Fiber taper device

Abstract

The invention discloses an optical fiber taper device, comprising a bottom plate, a lifting transmission mechanism, a rib plate, a lifting drive motor, an upper protective tube, an air pipe joint, a buckle, a lower protective tube, a buckle fitting, a bracket, a transmission motor, an upper transmission rod, a lower transmission rod, a transmission mechanism, and an XY axis adjustment platform; the lifting transmission mechanism is vertically arranged on the bottom plate, two sides of the rib plate are respectively fixed to the bottom plate and the lifting transmission mechanism, the lifting drive motor is used to drive the lifting movement of the lifting transmission mechanism, the bracket is arranged on the lifting transmission mechanism, and performs lifting movement with the lifting transmission mechanism; the upper protective tube is arranged on the bracket, and an air pipe joint is arranged at one end of the upper protective tube, and by arranging the air pipe joint on the upper protective tube, a vacuum can be drawn when the optical fiber bundle is melted, so that bubbles inside during melting can be reduced and the yield rate can be improved.

Description

Technical Field

[0001] The invention relates to the field of optical fiber device manufacturing, and in particular to an optical fiber taper device. Background Art

[0002] With the development of optical communication technology, optical combiner devices and high-power laser devices are increasingly used. The function of these devices is to combine multiple wavelength signals into one signal for transmission or to combine multiple low-power pump lasers into one high-power laser. Among them, high-power pump laser combiners are the key and core components of high-power fiber lasers.

[0003] The fused taper manufacturing process is a common method for making fiber lasers such as fiber couplers. The basic process is: two (or more) single-mode (or multi-mode) optical fibers with the coating removed are brought together in a certain way, heated and melted at high temperature, and stretched to both sides at the same time to form a bidirectional cone structure to achieve the manufacturing of optical fiber devices. The equipment used for the fused taper manufacturing of optical fiber devices is a fused taper machine. The traditional manufacturing process currently uses a horizontal fused taper machine, but it has the following disadvantages: During the horizontal fused taper machine's horizontal taper process, the optical fiber bundle becomes soft when it melts, and will form a crooked drip head under the influence of gravity. Summary of the invention

[0004] The object of the present invention is to provide an optical fiber taper device, which can reduce internal bubbles during melting and improve the yield.

[0005] In order to solve the above technical problems, the embodiments of the present invention provide an optical fiber taper device, including a bottom plate, a lifting transmission mechanism, a rib plate, a lifting drive motor, an upper protective tube, an air pipe joint, a buckle, a lower protective tube, a buckle fitting, a bracket, a transmission motor, an upper transmission rod, a lower transmission rod, a transmission mechanism, and an XY axis adjustment platform;

[0006] The lifting transmission mechanism is vertically arranged on the bottom plate, the two sides of the rib plate are respectively fixed to the bottom plate and the lifting transmission mechanism, the lifting drive motor is used to drive the lifting movement of the lifting transmission mechanism, the bracket is arranged on the lifting transmission mechanism, and performs lifting movement with the lifting transmission mechanism;

[0007] The upper protective tube is arranged on the bracket, one end of the upper protective tube is provided with a trachea joint, and the other end of the upper protective tube is provided with a press buckle;

[0008] The transmission motor is fixedly arranged on the bracket, the upper transmission rod rotates under the driving of the transmission motor, the upper transmission rod is transmission-connected with the lower transmission rod, and the lower transmission rod is transmission-connected with the transmission mechanism;

[0009] The position of the lower protective tube corresponds to that of the upper protective tube, and a buckle fitting is arranged at one end of the lower protective tube close to the upper protective tube, and the lower protective tube is connected to the transmission mechanism; the lower protective tube is arranged on the XY axis adjustment platform.

[0010] In addition, the lifting transmission mechanism is composed of a slide rail and a lead screw.

[0011] In addition, a protrusion is arranged at the end of the upper transmission rod, and a groove is arranged at the end of the lower transmission rod, and the position and shape of the protrusion correspond to those of the groove.

[0012] In addition, the transmission mechanism includes a chain and two sprockets. The chain is sleeved on the two sprockets and meshes with the two sprockets. The lower transmission rod and the lower protective tube are respectively fixed on the two sprockets.

[0013] In addition, the optical fiber taper device also includes a lifting drive motor bracket, a bracket back plate and a bracket rib plate. The lifting drive motor bracket is provided with a lifting drive motor. The bracket back plate is fixed on the lifting transmission mechanism and connected to the lifting drive motor bracket. The two sides of the bracket rib plate are respectively fixed to the lifting drive motor bracket and the bracket back plate.

[0014] In addition, the air pipe joint is fixed on the upper protective pipe through a fixed air path joint.

[0015] In addition, the bracket includes a platform upright plate, a platform bottom plate fixedly mounted on the platform upright plate, and a bracket rib plate. The two sides of the bracket rib plate are respectively fixed to the platform upright plate and the platform bottom plate. The platform bottom plate is fixed to the lifting transmission mechanism, and the upper protective pipe and the transmission motor are fixed to the platform upright plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of an optical fiber taper device in an embodiment of the present invention. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the present invention clearer, the following will be described in detail with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that in the various embodiments of the present invention, many technical details are provided in order to enable the reader to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical scheme claimed in the present application can be implemented.

[0018] The embodiment of the present invention relates to an optical fiber taper device, such as Figure 1As shown, the optical fiber taper device includes a base plate 1, a rib plate 2, a lower protective tube 3, a buckle 4, a lifting transmission mechanism 5, an upper protective tube 6, an air pipe joint 7, a transmission motor 8, a platform vertical plate 9, a thrust self-aligning bearing seat 10, an upper transmission rod 11, a lower transmission rod 12, a drive shaft bearing seat 13, a platform base plate 14, an XY axis adjustment platform 15, a lower end ball bearing seat 16, a coupling 17, a lifting drive motor 18, a lower end bearing seat fixing plate 19, a bracket rib plate 20, two sprockets 21, a chain 22, a deep groove ball bearing 23, an axial fixing ring 24, a fixed air path joint 25, a transmission bracket rib plate 26, a bracket back plate 27, a lifting drive motor bracket 28, a buckle accessory 29, a thrust self-aligning bearing 30, and a reinforcement plate 31.

[0019] Specifically, the lifting transmission mechanism 5 is composed of a slide rail and a lead screw. The lifting transmission mechanism 5 is vertically arranged on the base plate 1. The two sides of the rib plate 2 are respectively fixed to the base plate 1 and the lifting transmission mechanism 5. The lifting drive motor 18 is used to drive the lifting movement of the lifting transmission mechanism 5. Specifically, the lifting drive motor 18 is connected to the lifting transmission mechanism 5 through a coupling 17. The bracket is arranged on the lifting transmission mechanism 5 and performs lifting movement with the lifting transmission mechanism 5; the bracket includes a platform vertical plate 9, a platform bottom plate 14 fixedly installed with the platform vertical plate 9, and a bracket rib plate 20. The two sides of the bracket rib plate 20 are respectively fixed to the platform vertical plate 9 and the platform bottom plate 14. The platform bottom plate 14 is fixed to the lifting transmission mechanism 5. The upper protective tube 6 is arranged on the bracket. Specifically, the upper protective tube 6 and the transmission motor 8 are fixed on the platform vertical plate 9. One end of the upper protective tube 6 is provided with an air pipe joint 7 for vacuuming, and the air pipe joint 7 is fixed to the upper protective tube 6 through a fixed air path joint 25. The other end of the upper protective tube 6 is provided with a buckle 4. By providing the air pipe joint 7 on the upper protective tube 6, vacuuming can be performed when the optical fiber bundle is melted, which can reduce the bubbles inside during melting and improve the yield rate. The machine allows the optical fiber bundle to be melted in an upright state, which can solve a drawback of the traditional horizontal melting taper machine: when the optical fiber bundle melts, it becomes soft and forms a crooked drip head under the influence of gravity.

[0020] It should be noted that a thrust self-aligning bearing 30 is fixedly arranged on the upper protective tube 6 , and the thrust self-aligning bearing 30 is installed on the thrust self-aligning bearing seat 10 , wherein an axial fixing ring 24 adapted to the thrust self-aligning bearing 30 is also sleeved on the upper protective tube 6 .

[0021] Furthermore, the transmission motor 8 is fixedly arranged on the bracket, and the upper transmission rod 11 rotates under the drive of the transmission motor 8, the upper transmission rod 11 is transmission-connected with the lower transmission rod 12, and the lower transmission rod 11 is transmission-connected with the transmission mechanism; specifically, the transmission mechanism includes a chain 22 and two sprockets 21, the chain 22 is sleeved on the two sprockets 21, and meshes with the two sprockets 21; the lower transmission rod 12 and the lower protective tube 3 are respectively fixed on the two sprockets 21, wherein the sprocket 21 installed on the lower transmission rod 12 is installed with a deep groove ball bearing 23, and a drive shaft bearing seat 13 for installing the deep groove ball bearing 23, and the sprocket 21 installed on the lower protective tube 3 is installed on the lower end ball bearing seat 16, and the lower end ball bearing seat 16 is fixedly installed on the lower end bearing seat fixing plate 19.

[0022] It is worth noting that the position of the lower protective tube 3 corresponds to that of the upper protective tube 6 , and a buckle fitting 29 is provided at one end of the lower protective tube 3 close to the upper protective tube 6 , and the buckle fitting 29 and the buckle 4 are used together to install the optical fiber bundle.

[0023] And the lower protective tube 3 is connected to the transmission mechanism; the lower protective tube 3 is arranged on the XY axis adjustment platform 15, specifically, the lower end bearing seat fixing plate 19 is fixed on the XY axis adjustment platform 15, the XY axis adjustment platform 15 is fixed on the reinforcement plate 31, and the reinforcement plate 31 is fixed on the base plate 1.

[0024] As a preferred embodiment, a protrusion is provided at the end of the upper transmission rod 11, and a groove is provided at the end of the lower transmission rod 12. The position and shape of the protrusion correspond to the groove, so that the platform vertical plate 9 can be normally raised and lowered and moved up and down when the upper transmission rod 11 and the lower transmission rod 12 rotate.

[0025] Specifically, the optical fiber taper device also includes a lifting drive motor bracket 28, a bracket back plate 27 and a bracket rib 26. The lifting drive motor bracket 28 is provided with a lifting drive motor 18. The bracket back plate 27 is fixed on the lifting transmission mechanism 5 and connected to the lifting drive motor bracket 28. The two sides of the bracket rib 26 are respectively fixed to the lifting drive motor bracket 28 and the bracket back plate 27.

[0026] It should be noted that when the optical fiber taper device is working, the transmission motor 8 transmits power to the upper transmission rod 11, and the upper transmission rod 11 transmits power to the upper protective tube 6 through the chain 22 on one side, and transmits power to the lower transmission rod 12 through the groove on the other side, and the lower transmission rod 12 transmits power to the lower protective tube 3 through the chain 22. The lower end ball bearing seat 16 is installed on an XY axis adjustment platform 15, so that the upper and lower protective tubes can be adjusted to be concentric, and the upper and lower concentricity can ensure constant speed. When in use, the spacing between the upper and lower protective tubes is adjusted to about 30mm, the buckles of the upper and lower protective tubes lock the optical fiber bundle, the transmission motor 8 rotates at a constant speed, the hydrogen-oxygen gun sprays flames evenly, and melting begins; after melting is completed, the platform is lowered and raised about 50mm without stopping the rotation of the motor, and the taper is completed.

[0027] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present invention, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present invention.

Claims

1. An optical fiber taper device, characterized in that: It includes a bottom plate, a lifting transmission mechanism, a rib plate, a lifting drive motor, an upper protective tube, an air pipe joint, a buckle, a lower protective tube, buckle accessories, a bracket, a transmission motor, an upper transmission rod, a lower transmission rod, a transmission mechanism, and an XY axis adjustment platform; the lifting transmission mechanism is vertically arranged on the bottom plate, the two sides of the rib plate are respectively fixed to the bottom plate and the lifting transmission mechanism, the lifting drive motor is used to drive the lifting movement of the lifting transmission mechanism, and the bracket is arranged on the lifting transmission mechanism and performs lifting movement with the lifting transmission mechanism; The upper protective tube is arranged on the bracket, one end of the upper protective tube is provided with the trachea joint, and the other end of the upper protective tube is provided with the pressing buckle; The transmission motor is fixedly arranged on the bracket, the upper transmission rod rotates under the driving of the transmission motor, the upper transmission rod is transmission-connected with the lower transmission rod, and the lower transmission rod is transmission-connected with the transmission mechanism; The position of the lower protective tube corresponds to the position of the upper protective tube, and the buckle fitting is provided at one end of the lower protective tube close to the upper protective tube, and the lower protective tube is connected to the transmission mechanism; the lower protective tube is arranged on the XY axis adjustment platform, the lifting transmission mechanism is composed of a slide rail and a lead screw, the transmission mechanism includes a chain and two sprockets, the chain is sleeved on the two sprockets and meshed with the two sprockets; the lower transmission rod and the lower protective tube are respectively fixed on the two sprockets.

2. The optical fiber taper device according to claim 1, characterized in that: A protrusion is arranged at the end of the upper transmission rod, and a groove is arranged at the end of the lower transmission rod. The protrusion corresponds to the groove in position and shape.

3. The optical fiber taper device according to claim 1, characterized in that: The optical fiber taper device also includes a lifting drive motor bracket, a bracket back plate and a bracket rib plate. The lifting drive motor bracket is provided with a lifting drive motor. The bracket back plate is fixed on the lifting transmission mechanism and connected to the lifting drive motor bracket. The two sides of the bracket rib plate are respectively fixed to the lifting drive motor bracket and the bracket back plate.

4. The optical fiber taper device according to claim 1, characterized in that: The air pipe joint is fixed on the upper protective tube through a fixed air path joint.

5. The optical fiber taper device according to any one of claims 1 to 4, characterized in that: The bracket includes a platform upright plate, a platform bottom plate fixedly mounted on the platform upright plate, and a bracket rib plate. The two sides of the bracket rib plate are respectively fixed to the platform upright plate and the platform bottom plate. The platform bottom plate is fixed to the lifting transmission mechanism. The upper protective tube and the transmission motor are fixed to the platform upright plate.

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