CN117359478A - Optical fiber grinding process and grinding equipment thereof - Google Patents
Optical fiber grinding process and grinding equipment thereof Download PDFInfo
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- CN117359478A CN117359478A CN202311284291.7A CN202311284291A CN117359478A CN 117359478 A CN117359478 A CN 117359478A CN 202311284291 A CN202311284291 A CN 202311284291A CN 117359478 A CN117359478 A CN 117359478A
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- sheet
- clamping
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000011521 glass Substances 0.000 claims abstract description 73
- 238000005498 polishing Methods 0.000 claims abstract description 44
- 230000003287 optical effect Effects 0.000 claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 239000000835 fiber Substances 0.000 claims description 14
- 239000003292 glue Substances 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 7
- 229920002120 photoresistant polymer Polymers 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000007517 polishing process Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000003780 insertion Methods 0.000 abstract 1
- 230000037431 insertion Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 239000002002 slurry Substances 0.000 description 7
- 238000012681 fiber drawing Methods 0.000 description 6
- 101100491335 Caenorhabditis elegans mat-2 gene Proteins 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000003595 mist Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 3
- 239000000084 colloidal system Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
- B24B37/042—Lapping machines or devices; Accessories designed for working plane surfaces operating processes therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/0023—Other grinding machines or devices grinding machines with a plurality of working posts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/27—Work carriers
- B24B37/30—Work carriers for single side lapping of plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/34—Accessories
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention relates to an optical fiber grinding process and grinding equipment thereof, wherein the process comprises the following steps of S1, checking the surface of an insertion core; s2, clamping and fixing the insert core by using a clamp, grinding by using grinding equipment, wherein a glass pad is arranged on the grinding equipment, the clamp is arranged on the grinding equipment, and the end part of the insert core faces the glass pad; s3, installing a polishing sheet on the glass pad, and introducing polishing liquid into the polishing sheet; s4, the grinding equipment drives the glass cushion to drive the grinding sheet to rotate, and simultaneously drives the clamp to move downwards to grind until the end face of the ferrule is matched with the shape of the connector, so that the ferrule has good optical performance. The invention has the advantages of better light guiding performance and reduced optical loss during transmission.
Description
Technical Field
The invention relates to the technical field of optical fibers, in particular to an optical fiber grinding process and grinding equipment thereof.
Background
An optical fiber is a fiber made of glass or plastic, and is generally used as a light-conducting tool. In the information society of today, optical fiber is an important communication transmission medium, and the quality and performance of optical fiber directly affect the stability of communication and the speed of transmission. The optical fiber connector is a device for detachably connecting optical fibers, and can be divided into FC, SC, ST, LC, D, MU, MT and other connectors according to the structure of the connector.
The ferrule is an important component of the optical fiber connector. In the production of the pin, it is necessary to polish the end of the ferrule in a series to achieve good optical performance.
In the existing core insert grinding process, only the end face of the core insert is subjected to glue removal grinding or adopted, the ground end face of the core insert is poor in quality, the end face is easy to be damaged when the connectors are in physical butt joint, meanwhile, the optical loss in the use process of the optical fiber is high, and the product performance is influenced.
Disclosure of Invention
In order to solve the problem of poor quality of the end face of the conventional polished optical fiber, the invention provides an optical fiber polishing process and polishing equipment thereof, which have good light guiding performance and reduce light loss during transmission.
The invention provides an optical fiber grinding process, which adopts the following technical scheme:
an optical fiber grinding process comprising the steps of:
s1, checking the surface of the ferrule;
s2, clamping and fixing the insert core by using a clamp, grinding by using grinding equipment, wherein a glass pad is arranged on the grinding equipment, the clamp is arranged on the grinding equipment, and the end part of the insert core faces the glass pad;
s3, installing a polishing sheet on the glass pad, and introducing polishing liquid into the polishing sheet;
s4, the grinding equipment drives the glass cushion to drive the grinding sheet to rotate, and simultaneously drives the clamp to move downwards to grind until the end face of the ferrule is matched with the shape of the connector, so that the ferrule has good optical performance.
Preferably, the step S1 includes checking whether glue blocks remain on the surface of the insert core, checking whether the surface of the insert core is broken or not, and checking whether colloidal particles are full or not.
Through the technical scheme: and screening out qualified lock pins for grinding so as to ensure the grinding quality and prevent idle work.
Preferably, the polishing sheet comprises a photoresist removing polishing sheet, a coarse polishing sheet, a fine polishing sheet, a convex fiber polishing sheet and a polishing sheet, and the polishing sheets are sequentially replaced for polishing.
Through the technical scheme: the rubber removing grinding sheet, the coarse grinding sheet, the fine grinding sheet, the convex fiber grinding sheet and the polishing grinding sheet are sequentially replaced for grinding, and the end part of the insert core is enabled to have better optical performance through repeated grinding operations of different grinding sheets.
Preferably, the S4 includes:
s41, attaching a photoresist removing grinding sheet to the glass pad;
s42, introducing grinding fluid;
s43, driving the glass pad to rotate, wherein the rotating speed of the glass pad is between 90 and 110rpm, and the grinding time is between 30 and 60 seconds;
s44, repeating the steps S41 to S43, and using a coarse grinding sheet, wherein the rotating speed of the glass pad is between 110rpm and 130rpm, and the grinding time is between 30S and 60S;
s45, repeating S41 to S43, and using a fine grinding sheet, wherein the rotating speed of the glass pad is between 110rpm and 130rpm, and the grinding time is between 70S and 100S;
s46, repeating the steps S41 to S43, and using a convex fiber grinding sheet, wherein the rotating speed of the glass pad is 140rpm to 160rpm, and the grinding time is 120S to 150S;
s47, repeating S41 to S43, and polishing the glass pad by using a polishing sheet, wherein the rotating speed of the glass pad is between 120 and 140rpm, and the polishing time is between 30 and 50 seconds.
Through the technical scheme: during grinding, the photoresist-removing grinding sheet is attached to the glass pad, grinding liquid is introduced, the glass pad is driven to rotate, meanwhile, the clamp is driven to move downwards, the rotating speed of the glass pad is 100rpm, and the grinding time is 30-60 s; changing a coarse grinding sheet, and introducing a proper amount of clear water to ensure that the rotating speed of the glass pad is 120rpm and the grinding time is between 30s and 60 s; changing a fine grinding sheet, and introducing a proper amount of clear water to ensure that the rotating speed of the glass pad is 120rpm and the grinding time is between 70s and 100 s; changing the convex fiber grinding sheet, and introducing a proper amount of first fiber drawing slurry to enable the rotating speed of the glass pad to be 150rpm and the grinding time to be 120-150 s; the polishing sheet is replaced, a proper amount of first fiber drawing slurry is introduced, the rotating speed of the glass pad is 130rpm, and the polishing time is between 30s and 50s, so that the end part of the insert core is polished, the insert core can better exert optical performance, and the optical loss is reduced.
Preferably, after each of steps S43 to S47 is completed, the jig and the ferrule end are cleaned using a washer, and the residual moisture is air-dried.
Through the technical scheme: and after finishing grinding each time, the clamp and the end part of the ferrule are cleaned, so that the chip residue is prevented, and the grinding effect of the next step is influenced.
The second purpose of the invention is to provide a grinding device, which adopts the following technical scheme:
a grinding device comprises a grinding table, a glass pad rotatably arranged on the grinding table and a clamp arranged on the grinding table.
Through the technical scheme: during grinding, the insert core is arranged on the clamp, the grinding piece is arranged on the glass pad, the glass pad is driven to rotate, the clamp is driven to move downwards, the end part of the insert core is ground, after the end part of the insert core is finished, the glass pad stops rotating, the clamp is driven to reset, the insert core is taken out, and the end part of the insert core can be ground.
Preferably, the fixture comprises a chuck frame arranged on the grinding table and a clamping disc arranged on the chuck frame, chuck seats used for driving the chuck to move along the vertical direction are further arranged on the chuck frame in a moving mode, a plurality of clamping units are arranged at equal intervals along the circumferential direction of the clamping disc, each clamping unit comprises a through hole penetrating through the upper surface and the lower surface of the clamping disc, a sliding groove is formed in each clamping unit, a sliding block is in sliding fit with the sliding groove, a side hole is formed in one side of each sliding block, each side hole is communicated with each through hole, a fastening piece is arranged on each sliding block, and an elastic piece is arranged on each chuck, and is arranged opposite to each other.
Through the technical scheme: during grinding, the insert core penetrates through the through hole from one end of the clamping disc, the end part of the insert core extends out of the other end of the clamping disc, and the fastening rod extends into the through hole, so that the insert core is clamped and fixed through the combined action of the fastening piece and the elastic piece, the clamping disc can be driven through the movement of the clamping disc seat, and the end part of the insert core is ground.
Preferably, the fastening piece comprises a fastening buckle arranged on the clamping plate and a fastening rod with one end fixedly connected with the fastening buckle, the fastening rod penetrates through the side hole and is close to the through hole, when the fastening buckle is fastened, the fastening rod stretches into the through hole, and when the fastening buckle is released, the fastening rod is far away from the through hole.
Through the technical scheme: when the fastening piece is fastened, the fastening rod stretches into the through hole when the fastening piece is fastened, and when the fastening piece is released, the fastening rod is far away from the through hole, so that the lock pin is conveniently clamped or released.
Preferably, the clamping disc is internally provided with an adjusting component for adjusting the sliding block to be close to or far away from the through hole, the adjusting component comprises a chuck arranged in the clamping disc and an adjusting rod used for driving the chuck to rotate, the chuck is arranged in the clamping disc in a surrounding mode, one side of the chuck, which is close to the sliding block, is provided with threads, the bottom of the sliding block is matched with the threads on the chuck, the adjusting rod is positioned on one side, which is away from the sliding block, of the chuck, one end of the adjusting rod is provided with a rotating handle, the other end of the adjusting rod extends into the side wall of the clamping disc, one side, which is away from the sliding block, of the chuck is further provided with a first latch, the adjusting rod is sleeved with a connecting wheel, and the connecting wheel is provided with a second latch meshed with the first latch.
Through the technical scheme: when the clamping distance is adjusted, the rotating handle is rotated to enable the connecting wheel to rotate, and the connecting wheel drives the chuck to rotate, so that the sliding block is driven to be close to or far away from the through hole, and the distance that the fastening rod stretches into the through hole when the fastening buckle is adjusted. When the fine adjustment is carried out, the rotating handle is driven to rotate, so that the sliding block is close to or far away from the through hole, when the sliding block is close to, the fastening rod pushes the end part of the inserting core inwards, the elastic piece is slightly compressed, the end part of the inserting core inwards deviates to a certain extent, and burrs on one side of the end part of the inserting core can be eliminated by grinding again; when the sliding block is far away, the elastic piece ejects the lock pin outwards, so that the end part of the lock pin outwards deflects, and burrs on the other side of the end part of the lock pin can be eliminated by grinding again.
In summary, the present invention includes at least one of the following beneficial technical effects:
1. colloid on the end face of the insert core is removed through grinding for many times to different degrees, so that the end face of the insert core is smooth and even;
2. the convex fiber treatment enables the shape of the insert core to be matched with the connector better, so that the end face of the insert core is not easy to be damaged when the insert core is in physical butt joint with the connector, and the influence on the optical performance of a product is avoided;
3. the light splitting treatment can lead the permeability of the insert core to be better, and is beneficial to better playing optical performance.
Drawings
Fig. 1 is a flow chart of a first embodiment of the present invention.
Fig. 2 is a flowchart of step S3 in the first embodiment of the present invention.
Fig. 3 is a flowchart of step S4 in the first embodiment of the present invention.
Fig. 4 is a schematic overall structure of a second embodiment of the present invention.
Fig. 5 is a cross-sectional view of the overall structure of a second embodiment of the present invention.
Fig. 6 is an enlarged view at a in fig. 5.
Fig. 7 is a cross-sectional view of still another overall structure of the second embodiment of the present invention.
Fig. 8 is an enlarged view at B in fig. 7.
Reference numerals illustrate: 1. a grinding table; 2. a glass mat; 3. mounting a chuck; 4. a chuck holder; 41. a chuck base; 5. a chute; 6. a slide block; 7. a through hole; 8. a side hole; 9. an elastic member; 10. a fastening buckle; 11. a fastening rod; 12. a cushion pad; 13. a chuck; 14. an adjusting rod; 15. rotating the handle; 16. and the connecting wheel, 17 and the inserting core.
Detailed Description
Embodiment one:
an optical fiber polishing process, referring to fig. 1, comprises the steps of:
s1, firstly, checking the surface of the ferrule.
During inspection, no glue block residue is required to be ensured on the surface of the insert core, no collapse of the surface of the insert core is ensured, and the glue particles are full.
S2, clamping and fixing the insert core by using a clamp, grinding the end part of the insert core by using grinding equipment, wherein the glass pad 2 is arranged on the grinding equipment, and simultaneously, installing the clamp on the grinding equipment, and enabling the end part of the insert core to face the glass pad 2.
After completion, it is checked whether the ferrule is stably clamped on the jig to prevent shaking during the grinding process of the ferrule, thereby affecting the grinding effect.
S3, installing a polishing sheet on the glass pad 2, and introducing polishing liquid to the polishing sheet.
Referring to fig. 2, step S3 includes:
s31, spraying a small amount of water mist on the back surface of the gumming and grinding sheet by using a spray can, and adhering the water mist on the glass pad 2.
S32, rolling out bubbles between the gumming grinding piece and the glass pad 2 by using a push rod.
In this step, air bubbles between the gumming grinding sheet and the glass pad 2 are rolled out to prevent the ground end surface from being uneven due to the influence of the air bubbles when the ferrule is ground, thereby affecting the optical performance. Wherein, the grinding sheet comprises a photoresist removing grinding sheet, a coarse grinding sheet, a fine grinding sheet, a convex fiber grinding sheet and a polishing grinding sheet, and the grinding sheets are required to be replaced in sequence for grinding.
S4, driving the glass pad 2 to rotate through the grinding equipment, driving the grinding piece to rotate, and simultaneously driving the clamp to move downwards to grind the end part of the lock pin until the end part of the lock pin is matched with the shape of the connector, so that the lock pin has good optical performance.
Wherein, referring to fig. 3, step S4 includes:
and S41, attaching a photoresist removing grinding sheet to the glass pad 2.
S42, introducing grinding fluid which is clean water.
S43, driving the glass pad 2 to rotate through the grinding device, wherein the rotating speed of driving the glass pad 2 is between 90rpm and 110rpm, preferably 100rpm, and the grinding time is between 30S and 60S.
After the completion, whether the rubber particles on the end face of the insert core are removed completely or not needs to be observed, if the rubber particles are not removed completely, the grinding time is increased by 1s-20s according to the size of the rubber particles until the rubber particles are completely removed.
S44, repeating the steps S41 to S43, and using the rough grinding sheet, driving the rotation speed of the glass mat 2 between 110rpm and 130rpm, preferably 120rpm, and grinding for 30S to 60S.
After completion, it is checked whether the end of the ferrule is ground to a desired length.
S45, repeating the steps S41 to S43, and using a fine grinding sheet, driving the glass mat 2 at a rotation speed of 110rpm to 130rpm, preferably 120rpm, for a grinding time of 70S to 100S.
After completion, it is detected whether the end of the ferrule is fine and smooth, and has no protruding rough surface.
S46, repeating the steps S41 to S43, wherein a convex fiber polishing sheet is used, the polishing liquid is first fiber drawing slurry, the rotating speed of the glass mat 2 is 140rpm to 160rpm, preferably 150rpm, and the polishing time is 120S to 150S.
After completion, it is checked whether the shape of the end portion of the optical fiber meets the requirements, and whether burrs exist on the end portion of the optical fiber, so that the ferrule corresponds to connectors of different types.
Be provided with the adjusting part that is used for adjusting optic fibre clamping angle on the anchor clamps, when there is the deckle edge, change the angle of pressing from both sides tight optical borer tip through driving adjusting part, grind, can get rid of deckle edge, make the lock pin shape after grinding smooth and no deckle edge, can be better dock with the connector.
S47, repeating the steps S41 to S43, and polishing the polishing slurry to obtain a second fiber drawing slurry by using a polishing sheet, wherein the rotating speed of the glass mat 2 is between 120rpm and 140rpm, preferably between 130rpm, and the polishing time is between 30S and 50S.
After each of steps S43 to S47 is completed, step S5 is performed once.
S5, cleaning the clamp and the insert core by using a water mist gun, then placing the clamp and the insert core in ultrasonic waves for cleaning, and drying water stains on the clamp and the insert core by using an air gun after cleaning.
During cleaning, the air gun cannot be used for blowing against the insert core, and hands are not allowed to touch the insert core. After completion, whether the residue is ground up is checked, the subsequent grinding effect is prevented from being influenced, and the quality of a grinding finished product is influenced.
And S6, finally, taking the ferrule out of the clamp.
The implementation principle of the invention is as follows: the colloid on the end face of the lock pin is removed and ground to the required length through grinding for a plurality of times at different degrees, and the end face of the lock pin is smooth and even; the shape of the insert core is better matched with the connector through the convex fiber treatment, so that the insert core is not easy to hurt the end surface during the physical butt joint of the insert core and the connector, thereby avoiding influencing the optical performance of the product; the light splitting treatment can lead the permeability of the insert core to be better, thereby being beneficial to better playing optical performance and reducing light loss.
Embodiment two: based on the optical fiber grinding process in the first embodiment, a grinding device is provided in a matched mode.
A polishing apparatus, referring to fig. 4, includes a polishing table 1, a glass pad 2 rotatably provided on the polishing table 1, and a jig provided on the polishing table 1. The polishing table 1 is provided in a rectangular parallelepiped shape, and the glass pad 2 is positioned on the top side of the polishing table 1. Be provided with the first driving piece that is used for driving glass pad 2 pivoted in the grinding table 1, in this embodiment, first driving piece is gear motor, and gear motor is vertical setting, and gear motor's drive end is vertical upwards to be connected in glass pad 2, can drive glass pad 2 rotation through gear motor.
When grinding, firstly, the surface of the lock pin is checked, no glue block residue is required to be ensured on the surface of the lock pin, no collapse of the surface of the lock pin is ensured, the lock pin is arranged on a clamp, a small amount of water mist is sprayed on the back surface of a glue removing grinding sheet by using a spray can and is adhered to a glass pad 2, air between the glue removing grinding sheet and the glass pad 2 is rolled out by using a push rod, grinding liquid is led into the grinding sheet, the glass pad 2 is driven to rotate by a speed reducing motor, and meanwhile, the lock pin can be ground by driving the clamp to move downwards.
Referring to fig. 4, in particular, the jig includes a chuck holder 4 provided on the grinding table 1 for supporting the chuck 3 and a clamping plate 3 provided on the chuck holder 4 for clamping the fixed ferrules in batch. One end of the chuck holder 4 protrudes into the grinding table 1. The grinding table 1 is internally provided with a second driving member for driving the chuck frame 4 to slide along the vertical direction, in this embodiment, the second driving member is a driving motor, an output shaft of the driving motor is connected to one end of the chuck frame 4 extending into the grinding table 1, and threads are arranged on the chuck frame 4. The chuck holder 4 is also movably provided with a chuck seat 41, the chuck seat 41 is used for driving the chuck 3 to move along the vertical direction, and the chuck seat 41 is matched with the threads of the chuck holder 4. The clamping plate 3 is circularly arranged, and one end of the clamping plate seat 41 is fixedly connected with the clamping plate 3 through bolts, so that the bottom side of the clamping plate 3 and the top side of the glass cushion 2 are oppositely arranged. When grinding is performed, the chuck table 41 is rotated in the vertical direction by driving the chuck table 4 to rotate by the driving motor, and the chuck table 41 is moved in the vertical direction to perform grinding in cooperation with the grinding sheet on the glass mat 2.
Referring to fig. 5 and 6, a plurality of clamping units are provided on the clamping disk 3, and the plurality of clamping units are equally spaced apart in the circumferential direction of the clamping disk 3. A sliding groove 5 is formed in the clamping unit, the sliding groove 5 is distributed in the direction from the center of the circle close to the clamping plate 3 to the center of the circle far away from the clamping plate 3, and the sliding groove 5 is in sliding fit with a sliding block 6. Through holes 7 penetrating through the upper surface and the lower surface of the clamping disc 3 are formed in the clamping unit, and the through holes 7 are used for placing the lock pins. A side hole 8 is formed in one side of the sliding block 6, and the side hole 8 is communicated with the through hole 7. The slide block 6 is provided with a fastener, the clamping plate 3 is provided with an elastic piece 9, and the fastener and the elastic piece 9 are respectively positioned at two sides of the through hole 7 and are oppositely arranged. The elastic member 9 is fixed to the chuck 3 by a screw, and in this embodiment, the fastener is an elastic pressing block.
Referring to fig. 5 and 6, in particular, the fastener includes a fastening buckle 10 provided on the chuck 3 and a fastening rod 11 having one end fixedly connected to the fastening buckle 10, the fastening rod 11 passing through the side hole 8 and being adjacent to the through hole 7. The end of the fastening rod 11 near the through hole 7 is provided with a cushion pad 12, and in this embodiment, the cushion pad 12 is a rubber pad. When the fastening buckle 10 is fastened, the fastening rod 11 extends into the through hole 7, so that a clamping gap is formed between the fastening rod 11 and the elastic piece 9. When the tightening buckle 10 is released, the tightening rod 11 is away from the through hole 7.
When the insert core is clamped and fixed, the insert core passes through the through hole 7 from one end of the clamping disc 3, the end part of the insert core extends out of the other end of the clamping disc 3, the fastening buckle 10 is fastened, the fastening rod 11 extends into the through hole 7 and acts together with the elastic piece 9 to clamp and fix the insert core. When the ferrule is taken out, the fastening buckle 10 is loosened, and the fastening rod 11 is far away from the through hole 7, so that the ferrule is taken out. Therefore, the lock pin can be clamped and fixed only by easy fastening or loosening.
Referring to fig. 7 and 8, in addition, in order to adjust the clamping gap, an adjusting assembly for adjusting the slider 6 to be close to or away from the through hole 7 is provided in the clamping disk 3. The adjustment assembly comprises a chuck 13 rotatably arranged in the chuck 3 and an adjustment lever 14 for driving the chuck 13 in rotation. The chuck 13 encircles and sets up in dress chuck 3, and the chuck 13 is close to one side of slider 6 and is provided with the screw thread, and the bottom of slider 6 cooperates with the screw thread on the chuck 13, and when chuck 13 rotated, slider 6 followed the rotation of screw thread, drove slider 6 and be close to or keep away from through-hole 7 to when changing the tight fixed lock pin of clamp, the clamping distance of fastening rod 11.
Referring to fig. 7 and 8, an adjusting lever 14 is provided at one end of the adjusting lever 14 with a rotating handle 15 at a side of the chuck 13 facing away from the slider 6. The other end of the adjustment rod 14 extends into the side wall of the chuck 3 and is located on the side of the chuck 13 facing away from the slide 6. The chuck 13 is still provided with first latch on one side that deviates from slider 6, and regulation pole 14 is close to chuck 13 department cover and is equipped with the drive wheel, is provided with the second latch with first latch intermeshing on the drive wheel to make drive wheel and chuck 13 intermeshing. During adjustment, the rotating handle 15 is driven to rotate, so that the linkage wheel rotates, the linkage wheel drives the chuck 13 to rotate, and the sliding block 6 is driven to be close to or far away from the through hole 7, so that the distance that the fastening rod 11 stretches into the through hole 7 when the fastening buckle 10 is adjusted to be fastened, and the size of the clamping gap is changed.
With continued reference to fig. 7 and 8, in order to prevent burrs from being generated on the end surface of the ferrule during the grinding process, the end of the ferrule needs to be inspected after the grinding is completed, and in the inspection process, the angle of the ferrule needs to be finely adjusted according to the occurrence of burrs. When in fine adjustment, the rotating handle 15 is driven to rotate, so that the sliding block 6 is close to or far away from the through hole 7, when the sliding block 6 is close to, the fastening rod 11 pushes the end part of the inserting core inwards, the elastic piece 9 is slightly compressed, the end part of the inserting core inwards deviates to a certain extent, and burrs on one side of the end part of the inserting core can be eliminated by grinding again; when the sliding block 6 is far away, the elastic piece 9 ejects the lock pin outwards, so that the end part of the lock pin outwards deflects, and burrs on the other side of the end part of the lock pin can be eliminated by grinding again.
The implementation principle of the invention is as follows: when grinding is carried out, firstly, checking the surface of the insert core; then, the insert core passes through the through hole 7 from one end of the clamping disc 3, the end part of the insert core extends out of the other end of the clamping disc 3, the fastening buckle 10 is fastened, the fastening rod 11 extends into the through hole 7 and is clamped and fixed under the combined action of the elastic piece 9, and the end surface of the insert core faces the glass pad 2; the glass pad 2 is provided with a glue grinding sheet, a proper amount of clean water is introduced, the glass pad 2 is driven to rotate by a first driving piece, the chuck frame 4 is driven to move downwards by a second driving room at a rotating speed of 100rpm, and the grinding time is between 30s and 60 s; changing a rough grinding sheet, and introducing a proper amount of clear water to enable the rotating speed of the glass pad 2 to be 120rpm and the grinding time to be between 30s and 60 s; changing a fine grinding sheet, and introducing a proper amount of clear water to ensure that the rotating speed of the glass pad 2 is 120rpm and the grinding time is between 70s and 100 s; changing the convex fiber grinding sheet, and introducing a proper amount of first fiber drawing slurry to enable the rotating speed of the glass pad 2 to be 150rpm and the grinding time to be 120-150 s; the polishing sheet is replaced, a proper amount of first fiber drawing slurry is introduced, the rotating speed of the glass pad 2 is 130rpm, and the polishing time is between 30s and 50s, so that the end part of the insert core is polished, the insert core can better exert optical performance, and the optical loss is reduced. After completion, the first driving member stops working, the chuck 3 is driven to reset by the second driving member, and then the fastening rod 11 is separated from the through hole 7 by loosening the fastening buckle 10, so that the ferrule is taken out.
The above embodiments are not intended to limit the scope of the present invention, so: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.
Claims (9)
1. An optical fiber grinding process comprising the steps of:
s1, checking the surface of the ferrule;
s2, clamping and fixing the insert core by using a clamp, grinding by using grinding equipment, wherein a glass pad (2) is arranged on the grinding equipment, the clamp is arranged on the grinding equipment, and the end part of the insert core faces the glass pad (2);
s3, installing a grinding sheet on the glass pad (2), and introducing grinding liquid into the grinding sheet;
s4, the grinding device drives the glass pad (2) to drive the grinding sheet to rotate, and simultaneously drives the clamp to move downwards to grind until the end face of the ferrule is matched with the shape of the connector, so that the ferrule has good optical performance.
2. An optical fiber lapping process as claimed in claim 1, wherein: and S1, checking whether glue blocks remain on the surface of the insert core, checking whether the surface of the insert core is broken or not, and checking whether colloidal particles are full or not.
3. An optical fiber lapping process as claimed in claim 1, wherein: the grinding sheets comprise a photoresist removing grinding sheet, a coarse grinding sheet, a fine grinding sheet, a convex fiber grinding sheet and a polishing grinding sheet, and the grinding sheets are sequentially replaced for grinding.
4. A fiber optic lapping process according to claim 3, wherein S4 comprises:
s41, attaching a photoresist removing grinding sheet to the glass pad (2);
s42, introducing grinding fluid;
s43, driving the glass pad (2) to rotate, wherein the rotating speed of the glass pad (2) is between 90 and 110rpm, and the grinding time is between 30 and 60 seconds;
s44, repeating the steps S41 to S43, and using a coarse grinding sheet, wherein the rotating speed of the glass pad (2) is between 110rpm and 130rpm, and the grinding time is between 30S and 60S;
s45, repeating the steps S41 to S43, and using a fine grinding sheet, wherein the rotating speed of the glass pad (2) is between 110rpm and 130rpm, and the grinding time is between 70S and 100S;
s46, repeating the steps S41 to S43, and using a convex fiber grinding sheet, wherein the rotating speed of the glass pad (2) is 140rpm to 160rpm, and the grinding time is 120S to 150S;
s47, repeating S41 to S43, and polishing the glass pad (2) by using a polishing sheet, wherein the rotating speed of the glass pad is 120-140 rpm, and the polishing time is 30-50S.
5. The optical fiber polishing process according to claim 5, wherein: after each of the steps S43 to S47 is completed, the jig and the ferrule end are cleaned using a washer, and the residual moisture is air-dried.
6. A grinding apparatus, in combination with a grinding process according to any one of claims 1 to 7, characterized in that: the grinding equipment comprises a grinding table (1), a glass pad (2) rotatably arranged on the grinding table (1) and a clamp arranged on the grinding table (1).
7. An optical fiber grinding apparatus according to claim 7, wherein: the fixture comprises a chuck frame (4) arranged on a grinding table (1) and a clamping disc (3) arranged on the chuck frame (4), chuck seats (41) used for driving the chuck frame (3) to move along the vertical direction are further arranged on the chuck frame (4), a plurality of clamping units are arranged at equal intervals along the circumferential direction of the clamping disc (3), each clamping unit comprises a through hole (7) penetrating through the upper surface and the lower surface of the clamping disc (3), a sliding groove (5) is formed in each clamping unit, the sliding grooves (5) are in sliding fit with a sliding block (6), a side hole (8) is formed in one side of the sliding block (6), the side hole (8) is communicated with the through hole (7), a fastener is arranged on the sliding block (6), and an elastic piece (9) is arranged on the clamping disc (3) in a relative mode.
8. An optical fiber grinding apparatus according to claim 8, wherein: the fastener comprises a fastening buckle (10) arranged on the clamping disc (3) and a fastening rod (11) with one end fixedly connected with the fastening buckle (10), wherein the fastening rod (11) penetrates through the side hole (8) and is close to the through hole (7), when the fastening buckle (10) is fastened, the fastening rod (11) stretches into the through hole (7), and when the fastening buckle (10) is unfastened, the fastening rod (11) is far away from the through hole (7).
9. An optical fiber grinding apparatus according to claim 9, wherein: still be provided with in clamping dish (3) and be used for adjusting slider (6) to be close to or keep away from the regulation subassembly of through-hole (7), regulation subassembly including rotate set up in chuck (13) in clamping dish (3) and be used for the drive chuck (13) pivoted regulation pole (14), chuck (13) encircle setting up in clamping dish (3), chuck (13) are close to one side of slider (6) and are provided with the screw thread, the bottom of slider (6) and the screw thread on chuck (13) mutually support, regulation pole (14) are located one side that chuck (13) deviate from slider (6), the one end of regulation pole (14) is provided with twist grip (15), the other end of regulation pole (14) stretches into the lateral wall of clamping dish (3), one side that chuck (13) deviate from slider (6) still is provided with first latch, regulation pole (14) are close to chuck (13) department cover and are equipped with the drive wheel, be provided with the second latch with first latch intermeshing on the drive wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311284291.7A CN117359478A (en) | 2023-10-07 | 2023-10-07 | Optical fiber grinding process and grinding equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311284291.7A CN117359478A (en) | 2023-10-07 | 2023-10-07 | Optical fiber grinding process and grinding equipment thereof |
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| CN117359478A true CN117359478A (en) | 2024-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311284291.7A Pending CN117359478A (en) | 2023-10-07 | 2023-10-07 | Optical fiber grinding process and grinding equipment thereof |
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| CN217122829U (en) * | 2021-12-06 | 2022-08-05 | 深圳市弘凯精密制造有限公司 | MT lock pin grinding clamp |
| CN115946002A (en) * | 2022-12-24 | 2023-04-11 | 蘅东光通讯技术(深圳)股份有限公司 | Optical fiber grinding machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2003311596A (en) * | 2002-04-25 | 2003-11-05 | Ntt Afty Corp | Grinding apparatus for fiber holding body and method for grinding end face of fiber holding body |
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