A falling sphere testing device

Abstract

The application discloses a falling ball test device, which comprises a base, a first limiting component and a second limiting component. The first limiting component is arranged on the base to define a first accommodating space on one side of the base. The first accommodating space is provided with a first accommodating opening on the side away from the base. The second limiting component is arranged on the first limiting component to define a second accommodating space on one side of the first limiting component, which is in communication with the first accommodating space. The second accommodating space is provided with a second accommodating opening on the side away from the base. The size of the second accommodating opening is larger than that of the first accommodating opening, so as to form a bearing part on the inner side of the second limiting component. The first limiting component is adjustably arranged on the base, so that the size of the first accommodating space is adjustable. Alternatively, the second limiting component is adjustably arranged on the first limiting component, so that the size of the second accommodating space is adjustable. The falling ball test device disclosed by the application has a wide application range.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a ball-dropping test device. Background Technology

[0002] In the current display industry, display devices consist of a display panel, a cover plate assembly, and then are assembled with a bezel to form various display products available on the market. Modern display devices not only serve a display function but also have touch functionality. The display interface is susceptible to damage from user fingers, accidental drops, or impacts with hard objects. Therefore, to better protect the display panel, standards for the rigidity and strength of the cover plate assembly are typically established, and necessary tests are conducted to control the critical performance characteristics of the display device.

[0003] A common industry test for display device performance is the drop test, which involves dropping a steel ball of a certain mass from different heights onto the display device, typically at 5 or 9 o'clock positions. If the display shows no abnormalities and the cover plate remains unbroken after the test, it passes. This test requires the display device to be fixed in place to accurately reflect its performance. However, with the diverse shapes and sizes of modern displays, each product requires a dedicated fixture, resulting in a long manufacturing cycle, high fixture costs, and potential accuracy issues that can affect the drop test results.

[0004] There is an urgent need to improve the existing ball drop test device to solve the problems of limited application range, long production cycle, and high price. Summary of the Invention

[0005] This application mainly provides a ball-dropping test device, which has a simple structure and a wide range of applications.

[0006] To solve the above-mentioned technical problems, the technical solution adopted in this application is as follows: a ball-dropping test device is provided, which includes a base, a first limiting component, and a second limiting component. The first limiting component is disposed on the base to define a first accommodating space on one side of the base, and the first accommodating space has a first accommodating opening on the side opposite to the base. The second limiting component is disposed on the first limiting component to define a second accommodating space communicating with the first accommodating space on one side of the first limiting component. The second accommodating space has a second accommodating opening on the side opposite to the base, and the size of the second accommodating opening is larger than the size of the first accommodating opening, so as to form a bearing portion inside the second limiting component. The first limiting component is adjustablely disposed on the base so that the size of the first accommodating space is adjustable, and / or the second limiting component is adjustablely disposed on the first limiting component so that the size of the second accommodating space is adjustable.

[0007] The first limiting component includes multiple first support plates, which are adjustablely positioned on the base and surround to form a first accommodating space.

[0008] The first accommodating space has a larger orthographic projection on the base than the display panel has on the base. When the first accommodating space is used to place the display panel, the side of the first support plate does not directly contact the display panel.

[0009] The second limiting component includes multiple second support plates, which are adjustablely positioned on multiple first support plates and surround to form a second accommodating space.

[0010] In this configuration, multiple first support plates are provided in a one-to-one correspondence with multiple second support plates, with the second support plates being set on the corresponding first support plates.

[0011] Preferably, both the first support plate and the second support plate are cuboid structures, and there are four of each type.

[0012] Preferably, both the first support plate and the second support plate are L-shaped structures, and there are 2 or 4 of each type.

[0013] The ball drop test device also includes a drive fixing component, which is located on the side of the second support plate away from the first support plate. The output shaft of the drive fixing component points to the base and abuts against the second support plate to fix the second support plate and the first support plate on the base.

[0014] Preferably, the driving and fixing component is a pneumatic cylinder.

[0015] The first support plate has a first protrusion on one of its surface facing the base and the base has a first groove on the other of its surface facing the first support plate. The length of the first groove is greater than the length of the first protrusion, so that the first protrusion is adjustablely positioned within the first groove.

[0016] At least one of the surfaces of the first support plate that contact the base and the surfaces of the base that contact the first support plate is coated with a damping material.

[0017] In this configuration, one of the surfaces of the second support plate facing the first support plate and the first support plate facing the second support plate is provided with a second protrusion, and the other is provided with a second groove for receiving the second protrusion. The length of the second groove is greater than the length of the second protrusion, so that the second protrusion is adjustablely positioned within the second groove.

[0018] At least one of the surfaces of the second support plate that contact the first support plate and the surfaces of the first support plate that contact the second support plate is coated with a damping material.

[0019] The first and second support plates are made of bakelite.

[0020] The thickness of the second support plate is less than that of the first support plate.

[0021] The mounting surface of the base is marked with length graduations in both the first and second directions, with the first direction being perpendicular to the second direction.

[0022] The beneficial effects of this application are as follows: In the solution of this application, the first limiting component is adjustablely positioned on the base and / or the second limiting component is adjustablely positioned on the first limiting component. When the first limiting component is adjustablely positioned on the base, the drop ball testing device can perform drop ball tests on display panels of various sizes because the size of the first accommodating space is adjustable. When the second limiting component is adjustablely positioned on the first limiting component, the drop ball testing device can perform drop ball tests on cover plate assemblies of various sizes because the size of the second accommodating space is adjustable. Therefore, the drop ball testing device of this application has a wide range of applications. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0024] Figure 1 This is an exploded view of one embodiment of the ball-dropping test device in operation according to this application;

[0025] Figure 2 for Figure 1 Top view of the falling ball testing device during operation;

[0026] Figure 3 for Figure 1 Side view of the falling ball testing device during operation;

[0027] Figure 4 This is a schematic diagram showing the relative positions of the display panel and the first support plate in this application;

[0028] Figure 5 This is a schematic diagram of one embodiment of the first support plate and the second support plate in this application;

[0029] Figure 6 This is a schematic diagram of another embodiment of the first support plate and the second support plate in this application;

[0030] Figure 7This is a schematic diagram of the structure of one embodiment of the first protrusion in this application;

[0031] 1 Display device; 11 Display panel; 13 Cover plate assembly; 2 Base; 21 Mounting surface; 3 First limiting component; 31 First support plate; 32 Side; 35 First receiving opening; 4 Second limiting component; 41 Second support plate; 44 Bearing part; 45 Second receiving opening; 5 Drive fixing component; 51 Pneumatic cylinder; 33 First groove; 34 First protrusion; 42 Second groove; 43 Second protrusion; X first direction; Y second direction. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0034] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0035] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0036] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0037] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0038] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" 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 embodiments of this application and simplifying the description, and are not intended to 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, they should not be construed as limitations on the embodiments of this application.

[0039] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0040] Please see Figure 1 , Figure 2 and Figure 3This application discloses a ball-dropping test device, which includes a base 2, a first limiting component 3, and a second limiting component 4. The first limiting component 3 is disposed on the base 2 to define a first accommodating space on one side of the base 2. The first accommodating space has a first accommodating opening 35 on the side opposite to the base 2. In one embodiment, the first accommodating space is used to accommodate a display panel 11. The second limiting component 4 is disposed on the first limiting component 3 to define a second accommodating space communicating with the first accommodating space on one side of the first limiting component 3. The second accommodating space has a second accommodating opening 45 on the side opposite to the base 2. The size of the second accommodating opening 45 is larger than that of the first limiting component 3. The size of the accommodating opening 35 is such that a supporting portion 44 is formed inside the second limiting component 4; in one embodiment, the second accommodating space is used to accommodate the cover plate assembly 13 disposed on the display panel 11. When the cover plate assembly 13 is located in the second accommodating space, the cover plate assembly 13 is exposed away from the surface of the base 2, and the supporting portion 44 can provide better support and limiting effect for the cover plate assembly 13; wherein, the first limiting component 3 is adjustablely disposed on the base 2 so that the size of the first accommodating space is adjustable, and / or, the second limiting component 4 is adjustablely disposed on the first limiting component 3 so that the size of the second accommodating space is adjustable.

[0041] Specifically, during the ball drop test, the display panel 11 is located in the first accommodating space, and the cover plate assembly 13 on the display panel 11 is located in the second accommodating space. At this time, the cover plate assembly 13 is exposed away from the surface of the display panel 11, and its side is supported and limited by a bearing portion, allowing the cover plate assembly 13 to be suspended in mid-air. This allows the ball to undergo free fall at different heights and strike the cover plate assembly 13, and the surface of the cover plate assembly 13 or the display panel 11 is observed to see if there is any breakage. In one embodiment, the first limiting component 3 is adjustablely positioned on the base 2, so that the size of the first accommodating space is adjustable. By adjusting the position of the first limiting component 3 on the base 2, the size of the first accommodating space enclosed by the first limiting component 3 is adjustable. In one embodiment, the second limiting component 4 is adjustablely positioned on the first limiting component 3, so that the size of the second accommodating space is adjustable. By adjusting the position of the second limiting component 4 on the first limiting component 3, the size of the second accommodating space enclosed by the second limiting component 4 is adjustable. In one embodiment, a first limiting component 3 is arbitrarily disposed on a base 2, and a second limiting component 4 is arbitrarily disposed on a first limiting component 3, such that the size of both the first accommodating space and the second accommodating space can be adjusted.

[0042] As can be seen from the above, through the application of the first limiting component 3 and the second limiting component 4, the ball drop test fixture in this application can be applied to display panels 11 and cover plate assemblies 13 of various sizes, and has the advantages of wide applicability and simple adjustment.

[0043] In one embodiment, the first limiting component 3 includes a plurality of first support plates 31, which are adjustablely positioned on the base 2 and enclose a first accommodating space. Specifically, the first support plates 31 are not fixedly connected to the base 2, allowing the positions of the plurality of first support plates 31 relative to the base 2 to be adjusted. In one embodiment, by moving the position of at least one first support plate 31 or by moving the position of the base 2, some of the first support plates 31 can move along a first direction X, and some of the first support plates 31 can move along a second direction Y. The size of the first accommodating space can be adjusted by moving the first support plates 31, so that the first accommodating space can be used to accommodate display panels 11 of various sizes.

[0044] Please see Figure 4 In this embodiment, the orthographic projection of the first accommodating space on the base 2 is larger than the orthographic projection of the display panel 11 on the base 2. Therefore, when the display panel 11 is located in the first accommodating space, the side 32 of the first support plate 31 does not directly contact the display panel 11, and there is a certain gap. Specifically, when the display panel 11 is assembled with the frame, there is usually a certain gap between the display panel 11 and the frame around its perimeter. Therefore, in order to simulate the actual assembly situation and make the ball drop test more realistic, a certain gap is set between the display panel 11 and the first support plate 31 when the display panel 11 is located in the first accommodating space. This gap can be set according to the actual situation, for example, 0.2mm.

[0045] To simulate actual assembly conditions and make the drop ball test more realistic, the gap between the side 32 of the first support plate 31 and the display panel 11 is the same as the gap between the display panel 11 and the frame during assembly, according to assembly requirements. By designing the first accommodating space to have a larger orthographic projection on the base 2 than the display panel 11, the first accommodating space and the side 32 of the first support plate 31 effectively simulate the actual assembly environment for the display panel 11. Therefore, when the drop ball testing device of this application is used to perform a drop ball test on the display device 1, the test results are more accurate.

[0046] Of course, in other embodiments, the orthographic projection of the first accommodating space on the base 2 can also be equal to the orthographic projection of the display panel 11 on the base 2, so that when the display panel 11 is located in the first accommodating space, at least a portion of the side of the display panel 11 is in direct contact with the first support plate 31, so that the first support plate 31 plays the role of fixing the display panel 11.

[0047] Continue reading Figure 1 and Figure 2In this embodiment, the second limiting component 4 includes a plurality of second support plates 41, which are adjustablely positioned on a plurality of first support plates 31 and enclose a second accommodating space. Specifically, the second support plates 41 are not fixedly connected to the first support plates 31, allowing the positions of the plurality of second support plates 41 relative to the first support plates 31 to be adjusted. By moving the position of at least one second support plate 41, the size of the second accommodating space changes, so that the second accommodating space can accommodate cover plate components 13 of different sizes in different application scenarios.

[0048] In other embodiments, the second support plate 41 and the first support plate 31 may be fixedly connected, but the first support plate 31 may be adjusted on the base 2. Adjusting the position of the first support plate 31 causes the first support plate 31 to drive the second support plate 41 to move. By moving the position of at least one first support plate 31, the size of the first accommodating space and the second accommodating space can be changed simultaneously. Thus, in different application scenarios, the second accommodating space and the first accommodating space can accommodate the cover plate assembly 13 and the display panel 11 with the same length-to-width ratio.

[0049] Continue reading Figure 1 and Figure 2 In this embodiment, multiple first support plates 31 are correspondingly arranged with multiple second support plates 41, and the second support plates 41 are disposed on the corresponding first support plates 31. Specifically, the multiple first support plates 31 and multiple second support plates 41 are arranged in a one-to-one correspondence, such that the number of first support plates 31 and second support plates 41 is the same, so that the second support plates 41 are superimposed on the corresponding first support plates 31. When performing a ball drop test, the position of the first support plates 31 is first adjusted, then the second support plates 41 are superimposed on the corresponding first support plates 31, and the position of the second support plates 41 is adjusted, and then the ball drop test can be performed.

[0050] In other embodiments, the first support plate 31 and the second support plate 41 may not be in a one-to-one correspondence. For example, two second support plates 41 may be placed on one first support plate 31 at the same time, or one second support plate 41 may be placed on two first support plates 31 at the same time.

[0051] Continue reading Figure 1 and Figure 2 In this embodiment, both the first support plate 31 and the second support plate 41 are cuboid structures, and there are four of each.

[0052] Specifically, the first support plate 31 and the second support plate 41 with cuboid structures are selected. On the one hand, the first support plate 31 and the second support plate 41 are easy to manufacture. On the other hand, considering that the display panel 11 and the cover plate assembly 13 are usually cuboid structures, the first support plate 31 and the second support plate 41 with cuboid structures can better define the first accommodating space and the second accommodating space that conform to the shape of the display panel 11 and the cover plate assembly 13.

[0053] Meanwhile, there are four first support plates 31 and four second support plates 41. During testing, the first support plates 31 and the second support plates 41 are placed around the display device 1 so that the shape of the first accommodating space and the second accommodating space is the same as the shape of the display panel 11 to be tested, which can meet the fixing requirements of the display panel 11.

[0054] Please see Figure 5 and Figure 6 In other embodiments, both the first support plate 31 and the second support plate 41 are L-shaped structures, and the number of the first support plate 31 and the second support plate 41 can be 2 or 4.

[0055] Specifically, when the first support plate 31 and the second support plate 41 are stacked, and both the first support plate 31 and the second support plate 41 are L-shaped, the component under test can be fixed by setting two first support plates 31 and two second support plates 41, with the first support plates 31 and the second support plates 41 positioned diagonally on the component under test. Alternatively, the component under test can be fixed by setting four first support plates 31 and four second support plates 41, with the first support plates 31 and the second support plates 41 positioned at the four corners of the component under test. The L-shaped design of the first support plates 31 and the second support plates 41 provides sufficient support for the display panel 11 and the cover plate at the corner positions, meeting the requirements for fixing the display panel 11 or the cover plate, thus ensuring accurate results in the drop ball test.

[0056] In summary, this application does not impose any restrictions on the structure or quantity of the first support plate 31 and the second support plate 41, and these can be set according to the actual situation.

[0057] Continue reading Figures 1 to 3The ball-dropping test device also includes a drive fixing member 5, which is disposed on the side of the second support plate 41 away from the first support plate 31. The output shaft of the drive fixing member 5 points towards the base 2 and abuts against the second support plate 41 to fix the second support plate 41 and the first support plate 31 onto the base 2. Specifically, by disposing of the drive fixing member 5 on the side of the second support plate 41 away from the first support plate 31, the output shaft of the drive fixing member 5 points towards the base 2 and abuts against the second support plate 41. Furthermore, in the ball-dropping test device of this application, the base 2, the first support plate 31, and the second support plate 41 are stacked, allowing the drive fixing member 5 to fix the corresponding second support plate 41 and the first support plate 31 onto the base 2. Different numbers of drive fixing members 5 can be provided according to the placement position and length difference of the first support plate 31 and the second support plate 41. In one embodiment, as shown... Figure 2 As shown, the second support plate 41 adjacent to the shorter side of the cover plate assembly 13 can be fixed by two drive fasteners 5, and the second support plate 41 adjacent to the longer side of the cover plate assembly 13 can be fixed by three drive fasteners 5. By selecting different numbers of drive fasteners 5 for the second support plate 41 of different lengths, the drive fasteners 5 can meet the minimum requirements for fixing the second support plate 41 and the first support plate 31 to the base 2, and the fixing effect is good.

[0058] In one embodiment, the driving fixing component 5 is a pneumatic cylinder 51. When the driving fixing component 5 is a pneumatic cylinder 51, the output force generated by the pneumatic cylinder 51 can fix the second support plate 41 and the first support plate 31 on the base 2, and the fixing effect is good. At the same time, the pneumatic cylinder 51 has the advantage of easy disassembly. When the ball drop test device needs to adjust the size of the first accommodating space or the second accommodating space according to the display panel 11 or the cover plate assembly 13 to be tested, the pneumatic cylinder 51 can be removed, the position of the first support plate 31 or the second support plate 41 can be moved, and after adjustment, the pneumatic cylinder 51 can be placed on the side of the second support plate 41 away from the first support plate 31, making the ball drop test device of this application quick and convenient to use.

[0059] In another embodiment, the ball-dropping test device of this application may omit the drive fixing member 5. Optionally, the first support plate 31, the second support plate 41, and the base 2 are fixed by magnetic attraction, using magnetic attraction instead of the pneumatic cylinder 51. Specifically, the base 2 is connected to the first support member 31 by magnetic attraction, and the second support member 41 is also connected to the first support member 31 by magnetic attraction.

[0060] In one embodiment, the first support plate 31 and the second support plate 41 are made of bakelite. Bakelite has high mechanical strength, good insulation, heat resistance, and corrosion resistance. At the same time, using bakelite will not damage the display panel 11 and cover plate assembly 13 to be tested, and can also better protect the product to be tested during the testing process.

[0061] In one embodiment, the thickness of the second support plate 41 is less than the thickness of the first support plate 31. Preferably, the thickness of the first support plate 31 can be 20mm, and the thickness of the second support plate 41 can be 5mm, to facilitate placing the display panel 11 to be tested and the cover plate assembly 13 into the corresponding receiving space. Meanwhile, the thickness of the base plate can be 35mm, and it can be made of marble or steel.

[0062] Continue reading Figure 1 The first support plate 31 has a first protrusion 34 on one of its surfaces facing the base 2 and the base 2 has a first groove 33 for receiving the first protrusion 34. In the moving direction of the first support plate 31, the length of the first groove 33 is greater than the length of the first protrusion 34, allowing the first protrusion 34 to be adjusted and positioned within the first groove 33. In the ball-dropping test device, the surfaces of the first support plate 31 and the base 2 are in contact with each other. When one of them has the first protrusion 34 and the other has the first groove 33 for receiving the first protrusion 34, the first groove 33 can accommodate the first protrusion 34, allowing them to match. Simultaneously, in the moving direction of the support plate 31, the length of the first groove 33 is greater than the length of the first protrusion 34, providing the first protrusion 34 with room to move within the first groove 33, meaning the first protrusion 34 can be adjusted and positioned within the first groove 33. When the base 2 is stationary, the position of the first support plate 31 relative to the base 2 can be adjusted, thereby changing the size of the first accommodating space. The design of the first groove 33 and the first protrusion 34 makes it easy to adjust the size of the first accommodating space.

[0063] Please see Figure 7 In one embodiment, the surface of the first support plate 31 facing the base 2 is provided with a first protrusion 34, and the surface of the base 2 facing the first support plate 31 is provided with a first groove 33 for receiving the first protrusion 34. In the second direction Y, the length of the first protrusion 34 in the first support plate 31 located on both sides is less than the length of the corresponding first groove 33, which facilitates the position adjustment of the first support plate 31 and the base 2.

[0064] In one embodiment, at least one of the surfaces of the first support plate 31 in contact with the base 2 and the base 2 in contact with the first support plate 31 is coated with a damping material. Optionally, the damping material is coated only on the surfaces of the first support plate 31 in contact with the base 2, or only on the surfaces of the base 2 in contact with the first support plate 31, or both the surfaces of the first support plate 31 in contact with the base 2 and the base 2 in contact with the first support plate 31 are coated with damping material. The damping material can increase the friction of the coated surfaces, increasing the friction between the surfaces when they come into contact with other surfaces, thereby increasing the stability of the relative position of the base 2 and the first support plate 31 when they are in contact.

[0065] In one embodiment, at least one of the first groove 33 and the first protrusion 34 is coated with a damping material. When at least one of the first groove 33 and the first protrusion 34 is coated with a damping material, the relative position of the first groove 33 and the first protrusion 34 can be maintained under the adjusted static condition, so that the size of the first accommodating space is stable, which is beneficial to improving the accuracy of the setting of the first accommodating space. At the same time, it allows the fixing of the first support plate 31 and the second support plate 41 to the base 2 to be completed by driving the fixing member 5 in this application.

[0066] One of the surfaces of the second support plate 41 facing the first support plate 31 and the first support plate 31 facing the second support plate 41 is provided with a second protrusion 43, and the other is provided with a second groove 42 to receive the second protrusion 43. The length of the second groove 42 is greater than the length of the second protrusion 43, allowing the second protrusion 43 to be adjusted and positioned within the second groove 42. In the ball-dropping test device, the surfaces of the second support plate 41 facing the first support plate 31 and the first support plate 31 facing the second support plate 41 are in contact with each other. When one of them is provided with the second protrusion 43 and the other with the second groove 42 to receive the second protrusion 43, the second groove 42 can accommodate the second protrusion 43, allowing them to match each other. Simultaneously, the length of the second groove 42 is greater than the length of the second protrusion 43, providing the second protrusion 43 with room to move within the second groove 42, meaning the second protrusion 43 can be adjusted and positioned within the second groove 42. When the first support plate 31 is stationary, the position of the second support plate 41 relative to the first support plate 31 can be adjusted, thereby changing the size of the second accommodating space. The design of the second groove 42 and the second protrusion 43 makes it easy to adjust the size of the second accommodating space.

[0067] In one embodiment, at least one of the surfaces of the second support plate 41 in contact with the first support plate 31 and the first support plate 31 in contact with the second support plate 41 is coated with a damping material. Optionally, the damping material is coated only on the surfaces of the second support plate 41 in contact with the first support plate 31, or only on the surfaces of the first support plate 31 in contact with the second support plate 41, or on both the surfaces of the second support plate 41 in contact with the first support plate 31 and the first support plate 31 in contact with the second support plate 41. The damping material can increase the friction of the coated surfaces, increasing the friction between the surfaces when they come into contact with other surfaces, thereby increasing the stability of the relative position of the second support plate 41 and the first support plate 31 when they are in contact.

[0068] Optionally, at least one of the second groove 42 and the second protrusion 43 is coated with a damping material. When at least one of the second groove 42 and the second protrusion 43 is coated with a damping material, the relative position of the second groove 42 and the second protrusion 43 can be maintained under the static condition after the second support plate 41 and the first support plate 31 are adjusted, so that the size of the second accommodating space is stable, which is beneficial to improving the accuracy of the second accommodating space setting. At the same time, it allows the first support plate 31 and the second support plate 41 to be fixed to the base 2 by means of the driving fastener 5 in this application.

[0069] In one embodiment, the mounting surface 21 of the base 2 is marked with length graduations in both the first direction X and the second direction Y, with the first direction X perpendicular to the second direction Y. Since the mounting surface 21 of the base 2 is marked with length graduations in both the first direction X and the second direction Y, and the first support plate 31 is stacked on the mounting surface 21 of the base 2, the length graduations on the base 2 in the first and second directions Y provide a reference for adjusting the first support plate 31, thereby moving the first support plate 31 to obtain the size of the first accommodating space required by the display panel 11 under test. Length graduations can also be marked at corresponding positions on the first support plate 31. Combining the length graduations on the base 2 and the first support plate 31, a basis can be provided for adjusting the position of the second support plate 41, thereby obtaining the size of the second accommodating space required by the display component under test.

[0070] By utilizing the first limiting component 3 and the second limiting component 4, the dimensions of the first accommodating space and / or the second accommodating space become adjustable. When the first limiting component 3 is adjustable, the ball drop test device of this application can be applied to display panels 11 of different sizes under the same size cover plate. When the second limiting component 4 is adjustable, the ball drop test device of this application can be applied to cover plates of different sizes under the same size display panel 11. Simultaneously, by adjusting the position of the first limiting component 3 and the display panel 11, the ball drop test device of this application can simulate the actual assembly scenario of the display panel 11 and the cover plate, which is beneficial to improving the accuracy of the ball drop test measurement results.

[0071] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A ball-dropping test device, characterized in that, include: Base; A first limiting component is disposed on the base to define a first receiving space on one side of the base, and the first receiving space has a first receiving opening on the side opposite to the base. The second limiting component is disposed on the first limiting component to define a second accommodating space communicating with the first accommodating space on one side of the first limiting component. The second accommodating space has a second accommodating opening on the side opposite to the base. The size of the second accommodating opening is larger than the size of the first accommodating opening, so as to form a supporting part inside the second limiting component. Wherein, the first limiting component is adjustablely positioned on the base so that the size of the first accommodating space is adjustable, and / or, the second limiting component is adjustablely positioned on the first limiting component so that the size of the second accommodating space is adjustable.

2. The ball-dropping test device according to claim 1, characterized in that, The first limiting component includes a plurality of first support plates, which are adjustablely positioned on the base and surround to form the first accommodating space.

3. The ball-dropping test device according to claim 2, characterized in that, The second limiting component includes a plurality of second support plates, which are adjustablely positioned on the plurality of first support plates and surround to form the second accommodating space.

4. The ball-dropping test device according to claim 3, characterized in that, The plurality of first support plates are provided in a one-to-one correspondence with the plurality of second support plates, and the second support plates are provided on the corresponding first support plates.

5. The ball-dropping test device according to claim 4, characterized in that, Both the first support plate and the second support plate are cuboid structures, and there are four of each.

6. The ball-dropping test device according to claim 4, characterized in that, Both the first support plate and the second support plate are L-shaped structures, and there are either two or four of each type.

7. The ball-dropping test device according to claim 3, characterized in that, The ball-dropping test device also includes: A drive fixing member is disposed on the side of the second support plate opposite to the first support plate. The output shaft of the drive fixing member points to the base and abuts against the second support plate to fix the second support plate and the first support plate on the base.

8. The ball-dropping test device according to claim 7, characterized in that, The drive fixing component is a pneumatic cylinder.

9. The ball-dropping test device according to claim 3, characterized in that, The thickness of the second support plate is less than the thickness of the first support plate.

10. The ball-dropping test device according to claim 9, characterized in that, The first support plate and the second support plate are made of bakelite material.

11. The ball-dropping test device according to claim 2, characterized in that, One of the surfaces of the first support plate facing the base and the surface of the base facing the first support plate is provided with a first protrusion, and the other is provided with a first groove for receiving the first protrusion. The length of the first groove is greater than the length of the first protrusion, so that the first protrusion is adjustablely positioned within the first groove.

12. The ball-dropping test device according to claim 11, characterized in that, At least one of the surfaces of the first support plate that contact the base and the surfaces of the base that contact the first support plate is coated with a damping material.

13. The ball-dropping test device according to claim 3, characterized in that, The second support plate has a second protrusion on one of its surfaces facing the first support plate and the first support plate has a second groove on the other of its surfaces facing the second support plate. The length of the second groove is greater than the length of the second protrusion, so that the second protrusion is adjustablely positioned within the second groove.

14. The ball-dropping test device according to claim 13, characterized in that, At least one of the surfaces of the second support plate that contact the first support plate and the surfaces of the first support plate that contact the second support plate is coated with a damping material.

15. The ball-dropping test device according to claim 1, characterized in that, The mounting surface of the base is marked with length graduations in both a first direction and a second direction, with the first direction being perpendicular to the second direction.

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