CN112415686A - Optical fiber fixing and rotating device and using method thereof - Google Patents
Optical fiber fixing and rotating device and using method thereof Download PDFInfo
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- CN112415686A CN112415686A CN202011318987.3A CN202011318987A CN112415686A CN 112415686 A CN112415686 A CN 112415686A CN 202011318987 A CN202011318987 A CN 202011318987A CN 112415686 A CN112415686 A CN 112415686A
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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
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
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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
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/4236—Fixing or mounting methods of the aligned elements
- G02B6/424—Mounting of the optical light guide
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The invention discloses an optical fiber fixing and rotating device and a using method thereof, wherein the device comprises a ceramic ferrule, an optical fiber supporting rotating rod, a magnetic stripe, a rotating shaft and a stepping motor; the ceramic ferrule is fixed at the front end of the optical fiber support rotating rod, the rear end of the optical fiber support rotating rod is connected with the stepping motor through a rotating shaft, and the geometric centers of the ceramic ferrule, the optical fiber support rotating rod and the rotating shaft are coaxial; a through hole is formed in the ceramic ferrule, and the front end of the optical fiber is fixed after the optical fiber passes through the through hole; the optical fiber supporting rotating rod has magnetic adsorption property, and a groove is formed in the middle of the optical fiber supporting rotating rod; the magnetic strip is adsorbed on the optical fiber supporting rotary rod, and the matching groove forms a closed cavity, so that the rear end of the optical fiber is kept in the closed cavity when the optical fiber rotates. The optical fiber clamping device has the advantages that through reasonable design and layout, accurate clamping and fixing of the optical fiber can be guaranteed, the structure is simple, and the operation is easy; the stepping motor is adopted to drive the rotating shaft, the optical fiber supporting rotating rod and the optical fiber to rotate together, so that the rotating angle can be accurately controlled to meet the detection requirement.
Description
Technical Field
The invention belongs to the field of manufacturing of optical communication devices, and particularly relates to an optical fiber fixing and rotating device and a using method thereof.
Background
In the field of optical communication device production and manufacturing, particularly certain types of passive optical device products, in the coupling test of production and manufacturing, particularly in the previous incoming material detection process, the optical fiber end face geometric dimension needs to be detected, and therefore the optical fiber needs to be fixed and rotated. The device for detecting the geometric parameters of the end face of the optical fiber in the production of the passive optical device product has the advantages of simple and reliable structure, convenient operation of clamping the optical fiber, no damage to the optical fiber and no influence on the use of subsequent procedures.
At present, most of optical fiber fixing and rotating devices in the market are vacuum adsorption type, the optical fiber is not firmly fixed in the detection process and is easy to fall off, and the device is large in size; in addition, the motor rotation output axis and the optical fiber axis are not coaxial, transmission errors are easily introduced when the rotation motion is transmitted through the intermediate mechanism, the cost is high, and the motor rotation output axis and the optical fiber axis are not suitable for occasions with limited space, high rotation precision requirements and limited expenses.
Disclosure of Invention
Aiming at the defects or the improvement requirements of the prior art, the invention provides an optical fiber fixing and rotating device and a using method thereof, aiming at ensuring accurate clamping and fixing of optical fibers and accurately controlling a rotating angle to meet the detection requirement through reasonable design and layout, thereby solving the technical problems of unreliable clamping, poor rotating precision and the like of the traditional optical fiber fixing and rotating device.
To achieve the above object, according to one aspect of the present invention, there is provided an optical fiber fixing and rotating device including a ferrule 2, an optical fiber supporting rotating rod 3, a magnetic stripe 4, a rotating shaft 5, and a stepping motor 6;
the ceramic ferrule 2 is used for fixing the front end of an optical fiber 1, the ceramic ferrule 2 is fixed at the front end of the optical fiber support rotating rod 3, the rear end of the optical fiber support rotating rod 3 is connected with the stepping motor 6 through the rotating shaft 5, and the geometric centers of the ceramic ferrule 2, the optical fiber support rotating rod 3 and the rotating shaft 5 are coaxial;
the ceramic ferrule 2 is internally provided with a through hole, the front end of the optical fiber 1 is fixed after the optical fiber 1 passes through the through hole, and the part to be detected of the optical fiber 1 is exposed in the air; the optical fiber supporting rotary rod 3 has magnetic adsorption property, and a groove is formed in the middle of the optical fiber supporting rotary rod to accommodate the rear end of the optical fiber 1; the magnetic strip 4 is adsorbed on the optical fiber supporting rotary rod 3 and matched with the groove to form a closed cavity, so that the rear end of the optical fiber 1 is kept in the closed cavity when the optical fiber rotates.
Preferably, the optical fiber connector further comprises a coaxial adapter sleeve 7, wherein the coaxial adapter sleeve 7 is used for connecting the optical fiber supporting rotating rod 3 and the rotating shaft 5, so that the geometric centers of the optical fiber supporting rotating rod 3 and the rotating shaft 5 are coaxial.
Preferably, the device further comprises a double-bearing seat 8, wherein the double-bearing seat 8 is matched with the rotating shaft 5;
the rotating shaft 5 is embedded into the double-bearing seat 8, two bearings in the double-bearing seat 8 form double supporting points to support the rotating shaft 5, the double-bearing seat is used for bearing certain radial and axial loads, and the rotation precision of the rotating shaft 5 is guaranteed.
Preferably, the device further comprises a coupler 9, wherein the coupler 9 is a flexible coupler and is used for connecting an output shaft of the stepping motor 6 with the rotating shaft 5 so as to transmit rotary motion and compensate angle deviation between the two shafts.
Preferably, the device further comprises a return origin point calibration ring 10 and a limit optical coupling plate 11; the origin point returning calibration ring 10 is fixed on the rotating shaft 5 and used for providing a reference origin point; the limit optical coupling plate 11 is used for detecting a reference origin on the origin point calibration ring 10;
when the number of times that the limiting optical coupling plate 11 detects the reference origin reaches a preset value, an origin return signal is given, so that the stepping motor 6 does an origin return motion once, and a rotation error is corrected.
Preferably, a main bearing plate 12 is further included for bearing the entire optical fiber fixing and rotating device.
Preferably, the front end of the optical fiber supporting rotary rod 3 is provided with a marking scale for calibrating the fixing position of the ferrule 2.
Preferably, the magnetic strip 4 is a rubber double-sided soft magnetic strip.
According to another aspect of the present invention, there is provided a method of using the optical fiber fixing and rotating apparatus of the first aspect, comprising:
inserting an optical fiber 1 to be detected into a ceramic ferrule 2, so that the front end of the optical fiber 1 is fixed by the ceramic ferrule 2, the rear end of the optical fiber is limited and fixed by an optical fiber supporting rotary rod 3 and a magnetic strip 4, and the part to be detected at the front end of the optical fiber 1 is exposed in the air;
and adjusting a lens of the microscope to enable the part to be detected at the front end of the optical fiber 1 to appear in a visual field range, and controlling the stepping motor 6 to rotate until the optical fiber 1 is driven to rotate to an ideal detection position.
Preferably, the method further comprises:
the rotation times of the stepping motor 6 are detected through the limiting optical coupling plate 11, and when the rotation times are detected to reach a preset value, a return-to-original-point signal is given out, so that the stepping motor 6 does return-to-original-point movement once to correct a rotation error.
Generally, compared with the prior art, the technical scheme of the invention has the following beneficial effects: in the optical fiber fixing and rotating device provided by the invention, the precise clamping and fixing of the optical fiber can be ensured through the matching of the ceramic ferrule, the optical fiber supporting rotating rod and the magnetic stripe, the optical fiber can be always kept in the optical fiber supporting rotating rod even in the rotating process, the structure is simple, the operation is easy to carry out, and the optical fiber can be prevented from being damaged; in addition, the ceramic ferrule, the optical fiber support rotary rod and the rotary shaft keep the geometric center coaxial line, and the stepping motor is adopted to drive the rotary shaft, the optical fiber support rotary rod and the optical fiber to rotate together, so that the rotation angle can be accurately controlled to meet the detection requirement.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic structural diagram of an optical fiber fixing and rotating apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of another optical fiber fixing and rotating apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic partial structural view of an optical fiber fixing and rotating apparatus according to an embodiment of the present invention;
FIG. 4 is a flowchart of a method for using an optical fiber fixing and rotating apparatus according to an embodiment of the present invention;
fig. 5 is a schematic front view illustrating an optical fiber end surface being detected by using an optical fiber fixing and rotating device according to an embodiment of the present invention;
FIG. 6 is a schematic top view illustrating an exemplary embodiment of a fiber end surface inspection apparatus using a fiber fixing and rotating device;
fig. 7 is a schematic partial top view illustrating an optical fiber end surface inspection using an optical fiber fixing and rotating device according to an embodiment of the present invention.
The same reference numbers will be used throughout the drawings to refer to the same or like elements or structures, wherein:
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "upper", "lower", "top", "bottom", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention but do not require that the present invention must be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other. The invention will be described in detail below with reference to the figures and examples.
Example 1
In order to solve the technical problems of unreliable clamping, poor rotating precision and the like of the conventional optical fiber fixing and rotating device, the embodiment of the invention provides an optical fiber fixing and rotating device which mainly comprises a ceramic ferrule 2, an optical fiber supporting rotating rod 3, a magnetic stripe 4, a rotating shaft 5 and a stepping motor 6 as shown in figures 1 and 2.
The ceramic ferrule 2 is used for fixing the front end of an optical fiber 1 to be detected, and the ceramic ferrule 2 is fixed at the front end of the optical fiber support rotating rod 3; the rear end of the optical fiber supporting rotary rod 3 is connected with the stepping motor 6 through the rotary shaft 5, so that the stepping motor 6 drives the optical fiber 1 to rotate through the rotary shaft 5 and the optical fiber supporting rotary rod 3. The geometric centers of the ceramic ferrule 2, the optical fiber support rotating rod 3 and the rotating shaft 5 are coaxial.
The ceramic ferrule 2 is internally provided with a through hole, the front end of the optical fiber 1 is fixed after the optical fiber 1 passes through the through hole, and the part to be detected of the optical fiber 1 is exposed in the air; the optical fiber supporting rotary rod 3 has magnetic adsorption property, and a groove is formed in the middle of the optical fiber supporting rotary rod to accommodate the rear end of the optical fiber 1; the magnetic strip 4 is adsorbed on the optical fiber supporting rotary rod 3 and matched with the groove to form a closed cavity, so that the rear end of the optical fiber 1 is kept in the closed cavity when the optical fiber rotates.
The following describes the structure of each part of the optical fiber fixing and rotating device in detail with reference to the accompanying drawings:
referring to fig. 1 and 2, in a specific embodiment, the complete optical fiber fixing and rotating device includes a ferrule 2, an optical fiber supporting rotating rod 3, a magnetic stripe 4, a rotating shaft 5, a stepping motor 6, a coaxial adapter sleeve 7, a dual-bearing seat 8, a coupler 9, an origin calibration ring 10, a limiting optical coupler plate 11, a main bearing plate 12, and a stepping motor adapter block 13.
The ceramic ferrule 2 is made of ceramic insulating material, can be designed into a cylinder shape, is not limited uniquely, is internally provided with a through hole with a diameter slightly larger than that of an optical fiber to be detected, and is fixed on a scale mark at the front end of the optical fiber support rotating rod 3 through viscose glue. After the optical fiber 2 passes through the through hole, the front end of the optical fiber 2 can be fixed, and the part to be detected is exposed in the air, as shown in fig. 3. The ceramic ferrule 2 and the geometric center of the optical fiber support rotating rod 2 are coaxial.
The optical fiber supporting rotating rod 3 can be made of martensitic stainless steel and has strong magnetic adsorption so as to be matched with the magnetic strip. A marking reticle is arranged at the front end of the optical fiber supporting rotary rod 3 and used for calibrating the bonding position of the ceramic ferrule 2; a V-shaped groove is formed in the middle to accommodate the rear end of the optical fiber 1, as shown in FIG. 3; the rear end of the fiber supporting rotating rod 3 may be designed in a cylindrical shape. During processing, the geometric axes of the through hole of the ceramic ferrule 2, the front end of the optical fiber 1 and the cylindrical structure at the rear end of the optical fiber support rotating rod 3 are required to be basically collinear.
The magnetic strip 4 can be a rubber double-sided soft magnetic strip with strong magnetism and soft texture, and can be cut into required size and shape. After the optical fiber 1 is inserted into the ferrule 2, the magnetic strip 4 can be adsorbed on the optical fiber support rotating rod 3, and a closed cavity is formed by matching with the V-shaped groove, so that the rear end of the optical fiber 1 is always kept in the closed cavity when the optical fiber is rotated.
The double-bearing seat 8 is matched with the rotating shaft 5, the rotating shaft 5 is embedded into the double-bearing seat 8, and the double-bearing seat and the rotating shaft are tightly matched with each other in a small interference range. Duplex bearing frame 8 plays the support the effect of pivot 5 specifically is: two bearings in the double-bearing seat 8 form double supporting points to support the rotating shaft 5, can bear certain radial and axial loads, and ensure the rotation precision of the rotating shaft 5.
The coupling 9 is a flexible coupling and is used for connecting an output shaft of the stepping motor 6 with the rotating shaft 5 so as to transmit rotary motion and compensate certain angle deviation between the two shafts.
The origin point calibration ring 10 and the limit optical coupling plate 11 are matched for use: the origin point returning calibration ring 10 is fixed on the rotating shaft 5, can rotate along with the rotating shaft 5 and is used for providing a reference origin point; the limit optical coupling plate 11 is used for detecting a reference origin on the origin point calibration ring 10. When the number of times that the limiting optical coupling plate 11 detects the reference origin reaches a preset value, that is, when the number of times that the stepping motor 6 rotates reaches a preset value (for example, 10 times), a return-to-origin point signal is given, so that the stepping motor 6 makes a return-to-origin point movement, and then a rotation error is corrected. This is to consider that after the stepping motor 6 rotates for many times, a certain error may be generated on the rotation angle, and further the detection of the optical fiber 1 is affected, so that the rotation error can be corrected by performing the rotation to the original point once every certain angle is rotated, and the accuracy of the rotation angle of the optical fiber 1 is ensured.
The main bearing plate 12 is used for bearing the whole optical fiber fixing and rotating device, and specifically, the double-bearing seat 8, the limiting optical coupling plate 11 and the stepping motor 6 are all fixed on the surface of the main bearing plate 12.
The stepping motor adapter 13 is connected in front of the stepping motor adapter 13, and can play a certain switching role between the coupler 9 and the stepping motor.
In the optical fiber fixing and rotating device provided by the embodiment of the invention, the precise clamping and fixing of the optical fiber can be ensured through the matching of the ceramic ferrule, the optical fiber supporting rotating rod and the magnetic strip, the optical fiber can be always kept in the optical fiber supporting rotating rod even in the rotating process, the structure is simple, the operation is easy to carry out, and the optical fiber can be prevented from being damaged; in addition, the ceramic ferrule, the optical fiber support rotating rod and the rotating shaft keep the geometric center coaxial line, the stepping motor is adopted to drive the coupler, the rotating shaft, the optical fiber support rotating rod and the optical fiber to rotate together, and meanwhile, the stepping motor is matched with the origin point component, so that the rotating angle can be accurately controlled to meet the detection requirement.
Example 2
On the basis of the foregoing embodiment 1, an embodiment of the present invention further provides a method for using the optical fiber fixing and rotating apparatus described in embodiment 1, which is also a method for detecting geometric parameters of an end face of an optical fiber, as shown in fig. 4, and mainly includes the following steps:
With reference to fig. 1 and 3, after an optical fiber 1 to be detected is inserted into a through hole of a ferrule 2, the rear end of the optical fiber 1 is placed into a V-shaped groove of the optical fiber supporting rotating rod 3, and then the magnetic strip 4 is adsorbed on the surface of the V-shaped groove, so as to form a closed cavity by matching with the V-shaped groove. And finally, the front end of the optical fiber 1 is fixed by the ceramic ferrule 2, and the rear end of the optical fiber is limited and fixed in a closed cavity formed by the optical fiber support rotating rod 3, so that the optical fiber is accurately clamped and fixed.
With reference to fig. 5-7, first, the microscope lens a is roughly adjusted to the visual range of the end of the optical fiber 1 to be detected, and then the position of the microscope lens a is finely adjusted, so that the part to be detected at the front end of the optical fiber 1 can clearly appear in the visual range. Meanwhile, in order to observe the geometric parameters of the end face of the optical fiber more clearly, the stepping motor 6 needs to be further controlled to rotate, so that the optical fiber 1 is driven to rotate to an ideal detection position through the rotating shaft 5 and the optical fiber supporting rotating rod 3. As shown in fig. 6, when the optical fiber 1 to be detected rotates to an ideal detection position, the microscope lens a directly faces the end of the optical fiber 1 to be detected, so as to observe and detect the geometric parameters related to the end surface of the optical fiber.
Further, in order to avoid the influence on the rotation accuracy caused by the multiple rotations of the stepping motor 6, the method further comprises: the rotation times of the stepping motor 6 are detected in real time through the limiting optical coupling plate 11, the rotation times are mainly determined by detecting a reference origin point on the origin point calibration ring 10, and when the rotation times reach a preset value, an origin point returning signal is given out, so that the stepping motor 6 makes one-time origin point returning movement to correct a rotation error, and the accuracy of the rotation angle of the optical fiber 1 is ensured.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. An optical fiber fixing and rotating device is characterized by comprising a ceramic ferrule (2), an optical fiber supporting rotating rod (3), a magnetic stripe (4), a rotating shaft (5) and a stepping motor (6);
the ceramic ferrule (2) is used for fixing the front end of an optical fiber (1), the ceramic ferrule (2) is fixed at the front end of the optical fiber supporting rotary rod (3), the rear end of the optical fiber supporting rotary rod (3) is connected with the stepping motor (6) through the rotating shaft (5), and the geometric centers of the ceramic ferrule (2), the optical fiber supporting rotary rod (3) and the rotating shaft (5) are coaxial;
the ceramic ferrule (2) is internally provided with a through hole, the front end of the optical fiber (1) is fixed after the optical fiber (1) passes through the through hole, and the part to be detected of the optical fiber (1) is exposed in the air; the optical fiber supporting rotating rod (3) has magnetic adsorption, and a groove is formed in the middle of the optical fiber supporting rotating rod to accommodate the rear end of the optical fiber (1); the magnetic strip (4) is adsorbed on the optical fiber supporting rotary rod (3) and matched with the groove to form a closed cavity, so that the rear end of the optical fiber (1) is kept in the closed cavity when the optical fiber rotates.
2. The optical fiber fixing and rotating device according to claim 1, further comprising a coaxial adapter sleeve (7), wherein the coaxial adapter sleeve (7) is used for connecting the optical fiber supporting rotating rod (3) and the rotating shaft (5) so that the geometric centers of the optical fiber supporting rotating rod (3) and the rotating shaft (5) are coaxial.
3. The optical fiber fixing and rotating device according to claim 1, further comprising a double-bearing seat (8), wherein the double-bearing seat (8) is used with the rotating shaft (5);
the rotating shaft (5) is embedded into the double-bearing seat (8), two bearings in the double-bearing seat (8) form double supporting points to support the rotating shaft (5) for bearing certain radial and axial loads and ensuring the rotation precision of the rotating shaft (5).
4. The optical fiber fixing and rotating device according to claim 1, further comprising a coupling (9), wherein the coupling (9) is a flexible coupling for connecting an output shaft of the stepping motor (6) and the rotating shaft (5) so as to transmit a rotating motion and compensate an angular deviation between the two shafts.
5. The optical fiber fixing and rotating device according to claim 1, further comprising a return origin point calibration ring (10) and a limit optical coupling plate (11); the origin point returning calibration ring (10) is fixed on the rotating shaft (5) and used for providing a reference origin point; the limiting optical coupling plate (11) is used for detecting a reference origin on the origin point calibration ring (10);
when the number of times that the limiting optical coupling plate (11) detects the reference origin reaches a preset value, an origin return signal is given, so that the stepping motor (6) does one-time origin return motion, and a rotation error is corrected.
6. The optical fiber fixing and rotating device according to claim 1, further comprising a main bearing plate (12) for bearing the entire optical fiber fixing and rotating device.
7. The optical fiber fixing and rotating device according to any one of claims 1 to 6, wherein the front end of the optical fiber supporting rotating rod (3) is provided with a marking scale for marking the fixing position of the ferrule (2).
8. Optical fiber fixing and rotating device according to any of claims 1-6, characterized in that the magnetic strip (4) is a rubber double-sided soft magnetic strip.
9. A method of using the optical fiber fixing and rotating device according to any one of claims 1 to 8, comprising:
inserting an optical fiber (1) to be detected into the ceramic ferrule (2) to fix the front end of the optical fiber (1) by the ceramic ferrule (2), limiting and fixing the rear end by an optical fiber supporting rotary rod (3) and a magnetic strip (4), and exposing the part to be detected at the front end of the optical fiber (1) in the air;
adjusting a lens of the microscope to enable the part to be detected at the front end of the optical fiber (1) to appear in a visual field range, and controlling the stepping motor (6) to rotate until the optical fiber (1) is driven to rotate to a desired detection position.
10. The method of using the fiber fixation rotation device of claim 9, further comprising:
the rotation frequency of the stepping motor (6) is detected through the limiting optical coupling plate (11), and a return point signal is given when the rotation frequency is detected to reach a preset value, so that the stepping motor (6) does return point movement once to correct a rotation error.
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| CN202011318987.3A CN112415686B (en) | 2020-11-23 | 2020-11-23 | Optical fiber fixing and rotating device and using method thereof |
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| CN202011318987.3A CN112415686B (en) | 2020-11-23 | 2020-11-23 | Optical fiber fixing and rotating device and using method thereof |
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| CN112415686A true CN112415686A (en) | 2021-02-26 |
| CN112415686B CN112415686B (en) | 2022-03-29 |
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| CN112415686B (en) | 2022-03-29 |
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