CN215613339U - A device for detecting surface defects of metal cylindrical rods based on line scan cameras - Google Patents
A device for detecting surface defects of metal cylindrical rods based on line scan cameras Download PDFInfo
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- CN215613339U CN215613339U CN202122186179.2U CN202122186179U CN215613339U CN 215613339 U CN215613339 U CN 215613339U CN 202122186179 U CN202122186179 U CN 202122186179U CN 215613339 U CN215613339 U CN 215613339U
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- 238000003466 welding Methods 0.000 claims abstract description 11
- 238000012216 screening Methods 0.000 claims abstract description 8
- 238000013519 translation Methods 0.000 claims description 48
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Abstract
The utility model discloses a linear array camera-based metal cylindrical rod surface defect detection device, which mainly comprises the following parts: the device comprises a detection device welding outer frame, a linear array camera mounting bracket, a high-angle polishing light source mounting and adjusting frame, a low-angle polishing light source mounting and adjusting frame, a double-roller type detection table and a device base. The linear array camera is arranged right above the double-roller type detection table and fixed on the adjustable platform. The number of the light sources is two, the light sources are mainly positioned at the oblique lower part of the linear array camera, and the linear array camera is provided with a sliding guide rail and an angle adjusting piece, so that the up-down, front-back and angle adjustment can be carried out. The double-roller type detection table mainly comprises a material distributing shaft, a double-roller type rotating shaft and a screening device. After the metal cylindrical rods are sequentially arranged through the material distributing shaft, the metal cylindrical rods enter the double-roller type rotating shaft for rotation detection. Finally, qualified products are sorted by a screening device. The utility model not only improves the detection efficiency and the detection precision. And is also suitable for metal rods with different lengths and outer diameters.
Description
Technical Field
The utility model relates to a detection device, in particular to a metal cylindrical rod surface defect detection device.
Background
With the increasing level of industrial automation, automated production in modern production lines has become increasingly realistic. However, for any industrial product, the product quality is one of the most important indexes, most of the traditional detection processes mainly use manual detection, and the problems of poor detection efficiency, high labor cost and the like often exist. Compared with the traditional manual detection mode, the machine vision detection technology has the advantages of high detection precision, good accuracy, high automation degree, high production efficiency, low defective rate and the like, mainly collects images on the surfaces of workpiece products through a camera, transmits the collected images into a computer for processing, judges whether the products have defects or not, and achieves better detection effect.
Among the prior art, when detecting metal cylinder pole surface defect, rotate after need carrying out the centre gripping with metal cylinder pole one end usually, gather the surface image simultaneously, this discontinuity that just leads to the testing process to reduce the efficiency that detects. And the mode of using single-ended centre gripping can lead to the incompleteness of surface image mostly to can't judge accurately whether there is the defect in the whole surface of metal cylinder pole. The metal cylindrical rod with long length can swing left and right in the rotation process by using a single-end clamping mode, and the rotation precision is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the surface defect detection of the existing metal cylindrical rod and provides a metal cylindrical rod surface defect detection device based on a linear array camera, so that the surface of the metal cylindrical rod can be subjected to full-surface detection.
The purpose of the utility model is realized by the following technical scheme:
a metal cylinder pole surface defect detection device based on linear array camera includes: the detection device comprises a welding outer frame (100), a linear array camera mounting bracket (200), a high-angle polishing light source mounting adjusting frame (300), a low-angle polishing light source mounting adjusting frame (400), a double-roller type detection table (500) and a device base (600).
The linear array camera is installed on the combined type translation rotating platform along the vertical direction through a connecting piece and is positioned right above the pair of roller type detection tables.
The number of the light source installation adjusting frames is two, the two light source installation adjusting frames are installed on the outer welding frame of the detection device, and the high-angle light source installation adjusting frame and the low-angle light source installation adjusting frame are located right in front of the linear array camera installation support.
The double-roller type detection table is horizontally arranged on the welding outer frame of the detection device, and the roller shaft of the double-roller type detection table is accurately positioned right below the center of the linear array camera mounting bracket
The linear array camera mounting bracket mainly comprises: unipolar X translation slip table, unipolar Y translation slip table, unipolar Z translation slip table, rotary platform, linear array camera, first connecting plate, second connecting plate, linear guide.
Further, linear guide connect in detection device welding outer frame, the second connecting plate is installed linear guide is last, unipolar X translation slip table connect in the second connecting plate, unipolar Y translation slip table install in unipolar X translation slip table, unipolar Z translation slip table connect in unipolar Y translation slip table, rotary platform with unipolar Z translation slip table is connected. The linear array camera is connected with the rotating platform through the first connecting plate.
The high-angle light source is positioned on one side of the linear array camera with a short vertical distance;
the low-angle light source is positioned on one side of the linear array camera with a longer vertical distance;
further, the light source installation adjusting frame comprises a bar-shaped light source, a light source installation sheet metal part, an angle adjustment sheet metal part, a horizontal linear guide rail and a vertical linear guide rail, wherein the bar-shaped light source is connected with the light source installation sheet metal part, and two ends of the light source installation sheet metal part are installed on the angle adjustment sheet metal part. The angle adjusting sheet metal part is arranged on the horizontal linear guide rail.
The pair roller type detection platform mainly comprises: initiative servo motor, driven servo motor, divide material servo motor, mounting plate, slip table mounting panel, unipolar translation slip table, linear guide, translation mounting panel, single motor mounting panel, bi-motor mounting panel, detection roller mounting panel, composite mounting panel, initiative detection roller, driven detection roller, branch material roller, picks material screening board, shaft coupling, revolving cylinder, material loading connecting plate, transition pay-off connecting plate.
Further, mounting plate connect in on the device base, the slip table mounting panel the bi-motor mounting panel the composite mounting panel with linear guide direct mount be in on the mounting plate, unipolar translation slip table is connected on the slip table mounting panel, the translation mounting panel is installed on the translation slip table and is connected on linear guide, single motor mounting panel with detect the roller mounting panel connect in on the translation mounting panel, initiative servo motor locates on the single motor mounting panel and through the shaft coupling in the initiative detects the roller and is connected, the initiative detects the roller and installs in detecting the roller mounting panel, driven servo motor with divide material servo motor to install jointly in on the bi-motor mounting panel, and pass through the shaft coupling is connected respectively driven detection roller with on the branch material roller, driven detection roller, bi-motor mounting panel, The material separating roller, the feeding connecting plate, the transition feeding connecting plate, the rotary cylinder and the material rejecting and screening plate are all arranged on the composite mounting plate.
The utility model provides a metal cylinder pole surface defect detection device based on linear array camera, through adjusting linear array camera, high angle bar light source, the light source is swept to the low angle line, linear array camera installing support, high angle is polished light source installation adjustment frame, low angle is polished light source installation adjustment frame, to the roll-type test table, carry out defect detection to metal cylinder pole surface, position, the angle is independently adjustable after the linear array camera installation, height, the vertical height of low angle light source and transverse distance are independently adjustable, detection equipment's flexibility has been improved. To roll-type detection platform utilization divide the material roller to rotate and separate metal cylinder pole one by one, and the frictional force on surface drives metal cylinder pole rotation when recycling the detection roller rotation to metal cylinder pole surperficial all-round detection, this kind of mode has improved the continuity of metal cylinder pole material loading, has guaranteed the integrality that detects the surface, has improved the detection precision and the detection efficiency of metal cylinder pole.
Drawings
FIG. 1 is a schematic view of an overall structure of an embodiment of a device for detecting surface defects of a metal cylindrical rod based on a line-scan camera;
FIG. 2 is a partial schematic view of a linear array camera mounting bracket in the metal cylindrical rod surface defect detecting device based on the linear array camera of the present invention;
FIG. 3 is a partial schematic view of a high-angle light source installation adjusting frame and a low-angle light source installation adjusting frame in the metal cylindrical rod surface defect detecting device based on the line scan camera of the present invention;
FIG. 4 is a partial schematic view of a pair-roller type inspection table in the device for detecting surface defects of metal cylindrical rods based on a line camera according to the present invention;
Detailed Description
In the description of the present invention, it is necessary to explain the following keywords, and the directional words "front", "rear", "left", "right", "upper", "lower", "horizontal", "vertical", etc. are all based on the orientation and positional relationship of the drawings, mainly for the purpose of conciseness and clarity of description of the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
The utility model will be further described with reference to the following examples and the accompanying drawings, in which the examples are provided as a part of the embodiments of the utility model, and not as an exhaustive description of the utility model, and the embodiments described herein are provided as an illustration only.
As shown in fig. 1, it is a schematic view of an entire metal cylindrical rod surface defect detecting apparatus 10 based on a line camera;
a metal cylindrical rod surface defect detection device 10 based on a line scan camera comprises: the detection device comprises a welding outer frame (100), a linear array camera mounting bracket (200), a high-angle polishing light source mounting adjusting frame (300), a low-angle polishing light source mounting adjusting frame (400), a double-roller type detection table (500) and a device base (600);
specific parts mounting embodiments the details of the mounting can be seen in figures 2, 3 and 4 respectively.
As shown in fig. 2, a linear array camera mounting bracket (200) of a linear array camera-based metal cylindrical rod surface defect detecting device comprises: the linear array camera comprises a first connecting plate (201), a linear guide rail (202), a single-shaft X translation sliding table (203), a single-shaft Y translation sliding table (204), a single-shaft Z translation sliding table (205), a rotating platform (206), a second connecting plate (207) and a linear array camera (208).
The linear array camera mounting bracket (200) works according to the following principle:
the first connecting plate (201) is fixedly connected under the linear guide (202), the linear guide (202) can realize large-range adjustment on the position of the linear array camera (208) in the front and back direction, so that the camera can be rapidly adjusted to be close to a specified position, the single-shaft X translation sliding table (203) is fixedly installed below the first connecting plate (201), the left-right central symmetry of the position of the linear array camera (208) is ensured, the single-shaft Y translation sliding table (204) is fixedly installed below the single-shaft X translation sliding table (203), the position of the linear array camera (208) for image acquisition is adjusted, the single-shaft Z translation sliding table (205) is fixedly installed below the single-shaft Y translation sliding table (204), the size of the width of the visual field of the linear array camera (208) is adjusted by moving up and down, the rotary platform (206) is connected with the single-shaft Z translation sliding table (205), and the detection quality of a metal cylinder product can be adjusted by adjusting the rotary center of the linear array camera (208), the second connecting plate (207) is fixedly arranged right below the rotating platform (206), and the linear array camera (208) is fixedly arranged below the second connecting plate (207), so that the stability of drawing collection of the linear array camera (208) is ensured.
As shown in fig. 3, it is a light source mounting adjusting frame in a metal cylindrical rod surface defect detecting device based on a line camera, and mainly includes two parts, namely a high-angle light source mounting adjusting frame (300) and a low-angle light source mounting adjusting frame (400): the device comprises a strip-shaped light source (301), a light source installation sheet metal part (302), an angle adjusting sheet metal part (303), a horizontal linear guide rail (304), a vertical linear guide rail (305), a line scanning light source (401), a light source installation sheet metal part (402), an angle adjusting sheet metal part (403) and a horizontal linear guide rail (404).
The working principles of the high-angle polishing light source mounting and adjusting frame (300) and the low-angle polishing light source mounting and adjusting frame (400) are as follows:
the main installation mode of the high-angle polishing light source installation adjusting frame (300) is as follows: install in light source installation sheet metal component (302) top bar light source (301), light source installation sheet metal component (302) and angle modulation sheet metal component (303) are connected, effective adjustment bar light source (301) and linear array camera (208) incident light angle, and on horizontal linear guide (304) were located in angle modulation sheet metal component (303), through horizontal linear guide (304) are right the regulation of bar light source (301) relative distance is far and near is adjusted the size of incident light concentration and divergence, connects jointly on perpendicular linear guide (305) after above-mentioned part connection is accomplished. The size of the area of the light-emitting surface is increased or decreased by vertical translation on the linear guide (305).
The low-angle light source installation adjusting frame (400) is mainly installed in the following way: light source (401) are swept to line and are installed in light source installation sheet metal component (402) top, light source installation sheet metal component (402) are connected with angle modulation sheet metal component (403), effectively adjust light source (401) and linear array camera (208) incident light angle are swept to line, and on horizontal linear guide (404) was located in angle modulation sheet metal component (403), through horizontal linear guide (404) are right light source (401) relative distance far and near's regulation is swept to the size of incident light concentration divergence, connects on perpendicular linear guide (305) jointly after the completion was connected to above-mentioned part. The size of the area of the light-emitting surface is increased or decreased by vertical translation on the linear guide (305).
As shown in fig. 4, the pair-roller type inspection table (500) of the metal cylindrical rod surface defect inspection device based on the line camera comprises: the material sorting device comprises a coupler (501), a driving detection roller (502), a driven detection roller (503), a feeding connecting plate (504), a transition feeding connecting plate (505), a material sorting roller (506), a composite mounting plate (507), a coupler (508), a coupler (509), a rotary cylinder (510), a material sorting servo motor (511), a driven servo motor (512), a double-motor mounting plate (513), a detection roller mounting plate (514), a linear guide rail (515), a material sorting screening plate (516), a single-shaft translation sliding table (517), a sliding table mounting plate (518), a translation mounting plate (519), a mounting base plate (520), a single-motor mounting plate (521) and a driving servo motor (522).
The working principle of the double-roller type detection table (500) is as follows:
mounting plate (520) is connected on device base (600), slip table mounting panel (518) fixed mounting in under mounting plate (520), unipolar translation slip table (517) fixed mounting in directly over slip table mounting panel (518), translation mounting panel (519) install in unipolar translation slip table (517) and linear guide (515) top, and can pass through metal piston rod after unipolar translation slip table (517) back-and-forth movement will detect the completion discharges, single motor mounting panel (521) fixed mounting in translation mounting panel (519) top, active servo motor (522) install in single motor mounting panel (521) left side is connected with active detection roller (502) through shaft coupling (501), works as when active servo motor (522) is rotated active detection roller (502) also follows the rotation, active detection roller (502) alternates to be installed between detection roller mounting panel (514), double-motor mounting panel (513) install in mounting plate (520) top, double-motor mounting panel (513) right flank is equipped with driven servo motor (512) and divides material servo motor (511), wherein driven detection roller (503) are connected through shaft coupling (509) in driven servo motor (512), divide material servo motor (511) to be connected through shaft coupling (508) and branch material roller (506). The driven detection roller (503) and the material distribution roller (506) are both arranged between the composite mounting plates (507), and the rotary cylinders (510) are arranged on two sides of the composite mounting plates (507).
When the metal cylindrical rod enters from a feeding connecting plate (504) arranged behind a composite mounting plate (507), a material distribution servo motor (511) drives a material distribution roller (506) to rotate, the metal cylindrical rod enters the material distribution roller (506) one by one and then rotates to be discharged through the material distribution roller (506), the metal cylindrical rod reaches a position between a driven detection roller (503) and a driving detection roller (502) after passing through a transition feeding connecting plate (505) arranged between the composite mounting plates (507), the driven detection roller (503) and the driving detection roller (502) rotate in the same direction simultaneously and then drive the metal cylindrical rod to rotate, when a linear array camera (208) finishes collecting images on the surface of the metal cylindrical rod, relevant judgment is made, whether the surface of the metal cylindrical rod has defects or not, if the surface defects do not exist, a single-shaft translation sliding table (517) drives a coupler (501), the driving detection roller (502), a detection roller mounting plate (514), Translation mounting panel (519), single motor mounting panel (521), initiative servo motor (522) outwards remove jointly, and the metal cylinder pole falls from the front through installing in picking material screening board (516) between revolving cylinder (510), otherwise picks material screening board (516) and lifts up the back through connected revolving cylinder (510), and unipolar translation slip table (517) drives shaft coupling (501), initiative detection roller (502), detection roller mounting panel (514), translation mounting panel (519), single motor mounting panel (521), initiative servo motor (522) outwards remove jointly, and the metal cylinder pole rear falls.
In summary, according to the present invention: a metal cylindrical rod surface defect detection device based on a linear array camera can detect metal cylindrical rod surface defects with different lengths and different outer diameters, such as scratches, longitudinal line injuries, extrusion injuries and the like. Meanwhile, the detection device can replace manual detection, the detection efficiency and the detection precision are improved, the automation degree of enterprises is further enhanced, and the production efficiency is improved.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122186179.2U CN215613339U (en) | 2021-09-10 | 2021-09-10 | A device for detecting surface defects of metal cylindrical rods based on line scan cameras |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122186179.2U CN215613339U (en) | 2021-09-10 | 2021-09-10 | A device for detecting surface defects of metal cylindrical rods based on line scan cameras |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115165903A (en) * | 2022-07-11 | 2022-10-11 | 湖北工业大学 | Axle type part surface defect testing platform |
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- 2021-09-10 CN CN202122186179.2U patent/CN215613339U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115165903A (en) * | 2022-07-11 | 2022-10-11 | 湖北工业大学 | Axle type part surface defect testing platform |
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