CN102706294A - Device for detecting surface evenness of object - Google Patents
Device for detecting surface evenness of object Download PDFInfo
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- CN102706294A CN102706294A CN2012101356921A CN201210135692A CN102706294A CN 102706294 A CN102706294 A CN 102706294A CN 2012101356921 A CN2012101356921 A CN 2012101356921A CN 201210135692 A CN201210135692 A CN 201210135692A CN 102706294 A CN102706294 A CN 102706294A
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Abstract
The invention relates to a device for detecting the surface evenness of an object, in particular to a device for detecting the evenness of a surface for mirror reflection. The device comprises an object sample placing platform, a structural light source, an optical signal receiving device and an image analysis device, wherein the object sample placing platform is used for placing and fixing object samples; the structural light source can emit light source of light rays with a certain shape and is irradiated on the object sample placing platform; and the optical signal receiving device is used for receiving image signals of reflected light of the object sample. According to the invention, the surface evenness of object samples is analyzed based on the image signals of the object sample after the light rays with a certain shape are reflected, so that the surface quality and yield of objects are improved.
Description
Technical field
The present invention relates to a kind ofly be used to detect the smooth device of object surface, but relate in particular to a kind of device that is used to detect the surfacing of direct reflection.
Background technology
Along with the raising day by day of living standard, the raising that people also do not carry the quality of life appliance and office accommodations, the surface of a lot of products in the daily life tools; People need it very smooth even smooth, and like metal surface, plastic cement surface and the glass surface etc. of apparatus, and these products are when production and processing; It is the flatness that need not detect the surface; Therefore the product of producing does not much meet modern's requirement, thereby causes stockpiling of unsold product, brings greater loss for producer, businessman.
Summary of the invention
The objective of the invention is to solve the deficiency of prior art; A kind of smooth device of object surface that is used to detect is provided; This device can detect its surperficial flatness in the production run of product, avoids undesirable product to come into the market, and improves the yield rate of product.
For achieving the above object, the technical scheme that the present invention adopts is:
A kind ofly be used to detect the smooth device of object surface, comprise:
Object sample mounting table; Be used for placing and the mounting article sample;
The structure light source; Send the light source of the light with shape, light source is generally parallel striated or latticed light source, and shines the object sample on the object sample mounting table; Light source can shine directly into object sample mounting table, also can be through shining object sample mounting table again after other optical element reflections or the transmission;
Light signal receiving; Be used to receive the catoptrical picture signal of object surface;
Image analysis apparatus; Its signal input part is connected with the signal output part of light signal receiving, is used to handle the picture signal that light signal receiving receives, and image is analyzed.
The present invention's light source is set to launch the light with shape; After the illumination of this light source is mapped to the object sample; Light is launched at the object sample surfaces; If the object sample surfaces is smooth, then the reflected light of object sample surfaces remains the light with definite shape, and receives through light signal receiving; If the local out-of-flatness of object sample surfaces, light is after the reflection of object sample surfaces, and its shape generation local offset judges with this whether the object sample surfaces is smooth.
The picture signal of the light that image analysis apparatus can receive according to light signal receiving is analyzed; The shape of the light that the shape and the structure light source of the light that receives sent compares analysis, according to the side-play amount of the shape of the light that receives the object sample is classified.As when glass is tested, when side-play amount when being lower than a certain value, the object sample when mirror uses, can satisfy client's demand as the object screen; Otherwise just can not work as mirror uses; When side-play amount surpassed a certain value, when touch-screen uses, the client had feel to the object sample as the object screen, can not satisfy client's request for utilization of touch-screen.
Further, said a kind of smooth device of object surface that is used to detect also comprises:
Catoptron; Be used for the light that the structure light source sends is reflexed to the object sample surfaces.
Catoptron is placed in position according to the structure light source is placed, makes that the choice of location of structure light source is more extensive, as the structure light source being arranged on the object sample mounting table, through catoptron the light of structure light source is reflexed to the object sample surfaces.
Further, said a kind of smooth device of object surface that is used to detect also comprises:
Mirror mount; In order to stationary mirror;
Regulating device; Be connected with mirror mount, be used for the angle of accommodation reflex mirror fixed mount, and then the angle of the light of the level angle of accommodation reflex mirror and entering object sample.
Further, a kind ofly be used to detect the smooth device of object surface, also comprise:
The structure light source fixing frame; Be used for fixing the structure light source;
As equivalent variations, can regulating device be connected with the structure light source fixing frame, through the level angle of adjustment structure light source geometrical clamp, and then the angle of the light of the angle of the emergent light of adjusting fixed light source and entering object sample.
Further, said light signal receiving is camera or video camera.
Further, said object sample mounting table, structure light source fixing frame are integrated into a worktable, and the upper surface of worktable is mounting article sample mounting table and structure light source fixing frame successively.
Further, said mirror mount comprises bracing frame and the rack that is used to place catoptron, and rack is fixed in the top of bracing frame.
Further, said regulating device comprises at least three bolts, and rack is provided with the bolt hole that matches with bolt, and the screw rod of bolt is threaded with rack through bolt hole, and the lower surface of the upper end of screw rod and catoptron offsets.
Can finely tune the position of catoptron through regulating bolt, and then regulate the light angle that gets into the object sample.
Further; Support frame as described above is provided with the fixed bar that is used to connect light signal receiving; Light signal receiving is movably connected on the fixed bar, and light signal receiving can move along the length direction of fixed bar, and light signal receiving can be the axle center rotation with the junction simultaneously.
For improving the stability of operation, can adopt 4 bolts, 4 bolts are distributed in four jiaos of catoptron.
Further, said structure light source comprises grating and the illuminating lamp that is used to regulate the rayed direction, and grating is positioned at the place ahead of the light exit direction of illuminating lamp.
The light that illuminating lamp sends forms the light with definite shape through behind the grating; When having a plurality of parallel gap when grating, the light that sends through grating is the directional light of striated; As having latticed gap when grating, the light that sends through grating is latticed directional light; Certainly the gap of grating can be designed to other shapes according to actual conditions, like spider reticulation etc.; As long as help to analyze the light image skew, the hole shape of grating is unrestricted.
Further, said a kind of smooth device of object surface that is used to detect also comprises display, and display is connected with image analysis apparatus or light signal receiving.
The image information that to pass through the light after the object sample reflects through image analysis apparatus or light signal receiving shows at display, is convenient to observation.
Further, said grating is the horizontal grating that has many parallel clearances.
Further, said grating is the raster grating that has latticed gap.
Further; Said structure light source comprises the horizontal luminophor and the vertical luminophor of vertically placing of horizontal positioned; The top of horizontal luminophor is provided with the horizontal raster that has lateral clearance; The place ahead of said vertical luminophor is provided with the vertical grating that has vertical gap, is provided with spectroscope between horizontal raster and the vertical grating, and the light that vertical luminophor sends shines the spectroscope back reflection and forms reflected light through vertical grating; The light that horizontal luminophor sends shines behind the spectroscope transmission and forms transmitted light through horizontal raster, and the exit direction of said catoptrical exit direction and transmitted light is parallel.
Through two groups of luminophors and the grating and the spectroscope of vertical placement, the light that makes the structure light source send is latticed; Simultaneously, the luminous of two groups of luminophors can be controlled respectively, and when having only horizontal luminophor luminous, the structure light source sends laterally parallel striped light; When having only vertical luminophor luminous, the structure light source sends the striped light of parallel longitudinal; Two kinds of light can be lighted in timesharing, also can light simultaneously; Light the combined light source that forms the parallel stripes shape simultaneously, the striped of combined light source is vertical each other.Can come the utilization structure light source as required.
Further, the bottom surface of said worktable is provided with at least three pin cups.
The pin cup is set is convenient to regulate the levelness of worktable.
The beneficial effect that the present invention obtains is: a kind ofly be used to detect the smooth device of object surface, comprise: object sample mounting table, structure light source, light signal receiving and image analysis apparatus; Wherein object sample mounting table is used to place with the mounting article sample; The structure light source can send the light source of the light with definite shape, and oblique illumination is to object sample mounting table; Light signal receiving is used to receive the catoptrical picture signal of object sample; The signal input part of image analysis apparatus is connected with the signal output part of light signal receiving, is used to handle the picture signal that light signal receiving receives, and image is analyzed.The present invention has the smooth situation that picture signal behind the light of definite shape is analyzed the object sample surfaces according to object sample reflection; The quality on the surface of raising product and the yield rate of product.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a kind of structural representation of structure light source of the present invention.
Reference numeral is:
1---worktable 2---pin cup
3---fixed bar 4---bracing frame
5---catoptron 6---rack
7---light signal receiving 8---structure light source
The horizontal luminophor of 11---object sample mounting tables 81---
82---horizontal raster 83---spectroscope
84---vertical gratings 85---are luminophor vertically.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is made instructions further.
Embodiment: as shown in Figure 1, a kind ofly be used to detect the smooth device of object surface, comprising: object sample mounting table 11, structure light source 8, light signal receiving 7 and image analysis apparatus; Wherein object sample mounting table 11 is used to place with the mounting article sample; Structure light source 8 can send the light source of the light with shape, and oblique illumination is to the object sample of object sample mounting table 11; Light signal receiving 7 is used to receive the catoptrical picture signal of object sample; The signal input part of image analysis apparatus is connected with the signal output part of light signal receiving 7, is used to handle the picture signal that light signal receiving 7 receives, and image is analyzed.In the present embodiment; Consider the placement location of structure light source 8, can set up catoptron 5 according to demand, as shown in Figure 1; Structure light source 8 and object sample are positioned over the homonymy of catoptron 5; The light that structure light source 8 sends shines the object sample after reflecting through catoptron 5, and the object sample reflexes to light signal receiving 7 again; Make that the position choice of structure light source 8 is more extensive.
For object sample mounting table 11, structure light source 8, catoptron 5 and light signal receiving 7 are fixed up, and form certain light path; Structure light source fixing frame, mirror mount have been designed in the present embodiment accordingly; For simplification device, structure light source fixing frame, object sample mounting table 11 are integrated into a worktable 1, perhaps structure light source fixing frame, object sample mounting table 11 are arranged on the worktable 1 jointly; Simultaneously mirror mount is fixed in an end of worktable 1, wherein mirror mount comprises bracing frame 4 and the rack 6 that is used to place catoptron 5, and rack 6 is fixed in the top of bracing frame 4.
In order to improve the adjustability of device, also designed regulating device among the embodiment, regulating device is connected with mirror mount, is used for the angle of accommodation reflex mirror fixed mount, and then the angle of the light of the level angle of accommodation reflex mirror and entering object sample.Wherein regulating device comprises at least three bolts; 4 bolts have been designed in the present embodiment; Rack 6 is provided with the bolt hole that matches with bolt; Bolt hole lays respectively at 4 weeks of rack 6, and the screw rod of bolt is threaded with rack 6 through bolt hole, and the lower surface of the upper end of screw rod and catoptron offsets.Can finely tune the horizontal level of catoptron through regulating bolt, and then reach the light angle of regulating entering object sample.Certainly regulating device also can design on the structure light source fixing frame, through shooting angle and the light path that light is regulated in the position of adjustment structure light source fixing frame, makes the light of object sample reflection well to be received by light signal receiving 7.
For making things convenient for fixed light signal receiving device 7; Support frame as described above 4 is provided with the fixed bar 3 that is used for fixing light signal receiving 7; Light signal receiving 7 activities are fixed on the fixed bar 3; Light signal receiving 7 can move along the length direction of fixed bar 3, and light signal receiving 7 can be the axle center rotation with the junction simultaneously.Because the light of object sample reflection has certain limit; Light signal receiving 7 possibly once receive infull light signal information; Need optical signal device be moved, so that adaptive act light signal in a big way, help the flat condition of multianalysis object sample surfaces.
When present embodiment was implemented, structure light source 8 comprised grating and the illuminating lamp that is used to regulate the rayed direction, and grating is positioned at the place ahead of the light exit direction of illuminating lamp, and is as shown in Figure 1.The light that illuminating lamp sends forms the light with definite shape through behind the grating; Can grating be designed to have the horizontal grating of a plurality of parallel clearances as required; Also can said grating be designed to have the raster grating in latticed gap; When grating had a plurality of parallel gap, the light that sends through horizontal grating was the directional light that is striated; When grating has latticed gap, the light that sends through raster grating is latticed directional light; Certainly the gap of grating can be designed to other shapes according to actual conditions, like spider reticulation etc.; As long as help to analyze the light image skew, the gap shape of grating is unrestricted.
For the ease of observation, can bracing frame 4 be fixed in fixed bar 3 activities simultaneously, fixed bar 3 can move along bracing frame vertical 4.Light signal receiving 7 can be in the horizontal direction laterally, vertically move.Increase the moving range of light signal receiving 7; Light signal receiving is moved to better position, receive more light signal image information.
Be convenient observation object sample surfaces flat condition, said a kind of smooth device of object surface that is used to detect also comprises display (not drawing among the figure), and display is connected with image analysis apparatus or light signal receiving 7.The image information that to pass through the light after the object sample reflects through image analysis apparatus or light signal receiving 7 shows at display, is convenient to observation.Display can be provided with worktable 1 or bracing frame 4 on, also can be in addition be provided with separately.
In the present embodiment, image analysis apparatus can be made up of the main frame that has image analysis software, and light signal receiving 7 is given main frame with the light signal image transfer that receives, and main frame carries out Treatment Analysis to the light signal image.
For further; For making structure light source 8 adjustable flexibly; Said structure light source 8 comprises the horizontal luminophor 81 and the vertical luminophor of vertically placing 85 of horizontal positioned; The top of horizontal luminophor 81 is provided with the horizontal raster that has lateral clearance; The place ahead of said vertical luminophor 85 is provided with the vertical grating 84 that has vertical gap, is provided with spectroscope 83 between horizontal raster and the vertical grating 84, and the light that vertical luminophor 85 sends shines spectroscope 83 back reflections and forms reflected light through vertical grating 84; The light that horizontal luminophor 81 sends shines spectroscope 83 back transmissions and forms transmitted light through horizontal raster 82, and the exit direction of said catoptrical exit direction and transmitted light is parallel.As shown in Figure 2; The structure light source is the combination of two kinds of light sources, and the light that horizontal luminophor 81 sends forms many horizontal parallel striped light after passing through horizontal raster 82, spectroscope 83; Vertically the light that sends of luminophor 85 through vertical grating 84, spectroscope 83 after, form the striped light of many parallel longitudinals; The shape of the xsect of two kinds of striped light is vertical each other, and can timesharing control, and makes the structure light source have and send laterally parallel striped light, sends the striped light of parallel longitudinal, sends the performance of latticed light.
Vertically luminophor can be the LED lamp of a plurality of horizontal positioned, and the exit direction of the light of LED lamp is a horizontal direction.
Horizontal luminophor can be the LED lamp of a plurality of vertical placements, and the exit direction of the light of LED lamp is a vertical direction.
For ease of regulating the levelness of worktable 1, the bottom surface of said worktable 1 is provided with at least three pin cups 2.Be provided with 4 pin cups 2 in the lower surface of worktable 1 in the present embodiment, regulate worktable 1 level through regulating pin cup 2.
Below only be the application's preferred embodiment, equivalent technical solutions on this basis still falls into the application protection domain.
Claims (10)
1. one kind is used to detect the smooth device of object surface, and it is characterized in that: it comprises:
Object sample mounting table; Be used for placing and the mounting article sample;
The structure light source; Send the light source of light, and shine the object sample on the object sample mounting table with shape;
Light signal receiving; Be used to receive the catoptrical picture signal of object sample surfaces;
Image analysis apparatus; Its signal input part is connected with the signal output part of light signal receiving, is used to handle the picture signal that light signal receiving receives, and image is analyzed.
2. a kind of smooth device of object surface that is used to detect according to claim 1 is characterized in that: also comprise:
Catoptron; Be used for the light that the structure light source sends is reflexed to the object sample surfaces.
3. a kind of smooth device of object surface that is used to detect according to claim 2 is characterized in that: also comprise:
Mirror mount; In order to stationary mirror;
Regulating device; Be connected with mirror mount, be used for the angle of accommodation reflex mirror fixed mount, with the level angle of accommodation reflex mirror and the angle that gets into the mirror reflects light of object sample;
The structure light source fixing frame; Be used for fixing the structure light source;
Display, display is connected with image analysis apparatus or light signal receiving;
Said light signal receiving is camera or video camera.
4. a kind of smooth device of object surface that is used to detect according to claim 3; It is characterized in that: said object sample mounting table, structure light source fixing frame are integrated into a worktable, and the upper surface of worktable is mounting article sample mounting table and structure light source fixing frame successively.
5. a kind of smooth device of object surface that is used to detect according to claim 4 is characterized in that: said mirror mount comprises bracing frame and the rack that is used to place catoptron, and rack is fixed in the top of bracing frame; Said regulating device comprises at least three bolts, and rack is provided with the bolt hole that matches with bolt, and the screw rod of bolt is threaded with rack through bolt hole, and the lower surface of the upper end of screw rod and catoptron offsets.
6. a kind of smooth device of object surface that is used to detect according to claim 5; It is characterized in that: support frame as described above is provided with the fixed bar that is used to connect light signal receiving; Light signal receiving is movably connected on the fixed bar; Light signal receiving can move along the length direction of fixed bar, and light signal receiving can be the axle center rotation with the junction simultaneously.
7. a kind of smooth device of object surface that is used to detect according to claim 1, it is characterized in that: said structure light source comprises grating and the illuminating lamp that is used to regulate the rayed direction, grating is positioned at the place ahead of the light exit direction of illuminating lamp.
8. a kind of smooth device of object surface that is used to detect according to claim 7, it is characterized in that: said grating is the horizontal grating that has a plurality of parallel clearances.
9. a kind of smooth device of object surface that is used to detect according to claim 7, it is characterized in that: said grating is the raster grating that has latticed gap.
10. a kind of smooth device of object surface that is used to detect according to claim 1; It is characterized in that: said structure light source comprises the horizontal luminophor and the vertical luminophor of vertically placing of horizontal positioned; The top of horizontal luminophor is provided with the horizontal raster that has lateral clearance; The place ahead of said vertical luminophor is provided with the vertical grating that has vertical gap; Be provided with spectroscope between horizontal raster and the vertical grating; Vertically the light that sends of luminophor shines the spectroscope back reflection and forms reflected light through vertical grating, and the light that horizontal luminophor sends shines behind the spectroscope transmission and forms transmitted light through horizontal raster, and the exit direction of said catoptrical exit direction and transmitted light is parallel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210135692.1A CN102706294B (en) | 2012-05-04 | 2012-05-04 | A kind of for detecting the smooth device of object surface |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210135692.1A CN102706294B (en) | 2012-05-04 | 2012-05-04 | A kind of for detecting the smooth device of object surface |
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| CN102706294A true CN102706294A (en) | 2012-10-03 |
| CN102706294B CN102706294B (en) | 2015-11-11 |
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| CN201210135692.1A Active CN102706294B (en) | 2012-05-04 | 2012-05-04 | A kind of for detecting the smooth device of object surface |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106863331A (en) * | 2017-03-14 | 2017-06-20 | 深圳广田机器人有限公司 | Intelligence finishing robot platform |
| CN108562250A (en) * | 2018-05-16 | 2018-09-21 | 湖南大学 | Keyboard cover flatness method for fast measuring based on structure light imaging and device |
| CN112179295A (en) * | 2019-07-05 | 2021-01-05 | 青岛海尔电冰箱有限公司 | Method and device for detecting flatness of surface of door body |
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| CN102155925A (en) * | 2011-01-07 | 2011-08-17 | 中国科学院上海光学精密机械研究所 | Three-dimensional surface topography measuring device based on one-dimensional Dammann grating |
| CN202204482U (en) * | 2011-07-20 | 2012-04-25 | 哈尔滨理工大学 | Projection device used for structured light three-dimensional measurement |
| CN202599367U (en) * | 2012-05-04 | 2012-12-12 | 东莞市奥普特自动化科技有限公司 | Device for detecting surface smoothness of object |
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| CN100452819C (en) * | 2005-10-13 | 2009-01-14 | 富士施乐株式会社 | Image reading device and image forming device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106863331A (en) * | 2017-03-14 | 2017-06-20 | 深圳广田机器人有限公司 | Intelligence finishing robot platform |
| CN108562250A (en) * | 2018-05-16 | 2018-09-21 | 湖南大学 | Keyboard cover flatness method for fast measuring based on structure light imaging and device |
| CN108562250B (en) * | 2018-05-16 | 2020-07-10 | 湖南大学 | Keyboard keycap flatness rapid measurement method and device based on structured light imaging |
| CN112179295A (en) * | 2019-07-05 | 2021-01-05 | 青岛海尔电冰箱有限公司 | Method and device for detecting flatness of surface of door body |
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| CN102706294B (en) | 2015-11-11 |
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Address after: Changan Jin Jin Ha Community Industrial District of Henan city of Dongguan province Guangdong 523000 liters Road No. 8 Patentee after: Guangdong aopute Polytron Technologies Inc Address before: Changan Town, Guangdong city of Dongguan province 523000 highway 358 road usha Yifeng commercial building four floor Dongguan aopute Automation Technology Co. Ltd. Patentee before: Dongguan OPT Machine Vision Tech Co.,Ltd. |
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Denomination of invention: Device for detecting surface evenness of object Effective date of registration: 20180105 Granted publication date: 20151111 Pledgee: China Co truction Bank Corp Dongguan branch Pledgor: Guangdong aopute Polytron Technologies Inc Registration number: 2018440000009 |
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