CN2857033Y - Smoothness detection gear of circuit board test floor - Google Patents
Smoothness detection gear of circuit board test floor Download PDFInfo
- Publication number
- CN2857033Y CN2857033Y CN 200520146676 CN200520146676U CN2857033Y CN 2857033 Y CN2857033 Y CN 2857033Y CN 200520146676 CN200520146676 CN 200520146676 CN 200520146676 U CN200520146676 U CN 200520146676U CN 2857033 Y CN2857033 Y CN 2857033Y
- Authority
- CN
- China
- Prior art keywords
- circuit board
- test
- flatness
- testing agency
- needle stand
- 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.)
- Expired - Lifetime
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- Tests Of Electronic Circuits (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
A smoothness detection gear of circuit board test floor is used for smoothness detection of the circuit board placed on the test floor, which comprises at least three detection units arranged on the test floor in a manner that the three detection units are in the same plane but not in the same straight line and used for detecting whether the circuit board is set level or not. The utility model is capable of preventing the circuit board from being damaged caused by unevenness of the circuit board on the test floor and overcoming the disadvantage that the test floor could not spot measure the circuit board.
Description
Technical field
The utility model is the flatness testing agency about a kind of circuit board test platform, particularly earlier this circuit board is carried out the device that flatness detects about circuit board being placed on when doing testing electrical property on the test board.
Background technology
Existing circuit board being done the mode of testing electrical property, is circuit board to be placed on a circuit detector (In Circuit Tester ICT) makes testing electrical property, and this circuit detector mainly is made up of base and the test needle stand that is positioned on this base.During test circuit board is placed on the base, this test needle stand is contacted with circuit board component, the failure problems such as the missing of general and particular components, misloading, wiring board open circuit or short circuit with the resistance of accurately measuring this circuit board, inductance, electric capacity, diode etc., and the position of fault element, open circuit or short circuit accurately is shown to operator.The test speed of this test board is fast, is suitable for the wiring board and the large-scale production test of single product.
The test needle stand of this test board is driven by pneumatic cylinder, and this test needle stand is before pressing down test, and employing manual detection mode testing circuit plate is placed on the flatness on this test board base.But there are shortcomings such as randomness and error are big in this measurement method of planeness, and when the flatness of placing when this circuit board was bad, this test needle stand pressed down and can cause the damage of test needle stand on circuit board, or circuit board is damaged by pressure.
Therefore, how to provide a kind of detection technique that can accurately make things convenient for decision circuitry plate flatness on test board, become the technical matters that needs to be resolved hurrily.
The utility model content
For overcoming the shortcoming of above-mentioned prior art, fundamental purpose of the present utility model is to provide a kind of flatness testing agency of circuit board test platform, overcomes the shortcoming of damaging circuit board by pressure that the artificial judgment flatness may cause.
Another purpose of the present utility model is to provide a kind of flatness testing agency of circuit board test platform, and the testing electrical property result avoids making the mistake.
Another purpose of the present utility model is to provide a kind of flatness testing agency of circuit board test platform, has simple in structure and practical reliable.
For achieving the above object, the utility model provides a kind of flatness testing agency of circuit board test platform, it is provided with this flatness testing agency at this test board, by this flatness testing agency the circuit board that is placed on this test board is carried out the flatness detection, this flatness testing agency comprises at least: three detecting units are located on this test board same plane and not in collinear position.
This test board is made up of a base and the test needle stand that is positioned on this base, this test needle stand is by control circuit control upper and lower displacement, this control circuit electrically connects this three detecting units, when this circuit board is placed on the base of this test board, three detecting units that are positioned at susceptor surface detect the flatness of this circuit board, to control the pressing action of this test needle stand, utilize constitute conplane principle at 3, when these three detecting units detect circuit board simultaneously, represent that promptly this circuit board is positioned at smooth position, the test needle stand of this test board just can move down to press to touch at this circuit board surface and carry out testing electrical property; Otherwise, if one in three detecting units does not detect circuit board, represent that promptly this circuit board is in the out-of-flatness state, must adopt alternate manner to do testing electrical property, therefore, can avoid when this circuit board is in the out-of-flatness state, carrying out testing electrical property, avoid the tested needle stand of this circuit board to damage by pressure, maybe should damage by test needle stand, and can't put fully can prevent from when circuit board is in the out-of-flatness state, to make testing electrical property the time and touch check point and the result of the testing electrical property that makes the mistake.
This control circuit also comprises two gauge tap at least, when these three detecting units contact with circuit board fully, do not pushed conducting simultaneously for one in these two gauge tap by the operator both hands, then this test needle stand does not just have pressing action, can avoid the operator both hands to be pressed down the accident that the test needle stand weighs wounded.
Therefore, compared with prior art, the utility model the susceptor surface of this test board be provided with at least three on same plane not at collinear detecting unit as limit switch, constitute conplane principle testing circuit plate flatness by 3 and whether reach test request, and testing electrical property can't be carried out, the artificial judgment flatness that can overcome the utility model very easily causes the shortcoming of damaging circuit board by pressure or causing the test needle stand to damage, avoid the situation of testing electrical property mistake to produce, and simple in structure easy to implement.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the schematic perspective view of the utility model embodiment; And
Fig. 3 is a circuit diagram of the present utility model.
Embodiment
Embodiment
As Fig. 1 and Fig. 2 is the structural representation of the embodiment of flatness testing agency of circuit board test platform of the present utility model.Be provided with flatness testing agency 2 at a test board 1, this test board 1 is made up of a base 11 and the test needle stand 12 that is positioned on this base, this flatness testing agency 2 is made up of three detecting unit 21a, 21b and 21c as limit switch at least, this detecting unit 21a, 21b and 21c are located at these base 11 surfaces and go up on the same plane, and these three detecting units are not on same straight line.Circuit board to be tested 3 is placed on the base 11, can constitutes conplane principle, the circuit board 3 that is placed on this base 11 is done the flatness detection by these three detecting unit 21a, 21b and 21c.
See also Fig. 3, these three detecting unit 21a, 21b and 21c electrically connect a control circuit 4, these three detecting unit 21a, 21b and 21c are series connection, and electrically connect this control circuit 4, and this control circuit 4 also comprises at least: the gauge tap 51a of two series connection, 51b.
When this circuit board 3 is placed on this base 11, can constitute conplane principle to be positioned at this base 11 lip-deep three detecting unit 21a, 21b and 21c, detect the flatness of this circuit board 3.When these three detecting unit 21a, 21b and 21c detect circuit board simultaneously, represent that promptly this circuit board 3 is positioned at smooth position, and this gauge tap 51a, when 51b is pressed simultaneously, the test needle stand 12 of this test board 1 can move down to press and contacts these circuit board 3 surfaces and carry out testing electrical property.
If one among these three detecting unit 21a, 21b and the 21c does not detect circuit board 3, represent that promptly this circuit board 3 is in the out-of-flatness state; Even at this moment push this two gauge tap 51a, 51b simultaneously, this test needle stand 12 does not produce any action yet, can judge that like this this circuit board 3 is in the out-of-flatness state, must adopt alternate manner to do testing electrical property or adjust this circuit board position.So, can avoid when this circuit board 3 is in the out-of-flatness state, doing testing electrical property, avoid these circuit board 3 tested needle stands 12 to damage by pressure, maybe should damage by test needle stand 12.Can prevent from when circuit board 3 is in the out-of-flatness state and does testing electrical property, can't put fully and touch the testing electrical property result that check point makes the mistake.
In the time of one among relieving these two gauge tap 51a, 51b, this test needle stand 12 moves up, and can after finishing test this circuit board 3 be taken out.
Two gauge tap 51a, 51b of this control circuit provide a kind of security mechanism, when these three detecting unit 21a, 21b and 21c contact with circuit board 3 fully, represent that promptly this circuit board 3 is in formation state, do not pushed conducting simultaneously for one in these two gauge tap 51a, 51b by the operator both hands, then should test needle stand 12 no pressing actions, test needle stand 12 accidents that are pressed down in the time of can avoiding the operator both hands not withdraw from test needle stand 12 operation areas like this weigh wounded.
In sum, the utility model compared with prior art, in this testboard susceptor surface extremely Be provided with less three such as the detecting unit of limit switch, this detecting unit is with at same plane and do not exist Collinear mode is arranged, and consists of conplane principle testing circuit plate flatness by 3, The utility model can be avoided existing artificial judgment flatness very easily to cause damaging circuit board by pressure or cause The shortcoming that test needle stand damages avoids the situation of testing electrical property mistake to produce, and simple in structure And easy to implement.
Claims (8)
1. the flatness testing agency of a circuit board test platform carries out the flatness detection to the circuit board that is placed on this test board, it is characterized in that the flatness testing agency of this circuit board test platform comprises at least:
Three detecting units are located on this test board same plane and not in collinear position.
2. the flatness testing agency of circuit board test platform as claimed in claim 1, it is characterized in that, this test board is made up of a base and the test needle stand that is positioned on this base, these three detecting units are located at this susceptor surface, these three detecting units are controlled this test needle stand and are pressed down, and make this test needle stand press to touch at this circuit board surface and carry out testing electrical property.
3. the flatness testing agency of circuit board test platform as claimed in claim 2 is characterized in that, this test needle stand is controlled it by a control circuit and moved up and down.
4. the flatness testing agency of circuit board test platform as claimed in claim 3 is characterized in that, this control circuit electrically connects this detecting unit.
5. the flatness testing agency of circuit board test platform as claimed in claim 4 is characterized in that, these three detecting units are series connection, and electrically connect this control circuit.
6. the flatness testing agency of circuit board test platform as claimed in claim 5 is characterized in that, this control circuit also comprises at least two gauge tap.
7. the flatness testing agency of circuit board test platform as claimed in claim 6 is characterized in that, one in these three detecting units does not contact with circuit board, and the conducting that is not pressed of these two gauge tap promptly should the not action of test needle stand.
8. the flatness testing agency of circuit board test platform as claimed in claim 1 is characterized in that, this detecting unit is a limit switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520146676 CN2857033Y (en) | 2005-12-20 | 2005-12-20 | Smoothness detection gear of circuit board test floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520146676 CN2857033Y (en) | 2005-12-20 | 2005-12-20 | Smoothness detection gear of circuit board test floor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2857033Y true CN2857033Y (en) | 2007-01-10 |
Family
ID=37600337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520146676 Expired - Lifetime CN2857033Y (en) | 2005-12-20 | 2005-12-20 | Smoothness detection gear of circuit board test floor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2857033Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104677269A (en) * | 2013-11-26 | 2015-06-03 | 英业达科技有限公司 | System and method for optical detection of foot stand of central processing unit |
| CN108759728A (en) * | 2018-05-29 | 2018-11-06 | 无锡远及科技有限公司 | PCB circuit board flatness detection light irradiating and detecting system and its detection method |
-
2005
- 2005-12-20 CN CN 200520146676 patent/CN2857033Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104677269A (en) * | 2013-11-26 | 2015-06-03 | 英业达科技有限公司 | System and method for optical detection of foot stand of central processing unit |
| CN108759728A (en) * | 2018-05-29 | 2018-11-06 | 无锡远及科技有限公司 | PCB circuit board flatness detection light irradiating and detecting system and its detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070110 |
|
| EXPY | Termination of patent right or utility model |