CN112147744B - Novel adjusting ring and assembling method of light emitting assembly - Google Patents
Novel adjusting ring and assembling method of light emitting assembly Download PDFInfo
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- CN112147744B CN112147744B CN202011062121.0A CN202011062121A CN112147744B CN 112147744 B CN112147744 B CN 112147744B CN 202011062121 A CN202011062121 A CN 202011062121A CN 112147744 B CN112147744 B CN 112147744B
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- welding
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/4236—Fixing or mounting methods of the aligned elements
- G02B6/4237—Welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4296—Coupling light guides with opto-electronic elements coupling with sources of high radiant energy, e.g. high power lasers, high temperature light sources
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Abstract
The invention relates to the field of light transmission, in particular to a novel adjusting ring and an assembling method of a light emitting assembly, wherein the part of the novel adjusting ring, which is used for penetrating and welding by an external inclined welding gun, is a round table, the novel adjusting ring is provided with a through hole penetrating from the top surface to the bottom surface, the through hole synchronously penetrates through the round table, the axis of the through hole is overlapped with the axis of the round table, an inclined angle is formed between a bus of the round table and the axis of the round table, and the bottom surface of the novel adjusting ring is a plane perpendicular to the axis of the round table. The light emitting component is formed by connecting a light emitting laser to the adapter ferrule through a seal welding pipe body in sequence and the novel adjusting ring and the isolator. The invention is used for ensuring the penetration welding quality of the adjusting ring in the production process of the light emitting component and improving the yield and reliability of products.
Description
Technical Field
The invention relates to the field of optical transmission, in particular to a novel adjusting ring and an assembling method of a light emitting assembly.
Background
The rapid development of information technology has enabled mobile communication systems to provide a wider variety of services, such as internet access, image transmission, video on demand, data interchange, and even real-time viewing of data or multimedia services such as television programs; 5G forward transmission and improvement of people's requirements depend on an optical module with higher speed and high quality; the optical network system comprises a data center, a passive optical network and an optical line terminal, which are all independent of information transmission and photoelectric conversion of an optical module.
The Optical module mainly includes a Transmitting Optical Sub-Assembly (TOSA) and a Receiving Optical Sub-Assembly (ROSA), and the quality of the assemblies will directly affect the quality and distance of signal transmission. As a core component of the Optical module, a transmitter Optical Sub-Assembly (TOSA) is used to convert electricity into light, thereby completing information transmission conversion. The optical transmission subassembly mainly includes light emission laser instrument, seal welding body, adjustable ring, adapter lock pin, if rate more than 10G, still need increase the isolator, and the main objective is for guaranteeing long distance transmission quality, and its production technology is: 1. assembling the isolator at the APC end of the adapter plug core by using the point 353ND glue and baking and fixing at high temperature; 2. sealing and welding the sealing and welding pipe body on the emission laser by adopting a resistance sealing and welding process to complete the assembly of the sealing and welding pipe body and the laser; 3. radium-shine coupling welding, wherein radium-shine coupling welding machine is 3 welder designs, and welder slope 30 degrees angles, the main objective is for guaranteeing the top surface of seal welding body and the planar 90 degrees angle overlap welding in adjustable ring bottom, and concrete production is operated: the lower chuck of the laser coupling welding machine clamps the laser with the sealed and welded pipe body, a working current with a fixed size is provided for the laser, the laser is triggered to emit light, the upper clamp clamps the adapter plug core, the coupling machine station adjusts the position of the X, Y, Z shaft of the upper clamp, the light emitted by the laser in a triggered mode is transmitted out through the adapter plug core, penetration welding is carried out when the large-area PD of the laser machine station monitors required power, after welding, the adjusting ring and the adapter plug core are fixed, so that one-section coupling is completed, then two-section coupling is carried out, the upper clamp flattens the bottom plane of the adjusting ring welded on the adapter and the plane of the sealed and welded pipe body, lap welding is carried out after the laser machine station is continuously coupled to the maximum power, so that the two-section coupling is completed, and the product is welded and fixed.
The structural design of the traditional adjusting ring 3 is mainly a step type as shown in figure 1 or a straight cylinder type as shown in figure 2, the outer diameter and the inner diameter of the adjusting ring are the same at the welding position of the penetration welding of the adjusting ring, in the traditional welding process, the batch production of products can not ensure that the welding position of each product and the welding energy including each beam of light are the same, if the welding position or the welding energy has deviation, the penetration welding spot can have different upward pulling force to the adjusting ring, the position interval of three beams of welding guns is 120 degrees, different upward pulling force can generate the inclination of the bottom plane of the adjusting ring and the plane of a sealing welding pipe body, in the process of two-stage coupling welding, if the two-stage coupling flattening action is completely flattened, the light path can be different from a first-stage coupling light path, the coupling power is reduced and can not meet the specification requirement, if the two-stage coupling is not flattened, the original inclined state of the adjusting ring can be kept, the coupling power value is not influenced, but the welding power value is lost due to inclination, and the power of a part of products with the optical power value lost is compensated by a single light beam generally, but because the products are in an inclined state, the displacement of the products is large due to large high and low temperature deviation in the high and low temperature test or application process of the products, the high and low temperature power deviation is large, and the power requirement of the products is influenced. The above two problems can both improve the bad proportion of the product and reduce the product quality.
Disclosure of Invention
The invention aims to ensure the penetration welding quality of the adjusting ring in the production process of the light emitting component and improve the yield and reliability of products.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the novel adjusting ring is provided with a through hole penetrating from the top surface to the bottom surface, the through hole synchronously penetrates through the round platform, the axis of the round platform is overlapped with the axis of the round platform, an inclination angle is formed between a bus of the round platform and the axis of the round platform, and the bottom surface of the novel adjusting ring is a plane perpendicular to the axis of the round platform.
Furthermore, an angle of inclination of 10 degrees is formed between the generatrix of the circular truncated cone and the axis of the circular truncated cone.
Further, the welding gun is inclined at an angle of 30 degrees.
Further, the top surface of the adjusting ring is a plane perpendicular to the axis of the circular truncated cone.
Including light emission laser, seal welding body, adapter lock pin, isolator and foretell novel adjustable ring, light emission laser in proper order through the seal welding body novel adjustable ring, isolator are connected to the adapter lock pin on, the adapter lock pin is aimed at to light emission laser's optical axis.
Further comprising:
step A, sealing and welding a sealing and welding pipe body on a light emitting laser;
b, adhering the isolator in the isolator groove of the adapter ferrule and baking at high temperature to finish fixation;
and step C, adopting a laser coupling welding machine with a welding gun inclined at an angle of 30 degrees, coupling the adapter plug core and the light emitting laser to the optimal power, then penetrating and welding the adjusting ring, and coupling the adapter plug core and the light emitting laser to the optimal power to complete lap welding of the adjusting ring and the seal welding pipe body.
And further, the laser coupling welding machine is provided with 3 welding guns, each welding gun inclines by 30 degrees, and in the step C, the inclined welding guns of the laser coupling welding machine are used for carrying out 90-degree angle lap welding on the top surface of the seal-welded pipe body and the bottom surface of the adjusting ring.
Further, the step C specifically includes:
c1, after a lower chuck of a laser coupling welding machine clamps a light emitting laser of a sealed and welded pipe body and drives the light emitting laser to be triggered, after an upper clamping hand of the laser coupling welding machine clamps an adapter insertion core, a coupling machine table adjusts the position of an X, Y, Z shaft of the upper clamping hand until the triggered light of the light emitting laser can be transmitted out through the adapter insertion core and the laser machine table monitors that the optimal power is met, penetrating welding is carried out, and therefore the coupling of the section is completed;
and C2., flattening the bottom surface of the adjusting ring welded on the adapter plug core and the top surface of the seal welding pipe body by the upper clamping hand, and continuously coupling to a laser machine to monitor that the optimal power is met, and performing lap welding to complete the two-section coupling.
Further, when the laser machine station monitors that the optimal power is met, the upper clamping hand is lifted out of focus by 10-15 um and then penetration welding is carried out.
Further, when the laser machine station monitors that the optimal power is met, the upper clamping hand is lifted out of focus by 10-15 um and then lap welding is carried out.
In order to deal with the fierce market environment and win the market for products with low cost and high quality, the invention provides a light emitting component structure, and the adjusting ring is designed into a circular table structure with an inclined angle by changing the structural design of the adjusting ring; when laser is coupled to required power, a 30-degree-inclined welding gun performs penetration welding, 30-degree-inclined welding energy is used for welding the adjusting ring at an inclined angle, a welding spot generates a contraction force upwards and a downward thrust force, the upward contraction force and the downward thrust force are mutually offset, and the flatness of the bottom plane of the adjusting ring and the top surface of a seal welding pipe body is better ensured in actual welding production; the two planes are parallel, so that the coupling efficiency of the two-section coupling is improved, and meanwhile, because the two planes are parallel, the proportion of the lap welding run value can be greatly reduced, and the product yield is improved; meanwhile, the phenomenon that the power deviation of the product is large due to the fact that two planes have inclination angles is avoided; the round platform structure with the angle of inclination of the adjusting ring is thin on the upper surface and thick on the lower surface, so that the penetration welding quality can be better ensured, and the reliability of a product is improved.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like elements throughout the drawings.
FIG. 1 shows a cross-sectional view of a conventional stepped adjusting ring.
Fig. 2 shows a cross-sectional view of a conventional straight barrel type adjusting ring.
Fig. 3 shows a schematic view of the structure of the light emitting module of the present invention.
Figure 4 shows an exploded view of a light emitting assembly of the present invention.
Figure 5 shows a cross-sectional view of a light emitting assembly of the present invention.
Fig. 6 shows a schematic view of the structure of the adjusting ring of the invention.
Figure 7 shows a cross-sectional view of the adjusting ring of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The adjusting ring 3 of this embodiment is as shown in fig. 6, and the portion on the adjusting ring 3 for penetrating and welding by an external 30-degree oblique welding gun is a round table structure, see fig. 7, the adjusting ring 3 has a through hole penetrating from the top surface to the bottom surface, the through hole synchronously penetrates through the round table, the axis of the round table is overlapped with the axis of the round table, the top surface and the bottom surface of the adjusting ring 3 are both planes perpendicular to the axis of the round table, an angle of inclination of 10 degrees is formed between the generatrix of the round table and the axis of the round table, and thus, the adjusting ring is in a structure with a thin upper surface and a thick lower surface.
During laser coupling, 30 degrees welder pierce through the welding to one side, 30 degrees welding energy inclines, weld the adjustable ring 3 of slope 10 degrees angles, the solder joint upwards produces when having a contractile force, also produce a decurrent thrust, ascending contractile force and decurrent thrust offset each other, in the actual welding production, the roughness of 3 bottom planes of adjustable ring and the 2 top surfaces of the seal welding body shown in figure 3 has been guaranteed better, two planar parallels, the coupling efficiency of two-stage process coupling has been improved, simultaneously because of two planes are parallel, overlap joint welding run value proportion can reduce by a wide margin, the product yield has been improved, avoid simultaneously having the inclination state to lead to the product high low temperature use power deviation very big because of two planes. In addition, the adjusting ring 3 inclines the round platform structure of 10 degrees angles, and the higher authority is thin thick below, and the assurance that can be better pierces through the welded quality, improves the reliability of product.
By applying the adjusting ring structure, the optical transmission module shown in fig. 3-5 can be assembled, wherein the optical transmission module further includes an optical transmission laser 1, a sealing welding tube body 2, an adapter ferrule 4, and an isolator 5, specifically, the optical transmission laser 1 is connected to the adapter ferrule 11 through the sealing welding tube body 2, the adjusting ring 3, and the isolator 5 in sequence, wherein the optical axis of the optical transmission laser 1 is kept aligned with the adapter ferrule 4.
The light emitting assembly is assembled by the following production process:
s11, sealing and welding the sealing and welding pipe body 2 to the light emitting laser 1 by adopting a resistance sealing and welding process to complete the assembly of the light emitting laser 1 and the sealing and welding pipe body 2;
s12, adopting a glue dispensing process to adhere the isolator 5 in the isolator groove of the adapter plug core 4 in a glue dispensing mode, and baking at high temperature to finish fixation;
s13, a laser coupling welding machine is adopted, wherein the laser coupling welding machine is designed for 3 welding guns, the welding guns are inclined by 30 degrees, a lower chuck of the laser coupling welding machine is controlled to clamp the laser 1 which is sealed and welded with the sealed and welded pipe body 2, working current with fixed magnitude is provided for the laser 1, the laser 1 is triggered to emit light, then an upper clamping hand of the laser coupling welding machine is controlled to clamp the adapter plug core 4, the coupling machine is adjusted through the position of an X, Y, Z shaft of the upper clamping hand, the large and small light emitted by the laser 1 after being triggered is transmitted out through the adapter plug core 4, when large-area PD of the laser machine monitors required power, the upper clamping hand is lifted to defocus by 10-15 microns, namely the upper clamping hand is used for lifting 10-15 microns of the adapter plug core 4 and then performing penetration welding, the upward lifting defocusing is mainly used for supplementing when a 30-degree welding gun penetrates and welds the adjusting ring 3, pulling and rising of the welding spot on the adjusting ring 3, and finishing one section of coupling;
then, a laser coupling welding machine is adopted to carry out two-stage coupling, an upper clamping hand carries out flattening action on the plane of the bottom of the adjusting ring 3 welded on the adapter plug core 4 and the plane of the sealing and welding pipe body 2, then the laser coupling welding machine is continuously coupled to the maximum power, defocusing is lifted, namely the Z axis is pulled to be 10-15 microns to carry out lap welding, the defocusing purpose before welding is that a welding spot pulls the adjusting ring 3 downwards to carry out advanced size compensation, and the two-stage coupling is completed and the light emitting assembly is assembled.
The light emitting component of the embodiment has the following advantages:
1. the adjusting ring structure of the traditional light emitting assembly is mainly designed into a step structure or a straight cylinder structure, and in the process of producing penetration welding of the emitting assembly, because a welding gun of a laser coupling welding machine is designed with an inclination angle of 30 degrees, the size and the thickness of the adjusting ring of the vertical structure are the same, an upward pulling force is exerted on the adjusting ring by a welding point, if the height of a first welding point is asymmetric, the upward pulling force is not uniform, the inclination of a sealing welding pipe body and the adjusting ring is easily caused, and the coupling power of two-stage coupling welding is easily reduced; the novel structure adjusting ring is characterized in that in the laser coupling welding process, an adjusting ring inclined by 10 degrees is welded on a 30-degree-inclined welding gun, and in the production application process, even if the height of a first welding point is different, downward thrust is generated in the penetration welding process while upward pulling force is generated, the upward and downward forces are mutually offset, the bottom plane of the adjusting ring is ensured to be parallel to the plane of a seal welding pipe body, and the risk of value loss of two-stage coupling welding power is reduced;
2. the emission assembly is produced by the adjusting ring with the new structure, and the upward pulling force of the welding spot and the downward pushing force of the welding spot are offset in the penetration welding process, so that the flatness of the adjusting ring and the seal welding pipe body is ensured, the problem of poor welding joints of finished products is avoided, and the production yield is improved;
3. in the adjusting ring structure of the traditional light emitting assembly, if the upward pulling force of the first-stage coupling penetration welding is not uniform, the second-stage coupling is easy to lose power, even if the power is supplemented back by a single light beam, the finished adjusting ring and the seal welding pipe body are inclined, and the displacement of the adjusting ring and the seal welding pipe body is increased in the high-low temperature test of the emitting assembly, so that the high-low temperature power deviation of the emitting assembly is very large, and the high-low temperature test is poor; the light emitting component produced by the adjusting ring with the new structure has the advantages that one section of coupling penetration welding spot is offset by upward pulling force and downward pushing force, the flatness of the adjusting ring and the sealing welding pipe body is guaranteed, the displacement of the adjusting ring and the sealing welding pipe body is small, the high-low temperature power change is small during high-low temperature testing of the light emitting component, and the yield of the light emitting component is improved;
4. the adjusting ring with the new structure is designed into a round table structure, the first penetration welding position is thinner, the adapter inserting core and the adjusting ring can be better integrated, and the stability of a product is guaranteed.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (7)
1. A novel adjusting ring and light emitting assembly assembling method is characterized in that:
the novel adjusting ring is provided with a through hole penetrating from the top surface to the bottom surface, the through hole synchronously penetrates through the round platform, the axis of the through hole is overlapped with the axis of the round platform, an inclination angle is formed between a bus of the round platform and the axis of the round platform, the bottom surface of the novel adjusting ring is a plane vertical to the axis of the round platform,
the light emitting assembly comprises a light emitting laser, a seal welding pipe body, an adapter plug core and an isolator, wherein the light emitting laser is connected to the adapter plug core through the seal welding pipe body, the novel adjusting ring and the isolator in sequence, and an optical axis of the light emitting laser is aligned to the adapter plug core;
the assembling method comprises the following steps:
step A, sealing and welding a sealing and welding pipe body on a light emitting laser;
b, adhering the isolator in the isolator groove of the adapter ferrule and baking at high temperature to finish fixation;
and step C, adopting a laser coupling welding machine with a welding gun inclined at an angle of 30 degrees, coupling the adapter plug core and the light emitting laser to the optimal power, then penetrating and welding the adjusting ring, and coupling the adapter plug core and the light emitting laser to the optimal power to complete lap welding of the adjusting ring and the seal welding pipe body.
2. The novel adjusting ring and light emitting assembly method of claim 1 wherein: the generatrix of the circular truncated cone and the axis of the circular truncated cone are inclined by 10 degrees.
3. The novel adjusting ring and light emitting assembly method of claim 1 wherein: the top surface of the adjusting ring is a plane perpendicular to the axis of the round platform.
4. The assembly method of a novel adjusting ring and light emitting assembly as set forth in any one of claims 1 to 3 wherein said laser coupling welder has 3 welding torches, each welding torch is inclined at an angle of 30 degrees, and in step C, the inclined welding torches of the laser coupling welder are used to lap weld the top surface of the sealed and welded pipe body and the bottom surface of the adjusting ring at an angle of 90 degrees.
5. The assembly method of a new adjusting ring and light emitting assembly as claimed in any one of claims 1 to 3, wherein the step C comprises:
c1, after a lower chuck of a laser coupling welding machine clamps a light emitting laser of a sealed and welded pipe body and drives the light emitting laser to be triggered, after an upper clamping hand of the laser coupling welding machine clamps an adapter insertion core, a coupling machine table adjusts the position of an X, Y, Z shaft of the upper clamping hand until the triggered light of the light emitting laser can be transmitted out through the adapter insertion core and the laser machine table monitors that the optimal power is met, penetrating welding is carried out, and therefore the coupling of the section is completed;
and C2., flattening the bottom surface of the adjusting ring welded on the adapter plug core and the top surface of the seal welding pipe body by the upper clamping hand, and continuously coupling to a laser machine to monitor that the optimal power is met, and performing lap welding to complete the two-section coupling.
6. The method as claimed in claim 5, wherein in step C1, when the laser machine monitors that the optimum power is satisfied, the upper gripper is lifted out of focus by 10-15 μm and then penetration welding is performed.
7. The method as claimed in claim 6, wherein in step C2, when the laser machine monitors that the optimum power is satisfied, the upper gripper is lifted out of focus by 10-15 μm and then lap welding is performed.
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| CN112147744A (en) | 2020-12-29 |
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