CN106525867A - Visual detection device of air cylinder shell defect detection system - Google Patents
Visual detection device of air cylinder shell defect detection system Download PDFInfo
- Publication number
- CN106525867A CN106525867A CN201611248760.XA CN201611248760A CN106525867A CN 106525867 A CN106525867 A CN 106525867A CN 201611248760 A CN201611248760 A CN 201611248760A CN 106525867 A CN106525867 A CN 106525867A
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- camera lens
- led
- air cylinder
- inspection apparatus
- detecting system
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- 230000007547 defect Effects 0.000 title claims abstract description 31
- 238000001514 detection method Methods 0.000 title abstract description 12
- 230000000007 visual effect Effects 0.000 title abstract description 5
- 238000007689 inspection Methods 0.000 claims description 13
- 238000007373 indentation Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 230000006698 induction Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
- F21V19/0015—Fastening arrangements intended to retain light sources
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/40—Lighting for industrial, commercial, recreational or military use
- F21W2131/403—Lighting for industrial, commercial, recreational or military use for machines
-
- 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
- G01N2021/8809—Adjustment for highlighting flaws
-
- 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
- G01N2021/8835—Adjustable illumination, e.g. software adjustable screen
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- 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)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention discloses a visual detection device of an air cylinder shell defect detection system. The visual detection device comprises a camera lens, a CCD (charge-coupled device) image sensor is connected to one end of the camera lens, a totally-reflecting prism is connected to the other end of the camera lens, an LED lamp cover is arranged at the lower edge of the camera lens, and a plurality of LED lamps are arranged on the LED lamp cover. The visual detection device has the advantages that the LED lamps are added to enhance lighting effects, the air cylinder shell defect image quality is improved, and defect characteristics can be highlighted from a background through the LED lamps; since an inner cavity of an air cylinder shell is small, a camera and the camera lens are incapable of shooting the sidewall thereof directly and can only shoot the scene on the bottom surface of the inner cavity of an air cylinder all-dimensionally with the aid of the totally-reflecting prism; due to the limitation of the hole diameter of the inner cavity of the air cylinder shell, a control system for controlling the LED lamps is arranged on the LED lamp cover independently and used for controlling the light intensity of the LED lamps, so that a position to be detected is irradiated by light uniform and proper in intensity, a contrast ratio of a defect and the background is highlighted, and later-period defect image algorithm design is simplified.
Description
Technical field
The present invention relates to a kind of simple structure, reasonable in design, the LED light device with light filling effect is improved outside cylinder
Shell defect image quality, simplifies the vision inspection apparatus of the cylinder baffle defect detecting system of later stage defect image algorithm design.
Background technology
Chinese Patent Application No.：201220396796.3, a kind of detection module that CCD is used in detection process is disclosed,
The linear module of Y-axis, line slideway, Y-axis induction apparatuss, defective products fixed mount, negative pressure gauge stand are housed on its testing agency's base；XY
Contiguous block is solid on line slideway and the linear module of Y-axis；X, Y-axis servo motor are connected with X, the linear module of Y-axis respectively；X-axis line
Property module, Y-axis sensing chip are fixed on XY contiguous blocks；Induction apparatuss seat, KK50 modules connecting plate are solid on the linear module of X-axis；X-axis
Induction apparatuss are solid on XY contiguous blocks and induction apparatuss seat；X-axis sensing chip and cylinder cushion block are solid on KK5O module connecting plates；CCD is slided
Dynamic plate and ring light fixed angles are mounted on cylinder cushion block；CCD adjustment knobs are filled on CCD sliding panels；CCD is locked on CCD sliding panels；
Circular lamp and cylinder are mounted in ring light fixed angles, and suction nozzle is arranged on cylinder.
Chinese Patent Application No.：201220023313.5, disclose a kind of engine cylinder locking plate press-loading piece of being applied to
Visual detection equipment, includes mobile working platform, and for placing detected engine valve mounting assembly, the platform can be
Move horizontally in X and Y-axis；Detection head assembly, the detection head assembly include high accuracy CCD and a tight shot；Control
Detecting system processed, which includes X, Y, Z axis kinetic control system and identifying system.
Foregoing invention creates complex structure, and camera lens does not have LED illumination System, and tested portion is by the uneven shadow with illuminance
Ring, it is impossible to prominent defect and the contrast of background, image fault may be made when the intensity of light source is larger, when the strength ratio of light source
When less, the noise on image can be strengthened, no matter illuminance is relatively strong, weaker or uneven, can all increase the difficulty of image algorithm
Degree.
The content of the invention
It is it is an object of the present invention to overcome the drawbacks described above of prior art, there is provided a kind of simple structure, reasonable in design, tool
The LED light device for having light filling to act on, improves cylinder baffle defect image quality, simplifies the vapour of later stage defect image algorithm design
The vision inspection apparatus of cylinder shell defect detecting system.
For achieving the above object, the technical scheme that the present invention is provided is as follows：A kind of cylinder baffle defect detecting system is regarded
Feel detection means, including one end is connected with the camera lens of ccd image sensor, the other end of camera lens is connected with total reflection prism, mirror
The lower edge of head is provided with LED set, and LED puts and is provided with some LEDs.
According to above technical requirements, the LED set is cylindrical, and the bottom of LED set has extended downwardly ledge, ledge
It is provided with some LEDs.
According to above technical requirements, the ledge is in " Jiong " shape, and the plane of incidence of total reflection prism is positioned at " Jiong " shape
Ledge indentation, there.
According to above technical requirements, the LED puts and is provided with control system, and the control system is by STC89C52 monolithics
Machine, DAC0808 D/A converter modules, high-gain amplifier, constant-current source circuit composition, connect STC89C52 monolithics by a host computer
Machine exports analog voltage by STC89C52 Single-chip Controlling DAC0808 D/A converter module output currents Jing after high-gain operating,
It is input to constant-current source circuit and drives LED.
According to above technical requirements, in the circuit of the DAC0808 D/A converter modules, STC89C52 single-chip microcomputers with
The A1-A8 feet of DAC0808 are connected for sending control code.
According to above technical requirements, the host computer connects STC89C52 single-chip microcomputers by RS232 serial ports.
Usefulness of the present invention is：Simple structure, it is reasonable in design, by increasing LED, illuminating effect is improved, improve vapour
Cylinder shell defect image quality, selects LED light source the feature of defect can be revealed to come from background convexity；Will by total reflection prism
Cylinder baffle bottom surface is imaged onto on the photosurface of CCD relief image sensors；Due to the inner chamber of cylinder baffle it is less, video camera and camera lens
Directly its side wall cannot be shot, so it is comprehensive to realize that the scape of cylinder inner cavity bottom surface is carried out by total reflection prism
Shoot；Due to being limited by cylinder baffle inner chamber aperture, LED puts the control system for being individually provided with control LED, control
The power of LED luminosity, makes position to be checked have the contrast of the uniform and suitable illuminance of intensity, prominent defect and background,
Simplify the design of later stage defect image algorithm.
Description of the drawings
Fig. 1 is the use state schematic diagram of the vision inspection apparatus of cylinder baffle defect detecting system of the present invention；
Fig. 2 is the structural representation of the vision inspection apparatus of cylinder baffle defect detecting system of the present invention；
Fig. 3 be cylinder baffle defect detecting system of the present invention vision inspection apparatus described in LED control system schematic diagram.
Specific embodiment
Below in conjunction with the accompanying drawings and preferred embodiment is further described with regard to technical scheme.
As shown in Figure 1-Figure 3, the vision inspection apparatus of a kind of cylinder baffle defect detecting system of the present invention, including
One end is connected with the camera lens 2 of ccd image sensor 1, and the other end of camera lens 2 is connected with total reflection prism 3, and the lower edge of camera lens 2 sets
There is LED set 4, LED set 4 is provided with some LEDs 5.
Further, the LED set 4 is cylindrical, and the bottom of LED set 4 has extended downwardly ledge 41, in ledge 41
It is provided with some LEDs.
Further, in " Jiong " shape, the plane of incidence 31 of total reflection prism 3 is located at the ledge of " Jiong " shape to the ledge 41
41 indentation, theres.
Due to being limited by 10 inside aperture of cylinder baffle, the control system of control LED on LED set 4, is individually provided with
6, the control system 6 is by STC89C52 single-chip microcomputers, DAC0808 D/A converter modules, high-gain amplifier, constant-current source circuit group
Into by host computer connection STC89C52 single-chip microcomputers by the output of STC89C52 Single-chip Controlling DAC0808 D/A converter module
Electric current exports analog voltage Jing after high-gain operating, is input to constant-current source circuit and drives LED.
In the circuit of the DAC0808 D/A converter modules, STC89C52 single-chip microcomputers are connected with the A1-A8 feet of DAC0808
For sending control code.
The host computer connects STC89C52 single-chip microcomputers by RS232 serial ports.
In the present embodiment：Simple structure, it is reasonable in design, by increasing LED, illuminating effect is improved, improve cylinder baffle and lack
Sunken picture quality, selects LED light source the feature of defect can be revealed to come from background convexity；By total reflection prism by cylinder baffle
Bottom surface is imaged onto on the photosurface of CCD relief image sensors；As the inner chamber of cylinder baffle is less, video camera and camera lens cannot be direct
Its side wall is shot, so can only realize that the scape of cylinder inner cavity bottom surface carries out omnidirectional shooting by total reflection prism；By
In being limited by cylinder baffle inner chamber aperture, LED puts the control system for being individually provided with control LED, controls LED luminosity
Power, make position to be checked that there is the uniform and suitable illuminance of intensity, the contrast of prominent defect and background, simplifying the later stage lacks
Sunken image algorithm design.
Above-described is only the principle of the present invention and preferred embodiment.It should be pointed out that the ordinary skill people to this area
For member, under the premise without departing from the principles of the invention, moreover it is possible to make some modifications and improvement, also should be regarded as belonging to the present invention
Protection domain.
Claims (6)
1. a kind of vision inspection apparatus of cylinder baffle defect detecting system, it is characterised in that：Ccd image is connected with including one end
The camera lens of sensor, the other end of camera lens are connected with total reflection prism, and the lower edge of camera lens is provided with LED set, and LED puts and is provided with
Some LEDs.
2. vision inspection apparatus of cylinder baffle defect detecting system according to claim 1, it is characterised in that：It is described
LED set is cylindrical, and the bottom of LED set has extended downwardly ledge, and ledge is provided with some LEDs.
3. vision inspection apparatus of cylinder baffle defect detecting system according to claim 2, it is characterised in that：It is described convex
In " Jiong " shape, the plane of incidence of total reflection prism is located at the ledge indentation, there of " Jiong " shape to frame.
4. vision inspection apparatus of cylinder baffle defect detecting system according to claim 1, it is characterised in that：It is described
LED puts and is provided with control system, and the control system is by STC89C52 single-chip microcomputers, DAC0808 D/A converter modules, high-gain
Amplifier, constant-current source circuit composition, connect STC89C52 single-chip microcomputers by STC89C52 Single-chip Controlling DAC0808 by a host computer
D/A converter module output current exports analog voltage Jing after high-gain operating, is input to constant-current source circuit and drives LED.
5. vision inspection apparatus of cylinder baffle defect detecting system according to claim 4, it is characterised in that：It is described
In the circuit of DAC0808 D/A converter modules, STC89C52 single-chip microcomputers are connected for sending control with the A1-A8 feet of DAC0808
Code.
6. vision inspection apparatus of cylinder baffle defect detecting system according to claim 4, it is characterised in that：On described
Position machine connects STC89C52 single-chip microcomputers by RS232 serial ports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611248760.XA CN106525867A (en) | 2016-12-29 | 2016-12-29 | Visual detection device of air cylinder shell defect detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611248760.XA CN106525867A (en) | 2016-12-29 | 2016-12-29 | Visual detection device of air cylinder shell defect detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106525867A true CN106525867A (en) | 2017-03-22 |
Family
ID=58338494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611248760.XA Pending CN106525867A (en) | 2016-12-29 | 2016-12-29 | Visual detection device of air cylinder shell defect detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106525867A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109239818A (en) * | 2017-07-11 | 2019-01-18 | 大立光电股份有限公司 | Annular optical element, imaging lens module and electronic device |
| CN109454195A (en) * | 2018-10-31 | 2019-03-12 | 安徽巨自动化装备有限公司 | A kind of aluminium vehicle body self-piercing riveting riveting mould failure visible detection method |
| CN110726731A (en) * | 2019-11-20 | 2020-01-24 | 苏州灵猴机器人有限公司 | Small-caliber long straight pipe inner wall defect detection device |
| CN111044527A (en) * | 2019-12-31 | 2020-04-21 | 珠海市汇邦智能科技有限公司 | Rubber sleeve defect identification and detection system |
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| JPH09318551A (en) * | 1996-05-29 | 1997-12-12 | Toyota Motor Corp | Apparatus for picking up image of tubular inner surface |
| JP2002022671A (en) * | 2000-07-12 | 2002-01-23 | Nissan Motor Co Ltd | Apparatus and method for inspecting inner wall surface of cylinder |
| CN101509759A (en) * | 2009-01-15 | 2009-08-19 | 上海交通大学 | Self-demarcating system and method for vision detecting system |
| CN103217103A (en) * | 2012-01-19 | 2013-07-24 | 昆山思拓机器有限公司 | Visual detection device for press fitting sheet of engine cylinder locking plate |
| KR20130103454A (en) * | 2013-07-04 | 2013-09-23 | 이영우 | Apparatus for inspecting cylinder |
| CN106018413A (en) * | 2016-05-12 | 2016-10-12 | 西安欣维视觉科技有限公司 | Product appearance detection device and method |
| CN206274314U (en) * | 2016-12-29 | 2017-06-23 | 重庆市江津区恩聪机械厂 | The vision inspection apparatus of cylinder baffle defect detecting system |
-
2016
- 2016-12-29 CN CN201611248760.XA patent/CN106525867A/en active Pending
Patent Citations (7)
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| JPH09318551A (en) * | 1996-05-29 | 1997-12-12 | Toyota Motor Corp | Apparatus for picking up image of tubular inner surface |
| JP2002022671A (en) * | 2000-07-12 | 2002-01-23 | Nissan Motor Co Ltd | Apparatus and method for inspecting inner wall surface of cylinder |
| CN101509759A (en) * | 2009-01-15 | 2009-08-19 | 上海交通大学 | Self-demarcating system and method for vision detecting system |
| CN103217103A (en) * | 2012-01-19 | 2013-07-24 | 昆山思拓机器有限公司 | Visual detection device for press fitting sheet of engine cylinder locking plate |
| KR20130103454A (en) * | 2013-07-04 | 2013-09-23 | 이영우 | Apparatus for inspecting cylinder |
| CN106018413A (en) * | 2016-05-12 | 2016-10-12 | 西安欣维视觉科技有限公司 | Product appearance detection device and method |
| CN206274314U (en) * | 2016-12-29 | 2017-06-23 | 重庆市江津区恩聪机械厂 | The vision inspection apparatus of cylinder baffle defect detecting system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109239818A (en) * | 2017-07-11 | 2019-01-18 | 大立光电股份有限公司 | Annular optical element, imaging lens module and electronic device |
| CN109239818B (en) * | 2017-07-11 | 2021-09-14 | 大立光电股份有限公司 | Annular optical element, imaging lens module and electronic device |
| CN109454195A (en) * | 2018-10-31 | 2019-03-12 | 安徽巨自动化装备有限公司 | A kind of aluminium vehicle body self-piercing riveting riveting mould failure visible detection method |
| WO2020087725A1 (en) * | 2018-10-31 | 2020-05-07 | 安徽巨一自动化装备有限公司 | Method for visually detecting failure of self-piercing riveting die in aluminum bodywork |
| CN110726731A (en) * | 2019-11-20 | 2020-01-24 | 苏州灵猴机器人有限公司 | Small-caliber long straight pipe inner wall defect detection device |
| CN111044527A (en) * | 2019-12-31 | 2020-04-21 | 珠海市汇邦智能科技有限公司 | Rubber sleeve defect identification and detection system |
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| C06 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170322 |
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| RJ01 | Rejection of invention patent application after publication |