CN113959846A - Testing device and testing method for welding strength of welding spot in TOSA (transmitter optical subassembly) - Google Patents
Testing device and testing method for welding strength of welding spot in TOSA (transmitter optical subassembly) Download PDFInfo
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- CN113959846A CN113959846A CN202111561722.0A CN202111561722A CN113959846A CN 113959846 A CN113959846 A CN 113959846A CN 202111561722 A CN202111561722 A CN 202111561722A CN 113959846 A CN113959846 A CN 113959846A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
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Abstract
The invention provides a testing device for welding strength of a welding spot in a TOSA (transmitter optical subassembly), and relates to the field of optical fiber communication; the test device comprises: the lifting mechanism, the abutting assembly, the push-pull dynamometer and the bottom plate; the lifting mechanism is arranged on the bottom plate and used for driving the push-pull dynamometer to move up and down; the abutting assembly comprises a supporting seat and a gland; the supporting seat is arranged on the bottom plate; the top of the supporting seat is provided with a step limiting hole for placing the TOSA and enabling the bottom of the non-standard LC connector in the TOSA to be abutted against a step of the step limiting hole; the gland is detachably covered at the upper end of the supporting seat and can move up and down along the supporting seat; the top of the gland is provided with an avoidance hole; the gland is used for abutting against the top of the metal ring in the TOSA; the push-pull dynamometer is arranged on the lifting mechanism and used for detecting the pressure applied to the gland by the push-pull dynamometer; the invention further provides a method for testing the welding strength of the welding spot in the TOSA, which can accurately judge whether the welding strength between the metal ring and the non-standard LC connector meets the requirement.
Description
Technical Field
The invention relates to the field of optical fiber communication, in particular to a testing device and a testing method for welding strength of a welding spot in a TOSA (transmitter optical subassembly).
Background
TOSA is an abbreviation of Transmitter Optical Subassembly, and chinese is an Optical Transmitter Optical Subassembly, which is used to convert electrical signals into Optical signals. The TOSA mainly comprises an isolator, a non-standard LC connector, a metal ring and an optical fiber; in the production and assembly process of the TOSA, the metal ring is required to be fixedly sleeved on the outer side of the non-standard LC connector and is fixed through a laser welding process. In order to ensure the quality of the product, before the product leaves a factory, whether the welding strength of a welding spot between a metal ring and a non-standard LC connector in the TOSA meets the requirement needs to be tested.
Disclosure of Invention
The invention aims to provide a testing device and a testing method for welding strength of a welding spot in a TOSA (transmitter optical subassembly), which can accurately judge whether the welding strength between a metal ring and a non-standard LC (inductance capacitance) connector in the TOSA meets the requirement.
The invention provides a testing device for welding strength of a welding spot in a TOSA (transmitter optical subassembly), which comprises: the lifting mechanism, the abutting assembly, the push-pull dynamometer and the bottom plate;
the lifting mechanism is arranged on the bottom plate and used for driving the push-pull dynamometer to move up and down;
the abutting assembly comprises a supporting seat and a pressing cover; the supporting seat is arranged on the bottom plate; the top of the supporting seat is provided with a step limiting hole for placing the TOSA and enabling the bottom of the non-standard LC connector in the TOSA to be abutted against a step of the step limiting hole; the gland is detachably covered at the upper end of the supporting seat and can move up and down along the supporting seat; an avoidance hole is formed in the top of the gland and used for avoiding the isolator in the TOSA; the gland is used for abutting against the top of a metal ring in the TOSA;
the push-pull dynamometer is arranged on the lifting mechanism and used for detecting the pressure applied to the gland by the push-pull dynamometer; the push-pull dynamometer, the gland and the supporting seat are matched and used for testing the welding strength between the metal ring and the non-standard LC connector.
Further, the supporting seat is of a hollow structure; the step limiting hole is communicated with the inside of the supporting seat; the lateral wall of supporting seat is provided with the opening for conveniently get and put TOSA.
Further, the testing device for the welding strength of the welding spot in the TOSA also comprises a pressing block; the pressing block is arranged on a push rod of the push-pull dynamometer and is used for being abutted against the gland.
Furthermore, the lifting mechanism comprises a mounting plate, a guide rail, a lead screw support, a sliding block, a connecting piece and a driving piece; the mounting plate is vertically arranged on the bottom plate; the guide rail is vertically arranged on one side of the mounting plate; the sliding block is movably arranged on the guide rail; the screw rod is rotatably arranged on one side of the mounting plate through the screw rod support and is in threaded connection with the sliding block; the driving piece is connected with one end of the lead screw and used for driving the lead screw to rotate, so that the sliding block moves up and down along the guide rail; the connecting piece is arranged on the sliding block; the push-pull dynamometer is arranged on the connecting piece.
Further, the driving piece is a hand wheel.
The invention also provides a testing method of the testing device for the welding strength of the welding spot in the TOSA, which comprises the following steps:
s1, the gland is taken down, and the TOSA is inserted into the step limiting hole, so that the bottom of the non-standard LC connector in the TOSA is abutted against the step of the step limiting hole;
s2, covering the gland so that the gland abuts against the top of the metal ring in the TOSA;
s3, driving the push-pull dynamometer to move downwards to abut against the gland through the lifting mechanism; continuously moving down the push-pull dynamometer, and observing a pressure display value of the push-pull dynamometer; if the pressure display value is larger than or equal to the required value, the gland does not move downwards, and the welding strength between the metal ring and the non-standard LC connector is judged to be qualified; and if the pressure display value is smaller than the required value when the gland moves downwards, judging that the welding strength between the metal ring and the non-standard LC connector is unqualified.
The technical scheme provided by the embodiment of the invention has the following beneficial effects: the testing device for the welding strength of the welding spot in the TOSA comprises a lifting mechanism, an abutting assembly, a push-pull dynamometer and a bottom plate; wherein the abutment assembly comprises a support seat and a gland; the top of the supporting seat is provided with a step limiting hole; the gland is detachably covered at the upper end of the supporting seat and can move up and down along the supporting seat; the top of the gland is provided with an avoidance hole; when the pressure cover is used, the pressure cover is taken down firstly, and the TOSA is inserted into the step limiting hole, so that the bottom of the non-standard LC connector in the TOSA is abutted against the step of the step limiting hole; then, covering the gland so that the gland is abutted to the top of the metal ring in the TOSA; driving the push-pull dynamometer to move downwards to abut against the gland through the lifting mechanism, continuously moving the push-pull dynamometer downwards, and observing a pressure display value of the push-pull dynamometer; if the pressure display value is larger than or equal to the required value, the gland does not move downwards, and the welding strength between the metal ring and the non-standard LC connector is judged to be qualified; if the pressure display value is smaller than the required value when the gland moves downwards, the welding strength between the metal ring and the non-standard LC connector is judged to be unqualified, and whether the welding strength between the metal ring and the non-standard LC connector meets the requirement or not can be accurately judged.
Drawings
FIG. 1 is a schematic perspective view of a device for testing the welding strength of a solder joint in a TOSA according to an embodiment of the present invention;
FIG. 2 is a side view of the test fixture of FIG. 1 for weld strength of a solder joint in a TOSA;
FIG. 3 is a schematic perspective view of the lifting mechanism 4 in the testing device for the welding strength of the welding spot in the TOSA of FIG. 1;
FIG. 4 is a schematic perspective view of the push-pull dynamometer 3 of the testing apparatus for testing the welding strength of the welding spot in the TOSA of FIG. 1;
FIG. 5 is a schematic perspective view of a press block 32 in the testing apparatus for testing the welding strength of the solder joints in the TOSA of FIG. 1;
FIG. 6 is a schematic perspective view of the abutting assembly 2 of the testing device for testing the welding strength of the welding spot in the TOSA of FIG. 1;
FIG. 7 is a front view of the abutment assembly 2 of FIG. 6;
FIG. 8 is a cross-sectional view taken along the line B-B of the abutment assembly 2 of FIG. 7;
FIG. 9 is an enlarged partial view of portion C of FIG. 8;
FIG. 10 is a perspective view of the support base 21 of the abutment assembly 2 of FIG. 6;
FIG. 11 is a schematic perspective view of a prior art TOSA;
FIG. 12 is a side view of the TOSA of FIG. 11;
FIG. 13 is a cross-sectional view in the A-A direction of the TOSA of FIG. 12;
wherein, 1, a bottom plate; 2. an abutment assembly; 21. a supporting seat; 211. a step limiting hole; 212. an opening; 22. a gland; 221. avoiding holes; 3. a push-pull force meter; 31. a push rod; 32. briquetting; 33. mounting holes; 4. a lifting mechanism; 41. mounting a plate; 42. a guide rail; 43. a slider; 44. a lead screw support; 45. a lead screw; 46. a hand wheel; 47. a connecting member; 5. a TOSA; 51. a non-standard LC connector; 52. a metal ring; 53. an isolator; 54. an optical fiber.
Detailed Description
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the invention and together with the description, serve to explain the principles of the invention and not to limit the scope of the invention.
Referring to fig. 1, 2 and 6 to 13, an embodiment of the present invention provides a testing apparatus for a solder joint welding strength in a TOSA, including: the lifting mechanism 4, the abutting component 2, the push-pull dynamometer 3 and the bottom plate 1;
the lifting mechanism 4 is arranged on the bottom plate 1 and used for driving the push-pull dynamometer 3 to move up and down;
the abutment assembly 2 comprises a support seat 21 and a gland 22; the supporting seat 21 is arranged on the bottom plate 1; the top of the support base 21 is provided with a step limiting hole 211 for placing the TOSA 5 and enabling the bottom of the non-standard LC connector 51 in the TOSA 5 to abut against a step of the step limiting hole 211; the gland 22 is detachably covered at the upper end of the supporting seat 21 and can move up and down along the supporting seat 21; an avoidance hole 221 is formed in the top of the gland 22 and used for avoiding the isolator 53 in the TOSA 5; the gland 22 is used to abut the top of the metal ring 52 in the TOSA 5;
the push-pull dynamometer 3 is arranged on the lifting mechanism 4 and used for detecting the pressure applied to the gland 22 by the push-pull dynamometer 3; the push-pull force gauge 3, the gland 22 and the support base 21 are fitted to test the strength of the weld between the metal ring 52 and the non-standard LC connector 51.
Exemplarily, in the present embodiment, the avoiding hole 221 is disposed coaxially with the step limiting hole 211; when the TOSA 5 is placed in the step limiting hole 211, the isolator 53 is aligned with the avoiding hole 221.
It should be noted that the push-pull dynamometer 3 is a prior art, and therefore, the detailed structure thereof is not described herein.
Referring to fig. 11 to 13, the related art TOSA mainly includes an isolator 53, a metal ring 52, a non-standard LC connector 51, and an optical fiber 54; it should be noted that the TOSA product may further include other components, and for simplicity, only the above four components are described herein; the isolator 53 is disposed on top of the non-standard LC connector 51; the optical fiber 54 is connected to the non-standard LC isolator 51; the metal ring 52 is sleeved on the outer side of the non-standard LC connector 51 and is welded with the non-standard LC connector 51; the present invention is intended to judge whether or not the welding strength between the ferrule 52 and the non-standard LC connector 51 meets the requirements.
Specifically, referring to fig. 10, in order to facilitate taking and placing the TOSA 5, the support base 21 is a hollow structure; the step limiting hole 211 is communicated with the inside of the supporting seat 21; an opening 212 is arranged on the side wall of the supporting seat 21; the step of the step limiting hole 211 is the bottom of the countersink portion in the step limiting hole 211; when the TOSA 5 is taken and placed, the TOSA 5 is horizontally moved to the inside or the outside of the step limiting hole 211 from the opening 212, and the fact that the optical fiber 54 on the TOSA 5 is broken due to the deviation of the moving direction when the TOSA 5 is vertically moved to the inside or the outside of the step limiting hole 211 from the opening 212 of the step limiting hole 211 is avoided.
Referring to fig. 2, 4 and 5, the testing apparatus for the welding strength of the solder joint in the TOSA further includes a pressing block 32; the top of the pressing block 32 is provided with a mounting hole 33; the lower end of a push rod 31 of the push-pull dynamometer 3 is inserted in the mounting hole 33 and fixedly connected with the pressing block 32 through a screw; the pressing piece 32 is adapted to abut against the gland 22.
Specifically, referring to fig. 3, the lifting mechanism 4 includes a mounting plate 41, a guide rail 42, a lead screw 45, a lead screw support 44, a slider 43, a connecting member 47, and a driving member; the mounting plate 41 is vertically arranged on the bottom plate 1; the guide rail 42 is vertically arranged on one side of the mounting plate 41; the slider 43 is movably disposed on the guide rail 42; the screw 45 is rotatably arranged on one side of the mounting plate 41 through a screw support 44 and is in threaded connection with the slider 43; the driving piece is connected with one end of the screw rod 45 and is used for driving the screw rod 45 to rotate, so that the sliding block 43 moves up and down along the guide rail 42; the connecting piece 47 is arranged on the sliding block 43; the push-pull dynamometer 3 is disposed on the connecting member 47.
Exemplarily, in the present embodiment, the number of the guide rails 42 is two; the two guide rails 42 are oppositely arranged on one side of the mounting plate 41; the lead screw 45 is located between the guide rails 42.
Specifically, in this embodiment, the drive member is a hand wheel 46; by rotating the hand wheel 46, the lead screw 45 is driven to rotate, so that the slide block 43 is driven to move up and down in the vertical direction along the guide rail 42, and the push-pull dynamometer 3 is driven to move up and down in the vertical direction.
As a variation of this embodiment, the driving member may also be a servo motor; the servo motor is in transmission connection with one end of the lead screw 45.
The testing method of the testing device for the welding strength of the welding spot in the TOSA comprises the following steps:
s1, the gland 22 is taken down, and the TOSA 5 is inserted into the step limiting hole 211, so that the bottom of the non-standard LC connector 51 in the TOSA 5 is abutted against the step of the step limiting hole 211;
s2, capping the gland 22 so that the gland 22 abuts the top of the metal ring 52 in the TOSA 5;
s3, driving the push-pull dynamometer 3 to move downwards to abut against the gland 22 through the lifting mechanism 4; continuously moving the push-pull dynamometer 3 downwards, and observing a pressure display value of the push-pull dynamometer 3; if the pressure display value is greater than or equal to the required value, the gland 22 does not move downwards, and the welding strength between the metal ring 52 and the non-standard LC connector 51 is judged to be qualified; if the pressure display value is smaller than the required value when the gland 22 moves downward, it is determined that the welding strength between the metal ring 52 and the non-standard LC connector 51 is not satisfactory.
In this step, since the gland 22 abuts against the top of the metal ring 52; the bottom of the non-standard LC connector 51 is abutted against the step of the step limiting hole 211; if the gland 22 is moved downward, relative movement between the metal ring 52 and the non-standard LC connector 51 occurs, i.e., the solder joint between the metal ring 52 and the non-standard LC connector 51 is broken.
The above is not relevant and is applicable to the prior art.
In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The features of the embodiments and embodiments described herein above may be combined with each other without conflict.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. A testing arrangement that is arranged in TOSA solder joint weld strength, its characterized in that includes: the lifting mechanism, the abutting assembly, the push-pull dynamometer and the bottom plate;
the lifting mechanism is arranged on the bottom plate and used for driving the push-pull dynamometer to move up and down;
the abutting assembly comprises a supporting seat and a pressing cover; the supporting seat is arranged on the bottom plate; the top of the supporting seat is provided with a step limiting hole for placing the TOSA and enabling the bottom of the non-standard LC connector in the TOSA to be abutted against a step of the step limiting hole; the gland is detachably covered at the upper end of the supporting seat and can move up and down along the supporting seat; an avoidance hole is formed in the top of the gland and used for avoiding the isolator in the TOSA; the gland is used for abutting against the top of a metal ring in the TOSA;
the push-pull dynamometer is arranged on the lifting mechanism and used for detecting the pressure applied to the gland by the push-pull dynamometer; the push-pull dynamometer, the gland and the supporting seat are matched and used for testing the welding strength between the metal ring and the non-standard LC connector.
2. The testing device for the welding strength of the welding spots in the TOSA according to claim 1, wherein the supporting seat is of a hollow structure; the step limiting hole is communicated with the inside of the supporting seat; the lateral wall of supporting seat is provided with the opening for conveniently get and put TOSA.
3. The testing device for the welding strength of the welding spot in the TOSA according to claim 1, further comprising a pressing block; the pressing block is arranged on a push rod of the push-pull dynamometer and is used for being abutted against the gland.
4. The device for testing the welding strength of the welding points in the TOSA according to claim 1, wherein the lifting mechanism comprises a mounting plate, a guide rail, a lead screw support, a slider, a connecting piece and a driving piece; the mounting plate is vertically arranged on the bottom plate; the guide rail is vertically arranged on one side of the mounting plate; the sliding block is movably arranged on the guide rail; the screw rod is rotatably arranged on one side of the mounting plate through the screw rod support and is in threaded connection with the sliding block; the driving piece is connected with one end of the lead screw and used for driving the lead screw to rotate, so that the sliding block moves up and down along the guide rail; the connecting piece is arranged on the sliding block; the push-pull dynamometer is arranged on the connecting piece.
5. The testing device for the weld strength of the weld spots in the TOSA according to claim 4, wherein the driving member is a hand wheel.
6. A testing method using the testing apparatus for solder joint soldering strength in a TOSA according to any one of claims 1 to 5, comprising the steps of:
s1, the gland is taken down, and the TOSA is inserted into the step limiting hole, so that the bottom of the non-standard LC connector in the TOSA is abutted against the step of the step limiting hole;
s2, covering the gland so that the gland abuts against the top of the metal ring in the TOSA;
s3, driving the push-pull dynamometer to move downwards to abut against the gland through the lifting mechanism; continuously moving down the push-pull dynamometer, and observing a pressure display value of the push-pull dynamometer; if the pressure display value is larger than or equal to the required value, the gland does not move downwards, and the welding strength between the metal ring and the non-standard LC connector is judged to be qualified; and if the pressure display value is smaller than the required value when the gland moves downwards, judging that the welding strength between the metal ring and the non-standard LC connector is unqualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111561722.0A CN113959846A (en) | 2021-12-20 | 2021-12-20 | Testing device and testing method for welding strength of welding spot in TOSA (transmitter optical subassembly) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111561722.0A CN113959846A (en) | 2021-12-20 | 2021-12-20 | Testing device and testing method for welding strength of welding spot in TOSA (transmitter optical subassembly) |
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| CN113959846A true CN113959846A (en) | 2022-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111561722.0A Pending CN113959846A (en) | 2021-12-20 | 2021-12-20 | Testing device and testing method for welding strength of welding spot in TOSA (transmitter optical subassembly) |
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Cited By (1)
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| CN115165550A (en) * | 2022-09-08 | 2022-10-11 | 徐州艾奇川自动化设备有限公司 | Metal lamp pole welded strength detection device |
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Application publication date: 20220121 |