A kind of product surface defect detection device of sphere integral light source

Abstract

The utility model relates to machine vision detection technical field discloses a kind of sphere integral light source and product surface defect detection device, including integral half-shell structure, integral half-shell structure is combined by N piece crescent splicing plate and N+1 piece light separation plate, N is greater than 3 positive integer;Among two adjacent crescent splicing plates, one of the crescent splicing plates has a press hook portion, another crescent splicing plate has a protruding portion for extending into the hook mouth of the press hook portion, and the protruding portion and the press hook portion clamp one of the light separation plates.The sphere integral light source and product surface defect detection device of the utility model are convenient to assemble, and can reduce the use cost of sphere integral light source.

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 and a product surface defect detection device. Background Technology

[0002] The sphere integral light source is one of the most classic lighting sources and is widely used in the field of machine vision inspection technology.

[0003] Chinese patent application CN201721538230.9 discloses a composite spherical integrating light source, including a hemispherical shell with an integral structure. The hemispherical shell is heavy and difficult to assemble. In addition, if there is a dent or damage to a part of the hemispherical shell, it can easily affect the installation position of the internal circuit board. At this time, the entire hemispherical shell needs to be replaced, resulting in a high cost of using the spherical integrating light source.

[0004] Therefore, it is necessary to design a sphere integrating light source and a product surface defect detection device. The sphere integrating light source is easy to assemble and can help reduce the cost of using the sphere integrating light source.

[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 sphere integrating light source and a product surface defect detection device, which not only improves assembly convenience but also helps reduce the cost of using the sphere integrating light source.

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

[0008] A spherical integrating light source includes an integrating hemispherical shell structure, wherein the integrating hemispherical shell structure is composed of N crescent-shaped splicing plates and N+1 light-blocking plates, where N is a positive integer greater than 3;

[0009] In two adjacent crescent-shaped splicing panels, one of the crescent-shaped splicing panels has a hook portion, and the other crescent-shaped splicing panel has a protrusion for inserting into the hook portion, and the protrusion portion and the hook portion clamp a light-blocking plate.

[0010] Optionally, the pressure hook portion includes a first connecting portion, a second connecting portion, and a third connecting portion connected in sequence;

[0011] The first connecting portion is parallel to the third connecting portion, and the two ends of the second connecting portion are respectively connected to the first connecting portion and the third connecting portion;

[0012] The third connecting portion includes a connecting plate portion for connecting the second connecting portion and an elastic plate mounted on the connecting plate portion to elastically press the protrusion portion, the elastic plate being in contact with the connecting plate portion.

[0013] Optionally, at least two positioning posts are spaced apart on the protrusion, and the light-blocking plate is provided with positioning holes that match the positioning posts;

[0014] The length of the positioning post is less than the thickness of the light-blocking plate.

[0015] Optionally, a light-emitting cavity is formed between two adjacent light-shielding plates, and light-emitting lamp plates are attached to the surface of each light-shielding plate near the light-emitting cavity.

[0016] Optionally, the crescent-shaped splicing plate has a concave arc surface facing one of the light-emitting cavities, and the concave arc surface is a diffuse reflection surface.

[0017] Optionally, the integral hemispherical shell structure further includes an annular support portion;

[0018] All the crescent-shaped splicing panels and all the light-blocking panels form a hemispherical shell-shaped assembly, and the annular support portion has an annular groove for supporting the hemispherical shell-shaped assembly.

[0019] Optionally, the spherical integrating light source further includes a hemispherical diffuser shell, the top surface of which abuts against the light-blocking plate, and the diffuser shell is mounted on the annular support.

[0020] A product surface defect detection device includes a spherical integrating light source as described in any of the preceding claims.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The spherical integrating light source and product surface defect detection device provided by this utility model have an integrating hemispherical shell structure composed of N crescent-shaped splicing plates and N+1 light-blocking plates. Adjacent crescent-shaped splicing plates can be quickly assembled and clamped together using hooks and protrusions, making the assembly and disassembly of the entire integrating hemispherical shell simpler and more convenient. In addition, if one of the crescent-shaped splicing plates is damaged, the damaged crescent-shaped splicing plate can be removed and replaced with a new one, without the need to replace the entire integrating hemispherical shell structure, which helps to reduce the operating cost of the spherical integrating light source.

[0023] 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

[0024] 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.

[0025] Figure 1 This is a top view schematic diagram of the spherical integrating light source provided in this embodiment of the utility model;

[0026] Figure 2 yes Figure 1 A schematic diagram of the AA cross-sectional structure of the sphere-integrating light source;

[0027] Figure 3 yes Figure 2 A magnified schematic diagram of the spherical integrating light source at position A;

[0028] Figure 4 This is a schematic diagram of the connection structure between crescent-shaped splicing plates in another spherical integrating light source provided in this embodiment of the present invention.

[0029] Reference numerals: 1. Integral hemispherical shell structure; 100. Light-emitting cavity; 101. First connecting part; 102. Second connecting part; 103. Third connecting part; 1031. Connecting plate part; 1032. Elastic plate; 11. Crescent-shaped splicing plate; 1121. Positioning post; 1122. Positioning hole; 111. Pressing hook part; 112. Protrusion part; 12. Light blocking plate; 121. Light-emitting lamp plate; 2. Annular support part; 21. Annular groove; 3. Diffusing shell. Detailed Implementation

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] Example 1

[0040] In view of the aforementioned deficiencies of existing sphere integrating 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, has actively conducted research and innovation in order to create a solution that overcomes the shortcomings of existing technologies and makes the sphere integrating light source more practical. Through continuous research and design, and after repeated prototype production and improvements, this utility model with genuine practical value has finally been created.

[0041] Please refer to Figures 1 to 3 This utility model embodiment provides a spherical integrating light source, including an integrating hemispherical shell structure 1. The integrating hemispherical shell structure 1 is composed of N crescent-shaped splicing plates 11 and N+1 light-blocking plates 12, where N is a positive integer greater than 3; as shown... Figure 1 and Figure 2 As shown, in this embodiment, there are 9 crescent-shaped splicing panels 11 and 10 light-blocking plates 12. The ends of the crescent-shaped splicing panels 11 are close together and the middle is bent outward. During the assembly process, they are generally assembled from left to right or from right to left to form the required integral hemispherical shell structure 1. In two adjacent crescent-shaped splicing panels 11, one crescent-shaped splicing panel 11 has a hook portion 111, and the other crescent-shaped splicing panel 11 has a protrusion 112 for inserting into the hook opening of the hook portion 111, and the protrusion 112 and the hook portion 111 clamp a light-blocking plate 12. In this embodiment, the light-blocking plate 12 is directly clamped and positioned, making assembly quick and simple.

[0042] In summary, the integrating hemispherical shell 1 is easy to assemble and disassemble. Furthermore, if one of the crescent-shaped splicing panels 11 is damaged, the damaged panel 11 can be removed and replaced with a new one, eliminating the need to replace the entire integrating hemispherical shell structure 1. This helps reduce the operating cost of the spherical integrating light source.

[0043] In this embodiment, a light-emitting cavity 100 is formed between two adjacent light-shielding plates 12, and a light-emitting lamp plate 121 is attached to the surface of the light-shielding plate 12 near the light-emitting cavity 100. The light-emitting lamp plate 121 emits light, and after reflection, refraction or diffusion, the light is directed to the bottom side and exits from the bottom outlet of the integrating hemispherical shell structure 1 to illuminate the workpiece to be measured.

[0044] In a preferred embodiment, the crescent-shaped splicing plate 11 has a concave arc surface facing a light-emitting cavity 100, and the concave arc surface is a diffuse reflection surface. The light emitted from the light-emitting lamp plate 121 is diffusely reflected by the concave arc surface and then directed onto the workpiece, which can provide a more uniform lighting effect for the workpiece.

[0045] Optionally, the pressure hook portion 111 includes a first connecting portion 101, a second connecting portion 102, and a third connecting portion 103 connected in sequence; the first connecting portion 101 is parallel to the third connecting portion 103, and the two ends of the second connecting portion 102 are respectively connected to the first connecting portion 101 and the third connecting portion 103; the third connecting portion 103 includes a connecting plate portion 1031 for connecting the second connecting portion 102 and an elastic plate 1032 installed on the connecting plate portion 1031 to elastically press against the protrusion 112, the elastic plate 1032 being in contact with the connecting plate portion 1031. In this embodiment, the elastic plate 1032 can elastically press against the light-blocking plate 12, thereby fixing the light-blocking plate 12. In addition, the provision of the elastic plate 1032 can also prevent the light-blocking plate 12 from slipping due to its small thickness.

[0046] During assembly, first attach the light shield 12 to the protrusion 112, and then push the protrusion 112 and the light shield 12 together into the hook opening of the hook part 111 to complete the assembly.

[0047] Optionally, please refer to Figure 4 In another specific embodiment, at least two positioning posts 1121 are spaced apart on the protrusion 112, and the light-blocking plate 12 is provided with positioning holes 1122 that match the positioning posts 1121; the length of the positioning posts 1121 is less than the thickness of the light-blocking plate 12. In this embodiment, the provision of at least two positioning posts 1121 can position the light-blocking plate 12 on the side of the protrusion 112, thereby further reducing the assembly difficulty. That is, after the positioning posts 1121 pass through the positioning holes 1122, the light-blocking plate 12 is positioned in the appropriate position, eliminating the need for manual fixing of the light-blocking plate 12 and effectively avoiding the problem of incorrect installation position of the light-blocking plate 12.

[0048] Optionally, the integral hemispherical shell structure 1 further includes an annular support portion 2; all crescent-shaped splicing plates 11 and all light-blocking plates 12 form a hemispherical shell-shaped assembly, with the two adjacent crescent-shaped splicing plates 11 snap-fitted together; the annular support portion 2 has an annular groove 21 for supporting the hemispherical shell-shaped assembly. The annular groove 21 can accurately position the hemispherical shell-shaped assembly, further reducing the assembly difficulty.

[0049] Optionally, the spherical integrating light source also includes a hemispherical diffuser shell 3, which diffuses the light, making the light more evenly illuminate the workpiece. The top surface of the diffuser shell 3 abuts against the light-blocking plate 12, thus making the light-emitting cavity 100 a sealed cavity 100. The diffuser shell 3 is mounted on the annular support 2.

[0050] Example 2

[0051] This embodiment discloses a product surface defect detection device, including a spherical integrating light source as described in Embodiment 1.

[0052] 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, characterized in that, It includes an integral hemispherical shell structure (1), which is composed of N crescent-shaped splicing plates (11) and N+1 light-blocking plates (12), where N is a positive integer greater than 3; In two adjacent crescent-shaped splicing panels (11), one of the crescent-shaped splicing panels (11) has a hook portion (111), and the other crescent-shaped splicing panel (11) has a protrusion portion (112) for extending into the hook opening of the hook portion (111), and the protrusion portion (112) and the hook portion (111) clamp a light-blocking plate (12).

2. The spherical integrating light source according to claim 1, characterized in that, The press hook part (111) includes a first connecting part (101), a second connecting part (102) and a third connecting part (103) connected in sequence; The first connecting part (101) is parallel to the third connecting part (103), and the two ends of the second connecting part (102) are respectively connected to the first connecting part (101) and the third connecting part (103); The third connecting part (103) includes a connecting plate part (1031) for connecting the second connecting part (102) and an elastic plate (1032) installed on the connecting plate part (1031) to elastically press the protrusion (112), the elastic plate (1032) being in contact with the connecting plate part (1031).

3. The spherical integrating light source according to claim 1, characterized in that, At least two positioning posts (1121) are spaced apart on the protrusion (112), and the light shield (12) is provided with positioning holes (1122) that match the positioning posts (1121); The length of the positioning post (1121) is less than the thickness of the light shield (12).

4. The spherical integrating light source according to claim 1, characterized in that, A light-emitting cavity (100) is formed between two adjacent light-blocking plates (12), and light-emitting lamp plates (121) are attached to the surface of each light-blocking plate (12) near the light-emitting cavity (100).

5. The spherical integrating light source according to claim 4, characterized in that, The crescent-shaped splicing plate (11) has a concave arc surface facing one of the light-emitting cavities (100), and the concave arc surface is a diffuse reflection surface.

6. The spherical integrating light source according to claim 1, characterized in that, The integral hemispherical shell structure (1) also includes an annular support (2); All the crescent-shaped splicing panels (11) and all the light-blocking panels (12) form a hemispherical shell-shaped assembly, and the annular support (2) has an annular groove (21) for supporting the hemispherical shell-shaped assembly.

7. The spherical integrating light source according to claim 6, characterized in that, It also includes a hemispherical diffuser shell (3), the top surface of which abuts against the light-blocking plate (12), and the diffuser shell (3) is mounted on the annular support (2).

8. A product surface defect detection device, characterized in that, It includes a spherical integrating light source as described in any one of claims 1 to 7.

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