An adhesive-bonded optical fiber strength testing device and method

Abstract

The application belongs to the technical field of optical fibers, and discloses an adhesive-bonded optical fiber strength testing device and a testing method. The adhesive-bonded optical fiber strength testing device comprises a force measuring structure, a first base and a second base. The force measuring structure is connected to the first base and can move synchronously with the first base. The first base can move relatively close to or away from the second base along a first direction. A substrate is arranged on each of the first base and the second base. The substrate is provided with an adhesive block having an adhesive plane. By arranging two adhesive planes, both ends of the optical fiber can be fixed on the adhesive planes by the adhesive during testing. The first base moves away from the second base. When any end of the optical fiber is separated from the adhesive, the reading of the force measuring structure is the shearing tension between the adhesive and the optical fiber. Compared with the prior art, the optical fiber can be prevented from being damaged during testing. Moreover, the length of the optical fiber can be set according to actual needs, thereby avoiding waste of the optical fiber.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of optical fibers, and particularly relates to an adhesive bonding optical fiber strength testing device and a testing method. BACKGROUND

[0002] The standard testing method for adhesive tensile shear strength is specified in detail in the national standard GB / T 7124-2008. According to the standard, there are different specific application testing methods, and most of the testing methods are to use adhesive to bond between rigid materials of a certain size.

[0003] Currently, there are mainly two methods for testing the shear tension between the adhesive and the optical fiber. One method is to clamp one end of the optical fiber with a clamp and fix the other end on a base plate with adhesive. The base plate is moved by pulling the tension meter, and when the optical fiber and the adhesive fall off, the reading of the tension meter is the shear tension between the adhesive and the optical fiber. However, this method has high requirements for the clamping of the optical fiber, and the optical fiber is easy to fall off or be damaged during the testing process. Another method is to fix one end of the optical fiber on the base plate with a glue machine, and to wrap the other end of the optical fiber around the disc for multiple turns to increase the friction between the optical fiber and the disc. The base plate or the disc is fixed with the tension meter, and the tension meter is pulled until the adhesive and the optical fiber fall off. However, this method requires a long optical fiber and is easy to cause damage to the optical fiber.

[0004] Therefore, there is an urgent need for an adhesive bonding optical fiber strength testing device and a testing method to solve the above technical problems. SUMMARY

[0005] In view of the deficiencies in the prior art, the purpose of the present application is to provide an adhesive bonding optical fiber strength testing device and a testing method, which can test the shear tension between the optical fiber and the adhesive and avoid damage to the optical fiber.

[0006] To achieve the above purpose, the present application provides an adhesive bonding optical fiber strength testing device, which comprises a force measuring structure, a first base and a second base. The force measuring structure is connected to the first base and can move synchronously with the first base. The first base can move relatively close to or away from the second base along a first direction.

[0007] The first base and the second base are each provided with a base plate, and the base plate is provided with an adhesive block having an adhesive plane.

[0008] As a preferred technical solution of the adhesive bonding optical fiber strength testing device, the adhesive block has an adhesive protrusion, and the adhesive protrusion has the adhesive plane.

[0009] As a preferred technical solution for an adhesive bonding optical fiber strength testing device, a cover plate is provided on the substrate, one end of the cover plate is rotatably connected to the substrate, and the other end is detachably connected to the substrate, and the cover plate is configured to press against the adhesive block;

[0010] In the first direction, there is a gap between the cover plate and the adhesive protrusion.

[0011] As a preferred technical solution of an adhesive bonding optical fiber strength testing device, in the second direction, two first limiting protrusions are arranged opposite to each other on the substrate, the adhesive block is limited between the two first limiting protrusions, one end of the cover plate is rotatably connected to one of the first limiting protrusions, and the other end is detachably connected to the other first limiting protrusion.

[0012] The second direction forms a preset angle with the first direction.

[0013] As a preferred technical solution for an adhesive bonding optical fiber strength testing device, the substrate is further provided with a second limiting protrusion, and the adhesive block abuts against the second limiting protrusion in the first direction.

[0014] As a preferred technical solution for an adhesive-bonded optical fiber strength testing device, the adhesive-bonded optical fiber strength testing device further includes a support structure, the support structure including two parallel guide members, the guide members extending along the first direction, the first base slidably disposed on the guide members, and the second base fixedly disposed relative to the guide members.

[0015] As a preferred technical solution for an adhesive-bonded optical fiber strength testing device, the adhesive-bonded optical fiber strength testing device further includes a third base, the first base is located between the second base and the third base, the force measuring structure is disposed on the third base, and the third base is slidably disposed on the guide member.

[0016] As a preferred technical solution for an adhesive bonding optical fiber strength testing device, the support structure further includes two brackets, with the two ends of the guide member respectively connected to the two brackets, and the second base connected to one of the brackets.

[0017] As a preferred technical solution for an adhesive bonding fiber strength testing device, the adhesive bonding fiber strength testing device further includes a driving structure, which is connected to the first base and is configured to drive the first base to move along the first direction.

[0018] This application also provides a method for testing the strength of adhesive-bonded optical fibers, applicable to any of the above-mentioned adhesive-bonded optical fiber strength testing devices, wherein the method for testing the strength of adhesive-bonded optical fibers includes:

[0019] S1. Place both ends of the optical fiber on the bonding plane of the two bonding blocks respectively, and fix them with adhesive;

[0020] S2, causing the first base to move away from the second base in the first direction until one end of the optical fiber detaches from the adhesive;

[0021] S3. Record the readings of the force measuring structure.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] This adhesive-bonded optical fiber strength testing device, by setting two bonding planes, can fix both ends of the optical fiber to the bonding planes with adhesive during testing, so that the first base is relatively far away from the second base. When either end of the optical fiber detaches from the adhesive, the reading of the force measuring structure is recorded as the shear tension between the adhesive and the optical fiber. This can avoid damage to the optical fiber during testing, and the length of the optical fiber can be set according to actual needs, avoiding waste of optical fiber. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the adhesive bonding optical fiber strength testing device provided in this embodiment;

[0025] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0026] Figure 3 This is a side view schematic diagram of the adhesive bonding optical fiber strength testing device provided in this embodiment.

[0027] in:

[0028] 1. Force measuring structure; 2. First base; 3. Second base; 4. Base plate; 41. Cover plate; 42. First limiting protrusion; 43. Second limiting protrusion; 5. Adhesive block; 51. Adhesive protrusion; 511. Adhesive plane; 6. Support structure; 61. Guide component; 62. Bracket; 7. Third base; 8. Drive structure; 81. Rocker wheel; 82. Screw. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0033] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0036] like Figures 1 to 3 As shown, this embodiment provides a device for testing the strength of adhesive-bonded optical fibers, mainly used to test the shear tensile force between the adhesive used for bonding optical fibers and the optical fiber. The device includes a force-measuring structure 1, a first base 2, and a second base 3. The force-measuring structure 1 is connected to the first base 2 and can move synchronously with the first base 2. The first base 2 can move relatively closer to or further away from the second base 3 along a first direction. Both the first base 2 and the second base 3 are provided with a base plate 4, and an adhesive block 5 with an adhesive plane 511 is provided on the base plate 4.

[0037] Understandably, by setting two bonding planes 511, both ends of the optical fiber 10 can be fixed to the bonding planes 511 with adhesive during testing, so that the first base 2 is relatively far away from the second base 3. When either end of the optical fiber 10 is separated from the adhesive, the reading of the force measuring structure 3 is recorded as the shear tension between the adhesive and the optical fiber 10. Compared with the prior art, this can avoid damage to the optical fiber 10 during testing, and the length of the optical fiber 10 can be set according to actual needs, avoiding waste of the optical fiber 10.

[0038] In addition, by setting the bonding plane 511, the adhesive will not easily spread under the surface tension of the liquid adhesive before the adhesive cures. The adhesive will flow along the surface of the optical fiber 10 until it is fully covered, which can better control the dispensing length between the optical fiber 10 and the adhesive.

[0039] Reference Figure 2 The adhesive block 5 has an adhesive protrusion 51, and the adhesive protrusion 51 has the aforementioned adhesive plane 511. This configuration facilitates the placement and dispensing of the optical fiber 10.

[0040] Furthermore, a cover plate 41 is provided on the substrate 4. One end of the cover plate 41 is rotatably connected to the substrate 4, and the other end is detachably connected to the substrate 4. The cover plate 41 is used to press against the adhesive block 5. In the first direction, there is a gap between the cover plate 41 and the adhesive protrusion 51.

[0041] Understandably, the adhesive block 5 is pressed against the substrate 4 by the cover plate 41 to stabilize the adhesive block 5. Furthermore, there is a gap between the cover plate 41 and the adhesive protrusion 51, meaning that the cover plate 41 does not cover the adhesive protrusion 51, facilitating the dispensing of adhesive onto the optical fiber 10. In addition, during testing, the optical fiber 10 is subjected to tensile force, resulting in greater force on the end of the substrate 4 closest to the optical fiber 10. This can easily cause the substrate 10 to tilt at a certain angle, leading to testing errors. The cover plate 41 increases the weight of the end of the substrate 4 furthest from the optical fiber 10, thereby preventing the substrate 4 from tilting and improving testing accuracy.

[0042] It should be noted that the two substrates 4 are detachably connected to the first base 2 and the second base 3, respectively. Specifically, in this embodiment, the substrates 4 are fixed by bolts. Of course, in other embodiments, other detachable methods such as snap-fit ​​can be used for fixing, or welding can be used for fixing and connection.

[0043] Refer again Figure 2 In the second direction, two first limiting protrusions 42 are arranged opposite to each other on the substrate 4, the adhesive block 5 is limited between the two first limiting protrusions 42, one end of the cover plate 41 is rotatably connected to one of the first limiting protrusions 42, and the other end is detachably connected to the other first limiting protrusion 42, and the second direction forms a preset angle with the first direction.

[0044] Specifically, in this embodiment, the first direction is perpendicular to the second direction, and the first direction is as follows: Figure 1 In the direction of ab, the second direction is as follows: Figure 2 The cd direction in the middle.

[0045] Furthermore, a second limiting protrusion 43 is also provided on the substrate 4, and the adhesive block 5 abuts against the second limiting protrusion 43 in the first direction. Specifically, each second limiting protrusion 43 is located at the end of the corresponding substrate 4 near the other substrate 4, so that when the optical fiber 10 is under tension, the second limiting protrusion 43 can limit the corresponding adhesive block 5 in the first direction.

[0046] It is understandable that the cover plate 41 presses the adhesive block against the substrate 4, and the first limiting protrusion 42 and the second limiting protrusion 43 limit the adhesive block 5 in two directions respectively, thereby keeping the adhesive block 5 stable and improving the accuracy of the test results.

[0047] Refer again Figure 1The adhesive bonding fiber strength testing device also includes a support structure 6, which includes two parallel guide members 61. The guide members 61 extend along a first direction, the first base 2 is slidably disposed on the guide members 61, and the second base 3 is fixedly disposed relative to the guide members 61.

[0048] Furthermore, the support structure 6 also includes two brackets 62, with the guide member 61 connected to the two brackets 62 at both ends, and the second base 3 connected to one of the brackets 62.

[0049] Reference Figure 3 The adhesive bonding strength testing device for optical fibers also includes a drive structure 8, which is connected to the first base 2 and can drive the first base 2 to move along a first direction. Specifically, in this embodiment, the drive structure 8 includes a rocker wheel 81 and a screw 82 connected to each other, wherein the screw 82 extends along the first direction, the screw 82 is rotatably mounted on two supports 62, and the screw 82 is threadedly connected to the first base 2, so that when the rocker wheel 81 is rotated, the screw 82 rotates, causing the first base 2 to move away from or closer to the second base 3.

[0050] Of course, in other embodiments, the drive structure 8 may also be a cylinder, an electric actuator, or other similar structure.

[0051] Refer again Figure 3 The adhesive bonding strength testing device for optical fibers also includes a third base 7, with the first base 2 located between the second base 3 and the third base 7. The force measuring structure 1 is disposed on the third base 7, which is slidably mounted on the guide member 61. This arrangement ensures that the relative positions of the force measuring structure 2 and the first base 2 remain unchanged during synchronous movement of the force measuring structure 3 and the first base 2, thus improving the accuracy of the test results.

[0052] This embodiment also provides a method for testing the strength of adhesive-bonded optical fibers, applicable to the aforementioned adhesive-bonded optical fiber strength testing device. The method includes:

[0053] S1. Place the two ends of the optical fiber 10 on the bonding plane 511 of the two bonding blocks 5 respectively, and fix them with adhesive.

[0054] S2, causing the first base 2 to move away from the second base 3 in the first direction until one end of the optical fiber 10 detaches from the adhesive;

[0055] S3. Record the reading of the force measuring structure 3.

[0056] This testing method can avoid damage to the optical fiber during the testing process. Moreover, by setting the bonding plane, the adhesive will not easily spread under the surface tension of the liquid adhesive before it cures. The adhesive will flow along the surface of the optical fiber until it is fully covered, which can better control the dispensing length between the optical fiber and the adhesive.

[0057] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A device for testing the strength of adhesive-bonded optical fibers, characterized in that, It includes a force measuring structure (1), a first base (2) and a second base (3). The force measuring structure (1) is connected to the first base (2) and can move synchronously with the first base (2). The first base (2) can move relatively closer to or further away from the second base (3) along a first direction. Both the first base (2) and the second base (3) are provided with a base plate (4), and the base plate (4) is provided with an adhesive block (5) having an adhesive plane (511). The adhesive block (5) has an adhesive protrusion (51), and the adhesive protrusion (51) has the adhesive plane (511). A cover plate (41) is provided on the substrate (4). One end of the cover plate (41) is rotatably connected to the substrate (4), and the other end is detachably connected to the substrate (4). The cover plate (41) is configured to press against the adhesive block (5). In the first direction, there is a gap between the cover plate (41) and the adhesive protrusion (51); In the second direction, two first limiting protrusions (42) are arranged opposite to each other on the substrate (4), the adhesive block (5) is located between the two first limiting protrusions (42), one end of the cover plate (41) is rotatably connected to one of the first limiting protrusions (42), and the other end is detachably connected to the other first limiting protrusion (42). The second direction forms a preset angle with the first direction.

2. The adhesive bonding optical fiber strength testing device according to claim 1, characterized in that, The substrate (4) is also provided with a second limiting protrusion (43), and in the first direction, the adhesive block (5) abuts against the second limiting protrusion (43).

3. The adhesive bonding optical fiber strength testing device according to claim 1, characterized in that, The adhesive bonding fiber strength testing device further includes a support structure (6), which includes two parallel guide members (61). The guide members (61) extend along the first direction, the first base (2) is slidably disposed on the guide members (61), and the second base (3) is fixedly disposed relative to the guide members (61).

4. The adhesive bonding optical fiber strength testing device according to claim 3, characterized in that, The adhesive bonding fiber strength testing device further includes a third base (7), the first base (2) is located between the second base (3) and the third base (7), the force measuring structure (1) is disposed on the third base (7), and the third base (7) is slidably disposed on the guide (61).

5. The adhesive bonding optical fiber strength testing device according to claim 4, characterized in that, The support structure (6) further includes two brackets (62), the two ends of the guide (61) are respectively connected to the two brackets (62), and the second base (3) is connected to one of the brackets (62).

6. The adhesive bonding optical fiber strength testing device according to claim 1, characterized in that, The adhesive bonding fiber strength testing device further includes a driving structure (8), which is connected to the first base (2) and is configured to drive the first base (2) to move along the first direction.

7. A method for testing the strength of optical fiber bonded with adhesive, characterized in that, The adhesive bonding optical fiber strength testing apparatus according to any one of claims 1-6, wherein the adhesive bonding optical fiber strength testing method comprises: S1. Place both ends of the optical fiber on the bonding plane of the two bonding blocks respectively, and fix them with adhesive; S2, causing the first base to move away from the second base in the first direction until one end of the optical fiber detaches from the adhesive; S3. Record the readings of the force measuring structure.

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