Light source
By using symmetrically arranged light source components and guide rail drive devices, the size of the light spot can be flexibly adjusted, solving the problem that existing light sources cannot adapt to workpieces of different sizes, and improving the applicability and accuracy of the inspection.
Patent Information
- Application Number
- CN202422961335.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-02
AI Technical Summary
The existing light source has a fixed spot size, which cannot adapt to workpieces of different sizes, resulting in poor detection results.
A light source was designed, including first and second light-emitting components with identical structures and symmetrical arrangement. The size of the light spot is adjusted by a sliding block and an arc-shaped reflective surface. The light spot can be flexibly adjusted by combining horizontal and vertical guide rails and a driving device.
It enables effective inspection of workpieces of different sizes, has a wide range of applications, and the spot size is adjustable, which improves the accuracy and flexibility of inspection.
Smart Images
Figure CN223512042U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machine vision inspection technology, and in particular to a light source. Background Technology
[0002] Light source is one of the important components in machine vision inspection. The illumination effect of the light source has a great impact on the imaging effect of the inspection camera. A suitable light source can effectively improve the accuracy of inspection.
[0003] The position of the existing light source to the inspection station is generally fixed, and the range of the light spot illuminating the workpiece is roughly fixed. It can only inspect workpieces of a specific size. Once the volume of the workpiece increases, the light spot may not be able to cover the entire top surface of the workpiece, thus affecting the actual inspection effect.
[0004] Therefore, it is necessary to design a light source that can detect different workpieces with a wider range of sizes.
[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 light source capable of detecting different workpieces with a wider size range.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A light source includes a first light-emitting component and a second light-emitting component;
[0009] A detection channel is formed between the first light-emitting component and the second light-emitting component. The first light-emitting component and the second light-emitting component have the same structure and are symmetrical about the detection channel.
[0010] The first light-emitting component includes a sliding block that can slide back and forth in a set direction and a lamp plate mounted on the sliding block. The sliding block has a concave arc-shaped reflective surface. The lamp plate faces away from the detection channel and emits light towards the arc-shaped reflective surface. The arc-shaped reflective surface reflects the light emitted by the lamp plate to the bottom of the detection channel.
[0011] Optionally, the sliding block is semi-circular. When the ends of the sliding blocks of the first light-emitting component and the second light-emitting component are connected, the two sliding blocks combine to form a ring structure, and the arc-shaped reflective surfaces on the two sliding blocks are smoothly connected.
[0012] Optionally, an opaque layer is provided on the back of the lamp panel.
[0013] Optionally, the light source also includes a horizontal guide rail, a vertical guide rail, and a lifting drive device;
[0014] The sliding block is slidably mounted on the horizontal guide rail, the horizontal guide rail is slidably mounted on the vertical guide rail, and the lifting drive device is used to drive the horizontal guide rail to move up and down along the vertical guide rail.
[0015] Optionally, the light source further includes a lateral driving device, which is used to drive the sliding block to slide along the lateral guide rail;
[0016] Two lateral drive devices are provided, each connected to one of the two sliding blocks, and the two lateral drive devices are symmetrically arranged about the detection channel.
[0017] Optionally, the sliding block is provided with an insertion groove, the first end of the lamp plate is inserted into the insertion groove, and the opposite two sides of the insertion groove are provided with elastic extrusion layers, and the opposite two sides of the lamp plate are respectively extruded with two layers of the elastic extrusion layers.
[0018] Optionally, two transverse guide rails are provided at intervals, and the two transverse guide rails are parallel to each other;
[0019] Two vertical guide rails are provided, and connecting sliders are fixedly connected to both ends of the horizontal guide rails. The connecting sliders are slidably installed on the vertical guide rails.
[0020] Optionally, the arc-shaped reflective surface is curved around the centerline of the detection channel.
[0021] Compared with the prior art, the present invention has the following beneficial effects:
[0022] The light source provided by this utility model, by making the first and second light-emitting components have identical structures and symmetrically arranged about the detection channel, allows both components to be adjusted in a set direction. This alters the illumination area of the light reflected from the concave arc-shaped reflective surface, thus changing the actual size of the light spot and facilitating the detection of workpieces with different top surface areas. The light source of this embodiment can detect workpieces with both small and large top surface areas, making it widely applicable.
[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 light source provided in an embodiment of the present utility model;
[0026] Figure 2 This is a cross-sectional schematic diagram of the light source provided in an embodiment of this utility model;
[0027] Figure 3 This is a schematic diagram of the installation structure of the sliding block and the lamp plate provided in an embodiment of this utility model.
[0028] Reference numerals: 1. First light-emitting component; 11. Sliding block; 101. Arc-shaped reflective surface; 1101. Insertion slot; 1102. Elastic extrusion layer; 12. Lamp panel; 1201. Opaque layer; 2. Second light-emitting component; 3. Horizontal guide rail; 4. Vertical guide rail; 41. Connecting slider; 5. Horizontal drive device; 100. Detection channel. Detailed Implementation
[0029] 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.
[0030] 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.
[0031] 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.
[0032] 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.
[0033] 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.
[0034] 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.
[0035] 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.
[0036] 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.
[0037] 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.
[0038] 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, has actively conducted research and innovation in order to create a technology that can overcome the defects in the existing technology and make the light source more practical. After continuous research, design, and repeated prototype production and improvement, this utility model with real practical value has finally been created.
[0039] Please refer to Figures 1 to 3 This utility model provides a light source, including a first light-emitting component 1 and a second light-emitting component 2.
[0040] A detection channel 100 is formed between the first light-emitting component 1 and the second light-emitting component 2. The first light-emitting component 1 and the second light-emitting component 2 have identical structures and are symmetrically arranged about the center line of the detection channel 100. The workpiece is placed directly below the detection channel 100 for detection.
[0041] The first light-emitting component 1 includes a sliding block 11 that can slide back and forth in a set direction and a lamp plate 12 mounted on the sliding block 11. In this embodiment, the set direction is horizontal. The sliding block 11 has a concave arc-shaped reflective surface 101, which can make the light spot more focused and effectively improve the lighting effect. The lamp plate 12 faces away from the detection channel 100 and emits light into the arc-shaped reflective surface 101. The arc-shaped reflective surface 101 reflects the light emitted by the lamp plate 12 to the top surface of the workpiece at the bottom of the detection channel 100.
[0042] In this embodiment, the arc-shaped reflective surface 101 has a light-focusing effect. When the first light-emitting component 1 and the second light-emitting component 2 are close to each other, the light spots formed by the two are projected onto the top surface of the workpiece at the bottom of the detection channel, and the total area of the light spot is relatively small. When it is necessary to increase the area of the light spot, the distance between the first light-emitting component 1 and the second light-emitting component 2 can be increased, thereby reasonably increasing the area of the light spot and adapting to the detection of workpieces with larger volumes.
[0043] It should be further noted that the positions of the first light-emitting component 1 and the second light-emitting component 2 can be adjusted independently. This does not affect the symmetrical arrangement of the first light-emitting component 1 and the second light-emitting component 2 with respect to the detection channel 100, because the position of the detection channel 100 also changes with the position of the first light-emitting component 1 and the second light-emitting component 2. Therefore, in this embodiment, the light source can also illuminate the workpiece to the left or right, thereby improving the applicability of the light source.
[0044] Optionally, the sliding block 11 is semi-circular. When the ends of the sliding block 11 of the first light-emitting component 1 and the sliding block 11 of the second light-emitting component 2 are aligned, the two sliding blocks 11 combine to form a ring structure, and the arc-shaped reflective surfaces 101 on the two sliding blocks 11 are smoothly aligned. After the two arc-shaped reflective surfaces 101 are aligned, they form a ring surface that is connected end to end, and the ring surface is part of a sphere.
[0045] In this embodiment, the two arc-shaped reflective surfaces 101 are joined end to end, so that the light spot at the bottom of the detection channel 100 is minimized, providing the workpiece with the maximum brightness illumination effect.
[0046] Optionally, an opaque layer 1201 is provided on the back of the lamp board 12 to prevent the light emitted by the LED on the lamp board 12 from directly passing through the circuit board and entering the detection channel 100, which helps to improve the uniformity of illumination. The lamp board 12 includes a circuit board and an LED mounted on the circuit board.
[0047] Optionally, the light source also includes a horizontal guide rail 3, a vertical guide rail 4, and a lifting drive device; the sliding block 11 is slidably mounted on the horizontal guide rail 3, the horizontal guide rail 3 is slidably mounted on the vertical guide rail 4, and the lifting drive device is used to drive the horizontal guide rail 3 to move up and down along the vertical guide rail 4. The horizontal drive device 5 is electrically connected to the lifting drive device.
[0048] In this embodiment, the greater the distance between the first light-emitting component 1 and the second light-emitting component 2, the higher their heights, thus ensuring the light spot remains essentially circular and preventing significant uneven illumination in certain areas. Specifically, the greater the distance between the first light-emitting component 1 and the second light-emitting component 2, the higher the horizontal guide rail 3 is raised by the lifting drive device, resulting in greater heights for both components. Similarly, the closer the distance between the first light-emitting component 1 and the second light-emitting component 2, the lower their heights.
[0049] Optionally, the light source also includes a lateral driving device 5, which drives the sliding block 11 to slide along the lateral guide rail 3. Two lateral driving devices 5 are provided, each connected to one of the two sliding blocks 11, and are symmetrically arranged about the detection channel 100. Specifically, in this embodiment, the lateral driving devices 5 change and maintain the positions of the first light-emitting component 1 and the second light-emitting component 2. The lateral driving device 5 can be a cylinder, an electric telescopic device, or other telescopic device.
[0050] Optionally, the sliding block 11 is provided with an insertion slot 1101. The first end of the lamp plate 12 is inserted into the insertion slot 1101. Elastic compression layers 1102 are provided on both opposite sides of the insertion slot 1101. Two layers of elastic compression layers 1102 are pressed against the opposite sides of the lamp plate 12, and the two layers of elastic compression layers 1102 elastically clamp the end of the lamp plate 12. In this embodiment, the lamp plate 12 can be directly plugged in and removed, making the assembly of the lamp plate 12 more convenient. It should be noted that the elastic compression layer 1102 is made of a high-temperature resistant material and will not...
[0051] Optionally, two horizontal guide rails 3 are spaced apart and are parallel to each other; two vertical guide rails 4 are provided, and connecting sliders 41 are fixedly connected to both ends of the horizontal guide rails 3. The connecting sliders 41 are slidably mounted on the vertical guide rails 4. In this embodiment, the lifting drive device drives the connecting sliders 41 to slide on the vertical guide rails 4, thereby changing the height of the horizontal guide rails 3.
[0052] Optionally, the arc-shaped reflective surface 101 is curved around the centerline of the detection channel 100. The arc-shaped reflective surface 101 is a diffuse reflective surface.
[0053] 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 light source, characterized in that, It includes a first light-emitting component (1) and a second light-emitting component (2); A detection channel (100) is formed between the first light-emitting component (1) and the second light-emitting component (2). The first light-emitting component (1) and the second light-emitting component (2) have the same structure and are symmetrical about the detection channel (100). The first light-emitting component (1) includes a sliding block (11) that can slide back and forth in a set direction and a lamp plate (12) mounted on the sliding block (11). The sliding block (11) has a concave arc-shaped reflective surface (101). The lamp plate (12) faces away from the detection channel (100) and emits light towards the arc-shaped reflective surface (101). The arc-shaped reflective surface (101) reflects the light emitted by the lamp plate (12) to the bottom of the detection channel (100).
2. The light source according to claim 1, characterized in that, The sliding block (11) is semi-circular. When the ends of the sliding block (11) of the first light-emitting component (1) and the sliding block (11) of the second light-emitting component (2) are connected, the two sliding blocks (11) are combined to form a ring structure, and the arc-shaped reflective surfaces (101) on the two sliding blocks (11) are smoothly connected.
3. The light source according to claim 1, characterized in that, An opaque layer (1201) is provided on the back of the lamp panel (12).
4. The light source according to claim 1, characterized in that, It also includes a horizontal guide rail (3), a vertical guide rail (4), and a lifting drive device; The sliding block (11) is slidably mounted on the horizontal guide rail (3), the horizontal guide rail (3) is slidably mounted on the vertical guide rail (4), and the lifting drive device is used to drive the horizontal guide rail (3) to rise and fall along the vertical guide rail (4).
5. The light source according to claim 4, characterized in that, It also includes a lateral drive device (5), which is used to drive the sliding block (11) to slide along the lateral guide rail (3); There are two lateral drive devices (5), which are respectively connected to the two sliding blocks (11) and are symmetrically arranged about the detection channel (100).
6. The light source according to claim 1, characterized in that, The sliding block (11) is provided with an insertion groove (1101), and the first end of the lamp plate (12) is inserted into the insertion groove (1101). The two opposite sides of the insertion groove (1101) are provided with elastic extrusion layers (1102), and the two opposite sides of the lamp plate (12) are respectively extruded with two layers of elastic extrusion layers (1102).
7. The light source according to claim 4, characterized in that, The transverse guide rails (3) are provided at intervals of two, and the two transverse guide rails (3) are parallel to each other; Two vertical guide rails (4) are provided, and connecting sliders (41) are fixedly connected to both ends of the horizontal guide rail (3). The connecting sliders (41) are slidably installed on the vertical guide rails (4).
8. The light source according to claim 1, characterized in that, The arc-shaped reflective surface (101) is curved around the center line of the detection channel (100).