Strength testing device and strength testing method

Abstract

The application discloses a strength testing device and a strength testing method. The strength testing device comprises a base, a strength testing mechanism and an adjusting mechanism. The base is used for bearing and fixing a to-be-tested element. The strength testing mechanism comprises a pressure piece. The pressure piece is used for contacting one to-be-tested area of the to-be-tested element and applying stress to the to-be-tested area. The pressure piece is located on the adjusting mechanism. The adjusting mechanism is used for adjusting the angle between the pressure piece and the base, so that the pressure piece contacts different to-be-tested areas on the to-be-tested element. The strength testing device provided in the application can test the strength of the to-be-tested element, and can be especially suitable for measuring the bending area of a display panel and measuring the failure limit of the bending area, thereby providing data support for subsequent improvement.

Description

Technical Field

[0001] This application relates to the field of strength testing, and in particular to a strength testing device and a strength testing method. Background Technology

[0002] As customers demand higher strength from products, the product's strength capacity also affects its service life. However, there is currently a lack of equipment to test the strength of the components in the product, making it impossible to obtain strength data for each component. Summary of the Invention

[0003] This application primarily provides a strength testing device and a strength testing method. By designing a device for strength testing of a component under test, the strength of the test area within the component can be tested, thereby obtaining strength data of the component and providing data support for subsequent improvements to the display panel.

[0004] To solve the above-mentioned technical problems, one technical solution adopted in this application is: to provide a strength testing device, which includes a base, a strength testing mechanism and an adjustment mechanism; wherein the base is used to support and fix the component to be tested; the strength testing mechanism includes a pressure member, which is used to contact one of the test areas of the component to be tested and apply stress to the test area; the adjustment mechanism has the pressure member located on it, and the adjustment mechanism is used to adjust the angle between the pressure member and the base so that the pressure member contacts different test areas on the component to be tested.

[0005] The adjustment mechanism is pivotally connected to the base;

[0006] Preferably, the adjustment mechanism includes a first bearing member and a support assembly, wherein a pressure member is located on the first bearing member and is slidably connected to the first bearing member; the support assembly is movably connected to the first bearing member and pivotally connected to the base.

[0007] The support assembly includes a slider and a support arm pivotally connected to the base. The slider is slidably connected to the first support member in a first direction parallel to the surface of the first support member. A second direction is perpendicular to the first direction and parallel to the plane containing the first support member, with the first support member engaged within the slider in the second direction. The slider includes a limiting portion located outside the first support member and positioned on the side of the first support member in the second direction. The support arm is pivotally connected to the base and fixedly connected to the limiting portion.

[0008] The slider includes a recess adjacent to the limiting part, and the recess is stacked with the first bearing member; the pressure member is stacked on the side of the recess away from the first bearing member, or; the pressure member is stacked on the side of the recess close to the first bearing member.

[0009] The strength testing mechanism further comprises a telescopic part and a strength testing assembly, wherein the telescopic part is connected with the pressure piece and moves with the pressure piece to generate deformation; the strength testing assembly is connected with the telescopic part and is used for testing the deformation of the telescopic part to obtain the stress value applied by the pressure piece to the testing area.

[0010] Preferably, the telescopic part and the strength testing assembly are located on the adjusting mechanism.

[0011] The strength testing assembly comprises at least one of a pointer and a pressure sensor, the pointer mechanically displays the stress value of the telescopic part, and the pressure sensor digitally displays the pressure and elastic force of the telescopic part.

[0012] Preferably, the adjusting mechanism is provided with a numerical scale for obtaining the displacement of the telescopic part when deformed.

[0013] The strength testing device can test the tested element under the condition that the tested element is powered on, the tested element is powered on through the external point screen device, and then the tested element is tested, so that whether the tested element is normal can be observed in real time.

[0014] The pressure piece has an arc-shaped end portion on the side close to the base, and the arc-shaped end portion is concave towards the side away from the base, so as to increase the fitting area with the tested element.

[0015] To solve the above technical problems, another technical solution adopted by the present application is to provide a strength testing method using the strength testing device in the above embodiment, and the testing method comprises the following steps:

[0016] Placing the tested element on the base and fixing the tested element;

[0017] Adjusting the testing angle so that the side of the pressure piece close to the base is in contact with the testing area of the tested element;

[0018] The strength testing mechanism applies pressure to the tested element, and the strength testing assembly records the pressure received by the tested element.

[0019] The step of applying pressure to the tested element by the strength testing mechanism and recording the pressure received by the tested element by the strength testing assembly comprises the following steps:

[0020] Gradually increasing the pressure applied to the tested element by the strength testing mechanism until the pressure reaches a preset value, detecting the performance of the tested element, and recording the pressure value at which the tested element fails if the tested element fails, or

[0021] Gradually increasing the pressure applied to the tested element by the strength testing mechanism, and recording the pressure value at which the tested element fails, or

[0022] The strength testing mechanism gradually increases the pressure applied to the element to be tested until the pressure reaches a preset value, and maintains the pressure for the required testing time.

[0023] The beneficial effects of the present application are: different from the prior art, in the present application, a strength testing device is provided, which comprises a base, a strength testing mechanism and an adjusting mechanism: wherein the base is used to carry and fix the element to be tested; the strength testing mechanism comprises a pressure piece, the pressure piece is used to contact one of the test areas of the element to be tested and apply stress to the test area; the adjusting mechanism, the pressure piece is located on the adjusting mechanism, the adjusting mechanism is used to adjust the angle between the pressure piece and the base, so that the pressure piece contacts different test areas on the element to be tested. By applying the strength testing device in the present application, the strength of the element to be tested is tested, and the adjusting mechanism in the present application can realize the contact between the pressure piece and the different test areas of the element to be tested, that is, the element to be tested can be measured at multiple different test areas, which is flexible to use, and the strength data of multiple test areas of the element to be tested can be obtained, which provides data support for subsequent product strength improvement. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. Among them:

[0025] Figure 1 It is a structural schematic diagram of an embodiment of the strength testing device in the present application;

[0026] Figure 2 It is an exploded view of an embodiment of the strength testing device in the present application;

[0027] Figure 3 It is a structural schematic diagram of the strength testing device in the present application for testing the element to be tested;

[0028] Figure 4 It is a structural schematic diagram of an embodiment of the slider in the present application;

[0029] Figure 5 It is a structural schematic diagram of the contact between the pressure piece and the test area in the present application;

[0030] Figure 6 It is a flowchart of an embodiment of the strength testing method in the present application;

[0031] Figure 7 It is a flowchart of an embodiment corresponding to step S3 in the present application. Figure 6 ​DETAILED DESCRIPTION

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

[0033] Please refer to Figure 1 , Figure 2 and Figure 3 , Figure 1 is a structural schematic view of an embodiment of a strength testing device of the present application; Figure 2 is an exploded view of an embodiment of a strength testing device of the present application; Figure 3 is a structural schematic view of an embodiment of a strength testing device of the present application. The present application provides a strength testing device 10, which comprises a base 1, a strength testing mechanism 2 and an adjusting mechanism; wherein the base 1 is used for carrying and fixing a to-be-tested element 4; the strength testing mechanism 2 comprises a pressure piece 21, which is used for contacting one to-be-tested area of the to-be-tested element 4 and applying stress to the to-be-tested area; the adjusting mechanism, the pressure piece 21 is located on the adjusting mechanism, and the adjusting mechanism is used for adjusting the angle between the pressure piece 21 and the base 1, so that the pressure piece 21 contacts different to-be-tested areas on the to-be-tested element 4. By using the strength testing device 10 of the present application, the strength of the to-be-tested element 4 in the display panel is tested, and the adjusting mechanism of the present application can realize the contact between the pressure piece 21 and different to-be-tested areas of the to-be-tested element 4, that is, the measurement of multiple different test areas in the to-be-tested element 4, which is flexible and can obtain the strength data of multiple to-be-tested areas of the to-be-tested element 4 of the display panel, providing data support for subsequent strength improvement of the element.

[0034] In an embodiment, the adjusting mechanism is pivotally connected with the base 1; by pivotally connecting the adjusting mechanism with the base 1, the angle between the adjusting mechanism and the base 1 is facilitated to be adjusted, and in addition, since the pressure piece 21 is arranged on the adjusting mechanism, the angle between the pressure piece 21 and the base 1 is adjusted by adjusting the angle between the adjusting mechanism and the base 1, so that the pressure piece 21 contacts different to-be-tested areas on the to-be-tested element 4.

[0035] Preferably, the adjusting mechanism comprises a first carrier 31 and a supporting assembly 32, wherein the pressure piece 21 is located on the first carrier 31, and the first carrier 31 is provided with a first sliding rail, and the pressure piece 21 is in sliding connection with the first carrier 31. The pressure piece 21 is in sliding connection with the first sliding rail. The pressure piece 21 is in sliding connection with the first carrier 31 through the first sliding rail, that is, the pressure piece 21 can slide along the first sliding rail of the first carrier 31 to the direction of the base 1. In an embodiment, the first carrier 31 is a hollow structure, and the first direction X is set as a direction parallel to the surface of the first carrier 31. The pressure piece 21 moves along the inner edge of the first carrier 31 in parallel to the first direction X. Specifically, the first sliding rail is arranged on the inner edge of the first carrier 31 in parallel to the first direction X. Of course, in the present application, the pressure piece 21 slides along the first carrier 31. Other sliding mechanisms can be arranged to realize the movement of the pressure piece 21 along the inner edge of the first carrier 31, for example, a groove is arranged on the inner edge of the first carrier 31 in parallel to the first direction X, and a sliding structure is arranged on the outer edge of the pressure piece 21 to cooperate with the groove. In an embodiment, the strength testing device 10 of the present application further comprises a motor. The motor can provide power for the movement of the pressure piece 21 and control the movement range of the pressure piece 21. In addition, the supporting assembly 32 is movably connected with the first carrier 31 and is pivotally connected with the base 1. By movably connecting the supporting assembly 32 with the first carrier 31, the angle between the first carrier 31 and the base 1 can be controlled by controlling the sliding of the supporting assembly 32 along the first carrier 31, and then the contact of the pressure piece 21 with different test areas of the test element 4 can be controlled. Further, by the design of the supporting assembly 32, the pressure piece 21 can rotate around the base 1, and the strength testing device of the present application can test different test areas of the test element 4.

[0036] The supporting assembly 32 comprises a sliding block 36 and a supporting arm 37 pivotally connected with the base 1, wherein the sliding block 36 can slide relative to the first carrier 31 in the first direction X, the second direction Y is perpendicular to the first direction X, and the second direction Y is also parallel to the plane in which the first carrier 31 is located. The first carrier 31 is clamped into the sliding block 36 in the second direction Y. The sliding block 36 comprises a limiting portion 39 located outside the first carrier 31 and arranged on the side of the first carrier 31 in the second direction Y; the supporting arm 37 is pivotally connected with the base 1 and is fixedly connected with the limiting portion 39. Further, the sliding block 36 comprises a recess 38 arranged adjacent to the limiting portion 39, and the recess 38 is stacked with the first carrier 31; the pressure piece 21 is stacked on the side of the recess 38 away from the first carrier 31, or the pressure piece 21 is stacked on the side of the recess 38 close to the first carrier 31.

[0037] In an embodiment, please refer to Figure 4 , Figure 4Fig. 1 is a structural schematic diagram of an embodiment of the slider in the application. In the second direction Y, the first carrier 31 is provided with second sliding rails 35 on opposite sides, respectively, which extend along the first direction X. The support assembly 32 includes a slider 36 and two support arms 37 pivotally connected to the base 1. In the second direction Y, the slider 36 spans the first carrier 31 and is in sliding connection with the two second sliding rails 35. The slider 36 includes two limiting portions 39 located on the outside of the first carrier 31 and arranged oppositely. The two support arms 37 are arranged oppositely and one support arm 37 is fixedly connected to one limiting portion 39. The slider 36 and the second sliding rails 35 provided on the two edges of the first carrier 31 in the second direction Y allow the slider 36 to slide along the second sliding rails 35. Meanwhile, the two ends of the slider 36 located on the outside of the first carrier 31 are provided with limiting portions 39, which are fixedly connected to one end of a support arm 37. In the application, the limiting portion 39 and the support arm 37 can be fixed in various ways, such as screw connection, bolt connection, or fixed by means of colloid bonding, welding, etc. In an embodiment, a groove is formed in the limiting portion 39, and a protrusion is provided on one side of the support arm 37, wherein the protrusion and the groove are matched with each other to achieve the fixed installation between the limiting portion 39 and the support arm 37. The groove and the protrusion can have various shapes, such as triangle, square, rectangle, trapezoid, or irregular shape, circle, ellipse, etc. The other end of the support arm 37 is movably connected to the base 1. In an embodiment, a groove is provided on the base 1 at the position connected to the support arm 37, and a corresponding protrusion is provided on the support arm 37, so that the base 1 and the support arm 37 are movably connected. Alternatively, a protrusion is provided on the base 1 at the position connected to the support arm 37, and a corresponding groove is provided on the support arm 37, so that the support arm 37 can rotate relative to the base 1. Through the connection relationship between the support arm 37 and the base 1, the slider 36, the first carrier 31 can rotate by multiple angles relative to the base 1. By adjusting the angle between the first carrier 31 and the base 1, the contact area between the strength testing device 10 and the element to be tested 4 can be changed, so that the strength testing device 10 can test different test areas of the element to be tested 4. The structure is simple and easy to implement. Meanwhile, with the movement of the support assembly 32 in the first direction X, the first carrier 31 can be brought close to and away from the base 1, so that the contact area between the pressure member 21 and the element to be tested is different, i.e., different test areas in the element to be tested 4 can be tested.

[0038] Please continue to read Figure 4The slider 36 comprises a recess 38 between the two limiting portions 39, and the recess 38 is in sliding connection with the second sliding rail 35; the second sliding rail 35 and the slider 36 are located on the outer surface of the first bearing member 31, and the pressure member 21 is stacked on the side of the recess 38 close to the first bearing member 31; the recess 38 of the slider 36 is between the two limiting portions 39, and the recess 38 is in sliding connection with the second sliding rail 35; by arranging the corresponding sliding structure (not shown in the figure) of the sliding rail in the recess 38, the recess 38 can slide along the second sliding rail 35, and by arranging the second sliding rail 35 and the slider 36 on the outer surface of the first bearing member 31, the volume of the first bearing member 31 can be reduced, the weight of the first bearing member 31 can be reduced, and the light weight of the overall device is beneficial. In an embodiment, the slider can be a combined structure, wherein the limiting portion 39 and the recess 38 are detachably connected.

[0039] Please continue to refer to Figure 3 The strength testing mechanism 2 further comprises a telescopic portion 22 and a strength testing assembly 23, wherein the telescopic portion 22 is connected with the pressure member 21, and the telescopic portion 22 moves with the pressure member 21 to generate deformation; the strength testing assembly 23 is connected with the telescopic portion 22, and is used for testing the deformation amount of the telescopic portion 22 to obtain the stress value applied by the pressure member 21 to the test area; since the telescopic portion 22 is connected with the pressure member 21, when the pressure member 21 moves in the first direction X to apply stress to the test area of the test element 4, the telescopic portion 22 moves with the pressure member 21 to generate deformation; the stress applied by the pressure member 21 to the test area can be converted into elastic force information. In an embodiment, a high-sensitivity telescopic portion 22 can be used to accurately record the stress data and reduce the stress error of the detection. The strength testing assembly 23 is connected with the telescopic portion 22, and is used for testing the deformation amount of the telescopic portion 22 to obtain the stress value applied by the pressure member 21 to the test area; since the stress applied by the pressure member 21 to the test element 4 can be reflected by the elastic force value corresponding to the deformation amount of the telescopic portion 22, the strength testing assembly 23 can obtain the elastic force of the telescopic portion 22 and the stress size of the pressure member 21 by being connected with the telescopic portion 22.

[0040] Preferably, the telescopic portion 22 and the strength testing assembly 23 are located on the adjusting mechanism. In an embodiment, the telescopic portion 22 and the strength testing assembly 23 can be arranged on and fixed to the first bearing member 31. During the strength testing process, the pressure member 21 contacts the test element 4 and applies a certain stress, and the pressure member 21 has a certain displacement in the first direction X, but the end of the telescopic portion 22 away from the pressure member 21, the strength testing assembly 23 and the first bearing member 31 remain stationary, that is, the end of the telescopic portion 22 away from the pressure member 21, the strength testing assembly 23 does not move with the pressure member 21. In an embodiment, the end of the telescopic portion 22 away from the pressure member 21 is fixed to the first bearing member 31.

[0041] The strength testing component 23 includes at least one of a pointer 24 and a pressure sensor 25. The pointer 24 mechanically displays the elastic force value of the telescopic part 22, while the pressure sensor 25 digitally displays the elastic force value of the telescopic part 22 and the calculated stress value of the pressure component. The pointer 24 is mainly used to indicate the elastic force data of the telescopic part 22, providing real-time elastic force indication. The application of the pointer 24 facilitates the reading of the elastic force of the telescopic part 22, allowing the experimenter to obtain elastic force data in real time during the experiment. The pressure sensor 25 can convert the highly sensitive elastic force data of the telescopic part 22 and the stress data of the pressure component 21 into electrical signals for display, enabling more accurate acquisition of elastic force and stress data.

[0042] In addition, the strength testing component 23 also includes an external recording device connected to the pressure sensor 25 for real-time recording of pressure values ​​and pressure change curves. It can also determine whether the test area has failed based on its response to stress. In one embodiment, if the stress applied to the test area is gradually increased or the stress is maintained in the test area for a period of time, causing a sudden large range of numerical changes in the pressure change curve recorded by the external recording device, then the test element 4 can be determined to have failed without power.

[0043] Preferably, the adjustment mechanism is provided with a numerical scale 30 for obtaining the displacement of the telescopic part 22 when it deforms. In one embodiment, when the telescopic part 22 is in its initial state, i.e., when it is not subjected to external force, the side of the telescopic part 22 closest to the pressure member 21 in the direction parallel to the second direction Y is the scale 0 line, and there are scale lines on both sides of the 0 line. The displacement L of the telescopic part 22 when it deforms can be obtained through the numerical scale 30. The elastic force of the telescopic part 22 is proportional to the displacement L. In the formula, the elastic force of the telescopic part 22 is F_elastic = KL, where K is the elastic coefficient, which is determined by the properties of the material of the telescopic part 22. Combining the above formula, the elastic force data of the telescopic part 22 can be obtained through the displacement L of the telescopic part 22 when it deforms and the elastic coefficient K.

[0044] When testing the component 4, the formula for calculating the stress Fn applied by the pressure component 21 to the test area of ​​the component 4 is as follows:

[0045] Fn = F_bullet + Fg;

[0046] Fg is the partial gravity of the pressure piece 21 acting on the element 4 to be tested; when the mass of the pressure piece 21 is m, the gravity coefficient is g, and the included angle between the gravity direction G and the pressure piece 21 is θ, Fg = mgcosθ; when the pressure piece 21 is parallel to the base 1, the gravity of the pressure piece 21 does not act on the element 4 to be tested, and Fg is 0; when the pressure piece 21 is perpendicular to the base 1, the gravity of the pressure piece 21 acts on the element 4 to be tested completely, and Fg = mg. In an embodiment, the elastic part 22 can be a spring.

[0047] The strength testing device 10 can test the element 4 to be tested under the condition that the element 4 to be tested is electrified, and the element 4 to be tested is electrified through an external point screen device. When the element 4 to be tested is a display panel, the point screen device is connected to the lead-out line of the display panel through a power supply line, so that the bending area of the display panel is lighted, and then the test is performed, which facilitates real-time observation of whether the tested area, i.e., the bending area of the display panel, displays normally.

[0048] In another embodiment, the strength testing device 10 can also test the element 4 to be tested under the condition that the element 4 to be tested is not electrified. For example, the tested area of the element 4 to be tested is in contact with the pressure piece 21, and the pressure piece 21 applies a certain stress to the tested area. If necessary, the stress can be gradually increased or the stress application time can be prolonged. After a certain stage of testing is completed, the element 4 to be tested can be removed for electrification to confirm whether the element 4 to be tested is intact, so as to determine the stress bearing capacity of the element 4 to be tested.

[0049] Please refer to Figure 5 , Figure 5 which is a structural schematic view of the contact between the pressure piece and the tested area in the present application. In an embodiment, the side of the pressure piece 21 close to the base 1 has an arc-shaped end portion 26, which is concave to the side away from the base 1, so as to increase the area of adhesion to the element 4 to be tested. When the strength testing device 10 tests the bending area of the display panel, the bending area will present a semicircular arc shape. During the test, the side of the pressure piece 21 close to the base 1 is adhered to the bending area, and the other side is connected to the elastic part 22. The arc-shaped end portion is used to extrude the measured object area, and the stress of the object is transmitted to the elastic part 22. When the arc-shaped end portion 26 is concave to the side away from the base 1 during the measurement of the bending area of the display panel, the arc-shaped end portion 26 can be better in contact with the bending area, so that the measured stress data are more accurate. In another embodiment, the side of the pressure piece 21 close to the base 1 has a needle-shaped structure, which can move along the side of the pressure piece 21 close to the base 1, and can test a specific area of the element 4 to be tested.

[0050] Please refer to Figure 6 , Figure 6A flow chart of an embodiment of the strength testing method in the present application; the strength testing method in the present application uses the strength testing device 10 in the above embodiment of the present application, and the testing method comprises the following steps:

[0051] S1: placing and fixing the element to be tested 4 on the base 1;

[0052] In actual use, the element to be tested 4 can be fixed on the base 1 by using adhesive tape, or a jig matched with the element to be tested 4 can be arranged on the base 1 to fix the element to be tested 4, so as to fix the element to be tested 4 on the base 1.

[0053] S2: adjusting the testing angle so that the side of the pressure piece 21 close to the base 1 contacts the testing area of the element to be tested 4;

[0054] The slider 36 moves along the second sliding rail 35 to drive the support arm 37 to move, so as to change the angle between the strength testing mechanism 2 and the base 1; when the angle between the strength testing mechanism 2 and the base 1 meets the testing angle, the side of the pressure piece 21 close to the base 1 contacts the testing area.

[0055] S3: the strength testing mechanism 2 applies pressure to the element to be tested 4, and the strength testing assembly 23 records the pressure received by the element to be tested 4.

[0056] The pressure piece 21 in the strength testing mechanism 2 applies pressure to the element to be tested 4; the movement of the pressure piece 21 drives the telescopic part 22 to move, the displacement of the telescopic part 22 can determine the elastic force data, and the included angle between the pressure piece 21 and the base 1 can determine the gravity of the pressure piece 21 acting on the element to be tested 4. The stress applied by the strength testing mechanism 2 to the element to be tested 4 is the sum of the elastic force and the gravity. The strength testing assembly 23 records the stress data received by the element to be tested 4.

[0057] Please refer to Figure 7 , Figure 7 A flow chart of an embodiment corresponding to step S3 in the present application Figure 6 The specific implementation process of the above step S3 can comprise the following steps:

[0058] S31: gradually increasing the pressure applied by the strength testing mechanism 2 to the element to be tested 4 until the pressure reaches a preset value, detecting the performance of the element to be tested 4, and recording the pressure value at which the element to be tested 4 fails if the element to be tested 4 fails.

[0059] In the constant value test, when the test pressure reaches the preset value, the test pressure is completed, and then the performance of the test element 4 is detected to determine whether the test element 4 is abnormal. In an embodiment, the contact state of the pressure piece 21 and the test element 4 is extruded from 0 kgf, and the pressure piece 21 is pressed at a speed of 1 mm / min until the pressure reaches the preset value. After the test is completed, the test element 4 is powered on, and whether the test element 4 is abnormal is checked. If there is an abnormality, the extrusion pressure at which the abnormality occurs is recorded.

[0060] S32: Gradually increase the pressure applied by the strength testing mechanism 2 to the test element 4, and record the pressure value at which the test element 4 fails.

[0061] In the failure limit test, the contact state of the pressure piece 21 and the test area is controlled to be powered on and the pressure is continuously or intermittently increased until the test element 4 fails, and the extrusion pressure at which the test element 4 fails is recorded. In another embodiment, the stress change curve can also be used to determine whether the test element 4 has a line break or failure. If the test element 4 has a line break or failure, the stress measured by the external recording device will change abruptly.

[0062] S33: Gradually increase the pressure applied by the strength testing mechanism 2 to the test element 4 until the pressure reaches the preset value, and keep the pressure for the required test time.

[0063] In the fatigue strength test, the contact state of the pressure piece 21 and the test element 4 is controlled to be extruded from 0 kgf, and the pressure piece 21 is pressed at a speed of 1 mm / min until the pressure reaches the preset value. Keep the pressure for a period of time, remove the test element 4 and power it on to check for abnormalities. When the bending area of the display panel is subjected to a fatigue strength test, it can be used to simulate the actual display panel during assembly. The bending area will be extruded by other elements, and the bending area may also be deformed. Through the fatigue strength test, the failure of the bending area under deformation can be obtained.

[0064] By performing strength tests such as constant value tests, failure limit tests, and fatigue strength tests on the test element 4, the strength information of the test area of the test element 4 can be obtained. For areas with unsatisfactory strength performance, targeted improvements can be made to improve product quality.

[0065] By applying the strength testing device 10 in the present application to test the strength of the test element 4, the adjusting mechanism in the present application can realize the contact of the pressure piece 21 with different test areas of the test element 4, that is, the measurement of multiple different test areas of the test element 4. It is flexible to use and can obtain strength data of multiple test areas of the test element 4, providing data support for subsequent product strength improvement.

[0066] The above merely provides the implementation of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation based on the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A strength testing device, characterized by, The strength testing device comprises: a base for carrying and fixing a to-be-tested element; a strength testing mechanism comprising a pressure piece for contacting a to-be-tested area of the to-be-tested element and applying stress to the to-be-tested area; an adjusting mechanism, the pressure piece being located on the adjusting mechanism, the adjusting mechanism being used for adjusting the angle between the pressure piece and the base so that the pressure piece contacts different to-be-tested areas on the to-be-tested element; the adjusting mechanism being pivotally connected to the base; the strength testing mechanism further comprising: a telescopic part connected to the pressure piece, the telescopic part following the movement of the pressure piece to generate deformation; a strength testing assembly connected to the telescopic part, the strength testing assembly being used for testing the deformation of the telescopic part to obtain the stress value applied by the pressure piece to the to-be-tested area; the side of the pressure piece close to the base having an arc-shaped end, the arc-shaped end being concave to the side away from the base so as to increase the contact area with the to-be-tested element; when the strength testing device tests the bending area of the display panel, the bending area presents a semicircular arc shape, and in the testing process, the side of the pressure piece close to the base is in contact with the bending area, and the other side is connected to the telescopic part.

2. The strength testing device according to claim 1, wherein the adjusting mechanism comprises: a first carrier, the pressure piece being located on the first carrier, the pressure piece being in sliding connection with the first carrier; a support assembly, the support assembly being in movable connection with the first carrier and being pivotally connected to the base.

3. The strength testing device according to claim 2, wherein the support assembly comprises: a sliding block, the sliding block being in sliding connection with the first carrier in a first direction parallel to the surface of the first carrier, the first carrier being clamped into the sliding block in a second direction, the second direction being perpendicular to the first direction and parallel to the plane in which the first carrier is located; the sliding block comprising a limiting part provided on the side of the first carrier in the second direction; a support arm being pivotally connected to the base and being fixedly connected to the limiting part.

4. The strength testing device according to claim 3, wherein the sliding block comprises a recess provided adjacent to the limiting part, the recess being stacked with the first carrier, the pressure piece being stacked on the side of the recess away from the first carrier, or the pressure piece being stacked on the side of the recess close to the first carrier.

5. The strength testing device according to claim 1, wherein the telescopic part and the strength testing assembly are located on the adjusting mechanism.

6. The strength testing device according to claim 5, wherein the strength testing assembly comprises at least one of a pointer and a pressure sensor, the pointer mechanically displaying the stress value of the telescopic part, and the pressure sensor digitally displaying the pressure and elastic force of the telescopic part.

7. The strength testing device according to claim 6, wherein The adjusting mechanism is provided with a numerical scale for obtaining the displacement of the telescopic part when deformed.

8. The strength testing device according to claim 1, characterized in that, The strength testing device can test the element to be tested under the condition that the element to be tested is powered on, and the element to be tested is powered on through the external point screen device, and then the testing is performed, so as to facilitate real-time observation of whether the element to be tested is normal.

9. A strength testing method, characterized in that, The strength testing device according to any one of claims 1-8, the testing method comprises: placing and fixing the element to be tested on the base; adjusting the test angle, so that the side of the pressure piece close to the base is in contact with the test area of the element to be tested; the strength testing mechanism applies pressure to the element to be tested, and the strength testing assembly records the pressure received by the element to be tested.

10. The strength testing method according to claim 9, characterized in that, the step of applying pressure to the element to be tested by the strength testing mechanism and recording the pressure received by the element to be tested by the strength testing assembly comprises: gradually increasing the pressure applied to the element to be tested by the strength testing mechanism until the pressure reaches a preset value, detecting the performance of the element to be tested, and if the element to be tested fails, recording the pressure value at which the element to be tested fails, or; gradually increasing the pressure applied to the element to be tested by the strength testing mechanism and recording the pressure value at which the element to be tested fails, or; gradually increasing the pressure applied to the element to be tested by the strength testing mechanism until the pressure reaches a preset value, and keeping the pressure for a required testing time.

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