Spherical detection light source and detection device

Abstract

The utility model relates to the technical field of light source structures, and discloses a spherical detection light source and a detection device. The spherical light emitting assembly is installed on the inner wall of the spherical shell and used for emitting light to the sphere center of the spherical shell; the spherical diffusion plate is installed on the light emitting side of the spherical light emitting assembly and fixedly connected with the spherical shell; the spherical shell, the spherical light emitting assembly and the spherical diffusion plate are combined to form a spherical shell structure, a material passing through groove allowing a workpiece to penetrate through is formed in the spherical shell structure, and the material passing through groove sequentially penetrates through the spherical shell, the spherical light emitting assembly and the spherical diffusion plate. The spherical detection light source and the detection device disclosed by the utility model are compact in structure, and the outer surface of a workpiece can be illuminated more completely without arranging a plurality of light source structures.

Description

Technical Field

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

[0002] Light sources are an indispensable component of machine vision inspection and are widely used in various inspection scenarios. Light sources include ring lights, bar lights, and line lights, among others.

[0003] Existing light sources typically emit light downwards from the top surface of the workpiece, providing relatively uniform and sufficient illumination to the top. However, the illumination effect on the sides of the workpiece is poor. In such cases, an additional light source is usually needed on the side of the workpiece to better illuminate its outer surface. However, installing an additional light source on the side requires a certain amount of installation space and necessitates an additional support bracket, making installation relatively cumbersome.

[0004] Therefore, it is necessary to design a spherical detection light source and detection device that eliminates the need for multiple light source structures and enables the outer surface of the workpiece to receive more complete illumination.

[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 spherical detection light source and detection device, which can provide more complete illumination to the outer surface of the workpiece without the need for multiple light source structures.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A spherical detection light source, comprising:

[0009] Spherical shell;

[0010] A spherical light-emitting component is installed on the inner wall of the spherical shell and is used to emit light towards the center of the spherical shell;

[0011] A spherical diffuser plate is installed on the light-emitting side of the spherical light-emitting assembly and is fixedly connected to the spherical outer shell;

[0012] The spherical shell, the spherical light-emitting component, and the spherical diffuser plate are combined to form a spherical shell structure, and the spherical shell structure is provided with a material passage groove through which the workpiece can pass. The material passage groove sequentially passes through the spherical shell, the spherical light-emitting component, and the spherical diffuser plate.

[0013] Optionally, the spherical shell structure is further provided with three detection holes, which extend from the outer spherical surface of the spherical shell to the inner spherical surface of the spherical diffuser plate; the center line of the detection hole is located on a vertical plane passing through the center of the spherical shell structure;

[0014] The three detection holes are arranged in a circular array around the center of the spherical shell structure.

[0015] Optionally, an annular light-shielding ring is also installed in the detection hole. The annular light-shielding ring surrounds the center line of the detection hole, and its two ends are respectively sealed and attached to the spherical shell and the spherical diffuser plate.

[0016] Optionally, the spherical detection light source also includes a slotted light-shielding plate mounted on the spherical shell structure;

[0017] The slotted light-shielding plate is used to block the gap between the spherical outer shell and the spherical diffuser plate.

[0018] Optionally, the slotted light-shielding plate includes two first arc-shaped light-shielding plate portions and two second arc-shaped light-shielding plate portions;

[0019] The first arc-shaped light-shielding plate portion, the second arc-shaped light-shielding plate portion, and the first arc-shaped light-shielding plate portion and the second arc-shaped light-shielding plate portion are connected end to end in sequence, and the first arc-shaped light-shielding plate portion and the second arc-shaped light-shielding plate portion are perpendicular to each other.

[0020] Optionally, the extended surface of the bottom wall of the material passageway passes through the center of the spherical shell structure.

[0021] Optionally, the cross-section of the material passage is rectangular.

[0022] Optionally, the center of the spherical shell, the center of the spherical light-emitting component, and the center of the spherical diffuser plate coincide with each other.

[0023] Optionally, the spherical light-emitting assembly includes a spherical circuit board and LED beads spaced apart on the spherical circuit board;

[0024] The LED beads are installed on the side of the spherical circuit board near the spherical diffuser plate.

[0025] A detection device includes a camera and a spherical detection light source as described in any of the preceding claims.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The spherical detection light source and detection device provided by this utility model form a spherical shell structure by combining a spherical outer shell, a spherical light-emitting component, and a spherical diffuser plate. A material passage groove is provided on the spherical shell structure, allowing the workpiece to enter the spherical shell structure along the material passage groove, thus completely illuminating the outer periphery of the workpiece. This embodiment of the spherical detection light source and detection device only requires a single spherical detection light source to effectively illuminate the entire outer periphery of the workpiece, ensuring more complete illumination of the workpiece's outer surface.

[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 spherical detection light source provided in this embodiment of the utility model;

[0031] Figure 2 This is a three-dimensional structural schematic diagram of the spherical detection light source provided in this embodiment of the utility model;

[0032] Figure 3 This is a cross-sectional structural schematic diagram of the spherical detection light source provided in this embodiment of the present invention;

[0033] Figure 4 This is a cross-sectional structural diagram of another spherical detection light source provided in an embodiment of this utility model.

[0034] Reference numerals: 1. Spherical shell; 2. Spherical light-emitting component; 3. Spherical diffuser plate; 4. Groove light-shielding plate; 41. First arc-shaped light-shielding plate section; 42. Second arc-shaped light-shielding plate section; 100. Spherical shell structure; 101. Detection hole; 102. Annular light-shielding ring; 200. Material passage groove. 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] Example 1

[0045] In view of the aforementioned defects in existing light sources, 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, actively conducted research and innovation in order to create a solution to the defects in existing technologies and make the spherical detection light source more practical. After continuous research, design, and repeated prototype production and improvements, this utility model with real practical value was finally created.

[0046] Please refer to Figures 1 to 3 This utility model provides a spherical detection light source, including a spherical shell 1, a spherical light-emitting component 2, and a spherical diffuser plate 3.

[0047] The spherical light-emitting component 2 is installed on the inner wall of the spherical shell 1 and is used to emit light towards the center of the spherical shell 1. The spherical diffuser plate 3 is installed on the light-emitting side of the spherical light-emitting component 2 and is fixedly connected to the spherical shell 1. The spherical shell 1, the spherical light-emitting component 2 and the spherical diffuser plate 3 are combined to form a spherical shell structure 100. The spherical shell structure 100 is provided with a material passage 200 through which the workpiece can pass. The material passage 200 sequentially passes through the spherical shell 1, the spherical light-emitting component 2 and the spherical diffuser plate 3.

[0048] In this embodiment, a spherical shell structure 100 is formed by combining a spherical outer shell 1, a spherical light-emitting component 2, and a spherical diffuser plate 3. The spherical shell structure 100 has a material passage 200 through which a workpiece can pass. The workpiece can enter the spherical shell structure along the material passage 200, allowing its outer perimeter to be fully illuminated. This embodiment requires only one spherical detection light source to effectively illuminate the entire outer perimeter of the workpiece, providing more complete illumination to the workpiece's outer surface and facilitating the camera 300's detection of surface defects on the entire outer surface of the workpiece.

[0049] In this embodiment, the spherical shell 1, the spherical light-emitting component 2, and the spherical diffuser plate 3 are parallel to each other.

[0050] In this embodiment, the pre-detection process is as follows:

[0051] The robotic arm grips, picks up, or inserts the workpiece, then transfers the workpiece to the material passage 200. The robotic arm then moves the workpiece down into the spherical shell structure 100, where the spherical light-emitting component 2 emits light to illuminate the entire outer periphery of the workpiece.

[0052] After the workpiece is transferred to the set detection position, the camera 300 takes a picture of the workpiece through the detection hole 101 to detect whether there are surface defects on the surface of the workpiece.

[0053] Optionally, the spherical shell structure 100 is also provided with three detection holes 101, which extend from the outer spherical surface of the spherical shell 1 to the inner spherical surface of the spherical diffuser plate 3; the center line of the detection hole 101 is located on a vertical plane passing through the center of the spherical shell structure 100; the three detection holes 101 are arranged in a circular array around the center of the spherical shell structure 100.

[0054] like Figure 3 or Figure 4 Three cameras 300 take pictures of the workpiece in the material passage 200 through three detection holes 101, so that the entire outer peripheral surface of the workpiece is photographed and inspected. It should be noted that the workpiece is generally photographed and inspected at the center of the spherical shell structure 100.

[0055] Optionally, an annular light-shielding ring 102 is also installed in the detection hole 101. The annular light-shielding ring 102 surrounds the center line of the detection hole 101, and its two ends are respectively sealed and fitted to the spherical shell 1 and the spherical diffuser plate 3. Specifically, as shown in the figure... Figure 4 As shown, the annular light-shielding ring 102 shields the gap between the spherical outer shell 1 and the spherical diffuser plate 3, preventing light from shining directly onto the workpiece through the detection hole 101, thus making the illumination effect on the workpiece surface more uniform.

[0056] Optionally, the spherical detection light source also includes a slotted light-shielding plate 4 mounted on the spherical shell structure 100; the slotted light-shielding plate 4 is used to block the gap between the spherical shell 1 and the spherical diffuser plate 3, preventing the light from the spherical light-emitting component 2 from escaping through the gap and directly hitting the workpiece. Preferably, the slotted light-shielding plate 4 is a diffuser plate.

[0057] Optionally, the slotted light-shielding plate 4 includes two first arc-shaped light-shielding plate portions 41 and two second arc-shaped light-shielding plate portions 42; the first arc-shaped light-shielding plate portions 41, the second arc-shaped light-shielding plate portions 42, and the first arc-shaped light-shielding plate portions 41 and the second arc-shaped light-shielding plate portions 42 are connected end-to-end in sequence, and the first arc-shaped light-shielding plate portions 41 and the second arc-shaped light-shielding plate portions 42 are perpendicular to each other. Figure 1 As shown, the widths of the first arc-shaped light-shielding plate portion 41 and the second arc-shaped light-shielding plate portion 42 are equal to the distance from the outer spherical surface of the spherical shell 1 through to the inner spherical surface of the spherical diffuser plate 3, thereby avoiding problems such as light leakage that affect the detection results.

[0058] Optionally, the extension surface of the bottom wall of the material passage 200 passes through the center of the spherical shell structure 100. On the one hand, this makes it easier for the workpiece to enter the spherical shell structure 100, and on the other hand, it does not significantly reduce the light illuminating the opposite sides of the workpiece. That is, it makes the transfer of the workpiece simpler while still meeting the requirements of the detection light.

[0059] Optionally, the cross-section of the material passage 200 is rectangular. Preferably, the cross-section of the material passage 200 can also be trapezoidal, sector-shaped, U-shaped, or other shapes.

[0060] In this embodiment, the center of the spherical shell 1, the center of the spherical light-emitting component 2, and the center of the spherical diffuser plate 3 coincide with each other.

[0061] Optionally, the spherical light-emitting assembly 2 includes a spherical circuit board and LED beads spaced apart on the spherical circuit board; the LED beads are installed on the side of the spherical circuit board near the spherical diffuser plate 3.

[0062] Example 2

[0063] This embodiment discloses a detection device, including a camera 300 and a spherical detection light source as described in any one of Embodiment 1.

[0064] 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 detection light source, characterized in that, include: Spherical shell (1); A spherical light-emitting component (2) is installed on the inner wall of the spherical shell (1) and is used to emit light into the center of the spherical shell (1); A spherical diffuser plate (3) is installed on the light-emitting side of the spherical light-emitting assembly (2) and is fixedly connected to the spherical shell (1); The spherical shell (1), the spherical light-emitting component (2), and the spherical diffuser plate (3) are combined to form a spherical shell structure (100), and a material passage groove (200) is provided on the spherical shell structure (100) for the workpiece to pass through. The material passage groove (200) sequentially passes through the spherical shell (1), the spherical light-emitting component (2), and the spherical diffuser plate (3).

2. The spherical detection light source according to claim 1, characterized in that, The spherical shell structure (100) is also provided with three detection holes (101), which penetrate from the outer spherical surface of the spherical shell (1) to the inner spherical surface of the spherical diffuser plate (3); the center line of the detection hole (101) is located on a vertical plane passing through the center of the spherical shell structure (100); The three detection holes (101) are arranged in a circumferential array around the center of the spherical shell structure (100).

3. The spherical detection light source according to claim 2, characterized in that, An annular light-shielding ring (102) is also installed in the detection hole (101). The annular light-shielding ring (102) surrounds the center line of the detection hole (101), and its two ends are respectively sealed and attached to the spherical shell (1) and the spherical diffuser plate (3).

4. The spherical detection light source according to claim 1, characterized in that, It also includes a slotted light-shielding plate (4) installed on the spherical shell structure (100); The slotted light-shielding plate (4) is used to block the gap between the spherical shell (1) and the spherical diffuser plate (3).

5. The spherical detection light source according to claim 4, characterized in that, The slotted light-shielding plate (4) includes two first arc-shaped light-shielding plate portions (41) and two second arc-shaped light-shielding plate portions (42); The first arc-shaped light-shielding plate portion (41), the second arc-shaped light-shielding plate portion (42), the first arc-shaped light-shielding plate portion (41) and the second arc-shaped light-shielding plate portion (42) are connected end to end in sequence, and the first arc-shaped light-shielding plate portion (41) and the second arc-shaped light-shielding plate portion (42) are perpendicular to each other.

6. The spherical detection light source according to claim 1, characterized in that, The extension surface of the bottom wall of the material passage (200) passes through the center of the spherical shell structure (100).

7. The spherical detection light source according to claim 1, characterized in that, The cross-section of the material passage (200) is rectangular.

8. The spherical detection light source according to claim 1, characterized in that, The center of the spherical shell (1), the center of the spherical light-emitting component (2), and the center of the spherical diffuser plate (3) coincide with each other.

9. The spherical detection light source according to claim 1, characterized in that, The spherical light-emitting component (2) includes a spherical circuit board and LED beads spaced apart on the spherical circuit board; The LED beads are installed on the side of the spherical circuit board near the spherical diffuser plate (3).

10. A detection device, characterized in that, It includes a camera (300) and a spherical detection light source as described in any one of claims 1 to 9.

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