Fiber optic ferrule holder

Abstract

The present invention relates to an optical fiber sleeve clamp, which has a piston through hole in the middle of the piston, a guide long through hole along the long axis direction of the piston rod, and a hollow tube passing through the piston through hole and the guide long through hole and extending out of the cylinder body at both ends. During operation, the optical fiber is inserted into the interior of the hollow tube and passes through the cylinder body and the chuck of the cylinder through the hollow tube. The optical fiber passes through the chuck and accurately enters the interior of the sleeve. The outer wall of the hollow tube is sealed with the piston. With such an arrangement, the movement of the piston and piston rod of the cylinder will not be affected even if the hollow tube is added. The present invention is also provided with a glue applicator. When the optical fiber passes through the glue applicator ring, glue will adhere to the outer surface of the optical fiber. When the optical fiber is inserted into the sleeve, glue is distributed between the optical fiber and the sleeve. Compared with the prior art, the present invention can save the step of applying glue in the sleeve in advance, and completes the gluing and fiber insertion while holding the sleeve, with fewer operating steps and high work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of optical fiber adapter processing and manufacturing, in particular to an optical fiber sleeve holder. Background Art

[0002] The main components of a fiber optic adapter (fiber ferrule) include a semi-finished product, a ferrule for inserting the optical fiber, and metal parts. The optical fiber must be inserted into the ceramic ferrule and then cut. Before insertion, glue is often injected to strengthen the connection between the optical fiber and the ceramic ferrule. Existing fiber ferrule clamps generally only clamp the ferrule and fail to simultaneously hold the ferrule and thread the optical fiber through the ferrule and apply glue. For example, the fiber optic protective cover assembly tool disclosed in Publication No. CN 216927201U includes a fiber input carrier and a ferrule. The fiber input carrier is secured to a fiber input carrier fixture. A base plate is provided at the side of the fixture, and a clamping assembly is slidably connected to the base plate. The ferrule is positioned on and clamped by the clamping assembly, with the ferrule positioned to coincide with the central axis of the bonding point of the fiber input carrier. By moving the clamping assembly toward the fiber input carrier fixture, the ferrule is inserted into the fiber input carrier bonding point, aligning the ferrule and the bonding point. Glue is then applied to the bonding point, ensuring uniform adhesive coverage between the ferrule and the fiber input carrier. This ensures product consistency and improves bonding strength compared to purely manual operation. This patent document requires an additional glue application process, which is complex and inefficient. Furthermore, the carrier fixture of the clamping assembly cannot be automatically clamped, requiring manual insertion of the ferrule, which is inefficient.

[0003] Therefore, in view of the problems existing in the prior art, there is an urgent need to provide a fiber optic ferrule holder technology that can clamp the fiber optic ferrule while inserting the optical fiber into the ferrule and applying glue. Summary of the Invention

[0004] The object of the present invention is to avoid the deficiencies in the prior art and to provide an optical fiber ferrule holder which can clamp an optical fiber ferrule while inserting an optical fiber into the ferrule and applying glue.

[0005] The purpose of the present invention is achieved through the following technical solutions:

[0006] Provided is an optical fiber sleeve clamp, comprising a support base, a cylinder and a clamping claw, characterized in that: the cylinder is provided with a cylinder body, a piston, a piston rod and a hollow tube, the cylinder body is provided with an air nozzle, the piston is embedded in the cylinder body, and the piston rod is fixedly connected to the piston;

[0007] A piston through hole is provided in the middle of the piston, and a long guide through hole is provided along the long axis direction of the piston rod. The long guide through hole is connected to the piston through hole. A hollow tube passes through the piston through hole and the long guide through hole and extends out of the cylinder body at both ends. The outer wall of the hollow tube is sealed with the piston.

[0008] A chuck is provided below the piston rod, and the chuck is provided with a chuck through hole for the optical fiber to pass through; the clamping claw is installed on the chuck and connected to the piston rod;

[0009] A glue applying part is also provided, which includes a support rod and a glue applying ring installed at the lower end of the support rod. The center of the glue applying ring is located on the central axis of the guide long through hole and is located above the clamping claw and below the piston rod.

[0010] Preferably, the clamping jaw is provided with a hinge assembly and two claw bodies, the hinge assembly is connected to one end of the piston rod, and the two claw bodies are respectively rotatably mounted on the chuck and hinged to the hinge assembly; arc-shaped grooves are provided on opposite sides of the two claw bodies, and when the two claw bodies are embraced, the space formed by the two arc-shaped grooves is cylindrical.

[0011] Preferably, the hinge assembly includes a connecting block and two hinged parts, one end of the hinged part is connected to the connecting block, and the other end is connected to the claw body.

[0012] Preferably, the arc-shaped groove is provided with a buffer layer.

[0013] Preferably, the buffer layer is a sponge layer.

[0014] Preferably, one end of the support rod is fixed to the chuck, and the other end is fixed to the glue applying ring. The support rod is tilted so that the center of the glue applying ring is located on the central axis of the long guide hole.

[0015] Preferably, the lower parts of the two claws are configured to be L-shaped, and blades are installed on the upper ends of the inwardly protruding parts of the lower parts of the two claws.

[0016] Preferably, the upper surface of one blade and the lower surface of the other blade are located in the same plane.

[0017] Preferably, the blade is mounted on the inwardly protruding portion of the lower portion of the claw body by means of screws.

[0018] Preferably, the diameter of the sizing ring is 2-4 mm.

[0019] Beneficial effects of the present invention:

[0020] (1) The optical fiber sleeve holder of the present invention has a piston through hole in the middle of the piston, and a long guide through hole is provided along the longitudinal direction of the piston rod. The long guide through hole is connected to the piston through hole, and a hollow tube passes through the piston through hole and the long guide through hole, with both ends extending out of the cylinder body. During operation, the optical fiber is inserted into the interior of the hollow tube and passes through the hollow tube through the cylinder body. At the same time, a chuck is provided below the piston rod, and the chuck is provided with a chuck through hole for the optical fiber to pass through, so that the optical fiber can pass through the chuck and accurately enter the interior of the sleeve.

[0021] (2) The outer wall of the hollow tube is sealed with the piston. With this arrangement, the movement of the piston and piston rod of the cylinder will not be affected even if the hollow tube is added.

[0022] (3) A glue applicator is also provided, which includes a support rod and a glue applicator ring installed at the lower end of the support rod. The center of the glue applicator ring is located on the central axis of the long guide hole and is located above the clamping claw and below the piston rod. In order to make the connection between the optical fiber and the sleeve more secure, the two need to be bonded and fixed using glue. The existing technology often requires injecting glue into the sleeve first and then inserting the optical fiber. This process has many steps and low work efficiency. The present invention uses a glue applicator to easily apply glue while inserting the fiber. The glue injection needle of the glue injection machine extends into the vicinity of the glue applicator and contacts the glue applicator ring or the support rod. Due to the fluidity and viscosity of the glue, it will move along the glue applicator ring until it covers the surface of the glue applicator ring and is set inside the glue applicator ring to form a layer of glue. When the optical fiber passes through the glue applicator ring, the glue will adhere to the outer surface of the optical fiber. When the optical fiber is inserted into the sleeve, the glue is spread between the optical fiber and the sleeve. Compared with the existing technology, the present invention can save the step of applying glue in the sleeve in advance and complete the gluing and fiber insertion at the same time as the sleeve is supported. The operation steps are few and the work efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described with reference to the accompanying drawings, but the contents in the drawings do not constitute any limitation to the present invention.

[0024] Figure 1 It is a structural schematic diagram of an embodiment of the optical fiber ferrule holder of the present invention.

[0025] Figure 2 yes Figure 1 Enlarged view of point A.

[0026] Figure 3 It is a schematic diagram of a cylinder, a piston, a piston rod and a hollow tube of an embodiment of the optical fiber ferrule holder of the present invention.

[0027] Figure 4 Schematic diagram of the clamping jaws of an embodiment of the optical fiber ferrule clamp of the present invention.

[0028] exist Figures 1 to 3 These include:

[0029] 1 - support seat, 2 - cylinder, 3 - cylinder body, 4 - piston, 5 - piston rod,

[0030] 6 - hollow tube, 7 - chuck, 8 - clamping claw, 9 - glue applicator, 10 - support rod,

[0031] 11——Glue ring, 12——Hinged assembly. Implementation Method

[0032] The present invention will be further described with reference to the following examples. Example

[0033] See also Figures 1 to 3 The optical fiber ferrule holder of this embodiment includes a support base 1, a cylinder 2, and a clamping jaw 8. The cylinder 2 is provided with a cylinder body 3, a piston 4, a piston rod 5, and a hollow tube 6. A through hole is provided in the middle of the piston 4. A long guide hole is provided along the longitudinal axis of the piston rod 5, which is connected to the through hole of the piston 4. The hollow tube 6 passes through the through hole of the piston 4 and the long guide hole, and both ends extend out of the cylinder body 3. A chuck 7 is provided below the piston rod 5. The clamping jaw 8 is mounted on the chuck 7 and connected to the piston rod 5. During operation, the optical fiber is inserted into the interior of the hollow tube 6, passes through the cylinder body 3 of the cylinder 2, and then extends out through the through hole of the chuck 7. The diameter of each through hole can be set slightly larger than the diameter of the optical fiber to allow the optical fiber to pass through and be accurately inserted into the optical fiber ferrule. In actual operation, an extension tube can be provided below the chuck 7 to shorten the distance between the protruding end of the optical fiber and the ferrule.

[0034] To ensure proper operation of the cylinder 2, the cylinder body 3 is provided with a gas nozzle, the piston 4 is embedded in the cylinder body 3, and the piston rod 5 is fixedly connected to the piston 4. In this embodiment, the outer wall of the hollow tube 6 is sealed with the piston 4, and the hollow tube 6 passes through the cylinder body 3 and extends out of the cylinder body 3 at both ends. The sealed connection can be sealed by adding a sealing ring or other means. The sealed connection is a prior art and will not be described in detail here. It should be clear to those skilled in the art.

[0035] The clamping jaw 8 of this embodiment is provided with an articulated assembly 12 and two claw bodies. The articulated assembly 12 is connected to one end of the piston rod 5. The two claw bodies are rotatably mounted on the chuck 7 and are hinged to the articulated assembly 12. The articulated assembly 12 includes a connecting block and two hinged parts. One end of the hinged part is connected to the connecting block, and the other end is connected to the claw body. It should be noted that the technology of the cylinder 2 clamping jaw 8 itself belongs to the prior art. Although this embodiment lists the connection method of one of the claw bodies, the chuck 7 and the articulated assembly 12, it does not mean that only this method can be used to achieve the closing and opening of the two claw bodies. Moreover, the technology of the cylinder 2 clamping jaw 8 that is not described in detail in this embodiment can also adopt the means of the prior art. The main improvement of the present invention over the cylinder 2 clamping jaw 8 is that the chuck 7 is provided with a chuck 7 through hole and cooperates with other components to work together. In this embodiment, arc-shaped grooves are provided on opposite sides of the two claws. When the two claws are embraced, the space formed by the two arc-shaped grooves is cylindrical, which can better clamp the sleeve and prevent the sleeve from shifting during clamping, making it difficult to insert the optical fiber.

[0036] To simultaneously apply glue while inserting the optical fiber, the optical fiber ferrule holder of this embodiment further includes a glue applicator 9. This glue applicator 9 includes a support rod 10 and a glue ring 11 mounted at the lower end of the support rod 10. The center of the glue ring 11 is located on the central axis of the long guide hole, above the clamping jaws 8, and below the piston rod 5. One end of the support rod 10 is fixed to the chuck 7, and the other end is fixed to the glue ring 11. The support rod 10 is tilted so that the center of the glue ring 11 is located on the central axis of the long guide hole. The present invention utilizes the glue applicator 9 to conveniently apply glue while inserting the fiber. The glue needle of the glue injection machine extends near the glue applicator 9 and contacts the glue ring 11 or the support rod 10. Due to its fluidity and viscosity, the glue moves along the glue ring 11 until it covers the entire surface of the glue ring 11, forming a layer of glue within the glue ring 11. When the optical fiber passes through the glue ring 11, the glue adheres to the outer surface of the optical fiber. When the optical fiber is inserted into the ferrule, the glue is distributed between the optical fiber and the ferrule. Compared with the prior art, the present invention can save the step of applying glue in the casing in advance, and complete the gluing and fiber insertion while holding the casing, with fewer operating steps and high work efficiency.

[0037] The working process and principle of the optical fiber sleeve clamp of the present invention are as follows:

[0038] When the ferrule moves with the rotating disk (not a component of this invention) to the fiber insertion position, the glue dispenser (not a component of this invention) injects an appropriate amount of glue into the glue ring 11 through a hose and glue needle. The fiber ferrule holder clamps the ferrule to prevent it from moving. Simultaneously, the fiber feeder feeds the fiber through the cylinder 2 and chuck 7, through the glue ring 11, and then into the ferrule. At this point, the gluing and fiber insertion process is complete. The fiber can be cut manually or automatically with the addition of a fiber cutting device. Example

[0039] The optical fiber adapter is a precision component. Surface damage will affect signal transmission. To avoid damaging the sleeve, the arcuate groove of the claw body of this embodiment is provided with a buffer layer, which is a sponge layer.

[0040] The main technical solutions of this embodiment are basically the same as those of embodiment 1. For features not explained in this embodiment, the explanations in embodiment 1 are adopted and will not be repeated here. Example

[0041] See also Figure 4 To achieve automated fiber severing, the lower portions of the two jaws in this embodiment are L-shaped. Blades are mounted on the upper ends of the inwardly protruding portions of the jaws. Specifically, the blades are screwed to the inwardly protruding portions of the jaws. The upper surface of one blade is flush with the lower surface of the other blade. With the blades mounted in this manner, when the jaws 8 close to grip the ferrule, they sever the fiber.

[0042] The main technical solution of this embodiment is basically the same as that of Example 1 or Example 2. The features not explained in this embodiment are explained in Example 1 or Example 2 and will not be repeated here. Example

[0043] The diameter of the glue-applying ring 11 of this embodiment is 2-4 mm, and this size enables the glue to form a good glue layer on the glue-applying ring 11 .

[0044] The main technical solutions of this embodiment are basically the same as those of embodiment 1. For features not explained in this embodiment, the explanations in embodiment 1 are adopted and will not be repeated here.

[0045] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the claims. A person skilled in the art will understand that, with reference to the preferred embodiments, modifications or equivalent substitutions to the technical solutions of the present invention may be made, provided that the modifications remain substantially the same and within the scope of protection of the present invention.

Claims

1. An optical fiber sleeve clamp, comprising a support base, a cylinder and a clamping claw, characterized in that: The cylinder is provided with a cylinder body, a piston, a piston rod and a hollow tube, the cylinder body is provided with a gas nozzle, the piston is embedded in the cylinder body, and the piston rod is fixedly connected to the piston; A piston through hole is provided in the middle of the piston, and a long guide through hole is provided along the longitudinal direction of the piston rod, the long guide through hole is connected to the piston through hole, the hollow tube passes through the piston through hole and the long guide through hole, and both ends extend out of the cylinder body; the outer wall of the hollow tube is sealed with the piston; A chuck is provided below the piston rod, and the chuck is provided with a chuck through hole for the optical fiber to pass through; the clamping claw is installed on the chuck and connected to the piston rod; A glue-applying member is also provided, comprising a support rod and a glue-applying ring mounted at the lower end of the support rod, wherein the center of the glue-applying ring is located on the central axis of the long guide hole and above the clamping jaw and below the piston rod; one end of the support rod is fixed to the chuck, and the other end is fixed to the glue-applying ring, wherein the support rod is tilted so that the center of the glue-applying ring is located on the central axis of the long guide hole; The lower parts of the two claws are arranged in an L shape and arcuate grooves are arranged on opposite sides of the two claws. When the two claws are embraced, the space formed by the two arcuate grooves is cylindrical.

2. The optical fiber ferrule holder according to claim 1, characterized in that: The clamping jaw is provided with a hinge assembly and two claw bodies. The hinge assembly is connected to one end of the piston rod. The two claw bodies are respectively rotatably mounted on the clamping head and are hinged to the hinge assembly.

3. The optical fiber ferrule holder according to claim 2, characterized in that: The hinge assembly includes a connecting block and two hinged parts, one end of the hinged part is connected to the connecting block, and the other end is connected to the claw body.

4. The optical fiber ferrule holder according to claim 2, wherein: The arc-shaped groove is provided with a buffer layer.

5. The optical fiber ferrule holder according to claim 4, characterized in that: The buffer layer is a sponge layer.

6. The optical fiber ferrule holder according to claim 1, wherein: The upper ends of the inwardly protruding parts of the lower parts of the two claws are both equipped with blades.

7. The optical fiber ferrule holder according to claim 6, characterized in that: The upper surface of one blade and the lower surface of the other blade are located in the same plane.

8. The optical fiber ferrule holder according to claim 7, characterized in that: The blade is mounted on the inwardly protruding portion of the lower portion of the claw body through screws.

9. The optical fiber ferrule holder according to claim 1, characterized in that: The diameter of the sizing ring is 2-4 mm.

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