CN206515434U - A kind of flying probe tester - Google Patents
A kind of flying probe tester Download PDFInfo
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- CN206515434U CN206515434U CN201621347588.9U CN201621347588U CN206515434U CN 206515434 U CN206515434 U CN 206515434U CN 201621347588 U CN201621347588 U CN 201621347588U CN 206515434 U CN206515434 U CN 206515434U
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- clamping plate
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- inner panel
- frame
- peripheral
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Abstract
The utility model, which is related to, is provided with automatic clamping plate mechanism, test suite and the screw mandrel drive mechanism for driving the test suite movement in the underframe below a kind of flying probe tester, including frame and setting organic frame, the frame, it is characterised in that：The frame includes inner panel and the peripheral frame being fixedly connected around the inner panel and with the inner panel, and the automatic clamping plate mechanism and the screw mandrel drive mechanism are arranged at the inner panel.One inner panel is set in peripheral frame, peripheral frame is supported by an inner panel, function with reinforcement or floor, prevent peripheral frame from deforming, peripheral frame can effectively be reinforced, simultaneously or automatic clamping plate mechanism and screw mandrel drive mechanism direct fixed installation structure, by multiple function collection together in one, can effectively simplify the structure of frame.
Description
Technical field
The utility model is related to circuit board testing field, more specifically, is to be related to a kind of flying probe tester.
Background technology
It is of the prior art including frame and base, test suite, screw mandrel drive mechanism and automatic clamping plate are set in frame
Mechanism, automatic clamping plate mechanism is used to grip circuit board, and test suite is under the driving of screw mandrel drive mechanism on circuit board
Each part carry out performance test.Circuit board is precision electronic components, and the stability requirement to frame is higher.Usual frame
By the marble and more structure such as sturdy column is formed by connecting, and connection process is various, and rack construction is complicated, and exists
The not enough defect of intensity.
Utility model content
The purpose of this utility model is to provide a kind of flying probe tester, it is intended to which solution has flying probe in the prior art
The rack construction of machine is complicated and intensity is not enough, the problem of fuselage stability is not enough.
In order to solve the above technical problems, the technical solution of the utility model is：A kind of flying probe tester, including frame and set
It is equipped with the underframe below frame, the frame and is provided with automatic clamping plate mechanism, test suite and for driving the test group
The screw mandrel drive mechanism of part movement, it is characterised in that：The frame include inner panel and around the inner panel and with it is described interior
The peripheral frame that plate is fixedly connected, the automatic clamping plate mechanism and the screw mandrel drive mechanism are arranged at the inner panel.
Alternatively, the peripheral frame include joining end to end and successively around the inner panel up and down four direction the
One peripheral board, the second peripheral board, the 3rd peripheral board and fourth peripheral plate, it is first peripheral board, second peripheral board, described
3rd peripheral board and the fourth peripheral plate are connected with the corresponding edge of the inner panel.
Alternatively, each peripheral board is integrally formed with the inner panel.
Alternatively, the screw mandrel drive mechanism includes the first x-axis screw component, the first y-axis module, the second x-axis screw mandrel group
Part, the second y-axis module, the 3rd peripheral board and the fourth peripheral plate are provided with the end for being available for the first x-axis screw component
The through hole that portion and the end of the second x-axis screw component are passed through.
Alternatively, the underframe includes height-adjustable load-bearing chassis and is arranged on the load-bearing chassis by thickening steel
The box underframe main body of plate weld.
Alternatively, the automatic clamping plate mechanism of the plate includes two cleat assemblies being oppositely arranged side by side and up and down and for driving
The elevating mechanism that dynamic one cleat assembly is moved up and down, the cleat assembly include static clamping plate, mobile clamping plate, moving slide board and
For the first drive mechanism for driving moving slide board to be moved along the static clamping plate length direction, the static clamping plate is moved with described
Dynamic clamping plate is arranged side by side, and the moving slide board sets at least one first guide groove, the center line of first guide groove and institute
The moving direction for stating moving slide board intersects, and the first lead is set in first guide groove, and described first lead one end connects
The mobile clamping plate is connected to, the other end of first lead is placed in first guide groove.
Alternatively, the mobile clamping plate sets pilot hole, and the static clamping plate is additionally provided with corresponding with the pilot hole
The second lead, second lead be used for guide the mobile clamping plate to be moved along second lead.
Alternatively, the moving slide board also sets up at least one second guide groove, the center line of second guide groove with
The moving direction of the moving slide board is identical, is provided for guiding the of the moving slide board movement in each second guide groove
Three leads.
Alternatively, the elevating mechanism includes lifting motor, transmission belt component and is arranged in frame and parallel to one
The transmission transverse axis of cleat assembly, the lifting motor driving transmission transverse axis is rotated, the transmission transverse axis and the transmission belt
Component driver connects and drives the plate clip assembly to move up and down by the transmission belt component.
Alternatively, the screw mandrel drive mechanism includes the first x-axis screw component, the first y-axis module, the second x-axis screw mandrel group
Part, the second y-axis module, the first x-axis screw component and the second x-axis screw component may be contained within the bottom of the inner panel, institute
The bottom for stating the first y-axis module connects the first x-axis screw component, and the bottom of the second y-axis module connects the 2nd x
Axial filament bar assembly, the first x-axis screw component drives the first y-axis module to laterally move, the second x-axis screw mandrel group
Part drives the second y-axis module to laterally move, and the upper and lower part of the inner panel sets slide rail and glidepath respectively, institute
The upper and lower part for stating the first y-axis module is slidably connected with the upper slide rail and the glidepath respectively, the second y-axis module
Upper and lower part be slidably connected respectively with the upper slide rail and the glidepath
The utility model beneficial effect：
The utility model provides a kind of flying probe tester, including housing and the frame and underframe that are arranged in housing, institute
State underframe to be arranged at below the frame, automatic clamping plate mechanism, test suite are provided with the frame and described for driving
The screw mandrel drive mechanism of test suite movement, the frame includes inner panel and fixed around the inner panel and with the inner panel
The peripheral frame of connection, the automatic clamping plate mechanism and the screw mandrel drive mechanism are arranged at the inner panel.One is set in peripheral frame
Inner panel, peripheral frame is supported by an inner panel, and the function with reinforcement or floor prevents peripheral frame and inner panel from deforming, can
It is effective to reinforce peripheral frame, while the still direct fixed installation structure of automatic clamping plate mechanism and screw mandrel drive mechanism, will be multiple
Function collection can effectively simplify the structure of frame together in one.
Brief description of the drawings
Fig. 1 is flying probe tester structural representation in the embodiment that the utility model is provided；
Fig. 2 is rack construction schematic diagram in the embodiment that the utility model is provided；
Fig. 3 is automatic clamping plate mechanism structural representation in the embodiment that the utility model is provided；
Fig. 4 is the enlarged drawing of regional area I in Fig. 3.
Accompanying drawing identifier declaration：
100- frames, 110- inner panels, the upper slide rails of 111-, 112- glidepaths, 120- peripheries frame, 130- suspension ring, 121- first
Peripheral board, the peripheral boards of 122- second, the peripheral boards of 123- the 3rd, 124- fourth peripheral plates, 125- through holes；
200- underframe, 210- load-bearing chassis, screw 211, disk 212；
The automatic clamping plate mechanisms of 300-, the static clamping plates of 310-, the leads of 311- second, the leads of 312- the 3rd, 320- movements
Clamping plate, the leads of 321- first, 322- pilot holes, 330- moving slide boards, the guide grooves of 331- first, the guide grooves of 332- second,
The drive mechanisms of 340- first, 351- stepper motors, 352- transmission transverse axis, 353- timing belts, 354- synchronous pulleys, 355- is fixed
Axle, 356- guide rails；
400- test suites；
500- screw mandrel drive mechanisms, 510- the first x-axis screw components, 520- the first y-axis modules, 530- the second x-axis screw mandrels
Component, 540- the second y-axis modules.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain
The utility model, is not used to limit the utility model.
It should be noted that when element is referred to as " being fixed on " or " being arranged at " another element, it can be directly another
On one element or it is connected on another element.When an element is known as " being connected to " another element, it can
To be directly to another element or be indirectly connected on another element.
It should also be noted that, the orientation term such as left and right, upper and lower in the present embodiment, be only each other relative concept or
Using the normal operating condition of product as reference, and it should not be regarded as restrictive.
If having used the word such as " first ", " second " in the present embodiment come if limiting parts, people in the art
Member should know：" first ", the use of " second " are intended merely to facilitate in description and parts distinguished as not having separately
Statement is outer, and above-mentioned word does not have special implication.
The present embodiment is the flying probe tester for test circuit plate front and back, the front and back of flying probe tester
It is provided with same or similar structure.Only describe below the positive automatic clamping plate mechanism of flying probe tester, test suite and
Screw mandrel drive mechanism, likewise, the automatic clamping plate mechanism of the specific identical in its back side, test suite and screw mandrel drive mechanism.Front
Automatic clamping plate mechanism, test suite and screw mandrel drive mechanism and the automatic clamping plate mechanism at the back side, test suite and screw mandrel drive
Mechanism can be symmetrical before and after the center line Central Symmetry of frame or the plane to cross frame central line.
As shown in Figure 1 and Figure 2, the utility model embodiment provides a kind of flying probe tester, including frame 100 and setting
Automatic clamping plate mechanism 300, test suite 400 and screw mandrel driving machine are provided with underframe 200 in the lower section of frame 100, frame 100
Structure 500, the driving test suite 400 of screw mandrel drive mechanism 500 is moved, and frame 100 includes inner panel 110 and around inner panel 110
And the peripheral frame 120 being fixedly connected with inner panel 110, automatic clamping plate mechanism 300 and screw mandrel drive mechanism 500 are fixed on inner panel 110
One side.
One inner panel 110 is set in peripheral frame 120, peripheral frame 120 is supported by an inner panel 110, with reinforcement or rib
The function of plate, prevents inner panel 110 from deforming, and can effectively reinforce inner panel 110, while inner panel 110 or automatic clamping plate mechanism 300
With the direct fixed installation structure of screw mandrel drive mechanism 500, by multiple function collection together in one, it can effectively simplify frame
100 structure.
Further, peripheral frame 120 includes four pieces of peripheral boards around the four direction up and down of inner panel 110, each outer
Coaming plate is respectively the first peripheral board 121, the second peripheral board 122, the 3rd peripheral board 123 and fourth peripheral plate 124, the first peripheral board
121st, the second peripheral board 122, the 3rd peripheral board 123 and fourth peripheral plate 124 are corresponding in turn to around inner panel 110 up and down four
Individual direction.Head and the tail are connected each peripheral board successively, and each peripheral board is connected with the corresponding edge of inner panel 110.Four pieces of peripheral boards are encircled into
One square peripheral frame 120, inner panel 110 is placed in peripheral frame 120 and the edge of inner panel 110 is connected with each peripheral board.From interior
From the point of view of plate 110 is connected with monolithic peripheral board, inner panel 110 is connected into peripheral board " T " shape structures, the intensity of peripheral board is added,
Function with reinforcement or floor；Adjacent two peripheral boards connection, and two simultaneously adjacent with this peripheral boards of inner panel 110
Connection, inner panel 110 strengthens the bonding strength of two adjacent peripheral boards, and the function with angle bar makes its intensity increase be difficult production
Raw deformation.
Alternatively, each peripheral board is integrally formed with inner panel 110, each peripheral board and inner panel 110 can by casting integrated shaping,
Frame 100 is structure as a whole, and more preferably, intensity is higher for overall structure stability.
Underframe 200 includes underframe main body and load-bearing chassis 210, and load-bearing chassis 210 includes screw 211 and disk 212, screw
Two ends connect underframe main body and disk 212, the adjustable bottom bracket main body of rotary screw 211 and the distance of disk 212 respectively, and then adjust
The height of underframe 200 is saved, underframe main body is arranged at the case structure on the load-bearing chassis 210 and to be welded by thickening steel plate.
Alternatively, screw mandrel drive mechanism 500 includes the first x-axis screw component 510, the first y-axis module 520, the second x-axis silk
Bar assembly 530, the second y-axis module 540, the 3rd peripheral board 123 and fourth peripheral plate 124 are provided with and are available for the first x-axis screw mandrel
The through hole 125 that the end of component 510 and the end of the second x-axis screw component 530 are passed through.Specifically, the first x-axis screw component
510 and second x-axis screw component 530 include screw mandrel and motor, the first x-axis screw component 510 only drives the first y-axis module
520, the second x-axis screw component 530 only the second y-axis module 540, the through hole 125 on the 3rd peripheral board 123 is available for the first x-axis silk
The motor of bar assembly 510 is passed through, and the right outer through hole 125 placed is available for the motor of the second x-axis screw component 530 to pass through, and so may be used
The left and right width of the peripheral frame 120 of reduction, reduces the size of frame 100.
Alternatively, the upper surface of the first peripheral board 121 is provided with suspension ring 130, and suspension ring are for ease of hoisting structure, in assembling
Frame 100 is assembled first, is lifted frame 100 to the top of underframe 200.
Alternatively, as shown in Figure 3, Figure 4, automatic clamping plate mechanism 300 includes two clamping plate groups being oppositely arranged side by side and up and down
Part and the elevating mechanism for driving one cleat assembly to move up and down, cleat assembly include static clamping plate 310, mobile clamping plate
320th, moving slide board 330 and the first drive mechanism for driving moving slide board 330 to be moved along the static length direction of clamping plate 310
340, static clamping plate 310 is arranged side by side with mobile clamping plate 320, and moving slide board 330 sets at least one first guide groove 331, the
The center line of one guide groove 331 intersects with the moving direction of moving slide board 330, and the first lead is set in the first guide groove 331
321, the one end of the first lead 321 is connected to mobile clamping plate 320, and the other end of the first lead 321 is placed in the first guide groove 331
It is interior.Because the center line of the first guide groove 331 intersects with the moving direction of moving slide board 330, the first guide groove 331 is relative to quiet
Only to be obliquely installed for the moving direction of clamping plate 310 or moving slide board 330, the one end of the first lead 321 is connected to mobile folder
Plate 320, the other end of the first lead 321 is placed in the first guide groove 331.Moving slide board 330 is arranged at mobile clamping plate 320
Bottom, the upper end of the first lead 321 is connected to the bottom of mobile clamping plate 320, and the bottom of the first lead 321 is placed in first
In guide groove 331.Relative movement can be produced between first guide groove 331 and the first lead 321, the first drive mechanism 340 is driven
Dynamic moving slide board 330 is laterally moved, and the first guide groove 331, which is followed, to laterally move, and a side wall and pressure of the first guide groove 331 is compeled
First lead 321, vertically moves the first lead 321, and then drives mobile clamping plate 320 to vertically move, with this reality
Now move clamping plate 320 and do clamping movement.
Vertically moving for vertical static clamping plate 310 is only done to make to move clamping plate 320, mobile clamping plate 320 is set in the present embodiment
Pilot hole 322 is put, while static clamping plate 310 is additionally provided with second lead 311 corresponding with pilot hole 322.Pilot hole 322
It is sheathed on corresponding second lead 311, the clamping that mobile clamping plate 320 makees vertical static clamping plate along the second lead 311 is moved
It is dynamic.
Moving slide board 330 also sets up at least one second guide groove 332, and the center line of the second guide groove 332 is slided with mobile
The moving direction of plate 330 is identical, and the 3rd lead 312 is set in each second guide groove 332.The transverse shifting of moving slide board 330 is simultaneously
The second guide groove 332 is driven to move, the 3rd lead 312 guides the moving direction of the second guide groove 332 and then reaches that guiding is moved
The effect of the dynamic moving direction of slide plate 330, it is ensured that moving slide board 330 is along static clamping plate 310 under the driving of the first drive mechanism 340
Length direction movement.The second guide groove of two or more 332, the uniform difference portion of the second guide groove 332 are preferably provided with this implementation
In on moving slide board 330.
Alternatively, in two cleat assemblies, one cleat assembly is installed on the bottom of frame 100, another cleat assembly and its phase
To set and another clamping plate two ends be separately fixed on two guide rails 356.Elevating mechanism is, by stepper motor 351, guide rail 356, to pass
Dynamic transverse axis 352, timing belt 353, synchronous pulley 354 are constituted, and two guide rails 356 are vertically arranged at the both sides of inner panel 110, are driven transverse axis
352 are horizontally set at the top of inner panel 110, and the both sides of the bottom of inner panel 110, which are respectively arranged with fixing axle 355, to be used to install synchronizing wheel
354, synchronizing wheel 354 is equally installed at transmission transverse axis 352 two ends, two timing belts 353 are respectively arranged in the synchronous pulley of homonymy
On 354, transmission transverse axis 352 one end is logical to be connected with stepper motor 351, driven by stepper motor 351 be driven transverse axis 352 so that on
Plate clip assembly is along the vertical lifting of guide rail 356.
Alternatively, the first x-axis screw component 510 and the second x-axis screw component 530 may be contained within the bottom of inner panel 110, the
The bottom of one y-axis module 520 connects the first x-axis screw component 510, and the bottom of the second y-axis module 540 connects the second x-axis screw mandrel
Component 530, the first x-axis screw component 510 drives the first y-axis module 520 to laterally move, and the second x-axis screw component 530 drives
Second y-axis module 540 laterally moves.Screw mandrel drive mechanism 500 occupies larger part by weight, the first x-axis in frame 100
Screw component 510, the first y-axis module 520, the second x-axis screw component 530 and the position of the second y-axis module 540 influence frame 100
Overall center of gravity height, and then influence frame 100 stability, center of gravity is lower, and frame 100 is more stable, during work more be difficult shake
It is dynamic.In the present embodiment, by the way that putting under the first x-axis screw component 510 and the second x-axis screw component 530 is made, mitigate frame
The weight on 100 tops, increases the bottom weight of frame 100, the center of gravity of frame 100 is integrally moved down, and improves the stabilization of frame 100
Property, weaken the vibration that screw mandrel drive mechanism 500 is operationally produced, accuracy is higher during testing needle test circuit plate.
Alternatively, the upper and lower part of inner panel 110 sets slide rail 111 and glidepath 112, the first y-axis module 520 respectively
Upper and lower part be slidably connected respectively with upper slide rail 111 and glidepath 112, the upper and lower part of the second y-axis module 540 difference
It is slidably connected with upper slide rail 111 and glidepath 112, the first x-axis screw component 510 drives the first y-axis module 520 along upper slide rail
111 and glidepath 112 laterally move, the second x-axis screw component 530 drive the second y-axis module 540 along upper slide rail 111 and under
Slide rail 112 laterally moves.The effect of upper slide rail 111 and glidepath 112 is to stablize the first y-axis module 520 and the second y-axis mould
Group 540, makes the first y-axis module 520 and the second y-axis module 540 more stablize when laterally moving.
Preferred embodiment of the present utility model is these are only, it is all in this practicality not to limit the utility model
Any modifications, equivalent substitutions and improvements made within new spirit and principle etc., should be included in guarantor of the present utility model
Within the scope of shield.
Claims (10)
1. it is provided with automatic clamping plate in a kind of flying probe tester, including frame and the underframe being arranged at below frame, the frame
Mechanism, test suite and the screw mandrel drive mechanism for driving the test suite movement, it is characterised in that：The frame includes
Inner panel and the peripheral frame being fixedly connected around the inner panel and with the inner panel, the automatic clamping plate mechanism and the screw mandrel
Drive mechanism is arranged on the inner panel.
2. a kind of flying probe tester according to claim 1, it is characterised in that：The peripheral frame include join end to end and according to
It is secondary around the first peripheral board of the inner panel surrounding, the second peripheral board, the 3rd peripheral board and fourth peripheral plate, outside described first
Coaming plate, second peripheral board, the 3rd peripheral board and the fourth peripheral plate are fixed on the corresponding edge of the inner panel.
3. a kind of flying probe tester according to claim 2, it is characterised in that：Each peripheral board and inner panel one
Shaping.
4. a kind of flying probe tester according to claim 2, it is characterised in that：The screw mandrel drive mechanism includes the first x
Outside axial filament bar assembly, the first y-axis module, the second x-axis screw component, the second y-axis module, the 3rd peripheral board and the described 4th
Coaming plate is provided with the through hole that the end of the end for being available for the first x-axis screw component and the second x-axis screw component is passed through.
5. a kind of flying probe tester according to claim 2, it is characterised in that；The underframe includes height-adjustable load-bearing
Chassis and it is arranged at the box underframe main body welded on the load-bearing chassis by thickening steel plate.
6. according to a kind of any flying probe tester of claim 1 to 5, it is characterised in that；The automatic clamping plate mechanism includes
Two cleat assemblies being oppositely arranged side by side and up and down and the elevating mechanism for driving one cleat assembly to move up and down, it is described
Cleat assembly includes static clamping plate, mobile clamping plate, moving slide board and for driving moving slide board along the static clamping plate length side
To the first mobile drive mechanism, the static clamping plate is arranged side by side with the mobile clamping plate, and the moving slide board is set at least
One the first guide groove, the center line of first guide groove intersects with the moving direction of the moving slide board, and described first leads
First lead is set into groove, and described first lead one end is connected to the mobile clamping plate, first lead it is another
One end is placed in first guide groove.
7. a kind of flying probe tester according to claim 6, it is characterised in that：The mobile clamping plate sets pilot hole, institute
State static clamping plate and be additionally provided with second lead corresponding with the pilot hole, second lead is used to guide the shifting
Dynamic clamping plate is moved along second lead.
8. a kind of flying probe tester according to claim 7, it is characterised in that：The moving slide board also sets up at least one
Second guide groove, the center line of second guide groove is identical with the moving direction of the moving slide board, and each described second is oriented to
It is provided for guiding the 3rd lead of the moving slide board movement in groove.
9. a kind of flying probe tester according to claim 6, it is characterised in that；The elevating mechanism includes lifting motor, passed
It is dynamic with component and to be arranged in frame and parallel to the transmission transverse axis of one cleat assembly, the lifting motor drives the transmission
Transverse axis is rotated, and the transmission transverse axis is connected with the transmission belt Component driver and drives the clamping plate by the transmission belt component
Component is moved up and down.
10. according to any described a kind of flying probe tester in claim 1,2,3 or 5, it is characterised in that：The screw mandrel driving machine
Structure includes the first x-axis screw component, the first y-axis module, the second x-axis screw component, the second y-axis module, the first x-axis screw mandrel
Component and the second x-axis screw component may be contained within the bottom of the inner panel, the bottom connection described first of the first y-axis module
X-axis screw component, the bottom of the second y-axis module connects the second x-axis screw component, the first x-axis screw component
The first y-axis module is driven to laterally move, the second x-axis screw component drives the second y-axis module to do horizontal shifting
Dynamic, the upper and lower part of the inner panel sets slide rail and glidepath, the upper and lower part difference of the first y-axis module respectively
Be slidably connected with the upper slide rail and the glidepath, the upper and lower part of the second y-axis module respectively with the upper slide rail
It is slidably connected with the glidepath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621347588.9U CN206515434U (en) | 2016-12-09 | 2016-12-09 | A kind of flying probe tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621347588.9U CN206515434U (en) | 2016-12-09 | 2016-12-09 | A kind of flying probe tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206515434U true CN206515434U (en) | 2017-09-22 |
Family
ID=59862994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621347588.9U Active CN206515434U (en) | 2016-12-09 | 2016-12-09 | A kind of flying probe tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206515434U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021088332A1 (en) * | 2019-11-06 | 2021-05-14 | 南京协辰电子科技有限公司 | Clamp mechanism and test apparatus having same |
| CN114942381A (en) * | 2022-07-21 | 2022-08-26 | 深圳市东方宇之光科技股份有限公司 | Flying probe testing machine and testing method based on cantilever type structure test circuit board |
-
2016
- 2016-12-09 CN CN201621347588.9U patent/CN206515434U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021088332A1 (en) * | 2019-11-06 | 2021-05-14 | 南京协辰电子科技有限公司 | Clamp mechanism and test apparatus having same |
| CN114942381A (en) * | 2022-07-21 | 2022-08-26 | 深圳市东方宇之光科技股份有限公司 | Flying probe testing machine and testing method based on cantilever type structure test circuit board |
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