Variable diameter fiber bending device

Abstract

The utility model relates to a kind of variable-diameter optical fiber bending device, used as fixed tooling or used as follow-up structure;Including bottom plate, the movable block is slidably connected on the bottom plate, the outer circle contour surface of all movable blocks is always located on the same arc, the outer circle contour surface of all movable blocks is formed with accommodating groove, and the accommodating groove is used to limit the optical fiber to be bent. The present application is provided with a plurality of movable blocks in circumferential array, so that the outer circle contour of these movable blocks forms a variable-diameter arc. When the optical fiber passes through the contour formed by these movable blocks, it contacts the arc surface, and the optical fiber is bent with variable diameter without being easily damaged.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber processing equipment technology, and in particular to a variable diameter optical fiber bending device. Background Technology

[0002] In optical systems, a coiled cable fixing mechanism is often used to adjust the bending radius of optical fibers. Existing fixing mechanisms use cable ties to connect the optical fiber to the support frame for fixation.

[0003] This traditional mechanism is bulky and inconvenient to install due to its fixed bending radius, making it unsuitable when the spacing between optical components in the optical path is small and installation space is limited. Furthermore, it often exists in the form of a support frame, and its stability is affected when the entire mechanism moves and the support frame is subjected to external acceleration. Utility Model Content

[0004] In response to the shortcomings of the existing production technology, the applicant provides a structurally sound variable-diameter optical fiber bending device that solves the problems of the invariable bending radius and motion stability of existing optical fibers.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A variable-diameter optical fiber bending device, used as a fixed fixture or as a follower structure, includes a base plate on which movable blocks are slidably connected, the outer circular contour surfaces of all movable blocks always lying on the same arc.

[0007] All moving blocks have receiving grooves formed on their outer circular contour surfaces, which are used to limit the optical fiber to be bent.

[0008] As a further improvement to the above technical solution:

[0009] The movable blocks are configured as a fan-shaped structure of several circular arrays, and each movable block is individually slidably connected to the base plate.

[0010] An adjustment gap is reserved between adjacent movable blocks.

[0011] Each movable block is a sector-shaped block with radially arranged sliding grooves; the base plate has mounting holes; mounting pins are connected through the mounting holes and sliding grooves.

[0012] When used as a fixed fixture, the relative positions of the base plate and the movable block remain constant during a single machining process.

[0013] When used as a follower structure, the base plate and the movable block rotate synchronously around the center of the circle formed by the movable blocks during a single processing.

[0014] A rotating shaft runs through the base plate, and the rotating shaft is located at the center of the circle formed by the movable blocks; a follower block extends radially from the rotating shaft, and the follower block pushes the movable blocks and the base plate to rotate with the rotating shaft.

[0015] At least one follower block extends from the rotating shaft, and the follower block abuts against the movable block, or the follower block abuts between two adjacent movable blocks.

[0016] The movable block is recessed on the side opposite to the base plate, and the follower block abuts against the recessed part of the movable block.

[0017] The rotating shaft is axially extendable; the rotating shaft is connected to a motor, and the rotating shaft and the motor are driven by a cylinder to reciprocate.

[0018] The beneficial effects of this utility model are as follows:

[0019] This utility model has a compact and reasonable structure and is easy to operate. By designing multiple circumferential array of movable blocks, the fan-shaped outer edges of these movable blocks form a ring-shaped receiving groove structure with a variable diameter. The light to be processed passes through this receiving groove and is bent into a specified arc.

[0020] Because the relative position between the movable block and the base plate is adjustable, the diameter of the receiving groove can also change with the displacement of the movable block. When the movable block moves towards the center, the diameter of the entire annular receiving groove decreases, and vice versa.

[0021] It should be noted that although the curvature of the bottom wall of the receiving slot on a single movable block is fixed, there is an adjustable gap between adjacent receiving slots. Even if the adjustable gap is removed after all the movable blocks are assembled and there is a slight transitional indentation between each receiving slot, there is no external force pressing the optical fiber to be completely flat against the bottom of the receiving slot. Therefore, the optical fiber only needs a curved surface with a guiding function to complete the bending. Practical operation has also proven that this fine adjustment and minute dimensional accuracy have no impact on the bending of the optical fiber. Therefore, this application has the advantages of simple operation and good bending effect. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the mating structure of the movable block and the base plate of this utility model.

[0023] Figure 2 This is a schematic diagram of the cooperation structure between the movable block and the base plate from another perspective of this utility model.

[0024] Figure 3 This is the back structure of the base plate of this utility model.

[0025] Figure 4 This is a schematic diagram illustrating the cooperation between a follower block structure and a movable block according to this utility model.

[0026] Figure 5This is a schematic diagram illustrating the cooperation between another follower block structure and the movable block of this utility model.

[0027] Figure 6 for Figure 5 A structural diagram from another perspective.

[0028] Figure 7 for Figure 5 Side view.

[0029] The components include: 1. base plate; 2. movable block; 3. receiving groove; 4. adjustment gap; 5. sliding groove; 6. mounting pin; 7. rotating shaft; 8. follower block; 9. motor; 10. cylinder; 11. recessed space.

[0030] 101. Mounting hole. Detailed Implementation

[0031] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0032] like Figures 1-7 As shown, the variable-diameter fiber bending device of this embodiment can be used as a fixed fixture or as a follower structure; it includes a base plate 1, on which movable blocks 2 are slidably connected, and the outer circular contour surfaces of all movable blocks 2 are always located on the same arc.

[0033] All movable blocks 2 have a receiving groove 3 formed on their outer circular contour surface. The receiving groove 3 is used to limit the optical fiber to be bent.

[0034] The movable block 2 is set as a fan-shaped structure of several circular arrays, and each movable block 2 is individually slidably connected to the base plate 1.

[0035] An adjustment gap 4 is reserved between adjacent movable blocks 2.

[0036] Each movable block 2 is a sector-shaped block, and a radially arranged sliding groove 5 is provided on the movable block 2; the base plate 1 is provided with a mounting hole 101; a mounting nail 6 is connected through the mounting hole 101 and the sliding groove 5.

[0037] When used as a fixed fixture, the relative positions of the base plate 1 and the movable block 2 remain constant during a single processing cycle.

[0038] When used as a follower structure, the base plate 1 and the movable block 2 rotate synchronously around the center of the circle formed by the movable block 2 during a single processing.

[0039] A rotating shaft 7 runs through the base plate 1, and the rotating shaft 7 is located at the center of the circle formed by the movable blocks 2; a follower block 8 extends radially from the rotating shaft 7, and the follower block 8 pushes the movable blocks 2 and the base plate 1 to rotate with the rotating shaft 7.

[0040] At least one follower block 8 extends from the rotating shaft 7, and the follower block 8 abuts against the movable block 2, or the follower block 8 abuts between two adjacent movable blocks 2.

[0041] The movable block 2 is recessed on the side opposite to the base plate 1, and the follower block 8 abuts against the recess of the movable block 2.

[0042] The rotating shaft 7 is axially extendable; the rotating shaft 7 is connected to a motor 9, and the rotating shaft 7 and the motor 9 are driven by the cylinder 10 to reciprocate.

[0043] The specific structure and working principle of this utility model are as follows:

[0044] Example 1:

[0045] In this embodiment, the variable diameter fiber bending device is used as a fixed fixture, that is, the bending device is fixed and the fiber is pulled by other power sources, such as a winding machine. The entire variable diameter fiber bending device is equivalent to a fixed pulley. After the fiber passes through the device, it is obtained as a bent fiber.

[0046] In this embodiment, the base plate 1 serves as the installation foundation, and openings are made on the base plate 1 as follows: Figure 3 The mounting holes 101 are shown. At least two concentric circles of mounting holes 101 are formed, with multiple mounting holes 101 in each circle. At least one mounting hole 101 corresponds to the mounting of one movable block 2. To improve connection strength and stability, in this embodiment, each movable block 2 is equipped with two mounting holes 101, which are located on the same concentric circle.

[0047] In the two rings of mounting holes 101, if the movable block 2 is installed in the outer ring of mounting holes 101, the bending diameter of the finished optical fiber will be larger; if the movable block 2 is installed in the inner ring of mounting holes 101, the bending diameter of the finished optical fiber will be smaller.

[0048] Similarly, three or more rings of mounting holes 101 can be provided to provide more mounting positions for the movable block 2.

[0049] Reference Figure 1 and Figure 2 The movable blocks 2 are arranged in a circular array on the base plate 1. In this embodiment, four movable blocks 2 are used as an example for explanation.

[0050] Each movable block 2 adopts a fan-shaped structure, and a receiving groove is provided on the outer circle contour of the movable block 2. The receiving groove is used to accommodate the optical fiber to be bent.

[0051] An adjustment gap 4 is reserved between adjacent movable blocks 2. When the movable block 2 moves towards the center, the adjustment gap 4 decreases; when the movable block 2 moves away from the center, the adjustment gap 4 increases. Theoretically, the adjustment gap 4 can be reduced to the point where adjacent movable blocks 2 fit together.

[0052] Example 2:

[0053] In this embodiment, the variable diameter fiber bending device is used as a follower structure, that is, the bending device is driven to rotate by an external power source, and the fiber is directly driven to rotate by the movable block 2. The variable diameter fiber bending device is equivalent to a winding machine, which winds up the fiber.

[0054] Each movable block 2 adopts a fan-shaped structure, and an arc-shaped concave structure is also set near the center position, so that the center positions of multiple movable blocks 2 avoid the position of the rotating shaft 7.

[0055] like Figure 3 The diagram shows an optional structure for the rotating shaft 7 and the follower block 8. (Refer to reference...) Figure 7 The rotating shaft 7 is equipped with a motor 9, which drives the rotating shaft 7 to rotate. The motor 9 is mounted on a support frame made of angle steel or shaped steel. The cylinder 10 or hydraulic cylinder pushes the support frame and the motor 9, so that the rotating shaft 7 can extend and retract axially.

[0056] When the rotating shaft 7 extends, Figure 4 The follower block 8 extends axially away from the adjustment gap of the movable block 2 along with the rotating shaft 7; when rotation is required, the follower block 8 retracts along with the rotating shaft 7 and falls into the adjustment gap. When rotating, the movable block 2 can be pushed to one side of the rotation direction, causing the base plate 1 to rotate as a winding rotating component to wind up the optical fiber.

[0057] Example 3:

[0058] like Figure 5 and Figure 6 As shown, the difference from Embodiment 2 is that in this embodiment, the follower block 8 falls into the recessed space of the movable block 2, and when the rotating shaft 7 extends, Figure 6 The follower block 8 extends axially away from the recessed space of the movable block 2 along with the rotating shaft 7; when rotation is required, the follower block 8 retracts along with the rotating shaft 7 and falls into the recessed space. When rotating, the movable block 2 can be pushed to one side of the rotation direction, causing the base plate 1 to rotate as a winding rotating component to wind up the optical fiber.

[0059] In this embodiment, the follower block 8 is designed as a stepped part where the edge of the follower block 8 and the edge of the active block 2 overlap in the circumferential projection in order to avoid the edge of the active block 2. This allows the axially protruding follower block 8 to be embedded in the recessed space.

[0060] Example 4:

[0061] To facilitate the movement of the follower block 8 against and push the movable block 2, the follower block 8 can be made of a deformable material such as rubber, or a rubber layer can be attached to a hard material to increase the contact area through deformation, thereby improving the transmission stability.

[0062] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A variable-diameter optical fiber bending device, characterized in that: Used as a fixed tooling or as a follower structure; including a base plate (1), on which movable blocks (2) are slidably connected, the outer circular contour surfaces of all movable blocks (2) always located on the same arc. All movable blocks (2) have a receiving groove (3) formed on their outer circular contour surface. The receiving groove (3) is used to limit the optical fiber to be bent.

2. The variable-diameter optical fiber bending device as described in claim 1, characterized in that: The movable block (2) is configured as a fan-shaped structure of several circular arrays, and each movable block (2) is individually slidably connected to the base plate (1).

3. The variable-diameter optical fiber bending device as described in claim 2, characterized in that: An adjustment gap (4) is reserved between adjacent movable blocks (2).

4. The variable-diameter optical fiber bending device as described in claim 2, characterized in that: Each movable block (2) is a fan-shaped block, and a radially arranged sliding groove (5) is provided on the movable block (2); the base plate (1) is provided with a mounting hole (101); a mounting nail (6) is connected through the mounting hole (101) and the sliding groove (5).

5. The variable-diameter optical fiber bending device as described in claim 1, characterized in that: When used as a fixed fixture, the relative positions of the base plate (1) and the movable block (2) remain constant during a single processing cycle.

6. The variable diameter optical fiber bending device as described in claim 1, characterized in that: When used as a follower structure, the base plate (1) and the movable block (2) rotate synchronously around the center of the circle formed by the movable block (2) during a single processing.

7. The variable-diameter optical fiber bending device as described in claim 6, characterized in that: A rotating shaft (7) runs through the base plate (1), and the rotating shaft (7) is located at the center of the circle formed by the movable block (2); a follower block (8) extends radially from the rotating shaft (7), and the follower block (8) pushes the movable block (2) and the base plate (1) to rotate with the rotating shaft (7).

8. The variable-diameter optical fiber bending device as described in claim 7, characterized in that: At least one follower block (8) extends from the rotating shaft (7), the follower block (8) abuts against the movable block (2), or the follower block (8) abuts between two adjacent movable blocks (2).

9. The variable-diameter optical fiber bending device as described in claim 8, characterized in that: The movable block (2) is recessed on the side away from the bottom plate (1), and the follower block (8) abuts against the recess of the movable block (2).

10. The variable-diameter optical fiber bending device as described in claim 9, characterized in that: The rotating shaft (7) is axially extendable; the rotating shaft (7) is connected to a motor (9), and the rotating shaft (7) and the motor (9) are driven to reciprocate by a cylinder (10).

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