WO2018086043A1 - 弯曲测试装置 - Google Patents

弯曲测试装置 Download PDF

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Publication number
WO2018086043A1
WO2018086043A1 PCT/CN2016/105364 CN2016105364W WO2018086043A1 WO 2018086043 A1 WO2018086043 A1 WO 2018086043A1 CN 2016105364 W CN2016105364 W CN 2016105364W WO 2018086043 A1 WO2018086043 A1 WO 2018086043A1
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WO
WIPO (PCT)
Prior art keywords
bending
platform
roller
flexible
bending test
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PCT/CN2016/105364
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English (en)
French (fr)
Inventor
赵继刚
余晓军
魏鹏
袁泽
Original Assignee
深圳市柔宇科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by 深圳市柔宇科技有限公司 filed Critical 深圳市柔宇科技有限公司
Priority to PCT/CN2016/105364 priority Critical patent/WO2018086043A1/zh
Priority to CN201680031215.7A priority patent/CN107690564A/zh
Publication of WO2018086043A1 publication Critical patent/WO2018086043A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/20—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
    • G01B5/213—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures for measuring radius of curvature
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces

Definitions

  • the invention relates to the field of bending and testing technology, and in particular to a bending testing device.
  • the flexible device In the manufacturing process of the flexible device, the flexible device needs to be subjected to a bending test. Therefore, how to provide a bending test device that accurately and conveniently bends the flexible device becomes a problem to be solved.
  • the present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention needs to provide a bending test device.
  • a bending test apparatus is for testing a flexible device, the bending test apparatus comprising a carrying platform, a roller and a bending mechanism for carrying the flexible device, the roller being disposed above the carrying platform and used for The flexible device is pressed against the carrier platform, and the bending mechanism is coupled to the carrier platform and configured to bend the carrier platform to drive the flexible device to bend along an outer peripheral surface of the roller.
  • the bending mechanism can perform the bending test of the flexible device, and at the same time, the roller can serve as a support point for bending the flexible device, so that the curvature radius of the bending of the flexible device can be ensured in the bending test, thereby The accuracy of the test is ensured, and the structure of the bending test device is relatively simple, and the flexible device can be easily bent by the combination of the bending mechanism and the roller.
  • the carrying platform comprises two rigid platforms and one flexible platform, the two rigid platforms are respectively connected at opposite ends of the flexible platform, and the roller is disposed above the flexible platform. And the two rigid platforms together with the flexible platform form a bearing plane for carrying the flexible device, the flexible platform serving as a curved portion of the carrying platform, when the bending mechanism bends the flexible device, The roller is for pressing the flexible device against the flexible platform.
  • the bending mechanism includes a rotating shaft, a bending arm and a connecting arm, and the connecting arm and the rotating shaft are respectively connected to opposite ends of the bending arm, and one end of the supporting platform connects the connection An arm, the rotating shaft is located below the carrying platform, and the other end of the carrying platform is fixed, and a center of the roller is disposed apart from a center of the rotating shaft.
  • the bend testing device includes a resilient connector that connects the connecting arm and one end of the carrier platform.
  • the position of the roller and at least one of the shafts is adjustable to adjust the relative orientation of the center of the roller to the center of the shaft.
  • the rotating shaft includes two sub-rotating shafts disposed at intervals, and the two sub-rotating shafts are concentrically disposed and respectively located at two sides of the carrying platform.
  • the rotating shaft is a single rotating shaft, and the length of the rotating shaft is greater than the length of the rotating shaft.
  • the rotating shaft is disposed in parallel with the roller.
  • the number of the bending arms is two, and the two bending arms, the connecting arm and the rotating shaft are connected to form the bending mechanism in a frame shape.
  • the flexible device is disposed along a length of the carrier platform, the flexible device having an area that is smaller than an area of the carrier plane.
  • the roller and the rotating shaft are each disposed perpendicular to a length direction of the carrying platform, and the length of the roller is greater than a width of the flexible device.
  • the bend testing device includes a drive device coupled to the bending mechanism and configured to drive the bending mechanism to bend the load bearing platform.
  • the rollers are replaceably disposed above the load bearing platform to replace different materials and rollers of different radii according to different testing needs.
  • FIG. 1 is a schematic perspective view of a bending test apparatus according to an embodiment of the present invention.
  • FIG. 2 is an enlarged schematic view of a portion of the bending test apparatus 1 of FIG. 1.
  • FIG. 3 is another perspective view of a bending test apparatus according to an embodiment of the present invention.
  • FIG. 4 is a schematic plan view of a bending test apparatus according to an embodiment of the present invention.
  • Fig. 5 is another schematic plan view of a bending test apparatus according to an embodiment of the present invention.
  • Fig. 6 is a graph showing the stress variation during the test of the bending test apparatus according to the embodiment of the present invention.
  • Figure 7 is another stress variation curve during the testing of the bending test apparatus of the embodiment of the present invention.
  • Fig. 8 is a schematic structural view of a bending test apparatus according to an embodiment of the present invention.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include one or more of the described features either explicitly or implicitly.
  • the meaning of "a plurality” is two or more unless specifically and specifically defined otherwise.
  • connection In the description of the present invention, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or connected in one piece. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium, which can be the internal communication of two elements or the interaction of two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • the bending test apparatus 100 of the embodiment of the present invention is used to test the flexible device 10.
  • the bending test apparatus 100 includes a carrier platform 20 for carrying the flexible device 10, a roller 30, and a bending mechanism 40.
  • a roller 30 is disposed above the carrier platform 20 and is used to press the flexible device 10 against the carrier platform 20.
  • the bending mechanism 40 is coupled to the carrier platform 20 and is used to bend the carrier platform 20 to drive the flexible device 10 to bend along the outer circumferential surface of the roller 30.
  • the bending mechanism 40 can perform the bending test of the flexible device 10, while the roller 30 can serve as a support point for bending of the flexible device 10, so that the flexible device 10 can be secured in the bending test.
  • the curvature radius of curvature is curved to ensure the accuracy of the test, and the structure of the bending test apparatus 100 is relatively simple, and the flexible device 10 can be more easily bent by the combination of the bending mechanism 40 and the roller 30.
  • the bending test device 100 can be applied to different kinds of flexible devices 10, for example, the flexible device 10 can be an organic light emitting diode (OLED) display.
  • OLED organic light emitting diode
  • the bending test apparatus 100 can be used to test the mechanical properties of the flexible device 10, such as bendability and bending resistance, and the quality of the flexible device 10 can be determined from the test results.
  • the flexible device 10 can also be other flexible devices such as flexible touch screens, flexible circuit boards, and the like.
  • the bending mechanism 40 is rotatable relative to the roller 30 between the first position and the second position.
  • the flexible device 10 is carried on the carrying platform 20 and is in a fully deployed state.
  • the carrying platform 20 and the flexible device 10 are substantially horizontal, this is the pre-test state.
  • the bending mechanism 40 drives the carrying platform 20 The bending is performed to drive the flexible device 10 to bend along the outer circumferential surface of the roller 30.
  • the bearing platform 20 and the flexible screen 10 are both in a curved state, as shown in FIGS. 3 and 5. This completes the bending test of the flexible device 10.
  • multiple bending tests can be repeated to reduce test errors and the effect of the flexible device 10 on the reliability of the flexible device 10 after multiple bending tests can be determined to obtain accurate test results.
  • the degree of bending of the flexible device 10 along the outer circumferential surface of the roller 30 can be achieved by adjusting the distance that the bending mechanism 40 is rotated relative to the roller 30 between the first position and the second position. Also, the size of the roller 30 can be adjusted so that the applicable range of the bending test apparatus 100 can be increased by changing the size of the roller 30 to suit different test conditions.
  • the roller 30 is replaceably disposed above the carrier platform 20 to replace different materials and rollers of different radii according to different testing needs.
  • rollers 30 of different materials and different radii can be selected according to different test needs to adapt to different test environments, thereby increasing the application range of the bending test device 100.
  • the radius of the roller 30 ranges from 0.5 mm to 10 mm, and the material of the roller 30 can be plastic or metal, such as polycarbonate or alloy material.
  • the material of the roller 30 is not limited to the material in the embodiment of the present invention.
  • the load bearing platform 20 includes two rigid platforms 21 and one flexible platform 22. Two rigid platforms 21 are respectively connected at opposite ends of the flexible platform 22.
  • the roller 30 is disposed above the flexible platform 22.
  • the two rigid platforms 21 together with the flexible platform 22 form a bearing plane 20a for carrying the flexible device 10.
  • the flexible platform 22 serves as a curved portion of the carrier platform 20 for pressing the flexible device 10 against the flexible platform 20 as the bending mechanism 40 bends the flexible device 10.
  • the flexible device 10 is in flexible contact with the flexible platform 22, and when the bending mechanism 40 bends the carrier platform 20, the flexible platform 22 and the flexible device 10 are collectively bent along the outer peripheral surface of the roller 30, since the flexible device 10 is in flexible contact with the flexible platform 22, Thereby, the interaction force between the flexible device 10 and the flexibility of the flexible platform 22 can be reduced, the friction between the flexible device 10 and the roller 30 can be reduced, the surface damage can be reduced, and the error during the test can be reduced, and the bending test can be improved. The accuracy of the device 100 test.
  • the flexible device 10 is curved in a circular arc, and the flexible platform 22 is curved in a circular arc shape.
  • the bending direction of the flexible device 10 is the same as the bending direction of the flexible platform 22.
  • the bending direction of the flexible platform 22 in conformity with the flexible device 10 ensures the flexible device 10 and the flexible platform.
  • the orientation of the 22 is uniform, so that the direction of the force of the flexible platform 22 and the flexible device 10 during the bending of the flexible device 10 can be ensured, thereby ensuring the accuracy of the test.
  • the flexible platform 22 is constructed of a flexible material, such as silica gel. As such, the flexible platform 22 can be curved and has better flexibility and bending resistance.
  • the bending mechanism 40 includes a rotating shaft 41, a curved arm 42, and a connecting arm 43.
  • the connecting arm 43 and the rotating shaft 41 are respectively connected to opposite ends of the curved arm 42.
  • One end of the carrying platform 20 is connected to the connecting arm 43 , and the rotating shaft 41 is located below the carrying platform 20 .
  • the other end of the carrying platform 20 is fixed.
  • the center 31 of the roller 30 is spaced apart from the center 411 of the rotating shaft 41.
  • the rotating shaft 41 and the roller 30 are respectively located on the upper and lower sides of the carrying platform 20, so that the bending mechanism 40 can be rotated relative to the rotating shaft 41 by the driving connecting arm 43 and the bending arm 42 to drive the flexible device 10 to bend along the outer circumferential surface of the roller 30.
  • the driving mode of the bending mechanism 40 is more labor-saving, and at the same time, since the center 31 of the roller 30 is spaced apart from the center 411 of the rotating shaft 41, it is possible to prevent the roller 30 and the rotating shaft 41 from interacting with each other during the rotating process, thereby causing the rotating shaft 41 to be applied.
  • the force distribution on the flexible device 10 is uneven, thereby affecting the accuracy of the test results.
  • upper and lower are positional states in the normal use state of the bending test apparatus 100, such as the positional state of the bending test apparatus 100 shown in FIGS. 4 and 5.
  • the bending test device 100 includes a resilient connector 50.
  • the elastic connecting member 50 connects the connecting arm 43 and one end of the carrying platform 20.
  • the elastic connecting member 50 can buffer the force, thereby ensuring the smoothness of the rotation of the connecting arm 43 and the bending arm 42 with respect to the rotating shaft 41, thereby ensuring the flexible device 10.
  • the flexible device 10 is carried on the carrying platform 20 as a sample to be tested.
  • the carrying platform 20 Before the test, the carrying platform 20 is in a horizontal state, and the elastic connecting member 50 is in a stretched state.
  • the elastic connecting member 50 maintains the same tensile state during the rotation, thereby ensuring the smoothness of the rotation of the connecting arm 43 and the bending arm 42 with respect to the rotating shaft 41, and ensuring that the sample to be tested can be Fully curved outside the roller 30, the curvature of curvature is guaranteed, and the pressure of the sample to be tested is reduced in the radial direction.
  • the power output of the power system of the bending mechanism 40 can be reduced, and the power output can be kept flat.
  • the center 31 of the roller 30 is spaced apart from the center 411 of the rotating shaft 41 to ensure the service life of the elastic connecting member 50, and to reduce the damage caused by the radial pressure and friction on the sample to be tested, and improve the test. The accuracy of the results.
  • the resilient connector 50 is a spring.
  • the elastic connecting member 50 is easily deformed and has excellent elastic properties.
  • the position of the roller 30 and at least one of the shafts 41 is adjustable to enable the rollers
  • the relative orientation of the center of 30 and the center of the shaft 41 is adjustable.
  • the elastic connecting member if the position of the roller 30 and the rotating shaft 41 is not adjustable, a situation as shown in FIG. 6 may occur.
  • the curve a1 indicates the carrying platform 20 and the flexible device. 10
  • the trajectory of the motion during the test curve b1 represents the stress curve of the elastic connector during the test.
  • the elastic connecting member 50 is gradually contracted, so that the radius of rotation of the elastic connecting member 50 plus the carrying platform 20 is reduced, the stress of the elastic connecting member 50 is reduced, and the stress of the elastic connecting member 50 is "pre-large and small". Uniform variation affects the life of the elastic connector 50 and the test accuracy of the flexible device
  • the position of the rotating shaft 30 can be kept unchanged, and the position of the rotating shaft 41 can be adjusted to adjust the center 31 of the roller 30 and the center 411 of the rotating shaft 41.
  • the relative orientation is such that the stress variation of the elastic connecting member 50 is relatively uniform during the test.
  • the curve a2 is the movement track of the bearing platform 20 and the flexible device 10 during the test, and the curve b2 indicates the elastic connection.
  • the stress variation of the piece 50 during the test as can be seen from Fig. 7, after the relative orientation of the two centers is adjusted, during the test, the stress of the elastic connecting member 50 changes more evenly, and the elastic connection shown in Fig. 6 is not obtained.
  • the condition of the piece 50 "tightening before and after loosening" further ensures the life of the elastic connecting member 50 and the accuracy of the test result of the flexible device 10.
  • the rotating shaft 41 includes two sub-rotating shafts 412 which are disposed at intervals.
  • the two sub-rotating shafts 412 are concentrically disposed and respectively located on both sides of the carrying platform 20.
  • the rotating shaft 41 is a single rotating shaft, and the length of the rotating shaft 41 is greater than the length of the roller 30.
  • the structure is relatively simple, and when the flexible device 10 is bent along the outer peripheral surface of the roller 30, the portions of the flexible device 10 are relatively uniformly stressed, thereby ensuring the uniformity of the state in which the portions of the flexible device 10 are bent along the roller 30.
  • the number of the bending arms 42 is two, and the two bending arms 42, the connecting arms 43, and the rotating shaft 41 are connected to form a frame-shaped bending mechanism 40.
  • the frame-shaped bending mechanism 40 allows the connecting arm 43 and the bending arm 42 to rotate more smoothly with respect to the rotating shaft 41, thereby ensuring the stability of the test of the bending test apparatus 100.
  • the rotating shaft 41 is disposed in parallel with the roller 30.
  • the direction in which the flexible device 10 is bent along the outer peripheral surface of the roller 30 is substantially the same as the direction in which the bending arm 42 and the connecting arm 43 rotate relative to the rotating shaft 41, thus ensuring the accuracy of the test.
  • the flexible device 10 is disposed along the length of the carrier platform 20, and the area of the flexible device 10 is less than the area of the carrier plane 20a of the carrier platform 10.
  • the roller 30 and the rotating shaft 41 are both disposed perpendicular to the length of the carrying platform 20, and the length of the roller 30 is greater than the width of the flexible device 10.
  • the bending test device 100 includes a drive device 60.
  • the drive unit 60 is coupled to the bending mechanism 40 and is used to drive the bending mechanism 40 to rotate relative to the roller 30 to bend the carrier platform 20.
  • the bending test device 100 is driven by the driving device 60, and the driving is more convenient and convenient for testing.
  • the driving device 60 rotates by driving the rotating shaft 41 to drive the connecting arm 43 and the bending arm 42 to rotate relative to the driving device 60, so that the flexible platform 22 and the flexible device 10 are simultaneously along the outer circumference of the roller 30.
  • the surface is curved.
  • the first feature "on” or “under” the second feature may include direct contact of the first and second features, and may also include first and second features, unless otherwise specifically defined and defined. It is not in direct contact but through additional features between them.
  • the first feature "above”, “above” and “above” the second feature includes the first feature directly above and above the second feature, or merely indicating that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature includes the first feature directly below and below the second feature, or merely the first feature level being less than the second feature.

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Abstract

一种弯曲测试装置（100）用于测试柔性器件（10），所述弯曲测试装置（100）包括用于承载所述柔性器件（10）的承载平台（20）、滚轴（30）及弯曲机构（40），所述滚轴（30）设置在所述承载平台（20）上方并用于将所述柔性器件（10）压在所述承载平台（20）上，所述弯曲机构（40）连接所述承载平台（20）并用于弯曲所述承载平台（20）以带动所述柔性器件（10）沿所述滚轴（30）的外周面弯曲。该弯曲测试装置的弯曲机构（40）可实现柔性器件（10）的弯曲测试，同时，滚轴（30）可作为柔性器件（10）弯曲的支承点，可以在弯曲测试中保障柔性器件弯曲的曲率半径，从而保证测试的准确性，同时弯曲测试装置（100）的结构较为简单，可通过弯曲机构（40）与滚轴（30）的结合而较为方便地弯曲柔性器件。

Description

弯曲测试装置 技术领域
本发明涉及弯曲、测试技术领域，尤其是涉及一种弯曲测试装置。
背景技术
在柔性器件的制造过程中，需对柔性器件进行弯曲测试，因此，如何提供一种测试准确且较方便地弯曲柔性器件的弯曲测试装置成为待解决的问题。
发明内容
本发明旨在至少解决现有技术中存在的技术问题之一。为此，本发明需要提供一种弯曲测试装置。
本发明实施方式的弯曲测试装置用于测试柔性器件，所述弯曲测试装置包括用于承载所述柔性器件的承载平台、滚轴及弯曲机构，所述滚轴设置在所述承载平台上方并用于将所述柔性器件压在所述承载平台上，所述弯曲机构连接所述承载平台并用于弯曲所述承载平台以带动所述柔性器件沿所述滚轴的外周面弯曲。
在本发明实施方式的弯曲测试装置中，弯曲机构可实现柔性器件的弯曲测试，同时，滚轴可作为柔性器件弯曲的支承点，如此，可以在弯曲测试中保障柔性器件弯曲的曲率半径，从而保证测试的准确性，同时弯曲测试装置的结构较为简单，可通过弯曲机构与滚轴的结合而较为方便地弯曲柔性器件。
在一个实施方式中，所述承载平台包括两个刚性平台及一个柔性平台，所述两个刚性平台分别连接在所述柔性平台相背的两端，所述滚轴设置在所述柔性平台上方，所述两个刚性平台与所述柔性平台共同形成用于承载所述柔性器件的承载平面，所述柔性平台作为所述承载平台的弯曲部分，在所述弯曲机构弯曲所述柔性器件时，所述滚轴用于将所述柔性器件压在所述柔性平台上。
在一个实施方式中，所述弯曲机构包括转轴、弯曲臂及连接臂，所述连接臂及所述转轴分别连接在所述弯曲臂相背的两端，所述承载平台的一端连接所述连接臂，所述转轴位于所述承载平台的下方，所述承载平台的另一端固定，所述滚轴的圆心与所述转轴的圆心相隔设置。
在一个实施方式中，所述弯曲测试装置包括弹性连接件，所述弹性连接件连接所述连接臂及所述承载平台的一端。
在一个实施方式中，所述滚轴与所述转轴中的至少一个轴的位置是可调整的以使所述滚轴的圆心与所述转轴的圆心的相对方位可调。
在一个实施方式中，所述转轴包括间隔设置的两个子转轴，所述两个子转轴同心设置并分别位于所述承载平台的两侧。
在一个实施方式中，所述转轴为单一的转轴，所述转轴的长度大于所述滚轴的长度。
在一个实施方式中，所述转轴与所述滚轴平行设置。
在一个实施方式中，所述弯曲臂的数量为两个，所述两个弯曲臂、所述连接臂及所述转轴连接形成呈框状的所述弯曲机构。
在一个实施方式中，所述柔性器件沿所述承载平台的长度方向设置，所述柔性器件的面积小于所述承载平面的面积。
在一个实施方式中，所述滚轴及所述转轴均垂直于所述承载平台的长度方向设置，所述滚轴的长度大于所述柔性器件的宽度。
在一个实施方式中，所述弯曲测试装置包括驱动装置，所述驱动装置连接所述弯曲机构并用于驱动所述弯曲机构弯曲所述承载平台。
在一个实施方式中，所述滚轴是可更换地设置在所述承载平台上方以根据不同测试需要而更换不同的材质和不同半径的滚轴。
本发明实施方式的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
附图说明
本发明的上述和/或附加的方面和优点从结合下面附图对实施方式的描述中将变得明显和容易理解，其中：
图1是本发明实施方式的弯曲测试装置的立体示意图。
图2是图1的弯曲测试装置Ⅰ部分的放大示意图。
图3是本发明实施方式的弯曲测试装置的另一立体示意图。
图4是本发明实施方式的弯曲测试装置的平面示意图。
图5是本发明实施方式的弯曲测试装置的另一平面示意图。
图6是本发明实施方式的弯曲测试装置测试过程中的应力变化曲线。
图7是本发明实施方式的弯曲测试装置测试过程中的另一应力变化曲线。
图8是本发明实施方式的弯曲测试装置的结构示意图。
具体实施方式
下面详细描述本发明的实施方式，所述实施方式的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施方式是示例性的，仅用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接。可以是机械连接，也可以是电连接。可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
请一并参阅图1～图7，本发明实施方式的弯曲测试装置100用于测试柔性器件10。弯曲测试装置100包括用于承载柔性器件10的承载平台20、滚轴30及弯曲机构40。滚轴30设置在承载平台20上方并用于将柔性器件10压在承载平台20上。弯曲机构40连接承载平台20并用于弯曲承载平台20以带动柔性器件10沿滚轴30的外周面弯曲。
在本发明实施方式的弯曲测试装置100中，弯曲机构40可实现柔性器件10的弯曲测试，同时，滚轴30可作为柔性器件10弯曲的支承点，如此，可以在弯曲测试中保障柔性器件10弯曲的曲率半径，从而保证测试的准确性，同时弯曲测试装置100的结构较为简单，可通过弯曲机构40与滚轴30的结合而较为方便地弯曲柔性器件10。
在本发明实施方式中，弯曲测试装置100可适用于不同种类的柔性器件10，例如柔性器件10可为有机发光二极管(OLED)显示屏。弯曲测试装置100可用于测试柔性器件10的机械性能，例如可弯曲度及耐弯曲性，并且可由测试结果，确定柔性器件10的质量。当然，柔性器件10也可为其它柔性器件，如柔性触摸屏、柔性电路板等。
具体地，弯曲机构40可相对于滚轴30在第一位置及第二位置之间转动，当弯曲机构40处于第一位置时，柔性器件10承载在承载平台20上并处于完全展开状态，此时承载平台20及柔性器件10均基本呈水平状态，此为测试前状态，如图1及4所示，当弯曲机构40由第一位置转动至第二位置时，弯曲机构40驱动承载平台20弯曲以带动柔性器件10沿滚轴30的外周面弯曲，此时，承载平台20及柔性屏10均处于弯曲状态，如图3及5所示。这样便完成了一次对柔性器件10的弯曲测试。如此，可重复进行多次弯曲测试，以降低测试误差，并可确定柔性器件10在多次弯曲测试之后对柔性器件10信赖性的影响，从而得到准确的测试结果。
需要说明的是，柔性器件10沿滚轴30的外周面弯曲的程度可通过调节弯曲机构40相对于滚轴30在第一位置及第二位置之间转动的距离来实现。并且，滚轴30的尺寸可调节，这样可通过改变滚轴30的尺寸以适用不同的测试条件，从而增大弯曲测试装置100的适用范围。
在一个实施方式中，滚轴30是可更换地设置在承载平台20上方以根据不同测试需要而更换不同的材质和不同半径的滚轴。
如此，可以根据不同测试需要而选择不同材质和不同半径的滚轴30，以适用不同的测试环境，从而增大了弯曲测试装置100的适用范围。
在一个例子中，滚轴30的半径的尺寸范围为0.5mm～10mm，滚轴30的材质可为塑料或者金属，例如聚碳酸树酯或合金材料等。
需要说明的是，滚轴30的材质并不仅限于本发明实施方式中的材料。
在一个实施方式中，承载平台20包括两个刚性平台21及一个柔性平台22。两个刚性平台21分别连接在柔性平台22相背的两端。滚轴30设置在柔性平台22上方。两个刚性平台21与柔性平台22共同形成用于承载柔性器件10的承载平面20a。柔性平台22作为承载平台20的弯曲部分，在弯曲机构40弯曲柔性器件10时，滚轴30用于将柔性器件10压在柔性平台20上。
如此，柔性器件10与柔性平台22柔性接触，在弯曲机构40弯曲承载平台20时，柔性平台22及柔性器件10共同沿滚轴30的外周面弯曲，由于柔性器件10与柔性平台22柔性接触，从而可降低柔性器件10与柔性平台22柔性之间的相互作用力，也减小柔性器件10和滚轴30之间的摩擦力，减少表面损伤，进而可降低测试过程中的误差，提高弯曲测试装置100测试的准确度。
在一个实施方式中，柔性器件10呈圆弧弯曲状，柔性平台22呈圆弧弯曲状。柔性器件10的弯曲方向与柔性平台22的弯曲方向相同。
如此，柔性平台22与柔性器件10一致的弯曲方向可保证柔性器件10与柔性平台 22的朝向一致，从而可保证在柔性器件10弯曲过程中柔性平台22与柔性器件10受力方向的一致，从而保证测试的准确性。
在一个实施方式中，柔性平台22由柔性材料构成，例如硅胶。如此，柔性平台22可弯曲且具有较好的柔韧性和耐弯折性能。
在一个实施方式中，弯曲机构40包括转轴41、弯曲臂42及连接臂43。连接臂43及转轴41分别连接在弯曲臂42相背的两端。承载平台20的一端连接连接臂43，转轴41位于承载平台20的下方。承载平台20的另一端固定。滚轴30的圆心31与转轴41的圆心411相隔设置。
如此，转轴41与滚轴30分别位于承载平台20的上下两侧，这样弯曲机构40可通过驱动连接臂43及弯曲臂42相对于转轴41转动以带动柔性器件10沿滚轴30的外周面弯曲，并且弯曲机构40转动的驱动方式更加省力，同时，由于滚轴30的圆心31与转轴41的圆心411相隔设置，这样可避免在转动过程中滚轴30与转轴41相互影响而造成转轴41施加在柔性器件10上的作用力分布不均匀，从而影响测试结果的准确性。
需要指出的是，“上方”、“下方”是弯曲测试装置100的正常使用状态下的位置状态，例如图4及图5所示弯曲测试装置100的位置状态。
在一个实施方式中，弯曲测试装置100包括弹性连接件50。弹性连接件50连接连接臂43及承载平台20的一端。
如此，当驱动连接臂43及弯曲臂42相对于转轴41转动时，弹性连接件50可缓冲受力，从而保证连接臂43及弯曲臂42相对于转轴41转动的平稳性，进而保证柔性器件10沿滚轴30的外周面弯曲的平稳性。
具体地，柔性器件10作为被测试样品承载在承载平台20上，在测试前，承载平台20处于水平状态，弹性连接件50处于被拉伸状态。当弯曲机构40弯曲承载平台20进行测试时，弹性连接件50在转动过程中维持相同的拉伸状态，从而保证连接臂43及弯曲臂42相对于转轴41转动的平稳性，确保被测试样品可以充分弯曲在滚轴30之外，保障弯曲曲率，减少被测试样品在径向上所受压力。同时可以减少弯曲机构40的动力系统的动力输出，保持动力输出的平缓。
在本发明实施方式中，滚轴30的圆心31与转轴41的圆心411相隔设置既可以保证弹性连接件50的使用寿命，又可以减少径向压力和摩擦对被测试样品产生的损伤，提高测试结果的准确性。
在一个实施方式中，弹性连接件50为弹簧。如此，弹性连接件50易变形，弹性性能较好。
在一个实施方式中，滚轴30与转轴41中的至少一个轴的位置是可调整的以使滚轴 30的圆心与转轴41的圆心的相对方位可调。
如此，这样可通过调整滚轴30或转轴41中的至少一个轴的位置以减小测试过程中弹性连接件50的应力变化，并使得在测试过程中弹性连接件50的应力变化较为均匀，进而可减小测试过程中径向应力对柔性器件10的影响，从而既可以保证弹性连接件50的使用寿命，又可以提高测试结果的准确性，避免柔性器件10受到径向压力带来的损伤，也减少了柔性器件10与滚轴30之间的摩擦。可以最大限度保证测试的准确性。
例如，在设置弹性连接件的情况下，若滚轴30与转轴41的位置不可调，会出现如图6所示的情况，具体地，在图6中，曲线a1表示承载平台20及柔性器件10在测试过程中的运动轨迹，曲线b1表示弹性连接件在测试过程中的应力变化曲线。
在测试过程中，弹性连接件50逐渐收缩，使得弹性连接件50加上承载平台20的旋转半径减少，弹性连接件50的应力减少，出现弹性连接件50的应力“前大后小”的不均匀变化现象，会影响弹性连接件50的寿命及柔性器件的测试准确性
当滚轴30与转轴41中至少一个轴是可调整时，例如，可保持滚轴30的位置不变同，调整转轴41的位置，以调整滚轴30的圆心31与转轴41的圆心411的相对方位，使得在测试过程中，弹性连接件50的应力变化较均匀，具体地，请参图7，曲线a2为承载平台20及柔性器件10在测试过程中的运动轨迹，曲线b2表示弹性连接件50在测试过程中的应力变化，由图7可知，两个圆心的相对方位调整后，在测试过程中，弹性连接件50的应力变化较均匀，不会出再图6所示的弹性连接件50“前紧后松”的情况，进而保证了弹性连接件50的寿命及柔性器件10的测试结果的准确性。
在一个实施方式中，请参阅图1、图2及图3，转轴41包括间隔设置的两个子转轴412。两个子转轴412同心设置并分别位于承载平台20的两侧。
如此，滚轴30与转轴41之间的相互影响较小，在根据测试的需要而移动滚轴30及/或转轴41的位置时，不会发生冲突。
在一个实施方式中，请参图8，转轴41为单一的转轴，转轴41的长度大于滚轴30的长度。
如此，结构较为简单，并且在柔性器件10沿滚轴30的外周面弯曲时，柔性器件10各部分受力较为均匀，从而保证了柔性器件10各部分沿滚轴30弯曲的状态的一致性。
在一个实施方式中，请参图8，弯曲臂42的数量为两个，两个弯曲臂42、连接臂43及转轴41连接形成呈框状的弯曲机构40。
如此，呈框状的弯曲机构40可使得连接臂43及弯曲臂42更平稳地相对于转轴41转动，从而保证弯曲测试装置100测试的稳定性。
在一个实施方式中，转轴41与滚轴30平行设置。
如此，柔性器件10沿滚轴30的外周面弯曲方向与弯曲臂42及连接臂43相对于转轴41转动的方向基本一致，这样保证了测试的准确性。
在一个实施方式中，柔性器件10沿承载平台20的长度方向设置，柔性器件10的面积小于承载平台10的承载平面20a的面积。
如此，可保证柔性器件10沿滚轴30的外周面弯曲时各部分均匀受力。
在一个实施方式中，滚轴30及转轴41均垂直于承载平台20的长度方向设置，滚轴30的长度大于柔性器件10的宽度。
如此，可保证柔性器件10沿滚轴30的外周面弯曲时受力均匀。
在一个实施方式中，弯曲测试装置100包括驱动装置60。驱动装置60连接弯曲机构40并用于驱动弯曲机构40相对于滚轴30转动以弯曲承载平台20。
如此，弯曲测试装置100通过驱动装置60驱动，驱动更加便捷，方便测试。
具体地，在本发明实施方式中，驱动装置60通过驱动转轴41转动以带动连接臂43及弯曲臂42相对于驱动装置60转动，从而使得柔性平台22及柔性器件10同时沿滚轴30的外周面弯曲。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
下文的公开提供了许多不同的实施方式或例子用来实现本发明的不同结构。为了简化本发明的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本发明。此外，本发明可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。此外，本发明提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
在本说明书的描述中，参考术语“一个实施方式”、“一些实施方式”、“示意性实施方式”、“示例”、“具体示例”、或“一些示例”等的描述意指结合实施方式或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施方式或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施方式或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施方式或示例中以合适的方式结合。
尽管已经示出和描述了本发明的实施方式，本领域的普通技术人员可以理解：在不 脱离本发明的原理和宗旨的情况下可以对这些实施方式进行多种变化、修改、替换和变型，本发明的范围由权利要求及其等同物限定。

Claims (13)

  1. 一种弯曲测试装置，用于测试柔性器件，其特征在于，所述弯曲测试装置包括：
    用于承载所述柔性器件的承载平台；
    滚轴，所述滚轴设置在所述承载平台上方并用于将所述柔性器件压在所述承载平台上；弯曲机构，所述弯曲机构连接所述承载平台并用于弯曲所述承载平台以带动所述柔性器件沿所述滚轴的外周面弯曲。
  2. 如权利要求1所述的弯曲测试装置，其特征在于，所述承载平台包括两个刚性平台及一个柔性平台，所述两个刚性平台分别连接在所述柔性平台相背的两端，所述滚轴设置在所述柔性平台上方，所述两个刚性平台与所述柔性平台共同形成用于承载所述柔性器件的承载平面，所述柔性平台作为所述承载平台的弯曲部分，在所述弯曲机构弯曲所述柔性器件时，所述滚轴用于将所述柔性器件压在所述柔性平台上。
  3. 如权利要求1所述的弯曲测试装置，其特征在于，所述弯曲机构包括转轴、弯曲臂及连接臂，所述连接臂及所述转轴分别连接在所述弯曲臂相背的两端，所述承载平台的一端连接所述连接臂，所述转轴位于所述承载平台的下方，所述承载平台的另一端固定；所述滚轴的圆心与所述转轴的圆心相隔设置。
  4. 如权利要求3所述的弯曲测试装置，其特征在于，所述弯曲测试装置包括弹性连接件，所述弹性连接件连接所述连接臂及所述承载平台的一端。
  5. 如权利要求4所述的弯曲测试装置，其特征在于，所述滚轴与所述转轴中的至少一个轴的位置是可调整的以使所述滚轴的圆心与所述转轴的圆心的相对方位可调。
  6. 如权利要求4所述的弯曲测试装置，其特征在于，所述转轴包括间隔设置的两个子转轴，所述两个子转轴同心设置并分别位于所述承载平台的两侧。
  7. 如权利要求3所述的弯曲测试装置，其特征在于，所述转轴为单一的转轴，所述转轴的长度大于所述滚轴的长度。
  8. 如权利要求3所述的弯曲测试装置，其特征在于，所述转轴与所述滚轴平行设置。
  9. 如权利要求3所述的弯曲测试装置，其特征在于，所述弯曲臂的数量为两个，所述两个弯曲臂、所述连接臂及所述转轴连接形成呈框状的所述弯曲机构。
  10. 如权利要求2所述的弯曲测试装置，其特征在于，所述柔性器件沿所述承载平台的长度方向设置，所述柔性器件的面积小于所述承载平面的面积。
  11. 如权利要求3所述的弯曲测试装置，其特征在于，所述滚轴及所述转轴均垂直于所述承载平台的长度方向设置，所述滚轴的长度大于所述柔性器件的宽度。
  12. 如权利要求1所述的弯曲测试装置，其特征在于，所述弯曲测试装置包括驱动装置，所述驱动装置连接所述弯曲机构并用于驱动所述弯曲机构弯曲所述承载平台。
  13. 如权利要求1所述的弯曲测试装置，其特征在于，所述滚轴是可更换地设置在所述承载平台上方以根据不同测试需要而更换不同的材质和不同半径的滚轴。
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