Substrate glass edge detection device
By combining cameras and light sources arranged in a straight line on opposite sides, the problems of large space occupation and low efficiency of substrate glass edge detection devices are solved, and efficient and accurate edge detection is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN CBPM-KEXIN BANKING TECH CO LTD
- Filing Date
- 2024-12-31
- Publication Date
- 2026-05-08
AI Technical Summary
Existing substrate glass edge detection devices occupy a large space, have many components, and are costly, resulting in low detection efficiency.
By employing a first and second camera set in a non-linear configuration, combined with a reflector, a planar light source, and a curved light source, and using a controller to precisely control the shooting time and light source brightness, efficient and accurate detection is achieved at the intersection of the curved surface and the planar surface.
Efficient and accurate edge detection of substrate glass was achieved within a limited space, reducing blind spots and improving the accuracy and reliability of the detection.
Smart Images
Figure CN224216590U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of glass inspection technology, and in particular to a substrate glass edge inspection device. Background Technology
[0002] During the substrate glass manufacturing process, the glass edges are ground into a semi-circle. It is necessary to inspect the quality of the entire arc surface and whether there are any defects at the junction of the arc and the plane to prevent defective glass from flowing into subsequent processes.
[0003] However, most current inspections are carried out by direct shooting from multiple cameras and angles. This method has the problems of large space occupation, many components, and high cost, resulting in low work efficiency. Utility Model Content
[0004] The technical problem to be solved by this utility model embodiment is to provide a substrate glass edge detection device so that the detection device can ensure accurate and efficient detection even in a limited space.
[0005] To address the aforementioned technical problems, this utility model provides a substrate glass edge detection device for detecting the arc surface of the substrate glass and the junction of the arc surface and the plane. The device includes: a first camera and a second camera located on the same side of the substrate glass with corresponding axes of skew lines; a reflector located on the other side of the substrate glass providing a mirror image for the second camera; a first planar light source and a second planar light source located on both sides of the substrate glass, obliquely illuminating the first and second junctions of the substrate glass, respectively, providing planar light sources for the first and second cameras; a first arc surface light source and a second arc surface light source facing and obliquely illuminating the arc surface of the substrate glass from both sides, providing arc surface light sources for the first and second cameras; and a controller connecting and controlling the first camera, the second camera, the first planar light source, the second planar light source, the first arc surface light source, and the second arc surface light source.
[0006] Furthermore, the angle between the axis of the first camera and the plane of the substrate glass is 30° to 50°, and the angle between the line of the axis of the second camera after reflection by the mirror and the plane of the substrate glass is also 30° to 50°.
[0007] Furthermore, the device also includes a housing, on the bottom and sides of which are perforated stepped grooves, on which a cover plate is fitted and installed, and on the inside of the cover plate is a circuit board.
[0008] Furthermore, a light source base is fixedly installed on the side of the housing. The light source base includes a horizontal plate and a vertical plate protruding from the middle of the horizontal plate. The horizontal plate has an installation part and a shooting part on both sides of the vertical plate, respectively. The shooting part has a first window and a second window for light transmission to the first camera and the second camera, respectively. A transparent dustproof film is provided in the first window and the second window, respectively.
[0009] Furthermore, a fixing block is suspended and fixed above the imaging unit corresponding to the side position of the vertical plate. A first adjusting block is fixed on the outer side of the fixing block and can be adjusted and fixed through an oblong hole. A first clamping roller is installed at the end of the first adjusting block. A second adjusting block is also fixed on the outer side of the imaging unit and can be adjusted and fixed through an oblong hole. A second clamping roller is installed at the end of the second adjusting block. The first clamping roller and the second clamping roller match to form a rolling transport channel for the substrate glass.
[0010] Furthermore, a first planar light source is fixedly mounted on the outer side of the shooting unit, and a second planar light source is suspended and fixed above the shooting unit at the position corresponding to the side of the vertical plate. A wiring groove is opened on the back of the first and second planar light sources, and a groove cover plate is matched and fixed on the wiring groove.
[0011] Furthermore, a first arc-shaped light source and a second arc-shaped light source are respectively fixed on both sides of the shooting unit. The first arc-shaped light source and the second arc-shaped light source each include a light source base fixed to the shooting unit through a vertical screw hole, a light-emitting plate embedded in the hollow part in the middle of the light source base, and a spherical crown-shaped light cover covering the outside of the light-emitting plate.
[0012] Furthermore, a first camera base and a second camera base are fixed on the inner sidewall of the housing for mounting the first camera and the second camera, respectively. The first camera base has an I-shaped cross-section, and the second camera base is a plate. The height of the first camera base is greater than that of the second camera base. A first sliding groove is provided on the first camera base, and a first slider is slidably and adjustablely fixed in the first sliding groove. One end of the first slider is fixed to the first camera, and the other end is provided with a first waist-shaped hole. The second camera base includes two guide plates arranged in parallel to form a second sliding groove, and a second slider is slidably and adjustablely fixed in the first sliding groove. One end of the second slider is fixed to the second camera, and the other end is provided with a second waist-shaped hole.
[0013] Furthermore, a first through hole is provided on the side wall of the housing, and a mounting plate is fixed to the outside of the first through hole by screws. A hub tube is inserted in the second through hole in the middle of the mounting plate.
[0014] Furthermore, a first U-shaped groove is provided on the side wall of the housing, and a U-shaped block is fixed to the outside of the first U-shaped groove by screws. A pressure plate is fixed to the U-shaped block by bolts, and the pressure plate has a pressure block protruding at the opening position of the U-shaped block.
[0015] This utility model discloses a substrate glass edge detection device, comprising: a first camera and a second camera located on the same side of the substrate glass with corresponding axes of skew lines; a reflector located on the other side of the substrate glass to provide a mirror image for the second camera; a first planar light source and a second planar light source located on both sides of the substrate glass, obliquely illuminating a first and a second junction of the substrate glass, respectively, providing planar light sources for the first and second cameras; and a first arc-shaped light source and a second arc-shaped light source facing and obliquely illuminating the arc-shaped surfaces of the substrate glass from both sides, providing arc-shaped light sources for the first and second cameras. By staggering the two cameras and integrating them within a housing, the cameras can simultaneously capture details at the junction of the arc-shaped and planar surfaces, while also reducing the space occupied by the device, ensuring efficient and accurate edge detection within a limited space. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of the detection device according to an embodiment of the present invention.
[0017] Figure 2 This is a schematic diagram of the detection device from another angle according to an embodiment of the present invention.
[0018] Figure 3 This is a schematic diagram of the internal structure of the shell in an embodiment of this utility model.
[0019] Figure 4 This is a schematic diagram of the shell structure from another angle according to an embodiment of the present invention.
[0020] Figure 5 This is an exploded structural diagram of the detection device according to an embodiment of the present invention.
[0021] Figure 6 This is a schematic diagram of the structure of the light source base and camera in an embodiment of this utility model.
[0022] Figure 7 This is a schematic diagram of the structure of the second planar light source according to an embodiment of the present invention.
[0023] Figure 8 This is a schematic diagram of the imaging principle of the camera according to an embodiment of this utility model.
[0024] Explanation of icon numbers
[0025] Substrate glass 1, First camera 2, First camera base 21, First slider 211
[0026] Second camera 3, Second camera base 31, Guide plate 311, Second slider 312
[0027] Light source base 4; First planar light source 41; Second planar light source 42; First curved surface light source 43
[0028] Second curved light source 44 First window 45 Second window 46 First adjustment block 47
[0029] First clamping roller 471, second adjusting block 48, second clamping roller 481, slot cover plate 49
[0030] 5. Housing 51. Cover plate 6. Hub 7. U-shaped block Detailed Implementation
[0031] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0032] In this embodiment of the invention, directional indicators (such as up, down, left, right, front, back, etc.) are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indicators will also change accordingly.
[0033] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.
[0034] Please refer to Figures 1 to 8 This utility model discloses a substrate glass edge detection device for detecting the arc surface of a substrate glass 1 and the junction of the arc surface and the plane. The device includes: a first camera 2 and a second camera 3 located on the same side of the substrate glass 1 with corresponding axes of skew lines; a reflector located on the other side of the substrate glass 1 to provide a mirror image for the second camera 3; a first planar light source 41 and a second planar light source 42 located on both sides of the substrate glass 1, obliquely illuminating the first junction and the second junction of the substrate glass 1 respectively, providing planar light sources for the first camera 2 and the second camera 3; a first arc surface light source 43 and a second arc surface light source 44 facing and obliquely illuminating the arc surface of the substrate glass 1 from both sides respectively, providing arc surface light sources for the first camera 2 and the second camera 3; and a controller connecting and controlling the first camera 2, the second camera 3, the first planar light source 41, the second planar light source 42, the first arc surface light source 43, and the second arc surface light source 44.
[0035] Specifically, the first camera 2 and the second camera 3 are disposed inside the detection device and are arranged alternately at different angles. The first camera 2 is located to the side and rear of the second camera 3. The first camera 2 captures images of the arc surface of the substrate glass 1 at a first position and the intersection of the arc surface and the plane through the first window 45. The second camera 3 captures images of the arc surface of the substrate glass 1 at a second position opposite to the first position and the intersection of the arc surface and the plane through the second window 46. The first planar light source 41 and the second planar light source 42 are respectively disposed on the two sides of the substrate glass 1. One end of the first planar light source 41 is located on the outer side of the imaging part of the light source base 4, and the other end extends upward at an angle and illuminates the substrate glass 1 in the direction of the light source base 4. The second planar light source 42 is located above the second window 46, with one end connected to the vertical plate of the light source base 4 and the other end extending downward at an angle and illuminating the substrate glass 1 in the direction of the light source base 4. It is worth noting that a reflector 421 is installed on the second planar light source 42. The bottom of the second planar light source 42, which is connected to one end of the vertical plate of the light source base 4, is at an inclined angle to facilitate the reflector 421 reflecting the image of the substrate glass 1 to the second camera 3. Therefore, the second camera 3 is tilted at a predetermined angle towards the substrate glass 1 so that the second camera 3 can obtain a clear image. The curved light source is set on the horizontal plate corresponding to the shooting part of the light source base 4, and a space for accommodating the curved light source is opened in the middle. The first curved light source 43 and the second curved light source 44 are symmetrically arranged on both sides of the first window 45 and the second window 46, respectively, to provide light to the first camera 2 and the second camera 3 at corresponding positions to illuminate the curved surface of the substrate glass 1. The first curved light source 43 and the second curved light source 44 are oblique prisms, and a light-emitting sphere is embedded on the side facing the window. A controller is installed inside the housing 5 of the detection device and at the bottom of the camera. The controller achieves accurate detection of the edge of the substrate glass 1 by precisely controlling the shooting time, exposure parameters, and brightness of the planar light source and the curved light source of the first camera 2 and the second camera 3.
[0036] As one implementation method, such as Figure 8 As shown, the shooting angle of the camera forms an angle with the substrate glass 1. Specifically, the optical axis of the first camera 2 forms an angle of 30° to 50° with the corresponding plane of the substrate glass 1, and the line reflected by the mirror 421 from the corresponding axis of the second camera 3 forms an angle of 30° to 50° with the corresponding plane of the substrate glass 1 (this angle is the angle between the reflected light emitted along the axis of the second camera 3 and the corresponding plane of the substrate glass 1). The preferred angle is 40°. This symmetrical angle design of the embodiment can simultaneously capture the details of both the planar and curved surfaces of the substrate glass 1, ensuring image clarity, improving detection accuracy, effectively avoiding detection blind spots caused by a single viewing angle, further improving the overall accuracy and reliability of detection, and ensuring quality control during the production process.
[0037] In one embodiment, the detection device further includes a housing 5, on which removable cover plates 51 are respectively provided on the bottom surface and the side facing the substrate glass 1. Specifically, the bottom and side surfaces of the housing 5 each have a stepped surface for fixing the cover plate 51. The stepped surface is hollow and has multiple screw holes so that the cover plate 51 can be firmly fixed to the housing 5 with screws. A circuit board is fixedly connected to the inside of the cover plate 51, and the circuit board is fixed to the cover plate 51 with screws to ensure the stability of the circuit board inside the housing 5. The circuit board integrates a control unit, a power management module, and signal processing circuits, etc. Through the coordinated work of these modules, the device can achieve efficient operation and accurate detection.
[0038] In one embodiment, a light source base 4 is fixedly mounted on the side of the housing 5. The light source base 4 includes a horizontal plate and a vertical plate protruding from the middle of the horizontal plate. The horizontal plate has a mounting part and an imaging part on both sides of the vertical plate, respectively. The imaging part has a first window 45 and a second window 46 for transmitting light to the first camera and the second camera, respectively. A transparent dustproof film is provided in the first window 45 and the second window 46. Specifically, the imaging part of the light source base 4 is provided with a light source, a clamping roller, and two windows. The first window 45 is an obliquely opened hole, elliptical in shape with the same angle as the first camera 2. The second window 46 has a smaller tilt angle with the second camera 3, so the second window 46 is slightly tilted and is further away from the substrate glass 1 than the first window 45. In a preferred embodiment, a dustproof film is installed on the first window 45 and the second window 46 to prevent dust from entering the detection device and affecting image quality and detection accuracy. The dustproof film is made of transparent material to ensure unobstructed light transmission, and is easy to disassemble and clean, making maintenance convenient.
[0039] In one embodiment, the imaging part of the light source base 4 is suspended above the curved light source with a fixed block. The fixed block has a first adjusting block 47 on one side corresponding to the substrate glass 1. The top of the first adjusting block 47 is connected to the fixed block and has an oblong hole for adjusting the clamping gap. The end is suspended on the side of the curved light source and is connected to and installed with a first clamping roller 471. A second adjusting block 48 is fixedly connected to the side of the horizontal plate of the imaging part facing the substrate glass 1. The top of the second adjusting block 48 is connected to the fixed block and has an oblong hole for adjusting the clamping gap. The end is suspended on the side of the curved light source and is connected to and installed with a second clamping roller 481. The first clamping roller 471 and the second clamping roller 481 are arranged opposite to each other and form a channel for accommodating the roller transmission of the substrate glass 1, thereby enabling the substrate glass 1 to move smoothly during the detection process, reducing friction and vibration, and ensuring the stability and accuracy of image acquisition. The first adjusting block 47 and the second adjusting block 48 are fixed to the fixing block and the horizontal plate by screws. The position of the first adjusting block 47 or the second adjusting block 48 is adjusted through the oblong hole, thereby adjusting the relative position of the two clamping rollers to adapt to substrate glass 1 of different thicknesses, optimize the clamping force, ensure that the substrate glass 1 is placed stably, avoid errors caused by shaking during the detection process, and improve detection efficiency and accuracy.
[0040] In one implementation, the light source base 4 is also provided with a wiring groove. Specifically, the wiring groove is located on the vertical plate of the mounting part of the light source base 4. It can accommodate the power and control wires of the light source. The wiring groove has a structure that is narrow at the top and wide at the bottom, with two stepped grooves. It is closed by a matching groove cover plate 49, which is fixed with screws to hide the power and control wires. Cable replacement and maintenance can be achieved simply by removing the groove cover plate 49, improving the overall aesthetics and ease of operation of the device. Additionally, wiring grooves are provided on the back of the first planar light source 41 and the second planar light source 42. The interior of the second planar light source 42 is connected to the wiring groove on the vertical plate. Because the first and second planar light sources 41 and 42 are suspended and fixed on the light source base 4, additional slots are needed to connect to the wiring grooves. The power supply is connected to the controller via a hub 6 and finally to the light source base 4. The light source base 4 is connected to the planar light source through the vertical plate wiring groove, thus providing power to the planar light source.
[0041] In one embodiment, the first arc-shaped light source 43 and the second arc-shaped light source 44 are respectively disposed at both ends of the shooting part. The light source base of the arc-shaped light source is fixed to the shooting part by screws. The light source base also includes a light-emitting plate and a spherical crown-shaped light cover that wraps around and matches the light-emitting plate. The light source base is a prism structure with a part protruding outside the light source base 4 for easy disassembly and installation. The light-emitting plate and the spherical crown-shaped light cover are arranged in the direction of the first window and the second window respectively. The spherical crown-shaped light cover is made of high light-transmitting material to ensure uniform light distribution and improve the shooting effect.
[0042] In one implementation, the first camera 2 and the second camera 3 are fixed to the side wall of the housing 5 via camera bases. The first camera base 21 is higher than the second camera base 31, and the first camera base 21 has an I-shaped cross-section. It is located behind the second camera base 31, which is closer to the circuit board on the cover plate 51, to ensure that the camera and the camera base do not interfere with each other. The camera base and the camera shooting direction are at the same angle. A groove is provided at the end of the first camera base 21 where the first camera 2 is connected. This groove is equipped with a first slider 211. One end of the first slider 211 is a screw hole for fixing the first camera 2, and the other end is a first oblong hole for adjusting the position of the first slider 211. The first oblong hole is connected to the first camera base 21 by screws, so that the first slider 211 can be adjusted within the range of the first oblong hole, thereby precisely adjusting the shooting angle and position of the first camera 2 and ensuring the accuracy of image capture when detecting substrate glass 1 of different thicknesses. Unlike the first camera base 21, the second camera base 31 does not have a first slider 211. Instead, it uses two guide plates 311 to fix the second slider 312 to achieve the same function as the first slider 211. The second camera base 31 is directly fixed to the side wall of the housing 5. One end of the second slider 312 is fixedly connected to the second camera 3, and the other end has a second oblong hole. By adjusting the position within the range of the second oblong hole, the second slider 312 can slide within the guide plate 311 within the range of the second oblong hole, thereby driving the second camera 3 to make fine adjustments to its position within a fixed range, achieving the same effect as the first camera 2 in that the camera position can be adjusted by sliding.
[0043] In one embodiment, a first through hole is provided on the bottom surface of the housing 5. A stepped surface is provided on the outer side of the housing 5 through hole. A screw hole is also provided on the stepped surface, and a mounting plate is fixed by screws. The mounting plate is square, and the screw holes at its four corners correspond one-to-one with the screw holes on the stepped surface. A second through hole is provided in the center of the mounting plate to accommodate and fix the cable hub 6. One end of the cable hub 6 is connected to the second through hole and engaged with the stepped surface of the first through hole, thereby fixing it. The other end of the cable hub 6 extends completely outside the housing 5, making it an inverted cone structure. This facilitates centralized management of the cables inside the housing 5, simplifies the cable layout, reduces the failure rate, ensures stable signal transmission, and further improves the reliability and maintenance efficiency of the detection system.
[0044] In one implementation, a first U-shaped groove is formed on the side wall of the housing 5. A U-shaped block 7 is fixed to the outside of the first U-shaped groove by screws. A wire pressing plate is fixed to the U-shaped block 7 by bolts. The wire pressing plate has a wire pressing block protruding at the opening position of the U-shaped block 7. Specifically, a first U-shaped groove is formed on the bottom edge of the housing 5. The first U-shaped groove is connected to the outside of the housing 5 to the U-shaped block 7. The U-shaped block 7 is located on one side of the first through hole and the cover plate 51. The U-shaped block 7 has bolt holes that match the wire pressing plate. The wire pressing plate is fixed to the U-shaped block 7 by bolts. The opening position of the U-shaped block 7 and the wire pressing block protruding from the wire pressing plate form a closed wire pressing space, ensuring that the cables are neatly arranged inside the housing 5 and avoiding signal interference and wear caused by messy cables.
[0045] Working principle:
[0046] The first camera 2 and the second camera 3 take pictures at a fixed angle and a preset position on the camera base. First, the first planar light source 41 illuminates the plane of the bottom side edge of the substrate glass 1, and the first curved light source 43 simultaneously illuminates the curved surface of the substrate glass 1. The first camera 2 takes pictures of the area illuminated by the light source through the dustproof film of the first window 45, so that the first camera 2 can clearly capture the image information of the bottom edge and the curved surface of the substrate glass 1. At the same time, the second planar light source 42 illuminates the plane of the top side edge of the substrate glass 1, and the second curved light source 44 simultaneously illuminates the curved surface of the substrate glass 1. The reflector 421 on the second planar light source 42 reflects the image of the top edge and the curved surface of the substrate glass 1. The second camera 3 takes pictures of the image reflected by the reflector 421 through the dustproof film of the second window 46, ensuring that the second camera 3 also clearly captures the image information of the top edge and the curved surface of the substrate glass 1. Based on the ingenious angle design of the two cameras, the first camera 2 captures the semi-circular surface above the central axis of the arc surface and the area where the semi-circular surface intersects with the plane, while the second camera 3 mainly captures the semi-circular surface below the central axis of the arc surface and the area where the semi-circular surface intersects with the plane. The two cameras complement each other to ensure that the image information of the side edge of the substrate glass 1 is fully captured, thereby achieving high-precision detection of the substrate glass 1 at various angles.
[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A substrate glass edge detection device, used to detect the arc surface of the substrate glass (1) and the junction of the arc surface and the plane, characterized in that, include: The first camera (2) and the second camera (3) are located on the same side of the substrate glass (1) and have corresponding axes that are not in the same plane. A reflector (421) located on the other side of the substrate glass (1) provides a mirror for the second camera to capture images; Located on both sides of the substrate glass (1), the first planar light source (41) and the second planar light source (42) are obliquely directed toward the first junction and the second junction of the substrate glass (1) to provide planar light sources for the first camera (2) and the second camera (3); The first arc light source (43) and the second arc light source (44) are directed at the arc surface of the substrate glass (1) from both sides and illuminate it at an angle. A controller that connects to and controls the first camera (2), the second camera (3), the first planar light source (41), the second planar light source (42), the first curved light source (43), and the second curved light source (44).
2. The apparatus according to claim 1, characterized in that, The angle between the axis of the first camera (2) and the plane of the substrate glass (1) is 30° to 50°. The angle between the line of the axis of the second camera (3) after reflection by the mirror (421) and the plane of the substrate glass (1) is also 30° to 50°.
3. The apparatus according to claim 1, characterized in that, The device also includes a housing (5), on which hollowed-out stepped grooves are provided on the bottom and sides. A cover plate (51) is installed on the stepped grooves, and a circuit board is fixed inside the cover plate (51).
4. The apparatus according to claim 3, characterized in that, A light source base (4) is fixedly installed on the side of the housing (5). The light source base (4) includes a horizontal plate and a vertical plate protruding from the middle of the horizontal plate. The horizontal plate corresponds to the mounting part and the shooting part on both sides of the vertical plate, respectively. The shooting part has a first window (45) and a second window (46) for transmitting light to the first camera (2) and the second camera (3), respectively. The first window (45) and the second window (46) are respectively provided with transparent dustproof films.
5. The apparatus according to claim 4, characterized in that, A fixing block is suspended and fixed above the shooting unit corresponding to the side position of the vertical plate. A first adjusting block (47) is fixed on the outer side of the fixing block and can be adjusted and fixed through a waist-shaped hole. A first clamping roller (471) is installed at the end of the first adjusting block (47). A second adjusting block (48) is also fixed on the outer side of the shooting unit and can be adjusted and fixed through a waist-shaped hole. A second clamping roller (481) is installed at the end of the second adjusting block (48). The first clamping roller (471) and the second clamping roller (481) match to form a rolling conveying channel for the substrate glass (1).
6. The apparatus according to claim 4, characterized in that, A first planar light source (41) is fixed on the outer side of the shooting unit, and a second planar light source (42) is suspended and fixed above the shooting unit corresponding to the side position of the vertical plate. The back of the first planar light source (41) and the second planar light source (42) are provided with a wiring groove, and a groove cover plate (49) is matched and fixed on the wiring groove.
7. The apparatus according to claim 4, characterized in that, The two sides of the shooting unit are respectively fixed with a first arc-shaped light source (43) and a second arc-shaped light source (44). The first arc-shaped light source (43) and the second arc-shaped light source (44) each include a light source base fixed to the shooting unit through a vertical screw hole, a light-emitting plate embedded in the hollow part in the middle of the light source base, and a spherical crown-shaped light cover covering the outside of the light-emitting plate.
8. The apparatus according to claim 3, characterized in that, The inner wall of the housing (5) is fixed with a first camera base (21) and a second camera base (31) for mounting the first camera (2) and the second camera (3), respectively. The first camera base (21) has an I-shaped cross section, and the second camera base (31) is a plate. The height of the first camera base (21) is greater than that of the second camera base (31). The first camera base (21) has a first sliding groove, in which a first slider (211) is slidably and adjustablely fixed. One end of the first slider (211) is fixed to the first camera (2), and the other end has a first waist-shaped hole. The second camera base (31) includes two parallel guide pieces (311) forming a second sliding groove, and a second slider (312) slidably and adjustablely fixed in the first sliding groove. One end of the second slider (312) is fixed to the second camera (3), and the other end has a second waist-shaped hole.
9. The apparatus according to claim 3, characterized in that, A first through hole is provided on the side wall of the housing (5). A mounting plate is fixed to the outside of the first through hole by screws. A hub tube (6) is inserted in the second through hole in the middle of the mounting plate.
10. The apparatus according to claim 3, characterized in that, A first U-shaped groove is provided on the side wall of the housing (5). A U-shaped block (7) is fixed to the outside of the first U-shaped groove by screws. A pressure plate is fixed to the U-shaped block (7) by bolts. The pressure plate has a pressure block protruding at the opening position of the U-shaped block (7).