Optical fiber connector ferrule grinder

By designing a stable rectangular box structure and limiting device, the problems of fiber optic connector core movement and dust contamination during the polishing process were solved, achieving a stable and clean polishing operation and facilitating the replacement of polishing paper.

CN224587755UActive Publication Date: 2026-08-04SICHUAN JIUZHOU OPTO-ELECTRONICS LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN JIUZHOU OPTO-ELECTRONICS LTD
Filing Date
2025-07-28
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

The fiber optic connector core is prone to movement and dust accumulation during the polishing process, affecting the polishing effect and cleanliness.

Method used

A fiber optic connector core polisher was designed. It adopts a rectangular box structure, and the polishing paper is fixed by the top block and limit screw. The stability is provided by the rubber ring and spring, and a cover plate is equipped to prevent dust from getting in and to facilitate the replacement of polishing paper.

Benefits of technology

It achieves stable grinding and dust prevention of fiber optic connector cores, improves the stability and cleanliness of grinding operations, and facilitates the replacement of grinding paper.

✦ Generated by Eureka AI based on patent content.

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Abstract

A kind of optical fiber plug-in joint connecting core grinder, including rectangular box, rectangular hole is set in the upper end of rectangular box, the lower end of rectangular box is opened, the lower end of rectangular box is clamped with lower cover plate, the inside of rectangular box is equipped with upper top block, upper top block is below rectangular hole, the length and width size of upper top block is greater than the length and width size of rectangular hole, the upper end of upper top block is paved with abrasive paper, the upper wall of abrasive paper is abutted to the inside upper end of rectangular box, when abrasive paper is fixed in rectangular box by upper top block, the upper wall of upper top block and the lower wall of rectangular box can be used to fix abrasive paper, to avoid that abrasive paper moves in the process of grinding, and this design is convenient to replace abrasive paper.
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Description

Technical Field

[0001] This utility model relates to the field of optical connector processing technology, and in particular to a fiber optic connector core polisher. Background Technology

[0002] Fiber optic connectors, such as BOSA devices (a collective term for TOSA and ROSA), are crucial components of the TOSA (Transmitting Optical Sub-Assembled) optical transmitter module, primarily converting electrical signals to optical signals. During manufacturing, they are often plugged into corresponding detection circuits to verify compliance with production standards. However, during connection, they need to be attached to fiber optic connectors, requiring frequent plugging and unplugging operations. This frequent operation inevitably causes wear on the connector core. Conventionally, fiber optic polishing paper placed on a glass plate is used to polish the connector core. However, this polishing process is prone to paper movement, and the polishing paper easily accumulates dust after use, negatively impacting its reusability. Utility Model Content

[0003] This utility model provides a fiber optic connector core grinder to overcome the shortcomings of the prior art, and solves the problems of inconvenient grinding and easy dust accumulation on the fiber optic connector core, thus having strong practicality.

[0004] In order to achieve the purpose of this utility model, the following technology is proposed to be adopted: A fiber optic connector core polisher includes a rectangular box with a rectangular hole at the top and an opening at the bottom. A lower cover plate is fitted onto the bottom of the rectangular box. An upper block is located inside the rectangular box, below the rectangular hole. The length and width of the upper block are larger than those of the rectangular hole. Polishing paper is laid on the upper part of the upper block, with the upper wall of the polishing paper abutting against the upper interior of the rectangular box. When the polishing paper is fixed inside the rectangular box by the upper block, it can be fixed by the upper wall of the upper block and the lower wall of the rectangular box to prevent the polishing paper from moving during polishing. This design also facilitates the replacement of the polishing paper.

[0005] Furthermore, a rubber ring is fixed to the lower wall of the lower cover plate with screws, which increases the friction between the lower cover plate and the tabletop.

[0006] Furthermore, a pair of mounting blocks are installed inside the rectangular box via screws at the upper end. Limiting screws are threaded onto the mounting blocks, and rotating wheels are mounted on the limiting screws. A pair of spreading protrusions are formed on the outer periphery of the rotating wheels. Extending rods are threaded onto opposite sides of the mounting blocks. End caps are provided at the outer ends of the extending rods, and springs are fitted onto the outer ends of the extending rods. The springs are located between the end caps and the mounting blocks. Outer support plates are fitted onto the extending rods. A concave frame is formed on the inner end of the outer support plate on the same side. The inner wall of the concave frame abuts against the outer wall of the abrasive paper, and the inner wall of the abrasive paper abuts against the outer periphery of the upper top block. Extending protrusions are formed on the outer support plate, and the rotating wheels are located between the extending protrusions. A lower clamping plate is formed on the concave frame, located at the lower end of the upper top block. Specifically, in this design, when limiting the abrasive paper and the upper top block, the abrasive paper is first fixed by the concave frame and the upper top block, and this fixing is achieved through the inward force provided by the springs, thereby improving the stability of the fixation. Secondly, the lower plate limits the lower end of the upper block to ensure that the upper block always has an upward pushing force. Finally, it also facilitates the replacement of the grinding paper. When replacing the paper, simply rotate the rotating wheel to make the concave frames move away from each other.

[0007] Furthermore, the lower wall of the upper block is formed with an embedded strip, the two ends of which pass through the inner side of the lower clamping plate. The embedded strip enhances the limiting effect of the lower clamping plate on the upper block.

[0008] Furthermore, a lever is provided at the outer end of the outer support plate to facilitate the rotation of the rotating wheel.

[0009] Furthermore, the upper two sides of the rectangular box are formed with raised strips, and a cover plate is fastened to the upper side of the rectangular box. The two sides of the cover plate are bent with L-shaped fasteners, which are fastened to the raised strips. One end of the cover plate is formed with a concave pull plate. The cover plate can cover the abrasive paper to prevent dust from getting on the abrasive paper.

[0010] The advantages of the above technical solution are: During operation, this invention does not move, thus facilitating the grinding of the end face of the connecting core. It also makes changing the grinding paper easier and prevents dust from accumulating on the grinding paper. Attached Figure Description

[0011] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will provide a further detailed description of this utility model in conjunction with the accompanying drawings.

[0012] Figure 1 A three-dimensional structure of one embodiment is shown. Figure 1 .

[0013] Figure 2 A three-dimensional structure of one embodiment is shown. Figure 2 .

[0014] Figure 3 A three-dimensional structure of one embodiment is shown. Figure 3 .

[0015] Figure 4 A magnified view of point A is shown.

[0016] Figure 5 A three-dimensional structural diagram of the rectangular box is shown. Detailed Implementation

[0017] like Figures 1-5 As shown, a fiber optic connector core polisher includes a rectangular box 1. The upper end of the rectangular box 1 has a rectangular hole 11, and the lower end of the rectangular box 1 is open. A lower cover plate 2 is fitted onto the lower end of the rectangular box 1. A rubber ring 20 is fixed to the lower wall of the lower cover plate 2 by screws. An upper top block 51 is provided inside the rectangular box 1. The upper top block 51 is located below the rectangular hole 11. The length and width of the upper top block 51 are larger than the length and width of the rectangular hole 11. Polishing paper 53 is laid on the upper end of the upper top block 51, and the upper wall of the polishing paper 53 abuts against the upper end of the interior of the rectangular box 1.

[0018] Inside the rectangular box 1, a pair of mounting blocks 4 are screwed onto the upper part. Limit screws 45 are threaded onto the mounting blocks 4, and rotating wheels 46 are rotatably mounted on the limit screws 45. A pair of spreading protrusions 47 are formed on the outer periphery of the rotating wheels 46. Outer extension rods 40 are threaded onto opposite sides of the mounting blocks 4. End caps 42 are provided at the outer ends of the outer extension rods 40, and springs 41 are fitted onto the outer ends of the outer extension rods 40. The springs 41 are located between the end caps 42 and the mounting blocks 4. An outer support plate 43 is fitted onto the upper part of ...

[0019] The upper end of the rectangular box 1 has raised strips 10 on both sides. A cover plate 3 is fastened to the upper side of the rectangular box 1. L-shaped fasteners 30 are bent on both sides of the cover plate 3. The L-shaped fasteners 30 are fastened to the raised strips 10. A concave pull plate 31 is formed at one end of the cover plate 3.

[0020] In this embodiment, when in use, the operator pulls the cover plate 3 out of the rectangular box 1 and exposes the polishing paper 53. Then, the end face of the connecting core is polished by the polishing paper 53. After the operation is completed, the cover plate 3 is placed on the upper end of the rectangular box 1 by passing the protrusion 10 through the L-shaped buckle plate 30.

[0021] In this embodiment, when replacing the polishing paper 53, the operator rotates the rotating wheel 46 using the lever 48. When the rotating wheel 46 rotates, the outer support plate 43 abuts against the inner wall of the outward protrusion plate 44, thereby causing the concave frame 49 to move outward and the lower clamping plate 50 to move out from under the upper top block 51. Then, the operator removes the upper top block 51 and takes off the polishing paper 53 on it. Then, the new polishing paper 53 is laid on the upper top block 51, while the polishing paper 53 is bent downward and wrapped around the outer periphery of the upper top block 51. Then, the upper top block 51 is placed inside the concave frame 49, and the top of the abrasive paper 53 is pressed against the inner wall of the rectangular box 1. Then, the rotating wheel 46 is rotated again to cancel the opening effect of the outer support plate 43 on the concave frame 49. After that, the concave frame 49 will be pressed tightly against the abrasive paper 53 again under the elastic force of the spring 41, and the lower clamping plate 50 limits the upper top block 51. Finally, the inner extension frame on the lower cover plate 2 is inserted into the lower end of the rectangular box 1.

[0022] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A fiber optic connector core polisher, characterized in that, The rectangular box (1) includes a rectangular hole (11) at the top and an opening at the bottom. A lower cover plate (2) is attached to the bottom of the rectangular box (1). An upper top block (51) is provided inside the rectangular box (1). The upper top block (51) is located below the rectangular hole (11). The length and width of the upper top block (51) are greater than the length and width of the rectangular hole (11). Abrasive paper (53) is laid on the upper end of the upper top block (51). The upper wall of the abrasive paper (53) abuts against the upper part of the interior of the rectangular box (1).

2. The fiber optic connector core polisher according to claim 1, characterized in that, The lower wall of the lower cover plate (2) is fixed with a rubber ring (20) by screws.

3. The fiber optic connector core polisher according to claim 1, characterized in that, Inside the rectangular box (1), a pair of mounting blocks (4) are installed at the upper end by screws. A limit screw (45) is connected to the mounting block (4) by threads. A rotating wheel (46) is rotatably provided on the limit screw (45). A pair of spreading protrusions (47) are formed on the outer periphery of the rotating wheel (46). An extension rod (40) is connected to the opposite sides of the mounting block (4) by threads. An end cap (42) is provided at the outer end of the extension rod (40). A spring (41) is sleeved on the outer end of the extension rod (40). The spring (41) is located between the end cap (42) and the mounting block. Between (4), an outer support plate (43) is fitted on the outer extension rod (40). A concave frame (49) is formed on the inner end of the outer support plate (43) on the same side. The inner wall of the concave frame (49) abuts against the outer wall of the abrasive paper (53), and the inner wall of the abrasive paper (53) abuts against the outer periphery of the upper top block (51). An outer extension protrusion plate (44) is formed on the outer support plate (43). A rotating wheel (46) is located between the outer extension protrusion plates (44). A lower clamping plate (50) is formed on the concave frame (49). The lower clamping plate (50) is located at the lower end of the upper top block (51).

4. The fiber optic connector core polisher according to claim 3, characterized in that, The lower wall of the upper block (51) is formed with an embedded strip (52), and the two ends of the embedded strip (52) are inserted into the inner side of the lower plate (50).

5. The fiber optic connector core polisher according to claim 3, characterized in that, A lever (48) is provided at the outer end of the outer support plate (43).

6. The fiber optic connector core polisher according to claim 1, characterized in that, The upper sides of the rectangular box (1) are formed with raised strips (10), and the upper side of the rectangular box (1) is fitted with a cover plate (3). The two sides of the cover plate (3) are bent with L-shaped buckles (30), which are fastened to the raised strips (10). One end of the cover plate (3) is formed with a concave pull plate (31).