CN113049596B - Appearance inspection apparatus - Google Patents
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- CN113049596B CN113049596B CN202110242892.6A CN202110242892A CN113049596B CN 113049596 B CN113049596 B CN 113049596B CN 202110242892 A CN202110242892 A CN 202110242892A CN 113049596 B CN113049596 B CN 113049596B
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- 238000007689 inspection Methods 0.000 title claims abstract description 178
- 230000007246 mechanism Effects 0.000 claims abstract description 139
- 239000003550 marker Substances 0.000 claims description 33
- 238000011179 visual inspection Methods 0.000 claims description 30
- 230000035939 shock Effects 0.000 claims description 16
- 238000001514 detection method Methods 0.000 claims description 9
- 238000005286 illumination Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 3
- 230000007306 turnover Effects 0.000 abstract description 18
- 230000009471 action Effects 0.000 description 14
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8806—Specially adapted optical and illumination features
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8806—Specially adapted optical and illumination features
- G01N2021/8841—Illumination and detection on two sides of object
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
- G01N2021/8854—Grading and classifying of flaws
- G01N2021/8867—Grading and classifying of flaws using sequentially two or more inspection runs, e.g. coarse and fine, or detecting then analysing
- G01N2021/887—Grading and classifying of flaws using sequentially two or more inspection runs, e.g. coarse and fine, or detecting then analysing the measurements made in two or more directions, angles, positions
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
- G01N2021/8854—Grading and classifying of flaws
- G01N2021/888—Marking defects
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
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- General Health & Medical Sciences (AREA)
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- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention relates to the technical field of appearance inspection, and particularly discloses appearance inspection equipment. The device comprises a stand, a tray assembly, an appearance inspection mechanism, a tray overturning mechanism and a tray bearing mechanism. The tray overturning mechanism is used for overturning the tray assembly bearing the object to be detected; the tray overturning mechanism is arranged on the stand and used for overturning a tray assembly bearing an object to be detected; the tray bearing mechanism is arranged on the stand and used for bearing the tray assembly and enabling the tray assembly to move between the appearance inspection mechanism and the tray overturning mechanism. The appearance inspection equipment can turn over the tray assembly bearing the object to be inspected, so that the appearance inspection can be performed on the front surface and the back surface of the object to be inspected, the inspection efficiency of the appearance inspection equipment can be improved, the quality risk of products can be reduced, the appearance inspection can be performed on different types of products, the variety of the product inspection of the appearance inspection equipment can be improved, and the misjudgment risk of the appearance of the products can be reduced.
Description
Technical Field
The invention relates to the technical field of appearance inspection, in particular to appearance inspection equipment.
Background
In the process of producing and assembling the camera module of electronic products such as mobile phones, watches, tablet computers and the like, the quality requirement on the camera module is very high, and the small flaws can lead to scrapping of the whole lens module, so that the control of the quality of the incoming material is particularly important in the process of producing and assembling the lens module, and the appearance inspection of the incoming material is one of important links.
The appearance inspection of the existing lens module is mainly realized through manual inspection, and risks of missed inspection and misjudgment exist. And the part adopts the mode of production line inspection to only inspect single product, and inspection surface is single, increases the quality risk of product easily.
Disclosure of Invention
The invention discloses appearance inspection equipment, which is used for solving the problems of high misjudgment risk, single detection product and single detection surface of the appearance inspection of a lens module in the prior art.
In order to achieve the above object, an embodiment of the present invention discloses an appearance inspection apparatus including:
A stand;
A tray assembly;
The appearance checking mechanism is arranged on the stand and used for checking the appearance of an object to be checked, and the tray overturning mechanism comprises a positioning frame, a clamping frame and a clamping jaw assembly;
the tray overturning mechanism is arranged on the stand and used for overturning the tray assembly bearing the object to be detected, and comprises a positioning frame, a clamping frame and a clamping jaw assembly; and
The tray bearing mechanism is arranged on the stand and used for bearing the tray assembly and enabling the tray assembly to move between the appearance inspection mechanism and the tray overturning mechanism;
The locating rack is arranged on the rack table and is provided with the tray bearing mechanism, the clamping rack is rotatably arranged on the locating rack, the clamping jaw assembly is arranged on the clamping rack, a through hole is formed in the clamping rack, and the clamping jaw assembly is arranged on the clamping rack and is used for clamping the tray assembly in the through hole.
The tray overturning mechanism is arranged in the appearance inspection equipment, and under the action of the tray overturning mechanism, the tray assembly bearing the object to be inspected can be overturned, so that the appearance inspection can be performed on the front surface and the back surface of the object to be inspected, the inspection efficiency of the appearance inspection equipment can be improved, and the quality risk of products is reduced. In the actual design process, different types of products can be borne by arranging different types of tray assemblies, so that appearance inspection can be carried out on the different types of products, the diversity of product inspection of the appearance inspection equipment can be improved, and the misjudgment risk of the appearance of the products is reduced.
When the tray assembly needs to be overturned, the tray assembly is firstly moved to the lower part of the tray overturning mechanism by utilizing the tray bearing mechanism, then the tray assembly is lifted to the through hole, the tray assembly is clamped by utilizing the clamping jaw assembly, at the moment, the tray assembly can be overturned by controlling the clamping frame to rotate, after the tray assembly is overturned in place, the clamping jaw assembly is loosened, and the tray assembly is lowered onto the tray bearing mechanism to execute the follow-up inspection of the object to be inspected.
As an optional implementation manner, in an embodiment of the present invention, the tray assembly includes a first tray and a second tray that are stacked, and a plurality of carrying spaces for carrying objects to be inspected are defined between the first tray and the second tray;
The clamping jaw assembly comprises a first clamping jaw and a second clamping jaw, the first clamping jaw and the second clamping jaw are both arranged on the clamping frame, the first clamping jaw is used for clamping the first tray, and the second clamping jaw is used for clamping the second tray. The first clamping jaw and the second clamping jaw clamp the first tray and the second tray, so that stability of the tray assembly in the overturning process can be guaranteed, the tray assembly or an object in the tray assembly is prevented from falling, and the structure is stable and reliable.
As an optional implementation manner, in an embodiment of the present invention, a guide sliding rail is fixedly arranged on the clamping frame, the guide sliding rail extends along a first direction of the clamping frame, the first clamping jaw and the second clamping jaw are in a consistent structure, each of the first clamping jaw and the second clamping jaw comprises a first clamping block and a second clamping block, and the first clamping block and the second clamping block are slidably mounted on the guide sliding rail;
The clamping jaw assembly further comprises a driving assembly, and the driving assembly is arranged on the clamping frame so that the first clamping block and the second clamping block are far away from each other to be in an open clamping state. When the driving assembly works, the first clamping block and the second clamping block can be driven to move along the guide sliding rail, so that the first clamping block and the second clamping block are far away from each other, are in an open clamping state, and further are convenient to clamp the tray assembly.
As an alternative embodiment, in an embodiment of the present invention, the driving assembly includes:
The clamping opening cylinder is arranged on the clamping frame, and the stretching direction of the clamping opening cylinder is perpendicular to the extending direction of the guide sliding rail;
The clamping opening block is arranged on a piston rod of the clamping opening cylinder, the clamping opening block is positioned between the first clamping block and the second clamping block, a first inclined surface is arranged on one side, close to the first clamping block, of the clamping opening block, a second guiding inclined surface is arranged on one side, close to the second clamping block, of the clamping opening block, and the distance between the first inclined surface and the second inclined surface is gradually reduced in the extending direction of the piston rod; when the piston rod is driven to move along the extending direction perpendicular to the guide sliding rail by the clamping opening cylinder, the clamping opening blocks synchronously move, and along with the continuous extension of the piston rod, the first inclined surface pushes the first clamping blocks to move along the guide sliding rail to be far away from the clamping opening cylinder, and the second inclined surface pushes the second clamping blocks to move along the guide sliding rail to be far away from the clamping opening cylinder. When the clamping opening cylinder drives the clamping opening block to move along the direction perpendicular to the guide sliding rail, the first clamping block and the second clamping block can be driven to be far away from each other through the action of the first inclined surface and the second inclined surface on the clamping opening block, so that the first clamping jaw and the second clamping jaw are in the clamping opening state, and further the tray assembly in the through hole can be clamped, and the clamping device is compact in structure, stable and reliable.
As an alternative embodiment, in an embodiment of the present invention, a first cam follower on the first clamping block, the first clamping block being in contact with the first inclined surface through the first cam follower;
The second clamping block is provided with a second cam follower, and the second clamping block is contacted with the second inclined plane through the second cam follower, so that friction and noise in the clamping opening process of the first clamping jaw and the second clamping jaw can be reduced.
As an alternative embodiment, in an embodiment of the present invention, the tray overturning mechanism further includes:
the limiting block is arranged on the clamping frame and is positioned between the first clamping block and the second clamping block;
the limiting screw is arranged on the limiting block; and
And the elastic element is positioned between the first clamping block and the second clamping block, one elastic element is connected between the clamping frame and the first clamping block, and the other elastic element is connected between the clamping frame and the second clamping block. Because be provided with stop screw and elastic component on the stopper in this embodiment, through the effect of this stop screw and elastic component, can adjust the interval between first clamp splice and the second clamp splice, simultaneously, through the effect of this elastic component, can pull to hold first clamp splice and second clamp splice. When the driving assembly drives the opening clamping blocks to move to the initial position, the elastic element can drive the first clamping blocks and the second clamping blocks to be close to each other, and then the tray assembly can be clamped, and the tray assembly is simple in structure and convenient to realize.
As an optional implementation manner, in an embodiment of the present invention, the clamping frame includes a first clamping plate and a second clamping plate that are stacked and arranged at intervals, opposite ends of the first clamping plate and the second clamping plate are connected and fixed through a connecting block, and the through hole penetrates through the first clamping plate and the second clamping plate;
the first clamping jaw is slidably arranged on one side of the first clamping plate, which is close to the second clamping plate;
The second clamping jaw is slidably mounted on one side of the second clamping plate, which is close to the first clamping plate.
The first clamping jaw and the second clamping jaw are arranged in the gap between the first clamping plate and the second clamping plate, the structure is compact, the miniaturization design of the tray overturning mechanism is convenient to realize, the appearance of the whole clamping frame is tidier, the first clamping jaw and the second clamping jaw can be hidden in the clamping frame, the interference of external environment is not easy to occur, and the work is more stable and reliable.
As an alternative implementation manner, in an embodiment of the present invention, a rotating shaft is disposed on the connection block, and the rotating shaft is mounted on the positioning frame through a bearing seat;
The tray overturning mechanism further comprises a driving piece, the driving piece is installed on the locating rack, and the driving piece is connected with the rotating shaft through a coupler to drive the clamping rack to overturn.
When in actual work, the driving piece rotates to drive the clamping frame to rotate, and finally the tray assembly on the clamping frame can be driven to realize overturning, so that the structure is simple and the operation is convenient.
As an alternative embodiment, in an embodiment of the present invention, the flip angle of the gripping rack is not less than 180 °. In the invention, the overturning angle of the clamping frame is preferably 180 degrees, and the reverse side of the object on the tray assembly can be overturned by overturning the clamping frame by 180 degrees, so that the appearance inspection of the front side and the reverse side of the object is facilitated.
As an alternative embodiment, in an embodiment of the present invention, the appearance inspection mechanism includes:
the bracket is arranged on the stand and is arranged above the tray bearing mechanism;
the X-axis electric cylinder is arranged on the bracket;
the mounting seat is arranged on the X-axis electric cylinder;
the Z-axis electric cylinder is arranged on the mounting seat and is vertical to the X-axis electric cylinder; and
The appearance inspection assembly is installed on the Z-axis electric cylinder through the installation assembly and used for inspecting objects to be inspected on the tray assembly.
When the tray bearing mechanism moves to the lower part of the bracket, the X-axis electric cylinder and the Z-axis electric cylinder are controlled to move, so that the appearance inspection assembly is aligned with objects in the tray assembly, and the objects in the tray assembly can be inspected one by one.
As an alternative implementation manner, in an embodiment of the present invention, the appearance inspection assembly includes at least one inspection camera, and a photographing lens of the inspection camera is disposed toward the tray carrying mechanism. The object in the tray assembly is shot by the inspection camera, then the shot picture is uploaded to the controller of the appearance inspection equipment and is compared with the picture stored in the controller in advance, and whether the appearance of the shot object is qualified or not can be judged, so that the method is simple and quick.
As an alternative embodiment, in an embodiment of the present invention, the mounting assembly is provided with a lighting component thereon. The setting of this lighting component can improve the luminance of tray subassembly place environment, and then can carry out accurate inspection to the object on the tray subassembly.
As an alternative implementation, in an embodiment of the present invention, the appearance inspection device further includes a marking assembly mounted to the mounting assembly for marking failed objects on the tray assembly. The unqualified objects on the tray assembly are marked through the marking assembly, so that the unqualified objects on the tray assembly are conveniently selected in the subsequent process, and the production and assembly efficiency of electronic products and the like can be accelerated.
As an alternative implementation, in an embodiment of the present invention, the marking assembly includes:
The expansion direction of the marking air cylinder is consistent with the expansion direction of the Z-axis electric cylinder, and the marking air cylinder is arranged on the mounting assembly;
the marker pen buffer part is arranged on the marker cylinder; and
And the marking pen is detachably arranged on the marking pen buffer part.
When the appearance inspection assembly detects that the appearance of the currently shot object is unqualified, the marking cylinder is controlled to move downwards through the action of the controller of the appearance inspection pressing device, the corresponding unqualified object is marked by the marking pen, the marking pen is installed on the marking cylinder through the marking pen buffer part, and the phenomenon that the marking cylinder is broken or bent due to excessive force when the marking cylinder marks downwards is avoided.
As an optional implementation manner, in an embodiment of the present invention, the marker pen includes a main body and a pen cover, and the marker assembly further includes a marker pen detection sensor, where the marker pen sensor is disposed on the main body and is used for detecting whether the pen cover is covered on the main body, and the marker pen sensor can transmit a signal of detection of the marker pen sensor to a controller of the appearance inspection device, so as to facilitate improvement of control accuracy of the appearance inspection device.
As an alternative implementation manner, in an embodiment of the present invention, a placement position for placing the marker pen is provided on the stand. When the equipment is in a standby state, the marker pen moves to the place to cover the pen point tightly, so that the ink in the marker pen is prevented from volatilizing.
As an alternative embodiment, in an embodiment of the present invention, the tray carrying mechanism further includes:
the Y-axis electric cylinder is arranged on the stand;
the linear guide rail is arranged on the stand and is parallel to the Y-axis electric cylinder, and the linear guide rail extends to the bottoms of the appearance inspection mechanism and the tray overturning mechanism; and
The mounting plate is arranged between the Y-axis electric cylinder and the linear guide rail and slides along the linear guide rail under the drive of the Y-axis inductor;
And the inspection table is arranged on the mounting plate in a lifting manner through a guide shaft.
During actual operation, the tray component is placed on the inspection table, and can be placed on the inspection table by manual work, and can also be moved onto the inspection table by an upper and lower feeding mechanism or a manipulator and the like. Meanwhile, because linear guide extends to the bottom of appearance inspection mechanism and tray tilting mechanism, when Y axle jar during operation, can drive the tray subassembly and remove between appearance inspection mechanism and tray tilting mechanism, when the tray subassembly removes to appearance inspection mechanism bottom, the object that appearance inspection mechanism can on the tray subassembly carries out the appearance inspection, when the tray subassembly removes to the bottom of tray tilting mechanism, the inspection desk rises, can remove the tray subassembly to clamp and get in the through-hole in the frame, at this moment, through the effect of clamping jaw subassembly, can clamp the tray subassembly, then reuse driving piece drive clamp get the frame rotatory upset that can carry out the tray subassembly.
As an alternative implementation manner, in an embodiment of the present invention, the mounting board is provided with a yielding through hole, and the appearance inspection device further includes:
The jacking air cylinder is arranged on the stand and located at the bottom of the tray overturning mechanism, penetrates through the abdication through hole to jack up the inspection table, and is simple in structure and convenient to realize.
As an optional implementation manner, in an embodiment of the present invention, the appearance inspection device further includes a housing, where the housing is covered on the stand and surrounds the outer circumferences of the appearance inspection mechanism, the tray overturning mechanism and the tray bearing mechanism, and a shock pad is disposed between the housing and the stand, so that vibration of the appearance inspection device can be reduced, and inspection efficiency and precision of the appearance inspection device can be improved.
In an optional implementation manner, in an embodiment of the present invention, a hard cushion block is laid on the shock pad, and the outer cover is pressed on the shock pad through the hard cushion block, so that the arrangement can ensure the stress uniformity of the shock pad, and improve the shock absorbing effect of the shock pad.
As an alternative implementation manner, in an embodiment of the present invention, the tray assembly includes multiple types, the tray turnover mechanism is provided with a detection element for checking the type of the tray assembly, and by using the action of the detection element, the type of the tray assembly on the tray turnover mechanism can be determined, so as to determine the product type.
Compared with the prior art, the appearance inspection equipment has at least the following beneficial effects:
The tray overturning mechanism is arranged in the appearance inspection equipment, and under the action of the tray overturning mechanism, the tray assembly bearing the object to be inspected can be overturned, so that the appearance inspection can be performed on the front surface and the back surface of the object to be inspected, the inspection efficiency of the appearance inspection equipment can be improved, and the quality risk of products is reduced. In the actual design process, different types of products can be borne by arranging different types of tray assemblies, so that appearance inspection can be carried out on the different types of products, the diversity of product inspection of the appearance inspection equipment can be improved, and the misjudgment risk of the appearance of the products is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of an appearance inspection apparatus according to an embodiment of the present invention;
fig. 2 is an enlarged view of the region M in fig. 1;
FIG. 3 is a top view of an embodiment of the disclosed visual inspection apparatus with the housing removed;
FIG. 4 is a perspective view showing the appearance inspection device according to the embodiment of the present invention after the cover is removed;
FIG. 5 is a schematic perspective view of a tray assembly according to an embodiment of the present invention;
fig. 6 is a schematic perspective view of a tray turnover mechanism according to an embodiment of the present invention;
FIG. 7 is a front view of a tray turnover mechanism disclosed in an embodiment of the present invention;
FIG. 8 is a top view of a tray turnover mechanism disclosed in an embodiment of the present invention;
FIG. 9 is an exploded schematic view of a tray turnover mechanism disclosed in an embodiment of the present invention;
Fig. 10 is an enlarged view of the N region in fig. 9;
FIG. 11 is a schematic perspective view of a jaw assembly according to an embodiment of the present invention;
fig. 12 is a schematic perspective view of a part of the structure of a tray turnover mechanism according to an embodiment of the present invention;
FIG. 13 is a schematic perspective view of an appearance inspection mechanism according to an embodiment of the present invention;
Fig. 14 is a front view of a tray carrying mechanism and a jacking cylinder disclosed in an embodiment of the present invention.
Icon: 10. a stand; 20. appearance checking mechanism; 21. a bracket; 211. placing the position; 22. an X-axis electric cylinder; 23. a mounting base; 24. a Z-axis electric cylinder; 25. an appearance inspection assembly; 251. checking a camera; 26. a mounting assembly; 27. a lighting member; 28. a marking assembly; 281. marking a cylinder; 282. a marker pen buffer section; 283. a marker pen; 30. a tray overturning mechanism; 31. a positioning frame; 311. a driving member; 312. a bearing seat; 32. a clamping frame; 321. a guide rail; 322. a limiting block; 323. a limit screw; 324. a rotation shaft; 325. a through hole; 3201. a first gripping plate; 3202. a second clamping plate; 3203. a connecting block; 33. a jaw assembly; 331. a first jaw; 332. a second jaw; 3301. a first clamping block; 3302. a second clamping block; 3303. a first cam follower; 3304. a second cam follower; 34. a drive assembly; 341. opening a clamping cylinder; 342. opening a clamping block; 3421. a first inclined surface; 3422. a second inclined surface; 35. a coupling; 40. a tray carrying mechanism; 41. a Y-axis electric cylinder; 42. a linear guide rail; 43. a mounting plate; 44. an inspection station; 45. a guide shaft; 50. a tray assembly; 51. a first tray; 52. a second tray; 53. a carrying space; 60. jacking the air cylinder; 70. an outer cover; 80. a shock pad; 90. and a hard cushion block.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present invention and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present invention will be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "mounted," "configured," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "first," "second," and the like, are used primarily to distinguish between different devices, elements, or components (the particular species and configurations may be the same or different, and are not used to indicate or imply the relative importance and number of devices, elements, or components so indicated.
The following detailed description will be given with reference to the accompanying drawings.
Referring to fig. 1 to 5, according to an embodiment of the present invention, an appearance inspection apparatus is provided, where the appearance inspection apparatus may be used for performing appearance inspection on a substrate, a lens, a rubber-insulated wire, and other products of a camera module. The visual inspection apparatus includes a stand 10, a visual inspection mechanism 20, a tray overturning mechanism 30, a tray carrying mechanism 40, and a tray assembly 50.
Wherein, the appearance checking mechanism 20 is arranged on the stand 10 for checking the appearance of the object to be checked; the tray overturning mechanism 30 is arranged on the stand 10 and is used for overturning a tray assembly 50 bearing an object to be inspected; the tray carrying mechanism 40 is provided to the stand 10 for carrying the tray assembly 50 and moving the tray assembly 50 between the visual inspection mechanism 20 and the tray flipping mechanism 30.
In actual operation, the tray assembly 50 carrying the object to be inspected is firstly placed on the tray carrying mechanism 40, then the tray assembly 50 is moved to the position of the appearance inspection mechanism 20 by the tray carrying mechanism 40, the front surface of the object to be inspected on the tray assembly 50 is inspected by the appearance inspection mechanism 20, then the tray assembly 50 is moved to the position of the tray turning mechanism 30 by the tray carrying mechanism 40, the tray assembly 50 is turned by the tray turning mechanism 30, then the tray assembly 50 is moved to the position of the appearance inspection mechanism 20, and at this time, the back surface of the tray assembly 50 can be inspected again by the appearance inspection mechanism 20.
That is, the appearance inspection apparatus of the present invention is provided with the tray overturning mechanism 30, and by the action of the tray overturning mechanism 30, the tray assembly 50 carrying the object to be inspected can be overturned, so that the appearance inspection can be performed on the front and the back of the object to be inspected, the inspection efficiency of the appearance inspection apparatus can be improved, and the product quality risk can be reduced. In the actual design process, by arranging the tray assemblies 50 of different types, different types of products can be borne, and further appearance inspection can be performed on the different types of products, so that the diversity of product inspection of the appearance inspection equipment can be improved, and the misjudgment risk of the appearance of the products is reduced.
In particular, the stand 10 of the present application is provided in a columnar structure, which may be, for example, a cylinder, a prism, an elliptic cylinder, or other irregularly shaped columnar structure. Fig. 1 in the present application shows a manner in which the stand 10 is provided in a prismatic structure, and a structure such as a wiring box is provided inside the stand 10, so that power supply to power-consuming components and the like of the visual inspection apparatus is facilitated. In actual installation, the appearance inspection mechanism 20, the tray carrying mechanism 40 and the tray overturning mechanism 30 are all arranged on the table top at the uppermost end of the stand 10, and the structure is simple and convenient to assemble.
Referring to fig. 1 and 2, in order to protect the appearance inspection mechanism 20, the tray carrying mechanism 40 and the tray overturning mechanism 30, the appearance inspection apparatus in this embodiment is further provided with a housing 70, and the housing 70 is provided on the stand 10 and includes the outer circumferences of the appearance inspection mechanism 20, the tray overturning mechanism 30 and the tray carrying mechanism 40, so that the interference and influence of the external environment on the appearance inspection mechanism 20, the tray overturning mechanism 30 and the tray carrying mechanism 40 are prevented, and dust-free inspection of products is facilitated. By way of example, the housing 70 in this embodiment may be a cylindrical housing, a prismatic housing, or other shaped housing, etc.
The shock pad 80 is provided between the housing 70 and the stand 10 in the present embodiment, so that vibration of the appearance inspection apparatus can be reduced, and inspection efficiency and accuracy of the appearance inspection apparatus can be improved. Optionally, the shock pad 80 in this embodiment may be a rubber pad, a silica gel pad or other block structures with a certain elasticity, and has a simple structure and a good shock absorbing effect.
Further, a hard cushion block 90 is paved on the shock pad 80 in this embodiment, and the outer cover 70 is pressed on the shock pad 80 through the hard cushion block 90, so that the stress uniformity of the shock pad 80 can be ensured, and the shock absorbing effect of the shock pad 80 is improved. Alternatively, the hard pad 90 in this embodiment may be an iron block, an alloy block, or other solid metal block structure.
Referring to fig. 3 to 6, the tray assembly 50 in the present embodiment includes a first tray 51 and a second tray 52 stacked together, wherein a plurality of carrying spaces 53 for carrying objects to be inspected are defined between the first tray 51 and the second tray 52. In actual use, the object to be inspected is placed in the carrying space 53, and at this time, by the action of the first tray 51 and the second tray 52, the object to be inspected can be prevented from falling off the tray assembly 50 during the overturning process of the tray assembly 50.
It can be appreciated that the tray assembly 50 in this embodiment has a plurality of different types, and can be specifically set according to the object to be carried, so that the appearance inspection device of the present invention can perform appearance inspection on a plurality of products, and can improve the variety of product inspection of the appearance inspection device of the present invention. In the actual appearance inspection, the first tray 51 or the second tray 52 on the upper surface of the tray assembly 50 needs to be removed and then the appearance inspection is performed, so that the first tray 51 or the second tray 52 is prevented from covering the object to be inspected.
The first tray 51 and the second tray 52 in the present embodiment may be in the shape of a disc, a square disc, an oval disc, a polygonal disc, or other irregular disc, which is within the scope of the present invention as long as they are other modifications within the spirit of the present invention.
In some embodiments of the present invention, the pallet inverting mechanism 30 includes a positioning rack 31, a gripping rack 32, and a jaw assembly 33.
Wherein, the positioning frame 31 is arranged on the stand 10 and is erected above the tray bearing mechanism 40; the clamping frame 32 is rotatably mounted on the positioning frame 31, and a through hole 325 is arranged on the clamping frame 32; the jaw assembly 33 is mounted to the gripping frame 32 for gripping the tray assembly 50 located within the through-hole 325.
When the tray assembly 50 needs to be turned over, the tray bearing mechanism 40 is utilized to move the tray assembly 50 below the tray turning mechanism 30, then other mechanisms (such as a jacking cylinder below) are utilized to jack up the tray assembly 50 to the through hole 325, then the clamping jaw assembly 33 is utilized to clamp the tray assembly 50, at this time, the clamping jaw assembly 33 is controlled to rotate to turn over the tray assembly 50, after the tray assembly 50 is turned over in place, the clamping jaw assembly 33 is released, and the tray assembly 50 is lowered onto the tray bearing mechanism 40 to execute subsequent inspection of the object to be inspected.
Optionally, the turning angle of the gripping frame 32 in this embodiment is not less than 180 °, in this embodiment, the turning angle of the gripping frame 32 is preferably 180 °, and by turning the gripping frame 32 by 180 °, the reverse side of the object on the tray assembly 50 can be turned over, so that the appearance inspection on the obverse and reverse sides of the object is facilitated.
Specifically, the clamping jaw assembly 33 in the present embodiment includes a first clamping jaw 331 and a second clamping jaw 332, where the first clamping jaw 331 and the second clamping jaw 332 are both disposed on the clamping frame 32, the first clamping jaw 331 is used for clamping the first tray 51, and the second clamping jaw 332 is used for clamping the second tray 52. The first clamping jaw 331 and the second clamping jaw 332 clamp the first tray 51 and the second tray 52, so that stability of the tray assembly 50 in the overturning process can be guaranteed, the tray assembly 50 or objects in the tray assembly 50 are prevented from falling, and the structure is stable and reliable.
Alternatively, in other embodiments of the present invention, the clamping jaw assembly 33 may further include more than two clamping jaws, where a tray may be clamped by using multiple clamping jaws, which is simple in structure and easy to implement.
Referring to fig. 6 to 7, the clamping frame 32 in the present embodiment includes a first clamping plate 3201 and a second clamping plate 3202 which are stacked and arranged at intervals, opposite ends of the first clamping plate 3201 and the second clamping plate 3202 are connected and fixed by a connecting block 3203, and a through hole 325 penetrates the first clamping plate 3201 and the second clamping plate 3202; the first clamping jaw 331 is slidably mounted on a side of the first clamping plate 3201 adjacent to the second clamping plate 3202; the second clamping jaw 332 is slidably mounted to a side of the second clamping plate 3202 adjacent to the first clamping plate 3201. That is, the first clamping jaw 331 and the second clamping jaw 332 in the present embodiment are disposed in the gap between the first clamping plate 3201 and the second clamping plate 3202, the structure is compact, the compact design of the tray turnover mechanism 30 is convenient to be realized, the appearance of the whole clamping frame 32 is more neat, the first clamping jaw 331 and the second clamping jaw 332 can be hidden in the clamping frame 32, the interference of the external environment is not easy to be caused, and the operation is more stable and reliable.
Further, a rotation shaft 324 is provided on the connection block 3203, and the rotation shaft 324 is mounted on the positioning frame 31 through the bearing housing 312. The tray turnover mechanism 30 further includes a driving member 311, the driving member 311 is mounted on the positioning frame 31, and the driving member 311 is connected with the rotating shaft 324 through the coupling 35 to drive the gripping frame 32 to turn over. Alternatively, the driving member 311 in the present embodiment may be a rotary cylinder, a driving motor, or the like. In actual operation, the driving member 311 rotates to drive the clamping frame 32 to rotate, and finally drives the tray assembly 50 on the clamping frame 32 to overturn, so that the structure is simple and the operation is convenient.
Referring to fig. 8 to 12, in the initial state, the first clamping jaw 331 and the second clamping jaw 332 in the present embodiment are both in a closed state, and in this state, the first clamping jaw 331 and the second clamping jaw 332 can stably clamp the tray assembly 50. The clamping frame 32 in this embodiment is fixedly provided with a guide sliding rail 321, the guide sliding rail 321 extends along a first direction of the clamping frame 32, and the first clamping jaw 331 and the second clamping jaw 332 have identical structures, specifically, the first clamping jaw 331 and the second clamping jaw 332 each include a first clamping block 3301 and a second clamping block 3302, and the first clamping block 3301 and the second clamping block 3302 are slidably mounted on the guide sliding rail 321. The jaw assembly 33 further includes a drive assembly 34, the drive assembly 34 being disposed on the gripping frame 32 to move the first and second clamp blocks 3301, 3302 away from each other to be in an open clamp condition.
Specifically, the guide sliding rails 321 in this embodiment are multiple, and the multiple guide sliding rails 321 are arranged in parallel, so that the first clamping block 3301 and the second clamping block 3302 are stably supported, when the driving assembly 34 works, the first clamping block 3301 and the second clamping block 3302 can be driven to move along the guide sliding rails 321, so that the first clamping block 3301 and the second clamping block 3302 are far away from each other, and are in an open clamping state, so that the tray assembly 50 is conveniently clamped.
In some embodiments of the present invention, the drive assembly 34 includes an unclamping cylinder 341 and an unclamping block 342. The clamping opening cylinder 341 is mounted on the clamping frame 32, and the extending direction of the clamping opening cylinder 341 is perpendicular to the extending direction of the guide sliding rail 321; the open clamp block 342 is arranged on the piston rod of the open clamp cylinder 341, the open clamp block 342 is positioned between the first clamp block 3301 and the second clamp block 3302, a first inclined surface 3421 is arranged on one side of the open clamp block 342, which is close to the first clamp block 3301, and a second inclined surface 3422 is arranged on one side of the open clamp block 342, which is close to the second clamp block 3302. In a specific embodiment of the present invention, the distance between the first and second inclined surfaces 3421 and 3422 becomes gradually smaller in the extending direction of the piston rod.
When the opening clamp cylinder 341 drives the opening clamp block 342 to extend along the extending direction perpendicular to the guiding slide rail 321, the opening clamp block 342 moves along with the piston rod of the opening clamp cylinder 341, and along with the continuous extension of the piston rod, the first inclined surface 3421 contacts with the first clamp block 3301 and pushes the first clamp block 3301 to move along the guiding slide rail 321 in the direction away from the opening clamp cylinder 341, and at the same time, the second inclined surface 3422 contacts with the second clamp block 3302 and pushes the second clamp block 3302 to move along the guiding slide rail 321 in the direction away from the opening clamp cylinder 341. That is, through the action of the first inclined surface 3421 and the second inclined surface 3422, the first clamping block 3301 and the second clamping block 3302 can be driven to be away from each other, so that the first clamping jaw 331 and the second clamping jaw 332 are in an open clamping state, and further the tray assembly 50 positioned in the through hole 325 can be clamped, so that the structure is compact, stable and reliable.
Further, the first clamp block 3301 in the present embodiment is provided with a first cam follower 3303, and the first clamp block 3301 is in contact with the first inclined surface 3421 through the first cam follower 3303; the second clamp block 3302 is provided with a second cam follower 3304, and the second clamp block 3302 is in contact with the second inclined surface 3422 through the second cam follower 3304. Friction and noise during the opening of the first and second jaws 331 and 332 can be reduced by the first and second cam followers 3303 and 3304 contacting the first and second inclined surfaces 3421 and 3422, respectively.
In some embodiments of the present invention, the tray turnover mechanism 30 further includes a stopper 322, a stopper screw 323, and an elastic member (not shown in the drawings).
The limiting block 322 is arranged on the clamping frame 32 and is positioned between the first clamping block 3301 and the second clamping block 3302; the limit screw 323 is arranged on the limit block 322; the elastic members are disposed between the first and second clamping blocks 3301 and 3302, specifically, one elastic member is connected between the clamping frame 32 and the first clamping block 3301, and the other elastic member is connected between the clamping frame 32 and the second clamping block 3302.
The elastic element in this embodiment may be a spring, and one end of the spring is fixed to the gripping frame 32, specifically may be fixed to the stopper 322, and the other end of the spring is fixed to the first clamping block 3301 or the second clamping block 3302.
That is, since the stopper 322 in the present embodiment is provided with the stopper screw 323 and the elastic member, the spacing between the first and second clamp blocks 3301 and 3302 can be adjusted by the action of the stopper screw 323 and the elastic member, and at the same time, the first and second clamp blocks 3301 and 3302 can be pulled by the action of the elastic member. When the driving assembly 34 drives the opening clamp block 342 to move to the initial position, the elastic element can drive the first clamp block 3301 and the second clamp block 3302 to approach each other, so that the tray assembly 50 can be clamped, and the structure is simple and convenient to realize.
Further, a detecting element (not shown in the figure) for checking the type of the tray assembly 50 is provided on the tray turnover mechanism 30, specifically, the detecting element is a photoelectric sensor provided on the tray turnover mechanism 30, and by the action of the photoelectric sensor, the existence of the tray assembly 50 on the tray turnover mechanism 30 can be judged, different products are provided with different checking tray assemblies 50, and the type of the input tray assembly 50 is judged by different sensing distances s, so that the product type is judged.
Referring to fig. 13, the appearance inspection mechanism 20 in the present embodiment includes a bracket 21, an X-axis cylinder 22, a mount 23, a Z-axis cylinder 24, and an appearance inspection assembly 25.
Wherein, the bracket 21 is arranged on the stand 10 and is erected above the tray bearing mechanism 40; the X-axis electric cylinder 22 is arranged on the bracket 21; the mounting seat 23 is arranged on the X-axis electric cylinder 22; the Z-axis electric cylinder 24 is arranged on the mounting seat 23 and is vertical to the X-axis electric cylinder 22; the appearance inspection assembly 25 is mounted to the Y-axis cylinder 41 by the mounting assembly 26 for inspecting the object to be inspected on the tray assembly 50.
When the tray carrying mechanism 40 moves below the bracket 21, the X-axis cylinder 22 and the Z-axis cylinder 24 are controlled to move, so that the appearance inspection assembly 25 aligns with the objects in the tray assembly 50, and the objects in the tray assembly 50 can be inspected one by one.
Further, the appearance inspection assembly 25 includes at least one inspection camera 251, the photographing lens of the inspection camera 251 is disposed towards the tray carrying mechanism 40, the inspection camera 251 is utilized to photograph the object in the tray assembly 50, and then the photographed picture is uploaded to the controller of the appearance inspection device and compared with the picture stored in the controller in advance, so as to determine whether the appearance of the photographed object is qualified, and the method is simple and quick. Illustratively, the inspection camera 251 in this embodiment may be set to one or two or more, and the inspection camera 251 is set to two or more, so that a plurality of objects to be inspected can be photographed at the same time, and the photographing angles are more various and comprehensive, so that the inspection efficiency and the inspection accuracy of the appearance inspection device in this embodiment can be improved.
Alternatively, the mounting assembly 26 of the present embodiment may be a structure capable of fixing the appearance inspection assembly 25 to the Z-axis cylinder 24 by a mounting plate, a positioning block, a positioning screw, or the like.
Further, the illumination component 27 is disposed on the mounting component 26 in the present embodiment, and the illumination component 27 can improve the brightness of the environment where the tray component 50 is located, so as to accurately inspect the object on the tray component 50.
Alternatively, the illumination member 27 in the present embodiment may be provided as a low-power illumination member such as an LED lamp, an EEL or the like, a DFB lamp or the like, and may be an illumination member such as an incandescent lamp or the like.
In some embodiments of the present invention, the visual inspection apparatus further includes a marking assembly 28, the marking assembly 28 being mounted to the mounting assembly 26 for marking reject objects on the tray assembly 50. The marking assembly 28 marks the unqualified objects on the tray assembly 50, so that the unqualified objects on the tray assembly 50 can be conveniently selected in the subsequent process, and the production and assembly efficiency of electronic products and the like can be accelerated.
Specifically, the marking assembly 28 includes a marking cylinder 281, a marking pen buffer 282, and a marking pen 283.
Wherein, the expansion and contraction direction of the marking cylinder 281 is consistent with the expansion and contraction direction of the Z-axis electric cylinder 24, and the marking cylinder 281 is arranged on the mounting component 26; the marker buffer 282 is mounted to the marker cylinder 281; the marker 283 is detachably mounted to the marker buffer 282.
When the appearance inspection assembly 25 inspects that the appearance of the currently photographed object is not qualified, the marking cylinder 281 is controlled to move downwards by the action of the controller of the appearance inspection press device, the correspondingly unqualified object is marked by the marking pen 283, the marking pen 283 is installed on the marking cylinder 281 through the marking pen buffer part 282, and the phenomenon that the marking cylinder 281 is broken or bent due to excessive force when being marked downwards is avoided. Illustratively, the marker buffer 282 in the present embodiment may be a structure of a connection block, a silicone block, a rubber block, or a spring member having a certain elasticity.
Further, the marker 283 includes a main body and a cap, and the marker assembly 28 further includes a marker detection sensor (not shown) provided to the main body for detecting whether the cap is provided to the main body, the marker sensor being capable of transmitting a signal of its inspection to a controller of the visual inspection apparatus, so as to facilitate improvement of control accuracy of the visual inspection apparatus. Alternatively, the marker sensor may be a distance sensor, an infrared sensor, or the like. The stand 21 is provided with a placement position 211 for placing the marker 283, and when the device is in a standby state, the marker 283 moves to the placement position 211 to cover the pen point, so that the ink in the marker 283 is prevented from volatilizing.
Referring to fig. 14, in some embodiments of the invention, the pallet carrying mechanism 40 further includes a Y-axis cylinder 41, a linear guide 42, a mounting plate 43, and an inspection station 44.
Wherein the Y-axis electric cylinder 41 is mounted on the stand 10; a linear guide 42 is provided on the stand 10 in parallel with the Y-axis cylinder 41, the linear guide 42 extending to the bottoms of the appearance inspection mechanism 20 and the tray turnover mechanism 30; the mounting plate 43 is arranged between the Y-axis electric cylinder 41 and the linear guide rail 42 and slides along the linear guide rail 42 under the drive of the Y-axis electric cylinder 41; the inspection table 44 is mounted on the mounting plate 43 via a guide shaft 45 so as to be movable up and down.
In actual operation, the tray assembly 50 is placed on the inspection table 44, specifically, may be placed on the inspection table 44 manually, or may be moved onto the inspection table 44 by a loading and unloading mechanism or a manipulator. Meanwhile, since the linear guide rail 42 extends to the bottoms of the appearance inspection mechanism 20 and the tray overturning mechanism 30, when the Y-axis electric cylinder 41 works, the tray assembly 50 can be driven to move between the appearance inspection mechanism 20 and the tray overturning mechanism 30, when the tray assembly 50 moves to the bottom of the appearance inspection mechanism 20, the appearance inspection mechanism 20 can inspect the appearance of an object on the tray assembly 50, when the tray assembly 50 moves to the bottom of the tray overturning mechanism 30, the inspection table 44 rises, the tray assembly 50 can be moved into the through hole 325 in the clamping frame 32, at the moment, the tray assembly 50 can be clamped by the action of the clamping jaw assembly 33, and then the clamping frame 32 is driven to rotate by the driving piece 311, so that the tray assembly 50 can be overturned simply and quickly.
In order to drive the inspection bench 44 to lift, the appearance inspection device in this embodiment further includes a lifting cylinder 60, where the lifting cylinder 60 is mounted on the stand 10 and located at the bottom of the tray turnover mechanism 30, and a yielding through hole (not shown in the drawing) is disposed on the mounting plate 43, and the lifting cylinder 60 passes through the yielding through hole to lift the inspection bench 44, so that the structure is simple and easy to implement.
Further, the visual inspection apparatus in the present embodiment further includes a limit module (not shown in the drawings) mounted to the mounting plate 43 to limit the elevation height of the limit check table 44, so as to improve the structural stability of the visual inspection apparatus in the present embodiment. Illustratively, the limit module in this embodiment includes a limit plate, a proximity switch, and the like.
Optionally, the inspection bench 44 in this embodiment is a platform, on which an inspection component, such as a sensor, may be disposed to inspect the tray assembly 50, so as to inspect whether the inspection bench 44 has the tray assembly 50 placed thereon, so as to facilitate automatic control of the appearance inspection device.
Illustratively, the plurality of guide shafts 45 in the present embodiment supports and elevates the inspection table 44 by using the plurality of guide shafts 45, and the structure is more stable and reliable.
Referring again to fig. 1 to 14, the detailed operation state of the appearance inspection device of the present invention will be specifically described according to the above-described configuration as follows:
The tray assembly 50 is first placed on the inspection table 44 of the tray carrying mechanism 40, and may be placed on the tray carrying mechanism 40 by manual, loading and unloading mechanisms or mechanical hands. Thereafter, the Y-axis cylinder 41 is operated to drive the mounting plate 43 and the inspection stage 44 thereon to move along the linear guide rail 42, and when the mounting plate 43 is moved to the bottom of the appearance inspection mechanism 20, the tray (the first tray 51 or the second tray 52) on the upper surface of the tray assembly 50 is removed, and then the object on the tray assembly 50 is photographed by the inspection camera 251. During shooting, the inspection camera 251 can be aligned with the object on the tray assembly 50 by adjusting the displacements of the X-axis cylinder 22, the Y-axis cylinder 41 and the Z-axis cylinder 24, so that the front surface of the object on the tray assembly 50 can be inspected one by one. When there are undesirable objects in the objects on the tray assembly 50, the failed objects may be marked with a marker 283. After the inspection, the first tray 51 and the second tray 52 are covered, the mounting plate 43 and the tray assembly 50 thereon are moved to the bottom of the tray turning mechanism 30 again by the Y-axis cylinder 41, at this time, the inspection table 44 and the tray assembly 50 thereon are lifted up into the through hole 325 on the gripping frame 32 by the lift cylinder 60, then the tray assembly 50 is gripped by the gripping jaw assembly 33, the lift cylinder 60 is lowered, the gripping frame 32 is turned 180 ° by driving the gripping frame 32 by the driving member 311, the inspection table 44 is lifted up again by the lift cylinder 60, the gripping jaw assembly 33 is released, the tray assembly 50 is placed on the inspection table 44, and the lift cylinder 60 is lowered. Finally, the inspection table 44 and the upper tray assembly 50 are driven to move to the bottom of the appearance inspection mechanism 20 by the Y-axis electric cylinder 41, the tray (the first tray 51 or the second tray 52) on the upper surface of the tray assembly 50 is taken down, and the appearance inspection is performed on the reverse surface of the object on the tray assembly 50 by the inspection camera 251.
In summary, the appearance inspection device of the present invention is provided with the tray overturning mechanism 30, and by the action of the tray overturning mechanism 30, the tray assembly 50 carrying the object to be inspected can be overturned, so that the appearance inspection can be performed on the front and the back of the object to be inspected, the inspection efficiency of the appearance inspection device can be improved, and the product quality risk can be reduced. In the actual design process, by arranging the tray assemblies 50 of different types, different types of products can be borne, and further appearance inspection can be performed on the different types of products, so that the diversity of product inspection of the appearance inspection equipment can be improved, and the misjudgment risk of the appearance of the products is reduced.
The above has described in detail the appearance inspection apparatus disclosed in the embodiments of the present invention, and specific examples have been applied herein to illustrate the principles and embodiments of the present invention, and the above description of the embodiments is only for helping to understand the appearance inspection apparatus and core ideas of the present invention; meanwhile, as those skilled in the art will vary in the specific embodiments and application scope according to the idea of the present invention, the present disclosure should not be construed as limiting the present invention in summary.
Claims (17)
1. An appearance inspection apparatus, comprising:
A stand;
The tray assembly comprises a first tray and a second tray which are arranged in a stacked mode, and a plurality of bearing spaces for bearing objects to be detected are formed between the first tray and the second tray in a surrounding mode;
The appearance checking mechanism is arranged on the stand and used for checking the appearance of the object to be checked;
the tray overturning mechanism is arranged on the stand and used for overturning the tray assembly bearing the object to be detected, and comprises a positioning frame, a clamping frame and a clamping jaw assembly; and
The tray bearing mechanism comprises a Y-axis electric cylinder, a linear guide rail, a mounting plate and an inspection table, wherein the Y-axis electric cylinder is mounted on the stand, the linear guide rail is arranged on the stand and is parallel to the Y-axis electric cylinder, the linear guide rail extends to the bottoms of the appearance inspection mechanism and the tray overturning mechanism, the mounting plate is arranged between the Y-axis electric cylinder and the linear guide rail and slides along the linear guide rail under the drive of the Y-axis electric cylinder, the inspection table is mounted on the mounting plate in a lifting manner through a guide shaft, and the tray assembly is placed on the inspection table;
The positioning frame is arranged on the stand and erects the tray bearing mechanism, the clamping frame is rotatably arranged on the positioning frame, the clamping jaw assembly is arranged on the clamping frame, a through hole is formed in the clamping frame, the clamping jaw assembly is arranged on the clamping frame and used for clamping the tray assembly in the through hole, the clamping jaw assembly comprises a first clamping jaw and a second clamping jaw, the first clamping jaw and the second clamping jaw are both arranged on the clamping frame, the first clamping jaw is used for clamping the first tray, and the second clamping jaw is used for clamping the second tray;
The clamping frame comprises a first clamping plate and a second clamping plate which are stacked and arranged at intervals, the opposite two ends of the first clamping plate and the second clamping plate are connected and fixed through connecting blocks, and the through holes penetrate through the first clamping plate and the second clamping plate;
the first clamping jaw is slidably arranged on one side of the first clamping plate, which is close to the second clamping plate;
The second clamping jaw is slidably arranged on one side of the second clamping plate, which is close to the first clamping plate;
the connecting block is provided with a rotating shaft, and the rotating shaft is arranged on the positioning frame through a bearing seat;
The tray overturning mechanism further comprises a driving piece, the driving piece is installed on the locating rack, and the driving piece is connected with the rotating shaft through a coupler to drive the clamping rack to overturn.
2. The visual inspection apparatus of claim 1, wherein said gripping frame is fixedly provided with a guide rail extending in a first direction of said gripping frame, said first jaw and said second jaw being structurally identical, said first jaw and said second jaw each comprising a first clamp block and a second clamp block, said first clamp block and said second clamp block being slidably mounted to said guide rail;
the clamping jaw assembly further comprises a driving assembly, and the driving assembly is arranged on the clamping frame so that the first clamping block and the second clamping block are far away from each other to be in an open clamping state.
3. The visual inspection apparatus of claim 2, wherein said drive assembly comprises:
The clamping opening cylinder is arranged on the clamping frame, and the stretching direction of the clamping opening cylinder is perpendicular to the extending direction of the guide sliding rail;
The clamping opening block is arranged on a piston rod of the clamping opening cylinder, the clamping opening block is positioned between the first clamping block and the second clamping block, a first inclined surface is arranged on one side, close to the first clamping block, of the clamping opening block, a second inclined surface is arranged on one side, close to the second clamping block, of the clamping opening block, and the distance between the first inclined surface and the second inclined surface is gradually reduced in the extending direction of the piston rod;
When the piston rod is driven to move along the extending direction perpendicular to the guide sliding rail by the clamping opening cylinder, the clamping opening blocks synchronously move, and along with the continuous extension of the piston rod, the first inclined surface pushes the first clamping blocks to move along the guide sliding rail in the direction away from the clamping opening cylinder, and the second inclined surface pushes the second clamping blocks to move along the guide sliding rail in the direction away from the clamping opening cylinder.
4. The visual inspection apparatus of claim 3, wherein said first clamp block is provided with a first cam follower, said first clamp block being in contact with said first ramp surface via said first cam follower;
And a second cam follower is arranged on the second clamping block, and the second clamping block is contacted with the second inclined plane through the second cam follower.
5. The visual inspection apparatus of claim 3, wherein said tray flipping mechanism further comprises:
the limiting block is arranged on the clamping frame and is positioned between the first clamping block and the second clamping block;
the limiting screw is arranged on the limiting block; and
And the elastic element is positioned between the first clamping block and the second clamping block, one elastic element is connected between the clamping frame and the first clamping block, and the other elastic element is connected between the clamping frame and the second clamping block.
6. The visual inspection apparatus according to claim 1, wherein the flip angle of the gripping rack is not less than 180 °.
7. The visual inspection apparatus according to claim 1, wherein said visual inspection mechanism comprises:
the bracket is arranged on the stand and is arranged above the tray bearing mechanism;
the X-axis electric cylinder is arranged on the bracket;
the mounting seat is arranged on the X-axis electric cylinder;
the Z-axis electric cylinder is arranged on the mounting seat and is vertical to the X-axis electric cylinder; and
The appearance inspection assembly is installed on the Z-axis electric cylinder through the installation assembly and used for inspecting objects to be inspected on the tray assembly.
8. The visual inspection apparatus of claim 7, wherein said visual inspection assembly includes at least one inspection camera having a photographing lens disposed toward said tray carrying mechanism.
9. The visual inspection apparatus of claim 7, wherein said mounting assembly has an illumination member disposed thereon.
10. The visual inspection apparatus of claim 7, further comprising a marking assembly mounted to said mounting assembly for marking rejected objects on said tray assembly.
11. The visual inspection apparatus of claim 10, wherein said marking assembly comprises:
The expansion direction of the marking air cylinder is consistent with the expansion direction of the Z-axis electric cylinder, and the marking air cylinder is arranged on the mounting assembly;
the marker pen buffer part is arranged on the marker cylinder; and
And the marking pen is detachably arranged on the marking pen buffer part.
12. The visual inspection apparatus of claim 11, wherein said marker pen includes a body and a pen cap, said marker assembly further including a marker pen detection sensor disposed on said body for detecting whether said pen cap is capped on said body.
13. The visual inspection apparatus according to claim 11, wherein a placement position for placing said marker pen is provided on said stand.
14. The visual inspection apparatus of claim 1, wherein the mounting plate is provided with a relief through hole, the visual inspection apparatus further comprising:
the jacking air cylinder is arranged on the stand and located at the bottom of the tray overturning mechanism, and penetrates through the abdication through hole to jack up the inspection table.
15. The visual inspection apparatus according to any one of claims 1 to 14, further comprising a housing that is provided over the stand and surrounds the outer circumferences of the visual inspection mechanism, the tray turning mechanism, and the tray carrying mechanism, and a shock pad is provided between the housing and the stand.
16. The visual inspection apparatus of claim 15, wherein said cushion is provided with a rigid pad, said housing being pressed against said cushion by said rigid pad.
17. The visual inspection apparatus as set forth in any one of claims 1 to 14, wherein said tray assembly comprises a plurality of types, and said tray turning mechanism is provided with a detection element for checking the type of said tray assembly.
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| CN202110242892.6A CN113049596B (en) | 2021-03-05 | 2021-03-05 | Appearance inspection apparatus |
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| CN202110242892.6A CN113049596B (en) | 2021-03-05 | 2021-03-05 | Appearance inspection apparatus |
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| CN113740343A (en) * | 2021-07-23 | 2021-12-03 | 中国电子科技集团公司第二十九研究所 | Device and method for automatically checking appearance of electronic system extension product |
| CN114859067A (en) * | 2022-04-26 | 2022-08-05 | 厦门微亚智能科技有限公司 | Membrane defect detection equipment |
| CN117225745B (en) * | 2023-11-13 | 2024-01-26 | 凯多智能科技(上海)有限公司 | Flaw detection equipment for lithium battery tray and working method of flaw detection equipment |
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Effective date of registration: 20241030 Address after: 519000 Room 105-74257, No. 6 Baohua Road, Hengqin New District, Zhuhai City, Guangdong Province (centralized office area) Patentee after: Zhuhai Delta Technology Co.,Ltd. Country or region after: China Address before: 510660 No.7, Shenzhou Road, Science City, high tech Industrial Development Zone, Guangzhou City, Guangdong Province Patentee before: Guangzhou delta Imaging Technology Co.,Ltd. Country or region before: China |