CN-122008062-A - Multi-angle grinding device and method for inclined plane optical fiber

CN122008062ACN 122008062 ACN122008062 ACN 122008062ACN-122008062-A

Abstract

The application belongs to the field of optical fiber processing, and particularly discloses a multi-angle grinding device and method for inclined-plane optical fibers, wherein the grinding device comprises an optical fiber clamping assembly, an optical fiber grinding mechanism and a positioning installation jig, the optical fiber clamping assembly is used for clamping and fixing the inclined-plane optical fibers to be ground, the optical fiber grinding mechanism comprises a grinding disc, a working surface of the grinding disc is detachably connected with the grinding disc, the positioning installation jig comprises an installation base and a positioning installation plate, at least two installation parts are arranged on the installation base, installation reference surfaces for installing the positioning installation plate are arranged on each installation part, included angles formed between the installation reference surfaces on different installation parts and the working surface of the grinding disc are different, the positioning installation plate is detachably connected with the installation reference surfaces, and the optical fiber clamping assembly is detachably connected with the positioning installation plate. By the structural design of the application, the grinding efficiency of the inclined plane optical fiber can be effectively improved, the damage such as end face scratch and the like is reduced, and the end face grinding quality is ensured.

Inventors

WU DONGHUA
HE QIXUN
MAO ZHAOZHAO
LIU BIN
LI ZHE
HU AILING

Assignees

长飞（武汉）光系统股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260313

Claims (10)

1. A multi-angle lapping apparatus for a beveled optical fiber, comprising: the optical fiber clamping assembly (1), the optical fiber clamping assembly (1) is used for clamping and fixing an inclined plane optical fiber (4) to be grinded; The optical fiber grinding mechanism (2), the optical fiber grinding mechanism (2) comprises a grinding disc (21), and a grinding sheet (22) is detachably connected to the working surface of the grinding disc (21) and is used for grinding the end part of the inclined-plane optical fiber (4) to be ground; positioning and mounting jig (3) for bearing an optical fiber clamping assembly (1), the positioning and mounting jig (3) comprises: The grinding device comprises a mounting base (31), wherein at least two mounting parts are arranged on the mounting base (31), each mounting part is provided with a mounting reference surface, and included angles formed between the mounting reference surfaces on different mounting parts and the working surface of the grinding disc (21) are different; The positioning mounting plate (32) is detachably connected with the mounting reference surface, and is used for mounting the optical fiber clamping assembly (1).
2. A multi-angle polishing apparatus for an optical fiber inclined surface according to claim 1, wherein the mounting portion is a mounting groove (331) formed in the mounting base (31), and the mounting reference surface is a groove bottom surface of the mounting groove (331).
3. A multi-angle polishing apparatus for an optical fiber inclined surface according to claim 1, wherein the mounting portion is a mounting block (332) detachably connected to the mounting base (31), and the mounting reference surface is disposed on a side of the mounting block (332) facing the polishing disc (21) and forms an angle with a horizontal plane.
4. A multi-angle polishing apparatus for an optical fiber with inclined surfaces according to claim 1, wherein the optical fiber holding assembly (1) comprises a bottom plate (11) and a first pressing block (12), a containing groove (13) for containing the optical fiber with inclined surfaces (4) to be polished is formed in the bottom plate (11) along the length direction of the bottom plate, the first pressing block (12) is rotatably connected to the bottom plate (11), and the first pressing block (12) is rotated to a pressing position for pressing the optical fiber with inclined surfaces (4) to be polished in the containing groove (13).
5. The multi-angle polishing apparatus for bevel optical fiber according to claim 4, wherein a positioning groove (321) is provided at one end of the positioning mounting plate (32) far away from the mounting portion, the positioning groove (321) corresponds to the accommodating groove (13) on the bottom plate (11) and is used for positioning the end portion of the bevel optical fiber (4) to be polished, a second pressing block (322) is rotatably connected to the positioning mounting plate (32), and the second pressing block (322) is rotated to a pressing position for pressing the end portion of the bevel optical fiber (4) to be polished in the positioning groove (321).
6. A multi-angle lapping device for a beveled optical fiber as claimed in claim 5, wherein the spacing between the first and second compaction blocks (12, 322) is 0-1mm.
7. A multi-angle polishing apparatus for an optical fiber inclined according to claim 5, wherein said positioning mounting plate (32) and said second pressing block (322) each form a convex portion toward a direction approaching said polishing plate (21), and said positioning groove (321) penetrates said convex portion.
8. A method for multi-angle polishing of an inclined optical fiber using the multi-angle polishing apparatus according to any one of claims 1 to 7, comprising the steps of: S1, clamping and fixing an inclined plane optical fiber (4) to be ground through an optical fiber clamping assembly (1), stripping a coating layer at the end part of the inclined plane optical fiber (4) to be ground, and simultaneously installing a positioning installation plate (32) on an installation reference surface of a corresponding installation part; s2, mounting an optical fiber clamping assembly (1) clamping an optical fiber (4) with an inclined surface to be ground on a positioning mounting plate (32), so that a grinding angle is formed between the axis of the optical fiber (4) with the inclined surface to be ground and the working surface of a grinding disc (21); and S3, starting an optical fiber grinding mechanism (2), and driving a grinding disc (21) and a grinding sheet (22) to rotate so as to grind the end part of the inclined-plane optical fiber (4) to be ground, thereby realizing grinding of the inclined-plane optical fiber.
9. A method of multi-angle polishing of an optical fiber with inclined surface according to claim 8, wherein in step S3, the angle of the working surface of the polishing disc (21) is adjustable, and the angle α of the working surface of the polishing disc (21) to the horizontal plane is in the range of 15 ° to 90 °.
10. A multi-angle polishing method for a beveled optical fiber as defined in claim 8, wherein said polishing sheet (22) comprises a first polishing sheet, a second polishing sheet and a third polishing sheet, the polishing particle sizes of said first polishing sheet, second polishing sheet and third polishing sheet being sequentially reduced, said step of driving the polishing disc (21) and polishing sheet (22) to rotate to polish the end portion of the beveled optical fiber (4) to be polished comprising: Mounting the first grinding sheet on the grinding disc (21), and driving the grinding disc (21) to rotate so as to grind the end part of the optical fiber (4) with the inclined plane to be ground; Mounting the second polishing sheet on the polishing disc (21), and driving the polishing disc (21) to rotate so as to polish the end part of the optical fiber (4) with the inclined surface to be polished; the third polishing sheet is mounted on the polishing disc (21), and the polishing disc (21) is driven to rotate so as to polish the end part of the optical fiber (4) with the inclined surface to be polished.

Description

Multi-angle grinding device and method for inclined plane optical fiber Technical Field The application belongs to the field of optical fiber processing, and particularly relates to a multi-angle grinding device and method for an inclined plane optical fiber. Background The inclined plane optical fiber is a special optical fiber designed based on the geometric shape of an end face, and mainly comprises two types, namely a small-angle inclined plane optical fiber, wherein the inclined plane angle is 6-10 degrees and is used for preventing reflected light on the surface of the optical fiber from causing signal interference or damaging optical devices when the reflected light returns to an optical path, and a large-angle inclined plane optical fiber, wherein the inclined plane angle is 40-50 degrees or more and can change the optical path and even realize large-angle total reflection, so that the effective light receiving area is enlarged, the light coupling efficiency is improved, and more optical signals enter the optical fiber. The inclined plane optical fiber has important application value in the fields of optical fiber lasers, optical fiber communication, traditional optical systems, optical fiber sensing and the like due to the unique optical regulation capability. At present, the preparation of the inclined plane optical fiber mainly faces the contradiction between the process and the cost, namely, the high-precision laser cutting method can cut rapidly, but most enterprises can only select manufacturers with high commission cost to process because laser cutting equipment is expensive and the product demand is smaller, so that the problem of low-cost mass production cannot be fundamentally solved. While the traditional mechanical cutting method has low cost, but has limited processing angle and poor quality of end surfaces formed by cutting, and is easy to break. The conventional common grinding process comprises the steps of firstly stripping a longer section of coating layer of an optical fiber, then fixing the optical fiber by inserting the optical fiber into an inserting core, fixing the optical fiber at the front end and the rear end of the inserting core by using ultraviolet glue, and then grinding. Another grinding process adopts a four-corner pressurizing grinder to grind the inclined-plane optical fiber, when the process is adopted for processing, scratches are easy to appear on the grinding end surface, the optical fiber is damaged, the grinding polishing sheet needs to be replaced for a plurality of times, a plurality of ferrules are used for fixing the optical fiber, the waste of consumables is serious, meanwhile, the processing angle of the mode is limited by a clamp, only a few fixed angles can be obtained generally, and the diversified production and application requirements are difficult to meet. Disclosure of Invention Aiming at the defects of the prior art, the application provides a multi-angle grinding device and method for an inclined plane optical fiber, and aims to solve the problems that the traditional laser cutting method is high in equipment cost, limited in angle and poor in end face quality, and the traditional grinding process is low in efficiency, high in consumable waste and single in processing angle. The application provides a multi-angle grinding device for an inclined plane optical fiber, which specifically comprises: the optical fiber clamping assembly is used for clamping and fixing the inclined-plane optical fiber to be ground; The optical fiber grinding mechanism comprises a grinding disc, and a grinding sheet is detachably connected to the working surface of the grinding disc and is used for grinding the end part of the inclined-plane optical fiber to be ground; Positioning and mounting jig for bear optic fibre clamping assembly, positioning and mounting jig includes: The grinding disc comprises a mounting base, wherein at least two mounting parts are arranged on the mounting base, each mounting part is provided with a mounting reference surface, and included angles formed between the mounting reference surfaces on different mounting parts and the working surface of the grinding disc are different; The positioning mounting plate is detachably connected with the mounting reference surface and used for mounting the optical fiber clamping assembly. Compared with the prior art, the technical scheme of the application has the advantages that the optical fiber clamping assembly is adopted to directly clamp the inclined-plane optical fiber to be polished, complicated operations such as fiber penetration, glue injection and the like in the traditional process are not needed, the problems of fiber breakage, core blockage and the like are avoided, the positioning mounting plate is arranged on the mounting reference surfaces of different angles, the optical fiber clamping assembly is arranged on the positioning mounting plate, the polishing angle of the inclined-plane opti