Visual inspection system and visual inspection device thereof
By designing a multi-degree of freedom adjustment structure in the visual detection system, multi-angle adjustment of the detection camera and light source module is achieved, which solves the problem of low detection accuracy in traditional systems and improves the detection accuracy and product quality compliance.
Patent Information
- Application Number
- CN202421542251.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-01
AI Technical Summary
Traditional visual inspection systems cannot meet the needs of multiple defect detection due to the small adjustable range of light sources and cameras, resulting in a decrease in detection accuracy and cannot ensure that the product meets the manufacturer's quality standards.
A visual detection system is designed, which includes a detection camera and a multi-degree of freedom adjustment structure. By rotating the first rotating member, the second rotating member and the third rotating member rotating in different directions, the rotation of the detection camera is realized by multiple degrees of freedom, thereby increasing the adjustment range and adjustment angle of the detection camera. At the same time, the light source module adjusts the illumination angle through the adjustment structure to ensure that images are acquired from multiple angles.
Through the multi-degree of freedom adjustment structure, the adjustment range and angle of the detection camera are improved, the detection accuracy is enhanced, and the multi-defect detection needs can be more accurately met, ensuring that the product quality meets the standards.
Smart Images
Figure CN222913508U_ABST
Abstract
Description
Technical Field
[0001] The embodiments of the present utility model relate to the technical field of industrial vision automation detection, and particularly to a vision detection system and a vision detection device thereof. Background Art
[0002] Modern industrial production has stricter and more refined control over product quality. A vision detection system is a technology that uses computer image processing technology to simulate the visual function of humans to identify, detect, and judge objects. Almost all industrial production fields require the application of vision detection systems for detection, especially those vision tasks with high requirements for speed, accuracy, or reliability that require the use of industrial vision systems.
[0003] In traditional vision detection systems, due to the small adjustable range of the light source and the camera, they cannot meet the requirements of multi-defect detection, cannot ensure that products meet the quality standards of manufacturers, and reduce detection accuracy. Summary of the Utility Model
[0004] In view of the deficiencies of the prior art, the present utility model provides a vision detection system and a vision detection device thereof, which can meet the multi-degree-of-freedom adjustment of the light source and the camera.
[0005] In order to achieve the above object, the present utility model adopts the following technical solutions:
[0006] A vision detection device includes a detection camera and a first adjustment structure. The first adjustment structure includes a first frame and a fixed frame. The fixed frame includes a first rotating member, a second rotating member, a third rotating member, and a fixing plate. The first rotating member is rotatably connected to the first frame. One end of the second rotating member is connected to the first rotating member, and the other end is rotatably connected to the fixing plate. The third rotating member is rotatably connected to the fixing plate, and the detection camera is connected to the third rotating member. Among them, the rotation directions of the first rotating member, the second rotating member, and the third rotating member are different from each other.
[0007] As one of the implementation manners, the first adjustment structure includes a first slider, and the first slider is slidably arranged along the extension direction of the first frame, and the first rotating member is rotatably connected to the first slider.
[0008] As one of the implementation manners, the first adjustment structure includes a first guide rail and a second guide rail. The first frame is slidably connected to the first guide rail, and the first guide rail is slidably connected to the second guide rail. Among them, the extension directions of the first guide rail, the second guide rail, and the first frame are different from each other.
[0009] As one of the implementation manners, the fixed frame includes an adjusting screw rod and a connecting member. The adjusting screw rod is rotatably connected to the fixing plate, and the connecting member is rotatably connected to the fixing plate. And the third rotating member is connected to the connecting member. The adjusting screw rod is in threaded connection with the connecting member, and the adjusting screw rod is used to drive the connecting member to rotate.
[0010] As one of the implementation manners, the vision detection device includes a second adjusting structure and a light source module. The light source module is connected to the second adjusting structure, and the second adjusting structure is used to adjust the irradiation angle of the light source module.
[0011] As one of the implementation manners, the second adjusting structure includes a second frame body, a fourth rotating member and an adjusting plate. The light source module is connected to the adjusting plate and can move along the extending direction of the adjusting plate. The adjusting plate is connected to the fourth rotating member, and the fourth rotating member is movably connected to the second frame body.
[0012] As one of the implementation manners, the second adjusting structure includes a second slider. The second slider is slidably arranged along the extending direction of the second frame body, and the fourth rotating member is rotatably connected to the second slider.
[0013] As one of the implementation manners, the second adjusting structure includes a third guide rail. The second frame body is slidably connected to the third guide rail. Wherein, the extending directions of the third guide rail, the adjusting plate and the second frame body are different from each other.
[0014] As one of the implementation manners, the second adjusting structure includes a driving member. The driving member is rotatably connected to the second frame body and is in threaded connection with the second slider.
[0015] Another object of the present utility model is to provide a vision detection system, including the vision detection device in any one of the above embodiments and its main frame, and the vision detection device is connected to the main frame.
[0016] The beneficial effects of the present utility model are as follows: The embodiment of the present application provides a vision detection system and its vision detection device, including a detection camera and a first adjustment structure. The first adjustment structure includes a first frame and a fixed frame. The fixed frame includes a first rotating member, a second rotating member, a third rotating member, and a fixing plate. The first rotating member is rotatably connected to the first frame. One end of the second rotating member is connected to the first rotating member, and the other end is rotatably connected to the fixing plate. The third rotating member is rotatably connected to the fixing plate, and the detection camera is connected to the third rotating member. Among them, the rotation directions of the first rotating member, the second rotating member, and the third rotating member are different from each other. Compared with the prior art, in the present application, the first rotating member, the second rotating member, and the third rotating member that rotate in different directions are used to realize the rotation of the detection camera in multiple degrees of freedom, so as to increase the adjustment range and adjustment angle of the detection camera, enabling it to obtain images from multiple angles and improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 FIG. shows a schematic structural diagram of the vision detection device according to an embodiment of the present utility model;
[0018] Figure 2 FIG. shows a schematic structural diagram of the first adjustment structure according to an embodiment of the present utility model;
[0019] Figure 3 is Figure 1 an enlarged view of part B in;
[0020] Figure 4 is Figure 1 an enlarged view of part A in.
[0021] Reference numerals: 1, detection camera; 2, first adjustment structure; 21, first frame; 22, fixed frame; 23, first slider; 24, first guide rail; 25, second guide rail; 221, first rotating member; 222, second rotating member; 223, third rotating member; 224, fixing plate; 225, adjustment screw; 226, connecting member; 3, second adjustment structure; 31, second frame; 32, fourth rotating member; 33, adjustment plate; 34, second slider; 35, third guide rail; 36, driving member; 4, light source module. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0022] In the present utility model, the terms "arranged", "provided with", and "connected" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral structure; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, or there may be internal communication between two devices, components, or parts. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0023] The orientation or positional relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to this application.
[0024] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of this application, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.
[0025] Moreover, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this utility model can be understood according to specific circumstances.
[0026] In order to make the objectives, technical solutions and advantages of this utility model clearer and more understandable, the following further details this utility model in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not used to limit this utility model.
[0027] Refer to Figure 1 , for the sake of clear description, Figure 1 , in which X, Y, and Z respectively represent the length direction, width direction, and height direction; an embodiment of this application provides a visual detection device, including a detection camera 1 and a first adjustment structure 2. The first adjustment structure 2 includes a first frame body 21 and a fixed frame 22. The fixed frame 22 includes a first rotating member 221, a second rotating member 222, a third rotating member 223, and a fixing plate 224. The first rotating member 221 is rotatably connected to the first frame body 21. One end of the second rotating member 222 is connected to the first rotating member 221, and the other end is rotatably connected to the fixing plate 224. The third rotating member 223 is rotatably connected to the fixing plate 224, and the detection camera 1 is connected to the third rotating member 223. Among them, the rotation directions of the first rotating member 221, the second rotating member 222, and the third rotating member 223 are different from each other.
[0028] In practical applications, the detection camera 1 is responsible for acquiring image information during visual detection work. Therefore, the adjustment of the detection camera 1 is particularly important. In this application, a first rotating member 221, a second rotating member 222, and a third rotating member 223 are provided. The first rotating member 221 is rotatably connected to the first frame 21. One end of the second rotating member 222 is rotatably connected to the first rotating member 221, and the other end is connected to the fixing plate 224. The third rotating member 223 is rotatably connected to the fixing plate 224, and the detection camera 1 is connected to the third rotating member 223. In this way, when the operator rotates the first rotating member 221 relative to the first frame 21, specifically, the first rotating member 221 can rotate around the X-axis direction. The first rotating member 221 drives the second rotating member 222 to rotate, and further drives the fixing plate 224 and the third rotating member 223 to rotate, realizing a rotation with one degree of freedom. At the same time, the fixing plate 224 can rotate relative to the second rotating member 222. Specifically, the fixing plate 224 can rotate around the Y-axis direction, and further drives the third rotating member 223 to rotate, realizing a rotation with two degrees of freedom. And the third rotating member 223 can rotate relative to the fixing plate 224. Specifically, the third rotating member 223 can rotate around the Z-axis direction, and further drives the detection camera 1 to rotate, realizing a rotation with three degrees of freedom.
[0029] Compared with the prior art, in this application, the first rotating member 221, the second rotating member 222, and the third rotating member 223 that rotate in different directions are used to realize the rotation of the detection camera 1 with multiple degrees of freedom, so as to increase the adjustment range and adjustment angle of the detection camera 1, enabling it to acquire images from multiple angles and improving the detection accuracy.
[0030] Refer to Figure 2 , the first adjustment structure 2 includes a first slider 23. The first slider 23 is slidably arranged along the extending direction of the first frame 21, and the first rotating member 221 is rotatably connected to the first slider 23.
[0031] It should be noted that in addition to adjusting the angle between the detection camera 1 and the object to be measured, the visual detection device usually also needs to adjust the distance between the detection camera 1 and the object to be measured. Based on this, the first slider 23 is provided. The first slider is slidably connected to the first frame 21. Specifically, the first slider can slide along the Z-axis direction, and further drives the first rotating member 221 to slide along the Z-axis direction, realizing the adjustment of the distance between the detection camera 1 and the object to be measured.
[0032] It can be understood that in one embodiment, the first adjustment structure 2 may further include a driving screw. The driving screw is rotatably connected to the first frame 21 and is threadedly connected to the first slider 23. Rotating the driving screw can realize the sliding of the first slider 23. In some other embodiments, other methods can also be used to realize the sliding of the first slider 23. This application does not make any limitations in this regard.
[0033] Refer to again Figure 2, the first adjustment structure 2 includes a first guide rail 24 and a second guide rail 25. The first frame 21 is slidably connected to the first guide rail 24, and the first guide rail 24 is slidably connected to the second guide rail 25. Among them, the extending directions of the first guide rail 24, the second guide rail 25, and the first frame 21 are different from each other.
[0034] In practical applications, the vision detection device is usually installed on the main frame. The second guide rail 25 is connected to the main frame, and the first guide rail 24 is slidably connected to the second guide rail 25. The first guide rail 24 can extend along the X-axis direction, the second guide rail 25 can extend along the Y-axis direction, and the first frame 21 can extend along the Z-axis direction. In this way, the translational movement of the detection camera 1 in three degrees of freedom can be realized, further improving the detection accuracy.
[0035] Refer to Figure 3 , the fixed frame 22 includes an adjustment screw 225 and a connecting member 226. The adjustment screw 225 is rotatably connected to the fixed plate 224, the connecting member 226 is rotatably connected to the fixed plate 224, and the third rotating member 223 is connected to the connecting member 226. The adjustment screw 225 is threadedly connected to the connecting member 226, and the adjustment screw 225 is used to drive the connecting member 226 to rotate.
[0036] In order to realize the rotation of the third rotating member 223 relative to the fixed plate 224, this application provides an adjustment screw 225 and a connecting member 226. The connecting member 226 is rotatably connected to the fixed plate 224 and connected to the third rotating member 223. The adjustment screw 225 is threadedly connected to the connecting member 226. The operator only needs to rotate the adjustment screw 225 to drive the connecting member 226 to rotate, thereby realizing the rotation of the third rotating member 223.
[0037] It can be understood that the connection between the adjustment screw 225 and the connecting member 226 can adopt a worm and worm gear connection method, so that the function of driving the connecting member 226 to rotate by the adjustment screw 225 can be realized.
[0038] It should be noted that in some other embodiments, other directions can also be used to realize the rotation of the third rotating member 223.
[0039] Refer to again Figure 1 , the vision detection device includes a second adjustment structure 3 and a light source module 4. The light source module 4 is connected to the second adjustment structure 3, and the second adjustment structure 3 is used to adjust the irradiation angle of the light source module 4.
[0040] In practical applications, the detection camera 1 is used to obtain images, and the light source module 4 needs to provide necessary light so that the detection camera 1 can clearly capture the images of the objects. Therefore, this application provides a second adjustment structure 3 to adjust the irradiation angle of the light source module 4, so as to ensure that the light source module 4 irradiates the object to be measured from multiple angles.
[0041] Specifically, referring to Figure 4 , the second adjustment structure 3 includes a second frame body 31, a fourth rotating member 32, and an adjustment plate 33. The light source module 4 is connected to the adjustment plate 33 and can move along the extension direction of the adjustment plate 33; the adjustment plate 33 is connected to the fourth rotating member 32, and the fourth rotating member 32 is movably connected to the second frame body 31.
[0042] The adjustment plate 33 is provided with an adjustment groove along its extension direction, and the light source module 4 can be slidably connected to the adjustment groove, thereby realizing the adjustment of one degree of freedom of the light source module 4. And since the fourth rotating member 32 is movably connected to the second frame body 31, that is to say, the fourth rotating member 32 can move or rotate relative to the second frame body 31. When the fourth rotating member 32 moves relative to the second frame body 31, specifically when it moves along the extension direction of the second frame body 31, the fourth rotating member 32 drives the adjustment plate 33 to move, and then drives the light source module 4 to move, realizing the adjustment of two degrees of freedom of the light source module 4. When the fourth rotating member 32 rotates relative to the second frame body 31, it drives the adjustment plate 33 to rotate, and then drives the light source module 4 to rotate, realizing the adjustment of three degrees of freedom of the light source module 4.
[0043] Referring again to Figure 4 , the second adjustment structure 3 further includes a second slider 34. The second slider 34 is slidably arranged along the extension direction of the second frame body 31, and the fourth rotating member 32 is rotatably connected to the second slider 34.
[0044] More specifically, the fourth rotating member 32 realizes sliding along the extension direction of the second frame body 31 through the second slider 34, and the fourth rotating member 32 also rotates with the second slider 34, realizing the function that the fourth rotating member 32 can rotate relative to the second frame body 31.
[0045] Referring again to Figure 4 , the second adjustment structure 3 further includes a third guide rail 35. The second frame body 31 is slidably connected to the third guide rail 35. Among them, the extension directions of the third guide rail 35, the adjustment plate 33, and the second frame body 31 are different from each other.
[0046] In practical applications, the vision detection device is usually installed on the main frame. Therefore, the third guide rail 35 is also installed on the main frame. The second frame body 31 is slidably connected to the third guide rail 35. Then, the second frame body 31 can drive the light source module 4 to slide along the extension direction of the third guide rail 35, realizing the adjustment function of the light source module 4. The extension directions of the third guide rail 35, the adjustment plate 33, and the second frame body 31 are different from each other. For example, the third guide rail 35 can extend along the Y-axis direction, the adjustment plate 33 can extend along the X-axis direction, and the second frame body 31 can extend along the Z-axis direction. In this way, the adjustment function of the light source module 4 in different directions is realized, so that the light source module 4 can irradiate the object to be measured from multiple angles, and then ensure that all angles of the object to be measured can be detected.
[0047] Refer to again Figure 4 Moreover, the second adjustment structure 3 further includes a driving member 36 which is rotatably connected to the second frame body 31 and is in threaded connection with the second slider 34.
[0048] In one embodiment, the driving member 36 is rotatably connected to the second frame body 31. An operator only needs to rotate the driving member 36 to move the second slider 34, with more accurate operation direction and adjustment.
[0049] It should be noted that in practical applications, the vision detection device includes a plurality of detection cameras and a plurality of light source modules. The plurality of detection cameras are respectively arranged in different orientations, such as above and below the material to be measured. The plurality of light source modules are also arranged in different orientations, such as irradiating the object to be measured from a high angle or a low angle. Each detection camera is provided with a first adjustment structure, and each light source module is provided with a second adjustment structure to ensure that each detection camera has an adjustment function with six degrees of freedom, and each light source module has an adjustment function with four degrees of freedom.
[0050] The embodiment of the present application further provides a vision detection system, including the above-mentioned vision detection device and a main frame. The vision detection device is connected to the main frame. Specifically, the second guide rail 25 in the first adjustment structure 2 is connected to the main frame, and the third guide rail 35 in the second adjustment structure 3 is connected to the main frame, so as to realize the adjustment function of multiple degrees of freedom of the detection camera 1 and the light source module 4.
[0051] Different from the prior art, the embodiment of the present application provides a vision detection system and its vision detection device, including a detection camera 1 and a first adjustment structure 2. The first adjustment structure 2 includes a first frame body 21 and a fixed frame 22. The fixed frame 22 includes a first rotating member 221, a second rotating member 222, a third rotating member 223 and a fixing plate 224. The first rotating member 221 is rotatably connected to the first frame body 21. One end of the second rotating member 222 is connected to the first rotating member 221, and the other end is rotatably connected to the fixing plate 224. The third rotating member 223 is rotatably connected to the fixing plate 224, and the detection camera 1 is connected to the third rotating member 223. Among them, the rotation directions of the first rotating member 221, the second rotating member 222 and the third rotating member 223 are different from each other. Compared with the prior art, the present application realizes the rotation of multiple degrees of freedom of the detection camera 1 through the first rotating member 221, the second rotating member 222 and the third rotating member 223 rotating in different directions, so as to increase the adjustment range and adjustment angle of the detection camera 1, enabling it to obtain images from multiple angles and improving the detection accuracy.
[0052] The above are only specific embodiments of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present application.
Claims
1. A visual inspection device, characterized in that: include: Detection camera (1); The first adjustment structure (2) comprises a first frame (21) and a fixed frame (22), wherein the fixed frame (22) comprises a first rotating member (221), a second rotating member (222), a third rotating member (223) and a fixed plate (224), wherein the first rotating member (221) is rotatably connected to the first frame (21), one end of the second rotating member (222) is connected to the first rotating member (221), and the other end is rotatably connected to the fixed plate (224); the third rotating member (223) is rotatably connected to the fixed plate (224), and the detection camera (1) is connected to the third rotating member (223); Wherein, the rotation directions of the first rotating member (221), the second rotating member (222) and the third rotating member (223) are different from each other.
2. The visual inspection device according to claim 1, characterized in that: The first adjustment structure (2) comprises a first slider (23), the first slider (23) is slidably arranged along the extension direction of the first frame (21), and the first rotating member (221) is rotationally connected to the first slider (23).
3. The visual inspection device according to claim 2, characterized in that: The first adjustment structure (2) comprises a first guide rail (24) and a second guide rail (25), the first frame (21) is slidably connected to the first guide rail (24), and the first guide rail (24) is slidably connected to the second guide rail (25), wherein the extension directions of the first guide rail (24), the second guide rail (25) and the first frame (21) are different from each other.
4. The visual inspection device according to claim 1, characterized in that: The fixed frame (22) comprises an adjusting screw (225) and a connecting member (226); the adjusting screw (225) is rotatably connected to the fixed plate (224); the connecting member (226) is rotatably connected to the fixed plate (224); and the third rotating member (223) is connected to the connecting member (226); the adjusting screw (225) is threadedly connected to the connecting member (226); and the adjusting screw (225) is used to drive the connecting member (226) to rotate.
5. The visual inspection device according to claim 1, characterized in that: The visual detection device comprises a second adjustment structure (3) and a light source module (4), wherein the light source module (4) is connected to the second adjustment structure (3), and the second adjustment structure (3) is used to adjust the irradiation angle of the light source module (4).
6. The visual inspection device according to claim 5, characterized in that: The second adjustment structure (3) comprises a second frame (31), a fourth rotating member (32) and an adjustment plate (33); the light source module (4) is connected to the adjustment plate (33) and can move along the extension direction of the adjustment plate (33); the adjustment plate (33) is connected to the fourth rotating member (32), and the fourth rotating member (32) is movably connected to the second frame (31).
7. The visual inspection device according to claim 6, characterized in that: The second adjustment structure (3) comprises a second slider (34), the second slider (34) is slidably arranged along the extension direction of the second frame (31), and the fourth rotating member (32) is rotationally connected to the second slider (34).
8. The visual inspection device according to claim 6, characterized in that: The second adjustment structure (3) comprises a third guide rail (35), and the second frame (31) is slidably connected to the third guide rail (35), wherein the extension directions of the third guide rail (35), the adjustment plate (33) and the second frame (31) are different from each other.
9. The visual inspection device according to claim 7, characterized in that: The second adjustment structure (3) comprises a driving member (36), wherein the driving member (36) is rotationally connected to the second frame (31) and is threadedly connected to the second sliding block (34).
10. A visual inspection system, characterized in that: It comprises the visual inspection device according to any one of claims 1 to 9 and a main frame, wherein the visual inspection device is connected to the main frame.