CN113280989A - Air tightness detection jig and detection method for photoelectric module tail fiber packaging structure - Google Patents
Air tightness detection jig and detection method for photoelectric module tail fiber packaging structure Download PDFInfo
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- CN113280989A CN113280989A CN202110396803.3A CN202110396803A CN113280989A CN 113280989 A CN113280989 A CN 113280989A CN 202110396803 A CN202110396803 A CN 202110396803A CN 113280989 A CN113280989 A CN 113280989A
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- 238000001514 detection method Methods 0.000 title claims abstract description 72
- 239000000835 fiber Substances 0.000 title claims abstract description 25
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 15
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 33
- 238000007789 sealing Methods 0.000 claims description 70
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- 239000013307 optical fiber Substances 0.000 claims description 3
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- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2838—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for cables
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Abstract
The invention discloses an air tightness detection jig for a photoelectric module tail fiber packaging structure, which comprises a workbench, a grooved pulley reducer, a first servo motor, a propulsion device, a detection device, a first fixing ring, an arc-shaped groove, an arc-shaped ring, a groove, a rotating shaft, a rotating block, a rotating table, a rotating groove, a shifting column, a driving groove and a support, wherein the grooved pulley reducer is fixed in the middle of the lower surface of the workbench, the first servo motor is fixed at the bottom of the grooved pulley reducer, the output end of the first servo motor is fixedly connected with the input end of the grooved pulley reducer, the upper surface of the workbench is rotatably connected with the rotating table, the output end of the grooved pulley reducer is fixedly connected with the rotating table, and the rotating groove is formed in the lower surface of the rotating table. The turnover in the vertical direction can greatly reduce the investment cost of equipment and improve the movement accuracy.
Description
Technical Field
The invention relates to the technical field, in particular to an air tightness detection jig and a detection method for a tail fiber packaging structure of a photoelectric module.
Background
The photoelectric module is a main component of optical transmission equipment, and is used for photoelectric conversion, namely, firstly converting an electrical signal into an optical signal, transmitting the optical signal through an optical fiber, and then converting the transmitted optical signal into the electrical signal through the optical module. The photoelectric module is used as the core of optical transmission, and has very wide application prospect in many aspects such as high-speed high-broadband data transmission, signal processing, optical fiber communication, automatic control, computer and the like;
in order to meet the requirement of high-precision product reliability, the airtightness of the tail fiber packaging structure of the photoelectric module generally needs to be detected, and when the conventional equipment for detecting the airtightness of the photoelectric module is used, complete vacuumizing operation needs to be performed every time, so that the vacuumizing time is prolonged, the working efficiency is reduced, the power consumption is increased due to the increase of the vacuumizing time, and the energy conservation and the environmental protection are not facilitated.
Disclosure of Invention
The invention aims to provide an air tightness detection jig and an air tightness detection method for a tail fiber packaging structure of a photoelectric module, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a gas tightness detection jig for a photoelectric module tail fiber packaging structure comprises a workbench, a grooved pulley reducer, a first servo motor, a propelling device, a detection device, a first fixing ring, an arc-shaped groove, an arc-shaped ring, a groove, a rotating shaft, a rotating block, a rotating table, a rotating groove, a shifting column, a driving groove and a support, wherein the grooved pulley reducer is fixed in the middle of the lower surface of the workbench, the first servo motor is fixed at the bottom of the grooved pulley reducer, the output end of the first servo motor is fixedly connected with the input end of the grooved pulley reducer, the upper surface of the workbench is rotatably connected with the rotating table, the output end of the grooved pulley reducer is fixedly connected with the rotating table, the rotating groove is formed in the lower surface of the rotating table, the first fixing ring is fixed on the upper surface of the workbench, the arc-shaped groove is formed in the outer side of the first fixing ring, the arc-shaped ring matched with the arc-shaped groove is fixed on the inner wall of the rotating groove, and is slidably connected with the inner wall of the arc-shaped groove, the groove is seted up to the revolving chute outside equidistance, and recess and revolving chute inner wall intercommunication, the recess inner wall rotates and is connected with the pivot, the pivot middle part is fixed with the revolving block, revolving block one end is fixed with advancing device, advancing device's one end is kept away from in the revolving block outside is fixed with dials the post, the driving groove has been seted up to the arc wall inner wall, and dials post and driving chute inner wall sliding connection, workstation one side is fixed with the support, the support top is fixed with detection device.
Preferably, the driving slot is located the arc inner wall upper end, and the driving slot is the setting of buckling downwards near the one end of detection device, and the least significant end of driving slot is the arc setting with first solid fixed ring concentric.
Preferably, the propelling device comprises a fixed block, a first chute, a motor groove, a second chute, a threaded rod, a first gear, a second servo motor, a second gear, a supporting plate, a first sliding block and a photoelectric module main body, wherein one end of the rotating block is fixed with the fixed block, the inner wall of the fixed block is provided with the first chute, the inner wall of the first chute is provided with the motor groove, the inner wall of the first chute is symmetrically provided with the second chute, the inner wall of the second chute is rotatably connected with the threaded rod through a bearing, one end of the threaded rod extends into the inner wall of the motor groove and is fixed with the first gear, the inner wall of the motor groove is fixed with the second servo motor, the output end of the second servo motor is fixed with the second gear, the second gear is meshed with the first gear and is connected with the supporting plate, the inner wall of the first chute is slidably connected with the supporting plate, the two ends of the supporting plate are symmetrically fixed with the first sliding block, and the middle part of the first sliding block is provided with a threaded hole, the first sliding block is in threaded connection with the threaded rod through a threaded hole, and the inner wall of the first sliding groove is connected with the photoelectric module main body in an inserted mode.
Preferably, the optoelectronic module body comprises a housing and a pigtail plug mounted in the housing.
Preferably, detection device includes vacuum box, vacuum pump, baroceptor and connecting valve, support one end is fixed with the vacuum box, the support top is fixed with the vacuum pump, and the air inlet and the vacuum box intercommunication of vacuum pump, it is fixed with the baroceptor to inlay on one side of the vacuum box, the vacuum box bottom is fixed with the connecting valve.
Preferably, the connecting valve includes the solid fixed ring of connecting pipe, sealing ring, second, valve rod, sealing plug, actuating mechanism, sealed tube and sealed the pad, vacuum bottom of the case portion is fixed with the connecting pipe, and connecting pipe and vacuum case intercommunication, connecting pipe inner wall upper end is fixed with the sealing ring, and the sealing ring inner wall is equipped with the chamfer, connecting pipe inner wall middle part is fixed with the solid fixed ring of second, the solid fixed ring inner wall sliding connection of second has the valve rod, the valve rod top is fixed with the sealing plug, and the sealing plug be with sealing ring inner wall matched with toper setting, and the sealing plug pegs graft with the sealing ring inner wall, the actuating mechanism who is used for driving the valve rod is installed to the connecting pipe inner wall, the connecting pipe bottom is fixed with the sealed tube, and the sealing ring bottom is fixed with sealed the pad.
Preferably, the driving mechanism comprises a third fixing ring, a sliding plate, a spring, a sliding column, a first rack, a second rack, a fixing plate, a fixing shaft and a third gear, a third fixing ring is fixed at the lower end of the inner wall of the connecting pipe, a sliding plate is fixed at the bottom of the valve rod, the sliding plate is connected with the inner wall of the connecting pipe in a sliding way, a spring is fixed on the lower surface of the sliding plate, the bottom of the spring is fixedly connected with a third fixing ring, the inner wall of the third fixing ring is connected with a sliding column in a sliding way, the top of the sliding column is fixed with a first rack, a second rack is fixed on the lower surface of the sliding plate, a fixed plate is fixed on the lower surface of the second fixed ring, a sliding hole is arranged at one end of the sliding plate close to the fixed plate, and the fixed plate is connected with the sliding hole in a sliding manner, a fixed shaft is fixed at the lower end of the fixed plate, one end of the fixed shaft is rotatably connected with a third gear through a bearing, and the third gear is respectively meshed and connected with the first rack and the second rack.
Preferably, the two ends of the sliding column are symmetrically fixed with limiting blocks, the inner wall of the third fixing ring is symmetrically provided with limiting grooves, the limiting blocks are connected with the limiting grooves in a sliding mode, the inner wall of the third fixing ring is symmetrically provided with ventilating grooves, and rubber strips are fixed to the bottom of the sliding column at equal intervals.
Preferably, the first servo motor and the second servo motor are both speed reduction motors.
The invention also comprises a method for detecting the air tightness of the tail fiber packaging structure of the photoelectric module, which comprises the following steps:
1) before the vacuum box is used, the sliding plate is pushed upwards under the elastic force of the spring, the sealing ring is blocked through the sealing plug, the vacuum box is sealed, the principle is similar to the valve principle, and then the vacuum box is vacuumized for later use through the vacuum pump;
2) the photoelectric module main body is inserted into the first chute, the four propelling devices respectively represent a feeding station, a detection station, a discharging station and a defective product removing station, and the photoelectric module main body is firstly inserted into the first chute on the feeding station;
3) the output end of the sheave reducer is driven to rotate by the rotation of the first servo motor, the first servo motor rotates for a circle, so that the output end of the sheave reducer rotates for 90 degrees, the photoelectric module main body on the feeding station is driven to one end of the detection device, the shifting column on the rotating block is in the driving groove, because the driving groove is positioned at the upper end of the inner wall of the arc-shaped groove, one end of the driving groove, which is close to the detection device, is bent downwards, the lowest end of the driving groove is in arc arrangement concentric with the first fixing ring, when the rotating block moves towards one end of the detection device, the shifting column is slowly shifted downwards in the driving groove until the shifting column moves to the lowest end, the opening of the driving groove is in a horizontal state at the highest position and is in a vertical state at the lowest position, the shifting column moves to one end of the vertical state from the horizontal state in the driving groove, and then the shifting column is changed from the original horizontal state to the vertical state, when the rotating block moves to one end of the detection device, the rotating block is turned upwards by 90 degrees, so that the photoelectric module main body in the first sliding chute is turned upwards by 90 degrees and is in a vertical state;
4) the second gear is driven to rotate by the rotation of the second servo motor, and then the first gear is driven to rotate, so that the first gear drives the threaded rod to rotate, and further the first sliding block and the supporting plate can be driven to slide, the supporting plate upwards pushes the photoelectric module main body in the first sliding groove, the tail fiber plug on the photoelectric module main body upwards pushes the sliding column, the sliding column drives the first rack to upwards slide, the first rack drives the second rack to downwards slide through the third gear, the second rack drives the sliding plate to downwards slide, and further the sliding plate drives the sealing plug to slowly downwards slide through the valve rod, the sealing ring is opened, so that the connecting pipe is communicated with the inside of the vacuum box, meanwhile, the shell of the photoelectric module main body is contacted with the sealing gasket at the bottom of the sealing pipe, the connecting pipe is sealed with the photoelectric module main body, and in the process, the sealing ring is firstly opened, then the sealing tube is sealed with the photoelectric module main body, so that the inside of the vacuum box can be communicated with the outside for a short time, and the outside air can flow into the vacuum box a little bit, therefore, the vacuum box can be vacuumized again through the vacuum pump, and then the current air pressure is recorded through the air pressure sensor;
5) after the photoelectric module main body is detected, the first servo motor rotates to drive the rotary table to rotate for 90 degrees, so that the shifting column on the rotary block is turned for 90 degrees under the limit of the driving groove, the fixed block which is vertically upward is further turned to be horizontal, and the photoelectric module main body moves to a blanking station;
6) if the air pressure sensor detects that the air pressure in the vacuum box is within an allowable error range, judging that the air tightness of a photoelectric module main body is normal, enabling the photoelectric module to enter a blanking station for blanking, then driving a push plate to push the photoelectric module out of a first chute through a second servo motor, if the sealing problem exists between the shell of the photoelectric module main body and a tail fiber plug, enabling external air to enter a connecting pipe through a gap between the shell and the tail fiber plug and then enter the vacuum box, enabling the air pressure value in the vacuum box to change, indicating that the air tightness does not reach the standard, judging that the photoelectric module main body is a defective product, and enabling a pushing device to rotate to a defective product rejection station for blanking through two rotations of the first servo motor;
7) every rotatory round of first servo motor, then carry out a material loading on the material loading station, detect the completion back at detection device, next photoelectric module main part is then removed to the detection device below again, detect according to above-mentioned step, because the time that the tail plug in the photoelectric module main part backs down the connecting valve is less, open and the closing process at the connecting valve is very short, make the negative pressure loss in the vacuum chamber not big, before next detection, only need through the vacuum pump suitably take out the air can, but the operating time of greatly reduced vacuum pump, thereby reduce the loss of electric power, use comparatively energy-conservation.
Compared with the prior art, the invention has the beneficial effects that:
before the vacuum detection device is used, the vacuum box is firstly vacuumized for standby through the vacuum pump, after the detection is not completed for one time, because the time for ejecting the connecting valve by the tail line plug on the photoelectric module main body is shorter, the opening and closing processes of the connecting valve are very short, the negative pressure loss in the vacuum box is not large, and before the next detection, only the vacuum pump needs to properly pump air, so that the working time of the vacuum pump can be greatly reduced, the power loss is reduced, and the energy is saved;
the output end of the sheave reducer is driven to rotate by the rotation of the first servo motor, the output end of the sheave reducer is rotated by 90 degrees by the rotation of the first servo motor, the photoelectric module main body on the feeding station is driven to one end of the detection device, the shifting column on the rotating block is in the driving groove, because the driving groove is positioned at the upper end of the inner wall of the arc-shaped groove, one end of the driving groove, which is close to the detection device, is bent downwards, the lowest end of the driving groove is in arc arrangement concentric with the first fixing ring, when the rotating block moves towards one end of the detection device, the shifting column is slowly shifted downwards in the driving groove until the shifting column moves to the lowest end, the opening of the driving groove is in a horizontal state at the highest position and is in a vertical state at the lowest position, the shifting column moves to one end of the vertical state from the horizontal state in the driving groove, and then the shifting column is changed from the original horizontal state to the vertical state, make the commentaries on classics piece when removing to detection device's one end, the piece that changes upwards overturns 90 degrees for the optoelectronic module main part in the first spout upwards overturns 90 degrees and is the vertical state, and then makes and need not extra drive and can drive the optoelectronic module main part and when doing the horizontal rotation, carries out the upset of vertical direction, but the cost that greatly reduced equipment dropped into improves the accuracy of motion.
Drawings
FIG. 1 is a schematic structural view of the present invention as a whole;
FIG. 2 is a schematic diagram of the sheave reducer of the present invention;
FIG. 3 is a schematic view of the driving slot structure of the present invention;
FIG. 4 is a schematic view of a turntable structure according to the present invention;
FIG. 5 is a second schematic view of the turntable structure of the present invention;
FIG. 6 is a schematic view of a rotary block structure according to the present invention;
FIG. 7 is a schematic view of the propulsion apparatus of the present invention;
FIG. 8 is a schematic view of the internal structure of the propulsion device of the present invention;
FIG. 9 is a schematic structural diagram of a detecting device according to the present invention;
FIG. 10 is a schematic view showing the internal structure of the connecting valve of the present invention;
FIG. 11 is a schematic view of the rubber strip structure of the present invention;
fig. 12 is a schematic view of a third gear structure of the present invention.
In the figure: 1. a work table; 2. a sheave reducer; 3. a first servo motor; 4. a propulsion device; 41. a fixed block; 42. a first chute; 43. a motor slot; 44. a second chute; 45. a threaded rod; 46. a first gear; 47. a second servo motor; 48. a second gear; 49. a support plate; 410. a first slider; 411. a photovoltaic module body; 4111. a housing; 4112. a pigtail plug; 5. a detection device; 51. a vacuum box; 52. a vacuum pump; 53. an air pressure sensor; 54. a connecting valve; 541. a connecting pipe; 542. a seal ring; 543. a second retaining ring; 544. a valve stem; 545. a sealing plug; 546. a drive mechanism; 5461. a third fixing ring; 5462. a slide plate; 5463. a spring; 5464. a sliding post; 5465. a first rack; 5466. a second rack; 5467. a fixing plate; 5468. a fixed shaft; 5469. a third gear; 54610. a limiting block; 54611. a ventilation groove; 54612. a rubber strip; 547. a sealing tube; 548. a gasket; 6. a first retaining ring; 7. an arc-shaped slot; 8. an arc-shaped ring; 9. a groove; 10. a rotating shaft; 11. rotating the block; 12. a turntable; 13. rotating the groove; 14. column shifting; 15. a drive slot; 16. and (4) a bracket.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, 2, 3, 4, 5 and 6, an air tightness detection fixture for a package structure of a fiber pigtail of a photovoltaic module in the figures includes a worktable 1, a sheave reducer 2, a first servo motor 3, a propulsion device 4, a detection device 5, a first fixing ring 6, an arc-shaped groove 7, an arc-shaped ring 8, a groove 9, a rotating shaft 10, a rotating block 11, a turntable 12, a rotating groove 13, a dial post 14, a driving groove 15 and a bracket 16, wherein the sheave reducer 2 is fixed in the middle of the lower surface of the worktable 1, the sheave reducer 2 adopts any one of quarter sheave mechanism reducers, which is a prior art and not described herein, the first servo motor 3 is fixed at the bottom of the sheave reducer 2, an output end of the first servo motor 3 is fixedly connected with an input end of the sheave reducer 2, the turntable 12 is rotatably connected with the upper surface of the worktable 1, and an output end of the sheave reducer 2 is fixedly connected with the turntable 12, the lower surface of the rotary table 12 is provided with a rotary groove 13, the upper surface of the working table 1 is fixed with a first fixing ring 6, the outer side of the first fixing ring 6 is provided with an arc-shaped groove 7, the inner wall of the rotary groove 13 is fixed with an arc-shaped ring 8 matched with the arc-shaped groove 7, the arc-shaped ring 8 is connected with the inner wall of the arc-shaped groove 7 in a sliding way, the outer side of the rotary groove 13 is provided with a groove 9 at equal distance, the groove 9 is communicated with the inner wall of the rotary groove 13, the inner wall of the groove 9 is connected with a rotary shaft 10 in a rotating way, the middle part of the rotary shaft 10 is fixed with a rotary block 11, one end of the rotary block 11 is fixed with a propelling device 4, one end of the outer side of the rotary block 11, far away from the propelling device 4, the inner wall of the arc-shaped groove 7 is provided with a driving groove 15, the driving groove 15 is connected with the inner wall of the driving groove 15 in a sliding way, the driving groove 15 is positioned at the upper end of the inner wall of the arc-shaped groove 7, one end of the driving groove 15 close to the detecting device 5 is arranged in a downward bending way, and the lowest end of the driving groove 15 is arranged in an arc-shaped arrangement which is concentric with the first fixing ring 6, a bracket 16 is fixed on one side of the workbench 1, a detection device 5 is fixed on the top of the bracket 16, the output end of the sheave reducer 2 is driven to rotate by the rotation of the first servo motor 3, the first servo motor 3 rotates for a circle, so that the output end of the sheave reducer 2 rotates for 90 degrees, the optoelectronic module main body 411 on the feeding station is driven to one end of the detection device 5, the poking column 14 on the rotating block 11 is arranged in the driving groove 15, because the driving groove 15 is positioned at the upper end of the inner wall of the arc-shaped groove 7, and one end of the driving groove 15 close to the detection device 5 is bent downwards, and the lowest end of the driving groove 15 is arranged in an arc shape concentric with the first fixing ring 6, so that when the rotating block 11 moves towards one end of the detection device 5, the poking column 14 is slowly poked downwards in the driving groove 15 until the rotating block moves to the lowest end, the opening of the driving groove 15 is in a horizontal state at the highest position and is in a vertical state at the lowest position, so that the shifting column 14 moves from the horizontal state to the end of the vertical state in the driving slot 15, and further the shifting column 14 changes from the original horizontal state to the vertical state, so that when the rotating block 11 moves to the end of the detecting device 5, the rotating block 11 turns over 90 degrees upwards, and the optoelectronic module main body 411 in the first sliding slot 42 turns over 90 degrees upwards to be in the vertical state.
Referring to fig. 7 and 8, the propelling device 4 includes a fixed block 41, a first sliding slot 42, a motor slot 43, a second sliding slot 44, a threaded rod 45, a first gear 46, a second servo motor 47, a second gear 48, a supporting plate 49, a first slider 410 and a photoelectric module main body 411, the fixed block 41 is fixed at one end of the rotary block 11, the first sliding slot 42 is opened on the inner wall of the fixed block 41, the motor slot 43 is opened on the inner wall of the first sliding slot 42, the second sliding slot 44 is symmetrically opened on the inner wall of the first sliding slot 42, the threaded rod 45 is rotatably connected with the inner wall of the second sliding slot 44 through a bearing, the first gear 46 is fixed at one end of the threaded rod 45 extending into the inner wall of the motor slot 43, the second servo motor 47 is fixed on the inner wall of the motor slot 43, the second gear 48 is fixed at the output end of the second servo motor 47, the second gear 48 is engaged with the first gear 46, the supporting plate 49 is slidably connected with the inner wall of the first sliding slot 42, the two ends of the supporting plate 49 are symmetrically fixed with first sliding blocks 410, the middle of the first sliding block 410 is provided with a threaded hole, the first sliding block 410 is in threaded connection with the threaded rod 45 through the threaded hole, the inner wall of the first sliding groove 42 is inserted with a photoelectric module main body 411, the second servo motor 47 rotates to drive the second gear 48 to rotate, and then the first gear 46 is driven to rotate, so that the first gear 46 drives the threaded rod 45 to rotate, and then the first sliding block 410 and the supporting plate 49 can be driven to slide, and the supporting plate 49 upwards pushes the photoelectric module main body 411 in the first sliding groove 42.
Referring to fig. 7 and 9, the optoelectronic module main body 411 includes a housing 4111 and a pigtail plug 4112 installed in the housing 4111, and an avoiding hole is formed in the middle of the supporting plate 49 for avoiding the pigtail plug at the other end of the optoelectronic module main body 411.
Referring to fig. 9, 10, 11 and 12, the detecting device 5 includes a vacuum box 51, a vacuum pump 52, an air pressure sensor 53 and a connection valve 54, the vacuum box 51 is fixed at one end of the bracket 16, the vacuum pump 52 is fixed at the top of the bracket 16, an air inlet of the vacuum pump 52 is communicated with the vacuum box 51, the air pressure sensor 53 is fixed at one side of the vacuum box 51 in an embedded manner, the connection valve 54 is fixed at the bottom of the vacuum box 51, if the air pressure sensor 53 detects that the air pressure in the vacuum box 51 is within an allowable error range, it is determined that the air tightness of the optoelectronic module main body 411 is normal, the optoelectronic module enters the blanking station for blanking, then the optoelectronic module is pushed out from the first chute 42 by the push plate driven by the second servo motor 47, if the sealing problem exists between the housing of the optoelectronic module main body 411 and the package of the pigtail plug 4112, the outside air enters the connection tube 541 through the gap between the housing and the pigtail plug 4112, therefore, the vacuum box 51 is entered, the air pressure value in the vacuum box 51 changes, the air tightness is not up to the standard, the vacuum box is judged to be a defective product, at the moment, the first servo motor 3 rotates for two circles, the propelling device 4 rotates to a defective product eliminating station to perform blanking, the first servo motor 3 performs feeding once on the feeding station every circle, after the detection of the detection device 5 is completed, the next photoelectric module main body 411 is moved to the lower part of the detection device 5 again to perform detection according to the steps, the opening and closing processes of the connecting valve 54 are short due to the fact that the time for ejecting the connecting valve 54 by the tail line plug on the photoelectric module main body 411 is short, the negative pressure loss in the vacuum box 51 is small, before the next detection, only the vacuum pump 52 needs to properly pump air out, the working time of the vacuum pump 52 can be greatly reduced, and the power loss is reduced, the use is energy-saving.
Referring to fig. 10, 11 and 12, the connection valve 54 includes a connection pipe 541, a sealing ring 542, a second fixing ring 543, a valve rod 544, a sealing plug 545, a driving mechanism 546, a sealing pipe 547 and a sealing pad 548, the connection pipe 541 is fixed at the bottom of the vacuum box 51 and is communicated with the vacuum box 51, the sealing ring 542 is fixed at the upper end of the inner wall of the connection pipe 541, a chamfer is arranged on the inner wall of the sealing ring 542, the second fixing ring 543 is fixed at the middle part of the inner wall of the connection pipe 541, the valve rod 544 is slidably connected to the inner wall of the second fixing ring 543, the sealing plug 545 is fixed at the top of the valve rod 544 and is provided in a tapered shape matching with the inner wall of the sealing ring 542, the sealing plug 545 is inserted into the inner wall of the sealing ring 542, the driving mechanism 546 for driving the valve rod 544 is installed on the inner wall of the connection pipe 541, the sealing pipe 547 is fixed at the bottom of the connection pipe 541, and the sealing pad 548 is fixed at the bottom of the sealing ring 542;
referring to fig. 10, 11 and 12, the driving mechanism 546 includes a third fixing ring 5461, a sliding plate 5462, a spring 5463, a sliding column 5464, a first rack 5465, a second rack 5466, a fixing plate 5467, a fixing shaft 5468 and a third gear 5469, the third fixing ring 5461 is fixed at the lower end of the inner wall of the connecting tube 541, the sliding plate 5462 is fixed at the bottom of the valve rod 544 and is slidably connected with the inner wall of the connecting tube 541, the spring 5463 is fixed at the lower surface of the sliding plate 5462, the bottom of the spring 5463 is fixedly connected with the third fixing ring 5461, the sliding column 5464 is slidably connected with the inner wall of the third fixing ring 5461, the first rack 5465 is fixed at the top of the sliding column 5464, the second rack 5466 is fixed at the lower surface of the sliding plate 5462, the fixing plate 5467 is fixed at the lower surface of the second fixing ring 543, a sliding hole is formed at one end of the sliding plate 5462 close to the fixing plate 5467, the fixing plate 5467 is slidably connected with the sliding hole, the fixing plate 5467 is slidably connected with the third gear 5469 through a bearing, and the third gear 5469 is respectively engaged with the first rack 5465 and the second rack 5466, when the tail plug pushes the sliding column 5464, the sliding column 5464 is driven to move downwards by the cooperation of the first rack 5465, the second rack 5466 and the third gear 5469, so that the valve rod 544 is driven to move downwards when the sliding column 5464 slides upwards, the opening of the sealing plug 545 is realized, and the sealing valve 545 is sealed from outside to inside due to the negative pressure in the vacuum box 51 and can achieve a good sealing effect by matching the negative pressure in the vacuum box 51.
Referring to fig. 11 and 12, two ends of the sliding column 5464 are symmetrically fixed with limiting blocks 54610, inner walls of the third fixing ring 5461 are symmetrically provided with limiting grooves, the limiting blocks 54610 are slidably connected with the limiting grooves, inner walls of the third fixing ring 5461 are symmetrically provided with ventilation grooves 54611, the bottom of the sliding column 5464 is equidistantly fixed with rubber strips 54612, air conveniently passes through the sliding column 5464 through ventilation holes to communicate with the connecting pipe 541, and the limiting blocks 54610 are arranged to limit the sliding column 5464.
The first servo motor 3 and the second servo motor 47 are both speed reducing motors, which are convenient for reducing the output rotating speed, wherein electronic components used in the invention are all controlled by a single chip microcomputer, related circuits and control are all in the prior art, and redundant description is not repeated herein.
The invention also comprises a method for detecting the air tightness of the tail fiber packaging structure of the photoelectric module, which comprises the following steps:
1) before use, the sliding plate 5462 is pushed upwards under the elastic force of the spring 5463, the sealing ring 542 is blocked by the sealing plug 545, the interior of the vacuum box 51 is sealed, the principle is similar to the valve principle, and then the vacuum box 51 is firstly vacuumized for standby by the vacuum pump 52;
2) the photoelectric module main body 411 is inserted into the first sliding groove 42, the four pushing devices 4 respectively represent a feeding station, a detection station, a blanking station and a defective product removing station, and the photoelectric module main body 411 is firstly inserted into the first sliding groove 42 on the feeding station;
3) the output end of the sheave reducer 2 is driven to rotate by the rotation of the first servo motor 3, the first servo motor 3 rotates for a circle, so that the output end of the sheave reducer 2 rotates for 90 degrees, the photoelectric module main body 411 on the feeding station is driven to one end of the detection device 5, the shifting post 14 on the rotating block 11 is arranged in the driving groove 15, because the driving groove 15 is positioned at the upper end of the inner wall of the arc-shaped groove 7, one end of the driving groove 15, which is close to the detection device 5, is bent downwards, and the lowest end of the driving groove 15 is in arc arrangement concentric with the first fixing ring 6, when the rotating block 11 moves towards one end of the detection device 5, the shifting post 14 is slowly shifted downwards in the driving groove 15 until the shifting post moves to the lowest end, the opening of the driving groove 15 is in a horizontal state at the highest position and is in a vertical state at the lowest position, so that the shifting post 14 moves to one end of the vertical state from the horizontal state in the driving groove 15, further, the shifting column 14 is changed from the original horizontal state to the vertical state, so that when the rotating block 11 moves to one end of the detecting device 5, the rotating block 11 is turned upwards by 90 degrees, and the photoelectric module main body 411 in the first sliding groove 42 is turned upwards by 90 degrees to be in the vertical state;
4) the second servo motor 47 rotates to drive the second gear 48 to rotate, and further drives the first gear 46 to rotate, so that the first gear 46 drives the threaded rod 45 to rotate, and further can drive the first slider 410 and the supporting plate 49 to slide, so that the supporting plate 49 upwards pushes the optoelectronic module main body 411 in the first chute 42, so that the pigtail plug 4112 on the optoelectronic module main body 411 upwards pushes the sliding column 5464, so that the sliding column 5464 drives the first rack 5465 to upwards slide, so that the first rack 5465 drives the second rack 5466 to downwards slide through the third gear 5469, so that the second rack 5466 drives the sliding plate 5462 to downwards slide, so that the sliding plate 5462 drives the valve rod 544 to drive the 545 to slowly downwards slide, the sealing ring 542 is opened, the connecting pipe 541 is communicated with the inside of the vacuum box 51, and meanwhile, the housing of the optoelectronic module main body 411 is in contact with the sealing pad 548 at the bottom of the sealing pipe 547, in the process, the sealing ring 542 is firstly opened by the sealing plug 545, and then the sealing pipe 547 is sealed with the photoelectric module main body 411, so that the inside of the vacuum box 51 can be communicated with the outside for a short time, and the outside air can flow into the vacuum box 51 a little bit, so that the vacuum box 51 can be vacuumized again by the vacuum pump 52, and then the current air pressure is recorded by the air pressure sensor 53;
5) after the detection of the photoelectric module main body 411 is completed, the first servo motor 3 rotates to drive the rotary table 12 to rotate for 90 degrees, so that the shifting column 14 on the rotary table 11 is turned for 90 degrees under the limit of the driving groove 15, the fixed block 41 which is vertically upward is further turned to be horizontal, and the photoelectric module main body 411 moves to a blanking station;
6) if the air pressure sensor 53 detects that the air pressure in the vacuum box 51 is within an allowable error range, the photoelectric module main body 411 is judged to be normal in air tightness, the photoelectric module enters a blanking station for blanking, then the second servo motor 47 drives the push plate to push the photoelectric module out of the first sliding groove 42, if the sealing problem exists between the shell of the photoelectric module main body 411 and the tail fiber plug 4112, outside air enters the connecting pipe 541 through a gap between the shell and the tail fiber plug 4112 and then enters the vacuum box 51, so that the air pressure value in the vacuum box 51 changes, the air tightness does not reach the standard, the photoelectric module is judged to be a defective product, and at the moment, the first servo motor 3 rotates for two circles, so that the propelling device 4 rotates to a defective product rejection station for blanking;
7) every rotatory round of first servo motor 3, then carry out a material loading on the material loading station, detect the completion back at detection device 5, next photoelectric module main part 411 is then removed to detection device 5 below again, detect according to above-mentioned step, because the time that the tail plug on the photoelectric module main part 411 backed down connecting valve 54 is less, it is very short to open and close the process at connecting valve 54, make the negative pressure loss in the vacuum box 51 not big, before next detection, only need through vacuum pump 52 suitably take out the air can, but greatly reduced vacuum pump 52's operating time, thereby reduce the loss of electric power, it is comparatively energy-conserving to use.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides an air tightness detection tool for optical-electrical module tail optical fiber packaging structure, includes workstation (1), sheave reduction gear (2), first servo motor (3), advancing device (4), detection device (5), first solid fixed ring (6), arc wall (7), arc ring (8), recess (9), pivot (10), commentaries on classics piece (11), revolving stage (12), commentaries on classics groove (13), dials post (14), drive groove (15) and support (16), its characterized in that: the middle part of the lower surface of the workbench (1) is fixed with a sheave reducer (2), the bottom of the sheave reducer (2) is fixed with a first servo motor (3), the output end of the first servo motor (3) is fixedly connected with the input end of the sheave reducer (2), the upper surface of the workbench (1) is rotatably connected with a rotary table (12), the output end of the sheave reducer (2) is fixedly connected with the rotary table (12), the lower surface of the rotary table (12) is provided with a rotary groove (13), the upper surface of the workbench (1) is fixed with a first fixing ring (6), the outer side of the first fixing ring (6) is provided with an arc-shaped groove (7), the inner wall of the rotary groove (13) is fixed with an arc-shaped ring (8) matched with the arc-shaped groove (7), the arc-shaped ring (8) is slidably connected with the inner wall of the arc-shaped groove (7), the outer side of the rotary groove (13) is provided with grooves (9) at equal intervals, and recess (9) and rotating groove (13) inner wall intercommunication, recess (9) inner wall rotates and is connected with pivot (10), pivot (10) middle part is fixed with commentaries on classics piece (11), commentaries on classics piece (11) one end is fixed with advancing device (4), the one end of keeping away from advancing device (4) in the commentaries on classics piece (11) outside is fixed with dials post (14), driving groove (15) have been seted up to arc wall (7) inner wall, and dials post (14) and driving groove (15) inner wall sliding connection, workstation (1) one side is fixed with support (16), support (16) top is fixed with detection device (5).
2. The airtightness detection jig for the tail fiber packaging structure of the optoelectronic module according to claim 1, wherein: drive groove (15) are located arc wall (7) inner wall upper end, and drive groove (15) are close to the one end of detection device (5) and are the setting of buckling downwards, and the least significant end of drive groove (15) is the arc setting with first solid fixed ring (6) concentric circles.
3. The airtightness detection jig for the tail fiber packaging structure of the optoelectronic module according to claim 1, wherein: the propelling device (4) comprises a fixing block (41), a first sliding groove (42), a motor groove (43), a second sliding groove (44), a threaded rod (45), a first gear (46), a second servo motor (47), a second gear (48), a supporting plate (49), a first sliding block (410) and a photoelectric module main body (411), wherein the fixing block (41) is fixed at one end of the rotating block (11), the first sliding groove (42) is formed in the inner wall of the fixing block (41), the motor groove (43) is formed in the inner wall of the first sliding groove (42), the second sliding groove (44) is symmetrically formed in the inner wall of the first sliding groove (42), the threaded rod (45) is rotatably connected to the inner wall of the second sliding groove (44) through a bearing, the first gear (46) is fixed on the inner wall of the motor groove (43) by extending one end of the threaded rod (45), the second servo motor (47) is fixed on the inner wall of, the output end of the second servo motor (47) is fixed with a second gear (48), the second gear (48) is meshed with the first gear (46) and connected, the inner wall of the first sliding groove (42) is connected with a supporting plate (49) in a sliding mode, first sliding blocks (410) are symmetrically fixed to two ends of the supporting plate (49), threaded holes are formed in the middle of the first sliding blocks (410), the first sliding blocks (410) are connected with threaded rods (45) in a threaded mode through the threaded holes, and the inner wall of the first sliding groove (42) is connected with a photoelectric module main body (411) in an inserting mode.
4. The hermetic tightness detection fixture for the tail fiber package structure of the optoelectronic module according to claim 3, wherein: the optoelectronic module body (411) includes a housing (4111) and a pigtail plug (4112) mounted within the housing (4111).
5. The airtightness detection jig for the tail fiber packaging structure of the optoelectronic module according to claim 1, wherein: detection device (5) are including vacuum box (51), vacuum pump (52), baroceptor (53) and connecting valve (54), support (16) one end is fixed with vacuum box (51), support (16) top is fixed with vacuum pump (52), and the air inlet and the vacuum box (51) intercommunication of vacuum pump (52), inlay on one side of vacuum box (51) and be fixed with baroceptor (53), vacuum box (51) bottom is fixed with connecting valve (54).
6. The hermetic tightness detection fixture for the tail fiber package structure of the optoelectronic module according to claim 5, wherein: the connecting valve (54) comprises a connecting pipe (541), a sealing ring (542), a second fixing ring (543), a valve rod (544), a sealing plug (545), a driving mechanism (546), a sealing pipe (547) and a sealing gasket (548), the bottom of the vacuum box (51) is fixed with the connecting pipe (541), the connecting pipe (541) is communicated with the vacuum box (51), the upper end of the inner wall of the connecting pipe (541) is fixed with the sealing ring (542), the inner wall of the sealing ring (542) is provided with a chamfer, the middle part of the inner wall of the connecting pipe (541) is fixed with the second fixing ring (543), the inner wall of the second fixing ring (543) is slidably connected with the valve rod (544), the top of the valve rod (544) is fixed with the sealing plug (545) and the sealing plug (545) is in a conical arrangement matched with the inner wall of the sealing ring (542), the sealing plug (545) is inserted with the inner wall of the sealing ring (542), the driving mechanism (546) for driving the valve rod (544) is installed on the inner wall of the connecting pipe (541), the bottom of the connecting pipe (541) is fixed with a sealing pipe (547), and the bottom of the sealing ring (542) is fixed with a sealing gasket (548).
7. The hermetic tightness detection fixture for the tail fiber package structure of the optoelectronic module according to claim 6, wherein: the driving mechanism (546) comprises a third fixing ring (5461), a sliding plate (5462), a spring (5463), a sliding column (5464), a first rack (5465), a second rack (5466), a fixing plate (5467), a fixing shaft (5468) and a third gear (5469), the lower end of the inner wall of the connecting pipe (541) is fixed with the third fixing ring (5461), the bottom of the valve rod (544) is fixed with the sliding plate (5462), the sliding plate (5462) is in sliding connection with the inner wall of the connecting pipe (541), the lower surface of the sliding plate (5462) is fixed with the spring (5463), the bottom of the spring (5463) is fixedly connected with the third fixing ring (5461), the inner wall of the third fixing ring (5461) is in sliding connection with the sliding column (5464), the top of the sliding column (5464) is fixed with the first rack (5465), the lower surface of the sliding plate (5462) is fixed with the second rack (5466), the lower surface of the second fixing ring (543) is fixed with the fixing plate (5467), one end, close to the fixing plate (5467), of the sliding plate (5462) is provided with a sliding hole, the fixing plate (5467) is in sliding connection with the sliding hole, a fixing shaft (5468) is fixed to the lower end of the fixing plate (5467), one end of the fixing shaft (5468) is rotatably connected with a third gear (5469) through a bearing, and the third gear (5469) is respectively in meshed connection with the first rack (5465) and the second rack (5466).
8. The hermetic tightness detection fixture for the tail fiber package structure of the optoelectronic module according to claim 7, wherein: limiting blocks (54610) are symmetrically fixed at two ends of the sliding column (5464), limiting grooves are symmetrically formed in the inner wall of the third fixing ring (5461), the limiting blocks (54610) are connected with the limiting grooves in a sliding mode, ventilating grooves (54611) are symmetrically formed in the inner wall of the third fixing ring (5461), and rubber strips (54612) are fixed at the bottom of the sliding column (5464) in an equidistant mode.
9. The hermetic tightness detection fixture for the tail fiber package structure of the optoelectronic module according to claim 3, wherein: the first servo motor (3) and the second servo motor (47) are both speed reducing motors.
10. The method for detecting the air tightness of the tail fiber packaging structure of the optoelectronic module according to claim 3, wherein: the detection method comprises the following steps:
1) before use, the sliding plate (5462) is pushed upwards under the elastic force of the spring (5463), the sealing ring (542) is blocked through the sealing plug (545) to seal the inside of the vacuum box (51), the principle is similar to the valve principle, and then the inside of the vacuum box (51) is firstly vacuumized for standby through the vacuum pump (52);
2) the photoelectric module main body (411) is inserted into the first sliding groove (42), the four pushing devices (4) respectively represent a feeding station, a detection station, a discharging station and a defective product removing station, and the photoelectric module main body (411) is firstly inserted into the first sliding groove (42) on the feeding station;
3) the output end of the sheave reducer (2) is driven to rotate by the rotation of the first servo motor (3), the first servo motor (3) rotates for a circle, the output end of the sheave reducer (2) rotates for 90 degrees, the photoelectric module main body (411) on the feeding station is driven to one end of the detection device (5), the shifting column (14) on the rotating block (11) is arranged in the driving groove (15), the driving groove (15) is positioned at the upper end of the inner wall of the arc-shaped groove (7), one end, close to the detection device (5), of the driving groove (15) is bent downwards, the lowest end of the driving groove (15) is arranged in an arc shape concentric with the first fixing ring (6), when the rotating block (11) moves towards one end of the detection device (5), the shifting column (14) is slowly shifted downwards in the driving groove (15) until the shifting column moves to the lowest end, the opening of the driving groove (15) is in a horizontal state at the highest position, the shifting column (14) is moved to one end of the vertical state from the horizontal state in the driving groove (15) at the lowest position, and then the shifting column (14) is changed from the original horizontal state to the vertical state, so that when the rotating block (11) moves to one end of the detection device (5), the rotating block (11) is turned over upwards by 90 degrees, and the photoelectric module main body (411) in the first sliding groove (42) is turned over upwards by 90 degrees to be in the vertical state;
4) the second gear (48) is driven to rotate by the rotation of the second servo motor (47), and then the first gear (46) is driven to rotate, so that the first gear (46) drives the threaded rod (45) to rotate, and then the first sliding block (410) and the supporting plate (49) can be driven to slide, so that the supporting plate (49) upwards pushes the photoelectric module main body (411) in the first sliding groove (42), so that the tail fiber plug (4112) on the photoelectric module main body (411) upwards pushes the sliding column (5464), so that the sliding column (5464) drives the first rack (5465) to upwards slide, so that the first rack (5465) drives the second rack (5466) to downwards slide through the third gear (5469), so that the second rack (5466) drives the sliding plate (5462) to downwards slide, and then the sliding plate (5462) drives the sealing plug (545) to slowly downwards slide through the valve rod (544), and the sealing ring (542) is opened, the connecting pipe (541) is communicated with the inside of the vacuum box (51), meanwhile, the shell of the photoelectric module main body (411) is contacted with a sealing gasket (548) at the bottom of a sealing pipe (547), the connecting pipe (541) and the photoelectric module main body (411) are sealed, in the process, as the sealing plug (545) opens the sealing ring (542) first and then the sealing pipe (547) is sealed with the photoelectric module main body (411), the inside of the vacuum box (51) can be communicated with the outside for a short time, and outside air can flow into the vacuum box (51) a little bit, the vacuum box (51) can be vacuumized again through the vacuum pump (52), and then the current air pressure is recorded through the air pressure sensor (53);
5) after the photoelectric module main body (411) is detected, the first servo motor (3) rotates to drive the rotary table (12) to rotate for 90 degrees, so that the shifting column (14) on the rotary block (11) is turned for 90 degrees under the limiting of the driving groove (15), the fixed block (41) which is vertically upward is further turned to be horizontal, and the photoelectric module main body (411) moves to a blanking station;
6) if the air pressure sensor (53) detects that the air pressure in the vacuum box (51) is within the allowable error range, then the photoelectric module main body (411) is judged to have normal air tightness, the photoelectric module enters a blanking station for blanking, then the second servo motor (47) drives the push plate to push the photoelectric module out of the first chute (42), if there is a problem with the hermeticity of the housing of the optoelectronic module body (411) with the packaging of the pigtail plug (4112), the external air enters the connecting pipe (541) through the gap between the shell and the pigtail plug (4112), thereby entering the vacuum box (51) to change the air pressure value in the vacuum box (51), if the air tightness does not reach the standard, determining that the defective product is determined, and rotating the propulsion device (4) to a defective product removing station for blanking through two circles of rotation of the first servo motor (3);
7) every rotation circle of first servo motor (3), then carry out a material loading on the material loading station, after detection device (5) detect and accomplish, next photoelectric module main part (411) is then removed to detection device (5) below again, detect according to above-mentioned step, because the time that the tail line plug on photoelectric module main part (411) backs down coupling valve (54) is less, it is very short to open and close the process at coupling valve (54), make the negative pressure loss in vacuum box (51) not big, before next detection, only need through vacuum pump (52) suitably take out the air can, can greatly reduced vacuum pump's (52) operating time, thereby reduce the loss of electric power, use comparatively energy-conservation.
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