CN219799205U - Light source device for duplex position detection - Google Patents
Light source device for duplex position detection Download PDFInfo
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- CN219799205U CN219799205U CN202320973077.1U CN202320973077U CN219799205U CN 219799205 U CN219799205 U CN 219799205U CN 202320973077 U CN202320973077 U CN 202320973077U CN 219799205 U CN219799205 U CN 219799205U
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- 238000001514 detection method Methods 0.000 title claims abstract description 73
- 238000003384 imaging method Methods 0.000 claims abstract description 10
- 230000010287 polarization Effects 0.000 claims description 36
- 238000009792 diffusion process Methods 0.000 claims description 16
- 230000001502 supplementing effect Effects 0.000 claims description 13
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 230000003287 optical effect Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 239000011324 bead Substances 0.000 description 4
- 230000000007 visual effect Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
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- 238000007747 plating Methods 0.000 description 1
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Abstract
The utility model discloses a light source device for double-station detection, which comprises a shell, wherein the shell is internally provided with: the two groups of mirrors are used for aligning the arranged light sources and the middle total reflection unit positioned between the two groups of light sources; two detection stations are arranged below the middle total reflection unit at intervals side by side; forming a first light path for reflecting and illuminating the detection station along the directions of the light source, the intermediate total reflection unit and the detection station; forming a second light path for imaging the workpiece feature on the detection station along the directions of the detection station, the intermediate total reflection unit and the light source; through the setting of light source and middle total reflection unit, the first light path and the second light path of formation come simultaneous detection to be located the work piece that two intervals set up on the detection station of middle total reflection unit below, submit detection efficiency.
Description
Technical Field
The utility model relates to the technical field of detection light sources, in particular to a light source device for double-station detection.
Background
Many products currently use visual optical devices to detect surface flaws of the product, but the current visual optical devices can only detect flaws on one surface of an article at a time, and cannot detect the flaws on two surfaces of the article or the article with two symmetrical accessories. For example, a strip-shaped article such as a zipper or a color rope is provided with two surfaces, and the traditional visual optical equipment can only detect one surface before detecting the other surface when detecting the zipper or the color rope, so that the efficiency is low.
Disclosure of Invention
In order to solve the technical problems, an object of the present utility model is to provide a light source device for dual-station detection, which is used for improving workpiece detection efficiency.
In view of the above, the present utility model provides a light source device for duplex position detection, including a housing, in which: the two groups of mirrors are used for aligning the arranged light sources and the middle total reflection unit positioned between the two groups of light sources;
two detection stations are arranged below the middle total reflection unit at intervals side by side;
forming a first light path for reflecting and illuminating the detection station along the directions of the light source, the intermediate total reflection unit and the detection station;
forming a second light path for imaging the workpiece feature on the detection station along the directions of the detection station, the intermediate total reflection unit and the light source;
and the CCD camera component is used for aligning with the light outlet of the second light path and shooting picture information of the workpiece.
Further, the light source comprises a light emitting component, a diffusion plate, a polarization beam splitter prism and a total reflection prism which are arranged at intervals along the vertical direction; the diffusion plate is arranged above the light-emitting component; the polarization beam splitter prism is arranged above the diffusion plate and is positioned on the light-emitting path of the light-emitting component; the total reflection prism is arranged above the beam splitting prism and is used for reflecting light reflected by the workpiece into a camera of the CCD camera assembly.
Further, an included angle between the inclined plane extension line in the polarization beam splitter prism and the inclined plane extension line of the total reflection prism is a right angle.
Further, the light source further comprises a light supplementing and emitting assembly, and the light supplementing and emitting assembly is used for sending a lens light supplementing light path to the CCD camera assembly.
Further, the shape of the intermediate total reflection unit is an isosceles right triangle, and the intermediate total reflection unit comprises a first reflection surface and a second reflection surface which are perpendicular to each other, wherein the first reflection surface and the second reflection surface face the polarization beam splitter prism respectively, and are parallel to inclined surfaces in the polarization beam splitter prism.
Further, the workpiece is arranged below the first reflecting surface and the second reflecting surface and is respectively positioned in the reflecting areas of the first reflecting surface and the second reflecting surface.
Further, the CCD camera assembly comprises two CCD cameras, and cameras of the two CCD cameras are respectively aligned with light-emitting light paths of the two total reflection prisms.
Further, the shell comprises a bottom plate, side plates perpendicular to two side surfaces of the bottom plate, a first mounting bracket fixedly arranged on the bottom plate, and a second mounting bracket arranged in the middle of the top surface of the first mounting bracket and used for mounting the middle total reflection unit, the light-emitting component is arranged on the bottom plate, one side of the diffusion plate is fixedly arranged on the side plates, and the other side of the diffusion plate is fixedly connected with the first mounting bracket; the polarization beam splitter prism and the total reflection prism are both arranged on the side plate.
Further, a first through groove is formed in the middle of the bottom plate, a second through groove communicated with the first through groove is formed in the middle of the first mounting bracket, and the first through groove is aligned with the two workpieces respectively and used for allowing reflected light beams to pass through.
The utility model has the beneficial effects that: the embodiment of the utility model provides a light source device for double-station detection, which comprises a shell, wherein the shell is internally provided with: the two groups of mirrors are used for aligning the arranged light sources and the middle total reflection unit positioned between the two groups of light sources; two detection stations are arranged below the middle total reflection unit at intervals side by side; forming a first light path for reflecting and illuminating the detection station along the directions of the light source, the intermediate total reflection unit and the detection station; forming a second light path for imaging the workpiece feature on the detection station along the directions of the detection station, the intermediate total reflection unit and the light source; through the setting of light source and middle total reflection unit, the first light path and the second light path of formation come simultaneous detection to be located the work piece that two intervals set up on the detection station of middle total reflection unit below, submit detection efficiency.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a light source device for duplex position detection according to an embodiment of the present utility model;
fig. 2 is a schematic diagram of an internal structure of a light source device for duplex position detection according to an embodiment of the present utility model;
fig. 3 is a schematic diagram of an optical path structure of a light source device for duplex position detection according to an embodiment of the present utility model;
fig. 4 is an exploded view of a light source device for duplex position detection according to an embodiment of the present utility model.
In the figure: 1. a housing; 10. a bottom plate; 11. a side plate; 12. a first mounting bracket; 13. a second mounting bracket; 14. a first through groove; 15. a second through slot;
2. a light source; 20. a light emitting assembly; 21. a diffusion plate; 22. a polarization beam splitter prism; 23. a total reflection prism; 24. a light supplementing and emitting component;
3. an intermediate total reflection unit; 30. a first reflecting surface; 31. a second reflecting surface;
4. detecting a station; 40. a workpiece;
5. a CCD camera assembly; 50. a CCD camera.
Detailed Description
The embodiment of the utility model provides a light source device for double-station detection, which is used for improving the workpiece detection efficiency.
In order to make the objects, features and advantages of the present utility model more comprehensible, the technical solutions in the embodiments of the present utility model are described in detail below with reference to the accompanying drawings, and it is apparent that the embodiments described below are only some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.
Examples:
fig. 1 is a schematic structural diagram of a light source device for duplex position detection, and fig. 2 is a schematic structural diagram of an internal structure of a duplex position detection device according to an embodiment of the present utility model; fig. 3 is a schematic diagram of an optical path structure of a dual-station detection device according to an embodiment of the present utility model; fig. 4 is an exploded view of a dual-station detecting device according to an embodiment of the present utility model.
As shown in fig. 1-4, a duplex detecting device includes a housing 1, wherein: the two groups of mirrors are provided with the light source 2 and the middle total reflection unit 3 positioned in the middle of the two groups of the light sources 2 in a pair;
specifically, the two groups of light sources 2 have the same structure and are arranged in a mirror symmetry manner, and are respectively arranged at the left side and the right side of the middle total reflection unit 3; two detection stations 4 are arranged below the intermediate total reflection unit 3 at intervals side by side; the light beam emitted by the light source 2 is refracted onto the reflecting surface of the intermediate total reflection unit 3 through the lens component in the light source 2, reflected illumination light is reflected onto the detection station 4 through the reflection of the reflecting surface of the intermediate total reflection unit 3, and the characteristic imaging light is reflected by the workpiece 40 on the detection station 4 to reach the intermediate total reflection unit 3, then reflected into the light source 2, refracted and reflected through the lens in the light source 2 and reaches the CCD camera component 5.
It should be noted that, as shown in fig. 3, a first light path 100 for reflectively illuminating the detection station 4 is formed along the directions of the light source 2, the intermediate total reflection unit 3 and the detection station 4;
in addition, a second light path 200 for imaging the features of the workpiece 40 on the inspection station 4 is formed along the direction of the inspection station 4, the intermediate total reflection unit 3, the light source 2; a CCD camera assembly 5 is used for aligning the light exit of the second light path 200 for taking picture information of the workpiece 40.
By the arrangement of the light source 2 and the intermediate total reflection unit 3, the first light path 100 and the second light path 200 are formed to simultaneously detect two workpieces 40 arranged at intervals on the detection station 4 below the intermediate total reflection unit 3, and the detection efficiency is improved.
Further, as shown in fig. 2 and 4, the light source 2 includes a light emitting assembly 20, a diffusion plate 21, a polarization splitting prism 22, and a total reflection prism 23 which are disposed at intervals in a vertical direction; the diffusion plate 21 is arranged above the light emitting assembly 20; the polarization splitting prism 22 is disposed above the diffusion plate 21 and is located on the light-emitting path of the light-emitting component 20; the total reflection prism 23 is disposed above the beam splitting prism 22, and is configured to reflect the light reflected by the workpiece 40 into the camera of the CCD camera assembly 5.
In a specific embodiment, the light emitting component 20 includes a PCB light board and an LED light bead installed on the PCB light board, and the type and color of the LED light bead are not limited, and the detection requirement can be met. The diffusion plate 21 is mainly used for sufficiently diffusing incident light to achieve a softer and more uniform irradiation effect. The polarization splitting prism 22 is an optical element for separating horizontal polarization and vertical polarization of light, the polarization splitting prism 22 is formed by plating a multilayer film structure on an inclined plane of a right angle prism, and then is glued to form a cube structure for separating the horizontal polarization and the vertical polarization of a beam of light, and the polarization splitting prism has the characteristics of small stress, high extinction ratio, good imaging quality and small beam deflection angle, and the wavelength covers 420-1600 nm. Can be used for occasions such as polarization, polarization detection, light intensity adjustment and the like. The total reflection prism 23 is a prism having a cross section of an isosceles right triangle.
Further, as shown in fig. 3, the inclined plane extended line in the polarization beam splitter prism 22 and the inclined plane extended line of the total reflection prism 23 form a right angle.
Specifically, the total reflection prism 23 is disposed above the polarization splitting prism 22, and an included angle between an inclined plane extended line of the polarization splitting prism 22 and an inclined plane extended line of the total reflection prism 23 is a right angle, so that light refracted by an inclined plane of the polarization splitting prism 22 can be parallel to light reflected by an inclined plane of the total reflection prism 23, and the characteristic imaging light can reach the CCD camera assembly 5 in parallel.
Further, as shown in fig. 2-4, the light source 2 further includes a light supplementing light emitting component 24, and the light supplementing light emitting component 24 is configured to send a lens light supplementing light path 300 to the CCD camera component 5.
Specifically, the light supplementing and emitting assembly 24 includes a PCB lamp panel and an LED lamp bead, and the type and color of the LED lamp bead are not limited, and the light supplementing requirement can be met. The lens of the CCD camera assembly 5 is supplemented with light by the light supplementing light emitting assembly 24.
Further, as shown in fig. 2 and 3, the intermediate total reflection unit 3 is in the shape of an isosceles right triangle, and includes a first reflection surface 30 and a second reflection surface 31 that are perpendicular to each other, where the first reflection surface 30 and the second reflection surface 31 face the polarization beam splitter prism 22 respectively, and are parallel to the inclined surfaces in the polarization beam splitter prism 22.
In a specific embodiment, the shape of the intermediate total reflection unit 3 is an isosceles right triangle, and the intermediate total reflection unit includes a first reflection surface 30 and a second reflection surface 31 that are perpendicular to each other, where the first reflection surface 30 faces the polarization splitting prism 22 and the detection station 4 near the first reflection surface 30, and is used for reflecting the first optical path 200 and the second optical path 300; the second reflecting surface 31 faces the polarization splitting prism 22 and the detection station 4 near the first reflecting surface 30, and is used for reflecting the first light path 200 and the second light path 300, and the first reflecting surface 30 and the corresponding inclined surface in the polarization splitting prism 22 are parallel to each other; the second reflecting surface 31 and the corresponding inclined surface in the polarization splitting prism 22 are parallel to each other.
Further, as shown in fig. 2 and 4, the workpiece 40 is disposed below the first reflecting surface 30 and the second reflecting surface 31, and is located in the reflecting areas of the first reflecting surface 30 and the second reflecting surface 31, respectively.
In a specific embodiment, two workpieces 40 are respectively disposed in the reflective areas of the first reflective surface 30 and the second reflective surface 31, so as to perform detection more accurately.
Further, as shown in fig. 1, the CCD camera assembly 5 includes two CCD cameras 50, and the cameras of the two CCD cameras 50 are aligned with the light-emitting paths of the two total reflection prisms 23, respectively.
In a specific embodiment, by providing two CCD cameras 50, the cameras of the two CCD cameras 50 are respectively aligned to the light-emitting paths of the two total reflection prisms 23, so as to capture the characteristic imaging light of the two workpieces 40 respectively.
Further, as shown in fig. 2 and 4, the housing 1 includes a bottom plate 10, side plates 11 perpendicular to both sides of the bottom plate 10, a first mounting bracket 12 fixedly installed on the bottom plate 10, and a second mounting bracket 13 installed in the middle of the top surface of the first mounting bracket 12 for mounting the intermediate total reflection unit 3, the light emitting assembly 20 is installed on the bottom plate 10, one side of the diffusion plate 21 is fixedly installed on the side plates 11, and the other side is fixedly connected with the first mounting bracket 12; the polarization splitting prism 22 and the total reflection prism 23 are mounted on the side plate 11.
In a specific embodiment, the light emitting assembly 20 is mounted on the bottom plate 10, the polarization splitting prism 22 and the total reflection prism 23 are mounted on the side plate 11 at intervals, the outer side of the diffusion plate 21 is screw-fastened to the first mounting bracket 12, and in addition, the second mounting bracket 13 is mounted in the middle of the top surface of the first mounting bracket 12, so that the middle total reflection unit 3 is conveniently mounted.
Further, as shown in fig. 4, a first through slot 14 is disposed in the middle of the base plate 10, a second through slot 15 is disposed in the middle of the first mounting bracket 12 and is in communication with the first through slot 14, and the first through slot 14 is aligned with two workpieces 40 respectively, so as to allow the reflected light beam to pass through.
In a specific embodiment, a first through groove 14 is disposed in the middle of the bottom plate 10, and a second through groove 15 that is in communication with the first through groove 14 is disposed in the middle of the first mounting bracket 12, and light is reflected from the two through grooves onto the workpiece 40.
In summary, an embodiment of the present utility model provides a light source device for duplex position detection, including a housing, in which: the two groups of mirrors are used for aligning the arranged light sources and the middle total reflection unit positioned between the two groups of light sources; two detection stations are arranged below the middle total reflection unit at intervals side by side; forming a first light path for reflecting and illuminating the detection station along the directions of the light source, the intermediate total reflection unit and the detection station; forming a second light path for imaging the workpiece feature on the detection station along the directions of the detection station, the intermediate total reflection unit and the light source; through the setting of light source and middle total reflection unit, the first light path and the second light path of formation come simultaneous detection to be located the work piece that two intervals set up on the detection station of middle total reflection unit below, submit detection efficiency.
The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (9)
1. The utility model provides a light source device for duplex position detects, its characterized in that includes casing (1), be equipped with in casing (1): the two groups of mirrors are provided with the light sources (2) in a symmetrical way and an intermediate total reflection unit (3) positioned between the two groups of light sources (2);
two detection stations (4) are arranged below the middle total reflection unit (3) at intervals side by side;
forming a first light path (100) for reflectively illuminating the detection station (4) along the directions of the light source (2), the intermediate total reflection unit (3) and the detection station (4);
forming a second light path (200) for imaging features of a workpiece (40) on the detection station (4) along the direction of the detection station (4), the intermediate total reflection unit (3) and the light source (2);
and the CCD camera component (5) is used for aligning the light outlet of the second light path (200) and shooting picture information of the workpiece (40).
2. The light source device for duplex position detection according to claim 1, wherein the light source (2) comprises a light emitting assembly (20), a diffusion plate (21), a polarization beam splitter prism (22) and a total reflection prism (23) arranged at intervals in a vertical direction; the diffusion plate (21) is arranged above the light-emitting component (20); the polarization beam splitter prism (22) is arranged above the diffusion plate (21) and is positioned on the light-emitting path of the light-emitting component (20); the total reflection prism (23) is arranged above the beam splitting prism (22) and is used for reflecting light rays reflected by the workpiece (40) into a camera of the CCD camera assembly (5).
3. The light source device for duplex position detection according to claim 2, wherein an angle between an extended line of a slope in the polarization beam splitter prism (22) and an extended line of a slope of the total reflection prism (23) is a right angle.
4. The light source device for duplex position detection according to claim 2, wherein the light source (2) further comprises a light supplementing light emitting assembly (24), the light supplementing light emitting assembly (24) being configured to send a lens light supplementing light path (300) to the CCD camera assembly (5).
5. The light source device for duplex position detection according to claim 2, wherein the shape of the intermediate total reflection unit (3) is isosceles right triangle, including a first reflection surface (30) and a second reflection surface (31) that are perpendicular to each other, the first reflection surface (30) and the second reflection surface (31) face the polarization beam splitter prism (22) respectively, and are parallel to each other with the inclined surface in the polarization beam splitter prism (22).
6. The light source device for duplex position detection according to claim 5, wherein the workpiece (40) is disposed below the first reflecting surface (30) and the second reflecting surface (31), and is located in the reflecting areas of the first reflecting surface (30) and the second reflecting surface (31), respectively.
7. The light source device for duplex position detection according to claim 2, wherein the CCD camera assembly (5) comprises two CCD cameras (50), and the cameras of the two CCD cameras (50) are aligned with the light-emitting light paths of the two total reflection prisms (23), respectively.
8. The light source device for duplex position detection according to claim 2, wherein the housing (1) comprises a bottom plate (10), side plates (11) perpendicular to both sides of the bottom plate (10), a first mounting bracket (12) fixedly arranged on the bottom plate (10), and a second mounting bracket (13) arranged in the middle of the top surface of the first mounting bracket (12) and used for mounting the intermediate total reflection unit (3), the light emitting component (20) is arranged on the bottom plate (10), one side of the diffusion plate (21) is fixedly arranged on the side plates (11), and the other side is fixedly connected with the first mounting bracket (12); the polarization beam splitter prism (22) and the total reflection prism (23) are both arranged on the side plate (11).
9. The light source device for double-station detection according to claim 8, wherein a first through groove (14) is provided at a middle position of the base plate (10), a second through groove (15) communicating with the first through groove (14) is provided at a middle position of the first mounting bracket (12), and the first through groove (14) is aligned with the two workpieces (40) respectively, for passing the reflected light beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320973077.1U CN219799205U (en) | 2023-04-25 | 2023-04-25 | Light source device for duplex position detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320973077.1U CN219799205U (en) | 2023-04-25 | 2023-04-25 | Light source device for duplex position detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219799205U true CN219799205U (en) | 2023-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320973077.1U Active CN219799205U (en) | 2023-04-25 | 2023-04-25 | Light source device for duplex position detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219799205U (en) |
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2023
- 2023-04-25 CN CN202320973077.1U patent/CN219799205U/en active Active
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