CN206208780U - Machine vision device for detecting cylindrical workpiece surface defect - Google Patents
Machine vision device for detecting cylindrical workpiece surface defect Download PDFInfo
- Publication number
- CN206208780U CN206208780U CN201621120218.1U CN201621120218U CN206208780U CN 206208780 U CN206208780 U CN 206208780U CN 201621120218 U CN201621120218 U CN 201621120218U CN 206208780 U CN206208780 U CN 206208780U
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- Prior art keywords
- plane
- cylindrical workpiece
- surface defect
- machine vision
- cylinder
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Abstract
The utility model discloses a kind of machine vision device for detecting cylindrical workpiece surface defect, including roller transfer module (4), cylinder image-forming module (5) and end face image-forming module (6), the roller transfer module (4) includes the inclined-plane that is rolled for cylindrical workpiece, the cylinder image-forming module (5) includes cylinder high speed imaging camera, the cylinder high speed imaging camera is positioned over inclined-plane top and view direction is perpendicular to inclined-plane, the end face image-forming module (6) includes two end face high speed imaging cameras, described two end face high speed imaging cameras are respectively placed in inclined-plane both sides and view direction is relative.The utility model is applied to the surface defect of detection Small Cylindrical body workpiece, and its surface defect can be once imaged and detected to the cylinder and both ends of the surface of multiple cylindrical workpieces, improves detection efficiency.
Description
Technical field
The utility model belongs to the technical field of workpiece surface detection, and in particular to one kind is for detecting cylindrical workpiece table
The machine vision device of planar defect.
Background technology
When cylindrical workpiece carries out surface defects detection, because whole cylinder cannot be Polaroid, fast automatic inspection is caused
The difficult point of survey, the cylindrical workpiece detection means that automates existing at present is broadly divided into two classes：The first kind is panoramic imagery module,
The use single camera or multiple cameras wherein having carry out splicing and obtain panoramic picture by continuous acquisition multiple image, and what is had adopts
Refractive and reflective panorama image-forming module is used, is constituted with a camera and minute surface group, cylindrical workpiece to be measured is obtained by refraction, reflection
Panoramic imagery, this kind of systems for optical system requirements is higher, the change of the angle of visual field, and distortion can be caused to change, therefore big to difference
Small element needs to design one-to-one optical system, underaction, and price is relatively expensive；Equations of The Second Kind device passes through camera
With the change of measured workpiece relative position, multiple image is gathered, so as to obtain complete cylindrical picture, wherein some devices are by work
360 ° of rotation platform central rotation is stood in part one end, and some devices clamp workpiece two ends rotational workpieces, and camera is in fixed position pair
Workpiece continuously adopts figure and obtains complete cylinder imaging, and this kind of device need at least prop up one end face of workpiece and be rotated, and cause detection
Both ends of the surface cannot be simultaneously detected during cylinder.It is less efficient and above-mentioned two classes device can only detect a cylindrical workpiece every time, nothing
Method replaces manually completely.Accordingly, it is desirable to provide a kind of new cylindrical workpiece surface defect detection apparatus solve the above problems.
Above-mentioned discussion content purpose is may be with the utility model being described below and/or advocate to reader's introduction
The related technology of various aspects various aspects, it is believed that the discussion content helps to be reader with background's information, with favourable
In more fully understanding various aspects of the present utility model, it is therefore to be understood that be that these discussions are read with this angle, rather than
Recognize prior art.
Utility model content
The purpose of this utility model is to avoid of the prior art not enough and provide a kind of for detecting cylindrical workpiece
The machine vision device of surface defect, it is based on machine vision, can the surface of quick detection cylindrical workpiece cylinder and end face lack
Fall into.
The purpose of this utility model is achieved through the following technical solutions：
A kind of machine vision device for detecting cylindrical workpiece surface defect, including roller transfer module, post are provided
Face image-forming module and end face image-forming module, the roller transfer module include the inclined-plane rolled for cylindrical workpiece, the post
Face image-forming module includes cylinder high speed imaging camera, and the cylinder high speed imaging camera is positioned over inclined-plane top and view direction is hung down
Straight in inclined-plane, the end face image-forming module includes two end face high speed imaging cameras, and described two end face high speed imaging cameras divide
Inclined-plane both sides are not placed in and view direction is relative.
As a further improvement, the cylinder image-forming module includes cylinder light source, the direction of illumination direction of cylinder light source
The inclined-plane.
As a further improvement, the end face image-forming module includes two groups of end face light sources, and two groups of end face light sources are put respectively
In inclined-plane both sides and direction of illumination is relative.
As a further improvement, also including conveyer belt, the output end of the conveyer belt is arranged on the upper end on the inclined-plane.
As a further improvement, workpiece separating modules are provided between the output end and inclined-plane of the conveyer belt, it is described
Workpiece separating modules include movable push bar, shim, cam and power set, and the movable push bar lower end is in deadweight or the unit that resets
Withstood in the presence of part on the curved surface of the cam, the shim is connected to the upper end of movable push bar, the power set drive
Moving cam is rotated, and when the cam rotation, the movable push bar drives the shim to open or close conveyer belt output end
Transfer passage between inclined-plane.
As a further improvement, the tilt adjustable on the inclined-plane.
As a further improvement, the roller transfer module includes the electrostatic adsorption device being arranged on inclined-plane.
As a further improvement, the roller transfer module includes the low pressure adsorbent device being arranged on inclined-plane.
As a further improvement, the low pressure adsorbent device includes aspiration pump, vacuum layer and breathable films, described ventilative
Film forms the vacuum layer with the upper surface on inclined-plane, and vacuum layer is connected with the bleeding point of aspiration pump.
As a result of above-mentioned structure, the utility model has the advantages that：
The utility model replaces rotating the complete cylinder of displaying using the rolling of cylindrical work, makes detection cylinder and test side
Face can be carried out simultaneously, and make that in a sub-picture multiple workpiece can be detected；The work that will closely be arranged using workpiece separating modules
Part separates fixed intervals, in order to image procossing；All may be used using length, angle of inclination, surface smoothness in roller transfer module
The workpiece of adjustment rolls inclined-plane and ensures workpiece PURE ROLLING, and using electrostatic adsorption device or low pressure adsorbent device control workpiece
It is steady to roll, do not beat；Increased while detecting using the width or number for adjusting workpiece rolling inclined-plane in roller transfer module
Piece count, improve detection efficiency；Using cylinder imaging system and end face imaging system simultaneously to cylinder and end face imaging inspection
Survey.The utility model is applied to the surface defect of detection Small Cylindrical body workpiece, can once to the post of multiple cylindrical workpieces
Face and both ends of the surface are imaged and detect its surface defect, improve detection efficiency.
Brief description of the drawings
Using accompanying drawing, the utility model is described in further detail, but embodiment in accompanying drawing is not constituted to of the present utility model
Any limitation, for one of ordinary skill in the art, on the premise of not paying creative work, can also be according to following attached
Figure obtains other accompanying drawings.
Fig. 1 is the structural representation for detecting the machine vision device of cylindrical workpiece surface defect.
Fig. 2 is the top view of Fig. 1.
Specific embodiment
In order that those skilled in the art more fully understands the technical solution of the utility model, below in conjunction with the accompanying drawings and tool
The utility model is described in further detail body embodiment, it is necessary to explanation is, in the case where not conflicting, the application's
Feature in embodiment and embodiment can be mutually combined.
As depicted in figs. 1 and 2, the machine vision for detecting cylindrical workpiece surface defect described in the utility model is filled
Put, including roller transfer module 4, cylinder image-forming module 5 and end face image-forming module 6, the roller transfer module 4 is including for justifying
The inclined-plane that Cylindrical workpiece is rolled, the cylinder image-forming module 5 includes cylinder light source and cylinder high speed imaging camera, and the cylinder is high
Fast image camera is positioned over inclined-plane top and view direction is perpendicular to inclined-plane, and the direction of illumination of cylinder light source is towards the inclined-plane.
The rolling cylindrical workpiece cylindrical picture of the multiple arrangements of cylinder high speed imaging camera continuous acquisition, includes one in each two field picture
To multiple cylindrical workpieces.The end face image-forming module 6 includes two end face high speed imaging cameras and two groups of end face light sources, described
Two end face high speed imaging cameras are respectively placed in inclined-plane both sides and view direction is relative, and two groups of end face light sources are respectively placed in inclined-plane two
Side and direction of illumination is relative.The view direction of end face high speed imaging camera parallel to cylindrical workpiece end face direction arrange, continuously
Collection is rolled in cylindrical workpiece both ends of the surface image, each two field picture comprising one to multiple cylindrical workpieces.
Used as further preferred embodiment, also including conveyer belt 1, the output end of the conveyer belt 1 is arranged on described
The upper end on inclined-plane, conveyer belt 1 can continuous conveying cylindrical workpiece, raising detection efficiency.
As further preferred embodiment, workpiece separation is provided between the output end and inclined-plane of the conveyer belt 1
Module 3, the workpiece separating modules 3 include movable push bar 31, shim, cam 32 and power set, the movable push bar 31
Lower end withstands on the curved surface of the cam 32 in the presence of deadweight or reset element, and the shim is connected to movable push bar 31
Upper end, the power set driving cam 32 is rotated, and when the cam 32 is rotated, the movable push bar 31 drives described point
Partition opens or closes the transfer passage between the output end of conveyer belt 1 and inclined-plane.Shim moves up and down and separates workpiece, will be adjacent
The workpiece separates certain intervals and is beneficial to rolling and image procossing.
As further preferred embodiment, the tilt adjustable on the inclined-plane.Preferably, the length on inclined-plane, incline
Rake angle, surface roughness can be adjusted, to ensure that cylindrical workpiece does fricton-tight PURE ROLLING.Wherein rough surface
The adjustment of degree can be realized by adjusting the means such as finish, material on inclined-plane.The rolling surface width of the roller transfer module
Can adjust, so can simultaneously be rolled to improve detection efficiency with multiple rows of workpiece.
Used as further preferred embodiment, the roller transfer module 4 includes the Electrostatic Absorption being arranged on inclined-plane
Device or low pressure adsorbent device, ensure workpiece along inclined-plane without spring, steady, at the uniform velocity ground roll by adjusting electrostatic or low pressure
It is dynamic.
Used as further preferred embodiment, the low pressure adsorbent device includes aspiration pump, vacuum layer 41 and breathes freely thin
Film 42, breathable films 42 are uniform breathable films, and the breathable films 42 form the vacuum layer 41 with the upper surface on inclined-plane, very
Dead level 41 is connected with the bleeding point of aspiration pump.During pumping pump work, vacuum layer is evacuated, and breathable films 42 produce negative pressure, right
The cylindrical workpiece of rolling produces suction, it is evenly rolled as far as possible.
Operation principle of the present utility model：The communicated band of columna body workpiece is neat, close-packed arrays are transported to workpiece point
At module, the cam in workpiece separating modules drives demarcation strip to be moved up and down in conveyer belt bottom in continuous rotation, makes work
Produce certain intervals between part, the inclined-plane of roller transfer module by angle of inclination, length, surface flatness regulation, it is ensured that
Workpiece PURE ROLLING, low pressure or electrostatic adsorption device impose the pressure perpendicular to inclined-plane to workpiece to avoid vibration of workpiece, jump
Dynamic, it is ensured that workpiece uniform roll on inclined-plane, cylinder image-forming module rolls inclined-plane, continuous imaging, per two field picture perpendicular to workpiece
In comprising one to multiple workpiece, end face image-forming module includes two groups of identical image-forming modules, is respectively aligned to cylindrical workpiece
Two end faces continuously adopt figure, comprising one to multiple workpiece in every two field picture.Through image procossing, each workpiece can be simultaneously detected
The surface defect of cylinder and end face.
Many details are elaborated in above description in order to fully understand the utility model, but, this practicality is new
Type can also be different from other modes described here to implement using other, it is thus impossible to be interpreted as protecting the utility model
Protect the limitation of scope.
In a word, although the utility model lists above-mentioned preferred embodiment, although it should be noted that the skill of this area
Art personnel can carry out various change and remodeling, unless such change and remodeling deviate from scope of the present utility model, otherwise
Should be construed as being included in protection domain of the present utility model.
Claims (9)
1. a kind of machine vision device for detecting cylindrical workpiece surface defect, it is characterised in that：Including roller transfer mould
Block (4), cylinder image-forming module (5) and end face image-forming module (6), the roller transfer module (4) is including for cylindrical workpiece
The inclined-plane of rolling, the cylinder image-forming module (5) includes cylinder high speed imaging camera, and the cylinder high speed imaging camera is positioned over
Inclined-plane top and view direction perpendicular to inclined-plane, the end face image-forming module (6) includes two end face high speed imaging cameras, described
Two end face high speed imaging cameras are respectively placed in inclined-plane both sides and view direction is relative.
2. the machine vision device for detecting cylindrical workpiece surface defect according to claim 1, it is characterised in that：
The cylinder image-forming module (5) includes cylinder light source, and the direction of illumination of cylinder light source is towards the inclined-plane.
3. the machine vision device for detecting cylindrical workpiece surface defect according to claim 1, it is characterised in that：
The end face image-forming module (6) includes two groups of end face light sources, and two groups of end face light sources are respectively placed in inclined-plane both sides and direction of illumination phase
It is right.
4. the machine vision device for detecting cylindrical workpiece surface defect according to claim 1, it is characterised in that：
Also include conveyer belt (1), the output end of the conveyer belt (1) is arranged on the upper end on the inclined-plane.
5. the machine vision device for detecting cylindrical workpiece surface defect according to claim 4, it is characterised in that：
Workpiece separating modules (3) are provided between the output end and inclined-plane of the conveyer belt (1), the workpiece separating modules (3) include
Movable push bar (31), shim, cam (32) and power set, movable push bar (31) lower end is in deadweight or reset element
Withstood under effect on the curved surface of the cam (32), the shim is connected to the upper end of movable push bar (31), the power dress
Put driving cam (32) rotation, when the cam (32) is rotated, the movable push bar (31) drive the shim opening or
Close transfer passage of the conveyer belt (1) between output end and inclined-plane.
6. the machine vision device for detecting cylindrical workpiece surface defect according to claim 1, it is characterised in that：
The tilt adjustable on the inclined-plane.
7. the machine vision device for detecting cylindrical workpiece surface defect according to any one of claim 1 to 6,
It is characterized in that：The roller transfer module (4) includes the electrostatic adsorption device that is arranged on inclined-plane.
8. the machine vision device for detecting cylindrical workpiece surface defect according to any one of claim 1 to 6,
It is characterized in that：The roller transfer module (4) includes the low pressure adsorbent device that is arranged on inclined-plane.
9. the machine vision device for detecting cylindrical workpiece surface defect according to claim 8, it is characterised in that：
The low pressure adsorbent device includes aspiration pump, vacuum layer (41) and breathable films (42), the breathable films (42) and inclined-plane
Upper surface forms the vacuum layer (41), and vacuum layer (41) is connected with the bleeding point of aspiration pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621120218.1U CN206208780U (en) | 2016-10-13 | 2016-10-13 | Machine vision device for detecting cylindrical workpiece surface defect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621120218.1U CN206208780U (en) | 2016-10-13 | 2016-10-13 | Machine vision device for detecting cylindrical workpiece surface defect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206208780U true CN206208780U (en) | 2017-05-31 |
Family
ID=58761158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621120218.1U Expired - Fee Related CN206208780U (en) | 2016-10-13 | 2016-10-13 | Machine vision device for detecting cylindrical workpiece surface defect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206208780U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106645184A (en) * | 2016-10-13 | 2017-05-10 | 广东理工学院 | Machine vision device for detecting surface defects of cylindrical workpiece and detection method |
| CN110018177A (en) * | 2019-04-25 | 2019-07-16 | 标景精密制造(苏州)有限公司 | A kind of detection of workpiece, defect and device for eliminating |
-
2016
- 2016-10-13 CN CN201621120218.1U patent/CN206208780U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106645184A (en) * | 2016-10-13 | 2017-05-10 | 广东理工学院 | Machine vision device for detecting surface defects of cylindrical workpiece and detection method |
| CN110018177A (en) * | 2019-04-25 | 2019-07-16 | 标景精密制造(苏州)有限公司 | A kind of detection of workpiece, defect and device for eliminating |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170531 Termination date: 20171013 |