Main shaft structure for fiber winding machine

Abstract

The utility model discloses a main shaft structure for a fiber winding machine, which comprises a main shaft body, a framework used for winding optical fibers is fixed on the main shaft body, the main shaft structure further comprises a pair of mounting seats and a pair of clamps, the pair of mounting seats are fixedly sleeved on the main shaft body and are symmetrically arranged on two sides of the framework, and the pair of clamps are arranged on the mounting seats. The pair of clamps are symmetrically arranged on the two sides of the framework, and the pair of clamps are detachably connected with the pair of mounting seats respectively and used for winding the tail fiber of the optical fiber. According to the utility model, the problems of low coiling efficiency, large axial torsion stress, poor fiber coiling diameter consistency and loose coiling when the tail fiber is manually coiled by a worker at present can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber winding, in particular to a main shaft structure for a fiber winding machine. Background Art

[0002] An optical fiber gyroscope is an optoelectromechanical integrated precision inertial navigation instrument, which is widely used in guided weapons such as tactical missiles. As the core guidance component of various types of missiles, the demand for optical fiber gyroscopes is large and the navigation accuracy requirements are high, which requires the optical fiber gyroscope to have an efficient and reliable optical path assembly. The optical path assembly process is mainly to splice the pigtails of the used optoelectronic components in sequence. In order to leave enough pigtail margin for the pigtail splicing operation and the subsequent instrument repair operation, the pigtails at each end of the optoelectronic device generally have a length of 400 - 1000 mm. Therefore, after the pigtails are spliced, a large pigtail loop with a circumference of about 800 - 2000 mm will be formed, and the coiling worker manually coils the large pigtail loop into multiple turns of pigtail loops and puts them into the installation cavity for fixing and encapsulation.

[0003] The existing pigtail coiling of the optical path component completely depends on manual operation by workers, which takes 4h - 7h and has low production efficiency. At the same time, the operation habits of workers are different, and there is a lack of specific coiling process parameter guidance. The pigtail loops coiled manually often have problems such as large axial torsional stress, inconsistent coiling diameter, loose coiling, and non - adhering to the wall at the edge, resulting in uneven stress distribution of the pigtail loop, reducing the transmission power and service life of the pigtail, which also becomes one of the reasons why the accuracy of optical fiber gyroscopes in China is generally lower than that of foreign countries. Therefore, it is of great significance to design a device for coiling the pigtail of an optical fiber gyroscope. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a main shaft structure for a fiber winding machine, which solves the problems of low coiling efficiency, large axial torsional stress, poor consistency of coiling diameter, and loose coiling when workers manually coil the pigtail at present.

[0005] The utility model is realized through the following technical solutions:

[0006] A main shaft structure for a fiber winding machine includes a main shaft body, on which a skeleton for winding optical fiber is fixed. The main shaft structure further includes a pair of mounting seats and a pair of clamps. The pair of mounting seats are both fixedly sleeved on the main shaft body and symmetrically arranged on both sides of the skeleton. The pair of clamps are symmetrically arranged on both sides of the skeleton, and the pair of clamps are respectively detachably connected to the pair of mounting seats for winding the pigtail of the optical fiber.

[0007] Furthermore, the clamp includes a clamp body and at least one movable blade, and the movable blade is fixed on the clamp body through a locking member.

[0008] Further, mounting holes are formed in the movable blade, the mounting holes extend along the radial direction of the fixture body, and the locking member passes through the mounting holes and is threadedly connected to the fixture body.

[0009] Further, at least one fixed blade is formed on the fixture body, a first outer arc surface of the fixed blade and a second outer arc surface of the movable blade are co-circular, and the pigtail is wound around the first outer arc surface and the second outer arc surface.

[0010] Further, a column is formed at the middle position of the fixture body, and an assembly hole for cooperating with the mounting seat is formed in the column.

[0011] Further, a first through hole is formed on the outer peripheral surface of the column, a second through hole is formed on the outer peripheral surface of the mounting seat, and a locking screw sequentially passes through the first through hole and the second through hole and abuts against the main shaft body.

[0012] Further, a break is formed in the fixture body, and the break communicates with the assembly hole.

[0013] Further, the at least one fixed blade includes a pair of fixed blades, and the break is formed between the pair of fixed blades.

[0014] Further, the main shaft body is integrally formed and includes a first rod portion and a second rod portion connected to each other, an outer diameter of the second rod portion is larger than an outer diameter of the first rod portion, the pair of mounting seats and the skeleton are both sleeved on the first rod portion, the pair of mounting seats respectively abut against two sides of the skeleton, and one of the pair of mounting seats abuts against the second rod portion.

[0015] Further, the main shaft structure further includes a sleeve rod and a lock head, the sleeve rod is sleeved on the first rod portion, one end of the sleeve rod abuts against the other mounting seat of the pair of mounting seats, and the lock head is threadedly connected to the first rod portion and abuts against the other end of the sleeve rod.

[0016] Compared with the prior art, the advantages of the present utility model are as follows:

[0017] By providing a pair of mounting seats and a pair of fixtures on the main shaft body, and respectively winding the pigtails at both ends around the pair of fixtures, the problems of low winding efficiency, large axial torsional stress, poor consistency of the winding diameter, and loose winding when the worker manually winds the pigtail at present are solved. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of a main shaft structure for a fiber winding machine;

[0019] Figure 2A cross-sectional view of a main shaft structure for a fiber winding machine;

[0020] Figure 3 An exploded view of a partial structure of a main shaft structure for a fiber winding machine.

[0021] 1. Main shaft body; 10. First rod part; 11. Second rod part; 2. Skeleton; 3. Mounting seat; 30. Second through hole; 4. Fixture; 40. Fixture body; 400. Fixed blade; 401. First outer arc surface; 402. Column; 403. Assembly hole; 404. First through hole; 405. Fracture; 41. Movable blade; 410. Mounting hole; 411. Second outer arc surface; 42. Locking part; 5. Tail fiber; 6. Sleeve rod; 7. Lock head. Detailed implementation manners

[0022] The following further non-limiting detailed description of the technical solution of the utility model is made in conjunction with the preferred embodiments and their accompanying drawings. In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model and should not be construed as a limitation of the present utility model.

[0023] As Figures 1 - 3 shown, a main shaft structure for a fiber winding machine according to an embodiment of the present utility model includes a main shaft body 1, a skeleton 2 for winding optical fibers is fixed on the main shaft body 1, the main shaft structure further includes a pair of mounting seats 3 and a pair of fixtures 4. The pair of mounting seats 3 are both fixedly sleeved on the main shaft body 1 and symmetrically arranged on both sides of the skeleton 2, the pair of fixtures 4 are symmetrically arranged on both sides of the skeleton 2, and the pair of fixtures 4 are respectively detachably connected to the pair of mounting seats 3 for the tail fiber 5 for winding optical fibers. By providing a pair of mounting seats 3 and a pair of fixtures 4 on the main shaft body 1, the two ends of the tail fiber 5 are respectively wound around the pair of fixtures 4, solving the problems of low winding efficiency, large axial torsional stress, poor consistency of the winding diameter and loose winding when the worker manually winds the tail fiber 5 at present.

[0024] The fixture 4 includes a fixture body 40 and at least one movable blade 41, and the movable blade 41 is fixed to the fixture body 40 by a locking member 42.

[0025] An installation hole 410 is formed in the movable blade 41. The installation hole 410 extends along the radial direction of the fixture body 40, and the locking member 42 passes through the installation hole 410 and is threadedly connected to the fixture body 40. The installation hole 410 has a first end close to the spindle body 1 and a second end far from the spindle body 1. During installation, the locking member 42 abuts against the first end of the installation hole 410. During disassembly, the movable blade 41 moves under the action of gravity so that the locking member 42 abuts against the second end of the installation hole 410.

[0026] At least one fixed blade 400 is formed on the fixture body 40. The first outer arc surface 401 of the fixed blade 400 and the second outer arc surface 411 of the movable blade 41 are co-circular, and the pigtail 5 is wound around the first outer arc surface 401 and the second outer arc surface 411.

[0027] A column 402 is formed at the middle position of the fixture body 40, and an assembly hole 403 for cooperating with the mounting seat 3 is formed in the column 402.

[0028] A first through hole 404 is provided on the outer peripheral surface of the column 402, and a second through hole 30 is provided on the outer peripheral surface of the mounting seat 3. The locking screw sequentially passes through the first through hole 404 and the second through hole 30 and abuts against the spindle body 1.

[0029] A break 405 is also formed in the fixture body 40, and the break 405 communicates with the assembly hole 403.

[0030] In this embodiment, at least one fixed blade 400 includes a pair of fixed blades 400, and the break 405 is formed between the pair of fixed blades 400.

[0031] The spindle body 1 is integrally formed and includes a first rod portion 10 and a second rod portion 11 which are connected to each other. The outer diameter of the second rod portion 11 is larger than that of the first rod portion 10. A pair of mounting seats 3 and the skeleton 2 are both sleeved on the first rod portion 10. One of the pair of mounting seats 3 abuts against both sides of the skeleton 2, and one of the pair of mounting seats 3 abuts against the second rod portion 11.

[0032] The spindle structure further includes a sleeve rod 6 and a lock head 7. The sleeve rod 6 is sleeved on the first rod portion 10, and one end of the sleeve rod 6 abuts against the other mounting seat 3 of the pair of mounting seats 3. The lock head 7 is threadedly connected to the first rod portion 10 and abuts against the other end of the sleeve rod 6.

[0033] After coiling the pigtail fiber 5, fix the coiled pigtail fiber 5 with tape. Then, the lock head 7, the sleeve rod 6, the fixture 4, the mounting base 3 and the skeleton can be removed in sequence. Finally, the user can manually loosen the locking member 42, the movable blade 41 moves towards the main shaft body 1 along the direction of the mounting hole 410, and then the pigtail fiber 5 tightened by the fixed blade 400 and the movable blade 41 is loosened, and then the pigtail fiber 5 can be removed.

[0034] The above-described embodiments merely represent several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model shall be subject to the appended claims.

Claims

1. A main shaft structure for a fiber winding machine, comprising a main shaft body (1), on which a skeleton (2) for winding optical fiber is fixed, characterized in that: The main shaft structure also includes a pair of mounting seats (3) and a pair of clamps (4); the pair of mounting seats (3) are fixedly mounted on the main shaft body (1) and symmetrically arranged on both sides of the skeleton (2); the pair of clamps (4) are symmetrically arranged on both sides of the skeleton (2), and the pair of clamps (4) are respectively detachably connected to the pair of mounting seats (3) for winding the pigtail (5) of the optical fiber.

2. The main shaft structure for a fiber winding machine according to claim 1, characterized in that: The clamp (4) comprises a clamp body (40) and at least one movable blade (41); the movable blade (41) is fixed to the clamp body (40) via a locking member (42).

3. The main shaft structure for a fiber winding machine according to claim 2, characterized in that: The movable blade (41) is provided with a mounting hole (410), the mounting hole (410) extending along the radial direction of the clamp body (40), and the locking member (42) passes through the mounting hole (410) and is threadedly connected to the clamp body (40).

4. The main shaft structure for a fiber winding machine according to claim 2, characterized in that: At least one fixed blade (400) is formed on the clamp body (40), a first outer arc surface (401) of the fixed blade (400) and a second outer arc surface (411) of the movable blade (41) are cocircular, and the pigtail (5) is wound around the first outer arc surface (401) and the second outer arc surface (411).

5. The main shaft structure for a fiber winding machine according to claim 4, characterized in that: A column (402) is formed in the middle of the clamp body (40), and an assembly hole (403) matching with the mounting seat (3) is provided on the column (402).

6. The main shaft structure for a fiber winding machine according to claim 5, characterized in that: A first through hole (404) is provided on the outer circumferential surface of the column (402), a second through hole (30) is provided on the outer circumferential surface of the mounting seat (3), and a locking screw passes through the first through hole (404) and the second through hole (30) in sequence to abut against the main shaft body (1).

7. The main shaft structure for a fiber winding machine according to claim 5, characterized in that: The clamp body (40) is also provided with a fracture (405), and the fracture (405) is communicated with the assembly hole (403).

8. The main shaft structure for a fiber winding machine according to claim 7, characterized in that: The at least one fixed blade (400) includes a pair of fixed blades (400), and the fracture (405) is formed between the pair of fixed blades (400).

9. The main shaft structure for a fiber winding machine according to claim 1, characterized in that: The main shaft body (1) is integrally formed and comprises a first rod portion (10) and a second rod portion (11) which are connected to each other, the outer diameter of the second rod portion (11) is larger than the outer diameter of the first rod portion (10), the pair of mounting seats (3) and the frame (2) are both sleeved on the first rod portion (10), the pair of mounting seats (3) are respectively abutted against two sides of the frame (2), and one of the pair of mounting seats (3) is abutted against the second rod portion (11).

10. The main shaft structure for a fiber winding machine according to claim 9, characterized in that: The spindle structure further comprises a sleeve rod (6) and a locking head (7); the sleeve rod (6) is sleeved on the first rod portion (10), and one end of the sleeve rod (6) abuts against the other mounting seat (3) of the pair of mounting seats (3); the locking head (7) is threadedly connected to the first rod portion (10) and abuts against the other end of the sleeve rod (6).

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