Optical cover plate simulation impact testing device

Abstract

This application discloses an optical cover plate simulation impact testing device, including a base, a support, an impact mechanism, and a triggering mechanism. The support includes a guide rod, a placement platform, and multiple fixed rods. The guide rod is vertically mounted on the top of the base, and the fixed rods support the placement platform on its periphery. The placement platform has test holes. The impact mechanism includes an impact head, an impact hammer, and an impact spring. The impact head is held at the top of the guide rod, the impact hammer is sleeved on the guide rod, and the impact spring is sleeved on the guide rod and located between the impact hammer and the base. The triggering mechanism includes a vertical plate and a blocking member. The upper part of the vertical plate has a clearance groove, and the blocking member passes through the clearance groove and is hinged within the clearance groove. The impact hammer moves downward to compress the impact spring, passes over the blocking member, and abuts against the bottom of the blocking member. The blocking member keeps the impact hammer in an initial state with a predetermined impact force. Then, the blocking member is released, and the impact hammer impacts the simulation model with the optical cover plate mounted with a precise impact force, resulting in high impact test accuracy.

Description

Technical Field

[0001] This invention relates to the field of optical cover plate testing technology, and more particularly to an optical cover plate simulation impact testing device. Background Technology

[0002] Optical cover plates are a crucial component of the screens in electronic devices such as mobile phones and tablets, and their quality directly impacts the user experience. Therefore, the performance of optical cover plates, especially their impact resistance, is a very important aspect of quality control.

[0003] Currently, most impact tests on optical cover plates involve dropping a sphere into the cover plate in free fall to simulate the impact of external materials on the cover plate in nature. This method has the problem of not being able to accurately determine the impact resistance of the optical cover plate, and it also has the problem of not being able to quickly and accurately adjust the external impact force. Summary of the Invention

[0004] One advantage of this invention is that it provides an optical cover plate simulation impact testing device, wherein the height of the blocking member in the triggering mechanism is used as the test reference position, and under the rebound action of the impact spring, the impact hammer strikes the impact head, and then the punch on the impact head impacts the optical cover plate on the simulation model, which can accurately complete the impact test of the optical cover plate.

[0005] One advantage of this invention is that it provides an optical cover plate simulation impact testing device, wherein the cooperation of the connecting rod, pressure plate, blocking member and base can form a very stable limiting effect on the impact hammer when the impact hammer abuts against the bottom of the blocking member, and the limiting structure formed by the purely mechanical connection relationship has better reliability.

[0006] One advantage of this invention is that it provides an optical cover plate simulation impact testing device, in which the impact force of the test can be flexibly and accurately adjusted by adjusting the nut and the marking sleeve, thereby making it very convenient, fast and accurate to complete the impact test under different impact forces.

[0007] One advantage of this invention is that it provides an optical cover plate simulation impact testing device, wherein the limiting structure enables the simulation model to maintain a predetermined angle relative to the placement stage, thereby simulating impact tests of the optical cover plate at different angles, and making the test more comprehensive.

[0008] To achieve at least one of the above advantages of the present invention, the present invention provides an optical cover plate simulation impact testing device, comprising:

[0009] Base;

[0010] A support frame, wherein the support frame includes a guide rod, a placement platform and a plurality of fixing rods, wherein the guide rod extends vertically and is fixedly disposed on the top of the base, wherein the plurality of fixing rods are symmetrically distributed circumferentially in the vertical direction with the guide rod as the center, the placement platform extends horizontally and is fixedly connected to the upper end of the plurality of fixing rods, and the placement platform is provided with a test hole directly opposite the guide rod.

[0011] An impact mechanism, comprising an impact head, an impact hammer, and an impact spring, wherein the impact head is held at the top of the guide rod and has a limiting seat that protrudes horizontally from the guide rod and a punch that can protrude above the placement platform through the test hole; wherein the impact hammer is slidably fitted onto the guide rod; and wherein the impact spring is fitted onto the guide rod and is located between the impact hammer and the base.

[0012] A triggering mechanism, comprising a vertical plate and a blocking member, wherein the vertical plate is fixedly mounted vertically on the top of the base on one side of the guide rod, and the upper part of the vertical plate is provided with a vertically extending clearance groove at a predetermined height position, wherein the blocking member is hinged in the clearance groove in a manner that allows it to pass through the clearance groove and rotate vertically, and the blocking member has a limiting end between the vertical plate and the guide rod. After the impact hammer moves downward to compress the impact spring, it moves further downward, passes the blocking member, and abuts against the bottom of the limiting end. The blocking member keeps the impact hammer in an initial state with a predetermined impact force. Rotating to release the blocking member, under the rebound action of the impact spring, the impact hammer moves upward along the guide rod and impacts the simulation model with an optical cover plate mounted on the placement platform through the punch.

[0013] According to one embodiment of the present invention, the impact hammer has a guide portion and a limiting portion, wherein the guide portion extends vertically and slides with the guide rod through a through hole, and the top end of the guide portion is a horizontal surface, wherein the limiting portion is located in the middle or lower part of the guide portion and extends symmetrically in the opposite direction horizontally for a predetermined length, the limiting portion cooperates with the blocking member, and the top of the limiting end of the blocking member is provided with a smooth inclined surface, so that the limiting portion can more easily pass over the blocking member from above and then abut against the bottom of the limiting end.

[0014] According to one embodiment of the present invention, the triggering mechanism is provided as one, and the blocking member cooperates with any one of the limiting portions;

[0015] A guide post is also fixedly provided between the placement plate and the base, and another limiting part is slidably fitted onto the guide post.

[0016] According to one embodiment of the present invention, the blocking member further has a connecting end opposite to the limiting end, the hinge position of the blocking member and the upright plate is closer to the limiting end, the connecting end has a U-shaped groove extending in the vertical direction, the triggering mechanism further includes a connecting rod and a pressure plate, one end of the connecting rod is inserted into the U-shaped groove and is hinged to the blocking member, the pressure plate is hinged to the side wall of the base near the middle, and the pressure plate is connected to the other end of the connecting rod by an end hinge;

[0017] The connecting rod has a predetermined length, and when the impact hammer abuts against the bottom of the limiting end, the connecting rod remains in a vertically extended state, and the bottom of the end of the pressure plate connected to the connecting rod abuts against the top surface of the base.

[0018] According to one embodiment of the present invention, the end of the pressure plate away from the connecting rod extends obliquely upward to form a pressing angle relative to the base.

[0019] According to one embodiment of the present invention, an adjusting nut capable of moving along the height direction is threadedly fitted on the guide rod, and the bottom end of the impact spring abuts against the top of the adjusting nut;

[0020] The side of the fixing rod is pre-set with impact force scale markings that extend evenly along the height direction. The fixing rod is fitted with a marking sleeve that can move along the height direction. A reference plate is provided on the side of the marking sleeve near the guide rod. The reference plate extends a predetermined distance in the horizontal direction, so that the reference plate and the adjusting nut have a predetermined overlapping area in the height direction.

[0021] According to an embodiment of the present invention, an anti-slip structure is provided between the fixing rod and the marking sleeve. The anti-slip structure includes a T-groove arranged in a circumferential array on the inner ring of the marking sleeve, a compression spring, and a T-strip that cooperates with the T-groove. The T-groove extends vertically, and the protrusion of the T-strip protrudes from the T-groove and abuts against the groove of the fixing rod. The compression spring is connected between the bottom of the T-groove and the T-strip in a compressed manner.

[0022] According to one embodiment of the present invention, the bottom of the T-slot is provided with a blind hole suitable for accommodating the compression spring.

[0023] According to one embodiment of the present invention, a limiting structure is provided on the top of the placement platform, so that the simulation model can maintain a predetermined angle relative to the placement platform.

[0024] According to one embodiment of the present invention, the limiting structure is implemented as two limiting plates symmetrically arranged with the test hole as the center, or as a pad and a limiting block, wherein the pad and the limiting block are respectively located on both sides of the test hole, wherein the pad is used to support the bottom of the simulation model, and the limiting block is used to limit the simulation model from contacting one end of the placement platform.

[0025] These and other objects, features and advantages of the present invention will become fully apparent from the following detailed description. Attached Figure Description

[0026] Figure 1 A three-dimensional structural schematic diagram of an optical cover plate simulation impact testing device according to a preferred embodiment of this application is shown.

[0027] Figure 2 A three-dimensional structural schematic diagram of the impact mechanism portion of this application is shown.

[0028] Figure 3 A three-dimensional structural schematic diagram of the triggering mechanism portion in this application is shown.

[0029] Figure 4 A three-dimensional structural schematic diagram of the sleeve portion marked in this application is shown.

[0030] Figure 5 An exploded structural diagram of the anti-slip structure portion of this application is shown.

[0031] Figure 6 A top view schematic diagram of a preferred embodiment of the optical cover plate simulation impact testing device of this application is shown.

[0032] Figure 7 A three-dimensional structural schematic diagram of the impact head in this application is shown.

[0033] Reference numerals: 10-base, 20-bracket, 201-test hole, 202-slide groove, 21-guide rod, 22-placement platform, 23-fixed rod, 24-guide post, 25-adjusting nut, 26-label sleeve, 261-reference plate, 271-T-slot, 272-compression spring, 273-T-strip, 2731-protrusion, 28-limiting plate, 281-sleeve, 291-pad, 292-limiting plate Position block, 293-Second magnetic strip, 30-Impact mechanism, 31-Impact head, 301-Through hole, 311-Limit seat, 312-Punch, 32-Impact hammer, 321-Guide part, 322-Limit part, 33-Impact spring, 40-Trigger mechanism, 41-Upright plate, 401-Avoid groove, 42-Blocking part, 421-Limit end, 422-Connecting end, 402-U-shaped groove, 43-Connecting rod, 44-Pressure plate. Detailed Implementation

[0034] The following description is intended to disclose the present invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the invention.

[0035] Those skilled in the art should understand that, in the disclosure of this specification, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting the present invention.

[0036] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0037] refer to Figures 1 to 7 An optical cover plate simulation impact testing device according to a preferred embodiment of the present invention will be described in detail below. The optical cover plate simulation impact testing device includes a base 10, a bracket 20, an impact mechanism 30, and a triggering mechanism 40. The bracket 20 includes a guide rod 21, a placement platform 22, and a plurality of fixing rods 23. The guide rod 21 extends vertically and is fixedly disposed on the top of the base 10. The guide rod 21 can be directly provided with external threads at the bottom and then threadedly connected to the base 10 by means of threaded engagement. The plurality of fixing rods 23 are symmetrically distributed in the circumferential direction and vertical direction with the guide rod 21 as the center. The placement platform 22 extends horizontally and is fixedly connected to the upper end of the plurality of fixing rods 23, thereby fixing the placement platform 22 by means of the fixing rods 23. In addition, the placement platform 22 is provided with a test hole 201 directly opposite the guide rod 21.

[0038] The impact mechanism 30 includes an impact head 31, an impact hammer 32, and an impact spring 33. The impact head 31 is held at the top of the guide rod 21 and has a limiting seat 311 that protrudes horizontally from the guide rod 21 and a punch 312 that can protrude through the test hole 201 to the top of the placement platform 22. Normally, the limiting seat 311 directly abuts against the top of the guide rod 21, and in the initial state, the punch 312 is partially located inside the test hole 201 and does not protrude from the test hole 201. At the same time, the limiting seat 311 also maintains a predetermined gap with the bottom of the placement platform 22, so that the impact head 31 has space to move up and down. During the up and down movement, the punch 312 cooperates with the test hole 201 to play a guiding role. In addition, the impact hammer 32 is slidably fitted on the guide rod 21. The impact spring 33 is fitted on the guide rod 21 and is located between the impact hammer 32 and the base 10.

[0039] The triggering mechanism 40 includes a vertical plate 41 and a blocking member 42. The vertical plate 41 is fixedly mounted vertically on the top of the base 10 on one side of the guide rod 21. The upper part of the vertical plate 41 has a vertically extending clearance groove 401 at a predetermined height. The blocking member 42 is hinged within the clearance groove 401, allowing it to pass through and rotate vertically. Specifically, the blocking member 42 is located within the clearance groove 401 and is hinged to the vertical plate 41 via a pivot 421. Furthermore, the blocking member 42 has a space between the vertical plate 41 and the guide rod 21. During operation, the impact hammer 32 moves downward to compress the impact spring 33 and then moves further downward until it passes the blocking member 42 and abuts against the bottom of the limiting end 421. In this way, the impact hammer 32 can be kept in an initial state with a predetermined impact force by the blocking member 42. Then, the blocking member 42 is released by rotating up and down. Under the rebound action of the impact spring 33, the impact hammer 32 moves upward along the guide rod 21 and impacts the simulation model with the optical cover plate placed on the placement platform 22 through the punch 312, thereby completing the impact test of the optical cover plate under the predetermined impact force. Since the height of the blocking member 42 is fixed and the position of the base 10 is constant, when the impact hammer 32 at the top of the impact spring 33 is pressed down to the bottom of the blocking member 42, the impact spring 33 will obtain a fixed amount of compression deformation. This means that the simulated impact testing device has a precise impact force, which can accurately complete the impact test on the optical cover plate and accurately determine the impact resistance performance of the optical cover plate.

[0040] In one embodiment, the impact hammer 32 has a guide portion 321 and a limiting portion 322. The guide portion 321 extends vertically and slides with the guide rod 21 through a through hole 301. The top end of the guide portion 321 is a horizontal surface. The limiting portion 322 is located in the middle or lower part of the guide portion 321 and extends symmetrically in the opposite direction for a predetermined length. The limiting portion 322 cooperates with the blocking member 42. The top of the limiting end 421 of the blocking member 42 is provided with a smooth slope, so that the limiting portion 322 can more easily pass over the blocking member 42 from above and then abut against the bottom of the limiting end 421.

[0041] It is worth mentioning that the triggering mechanism 40 can be set to one or two. When the triggering mechanism 40 is set to two, the two triggering mechanisms 40 cooperate with the two limiting parts 322 respectively, so as to release the impact hammer 32 by controlling the triggering mechanisms 40 at both ends to work synchronously.

[0042] In a preferred embodiment, the triggering mechanism 40 is provided as one, and the blocking member 42 cooperates with any one of the limiting parts 322;

[0043] A guide post 24 is fixedly provided between the placement plate 22 and the base 10. Another limiting part 322 is slidably fitted onto the guide post 24, thereby playing a guiding role and ensuring that the impact hammer 32 will not shake during the falling and rising process, thus ensuring the reliability of the impact test.

[0044] In one embodiment, the blocking member 42 also has a connecting end 422 opposite to the limiting end 421. Meanwhile, the hinge position of the blocking member 42 and the upright plate 41 is closer to the limiting end 421. At the same time, the connecting end 422 has a U-shaped groove 402 that runs through the vertical direction. In addition, the triggering mechanism 40 also includes a connecting rod 43 and a pressure plate 44. The connecting rod 43 is inserted into the U-shaped groove 402 at one end and is hinged to the blocking member 42. The pressure plate 44 is hinged to the side wall of the base 10 near the middle and is connected to the other end of the connecting rod 43 by an end hinge.

[0045] It should also be noted that the connecting rod 43 has a predetermined length, and when the impact hammer 32 abuts against the bottom of the limiting end 421, the connecting rod 43 remains vertically extended, and the bottom of the end of the pressure plate 44 connected to the connecting rod 43 abuts against the top surface of the base 10. Thus, under natural conditions without force, under the action of gravity and the cooperation of the pressure plate 44 and the top surface of the base 10, the blocking member 42 will maintain a roughly horizontally extended state. It may also tilt slightly upwards or downwards at the limiting end 421, but the limiting end 421 of the blocking member 42 has a certain amount of outward extension, allowing the impact hammer 32 to abut against the bottom of the blocking member 42 after pressing down and passing it. Crucially, when the impact hammer 32 abuts against the bottom of the blocking member 42, the pressure plate 44 also abuts against the top surface of the base 10. Regardless of whether the impact hammer 32 is at the limiting end 421... Whether an upward force is applied to the limiting end 421 or an external force is applied to the limiting end 421, under the mechanical connection of the linkage structure, the base 10 can provide a sufficiently large supporting force, thereby ensuring that the blocking member 42 provides a sufficiently large blocking force to the impact hammer 32. This sufficiently large blocking force is also the key to overcoming the rebound force of the impact spring 33. Conversely, if a downward force is applied to the limiting end 421 by an external force, it is only necessary to overcome the rebound force of the impact spring 33 to make the impact hammer 32 disengage from the blocking member 421, that is, to release the impact hammer 32, so that the impact hammer 32 can move upward quickly to perform the impact test. Under the lever principle, since the pressure plate 44 is hinged to the base 10 near the middle position or near the link 43, it is only necessary to press down on the other end of the pressure plate 44 to easily overcome the rebound force of the impact spring 33 and release the impact hammer 32.

[0046] In addition, it should be emphasized that the triggering mechanism 40 achieves the blocking and release of the impact hammer 32 through the cooperation relationship between the upright plate 41, the blocking member 42, the connecting rod 43, the pressure plate 44 and the base 10. The limiting structure formed by this purely mechanical connection relationship has better reliability than electric components, thereby ensuring the stability of blocking, limiting and releasing the impact hammer 32.

[0047] More preferably, the end of the pressure plate 44 away from the connecting rod 43 extends upward at an angle to form a pressing angle relative to the base 10, so that the operator can press the pressure plate 44 downward more easily.

[0048] As a preferred embodiment, combined with Figure 4The guide rod 21 is threaded with an adjusting nut 25 that can move along the height direction. At the same time, the bottom end of the impact spring 33 abuts against the top of the adjusting nut 25, so that the initial height position of the impact spring 33 can be adjusted by rotating the adjusting nut 25. Since the position, or height, of the blocking member 42 is fixed, when the initial height position of the impact spring 33 changes, when the impact hammer 32 abuts against the bottom of the blocking member 42, the amount of compression of the impact spring 33 will change accordingly. This change has a predetermined direct proportional relationship with the height of the adjusting nut 25.

[0049] Meanwhile, the side of the fixing rod 23 is pre-set with impact force scale markings that extend uniformly along the height direction, and the fixing rod 23 is fitted with a marking sleeve 26 that can move along the height direction. The marking sleeve 26 is provided with a reference plate 261 on the side near the guide rod 21. The reference plate 261 extends a predetermined distance in the horizontal direction, so that the reference plate 261 and the adjusting nut 25 have a predetermined overlap area in the height direction. In this way, when it is necessary to adjust the magnitude of the impact force, the height of the marking sleeve 26 can be adjusted first, and the adjustment amount can be directly read through the impact force scale markings. Then, based on the relationship that the reference plate 261 and the adjusting nut 25 have a predetermined overlap area in the height direction, the adjusting nut 25 is adjusted upward so that the top surface of the adjusting nut 25 abuts against the bottom surface of the reference plate 261. The height position of the adjusting nut 25 can be directly obtained based on the impact force scale markings, and then the magnitude of the impact force can be calculated. Obviously, when there is no need to adjust the magnitude of the impact force, the magnitude of the impact force can be directly obtained through the impact force scale marks based on the mating relationship between the top surface of the adjusting nut 25 and the bottom surface of the reference plate 261, which is very convenient.

[0050] More preferably, combined with Figure 5An anti-slip structure is provided between the fixing rod 23 and the marking sleeve 26. The anti-slip structure includes a T-groove 271 arranged in a ring along the inner circle of the marking sleeve 26, a compression spring 272, and a T-strip 273 that cooperates with the T-groove 271. The T-groove 271 extends vertically, and the protrusion 2731 of the T-strip 273 protrudes from the T-groove 271 and abuts against the sliding groove 202 of the fixing rod 23. The compression spring 272... 72 is connected in a compressed manner between the bottom of the T-slot 271 and the T-bar 273. In this way, the compression spring 272 continuously provides compression force to the T-bar 273 based on its rebound performance, forcing the protrusion 2731 of the T-bar 273 to tightly abut against the fixing rod 23, preventing the marking sleeve 26 from sliding along the height direction. Additionally, the groove 202 on the fixing rod 23 corresponding to the protrusion 2731 also serves as a guide. Generally, three to six T-slots 271, T-bars 273, and compression springs 272 are implemented and evenly distributed circumferentially to balance the pressure, making the up-and-down sliding of the marking sleeve 26 smoother and more stable.

[0051] More preferably, the bottom of the T-slot 271 is provided with a blind hole suitable for accommodating the compression spring 272, making the compression spring 272 more stable.

[0052] Furthermore, considering that when electronic devices are accidentally dropped or collide with other objects, every surface, corner, or side of the electronic device may be impacted. Therefore, in the impact test of the optical cover, if the surface, corner, or side of the optical cover can be tested, then such an impact test is obviously more comprehensive and accurate. In addition, the impact positions of the optical cover listed above are only examples. Those skilled in the art can easily think of other impact positions. Here, as a preferred embodiment, the top of the placement platform 22 is provided with a limiting structure, so that the simulation model can maintain a predetermined angle relative to the placement platform 22, such as being flush with the placement platform 22, that is, directly placed horizontally on the top surface of the placement platform 22, or placed at an angle on the placement platform 22, or placed vertically on the placement platform 22, thereby simulating the impact test of the optical cover at different positions and / or different angles.

[0053] More preferably, the limiting structure is implemented as two limiting plates 28 symmetrically arranged with the test hole 201 as the center, so that the optical cover plate can be placed horizontally on the placement platform 22 or vertically on the placement platform 22. When placed vertically on the placement platform 22, the distance between the two limiting plates 28 is relatively smaller. Generally, the two limiting plates 28 are fitted with the optical cover plate with a gap, which can also limit the optical cover plate and prevent it from tipping over.

[0054] The limiting plate 28 is capable of moving horizontally on the placement platform 22, thereby changing the relative distance between the two limiting plates 28 and switching the limiting distance between horizontally and vertically placing the optical cover plate. The limiting plate 28 can be moved by designing a sleeve 281 on the placement platform 22 at the bottom of the limiting plate 28. The sleeve 281 and the placement platform 22 cooperate to limit and guide the limiting plate 28.

[0055] In addition, combined Figure 6 The limiting structure can also be implemented as a pad 291 and a limiting block 292, wherein the pad 291 and the limiting block 292 are respectively located on both sides of the test hole 201, wherein the pad 291 is used to support the bottom of the simulation model, and the limiting block 292 is used to limit the simulation model from contacting one end of the placement platform 22, thereby determining the tilt angle of the optical cover plate based on the support height of the pad 291 and the distance between the pad 291 and the limiting block 292, and then at this tilt angle, the tilted optical cover plate faces the test hole 201, and impact tests are performed at different angles and / or different positions;

[0056] In addition, the positions of the pad 291 and the limiting block 292 are also movable. The movement of the limiting block 292 can be similar to that of the limiting plate 28. The pad 291 can be moved by adsorption. For example, a first magnet is provided at the bottom of the pad 291, and a second magnetic strip 293 is attached to the center line of the top of the placement platform 22. Thus, the position of the pad 291 can be adjusted based on the magnetic adsorption effect of the first magnet and the second magnetic strip 293.

[0057] It should be noted that the terms "first" and "second" used in this invention are for descriptive purposes only and do not indicate any order. They should not be construed as indicating or implying relative importance, and can be interpreted as names.

[0058] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the invention. The advantages of the present invention have been fully and effectively realized. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments; any variations or modifications can be made to the implementation of the present invention without departing from these principles.

Claims

1. An optical cover plate simulation impact testing device, characterized in that, include: Base; A support frame, wherein the support frame includes a guide rod, a placement platform and a plurality of fixing rods, wherein the guide rod extends vertically and is fixedly disposed on the top of the base, wherein the plurality of fixing rods are symmetrically distributed circumferentially in the vertical direction with the guide rod as the center, the placement platform extends horizontally and is fixedly connected to the upper end of the plurality of fixing rods, and the placement platform is provided with a test hole directly opposite the guide rod. An impact mechanism, comprising an impact head, an impact hammer, and an impact spring, wherein the impact head is held at the top of the guide rod and has a limiting seat that protrudes horizontally from the guide rod and a punch that can protrude above the placement platform through the test hole; wherein the impact hammer is slidably fitted onto the guide rod; and wherein the impact spring is fitted onto the guide rod and is located between the impact hammer and the base. A triggering mechanism, comprising a vertical plate and a blocking member, wherein the vertical plate is fixedly mounted vertically on the top of the base on one side of the guide rod, and the upper part of the vertical plate is provided with a vertically extending clearance groove at a predetermined height position, wherein the blocking member is hinged in the clearance groove in a manner that allows it to pass through the clearance groove and rotate vertically, and the blocking member has a limiting end between the vertical plate and the guide rod. After the impact hammer moves downward to compress the impact spring, it moves further downward, passes the blocking member, and abuts against the bottom of the limiting end. The blocking member keeps the impact hammer in an initial state with a predetermined impact force. The blocking member is rotated to release the blocking member, and under the rebound action of the impact spring, the impact hammer moves upward along the guide rod and impacts the simulation model with an optical cover plate mounted on the placement platform through the punch. The blocking member also has a connecting end opposite to the limiting end. The hinge position of the blocking member and the upright plate is closer to the limiting end. The connecting end has a U-shaped groove that runs vertically through it. The triggering mechanism also includes a connecting rod and a pressure plate. One end of the connecting rod is inserted into the U-shaped groove and is hinged to the blocking member. The pressure plate is hinged to the side wall of the base near the middle, and the other end of the connecting rod is connected to the pressure plate through an end hinge. The connecting rod has a predetermined length, and when the impact hammer abuts against the bottom of the limiting end, the connecting rod remains in a vertically extended state. The bottom of the end of the pressure plate connected to the connecting rod abuts against the top surface of the base. The guide rod is threaded with an adjusting nut that can move along the height direction, and the bottom end of the impact spring abuts against the top of the adjusting nut; the side of the fixed rod is pre-set with impact force scale markings that extend evenly along the height direction, and the fixed rod is fitted with a marking sleeve that can move along the height direction. A reference plate is set on the side of the marking sleeve near the guide rod, and the reference plate extends a predetermined distance in the horizontal direction, so that the reference plate and the adjusting nut have a predetermined overlap area in the height direction.

2. The optical cover plate simulation impact testing device as described in claim 1, characterized in that, The impact hammer has a guide portion and a limiting portion. The guide portion extends vertically and slides with the guide rod through a through hole. The top end of the guide portion is a horizontal surface. The limiting portion is located in the middle or lower part of the guide portion and extends symmetrically in the opposite direction for a predetermined length. The limiting portion cooperates with the blocking member. The top of the limiting end of the blocking member is provided with a smooth slope, so that the limiting portion can more easily pass over the blocking member from above and abut against the bottom of the limiting end.

3. The optical cover plate simulation impact testing device as described in claim 2, characterized in that, The triggering mechanism is set to one, and the blocking member cooperates with any one of the limiting parts; A guide post is fixedly provided between the placement platform and the base, and another limiting part is slidably fitted onto the guide post.

4. The optical cover plate simulation impact testing device as described in claim 1, characterized in that, The end of the pressure plate away from the connecting rod extends upward at an angle, forming a pressing angle relative to the base.

5. The optical cover plate simulation impact testing device as described in claim 1, characterized in that, An anti-slip structure is provided between the fixing rod and the marking sleeve. The anti-slip structure includes a T-groove arranged in a circumferential array on the inner ring of the marking sleeve, a compression spring, and a T-strip that mates with the T-groove. The T-groove extends vertically, and the protrusion of the T-strip protrudes from the T-groove and abuts against the groove of the fixing rod. The compression spring is connected between the bottom of the T-groove and the T-strip in a compressed manner.

6. The optical cover plate simulation impact testing device as described in claim 5, characterized in that, The bottom of the T-slot is provided with a blind hole suitable for accommodating the compression spring.

7. The optical cover plate simulation impact testing device as described in claim 1, characterized in that, The top of the placement platform is provided with a limiting structure, which allows the simulation model to maintain a predetermined angle relative to the placement platform.

8. The optical cover plate simulation impact testing device as described in claim 7, characterized in that, The limiting structure is implemented as two limiting plates symmetrically arranged with the test hole as the center, or as a pad and a limiting block, wherein the pad and the limiting block are respectively located on both sides of the test hole, wherein the pad is used to support the bottom of the simulation model, and the limiting block is used to limit the simulation model from contacting one end of the placement platform.

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