CCD visual multi-position detection mechanism

Abstract

The utility model belongs to the field of visual detection, particularly relates to a CCD (charge coupled device) visual multi-position detection mechanism, and discloses the detection mechanism which comprises a transmission device consisting of a vertical transmission part and a transverse transmission part, and a first visual assembly and a second visual assembly which are arranged on the transmission device, the first visual assembly and the second visual assembly are each composed of a lens and a light source. When the light source of the first visual assembly and the light source of the second visual assembly are located on the same vertical line, the detection mechanism performs coaxial detection; when the light source of the first visual assembly and the light source of the second visual assembly are not located on the same vertical line, the detection mechanism performs dislocation detection; the detection mechanism not only supports a coaxial detection mode, but also supports a dislocation detection mode. Therefore, the detection system can adapt to detection requirements in different scenes, and detection needing front-side direct view or detection needing observation from different angles can be realized through simple adjustment.

Description

Technical Field

[0001] The utility model belongs to the field of visual detection, and in particular relates to a CCD visual multi-position detection mechanism. Background Art

[0002] CCD (Charge-Coupled Device) inspection equipment is widely used in industrial automation, quality control, safety monitoring and other fields. This type of equipment uses CCD sensors to capture images and analyzes the images through advanced computer vision algorithms to identify defects, measure dimensions or other key features. For example, the "Guide Rail Lifting Module for CCD Inspection Equipment" with application number CN202420096245.8 is one of this type of equipment. The guide rail lifting module controls the linear operation of the lens and light source on the CCD inspection equipment through the rotational movement of the lead screw, so that the lens and light source can be precisely positioned and adjusted. The advantage of this is that the telecentric lens can obtain a clear image after a slight focal length adjustment. In addition, the lead screw adjustment method can significantly shorten the time spent by the operator on adjusting the position of the lens and light source, thereby improving the efficiency of CCD inspection.

[0003] However, despite the numerous advantages this design offers, it also presents some practical challenges. The main issue is that this type of CCD inspection equipment is typically equipped with only a single CCD camera and light source, meaning it can only provide images from a single perspective. If the target object has a complex structure or requires inspection from multiple angles, a single camera may not be able to capture all the necessary information, affecting the comprehensiveness and accuracy of the inspection.

[0004] To overcome this limitation, some manufacturers have begun adopting multi-camera systems. This approach uses multiple cameras installed at different locations to capture different sides of the target object, providing complete three-dimensional information. While this approach improves inspection comprehensiveness to a certain extent, it also introduces new challenges. When two or more cameras capture images simultaneously, there may be exposure issues that affect each other. This can lead to reduced image quality, which in turn affects the reliability and accuracy of inspection results. Utility Model Content

[0005] In view of this, the purpose of the present invention is to provide a CCD vision multi-position detection mechanism to solve the problems existing in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the technical solution of the present utility model is 1. A CCD visual multi-position detection mechanism, the detection mechanism includes a transmission device composed of a vertical transmission component and a horizontal transmission component and a first visual component and a second visual component arranged on the transmission device, the first visual component and the second visual component are both composed of a lens and a light source; the lens and the light source of the first visual component are vertically arranged on the moving end of the horizontal transmission component, the vertical transmission component has at least two independent moving parts, the two moving parts are sequentially connected to the horizontal transmission component and the second visual component, the lens and the light source of the second visual component are horizontally arranged on the moving part; when the light source of the first visual component and the light source of the second visual component are located on the same vertical line, the detection mechanism is coaxial detection; when the light source of the first visual component and the light source of the second visual component are not located on the same vertical line, the detection mechanism is misalignment detection; the position of the first visual component is controlled by the horizontal transmission component to realize the switching of the detection mechanism between coaxial detection and misalignment detection.

[0007] Preferably, the vertical transmission components are respectively a first vertical transmission component and a second vertical transmission component arranged in parallel, the lens of the second visual component is arranged on the moving part of the first vertical transmission component, and the light source of the second visual component is arranged on the moving part of the second vertical transmission component; when the horizontal transmission component moves the first visual component to the position of the first vertical transmission component, the detection mechanism is misalignment detection; when the horizontal transmission component moves the first visual component to the position of the second vertical transmission component, the detection mechanism is coaxial detection.

[0008] Preferably, the transverse transmission component includes a first transverse transmission component and a second transverse transmission component, the lens of the first visual component is arranged on the moving end of the first transverse transmission component, and the light source of the first visual component is arranged on the moving end of the second transverse transmission component; the first transverse transmission component and the second transverse transmission component are used to achieve the misalignment of the lens and the light source on the first visual component.

[0009] Furthermore, the movable parts on the vertical transmission part and connected to the horizontal transmission part are respectively a first movable part and a second movable part, the first horizontal transmission part is arranged on the first movable part, and the second horizontal transmission part is arranged on the second movable part; the positions of the first movable part and the second movable part are controlled by the vertical transmission part to realize the distance adjustment of the lens and the light source on the first visual component.

[0010] Furthermore, the moving parts on the vertical transmission component connected to the second visual component are respectively a third moving part and a fourth moving part, the third moving part is located on the first vertical transmission component, the fourth moving part is located on the second vertical transmission component, the lens of the second visual component is set on the third moving part, and the light source of the second visual component is set on the fourth moving part; the first vertical transmission component and the second vertical transmission component are used to achieve the misalignment of the lens and the light source on the second visual component.

[0011] Furthermore, the transverse transmission component also includes a third transverse transmission component, which is arranged on the third movable component, and the movable end of the third transverse transmission component is installed with the lens of the second visual component; the position of the lens on the second visual component is controlled by the third transverse transmission component to achieve the distance adjustment between the lens on the second visual component and the light source.

[0012] The technical effects of this utility model are mainly reflected in the following aspects:

[0013] The detection mechanism supports both coaxial detection mode and offset detection mode, enabling the detection system to adapt to detection needs in different scenarios. Whether it requires direct frontal inspection or inspection from different angles, it can be achieved through simple adjustments.

[0014] Misalignment detection adjusts the positions of the two cameras so that their light sources are not aligned vertically, thus avoiding image quality issues caused by light source interference when taking pictures simultaneously. This not only improves image clarity but also enhances the reliability of the test results. Misalignment detection allows image data to be acquired from multiple angles during a single inspection, reducing the number of repeated inspections and speeding up the overall inspection process. Furthermore, since interference between light sources is avoided, there is no need to repeatedly adjust the light source position to obtain the ideal image, further improving work efficiency.

[0015] By adjusting the distance between the lens and the light source, it can adapt to detection objects with different materials and surface properties (such as reflectivity, transparency, etc.), so that the detection system can remain efficient and accurate when facing a variety of materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 for Figure 1 Structural diagram of the middle transmission;

[0018] Figure 3 for Figure 2 Structural diagram of the vertical transmission components;

[0019] Figure 4 for Figure 2 Structural diagram of the middle transverse transmission component;

[0020] Figure 5 for Figure 1 A structural diagram of the first visual component and the second visual component;

[0021] In the figure: 1. transmission device, 11. vertical transmission component, 111. first vertical transmission component, 112. second vertical transmission component, 113. first moving member, 114. second moving member, 115. third moving member, 116. fourth moving member; 12. transverse transmission component, 121. first transverse transmission component, 122. second transverse transmission component, 123. third transverse transmission component; 21. first visual component, 22. second visual component, 23. lens, 24. light source. DETAILED DESCRIPTION

[0022] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings to make the technical solutions of the present invention easier to understand and grasp.

[0023] In this embodiment, it should be understood that the terms "middle", "upper", "lower", "top", "right", "left end", "above", "back", "middle", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, 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, and therefore should not be understood as a limitation on the present invention.

[0024] In addition, in this specific embodiment, if the connection or fixing method between components is not specifically described, the connection or fixing method can be through bolt fixing or pin fixing, or pin shaft connection, etc. commonly used in the prior art, and therefore, it is not described in detail in this embodiment.

[0025] Example

[0026] A CCD vision multi-position detection mechanism, see Figure 1 、 Figure 5The detection mechanism includes a transmission device 1 composed of a vertical transmission component 11 and a horizontal transmission component 12, and a first visual component 21 and a second visual component 22 arranged on the transmission device 1. The transmission device 1 can adopt a screw drive or a linear guide system to ensure that the lens 23 and the light source 24 can move smoothly and be accurately positioned; specifically, the vertical transmission component 11 can be a guide rail type lifting module of a CCD detection device mentioned in the background technology. The first visual component 21 and the second visual component 22 are both composed of a lens 23 and a light source 24; the lens 23 and the light source 24 of the first visual component 21 are vertically arranged on the moving end of the horizontal transmission component 12, and the vertical transmission component 11 has at least two independent moving parts, the two moving parts are connected to the horizontal transmission component 12 and the second visual component 22 in sequence, and the lens 23 and the light source 24 of the second visual component 22 are horizontally arranged on the moving parts; when the light source 24 of the first visual component 21 and the light source 24 of the second visual component 22 are located on the same vertical line, the detection mechanism is coaxial detection; when the light source 24 of the first visual component 21 and the light source 24 of the second visual component 22 are not located on the same vertical line, the detection mechanism is misalignment detection; the position of the first visual component 21 is controlled by the horizontal transmission component 12 to realize the switching of the detection mechanism between coaxial detection and misalignment detection.

[0027] See also Figure 2 、 Figure 3 The vertical transmission components 11 are respectively a first vertical transmission component 111 and a second vertical transmission component 112 arranged in parallel, the lens 23 of the second visual component 22 is arranged on the moving part of the first vertical transmission component 111, and the light source 24 of the second visual component 22 is arranged on the moving part of the second vertical transmission component 112; when the horizontal transmission component 12 moves the first visual component 21 to the position of the first vertical transmission component 111, the detection mechanism is misalignment detection; when the horizontal transmission component 12 moves the first visual component 21 to the position of the second vertical transmission component 112, the detection mechanism is coaxial detection.

[0028] Specifically, the horizontal transmission component 12 moves the first vision assembly 21 to different locations along the vertical transmission component 11 to switch detection modes. On-axis detection can meet the needs of coaxial detection of upper and lower vision, and is suitable for front-facing detection. Offset detection can meet the needs of detecting the misalignment of the upper and lower cameras, and is suitable for detection from different angles or sides. Furthermore, by adjusting the positions of the two cameras, offset detection can avoid the problem of exposure interference caused by simultaneous shooting with two cameras, thereby improving image quality.

[0029] Misalignment of lens 23 and light source 24:

[0030] See also Figure 4 The transverse transmission component 12 includes a first transverse transmission component 121 and a second transverse transmission component 122. The lens 23 of the first visual component 21 is arranged on the moving end of the first transverse transmission component 121, and the light source 24 of the first visual component 21 is arranged on the moving end of the second transverse transmission component 122; the first transverse transmission component 121 and the second transverse transmission component 122 are used to realize the misalignment of the lens 23 and the light source 24 on the first visual component 21.

[0031] See also Figure 3 The moving parts on the vertical transmission component 11 and connected to the second visual component 22 are respectively a third moving part 115 and a fourth moving part 116, the third moving part 115 is located on the first vertical transmission component 111, and the fourth moving part 116 is located on the second vertical transmission component 112, the lens 23 of the second visual component 22 is arranged on the third moving part 115, and the light source 24 of the second visual component 22 is arranged on the fourth moving part 116; the first vertical transmission component 111 and the second vertical transmission component 112 are used to realize the misalignment of the lens 23 and the light source 24 on the second visual component 22.

[0032] Specifically, by adjusting the position of the lens 23 and the light source 24, shadows or strong reflections caused by direct illumination can be reduced, which may interfere with the quality of the image. Reducing shadows and reflections can improve the clarity and contrast of the image, making subsequent feature recognition and defect detection more accurate. Misalignment adjustment can also help achieve a more uniform light distribution, avoiding certain areas from being too bright or too dark. Uniform lighting is the basis of high-quality images and helps improve the reliability and consistency of detection. Moreover, when two or more cameras are working simultaneously, misalignment adjustment can avoid mutual interference between the light sources 24, ensuring that the light received by each camera is not affected by other light sources 24. This can improve the working efficiency of the multi-camera system and reduce image quality problems caused by light interference. Furthermore, by flexibly adjusting the position of the lens 23 and the light source 24, the detection speed and efficiency can be improved, unnecessary repeated detection can be reduced, and production efficiency can be improved.

[0033] Distance adjustment between lens 23 and light source 24 (focus control):

[0034] See also Figure 3The movable parts on the vertical transmission component 11 and connected to the horizontal transmission component 12 are respectively the first movable part 113 and the second movable part 114, the first horizontal transmission component 121 is set on the first movable part 113, and the second horizontal transmission component 122 is set on the second movable part 114; the positions of the first movable part 113 and the second movable part 114 are controlled by the vertical transmission component 11 to realize the distance adjustment of the lens 23 and the light source 24 on the first visual component 21.

[0035] See also Figure 4 The transverse transmission component 12 also includes a third transverse transmission component 123, which is arranged on the third movable member 115, and the movable end of the third transverse transmission component 123 is installed with the lens 23 of the second visual component 22; the position of the lens 23 on the second visual component 22 is controlled by the third transverse transmission component 123 to adjust the distance between the lens 23 on the second visual component 22 and the light source 24.

[0036] Specifically, by adjusting the distance between the lens 23 and the object being inspected, the image can be ensured to be in the optimal focus position, thereby obtaining the clearest image. For the telecentric lens 23, fine-tuning the focal length can help obtain high-quality images while maintaining a large depth of field; clear images are crucial for subsequent image processing and feature recognition, and blurred images can lead to misjudgments or missed detections. At the same time, adjusting the distance between the light source 24 and the object can also optimize the uniformity of the lighting and avoid overexposure or underexposure. Moreover, correct spacing adjustment can reduce the number of unnecessary retakes, thereby increasing the speed of inspection; an efficient inspection process is crucial for large-scale production environments, which can save costs and improve productivity. Furthermore, by adjusting the distance between the lens 23 and the light source 24, the inspection requirements of different materials can be met, including materials with different thicknesses, hardnesses or surface properties.

[0037] In addition, as common knowledge in the industry, the first visual component 21 and the second visual component 22 mentioned above are common knowledge, so their principles and structures will not be described in detail.

[0038] Of course, the above are only typical examples of the present invention. In addition, the present invention can also have many other specific implementation methods. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A CCD visual multi-position detection mechanism, characterized by: The detection mechanism includes a transmission device consisting of a vertical transmission component and a horizontal transmission component, and a first visual component and a second visual component arranged on the transmission device, wherein the first visual component and the second visual component are both composed of a lens and a light source; the lens and the light source of the first visual component are vertically arranged on the movable end of the horizontal transmission component, the vertical transmission component has at least two independent moving parts, the two moving parts are sequentially connected to the horizontal transmission component and the second visual component, and the lens and the light source of the second visual component are horizontally arranged on the moving part; When the light source of the first visual component and the light source of the second visual component are located on the same vertical line, the detection mechanism is coaxial detection; when the light source of the first visual component and the light source of the second visual component are not located on the same vertical line, the detection mechanism is misaligned detection; the position of the first visual component is controlled by the transverse transmission component to realize the switching of the detection mechanism between coaxial detection and misaligned detection.

2. The CCD visual multi-position detection mechanism according to claim 1, wherein: The vertical transmission components are respectively a first vertical transmission component and a second vertical transmission component arranged in parallel, the lens of the second visual component is arranged on the moving component of the first vertical transmission component, and the light source of the second visual component is arranged on the moving component of the second vertical transmission component; When the transverse transmission component moves the first visual component to the position of the first vertical transmission component, the detection mechanism is a misalignment detection; when the transverse transmission component moves the first visual component to the position of the second vertical transmission component, the detection mechanism is a coaxial detection.

3. The CCD visual multi-position detection mechanism according to claim 1, wherein: The transverse transmission component includes a first transverse transmission component and a second transverse transmission component. The lens of the first visual component is arranged on the moving end of the first transverse transmission component, and the light source of the first visual component is arranged on the moving end of the second transverse transmission component.

4. The CCD visual multi-position detection mechanism according to claim 3, wherein: The moving parts on the vertical transmission part and connected to the transverse transmission part are respectively a first moving part and a second moving part. The first transverse transmission part is arranged on the first moving part, and the second transverse transmission part is arranged on the second moving part.

5. The CCD visual multi-position detection mechanism according to claim 2, wherein: The movable parts on the vertical transmission component and connected to the second visual component are respectively the third movable part and the fourth movable part, the third movable part is located on the first vertical transmission component, the fourth movable part is located on the second vertical transmission component, the lens of the second visual component is arranged on the third movable part, and the light source of the second visual component is arranged on the fourth movable part.

6. The CCD visual multi-position detection mechanism according to claim 5, characterized in that: The transverse transmission component further includes a third transverse transmission component, which is arranged on the third moving member. The moving end of the third transverse transmission component is installed with the lens of the second visual component.

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