CN208921838U - Automatic Testing System of Circuit Board - Google Patents
Automatic Testing System of Circuit Board Download PDFInfo
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- CN208921838U CN208921838U CN201821667211.0U CN201821667211U CN208921838U CN 208921838 U CN208921838 U CN 208921838U CN 201821667211 U CN201821667211 U CN 201821667211U CN 208921838 U CN208921838 U CN 208921838U
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- Prior art keywords
- data acquisition
- acquisition module
- module
- electrically connected
- circuit board
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- 238000012360 testing method Methods 0.000 title claims abstract description 66
- 239000004973 liquid crystal related substance Substances 0.000 claims description 11
- 230000003321 amplification Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 101100463786 Zea mays PG14 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Abstract
The utility model relates to circuit test fields, a kind of Automatic Testing System of Circuit Board are disclosed, to improve testing efficiency.The utility model includes scanner, PC computer, data acquisition module, display module, frock clamp and power supply module, the scanner is electrically connected with the PC computer, the PC computer is electrically connected with the data acquisition module, the data acquisition module is electrically connected with the display module, and the power supply module is electrically connected with the data acquisition module, frock clamp respectively；The data acquisition module is also electrically connected with the frock clamp, and is pressed from both sides by the tooling and be electrically connected with the test point of the circuit board under test on the frock clamp.The utility model is suitable for circuit board testing.
Description
Technical field
The utility model relates to circuit test field, in particular to a kind of Automatic Testing System of Circuit Board.
Background technique
When at present for board production, the impedance of power supply, voltage, testing current also use manual operation avometer
Test, needs individually to test each test point, if the more test station of inconvenient for operation, test point need it is several it is personal into
Row operation, testing efficiency are extremely low.The auxiliary plates such as display are debugged using being connected with circuit main board at present, and in circuit main board
The procedure quantity set is big, is switched on slower, tests the auxiliary plates such as every piece of display and requires to wait tens seconds longer available machine times, waste is big
The time of amount, testing efficiency are low.Each test data does not save, and dates back is poor.
Utility model content
Technical problem to be solved by the utility model is: a kind of Automatic Testing System of Circuit Board is provided, to improve test
Efficiency.
To solve the above problems, the technical solution adopted in the utility model is: Automatic Testing System of Circuit Board, including scanning
Rifle, PC computer, data acquisition module, display module, frock clamp and power supply module, the scanner and PC computer electricity
Connection, the PC computer are electrically connected with the data acquisition module, and the data acquisition module is electrically connected with the display module,
The power supply module is electrically connected with the data acquisition module, frock clamp respectively；The data acquisition module also with the work
Clamps electrical connection, and pressed from both sides by the tooling and be electrically connected with the test point of the circuit board under test on the frock clamp.
Further, in order to test board power impedance, voltage and current, the data acquisition module includes
Single-chip microcontroller, impedance collection circuit, voltage collection circuit and current collection circuit, the single-chip microcontroller are electric with the impedance collection respectively
Road, voltage collection circuit and current collection circuit electrical connection.
Further, the PC computer is electrically connected by USB line with the data acquisition module.
Further, the display module includes liquid crystal display and indicator light.Liquid crystal display can to test information show comprehensively,
Indicator light can quickly show test result, such as green light expression passes through, and the bright expression of red light does not pass through.
The beneficial effects of the utility model are: the utility model can be to source impedance, the voltage and current for producing circuit board
Automatically it is tested, detection time is fast, operates without excessive commissioning staff, greatly improves scheduling and planning efficiency.This is practical new
Type cleverly selects scanner to can not only be used for bar code or two dimensional code recording device, also can be used as test initiation command, simplifies debugging
Step greatly improves scheduling and planning efficiency.The utility model is surveyed configured with the display modules such as liquid crystal display and indicator light, clear display
Test result facilitates commissioning staff to check.The each test data of the utility model can correspond and be stored in PC computer
In, the dates back of record is strong.The utility model has easy to operate, easy maintenance and maintenance cost is lower, it is big to be convenient for
Scale is promoted.
Detailed description of the invention
Fig. 1 is the structure chart of the utility model.
Fig. 2 is the utility model power supply module working principle diagram.
Fig. 3 is utility model current acquisition schematic diagram.
Fig. 4 is data acquisition module, power supply module, frock clamp, the catenation principle figure between circuit-under-test plate.
Fig. 5 is the auxiliary plate catenation principle figure such as data acquisition module and tested display.
Specific embodiment
The utility model includes scanner, PC computer, data acquisition module, display module, frock clamp and power supply mould
Block, the scanner are electrically connected with the PC computer, and the PC computer is electrically connected with the data acquisition module, and the data are adopted
Collection module is electrically connected with the display module, and the power supply module is electrically connected with the data acquisition module, frock clamp respectively；
The data acquisition module is also electrically connected with the frock clamp, and by the tooling folder with it is to be measured on the frock clamp
The test point of circuit board is electrically connected.The data acquisition module includes single-chip microcontroller, impedance collection circuit, voltage collection circuit and electricity
Acquisition Circuit is flowed, the single-chip microcontroller is electrically connected with the impedance collection circuit, voltage collection circuit and current collection circuit respectively.
When utility model works, alternating current come in after by power supply module by AC conversion be adjustable low-voltage DC,
Low-voltage DC is provided on frock clamp by band line.Then circuit board under test is put into frock clamp, shows the auxiliary plate of control
Winding displacement insertion module in；It is scanned, is recorded with bar code or two dimensional code of the scanner to circuit board under test, the aobvious auxiliary plate of control again
In PC computer, so as to test result one-to-one correspondence；The test device can get started and be detected automatically at the same time, and make
Judge whether qualification, carrying out display PASS on the liquid crystal display of display module if qualified, green light lights simultaneously, if do not conformed to
Then in the liquid crystal screen display FAIL of display module, red light lights lattice simultaneously, and this test data is passed through USB transmission
It is backed up in PC computer.After this has been detected, device can immediately close off the power supply of frock clamp, and waiting is tested next time
(to support hot plug).Utility model device has easy to operate, easy maintenance and maintenance cost is lower, advises convenient for big
Mould is promoted.
Embodiment:
When at present for board production, the impedance of power supply, voltage, testing current also use manual operation avometer
Test, needs individually to test each test point, if the more test station of inconvenient for operation, test point need it is several it is personal into
Row operation, testing efficiency are extremely low.The auxiliary plates such as display are debugged using being connected with circuit main board at present, and in circuit main board
The procedure quantity set is big, is switched on slower, tests the auxiliary plates such as every piece of display and requires to wait tens seconds longer available machine times, waste is big
The time of amount, testing efficiency are low.Each test data does not save, and dates back is poor.
In view of the above-mentioned problems, embodiment provides one kind for auxiliary to board power impedance, voltage, electric current and display etc.
Plate automatic test device.
As shown in Figure 1, utility model device is pressed from both sides by scanner, PC computer, data acquisition device, display device, tooling
Tool and AC-DC regulated power supply adapter composition.Alternating current come in after by the AC-DC regulated power supply adapter of the device by alternating current
It is converted into adjustable low-voltage DC, is provided low-voltage DC on frock clamp by band line.Then by circuit board under test
It is put into frock clamp, in the winding displacement insertion apparatus for showing the auxiliary plate of control；Again with scanner to the bar code of circuit board under test, the aobvious auxiliary plate of control
Or two dimensional code is scanned, and is recorded in PC computer, so as to test result one-to-one correspondence；The test device can be at once at the same time
Start to be detected automatically, and whether qualified judge, is shown on the liquid crystal display of display module if qualified
Green light lights PASS simultaneously, and in the liquid crystal screen display FAIL of display module, red light is lighted simultaneously if unqualified, and will
This test data passes through to be backed up in USB transmission to PC computer.After this has been detected, device can immediately close off tooling folder
The power supply of tool and auxiliary plate socket waits and tests (to support hot plug) next time.
The single-chip microcontroller of data acquisition module selects STM32F103ZE singlechip chip, and STM32F103ZE mono- shares 21
ADC interface, wherein 1 PF10 is detected for circuit, remaining 20 ADC interfaces are used for impedance, voltage detecting, and 20 are divided into 10
Group (is equivalent to and can detecte 10 road power supplys), and 20 ADC interfaces are respectively: PA0, PA1, PA2, PA3, PA4, PA5, PA6, PA7,
PB0,PB1,PC0,PC1,PC2,PC3,PC4,PC5,PF6,PF7,PF8,PF9.Pass through the I/O port control of single-chip microcontroller STM32F103ZE
Relay or analog switch processed control I/O port and are respectively as follows: PG14, PG13 to the impedance in 10 groups, voltage time sharing sampling,
PG12,PG11,PG10,PG9,PD7,PD6,PD5,PD4。
Power supply module working principle is adjustable by AC-DC as shown in Fig. 2, alternating current 100-240Vac alternating current input first
Power supply adaptor converts the low-voltage DC VCCIN of 5Vdc-24Vdc, and single-chip microcontroller controls MOS by PG3 (I/O) foot low and high level
Pipe Q14 is opened/closed, so that (PG3 low level opens power supply, PG3 to power supply VCCOUT either on or off of the control to circuit-under-test plate
High level closes power supply).
Current acquisition principle as shown in figure 3, VCCIN negative pole end first connect with the one end R36 (100m Ω), the R36 other end
It is connected with the ground (i.e. the ground of circuit-under-test plate) of frock clamp, and AD623 amplification chip is connected to by R12 in node IADC
The 3rd foot, carry out voltage amplification.By the voltage UPF10=R36*I* (1+ (100k/ of AD623 amplifying circuit amplification output
RG)) (R36 is 100m Ω, and I indicates that circuit-under-test plate supply current is the current value for flowing through R36；1+ (100k/RG) is indicated
The amplification factor of AD623；RG expression connects the resistance value between R- the and R+ bipod of AD623, here RG=1+100K/4K=
26) electric current I=UPF10/ (R36* (1+ (100k/RG))=(a/4096*3.3)/(100m Ω * 26), (a, are obtained by conversion
Indicate the readings of Chip Microcomputer A/D C (PF10) interface；4096 be the reading of Chip Microcomputer A/D C full scale, because Chip Microcomputer A/D C is 12
Position).
When display module works, single-chip microcontroller STM32F103Z controls liquid crystal TFT screen by I/O port, LED light is shown, specifically such as
Figure connection relationship.Carrying out display PASS on the liquid crystal display of display module if qualified, green light lights simultaneously, if unqualified
Then in the liquid crystal screen display FAIL of display module, red light is lighted simultaneously.
Data acquisition module, power supply module, frock clamp, the catenation principle figure between circuit-under-test plate as shown in figure 4, for
Electric module pass through band line by power supply VCCOUT and GND connect with frock clamp, data acquisition module is by T1, T2......T10
Total 10 groups of impedances, voltage detecting group are connected using band line with frock clamp.Frock clamp will include power supply VCCOUT and ground
GND amounts to 12 p-wires and is connected with the thimble of itself.And directly circuit board is pressed on frock clamp when tested, thimble can fill
The test point of tap touching circuit board.
The auxiliary plate catenation principle figure such as data acquisition module and tested display is as shown in figure 5, single-chip microcontroller STM32F103Z can be with
By I/O port, using I2C, the communication protocols such as serial ports control the auxiliary plate of display, so that auxiliary plate is debugged.
Claims (4)
1. Automatic Testing System of Circuit Board, which is characterized in that including scanner, PC computer, data acquisition module, display module,
Frock clamp and power supply module, the scanner are electrically connected with the PC computer, the PC computer and the data acquisition module
Block electrical connection, the data acquisition module are electrically connected with the display module, and the power supply module is acquired with the data respectively
Module, frock clamp electrical connection；The data acquisition module is also electrically connected with the frock clamp, and by the tooling folder with
The test point of circuit board under test on the frock clamp is electrically connected.
2. Automatic Testing System of Circuit Board as described in claim 1, which is characterized in that the data acquisition module includes monolithic
Machine, impedance collection circuit, voltage collection circuit and current collection circuit, the single-chip microcontroller respectively with the impedance collection circuit,
Voltage collection circuit and current collection circuit electrical connection.
3. Automatic Testing System of Circuit Board as described in claim 1, which is characterized in that the PC computer passes through USB line and institute
State data acquisition module electrical connection.
4. Automatic Testing System of Circuit Board as described in claim 1, which is characterized in that the display module include liquid crystal display and
Indicator light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821667211.0U CN208921838U (en) | 2018-10-15 | 2018-10-15 | Automatic Testing System of Circuit Board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821667211.0U CN208921838U (en) | 2018-10-15 | 2018-10-15 | Automatic Testing System of Circuit Board |
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| Publication Number | Publication Date |
|---|---|
| CN208921838U true CN208921838U (en) | 2019-05-31 |
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ID=66709248
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821667211.0U Active CN208921838U (en) | 2018-10-15 | 2018-10-15 | Automatic Testing System of Circuit Board |
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| CN (1) | CN208921838U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110488176A (en) * | 2019-08-02 | 2019-11-22 | 上海芯旺微电子技术有限公司 | A kind of integrated circuit testing plate and its application method |
-
2018
- 2018-10-15 CN CN201821667211.0U patent/CN208921838U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110488176A (en) * | 2019-08-02 | 2019-11-22 | 上海芯旺微电子技术有限公司 | A kind of integrated circuit testing plate and its application method |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Sichuan Changhong Xinwang Technology Co.,Ltd. Assignor: SICHUAN CHANGHONG ELECTRIC Co.,Ltd. Contract record no.: X2023980043949 Denomination of utility model: Circuit board automatic testing system Granted publication date: 20190531 License type: Common License Record date: 20231030 |