Polishing device and detection device
By combining direct and tilted light panels in the light source device, the workpiece surface is illuminated from multiple angles, solving the problem of incomplete detection of some surface defects in the existing technology and improving the detection accuracy.
Patent Information
- Application Number
- CN202520268467.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-02-19
AI Technical Summary
When existing light sources illuminate the surface of a workpiece, some surface defects are not obvious at certain angles, leading to incomplete detection.
Design a lighting device comprising a first light-emitting component, a second light-emitting component, and a third light-emitting component, which emit light in direct and oblique modes respectively, to ensure that the surface of the workpiece is illuminated from multiple angles, including the combined use of direct light panels and oblique light panels.
It improves the detection accuracy of workpiece surface defects, avoids the concealment of local defects, and achieves a more comprehensive detection effect.
Smart Images
Figure CN223650418U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of light source structure technology, and in particular to a lighting device and a detection device. Background Technology
[0002] Visual inspection uses machines to replace human eyes in measuring and judging, thereby determining whether there are defects on the surface of a workpiece. The light source is a crucial component of visual inspection; common light sources include bar lights, stripe lights, point lights, ring lights, and so on.
[0003] In existing technologies, light sources emit light that illuminates the surface of a workpiece at a predetermined angle, enabling the camera to detect scratches, surface abrasions, or cracks. However, under the illumination of such light sources, the light emission direction is the same, and some surface defects are not obvious under specific angles of illumination, thus making it easy for some surface defects to go undetected.
[0004] Therefore, it is necessary to design a lighting device and a detection device that can make surface defects on workpieces easier to display.
[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 lighting device and a detection device that makes it easier to display surface defects on workpieces.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A lighting device, comprising:
[0009] Fixed base plate;
[0010] The first light-emitting component is installed on the bottom side of the fixed base plate. The first light-emitting component includes at least three direct-light panels, and the light-emitting optical axis of the direct-light panels is set vertically downward.
[0011] The second light-emitting component and the third light-emitting component are both installed on the bottom side of the fixed base plate; the second light-emitting component includes at least three first tilted lamp panels, which emit light to the right at an angle; the third light-emitting component includes at least three second tilted lamp panels, which emit light to the left at an angle.
[0012] Optionally, a first inclined light panel or a second inclined light panel may be provided between two adjacent direct light panels.
[0013] Optionally, the second light-emitting component and the third light-emitting component are symmetrical about a set vertical symmetry plane, and the light-emitting axis of the direct-light panel is parallel to the set vertical symmetry plane.
[0014] Optionally, the angle between the light-emitting axis of the first tilted lamp panel and the horizontal plane is 45°, the angle between the light-emitting axis of the second tilted lamp panel and the horizontal plane is 45°, and the light-emitting axes of the first tilted lamp panel and the second tilted lamp panel are perpendicular.
[0015] Optionally, the direct light panel, the first inclined light panel, and the second inclined light panel have the same structure;
[0016] The direct-light panel includes a substrate and an LED lamp bead mounted on the substrate.
[0017] Optionally, a plurality of strip-shaped protrusions are provided at intervals on one side of the bottom of the fixed base plate;
[0018] The direct light panel is mounted on the strip protrusion, the first inclined light panel is mounted in the strip groove between two adjacent strip protrusions, and the second inclined light panel is mounted in the strip groove between two adjacent strip protrusions.
[0019] Optionally, the direct-light panel is glued to the strip-shaped protrusion;
[0020] The strip groove is provided with an insertion slot, and the first or second tilted lamp plate can be detachably inserted into the insertion slot.
[0021] Optionally, a focusing rod is installed on one side of the bottom of the fixed base plate, and the center line of the focusing rod is perpendicular to the light output axis of the direct light panel.
[0022] A detection device includes a lighting device as described in any of the preceding claims.
[0023] Optionally, the detection device further includes a conveying device for conveying the workpiece, the conveying device being used to drive the workpiece to move horizontally, and the direction of movement of the workpiece being perpendicular to the light output axis of the direct light panel.
[0024] Compared with the prior art, the present invention has the following beneficial effects:
[0025] The lighting device provided by this utility model has a first light-emitting component, a second light-emitting component, and a third light-emitting component installed on one side of the bottom of a fixed base plate. This allows the refracting lamp plate to emit light vertically downwards, the first tilting lamp plate to emit light tilted to the right, and the second tilting lamp plate to emit light tilted to the left. This enables the surface defects on the workpiece surface in various extending directions to be better displayed, avoiding the situation where local surface defects are hidden, and effectively improving the detection accuracy.
[0026] 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
[0027] 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.
[0028] Figure 1 This is an installation diagram of the lighting device provided in this embodiment of the utility model;
[0029] Figure 2 This is a schematic diagram of the light output of the lighting device provided in this embodiment of the utility model;
[0030] Figure 3 This is a schematic diagram of the installation structure of the lighting device provided in this embodiment of the utility model;
[0031] Figure 4 This is a front view schematic diagram of another lighting device provided in an embodiment of this utility model.
[0032] Reference numerals in the attached diagram: 1. Fixed base plate; 101. Strip protrusion; 2. Direct light panel; 3. First inclined light panel; 4. Second inclined light panel; 5. Focusing rod; 100. Setting vertical symmetry plane. Detailed Implementation
[0033] 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.
[0034] 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.
[0035] 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.
[0036] 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.
[0037] 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.
[0038] 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.
[0039] 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.
[0040] 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.
[0041] 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.
[0042] Example 1
[0043] In view of the aforementioned deficiencies in existing lighting 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 technology that can overcome the deficiencies in the existing technology and make the lighting device more practical. After continuous research, design, and repeated prototype production and improvement, this utility model with real practical value has finally been created.
[0044] Please refer to Figures 1 to 4 This utility model provides a lighting device, including a fixed base plate 1; a first light-emitting component, installed on the bottom side of the fixed base plate 1, the first light-emitting component including at least three direct light panels 2, and the light-emitting axis of the direct light panels 2 is vertically downward; a second light-emitting component and a third light-emitting component, both installed on the bottom side of the fixed base plate 1; the second light-emitting component including at least three first tilted light panels 3, the first tilted light panels 3 emitting light tilted to the right; the third light-emitting component including at least three second tilted light panels 4, the second tilted light panels 4 emitting light tilted to the left.
[0045] In this embodiment, the lighting device has a first light-emitting component that emits light downwards, a second light-emitting component that tilts to the right and emits light downwards, and a third light-emitting component that tilts to the left and emits light downwards, so that the surface of the workpiece is simultaneously irradiated by light from multiple angles, making it easier to detect surface defects extending in various directions.
[0046] It should be noted that the direct light panel 2, the first inclined light panel 3, and the second inclined light panel 4 have the same structure; the direct light panel 2 includes a substrate and an LED bead mounted on the substrate. The direct light panels 2 are arranged at intervals, the first inclined light panels 3 are arranged at intervals, and the second inclined light panels 4 are arranged at intervals, which makes the illumination more uniform and more conducive to the detection of surface defects of the workpiece.
[0047] Optionally, a first inclined light panel 3 or a second inclined light panel 4 may be provided between two adjacent direct light panels 2. This can save installation space, increase the brightness of the light output of the lighting device, and make the size of the lighting device smaller.
[0048] Optionally, the second and third light-emitting components are symmetrical about a set vertical symmetry plane 100, and the light-emitting axis of the direct-light panel 2 is parallel to the set vertical symmetry plane 100. The symmetry of the second and third light-emitting components about the set vertical symmetry plane 100 can make the light effect illuminating the workpiece surface basically symmetrical, and the area to be inspected on the workpiece can receive more uniform and bright illumination, which is convenient for camera to take pictures and inspect.
[0049] Optionally, the angle between the light-emitting axis of the first tilted lamp panel 3 and the horizontal plane is 45°, the angle between the light-emitting axis of the second tilted lamp panel 4 and the horizontal plane is 45°, and the light-emitting axes of the first tilted lamp panel 3 and the second tilted lamp panel 4 are perpendicular. Figure 2 After the light from the direct light panel 2, the first inclined light panel 3, and the second inclined light panel 4 is emitted, it is focused by the focusing rod 5 at the bottom of the fixed base plate 1, and then the light continues to be projected downwards onto the surface of the workpiece. The centerline of the focusing rod 5 is perpendicular to the light-emitting axis of the direct light panel 2. In this embodiment, the angle between the light-emitting axis of the first inclined light panel 3 and the horizontal plane is 45°, and the angle between the light-emitting axis of the second inclined light panel 4 and the horizontal plane is also 45°. The light rays are projected intersectingly onto the workpiece surface, thus making surface defects of the workpiece more clearly visible. It should also be noted that the cross-section of the focusing rod 5 is circular.
[0050] Optionally, a plurality of strip-shaped protrusions 101 are spaced apart on one side of the bottom of the fixed base plate 1; the direct-light panel 2 is mounted on the strip-shaped protrusions 101, the first inclined light panel 3 is mounted in the strip-shaped groove between two adjacent strip-shaped protrusions 101, and the second inclined light panel 4 is mounted in the strip-shaped groove between two adjacent strip-shaped protrusions 101. In this embodiment, the installation positions are distinguished by the strip-shaped protrusions 101 and the strip-shaped grooves, thereby allowing the first light-emitting assembly, the second light-emitting assembly, and the third light-emitting assembly to be mounted more orderly on one side of the bottom of the fixed base plate 1. It should also be noted that the strip-shaped grooves facilitate the installation of the first inclined light panel 3 or the second inclined light panel 4.
[0051] Optionally, the direct-light panel 2 is glued to the strip-shaped protrusion 101; the strip-shaped groove is provided with an insertion slot, into which the first inclined light panel 3 or the second inclined light panel 4 can be detachably inserted. Specifically, the first inclined light panel 3 or the second inclined light panel 4 can be detached and installed, so it can be directly disassembled and replaced during maintenance, making maintenance relatively simple.
[0052] Example 2
[0053] This embodiment discloses a detection device, including a lighting device as described in Embodiment 1.
[0054] Optionally, the detection device also includes a conveying device for conveying the workpiece, the conveying device being used to drive the workpiece to move horizontally, and the direction of movement of the workpiece being perpendicular to the light output axis of the direct light panel 2.
[0055] The detection device also includes a camera, which is positioned next to the lighting device.
[0056] 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 lighting device, characterized in that, include: Fixed base plate (1); The first light-emitting component is installed on the bottom side of the fixed base plate (1). The first light-emitting component includes at least three direct light panels (2), and the light-emitting optical axis of the direct light panels (2) is set vertically downward. The second light-emitting component and the third light-emitting component are both installed on the bottom side of the fixed base plate (1); the second light-emitting component includes at least three first tilted lamp plates (3), which emit light to the right at an angle; the third light-emitting component includes at least three second tilted lamp plates (4), which emit light to the left at an angle.
2. The lighting device according to claim 1, characterized in that, A first inclined light panel (3) or a second inclined light panel (4) is provided between two adjacent direct light panels (2).
3. The lighting device according to claim 2, characterized in that, The second light-emitting component and the third light-emitting component are symmetrical about a set vertical symmetry plane (100), and the light-emitting optical axis of the direct light panel (2) is parallel to the set vertical symmetry plane (100).
4. The lighting device according to claim 1, characterized in that, The light output axis of the first tilted lamp plate (3) is at an angle of 45° to the horizontal plane, and the light output axis of the second tilted lamp plate (4) is at an angle of 45° to the horizontal plane. The light output axis of the first tilted lamp plate (3) and the light output axis of the second tilted lamp plate (4) are perpendicular to each other.
5. The lighting device according to claim 1, characterized in that, The direct light panel (2), the first inclined light panel (3), and the second inclined light panel (4) have the same structure; The direct-light panel (2) includes a substrate and an LED bead mounted on the substrate.
6. The lighting device according to claim 1, characterized in that, The bottom side of the fixed base plate (1) is provided with a number of strip-shaped protrusions (101) at intervals; The direct light panel (2) is installed on the strip protrusion (101), the first inclined light panel (3) is installed in the strip groove between two adjacent strip protrusions (101), and the second inclined light panel (4) is installed in the strip groove between two adjacent strip protrusions (101).
7. The lighting device according to claim 6, characterized in that, The direct-light panel (2) is glued and fixed to the strip protrusion (101); The strip groove is provided with an insertion slot, and the first inclined lamp plate (3) or the second inclined lamp plate (4) can be detachably inserted into the insertion slot.
8. The lighting device according to claim 1, characterized in that, A focusing rod (5) is installed on one side of the bottom of the fixed base plate (1), and the center line of the focusing rod (5) is perpendicular to the light output axis of the direct light plate (2).
9. A detection device, characterized in that, It includes a lighting device as described in any one of claims 1 to 8.
10. The detection device according to claim 9, characterized in that, It also includes a conveying device for conveying the workpiece, the conveying device being used to drive the workpiece to move horizontally, and the direction of movement of the workpiece being perpendicular to the light output axis of the direct light panel (2).