Symmetrical automatic reverse shaft winding mechanism for optical fiber winding machine

Abstract

The present invention relates to a symmetrical automatic reverse shaft winding mechanism for an optical fiber winding machine, comprising a reverse shaft assembly consisting of a skeleton pressure plate, a skeleton shaft, a skeleton locking nut, a skeleton, a rotating shaft, a rotating shaft locking nut, and a limiting spacer sleeve, and a cylinder assembly consisting of a reverse shaft bracket, a swing cylinder, a connecting plate 1, a guide rod cylinder, a connecting plate 2, and a base. The reverse shaft assembly adopts a symmetrical structure, and the limiting spacer sleeves are distributed on both sides of the skeleton assembly. Through the reverse shaft bracket, the swing cylinder and the guide rod cylinder can realize 180-degree horizontal rotation and vertical lifting. The automatic reverse shaft winding mechanism solves the problem that most optical fiber winding machines on the market perform optical fiber winding by changing the direction of the take-up motor, and can make the position of the optical fiber entry point remain unchanged before and after the reversing winding, and there is no need to readjust the camera position, thereby ensuring the winding quality, improving the winding efficiency, realizing automation, reducing the operation of manual shaft lifting and steering, making the operation more convenient, and improving production efficiency.

Description

Technical Field

[0001] The invention relates to an automatic optical fiber ring winding machine, in particular to a symmetrical automatic reverse shaft winding mechanism used for the optical fiber ring winding machine. Background Art

[0002] Fiber optic gyroscope was born in 1976. It is a new type of sensor that uses fiber optic sensing technology to measure the inertial rotation rate in space. It has now developed into a new mainstream instrument with epoch-making characteristics in the field of inertial technology. Compared with the commonly used mechanical gyroscope and the laser gyroscope developed in recent years, it has higher accuracy, low cost, small size and light weight. The application prospects of fiber optic gyroscope are very broad. It is not only used for navigation of aircraft and ships, missile guidance, and high-precision position control of spacecraft, but also can be used in the guidance of high-end cars, robots and automatic control systems in civilian use.

[0003] The fiber optic ring is the sensing core of the fiber optic gyroscope. The basic requirements for it are a large extinction ratio and good reciprocity. How to wind a high-quality fiber optic ring is very important for the development of a fiber optic gyroscope. There are many winding methods. The four-pole symmetrical winding method has the best effect and is an internationally used method. The sixteen-pole winding fiber optic gyroscope has the advantage of high precision, so it is also a very common fiber optic winding method. The existing sixteen-stage fiber optic ring winding machine is wound by constantly switching the direction of the take-up motor. The motor has a short service life and a high failure rate. Moreover, after the motor is reversed, the fiber entry point changes, and the camera position needs to be adjusted, which makes the operation complicated and reduces production efficiency. Summary of the invention

[0004] In view of the problems existing in the prior art, the present invention provides a symmetrical automatic inverted shaft winding mechanism for an optical fiber winding machine, wherein the inverted shaft part adopts a symmetrical structure, and two limiting spacers are distributed on both sides of the skeleton component. The inverted shaft part can realize 180-degree horizontal rotation by using a swing cylinder through an inverted shaft bracket, thereby ensuring the winding quality and improving the winding efficiency. The specific technical scheme is a symmetrical automatic inverted shaft winding mechanism for an optical fiber winding machine, comprising an inverted shaft assembly consisting of a skeleton pressure plate, a skeleton shaft, a skeleton locking nut, a skeleton, a rotating shaft, a rotating shaft locking nut, and a limiting spacer, and a cylinder assembly consisting of an inverted shaft bracket, a swing cylinder, a connecting plate one, a guide rod cylinder, a connecting plate two, and a base, characterized in that: two skeleton pressure plates are oppositely placed at the two ends of the skeleton, the skeleton shaft passes through the center holes of the two skeleton pressure plates and the skeleton, and is tightened with a skeleton locking nut, and the grooves on the two limiting spacers are close to the skeleton assembly The two skeleton pressure plates are symmetrically placed at both ends of the skeleton assembly, the rotating shaft passes through the center holes of the two limit spacers, and are fastened together with the rotating shaft locking nut to form an inverted shaft assembly; the two inverted shaft brackets are symmetrically fixed to the upper end surface of the connecting plate one and are fixed to the swing cylinder through the connecting plate one, the swing cylinder is fixed to the guide rod cylinder through the connecting plate two, and the guide rod cylinder is fixed to the base to form a cylinder assembly. The cylinder assembly can realize rising, falling and degree of rotation, and the grooves on the two limit spacers of the inverted shaft assembly are stuck in the flat-bottomed semicircular grooves of the two inverted shaft brackets of the cylinder assembly.

[0005] The frame pressing plate is a disc with a vertical boss at the edge and a center hole. A circular groove is provided near the center hole of the disc so that the frame can be embedded in the circular groove of the frame pressing plate to fix the frame.

[0006] The skeleton shaft is a hollow shaft, one end of which is provided with a knurled boss, the inner diameter of the skeleton shaft is tightly matched with the outer diameter of the rotating shaft, and the outer diameter of the skeleton shaft is tightly matched with the inner diameter of the skeleton pressing plate.

[0007] The two ends of the spacer are provided with convex shoulders, an I-shaped sleeve with a central through hole, and a rectangular opening limiting groove matching the flat bottom semicircular groove of the inverted shaft bracket is also provided on the straight tube of the I-shaped sleeve.

[0008] The rotating shaft is a T-shaped cylinder with a raised flange surface at one end and a thread at the other end, and positioning grooves are arranged at the centers of the end surfaces at both ends of the rotating shaft.

[0009] The inverted shaft bracket is an L-shaped bent sheet metal structure, a flat-bottomed semicircular groove is arranged on the end surface of the long side of the sheet metal, and four oblong holes are arranged on the short side of the sheet metal.

[0010] The technical effects of the present invention are as follows: (1) there is no need to frequently switch the direction of the take-up motor, which reduces the complexity of operation, improves work efficiency, increases the service life of the motor, and improves economy. (2) The direction of the take-up remains unchanged, so that the starting point of the take-up during the optical fiber winding process always faces the operator, so that corresponding adjustments can be made immediately according to different situations; (3) The position of the optical fiber entry point remains unchanged before and after the inverted shaft, so the camera irradiation position does not need to be adjusted again. (4) The starting point of the winding process is the same as the wiring direction, making the work more organized. (5) The level of automation is improved, reducing the operation of manual lifting and steering, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is the overall structural diagram of the present invention;

[0012] Figure 2 It is a structural diagram of the skeleton assembly of the present invention;

[0013] Figure 3 It is a structural diagram of the rotating shaft of the present invention;

[0014] Figure 4 It is a structural diagram of the limiting spacer sleeve of the present invention;

[0015] Figure 5 This is a structural diagram of the inverted shaft support of the present invention;

[0016] Figure 6 This is a structural diagram of a connecting plate of the present invention;

[0017] Figure 7 It is the structural diagram of the swing cylinder of the present invention;

[0018] Figure 8 This is a structural diagram of the second connecting plate of the present invention;

[0019] Fig. 9 It is the structural diagram of the guide rod cylinder of the present invention;

[0020] Fig.10 It is a structural diagram of the base of the present invention. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below with reference to the accompanying drawings.

[0022] like Figures 1 to 10As shown, the symmetrical automatic inverted shaft winding mechanism for the optical fiber ring winding machine includes an inverted shaft assembly consisting of a skeleton pressing plate 102, a skeleton shaft 101, a skeleton locking nut 103, a skeleton 104, a rotating shaft 105, a rotating shaft locking nut 106, and a limiting spacer 107, and a cylinder assembly consisting of an inverted shaft bracket 301, a swing cylinder 302, a connecting plate 1 303, a guide rod cylinder 304, a connecting plate 2 305, and a base 306. The swing cylinder 302 adopts the MSQ-A-30A-M9BW-XN swing cylinder of SMC, and the guide rod cylinder 304 adopts the MGPM32TF-75AZ-M9BW-XC79 guide rod cylinder of SMC.

[0023] The frame pressing plate 102 is a disc with a central hole and a vertical boss at the edge. A circular groove is provided near the central hole of the disc, so that 104 is embedded in the circular groove of the frame pressing plate 102 to fix the frame 104.

[0024] The skeleton shaft 101 is a hollow shaft with a knurled boss at one end. The inner diameter of the skeleton shaft 101 is tightly matched with the outer diameter of the rotating shaft 105 , and the outer diameter of the skeleton shaft 101 is tightly matched with the inner diameter of the skeleton pressing plate 102 .

[0025] The spacer sleeve 107 has bosses 107b at both ends, an I-shaped sleeve with a central through hole 107a therein, and a rectangular opening limiting groove 107d that cooperates with the flat-bottomed semicircular groove 301a of the inverted shaft bracket 301 is provided on the straight tube 107c of the I-shaped sleeve.

[0026] The inverted shaft bracket 301 is an L-shaped bent sheet metal structure, with a flat bottom semicircular groove 301a on the long side of the sheet metal and four oblong holes 301c on the short side of the sheet metal. The inverted shaft bracket 301 supports the limit spacer 203 and the B limit spacer 204 and limits their axial movement.

[0027] The rotating shaft 201, the rotating shaft locking nut 202, the base 306 and the inverted shaft bracket 301 are made of 304 stainless steel, and the skeleton component, A limit spacer 203, B limit spacer 204, connecting plate 1 303 and connecting plate 2 305 are made of lightweight material 6061 aluminum alloy.

[0028] The two frame pressing plates 102 are placed opposite to each other at the two ends of the frame 104, the frame shaft 101 passes through the center holes of the two frame pressing plates 102 and the frame 104, and is locked with a frame locking nut 103, the grooves 107d on the two limiting spacers 107 are close to the two frame pressing plates 102 of the frame assembly and are symmetrically placed at the two ends of the frame assembly, the rotating shaft 106 passes through the center holes of the two limiting spacers 107, and is fastened and fixed into one body with the rotating shaft locking nut 106 to form an inverted shaft assembly; the two inverted shaft brackets 301 are symmetrically fixed to the upper end surface of the connecting plate 1 303 and are fixed to the swing cylinder 302 through the connecting plate 1 303, the swing cylinder 302 is fixed to the guide rod cylinder 304 through the connecting plate 2 305, and the guide rod cylinder 304 is fixed to the base to form a cylinder assembly, which can be raised, lowered and rotated 180 degrees, and the grooves 107d on the two limiting spacers 107 of the inverted shaft assembly d is clamped in the flat-bottomed semicircular grooves 301a of the two inverted shaft brackets 301 of the cylinder assembly.

[0029] Working principle:

[0030] The guide rod cylinder 304 is used as a lifting cylinder, and the swing cylinder 302 is a swing cylinder that can rotate horizontally 180 degrees. The initial position of the guide rod cylinder 304 is the shortest position where the guide rod extends out of the cylinder; the initial position of the swing cylinder 302 is the position where the long side of the top surface of the cylinder base is parallel to the rotating axis 105; the position when the main shaft of the optical fiber winding machine contacts the two end axes of the rotating axis 105 is the initial position.

[0031] (1) Ventilate the guide rod cylinder 304 to extend the cylinder from its initial position, so that the semicircular limiting groove 301a of the guide shaft bracket 301 is embedded in the limiting groove 107d of the spacer 107;

[0032] (2) The main shaft of the optical fiber winding machine is separated from the initial position to both ends, and the connection with the rotating shaft 105 is disconnected;

[0033] (3) Ventilate the guide rod cylinder 304 to return the cylinder to its initial position;

[0034] (4) Ventilate the swing cylinder 302 to rotate it 180 degrees from its initial position;

[0035] (5) Ventilate the guide rod cylinder 304 to extend the cylinder from its initial position;

[0036] (6) The main axis of the optical fiber winding machine returns to its initial position;

[0037] (7) Ventilate the guide rod cylinder 304 to return the cylinder to its initial position.

Claims

1. A symmetrical automatic inverted shaft winding mechanism for an optical fiber ring winding machine, comprising an inverted shaft assembly consisting of a skeleton pressing plate (102), a skeleton shaft (101), a skeleton locking nut (103), a skeleton (104), a rotating shaft (105), a rotating shaft locking nut (106), and a limiting spacer (107), and a cylinder assembly consisting of an inverted shaft bracket (301), a swing cylinder (302), a connecting plate 1 (303), a guide rod cylinder (304), a connecting plate 2 (305), and a base (306), characterized in that: The two frame pressing plates (102) are placed opposite to each other at the two ends of the frame (104), the frame shaft (101) is passed through the center holes of the two frame pressing plates (102) and the frame (104), and is locked with the frame locking nut (103), and the grooves (107) on the two limit spacers (107) are d) Two frame pressure plates (102) close to the frame assembly are symmetrically placed at both ends of the frame assembly, and the rotating shaft (105) passes through the center holes of the two limiting spacers (107) and is locked and fixed into one piece by a rotating shaft locking nut (106) to form an inverted shaft assembly; two inverted shaft brackets (301) are symmetrically fixed to the upper end surface of the connecting plate 1 (303) and fixed to the swing cylinder (302) through the connecting plate 1 (303), the swing cylinder (302) is fixed to the guide rod cylinder (304) through the connecting plate 2 (305), and the guide rod cylinder (304) is fixed to the base to form a cylinder assembly. The cylinder assembly can be raised, lowered and rotated 180 degrees. The grooves (107 d) on the two limiting spacers (107) of the inverted shaft assembly are stuck in the flat-bottomed semicircular grooves (301a) of the two inverted shaft brackets (301) of the cylinder assembly.

2. The symmetrical automatic reverse winding mechanism for an optical fiber ring winding machine according to claim 1, characterized in that: The skeleton pressing plate (102) is a disc with a central hole and a vertical boss at the edge. A circular groove is provided near the central hole of the disc, so that the skeleton (104) can be embedded in the circular groove of the skeleton pressing plate (102) to fix the skeleton (104).

3. The symmetrical automatic reverse winding mechanism for an optical fiber ring winding machine according to claim 1, characterized in that: The skeleton shaft (101) is a hollow shaft, one end of which is provided with a knurled boss, the inner diameter of the skeleton shaft (101) is tightly matched with the outer diameter of the rotating shaft (105), and the outer diameter of the skeleton shaft (101) is tightly matched with the inner diameter of the skeleton pressing plate (102).

4. The symmetrical automatic reverse shaft winding mechanism for an optical fiber ring winding machine according to claim 1, characterized in that: The limiting spacer (107) is provided with bosses (107b) at both ends, an I-shaped sleeve having a central through hole (107a) therein, and a limiting groove (107d) with a rectangular opening that cooperates with the flat-bottomed semicircular groove (301a) of the inverted shaft bracket (301) is provided on the straight tube (107c) of the I-shaped sleeve.

5. The symmetrical automatic reverse winding mechanism for an optical fiber ring winding machine according to claim 1, characterized in that: The rotating shaft (105) is a T-shaped cylinder having a raised flange surface (105c) at one end and a thread (105e) at the other end. Positioning grooves (105a) are provided at the centers of the end surfaces at both ends of the rotating shaft (105).

6. The symmetrical automatic reverse winding mechanism for an optical fiber ring winding machine according to claim 1, characterized in that: The inverted shaft bracket (301) is an L-shaped bent sheet metal structure, a flat-bottomed semicircular groove (301a) is provided on the end surface of the long side of the sheet metal, and four oblong holes (301c) are provided on the short side of the sheet metal.

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