Fiber cutting device for optical fiber connector

Abstract

The utility model discloses a fiber cutting device for an optical fiber connector, which comprises a cutting seat, an overturning cover is hinged above the cutting seat, a limiting box is fixedly mounted at the top of the cutting seat, a U-shaped clamping seat is slidably connected to an inner cavity of the limiting box, clamping blocks are slidably connected to two sides of an inner cavity of the U-shaped clamping seat, and the U-shaped clamping seat and the clamping blocks are fixedly mounted on the limiting box. An optical fiber cable is clamped between the two clamping blocks, an inner cavity of the limiting box is slidably connected with a limiting plate, one side of the limiting box is provided with a long groove, and one side of the limiting plate is fixedly connected with a screw rod penetrating through the long groove. According to the utility model, an optical fiber cable is clamped through the two clamping blocks, then the limiting plate is moved, the limiting plate drives the screw rod and the indicating plate to move, the position of the limiting plate is determined according to the scale of the indicating plate on the graduated scale, then the nut is tightened to lock the position of the limiting plate, and then the push block is pushed, so that the U-shaped clamping seat moves to be in contact with the limiting plate. And then the cutting machine on the cutting seat completes cutting operation.

Description

Technical Field

[0001] This utility model belongs to the field of optical fiber connector technology, and in particular relates to a fiber cutting device for optical fiber connectors. Background Technology

[0002] Fiber optic quick connectors are widely used for fiber-to-the-home (FTTH) optical connections, and the precision of their fiber cutting is crucial. Excessive fiber cutting leads to excessive fiber microbending, which drastically worsens wavelength insertion loss and return loss. Insufficient fiber cutting results in a gap with the pre-embedded fiber cutting surface, leading to excessive insertion loss during connection.

[0003] The existing optical cable structure consists of an inner layer of optical fiber, an outer layer of which is coated, and then wrapped with a cable sheath to form the optical cable. When splicing optical fibers in the field, the cable sheath needs to be stripped to a certain length to expose bare fibers. Then, it is cut by a special optical fiber cleaver. To facilitate splicing, the bare fibers generally need to be cut to a certain length. Therefore, we designed a fiber cleaver for optical fiber connectors. The optical fiber is clamped by a clamping structure, and with the help of a locking limit plate and an indicator scale, the bare fiber is cut to a certain length after the clamping structure contacts the limit plate, thus ensuring the optical fiber splicing effect. Utility Model Content

[0004] The purpose of this invention is to provide a fiber cutting device for fiber optic connectors, which has the advantages of clamping the fiber optic cable with a clamping structure, cooperating with a locking limit plate and an indicator scale, and completing the fixed-length cutting of the bare fiber after the moving clamping structure contacts the limit plate, thus ensuring the fiber optic splicing effect and solving the above-mentioned technical problems.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A fiber cutting device for fiber optic connectors includes a cutting seat, a flip cover hinged to the top of the cutting seat, a limiting box fixedly installed on the top of the cutting seat, a U-shaped clamp slidably connected to the inner cavity of the limiting box, clamping blocks slidably connected to both sides of the inner cavity of the U-shaped clamp, an optical fiber wire clamped between the two clamping blocks, a limiting plate slidably connected to the inner cavity of the limiting box, an elongated groove opened on one side of the limiting box, a screw rod passing through the elongated groove fixedly connected to one side of the limiting plate, an indicator plate sleeved on the surface of the screw rod, a scale adapted to the indicator plate embedded and fixedly connected to one side of the limiting box, and a nut threadedly connected to the surface of the screw rod.

[0006] Preferably, a push block is fixedly connected to one side of the U-shaped clamp, and the push block passes through the long groove and extends to the outside of the limiting box.

[0007] Preferably, two symmetrical limiting rods are fixedly connected to the opposite sides of the two clamping blocks. One end of each limiting rod passes through the interior of the U-shaped clamp and is slidably connected to the U-shaped clamp. A spring is fitted on the surface of each limiting rod, and the two ends of the spring contact the inner wall of the clamping block and the U-shaped clamp, respectively.

[0008] Preferably, the top of each of the two clamping blocks on opposite sides is provided with a wedge-shaped surface.

[0009] Preferably, multiple anti-slip strips are provided on the opposite side of the two clamps where they contact the optical fiber.

[0010] The beneficial effects of this utility model are:

[0011] 1. This utility model uses two clamping blocks to hold the optical fiber, then moves the limiting plate, which in turn moves the screw rod and the indicator plate. After determining the position of the limiting plate according to the scale indicated by the indicator plate, the nut is tightened to lock the position of the limiting plate. Then, the push block is pushed so that the U-shaped clamping seat moves to contact the limiting plate. Then, the cutting machine on the cutting seat completes the cutting operation. This achieves the purpose of holding the optical fiber through the clamping structure, cooperating with the locking of the limiting plate and the indicator scale, and completing the fixed-length cutting of the bare fiber after the moving clamping structure contacts the limiting plate, thus ensuring the optical fiber splicing effect.

[0012] 2. With the setting of the wedge-shaped surface, when the optical fiber is installed between the two clamping blocks, the optical fiber contacts the wedge-shaped surface on the clamping block. Pressing the optical fiber downward will cause the two clamping blocks to move in opposite directions, which facilitates the clamping of the optical fiber.

[0013] 3. By setting anti-slip strips, this utility model can increase the friction between the optical fiber and the clamping block, preventing the optical fiber from moving freely and affecting the cutting accuracy. Attached Figure Description

[0014] The advantages of the present invention, as described above and / or in the following detailed description in conjunction with the accompanying drawings, will become clearer and more readily understood. These drawings are merely illustrative and do not limit the scope of the present invention.

[0015] Figure 1 This is a perspective view of one embodiment of the present utility model;

[0016] Figure 2 This is a three-dimensional schematic diagram of the flip-top cover removal state according to an embodiment of the present invention;

[0017] Figure 3 This is a perspective view of a limiting box according to an embodiment of the present utility model;

[0018] Figure 4 This is a three-dimensional schematic diagram of a U-shaped clamp and clamping block according to an embodiment of the present invention.

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 1. Cutting seat, 2. Flip cover, 3. Limiting box, 4. U-shaped clamp, 5. Clamping block, 6. Limiting plate, 7. Long groove, 8. Screw rod, 9. Indicator plate, 10. Scale, 11. Nut, 12. Push block, 13. Limiting rod, 14. Spring, 15. Wedge-shaped surface, 16. Anti-slip strip. Detailed Implementation

[0021] In the following description, embodiments of the fiber cutting device for fiber optic connectors of the present invention will be described with reference to the accompanying drawings.

[0022] Figure 1-4 This invention illustrates a fiber optic connector cutting device according to an embodiment of the present invention. It includes a cutting base 1, a hinged flip cover 2 on the top of the cutting base 1, a limiting box 3 fixedly mounted on the top of the cutting base 1, a U-shaped clamp 4 slidably connected to the inner cavity of the limiting box 3, clamping blocks 5 slidably connected to both sides of the inner cavity of the U-shaped clamp 4, and an optical fiber clamped between the two clamping blocks 5. Two symmetrical limiting rods 13 are fixedly connected to the opposite sides of the two clamping blocks 5. One end of each limiting rod 13 penetrates into the interior of the U-shaped clamp 4 and slidably connects to it. A spring 14 is fitted onto the surface of the limiting rod 13, with both ends of the spring 14 contacting the inner walls of the clamping blocks 5 and the U-shaped clamp 4, respectively. A limiting plate 6 is slidably connected to the inner cavity of the limiting box 3, a long groove 7 is formed on one side of the limiting box 3, and wedge-shaped surfaces 15 are provided on the top of the opposite sides of the two clamping blocks 5. With the wedge-shaped surface 15, when the optical fiber is installed between the two clamping blocks 5, the optical fiber contacts the wedge-shaped surface 15 on the clamping block 5. Pressing the optical fiber downward will cause the two clamping blocks 5 to move in opposite directions, which facilitates the clamping of the optical fiber. A screw rod 8 passing through the long groove 7 is fixedly connected to one side of the limiting plate 6. A push block 12 is fixedly connected to one side of the U-shaped clamping seat 4. The push block 12 passes through the long groove 7 and extends to the outside of the limiting box 3. An indicator plate 9 is sleeved on the surface of the screw rod 8. A scale 10 that matches the indicator plate 9 is embedded and fixedly connected to one side of the limiting box 3. A nut 11 is threadedly connected to the surface of the screw rod 8. Multiple anti-slip strips 16 are provided at the position where the optical fiber contacts the opposite side of the two clamping blocks 5. The anti-slip strips 16 can increase the friction between the optical fiber and the clamping block 5, and prevent the optical fiber from moving randomly, which would affect the cutting accuracy.

[0023] Working principle: When using this utility model, flip open the flip cover 2, and then move the limiting plate 6 as needed. The limiting plate 6 will drive the screw rod 8 and the indicator plate 9 to move. After determining the position of the limiting plate 6 according to the scale on the scale 10 indicated by the indicator plate 9, tighten the nut 11 to lock the position of the limiting plate 6. Then pick up the stripped optical fiber and place it between the two clamping blocks 5. During this period, the two clamping blocks 5 will clamp the optical fiber due to the restoring force of the spring 14. Pull the optical fiber outward so that the unstripped part of the clamping block 5 is aligned with the side of the U-shaped clamping seat 4. Then push the push block 12 so that the U-shaped clamping seat 4, clamping blocks 5 and optical fiber move to contact the limiting plate 6, and put the flip cover 2 on top of the cutting seat 1. Then the cutting machine on the cutting seat 1 completes the cutting operation to achieve fixed-length cutting.

[0024] In summary, this fiber optic connector cutting device uses two clamping blocks 5 to hold the fiber optic cable. Then, the limiting plate 6 is moved, which in turn moves the screw rod 8 and the indicator plate 9. Based on the scale indicated by the indicator plate 9 on the ruler 10, the position of the limiting plate 6 is determined, and the nut 11 is tightened to lock the position of the limiting plate 6. Next, the push block 12 is pushed, causing the U-shaped clamping seat 4 to move and contact the limiting plate 6. Then, the cutting machine on the cutting seat 1 completes the cutting operation. This achieves the goal of using a clamping structure to hold the fiber optic cable, coordinating with the locking of the limiting plate and the indicator scale, and moving the clamping structure to contact the limiting plate to complete the fixed-length cutting of the bare fiber, ensuring the fiber optic splicing effect.

Claims

1. A fiber cleaving device for a fiber optic connector, comprising: The utility model provides cutting seat (1), the top of cutting seat (1) is articulated with turnover cover (2), the top of cutting seat (1) is fixedly installed with limiting box (3), the inner chamber of limiting box (3) is slidably connected with U -shaped clamp seat (4), both sides of U -shaped clamp seat (4) inner chamber are slidably connected with clamping block (5), and the optical fiber wire is clamped between two clamping blocks (5), the inner chamber of limiting box (3) is slidably connected with limiting plate (6), one side of limiting box (3) is provided with long slot (7), one side of limiting plate (6) is fixedly connected with screw rod (8) passing through long slot (7), the surface of screw rod (8) is equipped with indicating board (9), one side of limiting box (3) is embeddedly fixedly connected with scale (10) matched with indicating board (9), and the surface of screw rod (8) is threadedly connected with screw cap (11).

2. A cleaver for fiber optic connectors as defined in claim 1, wherein, One side of U -shaped clamp seat (4) is fixedly connected with push block (12), push block (12) passes through long slot (7) and extends to the outside of limiting box (3).

3. A cleaver for a fiber optic connector as in claim 2, wherein, The opposite side of two clamping blocks (5) is fixedly connected with two symmetrical limiting rods (13), one end of limiting rod (13) penetrates to the inside of U -shaped clamp seat (4) and is slidably connected with U -shaped clamp seat (4), and the surface of limiting rod (13) is equipped with spring (14), and both ends of spring (14) are in contact with the inner wall of clamping block (5) and U -shaped clamp seat (4) respectively.

4. A cleaver for fiber optic connectors as defined in claim 3, wherein, The top of the opposite side of two clamping blocks (5) is provided with wedge surface (15).

5. A cleaver for a fiber optic connector as recited in claim 4, wherein, The position of the opposite side of two clamping blocks (5) and the optical fiber wire is provided with multiple anti -skid strips (16).

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