CN104614610B - A kind of test PCBA modularization needle-bar frock - Google Patents
A kind of test PCBA modularization needle-bar frock Download PDFInfo
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- CN104614610B CN104614610B CN201510046775.7A CN201510046775A CN104614610B CN 104614610 B CN104614610 B CN 104614610B CN 201510046775 A CN201510046775 A CN 201510046775A CN 104614610 B CN104614610 B CN 104614610B
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Abstract
A kind of test PCBA modularization needle-bar frock, including frock main body, needle-bar module and PCBA crimping modules, wherein frock main body include frock casing, needle-bar alignment pin, press mechanism, PCBA crimping module fixation clips.Replaceable needle-bar module therein includes test probe, PCBA pallets to be measured, connection bearing and spring, tests probe stuck-module, test probe switching PCB.Wherein replaceable PCBA crimping modules include module bodies, PCBA crimp columns, hand screw hole.The present invention meets the corresponding a variety of PCBA of frock test by changing needle-bar module with PCBA crimping modules, improve the versatility of frock, the frock cost of single-board testing is also reduced, needle-bar module is changed and PCBA crimping modules is convenient and swift, improve the reliability of test.
Description
Technical field
The present invention relates to one kind test PCBA (i.e. the frock of printed circuit-board assembly), more particularly to a kind of high universalizable
The modularization needle-bar frock tested applied to PCBA.
Background technology
At present, PCBA test is the important step in electronic manufacturing field, and it may determine that whether measurand is realized
Initial designs targets.Test to PCBA can reduce the fault rate of dispatching from the factory of board and device, be the weight for improving product quality
Means are wanted, therefore PCBA test is also increasingly paid attention to by each major company.One of common method of PCBA detections is to use
Probe needle-bar frock is tested, the general principle of PCBA test needle-bar frock is the test probe that single-board testing point is passed through into frock
Draw, by testing fc-specific test FC point offer test signal of the probe to PCBA, and output signal read by fc-specific test FC point,
Judge whether PCBA is operated in normal condition.
Traditional needle-bar test fixture is all man-to-man, i.e., one frock tackles a kind of PCBA.When the PCBA kinds of product
When class is excessive, tested using traditional needle-bar frock, it is necessary to which very high design cost, frock parking space and frock are safeguarded
Cost.Accordingly, it would be desirable to which a kind of higher test fixture of versatility, meets polytype PCBA tests.
The content of the invention
In view of the foregoing, the present invention provides a kind of PCBA of high universalizable modularization needle-bar frock.The modularization pin
When bed frock tests different PCBA, by changing needle-bar module and PCBA crimping modules.Board size can be met different, surveyed
The inconsistent class PCBA of pilot functional test, substantially increases the versatility of frock.
To achieve these goals, the technical scheme is that：
A kind of test PCBA modularization needle-bar frock, including frock main body, needle-bar module and PCBA crimping modules；It is special
Levy and be：
Needle-bar module is arranged in frock main body, PCBA to be measured is placed in needle-bar module and elasticity can moved up and down
Dynamic, PCBA to be measured test point is relative with the i.e. needle point in the upper end of test probe 8 for being arranged on needle-bar module, the test probe 8
Lower end is that backshank is welded on test probe switching PCB 14, and the lower sections of test probe switching PCB 14 are welded with connection terminal, test
PCBA hardware circuit；
PCBA crimping modules are fixed at the position being oppositely arranged in frock main body with needle-bar module, it is possible to by pushing
Mechanism is moved up and down；
By depressing PCBA crimping modules, the test point on PCBA to be measured is set to be contacted with test probe 8, so as to be surveyed
Examination.
The present invention still further preferably includes following scheme：
The frock main body includes lid 4, needle-bar alignment pin 5, press mechanism 1, PCBA pressure welding molds in frock casing 6, frock
Block fixation clip 2, hand screw 3, wherein frock casing are located at headspace in the lower section of frock main body, frock casing 6, are used for
Place test PCBA hardware circuit, the upper surface of the frock casing 6 is in lid 4 in the frock of central aperture, frock on lid 4
Provided with needle-bar alignment pin 5；In the upper position of frock main body, it is relatively set with PCBA crimping modules with frock casing 6 and fixes pressure
Plate 2, the PCBA crimping modules fixation clip 2 is connected with press mechanism 1, and hand is provided with PCBA crimping modules fixation clip 2
Twist screw 3.
The needle-bar module includes test probe 8, PCBA pallets 7 to be measured, connection bearing and spring 9, test probe and fixed
Module 10, needle-bar dowel hole 13, test probe switching PCB 14, the needle-bar module is respectively PCBA supports to be measured from top to bottom
Disk 7, test probe stuck-module 10, test probe switching PCB 14, test probe stuck-module 10 is used for fixed test probe
8, test probe stuck-module 10 is connected by connecting bearing with spring 9 with PCBA pallets 7 to be measured, and PCBA to be measured is placed on into pin
On the PCBA pallets 7 to be measured of bed module, coordinated by the needle-bar alignment pin 5 on needle-bar dowel hole 13 and frock main body by needle-bar
Module is fixed in frock main body.
The backshank of test probe 8 is welded on test probe switching PCB 14, and test probe is drawn by cabling inside PCB
Signal is to connection terminal, and test probe switching PCB 14 lower section is welded to connect terminal, passes through the side of grafting according to actual needs
Formula fixes test wire harness, and the backshank of test probe is welded on test probe switching PCB 14, test probe switching PCB's 14
Lower section is welded to connect terminal according to the actual requirements, and the backshank of connection terminal and probe is transferred walking in PCB 14 by testing probe
Line is connected, and connection terminal can be with plug wire, and wire harness is come from test PCBA hardware circuit.
Test probe stuck-module 10 uses clear perspex material；PCBA pallets 7 to be measured are laminated using phenolic resin
Plate material.
The PCBA crimping modules include crimping module main body 15, hand screw hole 16, PCBA crimp columns 17, by described
Hand screw hole 16 is with setting the hand screw 3 on frock main body PCBA crimping modules fixation clip 2 to be engaged, by the PCBA
The lower section that crimping module is fixed on PCBA crimping modules fixation clip 2 is relative with PCBA to be measured and PCBA pallets 7 to be measured, crimping
Multiple PCBA crimp columns 17 are fixed in the lower section of module bodies 15 by screw.
When testing PCBA to be measured, PCBA crimping modules fixation clip 2 is depressed and below pressing plate by press mechanism 1
PCBA crimping modules, by the power of the vertical direction of PCBA crimp columns 17, are acted on PCBA to be measured, PCBA to be measured and to be measured
The stress of PCBA pallets 7 simultaneously depresses connection bearing with spring 9, tests reserved test probe slot of the probe 8 by PCBA pallets 7 to be measured
Expose, and the test point reliable contacts in the presence of the test contained spring of probe 8 with PCBA.
Compared with prior art, the present invention has advantages below：(1) during the board of test different types, more needle exchange is passed through
Bed module and PCBA crimping modules can meet test of the same frock to polytype board, improve the general of frock
Property, also reduce the frock cost of single-board testing.(2) when changing needle-bar module with PCBA crimping modules, connecting line need to only be removed
And hand screw is unclamped, change convenient and swift.(3) traditional frock will test the direct welding lead of probe and be connected to subtest
On hardware, the present invention has abandoned this connected mode, and test probe is welded on the test probe of needle-bar module switching PCB,
Calibrating terminal is drawn by PCB, by pluggable test wire harness connecting test PCBA hardware circuit, the reliable of test is being improved
While property, the replacing of needle-bar module is facilitated.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is frock agent structure schematic diagram of the invention.
Fig. 2 is needle-bar modular structure schematic diagram of the invention.
Fig. 3 is PCBA crimping module structural representations of the invention.
Fig. 4 is frock overall structure diagram of the invention.
Wherein, 1 is press mechanism, and 2 be PCBA crimping module fixation clips, and 3 be hand screw, and 4 be to be covered in frock, and 5 are
Needle-bar alignment pin, 6 be frock casing, and 7 be PCBA pallets to be measured, and 8 be test probe, and 9 be connection bearing and spring, and 10 be test
Probe stuck-module, 11 be needle-bar handle, and 12 be switching PCB connecting poles, and 13 be needle-bar dowel hole, and 14 be test probe switching
PCB, 15 be crimping module main body, and 16 be hand screw hole, and 17 be PCBA crimp columns.
Embodiment
In order to illustrate technical scheme and technical purpose, below in conjunction with the accompanying drawings and embodiment is to the present invention
It is described further.
It refer to shown in Fig. 1, be the frock agent structure schematic diagram of the present invention.Before testing, needle-bar module is placed on
The top of lid 4 in frock, the dowel hole 13 of needle-bar module and four alignment pins 5 of frock main body are corresponded, PCBA pressures
Connection module is fixed on PCBA crimping modules fixation clip 2 by hand screw 3.PCBA to be measured is placed on treating for needle-bar module
Survey on PCBA pallets 7, the handle of press mechanism 1 is pulled manually, PCBA crimping modules can be depressed, makes the test on PCBA to be measured
Point is contacted with test probe 8, so as to be tested.Space has been reserved in frock casing 6, test PCBA hardware circuit is placed,
Transferred welding calibrating terminal below PCB14, connected with hardware subtest board by pluggable wire harness by test probe 8
Connect.
It refer to shown in Fig. 2, be the needle-bar modular structure schematic diagram of the present invention.Needle-bar module is mainly by three-decker group
Into PCBA pallets 7 respectively to be measured, test probe stuck-module 10, test probe switching PCB14 from top to bottom.Test probe
In stuck-module 10, the needle guard of test probe 10 is embedded in, test probe 8 is secured.Probe stuck-module 10 is tested to pass through even
Joint bearing is connected with spring 9 with PCBA pallets 7 to be measured.Test probe switching PCB14 is fixed on survey by PCB connecting poles 12 of transferring
Sound out on pin stuck-module 10.The backshank of test probe 8 is welded on test probe switching PCB14, is drawn by cabling inside PCB
Go out to test probe signals to connection terminal, test probe switching PCB14 lower section is welded to connect terminal, passed through according to actual needs
The mode of grafting fixes test wire harness, while for the versatility of frock, serving the effect for being convenient for changing wire harness.Test probe
There are needle-bar dowel hole 13 and needle-bar handle 11 on stuck-module 10, during practical application, put needle-bar module by needle-bar handle
Put in frock main body, the alignment pin 5 in frock main body is corresponded with needle-bar dowel hole 13, i.e., secure in the horizontal direction
Needle-bar module.In order to facilitate the test probe state of observation needle-bar module and the test probe switching of needle-bar module lower floor at any time
PCB14, test probe stuck-module 10 uses clear perspex material；In order to take into account the intensity and insulating properties of needle-bar module,
PCBA pallets 7 to be measured use phenolic sheet material.
It refer to shown in Fig. 3, be the PCBA crimping module structural representations of the present invention.The PCBA crimping modules of frock main body
PCBA crimping modules are fixed on work by fixation clip 2 by hand screw 3 and the correspondence of hand screw hole 16 of PCBA crimping modules
Fill in main body.The lower section of crimping module main body 15 secures PCBA crimp columns 17 by screw, when testing PCBA to be measured, by pushing
The pressure PCBA crimping modules fixation clip of mechanism 12 and the PCBA crimping modules below pressing plate, it is vertical by PCBA crimp columns 17
The power in direction, is acted on PCBA to be measured, and PCBA to be measured and the stress of PCBA pallets 7 to be measured simultaneously press connection bearing with spring 9
Under, test probe 8 is exposed by the reserved test probe slot of PCBA pallets 7 to be measured, and in the presence of the test contained spring of probe 8
With PCBA test point reliable contacts.
Refer to shown in Fig. 4, be the frock overall structure diagram of the present invention, include frock main body, needle-bar module and
PCBA crimping modules.Applicant is described in detail and described to embodiments of the invention with reference to Figure of description, but this
Art personnel are it should be understood that above example is only the preferred embodiments of the invention, and explanation is intended merely to side in detail
Reader is helped to more fully understand of the invention spiritual, and not limiting the scope of the invention, on the contrary, any based on the present invention's
Any improvement or modification that spirit is made should all be fallen within the scope and spirit of the invention.
Claims (6)
1. a kind of test PCBA modularization needle-bar frock, including frock main body, needle-bar module and PCBA crimping modules；Its feature
It is：
The frock main body includes lid (4), press mechanism (1), PCBA crimping module fixation clips in frock casing (6), frock
(2), wherein frock casing is located at headspace in the lower section of frock main body, frock casing (6), for placing the hard of test PCBA
Part circuit, the upper surface of the frock casing (6) is lid (4) in the frock of central aperture；In the upper position of frock main body, with
Frock casing (6) is relatively set with PCBA crimping modules fixation clip (2), and the PCBA crimping modules fixation clip (2) is with
Press mechanism (1) is connected；
Needle-bar module is arranged in frock main body, the needle-bar module includes test probe (8), the PCBA to be measured of central aperture
Pallet (7), connection bearing and spring (9), test probe stuck-module (10), test probe switching PCB (14), test probe are consolidated
Cover half block (10) is for fixed test probe (8), and test probe stuck-module (10) is by connecting bearing and spring (9) and centre
PCBA pallets (7) the to be measured connection of perforate, test probe (8) is exposed by the reserved test probe slot of PCBA pallets (7) to be measured, and
In its natural state, the upper end of test probe (8) is less than PCBA pallets (7) plane to be measured；PCBA to be measured is placed on needle-bar mould
On block and can resilient movement, PCBA to be measured test point and test probe (8) upper end i.e. pin for being arranged on needle-bar module up and down
Head is relative, and the lower end of the test probe (8) is that backshank is welded on test probe switching PCB (14), test probe switching PCB
(14) lower section is welded with connection terminal, and test PCBA hardware circuit is plugged on connection terminal by wire harness；
PCBA crimping modules are fixed at the position being oppositely arranged in frock main body with needle-bar module, it is possible to pass through press mechanism
(1) move up and down；The PCBA crimping modules include crimping module main body (15), PCBA crimp columns (17), and the PCBA is pressed
Connection module is fixed on the lower section of PCBA crimping modules fixation clip (2) and PCBA to be measured and PCBA pallets to be measured (7) relatively, pressure
Fixed multiple PCBA crimp columns (17) below connection module main body (15)；
When testing PCBA to be measured, PCBA crimping modules fixation clip (2) is depressed and below pressing plate by press mechanism (1)
PCBA crimping modules, by the power of PCBA crimp columns (17) vertical direction, are acted on PCBA to be measured, PCBA to be measured and to be measured
PCBA pallets (7) stress simultaneously depresses connection bearing with spring (9), tests reserved survey of the probe (8) by PCBA pallets (7) to be measured
Needle tray is soundd out to expose, and the test point reliable contacts in the presence of test probe (8) contained spring with PCBA.
2. test PCBA according to claim 1 modularization needle-bar frock, it is characterised in that：
(4) are covered in frock and are provided with needle-bar alignment pin (5)；Hand screw is provided with PCBA crimping modules fixation clip (2)
(3)。
3. test PCBA according to claim 2 modularization needle-bar frock, it is characterised in that：
Test probe stuck-module (10) is provided with dowel hole (13), by needle-bar dowel hole (13) and frock main body
Needle-bar alignment pin (5) coordinate needle-bar module is fixed in frock main body.
4. test PCBA according to claim 3 modularization needle-bar frock, it is characterised in that：
The backshank of test probe (8) is welded on test probe switching PCB (14), and test probe is drawn by cabling inside PCB
Signal is to connection terminal, and test probe switching PCB (14) lower section is welded to connect terminal, tests the hard of PCBA according to actual needs
The test wire harness of part circuit, which is plugged into, will test PCBA hardware electricity on the connection terminal on test probe switching PCB (14)
Road is connected with probe.
5. test PCBA according to claim 3 modularization needle-bar frock, it is characterised in that：Test probe stuck-module
(10) clear perspex material is used；PCBA pallets (7) to be measured use phenolic sheet material.
6. the modularization needle-bar frock of the test PCBA according to claim 3-5 any claims, it is characterised in that：
Hand screw hole (16) are set on the crimping module main body (15), by the hand screw hole (16) with being arranged on work
Hand screw (3) on dress main body PCBA crimping modules fixation clip (2) is engaged, and the PCBA crimping modules are fixed on
Multiple PCBA crimp columns are fixed by screw below the lower section of PCBA crimping modules fixation clip (2), crimping module main body (15)
(17)。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510046775.7A CN104614610B (en) | 2015-01-29 | 2015-01-29 | A kind of test PCBA modularization needle-bar frock |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510046775.7A CN104614610B (en) | 2015-01-29 | 2015-01-29 | A kind of test PCBA modularization needle-bar frock |
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| CN104614610A CN104614610A (en) | 2015-05-13 |
| CN104614610B true CN104614610B (en) | 2017-09-19 |
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| CN104614610A (en) | 2015-05-13 |
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