Combined light source and vision detection device

Abstract

The utility model relates to the field of light source structure discloses a combined light source and visual inspection device, including line light source, arcuate light source and spectroscope component, the arcuate light source is provided with strip detection hole, the spectroscope component is located the top one side of strip detection hole, the light ray of line light source shoots is along strip detection hole and is shot to the workpiece of measurement after the reflection of spectroscope component, and the rotation angle of spectroscope component is adjustable. The combined light source and visual inspection device of the utility model can adjust the position of the linear light spot relative to the arcuate light source, and ensure that the linear light spot shot by the line light source can be accurately projected to the center position of the workpiece.

Description

Technical Field

[0001] This utility model relates to the field of light source structure, and in particular to a combined light source and visual inspection device. Background Technology

[0002] With the advancement of technology, the requirements for inspection light sources in industrial visual inspection are becoming increasingly stringent. To meet the needs of some inspection scenarios, it is necessary to combine line light sources and arched light sources. The line light source and the arched light source are fixedly connected, allowing the linear light spot emitted by the line light source to pass through the arched light source and reach the workpiece under test. However, the position of the linear light spot relative to the arched light source cannot be adjusted, which can easily lead to the linear light spot not being accurately projected onto the center of the workpiece under test. In particular, the deviation of the linear light spot may further increase after changing to workpieces of different sizes.

[0003] Therefore, it is necessary to design a combined light source and vision inspection device that can adjust the position of the linear light spot relative to the arched light source, so as to ensure that the linear light spot emitted by the line light source can be accurately projected onto the center of the workpiece.

[0004] 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

[0005] This invention provides a combined light source and visual inspection device, which can adjust the position of the line light spot relative to the arched light source to ensure that the line light spot emitted by the line light source can be accurately projected onto the center position of the workpiece.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A combined light source includes a line light source, an arched light source, and a beam splitter assembly. The arched light source is provided with a strip-shaped detection aperture, and the beam splitter assembly is located on the top side of the strip-shaped detection aperture.

[0008] The light emitted by the line light source is reflected by the beam splitter assembly and then directed along the strip-shaped detection hole toward the workpiece to be tested, and the rotation angle of the beam splitter assembly is adjustable.

[0009] Optionally, the linear light source includes a circuit board, LEDs arranged linearly on the circuit board, and a strip-shaped focusing rod located on the light-emitting side of the LEDs;

[0010] The centerline of the bar-shaped focusing rod is parallel to the horizontal plane, and the beam splitter assembly can rotate around a set axis, which is parallel to the centerline of the bar-shaped focusing rod.

[0011] Optionally, the arched light source includes an arched housing, a lamp plate installed inside the arched housing, and a cooling fan installed outside the arched light source.

[0012] Optionally, the outer surface of the arched shell is provided with parallel heat dissipation strip protrusions, and two adjacent heat dissipation strip protrusions are spaced apart; all the heat dissipation strip protrusions form a first heat dissipation area and a first second heat dissipation area, and both the first heat dissipation area and the second heat dissipation area include at least three heat dissipation strip protrusions;

[0013] A cooling fan is provided at each of the opposite ends of the heat dissipation strip protrusion. The air outlet of one of the cooling fans blows air from the end toward the first heat dissipation area, and the outer shell is spaced apart from the second heat dissipation area. The air outlet of the other cooling fan blows air from the end toward the second heat dissipation area, and the outer shell is spaced apart from the first heat dissipation area.

[0014] Optionally, the cooling fan is a snail fan.

[0015] Optionally, the snail-shaped fan does not protrude from the heat dissipation strip protrusion.

[0016] Optionally, the light panel emits light onto the inner side of the arched housing, and the inner side reflects the light onto the surface of the workpiece to be tested; a light panel is provided on each of the opposite sides of the arched housing.

[0017] Optionally, the combined light source also includes a side support plate;

[0018] The side support plate is provided with a rotating hole, the beam splitter assembly is rotatably connected to the rotating hole via a rotating shaft, and an arc-shaped adjustment hole is provided on the side of the rotating hole;

[0019] The adjusting member extends into the arc-shaped adjusting hole and is threadedly connected to the beam splitter assembly.

[0020] Optionally, the beam splitter assembly is elongated.

[0021] A visual inspection device includes a camera and a combined light source as described in any of the preceding claims, the camera being mounted on one side of the top of the beam splitter assembly.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The combined light source and visual inspection device provided by this utility model has a line light source that is reflected by a beam splitter assembly, passes through a strip-shaped inspection hole, and is projected onto the surface of the workpiece to be tested. The beam splitter assembly can be rotated to adjust the angle, thereby flexibly adjusting the position of the line light spot, so that the line light spot passing through the arched light source can be accurately projected onto the center position of the workpiece, which is beneficial to improving the subsequent inspection effect.

[0024] 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

[0025] 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.

[0026] Figure 1 This is an exploded view of the combined light source provided in this embodiment of the utility model;

[0027] Figure 2 This is a front view schematic diagram of the combined light source provided in an embodiment of this utility model;

[0028] Figure 3 yes Figure 2 A schematic diagram of the cross-sectional structure of the combined light source along line AA;

[0029] Figure 4 This is a side view of the combined light source provided in an embodiment of the present invention.

[0030] Reference numerals: 1. Line light source; 11. Circuit board; 12. Lamp bead; 13. Strip-shaped spotlight bar; 2. Arched light source; 21. Strip-shaped detection hole; 201. Arched housing; 202. Lamp board; 203. Cooling fan; 2001. Cooling strip protrusion; 3. Beam splitter assembly; 4. Side support plate; 101. Rotating shaft; 100. Workpiece to be tested. Detailed Implementation

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] Example 1

[0041] In view of the aforementioned shortcomings of existing combined light sources, the applicant, based on years of rich practical experience and professional knowledge in the design and manufacture of such products, and in conjunction with the application of theoretical principles, actively conducted research and innovation in order to create a solution to the shortcomings of existing technologies and make combined light sources more practical. After continuous research, design, and repeated prototype production and improvement, this utility model with real practical value was finally created.

[0042] Please refer to Figures 1 to 4 This utility model embodiment provides a combined light source, including a line light source 1, an arched light source 2, and a beam splitter assembly 3. The arched light source 2 is provided with a strip-shaped detection hole 21, and the beam splitter assembly 3 is located on the top side of the strip-shaped detection hole 21. The light emitted from the line light source 1 is reflected by the beam splitter assembly 3 and then directed along the strip-shaped detection hole 21 toward the workpiece 100 to be measured. The rotation angle of the beam splitter assembly 3 is adjustable.

[0043] In this embodiment, by rotating the beam splitter assembly 3, the tilt angle of the beam splitter in the beam splitter assembly 3 is adjusted, thereby changing the emission angle of the light. This allows the linear light spot emitted from the line light source 1 to pass through the strip-shaped detection hole 21 of the arched light source 2 and be accurately projected onto the central region of the workpiece 100 to be tested, thus better detecting the surface of the workpiece 100. Preferably, the center line of the beam splitter assembly 3 is parallel to the center line of the strip-shaped focusing rod 13 of the line light source 1.

[0044] Optionally, the linear light source 1 includes a circuit board 11, LED beads 12 linearly arranged on the circuit board 11, and a strip-shaped focusing rod 13 located on the light-emitting side of the LED beads 12. The center line of the strip-shaped focusing rod 13 is parallel to the horizontal plane, and the beam splitter assembly 3 can rotate around a set axis, which is parallel to the center line of the strip-shaped focusing rod 13. The strip-shaped focusing rod 13 focuses the light emitted from the LED beads, thereby forming a linear light spot. The rotation center line of the beam splitter assembly 3 is parallel to the center line of the strip-shaped focusing rod 13. By rotating the beam splitter assembly 3, the position of the linear light spot can be changed, allowing it to be better projected onto the central area of ​​the workpiece 100 under test.

[0045] Optionally, the arched light source 2 includes an arched housing 201, a lamp plate 202 installed inside the arched housing 201, and a cooling fan 203 installed outside the arched light source 2. The cooling fan 203 blows air onto the outside of the arched light source 2, thereby achieving a certain cooling effect.

[0046] Optionally, the outer surface of the arched housing 201 is provided with parallel heat dissipation strip protrusions 2001, with adjacent heat dissipation strip protrusions 2001 spaced apart; all heat dissipation strip protrusions 2001 form a first heat dissipation area and a first second heat dissipation area, and both the first and second heat dissipation areas include at least three heat dissipation strip protrusions 2001; a cooling fan 203 is provided at each of the opposite ends of the heat dissipation strip protrusions 2001, with the air outlet of one cooling fan 203 blowing air from the end towards the first heat dissipation area, and the housing being spaced apart from the second heat dissipation area; the air outlet of the other cooling fan 203 blows air from the end towards the second heat dissipation area, and the housing being spaced apart from the first heat dissipation area.

[0047] In this embodiment, one cooling fan 203 cools the first heat dissipation area, and the other cooling fan 203 cools the second heat dissipation area. The two cooling fans 203 are located at opposite ends of the heat dissipation strip protrusion 2001, thus avoiding the situation of crowded space caused by having two cooling fans 203 on the same end. In this embodiment, one cooling fan 203 blows air to the left, and the other cooling fan 203 blows air to the right, resulting in better heat dissipation and saving installation space.

[0048] Optionally, the cooling fan 203 is a snail fan. A snail fan is also known as a single-inlet centrifugal blower.

[0049] Optionally, the snail-shaped fan does not protrude from the heatsink protrusion 2001. This not only increases the height of the heatsink protrusion 2001 to improve heat dissipation, but also effectively reduces the possibility of damage to the snail-shaped fan. It should be further noted that the air blown by the snail-shaped fan is routed through the gaps between the heatsink protrusions 2001, carrying away the heat from the heatsink protrusions 2001.

[0050] Optionally, the lamp plate 202 emits light to the inner side of the arched housing 201, and the inner side reflects the light to the surface of the workpiece 100 to be measured; a lamp plate 202 is provided on each of the opposite sides of the arched housing 201, so that the light output of the arched light source 2 is more uniform.

[0051] Optionally, the combined light source also includes a side support plate 4; the side support plate 4 is provided with a rotating hole, the beam splitter assembly 3 is rotatably connected to the rotating hole via a rotating shaft 101, and an arc-shaped adjustment hole is provided on the side of the rotating hole; the adjustment component extends into the arc-shaped adjustment hole and is threadedly connected to the beam splitter assembly 3.

[0052] Specifically, after adjusting the rotation angle of the beam splitter assembly 3, the adjusting component is tightened, thereby fixing the beam splitter assembly 3 and the side support plate 4 relative to each other.

[0053] Optionally, the beam splitter assembly 3 is elongated.

[0054] Example 2

[0055] A visual inspection device includes a camera 5 and a combined light source as described in Embodiment 1, wherein the camera 5 is mounted on the top side of the beam splitter assembly 3.

[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 combined light source, characterized in that It includes a line light source, an arched light source, and a beam splitter assembly. The arched light source is provided with a strip-shaped detection aperture, and the beam splitter assembly is located on one side of the top of the strip-shaped detection aperture. The light emitted by the line light source is reflected by the beam splitter assembly and then directed along the strip-shaped detection hole toward the workpiece to be tested, and the rotation angle of the beam splitter assembly is adjustable.

2. The combined light source according to claim 1, characterized in that The linear light source includes a circuit board, LED beads arranged linearly on the circuit board, and a strip-shaped focusing rod located on the light-emitting side of the LED beads; The centerline of the bar-shaped focusing rod is parallel to the horizontal plane, and the beam splitter assembly can rotate around a set axis, which is parallel to the centerline of the bar-shaped focusing rod.

3. The combination light source of claim 1, wherein, The arched light source includes an arched housing, a lamp plate installed inside the arched housing, and a cooling fan installed outside the arched light source.

4. The combined light source according to claim 3, characterized in that The outer surface of the arched shell is provided with parallel heat dissipation strip protrusions, with adjacent heat dissipation strip protrusions spaced apart; all the heat dissipation strip protrusions form a first heat dissipation area and a first second heat dissipation area, and both the first heat dissipation area and the second heat dissipation area include at least three heat dissipation strip protrusions; A cooling fan is provided at each of the opposite ends of the heat dissipation strip protrusion. The air outlet of one of the cooling fans blows air from the end toward the first heat dissipation area, and the outer shell is spaced apart from the second heat dissipation area. The air outlet of the other cooling fan blows air from the end toward the second heat dissipation area, and the outer shell is spaced apart from the first heat dissipation area.

5. The combined light source according to claim 4, characterized in that The cooling fan is a snail fan.

6. The combined light source according to claim 5, characterized in that The snail-shaped fan does not protrude from the heat dissipation strip protrusion.

7. The combination light source of claim 3, wherein, The light plate emits light onto the inner side of the arched housing, and the inner side reflects the light onto the surface of the workpiece to be tested; a light plate is provided on each of the opposite sides of the arched housing.

8. The combination light source of claim 1, wherein, It also includes side support plates; The side support plate is provided with a rotating hole, the beam splitter assembly is rotatably connected to the rotating hole via a rotating shaft, and an arc-shaped adjustment hole is provided on the side of the rotating hole; The adjusting member extends into the arc-shaped adjusting hole and is threadedly connected to the beam splitter assembly.

9. The combination light source of claim 1, wherein, The beam splitter assembly is elongated.

10. A vision inspection apparatus characterized by comprising: It includes a camera and a combined light source as described in any one of claims 1 to 9, wherein the camera is mounted on the top side of the beam splitter assembly.

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