CN211651523U - Machine vision detection system for inner and outer diameter cylindrical surfaces of bearing - Google Patents
Machine vision detection system for inner and outer diameter cylindrical surfaces of bearing Download PDFInfo
- Publication number
- CN211651523U CN211651523U CN201922339676.4U CN201922339676U CN211651523U CN 211651523 U CN211651523 U CN 211651523U CN 201922339676 U CN201922339676 U CN 201922339676U CN 211651523 U CN211651523 U CN 211651523U
- Authority
- CN
- China
- Prior art keywords
- bearing
- detection
- detected
- station
- light source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model provides a machine vision detecting system of external diameter face of cylinder in bearing, machine vision detecting system includes: the bearing detection device comprises a support structure, a detection device and a detection device, wherein the support structure is provided with a detection station, and the detection station is used for placing a bearing to be detected, so that an annular top surface and an annular bottom surface of the bearing to be detected face to two opposite sides of the support structure respectively; a first detection assembly disposed on one side of the mounting structure; the first detection assembly is used for emitting detection light towards the annular top surface and imaging based on the detection light reflected by the bearing to be detected. Use the utility model provides a machine vision detecting system can detect the interior external diameter face of cylinder that waits to detect the bearing to can obtain more even formation of image background, when improving detection quality and efficiency, help more sensitive discernment bearing defect.
Description
Technical Field
The utility model relates to a bearing defect detects technical field, and more specifically says, relates to a machine vision detecting system of bearing internal and external diameter face of cylinder.
Background
Bearings are a very basic and critical transmission element in the mechanical industry and are extremely widely used. During the production process of the bearing, due to uncertain factors in a processing technology or process control, defects such as pits, bulges, scratches, material cutting and the like can occur on the surface of the bearing, and the defects can cause the quality problems that the transmission efficiency is low when the bearing is in operation and serious accidents are caused when the bearing is in operation. Therefore, it is extremely important to strictly control the quality of the produced bearing, and it is very necessary to perform a strict appearance quality check of the bearing at the production end.
At present, the detection of the appearance defects of the bearing is mainly observed by artificial naked eyes. Because the bearing detection area and the target content are more, the manual detection efficiency is low, the resolution ratio of the manual naked eyes is low, fine defects are easy to leak, the manual subjective judgment is carried out, and the consistency of multi-person detection is poor; the stability of the long-term detection is poor due to the influence of factors such as fatigue and the like; in addition, the labor cost is gradually increased, and great operation pressure is brought to bearing production enterprises.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a machine vision detecting system on outer diameter face of cylinder in bearing can detect the interior outer diameter face of cylinder that waits to detect the bearing to can obtain more even formation of image background, help more sensitive discernment bearing defect.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
a machine vision inspection system for the inner and outer diameter cylindrical surfaces of a bearing, the machine vision inspection system comprising:
the bearing detection device comprises a support structure, a detection device and a detection device, wherein the support structure is provided with a detection station, and the detection station is used for placing a bearing to be detected, so that an annular top surface and an annular bottom surface of the bearing to be detected face to two opposite sides of the support structure respectively;
a first detection assembly disposed on one side of the mounting structure; the first detection assembly is used for emitting detection light towards the annular top surface and imaging based on the detection light reflected by the bearing to be detected.
Preferably, in the machine vision inspection system, the system further includes: the second detection assembly is arranged on the other side of the support structure and used for emitting detection light towards the annular bottom surface and imaging the detection light based on the reflection of the bearing to be detected.
Preferably, in the machine vision inspection system, the first inspection assembly and the second inspection assembly are symmetrically arranged on two sides of the support structure.
Preferably, in the machine vision inspection system, the first inspection unit includes: the first imaging module and the first light source module; when the bearing to be detected placed on the detection station is subjected to defect detection, detection light emitted by the first light source module obliquely irradiates an inner diameter cylindrical surface and an outer diameter cylindrical surface of the bearing to be detected; the first imaging module images based on the collected reflected light;
the second detection assembly includes: the second imaging module and the second light source module; when the bearing to be detected placed on the detection station is subjected to defect detection, detection light emitted by the second light source module obliquely irradiates the inner diameter cylindrical surface and the outer diameter cylindrical surface of the bearing to be detected; the second imaging module images based on the acquired reflected light.
Preferably, in the machine vision inspection system, the first light source module and the second light source module are both rectangular planar LED array light sources.
Preferably, in the machine vision inspection system, when the bearing to be inspected is located on the inspection station, the axis of the bearing to be inspected is parallel to the horizontal plane;
the LED array light source is perpendicular to the horizontal plane, the size of the LED array light source in the vertical direction is larger than the outer diameter of the bearing to be detected, and the size of the LED array light source in the horizontal direction is larger than the maximum distance difference between the inner diameter cylindrical surface and the outer diameter cylindrical surface on the imaging plane.
Preferably, in the machine vision inspection system, the first imaging module and the second imaging module each include a photosensitive lens and an area-array camera, the photosensitive lens is configured to collect detection light reflected by the bearing to be inspected, and the area-array camera is configured to image based on reflected light collected by the photosensitive lens.
Preferably, in the machine vision inspection system, the inspection station has a rotating roller, and when the bearing to be inspected is subjected to defect inspection, the bearing to be inspected is located on the rotating roller, and the rotating roller is used for driving the bearing to be inspected to rotate, so that the first inspection assembly and the second inspection assembly can acquire an image of one circle of rotation of the bearing to be inspected.
Preferably, in the machine vision inspection system, the support structure is provided with temporary stations both upstream and downstream of the inspection station;
the machine vision detection system further comprises a toggle type bearing translation structure, and the toggle type bearing translation structure is used for moving one bearing to be detected from the detection station to the downstream temporary station and simultaneously moving the other bearing to be detected from the upstream temporary station to the detection station after the image acquisition of the other bearing to be detected is completed.
Preferably, in the machine vision inspection system, the system further includes: and the upper computer is in communication connection with the first detection assembly and the second detection assembly and is used for carrying out image processing on the images acquired by the first detection assembly and the second detection assembly and carrying out defect identification.
According to the above description, the embodiment of the utility model provides an among the machine vision detecting system of the bearing internal and external diameter face of cylinder, will wait to detect the bearing and place on supporting structure's detection station to set up first detection module in one side of supporting structure, first detection module orientation is waited the annular top surface transmission of detecting the light of bearing, and detects the light formation of image based on waiting to detect the reflection of bearing. Use the utility model provides a machine vision detecting system on inside and outside footpath face of cylinder can detect the face of cylinder and the external diameter face of cylinder that wait to detect the bearing to can obtain more even formation of image background, when improving detection quality and efficiency, help more sensitive discernment bearing defect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required 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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a machine vision inspection system for detecting a cylindrical surface of an inner diameter and an outer diameter of a bearing provided by an embodiment of the present invention;
fig. 2-3 are schematic diagrams illustrating an imaging effect of a bearing defect according to an embodiment of the present invention;
fig. 4-5 are schematic diagrams of the bearing defect identification result provided by the embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail and fully with reference to the accompanying drawings, wherein the description is only for the purpose of illustrating the embodiments of the present invention and not for the purpose of limiting the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As described in the background, the prior detection of the appearance defect of the bearing is mainly observed by the naked eyes. Because the bearing detection area and the target content are more, the manual detection efficiency is low, the resolution ratio of the manual naked eyes is low, fine defects are easy to leak, the manual subjective judgment is carried out, and the consistency of multi-person detection is poor; the stability of the long-term detection is poor due to the influence of factors such as fatigue and the like; in addition, the labor cost is gradually increased, and great operation pressure is brought to bearing production enterprises.
At present, machine vision detection products aiming at detection of bearing components including rolling bodies and inner and outer rings are also appeared in the market. For machine vision detection of the whole bearing, detection of cylindrical surfaces of the inner ring and the outer ring of the bearing is separated in process. The outer cylindrical surface of the bearing outer ring has a large observation angle outside the bearing, the detection is usually simpler, and more mature schemes are provided. There is a certain complexity in the detection of the inner cylindrical surface of the bearing inner ring, and there are two schemes at present: one is a detection structure which adopts a bearing horizontally placed, a light source to irradiate and a camera to shoot on the same side of a bearing plane, the camera of the structure has poor imaging illumination uniformity and low defect identification sensitivity, and the other side of a tiled bearing needs to be detected by adding a turning mechanical operation; the other type is a structure that a plane structure light source is parallelly arranged on one side of a bearing plane, and the other side of the bearing plane is detected by using an ultra-wide angle optical lens.
In order to solve the above problem, the embodiment of the utility model provides a machine vision detecting system on bearing internal and external diameter face of cylinder, machine vision detecting system includes:
the bearing detection device comprises a support structure, a detection device and a detection device, wherein the support structure is provided with a detection station, and the detection station is used for placing a bearing to be detected, so that an annular top surface and an annular bottom surface of the bearing to be detected face to two opposite sides of the support structure respectively;
a first detection assembly disposed on one side of the mounting structure; the first detection assembly is used for emitting detection light towards the annular top surface and imaging based on the detection light reflected by the bearing to be detected.
The utility model provides an among the machine vision detecting system, this machine vision detecting system has very compact implementation structure in mechanical structure, can detect the bearing inner circle inner cylinder face of waiting to detect simultaneously from both sides, need not overturn mechanical unit, when being applied to the detection of small external diameter size bearing, can detect internal diameter cylinder face and external diameter cylinder face simultaneously, this machine vision detecting system can reduce the implementation space requirement that originally needs 4 stations to 1 station; the machine vision detection system better accords with the physical law of illumination imaging on an imaging structure, can obtain a more uniform imaging background, and is beneficial to more sensitively identifying defects; the method is easier to determine and extract the detection area in an image processing algorithm and correct imaging distortion caused by space unevenness. The machine vision detection system can be adapted to a processing production line, can automatically, sensitively and accurately detect the defects on the inner and outer ring cylindrical surfaces on line, can replace the traditional manual visual inspection detection mode, can obviously reduce the labor cost in quality inspection, and improves the quality inspection quality and efficiency.
Therefore, the utility model discloses among the technical scheme, to wait to detect the bearing and place on supporting structure's detection station to set up first detection module in one side of supporting structure, first detection module orientation detects the annular top surface transmission detection light of bearing, and detects the light formation of image based on waiting to detect the bearing reflection. Use the utility model provides a machine vision detecting system on inside and outside footpath face of cylinder can detect the inside and outside footpath face of cylinder that waits to detect the bearing to can obtain more even formation of image background, when improving detection quality and efficiency, help more sensitive discernment bearing defect.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a machine vision detection system for a cylindrical surface of inner and outer diameters of a bearing provided by an embodiment of the present invention.
In fig. 1, the machine vision inspection system includes:
the bearing detection device comprises a support structure 11, wherein the support structure 11 is provided with a detection station, and the detection station is used for placing a bearing 12 to be detected, so that the annular top surface and the annular bottom surface of the bearing 12 to be detected respectively face to two opposite sides of the support structure 11; a first detection assembly arranged on one side of said support structure 11; the first detection assembly is configured to emit detection light toward the annular top surface and to image based on the detection light reflected by the bearing 12 to be detected.
Additionally, the machine vision inspection system further includes: and the second detection assembly is arranged on the other side of the support structure and is used for emitting detection light towards the annular bottom surface and imaging based on the detection light reflected by the bearing 12 to be detected.
It should be noted that the inner cylindrical surface and the outer cylindrical surface of the bearing may be irradiated simultaneously when the annular top surface is irradiated with the detection light, and the inner cylindrical surface and the outer cylindrical surface of the bearing may be irradiated simultaneously when the annular bottom surface is irradiated with the detection light.
The first detection assembly and the second detection assembly are symmetrically arranged on two sides of the support structure 11. The bearing 12 to be detected can receive the detection light emitted by the first detection assembly and the second detection assembly, and the detection light is uniformly irradiated on the top surface, the bottom surface, the inner diameter cylindrical surface and the outer diameter cylindrical surface of the bearing 12 to be detected, so that the first detection assembly and the second detection assembly can obtain a more uniform imaging background based on the detection light reflected by the bearing 12 to be detected, the inner diameter cylindrical surface and the outer diameter cylindrical surface of the bearing can be detected, and the bearing defect can be more sensitively identified.
Further, the first detection assembly includes: a first imaging module and a first light source module 15; when the bearing 12 to be detected placed in the detection station is subjected to defect detection, detection light emitted by the first light source module 15 obliquely irradiates the inner diameter cylindrical surface and the outer diameter cylindrical surface of the bearing 12 to be detected; the first imaging module images based on the collected reflected light; the second detection assembly includes: a second imaging module and a second light source module 16; when the bearing 12 to be detected placed in the detection station is subjected to defect detection, the detection light emitted by the second light source module 16 obliquely irradiates the inner diameter cylindrical surface and the outer diameter cylindrical surface of the bearing 12 to be detected; the second imaging module images based on the acquired reflected light.
The embodiment of the utility model provides an among the machine vision detecting system, first light source module 15 with the outgoing detection light colour of second light source module 16 can be the arbitrary wave band of visible light, including ruddiness, white light, blue light or ultraviolet ray etc. specific colour does not do specific limit here.
The embodiment of the utility model provides an among the machine vision detecting system, first determine module with second determine module can gather simultaneously and wait to detect the image of bearing 12, also can the timesharing gather and wait to detect the image of bearing 12.
The embodiment of the utility model provides an among the machine vision detecting system, first formation of image module with second formation of image module all includes sensitization camera lens 14 and area array camera 13, sensitization camera lens 14 is used for gathering wait to detect the detection light of detection bearing 12 reflection, area array camera 13 is used for based on the reverberation formation of image that sensitization camera lens 14 gathered.
The embodiment of the utility model provides an among the machine vision detecting system, sensitization camera lens 14 with the selection of area array camera 13 and the setting of focus with it is accurate to wait to detect the internal diameter face of cylinder of bearing 12 and have clear formation of image in area array camera 13.
The embodiment of the utility model provides an among the machine vision detecting system, first imaging module with second imaging module about 11 symmetries of supporting structure, first light source module 15 with second light source module 16 about 11 symmetries of supporting structure. This is more advantageous for acquiring the images of the inner diameter cylindrical surface and the outer diameter cylindrical surface of the bearing 12 to be detected.
The first light source module 15 and the second light source module 16 are both rectangular planar LED array light sources. The illumination intensity of the LED array light source with the rectangular plane is set to uniformly illuminate the circumferential side face and the inner surface of the hole.
Further, when the bearing 12 to be detected is located on the detection station, the axis of the bearing is parallel to the horizontal plane; the LED array light source is perpendicular to the horizontal plane, the size of the LED array light source in the vertical direction is larger than the outer diameter of the bearing 12 to be detected, and the size of the LED array light source in the horizontal direction is larger than the maximum distance difference between the inner diameter cylindrical surface and the outer diameter cylindrical surface on the imaging plane.
In the machine vision inspection system of the embodiment of the present invention, as shown in fig. 1, what is indicated by double-dashed arrows is the size of the LED array light source in the horizontal direction. The size of the LED array light source in the vertical direction is larger than the outer diameter of the bearing 12 to be detected, the size of the LED array light source in the horizontal direction is larger than the maximum distance difference between the inner diameter cylindrical surface and the outer diameter cylindrical surface on the imaging plane, the detection light emitted by the LED array light source can be uniformly irradiated onto the bearing 12 to be detected, and the first imaging module and the second imaging module can obtain a more uniform imaging background.
It should be noted that the illumination angle and the shooting angle of the area-array camera 13 are theoretically equal to each other with respect to the plane of the bearing 12 to be detected. When selecting a specific angle, firstly considering that the uniform background imaging area selected by the area-array camera 13 can shoot a sufficient range of the inner diameter cylindrical surface under the planar thickness of the bearing 12 to be detected. It is necessary to be able to completely photograph the inner diameter cylindrical surface in one rotation in combination with the rotation speed of the bearing 12 to be detected at a given frame rate of the area-array camera 13. Considering the depth of field of the area-array camera 13 again, both the inner diameter cylindrical surface and the outer diameter cylindrical surface can be imaged clearly and uniformly as much as possible. This is limited in that for large bearings, because of the depth of field limitation, the two regions cannot be detected simultaneously when the maximum difference between the inner diameter cylindrical surface and the outer diameter cylindrical surface on the imaging plane is greater than the depth of field distance, and for small bearings, the two regions can be detected simultaneously.
Further, the first imaging module and the second imaging module both include a photosensitive lens 14 and an area-array camera 13, the photosensitive lens 14 is used for collecting detection light reflected by the bearing 12 to be detected, and the area-array camera 13 is used for imaging based on reflected light collected by the photosensitive lens 14.
The embodiment of the utility model provides an among the machine vision detecting system, it has the rotation roller 18 to detect the station, it is right to detect when detecting bearing 12 and carrying out the defect detection, it is located to detect bearing 12 rotate on the roller 18, it is used for driving to rotate the roller 18 it rotates to detect bearing 12, so that first determine module with second determine module homoenergetic is gathered detect the image that bearing 12 rotated a week.
Specifically, the bearing to be detected can be placed on the two rotating rollers 18, the bearing 12 to be detected is driven to rotate, and thus, in the rotating process of the bearing 12 to be detected, the area array camera 13 can continuously shoot the whole inner diameter cylindrical surface and the whole outer diameter cylindrical surface of the bearing 12 to be detected.
In the machine vision inspection system of the embodiment of the present invention, the rotation form of the rotating roller 18 is not limited to the friction rotation by the rotating roller 18, and in other ways, friction rotation forms such as a belt can be adopted; the moving manner of the rotating roller 18 is not limited to a toggle type translation structure.
The embodiment of the utility model provides an among the machine vision detecting system 11 relative both sides are provided with safe edge baffle 20 respectively, safe edge baffle 20 highly is not more than wait to detect the extreme low position of the internal diameter face of cylinder of bearing 12.
The edge-protecting baffle 20 is used for limiting the position of the bearing 12 to be detected when being shifted by the shifting type bearing translation structure 17, so that the shifting type bearing translation structure 17 can be shifted, and the bearing 12 to be detected can be moved to a downstream temporary station from a detection station or moved to the detection station from an upstream temporary station.
Further, the support structure 11 is provided with temporary stations at the upstream and downstream of the detection station; the machine vision detection system further comprises a toggle type bearing translation structure 17, wherein the toggle type bearing translation structure 17 is used for moving one bearing 12 to be detected from the detection station to the downstream temporary station after the image acquisition of the other bearing 12 to be detected is completed, and simultaneously moving the other bearing 12 to be detected from the upstream temporary station to the detection station.
Specifically, after the image acquisition of one bearing 12 to be detected is completed, the shifting type bearing translation structure 17 can be driven to move downwards to contact with the bearing 12 to be detected, so as to move the bearing 12 to be detected, the bearing 12 to be detected on the detection station is moved to the downstream temporary station, the bearing 12 to be detected on the upstream temporary station is moved to the detection station, and after the movement of the bearing 12 to be detected is completed, the shifting type bearing translation structure 17 can be driven to move upwards, so that the bearing 12 to be detected is separated from the region for detecting the light irradiation.
In the above machine vision inspection system, the method further comprises: and the upper computer 19 is in communication connection with the first detection assembly and the second detection assembly and is used for carrying out image processing on the images acquired by the first detection assembly and the second detection assembly and carrying out defect identification.
The embodiment of the utility model provides an in, the test work piece is 6203 model bearing, and what adopt is 150mm 30 mm's LED array light source, and area array camera 13 output image gets into host computer 19 and carries out image processing. As shown in fig. 2 to 5, fig. 2 to 3 are bearing defect imaging effect diagrams provided by an embodiment of the present invention, and fig. 4 to 5 are bearing defect identification result diagrams provided by an embodiment of the present invention.
Fig. 2 and 3 respectively correspond to image original drawings of an inner diameter cylindrical surface and an outer diameter cylindrical surface acquired at two sides of a plane of a bearing 12 to be detected, fig. 4 is an image for identifying and marking a defect AA position after image processing corresponding to fig. 2, and fig. 5 is an image for identifying and marking a defect BB position after image processing corresponding to fig. 3. The method for marking the defect position can mark the boundary line of the defect with different colors to visually display the defect position, or set the color mark of each defect area through an image processing technology to visually display the defect position.
The embodiment of the utility model provides an in, first determine module and second determine module transmit for host computer 19 after to the image acquisition of the internal diameter face of cylinder and the external diameter face of cylinder of waiting to detect bearing 12, and host computer 19 carries out image processing and draws image target area to the image of gathering, carries out defect characteristic identification and judges.
Specifically, after the first detection assembly and the second detection assembly acquire images of the inner diameter cylindrical surface and the outer diameter cylindrical surface of the bearing 12 to be detected, the images are transmitted to the upper computer 19, target areas in the images of the inner diameter cylindrical surface and the outer diameter cylindrical surface are extracted through an image processing algorithm, and defects in the images are sensitively identified. In the upper computer 19, the first step is to extract an image of an area of interest, namely, an illuminated area of an inner diameter cylindrical surface and an outer diameter cylindrical surface, and the processing technology of the extracted area comprises image threshold segmentation, connected domain analysis, connected domain size judgment and geometric shape judgment. And the second step is to pre-process the extracted image, wherein the pre-process comprises filtering and noise reduction, affine transformation of the image and elimination of image distortion. And thirdly, defect detection is carried out, the brightness gradient under the background of uniform brightness is calculated, and the dark spot or bright spot characteristics of the brightness mutation type are extracted. The specific processing techniques are not described in detail herein.
According to the above description, the utility model discloses among the technical scheme, will wait to detect the bearing and place on supporting structure's detection station to set up first detection module in one side of supporting structure, the annular top surface transmission that first detection module orientation was waited to detect the bearing detects the light, and detects the light formation of image based on waiting to detect the bearing reflection. Use the utility model provides a machine vision detecting system on inside and outside footpath face of cylinder can detect the inside and outside footpath face of cylinder that waits to detect the bearing to can obtain more even formation of image background, when improving detection quality and efficiency, help more sensitive discernment bearing defect.
It should be noted that the present embodiment is exemplary, is intended to be used for explaining the present invention, and is not to be construed as limiting the present invention.
The embodiments in the present description are described in a progressive manner, or in a parallel manner, or in a combination of a progressive manner and a parallel manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments can be referred to each other.
It is further noted that, 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 necessarily 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 an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in an article or device that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The machine vision inspection system for the inner and outer diameter cylindrical surfaces of the bearing is characterized by comprising:
the bearing detection device comprises a support structure, a detection device and a detection device, wherein the support structure is provided with a detection station, and the detection station is used for placing a bearing to be detected, so that an annular top surface and an annular bottom surface of the bearing to be detected face to two opposite sides of the support structure respectively;
a first detection assembly disposed on one side of the mounting structure; the first detection assembly is used for emitting detection light towards the annular top surface and imaging based on the detection light reflected by the bearing to be detected.
2. The machine-vision inspection system of claim 1, further comprising: the second detection assembly is arranged on the other side of the support structure;
the second detection assembly is used for emitting detection light towards the annular bottom surface and imaging based on the detection light reflected by the bearing to be detected.
3. The machine-vision inspection system of claim 2, wherein the first inspection assembly and the second inspection assembly are symmetrically disposed on both sides of the support structure.
4. The machine-vision inspection system of claim 2, wherein the first inspection assembly comprises: the first imaging module and the first light source module;
when the bearing to be detected placed on the detection station is subjected to defect detection, detection light emitted by the first light source module obliquely irradiates an inner diameter cylindrical surface and an outer diameter cylindrical surface of the bearing to be detected; the first imaging module images based on the collected reflected light;
the second detection assembly includes: the second imaging module and the second light source module;
when the bearing to be detected placed on the detection station is subjected to defect detection, detection light emitted by the second light source module obliquely irradiates the inner diameter cylindrical surface and the outer diameter cylindrical surface of the bearing to be detected; the second imaging module images based on the acquired reflected light.
5. The machine vision inspection system of claim 4, wherein the first light source module and the second light source module are both rectangular planar LED array light sources.
6. The machine vision inspection system of claim 5, wherein the axis of the bearing to be inspected is parallel to a horizontal plane when the bearing is positioned on the inspection station;
the LED array light source is vertical to the horizontal plane, and the size of the LED array light source in the vertical direction is larger than the outer diameter of the bearing to be detected;
the size of the LED array light source in the horizontal direction is larger than the maximum distance difference between the inner diameter cylindrical surface and the outer diameter cylindrical surface on the imaging plane.
7. The machine-vision inspection system of claim 4, wherein the first imaging module and the second imaging module each comprise a photosensitive lens and an area-array camera;
the photosensitive lens is used for collecting detection light reflected by the bearing to be detected, and the area array camera is used for imaging based on the reflection light collected by the photosensitive lens.
8. The machine-vision inspection system of claim 2, wherein the inspection station has a rotating roller;
when the bearing to be detected is subjected to defect detection, the bearing to be detected is located on the rotating rolling rod, and the rotating rolling rod is used for driving the bearing to be detected to rotate, so that the first detection assembly and the second detection assembly can acquire images of the bearing to be detected rotating for a circle.
9. The machine vision inspection system of claim 1, wherein the support structure is provided with temporary stations both upstream and downstream of the inspection station;
the machine vision detection system further comprises a toggle type bearing translation structure, and the toggle type bearing translation structure is used for moving one bearing to be detected from the detection station to the downstream temporary station and simultaneously moving the other bearing to be detected from the upstream temporary station to the detection station after the image acquisition of the other bearing to be detected is completed.
10. The machine-vision inspection system of any one of claims 2-8, further comprising:
and the upper computer is in communication connection with the first detection assembly and the second detection assembly and is used for carrying out image processing on the images acquired by the first detection assembly and the second detection assembly and carrying out defect identification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922339676.4U CN211651523U (en) | 2019-12-23 | 2019-12-23 | Machine vision detection system for inner and outer diameter cylindrical surfaces of bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922339676.4U CN211651523U (en) | 2019-12-23 | 2019-12-23 | Machine vision detection system for inner and outer diameter cylindrical surfaces of bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211651523U true CN211651523U (en) | 2020-10-09 |
Family
ID=72698329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922339676.4U Active CN211651523U (en) | 2019-12-23 | 2019-12-23 | Machine vision detection system for inner and outer diameter cylindrical surfaces of bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211651523U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112730459A (en) * | 2021-02-05 | 2021-04-30 | 北京嘉恒中自图像技术有限公司 | Bearing inner ring end surface defect detection method based on multi-angle light source shooting image |
-
2019
- 2019-12-23 CN CN201922339676.4U patent/CN211651523U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112730459A (en) * | 2021-02-05 | 2021-04-30 | 北京嘉恒中自图像技术有限公司 | Bearing inner ring end surface defect detection method based on multi-angle light source shooting image |
| CN112730459B (en) * | 2021-02-05 | 2023-01-24 | 北京嘉恒中自图像技术有限公司 | Bearing inner ring end surface defect detection method based on multi-angle light source shooting image |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2763417C2 (en) | System and related method for detecting small defects on/in glass sheet on process line | |
| CN109490313B (en) | Automatic detection device and method for surface defects of large-caliber curved surface optical element | |
| RU2762130C2 (en) | System and related method for measuring optical characteristics of glass sheet on process line | |
| CN103149215B (en) | A kind of toughened glass insulator defect inspection method and device | |
| CN103743761B (en) | A kind of eyeglass watermark defect image detection device | |
| KR101721965B1 (en) | Device and method for inspecting appearance of transparent substrate | |
| CN109142509B (en) | Round steel magnetic powder flaw detection method and device | |
| CN107703154B (en) | Appearance inspection device and appearance inspection method | |
| CN209624422U (en) | A kind of concave-convex defect detecting device based on linear array imaging | |
| JP6769182B2 (en) | Surface inspection equipment and surface inspection method for steel materials | |
| CN110132981A (en) | Piece appearance and size integrated detection equipment and detection method in a kind of optical filter | |
| CN109827974B (en) | Resin optical filter film crack detection device and detection method | |
| CN110208269A (en) | The method and system that a kind of glass surface foreign matter and internal foreign matter are distinguished | |
| CN110567968A (en) | part defect detection method and device | |
| KR20150099956A (en) | Lens inspection apparatus | |
| CN211651523U (en) | Machine vision detection system for inner and outer diameter cylindrical surfaces of bearing | |
| CN110618140A (en) | Machine vision detection system and method for bearing ring grinding vibration lines | |
| CN110412055B (en) | Lens white fog defect detection method based on multi-light-source dark field illumination | |
| CN205786362U (en) | A kind of touch screen glass surface flaw on-line automaticization detecting system | |
| CN111103309A (en) | Method for detecting flaws of transparent material object | |
| CN109785290A (en) | Normalized steel plate defect detection method is shone based on local light | |
| US20200116648A1 (en) | Cylindrical body surface inspection device and cylindrical body surface inspection method | |
| CN103091332B (en) | Detection method and detection system of U-shaped powder pipe based on machine vision | |
| CN114688969A (en) | Optical lens size detection device and method | |
| CN111598831A (en) | Detection method and system for cylindrical roller bearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |