PAD back shell appearance detection device

Abstract

The utility model relates to an appearance detection device for a PAD back shell. The appearance detection device comprises a feeding and cleaning machine, an AOI detection machine and a discharging machine, the feeding machine comprises a feeding flow channel assembly, a large face cleaning assembly, a carrying assembly, a side face and R angle cleaning assembly and an overturning assembly. The AOI detection machine comprises a feeding carrying assembly, a three-rotor carrying assembly, a system plane detection assembly, a side face and R angle detection assembly and a user plane detection assembly. The three-rotor carrying assembly comprises a first rotor carrying assembly, a second rotor carrying assembly and a third rotor carrying assembly. The cleaning machine is arranged in the device, so that large surfaces, side surfaces and R angles of products can be cleaned, and the detection rate of the products is ensured; the detection equipment comprises system surface detection and side surface amp; r angle detection and user plane detection are carried out, and each visual detection assembly comprises a plurality of groups of cameras and is used for carrying out omnibearing detection on six surfaces of a product; product smudginess can be reduced, and interference of smudginess on visual inspection is reduced; and the standardization of the machine is realized, the production cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of visual inspection technology, and in particular to a device for inspecting the appearance of a PAD back cover. Background Technology

[0002] Existing PAD (Panel Optical Surface) appearance inspection equipment on the market has insufficient product defect coverage. It can only complete appearance inspection on one side, or sometimes only a small area. Undetected defects require manual inspection, which impacts product yield and production efficiency, wastes manpower, and increases costs. Furthermore, the equipment lacks corresponding abortion-driven mechanisms, making multi-faceted product inspection impossible.

[0003] In addition, most cleaning machines are for large-area cleaning and do not include side cleaning mechanisms. The cleaning approach is mainly based on alcohol cleaning, with wet wiping followed by dry wiping. The internal structure mainly includes a cloth rolling mechanism, a cleaning mechanism, a transfer mechanism, and a transfer mechanism. The working process is as follows: alcohol spray - product moves to under the wet wiping head - the grinding head completes the wet wiping - transfer to the dry wiping fixture - product moves to under the dry wiping head - the grinding head completes the dry wiping - product unloading.

[0004] Therefore, existing technologies can only meet one production need, and cannot adapt to new testing requirements. Furthermore, the large variety of machine types hinders standardization and modularization, leading to higher costs. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a PAD back cover appearance inspection device, which inspects the appearance of the PAD back cover, includes cleaning and inspection, and the inspection covers all surfaces of the product.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a PAD back shell appearance inspection device, including a feeding and cleaning machine, an AOI inspection machine, and a discharging machine; the feeding machine includes a feeding channel assembly, a large surface cleaning assembly, a conveying assembly, a side and round corner cleaning assembly, and a flipping assembly; the large surface cleaning assembly and the side and round corner cleaning assembly are arranged side by side, and the conveying assembly is arranged on the same side of the large surface cleaning assembly and the side and round corner cleaning assembly; the product to be cleaned is transported from the large surface cleaning assembly to the side and round corner cleaning assembly through the conveying assembly in a "C" shaped path for cleaning; the feeding channel assembly is arranged in front of the large surface cleaning assembly, and the flipping assembly is arranged in the rear of the side and round corner cleaning assembly;

[0007] The AOI inspection machine includes a loading and transporting assembly, a three-movement transporting assembly, a system surface inspection assembly, a side and radius corner inspection assembly, and a user surface inspection assembly. The loading and transporting assembly transports the cleaned product to the system surface inspection assembly for system surface visual inspection. The three-movement transporting assembly includes a first-movement transporting assembly, a second-movement transporting assembly, and a third-movement transporting assembly. The first-movement transporting assembly transports the product to the side and radius corner inspection assembly for inspection. The second-movement transporting assembly transports the product to the user surface inspection assembly for inspection. The third-movement transporting assembly transports the product to the unloading machine for unloading.

[0008] Furthermore, the large-area cleaning assembly of this utility model includes a large-area cleaning grinding head assembly and a cloth rolling mechanism; the large-area cleaning grinding head assembly includes a grinding head mounting plate, and a large-body cleaning grinding head is provided at the bottom of the grinding head mounting plate; the grinding head mounting plate has an opening, and a logo cleaning grinding head is provided in the opening, and a camera cleaning grinding head is also provided on one side of the mounting plate; the logo cleaning grinding head and the camera cleaning grinding head are respectively connected to a lifting assembly; during large-area wet wiping, the logo cleaning grinding head and the camera cleaning grinding head are raised by the lifting assembly to avoid each other.

[0009] Furthermore, the side and R-angle cleaning assembly of this utility model includes a cloth rolling mechanism and a side cleaning grinding head assembly; the side cleaning grinding head assembly includes a fixing plate, on which a side cleaning grinding head is disposed; the side cleaning grinding head is a long strip with a groove; an alcohol spray nozzle is also disposed on the fixing plate; the alcohol spray nozzle is set at the same height as the side cleaning grinding head, and an alcohol tank is also disposed on the fixing plate below the alcohol spray nozzle and the side cleaning grinding head.

[0010] Furthermore, the flipping assembly of this utility model includes a lifting Z-axis and a flipping arm disposed on the lifting Z-axis. The flipping arm is provided with a connecting block. Both ends of the connecting block are provided with waist grooves, and a vacuum suction cup is connected to the waist groove through a threaded rod. The threaded rod is provided with a bidirectional nut, and the threaded rod is locked to the connecting block through the bidirectional nut.

[0011] Furthermore, the system surface inspection component of this utility model includes a speaker inspection module, an inner sidewall inspection module, and a rear 16K coaxial inspection module; the speaker inspection module, the inner sidewall inspection module, and the rear 16K coaxial inspection module are respectively mounted on the corresponding inspection stations of the machine tool via brackets.

[0012] Furthermore, the side and R-corner detection assembly of this utility model includes an upper and lower edge detection module, a camera detection module, a side line scan detection module, and an R-corner detection module; the upper and lower edge detection module, the camera detection module, the side line scan detection module, and the R-corner detection module are respectively set on the corresponding detection stations of the machine.

[0013] Furthermore, the user face detection component of this utility model includes a stress mark detection module, a 16k time-sharing detection module, a LOGO detection module, and a 4K-LOGO detection module, which are respectively set on the corresponding detection stations of the machine.

[0014] Furthermore, the feeding machine of this utility model includes a feeding channel assembly, a feeding robot assembly, and a material tray circulation assembly; the feeding robot assembly places the product on the feeding channel assembly into the material tray circulation assembly.

[0015] Furthermore, the cleaning method of the large-area cleaning component of this utility model is as follows: first, the lint-free cloth is soaked, and then the large surface of the product is wet-wiped while the logo and camera are avoided; then the large surface of the product is dry-wiped, and finally it is moved to the unloading position to wait for handling and picking.

[0016] Furthermore, the cleaning method of the side and R-corner cleaning assembly described in this utility model is as follows: the product is moved to the side cleaning carrier by the transport assembly, the long side of the product is wetted and then dry-wiped after the lint-free cloth is soaked, the grinding head is then retracted, the product is rotated, the grinding head is then extended to wet-wipe the two R-corners, and then dry-wipe the R-corners, the grinding head is then retracted again, the product is rotated, the grinding head is then extended again to wet-wipe the short side, and then dry-wipe the short side, the grinding head is then retracted again, the product is rotated again, the grinding head is then extended again to wet-wipe the R-corners, and then dry-wipe the R-corners, and finally the product is moved to the flipping and picking position to wait for the lifting and flipping to pick up the product.

[0017] The beneficial effects of this utility model are that it solves the defects existing in the background technology. This device contains a cleaning machine, which can clean the main surface, sides and round corners of the product, ensuring the product inspection rate. The product is transferred through a flipping mechanism, a three-movement conveying mechanism and a linear motor inspection fixture. The inspection equipment includes system surface inspection, side & round corner inspection and user surface inspection. Each vision inspection component contains multiple sets of cameras to inspect all six sides of the product. It can not only reduce product dirt and reduce the interference of dirt on vision inspection, but also realize the standardization of the machine, reduce production costs and improve production efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the feeding and cleaning machine of this utility model;

[0020] Figure 3 yes Figure 2 Top view;

[0021] Figure 4 This is a schematic diagram of the structure of the feeding channel assembly of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the large-area cleaning component of this utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the handling component of this utility model;

[0024] Figure 7 This is a schematic diagram of the side and R-corner cleaning assembly of this utility model;

[0025] Figure 8 This is a schematic diagram of the structure of the flipping component of this utility model;

[0026] Figure 9 This is a schematic diagram of the structure of the first cleaning and transplanting module of this utility model;

[0027] Figure 10 This is a schematic diagram of the structure of the second cleaning and transplanting mold of this utility model;

[0028] Figure 11 This is a schematic diagram of the structure of the material handling robot of this utility model;

[0029] Figure 12 This is a schematic diagram of the structure of the large-area cleaning grinding head assembly of this utility model;

[0030] Figure 13 This is a schematic diagram of the structure of the side cleaning grinding head assembly of this utility model;

[0031] Figure 14 This is a schematic diagram of the structure of the AOI inspection machine of this utility model;

[0032] Figure 15 This is a schematic diagram of the structure of the three-moving-element transport assembly of this utility model;

[0033] Figure 16 This is a schematic diagram of the structure of the surface detection component of the system of this utility model;

[0034] Figure 17 This is a schematic diagram of the side and radius angle detection component of this utility model;

[0035] Figure 18 This is a schematic diagram of the user face detection component of this utility model;

[0036] Figure 19 This is a schematic diagram of the structure of the feeding machine of this utility model;

[0037] In the diagram: 1. Feeding and cleaning machine; 2. AOI inspection machine; 3. Unloading machine;

[0038] 1-1. Feeding channel assembly; 1-2. Large surface cleaning assembly; 1-3. Handling assembly; 1-4. Side and round corner cleaning assembly; 1-5. Flipping assembly; 1-6. First cleaning and transfer module; 1-7. Second cleaning and transfer module; 1-8. Material handling robot; 1-9. Vision guidance assembly;

[0039] 1-11. Belt conveyor; 1-12. Side guard; 1-13. Material arrival sensor photoelectric sensor; 1-14. Stop block;

[0040] 1-21. Large surface cleaning grinding head assembly; 1-22. Cloth rolling mechanism; 1-23. Mounting plate; 1-24. Large body cleaning grinding head; 1-25. Opening; 1-26. Logo cleaning grinding head; 1-27. Camera cleaning grinding head; 1-28. Lifting assembly;

[0041] 1-31. Transport bracket; 1-32. Transport X-axis; 1-33. Transport Z-axis;

[0042] 1-41. Side cleaning grinding head assembly; 1-42. Fixing plate; 1-43. Side cleaning grinding head; 1-44. Groove; 1-45. Alcohol nozzle; 1-46. Alcohol tank; 1-47. Pressure sensor;

[0043] 1-51. Lifting Z-axis; 1-52. Tilting arm; 1-53. Connecting block; 1-54. Waist groove; 1-55. Threaded rod; 1-56. Vacuum suction cup; 1-57. Two-way nut;

[0044] 1-61. Linear guide rail for large-area cleaning; 1-62. Vacuum adsorption fixture;

[0045] 1-71. Clean the linear guide rails from the sides and R-angles;

[0046] 2-1. Material handling assembly; 2-2. Three-wheeled handling assembly; 2-3. System surface inspection assembly; 2-4. Side and radius inspection assembly; 2-5. User side inspection assembly;

[0047] 2-21. First moving part transport assembly; 2-22. Second moving part transport assembly; 2-23. Third moving part transport assembly;

[0048] 2-31, Speaker testing module; 2-32, Inner sidewall testing module; 2-33, Rear 16K coaxial testing module;

[0049] 2-41. Top and bottom edge detection module; 2-42. Camera detection module; 2-43. Side line scan detection module; 2-44. Round corner detection module;

[0050] 2-51. Stress Indentation Detection Module; 2-52. 16k Time-Division Detection Module; 2-53. Logo Detection Module; 2-54. 4K-Logo Detection Module;

[0051] 3-1. Material feeding channel assembly; 3-2. Material feeding robot assembly; 3-3. Material tray circulation assembly. Detailed Implementation

[0052] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0053] like Figures 1-19 The device shown is a PAD back cover appearance inspection device, including a feeding and cleaning machine, an AOI inspection machine, and a unloading machine.

[0054] like Figures 2-13 As shown, the feeding and cleaning machine includes a feeding channel assembly 1-1, a large-area cleaning assembly 1-2, a conveying assembly 1-3, a side and round-corner cleaning assembly 1-4, a flipping assembly 1-5, a first cleaning and transfer module 1-6, a second cleaning and transfer module 1-7, a picking robot 1-8, and a vision guidance assembly 1-9. The entire assembly structure is arranged in a "C" shape, with the following components assembled sequentially: feeding channel assembly, large-area cleaning assembly, conveying assembly, side and round-corner cleaning assembly, and flipping assembly. The large-area cleaning assembly and the side and round-corner cleaning assembly are arranged side by side. The conveying assembly is located on the same side as the large-area cleaning assembly and the side and round-corner cleaning assembly. The product to be cleaned is transported from the large-area cleaning assembly to the side and round-corner cleaning assembly via the conveying assembly in a "C" shaped path. The feeding channel assembly is located in front of the large-area cleaning assembly and is responsible for feeding the product and transferring it to the picking position of the robot. The flipping assembly is located behind the side and round-corner cleaning assembly and is responsible for flipping the product over, awaiting AOI (Automated Guided Inspection) unloading.

[0055] The feeding channel assembly 1-1 includes a belt conveyor 1-11; side guards 1-12 are provided on both sides of the belt conveyor; and a material arrival sensor 1-13 and a stop 1-14 are provided at the end of the belt conveyor. The product begins feeding through the belt conveyor and touches the stop at the end of the conveyor, triggering the material arrival sensor. A robotic arm is positioned above the belt conveyor. After the product arrives, the material arrival sensor sends a picking signal, and the control system causes the robotic arm to vacuum-adsorb the product to be cleaned, flip it, and feed it into the large-area cleaning assembly. The side guards on both sides of the belt conveyor provide good guidance and prevent product deviation during feeding.

[0056] Below the large surface cleaning component 1-2, a first cleaning and transfer module 1-6 is provided. The first cleaning and transfer module includes a large surface cleaning linear slide rail 1-61 and a vacuum adsorption fixture 1-62 set on the large surface cleaning linear slide rail. The picking robot places the product on the vacuum adsorption fixture, and the product is sent to the large surface cleaning component through the large surface cleaning linear slide rail to start cleaning.

[0057] The large-area cleaning assembly 1-2 includes a large-area cleaning grinding head assembly 1-21 and a cloth rolling mechanism 1-22. The large-area cleaning grinding head assembly includes a grinding head mounting plate 1-23, with a large-body cleaning grinding head 1-24 positioned at the bottom of the mounting plate. The mounting plate has an opening 1-25, within which a logo cleaning grinding head 1-26 is positioned. A camera cleaning grinding head 1-27 is also positioned on one side of the mounting plate. The logo cleaning grinding head and the camera cleaning grinding head are respectively connected to lifting components 1-28. During wet cleaning of the large area, the logo cleaning grinding head and the camera cleaning grinding head rise via the lifting components to avoid contact with the product. The grinding head is divided into three parts: a logo cleaning grinding head, a camera cleaning grinding head, and a large-body cleaning grinding head. These three parts can extend and retract independently, ensuring that the logo cleaning grinding head and the camera cleaning grinding head do not contact the product during wet cleaning. This effectively prevents damage to the logo and camera from the cleaning fluid and further improves the cleaning effect.

[0058] The transport assembly 1-3 includes a transport bracket 1-31, on which a transport X-axis 1-32 and a transport Z-axis 1-33 are provided; the transport Z-axis transports the product from the large surface cleaning assembly to the side and R-corner cleaning assembly through vacuum adsorption.

[0059] The side and corner cleaning components 1-4 include two sets, and a second cleaning and transfer module 1-7 is arranged between the two sets of side and corner cleaning components; the second cleaning and transfer module includes a side and corner cleaning linear slide rail and a vacuum adsorption fixture arranged on the side and corner cleaning linear slide rail; the product to be cleaned is placed on the vacuum adsorption fixture and transferred by the corner cleaning linear slide rail.

[0060] The side and round-corner cleaning assembly 1-4 includes a cloth rolling mechanism and a side cleaning grinding head assembly 1-41. The side cleaning grinding head assembly includes a fixing plate 1-42, on which a side cleaning grinding head 1-43 is mounted. The side cleaning grinding head is a long strip with grooves 1-44. During cleaning, the sides and round-corners of the product can be embedded in the grooves, ensuring more thorough cleaning. An alcohol spray nozzle 1-45 is also mounted on the fixing plate. The side cleaning grinding head can be multi-segmented, so the alcohol spray nozzle can be positioned between the segments. The alcohol spray nozzle is cylindrical, with small openings evenly spaced on its surface for alcohol spraying. The alcohol spray nozzle is positioned at the same height as the side cleaning grinding head, ensuring that the sprayed alcohol effectively wets the lint-free cloth, and that the wetted area precisely corresponds to the area requiring cleaning. An alcohol tank 1-46 is also mounted on the fixing plate, below the alcohol spray nozzle and the side cleaning grinding head, to further collect residual alcohol and prevent damage to other electrical components. The fixed plate is also connected to the pressure sensor 1-47 via a telescopic assembly, which can be a telescopic cylinder or other components.

[0061] The flipping assembly 1-5 includes a lifting Z-axis 1-51 and a flipping arm 1-52 mounted on the lifting Z-axis. A connecting block 1-53 is mounted on the flipping arm. Both ends of the connecting block have waist grooves 1-54. A vacuum suction cup 1-56 is connected to the waist groove via a threaded rod 1-55. The threaded rod has a two-way nut 1-57, which locks the threaded rod to the connecting block. The waist grooves allow for flexible fixing of the threaded rod to accommodate products of different sizes. Furthermore, the diameter of the two-way nut is larger than the diameter of the waist groove, while the outer diameter of the threaded rod is smaller than the diameter of the waist groove. This allows the threaded section of the threaded rod to be positioned within the waist groove, and the two-way nut locks it from both top and bottom, eliminating the need for additional fasteners during connection and making adjustment more convenient.

[0062] like Figures 14-18 As shown, the AOI inspection machine 2 includes a loading and transporting assembly 2-1, a three-movement transporting assembly 2-2, a system surface inspection assembly 2-3, a side and radius corner inspection assembly 2-4, and a user surface inspection assembly 2-5. The loading and transporting assembly 2-1 transports the cleaned product to the system surface inspection assembly for system surface visual inspection. The three-movement transporting assembly 2-2 includes a first moving part transporting assembly 2-21, a second moving part transporting assembly 2-22, and a third moving part transporting assembly 2-23. The first moving part transporting assembly transports the product to the side and radius corner inspection assembly for inspection. The second moving part transporting assembly transports the product to the user surface inspection assembly for inspection. The third moving part transporting assembly transports the product to the unloading machine for unloading.

[0063] The system surface inspection component 2-3 includes a speaker inspection module 2-31, an inner sidewall inspection module 2-32, and a rear 16K coaxial inspection module 2-33; the speaker inspection module, the inner sidewall inspection module, and the rear 16K coaxial inspection module are respectively set on the corresponding inspection station of the machine tool by brackets.

[0064] The side and rounded corner detection assembly 2-4 includes an upper and lower edge detection module 2-41, a camera detection module 2-42, a side line scan detection module 2-43, and a rounded corner detection module 2-44; the upper and lower edge detection module, the camera detection module, the side line scan detection module, and the rounded corner detection module are respectively set on the corresponding detection stations of the machine.

[0065] User face inspection component 2-5 includes stress mark inspection module 2-51, 16k time-sharing inspection module 2-52, LOGO inspection module 2-53 and 4K-LOGO inspection module 2-54. The stress mark inspection module, 16k time-sharing inspection module, LOGO inspection module and 4K-LOGO inspection module are respectively set on the corresponding inspection station of the machine.

[0066] like Figure 19 As shown, the feeding machine 3 includes a feeding channel assembly 3-1, a feeding robot assembly 3-2, and a material tray circulation assembly 3-3; the feeding robot assembly places the products on the feeding channel assembly into the material tray circulation assembly.

[0067] The entire working process of the device is as follows:

[0068] 1. The product is manually placed at the feeding port and moved to the robotic arm's picking position through the flow channel;

[0069] 2. After the robotic arm picks up the material, it flips it over and, guided by vision, places the product on a large-area cleaning fixture;

[0070] Large-area cleaning process: Wet the product with a lint-free cloth - wet wipe the large surface of the product (avoiding logos and cameras) - dry wipe the large surface of the product - move the product to the unloading position to await handling and retrieval;

[0071] 3. After the cleaning fixture completes the large-area cleaning of the product, it is moved to the unloading position to await handling and transfer.

[0072] 4. The transport assembly moves the product from the large-area cleaning fixture to the side cleaning fixture; Side & Round Corner Cleaning Process: The product is moved to the side cleaning carrier by the transport assembly - a lint-free cloth is soaked - the long side of the product is wet-wiped - the long side is dry-wiped - the grinding head retracts - the product rotates - the grinding head extends - the two round corners are wet-wiped - the round corners are dry-wiped.

[0073] - Grinding head retracts - Product rotates - Grinding head extends - Short side wet wiping - Short side dry wiping - Grinding head retracts - Product rotates - Grinding head extends - R-angle wet wiping - R-angle dry wiping - Move to the flipping and picking position - Wait for the lifting and flipping to pick up the material;

[0074] 5. After the side cleaning fixture completes the side cleaning of the product, it moves to the flipping and picking position;

[0075] 6. Flip the product using the flip component and wait for AOI inspection;

[0076] 7. The loading and handling assembly moves the product to the system surface inspection fixture, completes the system surface visual inspection, and returns to the unloading position;

[0077] 8. The product is placed on the side visual inspection component by the first moving part of the conveying assembly to complete the side and R-angle inspection, and then returned to the unloading position;

[0078] 9. The product is placed on the user-side visual inspection component via the second moving part, the user-side inspection is completed, and the product returns to the unloading position;

[0079] 10. The product is moved to the unloading buffer position via the third moving part of the conveying assembly;

[0080] 11. After the vision system determines the product, the unloading robot places the product in the corresponding compartment, completing the product unloading.

[0081] This device features added side and corner cleaning, enhancing the cleaning effect on products, reducing dirt and burrs, and minimizing visual misjudgments. Product transfer is completed via a flipping mechanism, a three-movement transport mechanism, and a linear motor inspection fixture. System surface inspection, side and corner inspection, and user-facing inspection are performed sequentially, giving the machine strong versatility. A marble base plate increases equipment stability, reduces vibration, and enhances visual inspection capabilities. It includes four sets of line scan cameras and eight sets of area scan cameras for multi-angle inspection of products, sequentially inspecting all six major surfaces of the product.

[0082] The above description is only a specific embodiment of the present utility model. Various examples and illustrations do not constitute a limitation on the substantive content of the present utility model. Those skilled in the art can make modifications or variations to the above-described specific embodiments after reading the description without departing from the substance and scope of the utility model.

Claims

1. A device for detecting the appearance of a PAD back cover, characterized by: Including the loading and cleaning machine, AOI detection machine and unloading machine;The loading machine includes loading flow channel assembly, large surface cleaning assembly, carrying assembly, side and R angle cleaning assembly and turnover assembly;The large surface cleaning assembly and the side and R angle cleaning assembly are arranged side by side, the carrying assembly is arranged on the same side of the large surface cleaning assembly and the side and R angle cleaning assembly, and the product to be cleaned is carried from the large surface cleaning assembly to the side and R angle cleaning assembly through the carrying assembly for cleaning in the "C” shape path;The loading flow channel assembly is arranged in the front of the large surface cleaning assembly, and the turnover assembly is arranged in the rear of the side and R angle cleaning assembly; The AOI detection machine includes loading carrying assembly, three-movable-sub carrying assembly, system surface detection assembly, side and R angle detection assembly and user surface detection assembly;The loading carrying assembly carries the cleaned product to the system surface detection assembly to complete the system surface visual detection;The three-movable-sub carrying assembly includes first, second and third movable-sub carrying assemblies;The first movable-sub carrying assembly carries the product to the side and R angle detection assembly to complete the detection;The second movable-sub carrying assembly carries the product to the user surface detection assembly to complete the detection;The third movable-sub carrying assembly carries the product to the unloading machine for unloading.

2. The PAD back cover appearance inspection apparatus according to claim 1, characterized by: The large surface cleaning assembly includes large surface cleaning grinding head assembly and cloth winding mechanism;The large surface cleaning grinding head assembly includes grinding head mounting plate, the bottom of the grinding head mounting plate is provided with large body cleaning grinding head;The grinding head mounting plate has an opening, the opening is provided with logo cleaning grinding head, and one side of the mounting plate is further provided with camera cleaning grinding head;The logo cleaning grinding head and the camera cleaning grinding head are respectively connected with lifting assemblies;When the large surface is wet wiped, the logo cleaning grinding head and the camera cleaning grinding head are lifted to avoid through the lifting assemblies.

3. The PAD back cover appearance inspection apparatus according to claim 1, characterized by: The side and R angle cleaning assembly includes cloth winding mechanism and side surface cleaning grinding head assembly;The side surface cleaning grinding head assembly includes a fixed plate, and the fixed plate is provided with a side surface cleaning grinding head;The side surface cleaning grinding head is a long strip with a groove;The fixed plate is further provided with an alcohol spray head;The alcohol spray head is arranged at the same height as the side surface cleaning grinding head, and the fixed plate is further provided with an alcohol groove below the alcohol spray head and the side surface cleaning grinding head.

4. The PAD back cover appearance inspection apparatus according to claim 1, characterized by: The turnover assembly includes lifting Z axis and turnover arm arranged on the lifting Z axis, and the turnover arm is provided with a connecting block;The connecting block is provided with a waist groove at both ends, and a vacuum chuck is connected to the waist groove through a threaded rod;The threaded rod has a bidirectional nut, and the threaded rod is locked and connected with the connecting block through the bidirectional nut.

5. The PAD back cover appearance inspection apparatus of claim 1, wherein: The system surface detection assembly includes loudspeaker detection module, inner side wall detection module and back 16K coaxial detection module;The loudspeaker detection module, the inner side wall detection module and the back 16K coaxial detection module are respectively arranged on the corresponding detection stations of the machine table through the supports.

6. The PAD back cover appearance inspection apparatus of claim 1, wherein: The side and R angle detection assembly comprises an upper and lower edge detection module, a camera detection module, a side line scanning detection module and an R angle detection module; the upper and lower edge detection module, the camera detection module, the side line scanning detection module and the R angle detection module are respectively arranged on the corresponding detection station of the machine table.

7. The PAD back cover appearance inspection apparatus of claim 1, wherein: The user face detection assembly comprises a stress mark detection module, a 16k time sharing detection module, a LOGO detection module and a 4K-LOGO detection module; the stress mark detection module, the 16k time sharing detection module, the LOGO detection module and the 4K-LOGO detection module are respectively arranged on the corresponding detection station of the machine table.

8. The PAD back cover appearance inspection apparatus of claim 1, wherein: The unloading machine comprises an unloading flow channel assembly, an unloading mechanical arm assembly and a material disc circulating assembly; the unloading mechanical arm assembly puts the product on the unloading flow channel assembly into the material disc circulating assembly.

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