CN114814553A - Flying probe testing device - Google Patents
Flying probe testing device Download PDFInfo
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- CN114814553A CN114814553A CN202210517200.9A CN202210517200A CN114814553A CN 114814553 A CN114814553 A CN 114814553A CN 202210517200 A CN202210517200 A CN 202210517200A CN 114814553 A CN114814553 A CN 114814553A
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- 239000000523 sample Substances 0.000 title claims abstract description 61
- 238000012360 testing method Methods 0.000 title claims abstract description 34
- 230000005540 biological transmission Effects 0.000 claims abstract description 26
- 238000009434 installation Methods 0.000 claims abstract description 6
- 238000006073 displacement reaction Methods 0.000 claims description 12
- 238000001514 detection method Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010417 needlework Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
- G01R31/2806—Apparatus therefor, e.g. test stations, drivers, analysers, conveyors
- G01R31/2808—Holding, conveying or contacting devices, e.g. test adapters, edge connectors, extender boards
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/06—Measuring leads; Measuring probes
- G01R1/067—Measuring probes
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Leads Or Probes (AREA)
Abstract
The invention relates to the technical field of electronic element detection, in particular to a flying probe testing device which comprises a flying probe, a mechanical arm and a mounting assembly, wherein the flying probe is arranged along a first axial direction, two ends of the flying probe are respectively a mounting end and a testing end, and the mounting end of the flying probe is abutted to the mechanical arm; the installation assembly comprises a sleeve, a plurality of ejector blocks and a transmission part, the sleeve is sleeved outside the flying needle, the plurality of ejector blocks are all positioned between the sleeve and the flying needle, and the plurality of ejector blocks are uniformly distributed around the circumference of the flying needle; the flying needle is clamped through the plurality of ejector blocks arranged in the circumferential direction of the flying needle, the transmission component enables the ejector blocks to rotate along the third circumferential direction to tightly eject the flying needle when the flying needle moves away from the direction of the mechanical arm, the transmission component enables the ejector blocks to move along the radial direction of the flying needle to tightly eject the flying needle when the flying needle moves close to the direction of the mechanical arm along the first axial direction, and therefore the flying needle obtains a better clamping effect, and the flying needle is more stably connected with the mechanical arm.
Description
Technical Field
The invention relates to the technical field of electronic element detection, in particular to a flying probe testing device.
Background
In the process of flying probe testing, the probe head of the flying probe is required to be contacted and pressed with a testing part on a PCB so as to test the open circuit and short circuit conditions of the PCB; the tail part of a flying probe in the existing flying probe testing device is usually fixed with a mechanical arm; in long-time test work, the needle head part of the flying needle frequently contacts and presses the detection part on the PCB, so that the tail part of the flying needle and the mechanical arm are loosened after the flying needle works for a period of time, and the test result is wrong.
Disclosure of Invention
The invention provides a flying probe testing device, which aims to solve the problem that the connection between the conventional flying probe and a mechanical arm is unreliable.
The flying probe testing device adopts the following technical scheme:
a flying probe testing device comprises a flying probe, a mechanical arm and a mounting assembly, wherein the flying probe is arranged along a first axial direction, two ends of the flying probe are respectively a mounting end and a testing end, and the mounting end of the flying probe is abutted to the mechanical arm; the installation assembly comprises a sleeve, a plurality of ejector blocks and a transmission part, the sleeve is sleeved outside the flying needle, the plurality of ejector blocks are all positioned between the sleeve and the flying needle, and the plurality of ejector blocks are uniformly distributed around the circumference of the flying needle; each jacking block can be arranged in a rotating mode around the second axial direction, the jacking blocks tightly jack the flying needle when rotating in the third circumferential direction, and the jacking blocks are far away from the flying needle when rotating in the fourth circumferential direction opposite to the third circumferential direction; the transmission part enables the ejector block to rotate in the third circumferential direction when the flying needle moves in the direction away from the mechanical arm in the first axial direction, the transmission part enables the ejector block to rotate in the fourth circumferential direction when the flying needle moves in the direction close to the mechanical arm in the first axial direction, the ejector block is enabled to move in the direction close to the flying needle in the radial direction of the flying needle, and the displacement of the ejector block moving close to the flying needle is larger than that of the ejector block moving away from the flying needle in the fourth circumferential direction.
Furthermore, the mounting assembly also comprises a connecting piece, the connecting piece is positioned in the sleeve, the mounting end of the flying needle is fixedly connected with the connecting piece, and the connecting piece is abutted against the mechanical arm; the transmission parts are multiple, and each transmission part comprises a first rack, a second rack, a third rack, a first gear and a second gear; the first rack, the second rack and the third rack are all arranged along a first axial direction, the first rack can be arranged on the connecting piece in a sliding mode along the radial direction of the flying needle, a pressure spring is arranged between the first rack and the connecting piece, and the pressure spring enables the first rack to be far away from the connecting piece; the second rack is fixed on the sleeve, and the first gear is rotatably arranged between the first rack and the second rack around a second axial direction, wherein the second axial direction is the tangential direction of the fly needle, and the second axial direction is vertical to the first axial direction; the ejector block is fixedly connected with the first gear; the second gear is fixedly connected with the first gear and is coaxial with the first gear; the third rack is slidably mounted in the sleeve along the first axial direction, an elastic piece is arranged between the third rack and the sleeve, and the elastic piece enables the third rack to move towards the direction away from the mechanical arm; the third rack comprises a tooth part and a plate part, the plate part is positioned on one side of the tooth part, which is far away from the mechanical arm, the width of the tooth part of the third rack in the radial direction of the fly needle is gradually increased along the first axial direction towards the mechanical arm, and the width increase degree of the tooth part of the third rack enables the displacement of the second gear moving towards the fly needle direction to be larger than the displacement of the ejector block moving away from the fly needle along with the second gear rotating along the fourth direction when the second gear moves towards the mechanical arm along the third rack; in the initial state, the second gear abuts against the plate part of the third rack, and the third rack enables the teeth of the tooth part to abut against one side, close to the mechanical arm, of the second gear under the action of the elastic piece.
Furthermore, two second gears of each transmission component are arranged, the two second gears are respectively positioned on two sides of the first gear along the second axial direction, and the diameter of each second gear is larger than that of each first gear; the second rack is positioned between the two second gears, and the second rack is meshed with the first gear and simultaneously limits the movement of the two second gears along the second axial direction.
Further, the connecting piece comprises a connecting block and a plurality of connecting rods, and the connecting block is abutted to the mechanical arm; every connecting rod all sets up along first axial, a plurality of connecting rods along connecting block circumference evenly distributed and all with connecting block fixed connection, the corresponding slidable mounting of first rack of every first drive disk assembly in a connecting rod.
Furthermore, the end face of one end, abutted against the flying needle, of the top block is an arc face.
Furthermore, the elastic part is a tension spring and is positioned on one side of the third rack far away from the mechanical arm.
The invention has the beneficial effects that: the flying probe testing device provided by the invention clamps the flying probe through the plurality of ejector blocks arranged in the circumferential direction of the flying probe, the transmission component enables the ejector blocks to rotate along the third circumferential direction to tightly push the flying probe when the flying probe moves towards the direction far away from the mechanical arm, and the transmission component enables the ejector blocks to move along the radial direction of the flying probe towards the direction close to the flying probe when the flying probe moves along the first axial direction towards the direction close to the mechanical arm to tightly push the flying probe, so that the flying probe can obtain a better clamping effect, and the flying probe can be more stably connected with the mechanical arm.
Furthermore, the flying probe testing device can be adapted to flying probes with different sizes, and the ejector block can generate appropriate clamping force on the flying probes with different sizes during primary clamping.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of the working state of an embodiment of the flying probe testing device of the present invention;
FIG. 2 is a front view of the overall structure of an embodiment of the flying probe test apparatus of the present invention;
FIG. 3 is a sectional view taken along line A-A of FIG. 2;
FIG. 4 is an enlarged view of FIG. 3 at C;
FIG. 5 is an exploded view of the overall structure of an embodiment of the flying probe testing device of the present invention;
FIG. 6 is a schematic structural diagram of a transmission component and a top block in an embodiment of the flying probe testing device of the present invention;
FIG. 7 is an exploded view of the drive member and top block configuration of an embodiment of the flying probe test apparatus of the present invention;
FIG. 8 is a schematic structural diagram of a first gear, a second gear and a top block in an embodiment of the flying probe testing device of the present invention;
FIG. 9 is a schematic diagram of a robotic arm and sleeve configuration in an embodiment of the flying probe test apparatus of the present invention;
FIG. 10 is a sectional view taken along line B-B of FIG. 9;
in the figure: 200. flying needles; 300. a mechanical arm; 400. mounting the component; 410. a sleeve; 420. a top block; 430. a transmission member; 431. a first rack; 432. a second rack; 433. a third rack; 434. a first gear; 435. a second gear; 436. an elastic member; 440. a connecting member; 441. connecting blocks; 442. a connecting rod.
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.
An embodiment of a flying probe test apparatus of the present invention, as shown in fig. 1-10, includes a flying probe 200, a robotic arm 300 and a mounting assembly 400,
the flying probe 200 is arranged along the first axial direction, two ends of the flying probe 200 are respectively an installation end and a test end, and the installation end of the flying probe 200 is abutted to the mechanical arm 300;
the mounting assembly 400 includes a sleeve 410, a plurality of top blocks 420 and a transmission member 430,
the sleeve 410 is sleeved outside the flying needle 200, the plurality of top blocks 420 are all positioned between the sleeve 410 and the flying needle 200, and the plurality of top blocks 420 are uniformly distributed around the circumference of the flying needle 200; the sleeve 410 slides a preset distance along the first axial direction and then is fixed with the mechanical arm 300;
each top block 420 can be arranged in a rotating mode around the second axial direction, the top blocks 420 tightly push the flying needle 200 when rotating in the third circumferential direction, and the top blocks 420 are far away from the flying needle 200 when rotating in the fourth circumferential direction opposite to the third circumferential direction; preferably, there are three top blocks 420, and the clamping effect of the three top blocks 420 on the flying needle 200 is the best;
the transmission member 430 causes the top block 420 to rotate in the third circumferential direction when the flying needle 200 moves away from the mechanical arm 300 in the first axial direction, the transmission member 430 causes the top block 420 to rotate in the fourth circumferential direction when the flying needle 200 moves close to the mechanical arm 300 in the first axial direction, and causes the top block 420 to move close to the flying needle 200 in the radial direction of the flying needle 200, and the displacement of the top block 420 moving close to the flying needle 200 is greater than the displacement of the top block 420 rotating away from the flying needle 200 in the fourth circumferential direction. The first axial direction is a vertical direction in fig. 2, the second axial direction is a tangential direction of the flying needle 200, and the second axial direction is perpendicular to the first axial direction.
In this embodiment, the mounting assembly 400 further includes a connecting member 440, the connecting member 440 is located in the sleeve 410, the mounting end of the flying probe 200 is fixedly connected to the connecting member 440, and the connecting member 440 abuts against the robot arm 300; the plurality of transmission members 430 are provided, and each transmission member 430 includes a first rack 431, a second rack 432, a third rack 433, a first gear 434 and a second gear 435; the first rack 431, the second rack 432 and the third rack 433 are arranged along the first axial direction, the first rack 431 can be installed on the connecting piece 440 in a sliding mode along the radial direction of the fly needle 200, and a compression spring (not shown in the figure) is arranged between the first rack 431 and the connecting piece 440 and used for urging the first rack 431 to be far away from the connecting piece 440; the second rack 432 is fixed on the sleeve 410, and the first gear 434 is rotatably mounted between the first rack 431 and the second rack 432 around the second axial direction and is meshed with the first rack 431 and the second rack 432 respectively; the top block 420 is fixedly connected with the first gear 434; the second gear 435 is fixedly connected with the first gear 434 and is coaxial with the first gear 434; the third rack 433 is slidably mounted on the sleeve 410 along the first axial direction, and the third rack 433 is in frictional contact with the sleeve 410; an elastic member 436 is arranged between the third rack 433 and the sleeve 410, and the elastic member 436 urges the third rack 433 to move away from the robot arm 300; the third rack 433 comprises a tooth part and a plate part, the plate part is located on one side of the tooth part, which is far away from the mechanical arm 300, teeth of the third rack 433 are distributed on the plate part, and the teeth extend along the radial direction of the fly needle 200; the width of the tooth part of the third rack 433 in the radial direction of the flying needle 200 gradually increases along the first axial direction toward the robot arm 300, and the width of the tooth part of the third rack 433 increases to such an extent that when the second gear 435 moves along the third rack 433 toward the direction approaching the robot arm 300, the displacement of the second gear 435 toward the flying needle 200 is greater than the displacement of the top block 420 away from the flying needle 200 as the second gear 435 rotates in the fourth circumferential direction; in the initial state, the second gear 435 abuts against the plate portion of the third rack 433, and the third rack 433 abuts against the teeth of the teeth portion with the elastic member 436 on the side of the second gear 435 closer to the robot arm 300.
During installation, the flying probe 200 is manually fixed, and the sleeve 410 is pushed towards the direction close to the mechanical arm 300 along the first axial direction; when the sleeve 410 drives the second rack 432 to move in the direction approaching the mechanical arm 300 along the first axial direction relative to the flying probe 200, the second rack 432 drives the first gear 434 to rotate in the third circumferential direction and move the first gear 434 in the direction approaching the mechanical arm 300, the second gear 435 rotates in the third circumferential direction along with the first gear 434 and pushes the third rack 433 to move in the direction approaching the mechanical arm 300, and meanwhile, the sleeve 410 drives the third rack 433 to synchronously move in the direction approaching the mechanical arm 300 through the elastic member 436, so that the second gear 435 is in contact with the plate portion of the third rack 433, and the teeth of the teeth portion of the third rack 433 are in contact with the side of the second gear 435 close to the mechanical arm 300. The top block 420 rotates with the first gear 434 to be tightly pressed against the flying probe 200, and then fixes the sleeve 410 to the robot 300, specifically, a threaded hole may be provided on the robot 300, a long hole along the first axial direction may be provided on the sleeve 410, and after the sleeve 410 slides a predetermined distance with respect to the robot 300, a bolt may be inserted through the long hole on the sleeve 410 and installed in the threaded hole on the robot 300 to fix the sleeve 410 to the robot 300.
The flying needle 200 shakes in the first axial direction under the action of an external force in the subsequent use process, if the flying needle 200 moves in the direction away from the mechanical arm 300 in the first axial direction, the flying needle 200 can drive the first rack 431 to move in the direction away from the mechanical arm 300 relative to the second rack 432, and further drive the first gear 434 to rotate in the third circumferential direction and move in the direction close to the mechanical arm 300, so that the top block 420 is further abutted against the flying needle 200, the ejection force of the top block 420 on the flying needle 200 is increased, and the flying needle 200 is prevented from further moving in the direction away from the mechanical arm 300; if the flying probe 200 moves in the first axial direction to approach the robot 300, the flying probe 200 will drive the first rack 431 to move in the direction to approach the robot 300 relative to the second rack 432, thereby driving the first gear 434 to rotate along the fourth direction and move towards the direction close to the mechanical arm 300, when the second gear 435 rotates along the fourth direction along with the first gear 434 and moves towards the direction close to the mechanical arm 300, the second gear 435 is engaged with the tooth part of the third rack 433, and the position of engagement of the second gear 435 with the third rack 433 is moved to a direction close to the robot arm 300, the second gear 435 is pushed by the third rack 433 to move in the direction close to the flying probe 200, and drives the first gear 434 and the top block 420 to move in the direction close to the flying probe 200, meanwhile, the first rack 431 is extruded towards the direction close to the flying needle 200, and the distance between the top block 420 and the flying needle 200 is reduced, so that the jacking force of the top block 420 on the flying needle 200 is further increased; while the top block 420 tightly pushes the flying pin 200, the third rack 433 further tightly pushes the inner wall of the sleeve 410 under the pressing of the second gear 435 in the radial direction of the flying pin 200, so that the friction force between the third rack 433 and the sleeve 410 is increased, and the third rack 433 is hindered from moving under the action of the elastic member 436.
In the present embodiment, there are two second gears 435 of each transmission member 430, the two second gears 435 are respectively located at two sides of the first gear 434 along the second axial direction, and the diameter of the second gear 435 is larger than that of the first gear 434; the second rack 432 is located between the two second gears 435, and the second rack 432 is engaged with the first gear 434 while restricting the movement of the two second gears 435 in the second axial direction. The larger the difference between the diameter of the second gear 435 and the diameter of the first gear 434 is, the larger the displacement of the third rack 433 moving by the second gear 435 when the second gear 435 rotates by the same angle as the first gear 434, and the larger the displacement of the second gear 435 moving closer to the flying pin 200 by pushing the third rack 433 when the second gear 435 moves in the direction closer to the robot arm 300 with respect to the third rack 433, and the closer the flying pin 200 is to the top block 420.
In the present embodiment, the connection member 440 includes a connection block 441 and a plurality of connection rods 442, the connection block 441 abutting against the robot arm 300; each connecting rod 442 is arranged along the first axial direction, the connecting rods 442 are uniformly distributed along the circumferential direction of the connecting block 441 and are fixedly connected with the connecting block 441, the first rack 431 of each first transmission component 430 is correspondingly and slidably mounted on one connecting rod 442, specifically, one side of each connecting rod 442, which is far away from the connecting block 441, is provided with a sliding groove, and the first rack 431 is slidably mounted on the sliding groove along the radial direction of the flying needle 200 and is connected with the bottom of the sliding groove through a pressure spring.
In the present embodiment, the end surface of the tip piece 420 at the end abutting against the flying needle 200 is a curved surface.
In the present embodiment, the elastic member 436 is a tension spring, and the elastic member 436 is located on a side of the third rack 433 away from the robot arm 300.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. The utility model provides a flying probe testing arrangement which characterized in that: the test device comprises a flying needle, a mechanical arm and a mounting assembly, wherein the flying needle is arranged along a first axial direction, two ends of the flying needle are respectively a mounting end and a testing end, and the mounting end of the flying needle is abutted to the mechanical arm; the installation assembly comprises a sleeve, a plurality of ejector blocks and a transmission part, the sleeve is sleeved outside the flying needle, the plurality of ejector blocks are all positioned between the sleeve and the flying needle, and the plurality of ejector blocks are uniformly distributed around the circumference of the flying needle; each jacking block can be arranged in a rotating mode around the second axial direction, the jacking blocks tightly jack the flying needle when rotating in the third circumferential direction, and the jacking blocks are far away from the flying needle when rotating in the fourth circumferential direction opposite to the third circumferential direction; the transmission part enables the ejector block to rotate in the third circumferential direction when the flying needle moves in the direction away from the mechanical arm in the first axial direction, the transmission part enables the ejector block to rotate in the fourth circumferential direction when the flying needle moves in the direction close to the mechanical arm in the first axial direction, the ejector block is enabled to move in the direction close to the flying needle in the radial direction of the flying needle, and the displacement of the ejector block moving close to the flying needle is larger than that of the ejector block moving away from the flying needle in the fourth circumferential direction.
2. The flying probe testing device of claim 1, wherein: the mounting assembly further comprises a connecting piece, the connecting piece is positioned in the sleeve, the mounting end of the flying needle is fixedly connected with the connecting piece, and the connecting piece is abutted to the mechanical arm; the transmission parts are multiple, and each transmission part comprises a first rack, a second rack, a third rack, a first gear and a second gear; the first rack, the second rack and the third rack are all arranged along a first axial direction, the first rack can be arranged on the connecting piece in a sliding mode along the radial direction of the flying needle, a pressure spring is arranged between the first rack and the connecting piece, and the pressure spring enables the first rack to be far away from the connecting piece; the second rack is fixed on the sleeve, and the first gear is rotatably arranged between the first rack and the second rack around a second axial direction, wherein the second axial direction is the tangential direction of the fly needle, and the second axial direction is vertical to the first axial direction; the ejector block is fixedly connected with the first gear; the second gear is fixedly connected with the first gear and is coaxial with the first gear; the third rack is slidably mounted in the sleeve along the first axial direction, an elastic piece is arranged between the third rack and the sleeve, and the elastic piece enables the third rack to move towards the direction away from the mechanical arm; the third rack comprises a tooth part and a plate part, the plate part is positioned on one side of the tooth part, which is far away from the mechanical arm, the width of the tooth part of the third rack in the radial direction of the fly needle is gradually increased along the first axial direction towards the mechanical arm, and the width increase degree of the tooth part of the third rack enables the displacement of the second gear moving towards the fly needle direction to be larger than the displacement of the ejector block moving away from the fly needle along with the second gear rotating along the fourth direction when the second gear moves towards the mechanical arm along the third rack; in the initial state, the second gear abuts against the plate part of the third rack, and the third rack enables the teeth of the tooth part to abut against one side, close to the mechanical arm, of the second gear under the action of the elastic piece.
3. The flying probe testing device of claim 2, wherein: the number of the second gears of each transmission part is two, the two second gears are respectively positioned on two sides of the first gear along the second axial direction, and the diameter of each second gear is larger than that of each first gear; the second rack is positioned between the two second gears, and the second rack is meshed with the first gear and simultaneously limits the movement of the two second gears along the second axial direction.
4. The flying probe testing device of claim 2, wherein: the connecting piece comprises a connecting block and a plurality of connecting rods, and the connecting block is abutted to the mechanical arm; every connecting rod all sets up along first axial, a plurality of connecting rods along connecting block circumference evenly distributed and all with connecting block fixed connection, the corresponding slidable mounting of first rack of every first drive disk assembly in a connecting rod.
5. The flying probe testing device of claim 1, wherein: the end face of one end of the ejector block, which is abutted to the flying needle, is an arc face.
6. The flying probe testing device of claim 2, wherein: the elastic part is a tension spring and is positioned on one side of the third rack far away from the mechanical arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210517200.9A CN114814553B (en) | 2022-05-13 | 2022-05-13 | Flying probe testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210517200.9A CN114814553B (en) | 2022-05-13 | 2022-05-13 | Flying probe testing device |
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| CN114814553A true CN114814553A (en) | 2022-07-29 |
| CN114814553B CN114814553B (en) | 2023-11-03 |
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| CN202210517200.9A Active CN114814553B (en) | 2022-05-13 | 2022-05-13 | Flying probe testing device |
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| CN114814553B (en) | 2023-11-03 |
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