CN220455184U - Appearance detection device - Google Patents

Abstract

The utility model belongs to the technical field of product defect detection, and discloses appearance detection equipment. The appearance detection equipment can detect products under different visual detection stations through the rotation of the rotary table, so that the omnibearing appearance inspection is realized. Compared with a traditional single detection station, the design of a plurality of visual detection stations of the appearance detection equipment can improve detection efficiency and reduce errors caused by manual operation and visual fatigue. In addition, the visual detection stations distributed at different positions also reduce the volume of equipment, improve the flexibility, ensure that the product is not easy to interfere in the process of entering and exiting or circulating, effectively improve the efficiency and reliability of appearance detection, help to ensure the quality of the product, reduce the outflow of defective products and further ensure the quality of subsequent assembled products.

Description

Appearance detection device

Technical Field

The utility model relates to the technical field of product defect detection, in particular to appearance detection equipment.

Background

Along with the development of technology, the production speed of the product is faster and faster, and good products and defective products exist in the production process, so that the output quality of the product is seriously affected by the outflow of the defective products, and the quality of subsequent assembled products is reduced; initially, the defects are picked in a manual detection mode, visual differences, visual fatigue or visual blind spots can appear in manual visual inspection, and the detection efficiency is low and the reliability is poor.

Most of the existing appearance detection equipment has only one detection station, photographing and shooting of all angles of a product need to be completed at one detection station, the single station is long in detection time and low in detection efficiency, and all cameras are concentrated at one detection station, so that the equipment is huge in size, poor in flexibility and easy to interfere in the process of product in-out or circulation.

Accordingly, there is a need for an appearance inspection apparatus to solve the problems in the prior art.

Disclosure of Invention

The utility model aims to provide appearance detection equipment, which effectively improves the efficiency and reliability of appearance detection, is beneficial to ensuring the quality of products and reducing the outflow of defective products, thereby ensuring the quality of subsequent assembled products.

To achieve the purpose, the utility model adopts the following technical scheme:

an appearance detection device comprising:

a machine table;

the rotary table is rotatably arranged on the machine table, a plurality of jig positions which are arranged around the center of the rotary table are arranged on the rotary table, jigs are positioned on the jig positions, and products are placed on the jigs;

a first visual detection station and two second visual detection stations are sequentially arranged along the circumferential direction of the rotary table, the first visual detection station is used for detecting appearance characteristics of the upper end face and the lower end face of the product, and the two second visual detection stations are respectively used for detecting appearance characteristics of the left end face and the right end face of the product and appearance characteristics of the front end face and the rear end face of the product;

and the turntable driving mechanism is used for driving the turntable to rotate, so that each jig sequentially passes through the first visual detection station and the two second visual detection stations to finish the omnibearing detection of the appearance of the product.

Optionally, the first visual inspection station includes first support, layer board and first camera, first support set up in on the board, two the layer board along vertical direction set up relatively in on the first support, every all be provided with on the layer board one first camera, two first camera is configured to gather respectively the appearance characteristic of two terminal surfaces about the product.

Optionally, the first vision detection station further includes two first light sources, the two first light sources are respectively disposed on the supporting plate, and the first light sources are configured to irradiate light on a view finding area of the first camera.

Optionally, the first vision detection station further includes two first adjusting components, two support plates are all slidably disposed on the first support, each support plate is correspondingly connected with an output end of one first adjusting component, and two first adjusting components are used for adjusting relative distances between two first cameras.

Optionally, the second visual inspection station includes second support, riser, second camera and lift rotating assembly, the second support set up in on the board, the riser vertical install in on the second support, the second camera set up in on the riser, lift rotating assembly set up in on the second support, lift rotating assembly can with tool jack-up on the tool position is rotatory preset angle, so that the second camera detects the outward appearance characteristic of two terminal surfaces about the product, or detect the outward appearance characteristic of two terminal surfaces around the product.

Optionally, the second vision detection station further includes a second light source, where the second light source is disposed on the vertical plate, and the second light source is used to irradiate light on a view finding area of the second camera.

Optionally, the second vision detection station further includes a second adjusting component, the vertical plate is in sliding connection with the second support, an output end of the second adjusting component is connected with the vertical plate, and the second adjusting component is used for adjusting a relative position of the second camera and the lifting rotating component.

Optionally, the lift rotating assembly includes lifter plate, lift cylinder, rotating electrical machines, locating plate and locating pin, the cylinder body of lift cylinder with second leg joint, the piston rod of lift cylinder with the lifter plate is connected, the rotating electrical machines is fixed in on the lifter plate, just the rotation axis of rotating electrical machines passes the lifter plate with the locating plate is connected, a plurality of the locating pin equipartition in on the locating plate, be equipped with on the tool with locating pin complex locating hole, the locating pin can with location Kong Xiaokong cooperation, the lift cylinder is used for driving the tool rises, the rotating electrical machines is used for driving the tool is rotatory to predetermine the angle.

Optionally, the outward appearance check out test set still includes end limit visual detection station, end limit visual detection station includes fixed axle, fixed plate and two end limit cameras, the fixed axle passes the carousel center is fixed on the board, the carousel with the fixed axle rotates to be connected, the fixed plate set up in on the fixed axle, two end limit camera interval set up in on the fixed plate, and two end limit cameras are towards two arbitrary one in the second visual detection station, end limit camera is used for detecting the end limit portion of product.

Optionally, the carousel actuating mechanism includes carousel motor, drive assembly and cam precision divider, the carousel motor is fixed in on the board, the carousel motor with drive assembly's output is connected, drive assembly's output is connected with cam precision divider's input, cam precision divider's output with the carousel is connected, the carousel motor is used for the drive cam precision divider drives the carousel rotates preset angle.

Optionally, the transmission assembly includes driving pulley, driven pulley and drive belt, driving pulley is connected with the output shaft of carousel, driven pulley with the input shaft of cam precision divider is connected, the drive belt winds and establishes driving pulley with on the driven pulley, and by driving pulley with driven pulley tensioning.

The beneficial effects are that:

according to the appearance detection equipment provided by the utility model, through the rotation of the turntable, products can be detected at different visual detection stations, so that the omnibearing appearance inspection is realized. Compared with a traditional single detection station, the design of a plurality of visual detection stations of the appearance detection equipment can improve detection efficiency and reduce errors caused by manual operation and visual fatigue. In addition, the visual detection stations distributed at different positions also reduce the volume of equipment, improve the flexibility, ensure that the product is not easy to interfere in the process of entering and exiting or circulating, effectively improve the efficiency and reliability of appearance detection, help to ensure the quality of the product, reduce the outflow of defective products and further ensure the quality of subsequent assembled products.

Drawings

Fig. 1 is a schematic structural view of an appearance detecting apparatus provided by the present utility model;

FIG. 2 is a schematic view of a first vision inspection station provided by the present utility model;

FIG. 3 is a schematic view of the structure of the second vision inspection station of the present utility model at one viewing angle;

FIG. 4 is a schematic view of the structure of the second vision inspection station of the present utility model at another viewing angle;

fig. 5 is a schematic structural diagram of a turntable driving mechanism provided by the utility model.

In the figure:

10. a product;

100. a machine table; 110. a turntable; 111. a jig; 1111. positioning holes; 200. a first vision inspection station; 210. a first bracket; 220. a supporting plate; 230. a first camera; 240. a first light source; 250. a first adjustment assembly; 251. a first lead screw; 252. a first hand wheel; 300. a second vision inspection station; 310. a second bracket; 320. a vertical plate; 330. a second camera; 340. a lifting rotating assembly; 341. a lifting plate; 342. a lifting cylinder; 343. a rotating electric machine; 344. a positioning plate; 345. a positioning pin; 350. a second light source; 360. a second adjustment assembly; 361. a second screw rod; 362. the second hand wheel; 400. a terminal edge visual detection station; 410. a fixed shaft; 420. a fixing plate; 430. an edge camera; 500. a turntable driving mechanism; 510. a turntable motor; 520. a transmission assembly; 521. a driving pulley; 522. a driven pulley; 523. a transmission belt; 530. a cam precision divider; 600. a loading and unloading station; 700. feeding and discharging mechanical arms; 800. reject area.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The embodiment provides an appearance detection device for detecting the appearance quality of a product 10 in an omnibearing manner, as shown in fig. 1-5, the appearance detection device comprises a machine 100, a turntable 110 and a turntable driving mechanism 500, wherein the turntable 110 is rotatably arranged on the machine 100, a plurality of jig 111 positions which are arranged around the center of the turntable 110 are arranged on the turntable 110, the jig 111 is positioned on the jig 111, the product 10 is arranged on the jig 111, a first visual detection station 200 and two second visual detection stations 300 are sequentially arranged along the circumferential direction of the turntable 110, the first visual detection station 200 is used for detecting the appearance characteristics of the upper end face and the lower end face of the product 10, the two second visual detection stations 300 are respectively used for detecting the appearance characteristics of the left end face and the right end face of the product 10 and the appearance characteristics of the front end face and the rear end face, and the turntable driving mechanism 500 is used for driving the turntable 110 to rotate, so that each jig 111 sequentially passes through the first visual detection station 200 and the two second visual detection stations 300 to complete the omnibearing detection of the appearance of the product 10.

The appearance inspection device provided in this embodiment can detect the product 10 at different visual inspection stations by rotating the turntable 110, thereby realizing an omnibearing appearance inspection. Compared with a traditional single detection station, the design of a plurality of visual detection stations of the appearance detection equipment can improve detection efficiency and reduce errors caused by manual operation and visual fatigue. In addition, the visual inspection stations distributed at different positions also reduce the volume of equipment, improve the flexibility, ensure that the product 10 is not easy to interfere in the process of entering and exiting or circulating, effectively improve the efficiency and reliability of appearance inspection, help to ensure the quality of the product 10, reduce the outflow of defective products, and further ensure the quality of subsequent assembled products.

Optionally, the first visual inspection station 200 includes a first bracket 210, a supporting plate 220 and a first camera 230, the first bracket 210 is disposed on the machine 100, two supporting plates 220 are disposed on the first bracket 210 oppositely along a vertical direction, one first camera 230 is disposed on each supporting plate 220, and the two first cameras 230 are configured to collect appearance characteristics of the upper and lower end surfaces of the product 10 respectively. The arrangement of the first bracket 210 provides a fixed supporting structure on the machine 100, so that the supporting plate 220 and the camera can be stably placed at the correct position, thus ensuring that the camera is stable during the detection process and cannot shake or deviate, thereby obtaining more accurate detection results. Two layer boards 220 are set up on first support 210 relatively along vertical direction, all are provided with a first camera 230 on every layer board 220, and the setting of layer board 220 makes every camera can independently detect two terminal surfaces about the product 10, and can not interfere or shelter from each other, can realize catching the image of two terminal surfaces about the product 10 simultaneously like this, realizes quick and accurate detection.

Optionally, as shown in fig. 2, the first vision detecting station 200 further includes two first light sources 240, where the two first light sources 240 are respectively disposed on the supporting plate 220, and the first light sources 240 are used to irradiate light on the view-finding area of the first camera 230. By adding the first light source 240, the brightness of the light can be increased, ensuring that the first camera 230 is able to obtain enough light to capture a clear image during the detection process. In addition, the first light source 240 is disposed on the supporting plate 220, the first light source 240 is tightly combined with the view finding area of the first camera 230, so that the direction and angle of the light can be ensured to be consistent with the view finding direction and angle of the first camera 230, the detection error caused by the deviation of the angle of the light can be reduced, and the light source is disposed on the supporting plate 220, so that the light can be uniformly irradiated, the occurrence of shadow or reflection in the image can be avoided, and the accuracy and reliability of the detection result can be ensured. The first light source 240 provides good illumination conditions, so that the contrast of the appearance features of the product 10 can be improved, the first camera 230 can more easily distinguish the details and features of the product 10, which is helpful to improve the sensitivity and accuracy of detection, and reduce the possibility of missed detection and false detection.

Optionally, as shown in fig. 2, the first vision inspection station 200 further includes two first adjusting assemblies 250, two supporting plates 220 are slidably disposed on the first bracket 210, each supporting plate 220 is correspondingly connected to an output end of one first adjusting assembly 250, and the two first adjusting assemblies 250 are used for adjusting the relative distance between the two first cameras 230. By adding the first adjustment assembly 250, the relative distance between the two first cameras 230 may be adjusted. In this way, the position of the first camera 230 can be flexibly adjusted according to the size and shape of different products 10, and the optimal distance between the first camera 230 and the products 10 is ensured, so that a clearer and more accurate image is obtained.

Optionally, the first adjusting assembly 250 includes a first screw 251 and a first hand wheel 252, the first screw 251 is screwed on the first bracket 210, one end of the first screw 251 is rotationally connected with the supporting plate 220, the other end is coaxially fixed with the hand wheel, and the position of the first camera 230 on the supporting plate 220 can be adjusted by rotating the hand wheel.

Optionally, in order to further improve the detection efficiency, ensure that the detection time of the product 10 at each visual detection station is equal, improve the product 10 circulation speed, two second visual detection stations 300 are provided in this embodiment, one second visual detection station 300 is used for detecting appearance characteristics of left and right end surfaces of the product 10, and the other second visual detection station 300 is used for detecting appearance characteristics of front and rear end surfaces of the product 10, so that the situation that the detection time is too long at a certain station, resulting in waiting at a subsequent station, and stability and high efficiency of the whole detection flow are maintained. Specifically, the second visual inspection station 300 includes a second support 310, a vertical plate 320, a second camera 330 and a lifting rotation assembly 340, the second support 310 is disposed on the machine 100, the vertical plate 320 is vertically mounted on the second support 310, the second camera 330 is disposed on the vertical plate 320, the lifting rotation assembly 340 is disposed on the second support 310, and the lifting rotation assembly 340 can lift up and rotate the jig 111 on the position of the jig 111 by a preset angle, so that the second camera 330 can detect the appearance characteristics of the left end face and the right end face of the product 10, or detect the appearance characteristics of the front end face and the rear end face of the product 10. Due to the arrangement of the two second visual inspection stations 300, the inspection of the left and right end surfaces and the front and rear end surfaces of the two products 10 can be simultaneously performed, and the inspection time is greatly shortened and the inspection efficiency is effectively improved by the parallel inspection mode. It can be appreciated that, since the two second vision inspection stations 300 are respectively responsible for inspecting different end surfaces, the product 10 can be circulated between the different stations without waiting for the inspection of all angles to be completed, so that the circulation speed of the product 10 can be greatly improved, and the production efficiency can be further increased. Moreover, the arrangement of the lifting rotating assembly 340 enables the jig 111 on the jig 111 to be lifted and rotated by a preset angle, so that the second camera 330 can conveniently detect the appearance characteristics of different end faces of the product 10, and the design increases the flexibility and adaptability of the device, and is suitable for various different types of products 10.

Optionally, the second vision inspection station 300 further includes a second light source 350, where the second light source 350 is disposed on the riser 320, and the second light source 350 is used to irradiate light on the viewfinder area of the second camera 330. By adding the second light source 350, the brightness and uniformity of the light can be increased, so that the contrast of the appearance features of the product 10 is improved, the high-contrast image can more clearly display the details and features of the product 10, so that the second camera 330 can more accurately perform appearance detection, and the possibility of missed detection and false detection is reduced. In addition, the second light source 350 is disposed on the vertical plate 320 and is tightly combined with the view finding area of the second camera 330, so that the direction and angle of the light can be ensured to be consistent, the detection error caused by the change of the angle of the light can be eliminated, and the stability and accuracy of the detection can be improved.

Optionally, as shown in fig. 3-4, the second visual inspection station 300 further includes a second adjusting assembly 360, the vertical plate 320 is slidably connected to the second bracket 310, an output end of the second adjusting assembly 360 is connected to the vertical plate 320, and the second adjusting assembly 360 is used for adjusting a relative position of the second camera 330 and the lifting rotating assembly 340. The second adjusting assembly 360 allows adjusting the relative position of the second camera 330 and the lifting rotating assembly 340, and by adjusting the position of the camera, different detection requirements can be flexibly adapted according to different sizes and shapes of the product 10, and the optimal distance and angle between the camera and the product 10 are ensured, so that a clearer and more accurate image is obtained.

Optionally, the second adjusting component 360 includes a second screw rod 361 and a second hand wheel 362, the second screw rod 361 is in threaded connection with the second bracket 310, one end of the second screw rod 361 of the vertical plate 320 is rotationally connected, the second hand wheel 362 is coaxially fixed with the other end of the second screw rod, and the position of the second camera 330 on the second vertical plate 320 relative to the lifting rotating component 340 can be adjusted by rotating the hand wheel.

Alternatively, as shown in fig. 3 to 4, the lifting rotation assembly 340 includes a lifting plate 341, a lifting cylinder 342, a rotating motor 343, a positioning plate 344 and a positioning pin 345, the cylinder body of the lifting cylinder 342 is connected with the second bracket 310, the piston rod of the lifting cylinder 342 is connected with the lifting plate 341, the rotating motor 343 is fixed on the lifting plate 341, and the rotating shaft of the rotating motor 343 passes through the lifting plate 341 to be connected with the positioning plate 344, a plurality of positioning pins 345 are uniformly distributed on the positioning plate 344, positioning holes 1111 matched with the positioning pins 345 are provided on the jig 111, the positioning pins 345 can be matched with the pin holes of the positioning holes 1111, the lifting cylinder 342 is used for driving the jig 111 to lift, and the rotating motor 343 is used for driving the jig 111 to rotate by a preset angle, which is 180 ° in this embodiment. It can be appreciated that when the product 10 flows from the first visual inspection station 200 to the first second visual inspection station 300, the second camera 330 of the second visual inspection station 300 completes inspection of the left end face of the product 10, then the product 10 rotates 180 ° by matching the lifting cylinder 342 and the rotating motor 343, the right end face of the product 10 continues to be inspected by the second camera 330, the rotating lifting assembly is reset after the inspection of the left end face and the right end face is completed, and the product 10 flows to the next second visual inspection station 300 along with the jig 111 and the turntable 110 to inspect the front end face and the rear end face. Only one second camera 330 is arranged at the second vision detection station 300, and the lifting rotating assembly 340 is utilized to perform angle adjustment, so that the detection of the left end face and the right end face of the product 10 can be completed at the same station, and the detection efficiency is greatly improved. Meanwhile, the continuity and stability of the detection flow can be maintained through the reset operation of the rotary lifting assembly

Optionally, the appearance detecting device further includes an end edge visual detecting station 400, where the end edge visual detecting station 400 includes a fixed shaft 410, a fixed plate 420 and two end edge cameras 430, the fixed shaft 410 passes through the center of the turntable 110 and is fixed on the machine 100, the turntable 110 is rotationally connected with the fixed shaft 410, the fixed plate 420 is disposed on the fixed shaft 410, the two end edge cameras 430 are disposed on the fixed plate 420 at intervals, and the two end edge cameras 430 face any one of the two second visual detecting stations 300, and the end edge visual detecting station 400 is used for monitoring the end edge of the product 10, so that the appearance characteristics of the product 10 can be checked more comprehensively and accurately, the quality of the product 10 can be improved, the outflow rate of defective products can be reduced, and the quality of subsequent assembled products can be ensured not to be affected.

Optionally, as shown in fig. 5, the turntable driving mechanism 500 includes a turntable motor 510, a transmission assembly 520 and a cam precision divider 530, where the turntable motor 510 is fixed on the machine 100, the turntable motor 510 is connected with an output end of the transmission assembly 520, an output end of the transmission assembly 520 is connected with an input end of the cam precision divider 530, an output end of the cam precision divider 530 is connected with the turntable 110, and the turntable motor 510 is used to drive the cam precision divider 530 to drive the turntable 110 to rotate by a preset angle, in this embodiment, the cam precision divider 530 rotates by 90 ° each time, that is, an included angle between the first visual inspection station 200 and the first second visual inspection station 300 is 90 °, and an included angle between the second visual inspection station 300 and the first second visual inspection station 300 is also 90 °. By the division control of the cam precision divider 530, the rotation angle of the turntable 110 is the same each time, and the residence time of the turntable on each visual inspection station is equal, so that the inspection time of each station is ensured to be consistent, the stability of the whole inspection process is maintained, and waiting and dragging between stations are avoided.

Alternatively, the transmission assembly 520 includes a driving pulley 521, a driven pulley 522, and a driving belt 523, the driving pulley 521 is connected to an output shaft of the turntable 110, the driven pulley 522 is connected to an input shaft of the cam precision divider 530, and the driving belt 523 is wound around the driving pulley 521 and the driven pulley 522 and is tensioned by the driving pulley 521 and the driven pulley 522.

The appearance detection device provided in this embodiment further includes a loading and unloading station 600 and a loading and unloading manipulator 700, be provided with four tool 111 positions on the carousel 110, the contained angle between two adjacent tool 111 positions is 90, a tool 111 has all been placed on every tool 111 position, in order to guarantee that tool 111 is stable, be equipped with the fixed pin in tool 111 position, be equipped with the fixed orifices on corresponding tool 111, the fixed pin wears to establish in the fixed orifices, thereby fix a position tool 111 at tool 111 position, loading and unloading station 600, first visual detection station 200 and two second visual detection stations 300 correspond a tool 111 respectively.

Specifically, the appearance detection device provided in this embodiment detects the flow as follows:

firstly, a loading and unloading manipulator 700 grabs and places a product 10 on a loading and unloading station 600 on a jig 111, and starts a turntable motor 510 to convey the product 10 to a first visual inspection station 200 through a turntable 110 to perform appearance inspection on the upper end face and the lower end face of the product 10;

then, after the product 10 flows from the first visual inspection station 200 to the first second visual inspection station 300, the second camera 330 of the second visual inspection station 300 completes inspection of the left end face of the product 10, then the product 10 rotates 180 ° by matching the lifting cylinder and the rotating motor 343, the right end face of the product 10 continues to be inspected by photographing through the second camera 330, the rotating lifting assembly is reset after the inspection of the left end face and the right end face is completed, and the product 10 flows to the next second visual inspection station 300 along with the jig 111 and the turntable 110 to perform photographing inspection of the front end face and the rear end face.

Finally, the product 10 returns to the loading and unloading station 600, if the product is detected to be qualified, the loading and unloading manipulator 700 grabs and places the product 10 in a qualified product area; if the product is detected to be unqualified, the product 10 is grabbed and placed in the unqualified product area 800 by the feeding and discharging mechanical arm 700. When the batch detection is performed, after the first product 10 to be detected flows into the first visual detection station 200, the feeding and discharging manipulator 700 can continuously feed the next product 10 to be detected to the jig 111 of the feeding and discharging tool, so that each station is ensured to run simultaneously, and the detection efficiency is greatly improved.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. Appearance detection device, characterized by comprising:

a machine (100);

the rotary table (110), the rotary table (110) is rotatably arranged on the machine table (100), a plurality of jig (111) positions which are arranged around the center of the rotary table (110) are arranged on the rotary table (110), a jig (111) is positioned on the jig (111), and the product (10) is placed on the jig (111);

a first visual detection station (200) and two second visual detection stations (300) are sequentially arranged along the circumferential direction of the turntable (110), the first visual detection station (200) is used for detecting appearance characteristics of the upper end face and the lower end face of the product (10), and the two second visual detection stations (300) are respectively used for detecting appearance characteristics of the left end face and the right end face of the product (10) and appearance characteristics of the front end face and the rear end face;

and the turntable driving mechanism (500) is used for driving the turntable (110) to rotate so that each jig (111) sequentially passes through the first visual detection station (200) and the two second visual detection stations (300) to finish omnibearing detection of the appearance of the product (10).

2. The appearance inspection apparatus according to claim 1, wherein the first visual inspection station (200) comprises a first bracket (210), a pallet (220) and a first camera (230), the first bracket (210) is disposed on the machine table (100), two pallets (220) are disposed on the first bracket (210) opposite to each other in a vertical direction, one first camera (230) is disposed on each pallet (220), and the two first cameras (230) are configured to collect appearance characteristics of upper and lower end surfaces of the product (10) respectively.

3. The appearance inspection device of claim 2, wherein the first vision inspection station (200) further comprises two first light sources (240), the two first light sources (240) being disposed on the pallet (220) respectively, the first light sources (240) being configured to illuminate light at a viewing area of the first camera (230).

4. The appearance inspection apparatus according to claim 2, wherein the first vision inspection station (200) further comprises two first adjustment assemblies (250), two of the pallets (220) are slidably disposed on the first support (210), each of the pallets (220) is correspondingly connected to an output end of one of the first adjustment assemblies (250), and the two first adjustment assemblies (250) are used for adjusting a relative distance between the two first cameras (230).

5. The appearance inspection apparatus according to claim 1, wherein the second visual inspection station (300) includes a second bracket (310), a vertical plate (320), a second camera (330) and a lifting rotation assembly (340), the second bracket (310) is disposed on the machine table (100), the vertical plate (320) is vertically mounted on the second bracket (310), the second camera (330) is disposed on the vertical plate (320), the lifting rotation assembly (340) is disposed on the second bracket (310), and the lifting rotation assembly (340) can lift up and rotate the jig (111) on the jig (111) by a preset angle, so that the second camera (330) can detect appearance characteristics of both left and right end surfaces of the product (10) or appearance characteristics of both front and rear end surfaces of the product (10).

6. The appearance inspection apparatus according to claim 5, wherein the second vision inspection station (300) further comprises a second light source (350), the second light source (350) being disposed on the riser (320), the second light source (350) being configured to illuminate light at a viewing area of the second camera (330).

7. The visual inspection apparatus of claim 5, wherein the second visual inspection station (300) further comprises a second adjustment assembly (360), the riser (320) is slidably connected to the second support (310), an output end of the second adjustment assembly (360) is connected to the riser (320), and the second adjustment assembly (360) is configured to adjust a relative position of the second camera (330) and the lifting and rotating assembly (340).

8. The appearance inspection device according to claim 5, wherein the lifting rotation assembly (340) comprises a lifting plate (341), a lifting cylinder (342), a rotating motor (343), a positioning plate (344) and a positioning pin (345), a cylinder body of the lifting cylinder (342) is connected with the second bracket (310), a piston rod of the lifting cylinder (342) is connected with the lifting plate (341), the rotating motor (343) is fixed on the lifting plate (341), a rotating shaft of the rotating motor (343) penetrates through the lifting plate (341) to be connected with the positioning plate (344), a plurality of positioning pins (345) are uniformly distributed on the positioning plate (344), positioning holes (1111) matched with the positioning pins (345) are formed in the jig (111), the positioning pins (345) can be matched with the positioning holes (1111) pin holes, the lifting cylinder (342) is used for driving the jig (111) to lift, and the rotating motor (343) is used for driving the jig (111) to rotate by a preset angle.

9. The appearance inspection apparatus according to claim 1, further comprising an end edge vision inspection station (400), the end edge vision inspection station (400) comprising a fixed shaft (410), a fixed plate (420) and two end edge cameras (430), the fixed shaft (410) passing through the center of the turntable (110) and being fixed on the machine table (100), the turntable (110) being rotationally connected with the fixed shaft (410), the fixed plate (420) being disposed on the fixed shaft (410), the two end edge cameras (430) being disposed on the fixed plate (420) at an interval, and the two end edge cameras (430) being directed towards any one of the two second vision inspection stations (300), the end edge cameras (430) being used for inspecting end edge portions of the product (10).

10. The appearance inspection device according to claim 1, wherein the turntable driving mechanism (500) comprises a turntable motor (510), a transmission assembly (520) and a cam precision divider (530), the turntable motor (510) is fixed on the machine table (100), the turntable motor (510) is connected with an output end of the transmission assembly (520), an output end of the transmission assembly (520) is connected with an input end of the cam precision divider (530), an output end of the cam precision divider (530) is connected with the turntable (110), and the turntable motor (510) is used for driving the cam precision divider (530) to rotate the turntable (110) by a preset angle.