Detection device for metal plate defect detection

Abstract

The utility model discloses a detection device for metal plate defect detection in the technical field of metal plate detection, which comprises a detection bin, an electric cabinet fixedly mounted at the upper end of the detection bin, an adjusting mechanism arranged in the middle of the detection bin, detection mechanisms arranged at the left end and the right end of the detection bin, and a first clamping plate arranged at the lower layer in the detection bin, a first clamping plate is arranged on the upper layer of the interior of the detection bin, a first rubber mat is fixedly mounted on the inner wall of the first clamping plate, a second clamping plate is arranged on the upper layer of the interior of the detection bin, a second rubber mat is fixedly mounted on the inner wall of the second clamping plate, and a first mounting bin is fixedly mounted at the left end of the detection bin. According to the device, clamping rotation of the adjusting mechanism is combined with multi-dimensional optical scanning of the detection mechanism, so that the problems of low manual detection efficiency and poor precision are solved, automatic and high-precision detection of metal plate surface defects is realized, the detection efficiency is improved, the omission ratio is effectively reduced, and the reliability of product quality control is remarkably enhanced.

Description

Technical Field

[0001] This utility model relates to the field of metal plate inspection technology, specifically a detection device for detecting defects in metal plates. Background Technology

[0002] Metal sheet is a flat material with a certain thickness and area, made from metal raw materials through processes such as rolling and cutting. It is widely used in industries such as construction, machinery manufacturing, automobiles, and shipbuilding. It has good physical properties and corrosion resistance, and is often used to construct structural components, decorative materials, and protective coverings. Metal sheet defect detection refers to the process of systematically identifying and evaluating possible defects on or inside the surface of a metal sheet, such as cracks, holes, inclusions, scratches, and other abnormalities, using various technologies and methods. The aim is to ensure that the quality of the metal sheet meets specific standard requirements and improve the reliability and safety of the product.

[0003] Based on existing metal plate defect detection techniques, it has been found that manual inspection of metal plates often has certain limitations in current practice. Manual inspection relies on personal experience and subjective judgment, which may lead to missed or false detections, thus affecting the accuracy of the inspection results. In particular, in actual operation, manual inspection is not only inefficient and difficult to meet the rapid inspection needs of large-scale production lines, but also has limited ability to identify minor or inconspicuous defects due to human fatigue and visual limitations. This undoubtedly increases the uncertainty of product quality control.

[0004] Based on this, the present invention designs a detection device for detecting defects in metal plates to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a detection device for detecting defects in metal plates, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A detection device for detecting defects in metal plates includes a detection chamber. An electrical control box is fixedly installed at the upper end of the detection chamber. An adjustment mechanism is provided in the middle of the detection chamber. Detection mechanisms are provided at both the left and right ends of the detection chamber. The adjustment mechanism includes a first clamping plate, a first rubber pad, a second clamping plate, and a second rubber pad. The lower layer inside the detection chamber is provided with the first clamping plate, and the first rubber pad is fixedly installed on the inner wall of the first clamping plate. The upper layer inside the detection chamber is provided with the second clamping plate, and the second rubber pad is fixedly installed on the inner wall of the second clamping plate. The detection mechanism includes a first mounting chamber and a first linear CCD camera. The first mounting chamber is fixedly installed at the left end of the detection chamber, and the first linear CCD camera is fixedly installed inside the first mounting chamber.

[0008] Optionally, the adjustment mechanism further includes a first connecting plate and a connecting seat, wherein the first connecting plate is fixedly installed at the lower end of the first clamping plate, and the connecting seat is fixedly installed at the middle part of the first connecting plate.

[0009] Optionally, a drive motor is provided below the connecting seat, and the transmission end of the drive motor is fixedly connected to the connecting seat.

[0010] Optionally, a second connecting plate is fixedly installed at the upper end of the second clamping plate, and a rotating sleeve is fixedly installed in the middle of the second connecting plate, with a rotating block provided inside the rotating sleeve.

[0011] Optionally, the upper end of the rotating block is connected to a cylinder body, and a mounting bracket is fixedly installed on the upper end of the cylinder body. The mounting bracket is fixedly installed on the outer wall of the testing chamber.

[0012] Optionally, a limiting slide plate is fixedly installed at the lower end of the first clamping plate, and a limiting groove is formed on the inner wall of the detection chamber, with the limiting slide plate slidably connected to the limiting groove.

[0013] Optionally, the detection mechanism further includes a second mounting chamber and a second linear CCD camera. The second mounting chamber is fixedly installed at the right end of the detection chamber, and the second linear CCD camera is fixedly installed inside the second mounting chamber.

[0014] Optionally, a first supplementary light and a second supplementary light are fixedly installed at the left end of the inside of the detection chamber, and a third supplementary light and a fourth supplementary light are fixedly installed at the right end of the inside of the detection chamber.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. In this utility model, an adjustment mechanism is provided. The beneficial effects of the adjustment mechanism are reflected in two aspects: First, the double clamping plate structure driven by the cylinder body is combined with the flexible rubber pad, which not only ensures the uniform distribution of clamping force to prevent the plate from deforming, but also adapts to the rapid positioning of metal plates of different thicknesses; Second, through the rotation structure composed of the drive motor and the rotating sleeve, combined with the guide design of the limiting slide and the slide, the stable rotational movement required for large-scale detection of metal plates is realized.

[0017] 2. In this utility model, a detection mechanism is provided. The dual linear array CCD camera is symmetrically arranged to simultaneously acquire images of both sides of the metal plate. Combined with the four-way uniform supplementary lighting of the first to fourth supplementary lights, the detection blind spots are effectively eliminated and the imaging contrast of small defects is enhanced. The high-resolution scanning mode of the linear array CCD, combined with the algorithm processing of the electrical control box, can accurately identify defects on the surface of the metal plate, and the detection accuracy is several times higher than that of manual detection. Attached Figure Description

[0018] Figure 1 This is a three-dimensional front view structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of this utility model from a frontal view.

[0020] Figure 3 This is a three-dimensional top view of the structure of this utility model;

[0021] Figure 4 This is a top view of the structure of this utility model;

[0022] Figure 5 This is a three-dimensional sectional view of the structure of this utility model. Figure 1 ;

[0023] Figure 6 This is a three-dimensional sectional view of the structure of this utility model. Figure 2 ;

[0024] Figure 7 This is a three-dimensional sectional view of the structure of this utility model. Figure 3 ;

[0025] Figure 8 This is a three-dimensional sectional view of the structure of this utility model. Figure 4 .

[0026] In the diagram: 1. Detection chamber; 2. Adjustment mechanism; 201. First clamping plate; 202. First rubber pad; 203. First connecting plate; 204. Connecting seat; 205. Drive motor; 206. Second clamping plate; 207. Second rubber pad; 208. Second connecting plate; 209. Rotating sleeve; 210. Rotating block; 211. Mounting bracket; 212. Cylinder body; 213. Limiting slide plate; 214. Limiting slide groove; 3. Detection mechanism; 301. First mounting chamber; 302. First linear CCD camera; 303. Second mounting chamber; 304. Second linear CCD camera; 305. First supplementary light; 306. Second supplementary light; 307. Third supplementary light; 308. Fourth supplementary light; 4. Electrical control box. Detailed Implementation

[0027] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-8 In this embodiment of the present invention, a detection device for detecting defects in a metal plate includes a detection chamber 1. An electrical control box 4 is fixedly installed at the upper end of the detection chamber 1. An adjustment mechanism 2 is provided in the middle of the detection chamber 1. Detection mechanisms 3 are provided at both the left and right ends of the detection chamber 1. The adjustment mechanism 2 includes a first clamping plate 201, a first rubber pad 202, a second clamping plate 206, and a second rubber pad 207. The lower layer inside the detection chamber 1 is provided with the first clamping plate 201, and the first rubber pad 202 is fixedly installed on the inner wall of the first clamping plate 201. The upper layer inside the detection chamber 1 is provided with the second clamping plate 206, and the second rubber pad 207 is fixedly installed on the inner wall of the second clamping plate 206. The adjustment mechanism 2 also includes a first connecting plate 203 and a connecting seat 204. The lower end of the first clamping plate 201 is fixedly installed with the first connecting plate 203. 03. A connecting seat 204 is fixedly installed in the middle of the first connecting plate 203. A drive motor 205 is provided below the connecting seat 204. The transmission end of the drive motor 205 is fixedly connected to the connecting seat 204. A second connecting plate 208 is fixedly installed at the upper end of the second clamping plate 206. A rotating sleeve 209 is fixedly installed in the middle of the second connecting plate 208. A rotating block 210 is provided inside the rotating sleeve 209. A cylinder body 212 is connected to the upper end of the rotating block 210. A mounting bracket 211 is fixedly installed at the upper end of the cylinder body 212. The mounting bracket 211 is fixedly installed on the outer wall of the detection chamber 1. A limiting slide plate 213 is fixedly installed at the lower end of the first clamping plate 201. A limiting groove 214 is opened on the inner wall of the detection chamber 1. The limiting slide plate 213 is slidably connected to the limiting groove 214.

[0031] See Figure 1 , Figure 7 and Figure 8 Initially, before activation, the drive motor 205 and cylinder 212 need to be powered on and connected to the control terminal. When activated, the metal plate is first placed on the first clamping plate 201 and the first rubber pad 202. Then, the cylinder 212 is activated to push the second clamping plate 206 and the second rubber pad 207 downward, thereby clamping the metal plate tightly between the first clamping plate 201 and the second clamping plate 206. At this time, the left side of the metal plate can be directly photographed and scanned by the first linear CCD camera 302, and the right side of the metal plate can also be directly photographed and scanned by the second linear CCD camera 304. In order to perform multi-range scanning operations, the drive motor 205 is activated to drive the first clamping plate 201 and the first rubber pad 202 to rotate and drive the metal plate to rotate. At the same time, the linear CCD camera can perform scanning and detection operations on multiple angles of the metal plate, thereby achieving a more accurate detection effect.

[0032] The adjustment mechanism 2 adopts a clamping structure and a rotating structure. The clamping structure is driven by a cylinder and is equipped with clamping plates (first clamping plate 201 and second clamping plate 206) to effectively clamp the metal plate quickly in the middle, achieving the effect of quickly positioning the metal plate. The rotating structure can drive the upper clamping plates (first clamping plate 201 and second clamping plate 206) to rotate through the drive motor 205 and the connecting seat 204, thereby driving the metal plate to rotate, so that the detection mechanism 3 can perform full-range scanning detection on the surface of the metal plate.

[0033] The testing mechanism 3 includes a first mounting chamber 301 and a first linear array CCD camera 302. The first mounting chamber 301 is fixedly installed at the left end of the testing chamber 1, and the first linear array CCD camera 302 is fixedly installed inside the first mounting chamber 301. The testing mechanism 3 also includes a second mounting chamber 303 and a second linear array CCD camera 304. The second mounting chamber 303 is fixedly installed at the right end of the testing chamber 1, and the second linear array CCD camera 304 is fixedly installed inside the second mounting chamber 303. The first supplementary light 305 and the second supplementary light 306 are fixedly installed at the left end of the inside of the testing chamber 1, and the third supplementary light 307 and the fourth supplementary light 308 are fixedly installed at the right end of the inside of the testing chamber 1.

[0034] See Figure 1 , Figure 5 , Figure 6 and Figure 7 Before activation, the first linear CCD camera 302, the second linear CCD camera 304, the first fill light 305, the second fill light 306, the third fill light 307, and the fourth fill light 308 need to be powered on and connected to the control terminal. When activated, the first linear CCD camera 302 and the second linear CCD camera 304 need to be started and scan the metal plate. At the same time, the first fill light 305, the second fill light 306, the third fill light 307, and the fourth fill light 308 provide supplementary lighting to the metal plate to ensure clearer shooting and scanning operations of the linear CCD camera.

[0035] Among them, the inspection agency 3 uses a linear CCD camera to scan the metal plate, which can identify and record surface defects of the metal plate, such as oxidation, peeling, and missing coating. It also has four sets of supplementary lights to supplement the ambient light, so as to facilitate the linear CCD camera to perform more detailed scanning operations on the metal plate, and also to facilitate workers to observe and operate the metal plate.

[0036] The working principle of this utility model is as follows: The detection device for metal plate defect detection achieves efficient detection through the coordinated work of the adjustment mechanism 2 and the detection mechanism 3 in the detection chamber 1. First, the metal plate to be tested is placed on the first clamping plate 201 and the first rubber pad 202. The cylinder body 212 is started to drive the second clamping plate 206 and the second rubber pad 207 to press down. The clamping force achieves precise positioning of the metal plate. Subsequently, the first linear CCD camera 302 and the second linear CCD camera 304 scan the front and back sides of the metal plate simultaneously under the uniform illumination of four sets of supplementary lights. When multi-angle detection is required, the drive motor 205 drives the first clamping plate 201 and the metal plate rotation limiting slide plate 213 to slide along the limiting slide groove 214 through the connecting seat 204 to ensure smooth rotation. At this time, the linear CCD camera can continuously capture surface details from different angles and effectively identify defects such as oxidation, peeling, and missing coating.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A detection device for detecting defects in metal plates, comprising a detection chamber (1), wherein an electrical control box (4) is fixedly installed at the upper end of the detection chamber (1), characterized in that: An adjustment mechanism (2) is provided in the middle of the detection chamber (1), and detection mechanisms (3) are provided at both the left and right ends of the detection chamber (1). The adjustment mechanism (2) includes a first clamping plate (201), a first rubber pad (202), a second clamping plate (206), and a second rubber pad (207). The lower layer inside the detection chamber (1) is provided with the first clamping plate (201), and the first rubber pad (202) is fixedly installed on the inner wall of the first clamping plate (201). The upper layer inside the detection chamber (1) is provided with the second clamping plate (206), and the second rubber pad (207) is fixedly installed on the inner wall of the second clamping plate (206). The detection mechanism (3) includes a first mounting chamber (301) and a first linear array CCD camera (302). The left end of the detection chamber (1) is fixedly installed with the first mounting chamber (301), and the first linear array CCD camera (302) is fixedly installed inside the first mounting chamber (301).

2. The detection device for detecting defects in metal plates according to claim 1, characterized in that: The adjustment mechanism (2) further includes a first connecting plate (203) and a connecting seat (204). The first connecting plate (203) is fixedly installed at the lower end of the first clamping plate (201), and the connecting seat (204) is fixedly installed at the middle part of the first connecting plate (203).

3. The detection device for detecting defects in metal plates according to claim 2, characterized in that: A drive motor (205) is provided below the connecting seat (204), and the transmission end of the drive motor (205) is fixedly connected to the connecting seat (204).

4. The detection device for detecting defects in a metal plate according to claim 3, characterized in that: The upper end of the second clamping plate (206) is fixedly installed with a second connecting plate (208), and the middle part of the second connecting plate (208) is fixedly installed with a rotating sleeve (209). The rotating sleeve (209) is provided with a rotating block (210) inside.

5. The detection device for detecting defects in a metal plate according to claim 4, characterized in that: The upper end of the rotating block (210) is connected to a cylinder body (212), and a mounting bracket (211) is fixedly installed on the upper end of the cylinder body (212). The mounting bracket (211) is fixedly installed on the outer wall of the detection chamber (1).

6. The detection device for detecting defects in metal plates according to claim 1, characterized in that: The lower end of the first clamping plate (201) is fixedly installed with a limiting slide plate (213), and a limiting groove (214) is opened on the inner wall of the detection chamber (1). The limiting slide plate (213) is slidably connected to the limiting groove (214).

7. The detection device for detecting defects in metal plates according to claim 1, characterized in that: The detection mechanism (3) also includes a second mounting chamber (303) and a second linear CCD camera (304). The second mounting chamber (303) is fixedly installed at the right end of the detection chamber (1), and the second linear CCD camera (304) is fixedly installed inside the second mounting chamber (303).

8. The detection device for detecting defects in a metal plate according to claim 1, characterized in that: The left end of the detection chamber (1) is fixedly equipped with a first supplementary light (305) and a second supplementary light (306), and the right end of the detection chamber (1) is fixedly equipped with a third supplementary light (307) and a fourth supplementary light (308).

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