CN203216453U - Machine vision-based automatic detection device for positions of hard disk magnets - Google Patents
Machine vision-based automatic detection device for positions of hard disk magnets Download PDFInfo
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- CN203216453U CN203216453U CN 201320109933 CN201320109933U CN203216453U CN 203216453 U CN203216453 U CN 203216453U CN 201320109933 CN201320109933 CN 201320109933 CN 201320109933 U CN201320109933 U CN 201320109933U CN 203216453 U CN203216453 U CN 203216453U
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Abstract
The utility model relates to a machine vision-based automatic detection device for positions of hard disk magnets, belonging to product detection devices. The detection device is mainly composed of an image acquisition unit, a movement control unit and an image processing unit (an industrial control computer), wherein the image acquisition unit is composed of a camera, an lens, a light source and an image acquisition card, the image acquisition card is mounted in the industrial control computer, the camera is connected with the industrial control computer via a 1394 cable, and the movement control unit comprises an XY platform, an XY platform controller and a PLC (Programmable Logic Controller). A safe raster generates a protective light curtain by emitting infrared rays, and when the light curtain is shielded, the device emits shading signals to stop mechanical equipment from working, thereby avoiding accidents; and a pallet is used for accommodating the hard disk magnets whose scale is 3*10. The detection device of the utility model can carry out rapid and accurate automatic detection on positions of the hard disk magnets.
Description
Technical field
The utility model relates to a kind of hard disk magnet positions degree automatic detection device based on machine vision, is used for the online detection to hard disk magnet positions degree, belongs to the product detection range.
Background technology
The hard disk magnet is indispensable part in the hard disk, and it can form magnetic field, utilizes this magnetic field to drive reading-writing arm in the hard disk, so the position degree of magnet can have influence on the formation in magnetic field, thereby influence influences the reading and writing data of hard disk to the driving of reading-writing arm.In the industrial processes process, unavoidable because odjective cause causes the skew of magnet positions, the method for traditional contact manual detection not only loaded down with trivial details, labour intensity is big, and detection speed is slower, can not eliminate artificial measuring error.Also may cause certain damage to object surfaces in testing process, the requirement of this and the desired on-line quick detection of modern industry is not inconsistent.
The machine vision checking system has obvious superiority than the people, because people easily fatigue, carelessness, instability, and mechanical vision inspection technology has characteristics such as noncontact, real-time, online, precision height, has obtained development rapidly and application widely in recent years.
The position degree of hard disk magnet is to reflect indirectly by the distance of measuring three the regulation points in magnet edge and reference point, detects the position degree of magnet with machine vision technique, can improve the accuracy rate of detection and speed, reduction manual detection cost.
The utility model content
The utility model is by the following technical solutions:
Hard disk magnet positions degree pick-up unit mainly is made of image capture device, motion control unit, graphics processing unit (industrial computer).
Image capture device is made up of camera, camera lens, light source and image pick-up card, and wherein image pick-up card is installed in industrial computer inside, and camera links to each other with industrial computer by 1394cable.
By component movement control modules such as XY platform, XY platform controller and PLC.
Safe grating produces protection light curtain by the emission infrared ray, and when the light curtain was blocked, device sent shielding signals, and the control plant equipment quits work, and avoids taking place security incident; Pallet is used for placing the hard disk magnet, and scale is 3 * 10, by from top to bottom order number consecutively 1-30 from left to right.
The utility model detects the position degree of magnet with machine vision technique, can improve the accuracy rate of detection and speed, reduction manual detection cost.
Description of drawings
Fig. 1 is hard disk magnet detection point position view.
Fig. 2 is the hard disk magnet positions degree automatic detection device structural drawing based on machine vision.
Fig. 3 is the automatic testing process figure of hard disk magnet positions degree.
In the accompanying drawing 1, Pt1, Pt2 and Pt3 are three points on the magnet edge, and A (1.28,2.22) is reference point, and straight line AB crosses reference point, with the Y-axis angle be 68.37 °; Straight line AC and Y-axis angle are 26.57 °.Pt1 is the intersection point of magnet edge and straight line X=0.62, and Pt2 is the intersection point of magnet edge and straight line AC, and Pt3 is the intersection point of magnet edge and straight line AB.
Numbering 1 is display, the 2nd in the accompanying drawing 2, industrial computer, the 3rd, image pick-up card, the 4th, PLC, the 5th, CCD camera, the 6th, camera lens, the 7th, light source, the 8th, product, the 9th, XY platform.
Embodiment
Be described further below in conjunction with the embodiment of accompanying drawing to the utility model pick-up unit.
(1) pallet that will fill product is put on the anchor clamps of XY platform, leave worktable by grating induction is in one's hands after, the XY platform moves to the vision system below with product;
(2) put in place when the XY platform, trigger image collecting device and gather image, and by image pick-up card image is transferred to graphics processing unit;
(3) after image processing software mates location, rotation of coordinate, searches edge etc. and handle product image of gathering in (2), by man-machine interface position degree testing result is presented on the PC.
(4) check out a product whenever, XY does corresponding movement all products detections on pallet and finishes;
(5) detection finishes, and the XY platform is sent product, chooses defective products according to testing result.
The utility model proving installation can carry out fast hard disk magnet positions degree, accurately detect.
It more than is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all belongs in the scope of utility model technical scheme any simple modification, equivalent variations and modification that above embodiment does.
Claims (3)
1. based on the hard disk magnet positions degree automatic detection device of machine vision, it is characterized in that: pick-up unit mainly is made of image capture device, motion control unit, graphics processing unit.
2. the hard disk magnet positions degree automatic detection device based on machine vision according to claim 1, it is characterized in that, described image capture device is made up of camera, camera lens, light source and image pick-up card, wherein image pick-up card is installed in graphics processing unit inside, and camera links to each other with industrial computer by 1394cable; By component movement control modules such as XY platform, XY platform controller, safe grating and PLC.
3. the hard disk magnet positions degree automatic detection device based on machine vision according to claim 1; it is characterized in that; safe grating is by the emission infrared ray; produce protection light curtain; when the light curtain is blocked; device sends shielding signals and gives PLC, and PLC control plant equipment quits work, and avoids taking place security incident.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320109933 CN203216453U (en) | 2013-03-11 | 2013-03-11 | Machine vision-based automatic detection device for positions of hard disk magnets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320109933 CN203216453U (en) | 2013-03-11 | 2013-03-11 | Machine vision-based automatic detection device for positions of hard disk magnets |
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| Publication Number | Publication Date |
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| CN203216453U true CN203216453U (en) | 2013-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320109933 Expired - Fee Related CN203216453U (en) | 2013-03-11 | 2013-03-11 | Machine vision-based automatic detection device for positions of hard disk magnets |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106662428A (en) * | 2016-11-19 | 2017-05-10 | 弗埃斯工业技术（苏州）有限公司 | Location degree measuring device used for keycap of laptop host |
| CN108918423A (en) * | 2018-06-25 | 2018-11-30 | 江苏双良低碳产业技术研究院有限公司 | A kind of safety system for the detection of open laser gas |
| CN111283013A (en) * | 2020-02-10 | 2020-06-16 | 青岛滨海学院 | Machine vision-based pipe bender ball head detection system and detection method |
| CN112432957A (en) * | 2020-12-10 | 2021-03-02 | 苏州特斯捷电子科技有限公司 | Tin ball automatic check out system |
-
2013
- 2013-03-11 CN CN 201320109933 patent/CN203216453U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106662428A (en) * | 2016-11-19 | 2017-05-10 | 弗埃斯工业技术（苏州）有限公司 | Location degree measuring device used for keycap of laptop host |
| CN108918423A (en) * | 2018-06-25 | 2018-11-30 | 江苏双良低碳产业技术研究院有限公司 | A kind of safety system for the detection of open laser gas |
| CN111283013A (en) * | 2020-02-10 | 2020-06-16 | 青岛滨海学院 | Machine vision-based pipe bender ball head detection system and detection method |
| CN112432957A (en) * | 2020-12-10 | 2021-03-02 | 苏州特斯捷电子科技有限公司 | Tin ball automatic check out system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WUXI IMV INDUSTRIAL CONTROL EQUIPMENT CO., LTD. Free format text: FORMER OWNER: JIANGNAN UNIVERSITY Effective date: 20140623 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Pan Feng Inventor after: Yang Li Inventor after: Wang Zhenyu Inventor after: Wang Zhenxi Inventor before: Pan Feng Inventor before: Yang Li |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: PAN FENG YANG LI TO: PAN FENG YANG LI WANG ZHENYU WANG ZHENXI Free format text: CORRECT: ADDRESS; FROM: 214122 WUXI, JIANGSU PROVINCE TO: 214131 WUXI, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140623 Address after: 214131,, west side, building B1, No. 999 High East Road, Binhu District, Jiangsu, China Patentee after: Wuxi IMV Industrial Control Equipment Co., Ltd. Address before: 214122 Jiangsu Province, Wuxi City Lake Road No. 1800, Jiangnan University Patentee before: Jiangnan University |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20150311 |
|
| EXPY | Termination of patent right or utility model |