A hand-held optical fiber cutting device with adjustable cutting angle

Abstract

The utility model discloses a handheld optical fiber cutting device of adjustable cutting angle, it includes support base and the upper cover of hinged on support base, the optical fiber tray of middle through is rotatably arranged on the upper surface of support base, the optical fiber fixed subassembly of opposite setting has on the optical fiber tray, the through empty slot of middle is seted up in support base, the cutter holder is seted up in the empty slot, is provided with cutting knife on the cutter holder, and cutting knife exposes in the middle through department of optical fiber tray, is provided with the drive assembly of drive optical fiber tray rotation in the support base of empty slot one side, the utility model discloses the optical fiber that will cut places in the optical fiber fixed subassembly on the optical fiber tray, drives optical fiber tray rotation through drive assembly, makes the deflection of the optical fiber that cut in the optical fiber fixed subassembly, and the optical fiber that cut is formed with cutting knife one set's included angle, promotes the cutter holder again, makes cutting knife complete optical fiber cutting.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber cutting technology, specifically to a handheld optical fiber cutting device with an adjustable cutting angle. Background Technology

[0002] Fiber optic cleaving is an operation involved in the fiber optic sensing industry. With the increasing variety of fiber optic sensors, there are more detailed requirements for the fiber optic cleaving end face and cleaving angle. Conventional fiber optic cleavers can only cut a plane perpendicular to the fiber axis, such as the cleaving device described in Chinese Patent (Application No. CN222145273U). Fiber optic cleavers with rotation angles can only use a clamp on one side to fix one end of the fiber, and then twist the other end of the fiber around the fiber axis to a certain angle value before cleaving. After cleaving, the stress in the twisted section of the fiber is released and returns to the initial angle. In this way, the two fiber end faces after cleaving only produce a radial angle difference, but the fiber end faces are still perpendicular to the fiber propagation axis, such as the cleaving device described in Chinese Patent (Application No. CN209280976U).

[0003] The cutting device described above can only be used for optical fibers with non-circular symmetry structures. The fixed radial angle difference cut out can be used to make depolarizers, but it cannot meet the requirements of optical fiber sensors with end-face coupling angle requirements and RL reflection end-face angle requirements. Utility Model Content

[0004] To address the aforementioned problems in the prior art, this utility model provides a handheld fiber optic cleaver with an adjustable cleaving angle, which solves the problem that existing cleavers cannot meet the cleaving requirements with end-face coupling angle requirements.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A handheld fiber optic cleaver with an adjustable cutting angle is provided, comprising a support base and a top cover hinged to the support base. A fiber optic tray with a central through-hole is rotatably disposed on the upper surface of the support base. Fiber optic fixing components are disposed opposite to each other on the fiber optic tray. A through-hole is opened in the middle of the support base, and a blade holder is disposed in the slot. A cleaver is disposed on the blade holder, and the cleaver is exposed at the central through-hole of the fiber optic tray. A drive component for driving the fiber optic tray to rotate is disposed in the support base located on one side of the slot.

[0007] This invention places the optical fiber to be cut inside the optical fiber fixing assembly on the optical fiber tray. The optical fiber tray is driven to rotate by the drive assembly, causing the optical fiber to be cut inside the optical fiber fixing assembly to deflect. This creates a set angle between the optical fiber to be cut and the cutting blade. Then, the blade holder is pushed to make the cutting blade complete the optical fiber cutting.

[0008] Furthermore, the fiber optic fixing assembly includes two fiber optic fixing plates disposed opposite each other on the fiber optic tray, and fiber optic fixing plates are provided with fiber placement slots; a fiber optic slot cover plate is hinged to one side of the fiber optic fixing plate.

[0009] Furthermore, a sliding pressing component that acts on the fiber optic cable tray cover is provided on the inner side of the upper cover;

[0010] The sliding pressing assembly includes multiple sliding placement grooves that are opened on the inner side of the upper cover and connected in a ring, and a slider disposed in the sliding placement groove; the sliding placement groove has a threaded hole, and the slider is fixed by a bolt passing through the slider and inserted into the threaded hole, and a spring is sleeved on the bolt located in the threaded hole.

[0011] Furthermore, a limiting block is provided at the end of the fiber optic trough cover plate, and a fixing groove that matches the limiting block is provided on the fiber optic fixing plate, with the limiting block embedded in the fixing groove.

[0012] Furthermore, an installation groove is provided in the middle of the upper surface of the support base, the fiber optic tray is rotatably installed in the installation groove, and the groove edge is provided with a scale.

[0013] Furthermore, the drive assembly includes a knob, which is mounted on a support base on one side of the slot via a knob base. The output end of the knob extending into the support base is provided with a screw, which is meshed with a transmission gear. The transmission gear is meshed with the annular teeth on the lower surface of the fiber optic tray.

[0014] Furthermore, a cutting groove is provided in the middle of the tool holder, a tool holder is provided in the middle of the cutting groove, and a blade placement groove is provided on the tool holder, in which the cutting blade is installed.

[0015] Furthermore, a sliding block is provided on one side of the tool holder, and a sliding groove is provided on the side wall of the empty slot to fit the sliding block, with the sliding block embedded in the sliding groove.

[0016] Furthermore, an optical fiber storage box is installed on the support base located on one side of the empty slot.

[0017] This utility model discloses a handheld fiber optic cutting device with an adjustable cutting angle, the advantages of which are:

[0018] This invention places the optical fiber to be cut inside the optical fiber fixing assembly on the optical fiber tray. The optical fiber tray is driven to rotate by the drive assembly, causing the optical fiber to be cut inside the optical fiber fixing assembly to deflect. This creates a set angle between the optical fiber and the cleaver. Then, the cleaver is pushed to complete the optical fiber cutting. This invention can be used for optical fiber sensors that have requirements for end-face coupling angle and RL reflection end-face angle. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the structure of a handheld fiber optic cutting device with an adjustable cutting angle according to the present invention.

[0020] Figure 2 This is a schematic diagram of the structure of the fiber optic tray of this utility model.

[0021] Figure 3 This is a schematic diagram of the structure of the support base of this utility model.

[0022] Figure 4 This is a schematic diagram of the support base of this utility model from another angle.

[0023] Figure 5 This is a schematic diagram of the drive component of this utility model.

[0024] Figure 6 This is a schematic diagram of the tool holder of this utility model.

[0025] Figure 7 This is a schematic diagram of the tool holder of this utility model from another angle.

[0026] Figure 8 This is a schematic diagram of the structure of the top cover of this utility model.

[0027] The components include: 1. Support base; 11. Empty slot; 12. Mounting slot; 13. Scale; 14. Sliding slot; 2. Top cover; 21. Sliding placement slot; 22. Slider; 23. Threaded hole; 24. Spring; 3. Fiber optic tray; 31. Ring tooth; 4. Blade holder; 41. Cutting slot; 42. Blade holder; 43. Blade placement slot; 44. Sliding block; 5. Cutting blade; 6. Drive assembly; 61. Knob; 62. Knob base; 63. Screw; 64. Transmission gear; 71. Fiber optic fixing plate; 72. Fiber optic placement slot; 73. Fiber optic slot cover; 74. Fixing slot; 8. Fiber optic storage box. Detailed Implementation

[0028] The specific embodiments of this utility model are described below to enable those skilled in the art to understand this utility model. However, it should be understood that this utility model is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of this utility model as defined and determined by the appended claims, these changes are obvious. All utility model creations utilizing the concept of this utility model are within the scope of protection.

[0029] Example 1

[0030] refer to Figures 1-8This embodiment provides a handheld fiber optic cleaver with an adjustable cleaving angle, which aims to solve the problem that existing cleavers cannot meet the cleaving requirements with end-face coupling angle requirements. The specific structure of this embodiment will be described in detail below.

[0031] A handheld fiber optic cutting device with adjustable cutting angle includes a support base 1 and an upper cover 2 hinged to the support base 1.

[0032] Among them, the upper surface of the support base 1 is rotatably provided with a centrally through fiber optic tray 3, and fiber optic fixing components are arranged opposite to each other on the fiber optic tray 3.

[0033] Specifically, a through slot 11 is provided in the middle of the support base 1, a knife holder 4 is provided in the slot 11, a cutting knife 5 is provided on the knife holder 4, and the cutting knife 5 is exposed in the middle through part of the fiber optic tray 3; a drive assembly 6 for driving the fiber optic tray 3 to rotate is provided in the support base 1 located on one side of the slot 11.

[0034] In this embodiment, the optical fiber to be cut is placed in the optical fiber fixing assembly on the optical fiber tray 3. The optical fiber tray 3 is driven to rotate by the driving assembly 6, causing the optical fiber to be cut fixed in the optical fiber fixing assembly to deflect. Thus, the optical fiber to be cut and the cutting blade 5 form a set angle. Then, the blade holder 4 is pushed so that the cutting blade 5 completes the optical fiber cutting. This can meet the requirements of optical fiber sensors with end face coupling angle requirements and RL reflection end face angle requirements.

[0035] Specifically, the fiber optic fixing assembly includes two fiber optic fixing plates 71 that are disposed opposite each other on the fiber optic tray 3, and fiber optic fixing plates 71 have fiber optic placement slots 72; a fiber optic slot cover plate 73 is hinged to one side of the fiber optic fixing plate 71.

[0036] In this embodiment, the fiber optic tray 3 is through the middle, and two blocks are arranged opposite each other at the through the middle. Each block is attached to a fiber optic fixing plate 71, so that the fiber to be cut is embedded in the fiber placement groove 72 on the fiber optic fixing plate 71. The fiber to be cut is fixed by flipping the fiber groove cover plate 73, and then the fiber to be cut is fixed between the two fiber optic fixing plates 71.

[0037] Specifically, the inner side of the upper cover 2 is provided with a sliding pressing assembly that acts on the fiber optic channel cover plate 73; the sliding pressing assembly includes multiple sliding placement grooves 21 that are opened on the inner side of the upper cover 2 and connected in a ring and a slider 22 that is set in the sliding placement groove 21; a threaded hole 23 is opened in the sliding placement groove 21, and the slider 22 is fixed by a bolt passing through the slider 22 and inserted into the threaded hole 23, and a spring 24 is sleeved on the bolt located in the threaded hole 23.

[0038] In this embodiment, multiple sliding placement slots 21 are provided on the inner side of the upper cover 2. The multiple sliding placement slots 21 are connected in a ring. In each sliding placement slot 21, a bolt passes through the slider 22 and is inserted into the threaded hole 23 in the middle of the sliding placement slot 21, thereby fixing the slider 22 in the sliding placement slot 21. The threaded hole 23 is a T-shaped hole. A spring 24 is sleeved on the bolt in the threaded hole 23. The bolt leaves room for the slider 22 to rebound. When the upper cover 2 is flipped, the slider 22 contacts the fiber optic slot cover plate 73 to squeeze the spring 24. The spring 24 pushes up the slider 22 based on the restoring force, thereby squeezing the fiber optic slot cover plate 73 in the opposite direction, and further fixing the fiber to be cut.

[0039] Optionally, the inner wall of the sliding placement groove 21, the outer wall of the slider 22, and the threaded hole 23 are all inclined to the middle of the upper cover 2. So when the upper cover 2 is flipped over, the slider 22 contacts the fiber optic slot cover plate 73 to compress the spring 24. The spring 24 pushes up the slider 22 based on the restoring force, thereby compressing the fiber optic slot cover plate 73 in the opposite direction. The slider 22 slides downward in the sliding placement groove 21, thereby driving the fiber optic slot cover plate 73 to move outward, thereby applying axial tension to the fiber to be cut, and further fixing the fiber to be cut.

[0040] Optionally, a blocking strip that matches the slider 22 can be provided on the fiber optic cable cover plate 73.

[0041] Specifically, a limiting block is provided at the end of the fiber optic trough cover plate 73, and a fixing groove 74 that matches the limiting block is provided on the fiber optic fixing plate 71, with the limiting block embedded in the fixing groove 74.

[0042] In this embodiment, the fiber optic slot cover plate 73 is hinged to one side of the fiber optic fixing plate 71. When the fiber optic slot cover plate 73 is flipped to press and fix the fiber to be cut, the limiting block (not shown) at the end of the fiber optic slot cover plate 73 is embedded in the fixing groove 74. At the same time, the size of the fixing groove 74 can be slightly larger than the limiting block to prevent interference.

[0043] Specifically, an installation groove 12 is provided in the middle of the upper surface of the support base 1, the fiber optic tray 3 is rotatably installed in the installation groove 12, and a scale 13 is provided on the groove edge of the installation groove 12.

[0044] Specifically, the drive assembly 6 includes a knob 61, which is mounted on a support base 1 on one side of the slot 11 via a knob base 62. The output end of the knob 61 extending into the support base 1 is provided with a screw 63, which is meshed with a transmission gear 64. The transmission gear 64 is meshed with the ring teeth 31 on the lower surface of the fiber optic tray 3.

[0045] In this embodiment, an installation groove 12 is formed in the middle of the upper surface of the support base 1. The middle of the installation groove 12 is connected to the empty groove 11 to expose the cutting blade 5. The fiber optic tray 3 can be rotatably set in the installation groove 12 through the existing YRT040 type turntable bearing, so that the fiber optic tray 3 can rotate relative to the support base 1. A scale 13 is provided on the groove edge of the installation groove 12 to indicate the rotation angle of the fiber optic tray 3.

[0046] On one side of the slot 11, a knob 61 is mounted on a support base 1 via a knob base 62. The output end of the knob 61 extends into the support base 1, and a screw 63 is fixedly mounted on the output shaft of the knob 61. A transmission gear 64 is rotatably mounted on one side of the screw 63. The transmission gear 64 is mounted in the support base 1 via a bearing, thereby adjusting the knob 61. The knob 61 and the scale on the knob base 62 form a spiral micrometer structure, which can precisely adjust the required cutting angle. By rotating the knob 61, the knob 61 drives the screw 63, which in turn drives the transmission gear 64 to rotate. The transmission gear 64 then meshes with the annular teeth 31 on the lower surface of the fiber optic tray 3, causing the fiber optic tray 3 to rotate, thereby completing the adjustment of the fiber optic tray 3.

[0047] In this embodiment, the knob 61 can be an existing SR20AL type mechanical micrometer head. One rotation of the screw drives the screw 63 to rotate one rotation, thereby driving the transmission gear 64 to rotate one tooth pitch. The transmission gear 64 has 18 teeth, and the ring tooth 31 has 180 teeth. Therefore, one rotation of the micrometer screw corresponds to a 2° rotation of the fiber optic tray 3. The micrometer drum has 20 equally divided graduations. Therefore, each rotation of a small division (1 / 20 of a revolution) corresponds to a 0.1° rotation of the fiber optic tray 3.

[0048] Specifically, the tool holder 4 has a cutting groove 41 in the middle, the cutting groove 41 has a tool holder 42 in the middle, the tool holder 42 has a placement groove 43, and the cutting blade 5 is installed in the placement groove 43.

[0049] In this embodiment, the cutting blade 5 is installed in the placement groove 43 on the blade holder 42. The blade holder 4 has a cutting groove 41 in the middle for placing the blade holder 42. The cutting blade 5 can be easily replaced through the blade holder 42.

[0050] Specifically, a sliding block 44 is provided on one side of the tool holder 4, and a sliding groove 14 that fits the sliding block 44 is provided on the side wall of the slot 11, with the sliding block 44 embedded in the sliding groove 14.

[0051] In this embodiment, a sliding groove 14 is provided on the inner wall of the empty groove 11. The movement of the tool holder 4 is improved by the cooperation of the sliding groove 14 and the sliding block 44.

[0052] Specifically, an optical fiber storage box 8 is installed on the support base 1 located on one side of the empty slot 11.

[0053] In this embodiment, a through groove is provided on one side of the empty groove 11 on the support base 1. An optical fiber storage box 8 can be embedded in the through groove to store the waste material after the optical fiber is cut.

[0054] Optionally, a through slot is provided on one side of the empty slot 11 on the support base 1. In the through slot, the optical fiber storage box 8 can be rotatably connected to the through slot via a rotating shaft.

[0055] The working principle of this adjustable-angle handheld fiber optic cutting device is as follows:

[0056] In practical applications, this utility model is referenced. Figures 1-8 First, place the blade holder 4 in the empty slot 11, then embed the optical fiber to be cut into the optical fiber placement slot 72 on the optical fiber fixing plate 71, and fix the optical fiber to be cut by flipping the optical fiber slot cover plate 73, thereby fixing the optical fiber to be cut between the two optical fiber fixing plates 71.

[0057] Then, by rotating the knob 61, the knob 61 drives the screw 63, which in turn drives the transmission gear 64 to rotate. The transmission gear 64 then meshes with the ring teeth 31 on the lower surface of the fiber optic tray 3, causing the fiber optic tray 3 to rotate, thereby completing the adjustment of the fiber optic tray 3.

[0058] Next, the upper cover 2 is closed. When the slider 22 of the sliding pressing component on the upper cover 2 contacts the fiber optic slot cover 73 to compress the spring 24, the spring 24 pushes up the slider 22 based on the restoring force, thereby pressing the fiber optic slot cover 73 in the opposite direction. The slider 22 slides downward in the placement slot 21, thereby driving the fiber optic slot cover 73 to move outward, thereby applying axial tension to the fiber to be cut, and further fixing the fiber to be cut.

[0059] Finally, push the blade holder 4, and the cutting blade 5 on the blade holder 4 will cut the optical fiber. After cutting, open the top cover 2, and the slider 22 will return to its initial position under the elastic force of the spring 24. Open the optical fiber slot cover 73, and the cut waste end can be placed in the optical fiber storage box 8.

[0060] Although the specific embodiments of the utility model have been described in detail with reference to the accompanying drawings, this should not be construed as limiting the scope of protection of this patent. Various modifications and variations that can be made by those skilled in the art without inventive effort within the scope described in the claims still fall within the scope of protection of this patent.

Claims

1. A handheld fiber optic cutting device with an adjustable cutting angle, characterized in that: Includes a support base (1) and an upper cover (2) hinged to the support base (1); The upper surface of the support base (1) is rotatably provided with a centrally through optical fiber tray (3), and optical fiber fixing components are arranged opposite to each other on the optical fiber tray (3). The support base (1) has a through slot (11) in the middle, a knife holder (4) is provided in the slot (11), a cutting knife (5) is provided on the knife holder (4), and the cutting knife (5) is exposed at the through part in the middle of the optical fiber tray (3). A drive assembly (6) for driving the optical fiber tray (3) to rotate is provided in the support base (1) located on one side of the empty slot (11).

2. The handheld fiber optic cutting device with adjustable cutting angle according to claim 1, characterized in that: The fiber fixing assembly includes two fiber fixing plates (71) disposed opposite to each other on the fiber tray (3), and the fiber fixing plates (71) are provided with fiber placement slots (72); a fiber slot cover plate (73) is hinged to one side of the fiber fixing plates (71).

3. The handheld fiber optic cutting device with adjustable cutting angle according to claim 2, characterized in that: The inner side of the upper cover (2) is provided with a sliding pressing component that acts on the fiber optic groove cover plate (73); The sliding pressing assembly includes multiple sliding placement grooves (21) formed in a ring on the inner side of the upper cover (2) and a slider (22) disposed in the sliding placement groove (21); the sliding placement groove (21) is provided with a threaded hole (23), and the slider (22) is fixed by inserting a bolt through the slider (22) into the threaded hole (23), and a spring (24) is sleeved on the bolt located in the threaded hole (23).

4. The handheld fiber optic cutting device with adjustable cutting angle according to claim 3, characterized in that: The end of the fiber optic slot cover plate (73) is provided with a limiting block, and the fiber optic fixing plate (71) is provided with a fixing groove (74) that matches the limiting block, and the limiting block is embedded in the fixing groove (74).

5. The handheld fiber optic cutting device with adjustable cutting angle according to claim 2, characterized in that: An installation groove (12) is provided in the middle of the upper surface of the support base (1), the fiber optic tray (3) is rotatably installed in the installation groove (12), and a scale (13) is provided on the groove edge of the installation groove (12).

6. The handheld fiber optic cutting device with adjustable cutting angle according to claim 5, characterized in that: The drive assembly (6) includes a knob (61), which is mounted on a support base (1) on one side of the slot (11) via a knob base (62). The knob (61) extends to the output end of the support base (1) and is provided with a screw (63). The screw (63) is meshed with a transmission gear (64), which is meshed with the ring teeth (31) on the lower surface of the fiber optic tray (3).

7. The handheld fiber optic cutting device with adjustable cutting angle according to claim 1, characterized in that: The tool holder (4) has a cutting groove (41) in the middle, and a tool holder (42) is provided in the middle of the cutting groove (41). A blade placement groove (43) is provided on the tool holder (42), and the cutting blade (5) is installed in the blade placement groove (43).

8. The handheld fiber optic cutting device with adjustable cutting angle according to claim 7, characterized in that: A sliding block (44) is provided on one side of the tool holder (4), and a sliding groove (14) that fits the sliding block (44) is provided on the side wall of the empty groove (11), and the sliding block (44) is embedded in the sliding groove (14).

9. The handheld fiber optic cutting device with adjustable cutting angle according to claim 1, characterized in that: An optical fiber storage box (8) is provided on the support base (1) located on one side of the empty slot (11).

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