CN109648412A

CN109648412A - A kind of alignment adjustment device for optical fiber grinding core system

Info

Publication number: CN109648412A
Application number: CN201811521222.2A
Authority: CN
Inventors: 苑立波; 鲍旭辉; 杨世泰
Original assignee: Guilin University of Electronic Technology
Current assignee: Guilin University of Electronic Technology
Priority date: 2018-12-12
Filing date: 2018-12-12
Publication date: 2019-04-19

Abstract

The invention provides a coaxiality adjusting device for an optical fiber tapering system. It is characterized in that it is mainly composed of a device shell 1 , a wedge rod 2 , an adjustment core 3 , an adapter 4 , a silicone rod 5 and a thin tube 6 . There are screw holes on the shell, and the longitudinal displacement of the wedge rod is adjusted by the screws. Because the adjustment core has an inclined surface that fits with the wedge rod, the adjustment core will generate lateral displacement when the longitudinal displacement of the wedge rod changes, which in turn drives the displacement of the thin tube and adjusts the coaxiality of the fiber end. The invention has simple structure and strong operability, and can provide convenience for the optical fiber taper grinding system.

Description

A kind of alignment adjustment device for optical fiber grinding core system

(1) technical field

The present invention relates to a kind of alignments for optical fiber grinding core system to adjust device, relates generally to optical fiber micro Process neck Domain.

(2) background technique

Optical fiber grinding core is modern optical fibre device and the very important manufacturing process of optical fiber technology.Optical fiber probe, optical fiber optical tweezers Equal field fibers study the support for be unableing to do without optical fiber grinding core technology.A kind of alignment tune of efficient, simple optical fiber grinding core system Engagement positions can effectively improve the working efficiency of grinding core system.Existing optical fiber grinding core system coaxial adjusts part and uses class Like the clamping device of drill bit, lacks fine-tuning capability, influence the efficiency and effect of optical fiber end grinding core.Some can be with axis adjustment device Meet the needs of fine tuning, but the structure of these devices is relative complex, difficulty of processing is high, the cost of whole system is also difficult to drop It is low.

The invention discloses a kind of alignments for optical fiber grinding core system to adjust device, can be used for the needs such as optical fiber probe In the grinding core processing of the optical fiber end processing frustum of a cone.The configuration of the present invention is simple compared with prior art realizes the mode with axial adjustment It is more convenient, while degree of regulation can quickly be adjusted by replacing the tapered bar of different inclined-plane gradients with core, be conducive to drop Low optical fiber grinding core installation cost.Adapter can improve the whole of optical fiber end grinding core system with fast adaptation various sizes motor interface Body running efficiency.

(3) summary of the invention

The present invention is intended to provide a kind of alignment for optical fiber grinding core system adjusts device.The apparatus structure is simple, together When coaxial degree of regulation can be improved.

It is an object of the present invention to what is be achieved:

This fiber-coaxial adjusts device mainly by shell 1, tapered bar 2, adjustment core 3, adapter 4, silica gel block 5 and tubule 6 Composition.

Shell is connected with adapter by screw thread in the system, adapter also by screw thread and optical fiber end grinding system step It is connected into electrode.There is design to have protruding portion (front end prominent 7) in housing forward end, it is intended to increase available optical fiber end burr angle, The reliability of increase system.Tapped through hole, threaded hole and device line of centres phase there are two being opened on the end plane of protruding portion Mutually vertical, enclosure interior is provided with groove at the corresponding position of threaded hole, as the track of tapered bar sliding, then cooperates corresponding spiral shell Silk (being also possible to other propulsion modes) can be the movement of tapered bar holding meanss axial direction.It is also provided on the opposite of tapered bar track recessed Slot, this is the trapped orbit of silica gel bar.The present apparatus is due to being to push core to generate displacement by tapered bar and then adjust fiber position, institute Power (the hereinafter referred to as backhaul that adjusting core is retracted to tapered bar direction when the Joint core heart pushes is exchanged to need one to loosen in tapered bar Power).The present apparatus, which is selected, compresses a silica gel bar on tapered bar opposite to provide reverberation matrix method.

Adjusting core is process by a small cylinder, a through-hole is opened in small column center, by tubule Fixed tubule is fixed with a ceramic insertion core at grinding core end in through-holes, for the fixed optical fiber for needing grinding core.In the another of inclined-plane Two vertical planes are cut out on one side, and the reverberation matrix method for avoiding core from being compacted rear silica gel bar is uneven.

As tapered bar with the bevel inclination angle of adjustment core is, the agreeing with of the two can guarantee device may be at by The state of compression, degree of regulation are guaranteed.

The adjusting force of device axial 24 is converted to using tapered shaft inclined-plane 16 adjusting force of device radial 25.According to inclined-plane Inclined degree difference can change be adjusted axially displacement and radiai adjustment displacement ratio, zoom in or out device adjust essence Degree.

It is silica gel block that the part of reverberation matrix method is provided in the present apparatus.Adjustment core is subjected to displacement when tapered bar squeezes adjustment core When, silica gel bar corresponding with tapered bar is affected by extruding.When the screw for withstanding the tapered bar is relaxed, what silica gel was extruded Stress is released, and pushes adjustment core to tapered bar direction, realizes the reverberation matrix method effect of regulating device.

(4) Detailed description of the invention

Fig. 1 is the overall package schematic diagram of device.1 is device housing, and 2 be tapered bar, and 3 be adjustment core, and 4 be adapter, 5 be silica gel block, and 6 be tubule.

Fig. 2 is the detail view of crust of the device 1.7 be front end protrusion, and 8 be threaded hole, and 9 be switching screw thread, and 10 be tapered bar limit Position groove, 11 be silica gel limiting groove.

Fig. 3 is adjustment core detail view.12 be center through hole, and with tubule, ceramic insertion core cooperation can protect and fix light Fibre, 13 be that instrument bevel matches with tapered bar inclined-plane gradient, and degree of can control degree of regulation, it is by justifying that 14, which be core main body, Cylinder is process, and 15 be cutting plane, provides reverberation matrix method after can compressing with silica gel bar.

Fig. 4 is the detail view of tapered bar.16 be the inclined-plane mutually agreed with adjusting core.Bevel angle determines degree of regulation.

Fig. 5 is adapter schematic diagram.20 be the partition between the screw thread of adapter two sides.

Fig. 6 is the schematic diagram of device work.17 be processed optical fiber, and 18 be ceramic insertion core, and 19 be to be processed to come out Conical fiber end, 21 be fine sandpaper.22 be processed optical fiber end.27 be the entirety rotation under motor drive with axis adjustment device Turn direction.

Fig. 7 is the working principle diagram of tapered bar and core in device.23 be inner walls, and 24 be the propulsion that screw gives tapered bar Power (device is axial), 25 be the direction of motion (device radial) of the core in the case where tapered bar and shell squeeze, and 26 be bottom plate, for limiting The longitudinal movement of core.

Fig. 8 is grinding core system main composition schematic diagram.28 be rotation table device, and 29 be fine sandpaper, and 30 be that motor is adjusted with coaxial The threaded connection place of regulating device, 31 be stepper motor.

(5) specific embodiment

Below with reference to specific embodiment and attached drawing, the present invention is further explained.

Fig. 6 gives the embodiment section analysis diagram of this grinding core system fiber-coaxial adjustment device.Optical fiber 17 is from tubule In pass through, the ceramic insertion core 18 for being fixed on tubule one end is fixed.Tubule is fixed at the central through hole 12 of adjustment core. 4 grooves are provided with altogether inside housings, are respectively pressed into two tapered shafts 2 in two grooves 10 corresponding with threaded hole, in addition Two grooves 11 are then pressed into silica gel bar 5.The adjustment core 3 for being inserted into tubule is pushed between silica gel bar and tapered shaft.Utilize shell On screw thread 9 adapter 4 and shell 1 are combined, the partition 27 in adapter center is tightly bonded with adjustment core bottom, Avoid the axial displacement of adjustment core.Device after combination is connected by screw thread with the stepper motor of grinding core device, by stepping Motor driving device rotates integrally.

In optical fiber fixed using ceramic insertion core, optical fiber should expose the processing part of 1cm or so.Processing end is attached to fine sand On paper 20.When the rotation of 31 driving device of stepper motor, optical fiber will slowly be ground taper.

Fig. 7 gives device and realizes the schematic illustration adjusted to fiber-coaxial, under the fixation of ceramic insertion core, light The processing end of fibre exposing ceramic insertion core 18 and tubule are coaxial, and tubule is fixed in adjustment core center through-hole.Work as adjusting screw When inwardly promoting 24, tapered shaft is limited by shell cell wall 23, is moved straight down.On tapered shaft inclined-plane and adjust core inclined-plane Under effect, tapered shaft forces adjustment core displacement.Again because adjustment core bottom end is fitted closely with adapter intermediate bulkhead 20, adjust Whole core can only horizontal direction displacement 25.It is assumed that 16 opposed vertical face angle degree of tapered shaft inclined-plane is θ, when tapered shaft is axially promoting position When moving y, adjustment core horizontal direction displacement x is obtained by following formula:

X=y*tan θ

It is possible thereby to find that the bevel angle of tapered shaft determines adjusting screw screw-in depth and adjusts between core lateral displacement Conversion proportion, and then influence package unit degree of regulation.

In actual device, horizontal direction direction of displacement 25 has the silica gel bar 5 of one piece of compression, when adjusting screw is reversely adjusted When, reversed horizontal displacement occurs for the elastic potential energy that silica gel bar is saved bit by bit during being compacted before discharging, adjustment core, and still By silica gel bar, tapered shaft and adapter partition are compressed.

Fig. 8 gives the schematic diagram of optical fiber grinding core system work.After the alignment of optical fiber has been adjusted, by optical fiber side pressure It is adjusted to suitable angle on fine sandpaper 29, and by optical fiber (this step is completed often through the clamping device of motor 31).So After start optical fiber grinding core operation, at the uniform velocity rotated under the drive of stepper motor 31 with axis adjustment device, drive optical fiber at the uniform velocity rotate. Simultaneously under the drive of rotation table device 28, fine sandpaper 29 also can at the uniform velocity rotate.When the alignment of light rotation meets required precision When can grind uniform frustum in optical fiber end.

Claims

1. A coaxiality adjustment device for an optical fiber taper system. It is characterized in that it consists of a shell 1 , a wedge-shaped rod 2 , an adjustment core 3 , an adapter 4 , a silicone rod 5 and a thin tube 6 . In the device, the slot opened on the inner cavity of the housing 1 can limit the movement direction of the wedge rod 2 and the silicone rod 5 . Adjust the inclination angle of the two inclined surfaces 13 of the core to match the angle of the inclined surface 16 of the wedge-shaped rod. Adjust the plane position of the core 3 through the movement of the two wedge rods. To achieve the coaxial adjustment of the optical fiber.

2 . The housing according to claim 1 , wherein a portion of the front end of the housing protrudes to increase the usable optical fiber taper angle. 3 .

3. The adjustment core and the wedge-shaped rod according to claim 1, wherein the angles of the inclined surfaces 13 and 16 are the same.

4 . The coaxial adjustment method according to claim 1 , wherein the adjustment force in the axial direction 24 of the device is converted into the adjustment force in the radial direction 25 of the device by using the wedge-shaped rod inclined surface 16 . The ratio of the axial adjustment displacement to the radial adjustment displacement can be changed according to the inclination of the inclined plane, and the adjustment accuracy of the device can be enlarged or reduced.