Visual inspection device
By setting reflectors and beam splitters on both sides of the light-blocking component, the light-blocking component is bypassed, enabling the inspection camera to perform normal inspections of both sides of the workpiece surface, thus solving the problem of poor inspection results.
Patent Information
- Application Number
- CN202422859115.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-11-21
AI Technical Summary
The detection camera cannot be properly positioned behind the light source due to the presence of a light-blocking component. When the light source, which affects the detection effect, is positioned on the light-emitting side of the light source, the detection effect is poor.
The first and second reflectors are respectively set on both sides of the light-blocking component. The imaging light from one side and the other side of the workpiece is reflected into the inspection camera by the beam splitter, bypassing the light-blocking component for inspection.
The inspection camera was able to take pictures of both sides of the workpiece normally, avoiding the obstruction of light-blocking components and ensuring the inspection effect.
Smart Images
Figure CN223650448U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to visual inspection technical field especially relates to a visual inspection device. BACKGROUND
[0002] With the progress of society and the improvement of people's living standards, the requirements for various products are not only limited to internal functions and performance, but also increasingly improve the appearance requirements of products. In order to ensure the appearance quality of products, the appearance detection of products is needed before leaving the factory.
[0003] In the actual detection process, there may be a light blocking piece on the back side of the detection camera. The existence of the light blocking piece makes the detection camera unable to be set on the back side of the light source, and the camera set on the light-emitting side of the light source may affect the detection effect.
[0004] Therefore, it is necessary to design a visual inspection device to enable the detection camera to bypass the light blocking piece to detect the workpiece.
[0005] The above information is given as background information only to assist in understanding the present disclosure, and does not determine or acknowledge whether any of the above content can be used as prior art with respect to the present disclosure. UTILITY MODEL CONTENT
[0006] The utility model provides a kind of visual inspection device, to enable the detection camera to bypass the light blocking piece to detect the workpiece.
[0007] To achieve the above purpose, the utility model provides the following technical scheme:
[0008] A kind of visual inspection device, comprising first light source, first reflector, second reflector, beam splitter, detection camera and the light blocking piece located at the back side of the first light source;
[0009] The first light source emits light to illuminate the workpiece;The first reflector and the second reflector are respectively arranged on the two sides opposite to the light blocking piece;The beam splitter is arranged on the back side of the light blocking piece;
[0010] The first imaging light reflected after one side of the workpiece is irradiated, is reflected by the first reflector and penetrates the beam splitter to enter the detection camera;The second imaging light reflected after the other side of the workpiece is irradiated, is reflected by the second reflector and the beam splitter to enter the detection camera.
[0011] Optionally, the visual inspection device further comprises second light source and third light source for illuminating the workpiece;The second light source and the third light source are respectively arranged at the two ends opposite to the workpiece to be detected;
[0012] The second light source and the first light source have a first interval, and the light energy reflected by one side of the workpiece passes through the first interval; the third light source and the first light source have a second interval, and the light energy reflected by the other side of the workpiece passes through the second interval.
[0013] Optionally, the second light source and the third light source are located on the light emitting side of the first light source.
[0014] The second light source is higher than the first light source, and the third light source is lower than the first light source.
[0015] Optionally, the first reflector is located above and left of the second reflector, and the second reflector does not exceed the light emitting end surface of the first light source.
[0016] Optionally, the visual detection device further comprises a third reflector.
[0017] The third reflector can reflect the first imaging light to the detection camera, and can reflect the second imaging light to the detection camera.
[0018] Optionally, the light emitting component in the first light source is an LED lamp bead.
[0019] Optionally, the light emitted by the first light source is parallel light.
[0020] Optionally, the first light source is arc-shaped, the light emitting surface of the first light source is arc-shaped recessed, and the light emitting surface faces the workpiece to be detected.
[0021] Compared with the prior art, the visual detection device has the following beneficial effects:
[0022] The visual detection device provided by the utility model, through the first reflector reflecting the image of one side of the workpiece, the second reflector reflecting the image of the other side of the workpiece, and the image of one side of the workpiece passing through the light splitter to enter the detection camera and the image of the other side of the workpiece being reflected by the light splitter to enter the detection camera, in the embodiment, the first reflector, the second reflector and the light splitter are cooperated to bypass the light blocking member on the back side of the light source, so that the detection camera can normally take a photo of the workpiece for detection.
[0023] The utility model has other characteristics and advantages, which will be obvious from the drawings and subsequent specific embodiments incorporated herein or will be described in detail in the drawings and subsequent specific embodiments incorporated herein, which are used together to explain the specific principles of the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.
[0025] Figure 1 is a mounting structure schematic diagram of a visual detection device provided by the embodiment of the present application.
[0026] Figure 2 is a mounting structure schematic diagram of another visual detection device provided by the embodiment of the present application.
[0027] Reference signs: 1, first light source; 2, first reflector; 3, second reflector; 4, beam splitter; 5, detection camera; 6, second light source; 7, third light source; 101, first interval; 102, second interval; 8, third reflector; 9, light shielding piece. DETAILED DESCRIPTION
[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.
[0029] In this paper, the term "embodiment" means that the specific features, structures or characteristics described in combination with the embodiment can be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, and does not particularly limit its independence or association with other embodiments. In principle, in this application, as long as there is no technical contradiction or conflict, each technical feature mentioned in each embodiment can be combined in any way to form a corresponding implementable technical solution.
[0030] Unless otherwise defined, the meanings of the technical terms used in this paper are the same as those commonly understood by those skilled in the art to which the present application belongs; the use of related terms in this paper is only for the purpose of describing specific embodiments, and is not intended to limit the present application.
[0031] In the description of the present application, the word "and / or" is a description of the logical relationship between the objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this paper generally represents that the associated objects before and after are a "or" logical relationship.
[0032] In the present application, the terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual number, primary or secondary, or order relationship between the entities or operations.
[0033] In the present application, the "includes", "contains", "has", or other similar expressions used in the statements are intended to cover non-exclusive inclusion, and the expressions do not exclude the presence of additional elements in the process, method or product comprising the elements, so that the process, method or product comprising a series of elements can not only include those defined elements, but also include other elements not explicitly listed, or also include elements inherent to such process, method or product.
[0034] As the same understanding as in the "Guidelines for Examination", in the present application, the expressions such as "greater than", "less than", "exceed" are understood as not including the number; the expressions such as "above", "below", "within" are understood as including the number. In addition, in the description of the embodiments of the present application, the meaning of "multiple" is more than two (including two), and similar expressions related to "multiple" are also understood in this way, for example, "multiple groups", "multiple times", etc., unless otherwise explicitly specified.
[0035] In the description of the embodiments of the present application, the spatial-related expressions used, such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "perpendicular", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. The indicated orientation or position relationship is based on the orientation or position relationship shown in the specific embodiment or the drawing, and is only for the convenience of describing the specific embodiments of the present application or for the reader to understand, and does not indicate or imply that the indicated device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.
[0036] Unless otherwise explicitly specified or limited, in the description of the embodiments of the present application, the terms "mount", "connect", "connect", "fix", "set", etc. should be understood in a broad sense. For example, the "connection" can be a fixed connection, or a detachable connection, or an integral setting; it can be a mechanical connection, or an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art to which the present application belongs, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.
[0037] In view of the defects of the existing visual detection device, the applicant, based on rich practical experience and professional knowledge in designing and manufacturing such products for many years, actively studies and innovates, and cooperates with the use of theories, to create a technology that can solve the defects in the prior art, so that the visual detection device is more practical. After continuous research, design, and repeated trial of samples and improvement, the practical new type is finally created.
[0038] The embodiment of the utility model provides a kind of visual detection device, including first light source 1, first reflector 2, second reflector 3, beam splitter 4 and detection camera 5, the installation position of each component please refer to Figure 1 .
[0039] First light source 1 is used to emit light to illuminate workpiece;First reflector 2 and second reflector 3 are respectively arranged on the opposite sides of light blocking piece 9;Beam splitter 4 is arranged on the back side of light blocking piece 9;It needs to be explained here that first reflector 2 is on the top side of first light source 1, second reflector 3 is on the bottom side of first light source 1, and light blocking piece 9 is located between first reflector 2 and second reflector 3.In practical application, the specific position of first reflector 2 and second reflector 3 should be adjusted according to the specific size of light blocking piece 9.
[0040] In actual detection process, the first imaging light reflected after one side of workpiece is irradiated, is reflected by first reflector 2 and then penetrates beam splitter 4 to enter detection camera 5, at this time detection camera 5 detects the surface of one side of workpiece;The second imaging light reflected after the other side of workpiece is irradiated, is reflected by second reflector 3 and beam splitter 4 to enter detection camera 5, at this time detection camera 5 can detect the surface of the other side of workpiece, so that the purpose of normal detection of workpiece surface defect can be achieved.
[0041] It needs to be supplemented that light blocking piece 9 does not block first imaging light and second imaging light.
[0042] As shown in Figure 1 , first reflector 2 and second reflector 3 can be horizontally arranged, and the mirror surface faces light blocking piece 9.Light blocking piece 9 can be a column or a support plate, etc.
[0043] Optionally, the visual detection device further includes second light source 6 and third light source 7 for illuminating workpiece;Second light source 6 and third light source 7 are respectively arranged on the opposite ends of workpiece to be detected;Second light source 6 and first light source 1 have first detection, and the light reflected on one side of workpiece can pass through first interval 101;Third light source 7 and first light source 1 have second interval 102, and the light reflected on the other side of workpiece can pass through second interval 102.Second light source 6 is used to better illuminate the surface of one side of workpiece, and third light source 7 is used to better illuminate the surface of the other side of workpiece.
[0044] Optionally, the second light source 6 and the third light source 7 are both located on the light emitting side of the first light source 1; the second light source 6 is higher than the first light source 1, and the third light source 7 is lower than the first light source 1. At this time, the first side of the workpiece close to the first light source 1, the second side close to the second light source 6 and the third side close to the third light source 7 can all be well illuminated.
[0045] Optionally, the first reflector 2 is located on the upper left of the second reflector 3, and the second reflector 3 does not exceed the light emitting end surface of the first light source 1. The first reflector 2 is located on the upper left of the second reflector 3, which can better obtain the images of different parts of the workpiece, and make the position of the beam splitter 4 as close to the light blocking piece 9 as possible.
[0046] Optionally, as Figure 2 The visual detection device further comprises a third reflector 8; the third reflector 8 can reflect the first imaging light to the detection camera 5, and can reflect the second imaging light to the detection camera 5. The third reflector 8 can be set to make the detection camera 5 horizontally set, without tilting the detection camera 5, so that the installation of the detection camera 5 is more convenient. In addition, the detection camera 5 is horizontally set, which is not easy to be damaged and has a longer service life.
[0047] Optionally, the light emitting component in the first light source 1 is an LED lamp bead.
[0048] Optionally, the light emitted by the first light source 1 is parallel light. The light emitted by the first light source 1 can also be diffuse light.
[0049] Optionally, the first light source 1 is arc-shaped, the light emitting surface of the first light source 1 is arc-shaped recessed, and the light emitting surface faces the workpiece to be detected. The light emitting surface of the first light source 1 is arc-shaped recessed, which can illuminate one side surface of the workpiece and the other side surface of the workpiece.
[0050] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of the present application, they do not limit the patent protection scope of the present application. Any equivalent structure or equivalent flow replacing or modifying the content described in the specification and drawings of the present application based on the essential concept of the present application, and directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, etc. are all included in the patent protection scope of the present application.
Claims
1. A vision inspection apparatus, characterized by, The first light source (1), the first reflector (2), the second reflector (3), the beam splitter (4), the detection camera (5) and the light blocking member (9) located at the back side of the first light source (1) are included. The first light source (1) emits light to illuminate the workpiece; the first reflector (2) and the second reflector (3) are respectively arranged on the opposite sides of the light blocking member (9); and the beam splitter (4) is arranged at the back side of the light blocking member (9). The first imaging light reflected after the one side of the workpiece is illuminated is reflected by the first reflector (2) and then penetrates the beam splitter (4) to enter the detection camera (5); and the second imaging light reflected after the other side of the workpiece is illuminated is reflected by the second reflector (3) and the beam splitter (4) to enter the detection camera (5).
2. The vision inspection apparatus of claim 1, wherein The second light source (6) and the third light source (7) for illuminating the workpiece are further included; the second light source (6) and the third light source (7) are respectively arranged at the opposite ends of the workpiece to be detected. The first interval (101) is provided between the second light source (6) and the first light source (1), and the light reflected by the one side of the workpiece can pass through the first interval (101); and the second interval (102) is provided between the third light source (7) and the first light source (1), and the light reflected by the other side of the workpiece can pass through the second interval (102).
3. The vision inspection apparatus of claim 2, wherein The second light source (6) and the third light source (7) are both located at the light emitting side of the first light source (1). The second light source (6) is higher than the first light source (1), and the third light source (7) is lower than the first light source (1).
4. The vision inspection apparatus of claim 1, wherein The first reflector (2) is located at the upper left of the second reflector (3), and the second reflector (3) does not exceed the light emitting end surface of the first light source (1).
5. The vision inspection apparatus of claim 1, wherein The third reflector (8) is further included. The third reflector (8) can reflect the first imaging light to the detection camera (5), and can reflect the second imaging light to the detection camera (5).
6. The vision inspection apparatus of claim 1, wherein The light emitting component in the first light source (1) is an LED lamp bead.
7. The vision inspection apparatus of claim 1, wherein The light emitted by the first light source (1) is parallel light.
8. The vision inspection apparatus of claim 1, wherein The first light source (1) is in an arc shape, the light emitting surface of the first light source (1) is recessed in an arc shape, and the light emitting surface faces the workpiece to be detected.