CN206337169U - A kind of butt fusion tool of preform - Google Patents

Abstract

The utility model discloses a welding tool for an optical fiber prefabricated rod, which comprises a seat body, a first chuck for supporting a first welding piece, a second chuck for supporting a second welding piece, and a heating plate for heating the welding part. The heating device further includes a support seat arranged between the first chuck and the second chuck for supporting the welding piece, and the support seat is installed on the seat body. In the fusion splicing tool for the optical fiber preform, on the basis of the support of the first chuck and the second chuck, a support base is added to at least provide multi-point support for one of the fusion splicing parts, so as to prevent the fusion splicing part from being exposed too long , and bending occurs, and then the problem of insufficient straightness after welding due to bending can be avoided, so the optical fiber preform can effectively solve the problem of poor straightness control of the preform after welding.

Description

A fusion splicing tool for optical fiber preform

technical field

The utility model relates to the technical field of cable manufacturing, in particular to a welding tool for optical fiber preformed rods.

Background technique

In the production process of optical fiber preforms, there are technological processes such as welding handles and butt jointing of two preforms, and the connection method generally adopts fusion splicing. Specifically, if two preforms are welded, a welding tool is generally used. Specifically, the welding tool generally includes a base body, a chuck slidably mounted on the base body, a torch platform on the mounting base body, and a torch platform arranged on the torch platform. blowtorch. There are two chucks, and the two chucks are respectively used to fix the optical fiber preform and enable the preform to rotate. The torch platform is arranged between the two chucks and is used to heat the end of the preform that needs to be welded.

Generally, a preform is fixed by a chuck, but in practice, the preform is often longer, and the longer preform is likely to cause shaking at the end of the preform for welding. Once shaken, it is easy to cause the straightness of the welded preform to fail to meet the requirements.

To sum up, how to effectively solve the problem of poor straightness control after preform welding is an urgent problem for those skilled in the art.

Utility model content

In view of this, the purpose of the present utility model is to provide a fusion splicing tool for an optical fiber preform, which can effectively solve the problem of poor straightness control of the preform after splicing.

In order to achieve the above object, the utility model provides the following technical solutions:

A fusion splicing tool for an optical fiber preform, comprising a base, a first chuck for supporting a first fusion piece, a second chuck for supporting a second fusion piece, and a heating device for heating the fusion splicing part, and It includes a support seat arranged between the first chuck and the second chuck for supporting the welding piece, and the support seat is installed on the seat body.

Preferably, the support base includes a support rod and a graphite V-shaped block at the top of the support rod.

Preferably, both sides of the graphite V-shaped block are provided with fixing blocks for fixing the graphite V-shaped block.

Preferably, the heating device includes a torch support slidingly fitted with the seat body and a torch fixed on the torch support.

Preferably, a base that is slidingly fitted with the base body is also provided, and the support base is installed on the base.

Preferably, the base and the support base are slidably fitted in the vertical direction, and a locking device for preventing relative movement between the base and the support base is also provided.

Preferably, a vertical linear bearing is arranged between the support base and the base.

Preferably, a compression elastic device arranged vertically for guiding in the vertical direction is provided between the support base and the base.

Preferably, the locking device includes a stud relatively fixed to the support seat and a wing nut threadedly connected to the stud, and the wing nut can be rotated relative to the stud to align with the side of the base offset to prevent movement relative to the base.

Preferably, four locking devices are uniformly arranged around the support seat.

The utility model provides a welding tool for an optical fiber preform, specifically, the welding tool includes a base body, a first chuck, a second chuck, a heating device and a support seat. Wherein the seat body is used for installing each component, so that each component maintains a stable positional relationship conveniently. Wherein the first chuck is used to support the first welding part, so that the welding part of the first welding part is lifted to a predetermined height, and the welding end is suspended in the air. Wherein the heating device is used for heating the welding part, so that the first welding part and the second welding part can be welded together through the welding parts opposite to each other. Wherein the supporting seat is arranged between the first chuck and the second chuck to support the welding piece, it can be used to support the first welding piece, it can also be used to support the second welding piece, and a plurality of supporting seats can also be set to respectively support the first welding part and the second welding part.

According to the above technical solution, it can be known that when applying the fusion splicing tool for the optical fiber preform, the first fusion splice is placed on the first chuck and supported by the first chuck, and the second fusion splice is placed on the second chuck , wherein the supporting base is used to support the first welding piece or the second welding piece, preferably the welding piece farther away from the support point, and then turn on the heating device for welding. In the fusion splicing tool for the optical fiber preform, on the basis of the support of the first chuck and the second chuck, a support base is added to at least provide multi-point support for one of the fusion splicing parts, so as to prevent the fusion splicing part from being exposed too long , and bending occurs, which can avoid the problem of insufficient straightness caused by bending, so the optical fiber preform can effectively solve the problem of poor straightness control after the preform is welded.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the structural representation of the welding tool that the utility model embodiment provides;

Fig. 2 is a schematic structural diagram of a support seat provided by an embodiment of the present invention.

The marks in the attached drawings are as follows:

Seat body 1, first chuck 2, second chuck 3, heating device 4, support seat 5, support rod 51, graphite V-shaped block 52, fixed block 53, locking device 54, linear bearing 55, compression elastic device 56. Base 57.

detailed description

The embodiment of the utility model discloses a welding tool for an optical fiber preform, which can effectively solve the problem of poor straightness control after the preform is welded.

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1-Fig. 2, Fig. 1 is a schematic structural diagram of a welding tool provided by an embodiment of the utility model; Fig. 2 is a schematic structural diagram of a support seat provided by an embodiment of the utility model.

In a specific embodiment, this embodiment provides a fusion splicing tool for an optical fiber preform, specifically, the fusion splicing tool includes a base body 1, a first chuck 2, a second chuck 3, a heating device 4 and a support seat 5. Wherein the base body 1 is used for installing various components, so as to maintain a stable positional relationship between the various components.

Wherein the first chuck 2 is used to support the first welding part, so that the welding part of the first welding part is lifted to a predetermined height, and the welding end is suspended in the air. Wherein the second chuck 3 is used to support the second welded part, so that the second welded part is lifted to a predetermined height, the welded end is suspended, and the welded end of the first welded part and the welded end of the second welded part are positioned at the same height. height. It should be noted that when two preformed rods are butted, the first welded part and the second welded part refer to the two preformed rods that need to be welded. There are many ways for the first chuck 2 and the first chuck 2 to support the welded parts. It can be held up for support, or clamped and fixed. When clamping and fixing, the two welded parts should be opposite to the seat body. 1 can be rotated to facilitate the heating device 4 to heat and weld the two.

Wherein the heating device 4 is used for heating the welding parts, so that the first welding part and the second welding part can be welded together. Among them, there are many kinds of heating device 4, which can be electric heating device or gas heating device, but no matter what kind of heating device 4 is used, it should ensure that both the first welding part and the second welding part can be heated to a temperature that can be welded . Specifically, the heating device 4 generally adopts a blowtorch, through which a high-temperature flame is sprayed out for heating. Specifically, the heating device 4 can be made to include a blowtorch support slidingly matched with the seat body 1 and a blowtorch fixed on the blowtorch support. The length of the preform rod, and the sliding direction should be along the extension direction of the preform rod, or the extension direction of other welded parts, so as to adjust the welded parts of different lengths.

Wherein the support seat 5 is arranged between the first chuck 2 and the second chuck 3, for supporting the welding piece, can be used for supporting the first welding piece, can also be used for supporting the second welding piece, and can also set more A supporting seat 5 is used to support the first welding part and the second welding part respectively. Wherein the support seat 5 preferably includes a V-shaped block, so as to facilitate the support of the cylindrical preform rod through the V-shaped block, so as to prevent the welded part from shaking left and right. Wherein the supporting base 5 is installed on the base body 1, it can be a fixed installation, but considering that the positions that may need to be supported for different lengths of preform rods are not determined, based on this, it is preferred here that the preform rods are slidably connected with the base body 1 , and the sliding direction of the sliding connection is the extension direction of the preform.

In this embodiment, when applying the fusion splicing tool for the optical fiber preform, the first fusion splice is placed on the first chuck 2 and supported by the first chuck 2, and the second fusion splice is placed on the second chuck 3 , wherein the support base 5 is used to support the first welding piece or the second welding piece, preferably the welding piece farther away from the support point, and then the heating device 4 is turned on for welding. In the fusion splicing tool for the optical fiber preform, on the basis of the support of the first chuck 2 and the second chuck 3, a support seat 5 is added to at least provide multi-point support for one of the fusion splices, so as to avoid the exposure of the fusion splice If it is too long, it will be bent, and the problem of insufficient straightness caused by bending can be avoided. Therefore, the optical fiber preform can effectively solve the problem of poor straightness control after the preform is fused.

Further, the support seat 5 preferably includes a support rod 51 and a graphite V-shaped block 52 arranged at the top of the support rod 51, so as to support the preform through the graphite V-shaped block 52, which can not only provide better support, but also avoid welding The piece shakes from side to side. Among them, the V-shaped block adopts graphite V-shaped block 52, so that even if the support block is close to the welding part, it can effectively avoid heat transfer to the seat body 1, and the graphite block can withstand high temperature, which can effectively ensure the service life. The V-shaped block refers to a block with a V-shaped groove for support through the V-shaped groove, and it does not limit that the entire block is V-shaped as a whole.

Considering that the graphite V-shaped block 52 is relatively hard and brittle, it is easy to cause cracking or fragmentation due to accidental collision, and most importantly, once it is broken, it will cause great harm to the entire preform rod, so based on this, it is preferred here The both sides of graphite V-shaped block 52 are provided with the fixed block 53 that is used for fixing graphite V-shaped block 52, concrete fixed block 53, can adopt metal block or wooden block, to improve the intensity of graphite V-shaped block 52, both sides are all provided with , and also play the role of clamping the graphite V-shaped block 52, which can further avoid its rupture.

Further, a base 57 can be provided between the support base 5 and the base body 1, that is, the support base 5 is installed on the base 57, and the base 57 is slidingly fitted with the base body 1. Of course, the direction of the sliding fit should also be the extension of the welded part. Direction, to facilitate the adjustment or correction of the position of the support seat 5. Slider guide rail mechanism can be used for convenient sliding fit, and the above-mentioned blowtorch support and the base 57 can be slidably matched with the same guide rail on the support base 5, and further, the first chuck 2 and the second chuck can also be 3 is also slidably matched with the guide rail to ensure that the base 57, the torch support, the first chuck 2 and the second chuck 3 can move arbitrarily in the extending direction of the guide rail.

Further, the base 57 can be slidably fitted with the support base 5 in the vertical direction, and a locking device 54 for preventing relative movement between the base 57 and the support base 5 is provided. So that the position of the support seat 5 relative to the base 57 can be adjusted in the vertical direction, and when adjusted to the required height, it can be locked by the locking device 54, so that the base 57 and the support seat 5 can be opposite to each other at this time. fixed. And if it is not adjustable, in practice, because the support block is worn, or the first chuck 2 and the second chuck 3 are worn, or even because the straightness of the preform itself is not enough, at this time, the support of the support seat 5 will be It is difficult to meet the requirements, but the height of the support seat 5 is adjustable, so that it can be adjusted, and then the correction of the support height can be realized to ensure the support effect.

Among them, the support seat 5 and the base 57 can directly realize the sliding fit directly through the clearance fit, but considering the accuracy of the support, the linear bearing 55 is preferably provided here, that is, a vertically arranged bearing is provided between the support seat 5 and the base 57. The linear bearing 55, and the two installation parts of the linear bearing 55 are relatively fixed to the support seat 5 and the base 57 respectively, which not only can play the role of precise guidance, but also can play the role of reducing friction to facilitate sliding.

Further, a vertically arranged compression elastic device 56 may also be provided between the support base 5 and the base 57, specifically a compression spring may be used, and of course other structures may also be used. When adjusting, the elastic device 56 can be compressed to push the support seat 5 against the welded parts, which not only avoids the inconvenience of manual operation, but also facilitates the control of the resisting force, without friction between the welded parts due to shaking, and can ensure Be in the dead state all the time, then lock locking device 54 again at this moment, then can effectively guarantee that the height of support block just meets requirement.

Further, the locking device 54 may include a stud relatively fixed to the support base 5 and a wing nut threadedly connected to the stud, and the wing nut can rotate relative to the stud to abut against the side of the base 57 to prevent The nut moves relative to the base 57 , thereby preventing the support base 5 from moving relative to the base 57 in the vertical direction. That is, the wing nut rotates relative to the stud, and under the limitation of the thread, the wing nut will move relative to the stud, and will be offset against the side of the base 57 after moving a certain path, and under the action of static friction or under the support force Under the action of the support seat 5 can be prevented from moving relative to the base 57. Specifically, the studs can be arranged horizontally and extend to the outside through the base 57 , while the wing nuts are arranged on the outside, and the wing nuts can rotate against the outer surface of the base 57 . Of course, the locking device 54 can also use a locking screw, but the locking screw is inconvenient to operate, and it is easy to scratch the surface of the support seat 5 . At the same time, it is considered that in actual operation, the installation position of the welding tool may cause inconvenience to the operation of the locking device 54. Based on this, four locking devices 54 can be provided, and the four locking devices 54 are uniformly arranged around the support base 5 , that is, pairwise symmetrical settings. It not only reduces the locking requirement of a single locking device 54 to protect the base 57, but also adapts to operations at different angles.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A fusion splicing tool for an optical fiber preform, comprising a base, a first chuck for supporting a first fusion splice, a second chuck for supporting a second fusion splice, and a heating device for heating the fusion splice , is characterized in that it also includes a support seat arranged between the first chuck and the second chuck for supporting the welding piece, and the support seat is installed on the seat body. 2 . The welding tool according to claim 1 , wherein the support seat comprises a support rod and a graphite V-shaped block provided with a top end of the support rod. 3 . 3. The welding tool according to claim 2, characterized in that, both sides of the graphite V-shaped block are provided with fixing blocks for fixing the graphite V-shaped block. 4 . The welding tool according to claim 3 , wherein the heating device comprises a torch support slidingly fitted with the seat body and a torch fixed on the torch support. 5. The welding tool according to any one of claims 1-4, characterized in that it is further provided with a base that is slidingly fitted with the base, and the support base is installed on the base. 6 . The welding tool according to claim 5 , wherein the base and the support base are slidably fitted in the vertical direction, and a locking device for preventing relative movement between the base and the support base is also provided. . 7 . The welding tool according to claim 6 , wherein a linear bearing arranged vertically for guiding in a vertical direction is provided between the support base and the base. 7 . 8 . The welding tool according to claim 7 , wherein a vertical compression elastic device is arranged between the support base and the base. 9. The welding tool according to claim 8, wherein the locking device comprises a stud relatively fixed to the support seat and a wing nut screwed to the stud, the wing nut It can be rotated relative to the stud to abut against the side of the base to prevent movement relative to the base. 10 . The welding tool according to claim 9 , wherein four locking devices are evenly arranged around the support seat. 11 .