阅读说明：本技术 氢氧加热光纤熔接机 (Oxyhydrogen heating optical fiber fusion splicer ) 是由 黄勇 杨建华 周东平 于 2019-10-21 设计创作，主要内容包括：本发明公开了一种氢氧加热光纤熔接机,其包括两个光纤托架、两个光电成像单元及加热单元,光纤托架用于定位和固定待熔接的两根光纤,光电成像单元用于拍摄和显示两根光纤进行熔接的端部状态,加热单元包括一个氢气头和一个氧气头,所述氢气头连接至氢气源,所述氧气头连接至氧气源,所述氧气头设在两个光纤托架之间且位于两根光纤进行熔接的端部的正下方,所述氢气头设在两个光纤托架的上方且在加热状态时位于所述氧气头的正上方。本发明的热源长时间稳定、加热熔接过程稳定,对环境没有任何要求,特别适用于室内生产线中,同时只需要提供氢气和氧气,大大减少了熔接过程的生产成本和维护成本,而且加热熔接过程不会产生任何污染,保证了光纤熔接处的强度。(The invention discloses an oxyhydrogen heating optical fiber fusion splicer which comprises two optical fiber brackets, two photoelectric imaging units and a heating unit, wherein the optical fiber brackets are used for positioning and fixing two optical fibers to be fused, the photoelectric imaging units are used for shooting and displaying the end states of the two optical fibers for fusion splicing, the heating unit comprises a hydrogen head and an oxygen head, the hydrogen head is connected to a hydrogen source and connected to an oxygen source, the oxygen head is arranged between the two optical fiber brackets and is positioned right below the end portions of the two optical fibers for fusion splicing, and the hydrogen head is arranged above the two optical fiber brackets and is positioned right above the oxygen head in a heating state. The heat source is stable for a long time, the heating and welding process is stable, no requirement is required for the environment, the heat source is particularly suitable for indoor production lines, only hydrogen and oxygen are required to be provided, the production cost and the maintenance cost in the welding process are greatly reduced, no pollution is generated in the heating and welding process, and the strength of the optical fiber welding position is ensured.)

1. The utility model provides an oxyhydrogen heating optical fiber splicer, its includes two optical fiber bracket, two photoelectric imaging unit and heating unit, the optical fiber bracket is used for the location and fixes two optic fibre of treating the butt fusion, the photoelectric imaging unit is used for shooting and shows that two optic fibre carry out the butt fusion's tip state, a serial communication port, the heating unit includes a hydrogen head and an oxygen head, the hydrogen head is connected to the hydrogen source, the oxygen head is connected to the oxygen source, the oxygen head is established between two optical fiber bracket and is located two optic fibre and carries out the butt fusion's tip under, the hydrogen head is established in the top of two optical fiber bracket and is located when heating state directly over the oxygen head.

2. The fusion splicer according to claim 1, wherein the hydrogen head is mounted on a telescopic mechanism, and in the heating state, the telescopic mechanism moves the hydrogen head to a position directly above the oxygen head, and in the non-heating state, the telescopic mechanism moves the hydrogen head to a position beside the oxygen head.

3. The fusion splicer according to claim 1, wherein the hydrogen head is made of ceramic.

4. The fusion splicer according to claim 1, wherein the heat-resistant temperature of the oxygen head is 300-500 ℃.

5. The fusion splicer according to claim 4, wherein the oxygen head is made of metal or ceramic.

6. The fusion splicer according to claim 1, wherein the hydrogen and oxygen sources are connected to an oxyhydrogen generator.

7. The fusion splicer according to claim 1, wherein the hydrogen head and the oxygen head are each provided with a flow control valve.

8. The fusion splicer according to claim 1, wherein the hydrogen head is provided with an ignition device.

Technical Field

The invention belongs to the field of optical fiber manufacturing, in particular to an oxyhydrogen heating optical fiber fusion splicer, which aims to solve the problem of high maintenance cost caused by frequent replacement of consumable materials of a heating source of the conventional optical fiber fusion splicer.

Background

The optical fiber fusion splicer is a core tool used in the production process of optical fiber communication, optical fiber sensing, optical fiber laser and other equipment, and has the function of mainly fusing (splicing) two optical fibers together. The optical fiber is mainly made of quartz material, and the heating temperature of the optical fiber welding machine at least reaches the melting point (1650 ℃) of the quartz material when two optical fibers are welded together. If it is desired to complete the fusion of two optical fibers instantaneously, the heating temperature is typically close to 3000 ℃.

At present, a heating method generally adopted by an optical fiber fusion splicer is high-voltage electrode discharge, and as shown in fig. 1A and fig. 1B, the heating method is a schematic structural diagram of the fusion splicer adopting high-voltage electrode discharge heating, wherein fig. 1A is a side view of the fusion splicer, and fig. 1B is a top view of the fusion splicer, and the fusion splicer mainly comprises a group of high-voltage electrodes 1, a group of optical fiber brackets 2, and a group of photoelectric imaging units 3 (including CCD or CMOS). When the optical fiber fusion splicer is used for carrying out optical fiber fusion splicing, the high-voltage discharge heating process is an unstable process, and the high-voltage discharge electrodes belong to consumable materials and need to be frequently replaced, so that the equipment maintenance cost is high. More importantly, when the electrode discharges at high voltage, the material particles on the electrode may also splash onto the surface of the fusion spliced optical fiber, which may cause a potential pollution to the fusion spliced optical fiber, and greatly affect the strength of the fusion spliced part of the optical fiber.

In addition, two different heating methods have been developed in recent years. One is to use a U-shaped tungsten filament as a heat source for heating, but the tungsten filament must work in an environment protected by argon, so the optical fiber fusion splicer is very inconvenient to use, and the tungsten filament used for heating needs to be frequently replaced, and the maintenance cost is quite high. In addition, the laser heating method is high in cost and heavy in weight, and the laser needs to be recharged or replaced after being used for a certain time, so that the maintenance cost is high.

Disclosure of Invention

The invention aims to solve the technical problem of providing an oxyhydrogen heating optical fiber fusion splicer, which can solve the problems of high maintenance cost, inconvenience in use and easiness in pollution caused by using a high-voltage electrode or a tungsten wire or a carbon dioxide laser in the conventional optical fiber fusion splicer.

In order to solve the technical problems, the oxyhydrogen heating optical fiber fusion splicer provided by the invention comprises two optical fiber brackets, two photoelectric imaging units and a heating unit, wherein the optical fiber brackets are used for positioning and fixing two optical fibers to be fused, the photoelectric imaging units are used for shooting and displaying the end parts of the two optical fibers for fusion splicing, the heating unit comprises a hydrogen head and an oxygen head, the hydrogen head is connected to a hydrogen source and connected to an oxygen source, the oxygen head is arranged between the two optical fiber brackets and is positioned right below the end parts of the two optical fibers for fusion splicing, and the hydrogen head is arranged above the two optical fiber brackets and is positioned right above the oxygen head in a heating state.

Preferably, the hydrogen head is made of high-temperature-resistant ceramic.

Preferably, the heat-resistant temperature of the oxygen head is 300-500 ℃, and further, the oxygen head is made of metal or high-temperature-resistant ceramic.

Preferably, the hydrogen head is installed on a telescopic mechanism, when in a heating state, the telescopic mechanism drives the hydrogen head to move to a position right above the oxygen head, and when in a non-heating state, the telescopic mechanism drives the hydrogen head to move to one side of the oxygen head.

Preferably, the source of hydrogen and the source of oxygen are connected to a hydrogen and oxygen generator.

Preferably, the hydrogen head and the oxygen head are both provided with flow control valves.

Preferably, the hydrogen head is provided with an ignition device.

Compared with the existing optical fiber fusion splicer, the invention has the following beneficial effects:

firstly, oxyhydrogen heating replaces the discharge heating of a high-voltage electrode commonly used at present, and a hydrogen head and an oxygen head are separately arranged to burn and heat to weld the optical fiber, so that a stable heat source can be generated, impulse force cannot be generated, the whole welding process is kept stable for a long time, the reliable welding of the optical fiber can be ensured, meanwhile, the oxyhydrogen-heated optical fiber welding machine does not adopt any consumable material, only hydrogen and oxygen need to be provided, the maintenance cost is greatly reduced, and no pollution is generated in the whole heating welding process, so that the strength of the optical fiber welding position is ensured;

secondly, oxyhydrogen heating is adopted to replace the existing tungsten filament heating, the argon protection environment required by the tungsten filament heating is not needed in the process of welding the optical fibers by oxyhydrogen combustion heating, and the heating unit does not need to be frequently replaced, so that the use is very convenient, and the maintenance cost is obviously reduced;

thirdly, the heating of the carbon dioxide laser is replaced by oxyhydrogen heating, and only hydrogen and oxygen are needed to be used in the process of welding the optical fiber by oxyhydrogen combustion heating, so that the welding cost and the maintenance cost are greatly reduced.

Drawings

FIG. 1A is a side view of a conventional fusion splicer that employs high voltage electrodes;

FIG. 1B is a top view of a conventional fusion splicer that employs high voltage electrodes;

FIG. 2A is a side view of an oxyhydrogen-heated fusion splicer according to the present invention in an unheated state;

FIG. 2B is a top view of the oxyhydrogen-heated fusion splicer of the present invention in an unheated state;

FIG. 3A is a side view of the oxyhydrogen-heated fusion splicer of the present invention in a heated state;

FIG. 3B is a top view of the oxyhydrogen-heated fusion splicer of the present invention in a heated state.

Wherein the reference numerals are as follows:

1 is a high voltage electrode; 2 is an optical fiber bracket; 3 is a photoelectric imaging unit; 4 is an oxygen head; and 5 is a hydrogen head.

Detailed Description

Other advantages and effects of the present invention will become readily apparent to those skilled in the art from the following detailed description, wherein it is shown in the accompanying drawings, wherein the specific embodiments are by way of illustration. In the following description, specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced or applied in different embodiments, and the details may be based on different viewpoints and applications, and may be widely spread and replaced by those skilled in the art without departing from the spirit of the present invention.

First embodiment

The oxyhydrogen heating optical fiber fusion splicer comprises two optical fiber brackets 2, two photoelectric imaging units 3 and a heating unit, wherein the optical fiber brackets 2 are used for positioning and fixing two optical fibers to be fused, the photoelectric imaging units 3 are used for shooting and displaying the end parts of the two optical fibers to be fused, the heating unit comprises a hydrogen head 5 and an oxygen head 4, the hydrogen head 5 is connected to a hydrogen source, the oxygen head 4 is connected to the oxygen source, the oxygen head 4 is arranged between the two optical fiber brackets 2 and is positioned right below the end parts of the two optical fibers to be fused, the hydrogen head 5 is arranged above the two optical fiber brackets 2 and is positioned right above the oxygen head 4 in the heating state, and the oxyhydrogen heating optical fiber fusion splicer is shown in figures 3A and 3B.

Wherein, the hydrogen head 5 is made of high temperature resistant material, preferably ceramic.

The heat-resistant temperature of the oxygen head 4 is 300-500 ℃, and is generally made of a metal material, such as stainless steel or copper. Of course, high temperature resistant ceramic materials may be used, and those skilled in the art can select the materials according to actual situations.

In the embodiment, the optical fiber is welded by burning and heating the hydrogen provided by the hydrogen head and the oxygen provided by the oxygen head, the whole process is stable, no requirement is required for the environment of the welding process, and the welding device is particularly suitable for indoor production lines. Meanwhile, the optical fiber fusion splicer adopting oxyhydrogen heating does not adopt any consumable material, and only needs to provide hydrogen and oxygen, so that the production cost and the maintenance cost of the fusion splicing process are greatly reduced. More importantly, the whole heating welding process can not generate any pollution, thereby ensuring the strength of the optical fiber welding position.

Second embodiment

On the basis of the first embodiment, the hydrogen head 5 of the present embodiment is mounted on a telescopic mechanism (not shown in the figures), and in the heating state, the telescopic mechanism drives the hydrogen head 5 to move to the position right above the oxygen head 4, as shown in fig. 3A and 3B, and in the non-heating state, the telescopic mechanism drives the hydrogen head 5 to move to one side of the oxygen head 4, as shown in fig. 2A and 2B. In this embodiment, the oxygen head 4 is fixed, and the hydrogen head 5 is movable, so that the placement of the optical fiber is not affected, and the reflected light path of the imaging of the photoelectric imaging unit is not blocked.

In this embodiment, the telescopic mechanism may be of a pneumatic type, for example, by connecting the hydrogen head 5 directly to the piston rod of the cylinder or by other connecting members.

Of course, the telescopic mechanism may also be of an electric type, for example, a stepping motor or a servo motor, and an output shaft of the stepping motor or an output shaft of the servo motor is connected to a ball screw pair (or other mechanism for converting a rotary motion into a linear motion, such as a worm gear mechanism or a cam mechanism, etc.), and a nut of the ball screw pair is directly connected to the hydrogen head or connected through another connecting member.

As shown in fig. 2A and 2B, the optical fiber fusion splicer is in an unheated fusion splice state, and the hydrogen head 5 is located above the oxygen head 4, but the hydrogen head 5 and the oxygen head 4 are not in the same vertical direction, and the hydrogen head 5 is in an initial position.

When heating fusion is required, the hydrogen head 5 is driven by a telescopic mechanism (not shown in the figure) to move to a working position, i.e. between the two optical fiber brackets 2 and directly above the oxygen head 4 (the end of the two optical fibers to be fused), as shown in fig. 3A and 3B.

In the above two embodiments, the hydrogen source and the oxygen source can be independent, such as a hydrogen cylinder and an oxygen cylinder, or the hydrogen head and the oxygen head can be directly connected to a hydrogen-oxygen generator through pipelines, so as to easily supply the gas.

In the above two embodiments, the hydrogen head 5 may be provided with an ignition device, and the hydrogen head 5 and the oxygen head 4 may be provided with flow control valves, such as pneumatic or electric, so as to realize automatic control.

In the use process of the optical fiber fusion splicer, the hydrogen head 5 can be in a long-time ignition state, and the oxygen head 4 can also be in a long-time oxygen supply state, so that the technical personnel in the field can design and control the air supply time, the air supply amount, the ignition time and the like in the combustion heating process of the hydrogen and the oxygen according to actual needs.

The present invention has been described in detail with reference to the specific embodiments, which are only the preferred embodiments of the present invention and are not intended to limit the present invention. Equivalent alterations and modifications made by those skilled in the art without departing from the principle of the invention should be considered to be within the technical scope of the invention.