CN210465275U - Roller detection device - Google Patents
Roller detection device Download PDFInfo
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- CN210465275U CN210465275U CN201920338233.0U CN201920338233U CN210465275U CN 210465275 U CN210465275 U CN 210465275U CN 201920338233 U CN201920338233 U CN 201920338233U CN 210465275 U CN210465275 U CN 210465275U
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- 238000001514 detection method Methods 0.000 title claims abstract description 27
- 230000007547 defect Effects 0.000 claims abstract description 19
- 238000007689 inspection Methods 0.000 claims description 3
- 208000037656 Respiratory Sounds Diseases 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 239000011324 bead Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000005286 illumination Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
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- 230000007246 mechanism Effects 0.000 description 2
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- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a roller detection device, include: the device comprises a speed multiplying chain, a light source and a camera, wherein the speed multiplying chain is used for conveying rollers; a light source for illuminating the roller; and the camera is used for acquiring an outer diameter surface image of the roller and identifying the defects of the roller according to the outer diameter surface image. The embodiment of the utility model discloses roller detection device can detect defects such as the crackle of roller external diameter surface, cuts material, scotch, has expanded the defect type that roller outward appearance detected, has improved outward appearance defect recognition rate and discernment precision.
Description
Technical Field
The utility model relates to a detection technology, in particular to roller detection device.
Background
The roller is an annular part of a centripetal rolling bearing with one or more raceways, which is divided into an inner ring and an outer ring according to the positions of the raceways, is an important component of the bearing, is an important part in modern mechanical equipment, is widely used in various industries, and therefore, the quality of the roller is very important. The last link of the roller production process is the detection of the roller, and whether the outer diameter surface and other appearances of the roller are smooth and complete needs to be detected.
In the prior art, the appearance detection of the roller is mainly manual detection, and even if machine detection is used, manual reinspection is needed due to low detection precision.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a roller detection device aims at solving the problem that roller detection precision is low among the prior art. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
An embodiment of the utility model provides a roller detection device, include: a speed multiplier chain, a light source and a camera, wherein,
a double speed chain for transporting the rollers;
a light source for illuminating the roller;
and the camera is used for acquiring an outer diameter surface image of the roller and identifying the defects of the roller according to the outer diameter surface image.
Optionally, the light source comprises a diffusely reflective dome light source, wherein,
the diffuse reflection dome light source comprises a hemispherical inner wall at the top and a lamp bead at the bottom;
the lamp bead is used for emitting light beams to the hemispherical inner wall of the top;
and the hemispherical inner wall is used for uniformly illuminating the roller after the light beam is subjected to diffuse reflection.
Optionally, the hemispherical inner wall comprises a diffuse reflective coating for diffusely reflecting the light beam.
Optionally, the detection device further comprises a workbench and a fixed bracket, wherein,
the workbench is used for supporting the fixed support and the speed doubling chain;
the fixed support is arranged on the workbench and used for fixing the light source and the camera.
Optionally, the fixing bracket further comprises a sliding rail, wherein,
and the sliding rail is used for adjusting the positions of the camera and the light source on the fixed support.
Optionally, the detection device further comprises a motor, and the motor is used for driving the speed-multiplying chain to move.
Optionally, the motor comprises a servo motor or a stepper motor.
Optionally, the camera further includes a lens, and the lens includes a fixed focus lens.
The embodiment of the utility model discloses roller detection device can detect defects such as the crackle of roller external diameter surface, cuts material, scotch, has expanded the defect type that roller outward appearance detected, has improved outward appearance defect recognition rate and discernment precision.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a schematic view of a roller detection device in an exemplary embodiment.
Detailed Description
The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. Embodiments may be referred to herein, individually or collectively, by the term "utility model" merely for convenience and without intending to voluntarily limit the scope of this application to any single utility model or utility model concept if more than one is in fact disclosed. Herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The embodiment of the utility model discloses roller detection device, as shown in FIG. 1, include: a speed multiplier chain 7, a light source 5 and a camera 2, wherein,
a double speed chain 7 for conveying the rollers 6;
a light source 5 for illuminating the roller 6;
and the camera 2 is used for acquiring an outer diameter surface image of the roller 6 and identifying the defects of the roller 6 according to the outer diameter surface image.
The roller detection device comprises a speed-multiplying chain 7 which can be used for carrying and transmitting the roller 6 to be detected, and the speed-multiplying chain 7 comprises a chain which can be a sleeve roller conveying chain and can also be a chain with other structures. Generally, the transmission speed of the speed-doubling chain 7 should be accurate and stable to ensure accurate and synchronous transmission rollers, and further, the transmission speed of the speed-doubling chain 7 may be a uniform speed, and the speed value may be determined according to the detection speed of the roller detection device and coordinated with the transmission speeds of the feeding mechanism and the discharging mechanism.
Optionally, the roller detecting device may further include a servo motor for driving the speed-multiplying chain 7 to move. Further, the servo motor may include a brushless motor or a stepping motor, etc.
The servo motor can be used for driving the speed-multiplying chain 7, and the roller 6 is driven by the speed-multiplying chain 7 to move continuously at a constant speed. Generally, the speed of the servo motor driving speed-doubling chain 7 can be determined according to requirements.
The roller inspection apparatus includes a light source 5 that provides illumination of the roller 6 at a suitable intensity, and further, the light source 5 provides uniform illumination of the roller 6 in order to better reflect the defect characteristics of the outer diameter surface of the roller 6.
The light source 5 may include various types, and various types of light sources may be used alone or in combination. The skilled person can make reasonable selections according to the diameter and length of the roller 6, the surface characteristics, the defect characteristics to be detected, and the like, so as to ensure that the defect characteristics of the outer diameter surface of the roller 6 to be detected are clearly visible. The light emitted from the light source 5 may include visible light, such as red light, white light, blue light, and the like, and may also include invisible light, such as infrared light, ultraviolet light, and the like.
Alternatively, the light source 5 may be disposed above the double speed chain 7 for illuminating the roller 6 from above downward.
Further alternatively, the light source 5 may comprise a diffusely reflecting dome light source, wherein,
the diffuse reflection dome light source comprises a hemispherical inner wall at the top and a lamp bead at the bottom;
the lamp bead is used for emitting light beams to the hemispherical inner wall of the top;
and the hemispherical inner wall is used for uniformly illuminating the roller after the light beam is subjected to diffuse reflection.
In particular, the diameter of the hemispherical inner wall can be selected according to the diameter and length of the roller 6, according to the environmental requirements of the specific implementation.
Further, the hemispherical inner wall may include a diffuse reflective coating, wherein the diffuse reflective coating is for diffusely reflecting the light beam. The diffuse reflection coating can enhance the reflection intensity of the hemispherical inner wall to light beams, and improve the uniformity of the brightness of reflected light, thereby bringing better lighting effect.
Further alternatively, the light source 5 may comprise an annular light source, and the angle between the light source irradiation direction and the horizontal plane may be determined according to the diameter and the length of the roller 6 to be detected. The toroidal light source can provide uniform illumination brightness and better exhibit the defect characteristics of the outer diameter surface of the roller 6.
When the light source 5 includes an annular light source, the annular light source may be disposed above the double-speed chain 7, and the camera 2 may acquire an image of the roller 6 to be detected through a hollow portion of the annular light source, and the annular light source may provide a good and uniform illumination effect.
Alternatively, the light source 5 may include a surface light source, which may be disposed above or on the side of the double speed chain 7 for illuminating the roller 6 to be detected.
The roller detecting device includes a camera 2 which can acquire an image of the outer diameter surface of the roller 6.
Optionally, the camera 2 may acquire the outer diameter surface image of the roller 6 at different vertical positions according to specific requirements for shooting the image, and for example, the camera 2 may acquire the outer diameter surface image of each roller of the plurality of rollers to be detected at different vertical positions respectively.
Alternatively, the camera 2 may also acquire an image of the outer diameter surface of the roller 6 only in a fixed vertical position. Further, when the camera 2 captures an image of the outer diameter surface of the roller 6 only at a fixed vertical position, the camera 2 may include the lens 3, wherein the lens 3 may include a fixed focus lens. The image shot by the fixed-focus lens is clear and stable, the focusing is accurate, the picture is fine and smooth, and the surface defect characteristics of the outer diameter of the roller 6 to be detected can be better reflected.
Optionally, the roller detecting device may further include a table 8 and a fixing bracket 4, wherein,
a worktable 8 for supporting the fixed bracket 4 and the double speed chain 7;
the fixing bracket 4 is provided on the table 8 for fixing the light source 5 and the camera 2.
As a further alternative, the fixed bracket 4 may also comprise a sliding rail 1, wherein,
and the sliding rail 1 is used for adjusting the positions of the camera 2 and the light source 5 on the fixed support 4.
The slide rail 1 can be used to adjust the positions of the camera 2 and the light source 5 in the vertical direction, for example, the height of the camera 2 can be adjusted by rotating a nut disposed on the slide rail 1, and the position of the camera 2 can be locked by a locking screw disposed on the slide rail 1. In the implementation process, a person skilled in the art can also adjust the position of the camera 2 or the light source 5 on the sliding rail 1 alone.
The embodiment of the utility model discloses roller detection device can detect defects such as the crackle of roller external diameter surface, cuts material, scotch, has expanded the defect type that roller outward appearance detected, has improved outward appearance defect recognition rate and discernment precision to can effectively improve roller manufacturing enterprise's production efficiency, reduce the cost of labor.
When implementing the technical solution disclosed in the present invention, a person skilled in the art may exemplarily use the following method:
s101, placing a roller 6 to be detected on a double-speed chain 7;
s102, the speed multiplying chain 7 drives the roller 6 to move to a shooting area of the camera 2;
s103, under the irradiation of the light source 5, the camera 2 detects the roller 6;
and S104, removing the detected roller 6.
By repeating the above method, defect detection of a large number of rollers 6 can be completed.
It is to be understood that the present invention is not limited to the procedures and structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims (7)
1. A roller detection device comprising: a speed multiplier chain, a light source and a camera, wherein,
the speed multiplying chain is used for conveying the rollers;
the light source is used for illuminating the roller;
the camera is used for acquiring an outer diameter surface image of the roller and identifying the defects of the roller according to the outer diameter surface image.
2. The inspection device of claim 1, wherein said light source is disposed above said double speed chain for illuminating said rollers from above downward.
3. The inspection device of claim 1, further comprising a table and a stationary support, wherein,
the workbench is used for supporting the fixed support and the speed multiplying chain;
the fixed support is arranged on the workbench and used for fixing the light source and the camera.
4. The detection apparatus of claim 3, wherein the fixed support further comprises a slide track, wherein,
the sliding rail is used for adjusting the positions of the camera and the light source on the fixed support.
5. The sensing device of claim 1, further comprising a motor for driving the multiple speed chain to move.
6. A testing device according to claim 5 wherein the motor comprises a servo motor or a stepper motor.
7. The detection device of claim 1, wherein the camera further comprises a lens, the lens comprising a fixed focus lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920338233.0U CN210465275U (en) | 2019-03-15 | 2019-03-15 | Roller detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920338233.0U CN210465275U (en) | 2019-03-15 | 2019-03-15 | Roller detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210465275U true CN210465275U (en) | 2020-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920338233.0U Active CN210465275U (en) | 2019-03-15 | 2019-03-15 | Roller detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210465275U (en) |
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2019
- 2019-03-15 CN CN201920338233.0U patent/CN210465275U/en active Active
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Effective date of registration: 20231019 Address after: Room B1179, 1st Floor, Building 1 (North), No. 368 Liuhe Road, Binjiang District, Hangzhou City, Zhejiang Province, 310057 Patentee after: Hangzhou deep Vision Technology Co.,Ltd. Address before: No. 6, 2nd Floor, Building 1, No. 9 Shangdi East Road, Haidian District, Beijing, 100085 Patentee before: Beijing Deep Vision Technology Co.,Ltd. |