Optical fiber excess length testing equipment

Abstract

The utility model relates to optical fiber excess length testing equipment, which aims at solving the technical problems that the current clamping device is easy to fix infirmly when fixing an optical fiber and is easy to damage the optical fiber, and comprises an L-shaped processing table of which the upper end surface is symmetrically and movably provided with tensioning assemblies, the tensioning assembly comprises a movable assembly movably arranged on the upper end face of the L-shaped machining table, the movable assembly comprises a base plate, a mold frame is arranged in the middle of the upper end face of the base plate, fixing holes are formed in the mold frame at equal intervals, the hole diameters of the fixing holes are gradually increased, and the fixing holes are suitable for fixing optical fibers of various sizes. The fixing assembly comprises fixing rings which are symmetrically arranged and fixed in the fixing holes, a plurality of groups of clamping parts are fixedly arranged between the inner edge surfaces of the fixing rings in an annular array mode, and each clamping part comprises arc-shaped connecting strips which are respectively arranged in the fixing rings and are symmetrically arranged in a staggered mode. And meanwhile, the fixing firmness of the optical fiber is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber processing and detection equipment, in particular to an optical fiber excess length testing device. Background Art

[0002] Optical fiber, full name optical fiber, is a bendable pure glass fiber made of glass or plastic. It is also a light transmission tool that uses the principle of total internal reflection to transmit light in these fibers.

[0003] The length of optical fiber in optical fiber communication system has an important impact on the quality and stability of signal transmission. In order to ensure the length accuracy of optical fiber, the excess length of optical fiber needs to be accurately measured.

[0004] When using the existing optical fiber excess length test equipment, the optical fiber to be tested needs to be fixed on the optical fiber clamp to ensure that the optical fiber remains stable. However, since the size and specifications of the optical fiber are not fixed, when fixing optical fibers of different sizes and specifications, a fixing head with movable adjustment is usually used to adapt to multi-size optical fibers. However, since the contact area between the fixing head and the optical fiber surface is small, it is easy to have an unstable fixation during fixation. Moreover, the small contact area during fixation will cause excessive pressure, which is easy to damage the optical fiber. Therefore, the traditional multi-size clamping device is very inconvenient during use. In view of this, we propose an optical fiber excess length test device. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings of the prior art, meet practical needs, and provide an optical fiber excess length testing device to solve the technical problems that the current clamping device is prone to loose fixation when fixing the optical fiber and is prone to damage the optical fiber.

[0006] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: designing an optical fiber excess length testing device, including an L-shaped processing table with a tensioning component symmetrically and movably arranged on the upper end surface;

[0007] The tensioning assembly comprises a movable assembly movably arranged on the upper end surface of the L-shaped processing table, the movable assembly comprises a base plate with a mold frame centrally constructed on the upper end surface, the mold frame is provided with equidistantly arranged fixing holes with gradually increasing apertures and adapted to fix optical fibers of various sizes, and a fixing assembly is fixedly arranged in the fixing holes;

[0008] The fixing assembly comprises a fixing ring which is symmetrically arranged and fixed in the fixing hole, and a plurality of groups of clamping parts are fixedly arranged in a circular array on the inner edge surface of the fixing ring;

[0009] The clamping component includes arc-shaped connecting strips which are respectively arranged in the fixing ring and are symmetrically arranged with each other. The opposite ends of the arc-shaped connecting strips are constructed with fixed ends, and the arc-shaped connecting strips are in an arc-shaped structure that can be elastically bent and deformed. The fixed ends are fixedly connected to the fixing ring, and the facing ends of the arc-shaped connecting strips are bent toward the axis of the fixing ring to form bent ends that can be elastically bent and deformed. One end of the bent end is constructed with a clamping end for clamping and fixing the optical fiber.

[0010] Preferably, a dual-axis motor is provided inside the L-shaped processing table, and positioning grooves are symmetrically provided inside the L-shaped processing table, and the dual-axis motor is connected to a screw rod rotatably installed in the positioning groove through a motor shaft.

[0011] Preferably, one side of the base plate is constructed with a slider which is slidably disposed in a positioning slot and movably engaged with the lead screw, and one side of the slider is fixedly provided with a grating ruler for measuring the length of the optical fiber.

[0012] Preferably, trapezoidal ribs are equidistantly arranged on both sides of the mold frame, and the trapezoidal ribs are fixedly connected to the base plate and the mold frame.

[0013] Preferably, an L-shaped plate is detachably mounted at both ends of one side of the L-shaped processing table, and a pneumatic scissors for cutting the two ends of the optical fiber is fixedly mounted on one side of the L-shaped plate.

[0014] Preferably, H-shaped supporting legs for supporting the L-shaped processing table are fixedly welded on both sides of the lower end surface, a connecting rod is connected between the H-shaped supporting legs, and a control cabinet is fixedly provided on one side of the connecting rod.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. By setting up a mold frame, a fixing ring and a clamping component, when testing the optical fiber, by opening a plurality of fixing holes with different apertures in the mold frame, it is convenient to adapt to the installation of fixing components of multiple sizes, so that optical fibers of different specifications and sizes can be fixed through fixing components of multiple sizes, which is convenient to adapt to the use of optical fibers of various specifications and sizes, and has strong applicability.

[0017] 2. Multiple groups of clamping components are fixedly arranged in a circular array between the inner edge surfaces of the fixing ring, and the clamping ends in the multiple groups of clamping components abut against the surface of the optical fiber to achieve fixation. The abutment of the multiple groups of clamping ends is conducive to evenly distributing the pressure on the optical fiber, which is conducive to improving the firmness of the optical fiber fixation and reducing the damage to the optical fiber caused by excessive pressure. The arc-shaped connecting strip is designed to be an elastically bendable arc structure, and an elastically bendable bending end is provided. When the optical fiber is tightened by the tensioning assembly, the eccentric force in the tensioning process is relieved by the elastic bending of the bending end and the arc-shaped connecting strip, thereby protecting the optical fiber fixing point. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the tensioning assembly of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the active component of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the fixing assembly of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the clamping component of the utility model;

[0023] Figure 6 For this utility model Figure 1 A magnified schematic diagram of the structure in the middle.

[0024] In the figure: 1. L-shaped processing table; 2. H-shaped supporting leg; 3. Connecting rod; 4. Control cabinet; 5. Pneumatic scissors; 6. Tensioning assembly; 7. Movable assembly; 701. Base plate; 702. Slider; 703. Grating ruler; 704. Mold frame; 705. Fixing hole; 706. Trapezoidal rib; 8. Fixing assembly; 801. Fixing ring; 9. Clamping component; 901. Arc-shaped connecting strip; 902. Fixed end; 903. Bending end; 904. Clamping end; 10. Positioning slide; 11. Dual-axis motor; 12. Screw. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0026] Embodiment 1: An optical fiber excess length test device, see Figure 1-Figure 5, including an L-shaped processing table 1 with a tensioning assembly 6 symmetrically and movably arranged on the upper end surface, the tensioning assembly 6 includes an active assembly 7 movably arranged on the upper end surface of the L-shaped processing table 1, the active assembly 7 includes a base plate 701 with a mold frame 704 centrally constructed on the upper end surface, the mold frame 704 is provided with equidistantly arranged fixing holes 705 with gradually increasing apertures and adapted to fix optical fibers of various sizes, the fixing holes 705 are fixedly arranged with fixing assemblies 8, the fixing assemblies 8 include fixing rings 801 symmetrically arranged and fixed in the fixing holes 705, and the inner edge surfaces of the fixing rings 801 are fixed in an annular array. A plurality of groups of clamping components 9 are provided, and the clamping components 9 include arc-shaped connecting strips 901 which are respectively arranged in the fixing ring 801 and are symmetrically arranged with each other. The opposite ends of the arc-shaped connecting strips 901 are each constructed with a fixed end 902, and the arc-shaped connecting strips 901 are in an arc-shaped structure which can be elastically bent and deformed. The fixed end 902 is fixedly connected to the fixing ring 801, and the facing ends of the arc-shaped connecting strips 901 are bent toward the axis of the fixing ring 801 to form a bending end 903 which can be elastically bent and deformed. One end of the bending end 903 is constructed with a clamping end 904 for clamping and fixing the optical fiber.

[0027] See also Figure 1 , Figure 3 and Figure 6 A dual-axis motor 11 is arranged inside the L-shaped processing table 1, and a positioning slot 10 is symmetrically opened inside the L-shaped processing table 1. The dual-axis motor 11 is connected to a lead screw 12 rotatably installed in the positioning slot 10 through a motor shaft. A slider 702 is constructed on one side of the base plate 701 and is slidably arranged in the positioning slot 10 and movably engaged with the lead screw 12. A grating ruler 703 for measuring the length of the optical fiber is fixedly arranged on one side of the slider 702. Trapezoidal ribs 706 are equidistantly arranged on both sides of the mold frame 704. The trapezoidal ribs 706 are fixedly connected to the base plate 701 and the mold frame 704.

[0028] See also Figure 1 L-shaped plates are detachably mounted on both ends of one side of the L-shaped processing table 1, and pneumatic scissors 5 for cutting both ends of the optical fiber are fixedly mounted on one side of the L-shaped plate. H-shaped support legs 2 for supporting the L-shaped processing table 1 are fixedly welded on both sides of the lower end surface, and a connecting rod 3 is connected between the H-shaped support legs 2, and a control cabinet 4 is fixedly arranged on one side of the connecting rod 3. The utility model solves the technical problem that the current clamping device is prone to unstable fixation when fixing the optical fiber and is prone to damage the optical fiber by setting a fixing component 8.

[0029] Working principle: When in use, the corresponding fixing component 8 can be selected according to the size of the optical fiber, and then the clamping end 904 is pressed to make the bending end 903 and the arc-shaped connecting strip 901 bend and deform elastically, and then the two ends of the optical fiber are respectively passed through the fixing ring 801, and after the clamping end 904 is released, the clamping end 904 is reset under the elastic force of the bending end 903 and the arc-shaped connecting strip 901, and the surface of the optical fiber clamped by the clamping end 904 is fixed, and then the double-axis motor 11 is started, and the motor shaft of the double-axis motor 11 drives the screw rod 12 to Rotate, so that the slider 702 slides in the positioning slide groove 10, and then the mold frame 704 drives the fixed component 8 to move, and the optical fiber is tightened by the fixed component 8. During the tightening process, when the tension overcomes the friction force, the clamping end 904 and the optical fiber slide relative to each other, and the optical fiber is always in a tightened state during the relative sliding process. During the movement of the slider 702, the grating ruler 703 can measure the length of the optical fiber. After the slider 702 is in place, the two ends of the optical fiber can be cut by starting the pneumatic scissors 5 to obtain an optical fiber sample of a specified length.

[0030] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. An optical fiber excess length testing device, characterized in that: It comprises an L-shaped processing table (1) on which a tensioning assembly (6) is symmetrically and movably arranged on the upper end surface; The tensioning assembly (6) comprises a movable assembly (7) movably arranged on the upper end surface of the L-shaped processing table (1), the movable assembly (7) comprising a base plate (701) having a mold frame (704) centrally constructed on the upper end surface, the mold frame (704) having fixing holes (705) with gradually increasing apertures and adapted to fix optical fibers of various sizes, equidistantly provided in the fixing holes (705), the fixing holes (705) having fixed apertures (705) being adapted to fix optical fibers of various sizes, the fixing assembly (8) being fixedly arranged in the fixing holes (705); The fixing assembly (8) comprises a fixing ring (801) which is symmetrically arranged and fixed in the fixing hole (705), and a plurality of groups of clamping components (9) are fixedly arranged in a ring array on the inner edge surface of the fixing ring (801); The clamping component (9) comprises arc-shaped connecting strips (901) which are respectively arranged in the fixing ring (801) and are symmetrically arranged in a staggered manner. The opposite ends of the arc-shaped connecting strips (901) are each configured with a fixing end (902). The arc-shaped connecting strips (901) are in an arc-shaped structure that can be elastically bent and deformed. The fixing end (902) is fixedly connected to the fixing ring (801). The opposite ends of the arc-shaped connecting strips (901) are bent toward the axis of the fixing ring (801) to form a bent end (903) that can be elastically bent and deformed. One end of the bent end (903) is configured to be connected to a clamping end (904) for clamping and fixing the optical fiber.

2. The optical fiber excess length testing device according to claim 1, characterized in that: A dual-axis motor (11) is arranged inside the L-shaped processing table (1), and positioning slots (10) are symmetrically provided inside the L-shaped processing table (1), wherein the dual-axis motor (11) is connected to a screw rod (12) rotatably mounted in the positioning slot (10) via a motor shaft.

3. The optical fiber excess length testing device according to claim 2, characterized in that: One side of the base plate (701) is provided with a slider (702) slidably disposed in the positioning slide groove (10) and movably engaged with the lead screw (12), and one side of the slider (702) is fixedly provided with a grating ruler (703) for measuring the length of the optical fiber.

4. The optical fiber excess length testing device according to claim 3, characterized in that: Trapezoidal ribs (706) are equidistantly arranged on both sides of the mold frame (704), and the trapezoidal ribs (706) are fixedly connected to the base plate (701) and the mold frame (704).

5. The optical fiber excess length testing device according to claim 1, characterized in that: L-shaped plates are detachably mounted on both ends of one side of the L-shaped processing table (1), and pneumatic scissors (5) for cutting the two ends of the optical fiber are fixedly mounted on one side of the L-shaped plate.

6. The optical fiber excess length testing device according to claim 1, characterized in that: H-shaped support legs (2) for supporting the L-shaped processing table (1) are fixedly welded to both sides of the lower end surface thereof, a connecting rod (3) is connected between the H-shaped support legs (2), and a control cabinet (4) is fixedly provided on one side of the connecting rod (3).

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