A mobile phone glass panel defect detection device

Abstract

The present application relates to the field of mobile phone panel detection, specifically to a mobile phone glass panel defect detection device. Including feeding mechanism and discharging mechanism, also including the rack with two assembly lines, the rack is equipped with the code station, detection handling station, vertical station, short arc scratch station, short arc indentation station, side detection station and main station, and the vertical station is equipped with three main cameras, the short arc scratch station and the main station are respectively provided with two main cameras, and the main camera side is provided with a slide table module for adjusting the position of the main camera. The device can detect white sheets and finished products, and can detect vertical scratches, short edge arc surface and R angle arc surface defects, short edge arc indentation, long edge defects and surface defects through cooperation of each station. The device adopts a modular structure, optimizes the machine components, reduces the weight, is convenient for maintenance and assembly, solves the problems of single function, detection blind area and non-adjustable camera of traditional equipment, and improves the detection efficiency and accuracy.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of mobile phone panel detection, in particular to a mobile phone glass panel defect detection device. BACKGROUND

[0002] At present, the traditional device in the field of mobile phone glass panel defect detection has many obvious defects. In terms of detection range, the traditional equipment has single function, and most of them can only detect finished products or white sheets separately, and cannot realize the compatible detection of both, which leads to the need to equip two different detection devices on the production line, not only increasing the equipment investment cost, but also occupying more production space, and also increasing the complexity of equipment maintenance.

[0003] From the detection coverage, the traditional device has many blind spots. Due to the complex structure of the panel, including short side arc surface, R angle arc surface, long side and surface, the camera and light source of the traditional equipment are not reasonable, and it is difficult to fully cover these parts, especially in the aspects of indentation of short side arc surface, fine scratch of R angle arc surface and ink leakage defect, etc., often missing detection, which seriously affects the control of product quality.

[0004] In terms of camera position adjustment, the camera of the traditional equipment is mostly fixedly installed, and cannot be flexibly adjusted according to the detection needs of different models of panels. When different specifications of panels need to be detected, the camera often needs to be disassembled and reinstalled and positioned, which is tedious and time-consuming, reduces the detection efficiency, and the repeated disassembly may also affect the installation accuracy of the camera, leading to increased detection error.

[0005] In terms of machine structure design, the machine structure of the traditional detection device is complex, and the components are closely connected, lacking modular design. This makes the equipment heavy, inconvenient to carry and install, and also brings great difficulty to maintenance. Due to the small maintenance space, when the equipment fails, the maintenance personnel cannot quickly access the faulty components, increasing the maintenance time and cost, and affecting the normal operation of the production line.

[0006] In addition, the contact transmission mode of the traditional equipment is mostly used in the transmission process, which is easy to produce mechanical friction, causing equipment vibration, and then affecting the stable conveying of the panel, making the image captured by the camera blurred, reducing the detection accuracy. Moreover, the contact transmission may also scratch the surface of the panel, affecting the product quality. At the same time, the guiding mechanism on the assembly line is not flexible enough to adjust to the guiding needs of panels of different sizes, which may easily cause the panel to deviate, further affecting the detection effect. SUMMARY

[0007] Therefore, it is necessary to provide a mobile phone glass panel defect detection device to solve the technical problems in the prior art.

[0008] To solve the problems of the prior art, the technical solution adopted by the present invention is as follows:

[0009] A mobile phone glass panel defect detection device includes a feeding mechanism and a unloading mechanism, and further includes:

[0010] The upper part is equipped with a frame with two production lines. At the entrance of one production line, the frame is equipped with a code station that connects with the feeding mechanism. Next to the code station, there is an inspection and handling station. Next to the inspection and handling station, there is a vertical station for detecting vertical scratches on the panel. Next to the vertical station, there is a short arc scratch station for detecting short arc scratches on the short side arc surface and R-corner arc surface of the panel.

[0011] A short arc scratch station is set up next to the short arc scratch station to detect short arc surface indentations on the panel. A side inspection station is set up next to the short arc scratch station to detect long side defects on the panel. A main station for detecting panel surface defects is set up next to the side inspection station.

[0012] The vertical workstation is equipped with three main cameras, the short arc scratch workstation and the main workstation are each equipped with two main cameras, and a slide module for adjusting the position of the main camera is set next to the main camera.

[0013] Furthermore, each cleanroom shaft of the production line is fixedly fitted with an antistatic roller, and the antistatic roller is fixedly fitted with two guide wheels, which support the panel for movement.

[0014] The cleanroom shaft is set perpendicular to the output shaft of the production line, and the cleanroom shaft is located at the upper end of the output shaft. A magnetic sleeve is fitted at the end of the cleanroom shaft, and a magnetic block corresponding to the magnetic sleeve is fitted on the coaxial line of the output shaft. The magnetic block and the magnetic sleeve achieve non-contact transmission through magnetic force.

[0015] Furthermore, a bidirectional screw slide module is fixedly connected to the bottom support of the assembly line. The output end of the bidirectional screw slide module is connected to two guide platforms. When the bidirectional screw slide module is started, it drives the two guide platforms to move away from each other or move closer to each other at the same time.

[0016] Each guide platform has a main motor fixedly connected to its lower end and two pulleys rotatably connected to its upper end. The output end of the main motor is fixedly connected to one of the pulleys on the same axis. The two pulleys are connected by belt drive. Guide wheels are fixedly connected to the upper ends of the two pulleys on the same axis. The guide wheels abut against the edge of the panel during the movement of the panel.

[0017] Furthermore, an arc-shaped frame is set on each side of the central frame of the vertical workstation. One main camera is fixed vertically to the middle of the central frame, and the other two main cameras are symmetrically set on both sides of the main camera in the middle of the central frame. Four main lamp holders are set on the inner side of the arc-shaped frame, and the output end of the main lamp holder is aligned with the panel being detected.

[0018] Two auxiliary lamp holders are respectively set at the upper and lower ends of the arc-shaped frame. The two auxiliary lamp holders at the upper end of the arc-shaped frame are connected to the arc-shaped frame through a three-dimensional adjustment frame, and the two auxiliary lamp holders at the lower end of the arc-shaped frame are connected to the extension frame of the central frame through a three-dimensional adjustment frame.

[0019] Furthermore, two arc-shaped frames of different sizes are set on both sides of the middle frame of the short arc scratching station, and the arc-shaped frame closer to the vertical station is smaller than the arc-shaped frame farther away from the vertical station. A light shield is set on the side of the two arc-shaped frames that are close to each other, and a main camera set in a vertical position is set on the top of the two arc-shaped frames respectively.

[0020] The end of the arc-shaped frame away from the vertical workstation is provided with a scale groove. There are two scales in the middle of the arc-shaped frame. The end of each scale is tunably connected to the arc-shaped frame via a slider. There are two adjustment platforms tunably connected to the middle of the scales. The scales are connected to the secondary lamp holders via the adjustment platforms.

[0021] Two main lamp holders are installed on the inner side of the arc-shaped frame near the vertical workstation.

[0022] Furthermore, the slide module includes a carrier, the carrier located at the vertical work position is fixedly connected to the central frame, the carrier located at the short arc scratch work position is fixedly connected to the central frame, and a screw is rotatably provided in the middle of the carrier, with a guide seat threadedly connected to the screw.

[0023] Limiting rods are provided on both sides of the screw, and the limiting rods are slidably connected to the guide seat. A turntable is fixedly connected to the upper end of the screw along the same axis, and the guide seat is fixedly connected to the corresponding main camera.

[0024] Furthermore, the short arc indentation station includes a sub-frame, which is equipped with a secondary camera for taking aerial photos of the panel via a guide rail. Below the secondary camera, a positioning frame is adjustable via bolts, and two light source plates are fixedly connected to the lower end of the positioning frame.

[0025] Furthermore, the border inspection station includes two opposing bases, with curved arms mounted on the bases. A secondary camera is mounted on the upper end of the curved arms, and an arc-shaped light source is mounted on the side of the base near the middle of the assembly line.

[0026] Furthermore, the main workstation includes a guard, and the main camera located at the main workstation is respectively set at the upper and lower ends of the guard;

[0027] The upper part of the barrier is symmetrically equipped with cantilever arms, and the lower ends of the cantilever arms are fixed with arc-shaped light sources. Auxiliary light sources are provided at the upper and lower ends of the barrier.

[0028] Furthermore, two-dimensional adjustment frames are provided on both sides of the baffle. A short-line light source is fixedly connected to one end of the two-dimensional adjustment frame that extends into the baffle. A diffusion film fixedly connected to the two-dimensional adjustment frame is provided next to the short-line light source.

[0029] The beneficial effects of this invention compared to the prior art are:

[0030] Firstly, this device enables compatible testing of blank panels and finished products, effectively solving the problem that traditional equipment can only test one type of panel at a time. It eliminates the need for two sets of testing equipment, reducing equipment investment costs, saving production space, reducing equipment maintenance complexity, improving the overall operating efficiency of the production line, and adapting to diverse production needs.

[0031] Secondly, this device achieves comprehensive inspection of all parts of the panel by rationally setting up the cameras and light sources at each inspection station, eliminating the blind spots in traditional equipment. Whether it is an indentation on the short side arc surface, a minor scratch on the R-corner arc surface, or a defect such as ink leakage, it can be accurately captured, greatly improving the reliability of product quality inspection and reducing the occurrence of missed inspections.

[0032] Thirdly, the sliding stage module in this device allows the main camera to be flexibly adjusted, solving the problem of fixed and unadjustable cameras in traditional equipment. For different models of panels, operators can easily adjust the camera's shooting angle and distance to ensure that the camera is always in the best shooting position, improving detection efficiency and avoiding accuracy errors caused by disassembly and reassembly, thus ensuring the accuracy of detection.

[0033] Fourthly, this device adopts a modular design, which optimizes the machine structure components and makes the structure of each workstation reasonably distributed, reducing the weight of the equipment and making it easier to transport and install. At the same time, the modular design increases the maintenance space of the equipment. When the equipment malfunctions, maintenance personnel can quickly approach and handle the faulty parts, shortening maintenance time, reducing maintenance costs, and ensuring the stable operation of the production line.

[0034] Fifthly, this device achieves non-contact transmission through magnetic sleeves and magnetic blocks, using magnetic force to transmit power, completely avoiding vibration interference caused by mechanical friction, ensuring the stability of the panel during movement, reducing blurring of images captured by the camera, and improving detection accuracy. Furthermore, this device uses a bidirectional screw slide module to drive two guide stages to move away or closer simultaneously, thereby flexibly adjusting the guide wheel spacing according to the panel size. At the same time, the guide wheels are driven to rotate by the main motor through pulleys and belts, making rolling contact with the edge of the panel. This achieves precise guidance for panels of different sizes and reduces wear on the panel edges, ensuring that the panel is stably transported to each detection station along the preset path, avoiding the problem of panel offset affecting the detection effect. Attached Figure Description

[0035] Figure 1 This is a three-dimensional structural diagram of an embodiment;

[0036] Figure 2 This is a front view of an embodiment;

[0037] Figure 3 This is a three-dimensional structural diagram of the production line in the embodiment;

[0038] Figure 4 yes Figure 3 A partial structural diagram of section H of the production line;

[0039] Figure 5 This is a three-dimensional structural diagram of the bidirectional lead screw slide module in the embodiment;

[0040] Figure 6 This is a three-dimensional structural diagram of the vertical workstation in the embodiment;

[0041] Figure 7 yes Figure 6 Enlarged view of the structure at point A in the middle;

[0042] Figure 8 This is a three-dimensional structural diagram of the short arc scratch station in the embodiment;

[0043] Figure 9 yes Figure 8 Enlarged view of the structure at point B in the middle;

[0044] Figure 10 This is a three-dimensional structural diagram of the short arc indentation station in the embodiment;

[0045] Figure 11 This is a three-dimensional structural diagram of the border inspection station in the embodiment;

[0046] Figure 12 This is a three-dimensional structural diagram of the main workstation in the embodiment;

[0047] Figure 13 This is a half-sectional view of the main workstation in the embodiment.

[0048] The numbers on the map are:

[0049] 1. Frame; 111. Loading mechanism; 112. Unloading mechanism; 2. Production line; 3. Guide wheel; 4. Dust-free shaft; 5. Base support; 6. Anti-static roller; 7. Output shaft; 8. Magnetic sleeve; 9. Magnetic block; 10. Bidirectional lead screw slide module; 11. Guide table; 12. Main motor; 13. Pulley; 14. Guide wheel; 15. Code station; 16. Inspection and handling station; 17. Vertical station; 18. Center frame; 19. Arc frame; 20. Scale groove; 21. Main lamp holder; 22. Extension frame; 23. Three-dimensional adjustment frame; 24. Auxiliary lamp holder; 25. Short arc scratch station; 26. Middle frame; 2 7. Light-blocking plate; 28. Adjustment table; 29. ​​Scale; 30. Main camera; 31. Slide module; 32. Carrier; 33. Guide seat; 34. Limiting rod; 35. Screw; 36. Turntable; 37. Short arc indentation station; 38. Secondary camera; 39. Secondary frame; 40. Positioning frame; 41. Light source board; 42. Edge inspection station; 43. Secondary camera; 44. Curved light source; 45. Base; 46. Curved arm; 47. Main station; 48. Stop frame; 49. Circular arc light source; 50. Cantilever; 51. Auxiliary light source; 52. Diffuser film; 53. Short line light source; 54. Two-dimensional adjustment frame; 55. Secondary lamp holder. Detailed Implementation

[0050] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0051] refer to Figures 1 to 13 A mobile phone glass panel defect detection device includes a feeding mechanism 111 and a discharging mechanism 112, and further includes:

[0052] The upper part is provided with a frame 1 with two production lines 2. At the entrance of one production line 2, the frame 1 is provided with a code station 15 that is connected to the feeding mechanism 111. Next to the code station 15, there is a detection and handling station 16. Next to the detection and handling station 16, there is a vertical station 17 for detecting vertical scratches on the panel. Next to the vertical station 17, there is a short arc scratch station 25 for detecting short arc scratches on the short side arc surface and R-corner arc surface of the panel.

[0053] A short arc scratch station 25 is located next to a short arc indentation station 37 for detecting short arc surface indentations on the panel. A side inspection station 42 for detecting long edge defects on the panel is located next to the short arc scratch station 37. A main station 47 for detecting panel surface defects is located next to the side inspection station 42.

[0054] The vertical station 17 is equipped with three main cameras 30, the short arc scratch station 25 and the main station 47 are each equipped with two main cameras 30, and a slide module 31 for adjusting the position of the main camera 30 is provided next to the main camera 30.

[0055] When this device is running, the panel is divided into blank sheets and finished products. After being fed by the feeding mechanism 111, the blank sheets move to the code station 15, and the finished products move to the inspection and handling station 16. Then, the operating system inspects the blank sheets and finished products on the two production lines 2 through each station. Before each product switch, the operator manually inputs the product model into the operating system, and the operating system will automatically determine which stations need to be inspected and which stations do not need to be inspected (i.e., the blank sheets need to be inspected through the code station 15, and the finished products move past the code station 15 to the inspection and handling station 16 for clear code and IR optical inspection). The stations that need to be inspected will take pictures of the panel, and the stations that do not need to be inspected will allow the product to pass directly through the production line 2 without taking pictures.

[0056] When the panel moves to the vertical station 17, the vertical station 17, in conjunction with the light source, performs vertical scratch inspection on the panel. The panel then moves to the short arc scratch station 25, where it performs three-type defects inspection on the short-side arc surface and R-corner arc surface defects. Next, the panel moves to the short arc indentation station 37, where it is photographed twice to inspect the two short sides for over-polishing defects such as indentations, dents, and knife marks. Finally, the panel moves to the edge inspection station 42, where it performs long-side defect inspection, including chipping, black spots, and white spots.

[0057] Finally, the panel moves to the main station 47, where it performs surface defect detection. During the surface defect detection process, the multi-light source at the main station 47 highlights ink leakage defects in the panel through reflection, thereby achieving all-round detection of the panel. After the detection is completed, the panel is then unloaded by the unloading mechanism 112.

[0058] To provide a detailed explanation of the specific structure of production line 2, the following features are also included:

[0059] like Figure 3 and Figure 4 As shown, each cleanroom shaft 4 of the production line 2 is respectively fitted with an antistatic roller 6, and the antistatic roller 6 is fitted with two guide wheels 3, which support the panel for movement.

[0060] The clean shaft 4 is set perpendicular to the output shaft 7 of the production line 2, and the clean shaft 4 is set at the upper end of the output shaft 7. A magnetic sleeve 8 is sleeved at the end of the clean shaft 4. A magnetic block 9 corresponding to the magnetic sleeve 8 is sleeved on the output shaft 7. The magnetic block 9 and the magnetic sleeve 8 achieve non-contact transmission through magnetic force.

[0061] During the operation of production line 2, the anti-static roller 6 stably supports the panel through the guide wheel 3. It uses its own anti-static properties to prevent the panel from attracting dust and impurities due to static electricity. At the same time, it uses the magnetic sleeve 8 and magnetic block 9 between the dust-free shaft 4 and the output shaft 7 to achieve non-contact transmission, reduce vibration interference caused by mechanical friction, ensure that the panel remains stable during movement, and reduce detection deviation caused by transmission instability.

[0062] To guide the panels on production line 2, the following features are specifically designed:

[0063] refer to Figure 2 and Figure 5 As shown, a bidirectional screw slide module 10 is fixedly connected to the bottom support 5 of the assembly line 2. The output end of the bidirectional screw slide module 10 is connected to two guide platforms 11. When the bidirectional screw slide module 10 is started, it drives the two guide platforms 11 to move away from or move closer to each other at the same time.

[0064] Each guide platform 11 has a main motor 12 fixedly connected to its lower end and two pulleys 13 rotatably connected to its upper end. The output end of the main motor 12 is fixedly connected to one pulley 13 on the same axis. The two pulleys 13 are connected by belt drive. The upper ends of the two pulleys 13 are fixedly connected to guide wheels 14 on the same axis. The guide wheels 14 abut against the edge of the panel during the movement of the panel.

[0065] When the panel moves, the bidirectional screw slide module 10 drives the two guide tables 11 to move closer or further away synchronously according to the panel size. The main motor 12 drives the pulley 13 to rotate, so that the guide wheel 14 rotates with the belt drive. The guide wheel 14 abuts against the edge of the panel, which not only provides precise guidance for the panel, but also reduces wear on the edge of the panel through rolling contact, ensuring that the panel is stably transported to each inspection station along the preset path.

[0066] To provide a detailed explanation of the specific structure of the vertical workstation 17, the following features are also included:

[0067] refer to Figure 1 and Figure 6 On both sides of the central frame 18 of the vertical workstation 17, there is an arc frame 19. One main camera 30 is vertically fixed to the middle of the central frame 18. The other two main cameras 30 are symmetrically inclined on both sides of the main camera 30 in the middle of the central frame 18. Four main lamp holders 21 are respectively provided on the inner side of the arc frame 19. The output end of the main lamp holder 21 is aligned with the panel being detected.

[0068] Two auxiliary lamp holders 24 are respectively provided at the upper and lower ends of the arc frame 19. The two auxiliary lamp holders 24 located at the upper end of the arc frame 19 are connected to the arc frame 19 through a three-dimensional adjustment frame 23, and the two auxiliary lamp holders 24 located at the lower end of the arc frame 19 are connected to the extension frame 22 of the central frame 18 through a three-dimensional adjustment frame 23.

[0069] When working at the vertical station 17, the vertical main camera 30 in the middle of the central frame 18 vertically photographs the panel surface, while the main cameras 30 on both sides are tilted to capture vertical scratches from different angles. The main lamp holder 21 inside the arc frame 19 provides a uniform main light source, and the auxiliary lamp holders 24 at the upper and lower ends are adjusted in angle and position through the three-dimensional adjustment frame 23 to supplement light and eliminate shadows, ensuring clear imaging of vertical scratch defects and improving detection accuracy.

[0070] To supplement the specific structure of the short arc scratching station 25, the following features were also added:

[0071] refer to Figure 1 , Figure 2 , Figure 8 and Figure 9 Two arc-shaped frames 19 of different sizes are respectively set on both sides of the middle frame 26 of the short arc scratching station 25. The arc-shaped frame 19 closer to the vertical station 17 is smaller than the arc-shaped frame 19 farther away from the vertical station 17. A light shield 27 is set on the side of the two arc-shaped frames 19 that are close to each other. A main camera 30 is set on the top of the two arc-shaped frames 19 in a vertical position.

[0072] The end of the arc-shaped frame 19 away from the vertical workstation 17 is provided with a scale groove 20. Two scales 29 are provided in the middle of the arc-shaped frame 19. The end of each scale 29 is tunably connected to the arc-shaped frame 19 via a slider. Two adjustment platforms 28 are tunably connected in the middle of the scales 29. The scales 29 are connected to the secondary lamp holder 55 via the adjustment platforms 28.

[0073] Two main lamp holders 21 are installed on the inner side of the arc-shaped frame 19 near the vertical workstation 17.

[0074] In the short arc scratch station 25, arc frames 19 of different sizes are adapted to the inspection requirements of the short side arc surface and R-corner arc surface of the panel. The light shield 27 avoids mutual interference between the light sources on both sides. The main lamp holder 21 provides the light required for inspection. Two main cameras 30 respectively capture images of the arc surface area. The scale 29 can adjust the position of the secondary lamp holder 55 through the slider and the adjustment table 28, and achieves precise positioning in conjunction with the scale groove 20 to ensure that the three types of defects and R-corner arc surface defects are fully captured.

[0075] To illustrate the specific structure of the slide module 31, the following features are also provided:

[0076] The slide module 31 includes a carrier 32, which is fixedly connected to the center frame 18 at the vertical station 17 (see reference here). Figure 1 , Figure 2 and Figure 7 The carrier 32 located at the short arc scratching station 25 is fixedly connected to the middle frame 26. A screw 35 is rotatably provided in the middle of the carrier 32, and a guide seat 33 is threadedly connected to the screw 35.

[0077] refer to Figure 7 Limiting rods 34 are provided on both sides of the screw 35. The limiting rods 34 are slidably connected to the guide seat 33. The upper end of the screw 35 is coaxially fixed to the turntable 36. The guide seat 33 is fixedly connected to the corresponding main camera 30.

[0078] The slide module 31 rotates the screw 35 by rotating the turntable 36, causing the guide seat 33 to slide along the limit rod 34, thereby adjusting the position of the main camera 30. The shooting angle and distance of the main camera 30 can be flexibly adjusted according to the detection requirements of different panel models, ensuring that the camera is always in the best shooting position and adapting to diverse detection scenarios.

[0079] To supplement the specific results of short arc indentation station 37, the following features were also set:

[0080] refer to Figure 1 , Figure 2 and Figure 10 The short arc indentation station 37 includes a sub-frame 39. The sub-frame 39 has an adjustable sub-camera 38 mounted on a guide rail for taking aerial photos of the panel. Below the sub-camera 38, a positioning frame 40 is adjustable via bolts. Two light source plates 41 are fixedly connected to the lower end of the positioning frame 40. The sub-frame 39 of the short arc indentation station 37 adjusts the position of the sub-camera 38 via the guide rails, aligning it with the short arc surface of the panel. The light sources fixed to the light source plates 41 on the positioning frame 40 provide stable brightness to the sub-camera 38. The sub-camera 38 then takes two aerial photos of the panel, detecting over-polishing defects on the two short sides. The positioning frame 40 is adjustable via bolts, allowing for precise positioning of the shooting area according to the panel size.

[0081] To supplement the specific structure of border inspection station 42, the following features were also provided:

[0082] refer to Figure 1 and Figure 11 The border inspection station 42 includes two opposing bases 45, with a curved arm 46 on the base 45. A secondary camera 43 is mounted on the upper end of the curved arm 46, and an arc-shaped light source 44 is mounted on the side of the base 45 near the middle of the assembly line 2.

[0083] The curved arms 46 on the two bases 45 of the border inspection station 42 adjust the height and angle of the secondary camera 43. The secondary camera 43 is aligned with the long side of the panel. The arc-shaped light source 44 next to the base 45 provides surround lighting for the long side area, highlighting defects such as chipped edges, black spots and white spots, ensuring that no defects on the long side are missed in the inspection.

[0084] To supplement the specific structure of main workstation 47, the following features were also set:

[0085] refer to Figure 1 ,Figure 2 and Figure 12 The main workstation 47 includes a baffle 48, and the main camera 30 located at the main workstation 47 is respectively set at the upper and lower ends of the baffle 48.

[0086] The upper part of the baffle 48 is symmetrically provided with cantilever 50, and the lower end of the cantilever 50 is fixedly connected with arc light source 49. The upper and lower ends of the baffle 48 are respectively provided with auxiliary light source 51.

[0087] The main camera 30 at the top and bottom of the bracket 48 of the main workstation 47 takes pictures of the panel surface from the top and bottom directions respectively. The arc light source 49 of the upper cantilever 50 provides large-area uniform illumination, and the auxiliary light sources 51 at the top and bottom ends supplement the light, illuminating the panel surface from all directions, making the surface defects clear and easy for the main camera 30 to capture accurately.

[0088] To supplement the light source at the 47 main workstations, the following features were specifically designed:

[0089] refer to Figure 12 and Figure 13 Two-dimensional adjustment frames 54 are respectively provided on both sides of the baffle 48. A short line light source 53 is fixedly connected to one end of the two-dimensional adjustment frame 54 that extends into the baffle 48. A diffusion film 52 fixedly connected to the two-dimensional adjustment frame 54 is provided on the side of the short line light source 53.

[0090] The two-dimensional adjustment brackets 54 on both sides of the baffle 48 can adjust the position and angle of the short light source 53. The short light source 53, together with the diffusion film 52, forms soft light, which is used to target specific areas of the panel, highlighting ink leakage defects and further improving the comprehensiveness and accuracy of surface defect detection.

[0091] The detailed working principle of this device is as follows:

[0092] After the device is started, the feeding mechanism 111 transports the mobile phone glass panels to be inspected (including blank films and finished products) to two production lines 2. Then, the code station 15 on the production line 2 used for inspecting blank films responds. Here, the code station 15 is used to read the code of the blank film. After the inspection and handling station 16 on the production line 2 used for inspecting finished products responds, the inspection and handling station 16 picks up the finished product and completes the clear code and IR optical inspection. Then, the inspection and handling station 16 puts the finished product back onto the production line 2, realizing the initial diversion of classification inspection.

[0093] After the production line 2 starts, the output shaft 7 begins to rotate. The magnetic blocks 9 on its surface drive the magnetic sleeve 8 at the end of the cleanroom shaft 4 to rotate synchronously, thereby driving the cleanroom shaft 4 to rotate. The antistatic roller 6, which is fitted outside the cleanroom shaft 4, rotates together, and the guide wheel 3 in the middle supports the panel and moves smoothly along the production line 2. The antistatic properties of the antistatic roller 6 effectively prevent the panel surface from attracting dust and impurities from the air due to static electricity, while the magnetic non-contact transmission method completely eliminates the mechanical friction of traditional contact transmission, greatly reducing the impact of equipment vibration on the stability of panel conveying and providing a stable foundation for subsequent testing.

[0094] As the panel moves along production line 2, the bidirectional lead screw slide module 10 at the base 5 is activated, driving the two guide platforms 11 to simultaneously move closer or further away until the guide wheel 14 maintains a suitable distance from the panel edge. At this time, the main motor 12 starts, driving the pulley 13 to rotate via belt drive, causing the guide wheel 14 to rotate synchronously. The rolling contact between the guide wheel 14 and the panel edge not only achieves precise guidance and prevents panel deviation, but also minimizes wear on the panel edge, ensuring that the panel always accurately enters each inspection station along the preset path.

[0095] When the panel enters the vertical station 17, the arc-shaped frames 19 on both sides of the central frame 18 are immediately activated. The four main lamp holders 21 on the inner side light up simultaneously, providing uniform main illumination. The auxiliary lamp holders 24 at the upper and lower ends of the arc-shaped frames 19 are adjusted to a preset angle by the three-dimensional adjustment frame 23, supplementing the light from the oblique direction and eliminating shadow areas on the panel surface. The main camera 30, which is vertically mounted in the middle, captures images of the panel surface vertically, while the main cameras 30 on both sides, which are set at an angle, simultaneously acquire images from the oblique direction. The three work together to capture vertical scratches and defects on the panel surface. If it is necessary to adapt to panels of different thicknesses, the guide seat 33 can be slid along the limit rod 34 by rotating the screw 35 through the turntable 36 of the slide module 31, so as to precisely adjust the shooting distance of the main camera 30 and ensure image clarity.

[0096] After the panel leaves the vertical station 17, it enters the short arc scratch station 25. Two arc-shaped frames 19 of different sizes on either side of the central frame 26 correspond to the inspection areas of the short-side arc surface and the round-corner arc surface of the panel, respectively. A light-blocking plate 27 effectively isolates the light sources on both sides, preventing mutual interference. On the inner side of the smaller arc-shaped frame 19 closer to the vertical station 17, two main lamp holders 21 illuminate the short-side arc surface, while the main camera 30 above vertically captures this area. The larger arc-shaped frame 19 farther from the vertical station 17 is positioned using a scale groove 20 and a scale 29. An adjustment table 28 moves the secondary lamp holder 55 to align with the round-corner arc surface for supplemental lighting, while the main camera 30 above the panel simultaneously captures the image. Both capture the three types of defects on the short-side arc surface and the minor damage on the round-corner arc surface, achieving comprehensive coverage of arc surface defects.

[0097] The panel then enters the short arc indentation station 37, where the light sources limited by the two light source plates 41 at the lower end of the positioning frame 40 provide sufficient brightness to the secondary camera 38. The secondary camera 38 on the secondary frame 39 first takes a picture of the short arc surface on one side of the panel to capture defects such as indentations and unevenness; as the panel continues to move, the secondary camera 38 takes another picture of the short arc surface on the other side of the panel to complete the detection of over-polishing defects on both short sides.

[0098] The panel continues to be conveyed to the edge inspection station 42. The curved light sources 44 on the two opposing bases 45 illuminate simultaneously, creating surround lighting to highlight minor defects along the long edges of the panel. The curved arm 46 is used to adjust the angle of the secondary camera 43, continuously capturing images of both long edges of the panel to accurately identify defects such as chipped edges, black spots, and white spots. The diffuse reflection characteristics of the curved light sources 44 effectively avoid glare caused by direct strong light, ensuring the image quality of the secondary camera 43.

[0099] Finally, the panel enters the main station 47, and the main cameras 30 at the top and bottom of the baffle 48 are activated simultaneously. The arc-shaped light source 49 of the upper cantilever 50 provides large-area surface illumination, while the auxiliary light sources 51 at the top and bottom supplement the light, ensuring uniform brightness on the panel surface. The two-dimensional adjustment brackets 54 on both sides of the baffle 48 are used to adjust the angle of the short-line light source 53, and the diffusion film 52 softens the light before projecting it onto the panel surface, highlighting ink leakage defects through reflection. The upper and lower main cameras 30 take pictures from the front and back directions respectively, comprehensively capturing surface defects such as bubbles and scratches on the panel surface, achieving the final closed loop of the inspection process. Finally, the panel is unloaded by the unloading mechanism 112.

[0100] Throughout the entire inspection process, image data from each station is transmitted to the control system in real time. Combined with the inspection information from the coded station 15 and the inspection and handling station 16, a complete inspection report is generated for each panel. For defective products, the system issues an instruction to sort them at the end of production line 2 using a sorting mechanism; qualified products continue to be transported to the next process, completing the entire inspection flow. The entire process, through modular design and intelligent adjustment mechanisms, achieves compatible inspection of blank films and finished products, covers defect types in all areas of the panel, and completely solves the inspection blind spot problem of traditional equipment.

[0101] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A mobile phone glass panel defect detection device, comprising a feeding mechanism (111) and a discharging mechanism (112), characterized in that, Also includes: The upper end is provided with a frame (1) with two production lines (2). The frame (1) is provided with a code station (15) at the entrance of one production line (2) to connect with the feeding mechanism (111). A detection and handling station (16) is provided next to the code station (15). A vertical station (17) for detecting vertical scratches on the panel is provided next to the detection and handling station (16). A short arc scratch station (25) for detecting short side arc surface and R-corner arc surface of the panel is provided next to the vertical station (17). A short arc scratch station (25) is set up next to a short arc indentation station (37) for detecting short arc surface indentations on the panel. A side inspection station (42) for detecting long side defects on the panel is set up next to the short arc scratch station (37). A main station (47) for detecting panel surface defects is set up next to the side inspection station (42). The vertical station (17) is equipped with three main cameras (30), the short arc scratch station (25) and the main station (47) are equipped with two main cameras (30) respectively, and a slide module (31) for adjusting the position of the main camera (30) is provided on the side of the main camera (30). Each dust-free shaft (4) of the production line (2) is fitted with an antistatic roller (6) on its outside. The antistatic roller (6) is fitted with two guide wheels (3) on its outside. The guide wheels (3) support the panel and move it. The clean shaft (4) is set perpendicular to the output shaft (7) of the production line (2), and the clean shaft (4) is set at the upper end of the output shaft (7). A magnetic sleeve (8) is sleeved at the end of the clean shaft (4). A magnetic block (9) corresponding to the magnetic sleeve (8) is sleeved on the output shaft (7) along the same axis. The magnetic block (9) and the magnetic sleeve (8) achieve non-contact transmission through magnetic force. On both sides of the central frame (18) of the vertical workstation (17), there is an arc frame (19). One main camera (30) is fixed to the middle of the central frame (18) in a vertical state. The other two main cameras (30) are symmetrically set on both sides of the main camera (30) in the middle of the central frame (18). Four main lamp holders (21) are set on the inner side of the arc frame (19). The output end of the main lamp holder (21) is aligned with the panel being detected. Two auxiliary lamp holders (24) are respectively provided at the upper and lower ends of the arc frame (19). The two auxiliary lamp holders (24) located at the upper end of the arc frame (19) are connected to the arc frame (19) through the three-dimensional adjustment frame (23). The two auxiliary lamp holders (24) located at the lower end of the arc frame (19) are connected to the extension frame (22) of the central frame (18) through the three-dimensional adjustment frame (23). Two arc-shaped frames (19) of different sizes are respectively set on both sides of the middle frame (26) of the short arc scratching station (25). The arc-shaped frame (19) closer to the vertical station (17) is smaller than the arc-shaped frame (19) further away from the vertical station (17). A light shield (27) is set on the side of the two arc-shaped frames (19) that are close to each other. A main camera (30) is set on the top of the two arc-shaped frames (19) in a vertical position. The end of the arc frame (19) away from the vertical workstation (17) is provided with a scale groove (20). Two scales (29) are provided in the middle of the arc frame (19). The end of each scale (29) is tunably connected to the arc frame (19) via a slider. Two adjustment platforms (28) are tunably connected in the middle of the scales (29). The scales (29) are connected to the secondary lamp holder (55) via the adjustment platforms (28). Two main lamp holders (21) are provided on the inner side of the arc frame (19) near the vertical work station (17). The border inspection station (42) includes two opposing bases (45), a curved arm (46) is provided on the base (45), a secondary camera (43) is provided at the upper end of the curved arm (46), and an arc-shaped light source (44) is provided on the side of the base (45) near the middle of the assembly line (2). The main workstation (47) includes a baffle (48), and the main camera (30) located at the main workstation (47) is respectively set at the upper and lower ends of the baffle (48); The upper part of the baffle (48) is symmetrically provided with cantilever (50), and the lower end of the cantilever (50) is fixed with an arc light source (49). The upper and lower ends of the baffle (48) are respectively provided with auxiliary light sources (51).

2. The mobile phone glass panel defect detection device according to claim 1, characterized in that, A bidirectional screw slide module (10) is fixedly connected to the bottom support (5) of the assembly line (2). The output end of the bidirectional screw slide module (10) is connected to two guide platforms (11). When the bidirectional screw slide module (10) is started, it drives the two guide platforms (11) to move away from or move closer to each other at the same time. Each guide platform (11) has a main motor (12) fixedly connected to its lower end and two pulleys (13) rotatably connected to its upper end. The output end of the main motor (12) is fixedly connected to one pulley (13) on the same axis. The two pulleys (13) are connected by belt drive. The upper ends of the two pulleys (13) are fixedly connected to guide wheels (14) on the same axis. The guide wheels (14) abut against the edge of the panel during the movement of the panel.

3. The mobile phone glass panel defect detection device according to claim 1, characterized in that, The slide module (31) includes a carrier (32). The carrier (32) located at the vertical station (17) is fixedly connected to the center frame (18). The carrier (32) located at the short arc scratch station (25) is fixedly connected to the center frame (26). A screw (35) is rotatably provided in the middle of the carrier (32). The screw (35) is threadedly connected to a guide seat (33). Limiting rods (34) are provided on both sides of the screw (35). The limiting rods (34) are slidably connected to the guide seat (33). A turntable (36) is coaxially fixed to the upper end of the screw (35). The guide seat (33) is fixedly connected to the corresponding main camera (30).

4. The mobile phone glass panel defect detection device according to claim 1, characterized in that, The short arc indentation station (37) includes a sub-frame (39). The sub-frame (39) is equipped with a secondary camera (38) for taking pictures of the panel via a guide rail. A positioning frame (40) is installed below the secondary camera (38) via bolts. Two light source plates (41) are fixedly connected to the lower end of the positioning frame (40).

5. The mobile phone glass panel defect detection device according to claim 1, characterized in that, Two-dimensional adjustment frames (54) are provided on both sides of the baffle (48). A short-line light source (53) is fixedly connected to one end of the two-dimensional adjustment frame (54) that extends into the baffle (48). A diffusion film (52) fixedly connected to the two-dimensional adjustment frame (54) is provided on the side of the short-line light source (53).

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