Tail fiber dispensing and curing tool and method thereof

Abstract

The invention relates to the technical field of optical fiber packaging, in particular to a tail fiber dispensing and curing tool and method. A plurality of hole sites are formed in the upper end face of a base, and connecting terminals are matched with a positioning tool and are integrally inserted into the hole sites; the clamping assembly comprises an elastic pressing plate, a torsion shaft is arranged on the rear side of the elastic pressing plate and rotationally connected with the base, and a fastening device connected with the elastic pressing plate in a paired mode is arranged on the base. The front side of the elastic pressing plate is provided with a plurality of buckling positions, and the plurality of buckling positions and the hole positions are arranged in a one-to-one matching manner, so that the elastic pressing plate covers the plurality of connecting terminals in a buckling manner; according to the tail fiber dispensing and curing tool and the method thereof, the connecting terminals are arranged on the hole sites of the base through the positioning tool, and the buckling sites on the elastic pressing plate can avoid the optical fibers, so that the elastic pressing plate can cover the connecting terminals in a buckling manner to apply stable pressure to the connecting terminals, displacement in the dispensing and glue baking curing process is avoided, and the service life of the tail fiber is prolonged. And the packaging precision and quality of the optical fiber device are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of optical fiber packaging, in particular to a tail fiber dispensing and curing tool and a method thereof. BACKGROUND

[0002] In the production and manufacturing process of optical fiber devices, the connection end needs to ensure the precise distance between the optical fiber and the collimating lens, the optical fiber diameter, the focusing accuracy and other requirements. The dispensing and assembly process of the optical fiber and the metal device requires high quality, and usually requires a tool to position the components to control the quality and improve the production efficiency. The existing optical fiber dispensing and positioning tool mainly includes a panel and a negative pressure plate. The panel is provided with a plurality of V grooves, and the negative pressure plate is paired with the panel to clamp and position the optical fiber device for dispensing. No stable force is applied in the vertical direction above the optical fiber device. In the combination process of dispensing, curing and tool, displacement is easy to occur, the glue is easy to swell or produce bubbles during heating, which will also cause the optical fiber device to deviate and affect the assembly accuracy, so that the packaging accuracy of the optical fiber connection end cannot be effectively controlled. Therefore, the prior art still needs to be improved and developed. SUMMARY

[0003] The present application aims at the defects and deficiencies of the prior art, and provides a tail fiber dispensing and curing tool and a method thereof, which has reasonable structure and stable and accurate positioning.

[0004] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0005] The tail fiber dispensing and curing tool comprises a base, a connection terminal, a positioning tool and a clamping assembly. A plurality of hole positions are formed on the upper end face of the base, and the connection terminal is integrally inserted into the hole position in pairs with the positioning tool. The clamping assembly comprises an elastic pressing plate, the rear side of the elastic pressing plate is provided with a torsion shaft, the torsion shaft is rotatably connected with the base, and the base is provided with a fastening device connected with the elastic pressing plate in pairs. A plurality of buckling positions are formed on the front side of the elastic pressing plate, and the plurality of buckling positions are arranged in pairs with the hole positions, so that the elastic pressing plate is buckled on the plurality of connection terminals.

[0006] According to the above scheme, the two ends of the base are provided with supports, the two ends of the torsion shaft are connected with the corresponding supports through bearings, and the base and the torsion shaft are provided with a tension spring. The tension spring makes the elastic pressing plate have potential energy away from the upper end face of the base, and the fastening device can drive the elastic pressing plate to apply constant pressure to the connection terminal.

[0007] According to the above scheme, the fastening device comprises a fastening shaft and an eccentric wheel. The two ends of the fastening shaft are connected with the corresponding supports through bearings, and one end of the fastening shaft is provided with a driving handle. A plurality of eccentric wheels are arranged on the fastening shaft, and the plurality of eccentric wheels press on the elastic pressing plate.

[0008] According to the above scheme, the clamping assembly further comprises a fixing clamp, the fixing clamp covers the upper end surface of the base, and a suction structure is arranged between the fixing clamp and the base; a plurality of notches are arranged on the fixing clamp, and the plurality of notches and the hole positions are one-to-one matched, so that the connecting terminals are arranged in the notches, and the fixing clamp is buckled on the plurality of positioning tools.

[0009] According to the above scheme, the suction structure comprises a positioning terminal and a positioning shaft sleeve, both ends of the fixing clamp are provided with the positioning terminal, both ends of the base are provided with the positioning shaft sleeve, and the positioning terminal and the positioning shaft sleeve are connected in a matched mode, so that the notches on the fixing clamp and the hole positions are arranged in a one-to-one matched mode.

[0010] According to the above scheme, the suction structure further comprises a positioning buckle and a strong clamping seat, both ends of the fixing clamp are provided with the positioning buckle, both ends of the base are provided with the strong clamping seat, and the positioning buckle and the strong clamping seat are connected in a matched mode, so that the fixing clamp and the base are detachably connected.

[0011] According to the above scheme, the base is provided with a plurality of guide holes, the plurality of guide holes and the hole positions are arranged in a one-to-one matched mode, a concentric hole is arranged between the upper end of the guide hole and the hole position, and the lower end of the guide hole penetrates through the bottom surface of the base; a positioning pin and a spring are arranged in the guide hole, the upper end of the positioning pin penetrates through the concentric hole and extends into the hole position; the lower end of the guide hole is provided with a clamping screw, and the two ends of the spring abut against the positioning pin and the clamping screw, respectively.

[0012] According to the above scheme, the present application further comprises a hanging rack, the hanging rack is connected to the base through a connecting rod, and a plurality of threading grooves are arranged on the hanging rack.

[0013] In addition, the present application also provides a tail fiber dispensing and curing method, comprising the following steps:

[0014] The connecting terminals of a plurality of tail fibers are respectively inserted into each positioning tool;

[0015] The positioning tool with the inserted connecting terminal is inserted into the hole position of the base;

[0016] The fixing clamp is installed, and the bottom end of the notch of the fixing clamp is pressed against the top end of the positioning tool;

[0017] The port on the tail fiber is inserted into the corresponding connecting terminal, meanwhile, the bottom fiber of the tail fiber is arranged in the clamping position of the elastic pressing plate, the top fiber of the tail fiber is arranged in the threading groove of the hanging rack, and the top end plastic part of the tail fiber is arranged in the tray of the hanging rack;

[0018] The elastic pressing plate is driven to be pressed downward, and the bottom end of the clamping position of the elastic pressing plate is pressed against the port at the bottom end of the tail fiber;

[0019] Subsequent dispensing and curing processes are performed.

[0020] Further, the positioning tool is made of 6061 aluminum alloy material.

[0021] The application has the advantages that the structure is reasonable, the connecting terminals are arranged on the hole positions of the base through the positioning tool, the plurality of buckling positions on the elastic pressing plate can avoid the optical fiber, the elastic pressing plate can be buckled on the connecting terminals to apply stable pressure to the connecting terminals, displacement in the process of dispensing and curing is avoided, and the packaging precision and quality of the optical fiber device are improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure of the application;

[0023] Figure 2 is a schematic diagram of the split structure of the base and the clamping assembly of the application;

[0024] Figure 3 is Figure 1 an enlarged schematic diagram of part A in FIG. 4;

[0025] Figure 4 is a schematic diagram of the partial cross-sectional structure of the base of the application.

[0026] In the drawings:

[0027] 1, base; 2, positioning tool; 3, elastic pressing plate; 4, positioning clamp; 5, connecting terminal; 11, hole position; 12, bracket; 13, tension spring; 14, positioning terminal; 15, strong clamping seat; 16, lead-in hole; 17, concentric hole; 18, positioning pin; 19, tightening screw; 21, hanger; 22, connecting rod; 23, threading groove; 31, torsion shaft; 32, buckling position; 33, fastening shaft; 34, eccentric wheel; 35, driving handle; 41, notch; 42, positioning shaft sleeve; 43, positioning buckle. DETAILED DESCRIPTION

[0028] The technical solutions of the application will be described below in combination with the drawings and embodiments.

[0029] As Figures 1-4 shown, the tail fiber dispensing and curing tool comprises a base 1, a connecting terminal 5, a positioning tool 2 and a clamping assembly, a plurality of hole positions 11 are formed on the upper end face of the base 1, the connecting terminal 5 is paired with the positioning tool 2 and is integrally inserted into the hole positions 11; the clamping assembly comprises an elastic pressing plate 3, a torsion shaft 31 is arranged on the rear side of the elastic pressing plate 3, the torsion shaft 31 is rotationally connected with the base 1, and a fastening device matched with the elastic pressing plate 3 is arranged on the base 1; a plurality of buckling positions 32 are formed on the front side of the elastic pressing plate 3, the plurality of buckling positions 32 are arranged one by one in pairs with the hole positions 11, so that the elastic pressing plate 3 is buckled on the plurality of connecting terminals 5.

[0030] The connecting terminal 5 is used for packaging the tail fiber of the optical fiber to form an optical fiber connecting line, and the port on the tail fiber is fixedly connected with the connecting terminal 5 after pairing, and the present application is used for the assembly, dispensing and curing process link of the connecting terminal 5. A plurality of hole positions 11 are arranged on the base 1, and the plurality of hole positions 11 are equidistantly arranged along the same straight line. The positioning tool 2 is also provided with a hole eye matched with the connecting terminal 5, the connecting terminal 5 is inserted into the positioning tool 2 after pairing with the tail fiber port, and then the positioning tool 2 is inserted into the hole position 11 to form positioning.

[0031] Further, the elastic pressing plate 3 is buckled on the upper end of the connecting terminal 5 under the driving of the fastening device, in particular, the elastic pressing plate 3 is provided with a buckle position 32, the buckle position 32 is used for avoiding the tail fiber, so that the elastic pressing plate 3 is flush with the upper end surface of the connecting terminal 5, and then the fastening device applies a pressure to make the elastic pressing plate 3 clamp and fix the positioning tool 2, the connecting terminal 5 and the tail fiber on the hole position 11 of the base 1, and then the connecting terminal 5 can be dispensed.

[0032] It can be understood that, in order to accelerate the packaging efficiency, the connecting terminal 5 is assembled on the base 1 in batches, and is put into an oven for heating to improve the curing speed of the glue.

[0033] The elastic pressing plate 3 can provide a controllable pressure and apply it on the connecting terminal 5 to prevent the connecting terminal 5 and the tail fiber from being displaced during the curing process of the glue, thereby improving the packaging precision and quality.

[0034] Both ends of the base 1 are provided with supports 12, both ends of the torsion shaft 31 are connected with the corresponding supports 12 through bearings, and the base 1 and the torsion shaft 31 are provided with a tension spring 13; the tension spring 13 makes the elastic pressing plate 3 have potential energy away from the upper end surface of the base 1, and the fastening device can drive the elastic pressing plate 3 to apply a constant pressure to the connecting terminal 5. Further, the tension spring 13 first turns up the elastic pressing plate 3 upward to avoid interference when the connecting terminal 5 and the positioning tool 2 are assembled into the base 1, and of course, after the glue is cured, the tension spring 13 can drive the elastic pressing plate 3 to reset to improve the assembly and disassembly efficiency.

[0035] Specifically, the fastening device includes a fastening shaft 33 and eccentric wheels 34. The two ends of the fastening shaft 33 are connected to corresponding brackets 12 via bearings. One end of the fastening shaft 33 is equipped with a drive handle 35. The fastening shaft 33 has several eccentric wheels 34, which press against the elastic pressure plate 3. The fastening shaft 33 is parallel to and spaced apart from the torque shaft 31. The drive handle 35 drives the eccentric wheels 34 to rotate via the fastening shaft 33. When the concave surface of the eccentric wheel 34 contacts the elastic pressure plate 3, it effectively releases the elastic pressure plate 3, causing it to rotate on the base 1 via the torque shaft 31 under the action of the tension spring 13. This causes the elastic pressure plate 3 to flip upwards relative to the base 1, thus moving away from the upper surface of the base 1 and avoiding interference with the assembly and disassembly of the connecting terminal 5 and the positioning fixture 2.

[0036] When the convex surface of the eccentric wheel 34 contacts the elastic pressure plate 3, it drives the elastic pressure plate 3 to cover the connecting terminal 5. The eccentric wheel 34 pushes and squeezes the elastic pressure plate 3, and applies a constant pressure to the upper end of the connecting terminal 5 through the material properties of the elastic pressure plate 3, so that the connecting terminal 5 and the positioning fixture 2 are stably set in the hole 11, avoiding displacement.

[0037] The clamping assembly also includes a fixed clamp 4, which covers the upper surface of the base 1. A suction structure is provided between the fixed clamp 4 and the base 1. The fixed clamp 4 is provided with a plurality of slots 41, which are matched one by one with the holes 11, so that the connecting terminal 5 passes through the slots 41, and the fixed clamp 4 is fastened on a plurality of positioning fixtures 2.

[0038] It is understood that when the positioning fixture 2 is inserted into the hole 11, the positioning fixture 2 and the hole 11 form a hole-shaft fit. Similarly, the connecting terminal 5 and the positioning fixture 2 also have a shaft-hole fit, so that the connecting terminal 5 and the positioning fixture 2 are inserted into the hole 11 to form a concentric arrangement, preventing displacement when the elastic pressure plate 3 covers the connecting terminal 5.

[0039] The fixed fixture 4 is installed before the elastic pressure plate 3. The fixed fixture 4 fits against the upper surface of the base 1, avoids the connecting terminal through the slot 41, and the fixed fixture 4 covers the positioning fixture 2 to fix it in the hole 11 to prevent the positioning fixture 2 from shifting.

[0040] Furthermore, the width of the slot 41 is adapted to the connecting terminal 5, and the connecting terminal 5 passes through the slot 41, so that the fixed fixture 4 limits a number of connecting terminals 5 on the positioning fixture 2, preventing displacement between the connecting terminal 5 and the positioning fixture 2.

[0041] In particular, the mounting fixture 4 is detachably connected to the base 1, which facilitates the assembly and disassembly of the connection terminal 5 and the positioning fixture 2.

[0042] Specifically, the suction structure includes positioning terminals 14 and positioning bushings 42. Positioning terminals 14 are provided at both ends of the mounting fixture 4, and positioning bushings 42 are provided at both ends of the base 1. The positioning terminals 14 and positioning bushings 42 are paired and connected, so that the slots 41 on the mounting fixture 4 are paired with the holes 11 one by one. Through the cooperation of the positioning terminals 14 and positioning bushings 42, the mounting fixture 4 makes the slots 41 match the buckles 32 and the holes 11.

[0043] The suction structure also includes positioning buckles 43 and strong retaining seats 15. Positioning buckles 43 are provided at both ends of the mounting fixture 4, and strong retaining seats 15 are provided at both ends of the base 1. The positioning buckles 43 and strong retaining seats 15 are paired and connected, thereby allowing the mounting fixture 4 to be detachably connected to the base 1. The positioning buckles 43 and strong retaining seats 15 can engage to fix the mounting fixture 4 onto the base 1.

[0044] The base 1 is provided with a plurality of guide holes 16, which are paired with holes 11 one by one. A concentric hole 17 is provided between the upper end of the guide hole 16 and the hole 11, and the lower end of the guide hole 16 penetrates the bottom surface of the base 1. A positioning pin 18 and a spring are provided inside the guide hole 16. The upper end of the positioning pin 18 passes through the concentric hole 17 and extends into the hole 11. A set screw 19 is provided at the lower end of the guide hole 16, and the two ends of the spring abut against the positioning pin 18 and the set screw 19, respectively. The positioning pin 18 can move up and down along the centering hole 17. When the positioning fixture 2 is inserted into the hole 11, the positioning pin 18 allows the positioning fixture 2 to be centered within the hole 11. Furthermore, under the action of the spring, the positioning pin 18 can provide a supporting force, which, together with the aforementioned mounting fixture 4, forms a vertical clamping force on the positioning fixture 2, and this clamping force can be adjusted by the set screw 19.

[0045] The present invention also includes a hanging bracket 21, which is connected to the base 1 via a connecting rod 22, and the hanging bracket 21 is provided with a plurality of wire slots 23.

[0046] In addition, the present invention also provides a method for dispensing and curing pigtail adhesive, comprising the following steps:

[0047] First, the connecting terminals 5 of several pigtails are respectively inserted into each positioning fixture 2, that is, each connecting terminal 5 is inserted into each positioning fixture 2. For example, in this embodiment, the connecting terminals 5 of the 16 pigtails are respectively inserted into 16 positioning fixtures 2.

[0048] Then, the positioning fixture 2 with the connecting terminal 5 inserted is inserted into the hole 11 of the base 1 to position the connecting terminal 5 of the pigtail.

[0049] Next, install the mounting fixture 4, so that the bottom end of the slot 41 of the mounting fixture 4 presses against the top end of the positioning fixture 2, thereby achieving the clamping and fixing of the positioning fixture 2 (e.g., Figure 3 (as shown);

[0050] Next, insert the port on the pigtail into the corresponding connection terminal 5, and at the same time place the bottom fiber of the pigtail in the buckle 32 of the elastic pressure plate 3, the top fiber of the pigtail in the cable groove 23 of the bracket 21, and the top plastic part of the pigtail in the tray of the bracket 21; in this way, the entire pigtail can be placed properly for subsequent operation, movement, etc.

[0051] Next, the drive elastic plate 3 is pressed downwards, causing the bottom end of the latch 32 of the elastic plate 3 to press against the port at the bottom end of the pigtail, thus achieving the clamping and fixing of the port on the pigtail and the connecting terminal 5 (e.g., Figure 3 (as shown);

[0052] The subsequent dispensing and baking processes are then performed. After completing these processes, the adhesive is cured and can be removed by reversing the steps. The dispensing and baking processes are existing technologies and will not be elaborated upon here.

[0053] Preferably, the positioning fixture 2 is made of 6061 aluminum alloy, which gives the positioning fixture 2 good thermal conductivity and can better help with curing.

[0054] The above description is only a preferred embodiment of the present invention. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of this patent application are included in the scope of this patent application.

Claims

1. A fiber optic dispensing and curing fixture, comprising a base (1), connecting terminals (5), a positioning fixture (2), and a clamping assembly, wherein a plurality of holes (11) are provided on the upper surface of the base (1), and the connecting terminals (5) are paired with the positioning fixture (2) and integrally inserted into the holes (11); characterized in that: The clamping assembly includes an elastic pressure plate (3), and a torque shaft (31) is provided on the rear side of the elastic pressure plate (3). The torque shaft (31) is rotatably connected to the base (1), and the base (1) is provided with a fastening device that is paired with the elastic pressure plate (3). The front side of the elastic pressure plate (3) is provided with a plurality of buckle positions (32), and the plurality of buckle positions (32) are paired with the holes (11) one by one, so that the elastic pressure plate (3) is fastened on a plurality of connecting terminals (5).

2. The fiber optic dispensing and curing fixture according to claim 1, characterized in that: The base (1) is provided with brackets (12) at both ends, and the two ends of the torsion shaft (31) are respectively connected to the corresponding brackets (12) through bearings. The base (1) and the torsion shaft (31) are provided with tension springs (13); the tension springs (13) give the elastic pressure plate (3) potential energy away from the upper surface of the base (1), and the fastening device can drive the elastic pressure plate (3) to apply constant pressure to the connecting terminal (5).

3. The fiber optic dispensing and curing fixture according to claim 2, characterized in that: The fastening device includes a fastening shaft (33) and an eccentric wheel (34). The two ends of the fastening shaft (33) are respectively connected to the corresponding brackets (12) through bearings. One end of the fastening shaft (33) is provided with a drive handle (35). The fastening shaft (33) is provided with a plurality of eccentric wheels (34), and the plurality of eccentric wheels (34) press against the elastic pressure plate (3).

4. The fiber optic dispensing and curing fixture according to claim 1, characterized in that: The clamping assembly also includes a fixed clamp (4), which covers the upper surface of the base (1). A suction structure is provided between the fixed clamp (4) and the base (1). The fixed clamp (4) has several slots (41), which are matched with holes (11) one by one, so that the connecting terminal (5) passes through the slot (41), and the fixed clamp (4) is fastened on several positioning fixtures (2).

5. The fiber optic dispensing and curing fixture according to claim 4, characterized in that: The suction structure includes a positioning terminal (14) and a positioning bushing (42). The two ends of the fixed mounting fixture (4) are provided with positioning terminals (14), and the two ends of the base (1) are provided with positioning bushings (42). The positioning terminals (14) and the positioning bushings (42) are paired and connected, so that the slots (41) and holes (11) on the fixed mounting fixture (4) are paired and set one by one.

6. The fiber optic dispensing and curing fixture according to claim 5, characterized in that: The suction structure also includes a positioning buckle (43) and a strong bracket (15). The two ends of the fixed fixture (4) are provided with positioning buckles (43), and the two ends of the base (1) are provided with strong brackets (15). The positioning buckles (43) and the strong brackets (15) are paired and connected, so that the fixed fixture (4) and the base (1) can be detachably connected.

7. The fiber optic dispensing and curing fixture according to claim 1, characterized in that: The base (1) is provided with a plurality of inlet holes (16), and the plurality of inlet holes (16) are paired with the hole positions (11) one by one. A concentric hole (17) is provided between the upper end of the inlet hole (16) and the hole position (11), and the lower end of the inlet hole (16) penetrates the bottom surface of the base (1). A positioning pin (18) and a spring are provided in the inlet hole (16). The upper end of the positioning pin (18) passes through the concentric hole (17) and extends into the hole position (11). A set screw (19) is provided at the lower end of the inlet hole (16), and the two ends of the spring abut against the positioning pin (18) and the set screw (19) respectively.

8. The fiber optic dispensing and curing fixture according to claim 1, characterized in that: It also includes a hanging bracket (21), which is connected to the base (1) via a connecting rod (22), and the hanging bracket (21) is provided with several wire grooves (23).

9. A method for dispensing and curing fiber optic pigtails, characterized in that, Includes the following steps: Insert the connecting terminals (5) of several pigtails into each positioning fixture (2); Insert the positioning fixture (2) with the connecting terminal (5) into the hole (11) of the base (1); Install the fixed fixture (4) so ​​that the bottom end of the slot (41) of the fixed fixture (4) presses against the top end of the positioning fixture (2); Insert the bottom end of the pigtail into the corresponding connection terminal (5), and at the same time place the bottom fiber of the pigtail in the buckle (32) of the elastic pressure plate (3), place the top fiber of the pigtail in the cable groove (23) of the bracket (21), and place the top plastic part of the pigtail in the tray of the bracket (21). Drive the elastic pressure plate (3) downward to press it tight, so that the bottom end of the buckle (32) of the elastic pressure plate (3) presses the port of the bottom end of the pigtail; Then proceed with the subsequent dispensing and baking processes.

10. The fiber optic dispensing and curing method according to claim 9, characterized in that: The positioning fixture (2) is made of 6061 aluminum alloy.

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