A multi-channel binocular detection module

Abstract

The utility model discloses a kind of multi-channel binocular detection module, the multi-channel binocular detection module includes: substrate, two detection camera modules and light splitting component, wherein, two detection camera modules are spaced apart on substrate, and the image taking port of two detection camera modules is towards same;Light splitting component is installed on substrate, light splitting component has one light inlet and two light outlets, light inlet is located above the object to be detected, two light outlets are spaced apart and correspond to the image taking port of two detection camera modules one by one, light inlet is set apart from two light outlets, light splitting component can simultaneously project the image of the object to be measured located below light inlet to two light outlets.Such setting, image is obtained from single light inlet, then it is projected in two light outlets from two different light paths respectively, to allow the synchronous detection of multiple characteristics on single station, to avoid the need of multi-station series detection, reduce equipment redundancy and production line length, improve detection efficiency.

Description

Technical Field

[0001] This utility model relates to the field of detection technology, and in particular to a multi-channel binocular detection module. Background Technology

[0002] In the field of industrial inspection, especially for the multi-feature inspection of precision parts, traditional inspection systems usually adopt a design scheme of single camera and single optical path. This scheme can only acquire image information of a single angle or a single feature of the object to be inspected, such as only detecting size or only detecting surface scratches. In order to achieve comprehensive inspection of multiple features of the product, multiple single-camera inspection stations need to be arranged in series, with each station responsible for different inspection tasks. This multi-station series inspection method leads to redundancy in the inspection equipment structure, increased production line length, and occupies a large space.

[0003] In addition, multi-station inspection requires multiple positioning and transfer of the object to be inspected, which significantly extends the inspection time of a single product and reduces inspection efficiency. Moreover, the imaging parameters of different stations, such as brightness and focal length, need to be calibrated independently, which makes data alignment difficult, easily introduces inspection errors, and affects inspection accuracy and consistency. Therefore, improvements are urgently needed. Utility Model Content

[0004] The main purpose of this invention is to propose a multi-channel binocular detection module to solve the problem that detection systems in related technologies cannot simultaneously detect the object under test at one workstation.

[0005] To achieve the above objectives, this utility model proposes a multi-channel binocular detection module, which includes: substrate; Two detection camera modules are arranged at intervals on the substrate, and the image capture ports of the two detection camera modules face the same direction. A beam splitter assembly is mounted on the substrate. The beam splitter assembly has one light inlet and two light outlets. The light inlet is located above the object to be tested. The two light outlets are spaced apart and correspond one-to-one with the image capture ports of the two detection camera modules. The light inlet and the two light outlets are arranged opposite to each other. The beam splitter assembly can simultaneously project the image of the object to be tested located below the light inlet onto the two light outlets.

[0006] In some embodiments, the beam splitting assembly includes a housing, a beam splitting prism, and a reflector. The housing has a mounting cavity, and the beam splitting prism and the reflector are mounted in the mounting cavity at a distance. The surface of the housing is provided with an input port and two output ports communicating with the mounting cavity. One of the output ports is coaxially arranged with the input port. The beam splitting prism is located between the input port and one of the output ports. The reflector is located at the other output port, and the reflector reflects the image projected by the beam splitting prism to the other output port for projection.

[0007] In some embodiments, the multi-channel binocular detection module further includes a light source mounted on the substrate, the light source illuminating the object to be detected.

[0008] In some embodiments, the light source is arranged in a ring structure, and the light inlet is located inside the light source.

[0009] In some embodiments, the substrate is provided with two guide rails, which are arranged in parallel. The extending direction of the two guide rails is the same as the image projection direction of the detection camera module, and the two detection camera modules are slidably mounted on the corresponding guide rails.

[0010] In some embodiments, the detection camera module includes a mounting base, a camera module, and a fixing device. The camera module is mounted on the mounting base, the guide rail is a guide groove provided on the substrate, the mounting base is provided with a protruding rib that cooperates with the guide groove, and the fixing device is connected to the substrate and is used to fix the camera module relatively on the substrate.

[0011] In some embodiments, the fixing device includes a fixing base and a clamping base, one end of the fixing base is connected to the substrate, and the other end of the fixing base is connected to the clamping base and together clamps the camera module.

[0012] In some embodiments, the cavity wall of the mounting cavity is coated with diffuse white paint.

[0013] The beneficial effects of this utility model's technical solution are as follows: This utility model's multi-channel binocular inspection module sets two inspection camera modules and a beam splitter on a substrate. The beam splitter can simultaneously project the image of the object under test located below its light inlet onto two light outlets, where it is captured by the two inspection camera modules arranged at intervals. This configuration enables the image to be acquired from a single light inlet and then projected from two different light paths onto two light outlets, thus allowing multiple features to be detected simultaneously at a single workstation. This avoids the need for multi-workstation serial inspection, reduces equipment redundancy and production line length, and improves inspection efficiency. At the same time, the beam splitter allows for optical path multiplexing, which reduces costs and shrinks the inspection space required. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the multi-channel binocular detection module according to an embodiment of the present invention; Figure 2 This is a structural schematic diagram of the multi-channel binocular detection module from another perspective in an embodiment of this utility model; Figure 3 This is a schematic diagram of the image acquisition path of the multi-channel binocular detection module according to an embodiment of the present invention; Figure 4 for Figure 1 A schematic diagram of the internal structure of the mid-wave splitter.

[0015] Explanation of icon numbers: 100. Substrate; 110. Guide rail; 200. Camera detection module; 210. Mounting base; 211. Rib; 220. Camera module; 230. Fixing device; 231. Fixing base; 232. Card slot; 300. Beam splitter assembly; 310. Housing; 311. Light inlet; 312. Light outlet; 313. Mounting cavity; 320. Beam splitter prism; 330. Reflector; 400. Light source component. Detailed Implementation

[0016] The solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model. In addition, the descriptions involving "first," "second," etc., in this utility model 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.

[0017] To address the technical deficiencies in related technologies, this utility model provides a multi-channel binocular detection module. Please refer to [link / reference]. Figures 1 to 3The multi-channel binocular detection module includes a substrate 100, two detection camera modules 200, and a beam splitter 300. The two detection camera modules 200 are spaced apart on the substrate 100, and their image-capturing ports face the same direction. The substrate 100 can be made of plastic or metal, and this is not limited thereto. It should be noted that the substrate 100 is used to mount the two detection camera modules 200 and the beam splitter 300. The substrate 100 has an upper side and a lower side arranged vertically. In this embodiment, the two detection camera modules 200 are located on the upper side of the substrate 100, and the beam splitter 300 is located on the lower side of the substrate 100. This facilitates the two detection camera modules 200 acquiring images of the object under test located below the beam splitter 300 through the beam splitter 300.

[0018] Specifically, the beam splitter 300 is mounted on the substrate 100. The beam splitter 300 has one light inlet 311 and two light outlets 312. The light inlet 311 is located above the object to be detected. The two light outlets 312 are spaced apart and correspond one-to-one with the image capture ports of the two detection camera modules 200. The light inlet 311 and the two light outlets 312 are arranged opposite to each other. The beam splitter 300 can simultaneously project the image of the object to be detected located below the light inlet 311 onto the two light outlets 312. The shape of the light inlet 311 and the two light outlets 312 can be circular, square, or other shapes, and is not limited here.

[0019] Through the above technical solution, the multi-channel binocular detection module of this utility model sets two detection camera modules 200 and a beam splitter 300 on the substrate 100. The beam splitter 300 can simultaneously project the image of the object to be tested located below its light inlet 311 onto two light outlets 312, where it is captured by the two detection camera modules 200 arranged at intervals. In this way, the image is acquired from a single light inlet 311 and then projected from two different light paths onto two light outlets 312, thereby allowing multiple features to be detected simultaneously at a single workstation. This avoids the need for multi-workstation serial detection, reduces equipment redundancy and production line length, and improves detection efficiency. At the same time, the beam splitter 300 can reuse the light path, which can reduce costs and reduce the space occupied by the detection.

[0020] Furthermore, in this embodiment, please refer to... Figure 1 and Figure 4The beam splitter assembly 300 includes a housing 310, a beam splitter 320, and a reflector 330. The housing 310 has a mounting cavity 313. The beam splitter 320 and the reflector 330 are mounted in the mounting cavity 313 at intervals. The surface of the housing 310 is provided with an inlet port 311 and two outlet ports 312 communicating with the mounting cavity 313. One outlet port 312 is coaxially arranged with the inlet port 311. The beam splitter 320 is located between the inlet port 311 and one of the outlet ports 312. The reflector 330 is located at the other outlet port 312, and the reflector 330 reflects the image projected by the beam splitter 320 to the other outlet port 312 for projection. The beam splitter 320 can transmit and reflect an image of the object under test located below the inlet port 311. The transmitted image is emitted through the outlet port 312, which is coaxially arranged with the inlet port 311, and the reflected image is emitted from the other outlet port 312 after passing through the reflector. By using the beam splitter 320 and reflector 330, the optical path is effectively divided and redirected, ensuring that the two camera modules can acquire images from the two light output ports 312, thus enabling the detection function of simultaneously acquiring images of the object under test at the same workstation. Furthermore, the beam splitter 320 provides the transmission optical path, and the reflector 330 provides the reflection optical path, ensuring that the two optical paths do not interfere with each other and resulting in high image quality.

[0021] To ensure clear images captured by the two detection camera modules 200, in this embodiment, the multi-channel binocular detection module also includes a light source 400, which is mounted on the substrate 100 and illuminates the object to be detected. This ensures that the two camera modules image under the same lighting conditions, guaranteeing clear images, while also reducing detection errors caused by differences in illumination and improving detection consistency.

[0022] In addition, in this embodiment, the light source 400 is arranged in a ring structure, and the light inlet 311 is located inside the light source 400. The ring structure of the light source 400 can reduce shadows and reflections, so that the object to be inspected located below the light inlet 311 can be surrounded by the light from the ring structure of the light source 400, making the surface features of the object to be inspected clearer, which is especially suitable for surface defect detection, such as scratches or dents.

[0023] To enable the detection camera module 200 to adapt to the size of different objects being detected, in some embodiments, the substrate 100 is provided with two guide rails 110. The two guide rails 110 are arranged in parallel, and their extending direction is the same as the image projection direction of the detection camera module 200. The two detection camera modules 200 are slidably mounted on their respective guide rails 110. By setting the guide rails 110, the relative position of the two detection camera modules 200 can be adjusted, thereby adapting to objects of different sizes and improving the flexibility and applicability of the detection camera module 200.

[0024] Furthermore, the detection camera module 200 includes a mounting base 210, a camera module 220, and a fixing device 230. The camera module 220 is mounted on the mounting base 210. The guide rail 110 is a guide groove provided on the substrate 100. The mounting base 210 is provided with a protruding rib 211 that mates with the guide groove. The fixing device 230 is connected to the substrate 100 and is used to fix the camera module 220 relatively on the substrate 100. This makes the installation and adjustment of the camera module 220 more convenient. By matching the guide groove with the protruding rib 211, the mounting base 210 can slide. After the appropriate image acquisition distance between the camera module 220 and the object to be detected is determined, the fixing device 230 is used to fix the camera module 220 relatively on the substrate 100, which can ensure the stable fixation of the camera module on the substrate 100, prevent movement during the detection process, and improve the detection accuracy.

[0025] In this embodiment, the fixing device 230 includes a fixing base 231 and a clamping base 232. One end of the fixing base 231 is connected to the substrate 100, and the other end of the fixing base 231 is connected to the clamping base 232, together clamping the camera module 220. Through the specific clamping structure of the fixing base 231 and the clamping base 232, the camera module 220 is more securely fixed and easier to operate, simplifying the assembly and maintenance process. The connection method between the clamping base 232 and the fixing base 231 can be a snap-fit ​​connection, a screw-locking connection, or other detachable connection methods; no limitation is made here.

[0026] In some embodiments, the cavity wall of the mounting cavity 313 is coated with diffuse white paint. By coating the mounting cavity 313 of the housing 310 with diffuse white paint, stray light and reflection in the optical path can be reduced, improving the contrast and clarity of the image and further enhancing the detection accuracy.

[0027] The above description is only a part or preferred embodiment of this utility model. Neither the text nor the drawings should limit the scope of protection of this utility model. All equivalent structural transformations made using the content of this utility model specification and drawings under the overall concept of this utility model, or direct / indirect applications in other related technical fields, are included within the scope of protection of this utility model.

Claims

1. A multi-channel binocular detection module, characterized in that, The multi-channel binocular detection module includes: substrate(100); Two detection camera modules (200) are arranged at intervals on the substrate (100), and the image capture ports of the two detection camera modules (200) face the same direction. A beam splitter (300) is mounted on the substrate (100). The beam splitter (300) has one light inlet (311) and two light outlets (312). The light inlet (311) is located above the object to be tested. The two light outlets (312) are spaced apart and correspond one-to-one with the image capture ports of the two detection camera modules (200). The light inlet (311) and the two light outlets (312) are arranged opposite to each other. The beam splitter (300) can simultaneously project the image of the object to be tested located below the light inlet (311) onto the two light outlets (312).

2. The multi-channel binocular detection module according to claim 1, characterized in that, The beam splitting assembly (300) includes a housing (310), a beam splitting prism (320), and a reflector (330). The housing (310) has a mounting cavity (313). The beam splitting prism (320) and the reflector (330) are installed in the mounting cavity (313) at a distance. The surface of the housing (310) is provided with an inlet port (311) and two outlet ports (312) communicating with the mounting cavity (313). One outlet port (312) is coaxially arranged with the inlet port (311). The beam splitting prism (320) is located between the inlet port (311) and one of the outlet ports (312). The reflector (330) is located at the other outlet port (312), and the reflector (330) reflects the image projected by the beam splitting prism (320) to the other outlet port (312) for projection.

3. The multi-channel binocular detection module according to claim 1, characterized in that, The multi-channel binocular detection module also includes a light source (400), which is mounted on the substrate (100) and the light source (400) illuminates the object to be detected.

4. The multi-channel binocular detection module according to claim 3, characterized in that, The light source (400) is arranged in a ring structure, and the light inlet (311) is located inside the light source (400).

5. The multi-channel binocular detection module according to claim 1, characterized in that, The substrate (100) is provided with two guide rails (110), which are arranged in parallel. The extension direction of the two guide rails (110) is the same as the image projection direction of the detection camera module (200). The two detection camera modules (200) are slidably mounted on the corresponding guide rails (110).

6. The multi-channel binocular detection module according to claim 5, characterized in that, The detection camera module (200) includes a mounting base (210), a camera module (220), and a fixing device (230). The camera module (220) is mounted on the mounting base (210). The guide rail (110) is a guide groove provided on the substrate (100). The mounting base (210) is provided with a rib (211) that cooperates with the guide groove. The fixing device (230) is connected to the substrate (100) and is used to fix the camera module (220) relatively on the substrate (100).

7. The multi-channel binocular detection module according to claim 6, characterized in that, The fixing device (230) includes a fixing base (231) and a clamping base (232). One end of the fixing base (231) is connected to the substrate (100), and the other end of the fixing base (231) is connected to the clamping base (232) and together they clamp the camera module (220).

8. The multi-channel binocular detection module according to claim 2, characterized in that, The cavity wall of the mounting cavity (313) is coated with diffuse white paint.

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