CN107765042A - A kind of adjustable test needle bed for circuit board - Google Patents
A kind of adjustable test needle bed for circuit board Download PDFInfo
- Publication number
- CN107765042A CN107765042A CN201710944232.6A CN201710944232A CN107765042A CN 107765042 A CN107765042 A CN 107765042A CN 201710944232 A CN201710944232 A CN 201710944232A CN 107765042 A CN107765042 A CN 107765042A
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- CN
- China
- Prior art keywords
- test
- bottom plate
- circuit board
- adjustable
- fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Leads Or Probes (AREA)
Abstract
The invention discloses a kind of adjustable test needle bed for circuit board, including adjustable supports base, the top of adjustable supports base is fixed with fixed bottom plate, the central lower surface of fixed bottom plate digs the threaded securing bores for having circle, the upper surface center of fixed bottom plate, which is dug, fixed groove, the inside of fixed groove is inlaid with test bottom plate, the upper surface of test bottom plate is welded with test probe, the end of test probe is connected with Auto-Test System by wire, the surrounding of the fixation bottom plate of fixed groove side, which is dug, positioning hole, spring holder is plugged with positioning hole, the top of spring holder is plugged with rigid panel；Auto-Test System includes core controller and multiway analog switch, and the output end of multiway analog switch is connected with a/d converter, a/d converter output digit signals to core controller.The present invention can easily be adjusted, remove and install, applied widely, and can automatically and accurately realize that circuit board testing operates.
Description
Technical field
The present invention relates to test needle bed field, specially a kind of adjustable test needle bed for circuit board.
Background technology
The main purpose of microelectronic product test, is to ensure quality in the fabrication process.In manufacture final stage, or
Deliver in user's hand, just the defects of discovery finished product, time and the expense of maintenance certainly will be increased.General institute is faulty, can use
On-line testing (ICT) technology differentiates in test step.In ICT measurements, special Bed of nails (Bed-of-
NailsTestingFixture probe (Probe) array), the welding zone with test node on wiring board (PCB)
(TestLands) contact, and discrete isolation test is carried out with hundreds of millivolts of voltage sum milliampere electric currents, so as to accurately judge to be filled
Even weldering, wiring board open the failures such as short circuit for the neglected loading of component, misloading, parameter value deviation, solder joint.
A kind of Publication No. 205049623U test needle bed for circuit board, including detection pin, described testing needle
Bed also includes printed circuit board (PCB) and fixed structure, the grafting for the circuit board for being provided with and being tested on described printed circuit board (PCB)
The adaptable detecting pinhole of pin hole；The detection pin being plugged in the detecting pinhole, welded by one end in described printing electricity
On the plate of road；In the test process of circuit board, described detection pin is supported by described fixed structure, is fixed and spacing；Should
Although device can realize the general test operation to circuit board, the apparatus structure is relatively fixed, it is impossible to is easily entered
Row regulation, applicability are poor.
The content of the invention
In order to overcome the shortcomings of prior art, the present invention provides a kind of adjustable test needle bed for circuit board,
Including adjustable supports base, the top of the adjustable supports base is fixed with fixed bottom plate, the center following table of the fixed bottom plate
The threaded securing bores for having circle are dug in face, and the upper surface center of the fixed bottom plate, which is dug, fixed groove, the fixed groove
Inside be inlaid with test bottom plate, the test bottom plate is made of hollow copper-clad plate, and lower surface is coated with coatings, tests
The upper surface of bottom plate is welded with test probe, and the end of the test probe is connected with Auto-Test System by wire, automatically
Test system welded and installed has positioning in the lower section of test bottom plate, the surrounding cutting of the fixation bottom plate of the fixed groove side
Hole, spring holder is plugged with the positioning hole, the top of the spring holder is plugged with rigid panel.
As a kind of preferable technical scheme of the present invention, the Auto-Test System includes core controller and multi-channel analog
Switch, the multiway analog switch are connected to the output end of test probe, the output end connection of multiway analog switch by wire
There are a/d converter, the a/d converter output digit signals to core controller.
As a kind of preferable technical scheme of the present invention, the adjustable supports base includes lifting motor, the lifting electricity
Lifting set axle is socketed with the output shaft of machine, the top of the lifting set axle is carved with external screw thread, is engaged with threaded securing bores.
As a kind of preferable technical scheme of the present invention, the inwall both lateral sides of the fixed groove have dug locator card
Mouthful, two side bottoms of corresponding test bottom plate are inlaid with spring fixture block, the front end size of the spring fixture block and limited bayonet
Internal memory matches.
As a kind of preferable technical scheme of the present invention, the multiway analog switch is divided into low frequency switch group and HF switch
Group, optical coupling isolator is also associated between the output end and a/d converter of multiway analog switch.
As a kind of preferable technical scheme of the present invention, the core controller uses FPGA controller, FPGA controls
Device is using EP2S60 chips serial Stratix II.
As a kind of preferable technical scheme of the present invention, the core controller is built-in with ethernet control module, described
The output end of ethernet control module is connected with RJ45 interfaces, and the RJ45 interfaces are connected to host computer by netting twine.
Compared with prior art, the beneficial effects of the invention are as follows：
(1) present invention drives lifting set axle using lifting motor, can conveniently realized by setting adjustable supports base
Regulation to the height of fixed bottom plate operates；, can be easily using snap action by setting limited bayonet and spring fixture block
Realize and the installation and removal for testing bottom plate are operated；By setting positioning hole grafting spring holder, so as to drive rigid panel
Move up and down, realize the fixed operation to circuit-under-test plate, whole device is simple in construction, can flexibly and easily be adjusted
Operation, operated suitable for different types of circuit board testing；
(2) present invention sets low frequency group and high frequency group respectively by setting Auto-Test System in multiway analog switch,
It is convenient that test collection is carried out to different types of signal, by setting ethernet control module and RJ45 interfaces, realize core control
The real-time Communication for Power of device and host computer processed, control efficiency and disposal ability are improved, it is convenient to carry out complete system testing.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is Auto-Test System structured flowchart.
In figure：1- adjustable supports bases；2- fixes bottom plate；3- threaded securing bores；4- tests bottom plate；5- tests probe；6-
Auto-Test System；7- positioning holes；8- spring holders；9- rigid panels；10- fixed grooves；11- limited bayonets；12- springs
Fixture block；
101- lifting motors；102- lifting set axles；
601- core controllers；602- multiway analog switches；603-AD converters；604- optical coupling isolators；605- ether
Net control module；606-RJ45 interfaces.
Embodiment.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
The explanation of following embodiment is refer to the attached drawing, can be to the specific embodiment implemented to the example present invention.
The direction and position term that the present invention is previously mentioned, for example, " on ", " in ", " under ", "front", "rear", "left", "right", " interior ", "
Outside ", " side " etc., only it is direction and position with reference to annexed drawings.Therefore, the direction and position term used is to illustrate
And understand the present invention, and it is not used to the limitation present invention.
Embodiment：
As shown in figure 1, the invention provides a kind of adjustable test needle bed for circuit board, including adjustable supports base
1, the top of the adjustable supports base 1 is fixed with fixed bottom plate 2, and the central lower surface of the fixed bottom plate 2, which is dug, circle
Threaded securing bores 3, the adjustable supports base 1 includes lifting motor 101, is socketed on the output shaft of the lifting motor 101
There is lifting set axle 102, the top of the lifting set axle 102 is carved with external screw thread, is engaged with threaded securing bores 3；The lifting
Motor 101 realizes that rise and fall operate for control, drives lifting set axle 103 to move up and down when lifting motor 101 works, passes through
Threaded securing bores 3 are connected to fixed bottom plate 2, so as to realize that the regulation for the height that bottom plate 2 is fixed to top operates, while also can
Easily carry out disassembling section；
The upper surface center of the fixed bottom plate 2, which is dug, fixed groove 10, and the inside of the fixed groove 10 is inlaid with
Bottom plate 4 is tested, the inwall both lateral sides of the fixed groove 10 have dug limited bayonet 11, corresponding to test the two of bottom plate 4
Side bottom is inlaid with spring fixture block 12, and the front end size of the spring fixture block 12 matches with the internal memory of limited bayonet 11, test
Bottom plate 4 is connected to inside fixed groove 10 by spring fixture block 12, when needing to be tested, by the clamping of spring fixture block 12 to calmly
Position bayonet socket 11 in can realize fix, it is not necessary to when press spring fixture block 12 be allowed to from limited bayonet 11 eject；
The test bottom plate 4 is made of hollow copper-clad plate, and lower surface is coated with coatings, tests the upper table of bottom plate 4
Face is welded with test probe 5, and the end of the test probe 5 is connected with Auto-Test System 6, Auto-Test System by wire
6 welded and installeds have positioning hole 7 in the lower section of test bottom plate 4, the surrounding cutting of the fixation bottom plate 2 of the side of fixed groove 10,
Spring holder 8 is plugged with the positioning hole 7, the top of the spring holder 8 is plugged with rigid panel 9；When needs pair
When circuit board is tested, circuit board under test is prevented above test bottom plate 4, and test probe 5 is close to tested portion
Position, then presses spring holder 8 so that rigid panel 9 is crimped on above circuit-under-test plate, so as to which circuit-under-test plate be fixed
Firmly, it is convenient for follow-up detection operation；
As shown in Fig. 2 the Auto-Test System 6 includes core controller 601 and multiway analog switch 602, it is described more
Path analoging switch 602 is connected to the output end of test probe 5 by wire, and the output end of multiway analog switch 602 is connected with AD
Converter 603, the multiway analog switch 602 divide for low frequency switch group and HF switch group, low frequency switch group connection tremendously low frequency
Circuit, HF switch group are connected to high-frequency circuit, and low-and high-frequency separate detection is advantageous to reduce mutual influence, so as to
Improve accuracy of detection；Optical coupling isolator is also associated between the output end and a/d converter 603 of the multiway analog switch 602
604, optical coupling isolator 604 is used to realize that input and output are isolated, and reduces influence of the input electrical signal for a/d converter 603, carries
The analog signal that multiway analog switch 602 exports is converted into data signal by high circuit stability, the a/d converter 603, then
Data signal is fed through core controller 601；
The core controller 601 uses FPGA controller, and the FPGA controller is using EP2S60 serial Stratix II
Chip, the serial FPGA use advanced 90nm production technologies；Pushed FPGA performances to new high degree, the series be industry most
It hurry up, density highest FPGA, EP2S60 possess up to 84 special LVDS differential logics receiving channels, each LVDS channel datas
Transmission rate is up to 1Gb/s.Its inside has special high-speed figure phase-locked loop circuit, can produce and be available for adc circuit to make
Clock signal；The core controller 601 is built-in with ethernet control module 605, the ethernet control module 605
Output end is connected with RJ45 interfaces 606, and the RJ45 interfaces 606 are connected to host computer by netting twine；
It should be noted that measured signal is more in system, low frequency and HFS are 32 respectively, and a/d converter
603 high and low frequency data acquisition chip all only has one, and each signal is all to control multi-channel analog by core controller 601
It is acquired with switching 602 timesharing；To make the data storage of each passage, transmission and control carry out in an orderly manner, in FPGA
Working state control module and data memory module are provided with for each signal；The order of all control process in the system
All sent from host computer, i.e., core controller 601 is received from RJ45 interfaces 606 by ethernet control module 605 and controlled
After instruction, operated accordingly by instruction.
In summary, the main characteristic of the invention lies in that：
(1) present invention drives lifting set axle using lifting motor, can conveniently realized by setting adjustable supports base
Regulation to the height of fixed bottom plate operates；, can be easily using snap action by setting limited bayonet and spring fixture block
Realize and the installation and removal for testing bottom plate are operated；By setting positioning hole grafting spring holder, so as to drive rigid panel
Move up and down, realize the fixed operation to circuit-under-test plate, whole device is simple in construction, can flexibly and easily be adjusted
Operation, operated suitable for different types of circuit board testing；
(2) present invention sets low frequency group and high frequency group respectively by setting Auto-Test System in multiway analog switch,
It is convenient that test collection is carried out to different types of signal, by setting ethernet control module and RJ45 interfaces, realize core control
The real-time Communication for Power of device and host computer processed, control efficiency and disposal ability are improved, it is convenient to carry out complete system testing.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
Claims (7)
- A kind of 1. adjustable test needle bed for circuit board, it is characterised in that：It is described adjustable including adjustable supports base (1) The top of support base (1) is fixed with fixed bottom plate (2), and the central lower surface of the fixed bottom plate (2) digs the spiral shell for having circle Line fixing hole (3), the upper surface center of the fixed bottom plate (2), which is dug, fixed groove (10), the fixed groove (10) Inside is inlaid with test bottom plate (4), and the test bottom plate (4) is made of hollow copper-clad plate, and lower surface is coated with coatings, The upper surface of test bottom plate (4) is welded with test probe (5), and the end of the test probe (5) is connected with automatically by wire Test system (6), Auto-Test System (6) welded and installed are testing the lower section of bottom plate (4), fixed groove (10) side The surrounding of fixed bottom plate (2), which is dug, positioning hole (7), and spring holder (8), the spring are plugged with the positioning hole (7) The top of alignment pin (8) is plugged with rigid panel (9).
- A kind of 2. adjustable test needle bed for circuit board according to claim 1, it is characterised in that：The automatic survey Test system (6) includes core controller (601) and multiway analog switch (602), and the multiway analog switch (602) passes through wire The output end of test probe (5) is connected to, the output end of multiway analog switch (602) is connected with a/d converter (603), the AD Converter (603) output digit signals are to core controller (601).
- A kind of 3. adjustable test needle bed for circuit board according to claim 1, it is characterised in that：The adjustable supporting Support base (1) includes lifting motor (101), and lifting set axle (102), institute are socketed with the output shaft of the lifting motor (101) The top for stating lifting set axle (102) is carved with external screw thread, is engaged with threaded securing bores (3).
- A kind of 4. adjustable test needle bed for circuit board according to claim 1, it is characterised in that：The anchor The inwall both lateral sides of groove (10) have dug limited bayonet (11), and two side bottoms of corresponding test bottom plate (4) are inlaid with bullet Spring fixture block (12), the front end size of the spring fixture block (12) match with the internal memory of limited bayonet (11).
- A kind of 5. adjustable test needle bed for circuit board according to claim 2, it is characterised in that：The multichannel mould Intend switch (602) and be divided into low frequency switch group and HF switch group, the output end and a/d converter of multiway analog switch (602) (603) optical coupling isolator (604) is also associated between.
- A kind of 6. adjustable test needle bed for circuit board according to claim 2, it is characterised in that：The core control Device (601) processed uses FPGA controller, and the FPGA controller is using EP2S60 chips serial Stratix II.
- A kind of 7. adjustable test needle bed for circuit board according to claim 2, it is characterised in that：The core control Device (601) processed is built-in with ethernet control module (605), and the output end of the ethernet control module (605) is connected with RJ45 Interface (606), the RJ45 interfaces (606) are connected to host computer by netting twine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710944232.6A CN107765042A (en) | 2017-09-30 | 2017-09-30 | A kind of adjustable test needle bed for circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710944232.6A CN107765042A (en) | 2017-09-30 | 2017-09-30 | A kind of adjustable test needle bed for circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107765042A true CN107765042A (en) | 2018-03-06 |
Family
ID=61267207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710944232.6A Pending CN107765042A (en) | 2017-09-30 | 2017-09-30 | A kind of adjustable test needle bed for circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107765042A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109870658A (en) * | 2019-02-14 | 2019-06-11 | 株洲福德轨道交通研究院有限公司 | Needle bed mechanism |
| CN111044885A (en) * | 2020-01-02 | 2020-04-21 | 深圳市瑞福自动化设备有限公司 | PCB board on-line semiconductor device test system |
| CN115283971A (en) * | 2022-10-09 | 2022-11-04 | 中科摩通(常州)智能制造股份有限公司 | Detection and press-fitting integrated production line for assembling automobile electronic water pump and production process |
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|---|---|---|---|---|
| US20130088358A1 (en) * | 2011-10-07 | 2013-04-11 | Askey Computer Corp. | Fastener testing device |
| CN104502831A (en) * | 2014-12-29 | 2015-04-08 | 中国人民解放军总参谋部第六十研究所 | Circuit board debugging and detecting system and application method thereof |
| CN205049623U (en) * | 2015-08-14 | 2016-02-24 | 四川长虹网络科技有限责任公司 | A test needle bed for circuit board |
| CN205210264U (en) * | 2015-12-15 | 2016-05-04 | 中北大学 | That adopts plane motor flies needle test machine |
-
2017
- 2017-09-30 CN CN201710944232.6A patent/CN107765042A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130088358A1 (en) * | 2011-10-07 | 2013-04-11 | Askey Computer Corp. | Fastener testing device |
| CN104502831A (en) * | 2014-12-29 | 2015-04-08 | 中国人民解放军总参谋部第六十研究所 | Circuit board debugging and detecting system and application method thereof |
| CN205049623U (en) * | 2015-08-14 | 2016-02-24 | 四川长虹网络科技有限责任公司 | A test needle bed for circuit board |
| CN205210264U (en) * | 2015-12-15 | 2016-05-04 | 中北大学 | That adopts plane motor flies needle test machine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109870658A (en) * | 2019-02-14 | 2019-06-11 | 株洲福德轨道交通研究院有限公司 | Needle bed mechanism |
| CN109870658B (en) * | 2019-02-14 | 2024-05-24 | 株洲福德轨道交通研究院有限公司 | Needle bed mechanism |
| CN111044885A (en) * | 2020-01-02 | 2020-04-21 | 深圳市瑞福自动化设备有限公司 | PCB board on-line semiconductor device test system |
| CN115283971A (en) * | 2022-10-09 | 2022-11-04 | 中科摩通(常州)智能制造股份有限公司 | Detection and press-fitting integrated production line for assembling automobile electronic water pump and production process |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180306 |
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| RJ01 | Rejection of invention patent application after publication |