block 206 and a top plate 207 are slidably connected inside the inspection hole 204. Two connecting rods 208 are fixedly connected between the magnetic block 206 and the top plate 207. A rubber sleeve is wrapped around the surface of the connecting rod 208. The function of the rubber sleeve is to increase the resistance when the connecting rod 208 moves. In this way, when the inspection assembly 2 is quickly pushed to the bottom plate 404, the magnetic block 206 will not move due to large inertia. And both connecting rods 208 penetrate through the spring plate 205. A spring 209 is fixedly connected between the spring plate 205 and the top plate 207, so that the top plate 207 abuts against the shock-absorbing and sound-insulating sheet 203 under the thrust of the spring 209. At this time, the distance between the magnetic block 206 and the magnetic plate 303 is relatively far, and the magnetism is weak. When the shock-absorbing and sound-insulating sheet 203 is damaged due to impact caused by failed inspection, the convex block on the top block 105 will push the top plate 207, so that the top plate 207 can push the magnetic block 206 closer to the magnetic plate 303, enabling the magnetic block 206 to be adsorbed on the bottom plate 404 under the action of magnetism. A magnetic adsorption assembly 3 for magnetically adsorbing the inspection assembly 2 is fixedly connected to the stacking frame 103. A swinging assembly 4 for driving the inspection assembly 2 to simulate a vibration environment is fixedly connected inside the magnetic adsorption assembly 3. A flipping assembly 5 for driving the flipping square 304 to flip is fixedly connected to the upper side wall of the frame 101. A blanking groove 6 for collecting the inspection assembly 2 is inserted into the transmission box 502.

[0023] The magnetic adsorption assembly 3 includes a cross plate 301 fixedly connected to the side wall of the stacking frame 103. A fixed column 302 is fixedly connected to the lower side wall of the cross plate 301. Two symmetrically arranged magnetic plates 303 are fixedly connected inside the fixed column 302. And the magnetic plate 303 close to the inspection assembly 2 is magnetically attracted to the magnetic block 206. When the flipping square 304 flips 180 degrees, the magnetic block 206 adsorbed on the bottom plate 404 is magnetically repelled by the other magnetic plate 303, enabling the inspection assembly 2 to fall. The flipping square 304 is rotatably connected to the fixed column 302 through a bearing.

[0024] The swing assembly 4 includes a motor 401 fixedly connected to the upper side wall of the cross plate 301. A cylindrical cavity is drilled inside the fixed column 302, and a rotating rod 402 is rotatably connected inside the cavity through a bearing. The output end of the motor 401 is fixedly connected to the upper end of the rotating rod 402. Rotating shafts 403 are inserted and rotatably connected to the left and right side walls of the flipping square 304. One end of each of the two rotating shafts 403 facing away from each other is fixedly connected with a pressing plate 404. When the air cylinder 106 pushes the top block 105 to move quickly, the top block 105 can push the inspection block 201, so that the inspection block 201 abuts against the pressing plate 404. At the same time, the top block 105 impacts the shock-absorbing and sound-insulating sheet 203. It should be noted that when the inspection block 201 detaches from the sliding frame 102, the inspection block 201 will not immediately fall under the action of inertia. At the same time, the top block 105 has a certain speed, which increases the moving inertia of the inspection block 201 to ensure that the inspection block 201 can accurately impact on the pressing plate 404. A C-shaped folding plate 405 is fixedly connected between the two rotating shafts 403. A guiding groove 406 is drilled on the folding plate 405. A circular plate 407 is fixedly connected to the lower end of the rotating rod 402. A guiding post 408 is eccentrically fixedly connected to the circular plate 407, and the guiding post 408 penetrates and is slidably connected inside the guiding groove 406. When the motor 401 drives the rotating rod 402 to rotate, the rotating rod 402 drives the guiding post 408 to rotate through the circular plate 407. By sliding inside the guiding groove 406, the folding plate 405 can be swung continuously, and then the folding plate 405 drives the pressing plate 404 to swing continuously, and the pressing plate 404 drives the inspection block 201 to swing continuously, so as to help the inspection assembly 2 simulate the scenario when the brake pad abuts against the brake disc to generate vibration, and increase the friction between the shock-absorbing and sound-insulating sheet 203 and the convex block of the top block 105. It should be noted that during the startup process of the motor 401, the flipping square 304 can still rotate, and at the same time, it will not affect the rotation of components such as the rotating rod 402.

[0025] Embodiment 2: Please refer to Figures 6 to 9, on the basis of Embodiment 1, the flipping assembly 5 includes a rotating column 501 fixedly connected to the lower end of the flipping block 304, and the rotating column 501 is rotatably connected to the frame 101. A transmission box 502 is fixedly connected to the upper side wall of the frame 101, and the transmission box 502 is rotatably connected to the rotating column 501 through a bearing. A worm gear 503 is fixedly connected to the lower end of the rotating column 501. A worm 504 is rotatably connected between the front and rear inner walls of the transmission box 502, and the worm 504 meshes with the worm gear 503. Through the meshing of the worm gear 503 and the worm 504, the worm gear 503 cannot drive the worm 504 to rotate, while the worm 504 can drive the worm gear 503 to rotate. Through this mechanism, when the worm 504 does not rotate, the worm gear 503 and the flipping block 304 are in a self-locking state. Both ends of the worm 504 are rotatably connected to a gear 505 through a one-way bearing 506. The one-way bearing 506 can only rotate in one direction. Its principle and structure are prior arts and will not be elaborated here. Two racks 507 are slidably connected inside the transmission box 502, and both racks 507 mesh with the gear 505. When the top block 105 drives the rack 507 to move towards the flipping block 304 through the transmission column 509 and the push block 508, the rack 507 can only drive the gear 505 to rotate, and the gear 505 cannot drive the worm 504 to rotate through the one-way bearing 506. When the top block 105 returns to its original position, the rack 507 also returns to its original position. At this time, the gear 505 drives the worm 504 to rotate through the one-way bearing 506, so that the worm 504 drives the worm gear 503 to rotate, and the worm gear 503 drives the flipping block 304 to flip through the rotating column 501. It should be noted that the tooth surface length of the rack 507 is limited. Therefore, when the top block 105 moves close to the flipping block 304, the tooth surface of the rack 507 no longer contacts the gear 505. In this way, it can be prevented that after the shock-absorbing and sound-insulating sheet 203 is damaged, due to the longer moving stroke of the top block 105, the flipping angle of the flipping block 304 is excessive. Through the limitation of the tooth surface length, when the rack 507 returns to its original position, the gear 505 can rotate a fixed number of turns, and this number of turns can ensure that the flipping block 304 rotates 180 degrees. A push block 508 is slidably connected inside the transmission box 502, and a transmission column 509 is fixedly connected between the push block 508 and the top block 105.

[0026] The working principle of the present invention is: When the present invention is in use, after the staff places the inspection component 2 to be inspected inside the stacking frame 103, the air cylinder 106 is started to drive it to push the top block 105 to move. The top block 105 pushes the lowermost inspection component 2 through horizontal movement. By using the movement speed and inertia of the inspection component 2, the inspection block 201 remains suspended when it detaches from the sliding frame 102 and stably contacts the abutment plate 404 to avoid falling. At the same time, the convex block of the top block 105 impacts the shock-absorbing and sound-insulating sheet 203. Meanwhile, the motor 401 drives the rotating rod 402 to rotate. The rotating rod 402 drives the guiding column 408 to rotate through the circular plate 407. The guiding column 408 can make the folding plate 405 swing continuously through sliding inside the guiding groove 406. Then the folding plate 405 drives the abutment plate 404 to swing reciprocally, and the abutment plate 404 drives the inspection block 201 to swing continuously, so as to help the inspection component 2 simulate the scenario when the brake pad and the brake disc are in contact and generate vibration. At this time, the inspection block 201 drives the shock-absorbing and sound-insulating sheet 203 to swing continuously, making the shock-absorbing and sound-insulating sheet 203 continuously rub against the convex block of the top block 105, so as to test the wear resistance of the shock-absorbing and sound-insulating sheet 203; Due to the impact of the convex block of the top block 105 on the shock-absorbing and sound-insulating sheet 203, the shock-absorbing and sound-insulating sheet 203 with poor quality will be pierced by the convex block. At this time, the convex block will continue to move forward for a certain distance, making the convex block push the top plate 207, and then pushing the magnetic block 206 closer to the magnetic plate 303. As the distance gets closer, the magnetism gets stronger until the magnetic block 206 can be adsorbed on the abutment plate 404 under the magnetic attraction of the magnetic plate 303. When the shock-absorbing and sound-insulating sheet 203 passes the inspection, it will not be damaged by the impact. When the top block 105 resets, the inspection component 2 will directly fall and fall into the blanking chute 6; Subsequently, the air cylinder 106 pulls the top block 105 to reset, making the new inspection component 2 fall into the sliding frame 102. At the same time, in this process, when the top block 105 resets, it will also drive the rack 507 to move towards the flipping square 304 through the transmission column 509 and the push block 508. The rack 507 can only drive the gear 505 to rotate, and the gear 505 cannot drive the worm 504 to rotate through the one-way bearing 506. When the top block 105 returns, the rack 507 also returns. At this time, the gear 505 drives the worm 504 to rotate through the one-way bearing 506, making the worm 504 drive the worm gear 503 to rotate. The worm gear 503 drives the flipping square 304 to flip 180 degrees through the rotating column 501. When the flipping square 304 flips, the inspection block 201 adsorbed on the abutment plate 404 flips together. When the inspection block 201 is about to flip to the other side, because the magnetic plate 303 on the other side repels the magnetic block 206, the inspection component 2 will fall from the other side and will not fall into the blanking chute 6. In this way, it can play a role in distinguishing the inspection of the inspection component 2 and improve the inspection efficiency of the inspection component 2.

[0027] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A shock-absorbing sheet impact resistance testing device, comprising a frame assembly (1), characterized in that: The frame assembly (1) comprises a frame (101), a sliding frame (102) is fixedly connected to the frame (101), a stacking frame (103) is fixedly connected to the upper side wall of the sliding frame (102), a plurality of inspection assemblies (2) are arranged inside the stacking frame (103), sliding grooves (104) are drilled between the inner walls on the front and rear sides of the sliding frame (102) and the stacking frame (103), a top block (105) is slidably connected inside the sliding frame (102), and a cylinder (106) is fixedly connected between the frame (101) and the top block (105); The inspection assembly (2) comprises an inspection block (201), the left and right side walls of the inspection block (201) are fixedly connected to sliders (202), the inspection block (201) is clamped with a shock-absorbing and sound-absorbing plate (203), an inspection hole (204) is drilled on the inspection block (201), a spring plate (205) is fixedly connected inside the inspection hole (204), a magnetic block (206) and a top plate (207) are slidably connected inside the inspection hole (204), and the magnetic block (206) and the top plate (207) are connected to each other. Two connecting rods (208) are fixedly connected therebetween, and both connecting rods (208) are arranged to penetrate the spring plate (205); a spring (209) is fixedly connected between the spring plate (205) and the top plate (207); a magnetic adsorption component (3) is fixedly connected to the stacking frame (103); a swing component (4) is fixedly connected inside the magnetic adsorption component (3); a flip component (5) is fixedly connected to the upper side wall of the frame (101); and a material discharge chute (6) is plugged into the frame (101).

2. The shock-absorbing sheet impact resistance testing device according to claim 1, characterized in that: The magnetic adsorption component (3) comprises a horizontal plate (301) fixedly connected to the stacking frame (103); a fixing column (302) is fixedly connected to the lower side wall of the horizontal plate (301); two symmetrically arranged magnetic plates (303) are fixedly connected inside the fixing column (302); and a flip block (304) is rotatably connected to the fixing column (302).

3. The shock-absorbing sheet impact resistance testing device according to claim 2, characterized in that: The swing assembly (4) comprises a motor (401) fixedly connected to the upper side wall of the horizontal plate (301), a rotating rod (402) is rotatably connected inside the fixed column (302), and an output end of the motor (401) is fixedly connected to the rotating rod (402).

4. The shock-absorbing sheet impact resistance testing device according to claim 3, characterized in that: The left and right side walls of the flip block (304) are both rotatably connected to a rotating shaft (403), the two ends of the rotating shafts (403) that are away from each other are both fixedly connected to abutment plates (404), and a folding plate (405) is fixedly connected between the two rotating shafts (403).

5. The shock-absorbing sheet impact resistance testing device according to claim 4, characterized in that: A guide groove (406) is bored on the folding plate (405), a circular plate (407) is fixedly connected to the lower end of the rotating rod (402), a guide column (408) is eccentrically fixedly connected to the circular plate (407), and the guide column (408) is slidably connected inside the guide groove (406).

6. The shock-absorbing sheet impact resistance testing device according to claim 2, characterized in that: The flip assembly (5) comprises a rotating column (501) fixedly connected to the lower end of the flip block (304), and the rotating column (501) is rotatably connected to the frame (101).

7. The shock-absorbing sheet impact resistance testing device according to claim 6, characterized in that: A transmission box (502) is fixedly connected to the upper side wall of the frame (101), and the transmission box (502) is rotationally connected to the rotating column (501), and a worm gear (503) is fixedly connected to the lower end of the rotating column (501).

8. The shock-absorbing sheet impact resistance testing device according to claim 7, characterized in that: A worm (504) is rotatably connected between the inner walls at the front and rear sides of the transmission box (502), and the worm (504) is meshed with the worm wheel (503).

9. The shock-absorbing sheet impact resistance testing device according to claim 8, characterized in that: Both ends of the worm (504) are rotatably connected to gears (505) via one-way bearings (506); two racks (507) are slidably connected inside the transmission box (502), and the two racks (507) are meshed with the gears (505).

10. The shock-absorbing sheet impact resistance testing device according to claim 9, characterized in that: A push block (508) is slidably connected inside the transmission box (502), and a transmission column (509) is fixedly connected between the push block (508) and the top block (105).

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