CN108700710B - Optical fiber cutting method - Google Patents
Optical fiber cutting method Download PDFInfo
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- CN108700710B CN108700710B CN201780006629.9A CN201780006629A CN108700710B CN 108700710 B CN108700710 B CN 108700710B CN 201780006629 A CN201780006629 A CN 201780006629A CN 108700710 B CN108700710 B CN 108700710B
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- optical fiber
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/245—Removing protective coverings of light guides before coupling
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/25—Preparing the ends of light guides for coupling, e.g. cutting
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
A method of cleaving an optical fiber, comprising the steps of: A. stripping the external structure of the optical fiber (3) to ensure that only the coating layer (2) is reserved outside the section where the optical fiber needs to be cut; B. clamping one end of the optical fiber (3) and stripping a coating layer (2) around the position of the optical fiber to be cut; C. the two ends of the segment are clamped, the clamping piece (1) exerts pulling force on the optical fiber (3), and the optical fiber is cut at the position, needing to be cut, of the optical fiber (3) with the coating layer (2) stripped. The precision requirement of the clamping surface of the clamping piece (1) is reduced, so that the cost is reduced, the requirement on the operating environment during cutting is reduced, the success rate of cutting the optical fiber (3) is increased, and the efficiency is increased.
Description
Technical Field
The invention relates to the field of optical fiber fusion, in particular to an optical fiber cutting method.
Background
The current optical fiber cleaving technology is largely divided into two types.
Firstly, a knife edge is scribed on the surface of the optical fiber by a knife, and then pressure is applied along the knife edge from the back of the knife edge, so that the optical fiber is cut off under the action of the pressure;
and the other method is that certain pulling force is firstly applied to the two ends of the optical fiber, then a knife edge is pressed on the surface of the optical fiber by a knife, the knife edge is continuously deepened in the feeding process of the knife, and when the certain depth is reached, the optical fiber is broken under the action of the pulling force on the two sides.
Both methods are used, based on the fact that the coating of the fiber is completely stripped, and the fiber after stripping becomes very brittle and has a diameter of only 125 microns (one fiber, the exemplary dimensions are for the purpose of illustrating the thinness of the fiber);
in the first method, the optimal cutting depth is generally about 1/10 of the diameter of the optical fiber, so that the requirements on the appearance of the cutting knife and the relative height between the guide rail and the rubber of the clamping surfaces at two sides are strict, the clamping surfaces at two sides of the optical fiber (the optical fiber is provided with the clamping surface, and the clamp is also provided with the clamping surface) are clamped by the clamp, and the clamp is contacted with the clamping surface of the optical fiber through the rubber), and the section cut by too deep or too shallow is not neat enough, so that the welding quality is influenced;
firstly, when the climate changes, the hardness of the rubber on the two sides may change, so that the clamping height changes, further the cutting depth changes, the cutting effect is poor, and the welding quality is affected; the other situation is that the height of the blade is changed after the blade or the sliding rail is abraded, the blade needs to be replaced for readjustment, the adjustment is usually very troublesome, field construction personnel are difficult to master, the welding quality can also be influenced, most of cutting knives on the market at present adopt the method, the problems exist, the problems are not solved all the time, the transmission rate loss of subsequent optical fibers is caused to be very large finally due to the influence on the welding quality, and the loss cannot be borne particularly on a dry line.
Secondly, pulling force is applied to two sides of an optical fiber in advance, then the optical fiber is fed to generate a knife edge, the diameter of the optical fiber is only 125 micrometers, and the optical fiber becomes very fragile and fragile after a coating layer is stripped, the optical fiber needs to be clamped and not to be clamped, the material selection requirement is very high, when the optical fiber is clamped, a clamping surface needs to be made very smooth, and meanwhile, enough friction force needs to be provided, so that the difficulty is very high, and most of the existing optical fiber clamping devices adopt a high-precision and expensive v-shaped groove clamping surface (a clamp is different from the first mode in that the clamping surface clamps the surface of the optical fiber and simultaneously pulls the surface of the optical fiber like two sides, so that the clamping surface is not an elastic body and is a hard surface with high precision); for the cutter part, only the ultrasonic cutter and some very high-end cutters adopt the method, and the price is dozens of times more expensive than that of the optical fiber cutter adopting the first method.
Even if the high-precision and expensive v-groove clamping surfaces are adopted, the clamping surfaces must be cleaned at any time in use, dust slightly falls on the clamping surfaces, the clamping surfaces are extruded by the dust during clamping, large stress is caused to the corresponding part of the optical fiber, which is in contact with the dust, the optical fiber is broken, and the requirement on the operating environment is extremely high;
in addition to the problem, the non-ultrasonic cutter is a cutter which presses a cutter edge on the surface of the optical fiber under the action of pressure after the optical fiber is tensioned, so the requirement on the cutter is very high, only few manufacturers can machine the cutter with the precision at present, so the cutter is not popularized in the market at present, and the machining difficulty is too high, so the price is high.
Meanwhile, in some patents, a method for cutting a coating layer without peeling is also mentioned, but the current optical fiber fusion splicer only can use optical fibers with coating layers peeled off in the main stream, and most of the optical fibers cut by the method cannot be used by the optical fiber fusion splicer;
even if the optical fiber is cut out firstly by the method and then the coating layer is stripped, after cleaning, coating layer residues can be gathered on the end face of the optical fiber at a high probability, the optical fiber is difficult to remove even if alcohol is adopted, the electric quantity for pre-discharge cleaning is difficult to control, the coating layer residues are usually burnt into protrusions on the end face of the optical fiber, the welding quality is affected, the transmission rate loss of the subsequent optical fiber is high, and the subsequent optical fiber cannot bear the high loss particularly on a dry line.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide the optical fiber cutting method which can reduce the precision requirement of the clamping surface of the clamping piece so as to reduce the cost, reduce the requirement on the operating environment during cutting so as to increase the success rate of optical fiber cutting and further increase the efficiency and reduce the cost.
In order to achieve the purpose, the invention adopts the technical scheme that:
a method of cleaving an optical fiber, comprising the steps of:
A. stripping the external structure of the optical fiber to ensure that only the coating layer is reserved outside the section where the optical fiber needs to be cut;
B. clamping at least one end of the optical fiber, and stripping a coating layer around the position of the optical fiber to be cut;
C. and clamping two ends of the section and applying a pulling force to the optical fiber by the clamping piece, and cutting the optical fiber at the position, needing to be cut, of the optical fiber with the coating layer stripped.
The method is mainly different from the prior art in that when the coating layer is stripped, only one part of the middle part of the coating layer is stripped, then clamping pieces at two ends of the coating layer are clamped on the coating layer which is not stripped, and the optical fiber is tensioned;
compared with the first mode in the background technology, the first mode is to cut after clamping, and then apply pressure to the back edge of the knife edge to break the optical fiber, so the clamping of the optical fiber needs to adopt an elastic body (rubber) to bear the force in the radial direction of the optical fiber which is applied to the rubber when the pressure is applied to the back edge of the knife edge, so as to prevent the optical fiber from breaking, therefore, a series of problems in the background technology can exist;
but because it strips the coating, only strip a part in the middle of, the holder centre gripping at both ends is on the coating that is not stripped during the centre gripping, compare the second mode among the background art, because through coating centre gripping optic fibre, do not directly centre gripping to the optic fibre surface, the clamping face requirement of holder then need not reach the V type groove clamping face that the high accuracy is expensive in the background art as high, can reach the effect that the centre gripping does not break optical fibre, can greatly reduced cost, simultaneously, also greatly reduced to the operating environment requirement, even there is the dust to fall on the clamping face, because through coating centre gripping optic fibre, concentrated stress when the centre gripping that the dust brought can be consumed by the coating, can not direct contact to the optic fibre surface, optic fibre can not break.
In a preferred embodiment of the present invention, in step B, C, the surfaces for clamping both ends of the segment are hard surfaces, which provides a better tension effect for the optical fiber.
As a preferable embodiment of the present invention, in step B, C, the optical fiber is cut to a predetermined depth and then pulled apart while preventing the optical fiber from being pinched off by maintaining the clamping force of the optical fiber constant when clamping both ends of the segment.
As a preferred embodiment of the present invention, in the step C, when the optical fiber is cut, specifically: compared with the second type of cutter in the background technology, the cutter is kept rotating, so that the optical fiber is not pressed out of the cutter edge by pressure as in the background technology (the cutter in the background technology is very sharp, high in processing precision and high in cost), the processing requirement of the disk cutter is reduced, the cost is reduced, compared with an ultrasonic cutter, the cost is much lower, and the cutter rotation is proposed in 201210539579X, 201280013805.9, but the purpose is to replace a cutting surface and not to form cutting by rotation.
As a preferred embodiment of the present invention, in step a, before the optical fiber external structure is stripped, the external color and the code of the optical fiber are identified by using the camera device of the mobile terminal to form the feature data, the type of the optical fiber is determined according to the feature data, and then the type information of the optical fiber is transmitted to the cutting knife, so that the cutting knife in step B, C correspondingly adopts the processing parameters matched with the optical fiber, for example, if the mobile terminal is a mobile phone, the data originally required in the cutting knife can be processed by an external device, the manufacturing requirement of the cutting knife is reduced, even the original CPU in the cutting knife is cancelled, and the cost is reduced.
As a preferred scheme of the present invention, in step B, the surface of the optical fiber of the stripped portion is cleaned with alcohol after the coating layer is stripped, so that the surface of the optical fiber is cleaner, and the subsequent cutting and welding effects are better.
The invention has the beneficial effects that:
the method is mainly different from the prior art in that when the coating layer is stripped, only one part of the middle part of the coating layer is stripped, then clamping pieces at two ends of the coating layer are clamped on the coating layer which is not stripped, and the optical fiber is tensioned;
compared with the first mode in the background technology, the first mode is to cut after clamping, and then apply pressure to the back edge of the knife edge to break the optical fiber, so the clamping of the optical fiber needs to adopt an elastic body (rubber) to bear the force in the radial direction of the optical fiber which is applied to the rubber when the pressure is applied to the back edge of the knife edge, so as to prevent the optical fiber from breaking, therefore, a series of problems in the background technology can exist;
but because it strips the coating, only strip a part in the middle of, the holder centre gripping at both ends is on the coating that is not stripped during the centre gripping, compare the second mode among the background art, because through coating centre gripping optic fibre, do not directly centre gripping to the optic fibre surface, the clamping face requirement of holder then need not reach the V type groove clamping face that the high accuracy is expensive in the background art as high, can reach the effect that the centre gripping does not break optical fibre, can greatly reduced cost, simultaneously, also greatly reduced to the operating environment requirement, even there is the dust to fall on the clamping face, because through coating centre gripping optic fibre, concentrated stress when the centre gripping that the dust brought can be consumed by the coating, can not direct contact to the optic fibre surface, optic fibre can not break.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention during cutting;
the labels in the figure are: 1-clamping piece, 2-coating layer, 3-optical fiber and 4-disc blade.
Detailed Description
The present invention will be described in further detail with reference to examples and embodiments. It should be understood that the scope of the above subject matter of the present invention is not limited to the following examples, and any technique realized based on the summary of the present invention is within the scope of the present invention.
Example 1
A method of cleaving an optical fiber, comprising the steps of:
A. identifying the external color and the code of the optical fiber through a camera device of the mobile terminal to form characteristic data, judging the type of the optical fiber according to the characteristic data, transmitting the type information of the optical fiber to a cutter, and performing a next procedure by the cutter by adopting processing parameters corresponding to the type of the optical fiber;
starting to strip the external structure of the optical fiber, so that only the coating layer is reserved outside the section where the optical fiber needs to be cut;
B. clamping at least one end of the optical fiber (only one end can be clamped to strip the coating layer 2), stripping the coating layer 2 around the position where the optical fiber needs to be cut, and cleaning the surface of the stripped optical fiber 3 with alcohol;
C. applying a pulling force to the optical fiber 3 through the clamping piece 1 clamping two ends of the segment (in fig. 1, the separation between the clamping piece 1 and the coating layer 2 is only used for showing a clear structure and a relative position in the figure, in the actual use process, the clamping piece 1 is in contact with the coating layer 2, the clamping surface of the clamping piece 1 is a hard surface), wherein the pulling force is a constant force, and the optical fiber 3 is cut at the position, needing to be cut, of the optical fiber with the coating layer 2 stripped;
in step B, C, the clamping force applied to the optical fiber by the clamping member in step C is a constant force (the clamping force is a constant force when clamping the same type of optical fiber, specifically, the clamping force that can be matched for all types of optical fibers is in the range of 6 to 10 newtons, for example, the clamping force is a constant force when clamping a certain type of optical fiber, and the clamping force is a constant force when clamping another type of optical fiber), and the pulling force applied to the optical fiber by the clamping member in step C is a constant force (the pulling force is a constant force when pulling the same type of optical fiber, for example, for a single-mode optical fiber with a diameter of 125 μm after stripping a coating layer, the selectable range of the pulling force is 2 to 2.5 newtons, and for this optical fiber, the pulling force in the range of 2 to 2.5 newtons can be performed, but the constant pulling force is arbitrarily maintained);
when the cutting process is performed in step C, the disc blade 4 is used to gradually approach the optical fiber 3 for cutting (as shown in fig. 1), and the disc blade 4 is kept in a state of rotating around its own axis.
Claims (6)
1. An optical fiber cleaving method, comprising the steps of:
A. stripping the external structure of the optical fiber to ensure that only the coating layer is reserved outside the section where the optical fiber needs to be cut;
B. clamping at least one end of the optical fiber, and stripping a coating layer around the position of the optical fiber to be cut;
C. the two ends of the segment are clamped, the clamping pieces exert pulling force on the optical fiber, the clamping pieces at the two ends are clamped on the coating layer which is not stripped, and the optical fiber is cut at the position, needing to be cut, of the optical fiber with the coating layer stripped.
2. The method of claim 1, wherein in step B, C, the surfaces for clamping the two ends of the segment are hard surfaces.
3. The method of claim 1, wherein the step B, C is performed by clamping the ends of the segment with a constant clamping force.
4. The optical fiber cutting method according to claim 1, wherein in the step C, when the optical fiber is cut, specifically: and a disc blade is adopted to gradually approach the optical fiber for cutting, and the disc blade is kept in a state of rotating around the axis of the disc blade.
5. The method according to claim 1, wherein in step a, before the optical fiber external structure is stripped, the external color and code of the optical fiber are identified by a camera device of the mobile terminal to form feature data, the type of the optical fiber is determined according to the feature data, and then the type information of the optical fiber is transmitted to the cutter, so that the cutter in step B, C correspondingly adopts the processing parameters matched with the optical fiber.
6. The method according to claim 1, wherein in step B, the surface of the optical fiber is cleaned with alcohol after the coating layer is stripped.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2017/098403 WO2019036888A1 (en) | 2017-08-22 | 2017-08-22 | Optical fiber cleaving method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108700710A CN108700710A (en) | 2018-10-23 |
| CN108700710B true CN108700710B (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780006629.9A Active CN108700710B (en) | 2017-08-22 | 2017-08-22 | Optical fiber cutting method |
Country Status (2)
| Country | Link |
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| CN (1) | CN108700710B (en) |
| WO (1) | WO2019036888A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109514641B (en) * | 2018-12-12 | 2024-03-05 | 南京吉隆光纤通信股份有限公司 | Optical fiber ultrasonic cutting tool bit device |
| CN113021504B (en) * | 2021-03-12 | 2022-06-10 | 驻马店职业技术学院 | Instrument is shelled to computer fiber optic cable structure of registering one's residence multirow |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004271637A (en) * | 2003-03-05 | 2004-09-30 | Fujikura Ltd | Optical fiber cutting machine |
| JP4775084B2 (en) * | 2006-04-10 | 2011-09-21 | 住友電気工業株式会社 | Connector assembly method |
| JP5982717B2 (en) * | 2012-09-28 | 2016-08-31 | Ｓｅｉオプティフロンティア株式会社 | Optical fiber cutter |
| CN203133313U (en) * | 2013-01-09 | 2013-08-14 | 王京宁 | Covered wire cable cutting device |
| CN104330849A (en) * | 2014-10-20 | 2015-02-04 | 大豪信息技术（威海）有限公司 | Short-distance optical fiber cutter knife |
| CN204462444U (en) * | 2015-01-08 | 2015-07-08 | 任金淼 | Optical fiber or capillary surface coat divest machine |
| CN106338796A (en) * | 2015-07-17 | 2017-01-18 | 泰科电子(上海)有限公司 | Optical fiber cutting method and optical fiber cutting equipment |
| CN106646745B (en) * | 2015-11-02 | 2020-01-14 | 中国兵器装备研究院 | Optical fiber cutting method |
| CN205809346U (en) * | 2016-07-06 | 2016-12-14 | 莱特尔科技（深圳）有限公司 | A kind of fibre cladding power stripper |
| CN206161893U (en) * | 2016-09-22 | 2017-05-10 | 武汉锐科光纤激光技术股份有限公司 | Automatic equipment of optic fibre middle section coat strips |
| CN106526749A (en) * | 2017-01-22 | 2017-03-22 | 王淑珍 | Optical fiber cutting device |
| CN207164303U (en) * | 2017-08-22 | 2018-03-30 | 四川灼识科技股份有限公司 | A kind of fiber cutter |
| CN107479131A (en) * | 2017-08-22 | 2017-12-15 | 四川灼识科技股份有限公司 | A kind of fiber spinning cutting method |
-
2017
- 2017-08-22 WO PCT/CN2017/098403 patent/WO2019036888A1/en unknown
- 2017-08-22 CN CN201780006629.9A patent/CN108700710B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019036888A1 (en) | 2019-02-28 |
| CN108700710A (en) | 2018-10-23 |
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