CN109158337B - Automatic detection equipment for lens defects - Google Patents
Automatic detection equipment for lens defects Download PDFInfo
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- CN109158337B CN109158337B CN201811271166.1A CN201811271166A CN109158337B CN 109158337 B CN109158337 B CN 109158337B CN 201811271166 A CN201811271166 A CN 201811271166A CN 109158337 B CN109158337 B CN 109158337B
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- 238000001514 detection method Methods 0.000 title claims abstract description 113
- 230000007547 defect Effects 0.000 title claims abstract description 39
- 238000012937 correction Methods 0.000 claims abstract description 80
- 238000007599 discharging Methods 0.000 claims abstract description 80
- 239000000463 material Substances 0.000 claims description 54
- 238000003708 edge detection Methods 0.000 claims description 25
- 210000000078 claw Anatomy 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 16
- 238000007689 inspection Methods 0.000 description 8
- 230000003028 elevating effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 239000004579 marble Substances 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
- B07C5/3422—Sorting according to other particular properties according to optical properties, e.g. colour using video scanning devices, e.g. TV-cameras
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention relates to an automatic detection device for lens defects, which comprises: a feeding module (1); the discharging module (2) is used for receiving the lens fed by the feeding module (1) and coarsely positioning the lens; a correction module (3) that corrects the lens position; a detection device (4) for detecting defects of the lens; the sorting and blanking module (5) sorts and blanking the detected lenses; the detection device (4) comprises a bottom plate detection module (41). The automatic detection equipment for the defects of the lenses can realize the automatic detection of the defects of the lenses, and greatly improves the detection efficiency.
Description
Technical Field
The invention relates to the technical field of lens detection, in particular to an automatic detection device for lens defects.
Background
Along with the increasing and advancing of the requirements of optical products, the requirements on defect detection of lenses are higher and higher, the test projects are more and more, the existing manual defect detection mode for lenses cannot meet the market demands, and the automatic defect detection of lenses becomes a research direction.
Disclosure of Invention
The invention aims to provide an automatic detection device for lens defects, which improves detection efficiency.
To achieve the above object, the present invention provides an automated lens defect detecting apparatus, comprising:
a feeding module;
the discharging module is used for receiving the lens fed by the feeding module and coarsely positioning the lens;
the correction module corrects the lens position;
the detection device is used for detecting defects of the lens;
the sorting and blanking module is used for sorting and blanking the detected lenses;
the detection device comprises a bottom plate detection module.
According to one aspect of the invention, the floor detection module comprises:
an adjustable base;
the adapter plate is supported on the adjustable base;
the Z-direction lifting assembly is fixed on the adapter plate and is connected with a camera unit;
and the light source unit is fixed on the adapter plate and positioned at the lower side of the camera unit.
According to an aspect of the present invention, the light source unit includes an upper light source assembly and a lower light source assembly disposed opposite to each other;
the upper light source assembly and the lower light source assembly each include:
the light source Z-direction driving assembly is fixed on the adapter plate;
the light source fixing block is fixed on the light source Z-direction driving assembly and is provided with a light source.
According to one aspect of the invention, the automated inspection apparatus further comprises a turntable module positioned between the upper light source assembly and the lower light source assembly.
According to one aspect of the invention, the adjustable base comprises a bottom plate, and an X-direction adjusting component and a Y-direction adjusting component which are connected with the bottom plate;
and the bottom plate is provided with an adjusting hole.
According to one aspect of the present invention, the detection apparatus further includes a side detection module including:
a side edge detection adjusting device which can adjust X, Y, Z direction position;
the rotating device is fixedly connected with the side edge detection and adjustment device;
position correction means located on the lower side of the rotation means;
and the side vision detection device is positioned at one side of the position correction device.
According to an aspect of the present invention, the side edge detection adjustment device includes a side edge detection X-direction adjustment portion and a side edge detection Y-direction adjustment portion supported on the side edge detection X-direction adjustment portion, and a side edge detection Z-direction adjustment portion supported on the side edge detection Y-direction adjustment portion.
According to one aspect of the invention, the rotating device is fixed on the side edge detection Z-direction adjusting part and comprises a rotating driving assembly and a rotating shaft connected with the rotating driving assembly;
the rotating shaft is provided with a side suction nozzle.
According to an aspect of the present invention, the position correction device includes:
the correction Z-direction adjusting component is positioned at the lower side of the rotating device;
and the correction clamping jaw is connected to the correction Z-direction adjusting assembly.
According to one aspect of the invention, the side vision inspection apparatus includes:
a platform support;
a side camera Y-direction adjustment assembly supported on the platform support;
the side camera assembly is fixed on the side camera Y-direction adjusting assembly;
and the side detection light source is coaxially arranged with the side camera component.
According to one aspect of the invention, the feeding module comprises a middle support, and a feeding device which are respectively connected to two opposite side surfaces of the middle support;
the middle part support is connected with the fixed material loading Z to adjusting part that is equipped with in one side of loading attachment, loading attachment is fixed on the material loading Z to adjusting part.
According to one aspect of the invention, the feeding device comprises:
the storage bin is internally provided with a plurality of lens material trays;
the material tray pushing assembly is fixed on the middle support and is flush with the height of the feeding device.
According to one aspect of the invention, the feeding device comprises a tray conveyor belt and a tray carrying platform along a direction away from the middle support;
the tray bearing platform is provided with a plurality of tray suction nozzles.
According to one aspect of the invention, the discharging module comprises a discharging Y-direction adjusting component, a discharging X-direction adjusting component fixedly supported on the discharging Y-direction adjusting component and a material taking suction nozzle device fixedly supported on the discharging X-direction adjusting component;
the material taking suction nozzle device comprises a material taking Z-direction adjusting component and a material taking suction nozzle fixed on the material taking Z-direction adjusting component.
According to one aspect of the invention, the correction module is located at the lower side of the discharging module, comprising:
the correction camera Z-direction adjusting component is fixedly provided with a correction camera;
the correction light source Z-direction adjusting assembly is positioned above the correction camera Z-direction adjusting assembly and is fixedly provided with a correction light source.
According to one aspect of the invention, the sorting and blanking module comprises a sorting part and a blanking part;
the blanking part comprises:
a second middle support;
the discharging bin is connected with the second middle support through a discharging Z-direction adjusting component;
and the discharging conveying device is oppositely arranged on one side of the second middle support with the discharging bin.
According to one aspect of the invention, the blanking conveying device comprises a tray taking and placing assembly and a lifting rail positioned at one side of the tray taking and placing assembly;
the tray picking and placing assembly comprises:
the material tray taking and placing Y-direction adjusting assembly is connected with a spring seat;
a discharging push rod is connected to the spring seat, and the other end of the discharging push rod is connected with a discharging claw assembly;
and the discharging claw component is in sliding fit with the Y-direction sliding rail.
According to one aspect of the invention, the detection device further comprises a detection module on the central area.
According to one scheme of the invention, the automatic detection device is provided with the feeding module, the discharging module, the correction module, the turntable module, the detection module and the sorting and discharging module, so that the automatic detection of the defects of the lens can be realized, and the detection efficiency of the lens is greatly improved.
According to one aspect of the invention, as the bottom plate detection module is arranged, the turntable module moves the discharging station for placing the lens to be detected between the upper light source assembly and the lower light source assembly through rotation, the adjustable base is adjusted to enable the lens to be detected to be consistent with the imaging center, and then the upper light source and the lower light source are debugged through the light source Z-direction driving assembly, so that images are illuminated, and the detection quality is improved. In the detection process, the Z-direction lifting component can continuously change the distance between the camera unit and the lens, so that Z-direction layered shooting of the camera unit is realized, pictures of the bottom surface of the lens and different positions inside the lens can be acquired, omnibearing detection of the bottom surface of the lens is realized, and the detection precision is guaranteed.
According to one aspect of the invention, the side detection module can realize 360-degree rotation of the side of the lens, so that the lens can be detected in all directions. In addition, the side detection module is provided with the position correction device, so that the situation that the lens is askew when the side suction nozzle sucks materials can be adjusted, the axis of the lens is ensured to coincide with the axis of the rotating shaft, and the stability of image acquisition and the accuracy of detection results of side detection of the lens are ensured.
Drawings
Fig. 1 is a block diagram schematically showing an automated lens defect detection apparatus according to the present invention;
fig. 2 is a structural view schematically showing a loading module according to the present invention;
fig. 3 is a structural view schematically showing a tray pushing assembly according to the present invention;
fig. 4 is a block diagram schematically showing a loading apparatus according to the present invention;
fig. 5 is a structural view (carrier tray state) schematically showing the feeding device according to the present invention;
fig. 6 is a structural view schematically showing the feeding device according to the present invention (in a state of not carrying a tray);
fig. 7 is a block diagram schematically showing a discharging module according to the present invention;
FIG. 8 is a block diagram schematically illustrating a correction module according to the present invention;
FIG. 9 is a schematic diagram illustrating the correction of a correction module according to the present invention;
FIG. 10 is a correction schematic diagram schematically illustrating a correction module according to the present invention;
FIG. 11 is a block diagram schematically illustrating a floor inspection module according to the present invention;
FIG. 12 is a partial block diagram schematically showing a floor inspection module according to the present invention;
fig. 13 is a structural view schematically showing a light source unit according to the present invention;
FIG. 14 is a block diagram schematically illustrating an adjustable base according to the present invention;
FIG. 15 is a block diagram schematically illustrating a side edge detection module according to the present invention;
FIG. 16 is a partial block diagram schematically illustrating a side edge detection module according to the present invention;
fig. 17 is a block diagram schematically showing a position correction device according to the present invention;
FIG. 18 is a block diagram schematically showing a side vision inspection apparatus according to the present invention;
fig. 19 is a perspective view schematically showing a sorting section according to the present invention;
fig. 20 is a partially enlarged view schematically showing fig. 19;
fig. 21 is a perspective view schematically showing a blanking portion according to the present invention;
FIG. 22 is a partial block diagram schematically showing a blanking portion according to the present invention;
fig. 23 is a structural view schematically showing a lifting rail according to the present invention;
fig. 24 is a block diagram schematically showing a blanking conveying apparatus according to the present invention;
fig. 25 is a structural view schematically showing a spring seat according to the present invention.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments will be briefly described below. It is apparent that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
In describing embodiments of the present invention, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in terms of orientation or positional relationship shown in the drawings for convenience of description and simplicity of description only, and do not denote or imply that the devices or elements in question must have a particular orientation, be constructed and operated in a particular orientation, so that the above terms are not to be construed as limiting the invention.
The present invention will be described in detail below with reference to the drawings and the specific embodiments, which are not described in detail herein, but the embodiments of the present invention are not limited to the following embodiments.
Fig. 1 is a schematic diagram showing the construction of an automated lens defect detecting apparatus according to the present invention. As shown in fig. 1, the lens defect automatic detection device of the invention comprises a feeding module 1, a discharging module 2, a correction module 3, a detection device 4, a sorting and discharging module 5 and a turntable module 6. In the invention, a feeding module 1, a discharging module 2, a correction module 3, a detection device 4, a sorting and discharging module 5 and a turntable module 6 are all arranged on a marble machine, and lens carriers 61 are arranged on the turntable module 6 at equal intervals along the circumferential direction of the turntable module for supporting lenses for detection. The feeding module 1 is located above the turntable module 6 and is used for feeding the lens. The discharging module 2 is located at the upper side of the turntable module 6 and is used for receiving the lens fed by the feeding module 1 and performing coarse positioning. The correction module 3 is arranged at the lower side of the discharging module 2 and is used for carrying out position correction on the lens roughly positioned by the discharging module 2. The detecting device 4 is used for detecting defects of the lens, and comprises a bottom plate detecting module 41 and a side edge detecting module 42. The sorting and blanking module 5 can automatically sort and blanking the detected lenses. The automatic detection equipment for the defects of the lens can realize the automation of the defect detection of the lens and can greatly improve the defect detection efficiency of the lens.
As shown in fig. 1, in the present invention, the detecting device 4 includes a detection module 43 on the central area in addition to the floor detection module 41 and the side detection module 42. The detection module is arranged, so that the lens can be detected in all directions, and the defect detection yield of the lens is improved.
The following describes each component of the lens defect automatic detection apparatus of the present invention in detail.
Referring to fig. 1 to 6, the feeding module 1 of the present invention includes a middle support 11, a feeding device 12, and a feeding device 13. In the present invention, the feeding device 12 and the feeding device 13 are disposed opposite to each other on both sides of the middle support 11. Specifically, the feeding device 13 is fixedly arranged on one side of the middle support 11, the other side of the middle support 11 is fixedly provided with a feeding Z-direction adjusting component 111, the feeding device 12 is fixedly arranged on the feeding Z-direction adjusting component 111, the feeding Z-direction adjusting component 111 can drive the feeding device 12 to move along the Z direction, and the feeding Z-direction adjusting component 111 can be a cylinder driving device and the like.
In this embodiment, the loading device 12 includes a storage bin 121 and a tray pushing assembly 122, where a plurality of lens trays may be disposed in the storage bin 121, for carrying lenses to be detected. The tray pushing assembly 122 is fixed to the middle support 11 and is flush with the height of the feeding device 13. In the present embodiment, the tray pushing assembly 122 includes a driving device 122a and a pushing arm 122b connected to the driving device 122a, where the driving device 122a may drive the pushing arm 122b to rotate by 90 ° in a horizontal plane. When the feeding device disclosed by the invention works, firstly, the feeding Z-direction adjusting component 111 drives the storage bin 121 to move upwards along the Z-direction, so that the lens material tray to be fed is pushed onto the feeding device 13 by the material tray pushing component 122 when the heights of the lens material tray to be fed and the feeding device 13 are mutually level.
The storage bin 121 is connected with the middle support 11 through the feeding Z-direction adjusting component 111, so that the feeding Z-direction adjusting component 111 can drive the lens material tray to move along the Z direction, and automatic feeding of the lens material tray can be realized. The design of the tray pushing assembly 122 can effectively reduce the size of the feeding module 1, ensure the compactness of the whole machine and reduce the occupied area.
As shown in fig. 1 to 6, in the present invention, the feeding device 13 includes a tray conveyor belt 131 and a tray carrying platform 132 in a direction away from the middle support 11, that is, in a direction from left to right, the feeding device 12, the tray conveyor belt 131 and the tray carrying platform 132 are sequentially disposed. In the present embodiment, after being pushed by the tray pushing assembly 122, the lens tray arrives on the tray conveying belt 131, and is continuously conveyed forward by the tray conveying belt 131, and is sent to the tray carrying platform 132. In this embodiment, the tray carrying platform 132 is provided with a plurality of tray suction nozzles 132a, and under the action of negative pressure, the tray suction nozzles 132a can absorb the lens tray on the tray carrying platform 132, so that the stability of the tray can be effectively ensured. In addition, in the present invention, the feeding device 13 further includes a limiting block 133, so as to further stabilize the tray on the tray carrying platform 132.
As shown in fig. 1 and 7, the discharging module 2 of the present invention is fixed on a marble machine, and includes a column, a discharging Y-direction adjusting assembly 21 fixedly disposed on the column, and a discharging X-direction adjusting assembly 22 supported on the discharging Y-direction adjusting assembly 21. A material taking suction nozzle device 23 is fixedly arranged on the discharging X-direction adjusting component. In operation, the position of the material taking suction nozzle device 23 is adjusted by the material discharging Y-direction adjusting component 21 and the material discharging X-direction adjusting component 22, so that the material taking suction nozzle device 23 is positioned above the lens material tray, and then the material taking suction nozzle device 23 is used for taking materials.
In this embodiment, the material taking suction nozzle device 23 includes a material taking Z-direction adjusting component 23a and a material taking suction nozzle 23b, where the material taking Z-direction adjusting component 23a is fixedly disposed on the material discharging X-direction adjusting component 22, and the material discharging X-direction adjusting component 22 can drive the material taking Z-direction adjusting component 23a to move along the X-direction. In this embodiment, two material taking Z-direction adjusting components 23a are disposed on the material discharging X-direction adjusting component 22, and a material taking suction nozzle 23b is fixedly disposed on each material taking Z-direction adjusting component 23a for adsorbing a lens to be precisely measured. Thus, the taking and the placing of the two lenses can be completed at one time, and the working efficiency is greatly improved.
As shown in fig. 1 and 8, the correction module 3 of the present invention is located at the lower side of the discharging module 2, the correction module 3 includes a fixing base and a correction camera Z-direction adjusting component 31 disposed on the fixing base, a correction camera 311 is fixedly disposed on the correction camera Z-direction adjusting component 31, and the correction camera 311 can move along the Z-direction under the driving of the correction camera Z-direction adjusting component 31. In the present embodiment, the correction cameras 311 are provided in two.
As shown, the correction module 3 further includes a correction light source 321. Specifically, a correction light source Z-direction adjustment unit 32 is disposed above the correction camera Z-direction adjustment unit 31, and in this embodiment, the correction camera Z-direction adjustment unit 31 and the correction light source Z-direction adjustment unit 32 are both fixed to a single fixing plate 33, the correction light source Z-direction adjustment unit 32 is disposed above the correction camera Z-direction adjustment unit 31, and the correction light source 321 is disposed on the correction light source Z-direction adjustment unit 32. In the present embodiment, two correction light sources 321 are provided as well, the correction light sources 321 are located above the correction camera 311, and the correction light sources 321 and the center axes of the correction camera 311 coincide with each other.
As shown in fig. 1-8, after the pick-up of the lens is completed, the pick-up nozzle 33b of the discharging module 2 moves to the area above the correction light source 321 along the Y axis, the correction camera 311 obtains images of two lenses, after image processing, the two lens centers are obtained and aligned with the center X, Y, Z of the discharging station (two discharging stations are all arranged on the mirror carrier 61 on the turntable module 6) of the turntable module 6 to compensate the coordinate values, and then the discharging module 2 completes corresponding position compensation according to the compensation values, and the lenses are placed on the discharging stations of the turntable module 6.
The correction principle of the correction module 3 is as follows:
referring to fig. 9 and 10, first, zero calibration of each station in the detection device is completed by taking the center of the turntable module 6 as a scale according to the established unified coordinate system. After calibration is completed, the center zero position of the turntable module 6, the center of the discharging station on the turntable module 6 coincides with the X coordinates of the correction light source 321 and the center of the correction camera 311, the material taking suction nozzle 23b takes two lenses and moves into the vision area of the correction light source 321, the correction camera 311 obtains the lens images, the coordinate system is matched with the reference coordinate system to obtain the coordinate value of the material taking center of the material taking suction nozzle 23b, the alignment compensation coordinate X, Y, Z of the material taking center of the two material taking suction nozzles 23b relative to the center of the discharging station of the turntable module 1 can be obtained, and the position of the material taking suction nozzle 23b is correspondingly adjusted by the discharging module 2 according to the compensation value, so that the sucked lenses can be accurately placed on the discharging station of the turntable module 1, and subsequent detection of the lenses can be conveniently carried out.
Referring to fig. 1 and 11-14, the bottom plate detection module 41 of the present invention includes an adjustable base 411, an adapter plate 412, a Z-direction lifting assembly 413, and a light source unit 414. In the present embodiment, the adjustable base 411 is fixed on the marble machine, the adapter plate 412 is fixedly supported on the adjustable base 411, and the adjustable base 411 can adjust the position in the X direction and the Y direction, that is, the position of the adapter plate 412 in the X direction and the Y direction can be adjusted by adjusting the adjustable base 411. The Z-direction lifting assembly 413 is fixed on the adapter plate 412, and a camera unit 413a is arranged on the Z-direction lifting assembly 413 and used for performing visual detection on the lens. The light source unit 414 is disposed below the camera unit 413 a.
As shown, the adjustable base 411 of the present invention includes a base plate 411a and X-direction adjustment assemblies 411b and Y-direction adjustment assemblies 411c connected to the base plate 411 a. Specifically, in the present embodiment, the bottom plate 411a includes a first bottom plate 411a1, a second bottom plate 411a2, and a third bottom plate 411a3 from bottom to top, the second bottom plate 411a2 is supported on the first bottom plate 411a1, the third bottom plate 411a3 is supported on the second bottom plate 411a2, adjustment holes 411d are correspondingly provided on the first bottom plate 411a1 and the second bottom plate 411a2, and corresponding adjustment holes 411d are also provided on the second bottom plate 411a2 and the third bottom plate 411a3, and in the present embodiment, the adjustment holes 411d are waist-shaped holes.
In addition, in the present embodiment, the X-direction adjusting assembly 411b includes an adjusting base 411b1 and an adjusting screw 411b2, where the adjusting base is fixedly connected to the first bottom plate and the second bottom plate, so that the adjustable base 411 can move along the X-direction when the X-direction adjusting assembly 411b is adjusted. The Y-direction adjusting assembly 411c includes a Y-direction adjusting base 411c1 and a Y-direction adjusting screw 411c2, where the Y-direction adjusting base is fixedly connected to the third base plate, so that the adjustable base 411 can move along the Y-direction when the Y-direction adjusting assembly 411c is adjusted.
Thus, the adjustability of the adjustable base 411 along the X, Y direction can be realized, the imaging center, the light path center and the lens center of the camera unit 413a can be kept consistent, and the adjustment process is simple and convenient.
In the present embodiment, the camera unit 413a includes a fixing link plate 4131 and a bottom edge detection camera 4132, the fixing link plate 4131 is fixedly connected to the Z-direction lifting assembly 413, and the bottom plate detection camera 4132 is fixed to the fixing link plate 4131 by a lock block 4133. Thus, the rigidity and vibration resistance of the structure can be improved, and the stability of image acquisition is ensured.
In this embodiment, the light source unit 414 includes an upper light source assembly 414a and a lower light source assembly 414b that are disposed opposite to each other, and the upper light source assembly 414a and the lower light source assembly 414b have the same structure and each include a light source Z-direction driving assembly 4141 and a light source fixing block 4142, wherein the light source Z-direction driving assembly 4141 is fixed on the adapter plate 412, the light source fixing block 4142 is fixed on the light source Z-direction driving assembly 4141, and the light source 4143 is disposed on the light source fixing block 4142. In the present embodiment, in order to secure the structural strength of the floor inspection module 41, the adapter plate 412 is further provided with reinforcing ribs.
The working process of the bottom plate detection module 41 is as follows, firstly the turntable module 6 moves the discharging station for placing the lens to be detected between the upper light source component 414a and the lower light source component 414b through rotation, the adjustable base 411 is adjusted to enable the lens to be detected to be consistent with the imaging center, then the upper light source and the lower light source 4143 are debugged through the light source Z-direction driving component 4141, the image is illuminated, and the detection quality is improved. In the detection process, the distance between the camera unit 413a and the lens can be continuously changed by the Z-direction lifting component 413, so that Z-direction layer shooting of the camera unit 413a is realized, pictures of the bottom surface of the lens and different positions inside the lens can be acquired, omnibearing detection of the bottom surface of the lens is realized, and the detection precision is guaranteed.
In the present invention, the structure of the on-center-area detecting module 43 is the same as that of the floor detecting module 41, except that the on-center-area detecting module 43 is for detecting the center area of the lens, and the mounting position of the light source used is different from that of the light source in the floor detecting module 41.
As shown in fig. 1 and 15-18, the side detection module 42 of the present invention includes a side detection adjustment device 421, a rotation device 422, a position correction device 423, and a side vision detection device 423. The side detection adjustment device 421 can realize the adjustment of the X, Y, Z direction position, specifically, the side detection adjustment device 421 includes a side detection X-direction adjustment portion 421a and a side detection Y-direction adjustment portion 421b supported on the side detection X-direction adjustment portion 421a, and a side detection Z-direction adjustment portion 421c supported on the side detection Y-direction adjustment portion 421 b.
In the present embodiment, the rotating device 422 is fixed to the side detection Z-direction adjustment portion 421c so as to be movable in the Z-direction. The rotating device 422 comprises a rotating driving component 422a and a rotating shaft 422b connected with the rotating driving component 422a, and a side suction nozzle 422c is arranged on the rotating shaft 422.
In the present embodiment, the position correction device 423 includes a correction Z-direction adjustment assembly 423a and a correction clamp 423b connected to the correction Z-direction adjustment assembly 423 a.
The side vision inspection apparatus 424 of the present invention includes a stage support 424a, a side camera Y-direction adjustment assembly 424b supported on the stage support 424a, a side camera assembly 424c fixed on the side camera Y-direction adjustment assembly 424b, and a side inspection light source 424d coaxially disposed with the side camera assembly 424 c.
The side detection module 42 of the present invention operates as follows: the adjustment of the rotating device 422 is completed through the side detection and adjustment device 421, so that the center line of the side suction nozzle 422c on the rotating shaft 422b and the center line of the lens to be detected are always kept. After the bottom edge detection and the upper and lower detection of the central area of the lens are completed, the turntable module 6 rotates, the lens moves to the station where the side edge detection module 42 is located, and the movement of the side edge suction nozzle 422c to suck the lens to be detected is completed through the lifting of the side edge detection Z-direction adjustment part 421c. Then, the correction Z-direction adjusting component 423a descends, and the correction claw 423b grabs the lens to enable the center line of the lens absorbed by the side suction nozzle 422c to coincide with the axis of the rotating shaft 422b, so that the imaging quality of each angle of the side of the lens under the most use of the rotating device 422 is ensured. Then the side detection Z-direction adjusting portion 421c is lifted up to enable the lens to be located in the effective area of the side detection light source 424d, and the side camera Y-direction adjusting assembly 424b is moved to complete focusing of the side camera assembly 424c, so that final imaging quality, that is, final detection quality is guaranteed.
The side detection module 42 can realize 360-degree rotation of the side of the lens, so that the lens can be detected in all directions. In addition, the side detection module 42 is provided with the position correction device 423, so that the situation that the lens is askew when the side suction nozzle 422c sucks materials can be adjusted, the axis of the lens is ensured to coincide with the axis of the rotating shaft 422b, and the stability of the acquisition of the side detection image of the lens and the accuracy of the detection result are ensured.
The sorting and blanking module 5 of the present invention comprises a sorting section 51 and a blanking section 52. As shown in fig. 1, 19 and 20, in the present embodiment, the sorting section 51 includes a sorting X-direction adjusting assembly 511, a sorting Y-direction adjusting assembly 512 fixed to the sorting X-direction adjusting assembly 511, and a sorting Z-direction adjusting assembly 513 fixed to the sorting Y-direction adjusting assembly 512, and in the present embodiment, two sorting Z-direction adjusting assemblies 513 are provided, and a sorting suction nozzle 513a is provided on each sorting Z-direction adjusting assembly 513. The arrangement is beneficial to improving the working efficiency.
As shown in fig. 21-25, the blanking portion 52 of the present invention includes a second middle support 521, a blanking hopper 522, and a blanking conveying apparatus 523. In this embodiment, the discharging bin 522 is connected to the second middle support 521 through the discharging Z-direction adjusting component 522a, specifically, the discharging Z-direction adjusting component 522a is fixedly connected to the second middle support 521, the discharging Z-direction adjusting component 522a is provided with an adapter plate 522a1, the adapter plate 522a1 is fixedly connected to the triangular support 522a2, and the discharging bin 522 is fixedly supported on the triangular support 522a 2. The discharging conveyor 523 is disposed opposite to the discharging bin 522 at one side of the second middle support 521.
In the present embodiment, the blanking portion 52 includes two blanking bins 522 for storing a blanking tray, and the height position of the blanking bins 522 can be adjusted by the blanking Z-direction adjusting assembly 522a, so that the height matching between the blanking tray and the blanking conveying device 523 is realized.
In the present invention, the discharging conveyor 523 includes a tray pick-and-place assembly 523a, and a lifting rail 523b located at one side of the tray pick-and-place assembly 523. Wherein the elevating rail 523b includes a rail 523c and an elevating support 523d for supporting the rail 523c, the elevating support 523d includes a support 523e and a height adjusting block 523f supported on the support 523e and an elevating shaft 523k engaged with the height adjusting block 523f, and an elevating shaft locking block 523s is further provided between the elevating shaft 523k and the height adjusting block 523 f.
The tray pick-and-place assembly 523a of the present invention includes a tray pick-and-place Y-direction adjustment assembly 5231 and Y-direction slide rails 5235. In this embodiment, the Y-direction adjusting component 5231 may be implemented by using a driving motor and a driving screw, where a spring seat 5232 is connected to the driving screw, and the spring seat 5232 may slide on the driving screw. In this embodiment, a blanking push rod 5233 is connected to the spring seat 5232, and a spring is sleeved on one end of the blanking push rod 5233 connected to the spring seat 5232. The other end of the discharging push rod 5233 is connected with a discharging jaw assembly 5234, and the discharging jaw assembly 5234 is matched with the Y-direction sliding rail 5235 and can slide on the Y-direction sliding rail 5235.
In this embodiment, the discharging jaw assembly 5234 includes a jaw fixing base 5234a fixedly connected to the discharging push rod 5233, a jaw Z-direction driving assembly 5234b disposed on the jaw fixing base 5234a, and a jaw 5234c connected to the jaw Z-direction driving assembly 5234b, the jaw 5234c includes an upper gripper 5234d and a lower gripper 5234e engaged with the upper gripper 5234d, and the fixing base 5234a is slidably connected to the Y-direction slide rail 5235.
When the blanking part 52 of the invention works, the claw Z-direction driving component drives the claw to move, so that the grabbing of the blanking tray is realized. Then, the discharging jaw assembly 5234 is moved in the Y direction by the tray Y direction adjusting assembly 5231, and the discharging tray is sent to the lifting guide rail 523b and further sent into the discharging bin 522.
In the blanking part 52, the blanking bin 522 can move along the Z direction, so that the automatic blanking can be realized. The spring is sleeved at one end of the blanking push rod 5233 connected with the spring seat 5232, so that the blanking part 5 has a buffer function, automatic alarm can be ensured under abnormal conditions such as a chuck and the like when the detected product is located in a material tray for blanking, the phenomena of material sprinkling and disc collapse can be effectively prevented, and the safety of the product and equipment can be improved. In addition, the lifting rail 523b is arranged, so that the rail height of the conveying tray can be adjusted, the adaptability of the equipment is enhanced, and the installation and adjustment are more convenient.
In addition, the tray pick-and-place assembly 523a of the present invention further includes a fool-proof sensing piece 5236, so as to further ensure the safety of the discharging process.
The working flow of the lens defect automatic detection equipment is as follows: firstly, feeding is carried out through the feeding module 1, and then the material taking suction nozzle 23b of the discharging module 2 adsorbs a lens to be detected and is positioned to the correction module 3. And then the correction module 3 detects the position of the material taking suction nozzle 23b for sucking the lens and outputs corresponding alignment compensation coordinates. The discharging module 2 performs X, Y position adjustment according to the alignment compensation coordinates, and places the lens on the corresponding discharging station on the turntable module 1. The turntable module 6 rotates, sequentially passes through bottom edge detection, central area detection and side edge detection, and finally performs sorting and blanking treatment through the sorting and blanking module 5 according to the product image processing result.
The above description is only one embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (15)
1. An automated lens defect detection apparatus, comprising:
a feeding module (1);
the discharging module (2) is used for receiving the lens fed by the feeding module (1) and coarsely positioning the lens;
a correction module (3) that corrects the lens position;
a detection device (4) for detecting defects of the lens;
the sorting and blanking module (5) sorts and blanking the detected lenses;
the detection device (4) comprises a bottom plate detection module (41);
the floor detection module (41) includes:
an adjustable base (411);
an adapter plate (412) supported on the adjustable base (411);
the Z-direction lifting assembly (413) is fixed on the adapter plate (412), and the Z-direction lifting assembly (413) is connected with a camera unit (413 a);
a light source unit (414) fixed on the adapter plate (412) and positioned at the lower side of the camera unit (413 a); the detection device (4) further comprises a side detection module (42), the side detection module (42) comprising:
a side edge detection adjustment device (421) for adjusting the lens to a X, Y, Z orientation;
the rotating device (422) is fixedly connected with the side edge detection and adjustment device (421);
a position correction device (423) located below the rotation device (422);
a side vision detection device (424) located on one side of the position correction device (423);
the discharging module (2) comprises a discharging Y-direction adjusting component (21), a discharging X-direction adjusting component (22) fixedly supported on the discharging Y-direction adjusting component (21) and a material taking suction nozzle device (23) fixedly supported on the discharging X-direction adjusting component (22);
the material taking suction nozzle device (23) comprises a material taking Z-direction adjusting component (23 a) and a material taking suction nozzle (23 b) fixed on the material taking Z-direction adjusting component (23 a).
2. The lens defect automatic detection apparatus according to claim 1, wherein the light source unit (414) includes an upper light source assembly (414 a) and a lower light source assembly (414 b) disposed opposite to each other;
the upper light source assembly (414 a) and the lower light source assembly (414 b) each include:
a light source Z-direction driving assembly (4141) fixed on the adapter plate (412);
and a light source fixing block (4142) fixed on the light source Z-direction driving assembly (4141), wherein a light source (4143) is arranged on the light source fixing block (4142).
3. The automated lens defect detection apparatus of claim 2, further comprising a turret module (6), the turret module (6) being located between the upper light source assembly (414 a) and the lower light source assembly (414 b).
4. The automated lens defect detection apparatus according to claim 1, wherein the adjustable base (411) comprises a base plate (411 a), and an X-direction adjustment assembly (411 b) and a Y-direction adjustment assembly (411 c) connected to the base plate (411 a);
the bottom plate (411 a) is provided with an adjusting hole (411 d).
5. The lens defect automatic detection apparatus according to claim 1, wherein the side edge detection adjustment device (421) includes a side edge detection X-direction adjustment portion (421 a) and a side edge detection Y-direction adjustment portion (421 b) supported on the side edge detection X-direction adjustment portion (421 a), and a side edge detection Z-direction adjustment portion (421 c) supported on the side edge detection Y-direction adjustment portion (421 b).
6. The apparatus according to claim 5, wherein the rotating device (422) is fixed to the side detection Z-direction adjustment portion (421 c) and includes a rotation driving assembly (422 a) and a rotation shaft (422 b) connected to the rotation driving assembly (422 a);
the rotating shaft (422 b) is provided with a side suction nozzle (422 c).
7. The lens defect automatic detection apparatus according to claim 1 or 6, wherein the position correction device (423) includes:
a correction Z-direction adjustment assembly (423 a) positioned below the rotating device (422);
and the correction clamping jaw (423 b) is connected to the correction Z-direction adjusting assembly (423 a).
8. The lens defect automatic detection apparatus according to claim 1, wherein the side vision detection device (424) includes:
a platform support (424 a);
a side camera Y-direction adjustment assembly (424 b) supported on the platform support (424 a);
a side camera assembly (424 c) secured to the side camera Y-direction adjustment assembly (424 b);
a side detection light source (424 d) is coaxially arranged with the side camera assembly (424 c).
9. The automatic lens defect detection device according to claim 1, wherein the feeding module (1) comprises a middle support (11), and a feeding device (12) and a feeding device (13) which are respectively connected to two opposite sides of the middle support (11);
one side of the middle support (11) connected with a feeding device is fixedly provided with a feeding Z-direction adjusting assembly (111), and the feeding device (12) is fixed on the feeding Z-direction adjusting assembly (111).
10. The automated lens defect detection device according to claim 9, wherein the loading means (12) comprises:
a storage bin (121) is internally provided with a plurality of lens material trays;
the material tray pushing assembly (122) is fixed on the middle support (11) and is flush with the feeding device (13).
11. The automated lens defect detection device according to claim 9 or 10, characterized in that the feeding device (13) comprises a tray conveyor (131) and a tray carrying platform (132) in a direction away from the central support (11);
the tray bearing platform (132) is provided with a plurality of tray suction nozzles (132 a).
12. The lens defect automatic detection device according to claim 1, characterized in that the correction module (3) is located at the lower side of the blanking module (2), comprising:
a correction camera Z-direction adjustment component (31) fixedly provided with a correction camera (311);
and the correction light source Z-direction adjusting assembly (32) is positioned above the correction camera Z-direction adjusting assembly (31), and is fixedly provided with a correction light source (321).
13. The automated lens defect detection device according to claim 1, wherein the sorting and blanking module (5) comprises a sorting portion (51) and a blanking portion (52);
the blanking portion (52) includes:
a second mid-section support (521);
the blanking bin (522) is connected with the second middle support (521) through a blanking Z-direction adjusting component (522 a);
and a discharging conveying device (523) which is arranged on one side of the second middle support (521) opposite to the discharging bin (522).
14. The automated lens defect detection apparatus according to claim 13, wherein the blanking conveying device (523) includes a tray pick-and-place assembly (523 a) and a lifting rail (523 b) located at one side of the tray pick-and-place assembly (523 a);
the tray pick-and-place assembly (523 a) includes:
the material tray taking and placing Y-direction adjusting assembly (5231) is connected with a spring seat (5232);
a discharging push rod (5233) is connected to the spring seat (5232), and the other end of the discharging push rod (5233) is connected with a discharging claw assembly (5234);
and the discharging claw assembly (5234) is in sliding fit with the Y-direction sliding rail (5235).
15. An automated lens defect detection device according to claim 1, characterized in that the detection means (4) further comprise an on-center detection module (43).
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| CN201811271166.1A CN109158337B (en) | 2018-10-29 | 2018-10-29 | Automatic detection equipment for lens defects |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109682578A (en) * | 2019-01-24 | 2019-04-26 | 宁波舜宇仪器有限公司 | Eyeglass centring means and self-centering equipment |
| CN110328149A (en) * | 2019-07-31 | 2019-10-15 | 汪成林 | A kind of mobile-phone lens open defect automatic checkout equipment |
| CN111014055B (en) * | 2020-03-09 | 2020-05-26 | 征图新视(江苏)科技股份有限公司 | Polaroid hole detection equipment |
| CN111307421B (en) * | 2020-03-20 | 2022-08-19 | 宁波舜宇仪器有限公司 | Lens defect detection system |
| CN111687061A (en) * | 2020-04-27 | 2020-09-22 | 深圳市奈尔森科技有限公司 | Automatic detection equipment for lens imaging sensor |
| CN114324169A (en) * | 2022-01-05 | 2022-04-12 | 杭州卓盈智能装备有限公司 | Semi-automatic platform and method for detecting defects of mobile phone lens |
| CN117339893A (en) * | 2023-12-06 | 2024-01-05 | 歌尔股份有限公司 | Detection device |
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