CN111366071A - Visual positioning device for large-breadth product - Google Patents
Visual positioning device for large-breadth product Download PDFInfo
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- CN111366071A CN111366071A CN201811603651.4A CN201811603651A CN111366071A CN 111366071 A CN111366071 A CN 111366071A CN 201811603651 A CN201811603651 A CN 201811603651A CN 111366071 A CN111366071 A CN 111366071A
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- light source
- phase forming
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- format product
- visual positioning
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
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- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention provides a large-format product visual positioning device, which comprises a camera, a lens, a support frame, a light source fixing plate and a light source, wherein the camera is arranged on the support frame; the camera and the lens are connected into a whole and form a phase forming device; the phase forming device is arranged on the support frame; the light source fixing plate is slidably arranged on the support frame and is positioned at the bottom of the phase forming device; a phase forming hole is arranged on the light source fixing plate; the light source is arranged on the light source fixing plate, is positioned on the circumferential direction of the phase forming hole and is used for polishing a large-format product in the phase forming hole; the phase forming device is used for forming the phase of the large-format product through the phase forming hole; by adopting the technical scheme, stable and accurate visual positioning can be realized for the large-format product, the positioning accuracy of the arc-shaped surface of the large-format product is improved, and the error is reduced, so that the accurate positioning of the product is improved; the scheme provided by the invention has a reasonable structure and is convenient to operate and implement.
Description
Technical Field
The invention belongs to the technical field of visual positioning, and particularly relates to a visual positioning device for a large-breadth product.
Background
With the rapid development of the automation industry, higher requirements are put forward on the machine vision positioning of products, and the high-precision vision positioning of large-format products is always a difficult problem in the industry; the traditional positioning mode is that a large format is generally divided into a plurality of small areas, the outlines of large format products are spliced and fitted through continuous shooting of the small areas, and by adopting the positioning mode, the more the fitting times are, the larger the accumulated error generated by an algorithm is, and the lower the precision is.
Based on the technical problems in the visual positioning of the product, no relevant solution is provided; there is therefore a pressing need to find effective solutions to the above problems.
Disclosure of Invention
The invention aims to provide a visual positioning device for a large-format product aiming at overcoming the defects in the prior art and solving the problem of large visual positioning error of the existing product.
The invention provides a large-format product visual positioning device, which comprises a camera, a lens, a support frame, a light source fixing plate and a light source, wherein the camera is arranged on the support frame; the camera and the lens are connected into a whole and form a phase forming device; the phase forming device is arranged on the support frame; the light source fixing plate is slidably arranged on the support frame and is positioned at the bottom of the phase forming device; a phase forming hole is arranged on the light source fixing plate; the light source is arranged on the light source fixing plate, is positioned on the circumferential direction of the phase forming hole and is used for polishing a large-format product in the phase forming hole; the phase forming device is used for forming the phase of the large-size product through the phase forming hole.
Further, the light source comprises two A line light sources and two B line light sources; the phase forming hole is a tetragonal phase forming hole; the two A line light sources are respectively arranged on two opposite sides of the square phase forming hole; the two B line light sources are respectively arranged on the other two opposite sides of the square phase forming hole and form a square light source together with the two A line light sources.
Furthermore, the line A light source is arranged on the light source fixing plate through the light source rotating plate A and can rotate around the light source rotating plate A; the B-line light source is arranged on the light source fixing plate through the B-light source rotating plate and can rotate around the B-light source rotating plate.
Further, the light source includes four C-line light sources; the C line light source is arranged on the light source fixing plate through the C light source rotating plate and is positioned in the unfilled corner direction between the A line light source and the B line light source so as to supplement light for a large-breadth product.
Further, the light source fixing plate is arranged on the support frame in a sliding manner along the vertical direction through the light source supporting plate so as to adjust the vertical distance between the light source and the phase forming device; the light source fixing plate is arranged on the light source supporting plate in a sliding mode along the horizontal direction so as to adjust the horizontal distance between the light source and the phase forming device.
Further, the light source support plate comprises a light source support plate A and a light source support plate B; the light source supporting plate A and the light source supporting plate B are arranged along the horizontal direction; two ends of the light source fixing plate are respectively arranged in the slideways of the light source supporting plate A and the light source supporting plate B and can slide along the horizontal direction along with the slideways, so that the horizontal distance between the light source and the phase forming device is adjusted.
Further, the device also comprises an adjusting component; the light source supporting plate is arranged on the supporting frame in a sliding way through a sliding rail; the adjusting assembly comprises an adjusting screw and a tensioning plate; the tensioning plate is fixedly arranged on the supporting frame; the adjusting screw penetrates through the tensioning plate and is fixedly connected with the light source supporting plate; adjusting screw and take-up plate threaded connection slide from top to bottom through rotatory adjusting screw in order to drive the light source backup pad to adjust the light source and become the vertical distance of looks device.
Furthermore, the phase forming device is fixedly arranged on the side edge of the support frame through the phase forming support plate; the camera is a CCD camera.
Further, a vision system is also included; the vision system is in communication connection with the molding device; the visual system is used for carrying out gray level analysis and calculation on the photos of the forming device and fitting the outer contour of the large-format product, so that the visual positioning of the large-format product is completed.
Further, the large-format product comprises an arc-shaped surface; the visual system is used for carrying out gray level analysis and calculation on the photos of the forming device and fitting the outer contour of the arc-shaped surface of the large-format product, so that the arc-shaped surface visual positioning of the large-format product is completed.
Has the advantages that: by adopting the technical scheme, stable and accurate visual positioning can be realized for the large-format product, the positioning accuracy of the arc-shaped surface of the large-format product is improved, and the error is reduced, so that the accurate positioning of the product is improved; the scheme provided by the invention has a reasonable structure and is convenient to operate and implement.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The invention will be further explained with reference to the drawings, in which:
FIG. 1 is a first schematic structural diagram of a visual positioning device for large-format products according to the present invention;
FIG. 2 is a schematic structural diagram of a large-format product visual positioning device according to the present invention;
fig. 3 is a schematic diagram of the operation of the visual positioning device for large-format products according to the present invention.
In the figure: 1. a camera; 2. a lens; 3. a, a line light source; 4. b, a line light source; 5. a C-line light source; 6. a vertical adjustment plate; 7. a, rotating an adjusting plate; 8. tensioning the plate; 9. adjusting screws; 10. a light source support plate; 11. a light source fixing plate; 12. b, rotating the plate by the light source; 13. large format products; 14. a, a light source supporting plate; 15. b, a light source supporting plate; 16. a support frame; 17. a phase forming support plate; 18. a phase forming hole; 19. a titanium plating layer; 20. plastic; 21. a metal; 22. a light source.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 3, the present invention provides a large-format product visual positioning device, which includes a camera 1, a lens 2, a support frame 16, a light source fixing plate 11 and a light source; the camera 1 and the lens 2 are connected into a whole and form a phase forming device; the camera 1 and the lens 2 form an integral imaging device, and the distance between the imaging device and the large-format product 13 enables the large-format product 13 to be clearly imaged in the visual field of the camera 1; the phase forming device is arranged on the support frame 16; the light source fixing plate 11 is slidably arranged on the support frame 16 and is positioned at the bottom of the phase forming device; a phase forming hole 18 is arranged on the light source fixing plate 11; the light source is arranged on the light source fixing plate 11 and positioned in the circumferential direction of the phase forming hole 16, and is used for polishing the large-format product 13 in the phase forming hole 16; the phase forming device forms the phase of the large-format product 13 through the phase forming hole 16; specifically, the phase forming device is fixedly arranged on the side of the support frame 16 through the phase forming support plate 17 and corresponds to the phase forming hole 18; furthermore, the camera is a CCD camera, the camera 1 adopts a high-resolution large-view CCD camera, and the lens adopts a large-view telecentric lens, so that the precision of visual positioning can be ensured; the visual positioning device provided by the invention is suitable for machine visual positioning of large-format products, the device can perform stable multi-angle polishing on the large-format products, adjust the irradiation angle of a light source, the distance from the products, the brightness of the light source and the like, finish high-precision visual shooting of the large-format products through a lens and a camera, optimize and fit the appearance of the large-format products according to an algorithm by a visual system, and finish high-precision visual positioning of the large-format products; by adopting the scheme, stable and accurate visual positioning can be realized for large-breadth products, and errors are reduced.
Preferably, in combination with the above scheme, as shown in fig. 1 to 3, in the present embodiment, the light source includes two a-line light sources 3 and two B-line light sources 4; the phase forming hole 16 is a tetragonal phase forming hole; two A line light sources 3 set up respectively in the relative both sides of four directions formation looks hole, and two B line light sources 4 set up respectively in another relative both sides of four directions formation looks hole to form the square light source with two A line light sources 3, all be equipped with the light source on four obstructed directions that form the looks hole in four directions promptly, in order to polish big breadth product.
Preferably, with the above solutions, as shown in fig. 1 to 3, in this embodiment, the a-line light source 3 is disposed on the light source fixing plate 11 through the a-light source rotating plate 7, and can rotate around the a-light source rotating plate 7 to adjust the light source angle of the a-line light source 3; the B-line light source 4 is arranged on the light source fixing plate 11 through the B-light source rotating plate 12 and can rotate around the B-light source rotating plate 12 to adjust the light source angle of the B-line light source 4; by adopting the scheme, the large-breadth product is combined and polished by the plurality of light sources, so that the large breadth of the product forms a high-quality and high-contrast image in the CCD visual field.
Preferably, in combination with the above scheme, as shown in fig. 1 to 3, in the present embodiment, the light source further includes four C-line light sources 5; the C line light source 5 is arranged on the light source fixing plate 11 through the C light source rotating plate and is positioned in the unfilled angle direction between the A line light source 3 and the B line light source 4 so as to supplement light for the large-format product 13; by adopting the scheme, the two A line light sources 3, the two B line light sources and the four C line light sources 5 are all fixed on the light source fixing plate 11, and the height of the light sources can be integrally adjusted by adjusting the light source supporting plate 10, so that the distance from the light sources to a large-format product is adjusted; in addition, the light source fixing plate 11 may slide along the a and B light source support plates 14 and 15, thereby adjusting the relative positions of the light source assembly and the camera.
Preferably, in combination with the above solution, as shown in fig. 1 to 3, in the present embodiment, the light source fixing plate 11 is slidably disposed on the supporting frame 16 in the vertical direction through the light source supporting plate 10 to adjust the vertical distance between the light source and the phase forming device; the light source fixing plate 11 is slidably disposed on the light source supporting plate 10 in a horizontal direction to adjust a horizontal distance between the light source and the imaging device.
Preferably, in combination with the above scheme, as shown in fig. 1 to 3, in the present embodiment, the light source support plate 10 includes an a light source support plate 14 and a B light source support plate 15; the a light source support plate 14 and the B light source support plate 15 are arranged in the horizontal direction; the two ends of the light source fixing plate 11 are respectively arranged in the slideways of the light source supporting plate A14 and the light source supporting plate B15 and can slide along the horizontal direction along with the slideways, so that the horizontal distance between the light source and the phase forming device is adjusted; by adopting the scheme, each light source can adjust the direction and the brightness according to the difference of the product position and the material, can be integrally adjusted, has stable and firm structure and can form stable and clear images.
Preferably, in combination with the above solution, as shown in fig. 1 to 3, the present embodiment further includes an adjusting assembly; the light source supporting plate 10 is slidably arranged on the supporting frame 16 through a sliding rail; the adjusting assembly comprises an adjusting screw 9 and a tensioning plate 8; the tensioning plate 8 is fixedly arranged on the supporting frame 16; the adjusting screw 9 passes through the tensioning plate 8 and is fixedly connected with the light source supporting plate 11; the adjusting screw 9 is in threaded connection with the tensioning plate 8, and the light source supporting plate 10 is driven to slide up and down by rotating the adjusting screw 9, so that the vertical distance between the light source and the phase forming device is adjusted; by adopting the scheme, the whole light source assembly moves up and down by adjusting the rotation direction of the adjusting screw 9, so that the distance between the light source and the product is adjusted, and after the light source is adjusted to a proper height, the angles of the line A light source 3 and the line B light source 4 are adjusted, so that the positioning characteristics of the large-format product are obviously compared with the background; through adjusting C line light source 5, C line light source 5 mainly plays the light filling effect, makes the location characteristic of big breadth product arc part also can the obvious contrast of stroke with the background, the fixed screw of fixed all light sources, and light source system has already formed good polishing to big breadth product, adjusts the height of camera 1 and camera lens 2 this moment, makes big breadth product present the clearest picture in camera 1.
Preferably, in combination with the above solutions, as shown in fig. 1 to 3, in this embodiment, the large format product visual positioning apparatus further includes a visual system; the vision system is in communication connection with the molding device; the visual system is used for carrying out gray level analysis and calculation on the photos of the forming device and fitting the outer contour of the large-format product, so that the visual positioning of the large-format product is completed.
Preferably, in combination with the above solutions, as shown in fig. 1 to 3, in the present embodiment, the large-format product 13 includes an arc-shaped surface; specifically, the large-format product 13 includes an arc-shaped surface, the arc-shaped surface is formed by splicing a metal 21 and a plastic 20, meanwhile, the metal 21 and the plastic 20 are both provided with a titanium-plated layer 19, a light source 22 is required to be used for irradiation, the metal 21 and the plastic 20 are distinguished, and a high-quality and high-contrast image can be output only by polishing the metal 21 and the plastic 20 along a direction F by using the light source 22 with good linearity, so that high-precision and high-stability positioning is formed; further, the vision system is used for carrying out gray level analysis and calculation on the photos of the forming device and fitting the outer contour of the arc-shaped surface of the large-format product, so that the arc-shaped surface vision positioning of the large-format product is completed; by adopting the scheme, the large-format product is polished by combining the light sources in all directions, so that the large-format product presents high-quality, high-contrast and stable images in the visual field of the camera 1, the camera 1 acquires pictures, and the visual system performs gray value analysis and calculation on the acquired pictures and fits the product outline, thereby completing high-precision visual positioning on the arc surface of the product.
By adopting the technical scheme, stable and accurate visual positioning can be realized for the large-format product, the positioning accuracy of the arc-shaped surface of the large-format product is improved, and the error is reduced, so that the accurate positioning of the product is improved; the scheme provided by the invention has a reasonable structure and is convenient to operate and implement.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Those skilled in the art can make numerous possible variations and modifications to the described embodiments, or modify equivalent embodiments, without departing from the scope of the invention. Therefore, any modification, equivalent change and modification made to the above embodiments according to the technology of the present invention are within the protection scope of the present invention, unless the content of the technical solution of the present invention is departed from.
Claims (10)
1. A visual positioning device for large-breadth products is characterized by comprising a camera, a lens, a support frame, a light source fixing plate and a light source; the camera and the lens are connected into a whole and form a phase forming device; the phase forming device is arranged on the support frame; the light source fixing plate is slidably arranged on the support frame and is positioned at the bottom of the phase forming device; a phase forming hole is formed in the light source fixing plate; the light source is arranged on the light source fixing plate and positioned in the circumferential direction of the phase forming hole, and is used for polishing a large-format product in the phase forming hole; the phase forming device is used for forming the phase of the large-format product through the phase forming hole.
2. The large format product visual positioning device of claim 1, wherein the light source comprises two a-line light sources and two B-line light sources; the phase forming hole is a square phase forming hole; the two line A light sources are respectively arranged on two opposite sides of the square phase forming hole; the two B line light sources are respectively arranged on the other two opposite sides of the square phase forming hole and form a square light source together with the two A line light sources.
3. The large format product visual positioning device of claim 2, wherein the a-line light source is disposed on the light source fixing plate through an a-light source rotating plate and is rotatable around the a-light source rotating plate; the B-line light source is arranged on the light source fixing plate through the B-light source rotating plate and can rotate around the B-light source rotating plate.
4. The large format product visual positioning device of claim 2, wherein the light source comprises four C-line light sources; the C line light source is arranged on the light source fixing plate through the C light source rotating plate and is positioned in the unfilled angle direction between the A line light source and the B line light source so as to supplement light for the large-format product.
5. The large format product visual positioning device of claim 1, wherein the light source fixing plate is slidably disposed on the support frame in a vertical direction through a light source support plate to adjust a vertical distance between the light source and the phase forming device; the light source fixing plate is slidably arranged on the light source supporting plate along the horizontal direction so as to adjust the horizontal distance between the light source and the phase forming device.
6. The large format product visual positioning device of claim 5, wherein the light source support plate comprises a light source support plate A and a light source support plate B; the light source supporting plate A and the light source supporting plate B are arranged along the horizontal direction; the two ends of the light source fixing plate are respectively arranged in the slideways of the light source supporting plate A and the light source supporting plate B and can slide along the horizontal direction along with the slideways, so that the horizontal distance between the light source and the phase forming device is adjusted.
7. The large format product visual positioning device of claim 5, further comprising an adjustment assembly; the light source supporting plate is arranged on the supporting frame in a sliding manner through a sliding rail; the adjusting assembly comprises an adjusting screw and a tensioning plate; the tensioning plate is fixedly arranged on the supporting frame; the adjusting screw penetrates through the tensioning plate and is fixedly connected with the light source supporting plate; the adjusting screw is in threaded connection with the tensioning plate, and the light source supporting plate is driven to slide up and down by rotating the adjusting screw, so that the vertical distance between the light source and the phase forming device is adjusted.
8. The large format product visual positioning device of claim 1, wherein the phase forming device is fixedly disposed at a side of the support frame by a phase forming support plate; the camera is a CCD camera.
9. The large format product visual positioning device of any one of claims 1 to 8, further comprising a vision system; the vision system is in communication connection with the molding device; the visual system is used for carrying out gray level analysis and calculation on the photos of the forming device and fitting the outer contour of the large-format product, so that the visual positioning of the large-format product is completed.
10. The large format product visual positioning device of claim 9, wherein the large format product includes an arcuate face; the visual system is used for carrying out gray level analysis and calculation on the photos of the forming device and fitting the outer contour of the arc-shaped surface of the large-format product, so that the arc-shaped surface visual positioning of the large-format product is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811603651.4A CN111366071A (en) | 2018-12-26 | 2018-12-26 | Visual positioning device for large-breadth product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811603651.4A CN111366071A (en) | 2018-12-26 | 2018-12-26 | Visual positioning device for large-breadth product |
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| CN111366071A true CN111366071A (en) | 2020-07-03 |
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| CN201811603651.4A Pending CN111366071A (en) | 2018-12-26 | 2018-12-26 | Visual positioning device for large-breadth product |
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| CN101883198A (en) * | 2010-06-04 | 2010-11-10 | 王震 | Scanner capable of detecting in real time and physically adjusting frame and scanning method thereof |
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| CN104865268A (en) * | 2015-06-11 | 2015-08-26 | 苏州博众精工科技有限公司 | Optical detection mechanism of electronic display screen |
| CN105620050A (en) * | 2014-10-28 | 2016-06-01 | 大族激光科技产业集团股份有限公司 | High-precision galvanometer error self-correcting device and high-precision galvanometer error self-correcting method based on machine vision |
| CN105783714A (en) * | 2016-03-16 | 2016-07-20 | 苏州富强科技有限公司 | Supplementary-light-adjustability type measuring system capable of measuring side surface or inside |
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2018
- 2018-12-26 CN CN201811603651.4A patent/CN111366071A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101883198A (en) * | 2010-06-04 | 2010-11-10 | 王震 | Scanner capable of detecting in real time and physically adjusting frame and scanning method thereof |
| CN104458207A (en) * | 2013-09-22 | 2015-03-25 | 北京兆维电子(集团)有限责任公司 | Liquid crystal display panel optical detecting system |
| CN105620050A (en) * | 2014-10-28 | 2016-06-01 | 大族激光科技产业集团股份有限公司 | High-precision galvanometer error self-correcting device and high-precision galvanometer error self-correcting method based on machine vision |
| CN104865268A (en) * | 2015-06-11 | 2015-08-26 | 苏州博众精工科技有限公司 | Optical detection mechanism of electronic display screen |
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