Automatic core adjusting and curing assembly equipment for optical fiber array unit

Abstract

The invention relates to the technical field of optical fiber array units, in particular to automatic core adjusting and curing assembling equipment for an optical fiber array unit. Comprising a frame and a lifting frame, a central control unit is installed on the frame, a double-shaft moving frame capable of moving in a double-shaft mode is arranged on the lifting frame, a first motor is installed on the double-shaft moving frame, the double-shaft moving frame is connected with a clamping frame in a sliding mode, a bidirectional glue uniformizing mechanism is arranged on an output shaft of the first motor, and when the first motor works, the bidirectional glue uniformizing mechanism drives the clamping frame to synchronously vibrate horizontally and vertically. A clamping driving piece is arranged on the clamping frame and connected with two symmetrical adsorption clamps, and the distance between the two adsorption clamps can be adjusted. The device has the beneficial effects that a full-process automatic system is constructed through multi-module linkage cooperation, the rotary table is driven by the second motor to drive the six linear driving modules distributed in an array mode and the visual sensor to operate synchronously, and automatic feeding, end face glue brushing, secondary glue injection, UV curing, glue cleaning and grinding are sequentially achieved in the clockwise direction.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of optical fiber array unit, in particular to an automatic core adjusting and curing assembly equipment for optical fiber array unit. BACKGROUND

[0002] The optical fiber array is the core component in the field of optical communication and optical module, and its core function is to realize accurate positioning, fixing and array arrangement of multiple optical fibers, and to ensure efficient transmission of optical signals. In the prior art, a patent document with publication number CN117130093B discloses a new combined ferrule optical fiber array and its method and core adjusting and dispensing device, but the assembly process needs manual assistance for optical fiber positioning and dispensing operation, the automation degree is low, the operation efficiency is low, and manual operation is easy to introduce positioning deviation, and the technology adopts a single direction dispensing method, the glue is affected by gravity and surface tension, and is easy to accumulate or distribute unevenly in the gap between components, the stress on the bonding surface after curing is uneven, not only reduces the structural strength, but also may block the optical fiber insertion hole due to residual glue, affecting the subsequent optical fiber insertion accuracy, and the above process lacks a glue uniformizing process before curing of the optical fiber, the glue cannot fully penetrate to the corner position of the gap between components, and lack of glue phenomenon is easy to occur, further reducing the reliability and consistency of the product. Therefore, the present application provides an automatic core adjusting and curing assembly equipment for optical fiber array unit to solve the problems in the background art. SUMMARY

[0003] The present application provides an automatic core adjusting and curing assembly equipment for optical fiber array unit to solve the problems in the prior art that the assembly process of the existing assembly equipment needs manual assistance for optical fiber positioning and dispensing operation, the automation degree is low, the operation efficiency is low, and manual operation is easy to introduce positioning deviation, and the technology adopts a single direction dispensing method, the glue is affected by gravity and surface tension, and is easy to accumulate or distribute unevenly in the gap between components, the stress on the bonding surface after curing is uneven, not only reduces the structural strength, but also may block the optical fiber insertion hole due to residual glue, affecting the subsequent optical fiber insertion accuracy.

[0004] The technical scheme for solving the above technical problems is as follows: an automatic core adjusting and curing assembly equipment for optical fiber array unit, comprising a frame and a lifting frame, a central control unit is installed on the frame, a double-shaft moving frame capable of moving in two axes is arranged on the lifting frame, a first motor is installed on the double-shaft moving frame and a clamping frame is connected thereto in a sliding manner, a bidirectional glue uniformizing mechanism is arranged on the output shaft of the first motor, when the first motor works, the bidirectional glue uniformizing mechanism drives the clamping frame to vibrate synchronously horizontally and vertically, a clamping driving element is arranged on the clamping frame, two symmetrical and spacing-adjustable suction clamps are connected to the clamping driving element, and a bottom plate and a cover plate are respectively suctioned on the two suction clamps. The rotary table is rotatably connected to the frame and is driven by a second motor, six linear driving modules and six visual sensors are arranged on the rotary table, the data end of the visual sensor is connected with the central control unit, each linear driving module is drivingly connected with an execution arm, along the clockwise direction, the six execution arms are respectively provided with an automatic feeding module, an end face glue brushing head, a U-shaped glue injection arm, a U-shaped curing lamp, a glue cleaning needle group and a grinding seat; The packaging head is slidingly connected to the frame, five optical fiber units are arranged on the packaging head, and a packaging push rod is connected between the packaging head and the frame.

[0005] Based on the above technical scheme, the application can be further improved as follows.

[0006] As a preferred technical scheme of the application, a lead screw lifting module is installed on the frame, the lead screw lifting module is drivingly connected with a lifting frame, an axial lead screw and a synchronous shaft are rotatably installed on the lifting frame, first bevel gears are installed on the axial lead screw and the synchronous shaft, the two first bevel gears are orthogonally engaged, a synchronous gear is installed on the synchronous shaft, a third motor is installed on the lifting frame, and a first partial gear connected with the synchronous gear is installed on the output shaft of the third motor.

[0007] As a preferred technical scheme of the application, the clamping driving member includes a bidirectional lead screw rotatably connected to the clamping frame and a clamping motor installed on the clamping frame, the output shaft end of the clamping motor is fixedly connected with the bidirectional lead screw, the bidirectional lead screw is vertically arranged, a forward threaded segment and a reverse threaded segment are symmetrically arranged on the bidirectional lead screw, driving clamps are drivingly connected to the forward threaded segment and the reverse threaded segment, two driving clamps are respectively connected with two suction clamps, three pressure sensors are arranged at the connection between each driving clamp and the suction clamp, the data output end of the pressure sensor is connected with the central control unit, positioning suction cups are arranged on the suction clamp, a code alignment baffle is installed in the middle of the clamping frame, and a surplus glue recovery baffle is installed on the lower driving clamp.

[0008] As a preferred technical scheme of the application, the bidirectional glue uniformizing mechanism includes two tooth shafts rotatably connected to the lifting frame, second partial gears are installed on the two tooth shafts, the two second partial gears are adaptively connected with the synchronous gear, a tensioning sliding table is slidingly connected to the double-shaft lifting frame, a tensioning wheel is rotatably connected to the tensioning sliding table, a tensioning spring is installed on the side surface of the tensioning sliding table, the other end of the tensioning spring is fixedly connected with the double-shaft lifting frame, a belt shaft is rotatably connected to the double-shaft lifting frame, second bevel gears are installed on the belt shaft and the output shaft of the first motor, the two second bevel gears are orthogonally engaged, a synchronous belt is drivingly connected to the belt shaft, and the tensioning wheel and the two tooth shafts are drivingly connected with the synchronous belt.

[0009] As a preferred technical solution of the present invention, the center angles corresponding to the effective meshing sections on the first and second gears are both 60°, the two second gears are respectively disposed on both sides of the synchronous shaft axis, and the effective meshing sections on the two second gears are offset by 120°.

[0010] As a preferred technical solution of the present invention, the bidirectional uniform adhesive mechanism further includes four elastic reset members installed between the clamping frame and the dual-axis shifting frame. A rack is installed on the clamping frame, and a guide wheel is installed on the output shaft of the first motor. Along the circumferential direction, three uniform adhesive tooth segments and three empty tooth segments are alternately arranged on the guide wheel. The three uniform adhesive tooth segments alternately mesh with the rack, and the transmission stroke of the three uniform adhesive tooth segments to the rack is different.

[0011] As a preferred technical solution of the present invention, the automatic feeding module includes a pusher plate installed on the corresponding execution arm, five feeding pins are arrayed on the side of the rotary table, each feeding pin is clamped with a ceramic ferrule, the pusher plate is provided with a pusher hole corresponding to the position of each feeding pin and slidably connected to the feeding pin, and the axial position of the ceramic ferrule is provided with an optical fiber jack.

[0012] As a preferred technical solution of the present invention, the cleaning needle group includes five cleaning needles installed on the corresponding actuator arm. The cleaning needles and the feeding needles have the same radius, and the radius of the cleaning needles is 0.85 to 0.95 times that of the fiber optic jack.

[0013] As a preferred technical solution of the present invention, six linear drive modules and six vision sensors are arranged in pairs on a rotary table. The optical fiber unit includes an optical fiber body and an exposed fiber core segment disposed at the end of the optical fiber body. The length of the exposed fiber core segment is 1.03-1.05 times the length of the ceramic ferrule.

[0014] As a preferred technical solution of the present invention, it further includes a quantitative glue dispensing device installed on the frame and a glue pumping chamber opened at the axis of the rotary table. The glue outlet of the quantitative glue dispensing device is connected to the glue pumping chamber. The inner cavity of the end face glue brush head and the U-shaped glue injection arm are both connected to the glue pumping chamber through glue tubes, and electromagnetic quantitative valves are installed in both glue tubes.

[0015] The beneficial effects of this invention are: 1. Existing technologies require manual completion of core processes such as ceramic ferrule arrangement, cover plate clamping, manual glue application, and manual disassembly and glue replenishment. This not only results in long single-operation cycles but also leads to significant fluctuations in product accuracy due to the reliance on manual experience, failing to meet the precision requirements of high-density optical modules. This invention constructs a fully automated system through multi-module linkage and collaboration. The rotary table is driven by a second motor, which drives six arrayed linear drive modules and vision sensors to operate synchronously. The process sequentially achieves automatic feeding, end-face glue application, secondary glue application, UV curing, glue removal, and grinding in a clockwise direction. Furthermore, the vision sensors collect position data in real time for each process. The data on the placement and coverage of the adhesive are fed back to the central control unit to dynamically calibrate the extension stroke and working angle of the linear drive module, forming a closed loop of monitoring, feedback, and adjustment. At the same time, in the encapsulation stage, the encapsulation head is driven by the encapsulation push rod to accurately align with the ceramic ferrule array, realizing automated insertion of the fiber optic unit without manual alignment. Compared with the manual step-by-step operation of the prior art, the full-process automation of this invention not only shortens the single assembly cycle, but also eliminates human error through mechanical linkage and closed-loop control, reducing the consistency error of fiber spacing. It is significantly adapted to the needs of large-scale and high-precision production, forming a fundamental difference from the manual assistance mode of the prior art.

[0016] 2. Existing technologies rely on the natural penetration of adhesive through capillary action, which easily leads to adhesive accumulation at the bottom of components and insufficient adhesive at corners due to gravity and surface tension. This results in uneven stress on the bonding surface after curing and insufficient structural strength. This invention solves this problem through the coordinated operation of a bidirectional adhesive spreading mechanism and a quantitative adhesive delivery device. The quantitative adhesive delivery device connects the pump chamber to the adhesive tube end face brush head and a U-shaped dispensing arm, and the adhesive tube has a built-in electromagnetic quantitative valve to achieve precise control of the amount of adhesive applied in one end face brushing and in two sides dispensing, avoiding excessive or insufficient adhesive. The bidirectional adhesive spreading mechanism is driven by a first motor to engage a guide wheel with a rack, combined with an elastic reset component. This allows the clamping frame to synchronously generate horizontal reciprocating vibration and vertical differential vibration. Under the action of three-dimensional vibration, the adhesive fully penetrates into the gaps and corners between the base plate, cover plate, and ceramic insert. The vibration parameters can be dynamically adjusted by the central control unit according to the adhesive viscosity. In addition, the excess adhesive recovery baffle can recover the adhesive that overflows during vibration, avoiding material waste. Compared with the passive penetration of the prior art, the active uniform adhesive distribution and quantitative adhesive delivery of this invention reduce the thickness error of the adhesive layer, improve the shear strength of the bonding surface, solve the problem of insufficient adhesive at the corners, and the product structure stability is significantly better than the prior art, meeting the long-term use requirements in harsh environments.

[0017] 3. Existing technologies rely on manual alignment of the ceramic ferrule end faces and calibration of the base plate and cover plate positions, making it difficult to achieve micron-level precision positioning. Furthermore, the lack of a real-time monitoring mechanism makes subsequent fiber optic splicing failures prone to occur due to positioning deviations. This invention constructs a multi-dimensional positioning system through mechanical positioning, sensor monitoring, and central control linkage to achieve high-precision ferrule alignment. The bidirectional lead screw of the clamping drive component moves two adsorption clamps synchronously closer or further apart. The positioning suction cup array on the adsorption clamps adsorbs the base plate and cover plate, ensuring initial alignment accuracy. Alignment baffles force the ceramic ferrule end faces to be flush, preventing arrangement misalignment. Three pressure sensors are installed at the connection between the active clamp and the adsorption fixture to collect pre-pressure data in real time and feed it back to the central control unit to dynamically adjust the clamping force. At the same time, a vision sensor captures the arrangement of the ceramic ferrule and the alignment of the base plate and cover plate in real time. If a deviation is detected, the central control unit immediately drives the dual-axis shifter to fine-tune the position, realizing real-time ferrule adjustment. Compared with the manual visual calibration of the prior art, the multi-dimensional positioning monitoring and ferrule adjustment linkage of the present invention improves the arrangement accuracy of the ceramic ferrule, reduces the alignment error of the base plate and cover plate, and the product consistency is significantly better than the prior art. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an automated fiber optic array unit alignment and curing assembly device. Figure 2 for Figure 1 A magnified schematic diagram of the partial structure at point A in the middle; Figure 3 This is a schematic diagram of the structure of the U-shaped curing lamp and the gear shaft; Figure 4 for Figure 3 A magnified schematic diagram of the local structure at point B; Figure 5 This is a schematic diagram of the structure with a shaft and a synchronous shaft; Figure 6 This is a structural diagram of the tension spring and the alignment baffle. Figure 7 A schematic diagram of the structure of the U-shaped curing lamp and the vision sensor; Figure 8 This is a schematic diagram of the structure of the fiber optic unit and the encapsulation head; Figure 9 This is a schematic diagram of the feeding needle and the pusher plate.

[0019] The attached diagram lists the components represented by each number as follows: 1. Frame; 2. Lifting frame; 3. Central control unit; 4. Dual-axis moving frame; 5. First motor; 6. Clamping frame; 7. Adsorption fixture; 8. Base plate; 9. Cover plate; 10. Second motor; 11. Rotary table; 12. Linear drive module; 13. Vision sensor; 14. Actuating arm; 15. End face glue brush head; 16. U-shaped glue dispensing arm; 17. U-shaped curing lamp; 18. Grinding seat; 19. Encapsulation head; 20. Fiber optic unit; 21. Encapsulation push rod; 22. Lead screw lifting module; 23. Axial lead screw; 24. Synchronous shaft; 25. Synchronous gear 26. Wheel; 27. Third motor; 28. First part gear; 29. ​​Bidirectional lead screw; 30. Active clamp; 31. Pressure sensor; 32. Positioning suction cup; 33. Alignment baffle; 34. Residual glue recovery baffle; 35. Gear shaft; 36. Second part gear; 37. Tensioning slide; 38. Tensioning spring; 39. Tensioning wheel; 40. Shaft; 41. Elastic reset component; 42. Guide wheel; 43. Glue-equalizing tooth section; 44. Rack; 45. Pusher plate; 46. Feeding needle; 47. Ceramic insert; 48. Cleaning needle; 49. Quantitative glue feeding device. Detailed Implementation

[0020] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0021] The present invention provides the following preferred embodiments; like Figures 1-9 As shown, an automated core-aligning and curing assembly device for a fiber optic array unit includes a frame 1 and a lifting frame 2. A central control unit 3 is installed on the frame 1, and a dual-axis moving frame 4 that can move in both directions is provided on the lifting frame 2. It also includes a screw lifting module 22 installed on the frame 1. The screw lifting module 22 is connected to the lifting frame 2 in a transmission. An axial screw 23 and a synchronous shaft 24 are rotatably installed on the lifting frame 2. A first bevel gear is installed on both the axial screw 23 and the synchronous shaft 24. The two first bevel gears mesh orthogonally. A synchronous gear 25 is mounted on the synchronous shaft 24, and a third motor 26 is mounted on the lifting frame 2. A first gear 27 connected to the synchronous gear 25 is mounted on the output shaft of the third motor 26. When the dual-axis moving frame 4 needs to move axially, the third motor 26 drives the axial lead screw 23 to rotate a specified number of revolutions in a set direction through the first gear 27. When the third motor 26 is working, the non-effective meshing sections of the two second part gears 35 correspond to the synchronous gear 25, thus not affecting the rotation of the synchronous gear 25; The power transmission between the axial lead screw 23 and the synchronous shaft 24 is achieved through the orthogonal meshing of the first bevel gear, and the axial movement stroke of the dual-axis shifter 4 is precisely controlled by the meshing drive of the first gear 27 and the synchronous gear 25. This structure not only ensures the accuracy of displacement adjustment, but also decouples the action of the dual-axis moving frame 4 from the subsequent glue-spreading system through the mechanical linkage characteristics of gear meshing. This ensures that axial movement and glue-spreading operations do not interfere with each other, providing stable and precise displacement support for core processes such as core adjustment and glue application, and improving the coordination of various action units of the equipment. A first motor 5 is mounted on the dual-axis moving frame 4 and a clamping frame 6 is slidably connected thereto. A bidirectional glue-spreading mechanism is provided on the output shaft of the first motor 5. When the first motor 5 is working, the bidirectional glue-spreading mechanism drives the clamping frame 6 to vibrate synchronously in both horizontal and vertical directions. The bidirectional glue-spreading mechanism includes two gear shafts 34 rotatably connected to the lifting frame 2. Each gear shaft 34 is equipped with a second gear 35, and both second gears 35 are adapted and connected to the synchronous gear 25. A tensioning slide 36 is slidably connected to the dual-axis shift frame 4. A tensioning wheel 38 is rotatably connected to the tensioning slide 36. A tensioning spring 37 is installed on the side of the tensioning slide 36. The other end of the tensioning spring 37 is fixedly connected to the dual-axis shift frame 4. A belt shaft 39 is rotatably connected to the dual-axis shift frame 4. A second bevel gear is installed on both the belt shaft 39 and the output shaft of the first motor 5. The two second bevel gears mesh orthogonally. A synchronous belt is driven to the belt shaft 39. The tensioning wheel 38 and the two gear shafts 34 are all driven to the synchronous belt. The center angles corresponding to the effective meshing sections on the first gear 27 and the second gear 35 are both 60°. The two second gears 35 are respectively set on both sides of the axis of the synchronous shaft 24, and the effective meshing sections on the two second gears 35 are staggered by 120°. When the dual-axis shifter 4 needs to be switched to horizontal reciprocating vibration mode by the glue application system, the third motor 26 drives the first part of the gear 27 so that the non-effective meshing section on the first part of the gear 27 corresponds to the synchronous gear 25, thereby not affecting the rotation of the synchronous gear 25. In the horizontal reciprocating vibration mode, the first motor 5 outputs a speed, and after the first motor 5 outputs a speed, it drives the synchronous gear 25 to rotate in both directions. After the synchronous gear 25 rotates in both directions, it drives the axial lead screw 23 to rotate in both directions. After the axial lead screw 23 rotates in both directions, it drives the dual-axis moving frame 4 to reciprocate in the horizontal direction. After the end face glue brush head 15 and U-shaped glue injection arm 16 have finished applying glue, the first motor 5 will work for a set time to complete the glue evenness operation after glue application. The first motor 5, the second motor 10 and the third motor 26 are all equipped with encoders that are connected to the central control unit 3 for data transmission. The design of the 60° effective meshing section between the first gear 27 and the second gear 35, and the 120° staggered arrangement of the two second gears 35, enable flexible switching between the uniform glue mode and the axial movement mode. The first motor 5 drives the gear shaft 34 to rotate via the synchronous belt and tensioning pulley 38. Combined with the automatic tensioning function of the tensioning spring 37, it ensures the stability of the transmission system and avoids the glue uniformity error caused by slippage. The horizontal reciprocating vibration mode allows the adhesive to spread evenly in the gap between components, effectively solving the problems of adhesive accumulation and uneven distribution in traditional adhesive application, and improving the uniformity of force on the bonding surface. At the same time, the motor's built-in encoder is linked with the central control unit 3 to achieve precise control of the adhesive application speed and stroke, ensuring the consistency of adhesive application for products of different specifications. The bidirectional glue-spreading mechanism also includes four elastic reset members 40 installed between the clamping frame 6 and the dual-axis shift frame 4. A rack 43 is installed on the clamping frame 6, and a guide wheel 41 is installed on the output shaft of the first motor 5. Along the circumferential direction, three glue-spreading tooth segments 42 and three empty tooth segments are alternately arranged on the guide wheel 41. The three glue-spreading tooth segments 42 are alternately meshed with the rack 43, and the transmission stroke of the three glue-spreading tooth segments 42 to the rack 43 is different. In a preferred embodiment, the strokes of the three uniform adhesive segments 42 are 0.5 mm, 1.0 mm, and 1.5 mm; The elastic reset component 40 includes a T-shaped guide rod installed on the top surface of the clamping frame 6. The T-shaped guide rod is vertically arranged and slidably connected to the dual-axis shift frame 4. A spring that limits the position of the clamping frame 6 is sleeved on the T-shaped guide rod. Through the synergy of horizontal reciprocating vibration and vertical differential vibration, the adhesive can form a three-dimensional diffusion in the gap between the base plate 8, the cover plate 9 and the ceramic ferrule 46, solving the problems of adhesive accumulation and missing adhesive at the edges caused by traditional unidirectional adhesive uniform application, allowing the thickness error of the adhesive layer on the bonding surface to be controlled within a very small range, and significantly improving the structural stability and optical transmission consistency of the fiber array unit. The clamping frame 6 is equipped with a clamping drive component, and two symmetrical and adjustable adsorption clamps 7 are connected to the clamping drive component. The bottom plate 8 and the cover plate 9 are respectively adsorbed on the two adsorption clamps 7. The clamping drive includes a bidirectional lead screw 28 rotatably connected to the clamping frame 6 and a clamping motor mounted on the clamping frame 6. The output shaft end of the clamping motor is fixedly connected to the bidirectional lead screw 28. The bidirectional lead screw 28 is vertically arranged and has a forward thread section and a reverse thread section symmetrically arranged on it. Both the forward thread section and the reverse thread section are driven to connect to active clamps 29. The two active clamps 29 are respectively connected to two adsorption clamps 7. Each active clamp 29 is provided with three pressure sensors 30 at the connection between it and the adsorption clamp 7. The data output end of the pressure sensor 30 is connected to the central control unit 3. Positioning suction cups 31 are arrayed on the adsorption clamp 7. A aligning baffle 32 is installed in the middle of the clamping frame 6. An excess adhesive recovery baffle 33 is installed on the lower active clamp 29.

[0022] By setting the alignment baffle 32, the ends of multiple ceramic inserts 46 can remain aligned after they are inserted between the base plate 8 and the cover plate 9. By setting the excess adhesive recovery baffle 33, excess adhesive can be recovered during vibration and homogenization. The forward and reverse thread sections of the bidirectional lead screw 28 drive the two adsorption clamps 7 to move closer or further away simultaneously, thereby achieving precise adjustment of the distance between the base plate 8 and the cover plate 9. The 31-array positioning suction cups enhance the stability of adsorption and prevent components from falling off during movement or vibration; Three pressure sensors 30 collect pre-pressure data in real time and feed it back to the central control unit 3 to dynamically adjust the clamping force, which prevents overpressure from damaging the ceramic ferrule 46 or the optical fiber, and avoids underpressure from causing component positioning deviation. The alignment baffle 32 forces the ceramic ferrule 46 to be aligned at the end, directly improving the alignment accuracy and the alignment of subsequent fiber insertion. The residual adhesive recovery baffle 33 efficiently recovers the adhesive that overflows during vibration, reducing material waste and keeping the equipment operating area clean, thus preventing residual adhesive from contaminating and affecting the precision of other processes.

[0023] It also includes a rotary table 11 that is rotatably connected to the frame 1 and driven by a second motor 10, and six linear drive modules 12 and six vision sensors 13 are arrayed on the rotary table 11. The data terminal of the vision sensor 13 is connected to the central control unit 3. Six linear drive modules 12 and six vision sensors 13 are arranged in pairs on the rotary table 11. Six linear drive modules 12 and six vision sensors 13 are arranged in pairs at intervals, so that each actuator 14 can be monitored in real time by the corresponding vision sensor 13 during operation. The vision sensor 13 transmits data such as component position, adhesive coverage, and ceramic insert 46 arrangement to the central control unit 3. The central control unit 3 quickly calibrates the extension stroke and working angle of the linear drive module 12, forming a closed-loop control of monitoring, feedback, and adjustment. This design significantly improves the connection accuracy of each process, avoids the lag and error of manual monitoring, realizes automated and continuous operation of processes such as feeding, gluing, and curing, reduces the cost of manual intervention, and improves the intelligence level of the equipment. Each linear drive module 12 is connected to an actuator arm 14. In a clockwise direction, the six actuator arms 14 are respectively equipped with an automatic feeding module, an end face glue brush head 15, a U-shaped glue injection arm 16, a U-shaped curing lamp 17, a glue cleaning needle group, and a grinding seat 18. Grinding base 18 is made of diamond; The automatic feeding module includes a pusher plate 44 mounted on the corresponding actuator arm 14. Five feeding needles 45 are mounted on the side array of the rotary table 11. Each feeding needle 45 is clamped with a ceramic ferrule 46. The pusher plate 44 is provided with a pusher hole corresponding to the position of each feeding needle 45, which is slidably connected to the feeding needle 45. The axial position of the ceramic ferrule 46 is provided with an optical fiber jack. The cleaning needle assembly includes five cleaning needles 47 mounted on the corresponding actuator arm 14. The cleaning needles 47 and the feeding needles 45 have the same radius, and the radius of the cleaning needles 47 is 0.9 times that of the fiber optic jack. It also includes a packaging head 19 that is slidably connected to the frame 1, with five fiber optic units 20 arrayed on the packaging head 19, and a packaging push rod 21 connecting the packaging head 19 and the frame 1.

[0024] The optical fiber unit 20 includes an optical fiber body and an exposed fiber core segment disposed at the end of the optical fiber body. The length of the exposed fiber core segment is 1.04 times the length of the ceramic ferrule 46.

[0025] The automatic feeding module achieves synchronous and precise feeding of five ceramic inserts 46 through the sliding cooperation of the pusher plate 44 and the feeding needle 45. Compared with the traditional single feeding, the efficiency is improved, and the gap between the pusher hole and the feeding needle 45 ensures the straightness of the feeding trajectory. The cleaning pin 47 has a radius of 0.9 times that of the fiber optic jack, which can accurately insert into the jack to remove residual adhesive without scratching the inner wall of the jack, ensuring smooth fiber insertion and contact accuracy. The exposed fiber core of fiber unit 20 is 1.04 times the length of ceramic ferrule 46, ensuring that the exposed fiber core fits tightly against the inner wall of the fiber optic socket without gaps after insertion.

[0026] It also includes a metering glue dispensing device 48 installed on the frame 1 and a glue pumping chamber opened at the axis position of the rotary table 11. The glue outlet of the metering glue dispensing device 48 is connected to the glue pumping chamber. The inner cavities of the end face glue brush head 15 and the U-shaped glue injection arm 16 are both connected to the glue pumping chamber through glue tubes, and electromagnetic metering valves are installed in both glue tubes. During core adjustment, the working process of this device is as follows: The bottom plate 8 and the cover plate 9 are picked up by two adsorption clamps 7 respectively. After being picked up, the bottom plate 8 and the cover plate 9 are kept precisely aligned. The feeding needle 45 feeds the ceramic insert 46 between the base plate 8 and the cover plate 9, and then maintains a preset pressure between the base plate 8 and the cover plate 9. By setting the alignment baffle 32, the ends of multiple ceramic inserts 46 can remain aligned after they are inserted between the base plate 8 and the cover plate 9. Afterwards, the end face glue brush head 15 simultaneously brushes glue onto the tail ends of multiple ceramic inserts 46 between the base plate 8 and the cover plate 9. After 5 seconds of brushing, the U-shaped glue injection arm 16 injects glue a second time from both sides of the multiple ceramic inserts 46. After the first application of glue and the second application of glue, an automatic glue spreading process is performed. After the second application of adhesive and the uniform application of adhesive, the U-shaped curing lamp 17 cures the adhesive by irradiation with UV light. After curing, the adhesive removal needle group is directed to the fiber optic jacks of each ceramic ferrule 46 to conduct the fiber optic jacks and remove the adhesive. After the fiber optic jack is connected, the polishing base 18 simultaneously polishes the tail ends of multiple ceramic ferrules 46 to make them flush. After polishing, the composite of the base plate 8, cover plate 9 and ceramic ferrules 46 moves to the position of the encapsulation head 19. After the encapsulation head 19 and the composite are combined into one, the exposed fiber core of each fiber unit 20 is inserted into the corresponding fiber optic jack. Then, the encapsulation head 19 is sealed and cured at the junction with the base plate 8 and cover plate 9.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automated fiber optic array unit core alignment and curing assembly device, comprising a frame (1) and a lifting frame (2), wherein a central control unit (3) is mounted on the frame (1), and a dual-axis movable frame (4) is provided on the lifting frame (2), characterized in that, A first motor (5) is installed on the dual-axis moving frame (4) and a clamping frame (6) is slidably connected to it. A bidirectional glue-spreading mechanism is provided on the output shaft of the first motor (5). When the first motor (5) is working, the bidirectional glue-spreading mechanism drives the clamping frame (6) to vibrate synchronously in the horizontal and vertical directions. A clamping drive is provided on the clamping frame (6). Two symmetrical and adjustable-space adsorption clamps (7) are connected to the clamping drive. A base plate (8) and a cover plate (9) are adsorbed on the two adsorption clamps (7) respectively. It also includes a rotary table (11) that is rotatably connected to the frame (1) and driven by the second motor (10). The rotary table (11) is equipped with an array of six linear drive modules (12) and six vision sensors (13). The data terminals of the vision sensors (13) are connected to the central control unit (3). Each linear drive module (12) is connected to an execution arm (14). In the clockwise direction, the six execution arms (14) are respectively equipped with an automatic feeding module, an end face brush head (15), a U-shaped glue injection arm (16), a U-shaped curing lamp (17), a glue cleaning needle group and a grinding seat (18). It also includes a packaging head (19) that is slidably connected to the frame (1), on which five fiber optic units (20) are arrayed, and a packaging push rod (21) is connected between the packaging head (19) and the frame (1).

2. The automated fiber optic array unit alignment and curing assembly equipment according to claim 1, characterized in that, It also includes a screw lifting module (22) installed on the frame (1), the screw lifting module (22) being connected to the lifting frame (2) in a transmission manner, an axial screw (23) and a synchronous shaft (24) being rotatably installed on the lifting frame (2), a first bevel gear being installed on both the axial screw (23) and the synchronous shaft (24), the two first bevel gears being orthogonally meshed, a synchronous gear (25) being installed on the synchronous shaft (24), a third motor (26) being installed on the lifting frame (2), and a first gear (27) connected to the synchronous gear (25) being installed on the output shaft of the third motor (26).

3. The automated core alignment and curing assembly equipment for fiber optic array units according to claim 1, characterized in that, The clamping drive includes a bidirectional lead screw (28) rotatably connected to the clamping frame (6) and a clamping motor mounted on the clamping frame (6). The output shaft end of the clamping motor is fixedly connected to the bidirectional lead screw (28). The bidirectional lead screw (28) is vertically arranged. A forward thread section and a reverse thread section are symmetrically arranged on the bidirectional lead screw (28). Active clamps (29) are driven connected to both the forward thread section and the reverse thread section. The two active clamps (29) are respectively connected to two adsorption clamps (7). Three pressure sensors (30) are provided at the connection between each active clamp (29) and the adsorption clamp (7). The data output end of the pressure sensor (30) is connected to the central control unit (3). Positioning suction cups (31) are arrayed on the adsorption clamp (7). A aligning baffle (32) is installed in the middle of the clamping frame (6). A residual glue recovery baffle (33) is installed on the lower active clamp (29) of the two active clamps (29).

4. The automated fiber optic array unit alignment and curing assembly equipment according to claim 2, characterized in that, The bidirectional glue-spreading mechanism includes two gear shafts (34) rotatably connected to the lifting frame (2). A second gear (35) is installed on each of the two gear shafts (34). The two second gears (35) are adapted to and connected to the synchronous gear (25). A tensioning slide (36) is slidably connected to the dual-axis shift frame (4). A tensioning wheel (38) is rotatably connected to the tensioning slide (36). A tensioning spring (37) is installed on the side of the tensioning slide (36). The other end of the tensioning spring (37) is fixedly connected to the dual-axis shift frame (4). A belt shaft (39) is rotatably connected to the dual-axis shift frame (4). A second bevel gear is installed on both the belt shaft (39) and the output shaft of the first motor (5). The two second bevel gears mesh orthogonally. A synchronous belt is driven to the belt shaft (39). The tensioning wheel (38) and the two gear shafts (34) are driven to the synchronous belt.

5. The automated fiber optic array unit alignment and curing assembly equipment according to claim 4, characterized in that, The center angles corresponding to the effective meshing sections on the first gear (27) and the second gear (35) are both 60°. The two second gears (35) are respectively located on both sides of the axis of the synchronous shaft (24), and the effective meshing sections on the two second gears (35) are staggered by 120°.

6. The automated fiber optic array unit alignment and curing assembly equipment according to claim 5, characterized in that, The bidirectional glue-spreading mechanism also includes four elastic reset members (40) installed between the clamping frame (6) and the dual-axis shift frame (4). A rack (43) is installed on the clamping frame (6), and a guide wheel (41) is installed on the output shaft of the first motor (5). Along the circumferential direction, three glue-spreading tooth segments (42) and three empty tooth segments are alternately arranged on the guide wheel (41). The three glue-spreading tooth segments (42) are alternately meshed with the rack (43), and the transmission stroke of the three glue-spreading tooth segments (42) to the rack (43) is different.

7. The automated fiber optic array unit alignment and curing assembly equipment according to claim 1, characterized in that, The automatic feeding module includes a pusher plate (44) installed on the corresponding execution arm (14). Five feeding needles (45) are arranged on the side of the rotary table (11). Each feeding needle (45) is clamped with a ceramic ferrule (46). The pusher plate (44) and the position corresponding to each feeding needle (45) are provided with a pusher hole that is slidably connected to the feeding needle (45). The axial position of the ceramic ferrule (46) is provided with an optical fiber jack.

8. The automated fiber optic array unit alignment and curing assembly equipment according to claim 7, characterized in that, The cleaning needle assembly includes five cleaning needles (47) mounted on the corresponding actuator (14). The cleaning needles (47) and the feeding needles (45) have the same radius, and the radius of the cleaning needles (47) is 0.85 to 0.95 times that of the fiber optic jack.

9. The automated fiber optic array unit alignment and curing assembly equipment according to claim 1, characterized in that, Six linear drive modules (12) and six vision sensors (13) are arranged in pairs on the rotary table (11). The fiber unit (20) includes a fiber body and an exposed fiber core segment disposed at the end of the fiber body. The length of the exposed fiber core segment is 1.03-1.05 times the length of the ceramic ferrule (46).

10. An automated fiber optic array unit alignment and curing assembly device according to claim 1, characterized in that, It also includes a quantitative glue dispensing device (48) installed on the frame (1) and a glue pumping chamber located on the axis of the rotary table (11). The glue outlet of the quantitative glue dispensing device (48) is connected to the glue pumping chamber. The inner cavities of the end face glue brush head (15) and the U-shaped glue injection arm (16) are connected to the glue pumping chamber through glue tubes, and electromagnetic quantitative valves are installed in both glue tubes.

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