CN210198992U - Magnetic shoe appearance defect detection structure - Google Patents
Magnetic shoe appearance defect detection structure Download PDFInfo
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- CN210198992U CN210198992U CN201920846277.4U CN201920846277U CN210198992U CN 210198992 U CN210198992 U CN 210198992U CN 201920846277 U CN201920846277 U CN 201920846277U CN 210198992 U CN210198992 U CN 210198992U
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- magnetic shoe
- appearance defect
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Abstract
The utility model provides a magnetic shoe appearance imperfections detects structure, including the camera that is used for shooing the magnetic shoe image, arrange coaxial direct projection lamp and diffusion lamp between the magnetic shoe that the camera is waited to detect, direct projection lamp includes by the parallel light source of perpendicular to the incident of the optical axis direction of camera to and the light reflection that sends parallel light source be parallel with the optical axis of camera and the speculum that coincides; the diffusion lamp comprises an arc cover with openings at the upper end and the lower end, and an annular light source which is arranged at the bottom of the arc cover and irradiates towards the inner wall direction of the arc cover. The utility model discloses an illumination mode that this scheme set up can make the magnetic shoe that puts at present reach the complete no illumination dead angle of upper surface all around, and can avoid the mutual influence between direct injection light source and the annular light source, makes the light intensity on whole magnetic shoe surface unanimous, can more outstanding magnetic shoe surface's defective position for with improve follow-up image defect analysis speed and precision.
Description
Technical Field
The utility model relates to a magnetic shoe detection area, in particular to provide detection structure of no dead angle illumination effect when carrying out appearance defect to the magnetic shoe.
Background
In the prior art, when the defect detection is performed on the surface of the magnetic shoe, the surface of the magnetic shoe to be detected is usually illuminated by using a single light source or a lighting mode of a plurality of light sources, and a shadow is easily formed on the backlight surface of the magnetic shoe when the single light source is adopted, so that the quality of the image on the surface of the magnetic shoe shot by a camera is reduced, and the error is large during later-stage image analysis. When a plurality of light sources are adopted, the light intensity at the direct irradiation point of the magnetic tile is higher and the surrounding light intensity is weaker due to the direct irradiation among the light sources, so that the brightness is not five, and the later image analysis can be influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a carry out appearance defect to the magnetic shoe and examine time measuring, can provide the detection structure of no dead angle illumination effect.
In particular, the utility model provides a magnetic shoe appearance imperfections detects structure, including the camera that is used for shooing the magnetic shoe image, arrange coaxial direct lighting lamp and diffusion lamp between the magnetic shoe that the camera is waited to detect, the direct lighting lamp includes by the perpendicular to the parallel light source of the incident of the optical axis direction of camera to and reflect the light that parallel light source sent for with the optical axis of camera is parallel and the speculum that coincides; the diffusion lamp comprises an arc cover with openings at the upper end and the lower end, and an annular light source which is arranged at the bottom of the arc cover and irradiates towards the inner wall direction of the arc cover.
The utility model discloses an in one embodiment, the direct-emitting lamp still includes the rectangle casing, open respectively at the relative both ends of rectangle casing has the shooting hole and the light-emitting hole that supply the camera to find a view the usefulness, collimated light source installs the shooting hole with lateral wall department between the light-emitting hole, the one end of speculum is located the light-emitting hole is kept away from collimated light source's one side, the relative other end to collimated light source direction slope just crosses the shooting hole.
In one embodiment of the present invention, an optical lens perpendicular to the optical axis of the camera and having a light condensing effect is disposed between the parallel light source and the reflector.
In an embodiment of the present invention, the top opening of the arc cover is connected to the light-emitting hole of the rectangular casing, and a notch for the magnetic shoe to enter and leave is provided at a position opposite to the bottom of the arc cover.
In an embodiment of the present invention, an annular groove extending toward the center line direction is installed at the bottom of the arc cover, and the annular light source is installed in the annular groove.
In an embodiment of the present invention, the annular groove is provided with a heat conduction layer at the bottom thereof for dissipating heat from the annular light source.
In an embodiment of the present invention, the rectangular housing is connected to the arc cover through a connecting member having a hole in the middle.
The utility model discloses an in an embodiment, the connecting piece includes that rectangle and center have the fixed plate of hole the relative both sides limit of hole is provided with respectively to the regulating plate that stretches out perpendicularly with one side L shape hoist and mount board, two of two mutual dispositions is installed to the relative one side of regulating plate on the fixed plate relative hem and relative hem of L shape hoist and mount board encloses into a circular hollow.
The utility model discloses an in the embodiment, still including fixed the camera with the rectangular frame of connecting piece, the camera passes through the hoisting of camera frame and is in rectangular frame's upper portion, the connecting piece pass through the fixed plate all around the side with rectangular frame connects.
The utility model discloses an in the embodiment, the camera mount includes that a rectangle and center have the lap-joint plate of finding a view the hole the relative both sides vertical fixation who finds a view the hole has the fixed block that possesses the adjustment tank two install the hanging frame of fixed camera through the adjustment tank between the fixed block.
The utility model discloses an illumination mode that this scheme set up can make the magnetic shoe that puts at present reach the complete no illumination dead angle of upper surface all around, and can avoid the mutual influence between direct injection light source and the annular light source, makes the light intensity on whole magnetic shoe surface unanimous, can more outstanding magnetic shoe surface's defective position for with improve follow-up image defect analysis speed and precision.
Drawings
Fig. 1 is a schematic structural diagram of a detection device according to an embodiment of the present invention;
FIG. 2 is a schematic view of a connector structure according to an embodiment of the present invention;
FIG. 3 is a schematic view of a rectangular frame connection according to an embodiment of the present invention;
fig. 4 is a schematic view of the camera frame of fig. 3.
Detailed Description
As shown in fig. 1, the utility model discloses a magnetic shoe appearance defect detecting structure is disclosed in an embodiment, it can acquire present magnetic shoe image under the illumination condition in no dead angle to magnetic shoe 40 to improve the analysis precision to magnetic shoe surface defect. Specifically comprises a camera 30 for taking an image of the magnetic shoe, and a coaxial direct light 10 and a diffusion light 20 arranged between the camera 30 and the magnetic shoe 40 to be detected; the direct light 10 includes a parallel light source 11 incident from a direction perpendicular to the optical axis of the camera 30, and a reflector 12 reflecting light emitted from the parallel light source 11, wherein the reflector 12 makes the reflected light parallel to and coincident with the optical axis of the camera 30; the diffusion lamp 20 includes an arc-shaped cover 21 having upper and lower ends opened, respectively, to provide diffuse reflection, and a ring-shaped light source 22 installed at the bottom of the arc-shaped cover 21 to emit light toward the inner wall of the arc-shaped cover 21. The direct light 10 and the diffused light 20 may both employ LED light sources.
When the analysis device works, the camera 30 is vertically placed above the magnetic tile 40 to be analyzed so as to obtain the upper surface image of the magnetic tile 40 from the upper side, the parallel light source 11 of the direct light lamp 10 emits parallel light from the direction vertical to the optical axis of the camera 30, then the parallel light is reflected to the upper surface of the magnetic tile 40 by the reflector 12, the annular light source 22 of the diffusion lamp 20 emits light to the inner surface of the arc-shaped cover 21, the emitted light is diffused and reflected on the inner surface of the arc-shaped cover 21 and then is converged to the peripheral surface of the middle magnetic tile 40, so that the upward upper surface and the corresponding peripheral surface of the magnetic tile 40 are completely illuminated without dead angles, and at the moment, the camera 30 is started to photograph the magnetic tile 40 so as to obtain the surface image of the defect magnetic tile 40 to be analyzed.
Through the illumination mode that this scheme set up, can make the magnetic shoe put at present all around and the upper surface does not have the illumination dead angle completely, and can avoid the interact between direct light source and the annular light source, make the light intensity on whole magnetic shoe surface unanimous, can more outstanding magnetic shoe surface's defect position for with improve follow-up image defect analysis speed and precision.
By reflecting the light of the collimated light source 11 by the reflector 12, the position of the collimated light source 11 can be prevented from affecting the view of the camera 30, and the scattering of the direct light can be prevented, so that the direct light can be more uniformly and directly irradiated to the upper surface of the magnetic shoe 40.
The structure of the arc-shaped cover 21 can make the light emitted by the annular light source 22 only diffuse and reflect in the arc-shaped cover 21, so that the light intensity at each position in the arc-shaped cover 21 is consistent, and the shadow formed on the side surface or the back surface after the light source in a single direction directly irradiates the magnetic tile 40 is avoided, thereby improving the illumination effect of the complex structure around the magnetic tile 40.
In order to conveniently install the direct lighting lamp 10, a hollow rectangular casing 13 may be provided, opposite ends of the rectangular casing 13 are respectively provided with a shooting hole 131 for viewing by the camera 30 and a light outlet 132 for emitting light from the direct lighting lamp 10, the parallel light source 11 is installed at an inner side wall between the shooting hole 131 and the light outlet 132, the light outlet faces the optical axis direction of the camera 30, the reflector 12 is installed in an inclined manner, or the reflecting surface of the reflector 12 is in an inclined state, the bottom end of the reflector (reflecting surface) 12 is located at a side of the light outlet 132 away from the parallel light source 11, and the top end is inclined towards the parallel light source 11 and passes over the shooting hole 131. The reflector (reflecting surface) 12 directly faces the collimated light source 11 and has a reflection angle of 45 degrees, so that light emitted from the collimated light source 11 is refracted and emitted through the light exit hole 132 at the bottom, and the optical axis of the camera 30 passes through the shooting hole 131 and then also exits through the light exit hole 132 to coincide with the light reflected from the collimated light source 11.
The structure of the rectangular housing 13 can limit the light of the collimated light source 11 to the inside of the rectangular housing 13, and facilitate the installation of the components.
In order to avoid scattering of light emitted from the collimated light source 11, an optical lens 14 perpendicular to the optical axis of the camera 30 and having a light condensing effect may be disposed between the collimated light source 11 and the reflector 12.
The top opening of the arc cover 21 can be connected with the light outlet 132 of the rectangular housing 13 directly or through the connecting piece 50, and the opposite sides of the bottom of the arc cover 21 are provided with notches 25 for the magnetic tiles 40 to enter and leave. When the detection device is used, the arc cover 21 of the whole detection device can be placed on a detection belt for conveying the magnetic tiles 40, the magnetic tiles 40 enter and leave from the two notches 25 of the arc cover 21, the camera 30 shoots an upper surface image of the current state when the magnetic tiles 40 are positioned in the arc cover 21, the magnetic tiles 40 are in a turned-over state on the next detection belt, the upper surface image of the turned-over magnetic tiles 40 is obtained again through the detection device, and the defect conditions of the front surface and the back surface of each magnetic tile 40 can be obtained through image analysis software.
For convenience of installation, an annular groove 24 extending toward the center line direction may be installed at the bottom of the arc-shaped cover 21, and the annular light source 22 is installed in the annular groove 24. The specific annular light source 22 can be an LED light bar or a light bead, and is uniformly and intermittently installed in the annular groove 24, and the side edge of the annular groove 24 can also be used for limiting the light of the annular light source 22 to directly irradiate the inside of the arc-shaped cover 21. A heat conductive layer 23 for dissipating heat from the ring light source 22 may be installed at the bottom of the ring groove 24 to disperse the amount of heat generated from the ring light source 22 as quickly as possible.
As shown in fig. 2, the connecting member 50 connecting the rectangular housing 13 and the arc cover 21 may have the following structure: comprises a rectangular fixing plate 51 with a hole 511 at the center, the shape of the hole 511 can be the same as the light outlet 132 of the rectangular housing 13, or can be a rectangular hole, the two opposite sides of the hole 511 are respectively provided with an adjusting plate 52 extending perpendicularly to the same side, the adjusting plate 52 is provided with a strip-shaped groove 521 perpendicular to the fixing plate 51, the adjusting plate 52 can be formed by bending the material at the original hole 511, the rectangular shell 13 is fixed with the adjusting plate 52 by a bolt passing through the strip-shaped groove 521, and the distance of the rectangular shell 13 relative to the fixing plate 51 can be adjusted, two L-shaped hoisting plates 53 which are oppositely arranged are arranged on one side, opposite to the adjusting plate 52, of the fixed plate 51, the folded edges 531 of the two L-shaped hoisting plates 53 are opposite, the opposite folded edges 531 enclose a circular space 532, the top end of the arc-shaped cover 21 is connected with the L-shaped hoisting plates 53, and an opening in the top of the arc-shaped cover 21 corresponds to the circular space 532 enclosed by the two folded edges 531.
The connector 50 can connect the rectangular housing 13 and the arc-shaped cover 21 together, and can adjust the relative distance between the two without affecting the optical axis of the camera 30 and the incidence of the direct light 10.
As shown in fig. 3, in order to conveniently place the whole detection device, the detection device may further include a rectangular frame 70 for fixing the camera 30 and the connecting member 50, the rectangular frame 70 is a three-dimensional frame made of a sectional material, the camera 30 is hung on the upper portion of the rectangular frame 70 through the camera frame 60, the lens is vertically downward, and the connecting member 50 is installed inside the rectangular frame 70 through the peripheral sides of the fixing plate 51. The rectangular frame 70 can be used to support the whole detection device above the detection belt of the magnetic tile 40 conveniently and keep the camera 30 and the light source stable.
As shown in fig. 4, the specific camera frame 60 includes a rectangular bridging plate 61 having a view-finding hole 611 at the center, the bridging plate 61 is fixed by bolts by being lapped on the top of the rectangular frame 70 through the peripheral sides, fixing blocks 62 having an adjusting groove 621 are vertically fixed at the opposite sides of the view-finding hole 611, the fixing blocks 62 are located on the lower surface of the fixed bridging plate 61, the adjusting groove 621 is vertical to the bridging plate 62, a hanging frame 63 having a through hole 631 at the middle is installed between the two fixing blocks 62 through the adjusting groove 621, the camera 30 is installed at the hanging frame 63 through the view-finding end, the through holes 631 of the view-finding hole 611 and the hanging frame 63 respectively correspond to the position of the view-finding window of the camera 30, and the hanging frame 63 can adjust the distance relative to the bridging plate 61 through the position of the adjusting groove 621.
The mounted detection device is placed on a detection belt for conveying the magnetic shoe 40 through a rectangular frame 70, a camera 30 is vertically hung above the rectangular frame 70 through a camera frame 60, a rectangular shell 13 and an arc cover 21 are fixed inside the rectangular frame 70 through a connecting piece 50 and located below the camera 30, a lens of the camera 30 corresponds to the position of a shooting hole 131 of the rectangular shell 13, and two notches 25 at the bottom of the arc cover 21 are opposite to the conveying direction of the detection belt respectively.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. A magnetic tile appearance defect detection structure comprises a camera for shooting an image of a magnetic tile, and is characterized in that a direct light and a diffusion light which are coaxial are arranged between the camera and the magnetic tile to be detected, wherein the direct light comprises a parallel light source which is incident from a direction perpendicular to an optical axis of the camera, and a reflector which reflects light emitted by the parallel light source into a direction parallel to and coincident with the optical axis of the camera; the diffusion lamp comprises an arc cover with openings at the upper end and the lower end, and an annular light source which is arranged at the bottom of the arc cover and irradiates towards the inner wall direction of the arc cover.
2. The magnetic tile appearance defect detecting structure of claim 1,
the direct-emitting lamp further comprises a rectangular shell, the two opposite ends of the rectangular shell are respectively provided with a shooting hole and a light-emitting hole for the camera to view, the parallel light source is arranged on the side wall between the shooting hole and the light-emitting hole, one end of the reflector is located at one side, away from the light-emitting hole, of the parallel light source, and the other opposite end inclines towards the direction of the parallel light source and crosses over the shooting hole.
3. The magnetic tile appearance defect detecting structure of claim 2,
an optical lens which is perpendicular to the optical axis of the camera and has a light condensation effect is arranged between the parallel light source and the reflector.
4. The magnetic tile appearance defect detecting structure of claim 2,
the top opening of the arc cover is connected with the light outlet hole of the rectangular shell, and notches for the magnetic shoes to enter and leave are arranged at the positions, opposite to the bottom of the arc cover.
5. The magnetic tile appearance defect detecting structure of claim 1,
the bottom of the arc-shaped cover is provided with an annular groove extending towards the direction of the central line, and the annular light source is arranged in the annular groove.
6. The magnetic tile appearance defect detecting structure of claim 5,
and the bottom of the annular groove is provided with a heat conduction layer for radiating the annular light source.
7. The magnetic tile appearance defect detecting structure of claim 2,
the rectangular shell is connected with the arc cover through a connecting piece with a hole in the middle.
8. The magnetic tile appearance defect detecting structure of claim 7,
the connecting piece comprises a rectangular fixing plate with a hole in the center, adjusting plates perpendicularly extending towards the same side are arranged on two opposite side edges of the hole respectively, two L-shaped hoisting plates which are arranged oppositely are mounted on one side, opposite to the adjusting plates, of the fixing plate, and the two opposite hems of the L-shaped hoisting plates enclose a circular hollow body.
9. The magnetic tile appearance defect detecting structure of claim 8,
the camera is hung on the upper portion of the rectangular frame through the camera frame, and the connecting piece is connected with the rectangular frame through the peripheral side edges of the fixing plate.
10. The magnetic tile appearance defect detecting structure of claim 9,
the camera frame comprises a rectangular lapping plate with a view finding hole in the center, fixed blocks with adjusting grooves are vertically fixed on two opposite sides of the view finding hole, and a hanging frame for fixing the camera is installed between the two fixed blocks through the adjusting grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920846277.4U CN210198992U (en) | 2019-06-05 | 2019-06-05 | Magnetic shoe appearance defect detection structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920846277.4U CN210198992U (en) | 2019-06-05 | 2019-06-05 | Magnetic shoe appearance defect detection structure |
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| CN210198992U true CN210198992U (en) | 2020-03-27 |
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| CN201920846277.4U Active CN210198992U (en) | 2019-06-05 | 2019-06-05 | Magnetic shoe appearance defect detection structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110108725A (en) * | 2019-06-05 | 2019-08-09 | 深圳至汉装备科技有限公司 | A kind of magnetic shoe open defect detection structure |
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2019
- 2019-06-05 CN CN201920846277.4U patent/CN210198992U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110108725A (en) * | 2019-06-05 | 2019-08-09 | 深圳至汉装备科技有限公司 | A kind of magnetic shoe open defect detection structure |
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