Fully automatic appearance inspection machine

Abstract

The present invention discloses a fully automatic appearance inspection machine, including a frame, a turntable, a turntable power device, a loading mechanism and a unloading mechanism, the turntable is connected with a main gear and installed on the turntable power device, a plurality of transparent carriers are displayed in an annular shape on the turntable, a large gear is provided below the transparent carrier, the large gear is meshed with the main gear through a transition gear, the frame is distributed with a loading station, a plurality of side wall detection stations, an end face detection station and an unloading station, the side wall detection station is provided with a first detection camera, a first optical lens, an upper light source and a lower light source, the first optical lens is aligned with the side wall of the product, the end face detection station is provided with a second detection camera, a second optical lens and a coaxial light source distributed coaxially up and down, the upper and lower material mechanisms are respectively installed on the upper and lower material stations, when the turntable rotates one circle, the transparent carrier on the side wall detection station drives the product to complete a 360-degree rotation. The present invention can quickly and accurately detect all angles of the product, improve work efficiency, and ensure product quality.

Description

Technical Field

[0001] The present invention relates to the technical field of testing equipment, and more specifically to a full-automatic appearance testing machine. Background Art

[0002] With the rapid development of industry, people's demand for the quantity and quality of various products are constantly increasing, and manufacturers have increasingly stringent requirements for the appearance of products. In order to maintain the high-end quality standards of products, many products are simply inspected by manual visual inspection process to detect the appearance of products. However, the manual visual inspection process requires a lot of human resources, which is relatively costly, and the inspectors need to concentrate for a long time, which can easily lead to fatigue, false detection or omissions, which is far below the needs of industrial production, and cannot achieve high-end quality standards. At present, there are also some appearance inspection equipment, but their design is not complete enough, and they cannot do multi-angle inspections, and they cannot conduct comprehensive inspections of the product's appearance, which can easily cause errors and omissions. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a fully automatic appearance inspection machine, which can automatically inspect different angles of products quickly and accurately, improve work efficiency, and realize automated inspection.

[0004] According to one aspect of the present invention, a fully automatic appearance inspection machine is provided, which includes a frame, a turntable, a turntable power device, a loading mechanism and a unloading mechanism. The turntable power device is installed on the frame and a main gear is provided on the top of the turntable. The turntable is connected to the turntable power device. A plurality of transparent carrier plates are arranged in a ring shape on the turntable. A large gear with a hollow structure is connected below each transparent carrier plate. The large gear is rotatably installed at the bottom of the turntable. Each large gear is provided with a transition gear meshing with it, and each transition gear is meshed with the main gear. The fully automatic appearance inspection machine is evenly distributed with loading stations, a plurality of side wall inspection stations, end face inspection stations and unloading stations. The side wall inspection station is provided with a first An inspection camera, a first optical lens, an upper light source and a lower light source, the upper light source and the lower light source are respectively located at the upper and lower positions of the transparent carrier, the first optical lens is arranged at the front end of the first inspection camera and is aimed at the side wall of the product, the end face inspection station is provided with a second inspection camera, a second optical lens and a coaxial light source which are coaxially distributed up and down, the coaxial light source is located above the transparent carrier, the loading mechanism is installed at the loading station, the unloading mechanism is installed at the unloading station, the turntable drives the transparent carrier to move one station, each transparent carrier is meshed with the large gear through the main gear through the transition gear and rotates a certain angle, when the turntable rotates one circle, the transparent carrier on the side wall inspection station drives the product to complete a 360-degree rotation. Thus, the loading mechanism places the product to be tested on the transparent carrier, the turntable power device drives the main gear to rotate, the turntable rotates with the main gear, and at the same time, the main gear meshes with the transition gear and the transition gear meshes with the large gear, and the transparent carrier rotates with the large gear; the product to be tested moves from the loading station to the first side wall inspection station along the turntable in a counterclockwise direction, and at the same time, each transparent carrier rotates a certain angle in the clockwise direction. After rotating in place, the first inspection camera of the first side wall inspection station takes a picture of the side wall of the product to be tested and collects an image; then the product to be tested moves from the first side wall inspection station to the second side wall inspection station along the turntable in a counterclockwise direction, and at the same time, each transparent carrier rotates a certain angle in the clockwise direction. After rotating in place, the first inspection camera of the second side wall inspection station takes a picture of the side wall of the product to be tested The side wall of the tested product is photographed and an image is collected; by analogy, when the product to be tested moves counterclockwise with the turntable to the last side wall inspection station, each transparent carrier completes a rotation, and a circle of side walls of the product are photographed and the first inspection camera collects images; the product to be tested moves counterclockwise from the last side wall inspection station to the end face inspection station with the turntable, and the second inspection camera takes a photo of the end face of the product to collect images; the inspected product moves counterclockwise from the end face inspection station to the unloading station with the turntable, and the unloading mechanism takes the inspected product off the transparent carrier; the fully automatic appearance inspection machine can comprehensively inspect the appearance of the product from different angles, accurately judge whether the product appearance meets the standards, greatly improves work efficiency, and ensures high-quality inspection.

[0005] In some embodiments, a slewing bearing is provided inside the turntable, the outer ring of the slewing bearing is fixed, the transparent carrier is provided at the top of the inner ring of the slewing bearing, and the large gear is provided at the bottom of the inner ring of the slewing bearing. Therefore, the slewing bearing is also called a turntable bearing, and when the large gear meshes with the transition gear for transmission, the transparent carrier rotates with the large gear, and the transmission is very stable.

[0006] In some embodiments, the turntable is a hollow structure, a column is provided at the center of the turntable, the bottom of the column is fixed to the frame, a fixed plate is provided on the top of the column, the fixed plate is connected to the upper light source through a bracket, and both the upper light source and the lower light source are ring light sources. Thus, the upper light source is installed above the transparent carrier through the bracket, the angle of the upper light source can be fine-tuned, and the upper and lower light sources can ensure clear image acquisition and reduce the probability of misdetection.

[0007] In some embodiments, the turntable power device uses a direct drive motor, the center of the direct drive motor is provided with a through hole, the column passes through the through hole and its bottom is fixed to the frame, and the main gear is arranged on the top of the direct drive motor. Thus, the direct drive motor can directly connect the load, that is, the turntable and the main gear, with low energy consumption, high efficiency, low noise, low failure rate, and is conducive to high-efficiency production.

[0008] In some embodiments, the feeding mechanism includes a base, a feeding vibration plate and a feeding robot. The base is fixed on the frame, the feeding vibration plate is arranged on the base, a linear feeder is provided at the outlet of the feeding vibration plate, a straight vibrator is provided at the bottom of the linear feeder, and a staggered device is provided at the front end of the linear feeder. The staggered device includes a support frame, a staggered device, a guide rail and a slider. The slider cooperates with the guide rail, and both ends of the guide rail are fixed to the support frame. A small cylinder is provided at one end of the support frame, and a buffer is provided at the other end of the support frame. The telescopic rod of the small cylinder is connected to the slider, and the staggered device is arranged on the slider. The staggered device is provided with a product placement slot and a baffle. The telescopic drive of the small cylinder drives the product placement slot or the baffle to move to the discharge port of the linear feeder. Thus, the products to be tested are placed in the feeding vibration plate, and enter the linear feeder in sequence by vibration sorting. The telescopic rod of the small cylinder extends, the product placement slot moves to the discharge port of the linear feeder, and the products to be tested are pushed into the product placement slot; the telescopic rod of the small cylinder retracts, the misclassifier retreats as a whole, the baffle blocks the discharge port of the linear feeder, and the feeding manipulator grabs the products to be tested in the product placement slot onto the transparent carrier plate of the feeding station. In some embodiments, the unloading mechanism includes a good product box, a bad product box, an unloading rotary cylinder, and an unloading manipulator. The good product box and the bad product box are both installed on a frame. The unloading rotary cylinder is located between the good product box and the bad product box, and the top of the unloading rotary cylinder is connected to an unloading chute. Therefore, when unloading, the unloading robot grabs the products on the transparent carrier plate of the unloading station and puts them into the unloading chute, and the good products will be put into the good product box. If the product is defective, the unloading rotary cylinder drives the unloading chute to turn to the side of the defective product box, and the defective products are put into the defective product box.

[0009] In some embodiments, the loading robot and the unloading robot have the same structure, both including a vertical pole, a slide cylinder, a lifting cylinder and a finger cylinder. The side wall of the vertical pole is connected to the slide cylinder and its bottom is installed on the frame. The finger cylinder is vertically connected to the side wall of the lifting cylinder, and the lifting cylinder is connected to the slide cylinder. The finger cylinder of the loading robot is aligned front to back with the position of the product placement slot after retraction, and the finger cylinder of the unloading robot is aligned front to back with the center of the unloading rotating cylinder. Therefore, when loading, the finger cylinder moves to the position above the retracted product placement slot, the lifting cylinder drives the finger cylinder to move downward, the finger cylinder grabs the product to be tested, the lifting cylinder drives the finger cylinder to rise, the product to be tested leaves the product placement slot, the slide cylinder drives the lifting cylinder to move toward the transparent carrier of the loading station, the product to be tested reaches above the transparent carrier, the lifting cylinder drives the finger cylinder to descend, the product to be tested is placed on the transparent carrier, and the lifting cylinder drives the finger cylinder to rise; when unloading, the finger cylinder moves to the top of the product at the unloading station, the lifting cylinder drives the finger cylinder to descend, after the finger cylinder grabs the product, the lifting cylinder drives the finger cylinder to rise, the slide cylinder drives the lifting cylinder to move in the direction of the unloading rotating cylinder, and puts it into the unloading chute.

[0010] In some embodiments, the side wall inspection station and the end face inspection station are both provided with a vertical plate, the bottom of the vertical plate is mounted on the frame via a first adjustment slide, the side walls of the columns of the side wall inspection station are both provided with a second adjustment slide, the first inspection camera is connected to the second adjustment slide via a retaining frame assembly, and the first optical lens is aligned with the side wall of the product, the side walls of the columns of the end face inspection station are provided with a third adjustment slide, the second inspection camera is connected to the third adjustment slide via an L-shaped bracket, the coaxial light source is connected to the vertical plate via a fourth adjustment slide, and the second optical lens and the coaxial light source are aligned directly above the product. Thus, according to different products, the front and rear positions of the vertical plate as a whole can be adjusted via the first adjustment slide, the positions of the first inspection camera and the first optical lens can be adjusted via the second adjustment slide, the upper and lower positions of the second inspection camera and the second optical lens can be adjusted via the third adjustment slide, and the upper and lower positions of the coaxial light source can be adjusted via the fourth adjustment slide.

[0011] In some embodiments, there are five side wall inspection stations, eight transparent carriers, and the loading station, five side wall inspection stations, end surface inspection station, and unloading station are evenly distributed in a counterclockwise direction relative to the center of the turntable. When the turntable rotates 45 degrees, the transparent carrier rotates 72 degrees. Therefore, the number of side wall inspection stations determines how many times the side wall of the product is divided for inspection. No matter how many side wall inspection stations are set, it is necessary to ensure that the product completes 360-degree inspection without dead angles in the side wall inspection station process. If there are five side wall inspection stations, each time the turntable rotates 45 degrees, that is, 1 / 8 of a circle, each transparent carrier rotates 72 degrees, that is, 1 / 5 of a circle, so that the product can be photographed at five angles to inspect its appearance.

[0012] In some embodiments, there are six side wall inspection stations, nine transparent carriers, and the loading station, six side wall inspection stations, end surface inspection station, and unloading station are evenly distributed in a counterclockwise direction relative to the center of the turntable, and the transparent carrier rotates 60 degrees when the turntable rotates 40 degrees. Therefore, if there are six side wall inspection stations, each time the turntable rotates 40 degrees, i.e., 1 / 9 of a circle, each transparent carrier rotates 60 degrees, i.e., 1 / 6 of a circle, so that the product can be photographed at six angles to inspect its appearance.

[0013] In some embodiments, there are nine side wall inspection stations, twelve transparent carriers, and the loading station, nine side wall inspection stations, end surface inspection station, and unloading station are evenly distributed in a counterclockwise direction relative to the center of the turntable, and the transparent carrier rotates 40 degrees when the turntable rotates 30 degrees. Therefore, if there are nine side wall inspection stations, each time the turntable rotates 30 degrees, i.e., 1 / 12 of a circle, each transparent carrier rotates 40 degrees, i.e., 1 / 12 of a circle, so that the product can be photographed at 9 angles to inspect its appearance.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention is scientific and reasonable, has a compact structure, and realizes automated detection. The product to be tested is automatically grabbed onto a rotatable transparent carrier. Through the synchronous transmission of gears, the transparent carrier carrying the product rotates a certain angle while the turntable rotates one station. When the turntable rotates one circle, the transparent carrier on the side wall detection station drives the product to complete a 360-degree rotation. The fully automatic appearance inspection machine can automatically detect the appearance of the product from different angles of the product quickly and accurately. Setting multiple stations can detect multiple products at the same time, which greatly reduces labor, improves work efficiency, and ensures product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of a fully automatic appearance inspection machine of the present invention;

[0016] Figure 2 It is a structural diagram of the distribution of each workstation;

[0017] Figure 3 It is a schematic diagram of the installation between the main gear, transition gear, large gear, turntable and transparent carrier plate;

[0018] Figure 4 It is a structural diagram of the feeding mechanism;

[0019] Figure 5 It is a schematic diagram of the structure of the device on the side wall inspection station;

[0020] Figure 6 This is a schematic diagram of the structure of the device on the end face detection station

[0021] Figure 7 It is a structural diagram of the unloading mechanism. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with specific implementation modes.

[0023] like Figure 1 and 2 As shown, a fully automatic appearance inspection machine according to an embodiment of the present invention includes a frame 1, a turntable 2, a turntable power device 3, a loading mechanism 4 and a unloading mechanism 5.

[0024] like Figure 3 As shown, the turntable 2 adopts a hollow disc, and the turntable power device 3 adopts a DD motor, that is, a direct drive motor, and the center of the direct drive motor has a through hole. The bottom of the turntable power device 3 is installed on the frame 1, and the top of the turntable power device 3 is bolted with a main gear 31, and the turntable 2 is bolted to the end face of the turntable power device 3. The direct drive motor can directly connect the load, that is, the turntable 2 and the main gear 31, with low energy consumption, high efficiency, low noise, and low failure rate, which is conducive to high-efficiency production. A plurality of through holes are arranged in a ring on the turntable 2, and a transparent carrier plate 6 is installed in each through hole. In this embodiment, the transparent carrier plate 6 adopts a circular optical glass as the carrier plate, and a positioning fixture 62 is installed in the center of the transparent carrier plate 6. A large gear 32 with a hollow structure is connected to the bottom of each transparent carrier plate 6, and the large gear 32 can be rotatably installed at the bottom of the turntable 2. Specifically, a slewing bearing 61 is provided in each through hole of the turntable 2, the outer ring of the slewing bearing 61 is connected to two support frames (not shown) by screws, and the support frame and the turntable 2 are fixed by screws through the fixing frame 24, the transparent carrier plate 6 is connected to the top of the inner ring of the slewing bearing 61 by screws, and the large gear 32 is connected to the bottom of the inner ring of the slewing bearing 61 by screws. The slewing bearing 61 is also called a turntable bearing. When the large gear 32 and the transition gear 33 are meshed and transmitted, the transparent carrier plate 6 rotates with the large gear 32, and the transmission is very stable. Each large gear 32 is provided with a transition gear 33 meshed therewith, and each transition gear 33 is meshed with the main gear 31. The transition gear 33 is located at the bottom of the turntable 2, and the fixed mandrel (not shown) of the transition gear 33 is fixedly connected to the turntable 2 through the fixing seat 331, which can ensure that the position of the transition gear 33 is securely installed and the position is stable during the gear meshing process.

[0025] like Figure 2 As shown, the fully automatic appearance inspection machine is evenly distributed with a loading station 11, a plurality of side wall inspection stations 12, an end surface inspection station 13 and a unloading station 14. The side wall inspection station 12 is used to inspect the side wall of the product. In this embodiment, the product is inverted on the transparent carrier plate 6, so the end surface inspection station 13 is used to inspect the bottom of the product. Figure 5As shown, the side wall inspection station 12 is provided with a first inspection camera 71, a first optical lens 72, an upper light source 73 and a lower light source 74. The upper light source 73 and the lower light source 74 are respectively located at the upper and lower positions of the transparent carrier plate 6. The first optical lens 72 is connected to the front end of the first inspection camera 71 and is aimed at the side wall of the product. Figure 6 As shown, the end surface inspection station 13 is provided with a second inspection camera 81, a second optical lens 82 and a coaxial light source 83 which are coaxially distributed up and down. The second optical lens 82 is connected to the second inspection camera 81. The coaxial light source 83 is located directly above the transparent carrier 6. The second inspection camera 81, the second optical lens 82 and the coaxial light source 83 are coaxially arranged up and down at the center of the transparent carrier 6. The first inspection camera 71 and the second inspection camera 81 are both CCD cameras. The feeding mechanism 4 is installed at the feeding station 11, and the unloading mechanism 5 is installed at the unloading station 14. The turntable 2 drives the transparent carrier 6 to move one station. Each transparent carrier 6 is meshed with the large gear 32 through the main gear 31 through the transition gear 33 and rotates at a certain angle. When the turntable 2 rotates one circle, the transparent carrier 6 on the side wall inspection station 12 drives the product to complete a 360-degree rotation.

[0026] like Figure 5 As shown, a column 21 is provided at the center of the turntable 2, and the column 21 runs through the center of the turntable power device 3, and the bottom of the column 21 is fixed to the frame 1, and a fixed plate 22 is installed on the top of the column 21 by screws, and the fixed plate 22 is connected to the upper light source 73 through a bracket 23. The lower light source 74 is installed on the frame 1 through a support rod 741, and the position of the lower light source 74 is below the large gear 32, but the lower light source 74 is directly below the transparent carrier 6, and the large gear 32 does not affect the light irradiation. The upper light source 73 and the lower light source 74 are both annular light sources. The upper light source 73 is installed above the transparent carrier 6 through a bracket 23, and the angle of the upper light source 73 can be fine-tuned. The upper and lower light sources 74 can ensure clear image acquisition and reduce the probability of misdetection.

[0027] like Figure 4As shown, the feeding mechanism 4 includes a base 41, a feeding vibration plate 42 and a feeding manipulator 43. The base 41 is fixed to the frame 1 by bolts, the feeding vibration plate 42 is installed on the base 41, the outlet of the feeding vibration plate 42 is connected to a linear feeder 44, and a straight vibrator 45 is installed at the bottom of the linear feeder 44. The front end of the linear feeder 44 is provided with a staggered device 46, and the staggered device 46 includes a support frame 461, a staggered device 462, a guide rail 463 and a slider 464. The slider 464 cooperates with the guide rail 463, and both ends of the guide rail 463 are fixed to the support frame 461. A small cylinder 465 is installed at one end of the support frame 461, and a buffer 466 is installed at the other end of the support frame 461. The telescopic rod of the small cylinder 465 is connected to the slider 464, and the staggered device 462 is arranged on the slider 464. The misclassifier 462 is provided with a product placement slot 4621 and a baffle 4622. The telescopic movement of the small cylinder 465 drives the product placement slot 4621 or the baffle 4622 to move to the discharge port of the linear feeder 44. The products to be tested are placed in the feeding vibration plate 42, and enter the linear feeder 44 in sequence by vibration sorting. The telescopic rod of the small cylinder 465 extends, and the product placement slot 4621 moves to the discharge port of the linear feeder 44, and the products to be tested are pushed into the product placement slot 4621; the telescopic rod of the small cylinder 465 retracts, the misclassifier 462 retreats as a whole, the baffle 4622 blocks the discharge port of the linear feeder 44, and the feeding manipulator 43 grabs the products to be tested in the product placement slot 4621 onto the transparent carrier plate 6 of the feeding station 11.

[0028] like Figure 7 As shown, the unloading mechanism 5 includes a good product box 51, a defective product box 52, an unloading rotary cylinder 53 and an unloading manipulator 54. The good product box 51 and the defective product box 52 are both installed on the frame 1, and the unloading rotary cylinder 53 is located between the good product box 51 and the defective product box 52. The top of the unloading rotary cylinder 53 is connected with an unloading chute 55. When unloading, the unloading manipulator 54 grabs the product on the transparent carrier 6 of the unloading station 14 into the unloading chute 55, and the good product will be put into the good product box 51. If the product is defective, the unloading rotary cylinder 53 drives the unloading chute 55 to turn to the side of the defective product box 52, and the defective product is put into the defective product box 52.

[0029] like Figure 4 and 7As shown, in this embodiment, the loading robot 43 and the unloading robot 54 have the same structure, and both include a vertical rod 541, a slide cylinder 542, a lifting cylinder 543 and a finger cylinder 544. The side wall of the vertical rod 541 is fixedly connected to the slide cylinder 542, and the bottom of the vertical rod 541 is installed on the frame 1. The finger cylinder 544 is vertically connected to the side wall of the lifting cylinder 543 by screws, and the lifting cylinder 543 is connected to the slide cylinder 542 by screws. The finger cylinder 544 of the loading robot 43 is aligned front and back with the position of the retracted product placement slot 4621. The finger cylinder 544 of the unloading robot 54 is aligned front and back with the center of the unloading rotary cylinder 53. During loading, the finger cylinder 544 moves to above the position of the retracted product placement slot 4621, the lifting cylinder 543 drives the finger cylinder 544 to move downward, the finger cylinder 544 grabs the product to be tested, the lifting cylinder 543 drives the finger cylinder 544 to rise, the product to be tested leaves the product placement slot 4621, the slide cylinder 542 drives the lifting cylinder 543 to move toward the transparent carrier 6 of the loading station 11, the product to be tested arrives above the transparent carrier 6, the lifting cylinder 543 drives the finger cylinder 544 to descend, the product to be tested is placed on the transparent carrier 6, and the lifting cylinder 543 drives the finger cylinder 544 to rise. When unloading, the finger cylinder 544 moves to the top of the product at the unloading station 14, and the lifting cylinder 543 drives the finger cylinder 544 to descend. After the finger cylinder 544 grabs the product, the lifting cylinder 543 drives the finger cylinder 544 to rise, and the slide cylinder 542 drives the lifting cylinder 543 to move in the direction of the unloading rotating cylinder 53 and put it into the unloading chute 55.

[0030] like Figure 5 and 6 As shown, both the side wall inspection station 12 and the end face inspection station 13 are provided with a vertical plate 9, and the bottom of the vertical plate 9 is mounted on the frame 1 through a first adjustment slide 91. Specifically, the first adjustment slide 91 includes a base plate 911 and a first moving block 912, the base plate 911 is mounted on the frame 1 through bolts, the first moving block 912 is connected to the bottom of the vertical plate 9, the base plate 911 is provided with a rack 90, and the first moving block 912 is correspondingly provided with a gear (not shown) that cooperates with the rack 90, the base plate 911 and the first moving block 912 are connected and guided in a dovetail manner, and the front and rear position of the first moving block 912 on the base plate 911 can be adjusted by an adjustment knob, that is, the first adjustment slide 91 can adjust the front and rear position of the vertical plate 9 as a whole.

[0031] like Figure 5As shown, the side walls of the vertical plate 9 of the side wall inspection station 12 are each provided with a second adjustment slide 92, the first inspection camera 71 is connected to the second adjustment slide 92 via a retaining frame assembly 95, and the first optical lens 72 is aligned with the side wall of the product. Specifically, the second adjustment slide 92 includes a second moving block 921, and the vertical plate 9 of the side wall detection station 12 is guided by the second moving block 921 through a dovetail groove. A long screw 922 is provided in the vertical plate 9 of the side wall detection station 12, and the second moving block 921 is provided with an internal thread (not shown in the figure) that cooperates with the long screw 922. The second moving block 921 can be moved up and down along the vertical plate 9 by an adjustment knob; the retaining frame assembly 95 includes a fixed plate 951 and an adjustment disk 952, the first detection camera 71 is installed on the side wall of the adjustment disk 952 through a fixed block 953, the first optical lens 72 is installed on the side wall of the adjustment disk 952 through a locking ring 954, the adjustment disk 952 is provided with two arc holes 9521, the side wall of the adjustment disk 952 is installed on the side wall of the fixed plate 951, and the angle of the rotating product of the first optical lens 72 and the first detection camera 71 can be adjusted by slightly rotating the arc hole 9521, and the fixed plate 951 is connected to the second moving block 921. The up and down positions and the rotation angles of the first detection camera 71 and the first optical lens 72 can be adjusted by the second adjustment slide 92 and the retaining frame assembly 95 .

[0032] like Figure 6 As shown, the side wall of the vertical plate 9 of the end face detection station 13 is provided with a third adjustment slide 93, the second detection camera 81 is connected to the third adjustment slide 93 through an L-shaped bracket 96, the coaxial light source 83 is connected to the vertical plate 9 through a fourth adjustment slide 94, and the second optical lens 82 and the coaxial light source 83 are aligned directly above the product. Specifically, the third adjustment slide 93 includes a third moving block 931, the vertical plate 9 of the end face detection station 13 and the third moving block 931 are guided by a dovetail groove, the vertical plate 9 of the end face detection station 13 is vertically installed with a rack 932, and the third moving block 931 is provided with a gear (not shown) that cooperates with the rack 932, the second detection camera 81 is connected to the L-shaped bracket 96 through a fixed structure 961, and the L-shaped bracket 96 is connected to the third moving block 931. The third moving block 931 can drive the second detection camera 81 and the second optical lens 82 to move up and down along the vertical plate 9 through an adjustment knob. The fourth adjustment slide 94 includes a fourth moving block 941. The vertical plate 9 of the end face detection station 13 and the fourth moving block 941 are guided by a dovetail groove. A gear (not shown) is provided in the fourth moving block 941 to cooperate with the rack 932 of the vertical plate 9. The coaxial light source 83 is connected to the fourth moving block 941 through a fixed structure 942. The fourth moving block 941 can drive the coaxial light source 83 to move up and down through an adjustment knob.

[0033] In this embodiment, there are five side wall inspection stations 12, one end face inspection station 13, one loading station 11 and one unloading station 14, so there are eight transparent carriers 6 in total. The loading station 11, five side wall inspection stations 12, the end face inspection station 13 and the unloading station 14 are evenly distributed in a counterclockwise direction relative to the center of the turntable 2. When the turntable 2 rotates 45 degrees, the transparent carrier 6 rotates 72 degrees. The number of side wall inspection stations 12 determines how many times the side wall of the product is divided for inspection. No matter how many side wall inspection stations 12 are set, it is necessary to ensure that the product completes 360-degree inspection without dead angles in the process of the side wall inspection station 12. When there are five side wall inspection stations 12, each time the turntable 2 rotates 45 degrees, that is, 1 / 8 of a circle, each transparent carrier 6 rotates 72 degrees, that is, 1 / 5 of a circle, so that the product can be photographed at five angles to inspect its appearance.

[0034] In practical applications, six side wall inspection stations 12 can be used, and one end surface inspection station 13, loading station 11 and unloading station 14 can be used. Therefore, there are nine transparent carriers 6 in total. The loading station 11, six side wall inspection stations 12, end surface inspection station 13, and unloading station 14 are evenly distributed in a counterclockwise direction relative to the center of the turntable 2. When the turntable 2 rotates 40 degrees, the transparent carrier 6 rotates 60 degrees. When there are six side wall inspection stations 12, each time the turntable 2 rotates 40 degrees, that is, 1 / 9 of a circle, each transparent carrier 6 rotates 60 degrees, that is, 1 / 6 of a circle, so that the product can be photographed at six angles to inspect its appearance.

[0035] In practical applications, nine side wall inspection stations 12 can be used, and one end surface inspection station 13, one loading station 11, and one unloading station 14, so there are twelve transparent carriers 6 in total. The loading station 11, nine side wall inspection stations 12, the end surface inspection station 13, and the unloading station 14 are evenly distributed in a counterclockwise direction relative to the center of the turntable 2. When the turntable 2 rotates 30 degrees, the transparent carrier 6 rotates 40 degrees. When there are nine side wall inspection stations 12, each time the turntable 2 rotates 30 degrees, i.e., 1 / 12 of a circle, each transparent carrier 6 rotates 40 degrees, i.e., 1 / 12 of a circle, so that the product can be photographed at 9 angles to inspect its appearance.

[0036] like Figure 1 As shown, a safety door 101 and a protective grating 102 are arranged on the rack 1, and the images collected by the first detection camera 71 and the second detection camera 81 are transmitted to the background for image analysis. A display 103 is installed on the table of the rack 1 for observing the detection situation. An operating table 104 is provided at the front end of the rack 1, and a keyboard drawer 105 is provided on the operating table 104. A three-color light 106 is installed on the top of the rack 1 to remind the operation status of the equipment.

[0037] The working process of the fully automatic appearance inspection machine with five side wall inspection stations 12, one end face inspection station 13, one loading station 11 and one unloading station 14 is described. The loading manipulator 43 of the loading mechanism 4 grabs the product to be tested from the product placement slot 4621 to the positioning fixture 62 of the transparent carrier 6, and the turntable power device 3 drives the main gear 31 to rotate, and the turntable 2 rotates with the main gear 31. At the same time, the main gear 31 meshes with the transition gear 33 and the transition gear 33 meshes with the large gear 32, and the transparent carrier 6 rotates with the large gear 32; the product to be tested moves from the loading station 11 to the first side wall inspection station 12 along the turntable 2 in the counterclockwise direction. At this time, the turntable 2 rotates 45 degrees, and at the same time, each transparent carrier 6 rotates in the clockwise direction. The transparent carrier 6 rotates in the clockwise direction, and the rotation angle of the transparent carrier 6 is 72 degrees; after the rotation is in place, the first detection camera 71 of the first side wall detection station 12 takes a picture of the side wall of the product to be tested and collects an image. At this time, the feeding mechanism 4 continues to grab the product to be tested onto the positioning fixture 62 of the transparent carrier 6 on the feeding station 11; then the product to be tested moves from the first side wall detection station 12 to the second side wall detection station 12 along the turntable 2 in the counterclockwise direction. At this time, the turntable 2 rotates 45 degrees, and at the same time, each transparent carrier 6 rotates 72 degrees in the clockwise direction. After the product is moved into place, the first inspection camera 71 of the second side wall inspection station 12 takes a picture of the side wall of the product to be tested and collects an image, and the feeding mechanism 4 still feeds the transparent carrier 6; and so on, when the product to be tested moves counterclockwise with the turntable 2 to the last side wall inspection station 12, each transparent carrier 6 completes one circle, that is, a 30-degree rotation, and a circle of the side wall of the product is photographed and collected by the first inspection camera 71; the product to be tested moves counterclockwise from the last side wall inspection station 12 to the end face inspection station 13 with the turntable 2. At this time, the turntable 2 After rotating 45 degrees, each transparent carrier 6 rotates 72 degrees in the clockwise direction. After rotating in place, the second detection camera 81 takes pictures of the end face, i.e., the bottom face of the product to collect images; the inspected product moves from the end face inspection station 13 to the unloading station 14 along with the turntable 2 rotating 45 degrees in the counterclockwise direction. At the same time, each transparent carrier 6 rotates 72 degrees in the clockwise direction. The unloading mechanism 5 takes the inspected product from the transparent carrier 6 with the loading manipulator 43 structure. Good products will be put into the good product box 51, and defective products will be put into the defective products and. The fully automatic appearance inspection machine can comprehensively inspect the appearance of the product from different angles, accurately judge whether the product appearance meets the standard, and ensure high-quality inspection. Once the equipment is turned on, each station operates at the same time, which greatly improves work efficiency.

[0038] The present invention is scientific and reasonable, has a compact structure, and realizes automated detection. The product to be tested is automatically grabbed onto the rotatable transparent carrier 6. Through the synchronous transmission of gears, the turntable 2 rotates one station and the transparent carrier 6 carrying the product rotates a certain angle. When the turntable 2 rotates one circle, the transparent carrier 6 on the side wall detection station 12 drives the product to complete a 360-degree rotation. The fully automatic appearance detection machine can automatically detect the appearance of the product from different angles of the product quickly and accurately. Multiple stations are set to detect multiple products at the same time, which greatly reduces labor, improves work efficiency, and ensures product quality.

[0039] The above are only some embodiments of the present invention. It should be pointed out that for ordinary technicians in this field, other modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. Fully automatic appearance inspection machine, used for defect detection of the side wall and end face of the product, characterized by: The invention comprises a frame (1), a turntable (2), a turntable power device (3), a loading mechanism (4) and a unloading mechanism (5), wherein the turntable power device (3) is mounted on the frame (1) and a main gear (31) is provided on the top of the turntable (2), the turntable (2) is connected to the turntable power device (3), a plurality of transparent carrier plates (6) are arranged in a ring shape on the turntable (2), a large gear (32) with a hollow structure is connected below each of the transparent carrier plates (6), the large gear (32) is rotatably mounted on the bottom of the turntable (2), each of the large gears (32) is provided with a transition gear (33) meshing therewith, and each of the transition gears (33) is meshed with the main gear (31), and the fully automatic appearance inspection machine is evenly distributed with a loading station (11), a plurality of side wall inspection stations (12), an end face inspection station (13) and an unloading station (14), wherein the side wall inspection station (12) is provided with a first inspection camera (71), a first optical lens (71), and a plurality of side wall inspection stations (12). 2), an upper light source (73) and a lower light source (74), the upper light source (73) and the lower light source (74) are respectively located at upper and lower positions of the transparent carrier (6), the first optical lens (72) is arranged at the front end of the first detection camera (71) and is aimed at the side wall of the product, the end surface detection station (13) is provided with a second detection camera (81), a second optical lens (82) and a coaxial light source (83) which are coaxially distributed up and down, the coaxial light source (83) is located above the transparent carrier (6), the loading mechanism (4) is installed at the loading station (11), the unloading mechanism (5) is installed at the unloading station (14), the turntable (2) drives the transparent carrier (6) to move one station, each transparent carrier (6) is meshed with the large gear (32) through the main gear (31) through the transition gear (33) and rotates at a certain angle, when the turntable (2) rotates one circle, the transparent carrier (6) on the side wall detection station (12) drives the product to complete a 360-degree rotation; A slewing bearing (61) is provided inside the turntable (2), the outer ring of the slewing bearing (61) is fixed, the transparent carrier plate (6) is arranged at the top of the inner ring of the slewing bearing (61), and the large gear (32) is arranged at the bottom of the inner ring of the slewing bearing (61); The turntable (2) is of a hollow structure. A column (21) is provided at the center of the turntable (2). The bottom of the column (21) is fixed to the frame (1). A fixing plate (22) is provided at the top of the column (21). The fixing plate (22) is connected to an upper light source (73) via a bracket (23). Both the upper light source (73) and the lower light source (74) are annular light sources.

2. The fully automatic appearance inspection machine according to claim 1, characterized in that: The turntable power device (3) adopts a direct drive motor, a through hole is provided at the center of the direct drive motor, the column (21) passes through the through hole and its bottom is fixed to the frame (1), and the main gear (31) is provided on the top of the direct drive motor.

3. The fully automatic appearance inspection machine according to claim 2, characterized in that: The feeding mechanism (4) comprises a base (41), a feeding vibration plate (42) and a feeding manipulator (43); the base (41) is fixed on the frame (1); the feeding vibration plate (42) is arranged on the base (41); a linear feeder (44) is arranged at the outlet of the feeding vibration plate (42); a straight vibrator (45) is arranged at the bottom of the linear feeder (44); a staggering device (46) is arranged at the front end of the linear feeder (44); the staggering device (46) comprises a support frame (461), a staggering device (462), a guide rail (463) and a slider (464); the slider (464) and the guide rail are (463), both ends of the guide rail (463) are fixed to the support frame (461), one end of the support frame (461) is provided with a small cylinder (465), the other end of the support frame (461) is provided with a buffer (466), the telescopic rod of the small cylinder (465) is connected to the slider (464), the mismatching device (462) is arranged on the slider (464), the mismatching device (462) is provided with a product placement groove (4621) and a baffle (4622), the telescopic drive of the small cylinder (465) drives the product placement groove (4621) or the baffle (4622) to move to the discharge port of the linear feeder (44).

4. The fully automatic appearance inspection machine according to claim 3, characterized in that: The unloading mechanism (5) comprises a good product box (51), a defective product box (52), an unloading rotary cylinder (53) and an unloading manipulator (54); the good product box (51) and the defective product box (52) are both mounted on a frame (1); the unloading rotary cylinder (53) is arranged between the good product box (51) and the defective product box (52); and a unloading chute (55) is connected to the top of the unloading rotary cylinder (53).

5. The fully automatic appearance inspection machine according to claim 4, characterized in that: The loading robot (43) and the unloading robot (54) have the same structure, and both include a vertical rod (541), a slide cylinder (542), a lifting cylinder (543) and a finger cylinder (544). The side wall of the vertical rod (541) is connected to the slide cylinder (542) and its bottom is installed on the frame (1). The finger cylinder (544) is vertically connected to the side wall of the lifting cylinder (543). The lifting cylinder (543) is connected to the slide cylinder (542). The finger cylinder (544) of the loading robot (43) is aligned front to back with the position of the retracted product placement slot (4621), and the finger cylinder (544) of the unloading robot (54) is aligned front to back with the center of the unloading rotary cylinder (53).

6. The fully automatic appearance inspection machine according to claim 5, characterized in that: The side wall inspection station (12) and the end face inspection station (13) are both provided with a vertical plate (9), the bottom of the vertical plate (9) is mounted on the frame (1) via a first adjustment slide (91), the side wall of the vertical plate (9) of the side wall inspection station (12) is provided with a second adjustment slide (92), the first inspection camera (71) is connected to the second adjustment slide (92) via a retaining frame assembly (95), and the first optical lens (72) is aligned with the side wall of the product, the side wall of the vertical plate of the end face inspection station (13) is provided with a third adjustment slide (93), the second inspection camera (81) is connected to the third adjustment slide (93) via an L-shaped bracket (96), the coaxial light source (83) is connected to the vertical plate (9) via a fourth adjustment slide (94), and the second optical lens (82) and the coaxial light source (83) are aligned directly above the product.

7. The fully automatic appearance inspection machine according to claim 1, characterized in that: The side wall detection stations (12) are provided with five, the transparent carrier plates (6) are provided with eight, the loading station (11), the five side wall detection stations (12), the end surface detection station (13), and the unloading station (14) are evenly distributed in a counterclockwise direction relative to the center of the turntable (2), and when the turntable (2) rotates 45 degrees, the transparent carrier plate (6) rotates 72 degrees.

8. The fully automatic appearance inspection machine according to claim 1, characterized in that: The side wall detection stations (12) are provided with six, the transparent carrier plates (6) are provided with nine, the loading station (11), the six side wall detection stations (12), the end surface detection station (13), and the unloading station (14) are evenly distributed in a counterclockwise direction relative to the center of the turntable (2), and when the turntable (2) rotates 40 degrees, the transparent carrier plate (6) rotates 60 degrees.

9. The fully automatic appearance inspection machine according to claim 1, characterized in that: The side wall inspection stations (12) are provided with nine, the transparent carrier plates (6) are provided with twelve, the loading station (11), the nine side wall inspection stations (12), the end surface inspection station (13), and the unloading station (14) are evenly distributed in a counterclockwise direction relative to the center of the turntable (2), and when the turntable (2) rotates 30 degrees, the transparent carrier plate (6) rotates 40 degrees.

Images