An imaging device mounting assembly and defect detection apparatus

Abstract

This utility model discloses an imaging device mounting assembly and a defect detection device, belonging to the technical field of visual inspection equipment. The imaging device mounting assembly includes a first plate and at least one adjustable component. The adjustable component includes a second plate, a third plate, and a support plate. A first adjustment mechanism is provided between the second plate and the first plate, used to move the second plate relative to the first plate. A second adjustment mechanism is provided between the third plate and the second plate, used to move the third plate relative to the second plate. The support plate protrudes from the third plate and provides a mounting position for the imaging device. The first, second, and third plates are stacked, and one of the first and second guide structures is a horizontal guide structure, while the other is a vertical guide structure. This utility model achieves multi-directional position adjustment of the imaging device through a simpler structure, improving detection accuracy.

Description

Technical Field

[0001] This utility model relates to the field of visual inspection equipment technology, and in particular to an imaging device mounting assembly and a defect detection device. Background Technology

[0002] Visual inspection equipment is an automated inspection device based on machine vision technology. It acquires image information of the object being inspected through an optical imaging system and uses image processing algorithms to identify and judge features such as defects, dimensions, and locations. Visual inspection equipment is widely used in various fields. For example, in the PCB (printed circuit board) manufacturing industry, visual inspection equipment is used as a defect detection device. It can detect defects such as cold solder joints, broken circuits, and surface scratches on PCBs. High-precision defect detection is a key link in ensuring the reliability of PCB products.

[0003] In visual inspection equipment, the inspection imaging device needs to be mounted on a corresponding imaging device mounting assembly. However, due to factors such as parts processing errors and assembly errors, the spatial position of the inspection imaging device may not meet the requirements after installation. Consequently, when the inspection imaging device captures images of the product under inspection, it cannot obtain good imaging results, thus affecting the reliability of the inspection results. In related technologies, some imaging device mounting assemblies provide adjustment functions, but these still suffer from structural complexity. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide an imaging device mounting component and a defect detection device, which can adjust the lateral and vertical positions of the imaging device, has a simple structure, and improves detection accuracy and efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An imaging device mounting assembly includes a first plate and at least one adjustable component, the adjustable component comprising:

[0007] The second plate is slidably connected to the first plate via a first guide structure; a first adjustment mechanism is provided between the second plate and the first plate, and the first adjustment mechanism is used to move the second plate relative to the first plate.

[0008] The third plate is slidably connected to the second plate via a second guide structure; a second adjustment mechanism is provided between the third plate and the second plate, the second adjustment mechanism being used to move the third plate relative to the second plate.

[0009] A support plate portion protrudes from the third plate portion; the support plate portion is used to provide an installation position for the imaging device.

[0010] The first plate, the second plate, and the third plate are stacked together, and one of the first guide structure and the second guide structure is a horizontal guide structure and the other is a vertical guide structure.

[0011] Optionally, the first guide structure is a transverse guide structure, and the first adjustment mechanism is used to drive the second plate portion to move relative to the first plate portion along the y direction; the second guide structure is a vertical guide structure, and the second adjustment mechanism is used to drive the third plate portion to move relative to the second plate portion along the z direction; the first plate portion, the second plate portion, and the third plate portion are arranged along the x direction.

[0012] Optionally, the second plate portion is configured to rotate relative to the first plate portion about the x-direction.

[0013] Optionally, the first plate portion is provided with a first guide groove, and the first guide structure is slidably installed in the first guide groove;

[0014] A mounting shaft is provided on the side of the second plate portion close to the first plate portion, and a shaft hole is provided on the side of the first guide structure close to the second plate portion. The mounting shaft is inserted into the shaft hole and extends along the x-direction.

[0015] Optionally, the first adjustment mechanism includes a first protrusion, a second protrusion, and a first adjustment bolt; the first protrusion is disposed on the first plate portion, and the second protrusion is disposed on the second plate portion; the first adjustment bolt is disposed along the y-direction;

[0016] One of the first protrusion and the second protrusion is threadedly connected to the first adjusting bolt, and the other abuts against the end of the first adjusting bolt, so that when the first adjusting bolt rotates under the action of external force, it drives the second protrusion and the second plate to move in the y direction.

[0017] Optionally, at least two sets of the adjustable components are provided at intervals along the y-direction on the first plate portion;

[0018] The first plate portion is provided with a plurality of first fixing portions spaced apart along the y direction, so that the first protrusion of at least one of the adjustable components can be mounted on any of the first fixing portions.

[0019] Optionally, the support plate portion is provided with an assembly hole that extends vertically through the support plate portion and is used to install a detection imaging device.

[0020] Optionally, the adjustable component includes a rotation adjustment mechanism, which is mounted on the support plate portion. The rotation adjustment mechanism includes a pushing portion, which is used to drive the imaging device to rotate within the mounting hole when the imaging device passes through the mounting hole.

[0021] Optionally, the support plate portion is provided with one or more spaced-apart translation adjustment mechanisms;

[0022] Each of the aforementioned rotation adjustment mechanisms includes an adjustment seat connected to the support plate portion and a rotation adjustment bolt. At least a portion of the adjustment seat protrudes relative to the support plate portion, and the protruding portion is provided with a rotation adjustment screw hole. The rotation adjustment bolt passes through the rotation adjustment screw hole, and the end of the rotation adjustment bolt is used to drive rotation within the mounting hole when the imaging device passes through the mounting hole.

[0023] Optionally, the support plate portion has a tensioning notch on the side opposite to the third plate portion, and the tensioning notch communicates with the assembly hole; the support plate portion includes a first tensioning portion and a second tensioning portion located on both sides of the tensioning notch, and the first tensioning portion and the second tensioning portion are configured to move closer to each other under the action of the locking member to reduce the tensioning notch.

[0024] A defect detection device includes a detection platform, a detection imaging device, and an imaging device mounting assembly as described above, wherein the detection imaging device is mounted on the support plate portion.

[0025] The detection platform is used to support the circuit board to be inspected, and the lens of the detection imaging device is oriented towards the detection platform.

[0026] The beneficial effects of this utility model are as follows: The imaging device mounting assembly, through a stacked structure design of the first plate, the second plate, and the third plate, combined with a composite adjustment mechanism of a horizontal guide structure, a vertical guide structure, a first adjustment mechanism, and a second adjustment mechanism, achieves position calibration of the horizontal and vertical positions of the imaging device. Even with manufacturing and assembly errors, it can calibrate the positional relationship between the imaging device and the product to be inspected after installation, improving imaging quality and enhancing the inspection effect. The stacked layout of the first, second, and third plates helps to reduce the overall volume and improve compactness. Attached Figure Description

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0028] Figure 1 This is one of the structural schematic diagrams of the imaging device mounting assembly described in an embodiment of the present utility model;

[0029] Figure 2 for Figure 1 Enlarged view of part A in the image;

[0030] Figure 3 This is a second schematic diagram of the structure of the imaging device mounting assembly described in this embodiment of the present invention;

[0031] Figure 4 This is one of the internal structural diagrams of the imaging device mounting assembly described in this embodiment of the present invention;

[0032] Figure 5 for Figure 4 Enlarged view of part B in the image;

[0033] Figure 6 This is a second schematic diagram of the internal structure of the imaging device mounting assembly described in this embodiment of the present invention;

[0034] Figure 7 for Figure 6 Enlarged view of section C in the image;

[0035] Figure 8 This is a partial exploded view of the imaging device mounting assembly according to an embodiment of the present invention;

[0036] Figure 9 This is a schematic diagram of the structure of the second plate portion near the third plate portion and the third plate portion near the second plate portion in an embodiment of the present invention;

[0037] Figure 10 This is one of the schematic diagrams showing the detection imaging device installed in the imaging device mounting assembly according to an embodiment of the present utility model;

[0038] Figure 11 This is a second schematic diagram showing the detection imaging device installed in the imaging device mounting assembly according to an embodiment of the present invention;

[0039] Figure 12 for Figure 11 Enlarged view of part D in the image;

[0040] Figure 13 This is a schematic diagram illustrating the adjustment principle of the horizontal rotation adjustment mechanism of the present invention for the lens reference line of the detection imaging device.

[0041] In the figure: 100, Adjustable component; 200, Vertical drive device; 10, First plate; 11, First guide groove; 12, First fixing part; 20, Second plate; 21, Second guide groove; 30, Third plate; 40, Support plate; 41, Assembly hole; 42, Tensioning notch; 43, First tensioning part; 44, Second tensioning part; 51, First guide structure; 511, Guide base; 5111, Shaft hole; 512, Guide slider 52. Second guide structure; 53. Mounting shaft; 61. First adjustment mechanism; 611. First protrusion; 612. Second protrusion; 613. First adjusting bolt; 62. Second adjustment mechanism; 621. Third protrusion; 622. Second adjusting bolt; 63. Horizontal adjustment mechanism; 631. Adjusting seat; 632. Horizontal adjustment bolt; 71. First locking element; 72. Second locking element; 90. Detection imaging device; 91. Mounting plate. Detailed Implementation

[0042] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0043] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected" and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between 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.

[0044] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0045] Visual inspection equipment is widely used in industrial manufacturing. For example, defect inspection equipment refers to visual inspection equipment used to detect product defects. In the electronics manufacturing industry, defect inspection equipment is used to inspect circuit boards for defects in order to identify defective products in a timely manner. Circuit boards can refer to PCBs (Printed Circuit Boards), PCBAs (Printed Circuit Board Assemblies), etc.

[0046] In related technologies, in inspection equipment, the inspection imaging device is mounted on an imaging device mounting assembly. However, due to machining errors in parts, installation errors in the imaging device, or different inspection requirements for different products, the spatial position and orientation of the currently installed inspection imaging device may not meet the requirements. In this case, the position of the inspection imaging device needs to be adjusted and calibrated to achieve a good imaging effect and accurately detect the type of defect based on the image, avoiding missed or false detections. Although some imaging device mounting assemblies provide adjustment functions, they still have problems such as complex structure, large size, or cumbersome adjustment operation. For example, some imaging device mounting assemblies require the cooperation of a large number of bases or plates to meet the adjustment requirements, which leads to a complex overall structure; or they only have a single adjustment function, resulting in poor applicability, etc.

[0047] Based on this, this application provides an imaging device mounting assembly that is applied in a defect detection device. For example, the imaging device mounting assembly is applied to the defect detection of a circuit board. The vertical direction of the imaging device mounting assembly refers to the z-axis direction. During detection, the circuit board to be detected is located on one side of the imaging device mounting assembly in the z-axis direction, so that the lens of the detection imaging device faces the circuit board to be detected.

[0048] The imaging device mounting assembly in this application can at least achieve adjustment of the horizontal and vertical positions of the imaging device. The stacked arrangement of the first plate, the second plate, and the third plate makes the overall structure of the mounting assembly simpler and more compact.

[0049] Furthermore, the support plate protrudes beyond the third plate, creating a space between the support plate and the third plate to accommodate the detection imaging device. This allows the detection imaging device to be mounted on the support plate in a manner approximately perpendicular to it. Additionally, the support plate protruding from the third plate forms a cantilever support structure, providing a positioning reference surface for the installation of the detection imaging device, simplifying installation and calibration operations.

[0050] The defect detection equipment of this application can perform defect detection on circuit boards. Before detection, the horizontal and vertical positions of the detection imaging device can be calibrated to ensure that the relative position between the detection imaging device and the object to be detected meets the requirements, so that the target area on the surface of the object to be detected can be captured by the detection imaging device, and the captured image is clear, thereby achieving a good imaging effect and ensuring the detection effect.

[0051] Please refer to the following. Figures 1 to 13 This application describes the imaging device mounting components and defect detection equipment.

[0052] It should be noted that the horizontal and vertical directions of the imaging device mounting assembly in this application are mutually perpendicular. In the accompanying drawings, the y-axis indicates the horizontal direction, the z-axis indicates the vertical direction, and the x-axis indicates the front-back direction; that is, the y, x, and z directions are mutually perpendicular. It should also be noted that the y, x, and z directions are only used to illustrate the relative positions of the components within the imaging device mounting assembly. In actual testing scenarios, the angle and state of the entire imaging device mounting assembly should be adjusted according to specific requirements.

[0053] Reference Figure 1 , Figure 3 The imaging device mounting assembly includes a first plate portion 10 and an adjustable component 100. The first plate portion 10, also referred to as a base plate or substrate, is used to connect with other devices in the inspection equipment when the imaging device mounting assembly is applied to a defect inspection device, for assembling the imaging device mounting assembly into the inspection equipment. The adjustable component 100, mounted on the first plate portion 10, is used to adjust at least the lateral and vertical positions of the inspection imaging device 90.

[0054] The adjustable component 100 provided on the first plate 10 can be one, two, or more than two. Figure 1 , Figure 3 As illustrated, the first plate 10 is equipped with two adjustable components 100. For example... Figure 10 , Figure 11 As illustrated, each adjustable component 100 can be equipped with a detection imaging device 90, and the position of the detection imaging device 90 can be adjusted. For example, in the field of circuit board defect detection, two detection imaging devices 90 are arranged along the y-direction in the imaging device mounting assembly, with both devices 90 located on one side of the circuit board in the z-direction. Thus, during inspection, using two detection imaging devices 90 allows for the acquisition of circuit board images over a larger area, resulting in higher inspection efficiency; alternatively, during inspection, using two detection imaging devices 90 to acquire images of the same area from two different perspectives allows for the acquisition of three-dimensional information of the circuit board, enabling more accurate defect detection based on binocular inspection. Of course, during inspection, images can also be acquired using only one detection imaging device 90.

[0055] The adjustable component 100 includes a second plate portion 20, a third plate portion 30, a support plate portion 40, a first guide structure 51, a second guide structure 52, a first adjustment mechanism 61, and a second adjustment mechanism 62. In the defect detection equipment, the imaging device is mounted on the support plate portion 40. (Refer to...) Figure 4 , Figure 8 The second plate portion 20 is slidably connected to the first plate portion 10 via a first guide structure 51. A first adjustment mechanism 61 is also provided between the second plate portion 20 and the first plate portion 10. The first adjustment mechanism 61 is used to apply an adjustment force to the second plate portion 20 to drive the second plate portion 20 to move relative to the first plate portion 10 along the first guide structure 51, thereby adjusting the position of the detection imaging device 90. The third plate portion 30 is slidably connected to the second plate portion 20 via a second guide structure 52. A second adjustment mechanism 62 is also provided between the third plate portion 30 and the second plate portion 20. The second adjustment mechanism 62 is used to apply an adjustment force to the third plate portion 30 to drive the third plate portion 30 to move relative to the second plate portion 20 along the second guide structure 52, thereby adjusting the position of the detection imaging device 90. It can be understood that when the second plate portion 20 moves relative to the first plate portion 10, it simultaneously drives the third plate portion 30, the support plate portion 40, and the detection imaging device 90 to move relative to the first plate portion 10. Similarly, when the third plate 30 moves relative to the second plate 20, it simultaneously drives the support plate 40 and the detection imaging device 90 to move relative to the second plate 20. The first guide structure 51 is a horizontal guide structure, and the second guide structure 52 is a vertical guide structure; or, the first guide structure 51 is a vertical guide structure, and the second guide structure 52 is a horizontal guide structure.

[0056] It should be noted that, referring to the accompanying drawings of this embodiment, a sliding connection between two plates via a lateral guide structure means that one of the two plates can slide relative to the other plate in the y-direction under the guidance of the lateral guide structure. A sliding connection between two plates via a vertical guide structure means that one of the two plates can slide relative to the other plate in the z-direction under the guidance of the lateral guide structure. Taking the first guide structure 51 as a lateral guide structure as an example, the second plate 20 can slide relative to the first plate 10 in the y-direction; taking the second guide structure 52 as a vertical guide structure as an example, the third plate 30 can slide relative to the second plate 20 in the z-direction.

[0057] The support plate portion 40 is connected to the third plate portion 30, and the support plate portion 40 protrudes relative to the third plate portion 30. The support plate portion 40 is used to provide a mounting position for the imaging device. (Refer to...) Figure 1 After the support plate portion 40 protrudes, the space between the support plate portion 40 and the third plate portion 30 serves as a receiving space for accommodating the detection imaging device 90. For example, as... Figure 10 , Figure 11 As illustrated, after the detection imaging device 90 is mounted on the support plate 40, the optical axis of the lens of the detection imaging device 90 extends approximately in the vertical direction (z-axis direction). Figure 10 For example, the imaging device 90 includes a camera and a lens. In the x-axis direction, the upper part of the support plate 40 is the imaging component and component mounting base of the imaging device 90, and the lower part of the support plate 40 is the lens and lens mounting base of the imaging device 90.

[0058] In other embodiments, after the detection imaging device 90 is mounted to the support plate portion 40, the optical axis of the lens of the detection imaging device 90 extends approximately in the front-back direction (x-axis direction).

[0059] The first plate portion 10, the second plate portion 20, and the third plate portion 30 are stacked. For example, the second plate portion 20 is provided on the front side of the first plate portion 10, the third plate portion 30 is provided on the front side of the second plate portion 20, and the support plate portion 40 protrudes from the third plate portion 30 in a direction away from the second plate portion 20 to form a mounting platform for easy installation of the detection imaging device 90.

[0060] Taking the first guide structure 51 as a horizontal guide structure, the second guide structure 52 as a vertical guide structure, and the detection imaging device 90 configured such that the lens optical axis is approximately vertical after installation on the support plate 40, an example of adjusting and calibrating the detection imaging device 90 is provided: In a defect detection device, after the detection imaging device 90 is installed on the support plate 40, the lens of the detection imaging device 90 is directed towards the front or back of the circuit board. Ideally, the lens of the detection imaging device 90 should capture an image of the entire area or a designated area on the surface of the circuit board. For ease of understanding, area A is used as an example below. During debugging, if it is found that the position of the detection imaging device 90 in the y-direction is slightly off, for example, if the left side of area A on the circuit board surface is not captured by taking a test image, the first adjustment mechanism 61 is operated to adjust the position of the second plate 20 in the y-direction, thereby moving the detection imaging device 90 slightly to the left to ensure that area A is fully captured. If it is found that the position of the detection imaging device 90 in the z-direction is unsuitable, for example, if it is found through taking test images that the edge area around region A on the circuit board surface is not captured, then the second adjustment mechanism 62 is operated to adjust the position of the third plate part 30 in the z-direction, so that the lens of the detection imaging device 90 is slightly moved away from the circuit board, allowing the detection imaging device 90 to capture an image of the entire region A on the circuit board surface. This adjustment operation is only used as one example and is not intended to be the only limitation of this application.

[0061] The imaging device mounting assembly of this application, when applied in defect detection equipment, not only provides the function of mounting the detection imaging device 90, but also calibrates the lateral and vertical positions of the detection imaging device 90, thereby calibrating the area of ​​the image captured by the detection imaging device 90 and ensuring the detection effect. Furthermore, the structure of the imaging device mounting assembly is not complicated; it is simple and compact, easy to assemble, and easy to adjust.

[0062] Furthermore, the imaging device mounting assembly, with the first plate 10, the second plate 20, and the third plate 30 stacked together, not only makes the structure between the three plates more compact, but also allows the first plate 10 to be mounted on the vertical drive device 200 on the side opposite to the second plate 20 in the defect detection equipment. This enables the vertical drive device 200 to drive the entire mounting assembly to move vertically, thereby quickly controlling the detection imaging device 90 to move closer to or further away from the object to be detected.

[0063] In one embodiment, the defect detection equipment includes a detection platform, a detection imaging device 90, and an imaging device mounting assembly as described in this application. The detection imaging device 90 is mounted on a support plate 40. The detection platform supports the circuit board to be inspected, and the vertical direction (i.e., the z-axis direction) of the imaging device mounting assembly is aligned with the vertical direction of the defect detection equipment. The imaging device mounting assembly is located on the upper side, lower side, or both sides of the detection platform. The lens of the detection imaging device 90 faces the detection platform so that it can capture images of the circuit board on the platform.

[0064] The defect detection equipment includes two imaging device mounting assemblies. One assembly is located on the upper side of the inspection platform, and the other on the lower side. The lens of the detection imaging device 90 on the upper assembly faces downwards, while the lens of the detection imaging device 90 on the lower assembly faces upwards. This allows for simultaneous image capture of the upper and lower surfaces of the circuit board from the same location using the upper and lower imaging devices 90. For example, the inspection platform includes multiple conveyor belts with a gap between the first and second conveyor belts. Two detection imaging devices 90 are located on the upper and lower sides of this gap, facing each other. The circuit board is smoothly conveyed forward along the x-direction by the first conveyor belt. When the circuit board reaches the gap between the first and second conveyor belts, the upper and lower imaging devices 90 simultaneously acquire images, providing synchronized image acquisition of the upper and lower surfaces of the circuit board. Since the horizontal (y-direction) and vertical (z-direction) positions of the upper and lower detection imaging devices 90 can be calibrated by the first adjustment mechanism 61 and the second adjustment mechanism 62, it can ensure that the imaging devices are accurately aligned with the areas to be detected on the upper and lower surfaces of the circuit board, obtain clear and complete images, improve the precision and accuracy of defect detection, and effectively avoid missed or false detections caused by positional deviations of the imaging devices.

[0065] In other embodiments, the imaging device mounting component may be provided only on the upper or lower side of the detection platform in the defect detection equipment.

[0066] Of course, in other detection scenarios, the z-axis direction of the defect detection equipment can also be configured to be roughly parallel to the ground, and the optical axis of the lens of the detection imaging device 90 can be roughly parallel to the ground, as long as the detection imaging device 90 can be aligned with the object to be detected.

[0067] The imaging device mounting components of this application will be further described below.

[0068] In one embodiment, the first plate portion 10 is a substrate for mounting components, the second plate portion 20 is a lateral adjustment plate, and the third plate portion 30 is a vertical adjustment plate. Correspondingly, the first guide structure 51 is a lateral guide structure, and the first adjustment mechanism 61 is used to drive the second plate portion 20 to move relative to the first plate portion 10 along the y-direction, so as to adjust the lateral position of the detection imaging device 90. The second guide structure 52 is a vertical guide structure, and the second adjustment mechanism 62 is used to drive the third plate portion 30 to move relative to the second plate portion 20 along the z-direction, so as to adjust the vertical position of the detection imaging device 90. The first plate portion 10, the second plate portion 20, and the third plate portion 30 are arranged along the x-direction. In this embodiment, the specific layout of the imaging device mounting components takes into account both the lateral and vertical position adjustments after the imaging device 90 is installed. Furthermore, the three plates are arranged along the x-direction. Without affecting the lateral and vertical position adjustments, the stacked arrangement of the three plates makes the overall structure more compact, clear, and simple. This facilitates operators' understanding of the installation positions and sequences of each component, reducing the difficulty of calibration operations or assembly. Additionally, the stacked arrangement of the three plates allows them to support each other, improving the overall structural stability.

[0069] In one embodiment, reference is made to Figure 4 , Figure 5 The second plate portion 20 is configured to rotate relative to the first plate portion 10 about an axis extending in the x-direction.

[0070] Optionally, the second plate portion 20 is rotatably connected to the first guide structure 51 via a mounting shaft 53 extending in the x-direction, allowing the second plate portion 20 to swing relative to the first plate portion 10 about the mounting shaft 53. Thus, whether the second plate portion 20 is moved relative to the first plate portion 10, or rotated or swung relative to the first plate portion 10, the optical axis position and imaging area of ​​the detection imaging device 90 in the y-direction can be adjusted.

[0071] A process for adjusting the position of the imaging device 90 in an imaging device mounting assembly is as follows: If the position of the imaging device 90 in the y-direction is unsuitable, the second plate 20 is operated to move it a small distance along the y-direction relative to the first plate 10. If, at this point, the position of the imaging device 90 in the y-direction still has a slight deviation, the second plate 20 is operated to rotate it relative to the first plate 10 around the mounting axis 53 by a certain angle. This allows for fine-tuning of the lateral position of the optical axis of the imaging device 90 in the y-direction (from state b to state c in the figure), ensuring that the position of the imaging device 90 meets the requirements. Alternatively, the second plate 20 can be rotated directly without moving it during adjustment.

[0072] In this embodiment, the position of the detection imaging device 90 in the y-direction can be adjusted by moving the second plate 20. Furthermore, by means of the rotatable engagement between the second plate 20 and the first plate 10 via the mounting shaft 53 and the first guide structure 51, a slight left-right oscillation of the second plate 20 will cause the detection imaging device 90 to oscillate slightly as well, thereby fine-tuning the lens field of view and the position of the lens optical axis in the y-direction. Compared to solutions that only allow adjustment of the lateral position of the detection imaging device 90 through translation, this embodiment not only offers a wider range of adjustment methods but also significantly improves the flexibility of adjusting the lateral imaging area of ​​the detection imaging device 90, further enhancing the adjustment accuracy.

[0073] A mounting shaft 53 is provided between the second plate 20 and the first guide structure 51. When the second plate 20 translates along the y direction, it relies on the first guide structure 51. When the second plate 20 rotates around the axis extending in the x direction, it relies on the mounting shaft 53. The two adjustment needs do not interfere with each other.

[0074] Optionally, such as Figure 5 , Figure 8 As shown, the mounting shaft 53 is located on the side of the second plate 20 near the first plate 10. The mounting shaft 53 is integrally formed with the second plate 20 or connected by any method such as welding or screw tightening. A first guide groove 11 is provided on the side of the first plate 10 near the second plate 20. The first guide groove 11 can be a through groove as shown in the figure, or a recessed groove not shown in the figure. The first guide structure 51 is slidably mounted in the first guide groove 11 as a slider. The first guide groove 11 extends a certain distance along the y-axis to provide a certain sliding stroke. A shaft hole 5111 is provided on the side of the first guide structure 51 near the second plate 20, and the mounting shaft 53 is inserted into the interior of the first guide structure 51.

[0075] Thus, when the second plate portion 20 moves laterally, under the guidance of the first guide groove 11 and the first guide structure 51, the entire assembly consisting of the second plate portion 20, the mounting shaft 53, and the first guide structure 51 moves relative to the first plate portion 10 in the y-direction. When the second plate portion 20 rotates, the second plate portion 20 and the mounting shaft 53 rotate relative to the first guide structure 51, thereby rotating relative to the first plate portion 10. During this process, the groove wall of the first guide groove 11 restricts the rotation of the first guide structure 51.

[0076] This design, through a clever structural combination, achieves stable lateral movement and rotational adjustment of the second plate 20, ensuring adjustment accuracy while preventing abnormal rotation between components. The first guide structure 51 moves only when the second plate 20 is moved laterally, and the mounting shaft 53 moves only when the second plate 20 is rotated, resulting in higher reliability and stability. When the second plate 20 is rotated, the first guide structure 51 does not need to rotate accordingly, thus increasing the contact area between the outer surface of the first guide structure 51 and the wall of the first guide groove 11, thereby improving the stability of the second plate 20 mounted on the first plate 10. The first guide structure 51 can be configured as a round shaft, or as a rectangular block, square block, or other shapes.

[0077] Alternatively, please refer to Figure 5 , Figure 8 The first guide structure 51 includes a guide base 511 and a guide slider 512 protruding from the guide base 511 towards the side near the first plate portion 10. The guide slider 512 is slidably mounted in the first guide groove 11. The guide base 511 has a shaft hole 5111 on the side near the second plate portion 20, and a mounting shaft 53 is inserted into the guide base 511. After assembly, the side of the guide base 511 facing away from the second plate portion 20 can abut against the first plate portion 10, providing assembly positioning and assembly stability.

[0078] In other embodiments, to enable the second plate portion 20 to move along the y-direction and rotate about a rotation axis extending around the x-axis, a first guide groove 11 is provided on the side of the first plate portion 10 near the second plate portion 20. The first guide structure 51 is a circular protrusion, which serves as both a slider and a pivot. The first guide structure 51 is slidably mounted within the first guide groove 11. Alternatively, the first guide groove 11 can also be provided in the second plate portion 20, and the circular protrusion of the first guide structure 51 can also be provided in the first plate portion 10.

[0079] In one embodiment, the position of the second plate portion 20 on the first plate portion 10 is adjusted by adjusting bolts. For example... Figure 1 , Figure 2As shown, the first adjustment mechanism 61 includes a first protrusion 611, a second protrusion 612, and a first adjustment bolt 613. The first protrusion 611 is disposed on the first plate portion 10, the second protrusion 612 is disposed on the second plate portion 20, and the first adjustment bolt 613 is disposed along the y direction.

[0080] Of the first protrusion 611 and the second protrusion 612, one is threadedly connected to the first adjusting bolt 613, and the other abuts against the end of the first adjusting bolt 613. In this way, the user can rotate the first adjusting bolt 613 by manual rotation or mechanical control, thereby using the reaction force to push the second protrusion 612 and the second plate portion 20 to move along the y-direction.

[0081] like Figure 1 , Figure 2 As shown, in the y-direction, the second protrusion 612 is located beside the first protrusion 611. The second protrusion 612 has a threaded hole extending in the y-direction, through which the screw of the first adjusting bolt 613 passes and is threadedly connected, with its end abutting against the first protrusion 611. When the first adjusting bolt 613 is rotated, since the first protrusion 611 is fixed in position on the first plate 10, the second protrusion 612 will move along the screw, causing the second plate 20 to move relative to the first plate 10 in the y-direction.

[0082] like Figure 3 In some embodiments, at least one first adjustment mechanism 61 is provided on each of the upper and lower sides of the second plate portion 20. By using the paired first adjustment mechanisms 61, the force on the second plate portion 20 can be more evenly distributed when adjusting its y-axis position, resulting in more precise and stable translational adjustment of the second plate portion 20 along the y-direction. The first adjustment bolts 613 in the first adjustment mechanisms 61 on both the upper and lower sides can be located either on the left or right side of the second protrusion 612. In other embodiments, only one first adjustment mechanism 61 may be provided between the second plate portion 20 and the first plate portion 10.

[0083] This first adjustment mechanism 61, through its simple structure, enables precise movement of the second plate 20, offering convenient operation and high stability, thus providing a reliable guarantee for adjusting the position of the imaging device 90. Utilizing a threaded connection and end abutment, rotational motion is converted into linear motion. Furthermore, each rotation of the first adjusting bolt 613 corresponds to a fixed distance movement of the second plate 20 along the y-direction. This simple mechanical structure allows for more precise control of the y-direction movement of the second plate 20, thereby improving the convenience and accuracy of adjusting the position of the imaging device 90 in the y-direction. Moreover, both manual and mechanical control of rotating the first adjusting bolt 613 are convenient, meeting diverse needs.

[0084] Optionally, locking holes are provided on the second plate portion 20 and the first plate portion 10 respectively. The locking holes on the second plate portion 20 are racetrack-shaped holes extending laterally, and the locking holes on the first plate portion 10 are round holes. After the position adjustment of the second plate portion 20 is completed, as... Figures 1 to 3 The first locking member 71 (e.g., a transverse locking bolt) is inserted into the racetrack-shaped hole and the round hole. The pressing part of the first locking member 71 (e.g., the screw head of the locking bolt) presses the second plate portion 20 against the first plate portion 10. Thus, after the second plate portion 20 moves into position relative to the first plate portion 10 along the y-direction or rotates to its correct position around the x-direction, the first locking member 71 can be used to hold the second plate portion 20 in its current position and angle. Optionally, for the imaging device mounting assembly, to meet different detection requirements, at least two sets of adjustable components 100 are spaced apart along the y-direction on the first plate portion 10, and each adjustable component 100's support plate portion 40 is equipped with a detection imaging device. For example, for some circuit boards, it is desirable to simultaneously capture images of the upper surface of the circuit board using two detection imaging devices 90. In this case, two adjustable components 100 can be provided on the imaging device mounting assembly of the circuit board, and a detection imaging device 90 can be installed corresponding to each adjustable component 100.

[0085] In different detection scenarios, the required spacing between the lens optical axes of adjacent detection imaging devices 90 varies, that is, the required spacing between adjacent detection imaging devices 90 in the y-direction differs. Although the position of the detection imaging device 90 in the y-direction can be adjusted by the first adjustment mechanism 61, thereby adjusting the spacing between adjacent detection imaging devices 90, this adjustment method is slow and has a small adjustable range.

[0086] Optionally, in order to better adapt to the detection needs of different scenarios and to take into account the convenience of adjusting the position of the first adjusting bolt 613 on the second plate 20 and the detection imaging device 90 in the y direction, the installation position of the first protrusion 611 connected to the first plate 10 is configured to be adjustable.

[0087] Reference Figure 2 The first plate portion 10 is provided with a plurality of first fixing portions 12 spaced apart along the y-direction at positions corresponding to at least one adjustable component 100, so that the first protrusion 611 in at least one adjustable component 100 can be mounted on any of the first fixing portions 12 (e.g., Figure 7 , Figure 8 ).For example Figure 3 The adjustable component 100 on the right side has a first protrusion 611 which is a protrusion. The first plate 10 has a plurality of first fixing parts 12 along the y direction. The first fixing part 12 is a first fixing hole. The first protrusion 611 is installed on any first fixing part 12 using screws or other fasteners.

[0088] In a dual-imaging device inspection scenario, the distance between the lens optical axes of the two inspection imaging devices 90 may vary depending on the circuit board or inspection requirements. In this case, by mounting the first protrusion 611 onto different first fixing parts 12 of the first plate portion 10, the reference position of the first protrusion 611 can be adjusted, thereby adjusting the reference position of the inspection imaging device 90 in the y-direction to meet the requirements of different lens optical axis distances. Subsequent calibration of the y-axis position of each inspection imaging device 90 can be performed using the first inspection bolt for fine-tuning.

[0089] In one embodiment, reference is made to Figure 9 The second guide structure 52 is a guide protrusion provided on the side of the third plate 30 near the second plate 20. A second guide groove 21 is provided on the side of the second plate 20 near the third plate 30. The third plate 30 can be slidably installed in the second guide groove 21 along the vertical direction through the second guide block, so that the third plate 30 can move vertically relative to the second plate 20 in a stable manner to perform fine adjustment of the vertical position of the detection imaging device 90.

[0090] Optionally, when the detection imaging device 90 is vertically mounted on the support plate 40, in order to accommodate the vertical position adjustment of the third plate 30 while ensuring stable support of the detection imaging device 90, locking holes are provided on the third plate 30 and the second plate 20 respectively. The locking holes on the third plate 30 are racetrack-shaped holes extending vertically, and the locking holes on the second plate 20 are round holes. After the vertical position adjustment of the third plate 30 is completed, as... Figure 1 , Figure 3 The second locking member 72 (e.g., a vertical locking bolt) is inserted into the racetrack-shaped hole and the round hole to hold the third plate 30 in the current position.

[0091] In one embodiment, reference is made to Figure 9 , Figure 2 The second adjustment mechanism 62 includes a third protrusion 621, which protrudes from the second plate 20 on the side near the third plate 30 and is located on the side of the third plate 30 in the z-direction. The second adjustment mechanism 62 also includes a second adjustment bolt 622, which passes through the third protrusion 621 and is threadedly connected to it. The end of the second adjustment bolt 622 abuts against the third plate 30. When the user rotates the second adjustment bolt 622, the third plate 30 on the second plate 20 can be pushed upward or downward in the z-direction, making adjustment convenient.

[0092] Optionally, at least two second adjustment mechanisms 62 are provided between the second plate portion 20 and the third plate portion 30, and the two second adjustment mechanisms 62 are located on the upper and lower sides of the third plate portion 30 in the z-axis direction. Figures 1 to 3As shown, a second adjusting bolt 622 of a second adjusting mechanism 62 is located on the upper side of the third plate portion 30, and the lower end of the second adjusting bolt 622 abuts against the upper end of the third plate portion 30 (e.g., Figure 2 (Illustrative image); The second adjusting bolt 622 of the other second adjusting mechanism 62 is located on the lower side of the third plate portion 30, with the upper end of the second adjusting bolt 622 abutting against the lower end of the third plate portion 30. This not only allows for upward and downward translational adjustment of the third plate portion 30 relative to the second plate portion 20, but also enables accurate and stable translational adjustment of the third plate portion 30 along the z-direction by supporting the third plate portion 30 via the lower second adjusting bolt 622. Of course, in other embodiments, the second adjusting mechanism 62 may only be provided on the lower side of the third plate portion 30.

[0093] In one embodiment, reference is made to Figure 1 , Figure 4 The support plate portion 40 is provided with an assembly hole 41, which extends vertically through the support plate portion 40, i.e., through the support plate portion 40 along the z-axis. The assembly hole 41 is used to insert the detection imaging device 90. One side of the support plate portion 40 is a support surface, which is adjacent to the third plate portion 30 and is used to support the detection imaging device 90. On the circuit board inspection production line, the operator can directly insert the cylindrical detection imaging device 90 into the assembly hole 41. The outer ring of the lens of the detection imaging device 90 has a protruding mounting plate 91, which is hung on the support plate portion 40, realizing the rapid installation of the detection imaging device 90. The assembly hole 41 of the support plate portion 40 has a radial limiting effect on the lens of the detection imaging device 90, which helps to improve the positional stability of the detection imaging device 90 and improve the detection accuracy.

[0094] In other embodiments, if the support plate portion 40 is not provided with mounting holes 41, the bottom of the detection imaging device 90 is locked to the support plate portion 40 by means of screws or the like.

[0095] In one embodiment, reference is made to Figure 1 , Figure 8 , Figure 11 , Figure 12The support plate 40 is provided with an assembly hole 41. The adjustable component 100 includes a horizontal rotation adjustment mechanism 63, which is mounted on the support plate 40. The horizontal rotation adjustment mechanism 63 includes a pushing part, which is used to drive the imaging device to rotate within the assembly hole 41 when the imaging device passes through the assembly hole 41. In industrial inspection scenarios, a circuit board is placed on the upper side of an inspection platform (such as a conveyor belt or a fixed inspection table) to await inspection. The lens of the inspection imaging device 90 faces the object to be inspected on the inspection platform, and the optical axis of the lens of the inspection imaging device 90 is perpendicular to the surface of the inspection platform. When the object to be inspected is a circuit board, and the inspection imaging device 90 is a line scan imaging device, the lens of the inspection imaging device 90 has a corresponding line scan reference line. According to the image acquisition requirements, the line scan reference line needs to be aligned and parallel to the front edge of the circuit board to avoid problems such as missed detection. Figure 13 In the diagram, L1 indicates the line scan reference line of the lens of the detection imaging device 90, and L2 indicates the front edge of the circuit board on the detection platform. At this time, L1 and L2 are not parallel and the included angle is greater than the threshold. At this time, it is necessary to push the detection imaging device 90 from one side through the rotation adjustment mechanism 63 so that the detection imaging device 90 rotates within the mounting hole 41, thereby realizing the angle adjustment of the line scan reference line L1 of the detection imaging device 90.

[0096] Compared to disassembling and reinstalling the detection imaging device 90 to adjust the angle of the line scan baseline, this embodiment provides convenience and controllability for the rotation adjustment of the detection imaging device 90 by using a horizontal adjustment mechanism 63 that cooperates with the mounting hole 41 of the support. Compared to directly rotating the detection imaging device 90 by hand, using a horizontal adjustment mechanism 63 to rotate the detection imaging device 90 makes the rotation angle of the detection imaging device 90 easier to quantify, more controllable, and more accurate.

[0097] Optionally, refer to Figure 3 The support plate portion 40 is provided with one or more spaced-apart horizontal adjustment mechanisms 63. Each horizontal adjustment mechanism 63 includes an adjustment seat 631 connected to the support plate portion 40 and a horizontal adjustment bolt 632. At least a portion of the adjustment seat 631 protrudes relative to the support surface, and the protruding portion is provided with a horizontal adjustment screw hole. The horizontal adjustment bolt 632 passes through the horizontal adjustment screw hole, and the end of the horizontal adjustment bolt 632 is used to drive rotation within the mounting hole 41 when the imaging device passes through the mounting hole 41. Each turn of the horizontal adjustment bolt 632 by the operator produces a fixed angular fine adjustment, which is more controllable in precision compared to manual adjustment. Furthermore, by providing multiple horizontal adjustment mechanisms 63, for example... Figure 3 As illustrated, a horizontal adjustment mechanism 63 is eccentrically set on each side of the detection imaging device 90. The detection imaging device 90 can be pushed to rotate clockwise or counterclockwise from different directions, thereby meeting different adjustment needs, making it more flexible and efficient.

[0098] In one embodiment, reference is made to Figure 1 To ensure greater stability of the imaging device 90 after installation, a tensioning notch 42 is provided on the side of the support plate 40 opposite to the third plate 30. The tensioning notch 42 communicates with the mounting hole 41. The support plate 40 includes a first tensioning part 43 and a second tensioning part 44 located on both sides of the tensioning notch 42. The first tensioning part 43 and the second tensioning part 44 are configured to move closer together under the action of the locking member to reduce the tensioning notch 42, thereby reducing the mounting hole 41 and clamping the imaging device 90. When the operator inserts the imaging device 90 into the mounting hole 41, tightening the locking bolt causes the first tensioning part 43 and the second tensioning part 44 to move in opposite directions, generating a radial clamping force on the imaging device 90. This balances the ease of installation and stability of the imaging device 90, improving detection accuracy.

[0099] The imaging device mounting assembly of this application is mainly used in visual inspection equipment, enabling the imaging device to be precisely adjusted in two directions to adapt to different inspection needs. The assembly mainly includes a first plate 10, a second plate 20, and a third plate 30, which are arranged in layers. The first plate 10 serves as a substrate, providing a basic mounting position. The second plate 20 acts as a horizontal sliding plate, which, under the action of a first guide structure 51, can move left and right relative to the substrate in the Y direction via a mounting shaft 53. The third plate 30 acts as a vertical sliding plate, which, under the action of a second guide structure 52, can move up and down relative to the horizontal sliding plate in the Z direction via a second adjustment mechanism. A support plate 40 is disposed on the third plate 30 to fix the imaging device, meeting its adjustment requirements for different heights and horizontal directions. Furthermore, the imaging device mounting assembly is also equipped with a horizontal adjustment mechanism 63, allowing the imaging device to be angled within the mounting hole 41, ensuring that the angle of the line scan reference line of the inspection imaging device 90 meets the requirements and avoiding missed inspections. The support plate 40 is also provided with a tension notch 42 and a first tensioning part 43 and a second tensioning part 44. The mounting hole 41 can be reduced by adjusting the locking element, further improving the stability and accuracy of the imaging device. These designs together enable multi-dimensional flexible adjustment of the imaging device in visual inspection equipment, improving inspection efficiency and accuracy.

[0100] In the description herein, it should be understood that the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationships shown in the accompanying drawings, and are used only for ease of description and simplification of operation. They 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" and "second" are merely used for distinction in description and have no special meaning.

[0101] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0102] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0103] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. An imaging device mounting assembly, characterized by, It includes a first plate portion (10) and at least one adjustable component (100), the adjustable component (100) comprising: The second plate (20) is slidably connected to the first plate (10) via the first guide structure (51); a first adjustment mechanism (61) is provided between the second plate (20) and the first plate (10), and the first adjustment mechanism (61) is used to move the second plate (20) relative to the first plate (10); The third plate (30) is slidably connected to the second plate (20) via the second guide structure (52); a second adjustment mechanism (62) is provided between the third plate (30) and the second plate (20), and the second adjustment mechanism (62) is used to move the third plate (30) relative to the second plate (20); A support plate portion (40) protrudes from the third plate portion (30); the support plate portion (40) is used to provide an installation position for the imaging device; The first plate portion (10), the second plate portion (20), and the third plate portion (30) are stacked together, and one of the first guide structure (51) and the second guide structure (52) is a horizontal guide structure and the other is a vertical guide structure.

2. The imaging device mounting assembly according to claim 1, characterized in that, The first guide structure (51) is a transverse guide structure, and the first adjustment mechanism (61) is used to drive the second plate part (20) to move relative to the first plate part (10) in the y direction; the second guide structure (52) is a vertical guide structure, and the second adjustment mechanism (62) is used to drive the third plate part (30) to move relative to the second plate part (20) in the z direction; the first plate part (10), the second plate part (20), and the third plate part (30) are arranged in the x direction.

3. The imaging device mounting assembly according to claim 2, characterized in that, The second plate portion (20) is configured to rotate relative to the first plate portion (10) about the x-direction.

4. The imaging device mounting assembly according to claim 3, characterized in that, The first plate portion (10) is provided with a first guide groove (11), and the first guide structure (51) is slidably installed in the first guide groove (11); The second plate portion (20) is provided with a mounting shaft (53) on the side close to the first plate portion (10), and the first guide structure (51) is provided with a shaft hole (5111) on the side close to the second plate portion (20). The mounting shaft (53) is inserted into the shaft hole (5111) and the mounting shaft (53) extends along the x direction.

5. The imaging device mounting assembly according to claim 2, characterized in that, The first adjustment mechanism (61) includes a first protrusion (611), a second protrusion (612), and a first adjustment bolt (613); the first protrusion (611) is disposed on the first plate portion (10), and the second protrusion (612) is disposed on the second plate portion (20); the first adjustment bolt (613) is disposed along the y-direction; One of the first protrusion (611) and the second protrusion (612) is threadedly connected to the first adjusting bolt (613), and the other abuts against the end of the first adjusting bolt (613), so that when the first adjusting bolt (613) rotates under the action of external force, it drives the second protrusion (612) and the second plate (20) to move in the y direction.

6. The imaging device mounting assembly according to claim 5, characterized in that, At least two sets of the adjustable components (100) are provided at intervals along the y direction on the first plate portion (10); The first plate portion (10) is provided with a plurality of first fixing portions (12) spaced apart along the y direction, so that the first protrusion (611) of at least one of the adjustable components (100) can be installed on any of the first fixing portions (12).

7. The imaging device mounting assembly according to any one of claims 1 to 6, characterized in that, The support plate (40) is provided with an assembly hole (41), which extends vertically through the support plate (40) and is used to install the detection imaging device (90).

8. The imaging device mounting assembly according to claim 7, characterized in that, The adjustable component (100) includes a rotation adjustment mechanism (63) which is mounted on the support plate (40). The rotation adjustment mechanism (63) includes a pushing part which is used to drive the imaging device to rotate within the mounting hole (41) when the imaging device passes through the mounting hole (41).

9. The imaging device mounting assembly according to claim 8, characterized in that, The support plate (40) is provided with one or more spaced-apart translation adjustment mechanisms (63); Each of the aforementioned translation adjustment mechanisms (63) includes an adjustment seat (631) connected to the support plate portion (40) and a translation adjustment bolt (632). At least a portion of the adjustment seat (631) protrudes relative to the support plate portion (40), and the protruding portion is provided with a translation adjustment screw hole. The translation adjustment bolt (632) passes through the translation adjustment screw hole, and the end of the translation adjustment bolt (632) is used to drive rotation within the mounting hole (41) when the imaging device passes through the mounting hole (41).

10. The imaging device mounting assembly according to claim 7, characterized in that, The support plate portion (40) has a tension notch (42) on the side opposite to the third plate portion (30), and the tension notch (42) communicates with the assembly hole (41); the support plate portion (40) includes a first tension portion (43) and a second tension portion (44) located on both sides of the tension notch (42), and the first tension portion (43) and the second tension portion (44) are configured to move closer to each other under the action of the locking member to reduce the tension notch (42).

11. A defect detection device, characterized in that, It includes a detection platform, a detection imaging device (90), and an imaging device mounting assembly as described in any one of claims 1 to 10, wherein the detection imaging device (90) is mounted on the support plate portion (40); The detection platform is used to support the circuit board to be detected, and the lens of the detection imaging device (90) is oriented toward the detection platform.

Images