Measuring device
By incorporating clearance holes and a combined light source illumination method in the measuring device, the problem of unclear images in Bluetooth headset contact detection was solved, thus improving the reliability of the detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN SMARTMORE TECH CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-06-23
AI Technical Summary
Existing measuring devices often produce unclear images and low light intensity contrast in weak boundary areas when detecting Bluetooth headset contacts due to complex reflections and refractions of light around the contacts, affecting the reliability of the detection.
A measuring device was designed, including a support component, an auxiliary component, and a detection mechanism. By setting clearance holes on the fixed plate and using a combination of upper and lower light sources for illumination, the light contrast in weak boundary areas is enhanced. Combined with a zoom lens for image capture, the image clarity is improved.
It effectively enhances the light contrast in the weak boundary area of the Bluetooth headset contact, improving image clarity and the reliability of detection results.
Smart Images
Figure CN224399240U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of optical detection technology, and in particular to a measuring device. Background Technology
[0002] Bluetooth headset contacts are crucial components for connecting and transmitting data between Bluetooth headsets and charging cases or other devices. For example, when the Bluetooth headset is placed in the charging case, the contacts make contact with the corresponding metal contacts inside the case, enabling the case to charge the headset. When pairing the Bluetooth headset with a device, the contacts act as a data transmission channel, transmitting information such as the headset model and battery level to the device. Therefore, strict quality control of Bluetooth headset contacts is essential during manufacturing. This is typically achieved using measuring devices to detect defects in the Bluetooth headset contacts.
[0003] Existing measurement devices typically combine a light source with a vision measurement device to capture images of Bluetooth headset contacts and compare them with standard images to complete the defect detection process. However, in actual inspection, the large curvature of the periphery of the Bluetooth headset contacts, especially the curved areas on both sides, leads to complex reflection and refraction paths of light in these areas. When light from the light source illuminates the curved areas, uneven reflection and shadowing are likely to occur, making it difficult for the camera to capture clear and accurate image information. Furthermore, the low light intensity contrast in weak boundary areas and the unclear boundary with the surrounding areas reduce the reliability of defect detection for Bluetooth headset contacts. Utility Model Content
[0004] Therefore, it is necessary to provide a measuring device to address the aforementioned technical problems. This measuring device can improve the image clarity when detecting defects in Bluetooth headset contacts, thereby improving the reliability of the detection results.
[0005] A measuring device is used to detect defects in the contacts of a Bluetooth headset. The measuring device includes:
[0006] The support assembly includes a first support frame and a second support frame that are disposed opposite to each other;
[0007] An auxiliary component is disposed on the first support frame. At least one clearance hole is provided on the fixing plate of the auxiliary component. When the contact is placed on the fixing plate, the weak boundary area of the contact is disposed opposite to the clearance hole.
[0008] The testing mechanism includes an upper light source assembly, a lower light source, and a vision inspection assembly. The upper light source assembly and the vision inspection assembly are both disposed on the second support frame, and the upper light source assembly is located between the auxiliary assembly and the vision inspection assembly. The lower light source is disposed on the first support frame and located below the fixed plate, and the light from the lower light source can illuminate the weak boundary area of the contact point through the clearance hole.
[0009] As a further technical solution, the auxiliary component also includes two auxiliary support members, and the fixing plate is provided with bearing holes;
[0010] Along the left-right direction, the two auxiliary support members are connected and disposed on the inner wall of the bearing hole, so that the two auxiliary support members respectively cooperate with the side walls at the left and right ends of the bearing hole to form two clearance holes, and the two auxiliary support members are used to support the two ends of the contact point.
[0011] As a further technical solution, the auxiliary component also includes a front support and a rear support. The front support and the rear support are respectively connected to two opposite sidewalls on the bearing hole along the front-rear direction. The front support and the rear support are arranged opposite to each other and are both used to support the middle part of the contact point.
[0012] As a further technical solution, the upper surfaces of the front support and the rear support are on the same horizontal plane and are both higher than the upper surfaces of the two auxiliary support members.
[0013] As a further technical solution, an adsorption hole is provided on the upper end surface of the rear support member, and an adsorption channel communicating with the adsorption hole is provided on the inner wall of the rear support member. The adsorption channel is used to communicate with an external vacuum device.
[0014] As a further technical solution, the auxiliary component also includes four limiting members. The two auxiliary support members and the two side walls in the front and rear directions of the bearing hole form a rectangular area. The four limiting members are arranged on the fixing plate one-to-one with the four corners of the rectangular area, and the four limiting members cooperate to form a accommodating limiting space.
[0015] As a further technical solution, the sidewalls of the four limiting members near the accommodating limiting space are all configured as arc-shaped surfaces.
[0016] As a further technical solution, the upper light source assembly includes an upper light source and a first mounting bracket, wherein the upper light source is adjustablely mounted on the second support bracket via the first mounting bracket;
[0017] The visual inspection component includes a zoom lens and a second mounting bracket, wherein the zoom lens is mounted on the second support frame via the second mounting bracket;
[0018] The axes of the upper light source, the lower light source, and the zoom lens are collinear.
[0019] As a further technical solution, the upper light source is configured as a ring light source, and the lower light source is configured as a parallel light source.
[0020] As a further technical solution, the detection mechanism also includes an adjustment component and an adjustment drive component. The upper light source component and the visual detection component are both mounted on the second support frame via the adjustment component. The adjustment drive component is mounted on the second support frame and is connected to the adjustment component for driving the upper light source component and the visual detection component to rise and fall.
[0021] The beneficial effects of the above measuring device are as follows:
[0022] Because the mounting plate has at least one clearance hole, the lower light source is located below the mounting plate, while the upper light source assembly and the vision inspection assembly are both located above the mounting plate, with the upper light source assembly positioned between the mounting plate and the vision inspection assembly. Therefore, when defect detection of the contact point is required, the contact point is first placed on the mounting plate, with the weak boundary area of the contact point aligned with the clearance hole. Then, the upper light source assembly is activated first, and in conjunction with the vision inspection assembly, an image of the upper surface of the contact point is captured for subsequent defect detection. Next, the lower light source is activated, while ensuring the upper light source is on. The light from the lower light source illuminates the weak boundary area of the contact point through the clearance hole, enhancing the light contrast in the weak boundary area and thus strengthening the boundary between the weak boundary area and the surrounding area. This facilitates capturing a clear image of the weak boundary area, enabling subsequent defect detection of the weak boundary area and improving the reliability of the detection results. Attached Figure Description
[0023] 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.
[0024] Figure 1 This is a schematic diagram of the structure of the measuring device provided in the embodiments of this application;
[0025] Figure 2 This is a schematic diagram of the structure of the auxiliary components in the measuring device provided in the embodiments of this application;
[0026] Figure 3 A front view of the auxiliary components in the measuring device provided in the embodiments of this application;
[0027] Figure 4 This is a schematic diagram of the contact points that the measuring device provided in this embodiment needs to measure.
[0028] In the picture:
[0029] 10. Contacts;
[0030] 100. Support assembly; 110. First support frame; 120. Second support frame;
[0031] 200, Auxiliary component; 210, Fixing plate; 211, Clearance hole; 212, Bearing hole; 220, Auxiliary support component; 230, Front support component; 240, Rear support component; 241, Adsorption hole; 250, Limiting component;
[0032] 300. Inspection mechanism; 310. Upper light source assembly; 311. Upper light source; 312. First mounting bracket; 320. Lower light source; 330. Visual inspection assembly; 331. Zoom lens; 332. Second mounting bracket; 340. Adjustment assembly; 350. Adjustment drive component. Detailed Implementation
[0033] 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.
[0034] 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.
[0035] 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.
[0036] 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.
[0037] 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.
[0038] 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.
[0039] 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.
[0040] Combination Figures 1 to 4As shown, the measuring device provided in this embodiment is used to complete the defect detection of the contact 10 on the Bluetooth headset and improve the image clarity when detecting defects in the contact 10 of the Bluetooth headset, thereby improving the reliability of the detection results. Specifically, the measuring device includes a support assembly 100, an auxiliary assembly 200, and a detection mechanism 300. The support assembly 100 includes a first support frame 110 and a second support frame 120 arranged opposite to each other. The auxiliary assembly 200 is disposed on the first support frame 110, and the fixed plate 210 in the auxiliary assembly 200 is provided with at least one clearance hole 211. When the contact 10 is placed on the fixed plate 210, the weak boundary area of the contact 10 is arranged opposite to the clearance hole 211. The detection mechanism 300 includes an upper light source assembly 310, a lower light source 320, and a vision detection assembly 330. The upper light source assembly 310 and the vision detection assembly 330 are both disposed on the second support frame 120, and the upper light source assembly 310 is located between the auxiliary assembly 200 and the vision detection assembly 330. The lower light source 320 is disposed on the first support frame 110 and located below the fixed plate 210. The light from the lower light source 320 can illuminate the weak boundary area of the contact 10 through the clearance hole 211.
[0041] Since the fixing plate 210 is provided with at least one clearance hole 211, the lower light source 320 is located below the fixing plate 210, and the upper light source assembly 310 and the vision inspection assembly 330 are both located above the fixing plate 210, with the upper light source assembly 310 located between the fixing plate 210 and the vision inspection assembly 330. Therefore, when defect detection of contact 10 is required, contact 10 is first placed on fixed plate 210, with the weak boundary area of contact 10 facing the clearance hole 211. Then, the upper light source assembly 310 is activated, and the upper light source 311 cooperates with the vision inspection assembly 330 to capture an image of the upper surface of contact 10 for subsequent defect detection. Then, the lower light source 320 is activated, while ensuring that the upper light source 311 is turned on. The light from the lower light source 320 shines through the clearance hole 211 onto the weak boundary area of contact 10 to enhance the light contrast of the weak boundary area of contact 10, thereby enhancing the boundary between the weak boundary area of contact 10 and the surrounding area, making it easier to capture a clear image of the weak boundary area of contact 10, thus facilitating subsequent defect detection of the weak boundary area and improving the reliability of the detection results.
[0042] It should be noted that a weak boundary region refers to an area on the contact surface where the grayscale or color difference between the target and the background (or adjacent areas) in the image is not obvious due to factors such as physical structure, material properties, or light reflection, resulting in blurred boundary features.
[0043] Preferably, the auxiliary component 200 further includes two auxiliary support members 220. The fixing plate 210 is provided with a bearing hole 212. Along the left and right direction, the two auxiliary support members 220 are connected to the inner wall of the bearing hole 212 so that the two auxiliary support members 220 respectively cooperate with the side walls at the left and right ends of the bearing hole 212 to form two clearance holes 211. Both auxiliary support members 220 are used to support the two ends of the contact 10.
[0044] When contact 10 is placed on the fixed plate 210 for testing, both ends of contact 10 are located on two auxiliary supports 220. Under the support of the auxiliary supports 220, the weak boundary areas at both ends of contact 10 correspond one-to-one with the two clearance holes 211, while the boundary area in the middle of contact 10 corresponds to the bearing hole 212. In this way, when performing defect detection on contact 10, the light contrast can be improved in both the boundary area in the middle of contact 10 and the weak boundary areas at both ends of contact 10, enhancing the boundary between the boundary area in the middle of contact 10 and the weak boundary areas at both ends of contact 10 and the surrounding area, ensuring the clarity of the images of the boundary area in the middle of contact 10 and the weak boundary areas at both ends of contact 10.
[0045] Since part of the sidewall of the contact 10 is curved, in order to prevent the contact 10 from swaying or rolling in the front-back direction when it is placed on the fixed plate 210 for testing, in this embodiment, the auxiliary component 200 also includes a front support 230 and a rear support 240. The front support 230 and the rear support 240 are respectively connected to two opposite sidewalls on the bearing hole 212 in the front-back direction, and the front support 230 and the rear support 240 are arranged opposite to each other and are both used to support the middle part of the contact 10, and to ensure the placement stability of the contact 10 in the front-back direction, thereby ensuring the image capture effect of the contact 10.
[0046] Combination Figure 4 As shown, based on the concave structure of the lower end face of the contact 10, in order to further improve the stability of the contact 10 after it is placed behind the fixing plate 210, in this embodiment, the upper end faces of the front support member 230 and the rear support member 240 are on the same horizontal plane and are both higher than the upper end faces of the two auxiliary support members 220.
[0047] Furthermore, the upper surface of the rear support member 240 is provided with an adsorption hole 241, and the inner wall of the rear support member 240 is provided with an adsorption channel communicating with the adsorption hole 241. The adsorption channel is used to communicate with an external vacuum device. When the contact 10 is placed on the fixed plate 210, the two ends of the contact 10 are respectively located on the two auxiliary supports 220, and the front support member 230 and the rear support member 240 are used to support the middle part of the contact 10. At this time, the external vacuum device is started, and the contact 10 is adsorbed onto the rear support member 240 through the adsorption channel and the adsorption port, thereby further improving the placement stability of the contact 10. After the contact 10 has been tested, the external vacuum device stops operating, so that the contact 10 can be removed from the fixed plate 210.
[0048] Preferably, the auxiliary component 200 further includes four limiting members 250. The two auxiliary support members 220 and the two side walls of the bearing hole 212 in the front-rear direction enclose a rectangular area. The four limiting members 250 are disposed on the fixing plate 210 corresponding to the four corners of the rectangular area, and the four limiting members 250 cooperate to form a accommodating limiting space. The contact 10 is placed in the limiting space so that the contact 10 is placed on the fixing plate 210, and the weak boundary areas at both ends of the contact 10 correspond one-to-one with the two clearance holes 211. This ensures the detection effect while ensuring the limiting effect of the contact 10, preventing the contact 10 from detaching from the fixing plate 210 in the front-rear direction and the left-right direction.
[0049] Since part of the sidewall of the contact 10 is curved, in order to ensure that the sidewall of the limiting space fits better with the peripheral wall of the contact 10 after the contact 10 is placed in the limiting space, in this embodiment, the sidewalls of the four limiting members 250 near the accommodating limiting space are all set as arc-shaped surfaces.
[0050] Preferably, the upper light source assembly 310 includes an upper light source 311 and a first mounting bracket 312, wherein the upper light source 311 is adjustablely mounted on the second support bracket 120 via the first mounting bracket 312; the visual inspection assembly 330 includes a zoom lens 331 and a second mounting bracket 332, wherein the zoom lens 331 is mounted on the second support bracket 120 via the second mounting bracket 332; the axis of the upper light source 311, the axis of the lower light source 320, and the axis of the zoom lens 331 are collinear.
[0051] Specifically, the first mounting bracket 312 is provided with an adjustment elongated hole extending along the height direction. The light source connector passes through the adjustment elongated hole and is connected to the second support bracket 120. The upper light source 311 is fixedly mounted on the first mounting bracket 312. During the testing process, according to the actual testing requirements, the distance between the upper light source 311 and the zoom lens 331 or the fixed plate 210 can be finely adjusted by adjusting the relative position of the adjustment elongated hole and the light source connector to further ensure measurement accuracy.
[0052] By aligning the axes of the upper light source 311, the lower light source 320, and the zoom lens 331 coaxially, shadows and reflections caused by differences in illumination angles can be effectively reduced. The coaxial light source ensures that light is evenly distributed across the surface of the contact point 10, avoiding shadows. This allows the zoom lens 331 to capture the contours and features of the contact point 10 more clearly and accurately, improving measurement accuracy. Furthermore, it provides uniform illumination to the contact point 10. Uniform and shadow-free illumination helps to fully utilize the optical performance of the zoom lens 331, improving imaging resolution. Simultaneously, coaxial illumination helps to highlight the details and edges of the contact point 10, enhancing image contrast. It also facilitates rapid focusing and positioning of the zoom lens 331, thereby improving detection efficiency.
[0053] Preferably, the upper light source 311 is configured as a ring light source, and the lower light source 320 is configured as a parallel light source. To achieve better edge detection, the light-emitting array in the upper light source 311 is cone-shaped, illuminating the surface of the contact point 10 at a certain angle. This allows for diffuse reflection, illuminating a small area and thus the edge of the contact point 10. Furthermore, it ensures that weak boundary areas, which are difficult to measure, are clearly illuminated, facilitating imaging measurement by the zoom lens 331. To ensure clear backlight imaging, the parallel light source is configured as a telecentric coaxial light source. This telecentric coaxial light source eliminates boundary blurring caused by light source diffusion, improving the edge contour contrast of the contact point 10 during detection and thus enhancing image clarity and measurement accuracy.
[0054] Preferably, the detection mechanism 300 further includes an adjustment component 340 and an adjustment drive component 350. The upper light source component 310 and the visual detection component 330 are both mounted on the second support frame 120 via the adjustment component 340. The adjustment drive component 350 is mounted on the second support frame 120 and is connected to the adjustment component 340 for driving the upper light source component 310 and the visual detection component 330 to rise and fall.
[0055] Specifically, the adjustment drive 350 is configured as a telescopic drive, and the adjustment assembly 340 includes a first adjustment member and a second adjustment member that slides with the first adjustment member. The upper light source assembly 310 and the vision detection assembly 330 are both connected to the first adjustment member. The telescopic drive member is disposed on the second support frame 120 and is drive-connected to the first adjustment member. The second adjustment member is fixedly connected to the second support frame 120. During the detection process, according to actual detection requirements, the output shaft of the telescopic drive member adaptively extends and retracts as needed, thereby changing the relative positions of the upper light source assembly 310 and the vision detection assembly 330 with the contact point 10 to meet actual measurement requirements.
[0056] In other embodiments, the detection target of the measuring device is not limited to the contact point 10 of the Bluetooth headset; the measurement target can also be a chip, a printed circuit board, a ceramic insulator, etc.
[0057] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present 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. A measuring device for performing a defect detection on a contact (10) on a Bluetooth headset, characterized in that, The measuring device includes: The support assembly (100) includes a first support frame (110) and a second support frame (120) disposed opposite to each other; An auxiliary component (200) is disposed on the first support frame (110). The fixing plate (210) in the auxiliary component (200) is provided with at least one clearance hole (211). When the contact (10) is placed on the fixing plate (210), the weak boundary area of the contact (10) is disposed opposite to the clearance hole (211). The detection mechanism (300) includes an upper light source assembly (310), a lower light source (320), and a vision detection assembly (330). The upper light source assembly (310) and the vision detection assembly (330) are both disposed on the second support frame (120), and the upper light source assembly (310) is located between the auxiliary assembly (200) and the vision detection assembly (330). The lower light source (320) is disposed on the first support frame (110) and located below the fixing plate (210). The light from the lower light source (320) can illuminate the weak boundary area of the contact point (10) through the clearance hole (211).
2. The measuring device of claim 1, wherein, The auxiliary component (200) also includes two auxiliary support members (220), and the fixing plate (210) is provided with a bearing hole (212); Along the left-right direction, two auxiliary support members (220) are connected and disposed on the inner wall of the bearing hole (212) so that the two auxiliary support members (220) respectively cooperate with the side walls at the left and right ends of the bearing hole (212) to form two clearance holes (211), and the two auxiliary support members (220) are used to support the two ends of the contact (10).
3. The measuring device according to claim 2, characterized in that, The auxiliary component (200) further includes a front support (230) and a rear support (240). The front support (230) and the rear support (240) are respectively connected to two opposite sidewalls on the bearing hole (212) in the front-rear direction. The front support (230) and the rear support (240) are arranged opposite to each other and are both used to support the middle part of the contact (10).
4. The measuring device according to claim 3, characterized in that, The upper surfaces of the front support (230) and the rear support (240) are on the same horizontal plane and are both higher than the upper surfaces of the two auxiliary support members (220).
5. The measuring device according to claim 3, characterized in that, The upper end face of the rear support member (240) is provided with an adsorption hole (241), and the inner wall of the rear support member (240) is provided with an adsorption channel communicating with the adsorption hole (241). The adsorption channel is used to communicate with an external vacuum device.
6. The measuring device according to claim 2, characterized in that, The auxiliary component (200) also includes four limiting members (250). The two auxiliary support members (220) and the two side walls of the bearing hole (212) in the front and rear directions enclose a rectangular area. The four limiting members (250) are arranged on the fixing plate (210) in a one-to-one correspondence with the four corners of the rectangular area, and the four limiting members (250) cooperate to form a accommodating limiting space.
7. The measuring device according to claim 6, characterized in that, The sidewalls of the four limiting members (250) near the accommodating limiting space are all configured as arc-shaped surfaces.
8. The measuring device according to claim 1, characterized in that, The upper light source assembly (310) includes an upper light source (311) and a first mounting bracket (312). The upper light source (311) is adjustablely mounted on the second support bracket (120) via the first mounting bracket (312). The visual inspection component (330) includes a zoom lens (331) and a second mounting bracket (332), wherein the zoom lens (331) is mounted on the second support frame (120) via the second mounting bracket (332); The axes of the upper light source (311), the lower light source (320), and the zoom lens (331) are collinear.
9. The measuring device according to claim 8, characterized in that, The upper light source (311) is configured as a ring light source, and the lower light source (320) is configured as a parallel light source.
10. The measuring device according to any one of claims 1-9, characterized in that, The detection mechanism (300) further includes an adjustment component (340) and an adjustment drive component (350). The upper light source component (310) and the visual detection component (330) are both mounted on the second support frame (120) via the adjustment component (340). The adjustment drive component (350) is mounted on the second support frame (120) and is connected to the adjustment component (340) for driving the upper light source component (310) and the visual detection component (330) to rise and fall.