CN106680207A - Detection mechanism with side light source configured for annular light source and backlight source for AOI (Automated Optical Inspection) visual inspection - Google Patents
Detection mechanism with side light source configured for annular light source and backlight source for AOI (Automated Optical Inspection) visual inspection Download PDFInfo
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- CN106680207A CN106680207A CN201710158785.9A CN201710158785A CN106680207A CN 106680207 A CN106680207 A CN 106680207A CN 201710158785 A CN201710158785 A CN 201710158785A CN 106680207 A CN106680207 A CN 106680207A
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- ccd camera
- light source
- support
- annular light
- aoi
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
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- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention discloses a detection mechanism with a side light source configured for an annular light source and a backlight source for AOI (Automated Optical Inspection) visual inspection. The detection mechanism comprises a stand and a CCD (Charge Coupled Device) camera. The stand is provided with a support frame, wherein the top of the stand is provided with a mounting rack for fixing a product to be detected, the backlight source is arranged under the product to be detected relative to the stand, the CCD camera comprises a central view CCD camera positioned right above a detection area and a side view CCD camera positioned on the side surface of the detection area, the annular light source is fixedly installed below a camera lens of the center view CCD camera, the stand is provided with high-angle strip-shaped light sources for lighting towards the detection area respectively above the left and right sides of the support frame, and the heights of the center view CCD camera and the side view CCD camera can be adjusted up and down relative to the stand through a corresponding up-and-down sliding mechanism. The detection mechanism can solve the problem that the lighting is insufficient and uneven during AOI visual inspection.
Description
Technical field
The present invention relates to AOI field of visual inspection, more particularly to a kind of testing agency of AOI vision-based detection.
Background technology
Testing agency in existing AOI vision inspection apparatus, it is relatively single, all it is that the light source for carrying out electric filament lamp is supplemented, its
Cannot solve the problems, such as that polishing is insufficient, uneven when the detection of AOI visual appearances is carried out.And due to polishing effect it is poor, CCD phases
The photographic quality that machine (ccd image sensor) is taken is not high, then cannot be accurate in the result judgement for carrying out AOI visual appearance detections
Really.
The content of the invention
The present invention seeks to:A kind of testing agency for AOI vision-based detection is provided, polishing when can solve the problem that detection is not filled
Point, uneven problem, and due to polishing effect it is good, the photo that CCD camera is taken just more high-quality, then to Cell products
The result judgement of AOI visual appearances detection is just more accurate.
The technical scheme is that:A kind of AOI vision-based detection annular light source is with side light source and backlight testing agency, bag
Support and CCD camera are included, there is detection zone on the support, the support is provided with bracing frame, bracing frame in detection zone
Top is provided with the installing rack for fixing product to be checked, and immediately below support product relatively to be checked backlight, the CCD are provided with
Camera includes being located at the positive visual angle CCD camera and the side-looking angle CCD camera positioned at detection zone side directly over detection zone, institute
State positive visual angle CCD camera and be mounted with annular light source below its camera lens, the support in bracing frame left and right side it is upper
Side is respectively provided with the high angle strip source towards detection zone polishing, above-mentioned positive visual angle CCD camera, side-looking angle CCD camera
Up-down slide mechanism is respectively equipped between support, the positive visual angle CCD camera, side-looking angle CCD camera are by corresponding upper and lower
Slide mechanism can opposite brackets height up and down.
The concrete structure of the up-down slide mechanism is:The up-down slide mechanism includes two be installed on support puts down
Row arrangement longitudinal slide rail, be slidably matched with longitudinal slide rail respectively sliding shoe, between two longitudinal slide rails and can it is relative prop up
Longitudinal screw mandrel and the nut with longitudinal screw mandrel cooperation that frame is rotated, the lower end of the longitudinal screw mandrel has handwheel, described to face
Angle CCD camera, side-looking angle CCD camera are installed on the slide block of corresponding up-down slide mechanism respectively by sliding seat, sliding seat
It is connected with corresponding nut, when positive visual angle CCD camera and/or side-looking angle CCD camera need to adjust height, rotates on corresponding
The handwheel of lower sliding body, handwheel drives longitudinal screw mandrel to rotate, so as to drive nut and sliding seat height up and down.
The concrete structure of the positive visual angle CCD camera is:The positive visual angle CCD camera include CCD camera body, can be relative
The intermediate support of sliding seat left and right adjusting and can install with respect to the fixed mount adjusted before and after intermediate support, the CCD camera body
On fixed mount.The intermediate support is opening U-shaped support forward, and the middle part traversing section of U-shaped support has left and right to extension
The first chute, the both sides of U-shaped support have front the second rearwardly extending chute, and the intermediate support passes through the first locking piece
Lock through the first chute thereon and sliding seat, when the first locking piece is unscrewed, intermediate support is adjusted manually and is capable of achieving CCD
The left and right adjustment of camera;The intermediate support is locked by the second locking piece through the second chute and fixed mount thereon, when the
When two locking pieces are unscrewed, fixed mount is adjusted manually and is capable of achieving adjusting in front and back for CCD camera.
Preferably, the annular light source carries out high-brightness luminous using high density LED array.
The concrete structure of the installing rack is:The installing rack is to be arranged on the plate-shaped member at the top of bracing frame, its center
Position is provided with and the open slot for setting is housed and blocked for product to be checked.
The concrete mounting means of the high angle strip source is:The support sets respectively in the left and right side of detection zone
There is side stand, the side stand is provided with the support base that can down adjust height thereon relatively, and the high angle strip source is installed
On corresponding support base 0.The side stand is provided with the gathering sill of longitudinal extension, and the support base 0 passes through the 3rd locking piece
Lock with side stand through perforation thereon and gathering sill, when the 3rd locking piece is unscrewed, support base 0 is adjusted manually and is capable of achieving
The height adjustment of support base 0 and high angle strip source.
It is an advantage of the invention that:The positive visual angle CCD camera of the present invention, side-looking angle CCD camera and high angle strip source can
Altitude mixture control is carried out as needed, because annular light source is directly anchored to below positive visual angle CCD camera camera lens, therefore is faced
Before CCD camera annular light source while altitude mixture control is carried out in angle is also synchronized with the movement therewith, and positive visual angle CCD camera can be carried out
Afterwards, the fine setting of left and right, is provided with corresponding backlight immediately below product to be checked, and the present invention can solve the problem that is carrying out AOI visions
Polishing insufficient, uneven problem when outward appearance is detected, and because polishing effect is good, the photo that CCD camera is taken is just more excellent
Matter, then just more accurate to the result judgement of AOI visual appearances detection.
Description of the drawings
Below in conjunction with the accompanying drawings and embodiment the invention will be further described:
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the partial enlargement structural representation in Fig. 1;
Fig. 3 is the side structure schematic diagram of the present invention.
Wherein:1 support;
2 bracing frames;2-1 installing racks;
3 positive visual angle CCD cameras;3-1CCD camera bodies;3-2 intermediate supports;The chutes of 3-2-1 first;3-2-2 second is slided
Groove;3-3 fixed mounts;
4 side-looking angle CCD cameras;
5 up-down slide mechanisms;5-1 longitudinal slide rails;5-2 sliding shoes;5-3 longitudinal screw mandrels;5-4 handwheels;
6 annular light sources;
7 backlights;
8 side stands;8-1 gathering sills;
9 high angle strip sources;
10 support bases;
11 sliding seats;
A products to be checked.
Specific embodiment
Embodiment:As shown in Figure 1 to Figure 3, a kind of AOI vision-based detection annular light source is with side light source and backlight testing machine
Structure, including support 1 and CCD camera, have detection zone on the support 1, the support 1 is provided with bracing frame in detection zone
2, the top of bracing frame 2 is provided with the installing rack 2-1 for fixing product A to be checked, and the underface of the product A relatively to be checked of support 1 is arranged
There is backlight 7, the CCD camera includes the positive visual angle CCD camera 3 directly over detection zone and positioned at detection zone side
Side-looking angle CCD camera 4, the positive visual angle CCD camera 3 is mounted with annular light source 6, the support below its camera lens
1 is respectively provided with the high angle strip source 9 towards detection zone polishing above the left and right side of bracing frame 2, above-mentioned to face
It is respectively equipped with up-down slide mechanism 5 between angle CCD camera 3, side-looking angle CCD camera 4 and support 1, the positive visual angle CCD camera 3,
Side-looking angle CCD camera 4 can the height up and down of opposite brackets 1 by corresponding up-down slide mechanism 5.
The concrete structure of the up-down slide mechanism is:The up-down slide mechanism 5 includes two be installed on support 1
Longitudinal slide rail 5-1 that is arranged in parallel, the sliding shoe 5-2 being slidably matched with longitudinal slide rail 5-1 respectively, positioned at two longitudinal slide rails 5-1
Between and can opposite brackets 1 rotate longitudinal screw mandrel 5-3 and with longitudinal screw mandrel 5-3 coordinate nut, longitudinal screw mandrel 5-
3 lower end has handwheel 5-4, and the positive visual angle CCD camera 3, side-looking angle CCD camera 4 are installed on phase by sliding seat 11 respectively
On the slide block 5-2 of the up-down slide mechanism 5 answered, sliding seat 11 is connected with corresponding nut, positive visual angle CCD camera 3 and/or
When side-looking angle CCD camera 4 needs to adjust height, the handwheel 5-4 of corresponding up-down slide mechanism 5 is rotated, handwheel 5-4 drives longitudinal silk
Bar 5-3 is rotated, so as to drive nut and the height up and down of sliding seat 11.
The concrete structure of the positive visual angle CCD camera is:The positive visual angle CCD camera 3 include CCD camera body 3-1, can
It is described with respect to the intermediate support 3-2 and the fixed mount 3-3 that can adjust before and after relative intermediate support 3-2 of the left and right adjusting of sliding seat 4
This 3-1 of CCD camera bodies are arranged on fixed mount 3-3.The intermediate support 3-2 is opening U-shaped support forward, U-shaped support
Middle part traversing section has left and right to the first chute 3-2-1 for extending, and the both sides of U-shaped support have front the second rearwardly extending cunning
Groove 3-2-2, the intermediate support 3-2 are locked through the first chute 3-2-1 thereon by the first locking piece with sliding seat 11, when
When first locking piece is unscrewed, the left and right adjustment that intermediate support 3-2 is capable of achieving CCD camera 3 is adjusted manually;The intermediate support 3-
2 are locked by the second locking piece through the second chute 3-2-2 thereon and fixed mount 3-3, when the second locking piece is unscrewed, manually
Adjust fixed mount 3-3 and be capable of achieving adjusting in front and back for CCD camera 3.
In the present embodiment, the annular light source 6 carries out high-brightness luminous using high density LED array.
The concrete structure of the installing rack is:The installing rack 2-1 is the plate-shaped member for being arranged on the top of bracing frame 2, its
Center is provided with and house for product A to be checked and block the open slot for setting.
The concrete mounting means of the high angle strip source is:The support 1 is in the left and right side point of detection zone 1-1
Side stand 8 is not provided with, the side stand 8 is provided with the support base that can down adjust height thereon relatively, the high angle strip light
Source 9 is arranged on corresponding support base 10.The side stand 8 is provided with the gathering sill 8-1 of longitudinal extension, and the support base 10 leads to
Cross the 3rd locking piece to lock with side stand 8 through perforation thereon and gathering sill 8-1, when the 3rd locking piece is unscrewed, adjust manually
Section support base 10 is capable of achieving the height adjustment of support base 10 and high angle strip source 9.
The positive visual angle CCD camera 3 of the present invention, side-looking angle CCD camera 4 and high angle strip source 9 can be carried out as needed
Altitude mixture control, because annular light source is directly anchored to below the positive camera lens of visual angle CCD camera 3, therefore positive visual angle CCD camera 3
Around annular light source is also synchronized with the movement therewith while altitude mixture control is carried out, and positive visual angle CCD camera 3 can be carried out
Fine setting, is provided with corresponding backlight 7 immediately below product to be checked, the present invention can solve the problem that is carrying out AOI visual appearance detections
When insufficient, the uneven problem of polishing, and due to polishing effect it is good, the photo that CCD camera is taken just more high-quality, then right
The result judgement of AOI visual appearances detection is just more accurate.
The above is only the concrete application example of the present invention, protection scope of the present invention is not limited in any way.Except above-mentioned
Implement exception, the present invention there can also be other embodiment.The technical scheme that all employing equivalents or equivalent transformation are formed,
Fall within scope of the present invention.
Claims (8)
1. a kind of AOI vision-based detection annular light source matches somebody with somebody side light source and backlight testing agency, including support (1) and CCD camera, institute
State and have on support (1) detection zone, it is characterised in that:The support (1) is provided with bracing frame (2) in detection zone, supports
Frame (2) top is provided with the installing rack (2-1) for fixing product to be checked (A), the underface of support (1) product (A) relatively to be checked
Backlight (7) is provided with, the CCD camera includes the positive visual angle CCD camera (3) directly over detection zone and positioned at detection
Side-looking angle CCD camera (4) of region side, the positive visual angle CCD camera (3) is mounted with ring light below its camera lens
Source (6), the support (1) is respectively provided with the high angle towards detection zone polishing above the left and right side of bracing frame (2)
Strip source (9), above-mentioned positive visual angle CCD camera (3), between side-looking angle CCD camera (4) and support (1) is respectively equipped with downslide
Motivation structure (5), the positive visual angle CCD camera (3), side-looking angle CCD camera (4) can phase by corresponding up-down slide mechanism (5)
To support (1) height up and down.
2. a kind of AOI vision-based detection annular light source according to claim 1 is with side light source and backlight testing agency, and it is special
Levy and be:The up-down slide mechanism (5) including two longitudinal slide rails being arranged in parallel (5-1) being installed on support (1), point
The sliding shoe (5-2) that is not slidably matched with longitudinal slide rail (5-1), between two longitudinal slide rails (5-1) and can opposite brackets (1)
The longitudinal screw mandrel (5-3) of rotation and the nut coordinated with longitudinal screw mandrel (5-3), the lower end of the longitudinal screw mandrel (5-3) has
Handwheel (5-4), the positive visual angle CCD camera (3), side-looking angle CCD camera (4) are installed on respectively accordingly by sliding seat (11)
On the slide block (5-2) of up-down slide mechanism (5), sliding seat (11) is connected with corresponding nut, positive visual angle CCD camera (3)
And/or side-looking angle CCD camera (4) is when needing to adjust height, the handwheel (5-4) of corresponding up-down slide mechanism (5), handwheel are rotated
(5-4) longitudinal screw mandrel (5-3) is driven to rotate, so as to drive nut and sliding seat (11) height up and down.
3. a kind of AOI vision-based detection annular light source according to claim 1 and 2 matches somebody with somebody side light source and backlight testing agency,
It is characterized in that:The positive visual angle CCD camera (3) including CCD camera body (3-1), can relative sliding seat (4) left and right adjusting
Intermediate support (3-2) and the fixed mount (3-3) that can in front and back adjust with respect to intermediate support (3-2), CCD camera sheet (3-1) body
On fixed mount (3-3).
4. a kind of AOI vision-based detection annular light source according to claim 3 is with side light source and backlight testing agency, and it is special
Levy and be:The intermediate support (3-2) is opening U-shaped support forward, and the middle part traversing section of U-shaped support has left and right to extension
The first chute (3-2-1), the both sides of U-shaped support have front rearwardly extending the second chute (3-2-2), the intermediate support
(3-2) locked with sliding seat (6) through the first chute (3-2-1) thereon by the first locking piece, when the first locking piece is unscrewed
When, the left and right adjustment that intermediate support (3-2) is capable of achieving CCD camera (3) is adjusted manually;The intermediate support (3-2) is by the
Two locking pieces are locked through the second chute (3-2-2) thereon with fixed mount (3-3), when the second locking piece is unscrewed, are adjusted manually
Section fixed mount (3-3) is capable of achieving adjusting in front and back for CCD camera (3).
5. a kind of AOI vision-based detection annular light source according to claim 1 and 2 matches somebody with somebody side light source and backlight testing agency,
It is characterized in that:The annular light source (6) carries out high-brightness luminous using high density LED array.
6. a kind of AOI vision-based detection annular light source according to claim 1 and 2 matches somebody with somebody side light source and backlight testing agency,
It is characterized in that:The installing rack (2-1) is to be arranged on the plate-shaped member at the top of bracing frame (2), and its center is provided with for treating
Inspection product (A) houses and blocks the open slot for setting.
7. a kind of AOI vision-based detection annular light source according to claim 1 and 2 matches somebody with somebody side light source and backlight testing agency,
It is characterized in that:The support (1) is respectively equipped with side stand (8), the side stand (8) in the left and right side of detection zone (1-1)
Being provided with can down adjust thereon the support base of height relatively, and the high angle strip source (9) is installed in corresponding support base
(10) on.
8. a kind of AOI vision-based detection annular light source according to claim 7 is with side light source and backlight testing agency, and it is special
Levy and be:It is characterized in that:The side stand (8) is provided with the gathering sill (8-1) of longitudinal extension, and the support base (10) passes through
3rd locking piece is locked through perforation thereon and gathering sill (8-1) with side stand (8), when the 3rd locking piece is unscrewed, manually
Adjust the height adjustment that support base (10) is capable of achieving support base (10) and high angle strip source (9).
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CN201710158785.9A CN106680207A (en) | 2017-03-17 | 2017-03-17 | Detection mechanism with side light source configured for annular light source and backlight source for AOI (Automated Optical Inspection) visual inspection |
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CN201710158785.9A CN106680207A (en) | 2017-03-17 | 2017-03-17 | Detection mechanism with side light source configured for annular light source and backlight source for AOI (Automated Optical Inspection) visual inspection |
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CN107462520A (en) * | 2017-07-25 | 2017-12-12 | 杭州电子科技大学 | Towards stainless steel plate on-line measuring device of the confined space based on machine vision |
CN107831172A (en) * | 2017-08-02 | 2018-03-23 | 深圳市迪姆自动化有限公司 | Full-automatic glass surface blemish detection machine |
CN108267448A (en) * | 2018-01-23 | 2018-07-10 | 上海读家电子科技有限公司 | A kind of backlight operating mechanism for ceramic substrate detection |
CN108332675A (en) * | 2017-11-14 | 2018-07-27 | 苏州华智诚精工科技有限公司 | A kind of type semienclosed circular hole measuring device tool and its measurement method |
CN108760765A (en) * | 2018-05-24 | 2018-11-06 | 武汉精测电子集团股份有限公司 | A kind of surface damage defect detecting device and method based on the shooting of side view camera |
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CN107462520A (en) * | 2017-07-25 | 2017-12-12 | 杭州电子科技大学 | Towards stainless steel plate on-line measuring device of the confined space based on machine vision |
CN107462520B (en) * | 2017-07-25 | 2023-11-28 | 杭州电子科技大学 | Stainless steel plate on-line detection device based on machine vision and oriented to limited space |
CN107831172A (en) * | 2017-08-02 | 2018-03-23 | 深圳市迪姆自动化有限公司 | Full-automatic glass surface blemish detection machine |
CN108332675A (en) * | 2017-11-14 | 2018-07-27 | 苏州华智诚精工科技有限公司 | A kind of type semienclosed circular hole measuring device tool and its measurement method |
CN108267448A (en) * | 2018-01-23 | 2018-07-10 | 上海读家电子科技有限公司 | A kind of backlight operating mechanism for ceramic substrate detection |
CN108760765A (en) * | 2018-05-24 | 2018-11-06 | 武汉精测电子集团股份有限公司 | A kind of surface damage defect detecting device and method based on the shooting of side view camera |
WO2020077908A1 (en) * | 2018-10-17 | 2020-04-23 | 广州超音速自动化科技股份有限公司 | Adjustment device for visual inspection system |
CN109696444A (en) * | 2019-01-18 | 2019-04-30 | 北京兆维电子(集团)有限责任公司 | A kind of condenser type mould group screen appearance detection system and method |
CN111272770A (en) * | 2020-02-18 | 2020-06-12 | 长沙师范学院 | Product detection device based on machine vision |
CN112811121A (en) * | 2020-12-30 | 2021-05-18 | 珠海格力智能装备有限公司 | Visual inspection device |
CN115508059A (en) * | 2022-11-15 | 2022-12-23 | 北京阿丘科技有限公司 | Multifunctional optical experiment platform |
CN115508059B (en) * | 2022-11-15 | 2023-03-07 | 北京阿丘科技有限公司 | Multifunctional optical experiment platform |
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