CN212483391U - Product defect detection device based on machine vision - Google Patents
Product defect detection device based on machine vision Download PDFInfo
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- CN212483391U CN212483391U CN202020914188.1U CN202020914188U CN212483391U CN 212483391 U CN212483391 U CN 212483391U CN 202020914188 U CN202020914188 U CN 202020914188U CN 212483391 U CN212483391 U CN 212483391U
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- workbench
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- defect detection
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- 238000001514 detection method Methods 0.000 title claims abstract description 21
- 230000007547 defect Effects 0.000 title claims abstract description 17
- 238000007599 discharging Methods 0.000 claims abstract description 9
- 238000003475 lamination Methods 0.000 abstract 1
- 239000000047 product Substances 0.000 description 52
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 208000003464 asthenopia Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The utility model discloses a product defect detection device based on machine vision, which belongs to the technical field of product defect detection and comprises a base, wherein a workbench is arranged on the base, a feeding part is arranged on one side of the workbench, a discharging part is arranged on one side of the feeding part opposite to the workbench, an image acquisition part and a light source are arranged above the workbench, the base is provided with a fixed column, the image acquisition part slides up and down on the fixed column, a positioning part is also arranged above the workbench and is fixedly connected with the fixed column through a bracket, a roller is arranged between the workbench and the feeding part, the cross section of the roller is in a Leluo triangle shape, the roller is connected with a power output shaft of a stepping motor, a pressure sensor is arranged on the positioning part, a conveying belt is arranged on the upper surface of the workbench, the utility model avoids product lamination, the collecting effect is good, and the height of the image collecting part can be adjusted.
Description
Technical Field
The utility model relates to a product defect detection device, especially a product defect detection device based on machine vision for product defect detects technical field.
Background
With the development of industrial production, the requirement on production efficiency is higher and higher, so that the rapid development of an automatic technology is promoted, and the detection link of most products in the market after finished products are produced still stays at the degree of manual detection. Because the human eye detects, the easy tired condition that leads to taking place to miss of inspector's eyes, and the manual detection subjectivity is big, and the judgement standard when detecting some small-size products (like part, the plastic product of surperficial unevenness) is not unified, has reduced the reliability that the product detection quality is controlled, and miss detection and false detection condition often take place, and the detection cost has also been increased when work efficiency is low. In traditional visual detection process, generally adopt artifical flesh and eyes to see, cause visual fatigue very easily, and hardly detect the accuracy, CCD camera and computer come to handle the contrast to the image that the camera gathered, discover the defect of product, have practiced thrift a large amount of times of people, have improved production efficiency, and the image acquisition scope of a check out test set is difficult to adjust and can not be used in the detection of multiple model product.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that needs to solve provides a product defect detection device based on machine vision that the image acquisition scope is convenient for adjust.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
the utility model provides a product defect detection device based on machine vision which characterized in that: the automatic feeding device comprises a base, and is characterized in that a workbench is arranged on the base, a feeding portion is arranged on one side of the workbench, a discharging portion is arranged on one side of the feeding portion, an image collecting portion and a light source are arranged above the workbench, the base is provided with a fixed column, the image collecting portion is arranged on the fixed column in a sliding mode, a positioning portion is further arranged above the workbench and fixedly connected with the fixed column through a support, a roller is arranged between the workbench and the feeding portion, the cross section of the roller is of a Lelo triangle shape, the roller is connected with a power output shaft of a stepping motor, a pressure sensor is arranged on the positioning portion, and a conveying belt is arranged on the upper surface of the workbench.
The utility model discloses technical scheme's further improvement lies in: the image acquisition part comprises an industrial camera and a top plate, the industrial camera is fixed on the lower surface of the top plate, a sliding block is fixed at one end of the top plate, a sliding groove is arranged on the fixed column in a matched mode, the sliding block slides along the sliding groove, the light source is fixedly connected with the top plate through a connecting piece, and the light source is annular.
The utility model discloses technical scheme's further improvement lies in: the positioning part comprises a telescopic cylinder fixed on the support and a positioning plate fixedly connected with a power output end of the telescopic cylinder, and the positioning plate is provided with the pressure sensor.
The utility model discloses technical scheme's further improvement lies in: the feeding portion with the discharging portion is the conveyer belt, the conveyer belt both sides are provided with the baffle.
Due to the adoption of the technical scheme, the invention has the technical progress that:
the product to be detected is conveyed to the surface of the workbench through the roller arranged between the feeding part and the workbench, the roller is driven by the stepping motor to convey only one product to be detected each time, the roller separates the products to be detected with too short distance, whether the products reach the designated position is detected through the positioning part, the products enter the designated position after the products to be detected on the workbench trigger the pressure sensor of the positioning part, the image acquisition part starts to work, the image acquisition part can move up and down to adjust the acquisition height of the image acquisition part according to the size of the products, and the products of various models can be detected conveniently; the image acquisition part comprises an industrial camera and a top plate, the industrial camera is used for acquiring images, the industrial camera is fixed on the top plate and moves along with the top plate, the top plate moves up and down in a sliding groove of the fixed column through a sliding block, the phenomenon that the operation track of the industrial camera is inclined to acquire image distortion is avoided, and a light source is fixedly connected to the top plate and used for supplementing light for the industrial camera; the positioning part comprises a telescopic cylinder and a positioning plate, a pressure sensor arranged on the positioning plate is used for judging the position of a product to be detected, and the telescopic cylinder drives the positioning plate to fall on the surface of the workbench. The feeding portion and the discharging portion are convenient for controlling the product conveying speed of the conveyor belt, and baffles are arranged on two sides of the conveyor belt to prevent products from falling down.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a top view of the present invention;
wherein, 1, a base; 2. a work table; 3. a feeding section; 4. a discharge part; 5. an image acquisition unit; 6. a light source; 7. a positioning part; 8. fixing a column; 9. a roller; 10. a support; 51. an industrial camera; 52. a top plate; 11. A baffle plate; 12. a slider; 13. a telescopic cylinder; 14. and (7) positioning the plate.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
as shown in fig. 1 and 2, a product defect detecting device based on machine vision comprises a feeding part 3, a discharging part 4, an image collecting part 5, a positioning part 7, a base 1 and a workbench 2. Workstation 2 sets up on base 1, 2 left and right sides of workstation are provided with feeding portion 3 and ejection of compact portion 4, image acquisition portion 5 sets up in workstation 2 top, still be provided with fixed column 8 on the base 1, fixed column 8 is located 2 one sides of workstation, image acquisition portion 5 includes industry camera 51 and roof 52, industry camera 51 is fixed at roof 52 lower surface, roof 52 one end is provided with slider 12, what correspond is provided with the spout on fixed column 8, slider 12 can slide in the spout, slider 12 drives roof 52 and then drives industry camera 51 and reciprocate the height that can adjust industry camera 51, the scope of being convenient for adjust image acquisition adapts to the image acquisition demand of not co-altitude and not big or small product.
In a further embodiment, the light source 6 is disposed below the industrial camera 51, the light source 6 includes a circular lamp holder and an LED lamp fixed on the lamp holder, the circular lamp holder is fixed on the sidewall of the top plate 52 through a connecting member, the connecting member is a hard rod or a hard plate, one end of the connecting member is fixedly connected to the top plate 52, and the other end of the connecting member is fixedly connected to the circular lamp holder. The LED lamps are uniformly distributed on the circular lamp holder to illuminate the product, so that the shadow area on the surface of the product is reduced, and the product is sufficiently supplemented with light to be convenient for the industrial camera 51 to shoot. The positioning portion 7 is fixed with the fixing column 8 through the support 10, the positioning portion 7 comprises a telescopic cylinder 13 and a positioning plate 14, the telescopic cylinder 13 is fixed on the support 10, the power output end of the telescopic cylinder 13 is fixedly connected with the positioning plate 14, the telescopic cylinder 13 drives the positioning plate 14 to ascend or descend, a pressure sensor is arranged on the positioning plate 14, and the industrial camera 51 is started to collect a product image after a product to be detected triggers the pressure sensor. The positioning plate 14 enables the pressure sensor to be started only after the product enters the designated position, so that image acquisition is performed, the position of the product is convenient to control, and the industrial camera 51 is convenient to acquire a complete product image. The feeding portion 3 and the discharging portion 4 are conveying belts, baffle plates 11 are arranged on two sides of the conveying belts and used for preventing products from being separated from the conveying belts to protect the products, and the baffle plates 11 can be made of rubber for supporting. Set up roller 9 between feed portion 3 and workstation 2, roller 9's cross sectional shape is the triangle-shaped of reluo, and roller 9 receives step motor drive, and roller 9 conveys a product to workstation 2 and goes up the arris of back roller 9 and upwards block the conveyer belt of feed portion 3 and carry follow-up product to workstation 2. The upper surface of the working table 2 is provided with a conveyor belt for moving the product to be detected to the discharging part 4.
Working principle or using method:
the conveyor belt of the feeding part 3 is started, the conveyor belt conveys a product to be detected to the roller 9, the roller 9 is driven by the stepping motor to rotate so as to convey the product to be detected to the upper surface of the workbench 2, the product to be detected contacts the positioning plate 14, the pressure sensor is triggered so as to start the industrial camera 51 to collect images of the product, the light source 6 is started to supplement the light for the product, the data is transmitted to the computer for machine vision identification after the image collection of the product is completed, through standard image and the image comparison of gathering, judge whether the product has the defect, if the product is qualified, telescopic cylinder 13 drives locating plate 14 and rises, and the conveyer belt of 2 upper surfaces of workstation starts on conveying the conveyer belt of product conveying to ejection of compact portion 4, and the product is carried to ejection of compact portion 4, and telescopic cylinder 13 drives locating plate 14 and descends to 2 upper surfaces of workstation, and step motor drives roller 9 once more and rotates and carry out next cycle operation. And if the product is unqualified, the computer stores the product image and sends out an alarm prompt, and the staff carries out defect repair on the unqualified product.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (4)
1. The utility model provides a product defect detection device based on machine vision which characterized in that: a working table (2) is arranged on a base (1), a feeding part (3) is arranged on one side of the working table (2), a discharging part (4) is arranged on one side of the working table (2) opposite to the feeding part (3), an image acquisition part (5) and a light source (6) are arranged above the working table (2), a fixed column (8) is arranged on the base (1), the image acquisition part (5) is arranged on the fixed column (8) in a sliding manner, a positioning part (7) is also arranged above the working table (2), the positioning part (7) is fixedly connected with the fixed column (8) through a support (10), a roller (9) is arranged between the working table (2) and the feeding part (3), the cross section of the roller (9) is in a Leluo triangle shape, the roller (9) is connected with a power output shaft of a stepping motor, and a pressure sensor is arranged on the positioning part (7), and a conveyor belt is arranged on the upper surface of the workbench (2).
2. The machine vision-based product defect detection device of claim 1, wherein: the image acquisition part (5) comprises an industrial camera (51) and a top plate (52), the industrial camera (51) is fixed to the lower surface of the top plate (52), a sliding block (12) is fixed to one end of the top plate (52), a sliding groove is arranged on the fixed column (8) in a matched mode, the sliding block (12) slides along the sliding groove, the light source (6) is fixedly connected with the top plate (52) through a connecting piece, and the light source (6) is circular.
3. The machine vision-based product defect detection device of claim 1, wherein: the positioning part (7) comprises a telescopic cylinder (13) fixed on the support (10) and a positioning plate (14) fixedly connected with the power output end of the telescopic cylinder (13), and the pressure sensor is arranged on the positioning plate (14).
4. The machine vision-based product defect detection device of claim 1, wherein: the feeding part (3) and the discharging part (4) are conveyor belts, and baffles (11) are arranged on two sides of each conveyor belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020914188.1U CN212483391U (en) | 2020-05-27 | 2020-05-27 | Product defect detection device based on machine vision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020914188.1U CN212483391U (en) | 2020-05-27 | 2020-05-27 | Product defect detection device based on machine vision |
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| Publication Number | Publication Date |
|---|---|
| CN212483391U true CN212483391U (en) | 2021-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020914188.1U Expired - Fee Related CN212483391U (en) | 2020-05-27 | 2020-05-27 | Product defect detection device based on machine vision |
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| Country | Link |
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| CN (1) | CN212483391U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114062262A (en) * | 2021-09-24 | 2022-02-18 | 贵州大学 | Annular light source-oriented multi-view capsule defect detection device |
-
2020
- 2020-05-27 CN CN202020914188.1U patent/CN212483391U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114062262A (en) * | 2021-09-24 | 2022-02-18 | 贵州大学 | Annular light source-oriented multi-view capsule defect detection device |
| CN114062262B (en) * | 2021-09-24 | 2023-08-11 | 贵州大学 | Multi-view capsule defect detection device facing annular light source |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210205 |
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| CF01 | Termination of patent right due to non-payment of annual fee |