A fixture for fiber grating packaging

Abstract

The utility model belongs to the technical field of fiber grating, disclose a kind of for the jig of fiber grating packaging, it include: tensile structure, tensile structure includes cross bar, and the two sides of cross bar front are respectively equipped with fixed clamping frame and movable clamping frame, and fixed clamping frame and movable clamping frame top respectively install a group of electric push rod, its inside is equipped with the clamping plate connected with the telescopic end of electric push rod, and movable clamping frame one side is equipped with the digital display tensiometer that can transverse slip, compared with prior art, the utility model has the beneficial effects as follows: fiber two ends are placed in fixed clamping frame and movable clamping frame, and electric push rod drives clamping plate to descend and fix fiber;Threaded lead screw rotation makes driving slider, guiding slider slip, and movable clamping frame is driven away from fixed clamping frame by digital display tensiometer to stretch fiber, and tension lever is stretched along with fiber traction, and digital display tensiometer real-time display tension, it is convenient for observation, avoid fiber to break.

Description

Technical Field

[0001] This utility model specifically relates to a fixture for fiber Bragg grating packaging, belonging to the field of fiber Bragg grating technology. Background Technology

[0002] Fiber Bragg gratings need to be encapsulated to resist interference, prevent damage, and maintain accuracy. Encapsulation fixtures use positioning, clamping, and force application structures to fix them to the substrate, taking into account both protection and stress transfer, ensuring stable performance, and improving sensor reliability and lifespan. They are key equipment for large-scale application.

[0003] However, in traditional fiber optic packaging stretching, the control of stretching force largely relies on the operator's personal experience for manual stretching. This method is laborious and greatly affected by factors such as human operating habits and fatigue levels, making it difficult to guarantee the consistency and stability of the stretching force. The stretching parameters of the same batch of products often vary greatly, and existing equipment generally lacks a monitoring and feedback mechanism for real-time tension. Workers can only observe the fiber deformation with the naked eye or rely on their sense of touch to judge the degree of stretching. When the tension approaches the fiber's tolerance limit, it cannot be detected in time, and the fiber is very likely to break due to excessive tension. This not only causes direct waste of raw materials, but also delays the production process due to rework, significantly increasing production costs and time costs.

[0004] To address the aforementioned issues, this application proposes a fixture for fiber Bragg grating packaging. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a fixture for fiber Bragg grating encapsulation. The optical fiber is positioned with its two ends in a fixed clamping frame and a movable clamping frame, respectively. An electric push rod drives a clamping plate to descend and fix the optical fiber. A threaded screw rotates, causing a drive slider and a guide slider to slide. A digital force gauge moves the movable clamping frame away from the fixed clamping frame to stretch the optical fiber. A tension rod is pulled along with the optical fiber, and the digital force gauge displays the tension in real time for easy observation, preventing the optical fiber from breaking and solving the problems mentioned in the background art.

[0006] A fixture for fiber Bragg grating packaging includes:

[0007] A tension structure includes a crossbar, with a fixed clamping frame and a movable clamping frame respectively on the front two sides of the crossbar. A set of electric push rods are installed above the fixed clamping frame and the movable clamping frame respectively. The structure has a clamping plate inside that is connected to the telescopic end of the electric push rod. A digital display tension gauge that can slide laterally is provided on one side of the movable clamping frame, and the digital display tension gauge is fixedly connected to the movable clamping frame through a tension rod.

[0008] The lifting structure includes a lifting block installed on the rear side of the crossbar that can be lifted, and a lifting screw is threadedly connected above the lifting block. A sealing plate is provided below the crossbar, and a sealing groove is provided above the sealing plate.

[0009] In a preferred embodiment, the fixed clamping frame is fixedly connected to one end of the crossbar, and the fixed clamping frame and the movable clamping frame are arranged horizontally.

[0010] In a preferred embodiment, a positioning groove 1 is provided at the middle position of the lower surface of the clamping plate, and a set of positioning grooves 2 are respectively provided on the inner side of the movable clamping frame and the fixed clamping frame at the corresponding positions of the positioning groove 1. The cross-sections of the positioning groove 1 and the positioning groove 2 are both semi-circular structures and are mirror images of each other.

[0011] In a preferred embodiment, a guide groove is provided on one side of the crossbar, and the movable clamping frame and the digital display force gauge are slidably connected to the guide groove via guide sliders.

[0012] In a preferred embodiment, a sliding groove is provided below the guide groove, and a driving slider is slidably connected in the sliding groove. The upper end of the driving slider is fixedly connected to the guide slider connected to the digital display force gauge.

[0013] In a preferred embodiment, a threaded screw is installed on one side below the crossbar, and the threaded screw is threadedly connected to the lower end of the drive slider. A tension motor is installed below the crossbar, and the output shaft of the tension motor is connected to the threaded screw.

[0014] In a preferred embodiment, a set of side guide blocks are installed on both sides of the crossbar, and through holes are opened in the side guide blocks. A guide rod is provided in the through hole, and a base plate is fixedly connected to the lower end of the guide rod.

[0015] In a preferred embodiment, the encapsulation plate is fixedly installed above the base plate, and the upper end of the encapsulation groove is an upward-opening V-shaped structure, while the lower end is a rectangular structure.

[0016] In a preferred embodiment, a fixed upright plate is installed on the rear side of the base plate, and a lifting motor is installed on the fixed upright plate. The output shaft of the lifting motor is connected to a lifting screw, and the lower end of the lifting screw is rotatably connected to the base plate.

[0017] Beneficial effects:

[0018] 1. By designing a tensioning structure, the two ends of the optical fiber are placed in a fixed clamping frame and a movable clamping frame, respectively. The electric push rod drives the clamping plate to descend, thereby clamping and fixing the two ends of the optical fiber. Subsequently, the threaded screw rotates, which drives the guide slider to slide through the drive slider. Then, the movable clamping frame moves away from the fixed clamping frame through the digital display tension gauge, thereby stretching the optical fiber. The operation is simple and labor-saving. During stretching, the tension rod stretches under the traction of the clamped optical fiber. The tension on the optical fiber can be monitored and the value can be displayed in real time through the digital display tension gauge, which is convenient for staff to observe intuitively and can effectively avoid optical fiber breakage due to excessive tension.

[0019] 2. By designing a lifting structure, the substrate is first placed in the encapsulation groove; after the optical fiber is stretched, the lifting screw drives the lifting block to descend, and the crossbar drives the stretched and fixed optical fiber to descend synchronously, so that it enters the encapsulation groove and adheres to the substrate. This design can achieve the docking of the optical fiber and the substrate without complicated adjustments, thus improving the encapsulation efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0022] Figure 3 This is a top-down structural diagram of the present invention;

[0023] Figure 4 This is a schematic diagram of the packaging plate in this utility model;

[0024] Figure 5 for Figure 3 A magnified structural diagram of part A.

[0025] In the diagram, 1. Tensioning structure; 11. Crossbar; 12. Fixed clamping frame; 13. Electric actuator; 14. Clamping plate; 15. Movable clamping frame; 16. Guide groove; 17. Threaded screw; 18. Tensioning motor; 19. Guide slider; 110. Drive slider; 111. Digital display tension gauge; 2. Lifting structure; 21. Guide rod; 22. Side guide block; 23. Fixed upright plate; 24. Lifting motor; 25. Lifting screw; 26. Lifting block; 27. Encapsulation plate; 28. Encapsulation groove; 3. Base plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-5 As shown, a fixture for fiber Bragg grating packaging includes:

[0028] The tension structure 1 includes a crossbar 11. A fixed clamping frame 12 and a movable clamping frame 15 are respectively provided on the front two sides of the crossbar 11. A set of electric push rods 13 are respectively installed on the top of the fixed clamping frame 12 and the movable clamping frame 15. The inside of the fixed clamping frame 12 is provided with a clamping plate 14 connected to the telescopic end of the electric push rod 13. A digital display tension gauge 111 that can slide laterally is provided on one side of the movable clamping frame 15. The digital display tension gauge 111 is fixedly connected to the movable clamping frame 15 through a tension rod. When the optical fiber is clamped and fixed by the clamping plate 14 and the fixed clamping frame 12 and the movable clamping frame 15, when the movable clamping frame 15 moves to stretch the optical fiber, the optical fiber will generate a reaction force to pull the movable clamping frame 15, and then pull the tension rod connected to it. The digital display tension gauge 111 senses the deformation of the tension rod, converts it into an electrical signal and processes it, and displays the tensile force value of the optical fiber in real time.

[0029] The lifting structure 2 includes a lifting block 26 that can be lifted and lowered and installed on the rear side of the crossbar 11, and a lifting screw 25 is threadedly connected to the upper part of the lifting block 26. A sealing plate 27 is provided below the crossbar 11, and a sealing groove 28 is provided above the sealing plate 27.

[0030] Please see Figures 1-3 As shown, the fixed clamping frame 12 is fixedly connected to one end of the crossbar 11, and the fixed clamping frame 12 and the movable clamping frame 15 are set horizontally. The fixed clamping frame 12 and the crossbar 11 ensure the stability of clamping one end of the optical fiber. The horizontal setting of the two ensures that the optical fiber is in a horizontal state during the stretching process, avoiding the impact of angular deviation on the stretching accuracy and packaging effect.

[0031] Please see Figure 5 As shown, a positioning groove 1 is provided in the middle of the lower surface of the clamping plate 14. A set of positioning grooves 2 are respectively provided on the inner side of the movable clamping frame 15 and the fixed clamping frame 12 at the corresponding positions of the positioning groove 1. The cross-section of the positioning groove 1 and the positioning groove 2 are both semi-circular structures and are mirror images of each other. The corresponding arrangement of the positioning groove 1 and the positioning groove 2 can accurately position the optical fiber during clamping. The semi-circular and mirrored structure can be adapted to the shape of the optical fiber, enhancing the stability of the clamping and preventing the optical fiber from shifting during clamping and stretching.

[0032] Please see Figures 1-2 As shown, a guide groove 16 is provided on one side of the crossbar 11. The movable clamping frame 15 and the digital display tension gauge 111 are slidably connected to the guide groove 16 through the guide slider 19. The upper end of the drive slider 110 is fixedly connected to the guide slider 19 connected to the digital display tension gauge 111. The cooperation between the guide groove 16 and the guide slider 19 provides guidance for the lateral movement of the movable clamping frame 15 and the digital display tension gauge 111, ensuring the straightness of their movement trajectory and ensuring the smoothness of the fiber optic stretching process.

[0033] Please see Figures 1-2As shown, a sliding groove is provided below the guide groove 16, and a drive slider 110 is slidably connected in the sliding groove. The sliding groove provides movement space for the drive slider 110. The drive slider 110 is fixedly connected to the guide slider 19, and can transmit the driving force to the digital display tension gauge 111 and the movable clamping frame 15 to achieve synchronous movement of the two.

[0034] Please see Figures 1-3 As shown, a threaded screw 17 is installed on one side below the crossbar 11, and the threaded screw 17 is threadedly connected to the lower end of the drive slider 110. A tension motor 18 is installed below the crossbar 11, and the output shaft of the tension motor 18 is connected to the threaded screw 17. The tension motor 18 provides power to drive the threaded screw 17 to rotate, and through the threaded engagement, it drives the drive slider 110 to move, thereby realizing the lateral movement of the movable clamping frame 15 to complete the fiber optic stretching.

[0035] Please see Figures 1-3 As shown, a set of side guide blocks 22 are installed on both sides of the crossbar 11, and a through hole is opened in the side guide block 22. A guide rod 21 is installed in the through hole. The bottom plate 3 is fixedly connected to the lower end of the guide rod 21. The cooperation between the side guide block 22 and the guide rod 21 provides guidance and support for the lifting and lowering movement of the crossbar 11, ensuring that the crossbar 11 is stable and does not shake during the lifting and lowering process.

[0036] Please see Figure 1 and Figure 4 As shown, the encapsulation plate 27 is fixedly installed above the base plate 3. The upper end of the encapsulation groove 28 is an upward-opening V-shaped structure, and the lower end is a rectangular structure. The V-shaped structure at the upper end of the encapsulation groove 28 facilitates the guidance of optical fiber, and the rectangular structure at the lower end can limit the substrate and optical fiber to ensure accurate connection between the two.

[0037] Please see Figures 1-3 As shown, a fixed upright plate 23 is installed on the rear side of the base plate 3, and a lifting motor 24 is installed on the fixed upright plate 23. The output shaft of the lifting motor 24 is connected to the lifting screw 25. The lower end of the lifting screw 25 is rotatably connected to the base plate 3. The lifting motor 24 drives the lifting screw 25 to rotate, and the lifting of the crossbar 11 is achieved through the threaded engagement with the lifting block 26.

[0038] In practical use, the working principle of this utility model is as follows:

[0039] In use, the substrate is first placed in the encapsulation slot 28 of the encapsulation plate 27. Then, the two ends of the optical fiber are placed in the fixed clamping frame 12 and the movable clamping frame 15 on both sides in front of the crossbar 11, respectively. The electric push rod 13 drives the clamping plate 14 to descend. The positioning slot one and positioning slot two are used to clamp and fix the two ends of the optical fiber. Then, the tension motor 18 drives the threaded screw 17 to rotate. The drive slider 110, which is threaded to the threaded screw 17, moves in the sliding slot, which drives the guide slider 19, which is fixedly connected to it and located in the guide slot 16, to slide. Then, the digital display tension gauge 111 drives the movable clamping frame 15 to move away from the fixed clamping frame 12. The movable clamping frame 15 can also drive the guide slider 19 behind it to slide along the guide slot 16, thereby realizing the stretching of the optical fiber. During the stretching process, the tension rod is stretched under the traction of the clamped and fixed optical fiber. The digital display tension gauge 111 monitors and displays the tension on the optical fiber in real time, which is convenient for the staff to observe and avoid the optical fiber from breaking due to excessive tension.

[0040] After the optical fiber is stretched, the lifting motor 24 drives the lifting screw 25 to rotate, which in turn causes the lifting block 26 to descend. The crossbar 11 descends accordingly, and the side guide blocks 22 on both sides slide stably along the guide rod 21. The crossbar 11 drives the stretched and fixed optical fiber to descend synchronously, so that it can smoothly enter the encapsulation groove 28 and adhere to the substrate. The whole process can complete the precise docking of the optical fiber and the substrate without complicated adjustments, thus improving the encapsulation efficiency.

[0041] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. Moreover, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixture for fiber Bragg grating packaging, characterized in that, include: The tension structure (1) includes a crossbar (11). A fixed clamping frame (12) and a movable clamping frame (15) are respectively provided on the front two sides of the crossbar (11). A set of electric push rods (13) are respectively installed on the top of the fixed clamping frame (12) and the movable clamping frame (15). A clamping plate (14) connected to the telescopic end of the electric push rod (13) is provided inside. A digital display force gauge (111) that can slide laterally is provided on one side of the movable clamping frame (15). The digital display force gauge (111) is fixedly connected to the movable clamping frame (15) through a tension rod. The lifting structure (2) includes a lifting block (26) installed on the rear side of the crossbar (11) and a lifting screw (25) threadedly connected above the lifting block (26). A sealing plate (27) is provided below the crossbar (11), and a sealing groove (28) is provided above the sealing plate (27).

2. The fixture for fiber Bragg grating packaging as described in claim 1, characterized in that: The fixed clamping frame (12) is fixedly connected to one end of the crossbar (11), and the fixed clamping frame (12) and the movable clamping frame (15) are set horizontally.

3. The fixture for fiber Bragg grating packaging as described in claim 2, characterized in that: A positioning groove 1 is provided in the middle of the lower surface of the clamping plate (14). A set of positioning grooves 2 are provided on the inner side of the movable clamping frame (15) and the fixed clamping frame (12) respectively, corresponding to the positioning groove 1. The cross-sections of positioning groove 1 and positioning groove 2 are both semi-circular structures and are set in a mirror image.

4. The fixture for fiber Bragg grating packaging as described in claim 3, characterized in that: A guide groove (16) is provided on one side of the crossbar (11), and the movable clamping frame (15) and the digital display force gauge (111) are slidably connected to the guide groove (16) through the guide slider (19).

5. A fixture for fiber optic grating packaging as described in claim 4, characterized in that: A sliding groove is provided below the guide groove (16), and a drive slider (110) is slidably connected in the sliding groove. The upper end of the drive slider (110) is fixedly connected to the guide slider (19) connected to the digital display force gauge (111).

6. A fixture for fiber Bragg grating packaging as described in claim 5, characterized in that: A threaded screw (17) is installed on one side below the crossbar (11), and the threaded screw (17) is threadedly connected to the lower end of the drive slider (110). A tension motor (18) is installed below the crossbar (11), and the output shaft of the tension motor (18) is connected to the threaded screw (17).

7. A fixture for fiber Bragg grating packaging as described in claim 1, characterized in that: A set of side guide blocks (22) are installed on both sides of the crossbar (11), and a through hole is provided in the side guide block (22). A guide rod (21) is provided in the through hole, and a base plate (3) is fixedly connected to the lower end of the guide rod (21).

8. A fixture for fiber Bragg grating packaging as described in claim 7, characterized in that: The encapsulation plate (27) is fixedly installed above the base plate (3), and the upper end of the encapsulation groove (28) is an upward-opening V-shaped structure, and the lower end is a rectangular structure.

9. A fixture for fiber Bragg grating packaging as described in claim 8, characterized in that: A fixed upright plate (23) is installed on the rear side of the base plate (3), and a lifting motor (24) is installed on the fixed upright plate (23). The output shaft of the lifting motor (24) is connected to the lifting screw (25), and the lower end of the lifting screw (25) is rotatably connected to the base plate (3).

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