CN213544424U

CN213544424U - Inspection equipment

Info

Publication number: CN213544424U
Application number: CN202021273793.1U
Authority: CN
Inventors: 徐崇友
Original assignee: Shenzhen Fuyuan Software Co ltd
Current assignee: Zhongke Jianwei Intelligent Equipment Suzhou Co ltd
Priority date: 2020-07-02
Filing date: 2020-07-02
Publication date: 2021-06-25
Anticipated expiration: 2030-07-02

Abstract

The utility model provides an inspection device, which comprises an inspection device, an appearance inspection device and a switching device, wherein the inspection device comprises a graphic card device and an image sensing device; the image card device comprises a monochrome image card, wherein the monochrome image card is provided with a monochrome surface; the acquisition end of the image sensing device faces the monochromatic surface, the image sensing device and the monochromatic graphic card are arranged at intervals, and a detection area is arranged between the acquisition end of the image sensing device and the monochromatic graphic card; the problem of be difficult to the small flaw on the inspection fixing base through artificial mode and go to the clear aperture problem of inspection lens spare through people's eye is solved, reach and improve the qualification rate of accuracy of inspection lens spare.

Description

Inspection equipment

Technical Field

The utility model belongs to the technical field of the inspection, more specifically say, relate to an inspection equipment.

Background

After the lens member is produced, it is necessary to check whether the holder of the lens member has a defect. If the fixed seat of the lens piece has flaws, the lens piece is unqualified. If the fixed seat of the lens piece has no flaw, the lens piece is qualified. Typically, the blemishes include dirt, dust, scratches, oil stains, and the like. In the prior art, the fixed seat of the lens part is usually inspected in a manual mode, and tiny flaws on the fixed seat are not easy to be inspected in a manual mode, so that the accuracy rate of judging whether the lens part is qualified is reduced. After the lens piece is produced, the light through hole of the lens piece is required to be checked to judge whether the light through hole is provided with defective objects, wherein the defective objects comprise dust, flaws, dirt, fingerprints and the like; if there is no bad object on the light-passing hole, the lens piece is unqualified. In the prior art, the light through hole of the lens piece is inspected through human eyes, and the inspection efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an inspection device to solve the technical problem that exists among the prior art and be difficult to the tiny flaw on the inspection fixing base and go the logical unthreaded hole of inspection lens spare through people's eye through artificial mode.

In order to achieve the above object, the utility model adopts the following technical scheme: there is provided an inspection apparatus comprising an inspection device, an appearance inspection device and a switching device,

the inspection device comprises a graphic card device and an image sensing device;

the image card device comprises a monochrome image card, wherein the monochrome image card is provided with a monochrome surface;

the acquisition end of the image sensing device faces the monochromatic surface, the image sensing device and the monochromatic graphic card are arranged at intervals, and a detection area is arranged between the acquisition end of the image sensing device and the monochromatic graphic card;

the appearance inspection device comprises a focusing photographing device and an illuminating device capable of adjusting wavelength and brightness, wherein the photographing end of the focusing photographing device and the illuminating end of the illuminating device face to an inspection area, the photographing end of the focusing photographing device avoids the illuminating device, and the focusing photographing device and the illuminating device are used for being electrically connected with a photo processing center;

the switching device is set as a first switching device or a second switching device;

when the switching device is set as the first switching device, the first switching device further comprises a conveying device and a clamping device, the clamping device is provided with a clamping end part and a fixed end part, the clamping end part of the clamping device is used for clamping a lens piece, the fixed end part of the clamping device is fixed on the output end of the conveying device, the conveying device is used for driving the clamping device to drive the lens piece to move to the inspection area and the detection area respectively, and the conveying device and the clamping device avoid the inspection area and the detection area;

when the switching device is set as a second switching device, the detection area and the inspection area form the same area to be inspected, the second switching device is provided with a plurality of output ends, the monochrome graphic card and the appearance inspection device are respectively fixed on the two output ends of the second switching device, or the image sensing device and the appearance inspection device are respectively fixed on the two output ends of the second switching device;

when the monochrome graphic card and the appearance inspection device are respectively fixed on two output ends of the second switching device, the second switching device respectively drives the monochrome graphic card and the appearance inspection device to be positioned on one side of the area to be inspected;

when the image sensing device and the appearance inspection device are respectively fixed on two output ends of the second switching device, the second switching device respectively drives the image sensing device and the appearance inspection device to be positioned on one side of the area to be inspected.

Further, the inspection device further comprises a distance increasing device, and the distance increasing device comprises a distance increasing mirror;

when the switching device is set as the first switching device, the distance-increasing mirror is arranged between the monochromatic surface and the image sensing device, one end of the distance-increasing mirror faces the acquisition end of the image sensing device, the other end of the distance-increasing mirror faces the monochromatic surface, and the detection area is positioned between the distance-increasing mirror and the acquisition end of the image sensing device;

when the switching device is set as a second switching device, one end of the distance-increasing mirror faces the monochromatic surface;

when the monochrome graphic card and the appearance inspection device are respectively fixed on the two output ends of the second switching device, the distance-increasing lens is fixed on the output end of the second switching device, which is connected with the monochrome graphic card;

when the image sensing device and the appearance inspection device are respectively fixed on two output ends of the second switching device, the distance-increasing mirror is arranged on one side of the area to be detected.

Furthermore, the distance increasing device further comprises an adjusting movable device, the distance increasing mirror is fixed at the output end of the adjusting movable device, when the switching device is set as the first switching device, the adjusting movable device avoids the detection area, and the adjusting movable device is used for driving the distance increasing mirror to be far away from or close to the acquisition end of the image sensing device;

when the switching device is set as a second switching device, the adjusting movable device avoids the area to be detected and is used for driving the distance-increasing mirror to be far away from or close to the monochromatic surface;

when the monochrome graphic card and the appearance inspection device are respectively fixed on the two output ends of the second switching device, the adjusting movable device is fixed on the output end of the second switching device connected with the monochrome graphic card.

Furthermore, the image card device also comprises an adjusting movement device, and the monochrome image card is fixed on the output end of the adjusting movement device;

when the switching device is set as the first switching device, the adjusting motion device is used for driving the monochrome graphic card to be far away from or close to the acquisition end of the image sensing device, and the adjusting motion device avoids the detection area;

when the switching device is set as a second switching device, the adjusting motion device avoids the area to be detected;

when the monochrome graphic card and the appearance inspection device are respectively fixed on the two output ends of the second switching device, the monochrome graphic card is fixed on the output end of the second switching device through the adjusting movement device;

when the image sensing device and the appearance inspection device are respectively fixed on the two output ends of the second switching device, the adjusting motion device drives the monochrome graphic card to be far away from or close to the area to be inspected,

the adjusting motion device is arranged on one side of the area to be detected.

Further, the second switching device is set as an X-axis module or a Y-axis module.

Furthermore, the conveying device is provided with a plurality of output ends, the clamping devices are arranged in a plurality, each clamping device corresponds to one output end of the conveying device, and the clamping devices are fixed on the output ends of the corresponding conveying devices.

Furthermore, the clamping end of the clamping device is provided with a fixing plate with a through hole, or two elastic sheets which are oppositely arranged, or two output shafts of the finger cylinder.

Further, the image card device further comprises a backlight device with adjustable brightness, the monochrome image card is set to be a light-transmitting image card, the monochrome surface of the monochrome image card is set to be a monochrome light-transmitting plane, the backlight device is arranged on one side of the monochrome image card, which is opposite to the monochrome surface, and the light-emitting side of the backlight device faces the monochrome image card.

Further, the monochrome card is fixed on the backlight device.

Further, the monochrome surface is set to a black plane or a white plane.

The utility model provides a pair of check-out set's beneficial effect lies in: compared with the prior art, the lens part is convenient to respectively carry out light transmission inspection and surface flaw inspection through the switching device, and the convenience of inspecting the lens part is improved.

Drawings

Fig. 1 is a schematic structural diagram of an inspection apparatus according to an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

fig. 3 is a first schematic structural view of a clamping end of a clamping device of an inspection device according to an embodiment of the present invention;

fig. 4 is a second schematic structural view of a clamping end portion of a clamping device of an inspection device according to an embodiment of the present invention;

fig. 5 is a third schematic structural view of a clamping end portion of a clamping device of an inspection device according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of an inspection apparatus according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram three of an inspection apparatus according to an embodiment of the present invention;

fig. 8 is a first schematic flow chart of an appearance inspection apparatus according to an embodiment of the present invention;

fig. 9 is a schematic flow chart of an appearance inspection apparatus according to an embodiment of the present invention;

fig. 10 is a block diagram of an appearance inspection system according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a computer device according to an embodiment of the present invention;

fig. 12 is a first schematic structural diagram of an inspection apparatus according to an embodiment of the present invention;

fig. 13 is a schematic structural diagram of an inspection apparatus according to an embodiment of the present invention;

fig. 14 is a schematic structural diagram of a lens component according to an embodiment of the present invention;

fig. 15 is a cross-sectional view at B-B in fig. 14.

Wherein, in the figures, the respective reference numerals:

1. a graphic card device; 11. a monochrome graphic card; 12. an adjustment movement device; 13. a backlight device; 14. an illuminating member; 2. an image sensing device; 3. a distance increasing device; 31. a distance-increasing mirror; 32. adjusting the movable device; 4. detecting a region; 5. a conveying device; 6. a clamping device; 61. clamping the end; 611. a fixing plate; 612. a through hole; 613. an elastic sheet; 614. a finger cylinder; 62. a fixed end portion; 7. a focus adjustable photographing device; 8. an illumination device; 9. an examination region; 101. selecting a module; 102. a data selection module; 103. pre-storing a selection module; 104. an illumination photographing module; 105. an image comparison module; 106. a reference selection module; 107. a detection point positioning module; 108. a detection point selection module; 109. a real-time image acquisition module; 1010. a clearest image recognition module; 10a, a second switching device; 10b, a region to be detected; 11a, a lens; 11b, a light through hole; 11c, a fixed seat; 11d, a detected surface; 11e, a first check point; 11f, a second checkpoint; 11g, third checkpoint.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 and fig. 2, an inspection apparatus according to the present invention will now be described. An inspection apparatus includes a card apparatus 1 and an image sensing apparatus 2;

the image card device 1 comprises a monochrome image card 11, wherein the monochrome image card 11 has a monochrome surface;

the acquisition end of the image sensing device 2 faces the monochromatic surface, the image sensing device 2 and the monochromatic graphic card 11 are arranged at intervals, a detection area 4 is arranged between the acquisition end of the image sensing device 2 and the monochromatic graphic card 11, and the detection area 4 is used for placing a lens piece.

A user places a lens piece in the detection area 4, controls the image sensing device 2, enables the acquisition end of the image sensing device 2 to acquire an inspection image of a single color surface through the current light through hole of the lens piece, and if no impurity image exists on the inspection image, the inspection image proves that no defect exists in the current light through hole of the lens piece; if the inspection image includes an image of foreign matter, it is verified that there is something wrong with the light-passing hole of the lens member at present. The inspection device has simple structure and low cost. Whether the corresponding lens piece is provided with the defective object or not is judged through the inspection image, the user does not need to directly observe the light through hole of the lens piece by eyes, and the efficiency of inspecting the light through hole of the lens piece is improved.

Specifically, the image card device 1 and the image sensing device 2 are disposed on a preset plane (not shown) which is set as a table top or an inner table top of a dust box.

In particular, the lens element is provided as a lens or a lens.

Specifically, the image sensing device 2 is set as an image sensing chip or an industrial camera. The image sensor device 2 is preferably electrically connected to a computing center (not shown) which comprises a memory, a processor and a computer program stored in the memory and executable on the processor. The calculation center stores a standard image of a single color surface, receives the inspection image and compares the inspection image with the standard image, if the inspection image is different from the standard image, the inspection image is proved to have a defective object in a light through hole of the lens piece corresponding to the inspection image, and the calculation center sends out reminding information; if the inspection image is the same as the standard image, the inspection image proves that no defect exists in the light through hole of the lens piece corresponding to the inspection image, and the calculation center does not send out reminding information.

Specifically, the foreign matter image is set as a spot image on the inspection image or/and a bar image on the inspection image.

Further, please refer to fig. 1 and fig. 2 together, as the utility model provides a specific implementation of an inspection apparatus, the inspection apparatus further includes distance-increasing device 3, distance-increasing device 3 includes distance-increasing mirror 31, distance-increasing mirror 31 sets up between monochromatic face and image sensing device 2, one end of distance-increasing mirror 31 is towards the collection end of image sensing device 2, the other end is towards the monochromatic face, detection area 4 is located between the collection end of distance-increasing mirror 31 and image sensing device 2.

After the lens element is placed in the detection area 4, the distance increasing lens 31 increases the focal length of the lens element, so that the acquisition end of the image sensing device 2 acquires an inspection image of a monochromatic surface through the current light through hole of the lens element and the distance increasing lens 31. The acquisition end of the image sensing device 2, the light through hole of the lens piece and the range extender 31 are matched to simulate to carry out far-focus shooting on a single-color surface, the distance between the single-color image card 11 and the acquisition end of the image sensing device 2 does not need to be set far, and the size of the inspection device is reduced.

Specifically, the pitch device 3 is disposed on a preset plane.

Further, please refer to fig. 1 and fig. 2, as the utility model provides a specific implementation of an inspection device, distance-increasing device 3 still includes adjusts mobile device 32, distance-increasing mirror 31 is fixed at the output of adjusting mobile device 32, adjust mobile device 32 and avoid detection area 4, adjust mobile device 32 and be used for driving distance-increasing mirror 31 and keep away from or be close to image sensing device 2's collection end, adjust mobile device 32 and do not influence the lens piece and place in detection area 4, conveniently adjust the distance between distance-increasing mirror 31 and the image sensing device 2, improve the convenience of using inspection device.

Specifically, the adjustment movement device 32 is fixed on a preset plane.

Optimally, the adjustment mechanism 32 is configured as an XYZ-axis adjustment mechanism or a Z-axis module.

Further, refer to fig. 1 and fig. 2, as the utility model provides a specific implementation of an inspection device, picture card device 1 still includes adjusts telecontrol equipment 12, monochromatic picture card 11 is fixed on the output of adjusting telecontrol equipment 12, it is used for driving monochromatic picture card 11 and keeps away from or be close to the collection end of image sensing device 2 to adjust telecontrol equipment 12, it avoids detection area 4 to adjust telecontrol equipment 12, it does not influence the lens piece and places in detection area 4 to adjust telecontrol equipment 12, conveniently adjust the distance between picture card device 1 and the image sensing device 2, improve the convenience of using inspection device.

In particular, the adjustment movement means 12 are fixed on a preset plane.

Optimally, the adjusting movement device 12 is configured as an XYZ-axis adjusting device or a Z-axis module.

Further, please refer to fig. 1 to 2, as a specific embodiment of the inspection apparatus provided by the present invention, the inspection apparatus further includes a conveying device 5 and a clamping device 6, the clamping device 6 has a clamping end 61 and a fixing end 62, the clamping end 61 of the clamping device 6 is used for clamping the lens, the fixing end 62 of the clamping device 6 is fixed on the output end of the conveying device 5, the conveying device 5 is used for driving the clamping device 6 to drive the lens to move to the detection area 4 or keep away from the detection area 4, and the conveying device 5 and the clamping device 6 avoid the detection area 4.

The conveying device 5 is convenient for controlling the clamping device 6 to move, and then the lens piece on the clamping end part 61 moves along with the movement of the clamping device 6, so that the lens piece can conveniently enter and exit the detection area 4, and the use convenience of the inspection device is improved.

By clamping the lens member by the clamping end 61, the clamping end 61 does not affect the image sensing device 2

In particular, the conveying device 5 is fixed on a preset plane.

The transport device 5 is preferably an XYZ-axis adjustment device or an X-axis module.

Further, please refer to fig. 1 and fig. 6, as a specific embodiment of the present invention, the conveying device 5 has a plurality of output ends, the clamping device 6 is provided with a plurality of clamping devices 6, each clamping device 6 corresponds to the output end of the conveying device 5 one by one, and the clamping device 6 is fixed on the output end of the corresponding conveying device 5.

When the lens member on one holding device 6 is in the detection area 4, the lens member on the other holding device 6 can be processed or the lens can be placed on the holding device 6 without the lens member, thereby improving the convenience of the inspection device.

Specifically, a plurality of output ends of the conveyor 5 are integrally provided, and in this case, the conveyor 5 is configured as a conveyor belt device.

Further, referring to fig. 2 to 5, as an embodiment of the present invention, the holding end 61 of the holding device 6 is a fixing plate 611 having a through hole 612, or two elastic pieces 613 disposed oppositely, or two output shafts of the finger cylinder 614.

When the lens is placed in the through hole 612, the lens is not easy to move on the fixing plate 611, and the lens is simple in structure and very practical; the distance between the two elastic pieces 613 is conveniently adjusted to hold lens pieces of different specifications. The finger cylinder 614 is convenient to use and facilitates clamping and releasing the lens piece.

Further, please refer to fig. 1 and fig. 2, as a specific embodiment of the present invention, the card device 1 further includes a backlight device 13 with adjustable brightness, the monochrome card 11 is set as a transparent card, the monochrome surface of the monochrome card 11 is set as a monochrome transparent plane, the backlight device 13 is disposed on a side of the monochrome card 11 facing away from the monochrome surface, and the light emitting side of the backlight device 13 faces the monochrome card 11.

The light emitted from the backlight device 13 passes through the light-transmitting graphic card, so that the image sensing device 2 can acquire a clear inspection image. The brightness of the backlight device 13 is adjusted according to the lens pieces with different specifications, so that the image sensing device 2 can acquire clear inspection images through the lens pieces with different specifications. The brightness of the backlight device 13 is kept unchanged, so that a user can conveniently check the lens piece with the same specification, and the difficulty of using the checking device is reduced.

Further, as the utility model provides a specific implementation mode of an inspection device, monochromatic picture card 11 is fixed on backlight unit 13, reduces the volume of picture card device 1, is convenient for move monochromatic picture card 11 and backlight unit 13 simultaneously.

Specifically, the backlight 13 may be fixed on an output shaft of the adjustment movement device 12.

Further, please refer to fig. 6, as a specific implementation manner of the inspection apparatus provided by the present invention, the card apparatus 1 further includes a lighting device 14 with adjustable brightness, the monochrome card 11 is set as an opaque card, the monochrome surface of the monochrome card 11 is set as a monochrome opaque plane, the lighting device 14 is used for illuminating the monochrome opaque plane, and the lighting device 14 is located on one side of the inspection area 4.

The light emitted by the illuminating element 14 is irradiated on the opaque picture card, so that the image sensing device 2 can acquire a clear inspection image conveniently. The brightness of the illuminating part 14 is adjusted according to the lens parts with different specifications, so that the image sensing device 2 can obtain clear inspection images through the lens parts with different specifications. The brightness of the illuminating piece 14 is kept unchanged, so that a user can conveniently inspect the lens piece with the same specification, and the difficulty of using the inspection device is reduced.

In particular, the illumination member 14 and the opaque chart are fixed to the output shaft of the adjustment movement device 12.

Further, as a specific implementation of the present invention provides an inspection apparatus, the monochrome surface is set to be a black plane or a white plane, and the background of the inspection image is black or white, so as to be convenient for rapidly identifying whether the inspection image is different from the standard image.

Referring to fig. 1, 6 and 7 together, an appearance inspection apparatus according to the present invention will now be described. The appearance inspection device comprises a focusing photographing device 7 and an illuminating device 8 capable of adjusting wavelength and brightness, wherein a photographing end of the focusing photographing device 7 and an illuminating end of the illuminating device 8 face an inspection area 9, a photographing end of the focusing photographing device 7 avoids the illuminating device 8, and the focusing photographing device 7 and the illuminating device 8 are electrically connected with a photo processing center.

Placing an object to be inspected in an inspection area 9, adjusting the brightness and wavelength of an illuminating device 8 according to prestored illumination data, illuminating the detected surface of the object to be inspected by the adjusted illuminating device 8, then photographing the illuminated detected surface by a focusable photographing device 7 to obtain photographing data, comparing the photographing data with image comparison data of the prestored illumination data, and if the photographing data is the same as the image comparison data, determining that the object to be inspected is qualified; if the photographing data is different from the image contrast data, the object to be inspected is unqualified. When the detected surface of the object to be inspected has tiny flaws, the difference between the photographing data and the image contrast data can be caused. The visual inspection device is simple in structure, whether the object to be inspected is qualified or not can be rapidly distinguished through comparison of the photographing data and the image comparison data, and the accuracy rate of whether the object to be inspected is qualified or not is improved. The photo processing center is convenient for rapidly comparing the photographing data with the image comparison data, the object to be checked does not need to be checked by eyes manually, and the speed and the accuracy of checking the object to be checked are improved. The check points with different heights on the detected surface of the object to be checked are photographed through the focusing photographing device 7, so that clear images of each check point are guaranteed to be obtained, and whether flaws exist at each check point is determined.

Specifically, the focus-adjustable photographing device 7 is set as a focus-adjustable camera or a fixed-focus camera mounted on an output shaft of the linear driving assembly. And the linear driving assembly drives the fixed-focus camera to focus with the object to be inspected. The focusing camera adjusts the focal length between the focusing camera and an object to be inspected through a focusing lens of the focusing camera.

Optimally, the linear driving assembly is set to be a Z-axis module or an air cylinder, the Z-axis module plays a role in accurately adjusting the fixed-focus camera, and the air cylinder is low in cost.

Specifically, the focus-adjustable photographing device 7 and the illumination device 8 are disposed on a preset plane.

Specifically, the image contrast data is set as a contrast picture, and the photographing data is set as a photographing picture.

Specifically, the object to be inspected is set as a lens piece or a mobile phone case or a mobile phone screen.

Further, please refer to fig. 1 and fig. 2, as a specific embodiment of the appearance inspection apparatus provided by the present invention, the appearance inspection apparatus further includes a conveying apparatus 5 and a clamping apparatus 6, the clamping apparatus 6 has a clamping end 61 and a fixing end 62, the clamping end 61 of the clamping apparatus 6 is used for clamping the object to be inspected, the fixing end 62 of the clamping apparatus 6 is fixed on the output end of the conveying apparatus 5, the conveying apparatus 5 is used for driving the clamping apparatus 6 to drive the object to be inspected to move into the inspection area 9 or keep away from the inspection area 9, the conveying apparatus 5 and the clamping apparatus 6 avoid the inspection area 9, the convenience of moving the object to be inspected is improved, the object to be inspected is conveniently clamped on the clamping apparatus 6, and the object to be inspected is detached from the clamping apparatus 6.

Specifically, the conveying device 5 of the appearance inspection device is common to the conveying device 5 of the inspection device described above, that is, the conveying device 5 conveys the lens pieces into the detection area 4 and the inspection area 9, respectively.

Further, referring to fig. 3 to 5, as an embodiment of the appearance inspection apparatus of the present invention, the holding end 61 of the holding device 6 is a fixing plate 611 having a through hole 612, or two elastic pieces 613 disposed oppositely, or two output shafts of the finger cylinder 614.

The fixing plate 611 is convenient for placing a circular object to be inspected in the through hole 612, and the distance between the two elastic pieces 613 is adjustable, so that objects to be inspected with different sizes can be conveniently clamped. The finger cylinder 614 is convenient to use, and the convenience of clamping and releasing the object to be checked is improved.

Further, please refer to fig. 1, fig. 6 and fig. 7 together, as a specific embodiment of the appearance inspection apparatus provided by the present invention, the lighting device 8 is set as an annular light source or an annular square light source or a planar light source, when the lighting device 8 is set as an annular light source, the shooting end of the focus-adjustable shooting device 7 faces the inner ring of the annular light source; when the lighting device 8 is set as an annular square light source, the shooting end of the focusable shooting device 7 faces the inner circle of the annular square light source.

The annular light source and the annular square light source can perform low-angle irradiation, and the focusing photographing device 7 can photograph tiny flaws conveniently. The shooting end of the focusing shooting device 7 faces towards the inner ring of the annular light source or the inner ring of the annular square light source, so that light reflected by an object to be checked can enter the shooting device conveniently, and clear pictures can be shot by the focusing shooting device 7. The plane light source is convenient to install. The cost is low, and the cost of the appearance inspection device is favorably reduced.

Further, as the utility model provides a pair of a concrete implementation of visual inspection device, can focus the device 7 of shooing and establish to vision camera or industry camera, the resolution ratio of vision camera is high, and the photo of shooing is difficult for the distortion. The industrial camera is convenient for installing different lenses.

Further, please refer to fig. 1, fig. 6 and fig. 7 together, as a specific embodiment of the present invention, the appearance inspection apparatus further includes a linear driving mechanism (not shown), the lighting device 8 is fixed on the output shaft of the linear driving mechanism, the linear driving mechanism drives the lighting device 8 to be far away from or close to the inspection area 9, the linear driving mechanism avoids the inspection area 9, the distance between the lighting device 8 and the inspection area 9 can be adjusted according to the size of the object to be inspected, so as to improve the convenience of the appearance inspection apparatus.

Further, as the utility model provides a pair of a concrete implementation of visual inspection device, sharp actuating mechanism establishes to X axle module or Y axle module, and the precision of X axle module and Y axle module is high, is convenient for finely tune the distance between lighting device 8 and the inspection area 9.

The utility model provides an appearance inspection system, an appearance inspection system include foretell appearance inspection device, and appearance inspection system still includes photo processing center (not shown in the figure), and the device of can focusing 7 and the 8 electricity of lighting device are connected in photo processing center.

The photo processing center is convenient for rapidly comparing the photographing data with the image comparison data, the object to be checked does not need to be checked by eyes manually, and the speed and the accuracy of checking the object to be checked are improved.

Referring to fig. 8, a method for inspecting appearance according to the present invention will now be described. The appearance inspection method comprises the following steps:

s1-1: selecting an object to be checked;

s1-2: selecting a plurality of pre-stored illumination data according to the object to be checked, wherein each pre-stored illumination data comprises wavelength data, brightness data, focal length data and image contrast data;

s1-3: selecting one pre-stored lighting data;

s1-4: controlling an illuminating device of an appearance inspection system to illuminate the inspected surface of the object to be inspected according to the current wavelength data and the current brightness data, and controlling a focus-adjustable photographing device of the appearance inspection system to photograph the inspected surface according to the focal length data to obtain photographing data;

s1-5: judging whether the current photographing data is the same as the current image contrast data or not, if so, returning to execute the step S1-3 until all the pre-stored lighting data are selected; and if the current photographing data is different from the current image contrast data, the object to be inspected is unqualified.

Through the steps S1-1 to S1-5, whether the inspected surface of the object to be inspected has flaws or not is judged, so that whether the object to be inspected is qualified or not is judged, and the speed of inspecting the object to be inspected is improved. Under the same wavelength data, focal length data and brightness data, the qualified photographing data corresponding to the object to be inspected must be consistent with the image contrast data. If the photographing data and the image contrast data are inconsistent under the same wavelength data, focal length data and brightness data, it is proved that the inspected surface of the object to be inspected has flaws, the object to be inspected is regarded as a defective product, and the object to be inspected is not suitable for leaving a factory.

Specifically, a plurality of objects to be inspected are provided, and each object to be inspected is inspected through the steps S1-1 to S1-5.

Specifically, a plurality of pre-stored illumination data are selected according to the object to be inspected, and each pre-stored illumination data corresponds to the inspection point with different heights on the object to be inspected.

Specifically, controlling the focus-adjustable photographing device according to the focal length data may be understood as adjusting a focal length between the focus-adjustable photographing device and the inspected surface according to the focal length data.

Further, referring to fig. 9, as a specific implementation manner of the appearance inspection method provided by the present invention, before the step S1-2, the method further includes the following steps:

s2-1: selecting a standard reference object according to the object to be checked;

s2-2: determining a plurality of detection points on the detected surface of the standard reference object according to a plurality of detection points on the detected surface of the object to be detected, wherein each detection point corresponds to each detection point one by one;

s2-3: selecting a detection point;

s2-4: adjusting the wavelength and the brightness of the illuminating device to illuminate one detection point, and simultaneously controlling the focal distance between the focusing photographing device and the current detection point to photograph so as to obtain a corresponding real-time image;

s2-5: judging whether the current real-time image is the clearest image, if so, recording the current real-time image as the image contrast data, simultaneously recording the focal length data, the wavelength data and the brightness data of the current focusing photographing device corresponding to the current real-time image, forming the current prestored lighting data by the current focal length data, the current image contrast data, the current wavelength data and the current brightness data, and returning to execute the step S2-3 until the detection point is confirmed to be selected; and if the current real-time image is not the clearest image, returning to the step of 2-4.

Several pre-stored illumination data are determined through the steps S2-1 to S2-5, so as to facilitate the inspection of the object to be inspected.

Specifically, the standard reference object is set as an object without defects, and if the object to be inspected is a lens piece, the standard reference object is set as a lens piece without defects; if the object to be inspected is the mobile phone shell, the standard reference object is set as the mobile phone shell without defects.

Further, as a specific embodiment of the visual inspection method provided by the present invention, step S2-5 is set as follows:

judging whether an electric signal corresponding to the current real-time image is in a threshold value or not through the focusing photographing device, if so, recording the current real-time image as image comparison data, simultaneously recording the focal length data, the wavelength data and the brightness data of the current focusing photographing device corresponding to the current real-time image, forming current prestored lighting data through the current focal length data, the current image comparison data, the current wavelength data and the current brightness data, and returning to execute the step S2-3 until the detection point is confirmed to be selected; and if the current real-time image is not the clearest image, returning to the step of 2-4.

When the real-time image is clearest, the electric signal of the image sensor of the focusing photographing device reaches a threshold value. When the focusing photographing device photographs without changing the focal length, the wavelength condition and the brightness condition are changed, the electric signal generated by the focusing photographing device changes in a distribution function, the distribution function changes in a wave crest, and when the electric signal reaches a threshold value, the electric signal is in the position of the wave crest. Or when the focusing photographing device photographs without changing the wavelength, the focal length condition and the brightness condition are changed, the electric signal generated by the focusing photographing device changes in a distribution function, the distribution function changes in a wave crest, and when the electric signal reaches a threshold value, the electric signal is in the wave crest position. Or when the focusable photographing device photographs without changing the brightness, the focal length condition and the wavelength condition are changed, the electric signal generated by the focusable photographing device changes in a distribution function, the distribution function changes in a wave crest, and when the electric signal reaches a threshold value, the electric signal is positioned at the wave crest position

Specifically, step S2-4 is set to: selecting the wavelength of an illuminating device according to the material of an object to be inspected, keeping the wavelength of the illuminating device unchanged, adjusting the brightness of the illuminating device to illuminate a detection point, and simultaneously controlling the focal length of the focusing photographing device to photograph the current detection point to obtain a corresponding real-time image.

Specifically, the real-time image is obtained under the illumination with the same wavelength, so that whether the electric signal corresponding to the real-time image reaches the threshold value or not is rapidly confirmed under the condition of the same wavelength, and the pre-stored illumination data corresponding to each detection point is obtained.

Further, as a specific embodiment of the visual inspection method provided by the present invention, step S1-5 is set as follows:

judging whether the current photographing data is the same as the current image contrast data or not through an image contrast system, if so, returning to execute the step S1-3 until all the pre-stored lighting data are selected; and if the current photographing data is different from the current image comparison data, the appearance inspection system outputs that the object to be inspected is unqualified.

The image contrast system is convenient for rapidly comparing the photographing data with the image contrast data, the object to be checked does not need to be checked by eyes manually and directly, and the speed and the accuracy of checking the object to be checked are improved.

Specifically, the image contrast system is the same as the photo processing center of the appearance inspection system described above.

Referring to fig. 10, the present invention further provides an appearance inspection system, including:

a selection module 101 for selecting an object to be inspected;

the data selection module 102 is used for selecting a plurality of pre-stored illumination data according to the object to be checked, wherein each pre-stored illumination data comprises wavelength data, brightness data, focal length data and image contrast data;

a pre-storing selection module 103, which selects one of the pre-stored lighting data;

the illumination photographing module 104 is used for controlling an illumination device of an appearance inspection system to illuminate the inspected surface of the object to be inspected according to the current wavelength data and the current brightness data, and controlling a focus-adjustable photographing device of the appearance inspection system to photograph the inspected surface according to the focal length data to obtain photographing data;

the image comparison module 105 is configured to determine whether the current photographing data is the same as the current image comparison data, and if the current photographing data is the same as the current image comparison data, return to the step of selecting one of the pre-stored lighting data until all of the pre-stored lighting data are selected; and if the current photographing data is different from the current image contrast data, the object to be inspected is unqualified.

Further, referring to fig. 10, as a specific implementation manner of the appearance inspection system provided by the present invention, the appearance inspection system further includes:

a reference selection module 106 for selecting a standard reference object according to the object to be checked;

a detection point positioning module 107, configured to determine a plurality of detection points on the detected surface of the standard reference object according to a plurality of detection points on the detected surface of the object to be detected, where each detection point corresponds to each detection point;

a detection point selection module 108 for selecting one of the detection points;

the real-time image acquisition module 109 is used for adjusting the wavelength and the brightness of the lighting device to light one detection point, and simultaneously controlling the focal distance between the focusing photographing device and the current detection point to photograph so as to obtain a corresponding real-time image;

a clearest image recognition module 1010, configured to determine whether the current real-time image is a clearest image, record the current real-time image as the image contrast data if the current real-time image is the clearest image, record the focal length data of the current focus-adjustable photographing device, the wavelength data of the current lighting device, and the brightness data corresponding to the current real-time image, form the current pre-stored lighting data according to the current focal length data, the current image contrast data, the current wavelength data, and the current brightness data, and return to the step of selecting one of the detection points until it is determined that the detection point is selected; and if the current real-time image is not the clearest image, returning to the step of executing the step of adjusting the wavelength and the brightness of the lighting device to light one detection point, and controlling the focusing photographing device to photograph the current detection point to obtain the corresponding real-time image.

Further, as a specific implementation manner of the present invention, the clearest image recognition module 1010 is set as: judging whether an electric signal corresponding to the current real-time image is in a threshold value or not through the focusing photographing device, if so, recording the current real-time image as image comparison data, simultaneously recording the focal length data, the wavelength data and the brightness data of the current focusing photographing device corresponding to the current real-time image, forming current prestored lighting data through the current focal length data, the current image comparison data, the current wavelength data and the current brightness data, and returning to execute the step of selecting one detection point until the detection point is confirmed to be selected; and if the current real-time image is not the clearest image, returning to the step of executing the step of adjusting the wavelength and the brightness of the lighting device to light one detection point, and controlling the focusing photographing device to photograph the current detection point to obtain the corresponding real-time image.

Further, as a specific embodiment of the present invention, the image comparison module 105 is configured to: judging whether the current photographing data is the same as the current image contrast data or not through an image contrast system, if so, returning to the step of selecting one pre-stored lighting data by the appearance inspection system until all the pre-stored lighting data are selected; and if the current photographing data is different from the current image comparison data, the appearance inspection system outputs that the object to be inspected is unqualified.

For a specific limitation of the visual inspection system, reference may be made to the above-mentioned limitation of a visual inspection method, which is not described herein again. The various modules in an appearance inspection system described above may be implemented in whole or in part by software, hardware, and combinations thereof. The modules can be embedded in a hardware form or independent from a processor of a computer device, and can also be stored in a storage in the computer in a software form, so that the processor can call and execute the modules.

Referring to fig. 11, the present invention further provides a computer device, which includes a memory, a processor and a computer program stored in the memory and operable on the processor, wherein the processor executes the computer program to implement the steps of the appearance inspection method, such as steps S1-1 to S1-5 shown in fig. 9, or the computer program implements the functions of the modules of the inspection apparatus, such as the functions of modules 105 to 1010 shown in fig. 10, when executed by the processor. To avoid repetition, further description is omitted here.

Referring to fig. 11, the present invention further provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program, and the computer program is executed by a processor to implement the steps of the visual inspection method. Such as steps S1-1 to S1-5 shown in fig. 9, or the computer program is executed by a processor to implement the functions of the respective modules of the above-described inspection apparatus, such as the functions of the modules 105 to 1010 shown in fig. 10. To avoid repetition, further description is omitted here.

It will be understood by those skilled in the art that all or part of the processes of implementing an appearance inspection method described above can be implemented by quality-related hardware through a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the method as described in the above embodiment ten. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. The non-volatile memory may include read only memory, programmable ROM, electrically erasable programmable ROM, or flash memory. Volatile memory may include random access memory or external cache memory IQ. Random access memory is available in a variety of forms such as, without limitation, static RAM, dynamic RAM, synchronous DRAM, double data rate SDRAM, enhanced SDRAM, synchronous DRAM, memory bus, direct RAM, direct memory bus dynamic RAM, and memory bus dynamic RAM.

Referring to fig. 1, fig. 2, fig. 12 and fig. 13, the present invention further provides an inspection apparatus, which is now described. An inspection apparatus comprises the image card device 1 and the image sensing device 2 of the inspection device, the focusable photographing device 7 and the illuminating device 8 of the appearance inspection device. An inspection apparatus further includes a switching device provided as the first switching device or the second switching device 10 a;

when the switching device is a first switching device, the first switching device has the same structure as the conveying device 5 and the clamping device 6 of the appearance inspection device;

when the switching device is set as a second switching device 10a, the detection region 4 and the inspection region 9 form the same region to be inspected 10b, the second switching device 10a has a plurality of output terminals, and the monochrome card 11 and the appearance inspection device are respectively fixed on both output terminals of the second switching device 10a, or the image sensing device 2 and the appearance inspection device are respectively fixed on both output terminals of the second switching device 10 a;

when the monochrome card 11 and the appearance inspection device are respectively fixed on the two output ends of the second switching device 10a, the second switching device 10a respectively drives the monochrome card 11 and the appearance inspection device to be positioned on one side of the region to be inspected 10 b;

when the image sensing device 2 and the appearance inspection device are respectively fixed to both output ends of the second switching device 10a, the second switching device 10a drives the image sensing device 2 and the appearance inspection device to be positioned on one side of the inspection region 10b, respectively.

Through the switching device, the lens piece is convenient to carry out light transmission inspection and surface defect inspection respectively, and the convenience of inspecting the lens piece is improved.

In particular, when the lens member is inspected for surface defects, the lens member is usually inspected for a fixed holder.

Further, referring to fig. 1, fig. 2, fig. 12 and fig. 13, as a specific embodiment of the inspection apparatus provided by the present invention, the inspection apparatus further includes a distance-increasing device 3, and the distance-increasing device 3 includes a distance-increasing mirror 31;

when the switching device is set as the first switching device, the arrangement of the distance increasing mirror 31 is the same as that of the distance increasing mirror 31 of the above-described inspection device;

when the switching device is the second switching device 10a, one end of the distance-increasing mirror 31 faces the monochromatic surface;

when the monochrome card 11 and the appearance inspection device are respectively fixed on the two output ends of the second switching device 10a, the distance increasing mirror 31 is fixed on the output end of the second switching device 10a connected with the monochrome card 11;

the distance-increasing mirror 31 is disposed on one side of the inspection region 10b when the image sensing device 2 and the appearance inspection device are fixed to both output ends of the second switching device 10a, respectively.

The second switching device 10a facilitates the synchronous movement of the distance-increasing lens 31 and the monochrome graphic card 11, or the synchronous movement of the distance-increasing lens 31 and the image sensing device 2. When the switching device is the first switching device, the function of the distance increasing mirror 31 is the same as the function of the distance increasing mirror 31 of the above-described inspection device

Further, referring to fig. 1, fig. 2, fig. 12 and fig. 13, as a specific embodiment of the inspection apparatus provided by the present invention, the distance-increasing device 3 further includes an adjusting movable device 32, the distance-increasing mirror 31 is fixed at an output end of the adjusting movable device 32, when the switching device is set as the first switching device, the adjusting movable device 32 and the adjusting movable device 32 of the inspection apparatus are set in the same manner and function;

when the switching device is set as the second switching device 10a, the adjusting movable device 32 avoids the area to be inspected 10b, and the adjusting movable device 32 is used for driving the distance-increasing mirror 31 to be far away from or close to the monochromatic surface;

when the monochrome card 11 and the appearance inspection device are fixed to both output terminals of the second switching device 10a, respectively, the adjustment movable device 32 is fixed to the output terminal of the second switching device 10a to which the monochrome card 11 is connected.

The second switching device 10a is convenient for driving the movable adjusting device 32 and the distance-increasing mirror 31 to move synchronously with the monochrome image card 11, or driving the movable adjusting device 32 and the distance-increasing mirror 31 to move synchronously with the image sensing device 2.

Further, referring to fig. 1, fig. 2, fig. 12 and fig. 13, as a specific embodiment of the inspection apparatus provided by the present invention, the card device 1 further includes an adjustment movement device 12, and the monochrome card 11 is fixed on an output end of the adjustment movement device 12;

when the switching means is set as the first switching means, the regulating-motion means 12 is set in the same manner and functions as the regulating-motion means 12 of the one inspection means;

when the switching means is set to the second switching means 10a, the adjustment movement means 12 avoids the area to be inspected 10 b;

when the monochrome card 11 and the appearance inspection device are respectively fixed on both output ends of the second switching device 10a, the monochrome card 11 is fixed on the output end of the second switching device 10a by the adjusting movement device 12;

when the image sensing device 2 and the appearance inspection device are respectively fixed to both output ends of the second switching device 10a, the adjustment movement device 12 drives the monochrome card 11 away from or close to the inspection region 10b,

the adjusting movement device 12 is provided to one side of the waiting area 10 b.

When the monochrome card 11 and the visual inspection device are respectively fixed at the two output ends of the second switching device 10a, the second switching device 10a is convenient for driving the adjusting movement device 12 to move synchronously with the monochrome card 11. Adjustment movement means 12 controls the action of the movement of monochrome card 11.

Further, as the utility model provides a pair of a specific implementation of check out test set, second auto-change over device 10a establishes to X axle module or Y axle module, and the activity precision of second auto-change over device 10 a's output shaft is high, the activity of the accurate control connection of being convenient for structure on the output shaft. The second switching device 10a is disposed above the preset stage. The adjusting movement device 12 is provided as a Z-axis module or cylinder. The adjustment movement 32 is provided as a Z-axis module or cylinder.

Further, please refer to fig. 14 and fig. 15, the utility model provides a still provide a lens piece, it is right now the utility model provides a lens piece explains, lens piece includes lens 11a and fixing base 11c, lens 11a inlays and establishes in fixing base 11c, the light passing area of lens 11a is established to light passing hole 11b, it establishes on a terminal surface of fixing base 11c to be examined face 11d, the checkpoint includes first checkpoint 11e, second checkpoint 11f and third checkpoint 11g, the centre of a circle of first checkpoint 11e, second checkpoint 11f and third checkpoint 11g is located a straight line, first checkpoint 11e, second checkpoint 11f and third checkpoint 11g are close to lens 11a from the outward flange of a terminal surface of fixing base 11c in proper order. The first checkpoint 11e, the second checkpoint 11f and the third checkpoint 11g differ in height. The lens member can be inspected by using the above-described inspection apparatus, appearance inspection system, and appearance inspection method.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. An inspection apparatus characterized by comprising an inspection means, an appearance inspection means and a switching means,

2. An inspection apparatus as claimed in claim 1, wherein said inspection device further comprises a distance increasing device, said distance increasing device comprising a distance increasing mirror;

3. The inspection apparatus according to claim 2, wherein said distance-increasing means further comprises an adjusting movable means, said distance-increasing mirror is fixed at an output end of said adjusting movable means, said adjusting movable means avoids said detection area when said switching means is set as said first switching means, said adjusting movable means is used for driving said distance-increasing mirror to move away from or close to an acquisition end of said image sensing means;

4. An inspection apparatus according to claim 1, wherein said card means further comprises adjustment movement means, said monochrome card being secured to an output of said adjustment movement means;

the adjusting motion device is arranged on one side of the area to be detected.

5. An inspection apparatus according to claim 4, wherein said second switching means is provided as an X-axis module or a Y-axis module.

6. An inspection apparatus according to claim 1, wherein said transport means has a plurality of output ends, said holding means is provided in plurality, each of said holding means corresponds one-to-one to an output end of said transport means, and said holding means is fixed to an output end of a corresponding said transport means.

7. An inspection apparatus according to claim 6, wherein the holding end of the holding means is a fixed plate having a through hole, or two elastic pieces disposed opposite to each other, or two output shafts of the finger cylinder.

8. The inspection apparatus of claim 1, wherein said image card means further comprises a backlight means with adjustable brightness, said monochrome image card is configured as a light-transmissive image card, a monochrome surface of said monochrome image card is configured as a monochrome light-transmissive plane, said backlight means is disposed on a side of said monochrome image card facing away from said monochrome surface, and a light-emitting side of said backlight means faces said monochrome image card.

9. An inspection apparatus as claimed in claim 8, wherein said monochrome card is mounted on said backlight means.

10. An inspection apparatus according to any one of claims 1 to 9, wherein said monochrome face is provided as a black plane or a white plane.