CN103063959A - Bed-of-nails tool for detecting circuit board - Google Patents

Bed-of-nails tool for detecting circuit board Download PDF

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Publication number
CN103063959A
CN103063959A CN2012105879923A CN201210587992A CN103063959A CN 103063959 A CN103063959 A CN 103063959A CN 2012105879923 A CN2012105879923 A CN 2012105879923A CN 201210587992 A CN201210587992 A CN 201210587992A CN 103063959 A CN103063959 A CN 103063959A
Authority
CN
China
Prior art keywords
needle
circuit board
plate
probe
board
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
Application number
CN2012105879923A
Other languages
Chinese (zh)
Inventor
白云飞
朱继才
李晓艳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Sincode Science and Technology Co Ltd
Original Assignee
BEIJING DETIANQUAN ELECTRICAL AND MECHANICAL EQUIPMENT CO LTD
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BEIJING DETIANQUAN ELECTRICAL AND MECHANICAL EQUIPMENT CO LTD filed Critical BEIJING DETIANQUAN ELECTRICAL AND MECHANICAL EQUIPMENT CO LTD
Priority to CN2012105879923A priority Critical patent/CN103063959A/en
Publication of CN103063959A publication Critical patent/CN103063959A/en
Pending legal-status Critical Current

Links

Abstract

The invention relates to the field of detection of a circuit board, in particular to a bed-of-nails tool for detecting the circuit board. The bed-of-nails tool for detecting the circuit board comprises a press bed, a slab, a needle board, a carrier board, a fixed telescopic rod and a substrate, wherein an upper strut and a wiring slot are arranged between the slab and the needle board, a locating pillar and a fixed strut are arranged on the bottom of the needle board, a concave-shaped groove and a locating hole are formed in the central position of the carrier board, the concave-shaped groove is used for placing of the circuit board, the locating hole is used for fixing the circuit board to not displace, the fixed telescopic rod, a probe and the wiring slot are arranged on the substrate, and a spring is arranged on the telescopic rod. The tool is combined with a detection device to detect electrical performance of the circuit board, particularly detect bad welding states (bad phenomena such as lack of parts and wrong parts) of components and whether short circuit of a line of the circuit board exists and broken circuit exists or not, and clearly point out the bad positions, so that maintenance efficiency of defective products and product quality are improved greatly.

Description

A kind of needle-bar frock for detection of circuit board
Technical field
The present invention relates to the detection field of circuit board, in particular to a kind of needle-bar frock for circuit board detecting.
Background technology
Circuit board can not be installed to every circuit board on the complete machine and test when producing in enormous quantities.Therefore in the actual production, technique department can manufacture and design a kind of test fixture and simulate complete machine.The design concept of test fixture is to link to each other with circuit board with a test needle-bar simulation complete machine.On the frock power supply on the electroplax, ground wire, input line and output line are received on the flexibility test pin of needle-bar, again with input signal and power supply on some switch control frocks, the corresponding output load of output on pilot lamp, hummer or the motor simulation complete machine.When being pressed onto tested circuit board on the test fixture, the input end on the frock, output terminal, power end and terminate on the circuit board, circuit board just can work.Pull the switch on the frock or start test procedure, circuit board can be controlled the corresponding signal of fuction output to the output load on the frock by it.Whether the tester just can normal according to the signal judging circuit plate work of output.But existing test fixture is not high to the bearing accuracy of circuit board, detachability is poor.
For example Granted publication number be CN 200956047 Y patent disclosure the split type test fixture of a kind of air conditioner electric control plate, comprise press, test probe, positioning fixture, test needle-bar, functional test circuit and display, described positioning fixture is the air-conditioning location-plate, and test probe, air conditioner electric control plate reference column are installed on the same board-like or frame-type test needle-bar; The functional test circuit is installed in the universal display box, and display is installed on the panel of universal display box, and the test needle-bar is fixed on the base plate of press, and test needle-bar and the split of universal test display box arrange, and connect by stube cable.But this frock needs no test needle-bar for different electric-controlled plates, and testing cost is higher.
Granted publication number be CN 201382963 Y patent disclosure a kind of pick-up unit for printed-wiring board (PWB), include thimble, patrix printed panel compression leg, counterdie upper cover plate and counterdie panel, also include printing back up pad and thimble back up pad, the upper end face of printing back up pad is cambered surface, the upper end face of bottom surface and thimble back up pad is mating surface, arc-shaped PCB is positioned at patrix printed panel compression leg below, located by the needle-bar patrix, and be placed on the upper cambered surface of printed panel back up pad, the printed panel back up pad is connected across on the counterdie upper cover plate, the thimble back up pad is parallel with the printed panel back up pad, is connected across on the counterdie panel.But this device can only detect for the printed-wiring board (PWB) of arc, and the profile of wiring board is limited to some extent, and the product versatility is not strong.
Summary of the invention
In order to solve the above-mentioned technological deficiency that exists in the prior art, the invention provides a kind of needle-bar frock for detection of circuit board, this frock is carried out the detection of electric property to circuit board in conjunction with checkout equipment, whether bad welded condition (such as bad phenomenon such as Short Item, wrong parts) and the circuit board line of concrete detecting element have short circuit, it is bad to open circuit, and explicitly point out bad position, greatly promoted defective products overhaul efficiency and product quality.
To achieve these goals, technical scheme of the present invention is:
A kind of needle-bar frock for detection of circuit board, comprise press plate, day plate, needle plate, support plate, probe and pedestal, it plate is installed in the bottom of press plate, when the assembly of described sky plate and needle plate is descending, needle plate is depressed into support plate, the test point that probe on needle plate and the pedestal touches circuit board detects, and detects complete day after tomorrow of plate and the assembly automatic homing of needle plate.
The course of work of this needle-bar frock is: at first the needle-bar frock is installed on the checkout equipment, next by needle-bar frock connecting groove plugged, then access the program name that to produce, circuit board is placed on (planform according to circuit board is placed in the Baltimore groove of support plate center, and in pilot hole in the positioning holes on circuit board insertion Baltimore groove, circuit board can not occur being uneven or the phenomenon of perk in put procedure), then both hands are pressed start key and are detected.At first needle plate at first presses down, and when being depressed into the support plate position, when namely probe touched circuit board test point, the program automatically generated data showed test results, test result out after, the needle plate automatic homing prepare to detect next circuit board.
Preferably, be provided with upper supporting column, connecting groove between described sky plate and the needle plate.Because this frock is the electric control frock, be used for plugged so be provided with connecting groove at needle plate.
Preferably, described needle plate bottom is provided with reference column, probe and vertical columns in above-mentioned arbitrary scheme.Reference column be positioned at needle plate around, when its plate was descending with the assembly of needle plate, pilot hole corresponding on reference column and the support plate cooperated, and then has guaranteed that the assembly of sky plate and needle plate is vertically descending; When needle plate was depressed into the support plate position, vertical columns was by on the surface that is pressed in circuit board, and then the assurance circuit board does not depart from or perk in Baltimore groove.
Preferably, described vertical columns is perpendicular to the bottom surface of needle plate in above-mentioned arbitrary scheme.
Preferably, the center of described support plate is provided with Baltimore groove in above-mentioned arbitrary scheme.
Preferably, described Baltimore groove is used for placing circuit board in above-mentioned arbitrary scheme, and its shape approximation is in the shape of circuit board.The physical dimension of Baltimore groove is greater than the physical dimension of circuit board, and the circuit board that can conveniently detect after finishing like this takes out in Baltimore groove.
Preferably, the bottom of described Baltimore groove is surface level in above-mentioned arbitrary scheme, and its edge is provided with U-lag.Circuit board after detection is finished is difficult to therefrom take out owing to place in the Baltimore groove, so be provided with one or more U-lags at the edge of Baltimore groove, the staff can take out circuit board at the U-lag place.
Preferably, the bottom of described Baltimore groove has probe aperture in above-mentioned arbitrary scheme.
Preferably, described pedestal is provided with fixedly expansion link and connecting groove in above-mentioned arbitrary scheme.
Preferably, the upper plane of described pedestal is provided with pilot hole in above-mentioned arbitrary scheme, and this pilot hole is through support plate, and the reference column bottom needle plate is connected.
Preferably, described pedestal is the housing of hollow in above-mentioned arbitrary scheme, its bottom four jiaos have square groove.
Preferably, described expansion link is provided with spring in above-mentioned arbitrary scheme.
Preferably, described probe is vertically implanted on the upper surface plate of pedestal in above-mentioned arbitrary scheme.
Preferably, described needle plate and support plate all adopt organic glass or bakelite to make in above-mentioned arbitrary scheme.Because characteristics such as organic glass and bakelite all have insulation, do not produce static, wear-resisting and high temperature resistant, this frock adopts the mode of electric control, requires needle plate and support plate to have insulation, does not produce static, so needle plate and support plate employing organic glass or bakelite making.
Description of drawings
Fig. 1 is the structural representation according to a preferred embodiment of the needle-bar frock for detection of circuit board of the present invention;
Fig. 2 is the front view according to needle-bar frock one preferred embodiment for detection of circuit board of the present invention shown in Fig. 1;
Fig. 3 is the structural representation according to a preferred embodiment that separates for detection of needle plate in the needle-bar frock of circuit board and support plate of the present invention shown in Fig. 1;
Fig. 4 be shown in Fig. 1 according to the structural representation for detection of a preferred embodiment of pedestal in the needle-bar frock of circuit board of the present invention;
Fig. 5 be shown in Fig. 1 according to the structural representation for detection of a preferred embodiment of support plate in the needle-bar frock of circuit board of the present invention;
Fig. 6 is the structural representation according to the preferred embodiment for detection of support plate bottom in the needle-bar frock of circuit board of the present invention shown in Fig. 1.
Attached number in the figure:
It plate 10, upper supporting column 11, needle plate 20, reference column 21, vertical columns 22, support plate 30, Baltimore groove 31, pilot hole 32, fixedly expansion link 40, spring 41, probe 50, pedestal 60, connecting groove 61, square groove 62, circuit board 70.
Embodiment
Be further described below in conjunction with the embodiment of Figure of description to the needle-bar frock for detection of circuit board of the present invention.
As shown in Figure 1-Figure 3, according to the needle-bar frock for detection of circuit board of the present invention, comprise press plate (not shown), day plate 10, needle plate 20, support plate 30, probe 50 and pedestal 60, it plate 10 is installed in the bottom of press plate (not shown), when it plate 10 is descending with the assembly of needle plate 20, needle plate 20 is depressed into support plate 30, and the test point that the probe 50 on the pedestal 60 touches circuit board 70 detects, and detects complete day after tomorrow of plate and the assembly automatic homing of needle plate.
The course of work of this needle-bar frock is: at first access the program name that will produce, then circuit board 70 is placed on that (planform according to circuit board 70 is placed in the Baltimore groove 31 of support plate 30 centers, circuit board 70 can not occur being uneven or the phenomenon of perk), next by connecting groove 61 pluggeds, both hands are pressed start key and are detected behind the power connection.At first press down at plugged rear faller 20, and then drive vertical columns 22 presses down thereupon.Press circuit board 70 at vertical columns 22, this moment is spring 41 compressed the shortening on the expansion link 40 fixedly, when the test point on the circuit board 70 contacts with the end of probe 50, it plate 10 stops downward operation with the assembly of needle plate 20, and then stoped pressing of 22 pairs of circuit boards 70 of vertical columns, the program automatically generated data shows test results.After detection was finished, day plate 10 was up with the assembly drive vertical columns 22 of needle plate 20, and then leaves circuit board 70, and this moment, support plate 30 recovered original position under the effect of spring 41, took out circuit board 70, prepared next circuit board of detection.
This frock is carried out the detection of electric property in conjunction with checkout equipment to circuit board 70, whether bad welded condition (such as bad phenomenon such as Short Item, wrong parts) and the circuit board line of concrete detecting element have short circuit, it is bad to open circuit, and explicitly point out bad position, greatly promoted defective products overhaul efficiency and product quality.Be provided with upper supporting column 11, connecting groove 61 between it plate 10 and the needle plate 20.Because this frock is the electric control frock, be used for plugged so be provided with connecting groove 61 at needle plate 20.
Needle plate 20 bottoms are provided with reference column 21 and vertical columns 22.Reference column 21 be positioned at needle plate 20 around, when day plate 10 was descending with the assembly of needle plate 20, pilot hole corresponding on reference column 21 and the support plate 20 cooperated, and then has guaranteed that the assembly of sky plate 10 and needle plate 20 is vertically descending; When needle plate 20 was depressed into support plate 30 position, vertical columns 22 was by on the surface that is pressed in circuit board 70, and then assurance circuit board 70 does not depart from or perk in Baltimore groove 31.
Be not uneven in the groove 31 or the phenomenon of perk in order to guarantee that circuit board 70 is placed on, use 22 pairs of circuit boards 70 of vertical columns to press, therefore vertical with circuit board 70 when only having vertical columns 22 can guarantee just that perpendicular to the bottom surface of needle plate 20 vertical columns 22 goes downwards to circuit board 70 surperficial, can not be uneven or the phenomenon of perk.
Expansion link 40 is provided with spring 41.On the upper surface plate of probe 50 vertical implantation pedestals 60.In order to prevent that probe 50 from wearing and tearing with probe aperture 33 Long Term Contacts, again because probe aperture 33 is attached to the bottom of support plate 30 middle concave grooves 31, so probe 50 leaves certain distance with the bottom of Baltimore groove 31, relies on spring 41 that support plate 30 is held up at this.When the same day, plate 10 was descending with the assembly of needle plate 20, needle plate 20 at first pressed down, and then drive vertical columns 22 presses down thereupon.Press circuit board 70 at vertical columns 22, this moment is spring 41 compressed the shortening on the expansion link 40 fixedly, when the test point on the circuit board 70 contacted with the end of probe 50, day plate 10 stopped downward operation with the assembly of needle plate 20, and then has stoped pressing of 22 pairs of circuit boards 70 of vertical columns.After detection was finished, day plate 10 was up with the assembly drive vertical columns 22 of needle plate 20, and then leaves circuit board 70, and this moment, support plate 30 recovered original position under the effect of spring 41.
Needle plate 20 all adopts organic glass or bakelite to make with support plate 30.Because organic glass and bakelite all have insulation, do not produce static, the characteristic such as wear-resisting and high temperature resistant, this frock adopts the mode of electric control, require needle plate 20 and support plate 30 to have insulation, do not produce static, so needle plate 20 adopts organic glass or bakelite to make with support plate 30.
As shown in Figure 4, pedestal 60 is provided with fixedly expansion link 40 and connecting groove 61.
The upper plane of pedestal 60 is provided with pilot hole 32, and this pilot hole 32 is through support plate 30, and matches with the reference column 21 of needle plate 20 bottoms.For convenient in carrying is laborsaving, pedestal 60 is processed into the housing of hollow, and four jiaos of its bottoms have square groove 62, and the plane of pedestal 60 bottoms is surface level in addition, just the parts of doing like this assurance top vertically downward.
Shown in Fig. 5-6, the center of support plate 30 is provided with Baltimore groove 31.Baltimore groove 31 is used for placing circuit board 70, and its shape approximation is in the shape of circuit board 70.The physical dimension of Baltimore groove 31 is greater than the physical dimension of circuit board 70, can conveniently detect like this circuit board 70 after finishing from Baltimore groove 31 interior taking-ups.
The bottom of Baltimore groove 31 is surface level, and its edge is provided with U-lag 34.Circuit board 70 after detection is finished is difficult to therefrom take out owing to place in the Baltimore groove 31, so be provided with one or more U-lags 34 at the edge of Baltimore groove 31, the staff can take out circuit board 70 at U-lag 34 places.
The bottom of Baltimore groove 31 has probe aperture 33.The arrangement of its probe aperture 33 is arranged respectively according to test point on the circuit board 70.When the same day, plate 10 was descending with the assembly of needle plate 20, needle plate 20 at first pressed down, and then drive vertical columns 22 presses down thereupon.Press circuit board 70 at vertical columns 22, this moment is spring 41 compressed the shortening on the expansion link 40 fixedly, pass probe aperture 33 when contacting with the end of probe 50 when the test point on the circuit board 70, and the assembly of sky plate 10 and needle plate 20 stops downward operation.
It will be apparent to those skilled in the art that the combination in any that comprises each several part in this instructions for detection of the needle-bar frock of circuit board of the present invention.As space is limited and in order to be to make instructions simple and clear, these combinations not to be introduced one by one in detail at this, but after having seen this instructions, the scope of the present invention that the combination in any of the each several part that is made of this instructions consists of is self-evident.

Claims (10)

1. for detection of the needle-bar frock of circuit board, comprise press plate, day plate (10), needle plate (20), support plate (30), probe (50) and pedestal (60), it plate (10) is installed in the bottom of press plate, it is characterized in that: when described sky plate (10) is descending with the assembly of needle plate (20), needle plate (20) is depressed into support plate (30), the test point that probe (50) on the pedestal (60) and the probe (50) on the needle plate (20) touch circuit board (70) detects, and detects the assembly automatic homing of the complete plate day after tomorrow (10) and needle plate (20).
2. needle-bar frock as claimed in claim 1 is characterized in that: be provided with upper supporting column (11), connecting groove (61) between described sky plate (10) and the needle plate (20).
3. needle-bar frock as claimed in claim 1 is characterized in that: be provided with reference column (21), probe (50) and vertical columns (22) bottom the described needle plate (20).
4. needle-bar frock as claimed in claim 3, it is characterized in that: described vertical columns (22) is perpendicular to the bottom surface of needle plate (20).
5. needle-bar frock as claimed in claim 1, it is characterized in that: the center of described support plate (30) is provided with Baltimore groove (31).
6. needle-bar frock as claimed in claim 5 is characterized in that: described Baltimore groove (31) is used for placing circuit board (70), and its shape approximation is in the shape of circuit board (70).
7. such as the needle-bar frock of claim 5 or 6, it is characterized in that: the bottom of described Baltimore groove (31) is surface level, and its edge is provided with U-lag (34).
8. such as the needle-bar frock of claim 5 or 6, it is characterized in that: the bottom of described Baltimore groove (31) has probe aperture (33).
9. needle-bar frock as claimed in claim 7, it is characterized in that: the bottom of described Baltimore groove (31) has probe aperture (33).
10. needle-bar frock as claimed in claim 1, it is characterized in that: described pedestal (60) is provided with fixedly expansion link (40) and connecting groove (61).
CN2012105879923A 2012-12-29 2012-12-29 Bed-of-nails tool for detecting circuit board Pending CN103063959A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012105879923A CN103063959A (en) 2012-12-29 2012-12-29 Bed-of-nails tool for detecting circuit board

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Application Number Priority Date Filing Date Title
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103983816A (en) * 2014-05-15 2014-08-13 珠海市运泰利自动化设备有限公司 High-precision test module
CN104090567A (en) * 2014-07-11 2014-10-08 江苏协昌电子科技有限公司 Device for detecting a semi-finished electric vehicle controller
CN104391138A (en) * 2014-11-05 2015-03-04 中山市智牛电子有限公司 Buffer structure of stage pressing plate
CN106154138A (en) * 2016-06-20 2016-11-23 东莞市联洲知识产权运营管理有限公司 A kind of locating connector being applied to integrated circuit detection
CN106325938A (en) * 2016-08-25 2017-01-11 芜湖莫森泰克汽车科技股份有限公司 Fixture for program burning of scuttle controller
CN107283408A (en) * 2017-07-10 2017-10-24 武汉冠龙远大科技有限公司 Electronic equipment detection means based on manipulator
CN108020776A (en) * 2017-12-11 2018-05-11 中国人民解放军陆军军医大学第二附属医院 Equipment fault intelligent diagnostics device and method based on frock Yu LabVIEW data collection and analysis
CN108169659A (en) * 2017-12-15 2018-06-15 芜湖致通汽车电子有限公司 A kind of circuit board module detecting tool
CN109580996A (en) * 2018-11-30 2019-04-05 英业达科技有限公司 A kind of hardware testing frame
CN109765479A (en) * 2019-01-28 2019-05-17 合肥京东方视讯科技有限公司 A kind of circuit board Short Item detection device and method

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CN102736018A (en) * 2012-06-29 2012-10-17 昆山迈致治具科技有限公司 Printed circuit board (PCB) test tool
CN202994944U (en) * 2012-12-29 2013-06-12 北京德天泉机电设备有限公司 A probe bed tool used for detecting circuit boards

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CN102062789A (en) * 2010-12-09 2011-05-18 深南电路有限公司 PCB (Printed Circuit Board) insulation resistance testing jig
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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103983816A (en) * 2014-05-15 2014-08-13 珠海市运泰利自动化设备有限公司 High-precision test module
CN104090567A (en) * 2014-07-11 2014-10-08 江苏协昌电子科技有限公司 Device for detecting a semi-finished electric vehicle controller
CN104391138A (en) * 2014-11-05 2015-03-04 中山市智牛电子有限公司 Buffer structure of stage pressing plate
CN106154138A (en) * 2016-06-20 2016-11-23 东莞市联洲知识产权运营管理有限公司 A kind of locating connector being applied to integrated circuit detection
CN106154138B (en) * 2016-06-20 2018-08-17 东莞市联洲知识产权运营管理有限公司 A kind of locating connector applied to integrated circuit detection
CN106325938A (en) * 2016-08-25 2017-01-11 芜湖莫森泰克汽车科技股份有限公司 Fixture for program burning of scuttle controller
CN107283408A (en) * 2017-07-10 2017-10-24 武汉冠龙远大科技有限公司 Electronic equipment detection means based on manipulator
CN108020776A (en) * 2017-12-11 2018-05-11 中国人民解放军陆军军医大学第二附属医院 Equipment fault intelligent diagnostics device and method based on frock Yu LabVIEW data collection and analysis
CN108169659A (en) * 2017-12-15 2018-06-15 芜湖致通汽车电子有限公司 A kind of circuit board module detecting tool
CN109580996A (en) * 2018-11-30 2019-04-05 英业达科技有限公司 A kind of hardware testing frame
CN109765479A (en) * 2019-01-28 2019-05-17 合肥京东方视讯科技有限公司 A kind of circuit board Short Item detection device and method

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