CN212965506U - Adjusting device for optical fiber coupling - Google Patents
Adjusting device for optical fiber coupling Download PDFInfo
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- CN212965506U CN212965506U CN202021326349.1U CN202021326349U CN212965506U CN 212965506 U CN212965506 U CN 212965506U CN 202021326349 U CN202021326349 U CN 202021326349U CN 212965506 U CN212965506 U CN 212965506U
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Abstract
The utility model relates to the technical field of optical fiber coupling, in particular to an adjusting device for optical fiber coupling, which comprises a four-degree-of-freedom series motion mechanism, a two-degree-of-freedom series motion mechanism and an optical fiber holder; the four-degree-of-freedom serial motion mechanism comprises an X-axis moving assembly, a Y-axis moving assembly, a Z-axis moving assembly and a Y-axis rotating assembly which are connected with each other; the two-degree-of-freedom serial motion mechanism is connected to the tail end of the four-degree-of-freedom serial motion mechanism and comprises an X-axis rotating assembly and a Z-axis rotating assembly which are connected with each other; the optical fiber holder is connected to the tail end of the two-degree-of-freedom serial motion mechanism. The utility model provides an error that is used for adjusting device of fiber coupling to have avoided the manual regulation in the fiber coupling installation and debugging in-process to bring has improved fiber coupling's alignment accuracy, helps obtaining higher fiber coupling efficiency.
Description
Technical Field
The utility model relates to an optical fiber coupling technical field especially relates to an adjusting device for optical fiber coupling.
Background
With the development of laser technology, laser weapons, photoelectric detection, high-power lasers and other technologies can not be coupled with optical fibers, a focusing lens is generally used in the existing optical fiber coupling technology to focus laser beams and then couple the laser beams into the optical fibers, but because the core diameters of a focus light spot and the optical fibers are in the micron order, the incident angle of the laser beams, the size of the focus light spot and the alignment degree of the optical fibers have great influence on the optical fiber coupling efficiency. In the process of debugging the optical fiber coupling, a manual adjusting frame is generally used for adjusting the position of the optical fiber, but the adjusting precision of the manual adjusting frame is insufficient and a return path difference exists, so that the efficiency of optical fiber coupling is low.
SUMMERY OF THE UTILITY MODEL
The present invention aims at least solving one of the technical problems existing in the prior art or the related art.
The utility model provides an adjusting device for optical fiber coupling, which comprises a four-degree-of-freedom series motion mechanism, a two-degree-of-freedom series motion mechanism and an optical fiber holder; the four-degree-of-freedom serial motion mechanism comprises an X-axis moving assembly, a Y-axis moving assembly, a Z-axis moving assembly and a Y-axis rotating assembly which are connected with each other; the two-degree-of-freedom serial motion mechanism is connected to the tail end of the four-degree-of-freedom serial motion mechanism and comprises an X-axis rotating assembly and a Z-axis rotating assembly which are connected with each other; the optical fiber holder is connected to the tail end of the two-degree-of-freedom serial motion mechanism.
In one embodiment, the Z-axis moving assembly, the X-axis moving assembly, the Y-axis rotating assembly and the Y-axis moving assembly are connected in sequence; the Y-axis moving assembly is connected with the two-degree-of-freedom serial motion mechanism.
In one embodiment, the X-axis rotation assembly is coupled to the four degree-of-freedom tandem motion mechanism and the Z-axis rotation assembly is coupled to the fiber holder.
In one embodiment, the Z-axis moving assembly comprises a first motor and the X-axis moving assembly comprises a second motor; the Y-axis rotating assembly comprises a third motor, and the Y-axis moving assembly comprises a fourth motor; the X-axis rotating assembly comprises a fifth motor, and the Z-axis rotating assembly comprises a sixth motor; the first motor, the second motor, the third motor, the fourth motor, the fifth motor and the sixth motor are respectively electrically connected with a driver, and the drivers are respectively connected with a computer.
In one embodiment, the Z-axis moving assembly comprises a first ball screw pair driven by the first motor, and the second motor is connected with a nut of the first ball screw pair; the X-axis moving assembly comprises a second ball screw pair driven by the second motor, and the third motor is connected with a nut of the second ball screw pair; the Y-axis rotating assembly comprises a rotating platform driven by a third motor, and the fourth motor is connected to the rotating platform; the Y-axis moving assembly comprises a third ball screw pair driven by the fourth motor, and the fifth motor is connected with a nut of the third ball screw pair.
In one embodiment, the adjusting device includes a connecting arm, one end of the connecting arm is connected to the nut of the third ball screw pair, the other end of the connecting arm is provided with a U-shaped connecting piece, the U-shaped connecting piece includes a middle section and side walls connected to two sides of the middle section, the middle section is fixed to the connecting arm, and the fifth motor is fixed to the side walls.
In one embodiment, the X-axis rotation assembly includes a first rocker arm driven by the fifth motor, the first rocker arm securing the sixth motor, and the Z-axis rotation assembly includes a second rocker arm driven by the sixth motor, the second rocker arm securing the fiber holder.
In one embodiment, the X-axis rotating assembly includes two fifth motors, output shafts of the two fifth motors are arranged in a collinear manner, and the two fifth motors are respectively connected with one first rocker arm.
In one embodiment, the output shaft of the fifth motor is connected to the first rocker arm through a first reduction gear train, and the output shaft of the sixth motor is connected to the second rocker arm through a second reduction gear train.
In one embodiment, the optical fiber holder includes a sleeve connected to a distal end of the two-degree-of-freedom serial kinematic mechanism and a set screw inserted through a wall surface of the sleeve.
The utility model has the advantages that: because the mechanism that has adopted four degrees of freedom series motion mechanism and two degrees of freedom series motion mechanism to form realizes the six degrees of freedom regulation motions of optical fiber holder, the utility model provides an error that manual regulation brought in the optical fiber coupling debugging in-process has been avoided to adjusting device for optical fiber coupling, has improved optical fiber coupling's alignment accuracy, helps obtaining higher optical fiber coupling efficiency.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a front view of an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a two-degree-of-freedom series motion mechanism according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an X-axis rotating assembly according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of an optical fiber holder according to an embodiment of the present invention;
description of reference numerals:
1. a four-degree-of-freedom series motion mechanism; 11. a Z-axis moving assembly; 111. a first motor; 12. an X-axis moving assembly; 121. a second motor; 13. a Y-axis rotating assembly; 131. a third motor; 132. rotating the platform; 14. a Y-axis moving assembly; 141. a fourth motor; 142. a third ball screw pair; 143. a guide member; 2. a connecting arm; 21. a U-shaped connector; 3. a two-degree-of-freedom series motion mechanism; 31. an X-axis rotation assembly; 311. a fifth motor; 312. a first reduction gear train; 313. a first rocker arm; 314. a fixing hole; 315. a U-shaped mounting slot; 32. a Z-axis rotating assembly; 321. a sixth motor; 322. a second rocker arm; 4. an optical fiber holder; 41. a sleeve; 42. tightening the screw; 5. an optical fiber.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly described below with reference to the accompanying drawings of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the utility model, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the utility model.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
As shown in fig. 1 to 5, the present invention provides an adjusting device for optical fiber coupling, which comprises a four-degree-of-freedom serial motion mechanism 1, a two-degree-of-freedom serial motion mechanism 3 and an optical fiber holder 4; the four-degree-of-freedom serial motion mechanism 1 comprises an X-axis moving component 12 (for realizing adjustment along the X-axis shown in fig. 1), a Y-axis moving component 14 (for realizing adjustment along the Y-axis in fig. 1), a Z-axis moving component 11 (for realizing adjustment along the Z-axis in fig. 1) and a Y-axis rotating component 13 (for realizing rotation around the Y-axis in fig. 1) which are connected with each other; the two-degree-of-freedom serial motion mechanism 3 is connected to the end of the four-degree-of-freedom serial motion mechanism 1 and comprises an X-axis rotating component 31 (for realizing the rotation around the X axis in the figure 1) and a Z-axis rotating component 32 (for realizing the rotation around the Z axis in the figure 1) which are connected with each other; the optical fiber holder 4 is connected to the end of the two-degree-of-freedom serial motion mechanism 3 for holding the optical fiber 5. The serial sequence of the X-axis moving assembly 12, the Y-axis moving assembly 14, the Z-axis moving assembly 11 and the Y-axis rotating assembly 13 is not limited; the connection sequence of the X-axis rotating assembly 31 and the Z-axis rotating assembly 32 with the four-degree-of-freedom serial motion mechanism 1 is not limited.
Because the mechanism that has adopted four degrees of freedom series motion mechanism and two degrees of freedom series motion mechanism to constitute realizes the six degrees of freedom regulation movements of optical fiber holder, the utility model provides an error that manual regulation brought in the optical fiber coupling debugging in-process has been avoided to adjusting device for optical fiber coupling, has improved optical fiber coupling's alignment accuracy, helps obtaining higher optical fiber coupling efficiency.
In one embodiment, the Z-axis moving assembly 11, the X-axis moving assembly 12, the Y-axis rotating assembly 13, and the Y-axis moving assembly 14 are connected in sequence; the Y-axis moving assembly 14 is connected to the two-degree-of-freedom serial motion mechanism 3.
In one embodiment, the X-axis rotation assembly 31 is coupled to the four degree-of-freedom serial kinematic mechanism 1 and the Z-axis rotation assembly 32 is coupled to the fiber holder 4. Based on the technical requirements of optical fiber coupling, the balance between the motion range and the motion precision can be realized in the case.
In one embodiment, the Z-axis moving assembly 11 includes a first motor 111, and the X-axis moving assembly 12 includes a second motor 121; the Y-axis rotating assembly 13 includes a third motor 131, and the Y-axis moving assembly 14 includes a fourth motor 141; the X-axis rotation assembly 31 includes a fifth motor 311, and the Z-axis rotation assembly 32 includes a sixth motor 321; the first motor 111, the second motor 121, the third motor 131, the fourth motor 141, the fifth motor 311, and the sixth motor 321 are electrically connected to a driver (not shown), and the drivers are electrically connected to a computer (not shown). Since the motors are connected to the computer, respectively, and their movements are ultimately controlled by the computer, the precision of the movement of the fiber holder 4 in 6 degrees of freedom is made higher. The first motor 111, the second motor 121, the third motor 131, and the fourth motor 141 may be stepping motors, and the fifth motor 311 and the sixth motor 321 may be servo motors.
In one embodiment, the Z-axis moving assembly 11 includes a first ball screw assembly driven by a first motor 111, and a second motor 121 connected to a nut of the first ball screw assembly; the X-axis moving assembly 12 includes a second ball screw pair driven by a second motor 121, and a third motor 131 is connected to a nut of the second ball screw pair; the Y-axis rotating assembly 13 includes a rotating platform 132 driven by a third motor 131, and a fourth motor 141 connected to the rotating platform 132; the Y-axis moving unit 14 includes a third ball screw pair 142 driven by a fourth motor 141, and a fifth motor 311 is connected to a nut of the third ball screw pair 142. Each ball screw pair may include a guide 143.
Each moving assembly does not comprise a ball screw pair, but adopts transmission forms such as a synchronous belt, a gear rack and the like; each moving assembly may include a linear motor and its components.
In one embodiment, the rotary platform 132 is connected to the output shaft of the third motor 131 through a bevel gear mechanism or a worm gear mechanism, thereby achieving the switching of the torque output direction of the third motor 131.
In one embodiment, the adjusting device includes a connecting arm 2, one end of the connecting arm 2 is connected to the nut of the third ball screw pair 142, the other end of the connecting arm 2 is provided with a U-shaped connecting member 21, the middle section of the U-shaped connecting member 21 is fixed to the connecting arm 2, and the fifth motor 311 is fixed to the side wall of the U-shaped connecting member 21.
In one embodiment, the X-axis rotating assembly 31 includes a first swing arm 313 driven by a fifth motor 311, the first swing arm 313 holding a sixth motor 321, the Z-axis rotating assembly 32 includes a second swing arm 322 driven by the sixth motor 321, the second swing arm 322 holding the fiber holder 4.
In one embodiment, the shaft end of the output shaft of the fifth motor 311 is provided with a spline (not shown), and the spline is matched with a key groove in the middle of the first rocker arm 313; both ends of the first swing arm 313 are provided with fixing holes 314 for fixing the sixth motor 321, and the sixth motor 321 may be fixed to the fixing holes 314 using a screw coupling or the like.
In one embodiment, the X-axis rotating assembly 31 includes two fifth motors 311, output shafts of the two fifth motors 311 are arranged in a line, and the two fifth motors 311 are respectively connected with a first swing arm 313. Since the two fifth motors 311 are arranged in line, the two fifth motors 311 may be connected to the same driver.
In one embodiment, the output shaft of the fifth motor 311 is connected to the first swing arm 313 through a first reduction gear train 312, and the output shaft of the sixth motor 321 is connected to the second swing arm 322 through a second reduction gear train.
In one embodiment, the fifth motor 311 is provided with a U-shaped mounting slot 315, and the U-shaped mounting slot 315 may be coupled to the connecting arm 2 by a threaded connection or other structure. The sixth motor 321 may also be provided with a U-shaped mounting slot.
In one embodiment, the optical fiber holder 4 includes a sleeve 41 connected to the end of the two-degree-of-freedom serial movement mechanism and a set screw 42 penetrating the wall surface of the sleeve 41; the ferrule 41 of the fiber holder 4 may be provided with a plurality of set screws 42 in different directions. The optical fiber holder 4 can fix various core diameters and various optical fiber joints; the input end face and the output end face of the optical fiber 5 are both coated with a laser antireflection coating system.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. An adjusting device for optical fiber coupling is characterized by comprising a four-degree-of-freedom serial motion mechanism, a two-degree-of-freedom serial motion mechanism and an optical fiber holder; the four-degree-of-freedom serial motion mechanism comprises an X-axis moving assembly, a Y-axis moving assembly, a Z-axis moving assembly and a Y-axis rotating assembly which are connected with each other; the two-degree-of-freedom serial motion mechanism is connected to the tail end of the four-degree-of-freedom serial motion mechanism and comprises an X-axis rotating assembly and a Z-axis rotating assembly which are connected with each other; the optical fiber holder is connected to the tail end of the two-degree-of-freedom serial motion mechanism.
2. The adjusting device for fiber coupling according to claim 1, wherein the Z-axis moving assembly, the X-axis moving assembly, the Y-axis rotating assembly and the Y-axis moving assembly are connected in sequence; the Y-axis moving assembly is connected with the two-degree-of-freedom serial motion mechanism.
3. The apparatus of claim 2, wherein the X-axis rotation assembly is coupled to the four-degree-of-freedom serial kinematic mechanism and the Z-axis rotation assembly is coupled to the fiber holder.
4. The adjustment device for fiber coupling of claim 1, wherein the Z-axis moving assembly comprises a first motor, and the X-axis moving assembly comprises a second motor; the Y-axis rotating assembly comprises a third motor, and the Y-axis moving assembly comprises a fourth motor; the X-axis rotating assembly comprises a fifth motor, and the Z-axis rotating assembly comprises a sixth motor; the first motor, the second motor, the third motor, the fourth motor, the fifth motor and the sixth motor are respectively electrically connected with a driver, and the drivers are respectively electrically connected with a computer.
5. The adjusting device for fiber coupling according to claim 4, wherein the Z-axis moving assembly comprises a first ball screw pair driven by the first motor, and the second motor is connected with a nut of the first ball screw pair; the X-axis moving assembly comprises a second ball screw pair driven by the second motor, and the third motor is connected with a nut of the second ball screw pair; the Y-axis rotating assembly comprises a rotating platform driven by a third motor, and the fourth motor is connected to the rotating platform; the Y-axis moving assembly comprises a third ball screw pair driven by the fourth motor, and the fifth motor is connected with a nut of the third ball screw pair.
6. The adjusting apparatus for coupling an optical fiber according to claim 5, wherein the adjusting apparatus includes a connecting arm, one end of the connecting arm is connected to the nut of the third ball screw pair, the other end of the connecting arm is provided with a U-shaped connecting member, the U-shaped connecting member includes a middle section and side walls connected to both sides of the middle section, the middle section is fixed to the connecting arm, and the fifth motor is fixed to the side walls.
7. The apparatus of claim 5, wherein the X-axis rotation assembly comprises a first rocker arm driven by the fifth motor, the first rocker arm securing the sixth motor, and the Z-axis rotation assembly comprises a second rocker arm driven by a sixth motor, the second rocker arm securing the fiber holder.
8. The adjusting apparatus for fiber coupling according to claim 7, wherein the X-axis rotating assembly comprises two of the fifth motors, output shafts of the two fifth motors are arranged in a line, and the two fifth motors are respectively connected with one of the first rocker arms.
9. The adjusting apparatus for fiber coupling according to claim 7, wherein the output shaft of the fifth motor is connected to the first rocker arm through a first reduction gear train, and the output shaft of the sixth motor is connected to the second rocker arm through a second reduction gear train.
10. The adjusting apparatus for optical fiber coupling according to any one of claims 1 to 9, wherein the optical fiber holder includes a sleeve connected to a distal end of the two-degree-of-freedom serial kinematic mechanism and a set screw inserted through a wall surface of the sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021326349.1U CN212965506U (en) | 2020-07-08 | 2020-07-08 | Adjusting device for optical fiber coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021326349.1U CN212965506U (en) | 2020-07-08 | 2020-07-08 | Adjusting device for optical fiber coupling |
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| Publication Number | Publication Date |
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| CN212965506U true CN212965506U (en) | 2021-04-13 |
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| CN202021326349.1U Active CN212965506U (en) | 2020-07-08 | 2020-07-08 | Adjusting device for optical fiber coupling |
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| CN (1) | CN212965506U (en) |
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