CN2814880Y - Adaptive light source illuminating system for pastering machine - Google Patents
Adaptive light source illuminating system for pastering machine Download PDFInfo
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- CN2814880Y CN2814880Y CN 200520062332 CN200520062332U CN2814880Y CN 2814880 Y CN2814880 Y CN 2814880Y CN 200520062332 CN200520062332 CN 200520062332 CN 200520062332 U CN200520062332 U CN 200520062332U CN 2814880 Y CN2814880 Y CN 2814880Y
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Abstract
The utility model provides an automatic adaptive light source illuminating system for a sheet pasting machine, which comprises a light source controller, a light sensor matrix and an intelligent assembling light source, wherein the light sensor matrix is arranged on a pasting head of the sheet pasting machine and is positioned in front of a sucking nozzle, the light source controller is arranged in a machine box of the sheet pasting machine and comprises a sensor control module and a brightness controlling module of a light source which are mutually connected, and the intelligent assembling light source is arranged on a base platform of the sheet pasting machine. The intelligent assembling light source comprises a control module of an edge light air valve, an assembling light source and a control module of an annular light angle stepping motor which are connected. The sensor control module is respectively connected with the light sensor matrix, the control module of an edge light air valve and the control module of an annular light angle stepping motor. The sensor control module is also connected with an upper position machine by a CAN bus, and the brightness controlling module of a light source is connected with the assembling light source. The utility model can realize the on-line adjustment of a light source assembling condition and the brightness value of the light source, increase production efficiency and reduce the adjusting time of the light source in actual production. The utility model has the advantages of high scientific performance and high imaging quality.
Description
Technical field
The utility model relates to the light source illuminating apparatus of chip mounter vision system, specifically is meant a kind of chip mounter self-adaptive light-source illuminating system.
Background technology
In the control system of chip mounting machine, need carry out vision-based detection to the chip that picks up, so as to being corrected in the uncontrollable deviation that takes place in the chip pick-up process.General, control system of chip mounting machine demand for this reason disposes vision collecting and treatment system, is called for short vision system.Vision system can be divided into the two large divisions: light-source illuminating system and image collection processing system.Light-source illuminating system is responsible for providing suitable lighting condition to form the image of suitable quality to object to be detected, and image collection processing system then is responsible for gathering and handling the image of object to be detected.
The components and parts packing forms of the confidential processing of multifunctional patch is various, and CHIP, SOP, SOIC, QFP, BGA, CSP, PLCC etc. are arranged.Difference in appearance is very big between these packing forms, and having is cubical CHIP type basically, and the QFP type of band indent pin is arranged, and the BGA type of dribbling shape projection is also arranged.Just encapsulation of the same race at last also has very big-difference on chip sectional area size, span from 0.254ms * 0.58ms to 50ms * 50ms.
The difference of various components and parts on profile and size has proposed higher requirement to the light illumination technology.At the shooting lighting field, through groping for many years, people sum up a series of experimental principles, carry out appropriate illumination with the object to different resemblances and make it blur-free imaging.These principle of experience are applied in a flexible way in the chip mounter illuminator, and appropriate illumination makes it blur-free imaging to the components and parts of various profiles can to use corresponding lighting source combination under laboratory environment.But the situation under the actual industrial production environment is more complicated than the situation under the laboratory environment, and some methods feasible under laboratory environment are poor efficiency or even unallowed when industrial production, and its problem that need solve is:
At first, because the employed lighting source combination of the components and parts of different profiles has the difference on type and the parameter, and present commercially available lighting source mostly is fixed form (referring to irradiating angle, light composite type etc.) or manually part is adjustable, therefore need carry out the manual of combination of light sources in the type of device conversion and recombinate.This is no problem fully under laboratory environment, and when industrial production is and poor efficiency.The nearly components and parts of tens kinds of encapsulation are often arranged, if the manual reorganization of carrying out light source of will stopping will reduce operating efficiency greatly on the circuit board after having mounted a kind of encapsulation.
Secondly, because all there are variable factor in components and parts and environment for use in the actual industrial production, and present light source is can't be self-reacting to these variable factors.In the actual production, material, color and the fineness of institute's subsides components and parts all can be with to do when experiment different, and the difference of image processing algorithm also can to image require different.If do not consider relevant situation (most softwares are all variable situations all can't be considered) in the image processing software, when these conversion take place, will the situation of software erroneous judgement appear.To have to stop when serious produce, and need again coding and debugging, this will reduce production efficiency greatly.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art with not enough, and a kind of reliability height, combination is flexible, widely applicable, production efficiency is high chip mounter self-adaptive light-source illuminating system are provided.
The purpose of this utility model realizes by following proposal: this chip mounter self-adaptive light-source illuminating system comprises light source controller, photosensor matrix, the intelligence combined light source, described photosensor matrix is installed on the chip mounter mounting head, be positioned at suction nozzle the place ahead, described light source controller is installed on the chip mounter cabinet inside, it comprises the transducer control module, the light-source brightness control module interconnects composition, described intelligent combined light source is installed on the chip mounter base platform, it comprises marginal ray Air Valve Control module, combined light source, the ring light angle step motor control module composition that is connected, described transducer control module and photosensor matrix, marginal ray Air Valve Control module, ring light angle step motor control module connects respectively, it also is connected with host computer by the CAN bus, and described light-source brightness control module is connected with combined light source.
For implementing the utility model better, described transducer control module comprises that CPU module, A/D modular converter interconnect composition, described CPU module is provided with marginal ray Air Valve Control module interface, ring light angle step motor control module interface, host computer interface, and described A/D modular converter is connected with optical sensor; Described light-source brightness control module comprises light source controller.
Described marginal ray Air Valve Control module comprises air valve; Described ring light angle step motor control module comprises that control interface circuit, single-chip microcomputer, motor pulses distributor, step motor drive power amplification circuit connect to form successively; Described combined light source and the ccd sensor of chip mounter coaxial over against, it comprises marginal ray light source, low angle diffused light light source, ring light light source, described marginal ray light source is connected with marginal ray Air Valve Control module by thimble, described ring light light source is connected with ring light angle step motor control module by screw rod, described marginal ray light source, ring light light source, the from inside to outside coaxial setting of low angle diffused light light source.
Described photosensor matrix comprises transducer, carrier is installed, described installation carrier is two cubes that stack, its simulation be the outward appearance situation of components and parts, optical sensor is installed in the installation carrier surface, decide according to the size of handled components and parts the number of optical sensor and concrete installation site, the installing and locating of optical sensor can installed a plurality of grids of division on the carrier for convenience, and the number of grid is determined according to the size of components and parts and transducer.
The self adaptation illumination work step of above-mentioned chip mounter self-adaptive light-source illuminating system comprises:
(1) according to expertise system is debugged, determine the illumination initial parameter index of various packaged chips, in host computer, set up expert system.
(2) the preliminary setting, when components and parts classification that each production mounted changes, described light source controller reads the illumination initial parameter index of such standard packaging components and parts from host computer, described transducer control module is according to described illumination initial parameter index, lifting by marginal ray Air Valve Control module controls marginal ray, irradiating angle by ring light angle step motor control module controls ring light is provided with the brightness of each light source of combined light source by described light-source brightness control module;
(3) mount in the components and parts process, when the material of each components and parts, color and fineness generation conversion, system adjusts Increment Matrix R according to the online definite light source of the feedback of recognition result, described transducer control module is again according to the value of R, lifting by marginal ray Air Valve Control module controls marginal ray, irradiating angle by ring light angle step motor control module controls ring light is provided with the brightness of each light source of combined light source by described light-source brightness control module;
(4) mount in the components and parts process, system adjusts illumination solution according to the input value variation of photosensor matrix and the difference of picture quality, when recognition result is relatively poor, respectively overlap the comparison of illumination scheme by described expert system to the satisfaction degree of image index, change the appropriate illumination scheme adaptively, combination of light sources situation, light-source brightness value are adjusted.
The above-mentioned step of setting up expert system comprises:
(1) holds components and parts by suction nozzle, then according to the combination and the light-source brightness of the described intelligent combined light source of experience adjustments of illumination imaging;
(2) with described photosensor matrix and components and parts together through light area and imaging, adjust described intelligence combination combination of light sources and light-source brightness according to picture quality;
(3) behind the blur-free imaging,, and deposit in the host computer, set up expert system the input value of combined situation, light-source brightness value and the photosensor matrix of described intelligent combined light source illumination initial parameter index as such standard packaging components and parts.
Described expert system is a database, it comprises to the image index of the image of all kinds of standard packaging components and parts definition and according to expert's experience, the above illumination scheme of a cover that all kinds of standard packaging components and parts are set up respectively, it comprises fringe region, central area, pin and background contrasts, contour edge definition described image index, and described illumination scheme comprises the way of combination of light sources situation, light-source brightness value being adjusted according to the image index of all kinds of standard packaging components and parts.
Described combination of light sources situation comprises the ring light irradiating angle, whether uses the marginal ray light source, whether uses low angle scattered light light source.
The utility model has advantage and effect under following with respect to prior art:
(1) the utility model obtains all kinds of components and parts illumination initial data in the debug phase, and deposits in the host computer, sets up expert system, the experience of prior art debugging relatively, and science is higher, and image quality is better;
(2) the adaptive interference that brings according to the variation of each components and parts material, color and fineness of the utility model energy, online adjustment combination of light sources situation, light-source brightness value are enhanced productivity, the adjustment time of light source when significantly reducing actual production;
(3) the utility model can be according to the input value variation of photosensor matrix and the difference of picture quality, choose the appropriate illumination scheme adaptively by described expert system, online adjustment combination of light sources situation, light-source brightness value make the components and parts of different encapsulation obtain best picture quality.
Description of drawings
Fig. 1 is the installation site schematic diagram of the utility model chip mounter self-adaptive light-source illuminating system in chip mounter;
Fig. 2 is the block diagram of the utility model chip mounter self-adaptive light-source illuminating system;
Fig. 3 is the block diagram of transducer control module shown in Figure 2;
Fig. 4 is the block diagram of ring light angle step motor control module shown in Figure 2;
Fig. 5 is the structural representation of combined light source shown in Figure 2;
Fig. 6 is the structural representation of the installation carrier of photosensor matrix shown in Figure 2.
Embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but of the present utility model
Execution mode is not limited thereto.
Embodiment
As shown in Figure 1, photosensor matrix 100 in the utility model chip mounter self-adaptive light-source illuminating system is installed on the chip mounter mounting head, be positioned at suction nozzle the place ahead, intelligent combined light source 200 is installed on the chip mounter base platform, and light source controller 300 is installed in the cabinet inside of chip mounter.
As shown in Figure 2, this chip mounter self-adaptive light-source illuminating system comprises light source controller, photosensor matrix, the intelligence combined light source, light source controller comprises the transducer control module, the light-source brightness control module interconnects composition, intelligence combination light source package is drawn together marginal ray Air Valve Control module, combined light source, the ring light angle step motor control module composition that is connected, transducer control module and photosensor matrix, marginal ray Air Valve Control module, ring light angle step motor control module connects respectively, it also is connected with host computer by the CAN bus, and the light-source brightness control module is connected with combined light source.
As shown in Figure 3, the transducer control module comprises that CPU module, A/D modular converter interconnect composition, the CPU module is provided with marginal ray Air Valve Control module interface, ring light angle step motor control module interface, host computer interface, and the A/D modular converter is connected with optical sensor; The light-source brightness control module adopts the pd-3120-4 type light source controller of Japanese CCS company.
Marginal ray Air Valve Control module adopts A040-4E1-56E type air valve to carry out single-point control; As shown in Figure 4, ring light angle step motor control module comprises that control interface circuit, single-chip microcomputer, motor pulses distributor, step motor drive power amplification circuit connect to form successively; As shown in Figure 5, the ccd sensor 6 of combined light source and chip mounter coaxial over against, it comprises ring light light source 1, marginal ray light source 2, low angle diffused light light source 3, marginal ray light source 2 is connected with marginal ray Air Valve Control module by thimble 5, ring light light source 1 is connected with ring light angle step motor control module by screw rod 4, ring light light source 1, marginal ray light source 2, the 3 from inside to outside coaxial settings of low angle diffused light light source, combined light source adopt the Japanese CCS LDR32 of company light source, LDR70A N light source modified type, LDL74*27 light source, FPQ-120 combination of light sources to form.
As shown in Figure 6, photosensor matrix adopts LX1970 type brightness transducer, carrier 7 is installed, it is two cubes that stack that carrier 7 is installed, its simulation be the outward appearance situation of components and parts, optical sensor is installed in the installation carrier surface, decide according to the size of handled components and parts the number of optical sensor and concrete installation site, installing and locating for convenience of optical sensor, can a plurality of grids 8 of division on the carrier be installed, the number of grid 8 is determined according to the size of components and parts and transducer.
The job step of the self adaptation illumination of the utility model chip mounter self-adaptive light-source illuminating system is:
(1) according to expertise system is debugged, determine the illumination initial parameter index of all kinds of standard packaging components and parts, in host computer, set up expert system.
Expert system is a database, it comprises to the image index of the image of all kinds of standard packaging components and parts definition and according to expert's experience, the above illumination scheme of a cover that all kinds of standard packaging components and parts are set up respectively, it comprises fringe region, central area, pin and background contrasts, contour edge definition image index, and illumination scheme comprises the way of combination of light sources situation, light-source brightness value being adjusted according to the image index of all kinds of standard packaging components and parts.
The combined situation of light source comprises the ring light irradiating angle, whether uses the marginal ray light source, whether uses low angle scattered light light source.
(2) the preliminary setting, when components and parts classification that each production mounted changes, described light source controller reads the illumination initial parameter index of such standard packaging components and parts from host computer, described transducer control module is according to described illumination initial parameter index, lifting by marginal ray Air Valve Control module controls marginal ray, irradiating angle by ring light angle step motor control module controls ring light is provided with the brightness of each light source of combined light source by described light-source brightness control module;
(3) mount in the components and parts process, when the material of each components and parts, color and fineness generation conversion, system is according to the feedback of recognition result, online definite light source is adjusted Increment Matrix R, described transducer control module is again according to the value of R, by the lifting of marginal ray Air Valve Control module controls marginal ray, the irradiating angle by ring light angle step motor control module controls ring light is provided with the brightness of each light source of combined light source by described light-source brightness control module;
(4) mount in the components and parts process, system adjusts illumination solution according to the input value variation of photosensor matrix and the difference of picture quality, when recognition result is relatively poor, respectively overlap the comparison of illumination scheme by described expert system to the satisfaction degree of image index, change the appropriate illumination scheme adaptively, combination of light sources situation, light-source brightness value are adjusted.
The above-mentioned job step of setting up expert system is:
(1) holds components and parts by suction nozzle, then according to the combination and the light-source brightness of the experience adjustments intelligence combined light source of illumination imaging;
(2) with photosensor matrix and components and parts together through light area and imaging, adjust intelligence combination combination of light sources and light-source brightness according to picture quality;
(3) behind the blur-free imaging,, and deposit in the host computer, set up expert system the input value of combined situation, light-source brightness value and the photosensor matrix of intelligent combined light source illumination initial parameter index as such standard packaging components and parts.
As mentioned above, just can realize the utility model preferably.
Claims (4)
1, a kind of chip mounter self-adaptive light-source illuminating system, it is characterized in that: comprise light source controller, photosensor matrix, the intelligence combined light source, described photosensor matrix is installed on the chip mounter mounting head, be positioned at suction nozzle the place ahead, described light source controller is installed on the chip mounter cabinet inside, it comprises the transducer control module, the light-source brightness control module interconnects composition, described intelligent combined light source is installed on the chip mounter base platform, it comprises marginal ray Air Valve Control module, combined light source, the ring light angle step motor control module composition that is connected, described transducer control module and photosensor matrix, marginal ray Air Valve Control module, ring light angle step motor control module connects respectively, it also is connected with host computer by the CAN bus, and described light-source brightness control module is connected with combined light source.
2, by the described a kind of chip mounter self-adaptive light-source illuminating system of claim 1, it is characterized in that: described transducer control module comprises that CPU module, A/D modular converter interconnect composition, described CPU module is provided with marginal ray Air Valve Control module interface, ring light angle step motor control module interface, host computer interface, and described A/D modular converter is connected with optical sensor; Described light-source brightness control module comprises light source controller.
3, by the described a kind of chip mounter self-adaptive light-source illuminating system of claim 1, it is characterized in that: described marginal ray Air Valve Control module comprises air valve; Described ring light angle step motor control module comprises that control interface circuit, single-chip microcomputer, motor pulses distributor, step motor drive power amplification circuit connect to form successively; Described combined light source and the ccd sensor of chip mounter coaxial over against, it comprises marginal ray light source, low angle diffused light light source, ring light light source, described marginal ray light source is connected with marginal ray Air Valve Control module by thimble, described ring light light source is connected with ring light angle step motor control module by screw rod, described marginal ray light source, ring light light source, the from inside to outside coaxial setting of low angle diffused light light source.
4, by the described a kind of chip mounter self-adaptive light-source illuminating system of claim 1, it is characterized in that: described photosensor matrix comprises transducer, carrier is installed, described installation carrier is two cubes that stack, and optical sensor is installed in the installation carrier surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520062332 CN2814880Y (en) | 2005-08-05 | 2005-08-05 | Adaptive light source illuminating system for pastering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520062332 CN2814880Y (en) | 2005-08-05 | 2005-08-05 | Adaptive light source illuminating system for pastering machine |
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| CN2814880Y true CN2814880Y (en) | 2006-09-06 |
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| CN 200520062332 Expired - Lifetime CN2814880Y (en) | 2005-08-05 | 2005-08-05 | Adaptive light source illuminating system for pastering machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100435611C (en) * | 2005-08-05 | 2008-11-19 | 华南理工大学 | Self-adaptive light-source illuminating system and method for paster |
| CN104411110A (en) * | 2014-12-12 | 2015-03-11 | 深圳市效时实业有限公司 | Patch positioning method and system |
-
2005
- 2005-08-05 CN CN 200520062332 patent/CN2814880Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100435611C (en) * | 2005-08-05 | 2008-11-19 | 华南理工大学 | Self-adaptive light-source illuminating system and method for paster |
| CN104411110A (en) * | 2014-12-12 | 2015-03-11 | 深圳市效时实业有限公司 | Patch positioning method and system |
| CN104411110B (en) * | 2014-12-12 | 2017-09-19 | 深圳市效时实业有限公司 | A kind of paster localization method and system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150805 Granted publication date: 20060906 |
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| EXPY | Termination of patent right or utility model |