CN109719647B - Clamping device for fixing MT and MPO core insert of multi-core interferometer - Google Patents
Clamping device for fixing MT and MPO core insert of multi-core interferometer Download PDFInfo
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- CN109719647B CN109719647B CN201910069833.6A CN201910069833A CN109719647B CN 109719647 B CN109719647 B CN 109719647B CN 201910069833 A CN201910069833 A CN 201910069833A CN 109719647 B CN109719647 B CN 109719647B
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- lock pin
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- 239000013307 optical fiber Substances 0.000 claims abstract description 36
- 238000005259 measurement Methods 0.000 abstract description 7
- 230000003287 optical effect Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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Abstract
The invention discloses an optical fiber connector ferrule clamping device, which comprises a body, a first supporting part arranged on the body and at least one first spring arm arranged on the body and positioned on the opposite side of the first supporting part, wherein a ferrule of an optical fiber connector is clamped between the at least one first spring arm and the first supporting part, and the at least one first spring arm clamps two side parts of the ferrule; the number of the first elastic arms is two, one ends of the two first elastic arms are respectively arranged on the body, and the other ends of the two first elastic arms respectively clamp the two side parts of the lock pin. In the invention, as the first elastic arm clamps the two side parts of the lock pin, the pressure of the elastic arm on the middle part of the lock pin is reduced, the deformation of the middle part of the lock pin is reduced, the influence of the elastic arm on the middle part of the lock pin is further reduced, and the position change of the optical fiber in the middle of the lock pin is further reduced, thereby improving the measurement accuracy.
Description
Technical Field
The invention relates to the technical field of equipment for fixing an optical fiber connector ferrule, in particular to an optical fiber connector ferrule clamping device.
Background
The optical fiber connector, also called optical fiber adapter, is a device for detachably connecting optical fibers, and precisely connects two end surfaces of the optical fibers, so that the optical energy output by the transmitting optical fiber can be coupled into the receiving optical fiber to the maximum extent, the influence on the system caused by the intervention of the optical fiber connector into an optical link is minimized, and the optical fiber connector can influence the reliability and various performances of the optical transmission system to a certain extent. Therefore, the commonly used optical fiber adapter needs to detect the end face of the optical fiber adapter with high precision so as to realize the basic requirement of an optical path system and reduce errors caused by optical fiber butt joint.
In the optical fiber connector end face detection apparatus, it is generally required to clamp and fix the optical fiber connector. The clamping device of the existing optical fiber connector clamps the core insert (such as a ceramic core insert), the core insert is generally clamped by stainless steel directly, and then the core insert is pressed by a spring arm and other structures. The prior clamping device clamps the middle end face of the lock pin through the spring arm to fix the lock pin when clamping the lock pin, the middle of the lock pin can be subjected to the pressure of the spring arm to generate obvious micro deformation, and the position of the optical fiber can be changed after the optical fiber is deformed in the middle of the lock pin because the optical fiber is positioned in the middle of the lock pin, so that measurement inaccuracy can be caused.
Disclosure of Invention
Features and advantages of the invention will be set forth in part in the description which follows, or may be obvious from the description, or may be learned by practice of the invention.
In order to overcome the problems in the prior art, the invention provides the optical fiber connector ferrule clamping device which can reduce the influence of the spring arm on the middle part of the ferrule and improve the measurement accuracy.
The invention adopts the technical scheme that: the utility model provides an optical fiber connector lock pin clamping device, include the body, locate first portion of supporting on the body and locate on the body and be located at least one first spring arm of first portion opposite side that supports, optical fiber connector's lock pin presss from both sides at least one first spring arm and first portion of supporting between holding, just at least one first spring arm presss from both sides the both sides portion of lock pin.
According to one embodiment of the invention, the number of the first elastic arms is two, one ends of the two first elastic arms are respectively arranged on the body, and the other ends of the two first elastic arms respectively clamp the two side parts of the insert core.
The two first elastic arms are opposite and arranged at intervals, the first elastic arms are composed of first connecting portions and first clamping portions, one end of each first connecting portion is connected with the body, the other ends of the first connecting portions of the two first elastic arms extend towards the direction opposite to the first elastic arms respectively, the first clamping portions are vertically arranged at the other ends of the first connecting portions, and the first clamping portions extend towards the direction where the insert core is located.
The lock pin clamping device further comprises a second supporting part which is arranged on the body and is perpendicular to the first supporting part, and a second spring arm which is arranged on the body at one end and is opposite to the second supporting part at the other end, and the lock pin is further clamped between the second spring arm and the second supporting part.
The second elastic arm is composed of a second connecting portion and a second clamping portion, one end of the second connecting portion is connected with the body, the second clamping portion is vertically arranged at the other end of the second connecting portion, and the second clamping portion of the second elastic arm is arranged opposite to the second supporting portion.
A first empty avoiding groove is formed in a right-angle corner formed between the first abutting part and the second abutting part.
And a second empty avoiding groove is formed on the second abutting part by recessing the surface contacted with the insert core.
And a third empty avoiding groove is formed on the second elastic arm by recessing the end surface contacted with the inserting core.
And a gap is formed between the second elastic arm and the body.
The at least one first spring arm and the body are provided with a gap.
The lock pin clamping device further comprises a positioning sheet arranged on one side face of the body, and a through hole is formed in the position, corresponding to the lock pin, of the positioning sheet.
In the invention, as the first elastic arm clamps the two side parts of the lock pin, the pressure of the elastic arm on the middle part of the lock pin is reduced, the deformation of the middle part of the lock pin is reduced, the influence of the elastic arm on the middle part of the lock pin is further reduced, and the position change of the optical fiber in the middle of the lock pin is further reduced, thereby improving the measurement accuracy.
The features and content of these solutions will be better understood by those of ordinary skill in the art from a reading of the specification.
Drawings
The advantages and the manner of carrying out the invention will become more apparent from the following detailed description, taken in conjunction with the accompanying drawings, in which the content shown is meant to illustrate, but not to limit, the invention in any sense, and wherein:
FIG. 1 is a block diagram of an optical fiber connector ferrule holding apparatus according to an embodiment of the present invention, as viewed from the front;
FIG. 2 is a schematic front view of a ferrule holding apparatus of an optical fiber connector according to an embodiment of the present invention;
FIG. 3 is an enlarged schematic view of a rear face of an embodiment of the invention with a ferrule secured to a ferrule holding device of an optical fiber connector;
FIG. 4 is a schematic view of a ferrule holding apparatus of an optical fiber connector according to an embodiment of the present invention;
fig. 5 is an exploded view of the ferrule holding apparatus of the fiber optic connector of the present invention from the back side.
Detailed Description
As shown in fig. 1 to 3, the optical fiber connector ferrule clamping device provided by the embodiment of the invention is used for fixing the MT and MPO ferrules of a multi-core interferometer, and realizes the stability of angle measurement. The optical fiber connector ferrule clamping device comprises a body 10, at least one first elastic arm 20 and a second elastic arm 30, wherein a first supporting part 11 and a second supporting part 12 are arranged on the body 10, and the first supporting part 11 is perpendicular to the second supporting part 12. The at least one first spring arm 20 is disposed on the body 10 and located on an opposite side of the first supporting portion 11, one end of the second spring arm 30 is disposed on the body 10, the other end of the second spring arm 30 is disposed opposite to the second supporting portion 12, and the ferrule 40 of the optical fiber connector is sandwiched between the at least one first spring arm 20 and the first supporting portion 11 and between the second spring arm 30 and the second supporting portion 12.
In order to reduce the influence of the spring arm on the middle part of the ferrule and improve the measurement accuracy, the two side parts of the ferrule 40 are clamped by the at least one first spring arm 20, so that the pressure of the spring arm on the middle part of the ferrule is reduced, the deformation of the middle part of the ferrule is reduced, the influence of the spring arm on the middle part of the ferrule is further reduced, and the position change of the optical fiber in the middle of the ferrule is further reduced, thereby improving the measurement accuracy.
The number of the first elastic arms 20 is two, the two first elastic arms 20 are opposite and are arranged at intervals, one ends of the two first elastic arms 20 are respectively arranged on the body 10, and the other ends of the two first elastic arms 20 respectively clamp two side parts of the ferrule 40.
In this embodiment, the first abutting portion 11 is located at the lower side of the ferrule 40, and the first abutting portion 11 clamps the lower surface of the ferrule 40. The two first spring arms 20 are located on the upper side of the ferrule 40, the two first spring arms 20 are arranged left and right, the first spring arm 20 located on the left clamps the upper surface of the left side part of the ferrule 40, and the first spring arm 20 located on the right clamps the upper surface of the right side part of the ferrule 40. The second abutment 12 is located on the right side of the ferrule 40 (as viewed in fig. 2), and the second abutment 12 clamps the right side of the ferrule 40. The second spring arm 30 is located on the left side of the ferrule 40 (as viewed in fig. 2), and the second spring arm 30 clamps the left side of the ferrule 40.
As shown in fig. 3, the first spring arm 20 is composed of a first connecting portion 21 and a first clamping portion 22, one end of the first connecting portion 21 is connected to the body 10, and in this embodiment, one end of the first spring arm 20 is integrally formed with the body 10. The other ends of the first connection portions 21 of the two first spring arms 20 extend toward the opposite directions of the first spring arms 20, respectively, the first clamping portions 22 are vertically disposed at the other ends of the first connection portions 21, and the first clamping portions 22 extend toward the direction in which the ferrules 40 are located. In this embodiment, the first connecting portion 21 is integrally formed with the first clamping portion 22.
The second spring arm 30 is composed of a second connecting portion 31 and a second clamping portion 32, one end of the second connecting portion 31 is connected to the body 10, and in this embodiment, one end of the second connecting portion 31 is integrally formed with the body 10. The second clamping portion 32 is vertically provided at the other end of the second connecting portion 31. The second clamping portion 32 extends toward the direction in which the ferrule 40 is located, such that the second clamping portion 32 is disposed opposite the second abutting portion 12. In this embodiment, the second connecting portion 31 is integrally formed with the second clamping portion 32.
In the process of inserting or extracting the lock pin, the lock pin needs to be repeatedly inserted and extracted due to the fact that dirt or protrusions on the surface of the lock pin interfere with the body and the elastic arm, and then the clamping stability and accuracy can be affected. In order to avoid the above problem, a gap is formed between the two first spring arms 20 and the body 10, and a gap is formed between the second spring arm 30 and the body 10. The right angle corner formed between the first abutting part 11 and the second abutting part 12 is provided with a first clearance groove 13, the surface of the second abutting part 12 contacted with the lock pin 40 is sunken to form a second clearance groove 121, and the end surface of the second clamping part 32 contacted with the lock pin 40 is sunken to form a third clearance groove 321.
In this embodiment, the first, second and third void-avoiding grooves are circular arc-shaped.
As shown in fig. 4, in order to fix the front end of the ferrule to fix the ferrule in place, the optical fiber connector ferrule holding device further includes a positioning piece 50 provided on one side (back in this embodiment) of the body 10, and a through hole 51 is provided on the positioning piece 50 at a position corresponding to the ferrule. The through hole 51 is square, and the left hole wall and the right hole wall of the through hole 51 are respectively sunken to form a fourth clearance groove 52, and the fourth clearance groove 52 is used for enabling the PIN needle on the lock PIN to extend out.
The positioning sheet 50 is fixed on the body 10 by a screw, and the fourth clearance groove is arc-shaped.
As shown in fig. 5, the positioning plate 50 is provided with two screw through holes 53 for the screws 60 to pass through, the two screw through holes 53 are respectively located at the upper side and the lower side of the through hole, the body 10 is correspondingly provided with threaded holes 14 matched with the screws 60, and the number of the threaded holes 14 is two.
In another embodiment, the number of the first spring arms may be one, the first spring arms have two clamping portions, the two clamping portions are spaced apart, and the two clamping portions respectively clamp two side portions of the ferrule.
While the preferred embodiments of the present invention have been illustrated by reference to the accompanying drawings, those skilled in the art will appreciate that many modifications are possible in carrying out the invention without departing from the scope and spirit thereof. For example, features illustrated or described as part of one embodiment can be used on another embodiment to yield still a further embodiment. The foregoing description and drawings are merely illustrative of preferred embodiments of the present invention and are not intended to limit the scope of the claims, but rather to cover all modifications within the scope of the present invention.
Claims (2)
1. The clamping device for fixing the MT and MPO ferrules of the multi-core interferometer is characterized by comprising a body, a first propping part arranged on the body and at least one first spring arm arranged on the body and positioned on the opposite side of the first propping part, wherein the ferrules of the optical fiber connector are clamped between the at least one first spring arm and the first propping part, and the at least one first spring arm clamps two side parts of the ferrules;
The clamping device further comprises a second propping part which is arranged on the body and is perpendicular to the first propping part, and a second elastic arm, one end of which is arranged on the body, and the other end of which is opposite to the second propping part, and the insert core is further clamped between the second elastic arm and the second propping part;
a first empty avoiding groove is formed at a right-angle corner formed between the first abutting part and the second abutting part;
a second empty avoiding groove is formed on the second supporting part in a concave manner on the surface contacted with the insert core;
the end surface of the second elastic arm, which is in contact with the core insert, is sunken to form a third clearance groove, or a gap is formed between the second elastic arm and the body;
a gap is formed between the at least one first spring arm and the body;
The number of the first elastic arms is two, one ends of the two first elastic arms are respectively arranged on the body, and the other ends of the two first elastic arms respectively clamp the two side parts of the insert core; the two first elastic arms are opposite and arranged at intervals, each first elastic arm is composed of a first connecting part and a first clamping part, one end of each first connecting part is connected with the body, the other ends of the first connecting parts of the two first elastic arms extend towards the direction of the corresponding first elastic arms, the first clamping parts are vertically arranged at the other ends of the first connecting parts, and the first clamping parts extend towards the direction of the insert core; the second elastic arm is composed of a second connecting portion and a second clamping portion, one end of the second connecting portion is connected with the body, the second clamping portion is vertically arranged at the other end of the second connecting portion, and the second clamping portion of the second elastic arm is arranged opposite to the second supporting portion.
2. The clamping device for fixing MT and MPO ferrules for a multi-core interferometer according to claim 1, further comprising a positioning plate disposed on a side surface of said body, wherein a through hole is disposed on said positioning plate at a position corresponding to said ferrules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910069833.6A CN109719647B (en) | 2019-01-24 | 2019-01-24 | Clamping device for fixing MT and MPO core insert of multi-core interferometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910069833.6A CN109719647B (en) | 2019-01-24 | 2019-01-24 | Clamping device for fixing MT and MPO core insert of multi-core interferometer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109719647A CN109719647A (en) | 2019-05-07 |
| CN109719647B true CN109719647B (en) | 2024-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910069833.6A Active CN109719647B (en) | 2019-01-24 | 2019-01-24 | Clamping device for fixing MT and MPO core insert of multi-core interferometer |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879867A (en) * | 2011-07-15 | 2013-01-16 | 富士康(昆山)电脑接插件有限公司 | Socket connector and plug connector |
| CN203561769U (en) * | 2013-10-15 | 2014-04-23 | 深圳市维度科技有限公司 | Optical fiber connector fixing box and optical fiber end face measuring device |
| CN104898208A (en) * | 2015-06-29 | 2015-09-09 | 周其 | Fiber connector clamping device |
| CN209681997U (en) * | 2019-01-24 | 2019-11-26 | 深圳市维度科技有限公司 | A kind of optical fiber connector lock pin clamping device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011221397A (en) * | 2010-04-13 | 2011-11-04 | Hakusan Mfg Co Ltd | Adapter for optical connector and connection structure of optical connector |
| CN201974546U (en) * | 2010-12-30 | 2011-09-14 | 泰科电子(上海)有限公司 | Adapter assembly |
| US8596884B2 (en) * | 2011-06-28 | 2013-12-03 | Corning Cable Systems Llc | Optical fiber mechanical splice connector systems and methods of coupling optical fibers |
| CN103389544B (en) * | 2012-05-09 | 2015-01-21 | 东侑光电股份有限公司 | One-Piece Fiber Optic Adapters |
| FR3050286A1 (en) * | 2016-04-14 | 2017-10-20 | Interlemo Holding Sa | CONTACTOR ELEMENT FOR OPTICAL CONNECTOR |
-
2019
- 2019-01-24 CN CN201910069833.6A patent/CN109719647B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879867A (en) * | 2011-07-15 | 2013-01-16 | 富士康(昆山)电脑接插件有限公司 | Socket connector and plug connector |
| CN203561769U (en) * | 2013-10-15 | 2014-04-23 | 深圳市维度科技有限公司 | Optical fiber connector fixing box and optical fiber end face measuring device |
| CN104898208A (en) * | 2015-06-29 | 2015-09-09 | 周其 | Fiber connector clamping device |
| CN209681997U (en) * | 2019-01-24 | 2019-11-26 | 深圳市维度科技有限公司 | A kind of optical fiber connector lock pin clamping device |
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| CN109719647A (en) | 2019-05-07 |
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Address after: Building 603, Building 2, Nanshan Zhiyuan Chongwen Park, No. 3370 Liuxian Avenue, Fuguang Community, Taoyuan Street, Nanshan District, Shenzhen, Guangdong Province, 518000 Applicant after: Shenzhen Dimension Technology Co.,Ltd. Address before: 518000 north, 3rd floor, minlida Industrial Park, honghualing Industrial Zone, Taoyuan Street, Nanshan District, Shenzhen City, Guangdong Province Applicant before: DIMENSION TECHNOLOGY CO.,LTD. |
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