A kind of visual detection device and sphere integral light source device

Abstract

The utility model relates to machine vision detection technical field discloses a kind of sphere integral light source and visual detection device, including hemispherical shell structure and light-emitting lamp plate;The hemispherical shell structure has several light baffles, and the center symmetry plane of each light baffle includes the set central axis passing through the hemispherical shell structure ball center, and the set central axis is parallel to horizontal plane;The side plate surface of each light baffle is attached with the light-emitting lamp plate, and the inner spherical surface of the hemispherical shell structure is diffuse reflection surface.The sphere integral light source device and visual detection device of the utility model, structure is simpler and easy to install.

Description

Technical Field

[0001] This utility model relates to the field of machine vision inspection technology, and in particular to a spherical integrating light source device and a vision inspection device. Background Technology

[0002] Chinese invention patent application number CN202311841119.7 discloses a spherical integrating light source device, which can improve the brightness of the light source, facilitate product imaging, and improve detection accuracy. However, in the above-mentioned spherical integrating light source device, the top cover, the light-emitting element, and the diffuse reflection element are all in the shape of a hollow integrating hemisphere. The light emitted by the light-emitting element directly passes through the diffuse reflection element and shines on the workpiece to be measured. The light-emitting element includes a fixing element and multiple PCB boards that need to be installed separately. Each PCB board is equipped with one LED. The number of PCB boards is large and they are easy to install incorrectly, making the installation relatively complex and prone to errors.

[0003] Therefore, it is necessary to design a spherical integrating light source device and a visual inspection device that can reduce structural complexity and installation difficulty.

[0004] 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

[0005] This invention provides a spherical integrating light source device and a visual inspection device, which have a simpler structure and are easier to install.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A spherical integrating light source device includes a hemispherical shell structure and a light-emitting lamp plate;

[0008] The hemispherical shell structure has several light-blocking plates, and the central symmetry plane of each light-blocking plate includes a predetermined central axis passing through the center of the hemispherical shell structure, and the predetermined central axis is parallel to the horizontal plane.

[0009] Each of the light-shielding plates has a light-emitting lamp plate attached to its side panel, and the inner spherical surface of the hemispherical shell structure is a diffuse reflection surface.

[0010] Optionally, a light-emitting cavity is formed between two adjacent light-blocking plates, and the light-emitting cavity has a crescent-shaped light-emitting opening facing the center of the hemispherical shell structure;

[0011] The light-emitting panel is fan-shaped and has LED beads arranged in an array at intervals around the center of the hemispherical shell.

[0012] Optionally, the spherical integrating light source device also includes a diffuser shell in the shape of a hemispherical shell;

[0013] The top of the diffuser shell is attached to the bottom surface of the light-blocking plate, so that the light-emitting cavity forms a sealed cavity.

[0014] Optionally, the spherical integrating light source device also includes an annular support;

[0015] The annular support is provided with a first annular positioning groove for positioning the hemispherical shell structure and a second annular positioning groove for positioning the diffuse shell, and the first annular positioning groove surrounds the second annular positioning groove.

[0016] The set central axis is parallel to the bottom surface of the annular support.

[0017] Optionally, an elastic washer is installed in the second annular positioning groove;

[0018] The diffused shell is pressed onto the elastic washer.

[0019] Optionally, the hemispherical shell structure further includes a diffuse reflection film attached to the inner wall of the hemispherical shell structure, the diffuse reflection film forming the inner spherical surface of the hemispherical shell structure.

[0020] Optionally, the hemispherical shell structure further includes a crescent-shaped splicing plate;

[0021] All the crescent-shaped splicing panels and all the light-blocking panels constitute the hemispherical shell structure.

[0022] Optionally, two adjacent crescent-shaped splicing panels clamp one of the light-blocking panels, and the two adjacent crescent-shaped splicing panels are detachably connected.

[0023] Optionally, the hemispherical shell structure is provided with a detection through hole.

[0024] A visual inspection device includes a spherical integrating light source device as described in any of the preceding claims.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The spherical integrating light source device and vision inspection device provided by this utility model, through ingenious structural design, allow the light-emitting plate to be mounted on a light-blocking plate with a hemispherical shell structure. The light-emitting plate does not directly block the inner spherical surface, and part of the light emitted from the light-emitting plate can be diffused by the inner spherical surface and then directed onto the workpiece on the bottom side, improving the illumination effect on the workpiece. In this embodiment, there is no need to separately install multiple PCB boards with only one LED, and the side surface of the light-blocking plate is flat, making it easier to mount the light-emitting plate, simplifying the structure of the spherical integrating light source device, and making the spherical integrating light source device easier to install.

[0027] 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

[0028] 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.

[0029] Figure 1 This is a top view schematic diagram of the spherical integrating light source device provided in this embodiment of the utility model;

[0030] Figure 2 yes Figure 1 A schematic diagram of the AA cross-sectional structure of the integrator light source device in the middle sphere;

[0031] Figure 3 yes Figure 1 Schematic diagram of the BB cross-sectional structure of the integrator light source device in the middle sphere;

[0032] Figure 4 This is a three-dimensional structural schematic diagram of the spherical integrating light source device provided in this embodiment of the utility model.

[0033] Reference numerals: 100, Setting the central axis; 101, Light-emitting cavity; 102, Detection through hole; 1, Hemispherical shell structure; 11, Light-blocking plate; 12, Crescent-shaped splicing plate; 2, Light-emitting lamp plate; 3, Diffusing shell; 41, First annular positioning groove; 42, Second annular positioning groove; 401, Elastic pad. Detailed Implementation

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] Example 1

[0044] In view of the shortcomings of existing sphere integrating light source devices, the applicant, based on years of practical experience and professional knowledge in the design and manufacture of such products, and in conjunction with the application of theoretical principles, actively conducted research and innovation in order to create a device that could overcome the deficiencies of the existing technology and make the sphere integrating light source device more practical. After continuous research, design, and repeated prototype production and improvement, this utility model with real practical value was finally created.

[0045] Please refer to Figures 1 to 4 This utility model provides a spherical integrating light source device, including a hemispherical shell structure 1 and a light-emitting plate 2, wherein the hemispherical shell structure 1 is in the shape of a hollow integrating hemisphere.

[0046] The hemispherical shell structure 1 has several light-blocking plates 11. The central symmetry plane of each light-blocking plate 11 includes a predetermined central axis 100 passing through the center of the hemispherical shell structure 1, and the predetermined central axis 100 is parallel to the horizontal plane, so that the light-blocking plate 11 can block light as little as possible and improve the brightness of the emitted light. In this embodiment, a light-emitting lamp plate 2 is attached to the side plate surface of each light-blocking plate 11, and the inner spherical surface of the hemispherical shell structure 1 is a diffuse reflection surface.

[0047] In this embodiment, the spherical integrating light source device employs a clever structural design, allowing the light-emitting plate 2 to be mounted on the light-blocking plate 11 of the hemispherical shell structure 1. The light-emitting plate 2 does not directly obstruct the inner spherical surface, and some of the light emitted from the light-emitting plate 2 can be diffused by the inner spherical surface before reaching the workpiece on the bottom side, improving the illumination effect on the workpiece. Furthermore, the central symmetry plane of each light-blocking plate 11 includes a predetermined central axis 100 passing through the center of the hemispherical shell structure 1, resulting in less light obstruction and better enhancement of light intensity. In this embodiment, it eliminates the need for multiple PCB boards with only one LED each, as in the prior art, and the side panels of the light-blocking plate 11 are flat, making it easier to mount the light-emitting plate 2, simplifying the structure of the spherical integrating light source device and making it easier to install.

[0048] Optionally, a light-emitting cavity 101 is formed between two adjacent light-blocking plates 11, and the light-emitting cavity 101 has a crescent-shaped light-emitting opening facing the center of the hemispherical shell structure 1; the light-emitting lamp plate 2 is fan-shaped, and the light-emitting lamp plate 2 has lamp beads arranged in an array at intervals around the center of the hemispherical shell. Light-emitting lamp plates 2 are provided on the opposite two sides of the cavity wall of the light-emitting cavity 101. The light-emitting lamp plate 2 is fan-shaped, and the lamp beads on the light-emitting lamp plate 2 are also arranged in a fan shape or in an arc shape around the center of the hemispherical shell structure 1, thereby improving the light intensity.

[0049] Optionally, the spherical integrating light source device also includes a hemispherical diffuser shell 3; the top of the diffuser shell 3 is attached to the bottom surface of the light-blocking plate 11, so that the light-emitting cavity 101 forms a sealed cavity. Specifically, the light emitted by the inner spherical surface is further diffused and dispersed by the diffuser shell 3 before being directed toward the workpiece, making the emitted light softer and more uniform.

[0050] Optionally, the spherical integrating light source device further includes an annular support member 4; the annular support member 4 is provided with a first annular positioning groove 41 for positioning the hemispherical shell structure 1 and a second annular positioning groove 42 for positioning the diffuse shell 3, and the first annular positioning groove 41 surrounds the second annular positioning groove 42; the central axis 100 is set to be parallel to the bottom surface of the annular support member 4. In this embodiment, the annular support member 4 serves to support and position the hemispherical shell structure 1 and the diffuse shell 3, wherein the first annular positioning groove 41 is used to position the hemispherical shell structure 1, and the second annular positioning groove 42 is used to position the diffuse shell 3. It should be noted that the first annular positioning groove 41 and the second annular positioning groove 42 can be interconnected or separated from each other.

[0051] Optionally, an elastic washer 401 is installed in the second annular positioning groove 42; the diffuser shell 3 presses against the elastic washer 401. Specifically, the elastic force of the elastic washer 401 keeps the diffuser shell 3 in contact with each light-blocking plate 11.

[0052] Optionally, the hemispherical shell structure 1 also includes a diffuse reflection film attached to the inner wall of the hemispherical shell structure 1, the diffuse reflection film forming the inner spherical surface of the hemispherical shell structure 1. In this embodiment, after the diffuse reflection film is damaged, a new diffuse reflection film can be replaced, thereby ensuring the light diffusion effect.

[0053] Optionally, the hemispherical shell structure 1 also includes crescent-shaped splicing panels 12; all crescent-shaped splicing panels 12 and all light-blocking panels 11 constitute the hemispherical shell structure 1. Preferably, the two adjacent crescent-shaped splicing panels 12 are detachably connected. After one crescent-shaped splicing panel 12 is damaged, a new crescent-shaped splicing panel 12 can be replaced.

[0054] Optionally, a light-blocking plate 11 is clamped between two adjacent crescent-shaped splicing plates 12, and the two adjacent crescent-shaped splicing plates 12 are detachably connected.

[0055] Optionally, a detection through-hole 102 is provided on the hemispherical shell structure 1, through which the camera takes pictures of the workpiece for inspection.

[0056] Example 2

[0057] This embodiment discloses a visual inspection device, including a spherical integrating light source device as described in Embodiment 1.

[0058] 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 spherical integrating light source device, characterized in that, It includes a hemispherical shell structure (1) and a light-emitting plate (2); The hemispherical shell structure (1) has a number of light-blocking plates (11), and the central symmetry plane of each light-blocking plate (11) includes a set central axis (100) passing through the center of the hemispherical shell structure (1), and the set central axis (100) is parallel to the horizontal plane. Each of the light-shielding plates (11) has a light-emitting plate (2) attached to its side panel, and the inner spherical surface of the hemispherical shell structure (1) is a diffuse reflection surface.

2. The spherical integrating light source device according to claim 1, characterized in that, A light-emitting cavity (101) is formed between two adjacent light-blocking plates (11), and the light-emitting cavity (101) has a crescent-shaped light-emitting opening facing the center of the hemispherical shell structure (1); The light-emitting plate (2) is fan-shaped and has LED beads arranged in an array at intervals around the center of the hemispherical shell.

3. The spherical integrating light source device according to claim 2, characterized in that, It also includes a diffuse shell that is hemispherical in shape (3); The top of the diffuse shell (3) is attached to the bottom surface of the light shield (11), so that the light output cavity (101) forms a sealed cavity.

4. The spherical integrating light source device according to claim 3, characterized in that, It also includes a ring-shaped support (4); The annular support (4) is provided with a first annular positioning groove (41) for positioning the hemispherical shell structure (1) and a second annular positioning groove (42) for positioning the diffuse shell (3), and the first annular positioning groove (41) surrounds the second annular positioning groove (42). The set central axis (100) is parallel to the bottom surface of the annular support (4).

5. The spherical integrating light source device according to claim 4, characterized in that, An elastic washer (401) is installed in the second annular positioning groove (42); The diffuse shell (3) is pressed on the elastic washer (401).

6. The spherical integrating light source device according to claim 1, characterized in that, The hemispherical shell structure (1) also includes a diffuse reflection film attached to the inner wall of the hemispherical shell structure (1), the diffuse reflection film forming the inner spherical surface of the hemispherical shell structure (1).

7. The spherical integrating light source device according to claim 1, characterized in that, The hemispherical shell structure (1) also includes a crescent-shaped splicing plate (12); All the crescent-shaped splicing panels (12) and all the light-blocking panels (11) constitute the hemispherical shell structure (1).

8. The spherical integrating light source device according to claim 7, characterized in that, Two adjacent crescent-shaped splicing panels (12) clamp a light-blocking plate (11), and the two adjacent crescent-shaped splicing panels (12) are detachably connected.

9. The spherical integrating light source device according to claim 1, characterized in that, The hemispherical shell structure (1) is provided with a detection through hole (102).

10. A visual inspection device, characterized in that, It includes a spherical integrating light source device as described in any one of claims 1 to 9.

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