Ferrule and optical fiber glue dispensing and curing fixture and its use method
By designing a fixture for dispensing and curing the ferrule and optical fiber, and using a slide rail and a rotation module combined with camera monitoring, precise adjustment of the length and inclination direction of the exposed ferrule end of the optical fiber is achieved, solving the problem of difficult control of existing fixtures and ensuring effective fixation of the optical fiber and the ferrule.
Patent Information
- Application Number
- CN202310167314.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-02-27
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2043-02-27
AI Technical Summary
Existing tooling fixtures make it difficult to achieve precise control of the length of the exposed fiber ferrule end and the inclination angle of the fiber end face, especially in fiber jumper applications for high-power semiconductor lasers.
A ferrule and optical fiber dispensing and curing fixture was designed, which included a fixture base, a slide rail, a camera module, a ferrule rotation table and an optical fiber rotation module. The optical fiber rotation table was adjusted by moving and rotating the slide rail, and combined with camera monitoring, the length and inclination angle of the exposed ferrule end of the optical fiber could be precisely adjusted, and curing was performed using an ultraviolet curing lamp.
It achieves precise control over the length of the exposed fiber ferrule end and the inclination angle of the fiber end face, ensuring the effective fixation of the fiber and the ferrule, and adapting to the fiber coupling requirements of different application scenarios.
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Figure CN116174263B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of tooling fixtures, and in particular to a tooling fixture for ferrule and optical fiber glue dispensing and curing, and a method for using the tooling fixture. Background Art
[0002] Fiber optic connection technology is divided into two categories: permanent connections, often referred to as fixed joints or dead joints; and removable, removable connections, which require the use of fiber optic connectors. Fiber optic connectors are primarily used for non-permanent, fixed connections between devices, between devices and instruments, between devices and optical fibers, and between optical fibers. They are the most widely used and most widely used basic passive components in optical communication systems. Fiber optic connectors based on ceramic ferrules have rapidly developed due to the excellent thermal compatibility of ceramic materials with quartz optical fibers and their stable physical and chemical properties.
[0003] During the coupling process between optical fibers and optical devices, in order to prevent the laser signal generated by the transmitting device from reflecting back into the optical device through the end face of the optical fiber and causing certain damage to the optical device, the end face of the optical fiber is usually manufactured with a certain tilt angle. This tilt structure of the end face changes the reflection angle of the back reflection light to prevent the back reflection light from affecting the optical device. For optical fibers with tilted end faces, the direction of the fiber end face tilt angle needs to be appropriately adjusted for specific application scenarios (when coupling optical fibers with different optical devices) to achieve the best coupling effect between the optical fiber and the optical device.
[0004] The tooling used in the fiber optic patch cords for high-power semiconductor lasers currently on the market is generally a single-hole ferrule design, including devices such as clamps, UV glue curing lamps and translation stages. The tooling design is relatively simple. The existing tooling can usually only allow the optical fiber to pass through the ferrule, and then the optical fiber and the ferrule are glued and cured. It is difficult to meet the requirements of actual application scenarios for the length of the optical fiber exposed at the end of the ferrule and the inclination angle of the optical fiber end face.
[0005] In view of this, overcoming the defects of the prior art is an urgent problem to be solved in this technical field. Summary of the Invention
[0006] The technical problem to be solved by the present invention is how to efficiently and accurately control the exposed length of the optical fiber and the inclination angle of the optical fiber end face while ensuring that the optical fiber is accurately inserted into the ferrule.
[0007] The present invention adopts the following technical solutions:
[0008] In the first aspect, the present invention proposes a ferrule and optical fiber dispensing and curing fixture, comprising a fixture base 1, a first slide rail 2, a first camera module 3, a ferrule rotation platform 4 and an optical fiber rotation module 5, wherein the optical fiber rotation module 5 includes a first optical fiber clamp 51, a spiral fine motion component 52 and an optical fiber rotation platform 53;
[0009] The first slide rail 2 is transversely arranged on the tooling base 1, and the ferrule rotation platform 4 and the optical fiber rotation module 5 are sequentially arranged on the first slide rail 2, wherein the optical fiber rotation module 5 can move axially along the first slide rail 2, and the lens of the first camera module 3 is arranged directly above the ferrule rotation platform 4 to facilitate monitoring the length of the optical fiber exposed at the end of the ferrule 6 and the direction of the inclination angle of the optical fiber end face;
[0010] A hole is provided at the center of the ferrule rotating platform 4, the size of which matches the outer size of the ferrule 6, and the ferrule 6 is disposed in the hole; the first optical fiber clamp 51 is disposed on the spiral fine motion assembly 52 along the axial direction of the first slide rail 2, the spiral fine motion assembly 52 is disposed on the first slide rail 2, and the optical fiber rotating platform 53 is disposed on the spiral fine motion assembly 52, and the line connecting the first optical fiber clamp 51 and the hole is parallel to the first slide rail 2;
[0011] One end of the optical fiber passes through the spiral micro-motion assembly 52, the first optical fiber clamp 51 and the core 6 in sequence, and the optical fiber is clamped by the first optical fiber clamp 51. The optical fiber rotation module 5 is adjusted to drive the optical fiber to move axially along the first slide rail 2, and the optical fiber rotation table 53 is rotated to drive the inclination angle of the optical fiber end face to rotate to the first preset position, so as to facilitate the adjustment of the length of the optical fiber exposed at the end of the core 6 and the direction of the inclination angle of the optical fiber end face.
[0012] Preferably, it further includes a second slide rail 7, and the first camera module 3 includes a first camera 31, a first connecting rod 32, a second connecting rod 33 and a first sliding platform 34;
[0013] The second slide rail 7 is vertically arranged at a second preset position of the tooling base 1, the first camera 31 is arranged on the second slide rail 7, the first sliding platform 34 is axially slidable on the second slide rail 7, one end of the first connecting rod 32 is vertically arranged on the first sliding platform 34, the other end of the first connecting rod 32 is connected to one end of the second connecting rod 33, and the other end of the second connecting rod 33 is connected to the first camera 31;
[0014] The first camera 31 is arranged parallel to the second slide rail 7 and directly above the line passing through the ferrule rotating platform 4. The first sliding platform 34 moves along the second slide rail 7 to drive the lens of the first camera 31 to move directly above the ferrule rotating platform 4.
[0015] Preferably, the ferrule 6 is a single-hole ferrule or a multi-hole ferrule;
[0016] When the ferrule 6 is a single-hole ferrule, the fixture is adapted to a single optical fiber, the optical fiber rotation module 5 is adjusted to drive the optical fiber to move axially along the first slide rail 2, and the optical fiber rotation platform 53 is rotated to drive the optical fiber end face inclination angle to a first preset position, so as to facilitate adjustment of the optical fiber exposed length and the direction of the optical fiber end face inclination angle;
[0017] When the ferrule 6 is a multi-hole ferrule, the fixture is adapted to the optical fiber array, and the fixture also includes a second camera module 8, which is arranged on the first slide rail 2, and the lens of the second camera module 8 is aligned with the end face of the ferrule rotating table 4. The relative position between the single optical fibers in the optical fiber array is monitored by the second camera module 8, so as to adjust the length of the exposed ferrule 6 end of each optical fiber in the optical fiber array and the inclination angle of the optical fiber end face to the preset requirements.
[0018] Preferably, the second camera module 8 includes a second camera 81, a second sliding platform 82 and a first support frame 83;
[0019] The first support frame 83 is set on the second sliding platform 82, and the second camera 81 is set on the first support frame 83. The first support frame 83 raises the lens of the second camera 81 so that the lens of the second camera 81 is aligned with the end surface of the ferrule rotating platform 4.
[0020] Preferably, it further comprises an ultraviolet curing lamp module 9 and a third slide rail 10, wherein the ultraviolet curing lamp module 9 comprises an ultraviolet curing lamp 91, a manipulator 92 and a third sliding platform 93;
[0021] The third slide rail 10 is disposed on the tooling base 1 and is parallel to the second slide rail 7. The third sliding platform 93 is disposed on the third slide rail 10 so as to slide axially along the third slide rail 10. One end of the manipulator 92 is disposed on the third sliding platform 93, and the other end of the manipulator 92 is provided with the UV curing lamp 91.
[0022] The third sliding platform 93 moves along the third slide rail 10 to drive the UV curing lamp 91 on the manipulator 92 to move to a third preset position, and adjusts the manipulator 92 to align the lens of the UV curing lamp 91 with the area where the UV glue is applied to the optical fiber, so as to fix the optical fiber to the core 6.
[0023] Preferably, it also includes a second optical fiber clamp 11 and a second support frame 12, the second support frame 12 is arranged on the first slide rail 2 between the core rotation platform 4 and the optical fiber rotation module 5, the second optical fiber clamp 11 is arranged on the second support frame 12, and the second support frame 12 lifts the second optical fiber clamp 11 so that the first optical fiber clamp 51, the second optical fiber clamp 11 and the core 6 are located on the same axis.
[0024] Preferably, it further includes a third support frame 13, a fourth support frame 14 and a fourth sliding platform 15;
[0025] The fourth sliding platform 15 is arranged on the first slide rail 2 between the first camera module 3 and the second support frame 12, the third support frame 13 is arranged on the fourth sliding platform 15, and the ferrule rotating platform 4 is arranged on the third support frame 13. The third support frame 13 raises the ferrule rotating platform 4 so that the end face of the ferrule rotating platform 4 is aligned with the lens of the second camera 81;
[0026] The fourth support frame 14 is arranged on the spiral fine motion assembly 52 , and the optical fiber rotation platform 53 is arranged on the fourth support frame 14 . The fourth support frame 14 lifts the optical fiber rotation platform 53 to ensure that the first optical fiber clamp 51 is flush with the ferrule 6 in the hole.
[0027] Preferably, the spiral fine motion assembly 52 includes a moving block 521, a connecting block 522, a fine motion shaft 523, a spring 524, a thimble 525 and a fixed block 526, wherein the fine motion shaft 523 includes an adjusting knob 5231 and an adjusting rod 5232;
[0028] The movable block 521 is arranged on the first slide rail 2 and can move axially along the first slide rail 2. One end of the connecting block 522 is connected to the side surface of the movable block 521. The other end of the connecting block 522 is provided with a threaded hole along the axial direction of the first slide rail 2. One end of the adjusting rod 5232 is fixed to the adjusting knob 5231. The outer wall of the other end of the adjusting rod 5232 is provided with an external thread. The external thread of the adjusting rod 5232 matches the threaded hole. The other end of the adjusting rod 5232 is arranged in the threaded hole.
[0029] The fixing block 526 is arranged on the tooling base 1, the ejector pin 525 is arranged on the fixing block 526, and the ejector pin 525 and the adjusting rod 5232 are always in the same straight line; one end of the spring 524 is arranged on the fixing block 526, the other end of the spring 524 is arranged on the connecting block 522, and the spring 524 is arranged axially along the first slide rail 2.
[0030] In a second aspect, relative to the ferrule and optical fiber dispensing and curing fixture of the first aspect, the present invention further provides a method for using the ferrule and optical fiber dispensing and curing fixture. The method is applied to the ferrule and optical fiber dispensing and curing fixture of the first aspect, and the method includes:
[0031] Pass one end of the optical fiber through the optical fiber rotating platform 53 and the ferrule 6 in the hole of the ferrule rotating platform 4 in sequence, and fix the optical fiber by the first optical fiber clamp 51;
[0032] The moving spiral fine motion assembly 52 drives the optical fiber to move axially along the first slide rail 2. After the first camera 31 monitors the preset length of the optical fiber exposed from the end of the ferrule 6, the adjusting knob 5231 is rotated to make the adjusting rod 5232 contact the ejector pin 525.
[0033] The optical fiber rotating platform 53 is rotated to rotate the optical fiber. When the first camera 31 monitors that the inclination angle of the optical fiber end face is in a preset direction, the rotation of the optical fiber rotating platform 53 is stopped.
[0034] The optical fiber is fixed by using the second optical fiber clamp 11 , and UV glue is applied to the connection between the optical fiber and the ferrule 6 , and the UV glue is cured by using the UV curing lamp 91 .
[0035] Preferably, when the ferrule 6 is a multi-hole ferrule, the fixture is adapted to the optical fiber array, and also includes adjusting the length of each optical fiber in the optical fiber array exposed at the end of the ferrule 6 and the inclination angle of the optical fiber end face, and after the length of each optical fiber exposed at the end of the ferrule 6 and the inclination angle of the optical fiber end face are adjusted to the preset requirements, they are fixed with ultraviolet glue.
[0036] Compared with the prior art, the beneficial effect of the embodiment of the present invention is that after the present invention passes one end of the optical fiber through the optical fiber rotation table 53 and the ferrule 6 in the hole of the ferrule rotation table 4 in turn, the optical fiber rotation table 53 is driven to rotate by rotating the spiral micro-motion component 52, and moves axially along the first slide rail 2. The length of the end of the optical fiber exposed to the ferrule 6 and the inclination angle direction of the optical fiber end face are monitored by the first camera 31, thereby realizing precise adjustment of the length of the end of the optical fiber exposed to the ferrule 6 and the inclination angle direction of the optical fiber end face. BRIEF DESCRIPTION OF THE DRAWINGS
[0037] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.
[0038] Figure 1 This is a schematic diagram of the overall structure of a ferrule and optical fiber dispensing and curing fixture provided by the present invention;
[0039] Figure 2 This is a schematic diagram of the position distribution of a ferrule and an optical fiber dispensing and curing fixture provided by the present invention;
[0040] Figure 3 This is a schematic structural diagram of an optical fiber rotating table for a ferrule and an optical fiber dispensing and curing fixture provided by the present invention;
[0041] Figure 4 This is a schematic diagram of the connection structure between the optical fiber rotating table and the first optical fiber clamp of the ferrule and optical fiber dispensing and curing fixture provided by the present invention.
[0042] Figure 5 This is a disassembled parts diagram of the internal structure of the optical fiber rotation table of the ferrule and optical fiber dispensing and curing fixture provided by the present invention;
[0043] Figure 6 This is a schematic structural diagram of a first camera module of a ferrule and optical fiber dispensing and curing fixture provided by the present invention;
[0044] Figure 7 This is a structural diagram of a ferrule and a first optical fiber clamp and a second optical fiber clamp of an optical fiber dispensing and curing fixture provided by the present invention working together to complete optical fiber adjustment;
[0045] Figure 8 This is a schematic structural diagram of a second camera module of a ferrule and optical fiber dispensing and curing fixture provided by the present invention;
[0046] Figure 9 This is a schematic diagram of a ferrule and optical fiber dispensing and curing fixture provided by the present invention using a second camera to monitor an optical fiber array;
[0047] Figure 10 This is a schematic diagram of a ferrule and optical fiber dispensing and curing fixture provided by the present invention using a second camera to monitor the exposed length of an optical fiber array;
[0048] Figure 11 This is a schematic structural diagram of a UV curing lamp module of a ferrule and optical fiber dispensing and curing fixture provided by the present invention;
[0049] Figure 12 This is a schematic structural diagram from a first perspective of a ferrule and optical fiber glue dispensing and curing fixture provided by the present invention;
[0050] Figure 13 This is a schematic diagram of the structure of a spiral micro-motion assembly of a ferrule and an optical fiber dispensing and curing fixture provided by the present invention;
[0051] Figure 14 This is a schematic diagram of the micro-motion axis structure of a ferrule and optical fiber dispensing and curing fixture provided by the present invention;
[0052] Figure 15 This is a flow chart of a method for using a ferrule and optical fiber glue dispensing and curing fixture provided by the present invention;
[0053] Wherein, the reference numerals:
[0054] 1- tooling base; 2- first slide rail; 3- first camera module; 31- first camera; 32- first connecting rod; 33- second connecting rod; 34- first sliding displacement stage; 4- ferrule rotation stage; 5- fiber rotation module; 51- first fiber clamp; 52- spiral micro-motion assembly; 521- moving block; 522- connecting block; 523- micro-motion shaft; 5231- adjusting knob; 5232- adjusting rod; 524- spring; 525- ejector pin; 52 6-fixed block; 53-fiber optic rotation table; 6-insert; 7-second slide rail; 8-second camera module; 81-second camera; 82-second sliding displacement stage; 83-first support frame; 9-UV curing lamp module; 91-UV curing lamp; 92-manipulator; 93-third sliding displacement stage; 10-third slide rail; 11-second fiber optic clamp; 12-second support frame; 13-third support frame; 14-fourth support frame; 15-fourth sliding displacement stage. DETAILED DESCRIPTION
[0055] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0056] In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "upper", "lower", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.
[0057] In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0058] Embodiment 1:
[0059] Embodiment 1 of the present invention provides a fixture for dispensing glue and curing a ferrule and an optical fiber. Figure 1-2 , including a tooling base 1, a first slide rail 2, a first camera module 3, a ferrule rotation platform 4 and an optical fiber rotation module 5, wherein the optical fiber rotation module 5 includes a first optical fiber clamp 51, a spiral fine motion component 52 and an optical fiber rotation platform 53;
[0060] The first slide rail 2 is transversely arranged on the tooling base 1, and the ferrule rotation platform 4 and the optical fiber rotation module 5 are sequentially arranged on the first slide rail 2, wherein the optical fiber rotation module 5 can move axially along the first slide rail 2, and the lens of the first camera module 3 is arranged directly above the ferrule rotation platform 4 to facilitate monitoring the length of the optical fiber exposed at the end of the ferrule 6 and the direction of the inclination angle of the optical fiber end face;
[0061] A hole is provided at the center of the ferrule rotating platform 4, the size of which matches the outer size of the ferrule 6, and the ferrule 6 is disposed in the hole; the first optical fiber clamp 51 is disposed on the spiral fine motion assembly 52 along the axial direction of the first slide rail 2, the spiral fine motion assembly 52 is disposed on the first slide rail 2, and the optical fiber rotating platform 53 is disposed on the spiral fine motion assembly 52, and the line connecting the first optical fiber clamp 51 and the hole is parallel to the first slide rail 2;
[0062] One end of the optical fiber passes through the spiral micro-motion assembly 52, the first optical fiber clamp 51 and the core 6 in sequence, and the optical fiber is clamped by the first optical fiber clamp 51. The optical fiber rotation module 5 is adjusted to drive the optical fiber to move axially along the first slide rail 2, and the optical fiber rotation table 53 is rotated to drive the inclination angle of the optical fiber end face to rotate to the first preset position, so as to facilitate the adjustment of the length of the optical fiber exposed at the end of the core 6 and the direction of the inclination angle of the optical fiber end face.
[0063] like Figure 1 and Figure 2As shown, a hole is provided at the center of the ferrule rotating platform 4 in the fixture of the embodiment of the present invention (the direction of the hole is the axial direction of the first slide rail 2), the outer dimensions of the ferrule 6 match the inner dimensions of the hole, and the ferrule 6 is fixed in the hole along the axial direction of the first slide rail 2 (the axial direction of the first slide rail 2 refers to the direction in which other devices move back and forth along the first slide rail 2) (the ferrule 6 can be fixed in the hole by, but not limited to, magnetic adsorption). The optical fiber rotation module 5 includes a first optical fiber clamp 51, a spiral micro-motion assembly 52, and an optical fiber rotating platform 53. After one end of the optical fiber passes through the optical fiber rotating platform 53 and the ferrule 6 in the hole of the ferrule rotating platform 4 in sequence, the optical fiber can only rotate and move back and forth along the hole. A section of the optical fiber is clamped in the first optical fiber clamp 51 of the optical fiber rotation module 5, and the first optical fiber clamp 51 is fixed on the optical fiber rotation table 53, and the optical fiber rotation table 53 is fixed on the spiral fine-motion component 52. The spiral fine-motion component 52 is adjusted to move along the first slide rail 2, driving the optical fiber to move back and forth along the direction of the hole (the axial direction of the first slide rail 2). The ferrule 6 is fixed in the ferrule rotation table 4, so that the length of the optical fiber exposed at the end of the ferrule 6 changes, and then the first camera 31 is used to monitor the length of the optical fiber exposed at the end of the ferrule 6 and the inclination angle of the optical fiber end face, and then the length of the optical fiber exposed at the end of the ferrule 6 is adjusted to a preset length, and the inclination angle of the optical fiber end face is adjusted to a preset direction. The present invention sequentially passes one end of the optical fiber through the ferrule 6 in the hole of the optical fiber rotating table 53 and the ferrule rotating table 4, and then drives the optical fiber to rotate and move axially along the first slide rail 2 by rotating the spiral micro-motion component 52 of the optical fiber rotating table 53. The first camera 31 monitors the length of the end of the optical fiber exposed to the ferrule 6 and the direction of the inclination angle of the optical fiber end face, thereby achieving precise adjustment of the length of the end of the optical fiber exposed to the ferrule 6 and the direction of the inclination angle of the optical fiber end face. It is worth noting that the preset length of the optical fiber adjustment and the preset direction of the inclination angle of the optical fiber end face of the embodiment of the present invention are set according to actual needs. In addition, the adjustment of the optical fiber to the preset length and the adjustment of the optical fiber end face inclination angle to the preset rearward fixed position in the embodiment of the present invention correspond to the first preset position of the embodiment of the present invention.
[0064] The embodiment of the present invention also provides a method for connecting the optical fiber rotating platform 53 and the first optical fiber clamp 51, such as Figure 3-4 As shown, Figure 3 A schematic diagram showing the structure of the optical fiber rotating platform 53 is shown. Figure 4 The diagram shows the connection structure of the optical fiber rotating platform 53 and the first optical fiber clamp 51. The center of the optical fiber rotating platform 53 is a hollow structure and is provided with three mounting screws (see Figure 3 ), one end of the first optical fiber clamp 51 is provided with a mounting hole that matches the mounting screw, and the first optical fiber clamp 51 and the optical fiber rotating platform 53 are installed by matching the mounting screw with the mounting hole (see Figure 4 );like Figure 5The figure shows the internal structure of the fiber rotator 53. The left disk of the fiber rotator 53 is provided with a scale, and the right side is provided with six screws for adjusting the rotation of the fiber rotator 53. By rotating the screws, the fiber rotator 53 rotates together, which in turn rotates the first fiber clamp 51. The optical fiber is clamped in the first fiber clamp 51, which in turn drives the optical fiber to rotate. It is worth noting that the connection between the fiber rotator 53 and the first fiber clamp 51 and the rotation of the fiber rotator 53 in this embodiment of the present invention include, but are not limited to, the above-mentioned methods.
[0065] After one end of the optical fiber passes through the optical fiber rotation table 53 and the ferrule 6 in the hole of the ferrule rotation table 4 in sequence, the optical fiber rotation table 53 is driven to rotate by rotating the spiral micro-motion component 52, and to move axially along the first slide rail 2. The length of the end of the optical fiber exposed to the ferrule 6 and the inclination angle direction of the optical fiber end face are monitored by the first camera 31, thereby realizing precise adjustment of the length of the end of the optical fiber exposed to the ferrule 6 and the inclination angle direction of the optical fiber end face.
[0066] In order to illustrate the complete solution of the present invention, the specific details of the present invention are explained in detail below. Since the fixture of the embodiment of the present invention may cause the alignment of the first camera module 3 to deviate during long-term use or storage, in order to facilitate the adjustment of the position of the first camera 31, the lens of the adjusted first camera 31 is set directly above, so that the length of the end of the optical fiber exposed from the ferrule 6 and the direction of the inclination angle of the optical fiber end face can be monitored by the first camera 31, the embodiment of the present invention also includes a second slide rail 7, wherein the first camera module 3 includes a first camera 31, a first connecting rod 32, a second connecting rod 33 and a first sliding displacement platform 34;
[0067] The second slide rail 7 is vertically arranged at a second preset position of the tooling base 1, the first camera 31 is arranged on the second slide rail 7, the first sliding platform 34 is axially slidable on the second slide rail 7, one end of the first connecting rod 32 is vertically arranged on the first sliding platform 34, the other end of the first connecting rod 32 is connected to one end of the second connecting rod 33, and the other end of the second connecting rod 33 is connected to the first camera 31;
[0068] The first camera 31 is arranged parallel to the second slide rail 7 and directly above the line passing through the ferrule rotating platform 4. The first sliding platform 34 moves along the second slide rail 7 to drive the lens of the first camera 31 to move directly above the ferrule rotating platform 4.
[0069] like Figure 6As shown, the first sliding platform 34 of the embodiment of the present invention can be moved axially along the second slide rail 7. Adjusting the first sliding platform 34 drives the first camera 31 to move axially along the second slide rail 7 to ensure that the first camera 31 can be adjusted to be directly above the ferrule rotating platform 4. It is worth noting that the first connecting rod 32 and the second connecting rod 33 of the embodiment of the present invention can be connected in a rotating manner. The specific connection method that can be realized is as follows: Figure 6 As shown, one end of the second connecting rod 33 is provided with a socket, into which the other end of the first connecting rod 32 is inserted. The other end of the second connecting rod 33 is fixed to the first camera 31. The second connecting rod 33 and the first camera 31 can rotate around the first connecting rod 32 together, and then the first camera 31 is driven by the first sliding displacement platform. Through the combined action of the two, the lens of the first camera 31 can be accurately adjusted to be directly above the core rotating platform 4.
[0070] The ferrule 6 in existing fixtures is typically a single-hole ferrule design and is suitable for a single optical fiber. The fixture of the present invention, depending on the type of ferrule 6 (single-hole ferrule or multi-hole ferrule), is suitable not only for dispensing and curing fixtures designed with a single-hole ferrule and a single optical fiber, but also for dispensing and curing fixtures designed with a multi-hole ferrule and an array of optical fibers.
[0071] The ferrule 6 of the embodiment of the present invention is a single-hole ferrule or a multi-hole ferrule. When the ferrule 6 is a single-hole ferrule, the tooling fixture is adapted to a single optical fiber, and the optical fiber rotation module 5 is adjusted to drive the optical fiber to move axially along the first slide rail 2, and the optical fiber rotation table 53 is rotated to drive the optical fiber end face inclination angle to rotate to the first preset position, so as to facilitate the adjustment of the optical fiber exposed length and the direction of the optical fiber end face inclination angle.
[0072] For the application scenario in which the ferrule 6 in the present invention is a single-hole ferrule and is adapted to a single optical fiber, the single-hole ferrule is fixed to the hole of the ferrule rotating table 4, and a single optical fiber is inserted into the hole. Then, the length of the single optical fiber exposed at the end of the ferrule 6 and the inclination angle of the end face of the single optical fiber are adjusted. After adjusting to the position actually required, the single optical fiber and the ferrule 6 are cured and fixed.
[0073] When the ferrule 6 is a multi-hole ferrule, the fixture is adapted to the optical fiber array, and the fixture also includes a second camera module 8, which is arranged on the first slide rail 2, and the lens of the second camera module 8 is aligned with the end face of the ferrule rotating table 4. The relative position between the single optical fibers in the optical fiber array is monitored by the second camera module 8, so as to adjust the length of the exposed ferrule 6 end of each optical fiber in the optical fiber array and the inclination angle of the optical fiber end face to the preset requirements.
[0074] When the ferrule 6 of the embodiment of the present invention is a multi-hole ferrule, it is adapted to the fiber array. Each hole of the multi-hole ferrule corresponds to the insertion of an optical fiber, so the arrangement of the holes in the ferrule 6 corresponds to the arrangement of the optical fiber array. After each optical fiber in the optical fiber array is inserted into the hole of the multi-hole ferrule, the optical fibers on the side of the holes of the ferrule 6 inserted into the fiber array are constrained by the multi-hole ferrule and arranged together, while the optical fibers away from the side of the ferrule 6 are scattered. When adjusting the optical fiber array, it is adjusted one by one, specifically: select one of the optical fibers that needs to be adjusted, and clamp the optical fiber on the first optical fiber clamp 51, and adjust the length of the end of the optical fiber exposed from the ferrule 6 and the direction of the inclination angle of the optical fiber end face by the optical fiber rotation module 5. After the adjustment is completed, the adjusted optical fiber is clamped and fixed by the second optical fiber clamp 11, and then adjusted one by one, such as Figure 7 As shown, the first fiber clamp 51 and the second fiber clamp 11 work together (the first fiber clamp 51 mainly plays the role of clamping the optical fiber for adjustment, and the second fiber clamp 11 mainly plays the role of fixing the optical fiber that has been adjusted) to achieve the adjustment of the length of the end of the exposed ferrule 6 of all optical fibers in the optical fiber array and the direction of the inclination angle of the optical fiber end face. The preset requirements of the embodiment of the present invention are determined according to the requirements of the length of the end of the exposed ferrule 6 of each single optical fiber in the actual optical fiber array and the direction of the inclination angle of the optical fiber end face. It is worth noting that for the embodiment of the present invention, the first fiber clamp 51, the second fiber clamp 11 and the ferrule 6 are in the same straight line. For the optical fiber that has been adjusted, the second fiber clamp 11 is used to fix it; for the optical fiber that needs to be adjusted, it is necessary to pick up a section of the optical fiber at the second fiber clamp 11 to prevent the optical fiber from falling into the second fiber clamp 11, and then use the first fiber clamp 51 to clamp and fix the optical fiber for adjustment.
[0075] When the ferrule 6 of the embodiment of the present invention is a multi-hole ferrule, when the first camera 31 monitors from top to bottom along the vertical direction, the optical fiber in the upper layer easily blocks the optical fiber in the lower layer, making it impossible for the optical fiber in the lower layer to be monitored by the first camera 31. Based on this, Figure 8 As shown, the embodiment of the present invention is further provided with a second camera module 8, which includes a second camera 81, a second sliding platform 82 and a first support frame 83; the first support frame 83 is set on the second sliding platform 82, and the second camera 81 is set on the first support frame 83. The first support frame 83 raises the lens of the second camera 81 so that the lens of the second camera 81 is aligned with the end face of the ferrule rotating platform 4. The first camera 31 is used to monitor the length of each optical fiber exposed at the end of the ferrule 6 in the vertical direction and the inclination angle of the optical fiber end face, and the second camera 81 is used to monitor the positional relationship of each optical fiber at the end of the multi-hole ferrule (see Figure 9 ), plays an auxiliary role. For the first camera 31, when the optical fiber at the lower layer is blocked by the optical fiber at the upper layer, such as Figure 10 As shown, by rotating the ferrule rotating table 4, the optical fiber located in the lower layer is flipped to the upper layer (when the ferrule rotating table 4 is rotated, the optical fiber array is not clamped by the first optical fiber clamp 51), thereby realizing the adjustment of each optical fiber in the optical fiber array; in addition, for the situation where the inner optical fiber in the optical fiber array will be blocked no matter how the ferrule rotating table 4 is rotated, the embodiment of the present invention can first insert the optical fiber into the inner layer (no optical fiber is inserted into the outer layer), and then adjust the optical fibers in the inner layer one by one. After the adjustment of the inner optical fiber is completed, the inner optical fiber is fixed to the ferrule 6 by ultraviolet glue, and then the optical fiber is inserted into the outer layer, and the optical fibers inserted into the outer layer are adjusted one by one, thereby realizing the adjustment of the length of the end of each optical fiber exposed from the ferrule 6 and the inclination angle direction of the optical fiber end face of each optical fiber in the optical fiber array.
[0076] After the length of the optical fiber exposed from the end of the ferrule 6 and the inclination angle of the optical fiber end face are adjusted to the required position, the optical fiber needs to be fixed to the ferrule 6. Figure 11As shown, the embodiment of the present invention also includes a UV curing lamp module 9 and a third slide rail 10, the UV curing lamp module 9 includes a UV curing lamp 91, a manipulator 92 and a third sliding displacement platform 93; the third slide rail 10 is arranged on the tooling base 1, and the third slide rail 10 is parallel to the second slide rail 7, the third sliding displacement platform 93 can be axially slidably arranged on the third slide rail 10 along the third slide rail 10, one end of the manipulator 92 is arranged on the third sliding displacement platform 93, and the other end of the manipulator 92 is provided with the UV curing lamp 91; the third sliding displacement platform 93 moves along the third slide rail 10 to drive the UV curing lamp 91 on the manipulator 92 to move to a third preset position, and adjust the manipulator 92 to align the lens of the UV curing lamp 91 with the area where the UV glue is applied to the optical fiber, so as to fix the optical fiber to the ferrule 6. In an embodiment of the present invention, the third sliding platform moves along the third slide rail 10, thereby driving the ultraviolet curing lamp 91 to move along the axial direction of the third slide rail 10, and the ultraviolet curing lamp 91 is adjusted by the manipulator 92 so that the ultraviolet curing lamp 91 is aligned with the connection between the optical fiber and the core 6. It is worth noting that, in the embodiment of the present invention, after the optical fiber is inserted into the ferrule 6, a preliminary judgment is made based on the actual requirement of the length of the end of the optical fiber exposed from the ferrule 6, and ultraviolet glue is applied to the outer surface of the optical fiber in advance (the position of the ultraviolet glue is obtained based on the estimation to ensure that after the optical fiber is adjusted, the ultraviolet glue can adhere to the gap between the hole of the ferrule 6 and the optical fiber), and then the ultraviolet curing lamp 91 is used to cure the ultraviolet glue so as to fix the adjusted optical fiber and the ferrule 6; the manipulator 92 of the embodiment of the present invention can be, but is not limited to, a six-axis manipulator, and the six-axis manipulator is adjusted to accurately align the lens of the ultraviolet curing lamp 91 with the ultraviolet glue at the connection between the optical fiber and the ferrule 6. The six-axis manipulator belongs to the prior art and will not be described in detail here; in addition, the ultraviolet curing lamp 91 of the embodiment of the present invention is moved to the third preset position and set according to the actual situation to ensure that the lens of the ultraviolet curing lamp 91 is aligned with the connection between the optical fiber and the ferrule 6.
[0077] like Figure 12As shown, the embodiment of the present invention further includes a second optical fiber clamp 11 , a second support frame 12 , a third support frame 13 , a fourth support frame 14 and a fourth sliding platform 15 . The second support frame 12 is arranged on the first slide rail 2 between the core rotation platform 4 and the optical fiber rotation module 5, and the second optical fiber clamp 11 is arranged on the second support frame 12. The second support frame 12 lifts the second optical fiber clamp 11 so that the first optical fiber clamp 51, the second optical fiber clamp 11 and the core 6 are located on the same axis; the fourth sliding displacement platform 15 is arranged on the first slide rail 2 between the first camera module 3 and the second support frame 12, the third support frame 13 is arranged on the fourth sliding displacement platform 15, the core rotation platform 4 is arranged on the third support frame 13, and the third support frame 13 lifts the core rotation platform 4 so that the end face of the core rotation platform 4 is aligned with the lens of the second camera 81; the fourth support frame 14 is arranged on the spiral fine-motion assembly 52, and the optical fiber rotation platform 53 is arranged on the fourth support frame 14. The fourth support frame 14 lifts the optical fiber rotation platform 53 to ensure that the first optical fiber clamp 51 is flush with the core 6 in the hole. The first optical fiber clamp 51 of the embodiment of the present invention mainly serves to clamp and fix the optical fiber that needs to be adjusted, and the optical fiber on the first optical fiber clamp 51 is driven to move and rotate through the optical fiber rotation module 5, thereby realizing the adjustment of the optical fiber; the second optical fiber clamp 11 mainly serves to clamp the optical fiber that has been adjusted to prevent the optical fiber from moving after the adjustment is completed.
[0078] Next, the spiral fine motion assembly 52 of the embodiment of the present invention is explained in detail. Figure 13-14 As shown, the spiral fine-motion assembly 52 of the embodiment of the present invention includes a moving block 521, a connecting block 522, a fine-motion shaft 523, a spring 524, a pin 525 and a fixed block 526, wherein the fine-motion shaft 523 includes an adjusting knob 5231 and an adjusting rod 5232; the moving block 521 is arranged on the first slide rail 2 to be movable along the axial direction of the first slide rail 2, one end of the connecting block 522 is connected to the side surface of the moving block 521, and the other end of the connecting block 522 is provided with a threaded hole along the axial direction of the first slide rail 2, one end of the adjusting rod 5232 is fixed to the adjusting knob 5231, and the outer wall of the other end of the adjusting rod 5232 is provided with an external thread ( Figure 14(not shown), the external thread of the adjusting rod 5232 matches the threaded hole, and the other end of the adjusting rod 5232 is arranged in the threaded hole; the fixing block 526 is arranged on the tooling base 1, and the ejector pin 525 is arranged on the fixing block 526, and the ejector pin 525 and the adjusting rod 5232 are always in the same straight line; one end of the spring 524 is arranged on the fixing block 526, and the other end of the spring 524 is arranged on the connecting block 522, and the spring 524 is arranged axially along the first slide rail 2.
[0079] like Figure 13 and Figure 14 As shown, the fixed block 526 of the embodiment of the present invention is set on the tooling base 1, and the spring 524 and the ejector pin 525 are both arranged along the axial direction of the first slide rail 2. The moving block 521 in the spiral micro-motion assembly 52 is pushed to drive the optical fiber to move along the first slide rail 2, thereby stretching the spring 524, so that the spring 524 has a certain elastic force. When the length of the optical fiber exposed at the end of the ferrule 6 reaches the actual requirement, the adjusting rod 5232 is rotated so that the adjusting rod 5232 abuts against the ejector pin 525, thereby adjusting the length of the optical fiber exposed at the end of the ferrule 6 to the actual required length and fixing it (not moving axially along the first slide rail 2). It is worth noting that in the embodiment of the present invention, when the spring 524 is in a natural state, the length of the end of the optical fiber exposed to the ferrule 6 should be slightly larger than the actual required length (usually set to be several centimeters larger than the actual required length, and a range can be obtained by estimation so that when the spring 524 is in a natural state, the length of the end of the optical fiber exposed to the ferrule 6 falls within the estimated range). By adjusting the moving block 521 of the spiral micro-motion assembly 52, the optical fiber is moved along the first slide rail 2 and away from the second optical fiber clamp 11, thereby stretching the spring 524, and then fixing it by abutting against the ejector pin 525 through the adjusting rod 5232.
[0080] After the present invention passes one end of the optical fiber through the ferrule 6 in the holes of the optical fiber rotating table 53 and the ferrule rotating table 4 in turn, the optical fiber is driven to rotate and move axially along the first slide rail 2 by rotating the spiral micro-motion component 52 of the optical fiber rotating table 53, and the length of the end of the optical fiber exposed to the ferrule 6 and the inclination angle direction of the optical fiber end face are monitored by the first camera 31, thereby achieving precise adjustment of the length of the end of the optical fiber exposed to the ferrule 6 and the inclination angle direction of the optical fiber end face; in addition, the embodiment of the present invention is not only applicable to the dispensing and curing tooling designed with a single-hole ferrule and a single optical fiber, but also applicable to the dispensing and curing tooling designed with a multi-hole ferrule and an array optical fiber, so that the tooling fixture of the embodiment of the present invention has a wider range of uses and is suitable for more application scenarios.
[0081] Example 2:
[0082] Compared with the fixture for dispensing glue and curing the core and optical fiber in embodiment 1 of the present invention, embodiment 2 of the present invention further proposes a method for using the fixture for dispensing glue and curing the core and optical fiber, such as Figure 15 As shown, the method includes:
[0083] Step 201 : Pass one end of the optical fiber through the optical fiber rotating platform 53 and the ferrule 6 in the hole of the ferrule rotating platform 4 in sequence, and fix the optical fiber by the first optical fiber clamp 51 .
[0084] The optical fiber of the embodiment of the present invention adjusts the length of the end of the optical fiber exposed to the ferrule 6 and the direction of the inclination angle of the end of the ferrule 6 through the optical fiber rotating table 53. After the first optical fiber clamp 51 clamps and fixes the optical fiber, the first optical fiber clamp 51 rotates or moves axially along the first slide rail 2, which will drive the optical fiber to move accordingly. The embodiment of the present invention fixes the first optical fiber clamp 51 on the optical fiber rotating table 53 along the direction of the first slide rail 2 (an opening is provided at the center position of the optical fiber rotating table 53 so that the optical fiber can be fixed on the first optical fiber clamp 51 after passing through the optical fiber rotating table 53). After the ferrule 6 is fixed in the hole of the ferrule rotating table 4, the ferrule 6 cannot move axially along the first slide rail 2, and when the ferrule rotating table 4 is stationary, the ferrule 6 will not rotate. By driving the optical fiber to rotate or move axially along the first slide rail 2 by the optical fiber rotating table 53, the length of the end of the optical fiber exposed to the ferrule 6 and the direction of the inclination angle of the optical fiber end face can be adjusted.
[0085] Step 202: Move the spiral micro-motion assembly 52 to drive the optical fiber to move axially along the first slide rail 2. After the first camera 31 monitors that the optical fiber is exposed to a preset length of the end of the ferrule 6, rotate the adjustment knob 5231 to make the adjustment rod 5232 abut against the ejector pin 525; rotate the optical fiber rotation platform 53 to drive the optical fiber to rotate. After the first camera 31 monitors, stop rotating the optical fiber rotation platform 53.
[0086] After securing the optical fiber, the embodiment of the present invention adjusts the helical fine-motion assembly 52 and the optical fiber rotation stage 53 to move the optical fiber along the first slide rail 2 and rotate the optical fiber, thereby adjusting the length of the optical fiber exposed at the end of the ferrule 6 and the tilt angle of the optical fiber end face. The first camera 31 then monitors the length of the optical fiber exposed at the end of the ferrule 6 and the tilt angle of the optical fiber end face to ensure that the length and the tilt angle of the optical fiber end face meet actual requirements.
[0087] Step 203 : Fix the optical fiber with the second optical fiber clamp 11 , apply UV glue on the connection between the optical fiber and the ferrule 6 , and cure the UV glue with the UV curing lamp 91 .
[0088] After the embodiment of the present invention adjusts the optical fiber to a state that meets actual needs, the ultraviolet curing lamp 91 is used to cure the ultraviolet glue at the connection between the ferrule 6 and the optical fiber, and the ferrule 6 and the optical fiber are fixed. It is worth noting that when the ferrule 6 of the embodiment of the present invention is a multi-hole ferrule, the fixture is adapted to the optical fiber array, and also includes adjusting the length of each optical fiber exposed at the end of the ferrule 6 and the inclination angle of the optical fiber end face in the optical fiber array one by one. After the length of each optical fiber exposed at the end of the ferrule 6 and the inclination angle of the optical fiber end face are adjusted to the preset requirements, they are fixed with ultraviolet glue. The adjustment of each optical fiber in the optical fiber array and the method of fixing each optical fiber to the ferrule 6 by curing with ultraviolet glue have been explained in detail above and will not be repeated here.
[0089] 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 and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A fixture for dispensing and curing ferrules and optical fibers, characterized in that: It comprises a tooling base (1), a first slide rail (2), a first camera module (3), a core rotating platform (4) and an optical fiber rotating module (5), wherein the optical fiber rotating module (5) comprises a first optical fiber clamp (51), a spiral micro-motion component (52) and an optical fiber rotating platform (53); The first slide rail (2) is transversely arranged on the tooling base (1), and the ferrule rotating platform (4) and the optical fiber rotating module (5) are sequentially arranged on the first slide rail (2), wherein the optical fiber rotating module (5) can move axially along the first slide rail (2), and the lens of the first camera module (3) is arranged directly above the ferrule rotating platform (4) to facilitate monitoring the length of the optical fiber exposed at the end of the ferrule (6) and the direction of the inclination angle of the optical fiber end face; A hole is provided at the center of the ferrule rotating platform (4), the size of the hole matches the external size of the ferrule (6), and the ferrule (6) is arranged in the hole; the first optical fiber clamp (51) is arranged on the spiral micro-motion component (52) along the axial direction of the first slide rail (2), the spiral micro-motion component (52) is arranged on the first slide rail (2), the optical fiber rotating platform (53) is arranged on the spiral micro-motion component (52), and the connecting line between the first optical fiber clamp (51) and the hole is parallel to the first slide rail (2); One end of the optical fiber passes through the spiral micro-motion component (52), the first optical fiber clamp (51) and the ferrule (6) in sequence, and the optical fiber is clamped by the first optical fiber clamp (51), the optical fiber rotation module (5) is adjusted to drive the optical fiber to move axially along the first slide rail (2), and the optical fiber rotation table (53) is rotated to drive the optical fiber end face inclination angle to rotate to a first preset position, so as to achieve the adjustment of the length of the optical fiber exposed from the end of the ferrule (6) and the direction of the optical fiber end face inclination angle; The invention also includes a second optical fiber clamp (11) and a second support frame (12), wherein the second support frame (12) is arranged on the first slide rail (2) between the ferrule rotating platform (4) and the optical fiber rotating module (5), and the second optical fiber clamp (11) is arranged on the second support frame (12). For an optical fiber that has been adjusted, the second optical fiber clamp (11) is used to fix it; for an optical fiber that needs to be adjusted, a section of the optical fiber at the second optical fiber clamp (11) needs to be picked up to prevent the optical fiber from falling into the second optical fiber clamp (11).
2. The ferrule and optical fiber dispensing and curing fixture according to claim 1, characterized in that: It also includes a second slide rail (7), and the first camera module (3) includes a first camera (31), a first connecting rod (32), a second connecting rod (33) and a first sliding platform (34); The second slide rail (7) is vertically arranged at a second preset position of the tooling base (1), the first camera (31) is arranged on the second slide rail (7), the first sliding displacement platform (34) is axially slidable along the second slide rail (7) and arranged on the second slide rail (7), one end of the first connecting rod (32) is vertically arranged on the first sliding displacement platform (34), the other end of the first connecting rod (32) is connected to one end of the second connecting rod (33), and the other end of the second connecting rod (33) is connected to the first camera (31); The first camera (31) is arranged parallel to the second slide rail (7) and directly above the line passing through the ferrule rotating platform (4), and the first sliding displacement platform (34) moves along the second slide rail (7) to drive the lens of the first camera (31) to move directly above the ferrule rotating platform (4).
3. The fixture for dispensing and curing the ferrule and optical fiber according to claim 1, characterized in that: As stated; When the ferrule (6) is a single-hole ferrule, the fixture is adapted to a single optical fiber, the optical fiber rotation module (5) is adjusted to drive the optical fiber to move axially along the first slide rail (2), and the optical fiber rotation table (53) is rotated to drive the optical fiber end face inclination angle to rotate to a first preset position, so as to facilitate adjustment of the optical fiber exposed length and the optical fiber end face inclination angle direction; When the ferrule (6) is a multi-hole ferrule, the fixture is adapted to the optical fiber array, and the fixture further comprises a second camera module (8), the second camera module (8) being arranged on the first slide rail (2), the lens of the second camera module (8) being aligned with the end face of the ferrule rotating platform (4), and the relative positions between the single optical fibers in the optical fiber array are monitored by the second camera module (8), so as to adjust the length of the exposed ferrule (6) end of each optical fiber in the optical fiber array and the inclination angle of the optical fiber end face to the preset requirements.
4. The fixture for dispensing and curing the ferrule and optical fiber according to claim 3, characterized in that: The second camera module (8) comprises a second camera (81), a second sliding platform (82) and a first support frame (83); The first support frame (83) is arranged on the second sliding displacement platform (82), and the second camera (81) is arranged on the first support frame (83). The first support frame (83) raises the lens of the second camera (81) so that the lens of the second camera (81) is aligned with the end surface of the ferrule rotating platform (4).
5. The fixture for dispensing and curing the ferrule and optical fiber according to claim 2, characterized in that: It also includes a UV curing lamp module (9) and a third slide rail (10), wherein the UV curing lamp module (9) includes a UV curing lamp (91), a manipulator (92) and a third sliding platform (93); The third slide rail (10) is arranged on the tooling base (1), and the third slide rail (10) is parallel to the second slide rail (7). The third sliding displacement platform (93) is arranged on the third slide rail (10) so as to slide axially along the third slide rail (10). One end of the manipulator (92) is arranged on the third sliding displacement platform (93), and the other end of the manipulator (92) is provided with the ultraviolet curing lamp (91); The third sliding platform (93) moves along the third slide rail (10) to drive the ultraviolet curing lamp (91) on the manipulator (92) to move to a third preset position, and adjusts the manipulator (92) to align the lens of the ultraviolet curing lamp (91) with the area where the ultraviolet glue is applied to the optical fiber, so as to fix the optical fiber to the ferrule (6).
6. The fixture for dispensing and curing the ferrule and optical fiber according to claim 1, characterized in that: The second supporting frame (12) lifts the second optical fiber clamp (11) so that the first optical fiber clamp (51), the second optical fiber clamp (11) and the ferrule (6) are located on the same axis.
7. The fixture for dispensing and curing the ferrule and optical fiber according to claim 4, characterized in that: It also includes a third support frame (13), a fourth support frame (14) and a fourth sliding platform (15); The fourth sliding displacement platform (15) is arranged on the first slide rail (2) between the first camera module (3) and the second support frame (12), the third support frame (13) is arranged on the fourth sliding displacement platform (15), the ferrule rotating platform (4) is arranged on the third support frame (13), and the third support frame (13) raises the ferrule rotating platform (4) so that the end face of the ferrule rotating platform (4) is aligned with the lens of the second camera (81); The fourth support frame (14) is arranged on the spiral micro-motion component (52), and the optical fiber rotation platform (53) is arranged on the fourth support frame (14). The fourth support frame (14) lifts the optical fiber rotation platform (53) to ensure that the first optical fiber clamp (51) is flush with the ferrule (6) in the hole.
8. The fixture for dispensing and curing the ferrule and optical fiber according to claim 7, characterized in that: The spiral micro-motion assembly (52) comprises a moving block (521), a connecting block (522), a micro-motion shaft (523), a spring (524), a thimble (525) and a fixed block (526), wherein the micro-motion shaft (523) comprises an adjusting knob (5231) and an adjusting rod (5232); The moving block (521) is arranged on the first slide rail (2) so as to be movable along the axial direction of the first slide rail (2); one end of the connecting block (522) is connected to the side surface of the moving block (521); the other end of the connecting block (522) is provided with a threaded hole along the axial direction of the first slide rail (2); one end of the adjusting rod (5232) is fixed to the adjusting knob (5231); an external thread is provided on the outer wall of the other end of the adjusting rod (5232); the external thread of the adjusting rod (5232) matches the threaded hole; the other end of the adjusting rod (5232) is arranged in the threaded hole; The fixed block (526) is arranged on the tooling base (1), the ejector pin (525) is arranged on the fixed block (526), and the ejector pin (525) and the adjusting rod (5232) are always on the same straight line; one end of the spring (524) is arranged on the fixed block (526), the other end of the spring (524) is arranged on the connecting block (522), and the spring (524) is arranged axially along the first slide rail (2).
9. A method for using a ferrule and optical fiber glue curing fixture, characterized in that: The method of use is applied to the ferrule and optical fiber dispensing and curing fixture according to any one of claims 1 to 8, and the method comprises: Passing one end of the optical fiber through the ferrule (6) in the hole of the optical fiber rotating platform (53) and the ferrule rotating platform (4) in sequence, and fixing the optical fiber by a first optical fiber clamp (51); The moving spiral micro-motion component (52) drives the optical fiber to move axially along the first slide rail (2). After the first camera (31) monitors the preset length of the optical fiber exposed at the end of the ferrule (6), the adjusting knob (5231) is rotated to make the adjusting rod (5232) abut against the ejector pin (525); Rotating the optical fiber rotating platform (53) to drive the optical fiber to rotate, and stopping the rotation of the optical fiber rotating platform (53) after the first camera (31) monitors that the inclination angle of the optical fiber end face is in a preset direction; The optical fiber is fixed by using a second optical fiber clamp (11), ultraviolet glue is applied to the connection between the optical fiber and the ferrule (6), and the ultraviolet glue is cured by using an ultraviolet curing lamp (91).
10. The method for using the ferrule and optical fiber dispensing and curing fixture according to claim 9, characterized in that: When the ferrule (6) is a multi-hole ferrule, the fixture is adapted to the optical fiber array, and further comprises adjusting the length of each optical fiber in the optical fiber array that is exposed at the end of the ferrule (6) and the inclination angle of the optical fiber end face, and after the length of each optical fiber that is exposed at the end of the ferrule (6) and the inclination angle of the optical fiber end face are adjusted to the preset requirements, they are fixed using ultraviolet glue.
Citation Information
Patent Citations
Optical fiber ferrule end face detection equipment
CN218014257U
Precise positioning of optical fibers
EP0091738A2