CN103454574A - Static testing device for circuit board - Google Patents
Static testing device for circuit board Download PDFInfo
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- CN103454574A CN103454574A CN2013103595315A CN201310359531A CN103454574A CN 103454574 A CN103454574 A CN 103454574A CN 2013103595315 A CN2013103595315 A CN 2013103595315A CN 201310359531 A CN201310359531 A CN 201310359531A CN 103454574 A CN103454574 A CN 103454574A
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- circuit board
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- pneumatic cylinder
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Abstract
The invention discloses a static testing device for a circuit board. The static testing device is characterized in that an upper computer of the testing device is respectively connected with a testing board and a pneumatic cylinder, the pneumatic cylinder is connected with a slab, and a plurality of pressing rods are arranged on the slab. Probes are arranged in the testing board. When the testing device is used for testing, the circuit board to be tested is placed on the testing board, the probes correspondingly make contact with all test points of the circuit board to be tested, the upper computer controls the pneumatic cylinder to drive the slab to descend, the pressing rods press the circuit board to be tested for testing, and the probes are connected with a testing unit to transmit test data back to the upper computer. The static testing device has the advantages that testing time is shortened, quality can be strictly controlled through computer control, reliability is high, unqualified circuit boards are tested accurately, requirements for levels of a tester and a technician are low, pressure of maintaining stocks is reduced, the finished product rate of production is greatly improved, and product quality is improved.
Description
Technical field
The present invention relates to production and the check field of circuit board, particularly a kind of static tester of circuit board.
Background technology
Along with the progress of science and technology, the electronics industry development is advanced by leaps and bounds, and whole industry presents vitality, and electronic system becomes increasingly complex, and the reliability and maintainability of electronic system requires also more and more higher.
Circuit board is as the important component part in the electronic system research and production, and the quality of its quality directly affects the quality of whole equipment, and production and experience cycle have influence on machine debugging progress and delivery time.Thereby debugging circuit board is to be related to the quality of electronic system and the important step of production cycle.
What traditional method mainly utilized that people's naked eyes check its circuit board mainly sees components and parts direction and solder skip, and process is slow, and this method of inspection can't be found out the problem of circuit board inherence.
For the problems referred to above, how to have improved the checkability of circuit board, shortening round of visits is the problem that prior art need to solve.
Summary of the invention
Technical matters to be solved by this invention is, a kind of static tester of circuit board is provided, and to reach the checkability that has improved circuit board, shortens the purpose of round of visits.
For achieving the above object, technical scheme of the present invention is that a kind of static tester of circuit board is characterized in that: described proving installation is host computer connecting test platform and pneumatic cylinder respectively, and pneumatic cylinder connects a day plate, and a day plate is provided with a plurality of pressure bars; Be provided with probe in test board; Described proving installation is placed on circuit board under test on test board when test, the probe correspondence touches on each test point of circuit board under test, the PC control pneumatic cylinder drives day plate and descends, pressure bar is pushed down circuit board under test and is tested, and probe connecting test unit sends back host computer by test data.
When described proving installation is tested circuit board at probe, probe utilizes the principle on Virtual ground between operational amplifier two input ends, makes the two ends of the connected part of on circuit board part to be measured idiostatic, after isolation, is measured, and has guaranteed the accuracy of measuring.
Be respectively equipped with protection microswitch and testing jiggle switch on described pneumatic cylinder.
Be provided with two motherboards in the space of described test board below, on every motherboard, can vertically place a plurality of circuit boards.
Described test board below is provided with press signal controlling joint and press control card, and the dropping distance of pneumatic cylinder is controlled and avoided damaging circuit board.
Described test board is that fender is fixed to needle plate by fixed screw, and needle plate is placed on test board, and fixed pin is fixed through fender, needle plate.
Place circuit board on described fender, probe contacts with circuit board through fender.
Be provided with spring between described fender and needle plate, spring is compressive state.
A kind of static tester of circuit board owing to adopting above-mentioned structure, the invention has the advantages that: 1, shorten the test duration: general populated circuit board according to appointment 300 part ICT be approximately 3-4 second.To complexity, but also comprised the functional test after powering on; 2, can see through computer and control, strict control of quality; 3, the reliability that has height, detect undesirable species and accurate; 4, test man and technician's level requirement reduce: as long as the normal operator gets final product Operation and Maintenance; 5, economization stock, spare unit; Reduce maintenance of stock pressure, greatly improve the rate that manufactures a finished product; 6, promote quality.Reduce the fraction defective of product, improve corporate image.
The accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation;
The structural representation of the static tester that Fig. 1 is a kind of circuit board of the present invention;
The partial structurtes schematic diagram of the static tester that Fig. 2 is a kind of circuit board of the present invention;
The circuit theory diagrams that the static tester that Fig. 3 is a kind of circuit board of the present invention is isolated circuit board element;
The system flowchart of the static tester that Fig. 4 is a kind of circuit board of the present invention;
In Fig. 1-2,1, host computer; 2, pneumatic cylinder; 3, test board; 4, circuit board; 5, motherboard; 6, protection microswitch; 7, testing jiggle switch; 8, day plate; 9, pressure bar; 10, fender; 11, needle plate; 12, fixed screw; 13, fixed pin; 14, spring; 15, probe; 16, press signal controlling joint; 17, press control card.
Embodiment
The present invention can, within the short several seconds, detect part on populated circuit board entirely: resistance, electric capacity, inductance, electric crystal, FET, LED, whether the parts such as common diode, voltage stabilizing diode, light lotus root device, IC, operate in the specification of design.By test, the present invention can find out the deficient manufacturing procedure place in advance, as line short, open circuit, the bad problems such as assembly missing part, reverse, wrong part, empty weldering, feed back to the improvement of processing procedure.And fault or bad information are printed off to test result with printer, comprise abort situation, parts standard value, test value, for maintenance personal's reference.Can effectively reduce personnel to the product technology dependency degree, not need product circuit is understood, maintainability is arranged in the same old way.Host computer can the bad information of test statistics, and production management personnel analyzed, and can find out various bad generation reasons, comprises artificial factor, make it piecemeal solution, perfect, make a comment or criticism, use circuit board fabrication and the quality ability of promoting.Client's that above function brings enormous benefits, make the present invention extensively to be used.
Concrete, as shown in Figure 1-2, the present invention is host computer 1 connecting test platform 3 and pneumatic cylinder 2 respectively, and pneumatic cylinder 2 connects a day plate 8, and a day plate 8 is provided with a plurality of pressure bars 9; Be provided with probe 15 in test board 3; Proving installation is placed on circuit board to be measured 4 on test board 3 when test, probe 15 correspondences touch on each test point of circuit board under test 4, host computer 1 is controlled pneumatic cylinder 2 and is driven 8 declines of day plate, pressure bar 9 is pushed down circuit board under test 4 and is tested, and probe 15 connecting test unit send back host computer 1 by test data.
When proving installation is tested at 15 pairs of circuit boards 4 of probe, probe 15 utilizes the principle on Virtual ground between operational amplifier two input ends, after making the two ends of the connected part of on circuit board 4 part to be measured idiostatic, after isolation, measured, guaranteed the accuracy of measuring.Be isolated into the very important a kind of application technology of the present invention, be that the part that part to be measured is connected is isolated, make the measurement of part to be measured unaffected, as shown in Figure 3, the voltage follower (Voltage Follower) of application Design of Amplifiers, output voltage (VG) is equated in its input voltage (VA), and the principle on Virtual ground (Virtual Ground) between two input ends of operational amplifier, make the two ends of the part connected in part to be measured idiostatic, do not shunt and can not produce the measurement that Come affects part to be measured, the part that part just to be measured is connected as be both is isolated.After isolation, the electric current of the R1 that flows through approaches zero, the unlikely measurement that affects R.When test pattern is constant current mode, isolate high point [Pin+]; When if test pattern is constant voltage mode, isolate low spot [Pin-].
Be respectively equipped with protection microswitch 6 and testing jiggle switch 7 on pneumatic cylinder 2.Be provided with two motherboards 5 in the space of test board 3 belows, on every motherboard 5, can vertically place a plurality of circuit boards 4.
Place circuit board 4 on fender 10, probe 15 contacts with circuit board 4 through fender 10.Be provided with spring 14 between fender 10 and needle plate 11, spring 14 is compressive state.
When carrying out test operation, at first proving installation is installed, at switch power supply, then computer is opened, enter system software, enter key frame, and then put circuit board 4 and start to detect, as found trouble spot, will report to the police, as qualified in shown without trouble spot.
The present invention has electrochemical capacitor polarity test function ECJ; The empty weldering of surface mount elements test function TAJ; Automatism isolation point selection function; Automatically open short circuit, element learning functionality; Connecting plate launches and connecting plate is jumped brake automatically; Windows window-operating interface; Superpower circuit board figure is inspected function (Windows); Testing journal sheet and test statistics analytic function.Owing to having above-mentioned function, the present invention effectively shortens the test duration, and general populated circuit board 300 parts according to appointment is approximately 3-4 second.To complexity, but also comprised the functional test after powering on; The quality settings function, can see through computer and control, strict control of quality; Have multiple measuring technology, the reliability of height, detect undesirable species and accurate; Test man and technician's level requirement reduce, as long as the normal operator gets final product Operation and Maintenance; Economization stock, spare unit, reduce maintenance of stock pressure, greatly improve the rate that manufactures a finished product; Greatly promote quality.Reduce the fraction defective of product, improve corporate image.
The above is exemplarily described the present invention by reference to the accompanying drawings; obviously specific implementation of the present invention is not subject to the restrictions described above; as long as the various improvement that adopted technical solution of the present invention to carry out, or directly apply to other occasion without improvement, all within protection scope of the present invention.
Claims (8)
1. the static tester of a circuit board is characterized in that: described proving installation is host computer (1) connecting test platform (3) and pneumatic cylinder (2) respectively, and pneumatic cylinder (2) connects a day plate (8), and a day plate (8) is provided with a plurality of pressure bars (9); Be provided with probe (15) in test board (3); Described proving installation is placed on circuit board under test (4) on test board (3) when test, probe (15) correspondence touches on each test point of circuit board under test (4), host computer (1) is controlled pneumatic cylinder (2) and is driven a day plate (8) decline, pressure bar (9) is pushed down circuit board under test (4) and is tested, and probe (15) connecting test unit sends back host computer (1) by test data.
2. the static tester of a kind of circuit board according to claim 1, it is characterized in that: described proving installation at probe (15) to circuit board (4) while being tested, probe (15) utilizes the principle on Virtual ground between operational amplifier two input ends, make the two ends of the connected part of on circuit board part to be measured idiostatic, measured after isolation.
3. the static tester of a kind of circuit board according to claim 1, is characterized in that: be respectively equipped with protection microswitch (6) and testing jiggle switch (7) on described pneumatic cylinder (2).
4. the static tester of a kind of circuit board according to claim 1, is characterized in that: be provided with two motherboards (5) in the space of described test board (3) below, on every motherboard (5), can vertically place a plurality of circuit boards (4).
5. the static tester of a kind of circuit board according to claim 1, is characterized in that: be provided with press signal controlling joint (16) and press control card (17) below described test board (3).
6. the static tester of a kind of circuit board according to claim 1; it is characterized in that: described test board (3) is fixed to needle plate (11) for fender (10) by fixed screw (12); it is upper that needle plate (11) is placed on test board (3), and fixed pin is worn (13) overprotection plate (10), needle plate (11) is fixed.
7. according to the static tester of claim 1 or 6 described a kind of circuit board, it is characterized in that: the upper circuit board (4) of placing of described fender (10), probe (15) contacts with circuit board (4) through fender (10).
8. the static tester of a kind of circuit board according to claim 6, it is characterized in that: be provided with spring (14) between described fender (10) and needle plate (11), spring (14) is compressive state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103595315A CN103454574A (en) | 2013-08-16 | 2013-08-16 | Static testing device for circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103595315A CN103454574A (en) | 2013-08-16 | 2013-08-16 | Static testing device for circuit board |
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| CN103454574A true CN103454574A (en) | 2013-12-18 |
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| CN2013103595315A Pending CN103454574A (en) | 2013-08-16 | 2013-08-16 | Static testing device for circuit board |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297673A (en) * | 2014-11-14 | 2015-01-21 | 镇江华印电路板有限公司 | Circuit board fault detector |
| CN104749402A (en) * | 2015-04-10 | 2015-07-01 | 哈尔滨力盛达机电科技有限公司 | Automatic circuit board contact detection device |
| CN108132406A (en) * | 2017-12-13 | 2018-06-08 | 格力电器（武汉）有限公司 | A kind of electron device testing equipment |
| CN110473797A (en) * | 2019-07-08 | 2019-11-19 | 盐城华旭光电技术有限公司 | The inspection system and method for conductor integrated circuit device |
| CN111613263A (en) * | 2020-05-25 | 2020-09-01 | 成都思科瑞微电子股份有限公司 | SRAM function testing device for random static memory chip |
Citations (7)
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| US4686467A (en) * | 1984-03-21 | 1987-08-11 | Dit-Mco International Corp. | Circuit board testing system |
| CN201307128Y (en) * | 2008-11-28 | 2009-09-09 | 耀德精密组件科技发展(深圳)有限公司 | ICT pneumatic test fixture |
| CN101881810A (en) * | 2010-07-08 | 2010-11-10 | 福建捷联电子有限公司 | New key board automatic test equipment and test circuit thereof |
| CN101995543A (en) * | 2010-10-09 | 2011-03-30 | 佛山市中格威电子有限公司 | Electric control board testing platform with detection signal and power supply isolation function |
| CN201903626U (en) * | 2010-12-24 | 2011-07-20 | 东莞市盈聚电子有限公司 | Pneumatic testing device |
| CN102650679A (en) * | 2012-05-04 | 2012-08-29 | 惠州市蓝微电子有限公司 | Multi-channel calibration and checking equipment for power management ICs (integrated circuits) |
| CN203551736U (en) * | 2013-08-16 | 2014-04-16 | 安徽鑫龙电器股份有限公司 | Static test device for circuit board |
-
2013
- 2013-08-16 CN CN2013103595315A patent/CN103454574A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4686467A (en) * | 1984-03-21 | 1987-08-11 | Dit-Mco International Corp. | Circuit board testing system |
| CN201307128Y (en) * | 2008-11-28 | 2009-09-09 | 耀德精密组件科技发展(深圳)有限公司 | ICT pneumatic test fixture |
| CN101881810A (en) * | 2010-07-08 | 2010-11-10 | 福建捷联电子有限公司 | New key board automatic test equipment and test circuit thereof |
| CN101995543A (en) * | 2010-10-09 | 2011-03-30 | 佛山市中格威电子有限公司 | Electric control board testing platform with detection signal and power supply isolation function |
| CN201903626U (en) * | 2010-12-24 | 2011-07-20 | 东莞市盈聚电子有限公司 | Pneumatic testing device |
| CN102650679A (en) * | 2012-05-04 | 2012-08-29 | 惠州市蓝微电子有限公司 | Multi-channel calibration and checking equipment for power management ICs (integrated circuits) |
| CN203551736U (en) * | 2013-08-16 | 2014-04-16 | 安徽鑫龙电器股份有限公司 | Static test device for circuit board |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297673A (en) * | 2014-11-14 | 2015-01-21 | 镇江华印电路板有限公司 | Circuit board fault detector |
| CN104749402A (en) * | 2015-04-10 | 2015-07-01 | 哈尔滨力盛达机电科技有限公司 | Automatic circuit board contact detection device |
| CN108132406A (en) * | 2017-12-13 | 2018-06-08 | 格力电器（武汉）有限公司 | A kind of electron device testing equipment |
| CN110473797A (en) * | 2019-07-08 | 2019-11-19 | 盐城华旭光电技术有限公司 | The inspection system and method for conductor integrated circuit device |
| CN111613263A (en) * | 2020-05-25 | 2020-09-01 | 成都思科瑞微电子股份有限公司 | SRAM function testing device for random static memory chip |
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| CB02 | Change of applicant information |
Address after: 241008 Anhui Province, Wuhu City Jiuhua Jiujiang District Road No. 118 Applicant after: ANHUI ZHONGDIAN XINGFA AND XINLONG TECHNOLOGY CO., LTD. Address before: 241008 Anhui Province, Wuhu City Jiuhua Jiujiang District Road No. 118 Applicant before: Xinlong Electric-Appliance Co., Ltd., Anhui |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131218 |
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| WD01 | Invention patent application deemed withdrawn after publication |