CN114674834A - Curved surface screen defect detection equipment - Google Patents
Curved surface screen defect detection equipment Download PDFInfo
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- CN114674834A CN114674834A CN202210351985.7A CN202210351985A CN114674834A CN 114674834 A CN114674834 A CN 114674834A CN 202210351985 A CN202210351985 A CN 202210351985A CN 114674834 A CN114674834 A CN 114674834A
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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
- G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
- G01N21/892—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the flaw, defect or object feature examined
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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
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- General Physics & Mathematics (AREA)
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention relates to the field of automatic detection devices, and particularly discloses curved screen defect detection equipment, which comprises: a frame; a conveying device for positioning and conveying the curved screen; and the shooting device is used for acquiring the arc edge defect information of the curved screen. A shooting frame body used for installing a shooting device is arranged on the frame; the camera device comprises at least one first camera unit and at least one second camera unit. The first shooting unit and the second shooting unit are respectively arranged on two opposite side surfaces of the shooting frame body. The detection equipment improves the production efficiency and the yield.
Description
Technical Field
The invention relates to the field of automatic detection devices, in particular to curved surface screen defect detection equipment.
Background
As the demands of consumers are increasing day by day, a plurality of curved surface display screens (such as a curved surface hard screen and a curved surface flexible screen) are produced, and the appearance with high color value and excellent hand feeling of the curved surface display screens quickly become a new favorite of the consumers and gradually become a hot spot for domestic manufacturers to pursue each other.
The glass screen body can generate various defects in the bending process, so after the production of the curved screen is finished, the surface of the glass screen needs to be detected to determine the surface quality and whether the appearance defects exist. Conventional flat glass screens are typically inspected using high-definition cameras or laser sensors. But curved surface glass is because its surface is the non-planar arc, therefore traditional check out test set can't carry out the surface detection to curved surface glass, often need rely on the long-time screening of a large amount of production line workman, but manual detection under the long-time highlight not only leaks the rate of examining, the false retrieval rate is high, and detection efficiency is low moreover, still can cause certain influence to workman's health. If a single-phase machine is used for detection, for example, a defect detection device applied to a curved screen disclosed in patent No. 202010062982.2, the flexibility and compatibility are poor.
In view of the poor adaptability of the conventional detection device, especially for curved glass with various curved surface characteristics, it is necessary to develop a curved panel detection device to solve the above problems.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide curved-surface screen defect detection equipment.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a curved screen defect detecting apparatus comprising: a frame; a conveying device for positioning and conveying the curved screen; and the shooting device is used for acquiring the arc edge defect information of the curved screen. A shooting frame body used for installing a shooting device is arranged on the frame; the shooting device comprises at least one first shooting unit and at least one second shooting unit; the first shooting unit and the second shooting unit are arranged on two opposite side faces of the shooting frame body respectively, the first shooting unit is used for detecting a first arc edge of the curved screen, and the second shooting unit is used for detecting a second arc edge of the curved screen.
Further, the conveying device is provided to be slidable at least between the first photographing unit and the second photographing unit. The conveying device comprises a slide rail extending along the conveying direction of the curved screen and a curved screen positioning seat in sliding fit with the slide rail.
Further, the first photographing unit includes at least one line scanning camera and at least one illumination lamp. The line scanning camera and the illuminating lamp face towards the first arc edge. The second photographing unit includes at least one line scanning camera and at least one illumination lamp. The line scanning camera and the illuminating lamp face towards the second arc edge.
Further, the line scanning camera is arranged to be angularly adjustable. The lighting lamp is arranged to be angle-adjustable.
Further, the first shooting unit and the second shooting unit are both jointed on the shooting frame body in a position-adjustable mode. The shooting frame body is provided with a first arc-shaped groove in sliding fit with the first shooting unit and a second arc-shaped groove in sliding fit with the second shooting unit.
Furthermore, a first locking mechanism for locking the first shooting unit at a set position on the shooting frame body is arranged on the first shooting unit, and a second locking mechanism for locking the second shooting unit at a set position on the shooting frame body is arranged on the second shooting unit.
Further, shoot the support body and include the support frame and set up first regulating plate, the second regulating plate on the support frame, first shooting unit joint is on first regulating plate, the second shooting unit joint is on the second regulating plate. The first adjusting plate is provided with a first arc-shaped groove in sliding fit with the first shooting unit, and the second adjusting plate is provided with a second arc-shaped groove in sliding fit with the second shooting unit. The first adjusting plate and the second adjusting plate are both connected to the support frame in a position-adjustable manner in a direction perpendicular to the conveying direction of the curved screen.
Further, the first shooting unit and the second shooting unit are arranged in three.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
1. the two shooting units are arranged on the two opposite side surfaces of the shooting frame body, so that the arc edges of the curved screen in two directions can be scanned and detected, the space can be utilized to the maximum extent, and the arc edge defects can be shot and detected more effectively.
2. The conveying device of the curved surface screen defect detection equipment can slide between the two shooting units, and can feed and discharge materials in an automatic logistics mode, so that the production efficiency is improved.
3. The line is swept camera and light angle and all can be adjusted, can set up the scanning position in a flexible way, can compatible detect more various curved surface screens, and general compatibility is better.
4. The shooting unit is adjustable on shooting the support body, can better adapt to different shapes and wait to detect curved screen, also can adjust the scanning to different positions according to different needs, and it is more nimble convenient to use the operation.
5. Be equipped with locking mechanical system on the shooting unit, prevent because machine vibrations influence the position that the shooting unit adjusted and then influence the uniformity that quality detected, quality detection is more stable.
6. The adjusting plate can be adjusted along the position in the transmission direction of the curved surface screen perpendicular to the curved surface screen, and is flexible to operate and high in compatibility.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below, and it is apparent that the drawings in the following description only relate to some embodiments of the present invention and are not limiting on the present invention.
Fig. 1 is a schematic front-side direction structure diagram of an embodiment of the curved screen defect detecting apparatus of the present invention.
Fig. 2 is a schematic structural diagram of a rear side direction of an embodiment of the curved screen defect detecting apparatus of the present invention.
Fig. 3 is a schematic view of a positioning seat structure of an embodiment of the curved screen defect detecting apparatus of the present invention.
Fig. 4 is a schematic view of an assembly structure of a shooting unit and a shooting frame body according to an embodiment of the curved screen defect detecting apparatus of the present invention.
Fig. 5 is a schematic structural view of a photographing frame body according to an embodiment of the curved screen defect detecting apparatus of the present invention.
FIG. 6 is a schematic view of an assembly structure of a photographing unit and an adjusting plate according to an embodiment of the apparatus for detecting defects of a curved panel.
FIG. 7 is a schematic view of an adjusting plate structure of an embodiment of the curved panel defect detecting apparatus of the present invention.
Reference numerals:
1. a first motor; 101. a first line scan camera; 102. a second line scan camera; 103. a third line scan camera; 104. a fourth line scan camera; 105. a fifth line scan camera; 106. a sixth line scan camera; 201. a first illumination lamp; 202. a second illumination lamp; 203. a third lighting lamp; 204. a fourth illuminating lamp; 205. a fifth lighting lamp; 206. a sixth illuminating lamp; 2. a second adjusting plate; 3. a second motor; 4. a first support frame; 5. a second support frame; 6. a slide rail; 7. a frame; 8. a shock pad; 9. positioning seats; 10. a second jig; 11. a first jig; 12. a curved screen; 13. a first adjusting plate; 14. a first locking mechanism; 15. a second locking mechanism; 16. a first guide rail; 17. calibration; 18. a second arc-shaped slot; 19. a lamp source adjusting frame; 20. a second guide rail; 21. a first arc edge; 22. a second arc edge; 23. a first arc-shaped groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and claims of this patent does not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are used only to indicate relative positional relationships that may change when the absolute position of an object being described is changed, and are merely for convenience in describing the invention and to simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. Features in the embodiments described below may be combined with each other without conflict.
The first embodiment is as follows:
referring to fig. 1, 2 and 3, the present invention provides a curved panel defect detecting apparatus, including: a frame 7; a conveying device for positioning and conveying the curved screen 12; and a shooting device for acquiring the arc edge defect information of the curved screen 12. A shooting frame body for mounting a shooting device is arranged on the frame 7 and comprises a first support frame 4, a first adjusting plate 13, a second support frame 5 and a second adjusting plate 2; the shooting device comprises at least one first shooting unit and at least one second shooting unit; the first shooting unit and the second shooting unit are respectively arranged on two opposite side surfaces of the shooting frame body, the shooting frame body is divided into two parts, the first part comprises a first support frame 4 and a first adjusting plate 13, and the first shooting unit is arranged on the first adjusting plate 13; the second part includes a second support bracket 5 and a second adjusting plate 2, and the second photographing unit is disposed on the second adjusting plate 2. The first shooting unit is used for detecting a first arc edge 21 of the curved screen 12, and the second shooting unit is used for detecting a second arc edge 22 of the curved screen 12.
The conveying device comprises a slide rail 6 extending along the conveying direction of the curved screen 12 and a positioning seat 9 of the curved screen 12 in sliding fit with the slide rail 6, and the positioning seat 9 can slide between the first shooting unit and the second shooting unit along the slide rail 6. Be equipped with first tool 11 and the second tool 10 of placing curved surface screen 12 on the positioning seat, can once place two curved surface screens 12 and detect, improve detection efficiency.
The first shooting unit is movably arranged on the first adjusting plate 13, the first adjusting plate 13 is arranged on the first supporting frame 4 in a sliding mode, the first shooting unit comprises three groups of shooting modules, and each group of shooting modules comprises a line scanning camera and an illuminating lamp. The three groups of shooting modules are respectively as follows: a first line scan camera 101 and a first illumination lamp 201; a second line scan camera 102 and a second illumination lamp 202; a third line scanning camera 103 and a third illumination lamp 203. Each set of line scan camera and illumination lamp is oriented towards the first arc edge 21, and the angle of the line scan camera and illumination lamp is adjustable.
The second shooting unit is movably arranged on the second adjusting plate 2, the second adjusting plate 2 is arranged on the second supporting frame 5 in a sliding mode, the second shooting unit also comprises three groups of shooting modules, and each group of shooting modules comprises a line scanning camera and an illuminating lamp. The three groups of shooting modules are respectively as follows: a fourth line scanning camera 104 and a fourth illumination lamp 204; a fifth line scanning camera 105 and a fifth illumination lamp 205; a sixth line scan camera 106 and a sixth illumination lamp 206. Each set of line scan camera and illumination lamp is directed towards the second arc 22, the angle of the line scan camera and illumination lamp being adjustable.
In a first embodiment, the first camera unit and the second camera unit are each coupled to the camera frame in a positionally adjustable manner. The photographing frame body has a first arc-shaped groove 23 in sliding fit with the first photographing unit and a second arc-shaped groove 18 in sliding fit with the second photographing unit.
The second embodiment, shoot the support body and include first support frame 4 and the activity set up first regulating plate 13, second support frame 5 on first support frame 4 and the activity sets up second regulating plate 2 on second support frame 5, and first regulating plate 13 and second regulating plate 2 are the same accessory of structural shape, and first shooting unit joint is on first regulating plate 13, and the second shooting unit joint is on second regulating plate 2.
In order to ensure the accuracy of the detection position, the first shooting unit is provided with a first locking mechanism 14 for locking the first shooting unit at a set position on the shooting frame body.
Referring to fig. 4 and 5, the lighting lamp is mounted on the lamp source adjusting frame 19, and the position of the lamp source can be adjusted. The first motor 1 is arranged on the first support frame 4, the first guide rail 16 is further arranged on the first support frame 4, and the first adjusting plate 13 can move along the first guide rail 16 under the driving of the first motor 1 so as to adjust the position of the first adjusting plate 13. Be equipped with second motor 3 on the second support frame 5, still be equipped with second guide rail 20 on the second support frame 5, second regulating plate 2 can move along second guide rail 20 under the drive of second motor 3 to adjust the position of second regulating plate 2. The first support frame 4 and the second support frame 5 can be adjusted to be lifted in the height direction. Therefore, the first adjusting plate 13 and the second adjusting plate 2 can move in the direction perpendicular to the motion direction of the curved screen, so that the first shooting unit and the second shooting unit which are assembled on the first adjusting plate can be driven to move, the detection positions can be adjusted according to different product sizes and shapes, and the product compatibility is better.
And shock absorption pads 8 are arranged between the first support frame 4, the second support frame 5 and the rack 7, so that detection errors caused by environmental vibration can be reduced.
Referring to fig. 6 and 7, a first arc-shaped groove 23 slidably engaged with the first shooting unit is disposed on the first adjusting plate 13, and a second arc-shaped groove 18 slidably engaged with the second shooting unit is disposed on the second adjusting plate 2. Still be equipped with scale 17 on the regulating plate, be convenient for sign shooting unit's adjusting position.
In order to ensure the accuracy of the detection position, a first locking mechanism 14 for locking the first shooting unit at a set position on the shooting frame body is arranged on the first shooting unit, and a second locking mechanism 15 for locking the second shooting unit at a set position on the shooting frame body is arranged on the second shooting unit.
In order to adapt to the detection of the curved surface screen, the number of the first shooting units and the number of the second shooting units are three.
[ other embodiments ]
An optical path extension compensation module can be further arranged as required and is installed on an optical path of the curved screen 12 imaged on the line scanning camera, so that the curved screen 12 is imaged on the line scanning camera through the optical path extension compensation module.
The first shooting unit and the second shooting unit can also be arranged to be automatically adjusted in angle by a motor.
The positioning seat 9 can be set to be a structure with the height capable of automatically lifting and the angle adjustable.
The working process or principle of the invention is as follows:
before the work, the positioning seat 9 is firstly used for driving the curved screen 12 to move to a position between the first adjusting plate 13 and the second adjusting plate 2, and then the line scanning camera and the lighting lamp of the first shooting unit and the second shooting unit are adjusted to be aligned to the detection position of the curved screen 12: after the first arc edge 21 and the second arc edge 22 are adjusted, the first locking mechanism 14 and the second locking mechanism 15 are adjusted to fasten the line scanning camera and the illuminating lamp of the first shooting unit and the second shooting unit so as to prevent looseness.
The method comprises the steps of switching on an external power supply, starting a machine, driving a curved screen 12 to slide along a slide rail 6 by a positioning seat 9, setting the number of trigger cameras according to the size of a curved angle of a product when the curved screen passes through a first shooting unit and a second shooting unit, carrying out pixel acquisition shooting on a first arc edge 21 and a second arc edge 22 of the curved screen by a line scanning camera, storing each pixel line by software on a visual processor or an image acquisition card after the shooting is finished, reconstructing pixel data into a final 2D image, and carrying out algorithm analysis on the shot image by a computer to confirm whether the detected curved screen is qualified. If the qualified positioning seat 9 drives the curved screen 12 to move, the curved screen 12 product is conveyed to the backward follow-up production line.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only for the purpose of illustrating the principles of the invention, but that there are many variations, modifications, substitutions and alterations without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A curved screen defect detecting apparatus comprising:
a frame;
a conveying device for positioning and conveying the curved screen; and
the shooting device is used for acquiring arc edge defect information of the curved screen;
the method is characterized in that:
a shooting frame body used for installing a shooting device is arranged on the frame;
the shooting device comprises at least one first shooting unit and at least one second shooting unit;
the first shooting unit and the second shooting unit are arranged on two opposite side faces of the shooting frame body respectively, the first shooting unit is used for detecting a first arc edge of the curved screen, and the second shooting unit is used for detecting a second arc edge of the curved screen.
2. The curved screen defect detecting apparatus of claim 1, wherein the conveying means is provided to be slidable at least between the first photographing unit and the second photographing unit.
3. The curved screen defect detecting device of claim 2, wherein the conveying device comprises a slide rail extending in a conveying direction of the curved screen, and a curved screen positioning seat slidably fitted with the slide rail.
4. The curved screen defect detecting apparatus of claim 1, wherein the first photographing unit comprises at least one line scanning camera and at least one illumination lamp.
5. The curved screen defect detecting apparatus of claim 4, wherein the line scanning camera and the illuminating lamp are both directed toward the first arc edge.
6. The curved screen defect detecting apparatus of claim 1, wherein the second photographing unit comprises at least one line scanning camera and at least one illumination lamp.
7. The curved screen defect detecting apparatus of claim 6, wherein the line scan camera and the illumination lamp are both directed toward the second arc edge.
8. A curved screen defect detection apparatus as claimed in any one of claims 4 to 7, wherein said line scan camera is angularly adjustable.
9. A curved screen defect inspection apparatus as claimed in any one of claims 4 to 7, wherein the illumination lamp is angularly adjustable.
10. The curved screen defect detecting apparatus of claim 1, wherein the first photographing unit and the second photographing unit are both coupled to the photographing frame body in a position-adjustable manner;
preferably, the shooting frame body is provided with a first arc-shaped groove in sliding fit with the first shooting unit and a second arc-shaped groove in sliding fit with the second shooting unit;
preferably, the first shooting unit is provided with a first locking mechanism for locking the first shooting unit at a set position on the shooting frame body, and the second shooting unit is provided with a second locking mechanism for locking the second shooting unit at a set position on the shooting frame body;
preferably, the photographing frame body comprises a support frame, and a first adjusting plate and a second adjusting plate which are arranged on the support frame, the first photographing unit is jointed on the first adjusting plate, and the second photographing unit is jointed on the second adjusting plate;
preferably, a first arc-shaped groove in sliding fit with the first shooting unit is formed in the first adjusting plate, and a second arc-shaped groove in sliding fit with the second shooting unit is formed in the second adjusting plate;
preferably, the first adjusting plate and the second adjusting plate are both coupled to the support frame in a position-adjustable manner in a direction perpendicular to the conveying direction of the curved screen;
preferably, the first photographing unit and the second photographing unit are each provided in three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210351985.7A CN114674834A (en) | 2022-04-02 | 2022-04-02 | Curved surface screen defect detection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210351985.7A CN114674834A (en) | 2022-04-02 | 2022-04-02 | Curved surface screen defect detection equipment |
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| Publication Number | Publication Date |
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| CN114674834A true CN114674834A (en) | 2022-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210351985.7A Pending CN114674834A (en) | 2022-04-02 | 2022-04-02 | Curved surface screen defect detection equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115371966A (en) * | 2022-08-22 | 2022-11-22 | 广东省晶鸿电子有限公司 | Curved surface display screen defect detecting equipment |
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2022
- 2022-04-02 CN CN202210351985.7A patent/CN114674834A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115371966A (en) * | 2022-08-22 | 2022-11-22 | 广东省晶鸿电子有限公司 | Curved surface display screen defect detecting equipment |
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