A clamping assembly for testing the peel force of optical fiber coating

Abstract

This utility model provides a clamping assembly for testing the peel force of optical fiber coatings. It relates to the field of material adhesion testing technology. The clamping assembly includes a single-column tensile testing machine. A lower clamp and an upper clamp are fixedly mounted on the single-column tensile testing machine. A mounting block is fitted onto the lower clamp. Two support frames are fixedly mounted between the inner walls of both sides of the mounting block, and both support frames are in contact with the lower clamp. Two rectangular blocks are fixedly mounted on one side of the mounting block. A threaded sleeve is rotatably mounted between the two rectangular blocks. Two threaded rods are threaded onto the threaded sleeve. Connecting arms are fixedly mounted at the ends of the two threaded rods that are far apart from each other. Adapter blocks are fixedly mounted on the tops of the two connecting arms. This utility model has the advantages of being able to calibrate the center lines of the lower clamp and the upper clamp, reducing coaxiality errors between them, and being quick and convenient to operate.

Description

Technical Field

[0001] This utility model relates to the field of material adhesion testing technology, specifically a clamping component for testing the peel force of optical fiber coating. Background Technology

[0002] Optical fiber is a technology that uses light to transmit information through glass or plastic fibers. It has the advantages of high bandwidth, low loss, and resistance to electromagnetic interference, and is widely used in communication, medical, and sensing fields. During the manufacturing process of optical fiber, in order to protect the optical fiber from environmental factors and improve its mechanical strength, one or more protective coatings are usually coated on the surface of the optical fiber. However, these coatings need to be partially or completely peeled off during the subsequent use and processing of the optical fiber. In order to understand how much force is required to peel off the coating on the surface of the optical fiber and to understand the adhesion effect of the coating, it is usually necessary to use this single-column tensile testing machine to test the peel force of the optical fiber coating, that is, to test the tensile strength, compressive strength, and elongation of the optical fiber coating to obtain accurate data.

[0003] Traditionally, depending on the test content, the corresponding components on the single-column tensile testing machine need to be changed in real time. When peel force testing is required, the upper and lower clamps need to be fixed on the single-column tensile testing machine to fix the test object. Deviations in the installation of the upper and lower clamps are difficult to avoid, which can easily lead to coaxiality errors between the two clamps. This will affect the alignment of the test object with the center line of the two clamps, and thus affect the accuracy of the tensile displacement and strength measurement of the coating layer.

[0004] Therefore, it is necessary to provide a new clamping assembly for testing the peel force of optical fiber coatings to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a clamping assembly for testing the peel force of optical fiber coating that can calibrate the center line of the lower clamp and reduce the coaxiality error between them, and is quick and convenient to operate.

[0006] To solve the above-mentioned technical problems, the clamping assembly for testing the peel force of optical fiber coating provided by this utility model includes: a single-column tensile testing machine, on which a lower clamp and an upper clamp are fixedly installed. A fitting block is fitted on the lower clamp. Two support frames are fixedly installed between the inner walls of the two sides of the fitting block, and both support frames are in contact with the lower clamp. Two rectangular blocks are fixedly installed on one side of the fitting block. A threaded sleeve is rotatably installed between the two rectangular blocks. Two threaded rods are threadedly installed on the threaded sleeve. Connecting arms are fixedly installed at the ends of the two threaded rods that are far apart from each other. Adapter blocks are fixedly installed on the tops of the two connecting arms. Each block is rotatably mounted with a hinge rod. Four mounting blocks are fixedly mounted on the top of the set block. Two adjustment frames are rotatably mounted between the four mounting blocks. Vertical plates are fixedly mounted on the bottom inner walls of the two adjustment frames. The two vertical plates are rotatably connected to the two hinge rods at their respective close ends. Two limiting plates are fixedly mounted on the two adjustment frames. The two limiting plates are adapted to the upper clamp. Four square blocks are fixedly mounted on the bottom of the set block. Adjustment rods are rotatably mounted on each of the four square blocks. Torsion springs are sleeved on each of the four adjustment rods. Two rotating frames are fixedly mounted between the four adjustment rods. Rotating rollers are rotatably sleeved on each of the two rotating frames.

[0007] Preferably, a horizontal bar is fixedly installed on both sides of the assembly block, and the two horizontal bars are slidably connected to the two connecting arms respectively. An anti-detachment block is fixedly installed at the ends of the two horizontal bars that are far apart from each other.

[0008] Preferably, two connecting rods are fixedly installed between the four mounting blocks, and the two adjusting frames are respectively rotatably sleeved on the two connecting rods.

[0009] Preferably, a limiting block is fixedly installed at the end of each of the four adapter rods away from the two rotating frames, and the four limiting blocks respectively make rotational contact with the corresponding square blocks.

[0010] Preferably, each of the two vertical plates has a recessed groove at its top, and a connecting rod is fixedly installed between the inner walls of the two recessed grooves on both sides. The two hinged rods are respectively rotatably sleeved on the two connecting rods.

[0011] Preferably, protective pads are fixedly installed on all four limiting plates, and all four protective pads are in contact with the upper clamp.

[0012] Compared with related technologies, the clamping assembly for testing the peel force of optical fiber coating provided by this utility model has the following advantages:

[0013] This utility model achieves synchronous displacement of the two connecting arms through the linkage design of the threaded sleeve and two threaded rods, which pushes the adjustment frame to accurately adjust the position of the upper chuck, effectively reducing the coaxiality error of the two chucks. The L-shaped fit monitoring design of the limit plate and the adjustment frame can intuitively determine whether the two chucks are on the same center line, effectively calibrating the coaxiality of the lower and upper chucks. The assembly block, supported by two support frames, and combined with the combination structure of the adapter rod, torsion spring and rotating roller, achieves quick unlocking and greatly improves disassembly efficiency. Attached Figure Description

[0014] Figure 1 This is a front view structural diagram of the present utility model;

[0015] Figure 2 for Figure 1 Enlarged schematic diagram of the lower and upper chucks shown;

[0016] Figure 3 for Figure 2 A partially enlarged schematic diagram of the lower and upper chucks shown in the diagram;

[0017] Figure 4 This is a side view of the structure of this utility model;

[0018] Figure 5 for Figure 4 An enlarged schematic diagram of the lower furniture shown in the image;

[0019] Figure 6 This is a top sectional view of the assembly block in this utility model;

[0020] Figure 7 This is a side sectional view of the present invention.

[0021] In the diagram: 1. Single-column tensile testing machine; 2. Lower clamp; 3. Upper clamp; 4. Assembly block; 5. Rectangular block; 6. Threaded sleeve; 7. Threaded rod; 8. Connecting arm; 9. Adapter block; 10. Hinge rod; 11. Mounting block; 12. Adjustment frame; 13. Vertical plate; 14. Limiting plate; 15. Square block; 16. Adapter rod; 17. Torsion spring; 18. Rotating frame; 19. Rotating roller; 20. Support frame. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please refer to the following: Figures 1-7 ,in, Figure 1 This is a front view structural diagram of the present utility model; Figure 2 for Figure 1 Enlarged schematic diagram of the lower and upper chucks shown; Figure 3 for Figure 2A partially enlarged schematic diagram of the lower and upper chucks shown in the diagram; Figure 4 This is a side view of the structure of this utility model; Figure 5 for Figure 4 An enlarged schematic diagram of the lower furniture shown in the image; Figure 6 This is a top sectional view of the assembly block in this utility model; Figure 7 This is a side sectional view of the present invention. The clamping assembly for testing the peel force of optical fiber coating includes: a single-column tensile testing machine 1, on which a lower clamp 2 and an upper clamp 3 are fixedly mounted. The upper clamp 3 and the lower clamp 2 are adapted to each other. A mounting block 4 is fitted onto the lower clamp 2. The mounting block 4 does not contact the lower clamp 2. Two support frames 20 are fixedly installed between the inner walls of the two sides of the mounting block 4. Both support frames 20 are Z-shaped and can support the mounting block 4. Both support frames 20 are in contact with the top of the lower clamp 2. Two rectangular blocks 5 are fixedly installed on the same side of the mounting block 4. A threaded sleeve 6 is rotatably mounted on the sleeve. The inner wall of the threaded sleeve 6 has two sections of internal threads with opposite directions of rotation. Two threaded rods 7 are threaded onto the threaded sleeve 6, with their threads also having opposite directions of rotation. The two threaded rods 7 mesh with the two sections of internal threads respectively. The ends of the two threaded rods 7 that are far apart from each other extend outside the threaded sleeve 6, and connecting arms 8 are fixedly mounted on both ends extending outwards. A transition block 9 is fixedly mounted on the top of each of the two connecting arms 8, and a hinge rod 10 is rotatably mounted on each of the two transition blocks 9. The top of the sleeve block 4 is fixed... Four mounting blocks 11 are installed in a rectangular array. Two connecting rods are fixedly installed between the four mounting blocks 11. A rotatable adjustment frame 12 is rotatably mounted on each of the two connecting rods. The two adjustment frames 12 are located on both sides of the upper clamp 3. A vertical plate 13 is fixedly installed on the bottom inner wall of each of the two adjustment frames 12. A recessed groove is formed at the top of each of the two vertical plates 13. A connecting rod is fixedly installed between the inner walls of the two recessed grooves. The two connecting rods are rotatably connected to the adjacent ends of the two hinge rods 10. Two connecting rods are fixedly mounted on each of the two adjustment frames 12. The four limiting plates 14 are L-shaped. Two of the limiting plates 14 are adapted to and in contact with the upper clamp 3. Four square blocks 15 are fixedly installed at the bottom of the mounting block 4. Each of the four square blocks 15 is rotatably mounted with a connecting rod 16. Each of the four connecting rods 16 is fitted with a torsion spring 17. The two ends of the four torsion springs 17 are fixedly connected to the corresponding square block 15 and the rotating frame 18 mentioned below. Two rotating frames 18 are fixedly installed between the four connecting rods 16. Each of the two rotating frames 18 is rotatably fitted with a rotating roller 19. Both rotating rollers 19 are in contact with the lower clamp 2.

[0024] In order to restrict the movement direction of the two connecting arms 8 and prevent the two threaded rods 7 from disengaging from the threaded sleeve 6, in this method, transverse rods are fixedly installed on both sides of the sleeve block 4, and the two transverse rods are slidably connected to the two connecting arms 8 respectively. Anti-disengagement blocks are fixedly installed at the ends of the two transverse rods that are far apart from each other.

[0025] To prevent the four adapter rods 16 from falling off the four square blocks 15, in this method, a limit block is fixedly installed at the end of each of the four adapter rods 16 away from the two rotating frames 18. The four limit blocks are in rotational contact with the corresponding square blocks 15. Protective pads are fixedly installed on each of the four limit plates 14. The four protective pads are in contact with the upper chuck 3. The four protective pads can protect the upper chuck 3.

[0026] The working principle of the clamping assembly for testing the peel force of optical fiber coating provided by this utility model is as follows:

[0027] In the initial state, the mounting block 4 is mounted on the lower chuck 2, and both threaded rods 7 are extended. First, fix the lower chuck 2 on the single-column tensile testing machine 1, and then gradually install the upper chuck 3. The upper chuck 3 is kept at 70% tightening. Then, rotate the threaded sleeve 6, and the two threaded rods 7 will move into the threaded sleeve 6 at the same time. The two threaded rods 7 drive the two connecting arms 8 to approach the mounting block 4, pushing the two tilted adjustment frames 12 to gradually stand up and move towards the upper chuck 3 until the two adjustment frames 12 are in a vertical state. The two adjustment frames 12 will contact the two sides of the upper chuck 3 respectively. Observe whether the two adjustment frames 12 and the four limiting plates 14 are in contact with the upper chuck 3. If they are completely in contact, it means that the upper chuck 3 and the lower chuck 2 are on the same center line and there is no coaxiality error. If they are not in contact, the upper chuck 3 needs to be adjusted until the two adjustment frames 12 and the four limiting plates 14 are all in contact with the upper chuck 3. Then tighten the upper chuck 3.

[0028] After the two clamps are fixed, the single-column tensile testing machine 1 can be used normally. If it is necessary to remove the mounting block 4 from the lower clamp 2, the two rotating frames 18 can be pushed. The two rotating frames 18 drive the two rotating rollers 19 to rotate around the four connecting rods 16. The two rotating rollers 19 will gradually slide away from the bottom of the lower clamp 2. As the two rotating rollers 19 slide away and lose the bottom limit, by maintaining control of the two rotating frames 18, the mounting block 4 can be slid off the lower clamp 2. The operation is convenient and quick, and the subsequent installation is also relatively convenient.

[0029] Compared with related technologies, the clamping assembly for testing the peel force of optical fiber coating provided by this utility model has the following advantages:

[0030] Through the linkage design of the threaded sleeve 6 and the two threaded rods 7, the two connecting arms 8 are moved synchronously, pushing the adjustment frame 12 to accurately adjust the position of the upper chuck 3, effectively reducing the coaxiality error of the two chucks. The L-shaped fit monitoring design of the limit plate 14 and the adjustment frame 12 can intuitively determine whether the two chucks are on the same center line, effectively calibrating the coaxiality of the lower chuck 2 and the upper chuck 3. With the support of the two support frames 20, the assembly block 4, together with the combination structure of the adapter rod 16, torsion spring 17 and rotating roller 19, can quickly unlock and greatly improve the disassembly efficiency.

[0031] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, those skilled in the art who understand the principle of the above utility model can clearly understand the specific details of its power mechanism, power supply system and control system.

[0032] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A clamping assembly for testing the peel force of an optical fiber coating, comprising a single-column tensile testing machine, characterized in that, The single-column tensile testing machine is fixedly equipped with a lower clamp and an upper clamp. A mounting block is fitted onto the lower clamp. Two support frames are fixedly installed between the inner walls of both sides of the mounting block, and both support frames are in contact with the lower clamp. Two rectangular blocks are fixedly installed on one side of the mounting block. A threaded sleeve is rotatably installed between the two rectangular blocks. Two threaded rods are threaded onto the threaded sleeve. Connecting arms are fixedly installed at the ends of the two threaded rods that are far apart from each other. Adapter blocks are fixedly installed on the tops of the two connecting arms. Hinge rods are rotatably installed on the two adapter blocks. The top of the mounting block is fixed... Four mounting blocks are installed, and two adjusting frames are rotatably mounted between the four mounting blocks. Vertical plates are fixedly mounted on the bottom inner walls of the two adjusting frames. The two vertical plates are rotatably connected to the adjacent ends of the two hinge rods. Two limiting plates are fixedly mounted on the two adjusting frames, and the two limiting plates are adapted to the upper clamp. Four square blocks are fixedly mounted on the bottom of the mounting block. Adjusting rods are rotatably mounted on the four square blocks. Torsion springs are sleeved on the four adjusting rods. Two rotating frames are fixedly mounted between the four adjusting rods, and rotating rollers are rotatably sleeved on the two rotating frames.

2. The clamping assembly for testing the peel force of optical fiber coating as described in claim 1, characterized in that, Both sides of the assembly block are fixedly installed with horizontal rods, and the two horizontal rods are slidably connected to the two connecting arms respectively. Anti-detachment blocks are fixedly installed at the ends of the two horizontal rods that are far apart from each other.

3. The clamping assembly for testing the peel force of optical fiber coating as described in claim 1, characterized in that, Two connecting rods are fixedly installed between the four mounting blocks, and the two adjusting frames are respectively rotatably sleeved on the two connecting rods.

4. The clamping assembly for testing the peel force of optical fiber coating as described in claim 1, characterized in that, Each of the four adapter rods has a limiting block fixedly installed at one end away from the two rotating frames, and the four limiting blocks respectively make rotational contact with the corresponding square blocks.

5. The clamping assembly for testing the peel force of optical fiber coating as described in claim 1, characterized in that, The top of each of the two vertical plates is provided with a recessed groove, and a connecting rod is fixedly installed between the inner walls on both sides of the two recessed grooves. The two hinged rods are respectively rotatably sleeved on the two connecting rods.

6. The clamping assembly for testing the peel force of optical fiber coating as described in claim 1, characterized in that, Each of the four limiting plates is fixedly equipped with a protective pad, and all four protective pads are in contact with the upper clamp.

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