CN208681405U - A kind of optical assembly test fixture - Google Patents
A kind of optical assembly test fixture Download PDFInfo
- Publication number
- CN208681405U CN208681405U CN201821413533.2U CN201821413533U CN208681405U CN 208681405 U CN208681405 U CN 208681405U CN 201821413533 U CN201821413533 U CN 201821413533U CN 208681405 U CN208681405 U CN 208681405U
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- optical assembly
- slide unit
- circuit board
- control rod
- bottom plate
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Abstract
The utility model discloses a kind of optical assembly test fixtures, including bottom plate, circuit board fixing seat is provided on the bottom plate, pressing device and multiple boss are provided in circuit board fixing seat, pressing device includes pressure sensor, and the adjusting slide unit for the pin of optical assembly to be measured to be aligned with the pad of PCB circuit board is provided on bottom plate.The pin of optical assembly is aligned with the pad locations of PCB circuit board by adjusting slide unit, is clamped the pin of optical assembly and the pad of PCB circuit board using pressing device, while using the clamping force of pressure sensor detection pin and pad.The utility model has many advantages, such as that structure is simple, easy to use and low manufacture cost, can improve the accuracy and consistency of optical assembly test, has the prospect promoted and applied.
Description
Technical field
The utility model relates to technical field of photo communication, and in particular to a kind of optical assembly test fixture.
Background technique
With the development of digital circuit and photoelectric technology, optical module in modern communication systems using more and more extensive.
Optical module is made of optical assembly, PCB circuit board and optical interface etc., and light letter is completed in the main reception for completing optical signal and transmission
Mutual conversion and the functions such as the coherent detection of optical signal and diagnosis number with electric signal.By TOSA component (Transmitter
Optical Subassembly, light emission component) and ROSA component (Receiver Optical Subassembly, light-receiving
Component) it is welded on before PCB circuit board, it needs to test TOSA or ROSA component respectively, to guarantee the optical module of assembling
The qualification rate of product.
The test job of optical assembly is usually first by the pin of the TOSA component or ROSA component pad with PCB circuit board respectively
After contact, then carry out relevant test.Existing test generally uses manual operation, in TOSA and ROSA component and PCB circuit
In the position docking operation of plate, the main problems are as follows: 1) precision of conventional measurement test stand is lower, the pin of optical assembly with
The pad merging precision of PCB circuit board is poor, on the one hand causes the error of test larger, has seriously affected the accuracy of test,
On the other hand it is be easy to cause the damage of optical assembly, increases production cost；2) manual hand manipulation is relied on, not only the behaviour of tester
Make difficulty height, low efficiency, and human factor will cause testing differentia, it is difficult to ensure that the consistency of test result.
Summary of the invention
In view of the deficiencies in the prior art, the technical issues of the utility model solves are as follows: a kind of optical assembly survey is provided
Fixture is tried, it is low to be able to solve the precision of optical assembly during the test, it is difficult to the problem of guaranteeing the accuracy and consistency of test.
To achieve the above objectives, a kind of optical assembly test fixture provided by the utility model, including bottom plate, on the bottom plate
It is provided with circuit board fixing seat, pressing device and multiple boss are provided in circuit board fixing seat, pressing device includes that pressure passes
Sensor is provided with the adjusting slide unit for the pin of optical assembly to be measured to be aligned with the pad of PCB circuit board on bottom plate.
It is matched using slide unit is adjusted with circuit board fixing seat, so that the weldering of the pin of optical assembly to be measured and PCB circuit board
Disk is located at same level height, greatly reduces the operation difficulty of existing test.It first passes through and adjusts slide unit for the pin of optical assembly
It is aligned with the pad locations of PCB circuit board, pressing device is recycled to clamp the pin of optical assembly and the pad of PCB circuit board,
Simultaneously using the clamping force of pressure sensor detection pin and pad, ensure that the two is detected each time using accurate pressure value
Identical pressured state is come into full contact with and kept in the process, and optical assembly pin is overcome to be easy positioning and people in conventional measurement test stand
For testing differentia caused by factor, to ensure the accuracy and consistency of testing result.
Based on the above technical solution, the adjusting slide unit is mounted on on the bottom plate of pressing device corresponding position, is adjusted
The top surface of section slide unit is provided with groove, and the side for adjusting slide unit is provided with locking piece.
Optical assembly to be measured is fixed in groove using locking piece, optical assembly pin is overcome to be easy to run in conventional measurement test stand
The problem of position avoids the reflection for causing to detect signal, and frequency spectrum loss is caused to influence, and is conducive to improve the accurate of optical assembly test
Degree.
Based on the above technical solution, the pressing device further includes the pushing being mounted in circuit board fixing seat
Block, lower lock block are provided with externally threaded guide post, and upper holder block is mounted on the top of lower lock block by guide post, and upper holder block is provided with lock
Tight nut, locking nut lower end are sequentially connected with the driving wheel being set in outside guide post.
It is meshed using the internal screw thread of driving wheel with guide post external screw thread, drives driving wheel rotation by screwing locking nut,
To drive upper holder block to move up and down along guide post, the pin of optical assembly and the pad of PCB circuit board are clamped, it is ensured that the two is being examined
Pressured state is come into full contact with and keeps during surveying, to improve the accuracy and consistency of test.
Based on the above technical solution, the upper holder block is made of elastic material.
The pin of optical assembly and the pad of PCB circuit board are clamped using upper holder block made of elastic material, on the one hand benefit
It avoids damaging pin and pad with the softness of elastic material, on the other hand will be locked using the screen resilience of elastic material
The external screw thread clamping of the driving wheel and guide post of tight nut lower end is formed self-locking to prevent from loosening during the test.
Based on the above technical solution, the sliding rail for installation and adjustment slide unit is provided on the bottom plate.
Slide unit horizontal sliding on bottom plate along sliding rail is adjusted, the difficulty for adjusting operation is not only reduced, is conducive to improve and survey
The efficiency of examination, and can guarantee that the pin of optical assembly is being to move horizontally with the adjustment process of pcb board pad, reduce optical assembly pipe
A possibility that foot damages, to reduce production cost.
It based on the above technical solution, further include positioned at the regulating device for adjusting slide unit side, regulating device includes
The adjusting support being fixedly mounted on bottom plate adjusts support and is provided with the through-hole for installation and adjustment bar, and adjusting rod one end passes through logical
Hole is connect with slide unit is adjusted.
It is driven by adjusting rod and adjusts slide unit horizontal sliding on bottom plate, reduced the difficulty for adjusting operation, be conducive to mention
The efficiency of height test.
Based on the above technical solution, the adjusting support lower part is connect by reset spring with slide unit is adjusted.
Slide unit will be adjusted using the pulling force of reset spring to draw close to support is adjusted, it is ensured that adjust the timely return of slide unit.
Based on the above technical solution, the outer surface of the adjusting rod is equipped with graduation mark.
The optical assembly of the same specifications and models corresponds to roughly the same graduation mark on test fixture, to different size type
Number optical assembly when being tested, first adjusting rod is transferred to respectively at corresponding graduation mark, then slightly carrying out accurate adjustment section can will
The pin of optical assembly is aligned with the pad locations of PCB circuit board, substantially reduces the time of operation, promotes the test effect of optical assembly
Rate.
Based on the above technical solution, the adjusting rod includes coarse control rod, fine control rod and motion bar, coarse control rod and essence
Adjusting bar is hollow loop bar, and the internal diameter of coarse control rod is less than the internal diameter of fine control rod, and coarse control rod is mounted in the bearing block of through-hole, living
Lever one end is fixedly connected with slide unit is adjusted, and the motion bar other end is threadedly coupled by coarse control rod with fine control rod.
Using internal diameter, equal coarse control rod and fine control rod are not threadedly coupled with motion bar respectively, pass through rotation coarse control rod or accurate adjustment
Bar realizes thick/thin two-stage adjusting to motion bar respectively, and then realizes and adjust to thick/thin two-stage for adjusting slide unit, adjusts operation
It is more convenient, be conducive to the Efficiency and accuracy for improving test.
Based on the above technical solution, the pressing device and adjusting slide unit include two or more.
It is matched by a pressing device with an adjusting slide unit, two pressing devices and adjusts slide unit and can be realized pair
It is tested while TOSA component and ROSA component, greatly improves the efficiency for improving test.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the utility model.
Fig. 2 is the right side structural representation of the utility model.
Fig. 3 is the overlooking structure diagram of the utility model.
Fig. 4 is the schematic cross-sectional view of pressing device in the utility model.
Fig. 5 is the schematic cross-sectional view of adjusting rod in the utility model.
In figure: 1-PCB circuit board, 2- pressing device, 3- graduation mark, 4- optical assembly to be measured, 5- regulating device, 6- circuit board
Fixing seat, 7- boss, 8- bottom plate, 9- sliding rail, 10- adjusting rod, 11- adjust support, 12- reset spring, and 13- adjusts slide unit, 14-
Groove, 15- locking piece, 16- upper holder block, 17- locking nut, 18- guide post, 19- lower lock block, 20- pressure sensor, 21- coarse adjustment
Bar, 22- fine control rod, 23- motion bar, 24- bearing block, 25- driving wheel.
Specific embodiment
The embodiments of the present invention are described in further detail below in conjunction with attached drawing.
Embodiment 1: a kind of shown in Figure 1, optical assembly test fixture, including bottom plate 8 are provided with circuit board on bottom plate 8
Fixing seat 6, circuit board fixing seat 6 are provided with multiple boss 7 in the corresponding position with location hole in PCB circuit board 1, using screw,
PCB circuit board 1 is removably mounted on the boss 7 of circuit board fixing seat 6 by bolt, fixed pin or other fasteners.Pass through
The fixed PCB circuit board 1 of multiple boss 7, not only ensures that PCB circuit board 1 will not move in adjusting or test process, but also significantly
The contact area for reducing PCB circuit board 1 and circuit board fixing seat 6, can reduce fixed operation to the greatest extent to caused by PCB circuit board 1
Loss, installation and removal are also more convenient.
Referring to figure 1 and figure 2, circuit board fixing seat 6 is equipped with pressing device 2, and pressing device 2 is used for optical assembly
Pin and the pad of PCB circuit board clamp.Pressing device 2 includes pressure sensor 20, and pressure sensor 20 is preferably foil gauge
Formula pressure sensor for detecting the clamping force of pin and pad, and will test signal and be transmitted to display device, to pressure value into
Row display.The adjusting slide unit for the pin of optical assembly 4 to be measured to be aligned with the pad of PCB circuit board 1 is provided on bottom plate 8
13。
It is matched using slide unit 13 is adjusted with circuit board fixing seat 6, so that the pin and PCB circuit board of optical assembly to be measured 4
Pad be located at same level height, greatly reduce the operation difficulty of existing test.PCB circuit board is first fixed on circuit board
In fixing seat 6, then by adjusting the horizontal sliding on bottom plate 8 of slide unit 13, by the pad position of the pin of optical assembly and PCB circuit board
Alignment is set, is finally clamped the pin of optical assembly and the pad of PCB circuit board using pressing device 2, while using pressure sensing
Device 20 detects the clamping force of pin and pad in time, ensures the two in detection process each time sufficiently using accurate pressure value
Identical pressured state is contacted and kept, optical assembly pin easy positioning and human factor in conventional measurement test stand is overcome to cause
Testing differentia, to ensure the accuracy and consistency of testing result.
Embodiment 2: shown in Figure 3, on the basis of embodiment 1, the adjusting slide unit 13 is mounted on and pressing device 2
On the bottom plate 8 of corresponding position, adjust slide unit 13 can the horizontal sliding on bottom plate 8, adjust slide unit 13 top surface be provided with for place to
The groove 14 of optical assembly 4 is surveyed, the side for adjusting slide unit 13 is provided with locking piece 15, and locking piece 15 can be screw or buckle, is used for
Optical assembly 4 to be measured is fixed in groove 14, overcomes the problems, such as that optical assembly pin is easy positioning in conventional measurement test stand, avoids drawing
The reflection for playing detection signal causes frequency spectrum loss to influence, and is conducive to the accuracy for improving optical assembly test.
Embodiment 3: shown in Figure 4, on the basis of embodiment 1, the pressing device 2 further includes upper holder block 16 under
Briquetting 19, lower lock block 19 are fixedly mounted in circuit board fixing seat 6, and lower lock block 19 is provided with externally threaded guide post 18, upper pressure
Block 16 is mounted on the top of lower lock block 19 by guide post 18, and upper holder block 16 is provided with locking nut 17,17 lower end of locking nut with
The driving wheel 25 being set in outside guide post 18 is sequentially connected, and the internal screw thread of driving wheel 25 is meshed with 18 external screw thread of guide post, passes through rotation
Twisting locking nut 17 drives driving wheel 25 to rotate, to drive upper holder block 16 to move up and down along guide post 18, by the pin of optical assembly
It is clamped with the pad of PCB circuit board, it is ensured that the two comes into full contact in the detection process and keep pressured state, to improve test
Accuracy and consistency.Pressure sensor 20 is mounted on the bottom surface of upper holder block 16, for detecting the clamping force of pin and pad.
In preferred scheme, upper holder block 16 is mounted on the top of lower lock block 19 by two guide posts 18, outside two guide posts 18
For the hand of spiral of screw thread on the contrary, by screwing locking nut 17 while two driving wheels 25 being driven to rotate, two driving wheels 25 are right
Claim driving upper holder block 16 to move up and down along guide post 18, effectively prevent upper holder block 16 to tilt during testing and clamping, be conducive to mention
The accuracy and consistency of height test.
Embodiment 4: on the basis of embodiment 3, the upper holder block 16 is using rubber, silica gel or other elastic material systems
At.The pin of optical assembly and the pad of PCB circuit board are clamped using upper holder block 16 made of elastic material, on the one hand utilize bullet
Property material softness avoid damaging pin and pad, on the other hand using the screen resilience of elastic material by locking screw
The external screw thread clamping of the driving wheel 25 and guide post 18 of female 17 lower ends is formed self-locking to prevent from loosening during the test.
Embodiment 5: it is shown in Figure 3, on the basis of embodiment 1, it is provided on the bottom plate 8 sliding for installation and adjustment
The sliding rail 9 of platform 13, adjusting slide unit 13 can the horizontal sliding on bottom plate 8 along sliding rail 9.By the horizontal sliding of sliding rail 9, not only reduce
The difficulty for adjusting operation is conducive to the efficiency for improving test, and can guarantee the pin of optical assembly in the adjusting with pcb board pad
A possibility that process is to move horizontally, and reduces the damage of optical assembly pin, to reduce production cost.
Embodiment 6: shown in Figure 1, on the basis of embodiment 1, the test fixture further includes being located to adjust slide unit
The regulating device 5 of 13 sides, regulating device 5 include adjusting support 11 and adjusting rod 10, adjust support 11 and are fixedly mounted on bottom plate 8
On, it adjusts support 11 and is provided with the through-hole for installation and adjustment bar 10,10 one end of adjusting rod passes through the through-hole and tune for adjusting support 11
It saves slide unit 13 to connect, adjusts the horizontal sliding on bottom plate 8 of slide unit 13 for driving.
Embodiment 7: shown in Figure 1, on the basis of embodiment 6,11 lower part of adjusting support passes through reset spring
12 connect with slide unit 13 is adjusted, and will adjust slide unit 13 using the pulling force of reset spring 12 and draw close to support 11 is adjusted, it is ensured that adjust
The timely return of slide unit 13.
Embodiment 8: shown in Figure 3, on the basis of embodiment 6, the outer surface of the adjusting rod 10 is equipped with graduation mark
3, the optical assembly of the same specifications and models corresponds to roughly the same graduation mark 3 on test fixture, to different size model
When optical assembly is tested, first adjusting rod 10 is transferred to respectively at corresponding graduation mark 3, then slightly carrying out accurate adjustment section can be by light
The pin of component is aligned with the pad locations of PCB circuit board, substantially reduces the time of operation, promotes the test effect of optical assembly
Rate.
Embodiment 9: shown in Figure 5, on the basis of embodiment 6, the adjusting rod 10 includes coarse control rod 21, fine control rod
22 and motion bar 23, coarse control rod 21 and fine control rod 22 are hollow loop bar, and the internal diameter of coarse control rod 21 is less than the interior of fine control rod 22
The inner surface of diameter, coarse control rod 21 and fine control rod 22 is respectively equipped with the internal screw thread matched with 23 external screw thread of motion bar, coarse control rod 21
It is mounted in the bearing block 24 of through-hole.23 one end of motion bar with adjust slide unit 13 be fixedly connected, 23 other end of motion bar successively with
Coarse control rod 21 and fine control rod 22 are threadedly coupled.Using the not equal coarse control rod 21 of internal diameter and fine control rod 22 respectively with 23 screw thread of motion bar
Connection realizes thick/thin two-stage adjusting to motion bar 23 by rotation coarse control rod 21 or fine control rod 22 respectively, and then realizes and exchange
Thick/thin two-stage for saving slide unit 13 is adjusted, and adjusts more convenient operation, is conducive to the Efficiency and accuracy for improving test.
Embodiment 10: it is shown in Figure 1, on the basis of any one embodiment of embodiment 1-9,2 He of pressing device
Adjusting slide unit 13 includes two or more, and a pressing device 2 is matched with an adjusting slide unit 13, two 2 Hes of pressing device
Adjusting slide unit 13 can be realized test while to TOSA component and ROSA component, greatly improve the efficiency for improving test.In addition,
Two pieces of PCB circuit boards 1 can be mounted in circuit board fixing seat 6, can be realized light group according to the needs of optical module assembling product
The test of part and two pieces of PCB circuit boards improves the qualification rate of optical module product.
The utility model is not only limited to above-mentioned preferred forms, anyone can obtain under the enlightenment of the utility model
Other various forms of products out, however, make any variation in its shape or structure, it is all to have and the utility model phase
Same or similar technical solution, within its protection scope.
Claims (10)
1. a kind of optical assembly test fixture, including bottom plate (8), it is characterised in that: be provided with circuit board on the bottom plate (8) and fix
Seat (6) is provided with pressing device (2) and multiple boss (7) in circuit board fixing seat (6), and pressing device (2) includes pressure sensing
Device (20) is provided with the adjusting for the pin of optical assembly to be measured (4) to be aligned with the pad of PCB circuit board (1) on bottom plate (8)
Slide unit (13).
2. a kind of optical assembly test fixture as described in claim 1, it is characterised in that: the adjustings slide unit (13) be mounted on and
On the bottom plate (8) of pressing device (2) corresponding position, the top surface for adjusting slide unit (13) is provided with groove (14), adjusts the side of slide unit (13)
Face is provided with locking piece (15).
3. a kind of optical assembly test fixture as described in claim 1, it is characterised in that: the pressing device (2) further includes peace
Lower lock block (19) on circuit board fixing seat (6), lower lock block (19) are provided with externally threaded guide post (18), upper holder block
(16) top of lower lock block (19) is mounted on by guide post (18), upper holder block (16) is provided with locking nut (17), locking nut
(17) lower end is sequentially connected with the driving wheel (25) of guide post (18) outside is set in.
4. a kind of optical assembly test fixture as claimed in claim 3, it is characterised in that: the upper holder block (16) is using elastic material
Material is made.
5. a kind of optical assembly test fixture as described in claim 1, it is characterised in that: be provided with and be used on the bottom plate (8)
The sliding rail (9) of installation and adjustment slide unit (13).
6. a kind of optical assembly test fixture as described in claim 1, it is characterised in that: further include being located to adjust slide unit (13) one
The regulating device (5) of side, regulating device (5) include the adjusting support (11) being fixedly mounted on bottom plate (8), are adjusted support (11)
It is provided with the through-hole for installation and adjustment bar (10), adjusting rod (10) one end passes through through-hole and connect with slide unit (13) are adjusted.
7. a kind of optical assembly test fixture as claimed in claim 6, it is characterised in that: adjusting support (11) lower part passes through
Reset spring (12) is connect with slide unit (13) are adjusted.
8. a kind of optical assembly test fixture as claimed in claim 6, it is characterised in that: the outer surface of the adjusting rod (10) is set
There are graduation mark (3).
9. a kind of optical assembly test fixture as claimed in claim 6, it is characterised in that: the adjusting rod (10) includes coarse control rod
(21), fine control rod (22) and motion bar (23), coarse control rod (21) and fine control rod (22) are hollow loop bar, coarse control rod (21)
Internal diameter is less than the internal diameter of fine control rod (22), and coarse control rod (21) is mounted in the bearing block (24) of through-hole, motion bar (23) one end with
It adjusts slide unit (13) to be fixedly connected, motion bar (23) other end is threadedly coupled by coarse control rod (21) with fine control rod (22).
10. such as a kind of described in any item optical assembly test fixtures of claim 1-9, it is characterised in that: the pressing device (2)
It include two or more with slide unit (13) are adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821413533.2U CN208681405U (en) | 2018-08-30 | 2018-08-30 | A kind of optical assembly test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821413533.2U CN208681405U (en) | 2018-08-30 | 2018-08-30 | A kind of optical assembly test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208681405U true CN208681405U (en) | 2019-04-02 |
Family
ID=65887781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821413533.2U Active CN208681405U (en) | 2018-08-30 | 2018-08-30 | A kind of optical assembly test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208681405U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113369630A (en) * | 2021-05-06 | 2021-09-10 | 渤海造船厂集团有限公司 | Substrate welding jig |
-
2018
- 2018-08-30 CN CN201821413533.2U patent/CN208681405U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113369630A (en) * | 2021-05-06 | 2021-09-10 | 渤海造船厂集团有限公司 | Substrate welding jig |
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