Semi-flexible board bending test jig

Abstract

The utility model discloses a bending test jig for a semi-soft board. The bending test jig comprises a base; the bending template is fixedly connected with the base and comprises an arc part, a first positioning wall and a second positioning wall, the arc part is located at the end of the bending template, the radius of the arc part is equal to the bending radius of the semi-soft plate, the first positioning wall and the second positioning wall are oppositely arranged, and the two sides of the arc part are connected with the first positioning wall and the second positioning wall respectively. Under the assistance of the test jig, a tester can stably keep the required bending radius when bending test is carried out on the semi-soft board; moreover, the board surfaces on the two sides of the bending area are tightly attached to the first positioning wall and the second positioning wall respectively, so that the required bending angle can be stably kept when the bending test is carried out on the semi-flexible board. And during measurement, the semi-flexible board can be ensured to be always in a constant bending radius and a constant bending angle, so that a tester can quickly judge the qualification of the bending performance of the semi-flexible board.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board bending processing, in particular to a semi-flexible board bending test jig. Background Art

[0002] The appearance of semi-flex board is similar to that of rigid-flex board, which is divided into hard board area and bending area. The bending area of ​​rigid-flex board is made of soft board material, while the bending area of ​​semi-flex board is originally a part of hard board area. It is just that the thickness is reduced by controlling the depth of the gong, and the hard board material has a certain degree of softness even when the thickness is small, so it can be bent.

[0003] In the related art, the bending of semi-flexible boards can generally only be performed a few times, and after the bending and assembly, they will be fixed and do not need to be bent repeatedly. However, since the bending area of ​​the semi-flexible board is originally a hard board, its bending ability is relatively poor. When large-angle bending is required, the bending radius is comprehensively considered, and there will be higher requirements for the length and thickness of the bending area during production. In some related technologies, after the semi-flexible board is produced, it is necessary to test the bending effect, especially to test whether it can meet the bending radius required by the customer, that is, when bending at the bending radius required by the customer, the bending area will not crack.

[0004] The existing bending test method generally involves bending by hand, and then measuring the bending radius with a caliper. However, direct bending by hand cannot accurately guarantee the bending to the specific angle required by the customer, and the measurement of the bending radius is performed under manual bending. Due to the lack of stability under manual bending, it will cause a large error in the measurement, resulting in inaccurate overall test results, large fluctuations, and poor objectivity. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a semi-soft board bending test jig, which can assist the bending operation of the human hand, improve the stability of the bending, and make the test result more accurate.

[0006] A semi-flexible board bending test jig according to an embodiment of the utility model includes:

[0007] Base;

[0008] A bending template is fixedly connected to the base, and the bending template includes an arc portion, a first positioning wall and a second positioning wall. The arc portion is located at the end of the bending template, and the radius of the arc portion is equal to the bending radius of the semi-flexible board. The first positioning wall and the second positioning wall are arranged opposite to each other, and the two sides of the arc portion are respectively connected to the first positioning wall and the second positioning wall.

[0009] A semi-flexible board bending test jig according to an embodiment of the utility model has at least the following beneficial effects: the tester places the bending zone of the semi-flexible board at the position of the arc portion, and then bends the semi-flexible board so that its bending zone fits the arc portion, ensuring that the semi-flexible board can be stably maintained at the required bending radius when the bending test is performed; and the board surfaces on both sides of the bending zone are respectively close to the first positioning wall and the second positioning wall, ensuring that the semi-flexible board can be stably maintained at the required bending angle when the bending test is performed; for this, the tester no longer needs to measure the bending radius with a caliper, and the semi-flexible board can be ensured to be always at a constant bending radius and bending angle during measurement, so that the tester can directly visually check whether there are cracks, damage, etc. in the bending zone, so as to quickly judge the qualification of the bending performance of the semi-flexible board.

[0010] According to the semi-flexible board bending test jig described in the utility model, the first positioning wall and the second positioning wall are arranged in parallel.

[0011] According to the semi-flexible board bending test jig described in the utility model, the central angle corresponding to the arc portion is 180°.

[0012] According to the semi-flexible board bending test jig described in the utility model, the radius of the arc portion is R, which satisfies: 3mm≤R≤6mm.

[0013] According to the semi-soft board bending test jig of the utility model, the following condition is satisfied: R=5mm.

[0014] According to the semi-flexible board bending test jig described in the utility model, the bending template is protruded upwardly and arranged on the base, the height of the first positioning wall is A, and the length of the semi-flexible board is B, which satisfies: A>0.5*B.

[0015] According to the semi-flexible board bending test jig described in the utility model, the base is square-shaped.

[0016] According to the semi-flexible board bending test jig described in the utility model, the base is integrally connected with the bending template.

[0017] According to the semi-flexible board bending test jig described in the utility model, the base and the bending template are both made of plastic.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 This is a structural schematic diagram of a semi-flexible board bending test jig according to an embodiment of the utility model;

[0021] Figure 2 A first schematic diagram of a bending test using a semi-flexible board bending test jig according to an embodiment of the utility model;

[0022] Figure 3 A second schematic diagram of a bending test performed using a semi-flexible board bending test jig according to an embodiment of the utility model.

[0023] Description of Figure Numbers:

[0024] Base 100;

[0025] Bending template 200; arc portion 201; first positioning wall 202; second positioning wall 203;

[0026] Semi-flexible board 300; bending area 301. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0031] In the description of the utility model, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0032] The appearance of semi-flex board is similar to that of rigid-flex board, which is divided into hard board area and bending area. The bending area of ​​rigid-flex board is made of soft board material, while the bending area of ​​semi-flex board is originally a part of hard board area. It is just that the thickness is reduced by controlling the depth of the gong, and the hard board material has a certain degree of softness even when the thickness is small, so it can be bent.

[0033] In the related art, the bending of semi-flexible boards can generally only be performed a few times, and after the bending and assembly, they will be fixed and do not need to be bent repeatedly. However, since the bending area of ​​the semi-flexible board is originally a hard board, its bending ability is relatively poor. When large-angle bending is required, the bending radius is comprehensively considered, and there will be higher requirements for the length and thickness of the bending area during production. In some related technologies, after the semi-flexible board is produced, it is necessary to test the bending effect, especially to test whether it can meet the bending radius required by the customer, that is, when bending at the bending radius required by the customer, the bending area will not crack.

[0034] The existing bending test method generally involves bending by hand, and then measuring the bending radius with a caliper. However, direct bending by hand cannot accurately guarantee the bending to the specific angle required by the customer, and the measurement of the bending radius is performed under manual bending. Due to the lack of stability under manual bending, it will cause a large error in the measurement, resulting in inaccurate overall test results, large fluctuations, and poor objectivity.

[0035] For this reason, Figures 1 to 3As shown, a semi-flexible board bending test jig proposed by the utility model includes a base 100 and a bending template 200 fixedly connected to the base 100, wherein the bending template 200 includes an arc portion 201, a first positioning wall 202 and a second positioning wall 203, the arc portion 201 is located at the end of the bending template 200, the radius of the arc portion 201 is equal to the bending radius of the semi-flexible board 300, the first positioning wall 202 and the second positioning wall 203 are arranged opposite to each other, and the two sides of the arc portion 201 are respectively connected to the first positioning wall 202 and the second positioning wall 203. It is easy to understand that the base 100 and the bending template 200 form a clear structural framework. This helps to ensure stability and repeatability during the test, and facilitates the standard and consistent bending test of the semi-flexible board 300. It should be noted that the tester places the bending zone 301 of the semi-flexible board 300 at the position of the arc portion 201, and then bends the semi-flexible board 300 so that its bending zone 301 fits the arc portion 201, ensuring that the semi-flexible board 300 can be stably maintained at the required bending radius when the bending test is performed; and the board surfaces on both sides of the bending zone 301 are respectively close to the first positioning wall 202 and the second positioning wall 203, ensuring that the semi-flexible board 300 can be stably maintained at the required bending angle when the bending test is performed; for this, the tester no longer needs to measure the bending radius with a caliper, and the measurement can ensure that the semi-flexible board 300 is always at a constant bending radius and bending angle, so that the tester can directly visually check whether the bending zone 301 has cracks, damage, etc., so as to quickly judge the compliance of the bending performance of the semi-flexible board 300.

[0036] In some applications, the bending angle required for the semi-soft board is 30°, and correspondingly, the first positioning wall and the second positioning wall are arranged obliquely and form an angle of 30° (not shown in the figure). In some applications, the bending angle required for the semi-soft board is 60°, and correspondingly, the first positioning wall and the second positioning wall are arranged obliquely and form an angle of 60° (not shown in the figure). In some applications, the bending angle required for the semi-soft board 300 is 180°, and correspondingly, the first positioning wall 202 and the second positioning wall 203 are arranged in parallel, ensuring that the semi-soft board 300 is evenly stressed on both sides when bending, reducing the risk of deflection or asymmetric bending, and improving the accuracy of the test results. In addition, the central angle corresponding to the arc portion 201 is 180°. Furthermore, the first positioning wall 202 and the second positioning wall 203 are both tangent to the arc portion 201, that is, they are connected to the arc portion 201 in a smooth transition. According to the needs of manufacturing, in some applications, the radius of the arc portion 201 is R, satisfying: 3mm≤R≤6mm. Optionally, R=5mm. It should be noted that the common bending angle is 80° to 180°. For example, an 80° bend is extremely important for flexible circuit boards in certain electronic devices such as smartphones and wearable devices. Depending on different application scenarios, 180° is generally used as the maximum bending angle in conventional applications.

[0037] Refer to Figure 2 and Figure 3 In some embodiments of the utility model, the bending template 200 is protruded upward and is arranged on the base 100. By setting the bending template 200 to be protruded upward, the stability of the contact with the semi-flexible board 300 is increased, and the semi-flexible board 300 is prevented from slipping out or falling off during the bending process, especially when the bending force is applied, better support is provided to avoid edge damage. In addition, the structure of the bending template 200 protruding upward makes the operation of placing and removing the semi-flexible board 300 more intuitive, and the user can easily align the position, reduce the difficulty of operation, and improve the efficiency of the test. In addition, the common bending position is located in the middle of the semi-flexible board 300. For this, the height of the first positioning wall 202 is A, and the length of the semi-flexible board 300 is B, which satisfies: A>0.5*B, which can ensure that the semi-flexible board 300 is smoothly and completely bent.

[0038] In some embodiments of the present invention, Figure 1 As shown, the base 100 is square, providing four uniform support points in four directions. Compared with a circular or other shape, it can be placed more stably on a horizontal plane, and is not easy to tip over or move even when a force is applied to bend it, ensuring the stability of the test process. In addition, the four straight corners are easy to align and position quickly using measuring tools, making it simple and accurate to fix and reset the position of the fixture before and after use, improving the consistency of the test.

[0039] In some embodiments, the base and the bending template are separately provided, and the two are fixed by screws (not shown in the figure). Figure 1 As shown, the base 100 is integrally connected with the bending template 200, the structure is simpler and the use is more convenient. Optionally, the base 100 and the bending template 200 are both plastic parts. For example, the base 100 and the bending template 200 are integrally injection molded, or the base 100 and the bending template 200 are fixedly connected by ultrasonic welding. It should be noted that the hardness of plastic is relatively low, which can reduce the risk of rigid wear of the semi-soft board 300.

[0040] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A semi-flexible board bending test jig, characterized in that: include: Base; A bending template is fixedly connected to the base, and the bending template includes an arc portion, a first positioning wall and a second positioning wall. The arc portion is located at the end of the bending template, and the radius of the arc portion is equal to the bending radius of the semi-flexible board. The first positioning wall and the second positioning wall are arranged opposite to each other, and the two sides of the arc portion are respectively connected to the first positioning wall and the second positioning wall.

2. A semi-flexible board bending test jig according to claim 1, characterized in that: The first positioning wall and the second positioning wall are arranged in parallel.

3. A semi-flexible board bending test jig according to claim 1, characterized in that: The central angle corresponding to the arc portion is 180°.

4. A semi-flexible board bending test jig according to claim 1 or 3, characterized in that: The radius of the arc portion is R, satisfying: 3mm≤R≤6mm.

5. A semi-flexible board bending test jig according to claim 4, characterized in that: Satisfies: R=5mm.

6. The semi-flexible board bending test jig according to claim 1, characterized in that: The bending template is protruded upward and arranged on the base, the height of the first positioning wall is A, the length of the semi-flexible board is B, and the following conditions are satisfied: A>0.5*B.

7. The semi-flexible board bending test jig according to claim 1, characterized in that: The base is square.

8. The semi-flexible board bending test jig according to claim 1, characterized in that: The base is integrally connected to the bending template.

9. A semi-flexible board bending test jig according to claim 8, characterized in that: The base and the bending template are both made of plastic.

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