A fiber optic soldering device

Abstract

This utility model relates to the technical field of optical fiber soldering, and in particular to an optical fiber soldering device. The device inserts an optical fiber and a Kovar tube into a soldering mechanism, and fixes the optical fiber and Kovar tube using a limiting mechanism. Then, the soldering mechanism solders the optical fiber and Kovar tube. After soldering, an observation mechanism observes the soldering position of the optical fiber and Kovar tube, thereby improving the practicality of the device. The device includes a limiting mechanism, a soldering mechanism, and an observation mechanism, both mounted on the limiting mechanism. The limiting mechanism limits the optical fiber and Kovar tube, the soldering mechanism solders the optical fiber and Kovar tube, and the observation mechanism observes the optical fiber and Kovar tube in the soldering groove.

Description

Technical Field

[0001] This utility model relates to the technical field of optical fiber soldering, and in particular to an optical fiber soldering device. Background Technology

[0002] In the fabrication of grating sensors, to avoid uneven stress during direct laser welding of metallized optical fibers, the metallized optical fiber can be first fixed to a Kovar tube, and then the Kovar tube can be welded to a metal substrate. The metallized optical fiber and the Kovar tube can be fixed together using soldering.

[0003] Generally, a fiber optic soldering device is disclosed in a utility model patent with publication number CN218874036U to solder optical fibers to Kovar tubes. It mainly consists of a heating furnace and a positioning furnace. In use, the optical fiber is fixed by an optical fiber clamp. The clamping component for holding the workpiece is in close contact with the heating furnace, which not only ensures reliable clamping but also improves the heat conduction of the heating furnace and increases soldering efficiency. The heating furnace uses a heating rod for heat conduction, and the heating rate can be adjusted to ensure stable temperature rise and improve soldering quality. The optical fiber clamp is equipped with a pressure strip to fix the optical fiber without damaging it.

[0004] However, during use, it was found that the existing fiber optic soldering equipment has a slow soldering speed and is inconvenient to clean up the solder after a soldering error, resulting in poor practicality. Therefore, it is urgent to improve the existing fiber optic soldering equipment. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an optical fiber soldering device that inserts an optical fiber and a Kovar tube into a welding mechanism, fixes the optical fiber and the Kovar tube by a limiting mechanism, then welds the optical fiber and the Kovar tube by the welding mechanism, and observes the welding position of the optical fiber and the Kovar tube by an observation mechanism after welding is completed, thereby improving the practicality of the equipment.

[0006] This utility model discloses an optical fiber soldering device, which includes a limiting mechanism; it also includes a welding mechanism and an observation mechanism, both of which are mounted on the limiting mechanism.

[0007] The limiting mechanism limits the optical fiber and Kovar tube, the welding mechanism welds the optical fiber and Kovar tube, and the observation mechanism observes the optical fiber and Kovar tube in the weld groove.

[0008] The optical fiber and Kovar tube are inserted into the welding mechanism and fixed by the limiting mechanism. Then, the optical fiber and Kovar tube are welded by the welding mechanism. After the welding is completed, the welding position of the optical fiber and Kovar tube is observed by the observation mechanism, thereby improving the practicality of the equipment.

[0009] Preferably, the limiting mechanism includes a base, an optical fiber bottom mold, a first slide rod, an optical fiber top mold, a Kovar tube bottom mold, a second slide rod, and a Kovar tube top mold. The optical fiber bottom mold and the Kovar tube bottom mold are both installed on the top of the base. The optical fiber top mold is slidably installed on the top of the optical fiber bottom mold via the first slide rod, and the Kovar tube top mold is slidably installed on the Kovar tube bottom mold via the second slide rod. When the optical fiber is placed on the Kovar tube bottom mold, the Kovar tube top mold is pressed down to limit the optical fiber in conjunction with the Kovar tube bottom mold. When the Kovar tube is placed on the optical fiber bottom mold, the Kovar tube is limited by pressing down the optical fiber top mold.

[0010] Preferably, the welding mechanism includes a heating mechanism and a feeding mechanism. The feeding mechanism is mounted on the base, and the heating mechanism is mounted on the feeding mechanism. One end of the optical fiber and one end of the Kovar tube are both inserted into the feeding mechanism. The heating mechanism heats the tin to melt it. Then, the feeding mechanism conveys the tin to weld the optical fiber and the Kovar tube together.

[0011] Preferably, the discharge mechanism includes a limiting mold, an exhaust cylinder one, an exhaust cylinder two, an electric cylinder one, an electric cylinder two, a piston one, a piston two, an exhaust pipe one, an exhaust pipe two, and an electric control valve. The limiting mold is mounted on a base and has welding holes. Exhaust cylinder one and exhaust cylinder two are both mounted on the limiting mold. Electric cylinder one and electric cylinder two are respectively fixedly mounted on exhaust cylinder one and exhaust cylinder two. Piston one and piston two are respectively slidably mounted in exhaust cylinder one and exhaust cylinder two, and one end of electric cylinder one and electric cylinder two are respectively connected to piston one and piston two. One end of exhaust pipe two and exhaust pipe one are respectively mounted on exhaust cylinder one and exhaust cylinder two, and the other end of exhaust pipe two is connected to the limiting mold. The welding holes of the limiting mold are connected, and the other end of the exhaust pipe is connected to the interior of the heating mechanism through an electric control valve. The optical fiber and Kovar tube are inserted into the welding hole of the limiting mold. The electric cylinder extends, causing the piston to slide in the exhaust pipe. At the same time, the electric control valve opens, venting air into the heating mechanism and venting the molten tin in the heating mechanism into the welding hole of the limiting mold. Simultaneously, the electric cylinder retracts, causing the piston to slide in the exhaust pipe, venting the air in the welding hole through the exhaust pipe. Then, the excess tin in the welding hole enters the exhaust pipe, and through the air flow, the tin at the connection between the optical fiber and the Kovar tube cools and solidifies rapidly, completing the welding of the optical fiber and the Kovar tube.

[0012] Preferably, the heating mechanism includes a heating tube and a sealing valve. The heating tube is installed on the limiting mold, and the bottom of the heating tube communicates with the welding hole of the limiting mold. The electrically controlled valve communicates with the interior of the heating tube, and the sealing valve is installed on the top of the heating tube. The solder wire is inserted into the heating tube, and the sealing valve is closed. The solder wire is heated by the heating tube to melt the solder.

[0013] Preferably, the observation mechanism includes a support and a microscope. The top of the optical fiber top mold is provided with an observation window, and the microscope is mounted on the base via the support. After welding, the weld joint between the optical fiber and the Kovar tube is placed on the top of the optical fiber bottom mold. The operator uses the microscope to observe the weld joint between the optical fiber and the Kovar tube to determine whether the welding is qualified.

[0014] Preferably, the bottom of the limiting mold is provided with a limiting post, the bottom of the limiting post is provided with a permanent magnet, and the base is provided with a limiting hole; the limiting post is inserted into the limiting hole on the base, so that the permanent magnet is attracted to the limiting hole of the base, thereby limiting the limiting mold.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: the optical fiber and Kovar tube are inserted into the welding mechanism and fixed by the limiting mechanism. Then, the optical fiber and Kovar tube are welded by the welding mechanism. After the welding is completed, the welding position of the optical fiber and Kovar tube is observed by the observation mechanism, thereby improving the practicality of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0017] Figure 2 This is a first axonometric schematic diagram of the welding mechanism and observation mechanism of this utility model;

[0018] Figure 3 This is a second isometric structural diagram of the welding mechanism and observation mechanism of this utility model;

[0019] Figure 4 This is a third axonometric schematic diagram of the welding mechanism and observation mechanism of this utility model;

[0020] Figure 5 This is a schematic diagram of the left-side cross-sectional structure of the welding mechanism of this utility model.

[0021] The following are labeled in the attached diagram: 1. Base; 2. Fiber optic bottom mold; 3. Slide rod one; 4. Fiber optic top mold; 5. Kovar tube bottom mold; 6. Slide rod two; 7. Kovar tube top mold; 8. Limiting mold; 9. Exhaust pipe one; 10. Exhaust pipe two; 11. Electric cylinder one; 12. Electric cylinder two; 13. Piston one; 14. Piston two; 15. Exhaust pipe one; 16. Exhaust pipe two; 17. Electrically controlled valve; 18. Heating tube; 19. Sealing valve; 20. Support; 21. Microscope; 22. Limiting post; 23. Permanent magnet block. Detailed Implementation

[0022] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0023] Example 1

[0024] like Figures 1 to 5 As shown, an optical fiber soldering device includes a limiting mechanism; it also includes a soldering mechanism and an observation mechanism, both of which are mounted on the limiting mechanism.

[0025] The limiting mechanism limits the optical fiber and Kovar tube, the welding mechanism welds the optical fiber and Kovar tube, and the observation mechanism observes the optical fiber and Kovar tube in the weld groove.

[0026] The limiting mechanism includes a base 1, an optical fiber bottom mold 2, a slide bar 1 3, an optical fiber top mold 4, a Kovar tube bottom mold 5, a slide bar 2 6, and a Kovar tube top mold 7. The optical fiber bottom mold 2 and the Kovar tube bottom mold 5 are both installed on the top of the base 1. The optical fiber top mold 4 is slidably installed on the top of the optical fiber bottom mold 2 via the slide bar 1 3, and the Kovar tube top mold 7 is slidably installed on the Kovar tube bottom mold 5 via the slide bar 2 6.

[0027] The welding mechanism includes a heating mechanism and a discharge mechanism. The discharge mechanism is mounted on the base 1, and the heating mechanism is mounted on the discharge mechanism.

[0028] The discharge mechanism includes a limiting mold 8, an exhaust pipe 1 9, an exhaust pipe 2 10, an electric cylinder 1 11, an electric cylinder 2 12, a piston 1 13, a piston 2 14, an exhaust pipe 1 15, an exhaust pipe 2 16, and an electric control valve 17. The limiting mold 8 is mounted on the base 1 and has welding holes. The exhaust pipe 1 9 and the exhaust pipe 2 10 are both mounted on the limiting mold 8. The electric cylinder 1 11 and the electric cylinder 2 12 are respectively fixedly mounted on the exhaust pipe 1 9 and the exhaust pipe 2 10. Piston 13 and piston 2 14 are slidably installed in exhaust pipe 1 9 and exhaust pipe 2 10 respectively, and one end of electric cylinder 11 and electric cylinder 2 12 are connected to piston 13 and piston 2 14 respectively. One end of exhaust pipe 2 16 and exhaust pipe 15 are installed on exhaust pipe 1 9 and exhaust pipe 2 10 respectively. The other end of exhaust pipe 2 16 is connected to the welding hole of the limiting mold 8. The other end of exhaust pipe 15 is connected to the interior of the heating mechanism through electric control valve 17.

[0029] The heating mechanism includes a heating tube 18 and a sealing valve 19. The heating tube 18 is installed on the limiting mold 8, and the bottom of the heating tube 18 is connected to the welding hole of the limiting mold 8. The electric control valve 17 is connected to the inside of the heating tube 18, and the sealing valve 19 is installed on the top of the heating tube 18.

[0030] The bottom of the limiting mold 8 is provided with a limiting post 22, the bottom of the limiting post 22 is provided with a permanent magnet block 23, and the base 1 is provided with a limiting hole.

[0031] Insert the optical fiber and Kovar tube into the welding hole of the limiting mold 8, aligning the optical fiber with the Kovar tube. Then, place the optical fiber on the bottom mold 5 of the Kovar tube. By pressing down the top mold 7 of the Kovar tube, the top mold 7 and the bottom mold 5 of the Kovar tube are used to limit the optical fiber. Place the Kovar tube on the bottom mold 2 of the optical fiber, and press down the top mold 4 of the optical fiber to limit the Kovar tube. Then, insert the solder wire into the heating tube 18 and close the sealing valve 19. The heating tube 18 heats the solder wire, melting it. The electric cylinder 11 extends, causing the piston 13 to slide in the exhaust pipe 9. At the same time, the electric control valve 17 opens, venting air into the heating tube 18 and discharging the molten solder in the heating tube 18 into the welding hole of the limiting mold 8. The retraction of cylinder 12 causes piston 14 to slide in exhaust pipe 10, expelling air from the welding hole through exhaust pipe 16. Excess solder in the welding hole then enters exhaust pipe 16, and the airflow rapidly cools and solidifies the solder at the connection between the optical fiber and Kovar tube, completing the welding of the optical fiber and Kovar tube. Kovar tube is then pulled to the right, pulling Kovar tube and optical fiber out of the limiting mold 8. If the welding is found to be unqualified, the welded joint of the optical fiber and Kovar tube is reinserted into the limiting mold 8 and continuously heated by heating tube 18. The extension of electric cylinder 11 causes piston 13 to slide in exhaust pipe 9, expelling the hot air in heating tube 18 into the limiting mold 8, remelting the solder, and then re-welding, thereby improving the practicality of the equipment.

[0032] Example 2

[0033] An optical fiber soldering device includes a limiting mechanism; it also includes a welding mechanism and an observation mechanism, both of which are mounted on the limiting mechanism.

[0034] The limiting mechanism limits the optical fiber and Kovar tube, the welding mechanism welds the optical fiber and Kovar tube, and the observation mechanism observes the optical fiber and Kovar tube in the weld groove.

[0035] The limiting mechanism includes a base 1, an optical fiber bottom mold 2, a slide bar 1 3, an optical fiber top mold 4, a Kovar tube bottom mold 5, a slide bar 2 6, and a Kovar tube top mold 7. The optical fiber bottom mold 2 and the Kovar tube bottom mold 5 are both installed on the top of the base 1. The optical fiber top mold 4 is slidably installed on the top of the optical fiber bottom mold 2 via the slide bar 1 3, and the Kovar tube top mold 7 is slidably installed on the Kovar tube bottom mold 5 via the slide bar 2 6.

[0036] The welding mechanism includes a heating mechanism and a discharge mechanism. The discharge mechanism is mounted on the base 1, and the heating mechanism is mounted on the discharge mechanism.

[0037] The discharge mechanism includes a limiting mold 8, an exhaust pipe 1 9, an exhaust pipe 2 10, an electric cylinder 1 11, an electric cylinder 2 12, a piston 1 13, a piston 2 14, an exhaust pipe 1 15, an exhaust pipe 2 16, and an electric control valve 17. The limiting mold 8 is mounted on the base 1 and has welding holes. The exhaust pipe 1 9 and the exhaust pipe 2 10 are both mounted on the limiting mold 8. The electric cylinder 1 11 and the electric cylinder 2 12 are respectively fixedly mounted on the exhaust pipe 1 9 and the exhaust pipe 2 10. Piston 13 and piston 2 14 are slidably installed in exhaust pipe 1 9 and exhaust pipe 2 10 respectively, and one end of electric cylinder 11 and electric cylinder 2 12 are connected to piston 13 and piston 2 14 respectively. One end of exhaust pipe 2 16 and exhaust pipe 15 are installed on exhaust pipe 1 9 and exhaust pipe 2 10 respectively. The other end of exhaust pipe 2 16 is connected to the welding hole of the limiting mold 8. The other end of exhaust pipe 15 is connected to the interior of the heating mechanism through electric control valve 17.

[0038] The heating mechanism includes a heating tube 18 and a sealing valve 19. The heating tube 18 is installed on the limiting mold 8, and the bottom of the heating tube 18 is connected to the welding hole of the limiting mold 8. The electric control valve 17 is connected to the inside of the heating tube 18, and the sealing valve 19 is installed on the top of the heating tube 18.

[0039] The observation mechanism includes a support 20 and a microscope 21. The top of the optical fiber top mold 4 is provided with an observation window, and the microscope 21 is mounted on the base 1 through the support 20.

[0040] The bottom of the limiting mold 8 is provided with a limiting post 22, the bottom of the limiting post 22 is provided with a permanent magnet block 23, and the base 1 is provided with a limiting hole.

[0041] Insert the optical fiber and Kovar tube into the welding hole of the limiting mold 8, aligning the optical fiber with the Kovar tube. Then, place the optical fiber on the bottom mold 5 of the Kovar tube. By pressing down the top mold 7 of the Kovar tube, the top mold 7 and the bottom mold 5 of the Kovar tube are used to limit the optical fiber. Place the Kovar tube on the bottom mold 2 of the optical fiber, and press down the top mold 4 of the optical fiber to limit the Kovar tube. Then, insert the solder wire into the heating tube 18 and close the sealing valve 19. The heating tube 18 heats the solder wire, melting the solder. The electric cylinder 11 extends, causing the piston 13 to slide in the exhaust pipe 9. At the same time, the electric control valve 17 opens, venting air into the heating tube 18 and discharging the molten solder in the heating tube 18 into the welding hole of the limiting mold 8. Simultaneously, the electric cylinder 12 retracts, causing the piston 14 to slide in the exhaust pipe 9. The device slides through the vent pipe 16 to expel air from the welding hole, allowing excess solder to enter the vent pipe 16. The airflow then rapidly cools and solidifies the solder at the connection between the optical fiber and the Kovar tube, completing the welding process. The Kovar tube is then pulled to the right, placing the welded joint between the optical fiber and the Kovar tube on top of the bottom mold 2. The operator uses a microscope 21 to observe the welded joint to determine if it is qualified. The welded joint is then reinserted into the limiting mold 8 and continuously heated by the heating pipe 18. The extension of the electric cylinder 11 causes the piston 13 to slide in the vent pipe 9, expelling the hot air from the heating pipe 18 into the limiting mold 8, remelting the solder, and then re-welding, thereby improving the practicality of the equipment.

[0042] The left side of the welding hole of the limiting mold 8 corresponds to the size of the optical fiber, and the right side of the welding hole of the limiting mold 8 corresponds to the size of the Kovar tube. The electric cylinder 11, electric cylinder 12, heating tube 18 and microscope 21 of the optical fiber soldering device of this utility model are purchased from the market. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without the need for technical personnel in this field to make creative efforts.

[0043] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An optical fiber soldering device, comprising a limiting mechanism; characterized in that, It also includes a welding mechanism and an observation mechanism, both of which are mounted on the limiting mechanism; The limiting mechanism limits the optical fiber and Kovar tube, the welding mechanism welds the optical fiber and Kovar tube, and the observation mechanism observes the optical fiber and Kovar tube in the weld groove.

2. A fiber optic splicing apparatus as claimed in claim 1, wherein, The limiting mechanism includes a base (1), an optical fiber bottom mold (2), a slide bar one (3), an optical fiber top mold (4), a Kovar tube bottom mold (5), a slide bar two (6), and a Kovar tube top mold (7). The optical fiber bottom mold (2) and the Kovar tube bottom mold (5) are both installed on the top of the base (1). The optical fiber top mold (4) is slidably installed on the top of the optical fiber bottom mold (2) via the slide bar one (3). The Kovar tube top mold (7) is slidably installed on the Kovar tube bottom mold (5) via the slide bar two (6).

3. The optical fiber soldering device as described in claim 2, characterized in that, The welding mechanism includes a heating mechanism and a discharge mechanism. The discharge mechanism is installed on the base (1), and the heating mechanism is installed on the discharge mechanism.

4. The optical fiber soldering device as described in claim 3, characterized in that, The discharge mechanism includes a limiting mold (8), an exhaust cylinder one (9), an exhaust cylinder two (10), an electric cylinder one (11), an electric cylinder two (12), a piston one (13), a piston two (14), an exhaust pipe one (15), an exhaust pipe two (16), and an electric control valve (17). The limiting mold (8) is mounted on the base (1), and the limiting mold (8) is provided with welding holes. The exhaust cylinder one (9) and the exhaust cylinder two (10) are both mounted on the limiting mold (8). The electric cylinder one (11) and the electric cylinder two (12) are respectively fixedly mounted on the exhaust cylinder one (9) and the exhaust cylinder two (10). On 10), piston one (13) and piston two (14) are slidably installed in exhaust pipe one (9) and exhaust pipe two (10) respectively, and one end of electric cylinder one (11) and electric cylinder two (12) are connected to piston one (13) and piston two (14) respectively. One end of exhaust pipe two (16) and exhaust pipe one (15) are installed on exhaust pipe one (9) and exhaust pipe two (10) respectively. The other end of exhaust pipe two (16) is connected to the welding hole of the limiting mold (8), and the other end of exhaust pipe one (15) is connected to the interior of the heating mechanism through the electric control valve (17).

5. The optical fiber soldering apparatus as described in claim 4, characterized in that, The heating mechanism includes a heating tube (18) and a sealing valve (19). The heating tube (18) is installed on the limiting mold (8), and the bottom of the heating tube (18) is connected to the welding hole of the limiting mold (8). The electric control valve (17) is connected to the inside of the heating tube (18), and the sealing valve (19) is installed on the top of the heating tube (18).

6. The optical fiber soldering apparatus as described in claim 2, characterized in that, The observation mechanism includes a support (20) and a microscope (21). The top of the optical fiber top mold (4) is provided with an observation window, and the microscope (21) is mounted on the base (1) through the support (20).

7. The optical fiber soldering apparatus as described in claim 4, characterized in that, The bottom of the limiting mold (8) is provided with a limiting post (22), the bottom of the limiting post (22) is provided with a permanent magnet block (23), and the base (1) is provided with a limiting hole.

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