CN111077169A - Curved glass flaw detection method - Google Patents
Curved glass flaw detection method Download PDFInfo
- Publication number
- CN111077169A CN111077169A CN202010004127.6A CN202010004127A CN111077169A CN 111077169 A CN111077169 A CN 111077169A CN 202010004127 A CN202010004127 A CN 202010004127A CN 111077169 A CN111077169 A CN 111077169A
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- product
- cleaning
- feeding
- flaw
- ccd detector
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- 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
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/958—Inspecting transparent materials or objects, e.g. windscreens
Abstract
The invention relates to a curved glass flaw detection method, which comprises the following steps: 1) conveying the product to be detected to the lower part of the CCD detector; 2) shooting the product through a CCD detector, transmitting the picture out, and then judging whether the product has defects or not through comparing the picture; 3) the 2) step judgement is when not having the flaw, slope around going on the product and control the slope, and at the slope in-process, carry out the processing of making a video recording to the product once more through the CCD detector, and spread the picture, judge whether the product has the flaw through comparing the picture, the product photo of keeping flat through shooting tentatively detects out the product that obviously has the flaw, through slope around and control the slope to the product, the cooperation CCD detector is shot the product that inclines, so can further detect whether the product has the flaw through the photo, so can realize the accurate detection of curved surface glass flaw.
Description
Technical Field
The invention relates to the field of glass detection, in particular to a curved surface glass flaw detection method.
Background
Fig. 2 shows a common curved glass, after the processing of the curved glass is completed, the flaw detection needs to be performed on the curved glass, whether burrs or cracks exist as a main item of detection, most of the main items are camera shooting comparison by using a camera assembly, but the camera shooting comparison is limited to only shooting a flat photo, so that a blind area and an inaccurate judgment situation may exist during the detection, and therefore a method capable of realizing the accurate flaw detection of the curved glass is urgently needed.
Disclosure of Invention
The invention aims to provide a method for detecting defects of curved glass, which is characterized in that a product with obvious defects is preliminarily detected by shooting a picture of a flat product, and the inclined product is shot by matching a CCD (charge coupled device) detector through the front-back inclination and the left-right inclination of the product, so that whether the product has defects can be further detected through a picture ratio, and the defects of the curved glass can be accurately detected.
In order to achieve the above purpose, the invention adopts the technical scheme that: a curved glass flaw detection method comprises the following steps:
1) conveying the product to be detected to the lower part of the CCD detector;
2) shooting the product through a CCD detector, transmitting the picture out, and then judging whether the product has defects or not through comparing the picture;
3) and 2) when judging that no flaw exists, tilting the product back and forth and left and right, in the tilting process, carrying out camera shooting processing on the product again through the CCD detector, transmitting the picture out, and judging whether the product has the flaw or not by comparing the picture.
Preferably, before the CCD detector performs image pickup in the step 2), the product is cleaned by means of water liquid vibration.
The other technical scheme of the invention is as follows: the utility model provides an equipment that curved surface glass flaw detection method adopted, includes the conveyer trough, conveyer trough top be provided with the upper bracket, upper bracket below be provided with product complex product feeding device, upper bracket below still be provided with visual detection installation piece, the below of visual detection installation piece become the matrix and install the CCD detector, the conveyer trough lower part of CCD detector below be provided with the adjusting device that enables the product slope in the conveyer trough.
Preferably, adjusting device including setting up the detection liftout cylinder in the conveyer trough below, the detection liftout cylinder can pass the conveyer trough, and its one end that penetrates the conveyer trough is connected with and detects the liftout sucking disc with product complex, the quantity that detects the liftout cylinder be four, squarely distribute.
Preferably, the product feeding device comprises a feeding movable cylinder arranged between the upper frame and the visual detection mounting block, the feeding movable cylinder is connected with a feeding movable block, a feeding lifting cylinder is arranged below the feeding movable block, a feeding lifting block is connected below the feeding lifting cylinder, and a feeding pushing block matched with a product is connected below the feeding lifting block.
Preferably, the middle part of the conveying groove is provided with a cleaning matching opening, a cleaning frame is matched below the cleaning matching opening, a cleaning material receiving block is connected in the cleaning frame through a cleaning lifting cylinder, the size of the cleaning material receiving block is matched with that of the cleaning matching opening, a cleaning water hole is formed in the cleaning material receiving block, a cylinder sealing sleeve is sleeved on the periphery of the cleaning lifting cylinder, and a vibration generator is arranged at the bottom in the cleaning frame.
The invention has the beneficial effects that:
1. the product that keeps flat through shooting tentatively detects out the product that obviously has the flaw, through slope around to the product with control the slope, cooperation CCD detector shoots the product that inclines, so can be through the photo than can further detect the product whether have the flaw, so can realize the accurate detection of curved surface glass flaw.
2. The design of the water washing step can avoid the influence of the attached impurities on the detection accuracy during detection, and eliminate the false flaw caused by the attached matters.
3. The design of the detection equipment can realize continuous product flaw detection, and further can improve the detection efficiency.
4. Due to the structural design of the adjusting device, the product can be ensured to be well inclined and adjusted, and the condition of collision in the inclined process is avoided.
5. The design of the cleaning device can be matched with the conveying groove, continuous cleaning and flaw detection are achieved, and the detection efficiency is greatly improved.
Drawings
FIG. 1 is a schematic structural diagram of an apparatus used in a curved glass flaw detection method;
FIG. 2 is a side view of the product;
FIG. 3 is a schematic structural diagram of an adjusting device;
FIG. 4 is a schematic view of the structure of the product feeding apparatus;
fig. 5 is a schematic structural view of the cleaning apparatus.
The text labels shown in the figures are represented as: 1. a conveying trough; 2. producing a product; 3. putting on a shelf; 4. a product feed device; 5. a cleaning device; 6. a visual inspection mounting block; 7. a CCD detector; 8. detecting a material ejection cylinder; 9. detecting a material ejecting sucker; 11. feeding the movable cylinder; 12. feeding the movable block; 13. feeding a lifting cylinder; 14. feeding the lifting block; 15. feeding a pushing block; 21. cleaning the matching port; 22. cleaning the frame; 23. a vibration generator; 24. cleaning a lifting cylinder; 25. a cylinder seal sleeve; 26. cleaning the material receiving block; 27. and cleaning water holes.
Detailed Description
The following detailed description of the present invention is given for the purpose of better understanding technical solutions of the present invention by those skilled in the art, and the present description is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.
Example 1
As shown in fig. 1 to 4, the specific structure of the present invention is: the utility model provides an equipment that curved surface glass flaw detection method adopted, includes conveyer trough 1, 1 top of conveyer trough be provided with upper bracket 3, 3 below of upper bracket be provided with product 2 complex product feed arrangement 4, 3 below of upper bracket still be provided with visual detection installation piece 6, the below of visual detection installation piece 6 become the matrix and install CCD detector 7, 1 lower part of conveyer trough below of CCD detector 7 be provided with the adjusting device that enables the product slope in the conveyer trough 1.
Adjusting device including setting up the detection liftout cylinder 8 in conveyer trough 1 below, detection liftout cylinder 8 can pass conveyer trough 1, and its one end that penetrates conveyer trough 1 is connected with and detects liftout sucking disc 9 with product 2 complex, the quantity of detection liftout cylinder 8 be four, square distribution.
The product feeding device 4 comprises a feeding movable cylinder 11 arranged between the upper frame 3 and the visual detection mounting block 6, the feeding movable cylinder 11 is connected with a feeding movable block 12, a feeding lifting cylinder 13 is arranged below the feeding movable block 11, a feeding lifting block 14 is connected below the feeding lifting cylinder 13, and a feeding pushing block 15 matched with the product 2 is connected below the feeding lifting block 14.
The method for detecting the flaws of the curved glass by adopting the equipment comprises the following steps:
1) placing the product 2 to be detected on the conveying groove 1, pushing the product 2 to a station by one of the product push blocks 15 through the synergistic action of the product feeding cylinder 11 and the product lifting cylinder 13, then placing the next product 2 to be detected, moving the first product and the second product to the station through the re-feeding operation of the product feeding device 4, and repeating the operation until the first product enters the position below the CCD detector 7;
2) the CCD detector 7 is used for shooting the product 2 entering the lower part of the computer and transmitting pictures out, generally, the pictures are directly transmitted to a computer, then a comparison system in the computer or manual comparison is used for judging whether the product has defects or not, if the product has defects, the product is directly determined to be unqualified and fed out through the feeding device 4, and if the product has no defects, the next step is carried out;
3) step 2) when the product is judged to have no flaw, the ejection detection air cylinder 8 is extended, the ejection detection sucker 9 is made to be attached to the product, then the product 2 is inclined left and right and front and back through different extension amounts of the four ejection detection air cylinders 8, the CCD detector 7 is used for shooting pictures in the inclined process, the pictures are transmitted out, generally, the pictures are directly transmitted to a computer, and then the comparison system in the computer or manual comparison is used for judging whether the product has the flaw; therefore, products which are preliminarily detected in the step 2) and have no flaw can be rechecked again, and the detection accuracy is ensured.
Example 2
As shown in fig. 1 to 5, the specific structure of the present invention is: the utility model provides an equipment that curved surface glass flaw detection method adopted, includes conveyer trough 1, 1 top of conveyer trough be provided with upper bracket 3, 3 below of upper bracket be provided with product 2 complex product feed arrangement 4, 3 below of upper bracket still be provided with visual detection installation piece 6, the below of visual detection installation piece 6 become the matrix and install CCD detector 7, 1 lower part of conveyer trough below of CCD detector 7 be provided with the adjusting device that enables the product slope in the conveyer trough 1.
Adjusting device including setting up the detection liftout cylinder 8 in conveyer trough 1 below, detection liftout cylinder 8 can pass conveyer trough 1, and its one end that penetrates conveyer trough 1 is connected with and detects liftout sucking disc 9 with product 2 complex, the quantity of detection liftout cylinder 8 be four, square distribution.
The product feeding device 4 comprises a feeding movable cylinder 11 arranged between the upper frame 3 and the visual detection mounting block 6, the feeding movable cylinder 11 is connected with a feeding movable block 12, a feeding lifting cylinder 13 is arranged below the feeding movable block 11, a feeding lifting block 14 is connected below the feeding lifting cylinder 13, and a feeding pushing block 15 matched with the product 2 is connected below the feeding lifting block 14.
The middle part of the conveying groove 1 is provided with a cleaning matching opening 21, a cleaning frame 22 is matched below the cleaning matching opening 21, a cleaning material receiving block 26 is connected in the cleaning frame 22 through a cleaning lifting cylinder 24, the size of the cleaning material receiving block 26 is matched with that of the cleaning matching opening 21, a cleaning water hole 27 is formed in the cleaning material receiving block 26, a cylinder sealing sleeve 25 is sleeved on the periphery of the cleaning lifting cylinder 24, and a vibration generator 23 is arranged at the inner bottom of the cleaning frame 22.
The method for detecting the flaws of the curved glass by adopting the equipment comprises the following steps:
1) placing the product 2 to be detected on the conveying groove 1, pushing the product 2 to a station by one of the product push blocks 15 through the cooperation of the product feeding cylinder 11 and the product lifting cylinder 13, then placing the next product 2 to be detected, moving the first product and the second product to one station through the re-feeding operation of the product feeding device 4, and repeating the operation until the first product is positioned at the cleaning matching opening 21 and is received by the cleaning receiving block 26;
2) the cleaning material receiving block 26 is driven to descend by the cleaning lifting cylinder 24, so that the product descends together with the cleaning material receiving block and falls into the water liquid of the cleaning frame 22, then the vibration generator 23 in the cleaning frame 22 generates vibration to enable the water liquid to vibrate, so that impurities which can be attached to the product are cleaned, then the cleaning material receiving block 26 is driven to ascend by the cleaning lifting cylinder 24, so that the product is separated from the water liquid, then the product is kept stand for 5-10 minutes, so that the water liquid attached to the product is basically separated from the product and falls into the cleaning frame 22 from the cleaning water hole 27, and then the product is fed below the CCD detector 7 by the product feeding device 4;
3) the CCD detector 7 is used for shooting the product 2 entering the lower part of the computer and transmitting pictures out, generally, the pictures are directly transmitted to a computer, then a comparison system in the computer or manual comparison is used for judging whether the product has defects or not, if the product has defects, the product is directly determined to be unqualified and fed out through the feeding device 4, and if the product has no defects, the next step is carried out;
4) step 3) when the product is judged to have no flaw, the ejection detection air cylinder 8 is extended, the ejection detection sucker 9 is made to be attached to the product, then the product 2 is inclined left and right and front and back through different extension amounts of the four ejection detection air cylinders 8, the picture is shot through the CCD detector 7 in the inclined process and is transmitted out, generally, the picture is directly transmitted to a computer, and then whether the product has the flaw is judged through a comparison system in the computer or manual comparison; therefore, products which are preliminarily detected in the step 2) and have no flaw can be rechecked again, and the detection accuracy is ensured.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The principle and embodiments of the present invention have been described herein by way of specific examples, which are provided only to help understand the method and the core idea of the present invention, and the above is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes can be made without departing from the principle of the present invention, and the above technical features can also be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.
Claims (6)
1. The method for detecting the flaw of the curved glass is characterized by comprising the following steps of:
1) conveying the product to be detected to the lower part of the CCD detector;
2) shooting the product through a CCD detector, transmitting the picture out, and then judging whether the product has defects or not through comparing the picture;
3) and 2) when judging that no flaw exists, tilting the product back and forth and left and right, in the tilting process, carrying out camera shooting processing on the product again through the CCD detector, transmitting the picture out, and judging whether the product has the flaw or not by comparing the picture.
2. The method for detecting the defects of the curved glass according to claim 1, wherein before the CCD detector in the step 2) performs image pickup, the product is cleaned by means of water liquid vibration.
3. The equipment adopted by the curved surface glass flaw detection method according to claim 1 is characterized by comprising a conveying trough (1), wherein an upper frame (3) is arranged above the conveying trough (1), a product feeding device (4) matched with a product (2) is arranged below the upper frame (3), a visual detection mounting block (6) is further arranged below the upper frame (3), a CCD detector (7) is mounted below the visual detection mounting block (6) in a matrix mode, and an adjusting device capable of enabling the product in the conveying trough (1) to incline is arranged at the lower part of the conveying trough (1) below the CCD detector (7).
4. The equipment adopted by the curved glass flaw detection method according to claim 3 is characterized in that the adjusting device comprises a detection ejection cylinder (8) arranged below the conveying trough (1), the detection ejection cylinder (8) can penetrate through the conveying trough (1), one end of the detection ejection cylinder penetrating into the conveying trough (1) is connected with detection ejection suckers (9) matched with the products (2), and the detection ejection cylinders (8) are four in number and are distributed in a square shape.
5. The device adopted by the curved surface glass flaw detection method according to claim 3 is characterized in that the product feeding device (4) comprises a feeding movable cylinder (11) arranged between the upper frame (3) and the visual detection mounting block (6), the feeding movable cylinder (11) is connected with a feeding movable block (12), a feeding lifting cylinder (13) is arranged below the feeding movable block (11), a feeding lifting block (14) is connected below the feeding lifting cylinder (13), and a feeding pushing block (15) matched with the product (2) is connected below the feeding lifting block (14).
6. The device adopted by the curved surface glass flaw detection method according to claim 3 is characterized in that a cleaning matching opening (21) is formed in the middle of the conveying tank (1), a cleaning frame (22) is matched below the cleaning matching opening (21), a cleaning receiving block (26) is connected in the cleaning frame (22) through a cleaning lifting cylinder (24), the size of the cleaning receiving block (26) is matched with that of the cleaning matching opening (21), a cleaning water hole (27) is formed in the cleaning receiving block (26), a cylinder sealing sleeve (25) is sleeved on the periphery of the cleaning lifting cylinder (24), and a vibration generator (23) is arranged at the bottom in the cleaning frame (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010004127.6A CN111077169A (en) | 2020-01-03 | 2020-01-03 | Curved glass flaw detection method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010004127.6A CN111077169A (en) | 2020-01-03 | 2020-01-03 | Curved glass flaw detection method |
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| CN111077169A true CN111077169A (en) | 2020-04-28 |
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| CN202010004127.6A Pending CN111077169A (en) | 2020-01-03 | 2020-01-03 | Curved glass flaw detection method |
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Application publication date: 20200428 |
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