CN112903695A - Visual inspection device - Google Patents

Visual inspection device Download PDF

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Publication number
CN112903695A
CN112903695A CN202110065961.0A CN202110065961A CN112903695A CN 112903695 A CN112903695 A CN 112903695A CN 202110065961 A CN202110065961 A CN 202110065961A CN 112903695 A CN112903695 A CN 112903695A
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China
Prior art keywords
assembly
visual
visual detection
product
detection
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Granted
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CN202110065961.0A
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Chinese (zh)
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CN112903695B (en
Inventor
余岱璟
杨正河
西村卫
徐巍
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Huizhou Desay Automation Technology Co Ltd
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Huizhou Desay Automation Technology Co Ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N21/88Investigating the presence of flaws or contamination
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G15/00Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
    • B65G15/10Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration comprising two or more co-operating endless surfaces with parallel longitudinal axes, or a multiplicity of parallel elements, e.g. ropes defining an endless surface
    • B65G15/12Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration comprising two or more co-operating endless surfaces with parallel longitudinal axes, or a multiplicity of parallel elements, e.g. ropes defining an endless surface with two or more endless belts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/74Feeding, transfer, or discharging devices of particular kinds or types
    • B65G47/82Rotary or reciprocating members for direct action on articles or materials, e.g. pushers, rakes, shovels
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical techniques
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01Arrangements or apparatus for facilitating the optical investigation
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01Arrangements or apparatus for facilitating the optical investigation
    • G01N2021/0106General arrangement of respective parts
    • G01N2021/0112Apparatus in one mechanical, optical or electronic block

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

The invention discloses a visual detection device, which comprises an upper visual detection mechanism, a lower visual detection mechanism, a side visual detection mechanism, a transmission mechanism and a jig, wherein the upper visual detection mechanism is arranged on the upper surface of the lower visual detection mechanism; the upper visual detection mechanism and the lower visual detection mechanism are respectively arranged on a conveying path of the conveying mechanism, and the side visual detection mechanism is close to the terminal of the conveying path of the conveying mechanism; the jig is used for supporting and bearing the product, the conveying mechanism conveys the jig to support the product borne through the upper visual detection mechanism and the lower visual detection mechanism, the upper visual detection mechanism and the lower visual detection mechanism respectively carry out appearance detection on the upper surface and the lower surface of the product, and the side visual detection mechanism receives the product and carries out appearance detection on the side surface of the product. This application has realized the comprehensive detection of product outward appearance through the reasonable cooperation setting of above-mentioned visual detection mechanism, following visual detection mechanism, side visual detection mechanism and transport mechanism, and wholly sets up simple structure, and detection efficiency is high.

Description

Visual inspection device
Technical Field
The invention relates to the technical field of appearance detection, in particular to a visual detection device.
Background
Appearance inspection is required in the production of many products or workpieces to avoid appearance defects of the products or workpieces. At present, many enterprises replace manual visual inspection through visual inspection devices to improve detection efficiency. In order to ensure the comprehensiveness of the appearance detection of a product or a workpiece, the conventional visual detection device usually adopts an industrial camera to separately arrange a plurality of detection stations for respectively detecting six surfaces of the product or the workpiece, but the arrangement of the plurality of appearance detection stations is complicated, and the detection efficiency is low.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a visual detection device.
The invention discloses a visual detection device, which comprises:
the device comprises an upper visual detection mechanism, a lower visual detection mechanism, a side visual detection mechanism, a transmission mechanism and a jig; the upper visual detection mechanism and the lower visual detection mechanism are respectively arranged on a conveying path of the conveying mechanism, and the side visual detection mechanism is close to the terminal of the conveying path of the conveying mechanism; the jig is used for supporting and bearing the product, the conveying mechanism conveys the jig to support the product borne through the upper visual detection mechanism and the lower visual detection mechanism, the upper visual detection mechanism and the lower visual detection mechanism respectively carry out appearance detection on the upper surface and the lower surface of the product, and the side visual detection mechanism receives the product and carries out appearance detection on the side surface of the product.
According to an embodiment of the present invention, the apparatus further comprises a support position visual detection mechanism; the supporting position visual detection mechanism is close to the starting end of the conveying path of the conveying mechanism; before the jig supports and bears the product, the supporting position visual detection mechanism carries out appearance detection on the part of the product to be supported by the jig.
According to one embodiment of the invention, the jig comprises a plurality of through holes for supporting the material level and a bearing plate; the plurality of through holes support the material level to be distributed on the bearing plate; a plurality of products bear respectively in a plurality of through-hole support material level.
According to an embodiment of the present invention, the through-hole supporting level includes an upper through-hole and a lower through-hole which are communicated with each other; the upper through hole and the lower through hole are sequentially arranged along the thickness direction of the bearing plate; the diameter of the upper through hole is larger than that of the lower through hole.
According to an embodiment of the present invention, the upper visual inspection mechanism includes an upper visual inspection assembly and an upper light source assembly; the lower visual detection mechanism comprises a lower visual detection assembly and a lower light source assembly; the detection end of the upper visual detection assembly and the detection end of the lower visual detection assembly respectively face the upper surface and the lower surface of the product supported by the jig; the upper visual detection assembly is used for detecting the upper appearance of the product, and the upper light source assembly is used for providing a light source required by the upper visual detection assembly for detecting the upper appearance of the product; the lower visual detection assembly is used for detecting the lower appearance of the product, and the lower light source assembly is used for providing a light source required by the lower visual detection assembly for detecting the lower appearance of the product.
According to an embodiment of the present invention, the upper visual inspection mechanism further comprises an upper focusing assembly; the lower visual detection mechanism also comprises a lower focusing assembly; the upper focusing assembly and the lower focusing assembly are respectively connected with the upper visual detection assembly and the lower visual detection assembly; the upper focusing assembly is used for adjusting the distance between the upper visual detection assembly and the product, and the lower focusing assembly is used for adjusting the distance between the lower visual detection assembly and the product.
According to an embodiment of the present invention, the upper visual inspection mechanism further comprises an upper inspection backlight assembly; the lower visual inspection mechanism further comprises a lower inspection backlight assembly; the upper surface detection backlight assembly is positioned on one side of the jig, which is far away from the upper surface visual detection assembly, and is used for providing a backlight source for the upper surface visual detection assembly to carry out product upper surface appearance detection; the lower detection backlight assembly is positioned on one side, away from the lower visual detection assembly, of the jig, and is used for providing a backlight source for the lower visual detection assembly to perform appearance detection below a product.
According to one embodiment of the invention, the side visual detection mechanism comprises two side visual detection assemblies and a side detection transfer assembly which are arranged at intervals, wherein a side detection channel is formed between the two side visual detection assemblies; the side detection transfer assembly receives the product and transfers the product through a side detection channel between the two side visual detection assemblies.
According to one embodiment of the present invention, the side visual inspection assembly includes a side visual inspection unit and a side visual inspection light source unit disposed on one side of the side visual inspection unit; the side visual detection parts of the two side visual detection assemblies are arranged oppositely; the side surface detection transfer component drives the product to pass between the two side surface visual detection pieces which are oppositely arranged, and drives the product to rotate.
According to an embodiment of the present invention, the supporting position visual inspection mechanism includes a supporting position visual inspection assembly and a supporting position visual inspection light source assembly; the support position visual detection assembly and the support position visual detection light source assembly are arranged adjacently.
The beneficial effect of this application lies in: through the reasonable cooperation setting of above-mentioned visual detection mechanism, following visual detection mechanism, side visual detection mechanism and transport mechanism, realized the comprehensive detection of product outward appearance, and whole set up simple structure, detection efficiency is high.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic structural diagram of a visual inspection apparatus according to the present embodiment;
FIG. 2 is an enlarged view of the portion A of FIG. 1 in the present embodiment;
fig. 3 is a schematic structural diagram of the jig of the present embodiment.
Detailed Description
In the following description, for purposes of explanation, numerous implementation details are set forth in order to provide a thorough understanding of the various embodiments of the present invention. It should be understood, however, that these implementation details are not to be interpreted as limiting the invention. That is, in some embodiments of the invention, such implementation details are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.
It should be noted that all the directional indications such as up, down, left, right, front and rear … … in the embodiment of the present invention are only used to explain the relative positional relationship, movement, etc. between the components in a specific posture as shown in the drawings, and if the specific posture is changed, the directional indication is changed accordingly.
In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
For further understanding of the contents, features and effects of the present invention, the following embodiments are enumerated in conjunction with the accompanying drawings, and the following detailed description is given:
referring to fig. 1, fig. 1 is a schematic structural diagram of the visual inspection apparatus in this embodiment. The visual inspection device in this embodiment includes a frame 1, an upper visual inspection mechanism 2, a lower visual inspection mechanism 3, a side visual inspection mechanism 4, a conveying mechanism 5, and a jig 6. The upper visual detection mechanism 2 and the lower visual detection mechanism 3 are arranged in the frame 1 side by side, and the upper visual detection mechanism 2 and the lower visual detection mechanism 3 are respectively arranged on a conveying path of the conveying mechanism 5. The side visual inspection mechanism 4 is located at one side of the frame 1, and the side visual inspection mechanism 4 is close to the end of the conveying path of the conveying mechanism 5. The jig 6 is arranged on the conveying mechanism 5, and the jig 6 is used for supporting and bearing the product. Conveying mechanism 5 conveys the product that tool 6 supported and bore through visual detection mechanism 2 above and visual detection mechanism 3 below, and visual detection mechanism 2 above and visual detection mechanism 3 below carry out outward appearance to the higher authority of product respectively with carry out the back below with, and side visual detection mechanism 4 receives the product to carry out outward appearance to the side of product and detect.
Through the reasonable cooperation setting of above visual detection mechanism 2, following visual detection mechanism 3, side visual detection mechanism 4 and transport mechanism 5, realized the comprehensive detection of product outward appearance, and whole set up simple structure, detection efficiency is high. The product in the embodiment is a lens, the upper surface and the lower surface of the lens are divided into two end surfaces of the lens, and the side surfaces of the lens are circular side surfaces of the lens.
Preferably, the visual inspection apparatus in this embodiment further includes a support position visual inspection mechanism 7. The support position visual detection mechanism 7 is close to the beginning of the conveying path of the conveying mechanism 5. Before the jig 6 supports and bears the product, the supporting position visual detection mechanism 7 carries out appearance detection on the part of the product to be supported by the jig 6. It can be understood that, when the upper visual detection mechanism 2 and the lower visual detection mechanism 3 detect the product supported and carried by the jig 6, the part of the product supported and carried by the jig 6 cannot be directly detected by vision. The position that waits to support to bear the weight of to the product carries out visual detection through the setting of supporting a visual detection mechanism 7 to avoid the omission that product outward appearance detected, guaranteed the comprehensiveness that outward appearance detected.
The upper visual inspection mechanism 2 and the lower visual inspection mechanism 3 in this embodiment have a space therebetween, and the conveyance mechanism 5 passes through the space between the upper visual inspection mechanism 2 and the lower visual inspection mechanism 3. The supporting position visual detection mechanism 7 and the side visual detection mechanism 4 are respectively positioned at two opposite sides of the conveying mechanism 5, wherein the supporting position visual detection mechanism 7 is close to the conveying starting end of the conveying mechanism 5, and the side visual detection mechanism 4 is positioned at the conveying tail end of the conveying mechanism 5. The layout of the upper visual detection mechanism 2, the lower visual detection mechanism 3, the side visual detection mechanism 4, the conveying mechanism 5 and the supporting position visual detection mechanism 7 is smooth, the detection speed of the appearance of each part of the product is high, the layout of each mechanism is compact, and the occupied space is small.
Referring back to fig. 1, further, the frame 1 includes two support frames 11 and a support plate 12. Two support frames 11 set up along vertical direction, and the both ends of backup pad 12 set firmly respectively in the upper end of two support frames 11, and backup pad 12 perpendicular to horizontal plane. The two support frames 11 are matched with the support plate 12 to form a gantry structure. The upper visual inspection mechanism 2 and the lower visual inspection mechanism 3 are respectively installed on the opposite sides of the support plate 12. The above visual detection mechanisms 2 in the embodiment are two arranged side by side, and the below visual detection mechanisms 3 are two arranged side by side, so that the double-station structure of the appearance detection on the product and the double-station structure of the appearance detection below the product are formed, the range of a disposable detection area is improved, and the detection efficiency is improved. Preferably, the support plate 12 is provided with mounting plates 13 on opposite sides thereof, respectively. A mounting plate 13 is attached to the support plate 12 at one end and extends above the support plate 12 at the other end, the mounting plate 13 being used for mounting the visual inspection mechanism 2 thereon. A further mounting plate 13 is provided suspended below the support plate 12, which mounting plate 13 is used for mounting the underlying visual inspection mechanism 3.
Referring back to fig. 1, further, the upper visual inspection mechanism 2 includes an upper visual inspection assembly 21 and an upper light source assembly 22. The lower visual inspection mechanism 3 includes a lower visual inspection assembly (not shown) and a lower light source assembly (not shown). The detection end of the upper visual detection assembly 21 and the detection end of the lower visual detection assembly respectively face the upper surface and the lower surface of the product supported by the jig 6, and the light source end of the upper light source assembly 22 and the light source end of the lower light source assembly respectively face the upper surface and the lower surface of the product supported by the jig 6. The upper visual inspection assembly 21 is used for detecting the upper appearance of the product, and the upper light source assembly 22 is used for providing the light source required by the upper visual inspection assembly 21 for detecting the upper appearance of the product. The lower visual detection assembly is used for detecting the lower appearance of the product, and the lower light source assembly is used for providing a light source required by the lower visual detection assembly for detecting the lower appearance of the product.
In the conveying process of the jig 6 by the conveying mechanism 5, the upper visual detection assembly 21 and the lower visual detection assembly respectively perform appearance detection on the upper surface and the lower surface of the product from the upper direction and the lower direction, the upper surface and the lower surface of the product can be smoothly finished, the detection speed is high, and the structure is simple. The structures of the lower visual detection assembly and the lower light source assembly in this embodiment are the same as the structures of the upper visual detection assembly 21 and the upper light source assembly 22, and are only different in the position of the support plate 12 and the direction opposite to the detection; wherein, the upper visual detection component 21 and the upper light source component 22 are arranged on the mounting plate 13 at the upper position of the support plate 12, and the upper visual detection component 21 is just opposite to the lower part for detection; the lower visual detection assembly and the lower light source assembly are mounted on the mounting plate 13 below the support plate 12, and the lower visual detection assembly detects the upper side. The interval has between visual inspection subassembly 21 and the visual inspection subassembly below above, and transport mechanism 5 passes from the interval between visual inspection subassembly 21 and the visual inspection subassembly below above, and tool 6 bears the product and passes between visual inspection subassembly 21 and the visual inspection subassembly below above the process, and visual inspection subassembly 21 and the visual inspection subassembly below are above the product and are detected below the product respectively. The above visual inspection unit 21 and the above light source unit 22 will be described as examples.
Referring to fig. 2, fig. 2 is an enlarged view of a portion a of fig. 1 in the present embodiment. Further, the upper visual inspection unit 21 is a CCD camera, which can be directly mounted on the mounting plate 13 through a bracket. The upper light source module 22 includes a first annular light source element 221. The first annular light source member 221 includes a first adjustment mounting frame 2211, a suspension connection frame 2212, a first annular frame 2213 and a first annular light source 2214. The first adjustment mounting block 2211 is in the shape of an L-shaped plate, one end of which is movably connected to the mounting plate 13, and the other end of which has an annular opening 22111. Specifically, first regulation hole 22112 has been seted up along direction of height to the one end of first regulation mounting bracket 2211, and on the screw passed first regulation hole 22112 after-fixing in mounting panel 13, after unscrewing the screw, can remove first regulation mounting bracket 2211 along direction of height to realize the regulation of first regulation mounting bracket 2211 in direction of height. The suspension connection frame 2212 in this embodiment includes three connection rods, the three connection rods are sequentially arranged at equal intervals along the circumferential direction, one end of each connection rod 2212 is connected to the annular opening 22111, and the other end thereof is connected to the first annular frame 2213, so that the first annular frame 2213 is suspended. The first annular light source 2214 is correspondingly arranged on the lower surface of the first annular frame 2213. The upper visual inspection assembly 21 is located in the annular opening 22111, and the inspection end of the upper visual inspection assembly is opposite to the product in the fixture 6 through the hollow positions of the first annular frame 2213 and the first annular light source 2214. The central axes of the upper visual inspection assembly 21, the annular mouth 22111, the first annular shelf 2213, and the first annular light source 2214 overlap in this embodiment. Thus, the first annular light source 2214 is arranged around the circumference of the detection end of the upper visual detection assembly 21, so that uniform and comprehensive light can be provided to guarantee shooting of the upper visual detection assembly 21. And the first adjusting mounting frame 2211 is adjustable in the height direction, so that the first annular light source 2214 is adjustable in the height direction, and the upper visual detection assembly 21 with different specifications is adapted to provide light sources. Preferably, the upper light source assembly 22 further includes a second annular light source element 222. The second annular light source 222 includes a second adjustment mounting frame 2221 and a second annular light source 2222. Wherein, the structure that the mounting bracket 2221 was adjusted to the second is similar with the structure that the mounting bracket 2211 was adjusted to the first, the one end swing joint of mounting bracket 2221 is adjusted on mounting panel 13 to the second, and the second is adjusted the mounting bracket 2221 and is adjustable in the direction of height, the annular mouth that the second was adjusted the mounting bracket 2221 other end is located the below of first annular light source 2214, and the cover is located outside first annular light source 2214, second annular light source 2222 is installed in the second lower surface of adjusting the annular mouth of the mounting bracket 2221 other end, and the cover is located outside first annular light source 2214. The central axis of the second annular light source 2222 overlaps the central axis of the first annular light source 2214. The first annular light source 2214 and the second annular light source 2222 are matched to form inner and outer annular lights, so that the brightness of the shooting area of the upper visual detection assembly 21 is ensured, the shooting quality is further improved, and the appearance detection effect is ensured. Preferably, the mounting plate 13 is provided with a scale 14 along its height direction. The arrangement of the scale 14 is used as a reference for height adjustment of the first and second adjustment mounting brackets 2211 and 2221, so as to facilitate the accuracy of the height adjustment of the first and second adjustment mounting brackets 2211 and 2221.
Referring back to fig. 1, further, the upper visual inspection mechanism 2 further includes an upper focusing assembly 23. The lower visual inspection mechanism 3 further includes a lower focus adjustment assembly 31. The upper focusing assembly 23 and the lower focusing assembly 31 are respectively connected with the upper visual detection assembly 21 and the lower visual detection assembly; the upper focusing assembly 23 is used to adjust the distance of the upper visual inspection assembly 21 relative to the product, and the lower focusing assembly 31 is used to adjust the distance of the lower visual inspection assembly relative to the product. Realize above visual detection subassembly 21 and visual detection subassembly below respectively for the distance adjustment of product through focusing subassembly 23 and focusing subassembly 31 down, thereby visual detection subassembly 21 and visual detection subassembly focusing processing below above realizing, visual detection subassembly 21 shoots the quality below and visual detection subassembly above further promoting, guarantees the outward appearance detection effect. The structure and operation principle of the upper focusing assembly 23 in this embodiment are the same as those of the lower focusing assembly 31, and the focusing assembly 23 is now described as an example. Specifically, the upper focus assembly 23 includes an upper focus driving member 231 and an upper focus member 232. The upper focusing driving member 231 is arranged on the mounting plate 13, the upper focusing member 232 is connected with the driving end of the upper focusing driving member 231, the upper visual detection assembly 21 is mounted on the upper focusing member 232, the upper focusing driving member 231 drives the upper focusing member 232 to linearly move along the height direction, the upper visual detection assembly 21 is driven to linearly move along the height direction, and therefore the focal length adjustment of the upper visual detection assembly 21 is achieved. The upper focusing driving member 231 in this embodiment is disposed along the height direction, and may be a linear module, or a motor, a lead screw, a nut, and a sliding table, which are not described herein again. The upper focus adjusting member 232 is a mounting block which is provided on a slide table of the upper focus adjusting driving member 231 to facilitate mounting of the upper visual inspection assembly 21.
Referring back to fig. 1, further, the upper visual inspection mechanism 2 further includes an upper inspection backlight assembly 24. The lower visual inspection mechanism 3 further includes a lower inspection backlight assembly 32. The upper surface detection backlight assembly 24 is positioned on one side of the jig 6 far away from the upper surface visual detection assembly 21, and the upper surface detection backlight assembly 24 is used for providing a backlight source for the upper surface visual detection assembly 21 to carry out product upper surface appearance detection; the lower detection backlight assembly 32 is located on one side of the fixture 6 away from the lower visual detection assembly, and the lower detection backlight assembly 32 is used for providing a backlight source for the lower visual detection assembly to perform product lower appearance detection. Through the setting of the upper detection backlight assembly 24 and the lower detection backlight assembly 32, a backlight source is provided for the upper visual detection assembly 21 and the lower visual detection assembly to shoot products, the shooting quality is further improved, and the appearance detection effect is improved. Specifically, the lower inspection backlight assemblies 32 of the upper inspection backlight assembly 24 are plate-shaped light sources, wherein the upper inspection backlight assembly 24 is parallel to the lower portion of the second annular light source 2222 and is opposite to the inspection end of the upper visual inspection assembly 21. The upper detection backlight assembly 24 has a space from the second ring-shaped light source 2222. The lower inspection backlight assembly 32 is parallel to and above the second annular light source of the lower visual inspection assembly, with a space between the lower inspection backlight assembly 32 and the second annular light source of the lower visual inspection assembly. The conveyance mechanism 5 passes through the interval between the upper detection backlight assembly 24 and the second annular light source 2222, and the interval between the lower detection backlight assembly 32 and the second annular light source of the lower visual detection assembly, in this order.
Referring to fig. 1 again, further, the side vision inspection mechanism 4 includes two side vision inspection assemblies 41 and a side inspection transfer assembly (not shown), which are disposed at intervals, and a side inspection channel is formed between the two side vision inspection assemblies 41; the side inspection transfer assembly receives the product and transfers the product through the side inspection lane between the two side vision inspection assemblies 41. The two oppositely arranged side visual inspection assemblies 41 are matched to comprehensively inspect the products passing through the side inspection channel. Preferably, the lateral visual inspection unit 41 includes a lateral visual inspection unit 411 and a lateral visual inspection light source unit 412 provided on one side of the lateral visual inspection unit 411. The side visual inspection parts 411 of the two side visual inspection units 41 are arranged oppositely, and the side visual inspection light source part 412 is used for providing a light source required for the detection of the side visual inspection parts 411. The side detection transfer assembly drives the product to pass between the two side visual detection pieces 411 which are oppositely arranged, and drives the product to rotate. The side detects transfer unit in this embodiment can adopt the cooperation of current portal frame, linear module and absorption manipulator, and it can adsorb the product and shift the product and pass through side detection channel. The end of the adsorption manipulator can be provided with a rotary cylinder, so that 360-degree rotation of the product is realized, the single side visual detection assembly 41 can detect the 360-degree side of the product, the detection results of the two side visual detection assemblies 41 are mutually verified, and the accuracy of product side detection is ensured. The number of the side visual inspection light source devices 412 in this embodiment is two, and the two side visual inspection light source devices 412 are respectively located at two opposite sides of the side visual inspection device 411. Specifically, the side vision inspection assembly 41 further includes a side inspection mounting frame 413. Side visual detection piece 411 is the CCD camera, it is located side mounting panel 4111, side mounting panel 4111 swing joint is on side detection mounting bracket 413, it is specific, side mounting panel 4111 realizes swing joint through the screw with seting up the strip through-hole on side mounting panel 4111, thereby make side visual detection piece 411 install in the position control that side detection mounting bracket 413, thereby make the relative interval between two side visual detection pieces 411 adjustable, in order to realize the focusing of side visual detection piece 411, promote to shoot quality and product side outward appearance detection effect. The side vision inspection light source part 412 is a bar light source, and is installed at the upper end of the side inspection mounting frame 413 through the side light source mounting frame 4121, so that the side vision inspection light source part 412 is respectively located at the opposite two sides of the side vision inspection part 411, and when the side vision inspection light source part 412 is all facing to the side of the product, the two side vision inspection light source parts 412 can provide sufficient light sources from the opposite two sides of the side vision inspection part 411, so as to ensure the shooting quality of the side vision inspection part 411. Preferably, the side visual detection light source part 412 is rotatably connected with the side light source mounting frame 4121, so that the angle adjustment of the side visual detection light source part 412 can be realized, the angle adjustment of the side visual detection light source part 412 facing the side of the product can be realized, the side visual detection light source part 412 can be adjusted according to the actual lighting requirement, and the lighting effect can be ensured.
Referring back to fig. 1, further, the transfer mechanism 5 includes a transfer driving assembly 51 and two transfer stands 52. The two transfer stage 52 are respectively located at the interval between the upper sensing backlight assembly 24 and the second ring-shaped light source 2222, and the interval between the lower sensing backlight assembly 32 and the second ring-shaped light source of the lower visual sensing assembly. The conveying frame 52 can move in a plane, in a specific application, the conveying frame 52 adopts an existing XY platform, the jig 6 can be loaded on the conveying frame 52, and the upper surface and the lower surface of the jig 6 are leaked from the conveying frame 52. The transmission driving assembly 51 is a linear module and a shift lever, and is capable of shifting the jigs 6 on the transmission stand 52, so that the jigs 6 sequentially move to the transmission stand 52 between the upper detection backlight assembly 24 and the second annular light source 2222, and the transmission stand 52 between the lower detection backlight assembly 32 and the second annular light source of the lower visual detection assembly. The conveying stand 52 enables the jig 6 to move in a plane, thereby enabling the product to move in a plane to facilitate adjustment of the position of the product. In another embodiment, the conveying mechanism 5 may also adopt two belt conveyors arranged side by side to convey the conveying stand. Or a belt type conveyor belt is adopted to directly convey the jig.
Referring to fig. 3, fig. 3 is a schematic structural diagram of the jig of the present embodiment. The jig 6 in this embodiment includes a plurality of through holes for supporting the material level 61 and a carrier plate 62. A plurality of through hole support bin positions 61 are distributed on the bearing plate 62; the plurality of products are respectively carried in the plurality of through holes to support the material level 61. Support the cooperation of material level 61 and loading board 62 through a plurality of through-holes, the support that once only realizes a plurality of products bears to the outward appearance that once only realizes a plurality of products detects, promotes the batched detection efficiency of product. Preferably, the through-hole support level 61 includes an upper through-hole 611 and a lower through-hole 612, which communicate with each other. The upper through hole 611 and the lower through hole 612 are sequentially arranged along the thickness direction of the bearing plate 62; the diameter of the upper through hole 611 is larger than that of the lower through hole 612. Through the cooperation of the upper through hole 611 and the lower through hole 612 with different diameters, the lens products can be conveniently borne, and the upper end surface and the lower end surface of the products are exposed, so that the upper surface and the lower surface of the products can be conveniently detected. Preferably, the upper through hole 611 has a trumpet shape, and the lower through hole 612 has a cylindrical shape. Preferably, notches 621 are formed at two opposite ends of the bearing plate 62, and the driving assembly 51 is conveniently driven to toggle the bearing plate 62 through the notches 621.
Referring to fig. 1 again, the supporting position visual inspection mechanism 7 in this embodiment further includes a supporting position visual inspection assembly 71 and a supporting position visual inspection light assembly 72. The support position visual detection assembly 71 is disposed adjacent to the support position visual detection light source assembly 72. Preliminary appearance detection is carried out to the product before detecting and the position of treating the support through supporting position visual detection subassembly 71 and supporting position visual detection light source subassembly 72 cooperation, guarantees the completeness and the accuracy that detect. Specifically, the support position visual detection mechanism 7 further includes a support position detection adjustment assembly 73. The supporting position detecting and adjusting assembly 73 includes an adjusting plate 731 and an installing block 732, the adjusting plate 731 is disposed along the height direction, the installing block 732 is movably connected to the adjusting plate 731, the installing block 732 can move on the adjusting plate 731 along the height direction, in this embodiment, the height adjustment is achieved through a screw and a strip-shaped through hole formed in the installing block, and details are not repeated here. The supporting position visual detection component 71 is a CCD camera, and is mounted on the mounting block 732, and the mounting block 732 drives the supporting position visual detection component 71 to adjust in the height direction. The support position vision inspection light source assembly 72 includes a support position annular light source component 721 and a third adjustment mounting bracket 722. The third adjustment mounting block 722 is located above the mounting block 732, and one end of the third adjustment mounting block 722 is movably connected to the adjustment plate 731, and the structure and the adjustment principle of the third adjustment mounting block 722 are the same as those of the first adjustment mounting block 2211, and thus the detailed description thereof is omitted. The supporting-position annular light source 721 is an annular light source, is disposed on the upper surface of the annular opening of the third adjusting mounting frame 722, and is sleeved outside the supporting-position visual detection assembly 71, and the supporting-position annular light source 721 is used for providing a light source required by the supporting-position visual detection assembly 71 to take a picture. And the height of the supporting position annular light source part 721 and the supporting position visual detection assembly 71 is adjustable, so that the supporting position visual detection mechanism 7 can perform preliminary appearance detection on products of different specifications according to actual conditions. Preferably, the height direction of the adjusting plate 731 is further provided with a scale to realize the precise adjustment of the supporting position visual detection mechanism.
The detection process of the visual detection device in this embodiment is as follows: the higher authority that the product was lived in the absorption of outside manipulator removes to make the product through supporting position visual detection subassembly 71 directly over, support position visual detection subassembly 71 and carry out preliminary outward appearance to the product and detect, obtain the product and treat that the through-hole supports material level 61 and bear the outward appearance photo of support position, then, the product is shifted to on a plurality of through-holes of tool 6 support material level 61. Conveying drive assembly 51 stirs tool 6 and removes to above-mentioned visual detection subassembly 21 under, above-mentioned visual detection subassembly 21 carries out outward appearance to the higher authority of product earlier and detects, detect the completion back, conveying drive assembly 51 stirs tool 6 again and removes to visual detection subassembly below, visual detection subassembly carries out outward appearance below to the product below down and detects, then conveying drive assembly 51 stirs tool 6 again and is close to in side visual detection mechanism 4, the side detects and shifts the subassembly absorption product and remove to between two side visual detection pieces 411 and rotate the product, two side visual detection pieces 411 carry out outward appearance to the side of product and detect, then down carry out the unloading can, can shift the direct unloading of subassembly by side detection in this embodiment.
To sum up, the visual detection device in this embodiment sets up the overall detection that the overall arrangement realized the product with simple structure, and is efficient, and detection effect is good, and whole device overall arrangement is compact, and occupation space is little.
The above is merely an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (10)

1. A visual detection device is characterized by comprising an upper visual detection mechanism (2), a lower visual detection mechanism (3), a side visual detection mechanism (4), a transmission mechanism (5) and a jig (6); the upper visual detection mechanism (2) and the lower visual detection mechanism (3) are respectively arranged on a conveying path of the conveying mechanism (5), and the side visual detection mechanism (4) is close to the terminal of the conveying path of the conveying mechanism (5); tool (6) are used for supporting of product to bear, transport mechanism (5) conveying tool (6) support bear the product process visual detection mechanism (2) above the face with visual detection mechanism (3) below, visual detection mechanism (2) above the face with visual detection mechanism (3) below are right respectively carry out outward appearance after detecting with below the face above the product, side visual detection mechanism (4) are received the product, and it is right to carry out outward appearance to the side of product and detect.
2. The visual inspection device of claim 1, further comprising a support position visual inspection mechanism (7); the supporting position visual detection mechanism (7) is close to the beginning end of the conveying path of the conveying mechanism (5); before the jig (6) supports and bears the product, the supporting position visual detection mechanism (7) performs appearance detection on the part of the product to be supported by the jig (6).
3. The visual inspection device of claim 1, wherein the fixture (6) comprises a plurality of through hole supporting material positions (61) and a bearing plate (62); the through hole supporting material positions (61) are distributed on the bearing plate (62); the products are respectively carried in the through holes to support the material level (61).
4. The visual inspection device of claim 3, wherein the through-hole-supporting level (61) comprises an upper through-hole (611) and a lower through-hole (612) communicating with each other; the upper through hole (611) and the lower through hole (612) are sequentially arranged along the thickness direction of the bearing plate (62); the diameter of the upper through-hole (611) is larger than the diameter of the lower through-hole (612).
5. The visual inspection device of claim 1, wherein the upper visual inspection mechanism (2) comprises an upper visual inspection assembly (21) and an upper light source assembly (22); the lower visual detection mechanism (3) comprises a lower visual detection assembly and a lower light source assembly; the detection end of the upper visual detection assembly (21) and the detection end of the lower visual detection assembly respectively face the upper surface and the lower surface of the product supported and carried by the jig (6), and the light source end of the upper light source assembly (22) and the light source end of the lower light source assembly respectively face the upper surface and the lower surface of the product supported and carried by the jig (6); the upper visual detection assembly (21) is used for detecting the upper appearance of the product, and the upper light source assembly (22) is used for providing a light source required by the upper visual detection assembly (21) for detecting the upper appearance of the product; the lower visual detection assembly is used for detecting the lower appearance of the product, and the lower light source assembly is used for providing a light source required by the lower visual detection assembly for detecting the lower appearance of the product.
6. The visual inspection device of claim 5, wherein the upper visual inspection mechanism (2) further comprises an upper focusing assembly (23); the lower visual detection mechanism (3) further comprises a lower focusing assembly (31); the upper focusing assembly (23) and the lower focusing assembly (31) are respectively connected with the upper visual detection assembly (21) and the lower visual detection assembly; the upper focusing assembly (23) is used for adjusting the distance of the upper visual detection assembly (21) relative to the product, and the lower focusing assembly (31) is used for adjusting the distance of the lower visual detection assembly relative to the product.
7. The visual inspection device of claim 5, wherein the upper visual inspection mechanism (2) further comprises an upper inspection backlight assembly (24); the lower visual inspection mechanism (3) further comprises a lower inspection backlight assembly (32); the upper surface detection backlight assembly (24) is positioned on one side of the jig (6) far away from the upper surface visual detection assembly (21), and the upper surface detection backlight assembly (24) is used for providing a backlight source for the upper surface visual detection assembly (21) to carry out the appearance detection on the upper surface of the product; the lower detection backlight assembly (32) is located on one side, away from the lower visual detection assembly, of the jig (6), and the lower detection backlight assembly (32) is used for providing a backlight source for the lower visual detection assembly to perform appearance detection below the product.
8. The visual inspection device according to claim 1, wherein the side visual inspection mechanism (4) comprises two side visual inspection assemblies (41) and a side inspection transfer assembly which are arranged at intervals, and a side inspection channel is formed between the two side visual inspection assemblies (41); the side inspection transfer assembly receives the product and transfers the product through a side inspection lane between two side vision inspection assemblies (41).
9. The visual inspection device according to claim 8, wherein said lateral visual inspection unit (41) comprises a lateral visual inspection member (411) and a lateral visual inspection light source member (412) provided on one side of said lateral visual inspection member (411); the side visual inspection pieces (411) of the two side visual inspection assemblies (41) are oppositely arranged; the side detection transfer assembly drives the product to pass between the two oppositely-arranged side visual detection pieces (411) and drives the product to rotate.
10. The visual inspection apparatus according to claim 2, wherein the support position visual inspection mechanism (7) includes a support position visual inspection assembly (71) and a support position visual inspection light source assembly (72); the supporting position visual detection assembly (71) is arranged adjacent to the supporting position visual detection light source assembly (72).
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Denomination of invention: Visual inspection device

Effective date of registration: 20231208

Granted publication date: 20230919

Pledgee: Industrial and Commercial Bank of China Limited Huizhou Branch

Pledgor: HUIZHOU DESAY AUTOMATION TECHNOLOGY Co.,Ltd.

Registration number: Y2023980070135