CN105352971B - Column external defects inspection lighting device - Google Patents
Column external defects inspection lighting device Download PDFInfo
- Publication number
- CN105352971B CN105352971B CN201510954687.7A CN201510954687A CN105352971B CN 105352971 B CN105352971 B CN 105352971B CN 201510954687 A CN201510954687 A CN 201510954687A CN 105352971 B CN105352971 B CN 105352971B
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- diffusing reflection
- cylinder
- column
- lighting device
- shadow shield
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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
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8806—Specially adapted optical and illumination features
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention discloses a kind of column external defects inspection lighting device, it is characterised in that：Lighting device includes central diffusing reflection cylinder, is symmetricly set on the left and right end face light source at central diffusing reflection cylinder both ends；Multiple inspection holes for being used to shoot examined column surface image are equipped with the outer surface Middle Ring Line of central diffusing reflection cylinder, the inner surface of central diffusing reflection cylinder is equipped with one layer of cylinder diffusing reflection coating；Right end area source includes discoid supporting substrate, lamp seat and shadow shield for mounted LED lamp；The surface of supporting substrate towards central diffusing reflection cylinder side is equipped with one layer of end face diffusing reflection coating, and the surface of shadow shield is equipped with diffusing reflection coating；The center of supporting substrate and shadow shield is equipped with passes through hole for be examined that column passes through；The structure of left end area source is identical with right end area source.The configuration of the present invention is simple, it is highly practical, Uniform Illumination is realized, for machine vision technique column external defects are carried out with quick check and provides good condition.
Description
Technical field
The present invention relates to a kind of detection lighting device, specifically a kind of column external defects inspection illumination
Device.
Background technology
When to column external defects quickly check using machine vision technique, it is necessary to column to column
Outer surface is illuminated, and to ensure the uniformity of illumination as far as possible.Conventional machines vision light source whether planar light source or ring
Shape light source can not all ensure to realize column the uniform accuracy for illuminating, influencing inspection result.Therefore it provides one kind can
To realize Uniform Illumination to column, and the lighting system quickly checked is very necessary.
The content of the invention
Asked according to the technology set forth above for carrying out how providing Uniform Illumination light source to column during surface defect inspection
Topic, and a kind of column external defects inspection lighting device is provided.The present invention mainly utilizes circular cylindrical interior surface illuminator
As light source, the outer surface of columnar object is illuminated, illuminating ray surround cylinder, it is irradiated from all angles, from
And column exterior surface is evenly illuminated.
The technological means that the present invention uses is as follows：
A kind of column external defects inspection lighting device, it is characterised in that：It is unrestrained that the lighting device includes center
Reflecting drum, the right end area source and left end area source for being symmetricly set on the central diffusing reflection cylinder both ends；
The center diffusing reflection cylinder is tubular construction, is equipped with the outer surface Middle Ring Line of the central diffusing reflection cylinder multiple
The inspection hole for being examined column surface image is shot for video camera, the inner surface of the center diffusing reflection cylinder is equipped with one layer of column
Face diffusing reflection coating；
The right end area source includes discoid supporting substrate, lamp seat and shadow shield for mounted LED lamp, described
The inside of lamp seat towards the central diffusing reflection cylinder is set, and it is unrestrained anti-towards the center that the shadow shield is placed in the lamp seat
The end of shooting cylinder interior side；Overflow equipped with one layer of end face on the surface of the supporting substrate towards the central diffusing reflection cylinder side
Reflectance coating, the surface of the shadow shield are equipped with diffusing reflection coating；The center of the supporting substrate and the shadow shield is equipped with
Pass through hole for what the examined column passed through；
The structure of the left end area source is identical with the right end area source.
In actual work, the position of inspection hole sets video camera, and column exterior surface, above-mentioned column are examined for shooting
Face diffusing reflection coating, end face diffusing reflection coating and diffusing reflection coating are diffusive white reflective material, such as barium sulfate, calcium sulfate.
The effect of shadow shield is that the light for preventing LED light is shone directly on examined column, influences illuminating effect.Left end area source
Identical with right side light-source structure and symmetrically placed, holding is on same axis by hole, it is ensured that examined column can be with
Pass through inspection on the same axis.
Further, the lamp seat by multiple central axes using the central diffusing reflection cylinder as the rounded radial row of axis
The lamp seat monomer of cloth is formed.
Further, the lamp seat monomer includes consolidating with the bottom seat of supporting substrate fixation, with the shadow shield
It is fixed and along shadow shield end face vertical direction set top seat and be arranged on the base and the top seat between
The lamp mounting surface set in gradient.
Further, the angle between the lamp mounting surface and bottom seat is between 0 ° -90 °, it is preferable that angle exists
Between 15 ° -60 °.
Further, the material of the lamp seat is one kind in aluminium alloy, copper alloy.
The selection principle of lamp seat is the preferable material of heat conductivility, is not limited to above-mentioned two kinds.By above-mentioned peculiar
The form of lamp seat monomer and the arrangement of circle out shape, each diffusing reflection face of light directive that can launch LED light,
Light after diffusing reflection can equably be pointed to the examined column illumination on central diffusing reflection cylinder axis.
Compared with the prior art, the present invention is by manufacturing a circular cylindrical interior surface diffusing reflection face, in place cloth
Luminous point is put, lamp seat form is rationally set, coordinates with supporting substrate and shadow shield, makes each diffusing reflection face of light directive, is passed through
Light after the diffusing reflection of diffusing reflection face can realize to be examined column uniformly illuminates, be machine vision technique to column
Outer planar defect carries out quick check and provides good condition, has the advantages that of simple structure and strong practicability.
The present invention can be widely popularized in machine vision technique detection field for the foregoing reasons.
Brief description of the drawings
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is the Structure explosion diagram of the present invention.
Fig. 2 is the structure diagram of the present invention.
Fig. 3 is the front view of the present invention.
Fig. 4 is the sectional view of the present invention.
In figure：1st, central diffusing reflection cylinder 11, cylinder diffusing reflection coating 12, inspection hole 2, right end area source 21, supporting substrate
22nd, end face diffusing reflection coating 23, shadow shield 24, pass through hole 25, lamp seat 26, LED light 3, left end area source 4, be examined column
Thing.
Embodiment
As shown in Figures 1 to 4, a kind of column external defects inspection lighting device, during the lighting device includes
Centre diffusing reflection cylinder 1, the right end area source 2 and left end area source 3 for being symmetricly set on central 1 both ends of diffusing reflection cylinder；
The center diffusing reflection cylinder 1 is tubular construction, is equipped with the outer surface Middle Ring Line of the central diffusing reflection cylinder 1 more
A inspection hole 12 that 4 surface image of column is examined for video camera shooting, the inner surface of the center diffusing reflection cylinder 1 are equipped with
One layer of cylinder diffusing reflection coating 11；Setting for detection hole 12 can determine the number of openings according to the setting of video camera, in being distributed on
On loop wire, such as detection hole 12 can open up 3,4,5.
The right end area source 2 includes discoid supporting substrate 21, for the lamp seat 25 of mounted LED lamp 26 and shading
Plate 23, the inside of the lamp seat 25 towards the central diffusing reflection cylinder 1 are set, and the shadow shield 23 is placed in the lamp seat 25
Towards the end of central 1 interior side of diffusing reflection cylinder；The supporting substrate 21 is towards central 1 side of diffusing reflection cylinder
Surface is equipped with one layer of end face diffusing reflection coating 22, and the surface of the shadow shield 23 is equipped with diffusing reflection coating；The supporting substrate
21 and the shadow shield 23 center be equipped with for the examined column 4 pass through by hole 24；The cylinder is overflow instead
It is white diffusing reflection coating to penetrate coating 11, end face diffusing reflection coating 22 and diffusing reflection coating, and material is barium sulfate, calcium sulfate
Deng.The effect of shadow shield 23 is that the light for preventing LED light 26 is shone directly on examined column, influences illuminating effect.It is left
End face light source 3 and 2 structure of right end area source are identical and symmetrically placed, and holding is on same axis by hole 24, it is ensured that tested
Inspection can be passed through on the same axis by looking into column 4.
Lamp of the lamp seat 25 by multiple central axes using the central diffusing reflection cylinder 1 as the rounded radial arrangement of axis
Pedestal monomer is formed.The lamp seat monomer includes the bottom seat fixed with the supporting substrate 21 and the shadow shield 23 is solid
Top seat that is fixed and being set along 23 end face vertical direction of the shadow shield and it is arranged between the base and top seat
In gradient set lamp mounting surface.Angle between the lamp mounting surface and bottom seat is between 0 ° -90 °, it is preferable that
Angle is set can be between 15 ° -60 °, and special angle is set can be between 0 ° -45 °.During concrete application, folder
The endpoint value at angle is respectively：LED light is set on the seat of top, lamp is according to angle in 90 ° between direction and bottom seat at this time, then has bottom
LED light can also be set in end seat, and lamp is shone between direction and bottom seat into 0 ° of angle at this time；Other angles are in lamp mounting surface
The upper situation that LED light is set.The 25 selection principle of lamp seat is the preferable material of heat conductivility, can select aluminium alloy, copper
One kind in alloy, and it is not limited to above-mentioned two kinds.Pass through the form and circle out shape of above-mentioned distinctive lamp seat monomer
Arrangement, each diffusing reflection face of light directive that can launch LED light 26, the light after diffusing reflection can align equably
Illuminated in the examined column 4 on central 1 axis of diffusing reflection cylinder.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (5)
- A kind of 1. column external defects inspection lighting device, it is characterised in that：It is unrestrained anti-that the lighting device includes center Shooting cylinder (1), the right end area source (2) and left end area source (3) for being symmetricly set on described central diffusing reflection cylinder (1) both ends；The center diffusing reflection cylinder (1) is tubular construction, is equipped with the outer surface Middle Ring Line of the central diffusing reflection cylinder (1) more A inspection hole (12) that column (4) surface image is examined for video camera shooting, the interior table of the center diffusing reflection cylinder (1) Face is equipped with one layer of cylinder diffusing reflection coating (11)；The right end area source (2) include discoid supporting substrate (21), the lamp seat (25) for mounted LED lamp (26) and Shadow shield (23), the inside of the lamp seat (25) towards the central diffusing reflection cylinder (1) are set, and the shadow shield (23) is placed in The lamp seat (25) is towards the end of described central diffusing reflection cylinder (1) interior side；The supporting substrate (21) is described in The surface of central diffusing reflection cylinder (1) side is equipped with one layer of end face diffusing reflection coating (22), and the surface of the shadow shield (23) is set There is diffusing reflection coating；The center of the supporting substrate (21) and the shadow shield (23) is equipped with for the examined column (4) pass through by hole (24)；The structure of the left end area source (3) is identical with the right end area source (2).
- 2. column external defects inspection lighting device according to claim 1, it is characterised in that：The lamp seat (25) it is made of multiple lamp seat monomers using the central axes of the central diffusing reflection cylinder (1) as the rounded radial arrangement of axis.
- 3. column external defects inspection lighting device according to claim 2, it is characterised in that：The lamp seat Monomer include the bottom seat fixed with the supporting substrate (21), with the shadow shield (23) it is fixed and along the shadow shield (23) end face vertical direction is set top seat and it is arranged on being set in gradient between bottom seat and top seat Lamp mounting surface.
- 4. column external defects inspection lighting device according to claim 3, it is characterised in that：The lamp installation Angle between face and bottom seat is between 0 ° -90 °.
- 5. column external defects inspection lighting device according to claim 1, it is characterised in that：The lamp seat (25) material is aluminium alloy, one kind in copper alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510954687.7A CN105352971B (en) | 2015-12-17 | 2015-12-17 | Column external defects inspection lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510954687.7A CN105352971B (en) | 2015-12-17 | 2015-12-17 | Column external defects inspection lighting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105352971A CN105352971A (en) | 2016-02-24 |
| CN105352971B true CN105352971B (en) | 2018-05-04 |
Family
ID=55328977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510954687.7A Active CN105352971B (en) | 2015-12-17 | 2015-12-17 | Column external defects inspection lighting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105352971B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5604550A (en) * | 1994-10-31 | 1997-02-18 | Northeast Robotics, Inc. | Illumination device for indirectly illuminating an object with continuous diffuse light |
| CN102748638A (en) * | 2012-07-25 | 2012-10-24 | 电子科技大学 | LED lighting device for realizing uniform light on surface of cylinder and mounting method thereof |
| CN205317682U (en) * | 2015-12-17 | 2016-06-15 | 大连实远科技发展有限公司 | Lighting device is used in outer surface defect inspection of column |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE9400849L (en) * | 1994-03-08 | 1995-04-03 | Soliton Elektronik Ab | Device and method for detecting defects in wood |
| JP3366517B2 (en) * | 1995-11-27 | 2003-01-14 | 株式会社リコー | Cylindrical object defect detection device |
-
2015
- 2015-12-17 CN CN201510954687.7A patent/CN105352971B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5604550A (en) * | 1994-10-31 | 1997-02-18 | Northeast Robotics, Inc. | Illumination device for indirectly illuminating an object with continuous diffuse light |
| CN102748638A (en) * | 2012-07-25 | 2012-10-24 | 电子科技大学 | LED lighting device for realizing uniform light on surface of cylinder and mounting method thereof |
| CN205317682U (en) * | 2015-12-17 | 2016-06-15 | 大连实远科技发展有限公司 | Lighting device is used in outer surface defect inspection of column |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105352971A (en) | 2016-02-24 |
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