CN216208239U

CN216208239U - Light guide plate pliability test fixture

Info

Publication number: CN216208239U
Application number: CN202122593256.6U
Authority: CN
Inventors: 张春; 王开群; 黄山芝
Original assignee: Huizhou Baoming Seiko Co ltd
Current assignee: Huizhou Baoming Seiko Co ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2022-04-05
Anticipated expiration: 2031-10-27

Abstract

The utility model relates to a flexibility test fixture for a light guide plate, which comprises a positioning component for positioning the light guide plate, a rotating component for driving the light guide plate to partially rotate, and an angle adjusting component for adjusting the rotating angle of the light guide plate; the rotating assembly and the positioning assembly are arranged adjacently, the rotating assembly comprises a turnover plate and a rotary driving piece, the turnover plate is arranged in a rotating mode, and the output end of the rotary driving piece is connected with the turnover plate. The utility model can automatically bend the light guide plate, reduces the labor intensity of operators, and can intuitively provide an accurate fracture angle, so that the test data is more accurate and reliable.

Description

Light guide plate pliability test fixture

Technical Field

The utility model relates to the field of test jigs, in particular to a light guide plate flexibility test jig.

Background

With the development of backlight industry, the quality requirement of light guide plates is higher and higher, and the flexibility of light guide plates is one of the important indexes for measuring the physical properties of light guide plates. The existing flexibility test of the light guide plate generally adopts a manual bending mode, a tester manually holds the light guide plate and forcibly bends the light guide plate until the light guide plate is broken, and then the broken angle is estimated and recorded. The manual operation test mode has high labor intensity and large test error, and the fracture angle cannot be accurately recorded, so that the test data is inaccurate.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a light guide plate flexibility test fixture which can automatically bend a light guide plate, reduce the labor intensity of operators, and intuitively provide an accurate fracture angle so that test data is more accurate and reliable.

A flexibility test fixture for a light guide plate comprises a positioning component for positioning the light guide plate, a rotating component for driving the light guide plate to rotate, and an angle adjusting component for adjusting the rotating angle of the light guide plate; the rotating assembly and the positioning assembly are arranged adjacently, the rotating assembly comprises a turnover plate and a rotary driving piece, the turnover plate is arranged in a rotating mode, and the output end of the rotary driving piece is connected with the turnover plate.

Furthermore, the positioning assembly comprises a bottom plate and a pressing plate which are oppositely arranged, and a gap for inserting the light guide plate is formed between the bottom plate and the pressing plate.

Further, angle adjusting part includes rotatory piece, limit stop and calibrated scale, rotatory piece is located the pivot of returning face plate just can rotate along with the returning face plate, the calibrated scale with rotatory piece is adjacent to be set up, limit stop locates on the calibrated scale, limit stop can use the center of calibrated scale as the rotation of axle.

Furthermore, the number of the limit stops is two, and the two limit stops can independently rotate.

Furthermore, one side of the turnover plate, which is far away from the positioning assembly, is provided with a taking and placing groove.

Furthermore, an eye protection cover plate is arranged above the positioning assembly.

Compared with the prior art, the utility model has the beneficial effects that: the positioning assembly can fix the light guide plate to be tested, and the light guide plate can be automatically driven to be bent through the rotating assembly, so that the problem of overlarge labor intensity caused by manual bending is avoided. The angle adjusting component can adjust the maximum bending angle of the light guide plate, and can visually see the fracture angle of the light guide plate through the dial, so that the test data are more accurate and reliable.

Drawings

FIG. 1 is a schematic structural diagram of a flexibility testing fixture for a light guide plate according to the present invention.

FIG. 2 is a schematic structural diagram of an angle adjustment assembly of the jig for testing flexibility of a light guide plate according to the present invention.

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

The flexibility test fixture for the light guide plate 4 is mainly used for flexibility test of the light guide plate 4, and can reduce the labor intensity of testers, improve the test efficiency and precision and ensure the accuracy of test data. In practical application, the test device can also be used for bending and flexibility tests of other plate-shaped materials.

As shown in fig. 1 and fig. 2, in a preferred embodiment, the flexibility testing fixture for a light guide plate 4 of the present invention mainly includes a positioning assembly 1, a rotating assembly 2, and an angle adjusting assembly 3. The positioning assembly 1 is used for positioning the light guide plate 4, the rotating assembly 2 is used for driving the light guide plate 4 to partially rotate, and the angle adjusting assembly 3 is used for adjusting the rotating angle of the light guide plate 4. In this embodiment, locating component 1, rotating assembly 2 and angle adjusting component 3 all locate one in the hollow box that is the cuboid, the front side opening of this box, locating component 1 in order to test can be put into from the front side to the light guide plate 4 that awaits measuring, and for the convenience of observing, figure 1 hides the curb plate of one side wherein of box.

Specifically, the positioning assembly 1 includes a bottom plate 11 and a pressing plate 12, the bottom plate 11 and the pressing plate 12 are disposed oppositely, and the pressing plate 12 is located above the bottom plate 11, the bottom plate 11 is used for bearing the light guide plate 4, the pressing plate 12 is used for limiting the light guide plate 4 from above, and a gap for inserting the light guide plate 4 is formed between the bottom plate 11 and the pressing plate 12. It can be understood that the height of the gap between the bottom plate 11 and the pressing plate 12 can be flexibly set according to the thickness of the light guide plate 4.

The rotating assembly 2 is adjacent to the positioning assembly 1, the rotating assembly 2 comprises an overturning plate 21 and a rotary driving piece 22, the overturning plate 21 is rotatably arranged, and the output end of the rotary driving piece 22 is connected with the overturning plate 21. In this embodiment, the turnover plate 21 is disposed at the front side of the bottom plate 11, the rotation axis of the turnover plate 21 is horizontal and extends along the length direction of the bottom plate 11, the turnover plate 21 can rotate to make the surface of the turnover plate flush with the surface of the bottom plate 11, the rotation driving member 22 can be an existing rotation driving device, for example, the rotation driving member 22 can be a rotation cylinder, and the rotation driving member 22 can drive the turnover plate 21 to rotate along the rotation axis. During testing, the light guide plate 4 is inserted in the positioning assembly 1, the part of the light guide plate 4 extends out of the positioning assembly 1 and extends onto the turnover plate 21, the rotary driving piece 22 drives the turnover plate 21 to rotate, and the turnover plate 21 extrudes the light guide plate 4 to bend the light guide plate 4, so that the flexibility of the light guide plate 4 is tested.

Referring to fig. 2, the angle adjustment assembly 3 includes a rotation block 31, a limit stopper 32, and a dial 33. The rotating block 31 is disposed at the rotating shaft of the turning plate 21 and can rotate along with the turning plate 21, and two ends of the rotating block 31 extend outwards along the radial direction of the rotating shaft. The scale 33 is circular and is disposed adjacent to the rotary block 31, and the scale 33 is coaxial with the rotary block 31. it should be noted that the scale 33 is fixed and does not rotate with the rotation of the flipping plate 21. The limit stopper 32 is provided on the dial 33, the limit stopper 32 is rotatable about the center of the dial 33, and when the rotary block 31 is rotated by a predetermined angle, the end of the rotary block 31 abuts against the limit stopper 32, and the rotation angle of the rotary block 31 can be regulated by regulating the limit stopper 32, thereby regulating the rotation angle of the flipping plate 21.

In this embodiment, the number of the limit stoppers 32 is two, and the two limit stoppers 32 can rotate independently, so that the rotation block 31 is limited in both clockwise and counterclockwise directions to limit the rotation angle of the rotation block 31.

In order to facilitate taking and placing of the light guide plate 4, in this embodiment, a taking and placing groove 23 is disposed on one side (i.e., the front side of this embodiment) of the turnover plate 21 away from the positioning assembly 1, and the light guide plate 4 to be tested can be conveniently placed into the positioning assembly 1 through the taking and placing groove 23, and the light guide plate 4 to be tested can be conveniently taken out from the positioning assembly 1.

In this embodiment, locating component 1's top is equipped with eye-protecting cover plate 13, and eye-protecting cover plate 13 can shelter from locating component 1's top, and the piece when avoiding light guide plate 4 fracture splashes, plays protection tester's effect.

In the description of the present invention, it is to be understood that terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, which indicate orientations or positional relationships, are used based on the orientations or positional relationships shown in the drawings only for the convenience of describing the present invention and for the simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

While the utility model has been described in conjunction with the specific embodiments set forth above, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, it is intended to embrace all such alternatives, modifications, and variations that fall within the spirit and scope of the appended claims.

Claims

1. A flexibility test fixture for a light guide plate is characterized by comprising a positioning component for positioning the light guide plate, a rotating component for driving the light guide plate to partially rotate and an angle adjusting component for adjusting the rotating angle of the light guide plate; the rotating assembly and the positioning assembly are arranged adjacently, the rotating assembly comprises a turnover plate and a rotary driving piece, the turnover plate is arranged in a rotating mode, and the output end of the rotary driving piece is connected with the turnover plate.

2. The jig for testing flexibility of a light guide plate according to claim 1, wherein the positioning assembly includes a bottom plate and a pressing plate disposed opposite to each other, and a gap for inserting the light guide plate is formed between the bottom plate and the pressing plate.

3. The light guide plate flexibility test fixture according to claim 1, wherein the angle adjusting assembly includes a rotation block, a limit stop, and a dial, the rotation block is disposed on a rotation shaft of the flip plate and can rotate along with the flip plate, the dial is disposed adjacent to the rotation block, the limit stop is disposed on the dial, and the limit stop can rotate around a center of the dial.

4. The jig for testing flexibility of a light guide plate according to claim 3, wherein the number of the limit stoppers is two, and the two limit stoppers can rotate independently.

5. The jig for testing flexibility of a light guide plate according to claim 3, wherein a pick-and-place groove is formed in a side of the turnover plate away from the positioning assembly.

6. The jig for testing flexibility of a light guide plate according to claim 1, wherein an eye-protecting cover plate is disposed above the positioning member.