Optical fiber fusion splicer

Abstract

The utility model discloses an optical fiber fusion splicer, which comprises a base body and two groups of fixing mechanisms, the top of the base body is provided with a linear sliding chute, a pair of sliding seats are embedded in the sliding chute in a sliding manner, the two sliding seats can be close to or far away from each other, and a pair of fusion splicing heads are oppositely arranged in the middle of the chute wall in the width direction of the sliding chute; the fixing mechanisms correspond to the sliding seats in a one-to-one mode, each fixing mechanism comprises a pair of clamping seats and a plurality of pairs of hydraulic cylinders, and the pair of clamping seats are oppositely arranged on the two sides of the sliding groove in the width direction and connected with the sliding seats through the hydraulic cylinders so that the two clamping seats can be close to each other; the clamping surfaces of the clamping seats are inclined surfaces, so that a V-shaped clamping groove is formed between the pair of clamping seats, and a pressing plate is horizontally arranged at the tops of the clamping seats. The clamping mechanism can solve the problem that a clamping mechanism of an existing optical fiber fusion splicer cannot ensure that two optical fibers to be fused can be adjusted to be in a coaxial state.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber fusion splicing, in particular to an optical fiber fusion splicer. Background Art

[0002] An optical fiber is a slender and flexible material for transmitting optical signals. During the processing, when two optical fibers need to be fused into one, an optical fiber fusion splicer is generally used to perform a fusion splicing operation on the ends of the two optical fibers. The fusion splicing method is to process the ends of the two optical fibers to be fused and then bring them close to each other to the required distance for fusion splicing, and then perform tip discharge through a pair of fusion joints arranged crosswise with the optical fibers to perform high-temperature fusion splicing on the ends of the optical fibers.

[0003] Since the ends of the two optical fibers need to be brought close to each other before fusion splicing, the existing optical fiber fusion splicers generally use a pair of clamping plates to clamp or the cooperation of a clamping plate and a clamping groove to clamp the two optical fibers radially respectively, and then drive the optical fibers to move axially. However, due to the uncertain diameter of the optical fibers to be fused, the above two clamping structures can only clamp the optical fibers unidirectionally, and cannot adjust the two optical fibers to be coaxial in both the horizontal and vertical directions. For example, when clamping the horizontally placed optical fibers from both sides in the width direction, the position of the optical fibers in the vertical direction cannot be taken into account, or vice versa. When using the clamping plate and the clamping groove to clamp the horizontally placed optical fibers in the vertical direction, the position of the optical fibers in the horizontal width direction cannot be taken into account; if a clamping method combining the horizontal and vertical directions is adopted, such as clamping first in the horizontal direction and then in the vertical direction, sliding friction will occur between the side walls on both sides in the width direction of the optical fiber and the inner wall of the horizontally arranged clamping plate, and vice versa, resulting in wear of the optical fiber and affecting its performance. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an optical fiber fusion splicer, which can solve the problem that the clamping mechanism of the existing optical fiber fusion splicer cannot ensure that the two optical fibers to be fused can be adjusted to the coaxial state.

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

[0006] An optical fiber fusion splicer includes a base body. A linear chute is opened at the top of the base body. A pair of sliding seats are slidably embedded in the chute. The two sliding seats can approach or move away from each other. A pair of fusion joints are oppositely arranged in the middle of the chute wall in the width direction of the chute; two sets of fixing mechanisms, the fixing mechanisms correspond to the sliding seats one by one. The fixing mechanism includes a pair of clamping seats and several pairs of hydraulic cylinders. A pair of clamping seats are oppositely arranged on both sides in the width direction of the chute and are connected to the sliding seats through several hydraulic cylinders, so that the two clamping seats can approach each other; the clamping surface of the clamping seat is an inclined surface, so that a V-shaped clamping groove is formed between the pair of clamping seats, and a pressing plate is horizontally arranged at the top of the clamping seat.

[0007] Optionally, a plurality of seat slots are horizontally and inwardly provided at intervals on one side of the clamping surface of the clamping seat. The seat slots penetrate through the clamping seat in the height direction. The seat slots of the two clamping seats of a pair of clamping seats are arranged staggeredly, so that the two clamping seats can approach each other and be inserted through the staggeredly arranged seat slots.

[0008] Optionally, a plurality of plate slots are horizontally and inwardly provided at intervals on the side of the pressing plate away from the clamping surface. The plate slots penetrate through the pressing plate in the thickness direction. The plate slots of the two pressing plates arranged correspondingly are arranged staggeredly, so that the two pressing plates can be inserted through the staggeredly arranged plate slots.

[0009] Optionally, the pressing plate is axially hinged to the clamping surface, and the hinge axis is arranged parallel to the extending direction of the sliding groove; a limiting block is arranged at the top of the clamping seat. When the pressing plate is in a horizontal state, the limiting block abuts against the top surface of the pressing plate; a return torsion spring is sleeved on the hinge axis. When the return torsion spring is in a natural state, the pressing plate abuts tightly against the limiting block.

[0010] Optionally, the sliding seat includes a bottom plate and a pair of side plates. The bottom plate is horizontally arranged at the bottom of the sliding groove and is slidably connected to the base body. The two side plates are respectively vertically arranged on both sides of the bottom plate and are respectively in contact with the groove walls on both sides in the width direction of the sliding groove; a pair of clamping seats are respectively connected to the inner surfaces of the corresponding pair of side plates through a plurality of hydraulic cylinders, and the push rods of the hydraulic cylinders are horizontally arranged along the width direction of the sliding groove.

[0011] Optionally, a double-headed screw is rotatably connected to the base body along the extending direction of the sliding groove, and the threads at both ends of the double-headed screw are arranged in opposite directions; the bottom plates of the two sliding seats are respectively screwed to both ends of the double-headed screw; any one end of the double-headed screw is located outside the base body and is connected with a knob.

[0012] Optionally, the double-headed screw is screwed to the middle of the bottom plate; a driven gear is coaxially sleeved on the end of the double-headed screw located outside the base body. An active gear is arranged outside the base body away from the driven gear. The active gear is in transmission connection with the driven gear, and the knob is coaxially connected with the active gear.

[0013] Optionally, the diameter of the active gear is larger than that of the driven gear.

[0014] Optionally, a transmission belt is wound around and supported outside the active gear and the driven gear, and matching tooth grooves are arranged on the inner surface of the transmission belt.

[0015] Optionally, a slot is vertically formed in the top surface of the base directly above the double-headed screw. The slot penetrates the base along the axial direction of the double-headed screw, and the height of the bottom of the slot is flush with the top surface of the bottom plate.

[0016] Compared with the prior art, the present utility model has the following advantages and beneficial effects:

[0017] An optical fiber fusion splicer provided by the present utility model realizes that the optical fiber fusion splicer clamps two optical fibers to be fused and enables the ends of the two to approach each other and be fused by arranging a base, a sliding groove, a pair of sliding seats, two groups of fixing mechanisms and a pair of fusion joints; on this basis, by arranging the fixing mechanism including a pair of clamping seats and a plurality of hydraulic cylinders, the hydraulic cylinders are used to push the pair of clamping seats to approach each other so as to clamp the optical fiber to be fused therein; on this basis, by arranging the clamping surface of the clamping seat to be an inclined surface, a V-shaped clamping groove is formed between the pair of clamping seats, and a pressing plate is horizontally arranged at the top of the clamping seat. During the process of the two clamping seats approaching each other, the optical fiber to be fused located in the clamping groove is gradually pushed up by the inclined clamping surface until the top of the optical fiber contacts the bottom surface of the pressing plate. At this time, the optical fiber to be fused is clamped at three points by a pair of clamping surfaces and the pressing plate. Due to the three-point clamping, it must be coaxial with another optical fiber to be fused; through the mutual cooperation of the above features, the optical fiber fusion splicer can effectively solve the problem that the clamping mechanism of the existing optical fiber fusion splicer cannot ensure that the two optical fibers to be fused can be adjusted to a coaxial state. Description of the Drawings

[0018] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model and constitute a part of this application, but do not limit the embodiments of the present utility model. In the drawings:

[0019] Figure 1 is a top view schematic diagram of the optical fiber fusion splicer provided by the embodiment of the present utility model;

[0020] Figure 2 is a top view schematic diagram of the optical fiber fusion splicer provided by the embodiment of the present utility model after removing the clamping seat;

[0021] Figures 3 to 5 is a side view schematic diagram of the process of the clamping seat of the optical fiber fusion splicer provided by the embodiment of the present utility model clamping the optical fiber to be fused;

[0022] Figures 6 to 8 is a top view schematic diagram of the process of the clamping seat of the optical fiber fusion splicer provided by the embodiment of the present utility model clamping the optical fiber to be fused.

[0023] Marks in the drawings and corresponding component names:

[0024] 10 - Substrate; 101 - Groove; 11 - Slide groove; 12 - Slide block; 121 - Bottom plate; 122 - Side plate; 13 - Fusion joint; 20 - Clamping seat; 201 - Seat slot; 202 - Limit block; 21 - Hydraulic cylinder; 22 - Clamping groove; 23 - Pressing plate; 231 - Plate slot; 30 - Double - headed screw; 31 - Knob; 32 - Driven gear; 33 - Driving gear; 34 - Transmission belt. Detailed implementation manner

[0025] To make the purpose, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the embodiments and the accompanying drawings. The illustrative embodiments of the present utility model and their descriptions are only used to explain the present utility model and are not intended to limit the present utility model.

[0026] Embodiment

[0027] Please refer to Figures 1 to 8 , this embodiment provides an optical fiber fusion splicer, including a substrate 10. A linear slide groove 11 is opened at the top of the substrate 10. A pair of slide blocks 12 are slidably embedded in the slide groove 11. The two slide blocks 12 can approach or move away from each other. A pair of fusion joints 13 are oppositely arranged in the middle of the groove walls in the width direction of the slide groove 11. Second, it includes two sets of fixing mechanisms. The fixing mechanisms correspond to the slide blocks 12 one by one. The fixing mechanism includes a pair of clamping seats 20 and several pairs of hydraulic cylinders 21. A pair of clamping seats 20 are oppositely arranged on both sides in the width direction of the slide groove 11 and are connected to the slide blocks 12 through several hydraulic cylinders 21, so that the two clamping seats 20 can approach each other. The clamping surface of the clamping seat 20 is an inclined surface, so that a V - shaped clamping groove 22 is formed between the pair of clamping seats 20. A pressing plate 23 is horizontally arranged at the top of the clamping seat 20.

[0028] The optical fiber fusion splicer provided in this embodiment realizes the functions of clamping two optical fibers to be fused and making the ends of the two fibers approach and fuse with each other by setting a base body 10, a chute 11, a pair of sliding seats 12, two sets of fixing mechanisms and a pair of fusion joints 13. On this basis, by setting the fixing mechanism to include a pair of clamping seats 20 and a number of hydraulic cylinders 21, the hydraulic cylinders 21 are used to push the pair of clamping seats 20 closer to each other to clamp the optical fibers to be fused therein. On this basis, by setting the clamping surface of the clamping seat 20 to be an inclined surface, a V-shaped clamping groove 22 is formed between the pair of clamping seats 20, and a pressing plate 23 is horizontally arranged on the top of the clamping seat 20. When the two clamping seats 20 approach each other, the optical fiber to be fused in the clamping groove 22 is gradually pushed up by the inclined clamping surface until the top of the fiber contacts the bottom surface of the pressing plate 23. At this time, the optical fiber to be fused is clamped at three points by a pair of clamping surfaces and the pressing plate 23. Due to the three-point clamping, it must be coaxial with another optical fiber to be fused. Through the mutual cooperation of the above features, the optical fiber fusion splicer can effectively solve the problem that the clamping mechanism of the existing optical fiber fusion splicer cannot ensure that the two optical fibers to be fused can be adjusted to the coaxial state.

[0029] To prevent the distance between the two clamping seats 20 from being too large to meet the clamping requirements of the optical fiber to be fused, a plurality of seat slots 201 are horizontally and inwardly arranged at intervals on one side of the clamping seat 20 along the clamping surface. The seat slots 201 penetrate the clamping seat 20 in the height direction. The seat slots 201 of the two clamping seats 20 of the pair of clamping seats 20 are arranged staggeredly, so that the two clamping seats 20 can approach each other and be inserted through the staggeredly arranged seat slots 201.

[0030] Similarly, a plurality of plate slots 231 are horizontally and inwardly arranged at intervals on the side of the pressing plate 23 away from the clamping surface. The plate slots 231 penetrate the pressing plate 23 in the thickness direction. The plate slots 231 of the two corresponding pressing plates 23 are arranged staggeredly, so that the two pressing plates 23 can be inserted through the staggeredly arranged plate slots 231.

[0031] To prevent the pressing plate 23 from obstructing the optical fiber to be fused from being placed into the clamping groove 22, the pressing plate 23 is axially hinged to the clamping surface, and the hinge axis is arranged parallel to the extension direction of the chute 11. A limit block 202 is arranged on the top of the clamping seat 20. When the pressing plate 23 is in the horizontal state, the limit block 202 abuts against the top surface of the pressing plate 23. A return torsion spring is sleeved on the hinge axis. When the return torsion spring is in the natural state, the pressing plate 23 abuts tightly against the limit block 202.

[0032] Through the above settings, the optical fiber to be fused can be pressed into the clamping groove 22. The pressing plate 23 can only rotate downward and then rotate upward and reset under the action of the return torsion spring after separating from the optical fiber to be fused.

[0033] To further explain the specific structure of the sliding seat 12, the sliding seat 12 includes a bottom plate 121 and a pair of side plates 122. The bottom plate 121 is horizontally arranged at the bottom of the chute 11 and is slidably connected to the base body 10. The two side plates 122 are respectively vertically arranged on both sides of the bottom plate 121 and are respectively in contact with the groove walls on both sides in the width direction of the chute 11. A pair of clamping seats 20 are respectively connected to the inner surfaces of the corresponding pair of side plates 122 through a plurality of hydraulic cylinders 21. The push rods of the hydraulic cylinders 21 are horizontally arranged along the width direction of the chute 11.

[0034] To simultaneously and synchronously control the two sliding seats 12 to approach or move away from each other, a double-headed screw 30 is rotatably connected to the base body 10 along the extending direction of the chute 11. The threads at both ends of the double-headed screw 30 are arranged in opposite directions. The bottom plates 121 of the two sliding seats 12 are respectively screwed to both ends of the double-headed screw 30. Any one end of the double-headed screw 30 is located outside the base body 10 and is connected with a knob 31.

[0035] To prevent the knob 31 with a larger diameter from obstructing the insertion of the optical fiber to be welded, the double-headed screw 30 is screwed to the middle of the bottom plate 121. A driven gear 32 is coaxially sleeved on the end of the double-headed screw 30 located outside the base body 10. An active gear 33 is arranged outside the base body 10 away from the driven gear 32. The active gear 33 is in transmission connection with the driven gear 32. The knob 31 is coaxially connected with the active gear 33.

[0036] Preferably, the diameter of the active gear 33 is larger than that of the driven gear 32.

[0037] Optionally, a transmission belt 34 is wound around and supported outside the active gear 33 and the driven gear 32. The inner surface of the transmission belt 34 is provided with matching tooth grooves.

[0038] To preliminarily limit the optical fiber to be welded, an embedding groove 101 is vertically opened at the top surface of the base body 10 directly above the double-headed screw 30. The embedding groove 101 penetrates through the base body 10 along the axial direction of the double-headed screw 30. The setting height of the bottom of the embedding groove 101 is flush with the top surface of the bottom plate 121.

[0039] The above specific implementation manners further elaborate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above is only the specific implementation manners of the present invention and is not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An optical fiber fusion splicer, characterized in that, Comprising: A base body (10), a linear chute (11) is opened at the top of the base body (10), a pair of sliding seats (12) are slidably embedded in the chute (11), the two sliding seats (12) can approach or move away from each other, and a pair of melting joints (13) are oppositely arranged in the middle of the groove walls in the width direction of the chute (11); Two groups of fixing mechanisms, the fixing mechanisms correspond to the sliding seats (12) one by one, the fixing mechanism includes a pair of clamping seats (20) and several pairs of hydraulic cylinders (21), a pair of the clamping seats (20) are oppositely arranged on both sides in the width direction of the chute (11), and are connected to the sliding seat (12) through several hydraulic cylinders (21), so that the two clamping seats (20) can approach each other; the clamping surface of the clamping seat (20) is an inclined surface, so that a V-shaped clamping groove (22) is formed between the pair of clamping seats (20), and a pressing plate (23) is horizontally arranged at the top of the clamping seat (20).

2. The optical fiber fusion splicer according to claim 1, characterized in that, A plurality of seat slots (201) are horizontally and inwardly spaced on one side of the clamping surface of the clamping seat (20), the seat slots (201) penetrate through the clamping seat (20) in the height direction, and the seat slots (201) of the two clamping seats (20) of the pair of clamping seats (20) are staggered, so that the two clamping seats (20) can approach each other and be inserted through the staggered seat slots (201).

3. The optical fiber fusion splicer according to claim 2, characterized in that, A plurality of plate slots (231) are horizontally and inwardly spaced on the side of the pressing plate (23) away from the clamping surface, the plate slots (231) penetrate through the pressing plate (23) in the thickness direction, and the plate slots (231) of the two pressing plates (23) arranged correspondingly are staggered, so that the two pressing plates (23) can be inserted through the staggered plate slots (231).

4. The optical fiber fusion splicer according to claim 3, wherein The pressing plate (23) is axially hinged to the clamping surface, and the hinge axis is arranged parallel to the extending direction of the chute (11); A limiting block (202) is arranged at the top of the clamping seat (20), and when the pressing plate (23) is in a horizontal state, the limiting block (202) abuts against the top surface of the pressing plate (23); A reset torsion spring is sleeved on the hinge axis, and when the reset torsion spring is in a natural state, the pressing plate (23) abuts tightly against the limiting block (202).

5. The optical fiber fusion splicer according to claim 1, characterized in that, The sliding seat (12) includes a bottom plate (121) and a pair of side plates (122), the bottom plate (121) is horizontally arranged at the bottom of the chute (11) and is slidably connected to the base body (10), and the two side plates (122) are respectively vertically arranged on both sides of the bottom plate (121) and are respectively in contact with the groove walls on both sides in the width direction of the chute (11); A pair of the clamping seats (20) are respectively connected to the inner surfaces of the corresponding pair of side plates (122) through several hydraulic cylinders (21), and the push rods of the hydraulic cylinders (21) are horizontally arranged in the width direction of the chute (11).

6. The optical fiber fusion splicer according to claim 5, wherein, A double-headed screw rod (30) is rotatably connected to the base body (10) along the extending direction of the chute (11), and the threads at both ends of the double-headed screw rod (30) are arranged in opposite directions; The bottom plates (121) of the two sliding seats (12) are respectively screwed to both ends of the double-headed screw (30); Any one end of the double-headed screw (30) is located outside the base body (10) and is connected with a knob (31).

7. The optical fiber fusion splicer according to claim 6, characterized in that, The double-headed screw (30) is screwed to the middle of the bottom plate (121); A driven gear (32) is coaxially sleeved on one end of the double-headed screw (30) located outside the base body (10). An active gear (33) is arranged outside the base body (10) and away from the driven gear (32). The active gear (33) is in transmission connection with the driven gear (32), and the knob (31) is coaxially connected with the active gear (33).

8. The optical fiber fusion splicer according to claim 7, wherein, The diameter of the active gear (33) is larger than the diameter of the driven gear (32).

9. The optical fiber fusion splicer according to claim 8, wherein, A transmission belt (34) is wound around and supported outside the active gear (33) and the driven gear (32), and matching tooth grooves are arranged on the inner surface of the transmission belt (34).

10. The optical fiber fusion splicer according to claim 7, characterized in that, A slot (101) is vertically opened at the top surface of the base body (10) directly above the double-headed screw (30). The slot (101) penetrates through the base body (10) along the axial direction of the double-headed screw (30), and the setting height of the bottom of the slot (101) is flush with the top surface of the bottom plate (121).

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