A bonding device and bonding method for positioning glass and optical fiber array

Abstract

The present invention discloses a device and method for bonding positioning glass to an optical fiber array. The bonding device is used to bond the positioning glass to the top surface of the optical fiber array. The bonding device includes a base plate, a plurality of bonding structures, and EVA cotton. The plurality of bonding structures are evenly distributed and arranged in parallel on the base plate. Each bonding structure includes a first main body base, a positioning assembly, a first spring pressing assembly, a second spring pressing assembly, and a clamp assembly. The positioning assembly, the first spring pressing assembly, and the second spring pressing assembly are suitable for bonding the positioning glass to the bottom groove seat. The clamp assembly is suitable for locking the other end of the fiber core of the optical fiber array, and the UV curing structure is suitable for curing the plurality of positioning glasses on the top of the corresponding optical fiber array. The present invention also provides a bonding method that can well control the bonding accuracy and can be adjusted in time according to the optical fiber arrays of different sizes, saving costs and having good repeatability.

Description

Technical Field

[0001] The present invention relates to the field of optical communication technology, and in particular to a bonding device and method for bonding positioning glass and an optical fiber array. Background Art

[0002] FA (fiber optic array) is used in devices that require coupling, but blindly installing it for coupling will cause a lot of inconvenience. Since the front face of FA (fiber optic array) generally has an angle, it is not easy to use for positioning. Therefore, a glass block needs to be mounted on the bottom surface of FA (fiber optic array). This does not affect the parameter performance and can be used for high-precision positioning, bringing many benefits to coupling and process batch production.

[0003] In the existing technology, a simple clamp is generally used for fixing. Since the distance and flatness of the positioning glass block from the front end to the FA (fiber array) must be at least within an accuracy of 0.05mm, and both sides must be 0.1mm smaller than the side edges of the FA (fiber array), this makes fitting very difficult. Not only is it inconvenient to operate, but the fitting accuracy is difficult to control and the repeatability is poor, which can easily cause the FA (fiber array) to loosen or break. Summary of the Invention

[0004] The present invention provides a device and method for bonding positioning glass to an optical fiber array, so as to solve the technical problems in the prior art of using positioning glass for FA (optical fiber array) with low positioning accuracy, poor repeatability, and easy loosening or edge collapse of FA (optical fiber array).

[0005] To solve the above problems, the first object of the present invention is to provide a device for bonding positioning glass to an optical fiber array, which is used to bond the positioning glass to the top surface of the optical fiber array, wherein the optical fiber array includes a fiber core, a bottom groove seat encapsulating one end of the fiber core, and a cover plate, wherein the cover plate is suitable for covering the bottom groove seat, and the positioning glass is bonded to the side of the bottom groove seat facing away from the cover plate. The bonding device includes:

[0006] a bottom plate, the surface of which is provided with a backing plate and a UV curing structure;

[0007] A plurality of fitting structures are evenly distributed and arranged in parallel on the bottom plate, each of the fitting structures includes a first main body base provided on one side of the bottom plate, a positioning assembly for positioning one end of the optical fiber array on the first main body base, a first spring pressing assembly and a second spring pressing assembly, and a clamp assembly, the positioning assembly and the second spring pressing assembly respectively fixing the bottom slot seat from the left and right sides of the optical fiber array, the first spring pressing assembly being adapted to press on the positioning glass from the top of the optical fiber array to position the optical fiber array;

[0008] EVA cotton is arranged on a side of the pad away from the fitting structure, and the EVA cotton is suitable for pressing an end of the fiber core away from the bottom slot seat onto the pad;

[0009] When the positioning assembly, the first spring compression assembly and the second spring compression assembly are suitable for attaching the positioning glass to the bottom groove seat, the clamp assembly is suitable for locking the other end of the fiber core of the optical fiber array, and the UV curing structure is suitable for fixing several positioning glasses on the top of the corresponding optical fiber array.

[0010] Preferably, a first elliptical hole, a first mounting groove and a first sliding groove are formed on the first main body base in a vertical direction, and the first mounting groove and the first sliding groove are respectively located on one side of the length direction of the first main body base and close to the first elliptical hole.

[0011] The first mounting groove is suitable for mounting the positioning assembly to limit a side edge of the bottom groove seat;

[0012] The first sliding groove is provided on the first main body base along a length direction perpendicular to the first main body base, and the second spring pressing assembly is adapted to be installed in the first sliding groove to limit the other side of the bottom groove seat;

[0013] The first elliptical hole is suitable for installing the first spring pressing component to press the positioning glass onto the bottom groove seat.

[0014] Preferably, the positioning assembly includes a positioning plate installed in the first mounting groove and a second locking member threadedly connected to the positioning plate and the first main body base.

[0015] The positioning plate includes a positioning plate body and a first step plate and a second step plate connected to one side of the positioning plate body. The upper surfaces of the first step plate and the second step plate are flush with the positioning plate body. The lower surfaces of the first step plate and the second step plate are provided with step surfaces, and there is a gap between the second step plate and the first step plate.

[0016] Preferably, the first spring pressing assembly includes a first screw, a first spring sequentially inserted on the first screw, an adjustment plate, a pressure plate and an operating handle, the first screw is inserted into the first elliptical hole of the bottom plate and the first main body base, and the bottom ends of the first screw and the first spring are both located in the first elliptical hole.

[0017] First adjustment holes are further provided on both sides of the adjustment plate, and the adjustment plate is connected to the first main body base through the first adjustment holes;

[0018] The two ends of the pressure plate close to the positioning glass are respectively provided with pressure feet, and the pressure feet are suitable for pressing tightly on the positioning glass;

[0019] The operating handle is connected to the top end of the first screw. When the operating handle is pulled upward, the first spring presses the adjustment plate and the pressure plate to lift the pressure foot, and rotates a certain angle to separate the pressure plate from the positioning glass.

[0020] Preferably, a positioning pin is further provided on the first main body base, and a first pin hole is provided on the side of the pressure plate away from the positioning glass. The positioning pin is suitable for being inserted into the first pin hole so that one end of the pressure plate can rotate around the positioning pin to adjust the position angle of the pressure plate.

[0021] Preferably, the second spring pressing assembly includes a sliding groove body suitable for being placed in the first sliding groove, a second screw rod horizontally passing through the sliding groove body, a second spring sleeved on the second screw rod, a cover plate and a push plate covering the sliding groove body,

[0022] The cover plate includes a cover plate body. A second sliding groove is provided on the cover plate body at the location of the first sliding groove. The push plate is suitable for being connected in the second sliding groove.

[0023] Preferably, a second adjustment hole is provided in the second chute, and a third locking member connects the push plate and the cover plate through the second adjustment hole, and the bottom end of the third locking member is connected to the second screw;

[0024] When the push plate is pushed, the third locking member is suitable for driving the second screw to move horizontally, thereby compressing the second spring, and the sliding groove body moves away from the positioning glass; when the push plate is released, the second spring will return to its original state, thereby causing the top pressure plate of the sliding groove body to press against the other side of the positioning glass.

[0025] Preferably, the clamp assembly includes a hinged seat and a first clamp seat installed on the first main body base, a second clamp seat hinged on the hinged seat, and a first locking member, the second clamp seat is suitable for flipping downward and closing with the first clamp seat, the first locking member is suitable for connecting the second clamp seat and the first clamp seat to clamp the fiber core between the second clamp seat and the first clamp seat.

[0026] Preferably, handles are provided on both sides of the bottom plate in the longitudinal direction.

[0027] A second object of the present invention is to provide a method for bonding positioning glass to an optical fiber array. Based on the above-mentioned bonding device for bonding positioning glass to an optical fiber array, the bonding method specifically includes the following steps:

[0028] S1: Install the bonding structure, EVA cotton, UV curing structure and backing plate on the bottom plate, adjust the positioning assembly, the first spring compression assembly and the second spring compression assembly, and open the clamp assembly;

[0029] S2: Push open the second spring pressing assembly and place the optical fiber array so that the optical fiber array is close to the positioning assembly, and the other end of the optical fiber array is fixed on the EVA cotton;

[0030] S3: Loosen the second spring pressing assembly so that the second spring pressing assembly presses against the optical fiber array and fits against the other side of the positioning assembly;

[0031] S4: placing a positioning glass on the top surface of the optical fiber array, and using tweezers to push against the optical fiber array, pulling up the first spring pressing assembly, driving the pressure foot to lift and rotate 90° to above the positioning glass;

[0032] S5: Loosen the first spring pressing assembly to press the pressure foot onto the positioning glass;

[0033] S6: Lock the clamp assembly and complete the operation.

[0034] Compared with the prior art, the present invention has significant advantages and beneficial effects, which are specifically reflected in the following aspects:

[0035] 1. The present invention uses a bonding device for positioning glass and optical fiber array to accurately bond the positioning glass to the top surface of the optical fiber array. Since the front end surface of the optical fiber array has an inclination angle, the bonding device achieves high-precision bonding by using a bonding structure. Since the clamp of the second spring clamping assembly has a fixing groove for limiting the FA (optical fiber array), pressure is applied by the second spring clamping assembly to make the FA (optical fiber array) close to the side of the positioning assembly. The first spring clamping assembly uses a countersunk groove to fix the end face distance of the FA (optical fiber array), thereby achieving repeated positioning of the FA (optical fiber array), and the FA (optical fiber array) can be adjusted by the second spring clamping assembly to cope with FA (optical fiber array) of various sizes at the same time, saving costs.

[0036] The pressure plate on the first spring clamping assembly is also a spring assembly. The spring assembly has built-in positioning and can adjust with the size of the FA (fiber array), making operation convenient and repeatable. The first spring clamping assembly has high positioning accuracy, and the hollow center design facilitates UV fixation after adjustment. The entire bonding structure also features an integrated tray design with EVA foam to secure the fibers. Multiple fiber arrays can be manufactured together, saving curing time, facilitating operation, and adapting to multiple sizes to reduce costs and achieve excellent consistency.

[0037] 2. The top surface of the FA (fiber optic array) uses a 7-shaped block pressure foot to position the glass sheet, which can be adjusted front and back and installed in place under the two-dimensional measuring instrument to achieve an installation accuracy of 0.05mm. The pressure foot has a stepped notch, which can limit the distance between the pressure foot and the FA (fiber optic array) to 0.1mm, and the front and back distance can also meet the accuracy requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 Schematic diagram of the three-dimensional structure of the bonding device for positioning glass and optical fiber array in an embodiment of the present invention;

[0039] Figure 2 A schematic diagram of a three-dimensional structure of multiple bonding structures in an embodiment of the present invention;

[0040] Figure 3 This is a schematic structural diagram of the first main body base in an embodiment of the present invention;

[0041] Figure 4 This is a schematic diagram of the structure in one direction of the bonding device for positioning glass and optical fiber array in an embodiment of the present invention after the first main body base is removed;

[0042] Figure 5 This is a schematic structural diagram of another direction of the device for bonding positioning glass and optical fiber array in an embodiment of the present invention after removing the first main body base;

[0043] Figure 6 Schematic diagram of the assembly structure of the optical fiber array, the clamp assembly, the positioning assembly, the first spring pressing assembly, and the second spring pressing assembly in an embodiment of the present invention;

[0044] Figure 7 A schematic structural diagram of a clamp assembly according to an embodiment of the present invention;

[0045] Figure 8 Schematic diagram of the bonding structure of the positioning assembly, the first spring pressing assembly, the second spring pressing assembly, and the optical fiber array in an embodiment of the present invention;

[0046] Figure 9 Schematic diagram of the exploded structure of the first spring compression assembly in an embodiment of the present invention;

[0047] Figure 10 Schematic diagram of the exploded structure of the second spring compression assembly in an embodiment of the present invention;

[0048] Figure 11 Schematic diagram of the exploded structure of the positioning component in an embodiment of the present invention;

[0049] Figure 12 A schematic diagram of the structure of an optical fiber array in one direction according to an embodiment of the present invention;

[0050] Figure 13 FIG. 2 is a schematic diagram of the structure of the optical fiber array in another direction according to an embodiment of the present invention. FIG.

[0051] Description of reference numerals:

[0052] 1- bottom plate;

[0053] 2-Fit structure;

[0054] 21-first main body base;

[0055] 211 - first elliptical hole; 212 - first screw hole; 213 - first mounting slot; 214 - second screw hole; 215 - first slide slot; 216 - third screw hole; 217 - fourth screw hole;

[0056] 22-clamp assembly;

[0057] 221- hinged seat; 222- first clamp seat; 223- second clamp seat; 224- first locking member;

[0058] 23- Positioning component;

[0059] 231-positioning plate; 2311-positioning plate body; 23111-counterbore; 2312-first step plate; 2313-second step plate; 232-second locking member;

[0060] 24-first spring compression assembly;

[0061] 241 - first screw; 242 - first spring; 243 - adjustment plate; 2431 - first adjustment hole; 244 - pressure plate; 2441 - pressure foot; 2442 - first pin hole; 245 - operating handle;

[0062] 25- second spring compression assembly;

[0063] 251 - sliding groove; 252 - second screw; 253 - second spring; 254 - cover plate; 2541 - cover plate body; 2542 - second sliding groove; 2543 - second adjustment hole; 255 - push plate; 256 - third locking member;

[0064] 3-Fiber optic array;

[0065] 31-fiber core; 32-bottom slot seat; 33-cover plate; 4-EVA cotton; 5-UV curing structure; 6-pad; 7-positioning glass. DETAILED DESCRIPTION

[0066] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0067] In this document, directional terms such as front, back, top, and bottom are defined based on the positions of components in the drawings and relative to each other, and are intended only for clarity and convenience in describing the technical solution. It should be understood that the use of these directional terms should not limit the scope of protection claimed in this application.

[0068] In the absence of conflict, the above embodiments and features in the embodiments may be combined with each other.

[0069] like Figure 1-13 As shown, an embodiment of the present invention provides a device for bonding positioning glass to an optical fiber array, which is used to bond the positioning glass 7 to the top surface of the optical fiber array 3. Since the front end surface of the optical fiber array 3 has an inclined angle and is not suitable for positioning, a glass block needs to be attached to the top surface of the optical fiber array 3. The glass block does not affect the parameter performance and can be well used for high-precision positioning.

[0070] To this end, the bonding device in the embodiment of the present invention includes a base plate 1, a bonding structure 2, an optical fiber array 3, EVA cotton 4, a UV curing structure 5, a pad 6 and a positioning glass 7, wherein:

[0071] The base plate 1 is configured as a rectangular parallelepiped structure, with positioning blocks provided at the four corners of the rectangular parallelepiped structure for fixing the base plate 1 . In addition, mounting holes for other components are also provided on the base plate 1 .

[0072] See also Figure 1 As shown, the bonding structure 2 is used to fix the positioning glass 7 on one end of the optical fiber array 3, and the other end of the optical fiber array 3 is placed on the pad 6, and the pad 6 is placed on the base plate 1, and then the optical fiber array 3 is pressed on the pad 6 through the EVA cotton 4.

[0073] Since the optical fiber array 3 in this embodiment needs to be used within the device and undergo coupling, blindly installing the optical fiber array 3 for coupling introduces numerous inconveniences. This is because the front face of the optical fiber array 3 is typically angled, making it difficult to position the optical fiber array 3. Therefore, a positioning glass 7 is attached to the bottom surface of the optical fiber array 3. Positioning is achieved using this positioning glass 7, which maintains the performance of the optical fiber array 3 while ensuring high-precision positioning. This approach offers numerous advantages for the coupling process and mass production.

[0074] See also Figure 12 、 13 As shown, in this embodiment, the optical fiber array 3 includes a fiber core 31, a bottom groove seat 32, and a cover plate 33. The bottom groove seat 32 is provided with a V-shaped groove for accommodating the fiber core 31, and the cover plate 33 is covered on the bottom groove seat 32, thereby encapsulating one end of the fiber core 31 between the bottom groove seat 32 and the cover plate 33. In this embodiment, the bottom groove seat 32 has a square structure.

[0075] In order to mount the positioning glass 7 on the optical fiber array 3, the embodiment of the present invention designs a bonding structure 2, see Figure 2 、 3 As shown, the fitting structure 2 includes a first main body base 21, a clamp assembly 22, a positioning assembly 23, a first spring pressing assembly 24 and a second spring pressing assembly 25. The first main body base 21 is connected to the bottom plate 1, and is used to assemble the clamp assembly 22, the positioning assembly 23, the first spring pressing assembly 24 and the second spring pressing assembly 25 on the first main body base 21, wherein:

[0076] The first main body base 21 serves as an installation support carrier. A first elliptical hole 211, a first screw hole 212, a first mounting groove 213, a first slide groove 215 and a fourth screw hole 217 are provided on the first main body base 21 in a vertical direction. The first elliptical hole 211 and the first screw hole 212 are used to install the first spring compression assembly 24. The first mounting groove 213 is used to install the positioning assembly 23. In order to fix the positioning assembly 23, a second screw hole 214 is also provided on the first mounting groove 213. The first slide groove 215 is opened on the first main body base 21 along a length direction perpendicular to the first main body base 21, and a third screw hole 216 is provided on the side wall of the first main body base 21 to horizontally penetrate the first slide groove 215.

[0077] In order to mount the clamp assembly 22 on the first main body base 21 , a fourth screw hole 217 is further provided on a side of the first main body base 21 away from the first elliptical hole 211 , and the clamp assembly 22 is mounted through the fourth screw hole 217 .

[0078] As a preferred implementation of the embodiment of the present invention, Figure 1 、 2 As shown in Figures 3, multiple bonding structures 2 are evenly distributed on one side of the base plate 1 along its width direction, so that multiple bonding structures 2 can be made together, which is convenient to operate and reduces process costs. They can also be cured simultaneously to save curing time.

[0079] Specifically, see Figure 3 、 11 As shown, in an embodiment of the present invention, the positioning assembly 23 includes a positioning plate 231 and a second locking member 232. The positioning plate 231 is installed in the first mounting groove 213, and the second locking member 232 is passed through the positioning plate 231 and threadedly connected to the second screw hole 214, thereby locking the positioning assembly 23 on one side of the length direction of the first main body base 21.

[0080] Preferably, to achieve positioning of the optical fiber array 3, the positioning plate 231 includes a positioning plate body 2311, a first step plate 2312, and a second step plate 2313. The first step plate 2312 is connected to one side of the positioning plate body 2311, with its stepped surface located on the lower surface and its upper surface flush with the positioning plate body 2311. Similarly, the second step plate 2313 is connected to the same side of the positioning plate body 2311, with its upper surface also flush with the positioning plate body 2311 and its stepped surface located on the lower surface. Furthermore, a small gap exists between the second step plate 2313 and the first step plate 2312.

[0081] The positioning plate body 2311 is further provided with a countersunk hole 23111, which connects to the first main body base 21 via the countersunk hole 23111 and the second locking member 232. The outer edges of the first step plate 2312 and the second step plate 2313 are arranged perpendicularly. When the bottom groove seat 32 of the optical fiber array 3 is placed along the edges of the first step plate 2312 and the second step plate 2313, the cover plate 33 is located underneath and rests on the positioning plate body 2311. At this time, the first step plate 2312 is attached to one side of the positioning glass 7, and the second step plate 2313 is attached to the other side of the positioning glass 7.

[0082] Specifically, see Figure 11 As shown, in an embodiment of the present invention, the first spring clamping assembly 24 includes a first screw 241, a first spring 242, an adjustment plate 243, a pressure plate 244 and an operating handle 245, wherein the first screw 241 is passed through the first elliptical hole 211 of the bottom plate 1 and the first main body base 21, and the first spring 242 and the adjustment plate 243 are passed through the first screw 241. First adjustment holes 2431 are also provided on both sides of the adjustment plate 243. The adjustment plate 243 is connected to the first main body base 21 by screws connected to the first adjustment holes 2431. In addition, a positioning pin is also provided on the first main body base 21, and one end of the adjustment plate 243 can rotate around the positioning pin to facilitate adjustment of the position angle of the adjustment plate 243.

[0083] The pressure plate 244 is also inserted into the first screw 241 and the positioning pin. The pressure plate 244 is provided with pressure feet 2441 at both ends of the side close to the positioning glass 7. The pressure plate 244 is provided with a first pin hole 2442 on the side away from the positioning glass 7. The top end of the positioning pin is inserted into the first pin hole 2442 and is pressed against the positioning glass 7 by the pressure foot 2441. The operating handle 245 is inserted into the first screw 241. By pulling up the operating handle 245, the first spring 242 located in the first elliptical hole 211 is restored, thereby lifting the pressure foot 2441 and rotating it 90 degrees to one side. When the positioning glass 7 needs to be positioned and pressed, the operating handle 245 is rotated to press so that the pressure foot 2441 is located directly above the positioning glass 7, thereby pressing the positioning glass 7.

[0084] Specifically, see Figure 3 、 10 As shown, in the embodiment of the present invention, the second spring pressing assembly 25 includes a sliding groove 251, a second screw 252, a second spring 253, a cover plate 254, a push plate 255 and a third locking member 256, wherein:

[0085] The sliding groove body 251 is suitable for being placed in the first sliding groove 215 of the first main body base 21. A second screw rod 252 is horizontally passed through the sliding groove body 251. The second screw rod 252 is sleeved with a second spring 253. The side of the sliding groove body 251 close to the positioning glass 7 is also integrally connected to a top pressure plate located on the upper surface of the first main body base 21. The side of the first main body base 21 away from the positioning glass 7 is also provided with a third screw hole 216 connected to the first sliding groove 215, and one end of the second screw rod 252 is passed through the third screw hole 216.

[0086] The cover plate 254 includes a cover plate body 2541, and a second slide groove 2542 is opened on the cover plate body 2541 at the first slide groove 215. The second slide groove 2542 is suitable for mounting the push plate 255. The second slide groove 2542 is also provided with a second adjustment hole 2543. The push plate 255 is fixed to the cover plate body 2541 through the second adjustment hole 2543 and the third locking member 256, wherein the bottom of the third locking member 256 is fixedly connected to the second screw 252. When the push plate 255 is pushed, the third locking member 256 will move to a position in the second adjustment hole 2543 and drive the second screw 252 to move horizontally, thereby driving the second spring 253 to compress. At this time, the sliding groove body 251 moves away from the positioning glass 7. When the push plate 255 is released, the second spring 253 will return to its original state, so that the top pressure plate of the sliding groove body 251 presses on the other side of the positioning glass 7.

[0087] Specifically, see Figure 6 、 7 As shown, in an embodiment of the present invention, the clamp assembly 22 includes a hinged seat 221, a first clamp seat 222, a second clamp seat 223 and a first locking member 224. The hinged seat 221 is connected to the first main body base 21, the first clamp seat 222 is installed on the first main body base 21, and the second clamp seat 223 is hingedly connected to the hinged seat 221. When the second clamp seat 223 is flipped downward and closed with the first clamp seat 222, the fiber core 31 can be clamped. In addition, a first locking member 224 is also provided on the first clamp seat 222, and the second clamp seat 223 is connected to the first clamp seat 222 through the first locking member 224.

[0088] It should be noted that the inclination angle of the front end face of the optical fiber array 3 in this embodiment is 8 degrees. When the optical fiber array 3 is used for coupling in a device, blind installation of the coupling will cause many inconveniences to the coupling. By attaching a positioning glass 7 to the top surface of the FA (optical fiber array), this does not affect the parameter performance and can be well used for high-precision positioning, bringing many benefits to coupling and process batch production.

[0089] Another embodiment of the present invention further provides a method for bonding positioning glass to an optical fiber array. Based on the above-mentioned bonding device for bonding positioning glass to an optical fiber array, the bonding method specifically includes the following steps:

[0090] S1: Install the bonding structure 2, EVA cotton 4, UV curing structure 5 and backing plate 6 on the bottom plate 1, adjust the positioning component 23, the first spring pressing component 24 and the second spring pressing component 25, and open the clamp component 22;

[0091] S2: Push open the second spring pressing assembly 25 and place the optical fiber array 3 so that the optical fiber array 3 is close to the positioning assembly 23, and the other end of the optical fiber array 3 is fixed on the EVA cotton 4;

[0092] S3: Loosen the second spring pressing assembly 25 so that the second spring pressing assembly 25 presses against the optical fiber array 3 and fits on the other side of the positioning assembly 23;

[0093] S4: Place the positioning glass 7 on the top surface of the optical fiber array 3, and use tweezers to push against the optical fiber array 3, pull up the first spring pressing assembly 24, drive the pressure foot 2441 to lift and rotate 90° to the top of the positioning glass 7;

[0094] S5: Release the first spring pressing assembly 24 to press the pressure foot 2441 downward onto the positioning glass 7;

[0095] S6: Lock the clamp assembly 22 and complete the operation.

[0096] The specific operation process is as follows:

[0097] First, install the fitting structure 2, EVA cotton 4, UV curing structure 5 and pad 6 on the base plate 1, adjust the positioning component 23, the first spring pressing component 24 and the second spring pressing component 25 of the fitting structure 2, place one end of the connector of the optical fiber array 3 between the positioning component 23, the first spring pressing component 24 and the second spring pressing component 25, push the second spring pressing component 25 outward, and through the compression of the second spring 253, the connector end of the optical fiber array 3 can be pressed against the side of the positioning component 23, loosen the second spring pressing component 25, so that the second spring pressing component 25 side is pressed against the optical fiber array 3 and fits on the other side of the positioning component 23; pull up the first spring pressing component 24, drive the presser foot 2441 to lift and rotate 90° to the top of the positioning glass 7, after positioning the positioning glass 7, loosen the first spring pressing component 24, so that the presser foot 2441 can be pressed down onto the positioning glass 7, and the other end of the optical fiber array 3 is fixed on the EVA cotton 4,

[0098] A set of fixtures is used to achieve this high-precision fitting. The fixture has FA fixing slots. A spring assembly is used on the left side to apply pressure to make the FA close to one side. A countersunk slot is used at the front end to fix the distance between the FA end faces, thereby achieving repeatable positioning of the FA. The FA on the left side can be adjusted to handle FAs of various sizes at the same time, saving costs.

[0099] The first spring clamping assembly 24 uses a 7-shaped pressure foot 2441 to position the glass sheet, and the pressure foot 2441 can be adjusted back and forth. After being installed in place under the two-dimensional measuring instrument, an installation accuracy of 0.05mm can be achieved. The pressure foot 2441 has a stepped notch, which can limit the distance between the pressure foot 2441 and the optical fiber array 3 to 0.1mm. The front-to-back distance can also meet the accuracy requirements. The first spring clamping assembly 24 has a built-in positioning function and can change with the size of the optical fiber array 3. It is easy to operate, has good repeatability, and high positioning accuracy, and is convenient for UV fixation after adjusting the position.

[0100] In addition, the entire fixture is designed as an integral tray with EVA cotton 4 to fix the optical fiber array 3. In this embodiment, six optical fibers are made together to save curing time.

[0101] Although the present invention is disclosed as above, the scope of protection disclosed by the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A device for bonding positioning glass to an optical fiber array, for bonding positioning glass (7) to the top surface of an optical fiber array (3), wherein the optical fiber array (3) comprises a fiber core (31), a bottom groove seat (32) encapsulating one end of the fiber core (31), and a cover plate (33), wherein the cover plate (33) is adapted to cover the bottom groove seat (32), and the positioning glass (7) is bonded to a side of the bottom groove seat (32) facing away from the cover plate (33), characterized in that: The laminating device comprises: A bottom plate (1) having a backing plate (6) and a UV curing structure (5) provided on its surface; A plurality of fitting structures (2) are evenly distributed and arranged in parallel on the bottom plate (1), each of the fitting structures (2) comprises a first main body base (21) provided on one side of the bottom plate (1), a positioning assembly (23) for positioning one end of the optical fiber array (3) on the first main body base (21), a first spring pressing assembly (24), a second spring pressing assembly (25), and a clamp assembly (22), the positioning assembly (23) and the second spring pressing assembly (25) respectively fixing the bottom groove seat (32) from the left and right sides of the optical fiber array (3), the first spring pressing assembly (24) being adapted to press on the positioning glass (7) from the top of the bottom groove seat (32) to position the optical fiber array (3); EVA cotton (4), arranged on a side of the pad (6) away from the fitting structure (2), the EVA cotton (4) being suitable for pressing an end of the fiber core (31) away from the bottom groove seat (32) onto the pad (6); When the positioning assembly (23), the first spring pressing assembly (24) and the second spring pressing assembly (25) are suitable for attaching the positioning glass (7) to the bottom groove seat (32), the clamp assembly (22) is suitable for locking the other end of the fiber core (31) of the optical fiber array (3), and the UV curing structure (5) is suitable for curing a plurality of the positioning glasses (7) on the top of the corresponding optical fiber array (3).

2. The device for bonding positioning glass to an optical fiber array according to claim 1, wherein: The first main body base (21) is provided with a first elliptical hole (211), a first mounting groove (213) and a first sliding groove (215) in a vertical direction. The first mounting groove (213) and the first sliding groove (215) are respectively located on one side of the length direction of the first main body base (21) and close to the first elliptical hole (211). The first mounting groove (213) is suitable for mounting the positioning assembly (23) to limit the position of one side of the bottom groove seat (32); The first chute (215) is provided on the first main body base (21) along a length direction perpendicular to the first main body base (21), and the second spring pressing assembly (25) is suitable for being installed in the first chute (215) to realize the limitation of the other side of the bottom groove seat (32); The first elliptical hole (211) is suitable for installing the first spring pressing assembly (24) to press the positioning glass (7) onto the bottom groove seat (32).

3. The device for bonding positioning glass to an optical fiber array according to claim 2, wherein: The positioning assembly (23) includes a positioning plate (231) installed in the first installation groove (213) and a second locking member (232) threadedly connected to the positioning plate (231) and the first main body base (21). The positioning plate (231) includes a positioning plate body (2311) and a first step plate (2312) and a second step plate (2313) connected to one side of the positioning plate body (2311), the upper surfaces of the first step plate (2312) and the second step plate (2313) are flush with the positioning plate body (2311), the lower surfaces of the first step plate (2312) and the second step plate (2313) are provided with step surfaces, and there is a gap between the second step plate (2313) and the first step plate (2312).

4. The device for bonding positioning glass to an optical fiber array according to claim 3, wherein: The first spring pressing assembly (24) includes a first screw (241), a first spring (242) sequentially inserted into the first screw (241), an adjustment plate (243), a pressure plate (244) and an operating handle (245), wherein the first screw (241) is inserted into the first elliptical hole 211 of the bottom plate (1) and the first main body base (21), and the bottom ends of the first screw (241) and the first spring (242) are both located in the first elliptical hole (211). First adjustment holes (2431) are further provided on both sides of the adjustment plate (243), and the adjustment plate (243) is connected to the first main body base (21) through the first adjustment holes (2431); The pressure plate (244) is further provided with pressure feet (2441) at both ends of one side close to the positioning glass (7), and the pressure feet (2441) are suitable for pressing tightly on the positioning glass (7); The operating handle (245) is connected to the top end of the first screw (241). When the operating handle (245) is pulled upward, the first spring (242) presses the adjustment plate (243) and the pressure plate (244) to lift the pressure foot (2441) and rotate it to a certain angle to separate the pressure plate (244) from the positioning glass (7).

5. The device for bonding positioning glass to an optical fiber array according to claim 4, characterized in that: A positioning pin is also provided on the first main body base (21), and a first pin hole (2442) is provided on the side of the pressure plate (244) away from the positioning glass (7). The positioning pin is suitable for being inserted into the first pin hole (2442) so that one end of the pressure plate (244) can rotate around the positioning pin to adjust the position angle of the pressure plate (244).

6. The device for bonding positioning glass to an optical fiber array according to claim 4, characterized in that: The second spring pressing assembly (25) comprises a sliding groove body (251) suitable for being placed in the first sliding groove (215), a second screw rod (252) horizontally inserted into the sliding groove body (251), a second spring (253) sleeved on the second screw rod (252), a cover plate (254) and a push plate (255) covering the sliding groove body (251). The cover plate (254) includes a cover plate body (2541), a second slide groove (2542) is provided on the cover plate body (2541) at the first slide groove (215), and the push plate (255) is suitable for being connected in the second slide groove (2542).

7. The device for bonding positioning glass to an optical fiber array according to claim 6, wherein: A second adjustment hole (2543) is provided in the second sliding groove (2542), and a third locking member (256) connects the push plate (255) and the cover plate (254) through the second adjustment hole (2543), and the bottom end of the third locking member (256) is connected to the second screw rod (252); When the push plate (255) is pushed, the third locking member (256) is adapted to drive the second screw rod (252) to move horizontally, thereby compressing the second spring (253), and the sliding groove body (251) moves away from the positioning glass (7); when the push plate (255) is released, the second spring (253) returns to its original state, thereby causing the top pressure plate of the sliding groove body (251) to press against the other side of the positioning glass (7).

8. The device for bonding positioning glass to an optical fiber array according to any one of claims 1 to 7, characterized in that: The clamp assembly includes a hinge seat (221) and a first clamp seat (222) installed on the first main body base (21), a second clamp seat (223) hinged on the hinge seat (221), and a first locking member (224), wherein the second clamp seat (223) is suitable for flipping downward and closing with the first clamp seat (222), and the first locking member (224) is suitable for connecting the second clamp seat (223) and the first clamp seat (222) to clamp the fiber core (31) between the second clamp seat and the first clamp seat.

9. The device for bonding positioning glass to an optical fiber array according to claim 8, wherein: Handles are also provided on both sides of the bottom plate (1) in the length direction.

10. A method for bonding positioning glass to an optical fiber array, based on the device for bonding positioning glass to an optical fiber array according to any one of claims 4 to 9, characterized in that: The laminating method specifically comprises the following steps: S1: Install the laminating structure (2), EVA cotton (4), UV curing structure (5) and backing plate (6) on the bottom plate (1), adjust the positioning component (23), the first spring pressing component (24) and the second spring pressing component (25), and open the clamping component (22); S2: Pushing the second spring pressing component (25) and placing the optical fiber array (3) so that the optical fiber array (3) is closely against the positioning component (23), and the other end of the optical fiber array (3) is fixed on the EVA cotton (4); S3: Loosening the second spring pressing assembly (25) so that the second spring pressing assembly (25) pushes against the optical fiber array (3) and fits against the other side of the positioning assembly (23); S4: Place the positioning glass (7) on the top surface of the optical fiber array (3), and use tweezers to push against the optical fiber array (3), pull up the first spring pressing assembly (24), and drive the pressure foot (2441) to lift and rotate 90 degrees to the top of the positioning glass (7); S5: Loosening the first spring pressing assembly (24) to allow the presser foot (2441) to press down onto the positioning glass (7); S6: Lock the clamp assembly (22) and complete the operation.

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