Visual inspection device
By using a conical housing and a rotation adjustment device in the vision inspection device, combined with a conical light-emitting plate and an inspection camera, the high cost problem caused by multiple light sources and multiple cameras in the prior art is solved, and efficient inspection of the outer periphery of columnar workpieces is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG AOPUTE TECH CO LTD
- Filing Date
- 2025-05-06
- Publication Date
- 2026-05-05
AI Technical Summary
Existing visual inspection devices require multiple light sources and inspection cameras when inspecting specific areas on the outer periphery of cylindrical workpieces, resulting in high costs and difficulty in cost-saving.
A conical light-emitting plate and a detection camera are installed on the inner wall of a conical shell. Combined with a rotation adjustment device, the detection camera can take pictures of the outer periphery of the workpiece by rotating the conical shell, thus reducing the number of light sources and cameras.
It enables efficient detection of specific areas on the outer periphery of cylindrical workpieces while saving costs, thus improving the flexibility and applicability of the detection.
Smart Images
Figure CN224203056U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machine vision inspection technology, and in particular to a vision inspection device. Background Technology
[0002] With the advancement of production technology, machine vision inspection devices are increasingly being used in product inspection, which can effectively detect surface defects in products.
[0003] Existing visual inspection devices typically include a light source and a camera. The light source is fixedly mounted on a frame and emits light onto a workpiece at a set position. The camera is mounted on one side of the light source and fixedly connected to the frame. This configuration is generally only suitable for inspecting the top surface of the workpiece. For cylindrical workpieces that rotate during transport due to vibration or other reasons, it cannot effectively inspect specific areas on the outer periphery of the workpiece. To inspect specific areas on the outer periphery of cylindrical workpieces, multiple light sources and multiple cameras are typically required around the inspection station, which is clearly detrimental to cost savings in production.
[0004] Therefore, it is necessary to design a visual inspection device that can perform inspection work well while saving on device costs.
[0005] The above information is provided as background information only to aid in understanding this disclosure and does not constitute an assertion or admission that any of the above content can be used as prior art relative to this disclosure. Utility Model Content
[0006] This invention provides a visual inspection device that can perform inspection work well while saving device costs.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A visual inspection device, comprising:
[0009] A conical shell, wherein a conical light-emitting plate is installed on the inner side wall of the conical shell, and the conical shell is provided with a detection through hole for facing the workpiece;
[0010] A rotary adjustment device, connected to the top of the conical shell, is used to drive the conical shell to rotate around its centerline;
[0011] A detection camera is fixedly connected to the conical housing, and the lens of the detection camera is facing the detection hole.
[0012] Optionally, at least three detection through holes are provided, and all the detection through holes are arranged in a circumferential array around the center line of the conical shell;
[0013] The conical light-emitting plate is divided into at least three fan-shaped light-emitting areas. Each fan-shaped light-emitting area is provided with a through hole facing one of the detection through holes, and the diameter of the through hole is not less than the diameter of the detection through hole.
[0014] The light emitted from two adjacent sector light-emitting areas is of different colors, and each sector light-emitting area can be opened and closed independently.
[0015] Optionally, the lens of the detection camera passes sequentially through the detection through-hole and the through-hole.
[0016] Optionally, it also includes a top plate fixedly connected to the conical shell, the top plate shielding the top opening of the conical shell;
[0017] The rotation adjustment device is fixedly connected to the top plate.
[0018] Optionally, the top plate is provided with a protrusion for positioning the conical light-emitting plate;
[0019] The cross-section of the protrusion perpendicular to the center line of the conical shell is circular.
[0020] Optionally, the protrusion is also equipped with a downward-emitting supplementary light plate.
[0021] Optionally, the conical housing is further provided with an annular support portion for supporting the conical light-emitting plate;
[0022] The annular support is located at the bottom end of the conical shell and surrounds the light outlet of the conical shell.
[0023] Optionally, the rotation adjustment device is a rotary cylinder, a rotary drive platform, or a rotary drive motor.
[0024] Optionally, the rotation adjustment device is electrically connected to the detection camera.
[0025] Optionally, the conical light-emitting plate includes a circuit board that fits against the inner wall of the conical housing and LED beads mounted on the circuit board.
[0026] Compared with the prior art, the present invention has the following beneficial effects:
[0027] The visual inspection device provided by this utility model has a conical shell placed on one side of the top of the workpiece. The conical light-emitting plate installed on the inner wall of the conical shell can effectively illuminate the top and outer peripheral side of the workpiece. The inspection camera is installed on the conical shell and can take pictures of the workpiece through the inspection through hole. In this embodiment, the rotation adjustment device can drive the entire conical shell to rotate, eliminating the need for multiple light sources and multiple inspection cameras. The inspection camera can be directly facing the outer peripheral area to be inspected through the inspection through the inspection through hole, thereby effectively detecting the specific outer peripheral area of the rotated workpiece.
[0028] This invention has other features and advantages that will be apparent from or will be set forth in detail in the accompanying drawings and the following detailed description, which together serve to explain the particular principles of this invention. Attached Figure Description
[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 these drawings without creative effort.
[0030] Figure 1 This is an exploded view of the visual inspection device provided in this embodiment of the present invention;
[0031] Figure 2 This is a front view schematic diagram of the visual inspection device provided in this embodiment of the utility model;
[0032] Figure 3 yes Figure 2 A cross-sectional view of the visual inspection device along line AA;
[0033] Figure 4 This is a three-dimensional structural diagram of the visual inspection device provided in an embodiment of the present invention.
[0034] Reference numerals: 1. Conical shell; 11. Detection through hole; 12. Annular support; 2. Conical light-emitting plate; 21. Through hole; 3. Rotation adjustment device; 4. Detection camera; 5. Top plate; 51. Protrusion. Detailed Implementation
[0035] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.
[0036] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.
[0037] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.
[0038] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.
[0039] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.
[0040] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.
[0041] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.
[0042] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.
[0043] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.
[0044] In view of the aforementioned deficiencies in existing visual inspection devices, the applicant, based on years of extensive practical experience and professional knowledge in the design and manufacture of such products, and in conjunction with the application of theoretical principles, has actively conducted research and innovation in order to create a device that can overcome the shortcomings of the existing technology and make the visual inspection device more practical. After continuous research, design, and repeated prototype production and improvement, this utility model with real practical value has finally been created.
[0045] Please refer to Figures 1 to 4 This utility model provides a visual inspection device, including a conical housing 1, a conical light-emitting plate 2, a rotation adjustment device 3, and an inspection camera 4.
[0046] A conical light-emitting plate 2 is installed on the inner wall of the conical housing 1, and the conical housing 1 is provided with a detection through hole 11 for facing the workpiece; the conical light-emitting plate 2 can be attached to the inner wall of the conical housing 1 or parallel to the inner wall of the conical housing 1.
[0047] The rotation adjustment device 3 is connected to the top of the conical housing 1 and is used to drive the conical housing 1 to rotate around the center line of the conical housing 1; the detection camera 4 is fixedly connected to the conical housing 1 and the lens of the detection camera 4 is facing the detection hole.
[0048] In the actual inspection process, the workpiece is transported to the area directly below the conical housing 1 via a conveyor belt or other conveying device. Then, the conical light-emitting plate 2 illuminates the top surface and the entire outer circumference of the workpiece. The rotating adjustment device 3 then rotates the conical housing 1, so that the inspection camera 4 faces the area to be inspected on the outer circumference of the workpiece and takes pictures for inspection. In addition, this embodiment does not require multiple light sources and multiple cameras to be set up at the same time, which can effectively save costs.
[0049] For example, when it is necessary to detect label information or surface defects in specific locations on bottle or can workpieces, the visual inspection device in this embodiment can be used.
[0050] Optionally, at least three detection through holes 11 are provided, and all detection through holes 11 are arranged in a circumferential array around the center line of the conical housing 1; the conical light-emitting plate 2 is divided into at least three fan-shaped light-emitting areas, and each fan-shaped light-emitting area has a through hole 21 facing one of the detection through holes 11, and the diameter of the through hole 21 is not less than the diameter of the detection through hole 11; the light emitted by two adjacent fan-shaped light-emitting areas is different, and each fan-shaped light-emitting area can be opened and closed independently. Preferably, the through hole 21 is located in the middle of the fan-shaped light-emitting area.
[0051] It should be noted that the label areas of many bottle and can workpieces are different colors. In this embodiment, by setting up fan-shaped light-emitting areas with different light-emitting colors, and controlling one of the fan-shaped light-emitting areas to emit light or several adjacent fan-shaped light-emitting areas to emit light together during detection, different lighting effects can be provided, which can well meet the detection needs of different types of workpieces and improve the applicability of the vision inspection device.
[0052] Optionally, the lens of the inspection camera 4 passes sequentially through the inspection through-hole 11 and the through-hole 21. In this case, the lens also positions the inspection camera 4 body, preventing the inspection camera 4 from being unable to take pictures of the workpiece through the inspection through-hole 11, thus effectively preventing the inspection camera 4 from being installed crookedly.
[0053] Optionally, it also includes a top plate 5 fixedly connected to the conical shell 1, the top plate 5 shielding the top opening of the conical shell; the rotation adjustment device 3 is fixedly connected to the top plate 5. The top plate 5 shields the top opening of the conical shell to prevent light leakage and also reduces the influence of external stray light.
[0054] Optionally, the top plate 5 has a protrusion 51 for positioning the conical light-emitting lamp plate 2; the cross-section of the protrusion 51 perpendicular to the center line of the conical shell 1 is circular. A positioning hole is formed at the top of the conical light-emitting lamp plate 2, and the positioning hole fits onto the protrusion 51 to complete the positioning, making the positioning of the conical light-emitting lamp plate 2 easier and more accurate. It should be noted that the conical light-emitting lamp plate 2 can be assembled from multiple lamp plates.
[0055] Optionally, a downward-emitting supplementary lighting plate is also installed on the protrusion 51. The supplementary lighting plate can increase the light intensity, thereby improving the detection accuracy of the inspection camera 4.
[0056] Optionally, the conical housing 1 is further provided with an annular support portion 12 for supporting the supplementary lighting plate; the annular support portion 12 is located at the bottom end of the conical housing and surrounds the light outlet of the conical housing 1. The annular support portion 12 is a detachable structure, which can better position and fix the conical light-emitting plate 2.
[0057] Optionally, the rotary adjustment device 3 can be a rotary cylinder, a rotary drive platform, or a rotary drive motor.
[0058] Optionally, the rotation adjustment device 3 is electrically connected to the detection camera 4. Specifically, if the detection camera 4 does not detect the area to be detected during image capture, the rotation adjustment device 3 rotates the conical housing 1 by a set angle, and then the detection camera 4 continues to capture images until it detects the area to be detected. The set angle can be 30°, 45°, 60°, or other angles.
[0059] Optionally, the conical light-emitting plate 2 includes a circuit board that fits against the inner sidewall of the conical housing 1 and LED beads mounted on the circuit board.
[0060] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.
Claims
1. A visual inspection device, characterized in that, include: A conical shell (1) is provided with a conical light-emitting plate (2) installed on the inner side wall of the conical shell (1), and a detection through hole (11) for facing the workpiece is provided on the conical shell (1). A rotary adjustment device (3) is connected to the top of the conical shell (1) and is used to drive the conical shell (1) to rotate around the center line of the conical shell (1); The detection camera (4) is fixedly connected to the conical housing (1), and the lens of the detection camera (4) is facing the detection hole.
2. The visual inspection device according to claim 1, characterized in that, At least three detection through holes (11) are provided, and all the detection through holes (11) are arranged in a circumferential array around the center line of the conical shell (1); The conical light-emitting plate (2) is divided into at least three fan-shaped light-emitting areas. Each fan-shaped light-emitting area is provided with a through hole (21) facing a detection through hole (11), and the diameter of the through hole (21) is not less than the diameter of the detection through hole (11). The light emitted from two adjacent sector light-emitting areas is of different colors, and each sector light-emitting area can be opened and closed independently.
3. The visual inspection device according to claim 2, characterized in that, The lens of the detection camera (4) passes sequentially through the detection through hole (11) and the through hole (21).
4. The visual inspection device according to claim 1, characterized in that, It also includes a top plate (5) fixedly connected to the conical shell (1), the top plate (5) covering the top opening of the conical shell; The rotation adjustment device (3) is fixedly connected to the top plate (5).
5. The visual inspection device according to claim 4, characterized in that, The top plate (5) is provided with a protrusion (51) for positioning the conical light-emitting plate (2); The cross section of the protrusion (51) perpendicular to the center line of the conical shell (1) is circular.
6. The visual inspection device according to claim 5, characterized in that, The protrusion (51) is also equipped with a downward-emitting fill light plate.
7. The visual inspection device according to claim 1, characterized in that, The conical shell (1) is also provided with an annular support part (12) for supporting the conical light-emitting plate (2); The annular support (12) is located at the bottom end of the conical shell and surrounds the light outlet of the conical shell (1).
8. The visual inspection device according to claim 1, characterized in that, The rotation adjustment device (3) is a rotary cylinder, a rotary drive platform, or a rotary drive motor.
9. The visual inspection device according to claim 1, characterized in that, The rotation adjustment device (3) is electrically connected to the detection camera (4).
10. The visual inspection device according to claim 1, characterized in that, The conical light-emitting plate (2) includes a circuit board that fits against the inner wall of the conical housing (1) and LED beads mounted on the circuit board.