CN113776778A - General test fixture for crimping optical module - Google Patents
General test fixture for crimping optical module Download PDFInfo
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- CN113776778A CN113776778A CN202111103107.5A CN202111103107A CN113776778A CN 113776778 A CN113776778 A CN 113776778A CN 202111103107 A CN202111103107 A CN 202111103107A CN 113776778 A CN113776778 A CN 113776778A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 53
- 238000002788 crimping Methods 0.000 title claims description 28
- 238000012812 general test Methods 0.000 title claims description 4
- 238000003825 pressing Methods 0.000 claims abstract description 84
- 238000012360 testing method Methods 0.000 claims abstract description 31
- 239000011159 matrix material Substances 0.000 claims description 8
- 230000006835 compression Effects 0.000 abstract description 9
- 238000007906 compression Methods 0.000 abstract description 9
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 210000003734 kidney Anatomy 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
Abstract
The invention discloses a universal test fixture for a compression-joint optical module, which comprises a supporting seat, wherein a mounting plate is arranged at the top of the supporting seat, the compression-joint optical module is positioned below the mounting plate, a threaded hole is formed in the mounting plate, a screw rod is arranged in the threaded hole, the bottom of the screw rod is rotatably connected with a lower pressing piece, a rotation stopping piece for avoiding the rotation of the lower pressing piece is also arranged at the bottom of the mounting plate, an elastic piece is arranged at the bottom of the lower pressing piece, a pressing plate is arranged at the bottom of the elastic piece, and the pressing plate is positioned above the compression-joint optical module. The invention has the beneficial effects that: the stress on the surface of the whole compression joint optical module is uniform, the accuracy of a test result is improved, and the test reliability of the test fixture is ensured; the size of positive pressure can be controlled more accurately by changing the compression length of the spring, so that the elastic sheet of the optical module product is not subjected to too large force to influence the service life, and the deformation of a test result caused by too small force is avoided.
Description
Technical Field
The invention relates to a test of a compression joint optical module, in particular to a universal test fixture for the compression joint optical module.
Background
The prior art is when testing optical module product, and the power of pressing on the optical module shell is not vertical decurrent, and the stress surface is little, leads to the atress of whole optical module product inhomogeneous to make the test result inaccurate, and prior art design is the quick clamping mechanism who utilizes four-bar linkage moreover, presses the optical module product on surveying the board, guarantees signal intercommunication between optical module and the test edition, this scheme shortcoming:
1. the dead point position clamped by the four-bar mechanism is fixed, and optical modules with different heights cannot be fixed;
2. the rotating shaft is connected by rivets, and the rotating shaft is easy to loosen after long-time use, so that the rotating shaft cannot be clamped;
3. the clamping force is fixed, and the center is stressed the most, which may cause uneven stress on the spring (the connector between the plates for transmitting electrical signals) and poor performance.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a universal test fixture for a compression joint optical module, which is used for solving the problem that the stress of an elastic sheet is not uniform in the process of testing the compression of a product and the problem that the pressure of the product is uncontrollable in the process of testing the stress.
The purpose of the invention is realized by the following technical scheme: the utility model provides a general test fixture of crimping optical module, includes the supporting seat, and the top of supporting seat has the mounting panel, and the crimping optical module is located the mounting panel below, sets up threaded hole on the mounting panel, installs the screw rod in the threaded hole, and the bottom of screw rod is rotated and is connected with down-pressing piece, and the bottom of mounting panel is still installed and is avoided down-pressing piece pivoted to end the piece, and the bottom of down-pressing piece is installed the elastic component, and the clamp plate is installed to the bottom of elastic component, and the clamp plate is located the crimping optical module directly over.
Optionally, the upper surface of the lower pressing piece is provided with a blind hole, the blind hole is in a step shape with a small upper part and a large lower part, a bearing is sleeved in a large hole at the bottom of the blind hole, and the bottom of the screw penetrates into the bearing from the blind hole and is sleeved in the bearing.
Optionally, a guide groove is formed in one side, close to the lower pressing piece, of the rotation stopping piece, a protruding rotation stopping portion is arranged on the outer side wall of the lower pressing piece, and the rotation stopping portion is in sliding fit with the guide groove.
Optionally, the bottom of the pressing piece is provided with a mounting groove, the top of the elastic piece is located in the mounting groove, the top of the pressing plate is provided with a sinking groove, and the bottom of the elastic piece is located in the sinking groove.
Optionally, the pushing component comprises a pushing part a and a pushing part b, the pushing part b and the pushing part a are spliced and connected, part of the blind holes are located on the pushing part a, and the other part of the blind holes are located on the pushing part b.
Optionally, the pushing part a comprises a bottom plate, a pressing block is arranged at the top of the bottom plate, the side wall, close to the pushing part b, of the pressing block is an assembly surface a, a stepped groove a is formed in the assembly surface a, the side wall, close to the pressing block, of the pushing part a is an assembly surface b, a stepped groove b is formed in the assembly surface b, and after the pushing part a and the pushing part b are assembled, the stepped groove b and the stepped groove a form a blind hole.
Optionally, the assembly surfaces a on the two sides of the stepped groove a are provided with screw holes, the assembly surfaces on the two sides of the stepped groove b are provided with counter bores, locking screws are installed in the counter bores, and the locking screws are locked with the corresponding screw holes.
Optionally, the number of the mounting grooves is four, the mounting grooves are distributed in a matrix, the number of the sinking grooves is four, the sinking grooves are also distributed in a matrix, and the elastic piece is a spring.
Optionally, a handle is arranged at the top of the screw rod.
Optionally, the supporting seat includes base, regulating plate and support frame, and the support frame is Z shape structure, has seted up the locking screw on the base, and the top of support frame is the mounting panel, and the bottom of support frame has seted up logical groove for adjusting the seat on adjusting the seat, and the regulating plate is placed on adjusting the seat, and has seted up the kidney slot on the regulating plate, and fastening screw is installed to the kidney slot, and fastening screw passes logical groove and locks with the locking screw.
The invention has the following advantages:
1. when the pressure welding type optical module product is tested, the stress on the surface of the whole pressure welding optical module is uniform, the accuracy of a test result is improved, and the test reliability of a test fixture is ensured;
2. the invention can accurately control the magnitude of the positive pressure by changing the compression length of the spring, so that the elastic sheet of the optical module product is not stressed too much to influence the service life, and the deformation of the test result caused by too small stress is avoided;
3. the invention can be well compatible with the change of the surface size and the thickness of the optical module, ensures that the downward force is positive and the positive pressure is adjusted equally, and the contact surface of the pressing plate contains the surface of the whole optical module to be tested, thus no mark is generated on the surface of the optical module shell after the test is finished, and the coating of the product shell is not influenced.
Drawings
FIG. 1 is a first schematic structural diagram of the present invention;
FIG. 2 is a second schematic structural view of the present invention;
FIG. 3 is a schematic view in half section of the present invention;
FIG. 4 is a schematic view showing the connection of the pressing member, the elastic member and the pressing plate;
FIG. 5 is a schematic diagram of the exploded structure of FIG. 4;
FIG. 6 is a schematic view of the structure of the hold-down;
in the figure, 1-supporting seat, 2-screw rod, 3-down pressing piece, 4-rotation stopping piece, 5-elastic piece, 6-pressing plate, 7-pressing optical module, 8-handle, 9-bearing, 11-base, 12-supporting frame, 13-adjusting plate, 14-mounting plate, 15-stepped hole, 30-blind hole, 31-down pressing part a, 32-down pressing part b, 33-rotation stopping part, 34-screw hole, 35-sink groove, 36-counter hole, 37-stepped groove a, 38-stepped groove b, 311-bottom plate, 312-pressing block, 313-assembling surface a and 314-assembling surface b.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that the products of the present invention conventionally lay out when in use, or orientations or positional relationships that are conventionally understood by those skilled in the art, which are merely for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, 2 and 3, a universal test fixture for crimping optical modules comprises a supporting seat 1, a mounting plate 14 is arranged at the top of the supporting seat 1, in this embodiment, the supporting seat 1 comprises a base 11, an adjusting plate 13 and a supporting frame 12, the supporting frame 12 is in a Z-shaped structure, a locking screw hole is formed in the base 11, the mounting plate 14 is arranged at the top of the supporting frame 12, an adjusting seat is arranged at the bottom of the supporting frame 12, a through groove is formed in the adjusting seat, the adjusting plate 13 is placed on the adjusting seat, a kidney-shaped groove is formed in the adjusting plate 13, a fastening screw is installed in the kidney-shaped groove, the fastening screw passes through the through groove and is locked with the locking screw hole, the bottom of the base 11 is connected to the base through a screw, so as to fix the position of the base 11, the kidney-shaped groove of the adjusting seat is distributed front and back, when the adjusting seat is installed, the adjusting seat is placed on the base 11, then, the adjusting plate 13 is placed on the adjusting seat, and then screws pass through the kidney-shaped groove and the through groove and are locked with the base 11, so that the adjusting seat and the base 11 are installed, preferably, after the adjusting seat is installed, the left side wall and the right side wall of the adjusting seat are respectively flush with the left side wall and the right side wall of the base 11, the position of the crimping optical module 7 is fixed, and the position of the base 11 is also fixed, so that the positions of the base 11 and the crimping optical module 7 in the left and right directions are also fixed, the supporting seat 1 does not need to be adjusted left and right, but needs to be adjusted front and back, when the supporting seat 1 is adjusted front and back relative to the base 11, the screws are loosened, then the adjusting seat is moved back and forth relative to the base 11, and after the position of the adjusting seat is adjusted, the screws are locked, so that the adjusting plate 13, the adjusting seat and the base 11 are tightly pressed.
In this embodiment, the optical module 7 is located below the mounting plate 14, the mounting plate 14 is provided with a threaded hole, a screw 2 is installed in the threaded hole, the bottom of the screw 2 is rotatably connected with the lower pressing member 3, the bottom of the mounting plate 14 is also provided with a rotation stopping member 4 for preventing the rotation of the lower pressing member 3, the bottom of the lower pressing member 3 is provided with an elastic member 5, the bottom of the elastic member 5 is provided with a pressing plate 6, the pressing plate 6 is located right above the optical module 7, in this embodiment, as shown in fig. 4 and 5, the upper surface of the lower pressing member 3 is provided with a blind hole 30, the blind hole 30 is in a step shape with a small upper part and a large lower part, a bearing 9 is sleeved in a large hole at the bottom of the blind hole 30, the bottom of the screw 2 penetrates through the blind hole 30 and is sleeved in the bearing 9, when the screw 2 rotates, the screw 2 moves downward, the lower pressing member 3 moves along with the screw 2, during the movement of the screw 2, due to the existence of the rotation stopping member 4, screw rod 2 then pushes down 3 circumferential direction relatively, it is further, the guide way has been seted up to one side that is close to pushing down 3 on the spline 4, be provided with bellied spline portion 33 on pushing down 3's the lateral wall, spline in the 33 sliding fit guide way of portion, the guide way is vertical decurrent rectangular channel, and spline portion 33 is bellied rectangular block, the rectangular block then with rectangular channel sliding fit, when pushing down 3 down, the cooperation of rectangular channel and rectangular block, the rotation of pushing down 3 has been avoided, the descending straight line precision of pushing down 3 has also been guaranteed simultaneously, thereby make clamp plate 6 can aim at the contact of crimping optical module 7, the reliability of this test fixture has been guaranteed.
In this embodiment, the bottom of the lower pressing member 3 is provided with a mounting groove, the top of the elastic member 5 is located in the mounting groove, the top of the pressing plate 6 is provided with a sinking groove 35, the bottom of the elastic member 5 is located in the sinking groove 35, preferably, the four mounting grooves are distributed in a matrix, the four sinking grooves 35 are also distributed in a matrix, the elastic member 5 is a spring, the projection of the spring on the pressing plate 6 can be circular or waist-shaped, preferably, the projection of the spring on the pressing plate 6 is waist-shaped, therefore, the mounting groove and the sinking groove 35 are both rectangular grooves, the spring is arranged in the waist-shaped space, the space of the lower pressing member 3 can be used, when the spring is mounted, one end of the spring is placed in the sinking groove 35 and then glued and fixed, then the other end of the spring is placed in the mounting groove and glued and fixed, after the spring is mounted, four sides of the spring are all attached to the side walls of the corresponding sinking groove 35 and the mounting groove, therefore, the position of the spring is fixed, in the embodiment, the lower pressing piece 3 is a rectangular block, the mounting grooves are distributed on four corners of the lower pressing piece 3 in a matrix mode, the pressing plate 6 is a rectangular block, and the sinking grooves 35 are distributed on four corners of the pressing plate 6 in a matrix mode, so that after the pressing plate 6 is in contact with the compression optical module 7, the compression optical module 7 only can receive vertical downward force, the force is distributed uniformly, and the reliability of the test fixture is further guaranteed.
In this embodiment, as shown in fig. 6, the pressing member 3 includes a pressing portion a31 and a pressing portion b32, the pressing portion b32 and the pressing portion a31 are assembled and connected, a part of the blind holes 30 is located on the pressing portion a31, another part of the blind holes 30 is located on the pressing portion b32, preferably, one half of the blind holes 30 is located on the pressing portion a31, and the other half of the blind holes 30 is located on the pressing portion b32, preferably, the pressing portion a31 includes a bottom plate 311, a pressing block 312 is disposed on the top of the bottom plate 311, the pressing block 312 and the bottom plate 311 are L-shaped, a side wall of the pressing block 312 close to the pressing portion b32 is an assembly surface a313, a stepped groove a37 is disposed on the assembly surface a313, a side wall of the pressing portion a31 close to the pressing block 312 is an assembly surface b314, a stepped groove b38 is disposed on the assembly surface b314, after the pressing portion a31 and the pressing portion b32 are assembled, the stepped groove b 6866 and the assembly surface 32, the assembly surface of the blind holes are disposed on both sides of the pressing portion a 32 and the assembly surface 32, the assembly surfaces on two sides of the stepped groove b38 are provided with counter bores 36, locking screws are installed in the counter bores 36 and are locked with corresponding screw holes 34, after the locking screws are locked, the heads of the locking screws are located in the counter bores 36, when the pressing piece 3 is assembled, the bearing 9 is firstly sleeved at the bottom of the screw rod 2, the bottom of the screw rod 2 is a polished rod, then the bearing 9 is placed in a large groove of the stepped groove a37, at the moment, the outer ring of the bearing 9 is clamped by the large groove of the stepped groove a37, then the pressing part b32 is placed on the bottom plate 311, the assembly surface a313 and the assembly surface b314 are attached, the stepped groove a37 and the stepped groove b38 are assembled into the blind hole 30, at the moment, the bearing 9 is clamped by the large groove of the stepped groove a37 and the large groove of the stepped groove b38, the screw rod 2 penetrates out of the blind hole 30, and the screw rod 2 can rotate in the blind hole 30.
In this embodiment, the handle 8 is disposed on the top of the screw rod 2, and the handle 8 and the screw rod 2 can be connected by welding, so as to form a whole, and of course, the screw rod 2 and the handle 8 can also rotate synchronously by means of keys and key slots.
In this embodiment, the mounting plate 14 is provided with the stepped hole 15, the top of the rotation stopping member 4 is provided with the locking screw hole, when the rotation stopping member 4 is mounted, the rotation stopping member 4 is placed below the stepped hole 15, then the locking screw penetrates into the stepped hole 15, and the locking screw is screwed with the locking screw hole, so that the mounting of the rotation stopping member 4 is realized, after the locking screw is locked, the head of the locking screw is located in the large hole of the stepped hole 15, and the countersunk head type mounting of the locking screw is realized
The working process of the invention is as follows: during installation, the press block 312 needs to be adjusted to a position right above the crimping optical module 7 through the position adjusting block, so that when the press plate 6 is pressed downwards, the upper surface of the crimping optical module 7 is uniformly stressed and is uniformly transmitted to the positive pressure of the elastic sheet, during testing, the crimping optical module 7 is placed below the press plate 6, then the screw 2 is rotated, in the rotating process, due to the limit of the rotation stopping piece 4, the lower piece 3 on the whole screw 2 can only vertically move downwards, when the press plate 6 contacts the upper surface of the crimping optical module 7, the screw 2 is continuously rotated, the spring is compressed, so that the vertically downward force is generated to press the whole crimping optical module 7, the control of the downward pressure is achieved according to the spring shrinkage controlled by the rotating screw 2, when the press plate 6 contacts the upper surface of the crimping optical module 7, the screw 2 is continuously rotated, and the inner ring of the bearing 9 rotates along with the screw 2, and the outer ring of the bearing 9 is fixed by the matching of the step groove a37 and the step groove b38, so that the friction force is very small when the screw rod 2 is rotated, and the labor is saved even if the spring is completely compressed.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a general test fixture of crimping optical module which characterized in that: the optical module crimping device comprises a supporting seat, the top of supporting seat has the mounting panel, and the crimping optical module is located the mounting panel below, set up threaded hole on the mounting panel, the threaded hole installs the screw rod, the bottom of screw rod is rotated and is connected with down the piece, the bottom of mounting panel is still installed and is avoided pushing down a pivoted piece that ends, the elastic component is installed to the bottom of pushing down the piece, the clamp plate is installed to the bottom of elastic component, the clamp plate is located directly over the crimping optical module.
2. The universal test fixture for crimping optical modules as claimed in claim 1, wherein: the upper surface of the lower pressing piece is provided with a blind hole, the blind hole is in a step shape with a small upper part and a big lower part, a bearing is sleeved in a large hole at the bottom of the blind hole, and the bottom of the screw penetrates into the bearing from the blind hole and is sleeved in the bearing.
3. The universal test fixture for crimping optical modules as claimed in claim 1, wherein: the stop rotating part is provided with a guide groove on one side close to the lower pressing part, a convex stop rotating part is arranged on the outer side wall of the lower pressing part, and the stop rotating part is in sliding fit with the guide groove.
4. The universal test fixture for crimping optical modules as claimed in claim 1, wherein: the bottom of the lower pressing piece is provided with a mounting groove, the top of the elastic piece is positioned in the mounting groove, the top of the pressing plate is provided with a sinking groove, and the bottom of the elastic piece is positioned in the sinking groove.
5. The universal test fixture for crimping optical modules as claimed in claim 2, wherein: the pressing piece comprises a pressing part a and a pressing part b, the pressing part b and the pressing part a are connected in an assembled mode, part of the blind holes are located in the pressing part a, and the other part of the blind holes are located in the pressing part b.
6. The universal test fixture for crimping optical modules as claimed in claim 5, wherein: the blind hole is characterized in that the pressing part a comprises a bottom plate, a pressing block is arranged at the top of the bottom plate, the side wall, close to the pressing part b, of the pressing block is an assembly surface a, a stepped groove a is formed in the assembly surface a, the side wall, close to the pressing block, of the pressing part a is an assembly surface b, a stepped groove b is formed in the assembly surface b, and after the pressing part a and the pressing part b are assembled, the stepped groove b and the stepped groove a form the blind hole.
7. The universal test fixture for crimping optical modules as claimed in claim 6, wherein: the assembling face a positioned on two sides of the stepped groove a is provided with screw holes, the assembling face positioned on two sides of the stepped groove b is provided with counter bores, and the counter bores are internally provided with locking screws which are locked with the corresponding screw holes.
8. The universal test fixture for crimping optical modules as claimed in claim 4, wherein: the mounting groove is four, and is the matrix distribution, heavy groove is also four, just heavy groove is also the matrix distribution, the elastic component is the spring.
9. The universal test fixture for crimping optical modules as claimed in claim 1, wherein: the top of the screw rod is provided with a handle.
10. The universal test fixture for crimping optical modules as claimed in claim 1, wherein: the supporting seat comprises a base, an adjusting plate and a supporting frame, the supporting frame is of a Z-shaped structure, a locking screw hole is formed in the base, the top of the supporting frame is the mounting plate, the bottom of the supporting frame is an adjusting seat, a through groove is formed in the adjusting seat, the adjusting plate is placed on the adjusting seat, a kidney-shaped groove is formed in the adjusting plate, a fastening screw is installed in the kidney-shaped groove, and the fastening screw penetrates through the through groove and is locked with the locking screw hole.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111103107.5A CN113776778B (en) | 2021-09-18 | 2021-09-18 | General test fixture for crimping optical module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111103107.5A CN113776778B (en) | 2021-09-18 | 2021-09-18 | General test fixture for crimping optical module |
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| CN113776778A true CN113776778A (en) | 2021-12-10 |
| CN113776778B CN113776778B (en) | 2024-03-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114577455A (en) * | 2022-03-03 | 2022-06-03 | 武汉电信器件有限公司 | Optical module unlocking function detection device and use method thereof |
| CN114986409A (en) * | 2022-05-18 | 2022-09-02 | 苏州联讯仪器有限公司 | Clamping device for optical module, crimping box and error code testing equipment |
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