CN218180691U - Double-sided detection light source device - Google Patents
Double-sided detection light source device Download PDFInfo
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- CN218180691U CN218180691U CN202122092266.1U CN202122092266U CN218180691U CN 218180691 U CN218180691 U CN 218180691U CN 202122092266 U CN202122092266 U CN 202122092266U CN 218180691 U CN218180691 U CN 218180691U
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Abstract
The utility model discloses a two-sided detection light source device for wait to detect that is located the detection station and detect the work piece and carry out the defect detection, include: the first light-emitting module is used for emitting first illuminating light; after a part of the first irradiation light irradiates the first surface of the workpiece to be detected along the first direction, the first irradiation light is reflected by the first surface of the workpiece to be detected to form first characteristic light; the first reflecting piece is arranged along the light path of the first illuminating light and is arranged on one side, far away from the first light-emitting module, of the workpiece to be detected; the other part of the first irradiation light is reflected by the first reflecting piece, and after the first irradiation light irradiates the second surface of the workpiece to be detected, the second irradiation light is reflected by the second surface of the workpiece to be detected to form second characteristic light. The utility model discloses one set of optical module of arranging on a detection station, can realize the detection on two surfaces in same work piece simultaneously promptly, simplified the detection step, light path simple structure has consequently saved the detection cost effectively simultaneously to detection efficiency has effectively been improved.
Description
Technical Field
The utility model relates to a visual detection technical field especially relates to a two-sided detection light source device.
Background
With the development of intelligent manufacturing and fine processing detection technology, micro parts such as a micro chip circuit board and the like are rapidly developed and widely applied, and higher requirements are provided for the detection precision and efficiency. Machine vision inspection can realize surface characteristics, defect identification, size positioning and the like of fine workpieces, so that the machine vision inspection becomes an indispensable core link for intelligent manufacturing.
Under some circumstances, the front and the back need to be detected, and the front and the back of a workpiece need to be equipped with a detection station, a light source and a camera respectively in the prior art, so that the structure of a detection system is complex, the detection steps are complex, the cost is high, and the market demand is difficult to adapt.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides a two-sided detection light source device solves among the prior art to the work piece detection cost that carries out two-sided detection under high, problem that detection efficiency is low simultaneously.
In order to achieve the above object, the present invention provides the following technical solutions:
a double-sided detection light source device is used for detecting defects of a workpiece to be detected positioned at a detection station, and comprises:
the first light-emitting module is used for emitting first illuminating light; a part of the first irradiation light irradiates the first surface of the workpiece to be detected along a first direction, and then is reflected by the first surface of the workpiece to be detected to form first characteristic light;
the first reflecting piece is arranged along the light path of the first illuminating light and is arranged on one side, far away from the first light-emitting module, of the workpiece to be detected; the other part of the first irradiation light is reflected by the first reflecting piece and irradiates on the second surface of the workpiece to be detected, and then the other part of the first irradiation light is reflected by the second surface of the workpiece to be detected to form second characteristic light.
Optionally, the detection device comprises an outer shell, wherein an upper cover plate is arranged at the top of the outer shell, a feeding hole is formed in the upper cover plate, and the detection station corresponds to the feeding hole.
Optionally, a first lamp holder is arranged at the top of the outer shell, an inclined surface is arranged on the first lamp holder, and the first light emitting module is arranged on the inclined surface of the first lamp holder;
an included angle between the first direction and the first surface of the workpiece to be detected is an acute angle.
Optionally, a shooting window is formed in the side surface of the outer shell;
the double-sided detection light source device further comprises a second reflecting piece, wherein the second reflecting piece is arranged on a light path of the first characteristic light and the second characteristic light and used for reflecting the first characteristic light and the second characteristic light to the outside of the shooting window.
Optionally, the lighting device further comprises a second lighting module for emitting a second illumination light; the second irradiation light irradiates the first surface of the workpiece to be detected along a second direction;
the second direction is perpendicular to the first surface of the workpiece to be detected.
Optionally, the second reflecting element is a beam splitter, and the second reflecting element is located on an exit light path of the second irradiation light.
Optionally, the illumination device further includes a diffusion plate, and the diffusion plate is located on an exit light path of the second illumination light.
Optionally, a material guide plate is arranged below the detection station in the outer shell, the material guide plate is inclined downwards, and a discharge end is formed at the lower inclined end of the material guide plate;
a discharge port is formed at the joint of the side surface of the outer shell and the discharge end; the lateral surface of shell body is equipped with the silo that gathers materials, the silo that gathers materials is located the below of discharge gate.
Optionally, the material guide plate is made of high-transmittance tempered glass with both surfaces coated with antireflection films.
Optionally, a plurality of first reflecting members are provided, and the plurality of first reflecting members are arranged around a central axis of the detection station; the first reflecting piece is a total reflection prism.
Optionally, the first light emitting modules are provided in plurality, and the plurality of first light emitting modules are arranged around a central axis of the detection station.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model provides a two-sided detection light source device arranges one set of optical module of arranging on a detection station, can realize the detection on two surfaces in the same work piece simultaneously promptly, has simplified the detection step, and light path simple structure has consequently saved the detection cost effectively simultaneously to detection efficiency has effectively been improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic structural view of a double-sided detection light source device provided by the present invention;
fig. 2 is a cross-sectional view of a double-sided detection light source device provided by the present invention.
In the above figures: 10. an outer housing; 11. a material guide plate; 12. a discharge port; 13. a material collecting groove; 14. a shooting window; 15. an upper cover plate; 151. a feed inlet; 16. a second reflector; 17. a connecting member; 20. a first lamp holder; 201. an inclined surface; 21. a first light emitting module; 22. a first light control line; 23. a first reflective member; 24. a first irradiation light; 30. a second lamp holder; 31. a second light emitting module; 32. a diffuser plate; 33. a second light control line; 34. a second irradiation light; 40. detecting a camera; 41. and (5) a lens.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are clearly and completely described with reference to the drawings in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Furthermore, the terms "long", "short", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the device or element referred to must have the specific orientation, operate in the specific orientation configuration, and thus, should not be construed as limiting the present invention.
In some scenes that the front and the back of a workpiece to be detected need to be detected, in the prior art, a detection station, a detection light source and a detection camera need to be respectively arranged on the front and the back of the workpiece, so that the structure of a detection system is complicated, the detection steps are complicated, the detection cost is high, and the detection efficiency is low and the market demand is difficult to adapt.
The present invention is directed to a double-sided detection light source device to overcome the above problems in the prior art.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Please refer to fig. 1 and fig. 2 in combination, an embodiment of the present invention provides a double-sided detection light source device for detecting defects of a workpiece to be detected at a detection station. It is understood that the inspection station may be a station with physical support, or may be a virtual station formed by positioning a workpiece at a predetermined position by a clamping mechanism or a suction cup.
In this embodiment, the double-sided detection light source device includes:
a first light emitting module 21 for emitting a first illuminating light 24; a part of the first irradiation light 24 is irradiated on the first surface of the workpiece to be detected along the first direction, and then reflected by the first surface of the workpiece to be detected to form first characteristic light;
the first reflecting piece 23 is arranged along the light path of the first illuminating light ray 24, and the first reflecting piece 23 is arranged on one side of the workpiece to be detected, which is far away from the first light-emitting module 21; another part of the first irradiation light 24 is reflected by the first reflecting member 23 to irradiate the second surface of the workpiece to be detected, and then reflected by the second surface of the workpiece to be detected to form a second characteristic light.
The first characteristic light and the second characteristic light are collected by the lens 41 of the detection camera 40, and the surface characteristic images of the first surface and the second surface can be obtained.
Further, the two-sided detection light source device that this embodiment provided includes shell body 10, and the top of shell body 10 is equipped with upper cover plate 15, and feed inlet 151 has been seted up to upper cover plate 15, and the detection station sets up corresponding to feed inlet 151.
The top of the outer shell 10 is provided with a first lamp holder 20, and the upper cover plate 15 is arranged on the top of the first lamp holder 20; the first lamp holder 20 may be integrated with the outer shell 10 or may be a separate structure; when the separate structure is adopted, the first lamp holder 20 may be connected to the outer housing 10 through a connection member 17.
The first lamp holder 20 is provided with an inclined surface 201, the first light emitting module 21 is arranged on the inclined surface 201 of the first lamp holder 20, and an included angle between the first direction and the first surface of the workpiece to be detected is an acute angle.
Wherein, this first light-emitting module 21 is equipped with a plurality ofly, and a plurality of first light-emitting module 21 set up around the axis in detecting the station. The first illuminating light 24 emitted by the first light-emitting modules 21 can fully cover the first surface of the workpiece to be detected, so as to completely detect the defects of the first surface.
A first light control line 22 is disposed through the outer casing 10, and the first light control line 22 is used for realizing an electrical connection with the first light emitting module 21, so as to realize power supply and control of the first light emitting module 21.
In this embodiment, the first reflector 23 is disposed on the top of the outer casing 10. Specifically, the first reflecting member 23 is a total reflection prism; a plurality of first reflecting members 23 are arranged, and the plurality of first reflecting members 23 are arranged around the central axis of the detection station; the light reflected by the first reflecting members 23 can fully cover the second surface of the workpiece to be detected, so that the defect detection of the second surface is completely realized.
Further, a shooting window 14 is arranged on the side surface of the outer shell 10; the double-sided detection light source device further comprises a second reflection piece 16, wherein the second reflection piece 16 is arranged on a light path of the first characteristic light and the second characteristic light and used for reflecting the first characteristic light and the second characteristic light to the outside of the shooting window 14, and further the first characteristic light and the second characteristic light can enter a lens 41 of the detection camera 40 to realize defect detection of the surface to be detected through periscopic image capture.
Based on the detection, the detection of the first surface and the second surface of the workpiece to be detected can be realized by using one light-emitting module, so that the detection steps are saved, and the detection efficiency is improved; meanwhile, the detection light path is simple in structure, and detection cost is saved while construction is facilitated.
Further, in the present embodiment, the double-sided detection light source device further includes a second light emitting module 31 for emitting a second illuminating light 34; the second illuminating light 34 is irradiated on the first surface of the workpiece to be inspected along a second direction, which is perpendicular to the first surface of the workpiece to be inspected.
A second light control line 33 is disposed through the outer casing 10, and the second light control line 33 is used for realizing electrical connection with the second light emitting module 31 so as to realize power supply and control of the second light emitting module 31.
The second reflecting member 16 is located on the exit light path of the second illuminating light 34, and the second reflecting member 16 is a beam splitter, and one surface of the beam splitter facing the second light emitting module 31 is plated with an antireflection film, and the other surface is plated with a beam splitting film, so that the second illuminating light 34 can penetrate through the second reflecting member 16 and illuminate the first surface of the workpiece to be detected.
In this embodiment, first light emitting module 21 and second light emitting module 31 all include the lamp plate, and the equipartition has a plurality of LED lamp pearls on the lamp plate, forms the area source.
The second light-emitting module 31 can be matched with the first illuminating light 24 directly illuminating the first surface of the workpiece to be detected, so as to realize the defect detection of the first surface; on the other hand, the redundant light irradiates the total reflection surface of the first reflection assembly 23, and the light is reflected and then supplemented to illuminate the second surface of the workpiece to be detected.
It can be understood that the defect features of the second surface and the whole side surface of the workpiece to be detected are illuminated by the first and second illuminating light beams 24 and 34 together after being reflected by the reflecting surface of the first reflecting assembly 23, and the defect features are projected onto the reflecting surface of the first reflecting assembly 23; finally, the detection lens 41 and the camera 40 which are positioned outside the shooting window 14 shoot the double-sided characteristic defects of the workpiece to be detected in a periscopic mode through the reflection of the light splitting surface of the second reflecting piece 16.
On the other hand, the second light-emitting module 31 can provide background light for detection of the workpiece to be detected, so that features on the workpiece to be detected can be more obviously displayed, and accuracy of a detection result is improved.
Further, the double-sided detection light source device further includes a diffusion plate 32, and the diffusion plate 32 is located on an exit light path of the second irradiation light 34. The second illuminating light 34 is uniformly diffused after passing through the diffusion plate 32, so that it can be uniformly projected onto the first surface of the workpiece to be inspected, to eliminate the granularity of the light, and to weaken the reflection effect.
Further, a material guide plate 11 is arranged below the detection station in the outer shell 10, the material guide plate 11 is inclined downwards, and a discharge end is formed at the lower inclined end of the material guide plate 11; a discharge port 12 is formed at the joint of the side surface of the outer shell 10 and the discharge end; the outer side of the outer shell 10 is provided with a material collecting groove 13, and the material collecting groove 13 is positioned below the discharge hole 12.
During detection, the workpiece to be detected is conveyed to the feeding hole 151 by utilizing conveying devices such as a conveying belt, and then the workpiece to be detected is positioned at the detection station based on external force action such as a clamping piece or a sucking disc, so as to perform detection. If the detection result of the workpiece to be detected is qualified, the workpiece to be detected is continuously conveyed to the next station by using the conveying device; if the detection result is unqualified, the external force can be removed, so that the workpiece to be detected slides downwards to the collecting groove 13 through the material guide plate 11 after falling, and the good and bad distinguishing of the workpiece is realized.
In order not to affect the irradiation effect of the second irradiation light 34 on the workpiece to be detected, the material guide plate 11 is a high-transmittance plate; specifically, the material guiding plate 11 is made of high-transmittance tempered glass, and both surfaces of the material guiding plate are coated with high-transmittance films, so that the second illuminating light 34 can sufficiently penetrate through the material guiding plate 11 and illuminate the workpiece to be detected.
The utility model discloses in, one set of optical module that sends out of collocation on a detection station, can realize the detection on two surfaces simultaneously promptly, simplified the detection step, light path simple structure has consequently saved the detection cost effectively simultaneously to detection efficiency has effectively been improved. Meanwhile, the double-sided detection light source device is high in detection precision, and high-precision detection of tiny components is achieved.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. The utility model provides a two-sided detection light source device for to be located the work piece that waits to detect that detects the station carry out defect detection, include:
a first light emitting module (21) for emitting a first illumination light (24); after a part of the first irradiation light (24) irradiates the first surface of the workpiece to be detected along a first direction, the first irradiation light is reflected by the first surface of the workpiece to be detected to form first characteristic light;
the first reflecting piece (23) is arranged along the light path of the first illuminating light (24), and the first reflecting piece (23) is arranged on one side, far away from the first light-emitting module (21), of the workpiece to be detected; and the other part of the first irradiation light (24) is reflected by the first reflecting piece (23), and after being irradiated on the second surface of the workpiece to be detected, the other part of the first irradiation light is reflected by the second surface of the workpiece to be detected to form second characteristic light.
2. A double-sided detection light source device according to claim 1, comprising an outer casing (10), wherein an upper cover plate (15) is disposed on the top of the outer casing (10), a feeding hole (151) is disposed on the upper cover plate (15), and the detection station is disposed corresponding to the feeding hole (151).
3. The double-sided detection light source device according to claim 2, wherein a first lamp holder (20) is disposed on a top of the outer housing (10), an inclined surface (201) is disposed on the first lamp holder (20), and the first light emitting module (21) is disposed on the inclined surface (201) of the first lamp holder (20);
an included angle between the first direction and the first surface of the workpiece to be detected is an acute angle.
4. The double-sided detection light source device according to claim 2, wherein a shooting window (14) is opened on a side surface of the outer casing (10);
the double-sided detection light source device further comprises a second reflecting piece (16), wherein the second reflecting piece (16) is arranged on the light path of the first characteristic light ray and the second characteristic light ray and used for reflecting the first characteristic light ray and the second characteristic light ray to the outside of the shooting window (14).
5. A double-sided detection light source device according to claim 4, further comprising a second light emitting module (31) for emitting a second illuminating light (34); the second irradiation light (34) irradiates the first surface of the workpiece to be detected along a second direction;
the second direction is perpendicular to the first surface of the workpiece to be detected.
6. A double-sided detection light source device according to claim 5, wherein the second reflecting member (16) is a beam splitter, and the second reflecting member (16) is located on an exit light path of the second irradiation light (34).
7. A double-sided detection light source arrangement according to claim 5, further comprising a diffuser plate (32), said diffuser plate (32) being located on an exit light path of said second illumination light (34).
8. A double-sided detection light source device according to claim 2, wherein a material guide plate (11) is arranged below the detection station in the outer casing (10), the material guide plate (11) is inclined downwards, and a discharge end is formed at the lower inclined end of the material guide plate (11);
a discharge port (12) is formed at the joint of the side surface of the outer shell (10) and the discharge end; a material collecting groove (13) is formed in the outer side surface of the outer shell (10), and the material collecting groove (13) is located below the discharge hole (12); the guide plate (11) is high-transmittance toughened glass with antireflection films plated on both sides.
9. A double-sided detection light source device according to claim 1, wherein a plurality of first reflecting members (23) are provided, and the plurality of first reflecting members (23) are provided around a central axis of the detection station; the first reflecting member (23) is a total reflection prism.
10. The double-sided detection light source device according to claim 1, wherein the first light emitting module (21) is provided in a plurality, and the plurality of first light emitting modules (21) are arranged around a central axis of the detection station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122092266.1U CN218180691U (en) | 2021-08-31 | 2021-08-31 | Double-sided detection light source device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122092266.1U CN218180691U (en) | 2021-08-31 | 2021-08-31 | Double-sided detection light source device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218180691U true CN218180691U (en) | 2022-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122092266.1U Active CN218180691U (en) | 2021-08-31 | 2021-08-31 | Double-sided detection light source device |
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|---|---|
| CN (1) | CN218180691U (en) |
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2021
- 2021-08-31 CN CN202122092266.1U patent/CN218180691U/en active Active
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