CN202903691U - Line scanning visual inspection system for high-amplitude high-accuracy surface inspection - Google Patents
Line scanning visual inspection system for high-amplitude high-accuracy surface inspection Download PDFInfo
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- CN202903691U CN202903691U CN 201220614851 CN201220614851U CN202903691U CN 202903691 U CN202903691 U CN 202903691U CN 201220614851 CN201220614851 CN 201220614851 CN 201220614851 U CN201220614851 U CN 201220614851U CN 202903691 U CN202903691 U CN 202903691U
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Abstract
The utility model relates to a visual inspection system, which is mainly used for inspecting the appearance quality of high-precision punching elements. A line scanning visual inspection system for high-amplitude high-accuracy surface inspection comprises a drive belt system, a line scanning camera, a camera lens, a light source, a programmable controller, a computer and a sensor, wherein the computer is provided with visual inspection software and communication software of the programmable controller; the line scanning camera is a 4K line scanning camera; the connecting line of a central line of the line scanning camera and the central joint of the light source is vertical to a to-be-detected area of the drive belt system; the line scanning camera, the light source, a motor of the drive belt system and the sensor are all respectively connected with the programmable controller; and the line scanning camera is connected with the computer. The line scanning visual inspection system for high-amplitude high-accuracy surface inspection provided by the utility model can inspect the appearances of high-amplitude (with a width of 250mm) high-accuracy (with the inspection point achieving 0.06mm) products.
Description
Technical field
The utility model relates to a cover vision detection system, mainly applies to detect the presentation quality of high-accuracy stamping parts.
Background technology
Detection technique is the basis of workpiece, along with the development of science and technology, the quality requirements of product is improved constantly.And the traditional appearance detection is mainly manually.But the people has subjectivity, objective factor, causes the part defective products to flow into next technique.
Along with the rise of electron trade, at the hard disk of computer, the mechanical fitting in the products such as mobile phone adopts stamping parts in a large number.And every stamping machine will be produced a workpiece p.s. at least, has every day more than 80,000 workpiece to produce.
Since stamping parts in process of production, can occur greasy dirt, water stain, surface tear weighs wounded, hole blackout is got rusty, the appearance quality such as horsestone in the hole.The problem points such as the mode efficient of Traditional Man range estimation is low, eyes fatiguability, labour intensity height exist.Current nearly all company requires the product export qualification rate to reach 100%, and the traditional detection method is subject to the human factor impact, can not guarantee the qualification rate of product.So automatically detecting vision system must use in large tracts of land.But general vision system one by one product detects, and the efficient of vision system does not obtain very large embodiment.And Line-scanning Image Acquisition System can satisfy large format imaging (250 millimeters width), namely utilizes the existing cell-shell of manufacturer (250X400 millimeter)----can put into 50 products.Finish outward appearance and detect within 4 seconds, efficient per hour reaches 45000 products.But be limited to the restriction of precision, for large format, such as 250 millimeters width, present check point precision is 0.2 millimeter, still needs and further improves.
Summary of the invention
The purpose of this utility model is to provide a cover line sweep vision detection system, to satisfy large format high precision testing product demand.
Concrete technical scheme of the present utility model is:
A kind of line sweep vision detection system that the large format high-precision surface is detected, comprise conveyer belt system 5, line scan camera 2, camera lens 8, light source 7, Programmable Logic Controller 1, be equipped with vision detection software and with computer 4 and the sensor 11 of Programmable Logic Controller communication software;
Described line scan camera 2 is 4K line scan cameras, the line of the center line of line scan camera 2 and light source 7 centres joint and the regions perpendicular to be detected of conveyer belt system 5;
The motor of described line scan camera 2, light source 7, conveyer belt system 5, sensor 11 are connected with Programmable Logic Controller 1 respectively;
Described light source 7 is tunnel type line sweep light source, and the centre on its top is a wide slit of 3 millimeters, and the both sides, bottom are upwards irradiation of light emitting diode; The inwall of the cambered surface of light source body scribbles reflectorised paint; Be blank in the middle of the bottom; The light emitting diode wavelength of both sides, light source 7 bottom is identical.
Described conveyer belt system 5 is driven by inverter motor.
Described sensor 11 is photoelectric sensor.
Described Programmable Logic Controller 1 is connected with hub 3, can be connected with some computers 4 by hub 3.
During work, product to be detected 10 is placed on to be detected regional 9 of travelling belt 5; Light source 7 shines downwards, guarantees that product has enough brightness; Line scan camera 2 is installed the top, and line scan camera 2 center lines are vertical with travelling belt with the line of light source 7 centres joint; The position that sensor 11 testing products are all; Motor, the sensor 11 of line scan camera 2 trigger pips, light source 7, travelling belt 5 all are connected with Programmable Logic Controller 1, and everything is controlled by Programmable Logic Controller 1.The testing result of vision system sends to Programmable Logic Controller 1 by computer 4 by serial port protocol.
Image-forming principle of the present utility model is: when detected material average rate process under the camera, camera also carries out the line sweep imaging to detected material.Camera uses the line scan camera of 4K.Its measuring accuracy=width/every row pixel=250 millimeters/4000 pixel=0.0625 millimeter every pixel.Just can stablize judgement by three above pixels, so can detect the damage of 0.2 mm in size on the product or dirt, impurity.
Advantage of the present utility model:
1, can be widely used in automatic production line, accomplish not shut down online, carry out to the prosthetic intervention vision-based detection;
2, use the machine vision linear scanning system to replace manual detection;
3, under high speed detection, realize work in 24 hours;
4, can carry out 100% to product and detect, ex factory pass rate reaches 100%;
5, reduce production costs, an equipment is equivalent to 30 employees' workload;
6, can carry out seamless link with other travelling belts, satisfy most of client's Production requirement;
7, large format (250 millimeters width), high precision (check point reaches 0.06 millimeter) detects.
Description of drawings
Accompanying drawing 1 is the utility model structural representation.
In the above accompanying drawing: 1, Programmable Logic Controller, 2, line scan camera, 3, hub, 4, computer, 5, conveyer belt system, 6, testing product (discharging area), 7, light source, 8, camera lens, 9, detect in product (imaging area), 10, product to be detected (district to be checked), 11, sensor.
Embodiment
Below in conjunction with accompanying drawing and example the utility model is described:
Embodiment 1: shown in accompanying drawing 1, a kind of line sweep vision detection system that the large format high-precision surface is detected, comprise conveyer belt system 5, line scan camera 2, camera lens 8, light source 7, Programmable Logic Controller 1, be equipped with vision detection software and with computer 4 and the photoelectric sensor 11 of Programmable Logic Controller communication software;
Described line scan camera 2 is 4K line scan cameras, the line of the center line of line scan camera 2 and light source 7 centres joint and the regions perpendicular to be detected of conveyer belt system 5;
The motor of described line scan camera 2, light source 7, conveyer belt system 5, sensor 11 are connected with Programmable Logic Controller 1 respectively; Line scan camera 2 is connected with computer 4.
Described light source 7 is tunnel type line sweep light source, and the centre on its top is a wide slit of 3 millimeters, and the both sides, bottom are upwards irradiation of light emitting diode; The inwall of the cambered surface of light source body scribbles reflectorised paint; Be blank in the middle of the bottom; The light emitting diode wavelength of both sides, light source 7 bottom is identical.
Described conveyer belt system 5 is driven by inverter motor, is divided into testing product 6(discharging area by workshop section), product 9(imaging area in the detection), product 10(to be detected district to be checked).
Described Programmable Logic Controller 1 is connected with hub 3, is connected with some computers 4 by hub 3.
The utility model is successfully applied to multi-product with the line sweep vision detection system and detects simultaneously, and main the utilization by vision system carried out the outward appearance detection to stamping parts after grinding, and comprising: the surface weighs wounded, scratches; The surface is water stain; The hole blackout is got rusty; Hole inner burr etc.Its detection width is 250 millimeters, detects the theoretical infinite length of length.Precision is high, is 0.06 millimeter every pixel.Can be widely used in automatic production line, accomplish not shut down online, carry out to the prosthetic intervention vision-based detection; Use the machine vision linear scanning system to replace manual detection; Under high speed detection, realize work in 24 hours; Can carry out 100% to product and detect, ex factory pass rate reaches 100%; Reduce production costs widely, an equipment is equivalent to 30 employees' workload; And can carry out seamless link with other travelling belts, satisfy most of client's Production requirement; Most importantly the utility model can be to large format (250 millimeters width), and the product of high precision (check point reaches 0.06 millimeter) is done outward appearance and detected.
Claims (5)
1. line sweep vision detection system that the large format high-precision surface is detected, comprise conveyer belt system, line scan camera, camera lens, light source, Programmable Logic Controller, be equipped with vision detection software and with computer and the sensor of Programmable Logic Controller communication software; It is characterized in that,
Described line scan camera is the 4K line scan camera, the line of the center line of line scan camera and the light source centre joint and the regions perpendicular to be detected of conveyer belt system;
The motor of described line scan camera, light source, conveyer belt system, sensor are connected with Programmable Logic Controller respectively;
Line scan camera is connected with computer.
2. a kind of line sweep vision detection system that the large format high-precision surface is detected according to claim 1, it is characterized in that, described light source is tunnel type line sweep light source, and the centre on its top is a wide slit of 3 millimeters, and the both sides, bottom are upwards irradiation of light emitting diode; The inwall of the cambered surface of light source body scribbles reflectorised paint; Be blank in the middle of the bottom; The light emitting diode wavelength of both sides, light source bottom is identical.
3. a kind of line sweep vision detection system that the large format high-precision surface is detected according to claim 1 is characterized in that described conveyer belt system is driven by inverter motor.
4. a kind of line sweep vision detection system that the large format high-precision surface is detected according to claim 1 is characterized in that described sensor is photoelectric sensor.
5. a kind of line sweep vision detection system that the large format high-precision surface is detected according to claim 1 is characterized in that described Programmable Logic Controller is connected with hub, is connected with some computers by hub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220614851 CN202903691U (en) | 2012-11-20 | 2012-11-20 | Line scanning visual inspection system for high-amplitude high-accuracy surface inspection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220614851 CN202903691U (en) | 2012-11-20 | 2012-11-20 | Line scanning visual inspection system for high-amplitude high-accuracy surface inspection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202903691U true CN202903691U (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220614851 Expired - Fee Related CN202903691U (en) | 2012-11-20 | 2012-11-20 | Line scanning visual inspection system for high-amplitude high-accuracy surface inspection |
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| CN (1) | CN202903691U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105783727A (en) * | 2016-05-04 | 2016-07-20 | 成都贝森伟任科技有限责任公司 | Improved metal plate surface detection device |
| CN106153630A (en) * | 2015-04-27 | 2016-11-23 | 昆山市和博电子科技有限公司 | Chip-R detection device |
| CN110400502A (en) * | 2019-07-26 | 2019-11-01 | 邵东智能制造技术研究院有限公司 | Machine vision teaching platform |
-
2012
- 2012-11-20 CN CN 201220614851 patent/CN202903691U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106153630A (en) * | 2015-04-27 | 2016-11-23 | 昆山市和博电子科技有限公司 | Chip-R detection device |
| CN105783727A (en) * | 2016-05-04 | 2016-07-20 | 成都贝森伟任科技有限责任公司 | Improved metal plate surface detection device |
| CN110400502A (en) * | 2019-07-26 | 2019-11-01 | 邵东智能制造技术研究院有限公司 | Machine vision teaching platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20131120 |