Lens ring appearance detection equipment and detection method thereof

Abstract

The invention provides lens ring appearance detection equipment and a detection method thereof.The lens ring appearance detection equipment comprises a machine table, the machine table is provided with a feeding station, a material disc positioning station, a front face appearance detection station, a bottom face appearance detection station, a side face appearance detection station and a discharging station, the material disc positioning station is arranged on one side of the feeding station, and the material disc positioning station is arranged on the other side of the discharging station; the front surface appearance detection station is provided with a front surface appearance detection camera assembly for detecting the front surface of the product, the bottom surface appearance detection station is provided with a bottom surface appearance detection camera assembly for detecting the bottom surface of the product, and the side surface appearance detection station is provided with a side surface appearance detection camera assembly for detecting the side surface of the product. According to the invention, products can be automatically carried, appearance defects of the top surface, the bottom surface and the side surface of the products can be detected, intelligent control is carried out through the main control system, the measured data is more comprehensive, and the obtained data precision is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of appearance detection, and in particular to a lens ring appearance detection device and a detection method thereof. Background Art

[0002] Appearance inspection is a detection method mainly used to quickly identify the appearance defects of samples. The appearance inspection system is mainly used to quickly identify the appearance defects of samples, such as pits, cracks, warping, gaps, stains, sand, burrs, bubbles, uneven color, etc. The inspected samples can be transparent or opaque. In the past, product appearance inspection was generally done with the naked eye, so there is a possibility that human factors may lead to inconsistent measurement standards, and long-term inspections may lead to misjudgments due to visual fatigue. With the in-depth cooperation of computer technology and optical, mechanical, electrical and other technologies, it has the characteristics of fast and accurate detection.

[0003] Most of the existing material inspection equipment relies on a set of cameras to detect the appearance defects of the materials, which leads to incomplete material inspection and easy to produce defective products. Using multiple sets of cameras to inspect on multiple machines takes up a lot of space and requires manual loading and unloading. The inspection time is long, the production efficiency is low, and the degree of intelligent automation is not high.

[0004] There is a need for a lens ring appearance inspection device and an inspection method with a higher degree of automation and more accurate appearance inspection, which can solve the above-mentioned problems. Summary of the invention

[0005] The invention provides a lens ring appearance detection device and a detection method thereof, which solves the problem that the existing bent pipe detection equipment has a low intelligence level and the detection result is not accurate and comprehensive enough by technically transforming the existing appearance detection equipment.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A lens ring appearance inspection device comprises a machine platform, on which a loading station, a tray positioning station, a front appearance inspection station, a bottom appearance inspection station, a side appearance inspection station and a unloading station are respectively arranged, a loading trolley is placed at the loading station, trays with products placed on them are stacked on the loading trolley, a tray positioning station for positioning the tray is arranged on one side of the loading station, the front appearance inspection station is provided with a front appearance inspection camera assembly for inspecting the front of the product, the bottom appearance inspection station is provided with a bottom appearance inspection camera assembly for inspecting the bottom of the product, the side appearance inspection station is provided with a side appearance inspection camera assembly for inspecting the side of the product, a handling robot assembly for transporting trays and products is arranged on the machine platform, and the handling robot assembly is used to transport trays and products through the loading station, the tray positioning station, the front appearance inspection station, the bottom appearance inspection station, the side appearance inspection station and the unloading station in sequence.

[0008] Preferably, the handling robot assembly includes a first handling robot, a second handling robot and a third handling robot. The first handling robot is arranged at one side of the loading station. The first handling robot is used to grab the material tray of the loading station to the material tray positioning station and grab the products on the material tray to the front appearance inspection station. The second handling robot is used to carry the products of the front appearance inspection station through the bottom appearance inspection station until they are placed at the side appearance inspection station. The third handling robot is used to carry the products of the side appearance inspection station to the unloading station.

[0009] Preferably, a secondary positioning assembly is provided at the tray positioning station, and the secondary positioning assembly includes a positioning mounting seat, a sensor assembly and a push rod assembly. The positioning mounting seat is fixedly mounted on the machine platform, and a mounting position for placing the tray is provided on the positioning mounting seat. The sensor assembly and the push rod assembly are respectively installed on the outer peripheral side of the mounting position. The sensor assembly is used to identify the tray, and the push rod assembly is used to push the tray for clamping and positioning.

[0010] Preferably, a conveyor belt for transferring empty trays is provided on one side of the tray positioning station, and the output end of the conveyor belt is provided at the unloading station. The first handling robot is used to transport the empty tray to the conveyor belt, and the third handling robot is used to transport the empty tray to the unloading station.

[0011] Preferably, the front appearance inspection station is provided with a six-equally divided rotating platform, on which six product inspection carriers for placing products are evenly and fixedly installed, and the six-equally divided rotating platform is provided with a loading position, a first forward visual inspection position, a second forward visual inspection position, a third forward visual inspection position, a fourth forward visual inspection position and a unloading position in sequence according to the position of the product inspection carrier, and the front appearance inspection camera assembly includes a first forward visual inspection camera, a second forward visual inspection camera, a third forward visual inspection camera and a fourth forward visual inspection camera, the first forward visual inspection camera having a shooting direction facing the upper surface of the product on the product inspection carrier at the first forward visual inspection position, the second forward visual inspection camera having a shooting direction facing the upper surface of the product on the product inspection carrier at the second forward visual inspection position, the third forward visual inspection camera having a shooting direction facing the upper surface of the product on the product inspection carrier at the third forward visual inspection position, and the fourth forward visual inspection camera having a shooting direction facing the upper surface of the product on the product inspection carrier at the fourth forward visual inspection position.

[0012] Preferably, the first forward visual inspection camera, the second forward visual inspection camera, the third forward visual inspection camera and the fourth forward visual inspection camera are respectively provided with different focal lengths and light source components according to product inspection requirements.

[0013] Preferably, the bottom surface appearance inspection camera assembly includes a lower camera, a lower camera mounting frame and a lower camera light source. The lower camera mounting frame is fixedly mounted on the machine platform. The lower camera is vertically mounted on the lower camera mounting frame, and a lower camera light source is also mounted on the upper side of the lower camera mounting frame. The shooting direction of the lower camera lens is arranged through the lower camera light source and is directly facing the bottom surface of the product passing above.

[0014] Preferably, the side appearance inspection station is provided with a four-part rotating platform, on which four product inspection rotating carrier structures for placing products are evenly and fixedly installed, and the four-part rotating platform is provided with upper and lower material positions, a first lateral visual inspection position, a second lateral visual inspection position and a third lateral visual inspection position in sequence according to the position of the product inspection rotating carrier structure, and the side appearance inspection camera assembly includes a first lateral visual inspection camera, a second lateral visual inspection camera and a third lateral visual inspection camera, the first lateral visual inspection camera is arranged to shoot in a direction facing the side of the product on the product inspection carrier at the first lateral visual inspection position, the second lateral visual inspection camera is arranged to shoot in a direction facing the side of the product on the product inspection carrier at the second lateral visual inspection position, and the third lateral visual inspection camera is arranged to shoot in a direction facing the side of the product on the product inspection carrier at the third lateral visual inspection position.

[0015] Preferably, the product inspection rotating carrier structure includes a carrier body, a driving structure, a product seat and a linkage mechanism. The carrier body is installed on the machine platform. A plurality of parallel arranged product seat mounting slots are provided on the carrier body. The product seat is rotatably installed in the product seat mounting slot. The product is fixedly placed on the product seat. A driving structure is also installed on the carrier body. The output end of the driving structure drives the product seat to rotate synchronously through the linkage mechanism. The side appearance inspection camera assembly is arranged facing the product on the product seat.

[0016] Preferably, the unloading station is provided with a good product unloading position and a defective product unloading position, and both the good product unloading position and the defective product unloading position are provided with unloading trolleys for stacking material trays. The main control system controls the handling robot assembly to grab the products to the good product unloading position or the defective product unloading position for screening and unloading according to the detection results.

[0017] A detection method of the above lens ring appearance detection device comprises the following steps:

[0018] S1. Cart loading. The material box with the product is placed on the loading trolley. The loading trolley stops at the loading station of the machine for loading;

[0019] S2, secondary positioning of the tray: the handling robot assembly grabs the tray to the tray positioning station for secondary positioning;

[0020] S3. The product is loaded to the front appearance inspection station. The handling robot assembly grabs and transfers the product to the carrier at the turntable loading position of the six-part rotating platform of the front appearance inspection station. After the product on the tray is grabbed and emptied, the handling robot assembly transports the empty tray to the conveyor belt on one side and transfers it to the unloading station;

[0021] S4, product front appearance inspection, the six-part rotating platform rotates to make the product pass through the first positive visual inspection position, the second positive visual inspection position, the third positive visual inspection position and the fourth positive visual inspection position in turn for appearance visual inspection, obtain the product front appearance information and send it to the main control system;

[0022] S5, product bottom appearance inspection: the six-part rotating platform rotates to move the product to the unloading position, the handling robot assembly grabs the product and passes it through the bottom appearance inspection station, and the lower camera set at the bottom appearance inspection station inspects the bottom surface of the product, obtains the product bottom appearance information and sends it to the main control system;

[0023] S6, product side appearance inspection, the handling robot assembly grabs the product and places it on the product inspection rotating carrier structure of the four-divided rotating platform at the side appearance inspection station, and the four-divided rotating platform rotates to sequentially pass the product through the first lateral visual inspection position, the second lateral visual inspection position and the third lateral visual inspection position for appearance visual inspection, obtains the product side appearance information and sends it to the main control system;

[0024] S7, product unloading, the four-divided rotating platform rotates to move the product to the upper and lower material positions, and the main control system controls the handling robot assembly to grab the inspected products to the good product unloading position or the defective product unloading position of the unloading station for screening and unloading.

[0025] The beneficial effects of the present invention are:

[0026] The machine of the present invention is sequentially provided with a front appearance inspection station, a bottom appearance inspection station, and a side appearance inspection station. The front appearance inspection station is provided with multiple groups of forward visual inspection cameras with different focal lengths and light sources, which respectively detect the appearance information of different positions on the top surface of the product, and then the product is grabbed by a handling manipulator assembly through the lower camera set at the bottom appearance inspection station, and the bottom appearance information of the product is detected by the lower camera, and then it is transported to the side appearance inspection station, and the appearance information of different positions on the side of the product is detected by multiple groups of side visual inspection cameras and sent to the main control system, and the main control system controls the handling manipulator assembly to grab the product to the unloading position for screening and unloading. The present invention can automatically transport products, detect the appearance defects of the top, bottom and side surfaces of the products, and is intelligently controlled by the main control system, so that the measurement data is more comprehensive and the data acquisition accuracy is higher.

[0027] The present invention is provided with a rotating carrier structure at the inspection station, which can synchronously drive multiple products to rotate, facilitate appearance inspection of the sides of the products at different angles, and achieve higher inspection accuracy.

[0028] In addition, the present invention provides good product unloading positions and defective product unloading positions at the unloading station. The main control system controls the handling robot assembly to grab products to the good product unloading position and the defective product unloading position for screening and unloading according to the detection results, which has a higher degree of intelligence. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure of the machine from top view of the present invention;

[0030] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention;

[0031] Figure 3 It is a schematic diagram of the structure of the handling robot assembly of the present invention;

[0032] Figure 4 It is a structural schematic diagram of the secondary positioning component of the present invention;

[0033] Figure 5 It is a structural schematic diagram of the front appearance inspection station of the present invention;

[0034] Figure 6 It is a schematic diagram of the structure of the bottom appearance inspection station and the side appearance inspection station of the present invention;

[0035] Figure 7-8 It is a schematic diagram of the structure of the product detection rotating carrier of the present invention;

[0036] Fig. 9 It is a structural schematic diagram of the blanking station of the present invention;

[0037] Fig.10 It is a schematic diagram of the steps of the detection method of the present invention;

[0038] Description of the accompanying drawings: machine 1, conveyor belt 11, loading station 2, loading trolley 21, tray positioning station 3, secondary positioning assembly 31, positioning mounting seat 311, sensor assembly 312, push rod assembly 313, front appearance inspection station 4, front appearance inspection camera assembly 41, first forward visual inspection camera 411, second forward visual inspection camera 412, third forward visual inspection camera 413, fourth forward visual inspection camera 414, horizontal drive assembly 415, front camera mounting bracket 416, forward visual inspection camera 417, forward visual inspection light source 418, six-part rotating platform 42, product inspection carrier 43, bottom appearance inspection station 5, bottom appearance inspection camera assembly 51, lower camera 511, lower camera mounting bracket 512, lower camera light source 513, side appearance inspection station 6, four-equally divided rotating platform 61, product inspection rotating carrier structure 62, carrier platform body 621, driving structure 622, product seat 623, rotating wheel 6231, linkage mechanism 624, belt 6241, guide wheel assembly 6242, pulley tension adjustment assembly 625, first lateral visual inspection camera 63, second lateral visual inspection camera 64, third lateral visual inspection camera 65, unloading station 7, good product unloading position 71, defective product unloading position 72, handling robot assembly 8, first handling robot 81, second handling robot 82, third handling robot 83, material tray 9. DETAILED DESCRIPTION

[0039] The specific contents of the present invention are described in detail below with reference to the accompanying drawings and embodiments.

[0040] See also Figure 1-10As shown, the present invention provides a lens ring appearance inspection device, including a machine platform 1, on which a loading station 2, a tray positioning station 3, a front appearance inspection station 4, a bottom appearance inspection station 5, a side appearance inspection station 6 and a unloading station 7 are respectively arranged, a loading trolley 21 is placed at the loading station 2, and a tray 9 with products placed on it is stacked on the loading trolley 21, a tray positioning station 3 for positioning the tray is arranged on one side of the loading station 2, and the front appearance inspection station 4 is provided with a side for inspecting the front of the product. A front appearance inspection camera assembly 41 is provided, the bottom appearance inspection station 5 is provided with a bottom appearance inspection camera assembly 51 for inspecting the bottom of the product, the side appearance inspection station 6 is provided with a side appearance inspection camera assembly for inspecting the side of the product, and a handling robot assembly 8 for transporting material trays and products is provided on the machine 1. The handling robot assembly 8 is used to transport the material trays and products through the loading station 2, the material tray positioning station 3, the front appearance inspection station 4, the bottom appearance inspection station 5, the side appearance inspection station 6 and the unloading station 7 in sequence.

[0041] Furthermore, the handling robot assembly 8 includes a first handling robot 81, a second handling robot 82 and a third handling robot 83. The first handling robot 81 is arranged on one side of the loading station 2. The first handling robot 81 is used to grab the material tray of the loading station 2 to the material tray positioning station 3 and grab the product on the material tray to the front appearance inspection station 4. The second handling robot 82 is used to transport the product of the front appearance inspection station 4 through the bottom appearance inspection station 5 until it is placed at the side appearance inspection station 6. The third handling robot 83 is used to transport the product of the side appearance inspection station 6 to the unloading station 7.

[0042] The transport robot assembly 8 includes a transport drive assembly 84, a tray grabbing mechanism 85 and a product grabbing mechanism 86. The output end of the transport drive assembly 84 is respectively equipped with a tray grabbing mechanism 85 and a product grabbing mechanism 86. The transport drive assembly 84, the tray grabbing mechanism 85 and the product grabbing mechanism 86 are electrically connected to the main control system. The tray grabbing mechanism 85 is used to control the grabbing of the tray for transfer, and the product grabbing mechanism 86 is used to control the grabbing of the product. The product grabbing mechanism 86 is provided with a plurality of pneumatic clamps, and each start clamp can be controlled separately by the main control system.

[0043] Furthermore, a secondary positioning component 31 is provided at the tray positioning station 3, and the secondary positioning component includes a positioning mounting seat 311, a sensor component 312 and a push rod component 313. The positioning mounting seat 311 is fixedly mounted on the machine 1, and a mounting position for placing the tray is provided on the positioning mounting seat 11, and a sensor component 312 and a push rod component 313 are respectively installed on the outer peripheral side of the mounting position. The sensor component 312 is used to identify the tray, and the push rod component 313 is used to push the tray for clamping and positioning.

[0044] Furthermore, a conveyor belt 11 for transferring empty trays 9 is provided on one side of the tray positioning station 3, and the output end of the conveyor belt 11 is provided at the unloading station 7, the first handling robot 81 is used to transport the empty tray to the conveyor belt 11, and the third handling robot 83 is used to transport the empty tray to the unloading station 7.

[0045] Furthermore, the front appearance inspection station 4 is provided with a six-part rotating platform 42, and six product inspection carriers 43 for placing products are evenly spaced and fixedly installed on the six-part rotating platform 42. A loading position, a first forward visual inspection position, a second forward visual inspection position, a third forward visual inspection position, a fourth forward visual inspection position and a unloading position are sequentially arranged on the six-part rotating platform 42 according to the position of the product inspection carrier 43. The front appearance inspection camera assembly 41 includes a first forward visual inspection camera 411411, a second forward visual inspection camera 412, a third forward visual inspection camera 413 and a fourth forward visual inspection camera 414. The visual inspection camera 414, the first forward visual inspection camera 411 is arranged in a shooting direction facing the upper surface of the product on the product inspection carrier 43 at the first forward visual inspection position, the second forward visual inspection camera 412 is arranged in a shooting direction facing the upper surface of the product on the product inspection carrier 43 at the second forward visual inspection position, the third forward visual inspection camera 413 is arranged in a shooting direction facing the upper surface of the product on the product inspection carrier 43 at the third forward visual inspection position, and the fourth forward visual inspection camera 414 is arranged in a shooting direction facing the upper surface of the product on the product inspection carrier 43 at the fourth forward visual inspection position.

[0046] A plurality of products are placed in a row on the product inspection carrier 43, so that appearance inspection of a plurality of products can be performed simultaneously, thereby improving production efficiency.

[0047] The front appearance inspection camera assembly 41 includes a horizontal driving assembly 415, a front camera mounting frame 416, a forward visual inspection camera 417 and a forward visual inspection light source 418. The horizontal driving assembly 415 is installed on the machine 1, and the output end of the horizontal driving assembly 415 is installed with a front camera mounting frame 416, and the front camera mounting frame 416 is installed with a forward visual inspection camera 417 and a forward visual inspection light source 418. The forward visual inspection camera 417 and the forward visual inspection light source 418 are arranged above the product inspection carrier 43, and the shooting direction of the forward visual inspection camera 417 passes through the forward visual inspection light source 418 and is arranged directly facing the product below. The forward visual inspection camera 417 is driven to move in the horizontal direction by the horizontal driving assembly 415, so as to facilitate the appearance inspection of different products on the product inspection carrier 43.

[0048] Furthermore, the first forward visual inspection camera 411 , the second forward visual inspection camera 412 , the third forward visual inspection camera 413 and the fourth forward visual inspection camera 414 are respectively provided with different focal lengths and light source components according to product inspection requirements.

[0049] Furthermore, the bottom surface appearance inspection camera assembly 51 includes a lower camera 511, a lower camera 511 mounting frame and a lower camera 511 light source. The lower camera 511 mounting frame is fixedly installed on the machine 1. The lower camera 511 is vertically installed on the lower camera 511 mounting frame, and the lower camera 511 light source is also installed on the upper side of the lower camera 511 mounting frame. The shooting direction of the lower camera 511 lens is set through the lower camera 511 light source and is directly facing the bottom surface of the product passing above.

[0050] Furthermore, the side appearance inspection station 6 is provided with a four-part rotating platform 61, on which four product inspection rotating carrier structures 62 for placing products are evenly spaced and fixedly installed, and the four-part rotating platform 61 is provided with upper and lower material positions, a first lateral visual inspection position, a second lateral visual inspection position and a third lateral visual inspection position in sequence according to the position of the product inspection rotating carrier structure 62, and the side appearance inspection camera assembly includes a first lateral visual inspection camera 63, a second lateral visual inspection camera 64 and a third lateral visual inspection camera 65, the first lateral visual inspection camera 63 is set in a shooting direction facing the product side of the product inspection carrier 43 at the first lateral visual inspection position, the second lateral visual inspection camera 64 is set in a shooting direction facing the product side of the product inspection carrier 43 at the second lateral visual inspection position, and the third lateral visual inspection camera 65 is set in a shooting direction facing the product side of the product inspection carrier 43 at the third lateral visual inspection position.

[0051] Furthermore, the product inspection rotating carrier structure 62 includes a carrier body 621, a driving structure 622, a product seat 623 and a linkage mechanism 624. The carrier body 621 is installed on the machine 1. The carrier body 621 is provided with a plurality of product seat installation slots arranged in parallel. The product seat 623 is rotatably installed in the product seat installation slot. The product is fixedly placed on the product seat 623. A driving structure 622 is also installed on the carrier body 621. The output end of the driving structure 622 drives the product seat 623 to rotate synchronously through the linkage mechanism 624. The side appearance inspection camera assembly is arranged facing the product on the product seat 623.

[0052] The linkage mechanism 624 includes a belt 6241 and a guide wheel assembly 6242, the driving structure 622 includes a driving motor, the lower end of the product seat 623 passes through the carrier body 621 and is connected to a rotating wheel 6231, the belt 6241 is sleeved on the output end of the driving motor and the outer side of the rotating wheel 6231, and the guide wheel assembly 6242 is installed between adjacent rotating wheels 6231, the belt 6241 is arranged between the guide wheel assembly 6242 and the rotating wheel 6231 so that the belt 6241 is arranged close to the outer side of the rotating wheel 6231.

[0053] The bottom surface of the carrier body 621 is located between the driving structure 622 and the rotating wheel, and a pulley tension adjustment component 625 is installed. The pulley tension adjustment component 625 has two groups, and the pulley tension adjustment components are respectively arranged on the left and right outer sides of the belt and are set in conflict with the belt.

[0054] The pulley tension adjustment assembly 625 includes an adjusting wheel and an adjusting bolt. Horizontal adjustment slots are provided on both sides of the bottom surface of the carrier body 621. Adjustment bolts are fixedly installed in the adjustment slots. An adjusting wheel is installed at the bottom of the adjusting bolts. The belt 6241 is abutted between the adjusting wheels on both sides, and the adjusting wheel is fixed at different positions in the adjustment slots by adjusting bolts.

[0055] Furthermore, the unloading station 7 is provided with a good product unloading position 71 and a defective product unloading position 72, and both the good product unloading position 71 and the defective product unloading position 72 are provided with unloading trolleys for stacking material trays. The main control system controls the handling robot assembly 8 to grab the products to the good product unloading position 71 or the defective product unloading position 72 for screening and unloading according to the detection results.

[0056] like Fig.10 As shown, the detection method of the lens ring appearance detection device comprises the following steps:

[0057] S1. Cart loading. The material box with the product is placed on the loading trolley. The loading trolley stops at the loading station of the machine for loading;

[0058] S2, secondary positioning of the tray: the handling robot assembly grabs the tray to the tray positioning station for secondary positioning;

[0059] S3. The product is loaded to the front appearance inspection station. The handling robot assembly grabs and transfers the product to the carrier at the turntable loading position of the six-part rotating platform of the front appearance inspection station. After the product on the tray is grabbed and emptied, the handling robot assembly transports the empty tray to the conveyor belt on one side and transfers it to the unloading station;

[0060] S4, product front appearance inspection, the six-part rotating platform rotates to make the product pass through the first positive visual inspection position, the second positive visual inspection position, the third positive visual inspection position and the fourth positive visual inspection position in turn for appearance visual inspection, obtain the product front appearance information and send it to the main control system;

[0061] S5, product bottom appearance inspection: the six-part rotating platform rotates to move the product to the unloading position, the handling robot assembly grabs the product and passes it through the bottom appearance inspection station, and the lower camera set at the bottom appearance inspection station inspects the bottom surface of the product, obtains the product bottom appearance information and sends it to the main control system;

[0062] S6, product side appearance inspection, the handling robot assembly grabs the product and places it on the product inspection rotating carrier structure of the four-divided rotating platform at the side appearance inspection station, and the four-divided rotating platform rotates to sequentially pass the product through the first lateral visual inspection position, the second lateral visual inspection position and the third lateral visual inspection position for appearance visual inspection, obtains the product side appearance information and sends it to the main control system;

[0063] S7, product unloading, the four-divided rotating platform rotates to move the product to the upper and lower material positions, and the main control system controls the handling robot assembly to grab the inspected products to the good product unloading position or the defective product unloading position of the unloading station for screening and unloading.

[0064] The machine of the present application is provided with a front appearance inspection station, a bottom appearance inspection station, and a side appearance inspection station in sequence. The front appearance inspection station is provided with multiple groups of forward visual inspection cameras with different focal lengths and light sources, which respectively detect the appearance information of different positions on the top surface of the product, and then the product is grabbed by the handling manipulator assembly through the lower camera set at the bottom appearance inspection station, and the bottom appearance information of the product is detected by the lower camera, and then it is transported to the side appearance inspection station, and the appearance information of different positions on the side of the product is detected by multiple groups of side visual inspection cameras and sent to the main control system, and the main control system controls the handling manipulator assembly to grab the product to the unloading position for screening and unloading. The present invention can automatically transport products, detect the appearance defects of the top, bottom and side surfaces of the products, and is intelligently controlled by the main control system, so that the measurement data is more comprehensive and the data acquisition accuracy is higher.

[0065] The present application provides a rotating carrier structure at the inspection station, which can synchronously drive multiple products to rotate, facilitate appearance inspection of the product from different angles and sides, and achieve higher inspection accuracy.

[0066] In addition, the present application sets good product unloading positions and defective product unloading positions at the unloading station. The main control system controls the handling robot assembly to grab the products to the good product unloading position and the defective product unloading position for screening and unloading according to the detection results, which has a higher degree of intelligence.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

[0068] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0069] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A lens ring appearance detection device, characterized in that: The invention comprises a machine platform, on which a loading station, a tray positioning station, a front appearance inspection station, a bottom appearance inspection station, a side appearance inspection station and a unloading station are respectively arranged; a loading trolley is placed at the loading station, on which trays with products are stacked; a tray positioning station for positioning the tray is arranged on one side of the loading station; the front appearance inspection station is provided with a front appearance inspection camera assembly for inspecting the front of the product; the bottom appearance inspection station is provided with a bottom appearance inspection camera assembly for inspecting the bottom of the product; the side appearance inspection station is provided with a side appearance inspection camera assembly for inspecting the side of the product; a handling robot assembly for transporting trays and products is arranged on the machine platform, and the handling robot assembly is used for transporting trays and products through the loading station, the tray positioning station, the front appearance inspection station, the bottom appearance inspection station, the side appearance inspection station and the unloading station in sequence.

2. The lens ring appearance detection device according to claim 1, characterized in that: The handling robot assembly includes a first handling robot, a second handling robot and a third handling robot. The first handling robot is arranged at one side of the loading station. The first handling robot is used to grab the material tray of the loading station to the material tray positioning station and grab the products on the material tray to the front appearance inspection station. The second handling robot is used to carry the products of the front appearance inspection station through the bottom appearance inspection station until they are placed at the side appearance inspection station. The third handling robot is used to carry the products of the side appearance inspection station to the unloading station.

3. The lens ring appearance detection device according to claim 1, characterized in that: A secondary positioning assembly is provided at the tray positioning station, and the secondary positioning assembly includes a positioning mounting seat, a sensor assembly and a push rod assembly. The positioning mounting seat is fixedly mounted on the machine platform, and a mounting position for placing the tray is provided on the positioning mounting seat. The sensor assembly and the push rod assembly are respectively installed on the outer peripheral side of the mounting position. The sensor assembly is used to identify the tray, and the push rod assembly is used to push the tray for clamping and positioning.

4. The lens ring appearance detection device according to claim 3, characterized in that: A conveyor belt for transferring empty trays is arranged on one side of the tray positioning station, and the output end of the conveyor belt is arranged at the unloading station. The first handling robot is used to transport the empty tray to the conveyor belt, and the third handling robot is used to transport the empty tray to the unloading station.

5. The lens ring appearance detection device according to claim 1, characterized in that: The front appearance inspection station is provided with a six-part rotating platform, on which six product inspection carriers for placing products are evenly and fixedly installed, and the six-part rotating platform is provided with a loading position, a first forward visual inspection position, a second forward visual inspection position, a third forward visual inspection position, a fourth forward visual inspection position and a unloading position in sequence according to the position of the product inspection carrier. The front appearance inspection camera assembly includes a first forward visual inspection camera, a second forward visual inspection camera, a third forward visual inspection camera and a fourth forward visual inspection camera. The shooting direction of the first forward visual inspection camera is arranged facing the upper surface of the product on the product inspection carrier at the first forward visual inspection position, the shooting direction of the second forward visual inspection camera is arranged facing the upper surface of the product on the product inspection carrier at the second forward visual inspection position, the shooting direction of the third forward visual inspection camera is arranged facing the upper surface of the product on the product inspection carrier at the third forward visual inspection position, and the shooting direction of the fourth forward visual inspection camera is arranged facing the upper surface of the product on the product inspection carrier at the fourth forward visual inspection position; The first forward visual inspection camera, the second forward visual inspection camera, the third forward visual inspection camera and the fourth forward visual inspection camera are respectively provided with different focal lengths and light source components according to product inspection requirements.

6. The lens ring appearance detection device according to claim 1, characterized in that: The bottom surface appearance inspection camera assembly includes a lower camera, a lower camera mounting frame and a lower camera light source. The lower camera mounting frame is fixedly mounted on the machine platform. The lower camera is vertically mounted on the lower camera mounting frame, and a lower camera light source is also mounted on the upper side of the lower camera mounting frame. The shooting direction of the lower camera lens is set through the lower camera light source and faces the bottom surface of the product passing above.

7. The lens ring appearance detection device according to claim 1, characterized in that: The side appearance inspection station is provided with a four-part rotating platform, on which four product inspection rotating carrier structures for placing products are evenly and fixedly installed, and the four-part rotating platform is provided with upper and lower material positions, a first lateral visual inspection position, a second lateral visual inspection position and a third lateral visual inspection position in sequence according to the position of the product inspection rotating carrier structure, and the side appearance inspection camera assembly includes a first lateral visual inspection camera, a second lateral visual inspection camera and a third lateral visual inspection camera, the first lateral visual inspection camera is arranged to shoot in a direction facing the side of the product on the product inspection carrier at the first lateral visual inspection position, the second lateral visual inspection camera is arranged to shoot in a direction facing the side of the product on the product inspection carrier at the second lateral visual inspection position, and the third lateral visual inspection camera is arranged to shoot in a direction facing the side of the product on the product inspection carrier at the third lateral visual inspection position.

8. The lens ring appearance detection device according to claim 7, characterized in that: The product inspection rotating carrier structure includes a carrier body, a driving structure, a product seat and a linkage mechanism. The carrier body is installed on the machine platform. A plurality of parallel arranged product seat installation slots are provided on the carrier body. The product seat is rotatably installed in the product seat installation slot. The product is fixedly placed on the product seat. A driving structure is also installed on the carrier body. The output end of the driving structure drives the product seat to rotate synchronously through the linkage mechanism. The side appearance inspection camera assembly is arranged facing the product on the product seat.

9. The lens ring appearance detection device according to claim 1, characterized in that: The unloading station is provided with a good product unloading position and a defective product unloading position, and both the good product unloading position and the defective product unloading position are provided with unloading trolleys for stacking material trays. The main control system controls the handling robot assembly to grab the products to the good product unloading position or the defective product unloading position for screening and unloading according to the detection results.

10. A detection method of a lens ring appearance detection device as claimed in any one of claims 1 to 9, comprising the following steps: S1. Cart loading. The material box with the product is placed on the loading trolley. The loading trolley stops at the loading station of the machine for loading; S2, secondary positioning of the tray: the handling robot assembly grabs the tray to the tray positioning station for secondary positioning; S3. The product is loaded to the front appearance inspection station. The handling robot assembly grabs and transfers the product to the carrier at the turntable loading position of the six-part rotating platform of the front appearance inspection station. After the product on the tray is grabbed and emptied, the handling robot assembly moves the empty tray to the conveyor belt on one side and transfers it to the unloading station. S4, product front appearance inspection, the six-part rotating platform rotates to make the product pass through the first positive visual inspection position, the second positive visual inspection position, the third positive visual inspection position and the fourth positive visual inspection position in turn for appearance visual inspection, obtain the product front appearance information and send it to the main control system; S5, product bottom appearance inspection: the six-part rotating platform rotates to move the product to the unloading position, the handling robot assembly grabs the product and passes it through the bottom appearance inspection station, and the lower camera set at the bottom appearance inspection station inspects the bottom surface of the product, obtains the product bottom appearance information and sends it to the main control system; S6, product side appearance inspection, the handling robot assembly grabs the product and places it on the product inspection rotating carrier structure of the four-divided rotating platform at the side appearance inspection station, and the four-divided rotating platform rotates to sequentially pass the product through the first lateral visual inspection position, the second lateral visual inspection position and the third lateral visual inspection position for appearance visual inspection, obtains the product side appearance information and sends it to the main control system; S7, product unloading, the four-divided rotating platform rotates to move the product to the upper and lower material positions, and the main control system controls the handling robot assembly to grab the inspected products to the good product unloading position or the defective product unloading position of the unloading station for screening and unloading.

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