A multi-view imaging detection apparatus

Abstract

The utility model relates to the technical field of light source detection, concretely relates to a kind of multi-view imaging detection equipment, including shell, multiple imaging modules and multiple detection lenses, shell includes top cover and cover, the side of cover is equipped with conveying entrance, and the other side is equipped with conveying exit;Multiple imaging modules are arranged in the inside of cover and are arranged around a week, and the center position of multiple imaging modules is detection site, and measured object is removed from conveying entrance to detection site detection, and is removed from conveying exit after detection;The top cover position of the top of imaging module is equipped with observation port, and detection lens is equipped in each observation port position. Multiple imaging modules can be imaged to the multiple visual angle of measured object, then detection is carried out through multiple detection lenses, and the defect of the appearance of measured object can be effectively screened out. Compared with prior art, the multi-view imaging detection equipment in the application only needs to take picture once, realizes the multi-view detection of measured object, detection process is fast and simple, more time and cost are saved.

Description

Technical Field

[0001] This utility model relates to the technical field of light source detection, specifically to a multi-view imaging detection device. Background Technology

[0002] With the continuous deepening of industrial automation and intelligence, the application of visual inspection equipment in the industrial field is becoming more and more widespread. It covers the inspection of electronic circuits, product appearance and many other aspects. It is widely welcomed by people because of its many advantages such as high inspection efficiency, stable results and low cost. More and more manual inspection methods are being replaced by machine vision inspection equipment in the market.

[0003] Existing visual inspection equipment typically uses a common surface light source and a single lens to capture images of the outer surface of the product being inspected. By adjusting the object being inspected, it can detect defects such as flaws and dents from multiple angles.

[0004] The aforementioned issues necessitate multiple image captures by visual inspection equipment when inspecting product appearance, resulting in a complex inspection process that hinders the application and promotion of visual inspection equipment. Therefore, improvements are urgently needed. Utility Model Content

[0005] The purpose of this invention is to provide a multi-view imaging detection device that can detect the appearance defects of an item with a single image capture.

[0006] To achieve the above objectives, the present invention provides a multi-view imaging detection device, comprising a housing, multiple imaging modules, and multiple detection lenses. The housing includes a top cover and an outer cover. One side of the outer cover has a conveying inlet, and the other side has a conveying outlet. The multiple imaging modules are arranged inside the outer cover and surround it. The center position of the multiple imaging modules is a detection position. The object to be tested is moved from the conveying inlet to the detection position for detection, and after detection, it is moved out from the conveying outlet. Each top cover of the imaging module has an observation port, and each observation port is equipped with a detection lens.

[0007] Furthermore, there are four imaging modules, which are arranged inside the outer cover and around it, with each pair of adjacent imaging modules being equally spaced. Furthermore, the transmission inlet is located on the outer cover sidewall between two adjacent imaging modules, and the transmission outlet is located on the outer cover sidewall between another two adjacent imaging modules. Furthermore, the imaging module includes a support frame, a beam splitter, and a light source. The support frame is fixed inside the outer cover, and both the beam splitter and the light source are fixed on the support frame. The beam splitter is positioned closer to the detection position than the light source. Furthermore, the support frame includes a base plate and two side plates, the two side plates are fixed on opposite sides of the base plate, the beam splitter is mounted on the two side plates, one side of the two side plates forms a mounting position, and the other side forms a light-transmitting opening, the mounting position is equipped with the light source, the light-transmitting opening faces the detection position, and the beam splitter is located between the light-transmitting opening and the light source. Furthermore, each of the two side plates has an insertion interface on its sidewall, and the two insertion interfaces are arranged opposite each other, with the beam splitter inserted into the two insertion interfaces. Furthermore, a locking block is provided on the outer wall of the connector, the locking block abuts against the beam splitter and confines the beam splitter within the connector.

[0008] Furthermore, the light source includes a power line, which is disposed near the outer side of the light source. Furthermore, the beam splitter is tilted on the support frame so that the object under test is projected onto the observation port. Furthermore, the multi-view imaging detection device also includes a conveyor belt assembly that passes through the conveyor inlet and the conveyor outlet, and the conveyor belt assembly sequentially conveys multiple objects to be tested to the detection position.

[0009] The beneficial effects of this utility model are as follows: 1. Multiple imaging modules are located inside the outer casing and arranged around the perimeter. The center of the multiple imaging modules is the detection position. The object to be tested is moved from the conveying inlet to the detection position for inspection. The multiple imaging modules can image the object from multiple perspectives, and then the object is directly inspected through multiple inspection lenses, which can effectively screen out defects on the appearance surface of the object. Compared with the prior art, the multi-view imaging inspection device in this application only requires one image acquisition to realize multi-view inspection of the object to be tested, making the inspection process quick and simple, and saving more time and costs.

[0010] 2. The imaging module includes a support frame, a beam splitter, and a light source. The support frame is fixed inside the outer cover, and the beam splitter and the light source are both fixed on the support frame. The beam splitter is set closer to the detection position than the light source. The light source can illuminate the object being tested, and the beam splitter changes the light path so that the detection image can be directly mapped onto the observation port. The image is then focused through the detection lens to achieve image acquisition and detection.

[0011] 3. The side panels are equipped with insertion interfaces on their side walls, with two insertion interfaces facing each other. The beam splitter is inserted into the two insertion interfaces, facilitating quick installation of the beam splitter. A locking block is provided on the outer side wall of the insertion interface. After the beam splitter is installed, the locking block is installed, which abuts against the beam splitter and confines it within the insertion interface. Attached Figure Description

[0012] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of a multi-view imaging detection device provided in an embodiment of the present utility model; Figure 2 A schematic diagram of the overall structure of a multi-view imaging detection device provided in an embodiment of this utility model from another perspective; Figure 3 A schematic diagram of the overall bottom structure of a multi-view imaging detection device provided in this embodiment of the present invention; Figure 4 This is an exploded structural diagram of a multi-view imaging detection device provided in an embodiment of the present invention.

[0014] Explanation of reference numerals in the attached figures: 1. Housing; 11. Top cover; 12. Outer cover; 13. Conveyor inlet; 14. Conveyor outlet; 15. Observation port; 2. Imaging module; 21. Detection position; 22. Support frame; 221. Base plate; 222. Side plate; 223. Mounting position; 224. Light transmission port; 225. Plug-in interface; 226. Locking block; 23. Beam splitter; 24. Light source; 241. Power cord; 3. Detection lens; 4. Measured object. Detailed Implementation

[0015] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0016] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0019] Reference Figures 1 to 4 As an embodiment of the present invention, a multi-view imaging detection device includes a housing 1, multiple imaging modules 2 and multiple detection lenses 3. The housing 1 includes a top cover 11 and an outer cover 12. One side of the outer cover 12 is provided with a conveying inlet 13 and the other side is provided with a conveying outlet 14. Multiple imaging modules 2 are arranged inside the outer cover 12 and are arranged around it. The center position of the multiple imaging modules 2 is a detection position 21. The object to be tested 4 is moved from the conveying inlet 13 to the detection position 21 for detection, and after detection, it is moved out from the conveying outlet 14. The top cover 11 of the imaging modules 2 is provided with an observation port 15, and each observation port 15 is provided with a detection lens 3.

[0020] Multiple imaging modules 2 are located inside the outer casing 12 and arranged around it. The center of the multiple imaging modules 2 is the detection position 21. The object under test 4 is moved from the conveying inlet 13 to the detection position 21 for detection. The multiple imaging modules 2 can image the object under test 4 from multiple perspectives, and then directly detect it through multiple detection lenses 3, which can effectively screen out defects on the appearance surface of the object under test 4. Compared with the prior art, the multi-view imaging detection device in this application only needs to acquire an image once to realize multi-view detection of the object under test 4, and the detection process is fast and simple, saving more time and costs.

[0021] Specifically, in this embodiment, the housing 1 is arranged in a columnar structure, and the outer cover 12 surrounds the edge of the top cover 11. There are four imaging modules 2, arranged inside the outer cover 12 and surrounding it. Each pair of adjacent imaging modules 2 is evenly spaced, and the center of the four imaging modules 2 forms a detection position 21. A conveying inlet 13 is located on the side wall of the outer cover 12 between two adjacent imaging modules 2, and a conveying outlet 14 is located on the side wall of the outer cover 12 between another pair of adjacent imaging modules 2. The conveying inlet 13 and the conveying outlet 14 are arranged opposite each other and on the same straight line, facilitating the movement of the object 4 into and out of the device. The multi-view imaging detection device also includes a conveyor belt assembly that passes through the conveying inlet 13 and the conveying outlet 14. The objects 4 are arranged on the conveyor belt assembly, which sequentially conveys multiple objects 4 to the detection position 21, enabling sequential detection of the objects 4 and improving detection efficiency.

[0022] In other embodiments, the conveyor belt assembly can be replaced by a transfer robot arm equipped with grippers. The grippers hold the object 4 to be tested and then transfer it to the detection station 21 for testing. The transfer robot arm can be configured in two sets: one set places the object 4 from the conveyor inlet 13 to the detection station 21 for testing, and the other set removes the tested object 4 from the conveyor outlet 14. Existing three-axis robot arms can be used for the transfer robot arm, and therefore will not be described in detail.

[0023] Furthermore, the imaging module 2 includes a support frame 22, a beam splitter 23, and a light source 24. The support frame 22 is fixed inside the outer casing 12, and both the beam splitter 23 and the light source 24 are fixed on the support frame 22. The beam splitter 23 is positioned closer to the detection position 21 than the light source 24. The light source 24 illuminates the object 4 under test, and the beam splitter 23 changes the optical path, allowing the detection image to be directly projected onto the observation port 15. After focusing by the detection lens 3, image acquisition and detection are achieved.

[0024] Specifically, the support frame 22 includes a base plate 221 and two side plates 222. The two side plates 222 are fixed to opposite sides of the base plate 221. A beam splitter 23 is mounted on the two side plates 222. One side of the two side plates 222 forms a mounting position 223, and the other side forms a light-transmitting opening 224. A light source 24 is mounted on the mounting position 223. The light-transmitting opening 224 faces the detection position 21. The beam splitter 23 is located between the light-transmitting opening 224 and the light source 24. In this embodiment, the beam splitter 23 is inclined on the support frame 22, so that the image of the object under test 4 is projected onto the observation port 15, which facilitates the observation and detection by the detection lens 3. The detection lens 3 can adjust its focus to achieve image acquisition and detection.

[0025] To further facilitate the installation of the beam splitter 23, insertion interfaces 225 are provided on the side walls of both side plates 222. The two insertion interfaces 225 are positioned opposite each other, and the beam splitter 23 is inserted into the two insertion interfaces 225. The beam splitter 23 can be inserted from the insertion port on either side plate 222 during installation. The thickness of the insertion interface 225 is slightly greater than the thickness of the beam splitter 23 to ensure proper insertion and installation, while also providing a limiting and fixing effect for the beam splitter 23. A locking block 226 is provided on the outer wall of the insertion interface 225, which abuts against the beam splitter 23 and confines it within the insertion interface 225. Threaded holes are pre-drilled in the side walls of the side plates 222, and the locking block 226 is fixed in place by bolts. Before installing the beam splitter 23, a locking block 226 can be pre-installed on one of the side plates 222. Then, the beam splitter 23 is inserted into the insertion interface 225 on the other side plate 222. After the beam splitter 23 is installed, the two locking blocks 226 are locked and fixed respectively.

[0026] In other embodiments, the locking block 226 can also be installed by means of snap-fit ​​or magnetic fixation to achieve the effect of limiting the installation of the beam splitter 23.

[0027] In other embodiments, an insertion interface 225 may be provided on only one side plate 222, and a limiting groove may be provided on the other side plate 222. After the beam splitter 23 is inserted from the insertion port on one side, it abuts against the limiting groove of the other side plate 222, and the installation of the beam splitter 23 is completed. Then the locking block 226 can be installed.

[0028] Furthermore, the light source 24 also includes a power line 241, which is located close to the outside of the light source 24. In this case, the power line 241 will not affect the illumination of the light source 24, nor will it affect the imaging of the beam splitter 23.

[0029] In this embodiment, multiple imaging modules 2 are disposed inside the outer casing 12 and arranged around it. The center position of the multiple imaging modules 2 is the detection position 21. The object under test 4 is moved from the conveying inlet 13 to the detection position 21 for detection. The multiple imaging modules 2 can image the object under test 4 from multiple perspectives, and then directly detect it through multiple detection lenses 3, which can effectively screen out defects on the appearance surface of the object under test 4. Compared with the prior art, the multi-view imaging detection device in this application only needs to acquire an image once to realize multi-view detection of the object under test 4, and the detection process is quick and simple, saving more time and costs.

[0030] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A multi-view imaging detection device, characterized in that, include: The housing (1) includes a top cover (11) and an outer cover (12), wherein the outer cover (12) has a conveying inlet (13) on one side and a conveying outlet (14) on the other side; Multiple imaging modules (2) are arranged inside the outer cover (12) and around the perimeter. The center position of the multiple imaging modules (2) is the detection position (21). The object to be tested (4) is moved from the transfer inlet (13) to the detection position (21) for detection, and then moved out from the transfer outlet (14) after detection. Multiple detection lenses (3) are provided, and each of the top cover (11) positions of the imaging module (2) is provided with an observation port (15), and each of the observation ports (15) positions is provided with a detection lens (3).

2. The multi-view imaging detection device as described in claim 1, characterized in that, There are four imaging modules (2), which are located inside the outer cover (12) and arranged around it. Each pair of adjacent imaging modules (2) are distributed at equal intervals.

3. The multi-view imaging detection device as described in claim 2, characterized in that, The transmission inlet (13) is located on the side wall of the outer casing (12) between two adjacent imaging modules (2), and the transmission outlet (14) is located on the side wall of the outer casing (12) between another two adjacent imaging modules (2).

4. The multi-view imaging detection device as described in claim 1, characterized in that, The imaging module (2) includes a support frame (22), a beam splitter (23) and a light source (24). The support frame (22) is fixed inside the outer cover (12). The beam splitter (23) and the light source (24) are both fixed on the support frame (22). The beam splitter (23) is positioned closer to the detection position (21) than the light source (24).

5. The multi-view imaging detection device as described in claim 4, characterized in that, The support frame (22) includes a base plate (221) and two side plates (222). The two side plates (222) are fixed on opposite sides of the base plate (221). The beam splitter (23) is mounted on the two side plates (222). One side of the two side plates (222) forms a mounting position (223), and the other side forms a light-transmitting opening (224). The mounting position (223) is equipped with the light source (24). The light-transmitting opening (224) faces the detection position (21). The beam splitter (23) is located between the light-transmitting opening (224) and the light source (24).

6. The multi-view imaging detection device as described in claim 5, characterized in that, Both side panels (222) have insertion interfaces (225) on their side walls. The two insertion interfaces (225) are arranged opposite each other, and the beam splitter (23) is inserted into the two insertion interfaces (225).

7. The multi-view imaging detection device as described in claim 6, characterized in that, The outer wall of the connector (225) is provided with a locking block (226), which abuts against the beam splitter (23) and confines the beam splitter (23) within the connector (225).

8. The multi-view imaging detection device as described in claim 5, characterized in that, The light source (24) includes a power line (241) which is disposed near the outside of the light source (24).

9. The multi-view imaging detection device as described in claim 4, characterized in that, The beam splitter (23) is tilted on the support frame (22) so that the image of the object under test (4) is projected onto the observation port (15).

10. The multi-view imaging detection device as described in claim 1, characterized in that, It also includes a conveyor belt assembly that passes through the conveyor inlet (13) and the conveyor outlet (14) and conveys multiple test objects (4) sequentially to the detection position (21).

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