detection mechanism

Abstract

The utility model provides a kind of detection mechanism, it is related to optical detection technical field.Detection mechanism is used to carry out defect detection to lens, and detection mechanism includes rack, optical detection component, bearing plate and positioning component: optical detection component is set to rack, and optical detection component includes detection camera;Bearing plate is set to rack, and it is below detection camera, and bearing plate is used to carry lens;Positioning component is set to optical detection component, and positioning component includes at least one laser emitter, and laser emitter is used to emit laser to bearing plate, to define the article area of placing lens on bearing plate on circle.The detection mechanism can improve the detection result accuracy and detection efficiency of lens.

Description

Technical Field

[0001] This utility model relates to the field of optical detection technology, and in particular to a detection mechanism. Background Technology

[0002] For optical lenses, the lens surface size and outer contour size are core parameters that determine the lens's imaging quality and assembly compatibility, and their testing accuracy is directly related to the performance of the end device. With the diversified demands for lens specifications in consumer electronics, security monitoring, and other fields, the testing of these two parameters has become an indispensable part of the mass production process.

[0003] In existing technologies, visual inspection equipment is typically used to complete the above-mentioned inspection process. However, during actual inspection, when loading lenses manually or semi-automatically, there is a risk that the effective inspection area may be misaligned with the camera's field of view due to issues such as deviations in lens placement angle. When the effective inspection area is misaligned with the camera's field of view, it not only leads to missed edge features and distorted size data, affecting the accuracy of lens inspection results, but also reduces inspection efficiency because it requires secondary adjustments to the lens placement. Utility Model Content

[0004] The purpose of this invention is to provide a testing mechanism that can improve the accuracy and efficiency of lens testing results.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] An inspection agency is used to inspect lenses for defects, the inspection agency comprising:

[0007] frame;

[0008] An optical inspection assembly is disposed on the frame, and the optical inspection assembly includes an inspection camera;

[0009] A support plate is disposed on the frame and located below the inspection camera; the support plate is used to support the lens.

[0010] A positioning component is disposed on the optical detection component. The positioning component includes at least one laser emitter for emitting a laser beam toward the carrier plate to delineate the placement area for placing the lens on the carrier plate.

[0011] As a further technical solution, the optical detection assembly also includes a protective cylinder, which covers the detection camera;

[0012] The laser emitter is configured as a cross-shaped positioning laser or a line laser, and multiple laser emitters are provided, which are spaced apart along the circumference of the protective cylinder at the lower end of the protective cylinder.

[0013] Alternatively, the laser emitter may be configured as a ring laser, located at the lower end of the protective cylinder.

[0014] As a further technical solution, the detection mechanism also includes an adjustment component, through which the laser emitter can be adjusted and positioned on the protective cylinder.

[0015] As a further technical solution, the adjustment component includes an adjustment block, an adjustment groove is provided on the lower end face of the protective cylinder, the adjustment groove extends circumferentially along the protective cylinder, an adjustment protrusion is provided on the upper end face of the adjustment block, the adjustment protrusion is slidably disposed in the adjustment groove, and the laser emitter is disposed on the lower end face of the adjustment block.

[0016] As a further technical solution, the section assembly also includes an elastic damping element, which is disposed on the outer wall of the adjusting protrusion and / or the side wall of the adjusting groove.

[0017] As a further technical solution, the width of the adjustment groove is reduced from the bottom wall of the adjustment groove to the opening end of the adjustment groove.

[0018] As a further technical solution, the section assembly also includes a telescopic rod, the two ends of which are respectively connected to the lower end face of the adjusting block and the laser emitter, and the telescopic rod extends and retracts in the vertical direction.

[0019] As a further technical solution, the carrier plate is provided with a detection perspective area, which is recessed in the direction away from the detection camera to form a receiving groove, and the laser emitter defines the placement area within the receiving groove.

[0020] As a further technical solution, the support plate is provided with marking scales corresponding to the receiving groove.

[0021] As a further technical solution, the testing mechanism also includes a housing connected to the frame, the optical testing component being located inside the housing, and a storage clearance opening being provided on the housing corresponding to the storage area.

[0022] Compared with existing technologies, the technical advantages of the testing mechanism provided by this utility model are as follows:

[0023] Because the inspection camera is mounted on the frame, the support plate is positioned below the inspection camera, and the positioning component is adjustable within the optical inspection assembly, the laser emitter is activated first to mark the placement area on the support plate when inspecting a lens. The lens is then placed in the placement area, and the inspection camera is activated to inspect the lens. Throughout this process, the laser emitter pre-marks the placement area, allowing for intuitive lens placement based on the laser markings during loading. This ensures precise alignment between the lens and the inspection camera, reducing the risk of misalignment leading to issues such as missed edge detection or incorrect dimensional data, thus improving the accuracy of the inspection results. Furthermore, it avoids the need for secondary lens adjustments, significantly improving inspection efficiency. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the detection mechanism provided in this embodiment of the utility model;

[0026] Figure 2 This is a partial structural schematic diagram of the detection mechanism provided in this embodiment of the utility model;

[0027] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle.

[0028] In the picture:

[0029] 10. Lenses;

[0030] 100. Rack;

[0031] 200. Optical inspection assembly; 210. Inspection camera; 220. Protective housing; 221. Adjustment groove;

[0032] 300, Support plate; 310, Receiving groove;

[0033] 400. Laser emitter;

[0034] 500. Adjustment component; 510. Adjustment block; 511. Adjustment protrusion; 520. Telescopic rod;

[0035] 600. Shell. Detailed Implementation

[0036] Before explaining any implementation of this application in detail, it should be understood that this application is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0037] In this application, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0038] In this application, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this application generally indicates that the preceding and following related objects have an "and / or" relationship.

[0039] In this application, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0040] In this application, those skilled in the art will understand that relative terms (e.g., “about,” “approximately,” “basically,” etc.) used in conjunction with quantities or conditions are to include the values ​​and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances associated with the particular value due to manufacturing, assembly, use, etc. Such terms should also be considered as disclosing a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​not using relative terms should also be disclosed as specific values ​​with tolerances. Furthermore, “basically” when expressing relative angular relationships (e.g., substantially parallel, substantially perpendicular) may refer to a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) added to or subtracted from the indicated angle.

[0041] In this application, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0042] In this application, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when an element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent positive orientation but can also be understood as lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.

[0043] Combination Figures 1 to 3 As shown, the inspection mechanism provided in this embodiment is used to inspect the lens 10 for defects. This inspection mechanism can improve the accuracy and efficiency of the inspection results for the lens 10. The inspection mechanism includes a frame 100, an optical inspection component 200, a support plate 300, and a positioning component: the optical inspection component 200 is disposed on the frame 100 and includes an inspection camera 210; the support plate 300 is disposed on the frame 100 and located below the inspection camera 210, and is used to support the lens 10; the positioning component is disposed on the optical inspection component 200 and includes at least one laser emitter 400, which is used to emit a laser beam onto the support plate 300, and the laser spot forms a placement area for the lens 10 on the support plate 300.

[0044] Since the inspection camera 210 is mounted on the frame 100, the support plate 300 is positioned below the inspection camera 210, and the positioning component is adjustablely mounted on the optical inspection component 200, when inspecting the lens 10, the laser emitter 400 is activated first, marking the placement area on the support plate 300. The lens 10 is then placed in the placement area, and the inspection camera 210 is activated to inspect the lens 10. Throughout the process, the laser emitter 400 pre-marks the placement area, allowing for intuitive placement of the lens 10 based on the laser markings during loading. This ensures precise alignment between the lens 10 and the inspection camera 210, reducing the risk of misalignment leading to issues such as missed edge inspections or incorrect dimensional data, thereby improving the accuracy of the inspection results. Simultaneously, it avoids the need for secondary adjustments to the lens 10, significantly improving inspection efficiency.

[0045] Preferably, the optical detection assembly 200 further includes a protective cylinder 220, which covers the detection camera 210; the protective cylinder 220 provides physical protection for the detection camera 210, reduces the interference of external dust and vibration on the detection camera 210, and ensures the stability during detection and the accuracy of the detection results.

[0046] The laser emitter 400 is configured as a crosshair positioning laser or a line laser. Multiple laser emitters 400 are arranged at intervals along the circumference of the protective cylinder 220 at its lower end. The crosshair and line lasers form precise boundaries through multi-directional laser intersection, adapting to rectangular, irregularly shaped, and other non-circular lenses 10. Alternatively, the laser emitter 400 can be configured as a ring laser, located at the lower end of the protective cylinder 220. The ring laser directly projects a ring laser beam matching the outer contour of the circular lens 10, visually defining the placement area and offering greater adaptability. The multiple laser emitters 400 arranged at intervals along the circumference of the protective cylinder 220 strengthen the positioning mark from multiple angles, preventing positioning failure due to obstruction of a single laser emitter 400 and improving positioning reliability.

[0047] Preferably, the testing mechanism further includes an adjustment component 500, through which the laser emitter 400 can be adjusted and positioned on the protective cylinder 220. By setting the adjustment component 500, the position of the laser emitter 400 can be flexibly adjusted. When testing lenses 10 of different sizes or shapes, there is no need to replace the positioning component; simply adjusting the position of each laser emitter 400 using the adjustment component 500 can change the position and size of the storage area, thereby improving the applicability of the testing mechanism.

[0048] Furthermore, the adjustment assembly 500 includes an adjustment block 510. An adjustment groove 221 is provided on the lower end face of the protective cylinder 220, extending circumferentially along the protective cylinder 220. An adjustment protrusion 511 is provided on the upper end face of the adjustment block 510, slidingly disposed within the adjustment groove 221. The laser emitter 400 is disposed on the lower end face of the adjustment block 510. The adjustment block 510 can drive the laser emitter 400 to slide circumferentially within the adjustment groove 221, precisely adjusting the projection angle and position of the laser emitter 400 to ensure a perfect match between the placement area and the outer contour of the lens 10. Simultaneously, due to its simple structure and convenient adjustment, the sliding mechanism allows operators to quickly complete positioning calibration, reducing debugging time and thus improving testing efficiency.

[0049] In some other embodiments, an adjusting slide rail may be provided on the lower end face of the protective cylinder 220. The adjusting slide rail extends circumferentially along the protective cylinder 220, and an adjusting groove is provided on the upper end face of the adjusting block 510. The adjusting groove slides in slidably engage with the adjusting slide rail.

[0050] Preferably, the adjustment assembly 500 further includes an elastic damping element disposed on the outer wall of the adjustment protrusion 511 and / or the side wall of the adjustment groove 221.

[0051] The elastic damping element limits the relative position of the adjusting block 510 within the adjusting groove 221 through friction. During the operation of the detection mechanism or the placement of the lens 10, the damping force ensures that the relative position of the adjusting block 510 remains fixed, ensuring long-term accuracy of the placement area enclosed by the laser emitter 400, reducing repeated calibrations caused by positioning offsets, and improving detection stability and efficiency. The material of the elastic damping element can be adapted to actual needs, such as nitrile rubber, silicone rubber, polyurethane, or polyoxymethylene; no specific limitation is made in this embodiment.

[0052] Preferably, the width of the adjustment groove 221 decreases from the bottom wall of the adjustment groove 221 to the opening end of the adjustment groove 221, that is, the adjustment groove 221 is set as a dovetail groove, and the shape of the adjustment protrusion 511 is set to correspond to the adjustment groove 221. By cooperating with the adjustment groove 221 and the corresponding shape of the adjustment protrusion 511, the relative position of the adjustment block 510 in the vertical direction is restricted, so as to avoid the situation that the projection range of the laser emitter 400 is blurred due to the height deviation.

[0053] In other embodiments, the cross-sectional shape of the adjusting groove 221 along its extension direction can also be set as a "T" shape or a trapezoid, not limited to the dovetail groove in this embodiment.

[0054] Preferably, the adjustment assembly 500 further includes a telescopic rod 520, with its two ends connected to the lower end face of the adjustment block 510 and the laser emitter 400, respectively. The telescopic rod 520 extends and retracts in the vertical direction. During the inspection process, for lenses 10 with different thicknesses, the focusing state of the laser emitter 400 on the support plate 300 can be changed by adjusting the extension and retraction of the telescopic rod 520. This ensures clear marking of the placement area and avoids laser line divergence due to excessive distance or overlapping light spots due to excessive distance. Simultaneously, by adjusting the extension and retraction of the telescopic rod 520, the laser emitter 400 can be adapted to scenarios requiring fine-tuning of height during the inspection process, thereby further improving positioning accuracy.

[0055] Preferably, the support plate 300 is provided with a detection viewing area, which is recessed in the direction away from the detection camera 210 to form a receiving groove 310. The laser emitter 400 is positioned in the receiving groove 310 to guide the placement of the lens 10. The receiving groove 310 reduces the probability of the lens 10 sliding due to slight vibration, further reducing the risk of misalignment of the lens 10. At the same time, the detection viewing area is recessed in the direction away from the detection camera 210 to form the receiving groove 310. After placing the lens 10 in the receiving groove 310, there is no need to flip the lens 10. The detection module (not shown in the figure) located below the support plate 300 can be used to detect the lower surface of the lens 10, thereby further improving the comprehensiveness and accuracy of the detection results.

[0056] Preferably, the support plate 300 is provided with marking scales (not shown in the figure) corresponding to the receiving groove 310. The marking scales provide an auxiliary reference for the laser emitter 400 to circle the object area. The operator can visually confirm the size of the object area circled by the laser emitter 400 through the marking scales and quickly compare it with the specifications of the lens 10 to be tested to ensure accurate adjustment. At the same time, in the calibration stage before batch testing, the marking scales can quantify the adjustment accuracy of the laser emitter 400 and improve the debugging efficiency.

[0057] Preferably, the testing mechanism further includes a housing 600, which is connected to the frame 100. The optical testing component 200 is located inside the housing 600, and the housing 600 is provided with a storage clearance opening corresponding to the storage area.

[0058] Combination Figure 1 As shown, by setting up the housing 600, on the one hand, the interior of the housing 600 is a closed space, reducing the interference of external light on the laser emitter 400 and the detection camera 210, and preventing the laser line of the laser emitter 400 from becoming blurred and the detection camera 210 from being overexposed due to external light, thereby ensuring clear positioning of the laser emitter 400 and accurate detection image of the detection camera 210. On the other hand, the housing 600 protects the laser emitter 400 and the detection camera 210, reducing the impact of external debris such as dust on the laser emitter 400 and the detection camera 210, thereby reducing the maintenance frequency of the detection mechanism and extending its service life. At the same time, the placement clearance opening is set to correspond with the placement area, which facilitates the placement or removal of the lens 10 from the placement area while minimizing the impact of external factors on the internal structure of the housing 600, thereby balancing operability and detection stability.

[0059] The inspection mechanism, in conjunction with the laser emitter 400, the carrier plate 300, and the inspection camera 210, is used not only to inspect the lens 10 but, in some embodiments, also to inspect other transparent workpieces, such as optical windows, touch panels, and silicon wafers. Clearly, the above embodiments of this utility model are merely examples for illustrative purposes and are not intended to limit the implementation of this utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An inspection agency for inspecting defects in a lens (10), characterized in that, The testing institutions include: Rack (100); An optical inspection assembly (200) is disposed on the frame (100), the optical inspection assembly (200) including an inspection camera (110); A support plate (300) is disposed on the frame (100) and located below the detection camera (110). The support plate (300) is used to support the lens (10). A positioning component is disposed on the optical detection component (200), the positioning component including at least one laser emitter (400) for emitting a laser onto the carrier plate (300) to delineate a placement area on the carrier plate (300) for placing the lens (10).

2. The testing mechanism according to claim 1, characterized in that, The optical detection assembly (200) also includes a protective cylinder (220), which covers the detection camera (110); The laser emitter (400) is configured as a cross-shaped positioning laser or a line laser. Multiple laser emitters (400) are provided, and multiple laser emitters (400) are arranged at intervals along the circumference of the protective cylinder (220) at the lower end of the protective cylinder (220). Alternatively, the laser emitter (400) may be configured as a ring laser, and the laser emitter (400) may be located at the lower end of the protective cylinder (220).

3. The testing mechanism according to claim 2, characterized in that, The detection mechanism also includes an adjustment component (500), and the laser emitter (400) is adjustablely positioned on the protective cylinder (220) via the adjustment component (500).

4. The testing mechanism according to claim 3, characterized in that, The adjustment assembly (500) includes an adjustment block (510), and the lower end face of the protective cylinder (220) is provided with an adjustment groove (221). The adjustment groove (221) extends circumferentially along the protective cylinder (220). The upper end face of the adjustment block (510) is provided with an adjustment protrusion (511), which is slidably disposed in the adjustment groove (221). The laser emitter (400) is disposed on the lower end face of the adjustment block (510).

5. The testing mechanism according to claim 4, characterized in that, The section assembly (500) further includes an elastic damping element disposed on the outer wall of the adjusting protrusion (511) and / or the side wall of the adjusting groove (221).

6. The testing mechanism according to claim 4, characterized in that, The width of the adjustment groove (221) decreases from the bottom wall of the adjustment groove (221) to the opening end of the adjustment groove (221).

7. The testing mechanism according to claim 4, characterized in that, The section assembly (500) also includes a telescopic rod (520), the two ends of which are connected to the lower end face of the adjusting block (510) and the laser emitter (400) respectively, and the telescopic rod (520) extends and retracts in the vertical direction.

8. The testing mechanism according to claim 1, characterized in that, The support plate (300) is provided with a detection perspective area, which is recessed in the direction away from the detection camera (110) to form a receiving groove (310), and the laser emitter (400) defines the placement area in the receiving groove (310).

9. The testing mechanism according to claim 8, characterized in that, The support plate (300) is provided with marking scales corresponding to the receiving groove (310).

10. The testing institution according to any one of claims 1-9, characterized in that, The detection mechanism also includes a housing (600), which is connected to the frame (100). The optical detection component (200) is located inside the housing (600), and the housing (600) has a storage clearance opening corresponding to the storage area.

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