CN104614610A - Modular needle bed fixture for testing PCBA - Google Patents
Modular needle bed fixture for testing PCBA Download PDFInfo
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- CN104614610A CN104614610A CN201510046775.7A CN201510046775A CN104614610A CN 104614610 A CN104614610 A CN 104614610A CN 201510046775 A CN201510046775 A CN 201510046775A CN 104614610 A CN104614610 A CN 104614610A
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Abstract
The invention discloses a modular needle bed fixture for testing PCBA. The modular needle bed fixture for testing PCBA comprises a fixture main body, a needle bed module and a PCBA crimping module, wherein the fixture main body comprises a fixture box body, a needle bed positioning pin, a pressing mechanism and a PCBA crimping module fixing pressing plate. The replaceable needle bed module comprises a test probe, a PCBA tray to be tested, a connection bearing and spring, a test probe fixing module and a test probe switching PCB. The replaceable PCBA crimping module comprises a module main body, a PCBA crimping column and a hand screw hole. The replaceable needle bed module and the PCBA crimping module are use for meeting the different PCBA test requirements for one fixture and the universality of the fixture is raised, the fixture cost of simple plate test is reduced, the needle bed module and the PCBA crimping module can be replaced conveniently and quickly and the test reliability is raised.
Description
Technical field
The present invention relates to a kind of test PCBA (i.e. the frock of printed circuit-board assembly), particularly a kind of modularization needle-bar frock being applied to PCBA test of high universalizable.
Background technology
At present, the test of PCBA is the important step in electronic manufacturing field, and it can judge whether measurand achieves initial designs target.Can reduce the failure rate of dispatching from the factory of board and device to the test of PCBA, be the important means of improving the quality of products, and therefore the test of PCBA is also more and more subject to the attention of each major company.One of common method that PCBA detects uses test probe needle-bar frock, the ultimate principle of the test needle-bar frock of PCBA is drawn by the test probe of single-board testing point by frock, test signal is provided to the fc-specific test FC point of PCBA by test probe, and read output signal by fc-specific test FC point, judge whether PCBA is operated in normal condition.
Traditional needle-bar test fixture is all man-to-man, and namely a frock tackles a kind of PCBA.When the PCBA kind of product is too much, use traditional needle-bar frock to test, need very high design cost, frock parking space and frock maintenance cost.Therefore, need the test fixture that a kind of versatility is higher, meet polytype PCBA and test.
Summary of the invention
In view of above content, the invention provides the modularization needle-bar frock of a kind of PCBA of high universalizable.When this modularization needle-bar frock tests different PCBA, by changing needle-bar module and PCBA crimping module.Can meet board size different, the functional test of the class PCBA that test point is inconsistent, substantially increases the versatility of frock.
To achieve these goals, technical scheme of the present invention is:
Test a modularization needle-bar frock of PCBA, comprise frock main body, needle-bar module and PCBA and crimp module; It is characterized in that:
By needle-bar module installation in frock main body, PCBA to be measured to be placed in needle-bar module and can resilient movement up and down, the test point of PCBA to be measured is relative with test probe 8 upper end and needle point being arranged on needle-bar module, the lower end of described test probe 8 and backshank are welded on test probe switching PCB 14, splicing ear is welded with, the hardware circuit of test PCBA below test probe switching PCB 14;
PCBA crimps module and is fixed on the position that frock main body is oppositely arranged with needle-bar module, and can be moved up and down by press mechanism;
Crimp module by pressure PCBA, the test point on PCBA to be measured is contacted with test probe 8, thus tests.
The present invention also preferably includes following scheme further:
Described frock main body comprises frock casing 6, frock upper cover 4, needle-bar register pin 5, press mechanism 1, PCBA crimping module fixation clip 2, hand screw 3, wherein frock casing is positioned at the below of frock main body, headspace in frock casing 6, for placing the hardware circuit of test PCBA, the upper surface of described frock casing 6 is the frock upper cover 4 of central aperture, and frock upper cover 4 is provided with needle-bar register pin 5; At the upper position of frock main body, be relatively set with PCBA crimp module fixation clip 2 with frock casing 6, described PCBA crimps module fixation clip 2 and is connected with press mechanism 1, and PCBA crimps on module fixation clip 2 and is provided with hand screw 3.
Described needle-bar module comprises test probe 8, PCBA pallet 7 to be measured, connection bearing and spring 9, test probe stuck-module 10, needle-bar dowel hole 13, test probe switching PCB 14, described needle-bar module is respectively PCBA pallet 7 to be measured from top to bottom, test probe stuck-module 10, test probe switching PCB 14, test probe stuck-module 10 is for fixing test probe 8, test probe stuck-module 10 is connected with PCBA pallet 7 to be measured with spring 9 by connection bearing, PCBA to be measured is placed on the PCBA pallet 7 to be measured of needle-bar module, to be coordinated with the needle-bar register pin 5 in frock main body by needle-bar dowel hole 13 and needle-bar module is fixed in frock main body.
The backshank of test probe 8 is welded on test probe switching PCB 14, test probe signal is drawn to splicing ear by the inner cabling of PCB, the below of test probe switching PCB 14 is welded to connect terminal according to actual needs, by the mode fixing test wire harness of grafting, the backshank of test probe is welded on test probe switching PCB 14, the below of test probe switching PCB 14 is welded to connect terminal according to the actual requirements, the cabling that splicing ear is transferred in PCB 14 by test probe with the backshank of probe is connected, splicing ear can plug wire, wire harness comes from the hardware circuit of test PCBA.
Test probe stuck-module 10 uses clear perspex material; PCBA pallet 7 to be measured uses phenolic sheet material.
Described PCBA crimps module and comprises crimping module bodies 15, hand screw hole 16, PCBA crimp column 17, by described hand screw hole 16 with the hand screw 3 that frock main body PCBA crimps on module fixation clip 2 be set match, the below described PCBA crimping module being fixed on PCBA crimping module fixation clip 2 is relative with PCBA to be measured and PCBA pallet 7 to be measured, fixes multiple PCBA crimp column 17 below crimping module bodies 15 by screw.
When testing PCBA to be measured, depress PCBA by press mechanism 1 and crimp module fixation clip 2 and the crimping of the PCBA below pressing plate module, by the power of PCBA crimp column 17 vertical direction, act on PCBA to be measured, PCBA to be measured and PCBA pallet 7 to be measured stressed and connection bearing and spring 9 are depressed, test probe 8 is exposed by the reserved test probe slot of PCBA pallet 7 to be measured, and under the effect of test probe 8 contained spring with the test point reliable contacts of PCBA.
Compared with prior art, the present invention has the following advantages: during the board of (1) test different types, crimp module by replacing needle-bar module and PCBA and can meet the test of same frock to polytype board, improve the versatility of frock, also reduce the frock cost of single-board testing.(2), when replacing needle-bar module crimps module with PCBA, only need remove connecting line and unclamp hand screw, changing convenient and swift.(3) direct for test probe welding lead is connected on subtest hardware by traditional frock, the present invention has abandoned this connected mode, test probe is welded on the test probe switching PCB of needle-bar module, calibrating terminal is drawn by PCB, by the hardware circuit of pluggable test wire harness connecting test PCBA, while the reliability improving test, facilitate the replacing of needle-bar module.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is frock agent structure schematic diagram of the present invention.
Fig. 2 is needle-bar modular structure schematic diagram of the present invention.
Fig. 3 is PCBA pressure welding mold block structure schematic diagram of the present invention.
Fig. 4 is frock one-piece construction schematic diagram of the present invention.
Wherein, 1 is press mechanism, and 2 is PCBA crimping module fixation clip, 3 is hand screw, and 4 is frock upper cover, and 5 is needle-bar register pin, 6 is frock casing, and 7 is PCBA pallet to be measured, and 8 is test probe, 9 is connection bearing and spring, and 10 is test probe stuck-module, and 11 is needle-bar handle, 12 is switching PCB joint pin, and 13 is needle-bar dowel hole, and 14 is test probe switching PCB, 15 is crimping module bodies, and 16 is hand screw hole, and 17 is PCBA crimp column.
Embodiment
In order to illustrate technical scheme of the present invention and technical purpose, below in conjunction with the drawings and the specific embodiments, the present invention is described further.
Please refer to shown in Fig. 1, is frock agent structure schematic diagram of the present invention.Before testing, needle-bar module is placed on the top of frock upper cover 4, by the dowel hole 13 of needle-bar module and four register pin 5 one_to_one corresponding of frock main body, PCBA is crimped module and is fixed on PCBA crimping module fixation clip 2 by hand screw 3.PCBA to be measured is placed on the PCBA pallet 7 to be measured of needle-bar module, manually pulls the handle of press mechanism 1, PCBA can be depressed and crimp module, the test point on PCBA to be measured be contacted with test probe 8, thus tests.Reserve space in frock casing 6, placed the hardware circuit of test PCBA, transferred below PCB14 by test probe 8 and weld calibrating terminal, be connected by pluggable wire harness with hardware subtest board.
Please refer to shown in Fig. 2, is needle-bar modular structure schematic diagram of the present invention.Needle-bar module is mainly made up of three-decker, is respectively PCBA pallet 7 to be measured from top to bottom, test probe stuck-module 10, test probe switching PCB14.In test probe stuck-module 10, embedded in the needle guard of test probe 10, secure test probe 8.Test probe stuck-module 10 is connected with PCBA pallet 7 to be measured with spring 9 by connection bearing.Test probe switching PCB14 is fixed on test probe stuck-module 10 by switching PCB joint pin 12.The backshank of test probe 8 is welded on test probe switching PCB14, test probe signal is drawn to splicing ear by the inner cabling of PCB, the below of test probe switching PCB14 is welded to connect terminal according to actual needs, by the mode fixing test wire harness of grafting, simultaneously in order to the versatility of frock, serve the effect being convenient for changing wire harness.Test probe stuck-module 10 there are needle-bar dowel hole 13 and needle-bar handle 11, during practical application, be placed in frock main body by needle-bar handle by needle-bar module, the register pin 5 in frock main body and needle-bar dowel hole 13 one_to_one corresponding, namely secure needle-bar module in the horizontal direction.Observe the test probe state of needle-bar module and the test probe switching PCB14 of needle-bar module lower floor in order to convenient at any time, test probe stuck-module 10 uses clear perspex material; In order to take into account intensity and the insulativity of needle-bar module, PCBA pallet 7 to be measured uses phenolic sheet material.
Please refer to shown in Fig. 3, is PCBA pressure welding mold block structure schematic diagram of the present invention.The PCBA of frock main body crimps hand screw hole 16 correspondence that module fixation clip 2 passes through hand screw 3 and PCBA crimping module, PCBA is crimped module and is fixed in frock main body.PCBA crimp column 17 is secured by screw below crimping module bodies 15, when testing PCBA to be measured, depress PCBA by press mechanism 1 and crimp module fixation clip 2 and the crimping of the PCBA below pressing plate module, by the power of PCBA crimp column 17 vertical direction, act on PCBA to be measured, PCBA to be measured and PCBA pallet 7 to be measured stressed and connection bearing and spring 9 are depressed, test probe 8 is exposed by the reserved test probe slot of PCBA pallet 7 to be measured, and under the effect of test probe 8 contained spring with the test point reliable contacts of PCBA.
Please refer to shown in Fig. 4, be frock one-piece construction schematic diagram of the present invention, include frock main body, needle-bar module and PCBA crimp module.Applicant has done detailed description and description in conjunction with Figure of description to embodiments of the invention; but those skilled in the art should understand that; above embodiment is only the preferred embodiments of the invention; detailed explanation is just in order to help reader to understand spirit of the present invention better; and be not limiting the scope of the invention; on the contrary, any any improvement of doing based on invention of the present invention spirit or modify all should drop within protection scope of the present invention.
Claims (7)
1. test a modularization needle-bar frock of PCBA, comprise frock main body, needle-bar module and PCBA and crimp module; It is characterized in that:
By needle-bar module installation in frock main body, PCBA to be measured to be placed in needle-bar module and can resilient movement up and down, the test point of PCBA to be measured is relative with test probe (8) upper end and syringe needle being arranged on needle-bar module, the lower end of described test probe (8) and backshank are welded on test probe switching PCB (14), test probe switching PCB (14) below is welded with splicing ear, and the hardware circuit of test PCBA is plugged on splicing ear by wire harness;
PCBA crimps module and is fixed on the position that frock main body is oppositely arranged with needle-bar module, and can pass through press mechanism (1) and move up and down.
Crimp module by pressure PCBA, the test point on PCBA to be measured is contacted with test probe (8), thus tests.
2. the modularization needle-bar frock of test PCBA according to claim 1, is characterized in that:
Described frock main body comprises frock casing (6), frock upper cover (4), needle-bar register pin (5), press mechanism (1), PCBA crimping module fixation clip (2), hand screw (3), wherein frock casing is positioned at the below of frock main body, headspace in frock casing (6), for placing the hardware circuit of test PCBA, the upper surface of described frock casing (6) is the frock upper cover (4) of central aperture, and frock upper cover (4) is provided with needle-bar register pin (5); At the upper position of frock main body, be relatively set with PCBA with frock casing (6) and crimp module fixation clip (2), described PCBA crimps module fixation clip (2) and is connected with press mechanism (1), and PCBA crimps in module fixation clip (2) and is provided with hand screw (3).
3. the modularization needle-bar frock of test PCBA according to claim 2, is characterized in that:
Described needle-bar module comprises test probe (8), PCBA pallet (7) to be measured, connection bearing and spring (9), test probe stuck-module (10), needle-bar dowel hole (13), test probe switching PCB (14), described needle-bar module is respectively PCBA pallet (7) to be measured from top to bottom, test probe stuck-module (10), test probe switching PCB (14), test probe stuck-module (10) is for fixing test probe (8), test probe stuck-module (10) is connected with PCBA pallet (7) to be measured with spring (9) by connection bearing, PCBA to be measured is placed on the PCBA pallet (7) to be measured of needle-bar module, to be coordinated with the needle-bar register pin (5) in frock main body by needle-bar dowel hole (13) and needle-bar module is fixed in frock main body.
4. the modularization needle-bar frock of test PCBA according to claim 3, is characterized in that:
The backshank of test probe (8) is welded on test probe switching PCB (14), test probe signal is drawn to splicing ear by the inner cabling of PCB, the below of test probe switching PCB (14) is welded to connect terminal according to actual needs, the test wire harness of the hardware circuit of test PCBA is plugged on the splicing ear on test probe switching PCB (14), and the hardware circuit being about to test PCBA is connected with probe.
5. the modularization needle-bar frock of test PCBA according to claim 3, is characterized in that: test probe stuck-module (10) uses clear perspex material; PCBA pallet (7) to be measured uses phenolic sheet material.
6. the modularization needle-bar frock of the test PCBA according to the arbitrary claim of claim 3-5, is characterized in that:
Described PCBA crimps module and comprises crimping module bodies (15), hand screw hole (16), PCBA crimp column (17), by described hand screw hole (16) with the hand screw (3) that frock main body PCBA crimps on module fixation clip (2) be set match, the below that described PCBA crimping module is fixed on PCBA crimping module fixation clip (2) is relative with PCBA to be measured and PCBA pallet to be measured (7), and multiple PCBA crimp column (17) is fixed by screw in crimping module bodies (15) below.
7. the modularization needle-bar frock of test PCBA according to claim 6, is characterized in that:
When testing PCBA to be measured, module fixation clip (2) and the crimping of the PCBA below pressing plate module is crimped by press mechanism (1) pressure PCBA, by the power of PCBA crimp column (17) vertical direction, act on PCBA to be measured, PCBA to be measured and PCBA pallet to be measured (7) stressed and connection bearing and spring (9) are depressed, test probe (8) is exposed by the reserved test probe slot of PCBA pallet (7) to be measured, and under the effect of test probe (8) contained spring with the test point reliable contacts of PCBA.
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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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| CN201510046775.7A CN104614610B (en) | 2015-01-29 | 2015-01-29 | A kind of test PCBA modularization needle-bar frock |
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| CN104614610A true CN104614610A (en) | 2015-05-13 |
| CN104614610B CN104614610B (en) | 2017-09-19 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104991094A (en) * | 2015-07-14 | 2015-10-21 | 苏州高新区世纪福科技有限公司 | General PCBA standard test fixture |
| CN106226684A (en) * | 2016-09-22 | 2016-12-14 | 合肥京东方光电科技有限公司 | Assembling printed circuit board test fixture |
| CN106249133A (en) * | 2016-09-07 | 2016-12-21 | 广州视源电子科技股份有限公司 | Termination |
| CN107314885A (en) * | 2017-06-27 | 2017-11-03 | 太平洋（聊城）光电科技有限公司 | A kind of array type is multiple to receive that light engine is optical coupled and measurement jig |
| CN107831344A (en) * | 2017-12-19 | 2018-03-23 | 成都芯通软件有限公司 | One kind mixing board test device, test equipment and method of testing |
| CN108072825A (en) * | 2016-11-18 | 2018-05-25 | 富士施乐株式会社 | Check device |
| CN108241121A (en) * | 2018-01-24 | 2018-07-03 | 安徽锐能科技有限公司 | For the test device of PCB |
| CN110095709A (en) * | 2019-05-15 | 2019-08-06 | 浙江德力西电器有限公司 | ICT test fixture |
| CN110596437A (en) * | 2019-09-29 | 2019-12-20 | 杭州德创电子股份有限公司 | Automatic crimping device for crimping High Performance Liquid Chromatography (HPLC) communication module of electric energy meter |
| CN113109610A (en) * | 2021-04-06 | 2021-07-13 | 北京中微普业科技有限公司 | RF bare chip flat probe test tool |
| CN113835018A (en) * | 2021-09-30 | 2021-12-24 | 安徽南瑞中天电力电子有限公司 | PCBA veneer test system based on laser multi-point positioning |
| CN117741409A (en) * | 2023-12-28 | 2024-03-22 | 苏州威尔菲特实业发展有限公司 | PCBA board testing arrangement with positioning mechanism with adjustable |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104991094A (en) * | 2015-07-14 | 2015-10-21 | 苏州高新区世纪福科技有限公司 | General PCBA standard test fixture |
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| CN108072825A (en) * | 2016-11-18 | 2018-05-25 | 富士施乐株式会社 | Check device |
| CN107314885A (en) * | 2017-06-27 | 2017-11-03 | 太平洋（聊城）光电科技有限公司 | A kind of array type is multiple to receive that light engine is optical coupled and measurement jig |
| CN107831344A (en) * | 2017-12-19 | 2018-03-23 | 成都芯通软件有限公司 | One kind mixing board test device, test equipment and method of testing |
| CN108241121A (en) * | 2018-01-24 | 2018-07-03 | 安徽锐能科技有限公司 | For the test device of PCB |
| CN110095709A (en) * | 2019-05-15 | 2019-08-06 | 浙江德力西电器有限公司 | ICT test fixture |
| CN110596437A (en) * | 2019-09-29 | 2019-12-20 | 杭州德创电子股份有限公司 | Automatic crimping device for crimping High Performance Liquid Chromatography (HPLC) communication module of electric energy meter |
| CN110596437B (en) * | 2019-09-29 | 2024-06-11 | 杭州德创电子股份有限公司 | Automatic crimping device for crimping HPLC communication module of electric energy meter |
| CN113109610A (en) * | 2021-04-06 | 2021-07-13 | 北京中微普业科技有限公司 | RF bare chip flat probe test tool |
| CN113835018A (en) * | 2021-09-30 | 2021-12-24 | 安徽南瑞中天电力电子有限公司 | PCBA veneer test system based on laser multi-point positioning |
| CN113835018B (en) * | 2021-09-30 | 2023-12-01 | 安徽南瑞中天电力电子有限公司 | PCBA single board test system based on laser multi-point positioning |
| CN117741409A (en) * | 2023-12-28 | 2024-03-22 | 苏州威尔菲特实业发展有限公司 | PCBA board testing arrangement with positioning mechanism with adjustable |
| CN117741409B (en) * | 2023-12-28 | 2024-06-18 | 苏州威尔菲特实业发展有限公司 | PCBA board testing arrangement with positioning mechanism with adjustable |
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