Visual inspection device for automatic fusion splicing of optical fibers

Abstract

The utility model discloses a visual inspection device used for automatic optical fiber welding, which relates to the technical field of optical fiber welding visual inspection and comprises a laser welding head used for welding optical fibers, and the side face of the laser welding head is fixedly connected with an isolation shell. A mounting support is mounted on the side, away from the laser welding head, of the isolation shell, and a sliding driver and a swing type visual detector are arranged on the two sides of the mounting support respectively. Wherein the swing type visual detector comprises a connecting shaft movably connected with the mounting bracket, and two ends of the connecting shaft are respectively provided with a sliding block and a connecting gear; according to the utility model, as the connecting shaft and the sliding block are rotationally matched through the bearing, and the connecting gear is meshed with the fixed rack at the rear part, when the sliding block drives the connecting gear to move up and down, the connecting gear also rotates, so as to drive the part fixed on the side surface to turn over; the swing type visual detector can be prevented from being damaged by strong light generated in the welding process.

Description

Technical Field

[0001] This utility model specifically relates to the field of optical fiber fusion splicing visual inspection technology, and more specifically to a visual inspection device for automatic optical fiber fusion splicing. Background Technology

[0002] Automated fiber optic fusion splicing is a technology used to connect two optical fibers. It utilizes a specialized fusion splicer to automatically align and splice the fibers. Automated fusion splicing uses the high temperature generated by a high-voltage arc discharge to melt and connect the end faces of the two fibers. During the splicing process, the fusion splicer uses a high-precision optical imaging system and sensors to precisely align the fiber axes, ensuring accurate alignment of the fiber cores to achieve low-loss optical signal transmission.

[0003] However, in practice, it has been noted that while cameras are typically positioned on the side of the laser welding joint, with the lens aimed at the welding location, the intense light generated during the laser welding process can cause photochemical reactions in the lens's optical materials. This can alter the molecular structure of the optical glass or cause the coating material to decompose or deteriorate, thereby reducing the lens's light transmittance, increasing scattering and absorption, and affecting image clarity and color reproduction. Furthermore, high-energy lasers can also cause tiny pits or cracks on the lens surface. These defects scatter light, further deteriorating the imaging effect and making the lens prone to damage, requiring frequent replacement. Utility Model Content

[0004] The purpose of this invention is to provide a visual inspection device for automatic fiber optic splicing. A structure is designed between the laser splice joint and the industrial camera to move the industrial lens. Before welding, the orientation of the industrial camera is adjusted to prevent damage from strong light, thus protecting the industrial camera and extending its service life. This addresses the technical problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A visual inspection device for automatic fiber optic splicing includes a laser splice for splicing optical fibers, an isolation shell fixedly connected to the side of the laser splice, and a mounting bracket installed on the side of the isolation shell away from the laser splice. A sliding driver and a swing-type visual detector are respectively provided on both sides of the mounting bracket.

[0007] The swing-type vision detector includes a connecting shaft that is movably connected to the mounting bracket. The two ends of the connecting shaft are respectively provided with a slider and a connecting gear. One end of the connecting shaft is rotatably engaged with the slider through a bearing, and the other end is fixedly connected to an industrial camera through the connecting gear.

[0008] As a further technical solution of this utility model, the mounting bracket includes a limiting horizontal plate arranged parallel to the isolation shell, and a vertical limiting partition is integrally provided on the side of the limiting horizontal plate away from the isolation shell, and a limiting groove is provided in the limiting partition.

[0009] As a further technical solution of this utility model, the connecting shaft slides through the limiting groove and is slidably engaged with the limiting groove, while the connecting gear and the slider are located on both sides of the limiting partition. A fixed rack is embedded on the side of the limiting horizontal plate near the connecting gear, and the connecting gear and the fixed rack mesh with each other.

[0010] As a further technical solution of this utility model, both ends of the limiting horizontal plate are fixedly connected to end baffles, and the sliding driver has a threaded screw that is movably connected to the two end baffles. The end of the threaded screw passes through the end baffle and is connected to a drive motor, and the drive motor is fixedly connected to the end baffle.

[0011] As a further technical solution of this utility model, parallel limiting slide bars are provided on both sides of the threaded screw, and both ends of the limiting slide bars are fixedly connected to the end baffle. The threaded screw and the limiting slide bars respectively pass through the slider.

[0012] As a further technical solution of this utility model, the slider is provided with a threaded hole corresponding to the threaded screw, and the threaded screw and the threaded hole are threadedly engaged. Limiting holes corresponding to the limiting slide rod are also provided on both sides of the slider, and the limiting slide rod is slidably connected to the limiting hole.

[0013] As a further technical solution of this utility model, the limiting cross plate is integrally provided with an end baffle on the side near the isolation shell, and the other end of the isolation shell is fixedly connected to the isolation shell by bolts. The laser heat sink penetrating the isolation shell is also fixedly connected to both sides of the laser fusion joint.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In this utility model, a drive motor drives a threaded screw to rotate. Through the threaded engagement between the threaded screw and the threaded hole on the slider, the slider moves up and down. The limiting hole on the slider slides in engagement with the limiting slide rod, thereby restricting the slider. This allows the slider to move the industrial camera up and down, adjusting the detection position of the industrial camera.

[0016] 2. In this utility model, the slider drives the connecting gear to slide up and down through the connecting shaft. Since the connecting shaft and the slider are rotated and engaged by the bearing, and the connecting gear meshes with the fixed rack behind, when the slider drives the connecting gear to move up and down, the connecting gear will also rotate, thereby causing the fixed side to flip. This can prevent the strong light during welding from damaging the oscillating vision detector. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model in use.

[0018] Figure 2 This utility model Figure 1 Another perspective view.

[0019] Figure 3 This utility model Figure 2 A magnified view of a portion of the image.

[0020] Figure 4 This utility model Figure 2 A partial structural diagram.

[0021] Figure 5 This utility model Figure 4 Another perspective view.

[0022] Figure 6 This is a three-dimensional structural diagram of the mounting bracket in this utility model.

[0023] Figure 7 This utility model Figure 6 Another perspective view.

[0024] Figure 8 This is a three-dimensional structural diagram of the swing-type visual detector in this utility model.

[0025] In the picture:

[0026] Isolation housing-1, laser weld joint-2, laser heat sink-3, mounting bracket-4, limiting cross plate-41, limiting partition-42, end baffle-43, connecting bracket-44, limiting slide groove-45, fixed rack-46, sliding driver-5, threaded screw-51, limiting slide bar-52, drive motor-53, oscillating vision detector-6, slider-61, connecting gear-62, industrial camera-63, connecting shaft-64, threaded hole-65, limiting hole-66. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-8 This utility model provides a visual inspection device for automatic fiber optic splicing, including a laser splice 2 for fiber optic splicing, an isolation shell 1 fixedly connected to the side of the laser splice 2, and a mounting bracket 4 installed on the side of the isolation shell 1 away from the laser splice 2. A sliding driver 5 and a swing-type visual detector 6 are respectively provided on both sides of the mounting bracket 4.

[0029] The swing-type vision detector 6 includes a connecting shaft 64 that is movably connected to the mounting bracket 4. The two ends of the connecting shaft 64 are respectively provided with a slider 61 and a connecting gear 62. One end of the connecting shaft 64 is rotatably connected to the slider 61 through a bearing, and the other end is fixedly connected to the industrial camera 63 through the connecting gear 62.

[0030] Furthermore, the mounting bracket 4 includes a limiting horizontal plate 41 arranged parallel to the isolation shell 1, and a vertical limiting partition 42 is integrally provided on the side of the limiting horizontal plate 41 away from the isolation shell 1, and a limiting groove 45 is provided in the limiting partition 42.

[0031] More specifically, the connecting shaft 64 passes through the limiting slide groove 45 and slides in cooperation with the limiting slide groove 45, while the connecting gear 62 and the slider 61 are located on both sides of the limiting partition 42, and a fixed rack 46 is embedded in the side of the limiting horizontal plate 41 near the connecting gear 62, and the connecting gear 62 and the fixed rack 46 mesh with each other.

[0032] By adopting the above technical solution, the slider 61 drives the connecting gear 62 to slide up and down through the connecting shaft 64. Since the connecting shaft 64 and the slider 61 are rotated through the bearing, and the connecting gear 62 meshes with the fixed rack 46 behind, when the slider 61 drives the connecting gear 62 to move up and down, the connecting gear 62 will also rotate, thereby causing the fixed side to flip, which can prevent the strong light during welding from damaging the swing-type visual detector 6.

[0033] Furthermore, both ends of the limiting horizontal plate 41 are fixedly connected to end baffles 43, and the sliding driver 5 has a threaded screw 51 that is movably connected to the two end baffles 43. The end of the threaded screw 51 passes through the end baffle 43 and is connected to a drive motor 53, and the drive motor 53 is fixedly connected to the end baffle 43.

[0034] More specifically, the threaded screw 51 has parallel limiting slide rods 52 on both sides, and both ends of the limiting slide rods 52 are fixedly connected to the end baffle 43. The threaded screw 51 and the limiting slide rods 52 respectively pass through the slider 61.

[0035] Furthermore, the slider 61 is provided with a threaded hole 65 corresponding to the threaded screw 51, and the threaded screw 51 and the threaded hole 65 are threadedly engaged. The slider 61 is also provided with limiting holes 66 corresponding to the limiting slide rod 52 on both sides, and the limiting slide rod 52 is slidably connected to the limiting hole 66.

[0036] By adopting the above technical solution, the drive motor 53 drives the threaded screw 51 to rotate. Through the threaded engagement between the threaded screw 51 and the threaded hole 65 on the slider 61, the slider 61 moves up and down. The limiting hole 66 on the slider 61 slides with the limiting slide rod 52, thereby restricting the slider 61. This allows the slider 61 to drive the industrial camera 63 to slide up and down, adjusting the detection position of the industrial camera 63.

[0037] Furthermore, the limiting cross plate 41 is integrally provided with an end baffle 43 on the side near the isolation shell 1, and the other end of the isolation shell 1 is fixedly connected to the isolation shell 1 by bolts. The laser heat sink 3 penetrating the isolation shell 1 is also fixedly connected to both sides of the laser fusion joint 2.

[0038] Furthermore, the industrial camera 63 is located on the side of the limiting plate 41 away from the threaded screw 51. The industrial camera 63 can be flipped while the limiting plate 41 moves to the side, thereby adjusting the orientation of the bottom lens of the industrial camera 63.

[0039] The working principle of this utility model is as follows: When in use, the optical fiber is first placed below the laser fusion joint 2. The drive motor 53 drives the threaded screw 51 to rotate. Through the threaded engagement between the threaded screw 51 and the threaded hole 65, the threaded screw 51 moves downward. At the same time, the slider 6 drives the connecting gear 62 to move downward through the connecting shaft 64. Since the connecting gear 62 meshes with the fixed rack 46 behind it, the connecting gear 62 will also drive the industrial camera 63 to rotate while moving downward. The bottom lens of the industrial camera 63 is rotated to face the optical fiber fusion position for inspection. Before fusion, the drive motor 53 drives the threaded screw 51 to rotate in the opposite direction, causing the industrial camera 63 to move upward. At this time, the bottom lens of the industrial camera 63 rotates to the side away from the fusion position to prevent the strong light emitted during fusion from damaging the industrial camera 63.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A visual inspection device for automatic fiber optic splicing, characterized in that: The laser fusion splicer (2) for fiber optic splicing is provided. An isolation shell (1) is fixedly connected to the side of the laser fusion splicer (2). A mounting bracket (4) is installed on the side of the isolation shell (1) away from the laser fusion splicer (2). A sliding driver (5) and a swing-type visual detector (6) are respectively provided on both sides of the mounting bracket (4). The swing-type vision detector (6) includes a connecting shaft (64) that is movably connected to the mounting bracket (4), and the two ends of the connecting shaft (64) are respectively provided with a slider (61) and a connecting gear (62). One end of the connecting shaft (64) is rotated with the slider (61) through a bearing, and the other end is fixedly connected to an industrial camera (63) through the connecting gear (62).

2. The visual inspection device for automatic fiber optic splicing according to claim 1, characterized in that: The mounting bracket (4) includes a limiting horizontal plate (41) arranged parallel to the isolation shell (1), and a vertical limiting partition (42) is integrally provided on the side of the limiting horizontal plate (41) away from the isolation shell (1), and a limiting groove (45) is provided in the limiting partition (42).

3. The visual inspection device for automatic fiber optic splicing according to claim 2, characterized in that: The connecting shaft (64) passes through the limiting slide groove (45) and slides in cooperation with the limiting slide groove (45). The connecting gear (62) and the slider (61) are located on both sides of the limiting partition (42). The limiting horizontal plate (41) has a fixed rack (46) embedded on the side close to the connecting gear (62), and the connecting gear (62) and the fixed rack (46) mesh with each other.

4. The visual inspection device for automatic fiber optic splicing according to claim 3, characterized in that: Both ends of the limiting horizontal plate (41) are fixedly connected to end baffles (43). The sliding driver (5) has a threaded screw (51) that is movably connected to the two end baffles (43). The end of the threaded screw (51) passes through the end baffle (43) and is connected to a drive motor (53). The drive motor (53) is fixedly connected to the end baffle (43).

5. The visual inspection device for automatic fiber optic splicing according to claim 4, characterized in that: The threaded screw (51) has parallel limiting slide rods (52) on both sides, and both ends of the limiting slide rods (52) are fixedly connected to the end baffle (43). The threaded screw (51) and the limiting slide rods (52) pass through the slider (61) respectively.

6. The visual inspection device for automatic fiber optic splicing according to claim 5, characterized in that: The slider (61) is provided with a threaded hole (65) corresponding to the threaded screw (51), and the threaded screw (51) and the threaded hole (65) are threadedly engaged. The slider (61) is also provided with limiting holes (66) corresponding to the limiting slide rod (52) on both sides, and the limiting slide rod (52) is slidably connected to the limiting hole (66).

7. The visual inspection device for automatic fiber optic splicing according to claim 6, characterized in that: The limiting cross plate (41) is integrally provided with an end baffle (43) on the side near the isolation shell (1), and the other end of the isolation shell (1) is fixedly connected to the isolation shell (1) by bolts. The laser fusion joint (2) is also fixedly connected with laser heat sinks (3) that penetrate the isolation shell (1) on both sides.

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