CN220574070U - Product appearance defect detection device - Google Patents

Abstract

The utility model discloses a product appearance defect detection device, which comprises: the annular conveying line is provided with a plurality of conveying carriers capable of moving along a conveying track, a loading disc which is detachably connected is arranged in the conveying carriers, and the loading disc is provided with clamping and positioning parts corresponding to a plurality of detected products; the visual detection module is used for carrying out visual identification detection on the detected product which passes through the annular conveying line and is positioned in the conveying carrier by the clamping; the defective product receiving assembly is used for taking and transferring defective products in appearance in the loading tray; the material supplementing assembly is used for supplementing the inspected good products to the empty clamping and positioning part of the loading disc after the bad products are taken away; and the transplanting mechanism is used for transferring the loading disc between the conveying carrier and the material supplementing assembly. The equipment can continuously run, replaces manual work, has the advantages of high detection efficiency and accurate detection, and can save the cost of additionally arranging a carrying tray vacancy to complement the step of placing the inspected good product mechanism.

Description

Product appearance defect detection device

Technical Field

The application relates to the technical field of product detection devices, in particular to a product appearance defect detection device.

Background

Some high-grade commodities correspond to customers with high consumption level and high quality requirements, so that the appearance is particularly important to be carefully detected before the commodities are sold in factories; at present, a quality inspector and a inspected product are generally placed in a darkroom together, the product is illuminated through a spotlight, the quality inspector inspects the appearance of the product by naked eyes, defective products are picked out for concentration, and the product with qualified appearance is placed in another position for concentration. The appearance quality defect is inspected by naked eyes, the efficiency is low, the labor intensity is high, and the detection omission phenomenon exists; in addition, the manual detection capability level is limited, and the device can cope with obvious scratches and dirt, but is weak when defects such as globose and white, strong light dirt, orange peel surface, pits, corrosion points, non-polishing, lines, material lines and the like on the appearance of the product are detected from the microscopic view and the human body function bearing strength. If the product with defects in appearance flows out, bad commodities are sold on the market, the defects are diffused in a user use scene, further obvious defects are caused, and customer consumption experience is reduced.

Therefore, how to improve the detection efficiency of the appearance defects of the product and the detection quality are the problems to be solved.

Disclosure of Invention

The utility model mainly aims at the problems and provides a product appearance defect detection device which aims at solving the technical problems in the background technology.

In order to achieve the above object, the present utility model provides a product appearance defect detecting device, comprising: the annular conveying line is provided with a plurality of conveying carriers capable of moving along a conveying track, a loading disc which is detachably connected is arranged in the conveying carriers, and the loading disc is provided with clamping and positioning parts corresponding to a plurality of detected products;

the visual detection module is used for carrying out visual identification detection on the detected products which pass through the annular conveying line and are positioned in the conveying carrier by clamping;

the defective product receiving assembly is used for taking and transferring defective products in the loading tray;

the material supplementing assembly is used for supplementing the inspected good products to the empty clamping and positioning part of the loading tray after the bad products are taken away;

and the transplanting mechanism is used for transferring the loading disc between the conveying carrier and the material supplementing assembly.

Further, the visual detection module comprises a first CCD camera, a first auxiliary light source, a second CCD camera and a second auxiliary light source;

when the detected product is conveyed through the first CCD camera by the conveying carrier, the object distance between the detected product and the lens of the first CCD camera is 370-390 mm, the depth of field is 7.5-9 mm, and the included angle between the direct light of the first auxiliary light source and the end face of the detected product is 60-80 degrees;

when the detected product is conveyed by the conveying carrier and passes through the second CCD camera, the object distance between the detected product and the lens of the second CCD camera is 240-260 mm, the depth of field is 18-21 mm, and the included angle between the direct light of the second auxiliary light source and the end face of the detected product is 0 degree.

Further, the defective product receiving assembly comprises a material taking and overturning mechanism, a transfer and sorting mechanism and a collection and recovery mechanism; the material taking and overturning mechanism is used for taking the products with bad appearance in the loading tray and overturning the products to a position corresponding to the material taking of the transfer sorting mechanism; the transfer sorting mechanism is used for taking out and sorting defective products taken out by the material taking turnover mechanism and transferring the defective products to a position corresponding to the material taking of the collection and recovery mechanism; the collection and recovery mechanism is used for conveying and collecting the defective products conveyed by the transfer and classification mechanism to the defective product receiving tray.

Further, the conveying carrier comprises a containing groove approximately corresponding to the volume of the loading disc, an elastic supporting piece is arranged on the inner wall of the containing groove, and a limit cover plate is arranged at one end, far away from the elastic supporting piece; the clamping and positioning part is a stepped through hole which is arranged on the loading disc and corresponds to the outline of the detected product.

Further, the material supplementing assembly comprises a first mechanical arm, a rotary platform and a plurality of groups of transfer carriers arranged on the rotary platform, and the loading disc is detachably connected with the transfer carriers; and the power output end of the first mechanical arm is provided with a material taking part.

Further, the material taking turnover mechanism comprises a frame, a driving motor and a vacuum clamping and sucking group; the power output end of the driving motor is rotationally connected with the frame, and the vacuum clamping and sucking set is arranged at the power output end of the driving motor; the number of the vacuum suction heads of the vacuum clamping group corresponds to the number of the clamping and positioning parts of the loading disc.

Further, the transfer classification mechanism comprises a second mechanical arm, a third mechanical arm, a first linear module, a second linear module, a first classification tray connected with the power output end of the first linear module, and a second classification tray connected with the output end of the second linear module; and the power output ends of the second mechanical arm and the third mechanical arm are respectively provided with a vacuum suction head.

Further, the collection and recovery mechanism comprises a fourth mechanical arm, a lifting defective product receiving tray module and a receiving rack; the power output end of the fourth mechanical arm is provided with a defective vacuum suction head group and a receiving tray suction head group; the material receiving frame is provided with a plurality of material receiving areas capable of clamping and positioning the defective material receiving tray.

Further, the transplanting mechanism comprises a third linear module, a first finger cylinder and a second finger cylinder, and clamping blocks are arranged at the power output ends of the first finger cylinder and the second finger cylinder; the first finger cylinder and the second finger cylinder are connected with the power output end of the third linear module through lifting cylinders; the first finger cylinder is also provided with a good product suction head group.

Compared with the prior art, the product appearance defect detection device provided by the utility model can run continuously, replaces manual work, has the advantages of high detection efficiency and accurate detection, and can also save the cost of additionally arranging a carrying tray vacancy to complement the step of placing the detected good product mechanism.

Drawings

Fig. 1 is a schematic structural diagram of a product appearance defect detecting device according to the present application.

Fig. 2 is a schematic structural view of the product appearance defect detecting device with the hood removed.

Fig. 3 is a schematic view of a part of a component structure of a product appearance defect detecting device according to the present application.

Fig. 4 is a schematic structural diagram of a visual inspection module of a product appearance defect inspection device according to the present application.

Fig. 5 is a schematic view of a part of a component structure of a product appearance defect detecting device according to the present application.

Fig. 6 is a schematic structural diagram of a material taking and turning mechanism of a product appearance defect detecting device.

Fig. 7 is a schematic structural diagram of a conveying carrier of a product appearance defect detecting device.

Fig. 8 is a schematic structural diagram of a feeding component and transplanting mechanism of the product appearance defect detection device.

Fig. 9 is a schematic structural diagram of a defective product receiving assembly of the product appearance defect detecting device.

Fig. 10 is a schematic structural diagram of a fourth mechanical arm of the product appearance defect detecting device.

Reference numerals shown in the drawings: 1. an endless conveyor line; 2. conveying the carrier; 210. loading a disc; 211. clamping and positioning parts; 220. a receiving groove; 230. an elastic supporting piece; 240. a limit cover plate; 3. a visual detection module; 310. a first CCD camera; 320. a first auxiliary light source; 330. a second CCD camera; 340. a second auxiliary light source; 4. defective product receiving components; 410. a material taking turnover mechanism; 411. a frame; 412. a driving motor; 413. a vacuum chuck group; 420. a transit classification mechanism; 421. a second mechanical arm; 422. a third mechanical arm; 423. a first linear module; 424. a second linear module; 425. a first sorting tray; 426. a second sorting tray; 430. a collection and recovery mechanism; 431. a fourth mechanical arm; 432. lifting the defective product receiving tray module; 433. a material receiving frame; 4331. a material receiving area; 434. defective vacuum suction head group; 435. a suction head group of a receiving tray; 5. a feed supplement assembly; 510. a first mechanical arm; 511. a material taking member; 520. rotating the platform; 530. a transfer carrier; 6. a transplanting mechanism; 610. a third linear module; 620. a first finger cylinder; 621. good product suction head group; 630. a second finger cylinder; 640. clamping blocks; 650. a lifting cylinder; 660. empty loading tray recovery.

Detailed Description

Referring to fig. 1 to 10, the present embodiment provides a product appearance defect detecting device, which includes:

an annular conveying line 1, wherein the annular conveying line 1 is provided with a plurality of conveying carriers 2 capable of moving along a conveying track, a loading disc 210 which is detachably connected is arranged in the conveying carriers 2, and the loading disc 210 is provided with clamping positioning parts 211 corresponding to a plurality of detected products;

the visual detection module 3 is used for carrying out visual identification detection on the detected products clamped and positioned in the conveying carriers 2 passing through the annular conveying line 1;

a defective product receiving assembly 4, where the defective product receiving assembly 4 is configured to take and transfer defective products in the loading tray 210;

the material supplementing assembly 5 is used for supplementing the inspected good products to the empty clamping and positioning part 211 of the loading disc 210 after the bad products are taken away by the material supplementing assembly 5;

and the transplanting mechanism 6 is used for transferring the loading tray 210 between the conveying carrier 2 and the material supplementing assembly 5.

The conveying carrier 2 extends out of the track of the annular conveying line 1, so that the annular conveying line 1 is prevented from shielding the loading disc 210, and the visual detection module 3 is affected to collect image analysis and comparison. When the visual detection module 3 detects that the appearance of a product in the loading tray 210 is defective, the conveying carrier 2 moves to the defective product receiving assembly 4 along the conveying track of the annular conveying line 1, the defective product receiving assembly 4 only takes and conveys the defective product in the loading tray 210, and the qualified product is continuously left at the clamping and positioning part 211 of the loading tray 210, the quantity of the clamping and positioning parts 211 of the loading tray 210 is quantitative, and since the qualified product for appearance detection of the product or the product component is sent to the next process for packaging or assembly, the quantity interval form of the supplied materials is required to be regular, a vacancy is reserved after the defective product in the clamping and positioning part 211 of the loading tray 210 is taken out, and the detected defective product is fed by the empty clamping and positioning part 211 of the loading tray 210 after the defective product is taken out by the feeding assembly 5; the material supplementing assembly 5 is arranged on the periphery of the annular conveying line 1, so that the transplanting mechanism 6 is required to take out the loading disc 210 with the empty clamping positioning part 211 from the conveying carrier 2, place the loading disc 210 at the material supplementing assembly 5, and move the loading disc 210 back to the conveying carrier 2 on the annular conveying line 1 by the transplanting mechanism 6 after the qualified products are supplemented; and the annular conveying line 1 is utilized for continuous and circular conveying, and the annular conveying line 1 is shared for loading, feeding and discharging of the detected products, so that the cost is saved.

This automatic change outward appearance check out test set, sustainable operation replaces the manual work, has detection efficiency height, detects accurate advantage, can also save in addition to establish the cost of carrying the tray vacancy and mending the good product mechanism step of examining.

Referring to fig. 3 and 4, the visual inspection module 3 includes a first CCD camera 310, a first auxiliary light source 320, a second CCD camera 330, and a second auxiliary light source 340;

when the detected product is conveyed by the conveying carrier 2 and passes through the first CCD camera 310, the object distance between the detected product and the lens of the first CCD camera 310 is 370-390 mm, the depth of field is 7.5-9 mm, and the included angle between the direct light of the first auxiliary light source 320 and the end face of the detected product is 60-80 degrees;

when the detected product is conveyed by the conveying carrier 2 and passes through the second CCD camera 330, the object distance between the detected product and the lens of the second CCD camera 330 is 240-260 mm, the depth of field is 18-21 mm, and the direct light of the second auxiliary light source 340 forms an included angle of 0 degree with the end face of the detected product.

The second auxiliary light source 340 is disposed adjacent to the conveying carrier 2 and is located between the second CCD camera 330 and the conveying carrier 2; the second auxiliary light source 340 is preferably annular in structure, and emits parallel light rays which are not directed to the second auxiliary light source 340 and the product to be tested.

The first CCD camera 310, the first auxiliary light source 320 detects the product appearance defect as follows: scratch, dirt, globose blushing, strong light dirt and the like; the product appearance defects detected by the second CCD camera 330 and the second auxiliary light source 340 are as follows: scratch, orange peel, pitting corrosion spots, non-polished, line patterns, dirt, and the like.

In some embodiments, the second CCD camera 330 and the second auxiliary light source 340 are commonly mounted on an X-direction linear module, so that the position adjustment can be performed together.

Referring to fig. 2-6, the defective product receiving assembly 4 includes a material taking and turning mechanism 410, a transit sorting mechanism 420, and a collection and recovery mechanism 430; the material taking and overturning mechanism 410 is configured to take out the products with poor appearance in the loading tray 210, and overturn the products to a position corresponding to the material taking by the transit sorting mechanism 420; the transfer sorting mechanism 420 is configured to take out and sort the defective products taken out by the material taking and turning mechanism 410, and transfer the defective products to a position corresponding to the material taking by the collection and recovery mechanism 430; the collection and recovery mechanism 430 is configured to transfer and collect the defective products transferred by the transfer and classification mechanism 420 to a defective product receiving tray.

Referring to fig. 5 and 7, the conveying carrier 2 includes a receiving groove 220 substantially corresponding to the volume of the loading tray 210, an elastic supporting member 230 is disposed on an inner wall of the receiving groove 220, and a limiting cover plate 240 is disposed at an end far from the elastic supporting member 230; the clamping and positioning portion 211 is a stepped through hole provided in the loading tray 210 and corresponding to the outline of the product to be inspected.

The resilient abutments 230 may be spring plungers in some embodiments; the step-shaped through holes can bear the outer edges of the detected products, and meanwhile, the visual camera is not influenced to collect appearance images of the detected products through the through holes. The limiting cover plate 240 is matched with the elastic supporting piece 230, and is used for clamping the loading disc 210 arranged in the accommodating groove 220 for positioning; the holding accommodation groove 220 is slightly longer than the loading tray 210 in the length direction, the elastic supporting member 230 compensates for the looseness in the length direction, and the loading tray 210 is manually and conveniently loaded into the holding accommodation groove 220 from one end of the holding accommodation groove 220 provided with the elastic supporting member 230 without disassembling the limit cover plate 240.

Referring to fig. 2 and 8, the feeding assembly 5 includes a first mechanical arm 510, a rotating platform 520, and a plurality of groups of transfer carriers 530 disposed on the rotating platform 520, and the loading tray 210 is detachably connected with the transfer carriers 530; the power output end of the first mechanical arm 510 is provided with a material taking member 511.

The first mechanical arm 510 may be a multi-axis mechanical arm, and the transfer carrier 530 has a structure substantially identical to that of the transfer carrier 2, and also has a receiving groove 220 substantially corresponding to the volume of the loading tray 210, and is directly connected to the rotary table 520 without including a pulley block corresponding to the endless conveyor line 1; the first mechanical arm 510 is configured to move according to a deployment command of the upper computer, and cooperate with the material taking part 511 to mutually regulate and control inspected good products loaded in the plurality of loading trays 210, so that different loading trays 210 sequentially obtain filling positions of the empty clamping positioning parts 211, and then the empty clamping positioning parts are conveyed back to the conveying carrier 2 on the annular conveying line 1 by the transplanting mechanism 6, so that the good product blanking station of the annular conveying line 1 can be directly blanked, and an independent material supplementing mechanism and a conveying mechanism are not required to be opened, thereby increasing equipment cost and space occupation. The take-off 511 may be a vacuum tip in some embodiments.

Referring to fig. 6 and 5, the material taking and turning mechanism 410 includes a frame 411, a driving motor 412, and a vacuum chuck 413; the power output end of the driving motor 412 is rotatably connected with the frame 411, and the vacuum clamping set 413 is mounted at the power output end of the driving motor 412; the number of vacuum suction heads of the vacuum chuck 413 corresponds to the number of chuck positioning parts 211 of the loading tray 210.

The upper computer controls a plurality of vacuum suction heads in the vacuum clamping group 413 according to the detection condition of the visual detection module 3, the vacuum suction heads corresponding to defective products work, defective products are adsorbed and clamped, the vacuum suction heads corresponding to the defective products do not work, and the defective products are continuously remained in the loading tray 210; the driving motor 412 then drives the vacuum chuck 413 to rotate to a position that keeps the transport carrier 2 away and facilitates the material taking by the transfer sorting mechanism 420. After the material is taken by the transfer sorting mechanism 420, when the next group of conveying carriers 2 corresponds to the incoming material, the driving motor 412 drives the vacuum clamping group 413 to return.

Referring to fig. 2 and 9, the transfer sorting mechanism 420 includes a second mechanical arm 421, a third mechanical arm 422, a first linear module 423, a second linear module 424, a first sorting tray 425 connected to the power output end of the first linear module 423, and a second sorting tray 426 connected to the output end of the second linear module 424; the power output ends of the second mechanical arm 421 and the third mechanical arm 422 are respectively provided with a vacuum suction head.

In the appearance defects, according to different appearance defect conditions, the requirements are correspondingly classified and recovered, the second mechanical arm 421 and the third mechanical arm 422 can be multi-axis mechanical arms, the first classifying material trays 425 and the second classifying material trays 426 on the first linear module 423 and the second linear module 424 are matched to flexibly move, the vacuum suction head is carried according to the regulation and control of the upper computer, a bad product is adsorbed from the vacuum clamping group 413 at one time, and the corresponding first classifying material trays 425 or second classifying material trays 426 are placed. The first sorting tray 425 and the second sorting tray 426 have a plurality of storage slots arranged regularly therein. The first linear module 423 and the second linear module 424 respectively drive the first sorting tray 425 and the second sorting tray 426 to horizontally move between the material taking and overturning mechanism 410 and the lifting defective material receiving tray module 432.

Referring to fig. 2, 9 and 10, the collection and recovery mechanism 430 includes a fourth mechanical arm 431, a lifting defective product receiving tray module 432 and a receiving rack 433; the power output end of the fourth mechanical arm 431 is provided with a defective vacuum suction head group 434 and a receiving tray suction head group 435; the material receiving rack 433 is provided with a plurality of material receiving areas 4331 for clamping and positioning the defective material receiving tray.

The lifting defective product receiving tray module 432 is of a lifting platform structure, the defective product vacuum suction head group 434 corresponds to the first sorting tray 425 and the receiving groove in the second sorting tray 426, can adsorb a plurality of defective products at one time, is driven by the fourth mechanical arm 431 to be placed into the defective product receiving tray, after the defective products are accommodated in the defective product receiving tray and full of materials, the receiving tray suction head group 435 is started, the whole defective product receiving tray is adsorbed, and the fourth mechanical arm 431 drives the receiving area 4331 placed into the receiving rack 433 to perform layered stacking.

The lifting defective receiving tray module 432 drives the next empty defective receiving tray to lift up for the replenishment.

Referring to fig. 2, 9 and 10, the transplanting mechanism 6 includes a third linear module 610, a first finger cylinder 620 and a second finger cylinder 630, and power output ends of the first finger cylinder 620 and the second finger cylinder 630 are respectively provided with a clamping block 640; the first finger cylinder 620 and the second finger cylinder 630 are connected with the power output end of the third linear module 610 through lifting cylinders 650; the first finger cylinder 620 is further provided with a good suction head set 621.

The second finger cylinder 630 is only provided with a involutory clamping block 640 for clamping the no-load loading tray 210 allocated in the transfer carrier 530, and is conveyed to the empty loading tray recycling place 660 for centralized recycling along with the driving of the third linear module 610.

And the first finger cylinder 620 is further provided with a good product suction head group 621, which is used for clamping the loading tray 210 filled with good products by the clamping blocks 640 of the first finger cylinder 620, and when the third linear module 610 drives the loading tray 2 to be conveyed back to the conveying carrier 2 on the annular conveying line 1, the good products in the clamping and positioning part 211 are adsorbed and positioned, so that falling and displacement are prevented in the conveying process, and the stability is improved.

Claims (9)

1. A product appearance defect detection device, characterized by comprising:

the annular conveying line is provided with a plurality of conveying carriers capable of moving along a conveying track, a loading disc which is detachably connected is arranged in the conveying carriers, and the loading disc is provided with clamping and positioning parts corresponding to a plurality of detected products;

the visual detection module is used for carrying out visual identification detection on the detected products which pass through the annular conveying line and are positioned in the conveying carrier by clamping;

the defective product receiving assembly is used for taking and transferring defective products in the loading tray;

the material supplementing assembly is used for supplementing the inspected good products to the empty clamping and positioning part of the loading tray after the bad products are taken away;

and the transplanting mechanism is used for transferring the loading disc between the conveying carrier and the material supplementing assembly.

2. The device for detecting product appearance defects according to claim 1, wherein the visual detection module comprises a first CCD camera, a first auxiliary light source, a second CCD camera and a second auxiliary light source;

when the detected product is conveyed through the first CCD camera by the conveying carrier, the object distance between the detected product and the lens of the first CCD camera is 370-390 mm, the depth of field is 7.5-9 mm, and the included angle between the direct light of the first auxiliary light source and the end face of the detected product is 60-80 degrees;

when the detected product is conveyed by the conveying carrier and passes through the second CCD camera, the object distance between the detected product and the lens of the second CCD camera is 240-260 mm, the depth of field is 18-21 mm, and the included angle between the direct light of the second auxiliary light source and the end face of the detected product is 0 degree.

3. The product appearance defect detection device according to claim 1, wherein the defective product receiving component comprises a material taking and overturning mechanism, a transit sorting mechanism and a collection and recovery mechanism; the material taking and overturning mechanism is used for taking the products with bad appearance in the loading tray and overturning the products to a position corresponding to the material taking of the transfer sorting mechanism; the transfer sorting mechanism is used for taking out and sorting defective products taken out by the material taking turnover mechanism and transferring the defective products to a position corresponding to the material taking of the collection and recovery mechanism; the collection and recovery mechanism is used for conveying and collecting the defective products conveyed by the transfer and classification mechanism to the defective product receiving tray.

4. The product appearance defect detection device according to claim 1, wherein the conveying carrier comprises a containing groove approximately corresponding to the volume of the loading disc, an elastic supporting piece is arranged on the inner wall of the containing groove, and a limit cover plate is arranged at one end far away from the elastic supporting piece; the clamping and positioning part is a stepped through hole which is arranged on the loading disc and corresponds to the outline of the detected product.

5. The product appearance defect detection device according to claim 1, wherein the material supplementing assembly comprises a first mechanical arm, a rotary platform and a plurality of groups of transfer carriers arranged on the rotary platform, and the loading disc is detachably connected with the transfer carriers; and the power output end of the first mechanical arm is provided with a material taking part.

6. A product appearance defect detection device in accordance with claim 3, wherein said material taking and turning mechanism comprises a frame, a driving motor, and a vacuum chuck; the power output end of the driving motor is rotationally connected with the frame, and the vacuum clamping and sucking set is arranged at the power output end of the driving motor; the number of the vacuum suction heads of the vacuum clamping group corresponds to the number of the clamping and positioning parts of the loading disc.

7. The product appearance defect detection device according to claim 3, wherein the transit classification mechanism comprises a second mechanical arm, a third mechanical arm, a first linear module, a second linear module, a first classification tray connected with the power output end of the first linear module, and a second classification tray connected with the output end of the second linear module; and the power output ends of the second mechanical arm and the third mechanical arm are respectively provided with a vacuum suction head.

8. The product appearance defect detection device according to claim 3, wherein the collection and recovery mechanism comprises a fourth mechanical arm, a lifting defective product receiving tray module and a receiving rack; the power output end of the fourth mechanical arm is provided with a defective vacuum suction head group and a receiving tray suction head group; the material receiving frame is provided with a plurality of material receiving areas capable of clamping and positioning the defective material receiving tray.

9. The product appearance defect detection device according to claim 1, wherein the transplanting mechanism comprises a third linear module, a first finger cylinder and a second finger cylinder, and clamping blocks are arranged at power output ends of the first finger cylinder and the second finger cylinder; the first finger cylinder and the second finger cylinder are connected with the power output end of the third linear module through lifting cylinders; the first finger cylinder is also provided with a good product suction head group.