Visual inspection device with adjustable light path
By introducing adjustable light source components and light spectroscopes into the visual detection device, the problem of fixed light source direction is solved, flexible adjustment of the optical path is achieved, the detection range is expanded, and suitable for a variety of workpieces.
Patent Information
- Application Number
- CN202421297802.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-06-06
AI Technical Summary
The light source of the existing vision detection device can only emit light in the set direction, resulting in the fixed lighting area, poor applicability, and the inability to detect workpieces with a larger specification range.
A visual detection device with adjustable optical path is designed. Through an inclined light spectrometer and an adjustable light source assembly, including a rotatable lens assembly and a lamp panel, the flexible adjustment of the light direction is achieved to meet the detection needs of different workpieces.
By adjusting the light direction, the scope of application of the visual inspection device is expanded, the detection needs of different workpieces can be met, and the applicability is improved.
Smart Images
Figure CN223166571U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vision detection, in particular to a vision detection device with adjustable optical path. Background Art
[0002] The current vision detection device includes a light source and a beam splitter. The light source can only emit light in a set direction, and then the beam splitter reflects the light emitted by the light source onto the workpiece. The light reflected by the workpiece passes through the beam splitter and enters the detection camera, so as to detect the surface defects of the workpiece. This technology has the following problems: the light source can only emit light in a set direction, that is, the illumination area cannot be changed after being refracted by the beam splitter, resulting in that the vision detection device is only suitable for detecting workpieces within a relatively small specification range, and the applicability is poor.
[0003] In view of this, a vision detection device with adjustable optical path is designed to further improve the applicable range of the vision detection device.
[0004] The above information is given as background information only to assist in understanding the present disclosure, and does not determine or admit whether any of the above content can be used as the prior art relative to the present disclosure. Summary of the Utility Model
[0005] The utility model provides a vision detection device with adjustable optical path to further improve the applicable range of the vision detection device.
[0006] To achieve the above object, the utility model provides the following technical solutions:
[0007] A vision detection device with adjustable optical path, comprising:
[0008] A beam splitter, which is inclined.
[0009] A light source assembly, including a housing, a lamp board mounted on the housing, and a first lens assembly rotatably mounted on the housing at an adjustable angle; the light-emitting direction of the lamp board is a first direction, the first lens assembly can rotate around a first axis, and the first direction is perpendicular to the first axis; the light emitted by the lamp board passes through the first lens assembly and is projected onto the beam splitter, and is refracted by the beam splitter to the surface of the workpiece.
[0010] A detection camera, arranged on one side of the beam splitter, and the light reflected by the workpiece passes through the beam splitter and enters the detection camera.
[0011] Optionally, the light source assembly further includes a second lens assembly, the second lens assembly is mounted on the housing at an adjustable angle, and the lamp board, the first lens assembly and the second lens assembly are sequentially arranged at intervals along a set light-emitting direction;
[0012] The second lens assembly is located between the first lens assembly and the beam splitter.
[0013] Optionally, a first sliding groove is provided on the housing, the lamp board is slidably mounted in the first sliding groove, and a fastener for fixing the lamp board in the first sliding groove is provided on the housing.
[0014] Optionally, the first lens assembly includes a first lens body, a first lens fixing cylinder, and an angle adjustment knob;
[0015] The first lens body is installed in the first lens fixing cylinder, the angle adjustment knob is fixedly connected to the first lens fixing cylinder, and the angle adjustment knob is rotatably connected to the housing.
[0016] Optionally, the visual detection device with adjustable optical path further includes a light absorption plate, and the light absorption surface of the light absorption plate faces the lamp board; the beam splitter is located between the light absorption plate and the light source assembly.
[0017] Optionally, the visual detection device with adjustable optical path further includes a light absorption plate, the light absorption plate is an arc-shaped plate, and the concave surface of the arc-shaped plate faces the beam splitter.
[0018] Optionally, the beam splitter is inclined at 45°.
[0019] Optionally, a second sliding groove is provided on the housing, the first lens assembly is slidably mounted in the second sliding groove, and a threaded member for fixing the first lens assembly in the second sliding groove is installed on the housing.
[0020] Optionally, a light absorption coating is applied on the side surface of the light absorption plate close to the beam splitter.
[0021] Optionally, the second lens assembly can adjust the rotation angle around a second axis, the second axis is perpendicular to the first axis, and the second axis is perpendicular to the first direction.
[0022] Compared with the prior art, the present utility model has the following beneficial effects:
[0023] For the visual detection device with adjustable optical path provided by the present utility model, by rotating the first lens assembly with adjustable angle, the direction of the light emitted by the lamp board is changed, so that the final irradiation area of the light can be changed to a certain extent, and thus the lighting needs of different regions of different workpieces can be met, more workpiece appearance detection needs can be satisfied, and the applicability is better.
[0024] The present utility model has other characteristics and advantages, which will be apparent from the accompanying drawings incorporated herein and the subsequent detailed description, or will be described in detail in the accompanying drawings incorporated herein and the subsequent detailed description. These accompanying drawings and the detailed description are used together to explain the specific principles of the present utility model. Description of the Drawings
[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the accompanying drawings required for use in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.
[0026] Figure 1 It is a schematic installation structure diagram of a visual detection device with adjustable optical path provided by an embodiment of the present utility model;
[0027] Figure 2 It is a schematic installation structure diagram of another visual detection device with adjustable optical path provided by an embodiment of the present utility model;
[0028] Figure 3 It is a schematic structure diagram of a first lens assembly provided by an embodiment of the present utility model.
[0029] Reference numerals: 1, beam splitter; 2, light source assembly; 201, first sliding groove; 202, fastener; 203, second sliding groove; 204, threaded member; 21, housing; 22, lamp board; 23, first lens assembly; 231, first lens body; 232, first lens fixing cylinder; 233, angle adjustment knob; 24, second lens assembly; 3, detection camera; 4, light absorption plate. Detailed Description of the Embodiments
[0030] To describe in detail the possible application scenarios, technical principles, implementable specific solutions, achievable purposes and effects, etc. of the present application, the following will be described in detail with reference to the specific embodiments listed and the accompanying drawings. The embodiments recorded herein are only used to more clearly illustrate the technical solutions of the present application, so they are only examples and cannot be used to limit the protection scope of the present application.
[0031] Reference to "embodiment" in this document means that the specific features, structures or characteristics described in connection with the embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing at various positions in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in this application, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.
[0032] Unless otherwise defined, the meanings of the technical terms used in this document are the same as those commonly understood by those skilled in the technical field to which this application belongs; the use of the relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.
[0033] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that there can be three relationships. For example, A and / or B means: there is A, there is B, and there is both A and B at the same time. In addition, the character " / " in this document generally represents an "or" logical relationship between the associated objects before and after.
[0034] In this application, terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantitative, primary or secondary, or sequential relationships between these entities or operations.
[0035] Without more limitations, in this application, the expressions "comprising", "including", "having" or other similar expressions used in the statement are intended to cover non-exclusive inclusion. These expressions do not exclude that there may be additional elements in the process, method or product including the said elements, so that the process, method or product including a series of elements may not only include those defined elements, but also include other elements not explicitly listed, or also include elements inherent to this process, method or product.
[0036] The same as the understanding in the "Examination Guidelines", in this application, expressions such as "greater than", "less than", "more than" are understood not to include the number itself; expressions such as "above", "below", "within" are understood to include the number itself. In addition, in the description of the embodiments of this application, the meaning of "a plurality of" is two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise specifically defined.
[0037] In the description of the embodiments of the present application, the spatially related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "perpendicular", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the specific embodiment or the accompanying drawings. It is only for the convenience of describing the specific embodiments of the present application or for the reader's understanding, rather than indicating or implying 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, it should not be construed as a limitation on the embodiments of the present application.
[0038] Unless otherwise clearly specified or limited, in the description of the embodiments of the present application, the terms "installed", "connected", "coupled", "fixed", "set", etc. should be understood in a broad sense. For example, the "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 directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two components or the interaction relationship between two components. For those skilled in the art to which the present application pertains, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.
[0039] In view of the defects of the existing visual inspection devices as described above, based on the rich practical experience and professional knowledge in the design and manufacture of such products for many years by the applicant, and in cooperation with the application of theory, active research and innovation have been carried out in the hope of creating a technology that can solve the defects in the existing technology, making the visual inspection device with adjustable optical path more practical. After continuous research, design, and repeated trial production of samples and improvements, finally, the present utility model with practical value has been created.
[0040] Please refer to Figure 1 and Figure 3 , an embodiment of the present utility model provides a visual inspection device with adjustable optical path, including: a beam splitter 1, which is inclined; a light source assembly 2, including a housing 21, a lamp board 22 installed on the housing 21, and a first lens assembly 23 installed on the housing 21 and with an adjustable rotation angle; the light-emitting direction of the lamp board 22 is the first direction, the first lens assembly 23 can rotate around the first axis, and the first direction is perpendicular to the first axis; the light emitted by the lamp board 22 passes through the first lens assembly 23 and is projected onto the beam splitter 1, and is refracted by the beam splitter 1 to the surface of the workpiece; a detection camera 3, which is arranged on one side of the beam splitter 1, and the light reflected by the workpiece passes through the beam splitter 1 and enters the detection camera 3. It should also be supplemented that Figure 1 in, the first axis is the center line of the angle adjustment knob 233.
[0041] Specifically, in actual detection, the angle of rotation of the first lens assembly 23 around the first axis can be changed, thereby changing the area where the light is projected onto the beam splitter 1, and further changing the area where the light is projected onto the workpiece. Thus, the visual inspection requirements of different regions of different workpieces can be met, making the visual inspection device with adjustable optical path in this embodiment more adaptable and capable of meeting the inspection needs of different workpieces. Specifically, as Figure 1 , when the first lens assembly 23 in the figure rotates, the position of the light spot on the workpiece can be changed, causing the light spot to move left or right, thereby facilitating the inspection of the surfaces of different regions of the workpiece.
[0042] Optionally, the light source assembly 2 further includes a second lens assembly 24, which is installed on the housing 21 with an adjustable angle, and the lamp board 22, the first lens assembly 23, and the second lens assembly 24 are sequentially arranged at intervals along the set light output direction; the second lens assembly 24 is located between the first lens assembly 23 and the beam splitter 1. Specifically, in this embodiment, by further adjusting the final position of the light spot through the second lens assembly 24, the applicable range of the visual inspection device with adjustable optical path can be further improved. Preferably, the second lens assembly 24 can adjust the rotation angle around the second axis, and the first axis is parallel to the second axis.
[0043] Optionally, a first sliding groove 201 is provided on the housing 21, the lamp board 22 is slidably installed in the first sliding groove 201, and a fastener 202 for fixing the lamp board 22 in the first sliding groove 201 is provided on the housing 21. Specifically, the position of the lamp board 22 can be adjusted slidably, thereby changing the distance from the lamp board 22 to the first lens assembly 23, and further changing the size of the light spot, that is, achieving the effect of adjusting the illuminance.
[0044] Optionally, the first lens assembly 23 includes a first lens body 231, a first lens fixing cylinder 232, and an angle adjustment knob 233; the first lens body 231 is installed in the first lens fixing cylinder 232, the angle adjustment knob 233 is fixedly connected to the first lens fixing cylinder 232, and the angle adjustment knob 233 is rotatably connected to the housing 21. In this embodiment, the angle adjustment knob 233 is used to adjust the rotation angle of the first lens fixing cylinder 232, so that the first lens body 231 rotates around the first axis.
[0045] Optionally, the visual inspection device with adjustable optical path further includes a light absorbing plate 4, and the light absorbing surface of the light absorbing plate 4 faces the lamp board 22; the beam splitter 1 is located between the light absorbing plate 4 and the light source assembly 2. The setting of the light absorbing plate 4 can effectively reduce the influence of stray light, reduce the stray light entering the detection camera 3, and improve the accuracy of detection.
[0046] Optionally, the visual inspection device with adjustable optical path further includes a light absorbing plate 4, the light absorbing plate 4 is an arc-shaped plate, and the concave surface of the arc-shaped plate faces the beam splitter 1. It should be noted specifically thatFigure 2 The light-absorbing plate 4 therein can be better arranged around the outside of the beam splitter 1 to better block the external stray light, which is beneficial to further improving the accuracy of visual detection.
[0047] Optionally, the beam splitter 1 is inclined at 45°.
[0048] Optionally, a second sliding groove 203 is provided on the housing 21, and the first lens assembly 23 is slidably installed in the second sliding groove 203, and a threaded member 204 for fixing the first lens assembly 23 in the second sliding groove 203 is installed on the housing 21. It should be particularly noted here that the threaded member 204 is threadedly connected to the housing 21, and the threaded member 204 is used to screw into the housing 21 to fix the first lens assembly 23 or screw out to loosen the first lens assembly 23, so as to realize the fixing or loosening of the first lens assembly 23. In Figure 1 the angle adjustment knob 233 is in a hidden state.
[0049] Optionally, an absorbing coating is applied on the side of the light-absorbing plate 4 close to the beam splitter 1 to further improve the light-absorbing effect.
[0050] Optionally, the second lens assembly 24 can adjust the rotation angle around the second axis, the second axis is perpendicular to the first axis, and the second axis is perpendicular to the first direction, so as to better adjust the final position of the light spot, that is, the position of the light spot can be adjusted in the front, back, left and right directions, further improving the applicable range of the visual detection device with adjustable optical path.
[0051] Finally, it should be noted that although the above embodiments have been described in the text and drawings of the specification of the present application, the patent protection scope of the present application cannot be limited thereby. Any technical solution obtained by equivalent structure or equivalent process substitution or modification based on the substantial concept of the present application and using the content recorded in the text and drawings of the specification of the present application, as well as any technical solution directly or indirectly implementing 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 detection device with adjustable optical path, characterized in that Comprising: A spectroscope (1), which is inclined. A light source assembly (2), including a housing (21), a lamp board (22) mounted on the housing (21), and a first lens assembly (23) mounted on the housing (21) with an adjustable rotation angle; the light-emitting direction of the lamp board (22) is the first direction, the first lens assembly (23) can rotate around a first axis, and the first direction is perpendicular to the first axis; the light emitted by the lamp board (22) passes through the first lens assembly (23) and is projected onto the spectroscope (1), and is refracted by the spectroscope (1) to the surface of the workpiece. A detection camera (3), arranged on one side of the spectroscope (1), and the light reflected by the workpiece passes through the spectroscope (1) and enters the detection camera (3).
2. The vision detection device with adjustable optical path according to claim 1, wherein, The light source assembly (2) further includes a second lens assembly (24), the second lens assembly (24) is mounted on the housing (21) with an adjustable angle, and the lamp board (22), the first lens assembly (23) and the second lens assembly (24) are sequentially arranged at intervals along the set light-emitting direction. The second lens assembly (24) is located between the first lens assembly (23) and the spectroscope (1).
3. The visual inspection device with adjustable optical path according to claim 1, characterized in that, A first sliding groove (201) is provided on the housing (21), the lamp board (22) is slidably mounted in the first sliding groove (201), and a fastener (202) for fixing the lamp board (22) in the first sliding groove (201) is provided on the housing (21).
4. The vision inspection device with adjustable optical path according to claim 1, wherein The first lens assembly (23) includes a first lens body (231), a first lens fixing cylinder (232) and an angle adjustment knob (233). The first lens body (231) is mounted in the first lens fixing cylinder (232), the angle adjustment knob (233) is fixedly connected to the first lens fixing cylinder (232), and the angle adjustment knob (233) is rotatably connected to the housing (21).
5. The visual inspection device with adjustable optical path according to claim 1, characterized in that It further includes a light-absorbing plate (4), the light-absorbing surface of the light-absorbing plate (4) faces the lamp board (22); the spectroscope (1) is located between the light-absorbing plate (4) and the light source assembly (2).
6. The visual inspection device with adjustable optical path according to claim 1, characterized in that It further includes a light-absorbing plate (4), the light-absorbing plate (4) is an arc-shaped plate, and the concave surface of the arc-shaped plate faces the spectroscope (1).
7. The visual inspection device with adjustable optical path according to claim 1, wherein The spectroscope (1) is inclined at 45°.
8. The visual inspection device with adjustable optical path according to claim 1, characterized in that A second sliding groove (203) is provided on the housing (21), the first lens assembly (23) is slidably mounted in the second sliding groove (203), and a threaded member (204) for fixing the first lens assembly (23) in the second sliding groove (203) is mounted on the housing (21).
9. The visual inspection device with adjustable optical path according to claim 5, wherein A light-absorbing coating is provided on the side of the light-absorbing plate (4) close to the spectroscope (1).
10. The vision detection device with adjustable optical path according to claim 2, wherein The second lens assembly (24) can adjust the rotation angle around a second axis, the second axis is perpendicular to the first axis, and the second axis is perpendicular to the first direction.