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CN-121978804-A - Automatic core adjusting equipment for polarization maintaining optical fiber

CN121978804ACN 121978804 ACN121978804 ACN 121978804ACN-121978804-A

Abstract

The invention discloses automatic core adjusting equipment for polarization maintaining optical fibers, which is characterized in that a plurality of optical fibers are fixed through a mechanical core inserting fixing mechanism, an optical fiber imaging mechanism performs high-resolution imaging on the end surfaces of the optical fibers, obtains orientation angle information of a cat eye in real time, and accordingly accurately detects and feeds back the end surface deviation and the inclination angle of the optical fibers, an optical fiber rotating mechanism performs angle rotation on each optical fiber to ensure that the end surfaces of the optical fibers keep correct orientation, and an optical fiber locking mechanism performs stable locking on the optical fibers after the optical fibers are aligned in angle. The controller realizes automatic regulation and control to the mechanical lock pin fixing mechanism, the optical fiber imaging mechanism, the optical fiber rotating mechanism and the optical fiber locking mechanism based on the image processing result, so that the cat eye position does not need to be manually regulated by manpower in the optical fiber core regulating process, the core regulating efficiency is improved, and the manufacturing efficiency and the product performance stability of the optical fiber device are improved.

Inventors

  • MIZUNO KAZUYOU
  • DING XIANGJIE
  • LI XUYANG

Assignees

  • 古河辉提路光电(上海)有限公司

Dates

Publication Date
20260505
Application Date
20260401

Claims (13)

  1. 1. An automatic core adjusting device for polarization maintaining optical fiber, comprising: The mechanical lock pin fixing mechanism is provided with a first adjusting base and moves along the X-axis, Y-axis and Z-axis directions under the adjustment of the first adjusting base, and is used for fixing a plurality of optical fibers and multi-optical fiber connectors; The optical fiber imaging mechanism is arranged at one side of the mechanical inserting core fixing mechanism, is provided with a second adjusting base, moves relative to the mechanical inserting core fixing mechanism along the X-axis, the Y-axis and the Z-axis directions under the adjustment of the second adjusting base, and is used for imaging the end face of the optical fiber to acquire cat eye orientation angle information in the optical fiber; The optical fiber locking mechanism is arranged on the other side of the mechanical lock pin fixing mechanism and is used for locking the position of the optical fiber after the optical fiber is aligned in an angle; The optical fiber rotating mechanism is arranged on one side, away from the mechanical ferrule fixing mechanism, of the optical fiber locking mechanism and is used for sequentially rotating each optical fiber so as to adjust the angle of each optical fiber; And the controller is electrically connected with the mechanical ferrule fixing mechanism, the optical fiber imaging mechanism, the optical fiber rotating mechanism and the optical fiber locking mechanism and is used for controlling each executing mechanism to realize automatic alignment and locking of the optical fiber based on an image processing result.
  2. 2. The automatic core alignment apparatus of polarization maintaining optical fiber according to claim 1, wherein the optical fiber locking mechanism comprises: the first fixing seat is arranged at one side of the mechanical ferrule fixing mechanism, which is away from the optical fiber imaging mechanism; the V-shaped groove plate is connected with the first fixing seat and provided with a plurality of first V-shaped grooves which are spaced in parallel, and the first V-shaped grooves are used for accommodating the optical fibers; the first cover plate is connected with the V-shaped groove plate and used for pressing the optical fiber in the first V-shaped groove; The locking cover plate is connected to the V-shaped groove plate in a sliding manner, moves relative to the V-shaped groove plate along the direction of the intervals of the plurality of first V-shaped grooves and is used for locking the positions of the plurality of optical fibers after the plurality of optical fibers are aligned in an angle manner; And the locking driving assembly is connected with the first fixing seat and the locking cover plate and is used for driving the locking cover plate to move relative to the V-shaped groove plate.
  3. 3. The automatic core alignment device for polarization maintaining optical fiber according to claim 2, wherein, The first cover plate is connected with the V-shaped groove plate through magnetic attraction.
  4. 4. The automatic core alignment device for polarization maintaining optical fiber according to claim 2, wherein, The number of the locking cover plates is two, the two locking cover plates are a first locking cover plate and a second locking cover plate respectively, and the first locking cover plate and the second locking cover plate are located on two sides of the first cover plate respectively.
  5. 5. The automatic core adjusting device for polarization maintaining optical fiber according to claim 4, wherein, The first locking cover plate is provided with a first guide groove, the V-shaped groove plate or the first fixing seat is provided with a first guide rod, and the first guide rod is connected in the first guide groove in a sliding way; the second locking cover plate is provided with a second guide groove, the V-shaped groove plate or the first fixing seat is provided with a second guide rod, and the second guide rod is slidably connected in the second guide groove.
  6. 6. The automatic core alignment apparatus of polarization maintaining optical fiber according to claim 5, wherein the locking driving assembly comprises: The driving motor is connected to the first fixing seat; the guide rail is connected with the first fixing seat and is provided with a guide chute with an open top; The screw rod is rotationally connected in the guide chute and is connected with a motor shaft of the driving motor; the bottom of the driving piece is connected in the guide chute in a sliding way and is in threaded connection with the screw rod, the top end of the driving piece is connected with the locking cover plate, and the driving piece is used for driving the locking cover plate to move along the direction far away from or near to the V-shaped groove plate relative to the V-shaped groove plate.
  7. 7. The automatic core alignment device of polarization maintaining fiber as recited in claim 6, wherein the fiber locking mechanism further comprises: The position sensor is arranged on the guide rail and used for detecting the movement position of the driving piece relative to the guide rail.
  8. 8. The automatic core alignment device of polarization maintaining fiber according to claim 7, wherein the fiber locking mechanism further comprises: and the middle illumination assembly is connected with the first fixing seat and used for illuminating the optical fibers on the upper side and the lower side of the V-shaped groove plate.
  9. 9. The automatic polarization maintaining fiber core adjusting apparatus according to claim 8, wherein the middle lighting assembly comprises: the upper cover plate is rotationally connected to the first fixing seat and is positioned above the V-shaped groove plate; the upper lamp bead is connected to the upper cover plate and used for illuminating the optical fibers on the upper side of the V-shaped groove plate; the lower base is connected with the first fixing seat and is positioned above the V-shaped groove plate; and the lower lamp bead is connected with the lower base and is used for illuminating the optical fiber at the lower side of the V-shaped groove plate.
  10. 10. The automatic polarization maintaining fiber aligning device according to claim 1, wherein the fiber rotating mechanism comprises: The second fixing seat is arranged at one side of the optical fiber locking mechanism, which is away from the mechanical lock pin fixing mechanism; the lower rotating assembly is connected with the second fixing seat and slides relative to the second fixing seat along the parallel interval direction of the optical fibers; The rotary fixing seat is connected with the lower rotary assembly; The optical fiber clamping groove seat is connected to one side of the rotary fixing seat, which is away from the lower rotary assembly, and is provided with optical fiber clamping grooves corresponding to the optical fibers one by one; the upper rotating assembly is connected to the second fixing seat, is positioned above the optical fiber clamping groove seat, slides relative to the second fixing seat along the parallel interval directions of a plurality of optical fibers, and has opposite movement directions with the lower rotating assembly.
  11. 11. The automatic polarization maintaining fiber aligning device according to claim 1, wherein the mechanical ferrule fixing mechanism comprises: The V-shaped groove block is provided with second V-shaped grooves which are in one-to-one correspondence with the optical fibers; The second cover plate is connected with the V-shaped groove block through a second locking piece, and the second locking piece is in threaded connection with the V-shaped groove block; The vacuum fixing seat is connected with the first adjusting base and is provided with a screw hole and a first vacuum adsorption hole, the vacuum fixing seat is used for vacuum adsorption fixing of the V-shaped groove block through the screw hole, and the vacuum fixing seat is used for vacuum adsorption fixing of the multi-fiber connector through the first vacuum adsorption hole.
  12. 12. The automatic core alignment device for polarization maintaining optical fiber according to claim 11, wherein, The vacuum fixing seat is provided with a clamping groove, the position of the clamping groove corresponds to the position of the first vacuum adsorption hole, and the multi-fiber connector is accommodated in the clamping groove.
  13. 13. The automatic core alignment device of polarization maintaining fiber according to claim 1, wherein the fiber imaging mechanism comprises: a camera connected to the second adjustment base; a front lighting panel connected to the camera; a front light bead attached to the front light panel.

Description

Automatic core adjusting equipment for polarization maintaining optical fiber Technical Field The application belongs to the technical field of optical fiber processing, and particularly relates to automatic core adjusting equipment for polarization maintaining optical fibers. Background In optical communication and optical fiber device manufacturing, accurate adjustment of the end face of an optical fiber is an important link for ensuring the performance of the optical fiber, and accurate positioning and adjustment of the end face of the optical fiber are important for the grinding quality and the extinction ratio measurement precision. Existing optical fiber adjustment devices typically rely on "cat eye" devices to assist an operator in viewing and aligning the end face of the optical fiber, but adjustment of cat eye position is often dependent on manual operation. The manual adjustment mode has the problems of low efficiency, long time consumption and difficult avoidance of tiny offset, so that the positioning precision of the optical fiber end face is unstable, meanwhile, the operation result is greatly influenced by the experience of operators, and the consistency among batches is difficult to ensure. Disclosure of Invention The embodiment of the application aims to provide automatic core adjusting equipment for polarization maintaining optical fibers, which is used for simultaneously grinding a plurality of glass cover plates so as to improve the grinding efficiency of the glass cover plates and ensure the uniformity of the grinding effect. In order to achieve the above object, the present application provides an automatic core adjusting device for polarization maintaining optical fiber, for grinding a glass cover plate, comprising: The mechanical lock pin fixing mechanism is provided with a first adjusting base and moves along the X-axis, Y-axis and Z-axis directions under the adjustment of the first adjusting base, and is used for fixing a plurality of optical fibers and multi-optical fiber connectors; The optical fiber imaging mechanism is arranged at one side of the mechanical inserting core fixing mechanism, is provided with a second adjusting base, moves relative to the mechanical inserting core fixing mechanism along the X-axis, the Y-axis and the Z-axis directions under the adjustment of the second adjusting base, and is used for imaging the end face of the optical fiber to acquire cat eye orientation angle information in the optical fiber; The optical fiber locking mechanism is arranged on the other side of the mechanical lock pin fixing mechanism and is used for locking the position of the optical fiber after the optical fiber is aligned in an angle; the optical fiber rotating mechanism is arranged at one side of the optical fiber locking mechanism, which is away from the mechanical ferrule fixing mechanism, and is used for sequentially rotating each optical fiber so as to perform angle adjustment on each optical fiber; And the controller is electrically connected with the mechanical ferrule fixing mechanism, the optical fiber imaging mechanism, the optical fiber rotating mechanism and the optical fiber locking mechanism and is used for controlling each executing mechanism to realize automatic alignment and locking of the optical fiber based on an image processing result. Optionally, the optical fiber locking mechanism includes: the first fixing seat is arranged at one side of the mechanical ferrule fixing mechanism, which is away from the optical fiber imaging mechanism; the V-shaped groove plate is connected with the first fixing seat and provided with a plurality of first V-shaped grooves which are spaced in parallel, and the first V-shaped grooves are used for accommodating the optical fibers; the first cover plate is connected with the V-shaped groove plate and used for pressing the optical fiber in the first V-shaped groove; The locking cover plate is connected to the V-shaped groove plate in a sliding manner, moves relative to the V-shaped groove plate along the direction of the intervals of the plurality of first V-shaped grooves and is used for locking the positions of the plurality of optical fibers after the plurality of optical fibers are aligned in an angle manner; And the locking driving assembly is connected with the first fixing seat and the locking cover plate and is used for driving the locking cover plate to move relative to the V-shaped groove plate. Optionally, the first cover plate is connected with the V-shaped groove plate through magnetic attraction. Optionally, the number of the locking cover plates is two, the two locking cover plates are a first locking cover plate and a second locking cover plate respectively, and the first locking cover plate and the second locking cover plate are respectively located at two sides of the first cover plate. Optionally, a first guide groove is formed in the first locking cover plate, and a first guide rod is arranged on the V-shap