CN104655659A - X-ray detection system for PCB production - Google Patents
X-ray detection system for PCB production Download PDFInfo
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- CN104655659A CN104655659A CN201310596213.0A CN201310596213A CN104655659A CN 104655659 A CN104655659 A CN 104655659A CN 201310596213 A CN201310596213 A CN 201310596213A CN 104655659 A CN104655659 A CN 104655659A
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Abstract
The invention discloses an X-ray detection system for PCB production. The system includes an X-ray detection module, a CCD camera, an image preprocessing module and a main controller, the X-ray detection module includes an X-ray emitter, a collimating mirror, a light filter, a four dimensional object movement table and an image intensifier which are sequentially arranged in an X-ray transmission light path, the CCD camera is arranged at the output window of the image intensifier and is connected with the input end of the main controller through the image preprocessing module, and the output end of the main controller is connected with an LED display module, an alarm unit and a control panel. The X-ray detection system has the advantages of simple structure and reasonable design; and the light path of the X-ray emitter is optimized, and the tail end of the image intensifier is provided with the image preprocessing module to make imaging information stable and reliable in order to ensure the accuracy and the effectiveness of detection results, so the production efficiency and the production quality of the PCB are improved, the practicability is strong, and the popularization value is high.
Description
Technical field
The present invention relates to a kind of x-ray detection system, especially relate to a kind of pcb board production x-ray detection system.
Background technology
Along with the develop rapidly of electronic science and technology, continuing to bring out of the miniaturization of encapsulation and the densification of assembling and various novel encapsulated technology, the quality testing of effects on surface mounting technology (SMT) completed knocked down products proposes strict requirement.The detection technique such as traditional Manual Visual Inspection, automatic optics inspection (AOI), laser detection, on-line testing (ICT) cannot meet the demands.
Automatic X ray detection technique (AXI) is utilized to become the main method of dealing with problems.But not processing especially for imaging moiety in existing X ray detection technique; pcb board on just simple X ray power valve direct irradiation objective table; then imaging on image amplifier; whole process easily disturb by the labile factor of the light of X ray power valve; the signal of imaging on image amplifier simultaneously also often can produce instability, fuzzy phenomenon.
Summary of the invention
Technical matters to be solved by this invention is for above-mentioned deficiency of the prior art, a kind of pcb board production x-ray detection system is provided, its structure is simple, reasonable in design, by carrying out light path optimal design in the light path of X-ray emitter, increase image pre-processing module at the end of image amplifier makes image-forming information more reliable and stable simultaneously, also more clear, ensure that the precisely effective of testing result, thus improve production efficiency and the quality of production of pcb board, and practical, result of use is good, and promotional value is high.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of pcb board production x-ray detection system, it is characterized in that: comprise X-ray detection module, CCD camera, image information for CCD camera being gathered is amplified, strengthen process image pre-processing module and for process gathered image information and to X-ray detection module, CCD camera and four-dimensional loading sports platform carry out the master controller controlled, described X-ray detection module is included in the X-ray emitter that the transmission light path of X ray sets gradually, for limiting the collimating mirror of X ray light path scope, for the optical filter of filtering light impurity, for placing the four-dimensional loading sports platform of pcb board and the image amplifier for receiving and strengthen image, described CCD camera is arranged on the output window place of image amplifier, described CCD camera is connected with the input end of image pre-processing module by data line, described image pre-processing module comprises the prime amplifier that the image information that gathers CCD camera processes successively, A/D converter, video memory and image processor, the output terminal of described image pre-processing module connects with the input end of master controller, the input end of described master controller is also connected to the data-carrier store for storing testing result information, for the power module of powering for each unit and when system jam the EmS of shutdown system, the output terminal of described master controller is connected to the LED display module for showing testing result, when an error occurs for carrying out the alarm unit of reporting to the police and for controlling X-ray emitter, the control desk of CCD camera and the work of four-dimensional loading sports platform, described X-ray emitter, CCD camera and four-dimensional loading sports platform all connect with the output terminal of control desk, described LED display module is connected with the output terminal of master controller by driver module, described master controller is connected with Surveillance center by RS485 bus.
Above-mentioned a kind of pcb board production x-ray detection system, is characterized in that: described master controller is STC89C52 single-chip microcomputer.
Above-mentioned a kind of pcb board production x-ray detection system, is characterized in that: described alarm unit is audible-visual annunciator.
The present invention compared with prior art has the following advantages:
1, structure of the present invention is simple, reasonable in design, easy for installation.
2, the present invention carries out X ray detection to pcb board, effectively can detect solder joint, pcb board internal layer and device inside line on SMT, thus improves production efficiency and the quality of production of pcb board.
3, the present invention can improve the quality of X ray by the collimating apparatus that arranges in X-ray detection module and optical filter, thus makes the imaging of image amplifier more stable.
4, the present invention carries out pre-service by image pre-processing module to gathered picture signal, further increases the quality of image, thus ensure that the precisely effective of testing result.
5, the present invention is simple to operation, and practical, and result of use is good, and promotional value is high.
In sum, structure of the present invention is simple, reasonable in design, by carrying out light path optimal design in the light path of X-ray emitter, increasing image pre-processing module at the end of image amplifier simultaneously and making image-forming information more reliable and stable, also more clear, make the precisely effective of testing result, thus improve production efficiency and the quality of production of pcb board, and practical, result of use is good, and promotional value is high.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is X-ray detection module theory diagram of the present invention.
Fig. 2 is control module theory diagram of the present invention.
Description of reference numerals:
1-master controller; 2-CCD camera; 3-image pre-processing module;
3-1-prime amplifier; 3-2-A/D converter; 3-3-video memory;
3-4-image processor; 4-LED display module; 5-control desk;
6-Surveillance center; 7-alarm unit; 8-data-carrier store;
9-power module; 10-EmS; 11-driver module;
12-RS485 bus; 13-X-ray emitter; 14-collimating apparatus;
15-optical filter; 16-four-dimensional loading sports platform; 17-image amplifier;
18-pcb board.
Embodiment
As Fig. 1, shown in Fig. 2, the present invention includes X-ray detection module, CCD camera 2, image information for CCD camera 2 being gathered is amplified, strengthen process image pre-processing module 3 and for process gathered image information and to X-ray detection module, CCD camera 2 and four-dimensional loading sports platform carry out the master controller 1 controlled, described X-ray detection module is included in the X-ray emitter 13 that the transmission light path of X ray sets gradually, for limiting the collimating mirror 14 of X ray light path scope, for the optical filter 15 of filtering light impurity, for placing the four-dimensional loading sports platform 16 of pcb board 18 and the image amplifier 17 for receiving and strengthen image, described CCD camera 2 is arranged on the output window place of image amplifier 17, described CCD camera 2 is connected by the input end of data line with image pre-processing module 3, described image pre-processing module 3 comprises the prime amplifier 3-1 that the image information that gathers CCD camera 2 processes successively, A/D converter 3-2, video memory 3-3 and image processor 3-4, the output terminal of described image pre-processing module 3 connects with the input end of master controller 1, the input end of described master controller 1 is also connected to the data-carrier store 8 for storing testing result information, for the power module 9 of powering for each unit and when system jam the EmS 10 of shutdown system, the output terminal of described master controller 1 is connected to the LED display module 4 for showing testing result, when an error occurs for carrying out the alarm unit 7 of reporting to the police and for controlling X-ray emitter 13, the control desk 5 of CCD camera 2 and the work of four-dimensional loading sports platform 16, described X-ray emitter 13, CCD camera 2 and four-dimensional loading sports platform 16 all connect with the output terminal of control desk 5, described LED display module 4 is connected by the output terminal of driver module 11 with master controller 1, described master controller 1 is connected with Surveillance center 6 by RS485 bus 12.
In the present embodiment, described master controller 1 is STC89C52 single-chip microcomputer.Described alarm unit 7 is audible-visual annunciator.
Principle of work of the present invention is: start up system, the X ray that X-ray emitter 13 sends impinges upon on the pcb board 18 of placement on four-dimensional loading sports platform 16 through collimating mirror 14 and optical filter 15, the X-ray image figure of pcb board 18 is gathered by CCD camera 2 after image amplifier 17 processes, gathered image information is passed to master controller 1 by CCD camera 2 after image pre-processing module 3 processes, master controller 1 is stored in data-carrier store 8 after gathered image information is carried out analyzing and processing, demonstrate testing result by LED display module 4 simultaneously, master controller 1 controls X-ray emitter 13 by control desk 5, the work of four-dimensional loading sports platform 16 and CCD camera 2, thus the accurate detection met pcb board, when system jam, control alarm unit 7 by master controller 1 and carry out alarm, close whole system by operator by EmS 10 simultaneously, the course of work of whole system is uploaded to Surveillance center 6 by RS485 bus 12 by master controller 1, and send control command to master controller 1 by Surveillance center 6 by RS485 bus 12, whole testing process simple and quick, testing result is precisely effective, thus improve production efficiency and the quality of production of pcb board.
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every above embodiment is done according to the technology of the present invention essence any simple modification, change and equivalent structure change, all still belong in the protection domain of technical solution of the present invention.
Claims (3)
1. a pcb board production x-ray detection system, it is characterized in that: comprise X-ray detection module, CCD camera (2), image information for CCD camera (2) being gathered is amplified, strengthen process image pre-processing module (3) and for process gathered image information and to X-ray detection module, CCD camera (2) and four-dimensional loading sports platform carry out the master controller (1) controlled, described X-ray detection module is included in the X-ray emitter (13) that the transmission light path of X ray sets gradually, for limiting the collimating mirror (14) of X ray light path scope, for the optical filter (15) of filtering light impurity, for placing the four-dimensional loading sports platform (16) of pcb board (18) and the image amplifier (17) for receiving and strengthen image, described CCD camera (2) is arranged on the output window place of image amplifier (17), described CCD camera (2) is connected by the input end of data line with image pre-processing module (3), described image pre-processing module (3) comprises the prime amplifier (3-1) that the image information that gathers CCD camera (2) processes successively, A/D converter (3-2), video memory (3-3) and image processor (3-4), the output terminal of described image pre-processing module (3) connects with the input end of master controller (1), the input end of described master controller (1) is also connected to the data-carrier store (8) for storing testing result information, for the power module (9) of powering for each unit and when system jam the EmS (10) of shutdown system, the output terminal of described master controller (1) is connected to the LED display module (4) for showing testing result, when an error occurs for carrying out the alarm unit (7) of reporting to the police and for controlling X-ray emitter (13), the control desk (5) that CCD camera (2) and four-dimensional loading sports platform (16) work, described X-ray emitter (13), CCD camera (2) and four-dimensional loading sports platform (16) all connect with the output terminal of control desk (5), described LED display module (4) is connected by the output terminal of driver module (11) with master controller (1), described master controller (1) is connected with Surveillance center (6) by RS485 bus (12).
2. according to a kind of pcb board production x-ray detection system according to claim 1, it is characterized in that: described master controller (1) is STC89C52 single-chip microcomputer.
3., according to a kind of pcb board production x-ray detection system described in claim 1 or 2, it is characterized in that: described alarm unit (7) is audible-visual annunciator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310596213.0A CN104655659A (en) | 2013-11-21 | 2013-11-21 | X-ray detection system for PCB production |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310596213.0A CN104655659A (en) | 2013-11-21 | 2013-11-21 | X-ray detection system for PCB production |
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| CN104655659A true CN104655659A (en) | 2015-05-27 |
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| CN201310596213.0A Pending CN104655659A (en) | 2013-11-21 | 2013-11-21 | X-ray detection system for PCB production |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104933385A (en) * | 2015-05-29 | 2015-09-23 | 苏州合欣美电子科技有限公司 | SMT transmission equipment monitoring system based on photoelectric sensors |
| CN104960868A (en) * | 2015-05-29 | 2015-10-07 | 苏州合欣美电子科技有限公司 | SMT transmission equipment fault detection method |
| CN109775333A (en) * | 2018-04-08 | 2019-05-21 | 昆山木利机械设计有限公司 | A kind of printing and detection device applied to pcb board |
| CN110108733A (en) * | 2019-06-11 | 2019-08-09 | 丹东奥龙射线仪器集团有限公司 | The big flux on-line intelligence Real-time Imaging device of casting high speed |
| CN111367744A (en) * | 2020-03-08 | 2020-07-03 | 苏州浪潮智能科技有限公司 | Printed circuit board assembly testing method and device |
-
2013
- 2013-11-21 CN CN201310596213.0A patent/CN104655659A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104933385A (en) * | 2015-05-29 | 2015-09-23 | 苏州合欣美电子科技有限公司 | SMT transmission equipment monitoring system based on photoelectric sensors |
| CN104960868A (en) * | 2015-05-29 | 2015-10-07 | 苏州合欣美电子科技有限公司 | SMT transmission equipment fault detection method |
| CN109775333A (en) * | 2018-04-08 | 2019-05-21 | 昆山木利机械设计有限公司 | A kind of printing and detection device applied to pcb board |
| CN110108733A (en) * | 2019-06-11 | 2019-08-09 | 丹东奥龙射线仪器集团有限公司 | The big flux on-line intelligence Real-time Imaging device of casting high speed |
| CN110108733B (en) * | 2019-06-11 | 2023-11-07 | 丹东奥龙射线仪器集团有限公司 | Casting high-speed large-flux online intelligent real-time imaging detection device |
| CN111367744A (en) * | 2020-03-08 | 2020-07-03 | 苏州浪潮智能科技有限公司 | Printed circuit board assembly testing method and device |
| CN111367744B (en) * | 2020-03-08 | 2022-07-08 | 苏州浪潮智能科技有限公司 | Printed circuit board assembly testing method and device |
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