A device for optical detection of scratches in a camera module assembly for a mobile phone

Abstract

The utility model discloses a kind of for mobile phone camera assembly scratch optical detection equipment, including rack, fixedly installed with workbench on the rack, the top end middle part of the workbench is fixedly installed with multiple groups of product jacking positioning fixture mechanism, the top of multiple product jacking positioning fixture mechanism is equipped with ADI carrier conveying assembly line mechanism, the bottom of the ADI carrier conveying assembly line mechanism is fixedly connected with the top end of workbench, the top of the ADI carrier conveying assembly line mechanism is equipped with serpentine walking surface array photographing mechanism, the serpentine walking surface array photographing mechanism is fixedly installed in one side of workbench, the end of the workbench away from serpentine walking surface array photographing mechanism is fixedly installed with empty ADI carrier backflow mechanism.The utility model can detect camera assembly in three groups of ADI carrier simultaneously, and its beat can be as high as 0.5S / PCS;The utility model utilizes the CCD of AOI and optical principle, can realize nondestructive testing to the appearance of mobile phone middle frame.

Description

Technical Field

[0001] This utility model relates to the field of mobile phone camera detection technology, specifically to an optical detection device for scratches on mobile phone camera components. Background Technology

[0002] In the production and assembly process of camera components in the mobile phone industry, there are many surface defects such as scratches caused by assembly and handling. The main forms of scratch defects caused during the production and assembly of mobile phone camera components include internal scratches, external scratches, glass edge chipping, and glue overflow. These defects caused in the process need to be screened and removed online using AOI equipment while production and assembly are in progress. This can prevent defective products from flowing into the downstream processes, thus creating more defective products, and can also prevent batch scratches caused by equipment jig malfunctions.

[0003] Currently, the main methods used in the industry to detect scratches on the appearance of mobile phone camera components are: after the camera components are assembled and removed from the machine, manual offline inspection of the scratches on the mobile phone camera components is carried out. The drawback of this method is that it cannot detect defects caused by defective products in the later process in a timely manner, nor can it detect batch defects caused by equipment and fixtures in a timely manner, which has a lag effect. To address this issue, we propose an optical inspection device for scratches on mobile phone camera components to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an optical detection device for scratches on mobile phone camera components, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an optical inspection device for scratches on mobile phone camera components, comprising a frame, a worktable fixedly mounted on the frame, multiple sets of product lifting and positioning fixture mechanisms fixedly mounted at the top center of the worktable, an ADI carrier conveyor assembly line mechanism at the top of the multiple sets of product lifting and positioning fixture mechanisms, an ADI carrier conveyor assembly line mechanism at the bottom end of the ADI carrier conveyor assembly line mechanism fixedly connected to the top of the worktable, a serpentine area array imaging mechanism at the top of the ADI carrier conveyor assembly line mechanism, a serpentine area array imaging mechanism fixedly mounted on one side of the worktable, and an empty ADI carrier return mechanism fixedly mounted at the end of the worktable away from the serpentine area array imaging mechanism.

[0006] Preferably, the bottom of the frame is equipped with multiple shock-absorbing feet, the perimeter of the frame is fixedly equipped with a fence, the top of the frame is fixedly equipped with an FFU, and the top two sides of the frame are respectively fixedly equipped with tri-color lights.

[0007] Preferably, a power interface and an air source interface are fixedly installed on both sides of the bottom of the workbench, an electrical control box is fixedly installed on the bottom of the workbench, a monitor is mounted on the frame via a bracket, and a keyboard and mouse are provided at the bottom of the monitor.

[0008] Preferably, the ADI vehicle conveyor assembly line mechanism includes an ADI vehicle conveyor, an inlet blocking and dividing cylinder, a first set of ADI vehicle positioning sensors, a second set of ADI vehicle positioning sensors, and a third set of ADI vehicle positioning sensors. The ADI vehicle conveyor is fixedly installed on the top of the workbench. An inlet blocking and dividing cylinder is installed at the bottom of one end of the ADI vehicle conveyor. The first set of ADI vehicle positioning sensors, the second set of ADI vehicle positioning sensors, and the third set of ADI vehicle positioning sensors are sequentially fixedly installed on the ADI vehicle conveyor along its length away from the inlet blocking and dividing cylinder.

[0009] Preferably, the product lifting and positioning fixture mechanism includes a positioning blocking cylinder, a positioning lifting cylinder, an ADI carrier positioning platform, and a mounting frame. The bottom end of the mounting frame is fixedly connected to a workbench, and the top end of the mounting frame is fixedly connected to the positioning lifting cylinder. The drive end of the positioning lifting cylinder is fixedly connected to the ADI carrier positioning platform. A positioning blocking cylinder is provided on one side of the ADI carrier positioning platform. The positioning blocking cylinder is fixedly installed on one side of the mounting frame, and the ADI carrier positioning platform is located at the bottom of the ADI carrier conveyor.

[0010] Preferably, the serpentine positioning area array imaging mechanism includes a Y-axis servo displacement module, an X-axis servo displacement module, a Z-axis servo displacement module, a first group of area array cameras, a second group of area array cameras, a third group of area array cameras, and a support frame. The Y-axis servo displacement module is fixedly mounted on the worktable, and the drive end of the Y-axis servo displacement module is fixedly connected to the support frame. An X-axis servo displacement module is fixedly mounted on one end of the support frame. A Z-axis servo displacement module and the first group of area array cameras are fixedly mounted on both sides of the drive end of the X-axis servo displacement module, respectively. The drive end of the Z-axis servo displacement module is fixedly mounted on the second group of area array cameras and the third group of area array cameras, respectively.

[0011] Preferably, the empty ADI vehicle return mechanism includes a return line conveyor and a return line cover plate. The return line conveyor is fixedly installed at one end of the workbench, and multiple return line cover plates are fixedly installed on the return line conveyor.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model can simultaneously detect camera components in three ADI vehicles, with a cycle time of up to 0.5 seconds per unit. 2. This utility model utilizes the CCD and optical principles of AOI to achieve non-destructive testing of the appearance of the mobile phone frame; 3. This utility model is an online detection mode, which can screen out scratches and defects generated during the production and assembly process online; 4. This utility model adopts a serpentine movement in the XY direction to achieve high-speed photography and image capture; 5. This utility model adopts direct testing in the ADI fixture, thereby avoiding further scratching of the product during the testing process. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model from another perspective; Figure 3 This is a schematic diagram of the internal structure of the frame of this utility model; Figure 4 This is a schematic diagram of the internal structure of the frame of this utility model from another perspective; Figure 5 This is a schematic diagram of the ADI vehicle conveyor assembly line mechanism in this utility model; Figure 6 This is a schematic diagram of the positioning and blocking cylinder structure in this utility model; Figure 7 This is a schematic diagram of the serpentine movement area array imaging mechanism in this utility model; Figure 8 This is a schematic diagram of the serpentine movement area array imaging mechanism of this utility model from another perspective. Figure 9 This is a schematic diagram of the hollow ADI carrier recirculation mechanism of this utility model.

[0014] In the diagram: 1. Vibration-damping feet; 2. Keyboard and mouse; 3. Monitor; 4. Tri-color LED; 5. Power interface; 6. Air source interface; 7. Frame; 8. Electrical control box; 9. FFU; 10. ADI carrier conveyor assembly line mechanism; 20. ADI carrier conveyor; 21. Inlet blocking and dividing cylinder; 22. First group of ADI carrier positioning sensors; 23. Second group of ADI carrier positioning sensors; 24. Third group of ADI carrier positioning sensors; 11. Product lifting and positioning fixture mechanism; 25. Positioning blocking cylinder. Cylinder 30, Positioning and Lifting Cylinder 31, ADI Vehicle Positioning Platform 32, Mounting Frame 33, Serpentine Movement Area Array Camera Mechanism 12, Y-axis Servo Displacement Module 40, X-axis Servo Displacement Module 41, Z-axis Servo Displacement Module 42, First Group Area Array Camera 43, Second Group Area Array Camera 44, Third Group Area Array Camera 45, Support Frame 46, Empty ADI Vehicle Return Mechanism 13, Return Line Conveyor 50, Return Line Cover Plate 51, Fence 14, Workbench 15. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0016] Reference Figure 1-3 This is the first embodiment of the present invention. This embodiment provides an optical inspection device for scratches on mobile phone camera components, including a frame 7. A worktable 15 is fixedly installed on the frame 7. Multiple sets of product lifting and positioning fixture mechanisms 11 are fixedly installed at the top center of the worktable 15. An ADI carrier conveying assembly line mechanism 10 is provided at the top of the multiple sets of product lifting and positioning fixture mechanisms 11. The bottom end of the ADI carrier conveying assembly line mechanism 10 is fixedly connected to the top of the worktable 15. A serpentine area array imaging mechanism 12 is provided at the top of the ADI carrier conveying assembly line mechanism 10. The serpentine area array imaging mechanism 12 is fixedly installed on one side of the worktable 15. An empty ADI carrier return mechanism 13 is fixedly installed at the end of the worktable 15 away from the serpentine area array imaging mechanism 12. Example

[0017] Reference Figure 1-9 This is the second embodiment of the present invention, which is based on the previous embodiment. Specifically, multiple shock-absorbing feet 1 are installed at the bottom of the frame 7. The shock-absorbing feet 1 reduce the vibration of the overall equipment during movement, extend the service life, and improve the operating accuracy. A fence 14 is fixedly installed around the frame 7 to shield and protect the internal components. An FFU9 is fixedly installed at the top of the frame 7 to purify the air in the working environment. Three-color lights 4 are fixedly installed on both sides of the top of the frame 7 to indicate the operating status, fault warnings, and operation prompts of the equipment.

[0018] Specifically, a power interface 5 and an air source interface 6 are fixedly installed on both sides of the bottom of the workbench 15. An electrical control box 8 is fixedly installed on the bottom of the workbench 15. A monitor 3 is mounted on the frame 7 via a bracket. A keyboard and mouse 2 are provided at the bottom of the monitor 3. The monitor 3 displays various data of the equipment. The keyboard and mouse 2 are set up to facilitate the use of the operator.

[0019] Specifically, the ADI vehicle conveyor assembly line mechanism 10 includes an ADI vehicle conveyor 20, an inlet blocking and distributing cylinder 21, a first set of ADI vehicle positioning sensors 22, a second set of ADI vehicle positioning sensors 23, and a third set of ADI vehicle positioning sensors 24. The ADI vehicle conveyor 20 is fixedly installed on the top of the workbench 15. An inlet blocking and distributing cylinder 21 is installed at the bottom of one end of the ADI vehicle conveyor 20. The first set of ADI vehicle positioning sensors 22, the second set of ADI vehicle positioning sensors 23, and the third set of ADI vehicle positioning sensors 24 are fixedly installed sequentially along the length direction away from the inlet blocking and distributing cylinder 21. The ADI vehicle conveyor assembly line mechanism 10 conveys the ADI vehicles.

[0020] Specifically, the product lifting and positioning fixture mechanism 11 includes a positioning blocking cylinder 30, a positioning lifting cylinder 31, an ADI carrier positioning platform 32, and a mounting frame 33. The bottom end of the mounting frame 33 is fixedly connected to the workbench 15, and the top end of the mounting frame 33 is fixedly connected to the positioning lifting cylinder 31. The drive end of the positioning lifting cylinder 31 is fixedly connected to the ADI carrier positioning platform 32. A positioning blocking cylinder 30 is provided on one side of the ADI carrier positioning platform 32. The positioning blocking cylinder 30 is fixedly installed on one side of the mounting frame 33. The ADI carrier positioning platform 32 is located at the bottom of the ADI carrier conveyor 20. The product lifting and positioning fixture mechanism 11 lifts the ADI carrier conveyed by the ADI carrier conveying assembly line mechanism 10.

[0021] Specifically, the serpentine area array camera mechanism 12 includes a Y-axis servo displacement module 40, an X-axis servo displacement module 41, a Z-axis servo displacement module 42, a first group of area array cameras 43, a second group of area array cameras 44, a third group of area array cameras 45, and a support frame 46. The Y-axis servo displacement module 40 is fixedly mounted on the worktable 15. The drive end of the Y-axis servo displacement module 40 is fixedly connected to the support frame 46. The X-axis servo displacement module 41 is fixedly mounted on one end of the support frame 46. The Z-axis servo displacement module 42 and the first group of area array cameras 43 are fixedly mounted on both sides of the drive end of the X-axis servo displacement module 41, respectively. The second group of area array cameras 44 and the third group of area array cameras 45 are fixedly mounted on the drive end of the Z-axis servo displacement module 42, respectively. The serpentine area array camera mechanism 12 performs aerial photography using a serpentine movement motion of the mobile phone camera components.

[0022] Specifically, the empty ADI vehicle return mechanism 13 includes a return line conveyor 50 and a return line cover plate 51. The return line conveyor 50 is fixedly installed at one end of the workbench 15, and multiple return line cover plates 51 are fixedly installed on the return line conveyor 50.

[0023] The working principle and process are as follows: A tray of ADI carriers carrying 24 mobile phone camera components flows from the upstream assembly equipment into the equipment via the ADI carrier conveyor 20 in the ADI carrier conveyor assembly line mechanism 10. The entry blocking and tray-separating cylinder 21 blocks and separates the ADI carriers, ensuring that only one tray of ADI carriers flows into the machine each time. When the first set of ADI carrier positioning sensors 22 senses the ADI carrier, the positioning lifting cylinder 31 and the ADI carrier positioning platform 32 in the first product lifting and positioning fixture mechanism 11 lift and position the ADI carrier carrying the 24 mobile phone camera components. The first set of area array cameras 43 in the serpentine area array imaging mechanism 12 then moves through the Y-axis servo displacement module 40. The X-axis servo displacement module 41 and Z-axis servo displacement module 42 perform a serpentine movement photography method for aerial photography. After completion, the positioning lifting cylinder 31 and ADI carrier positioning platform 32 in the first product lifting and positioning fixture mechanism 11 lower the ADI carrier carrying 24 mobile phone camera component products onto the ADI carrier conveyor 20 and continue to flow downwards. When the second set of ADI carrier positioning sensors 23 senses the ADI carrier, the positioning lifting cylinder 31 and ADI carrier positioning platform 32 in the second product lifting and positioning fixture mechanism 11 lift and position the ADI carrier carrying 24 mobile phone camera component products. The second set of area array cameras 44 in the serpentine movement area array photography mechanism 12 then captures the images via the Y-axis. The servo displacement module 40, X-axis servo displacement module 41, and Z-axis servo displacement module 42 perform a serpentine movement photography method for aerial photography. After completion, the positioning lifting cylinder 31 and ADI carrier positioning platform 32 in the second product lifting and positioning fixture mechanism 11 lower the ADI carrier carrying 24 mobile phone camera component products onto the ADI carrier conveyor 20 and continue to flow downwards. When the third set of ADI carrier positioning sensors 24 senses the ADI carrier, the positioning lifting cylinder 31 and ADI carrier positioning platform 32 in the third product lifting and positioning fixture mechanism 11 lift and position the ADI carrier carrying 24 mobile phone camera component products. The third set of area array cameras in the serpentine movement area array photography mechanism 12 then captures the images. The machine 45 performs aerial photography using a serpentine movement method via the Y-axis servo displacement module 40, X-axis servo displacement module 41, and Z-axis servo displacement module 42. After completion, the positioning and lifting cylinder 31 in the third product lifting and positioning fixture mechanism 11 and the ADI carrier positioning platform 32 lower the ADI carrier carrying 24 mobile phone camera component products onto the ADI carrier conveyor 20 and continue to flow to the unloading and sorting equipment. The obtained data is transmitted to the computer in real time, and the software AI algorithm analyzes and judges whether the mobile phone camera scratch appearance is OK or NG. The unloading and sorting machine sorts OK and NG products, while the empty ADI carrier is returned by the return line conveyor 50 in the empty ADI carrier return mechanism 13.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An optical inspection device for scratches on mobile phone camera components, comprising a frame (7), wherein a worktable (15) is fixedly mounted on the frame (7), characterized in that: Multiple sets of product lifting and positioning fixture mechanisms (11) are fixedly installed at the top center of the workbench (15). The top of the multiple sets of product lifting and positioning fixture mechanisms (11) is provided with an ADI vehicle conveyor assembly line mechanism (10). The bottom end of the ADI vehicle conveyor assembly line mechanism (10) is fixedly connected to the top of the workbench (15). The top of the ADI vehicle conveyor assembly line mechanism (10) is provided with a serpentine movement area array imaging mechanism (12). The serpentine movement area array imaging mechanism (12) is fixedly installed on one side of the workbench (15). An empty ADI vehicle return mechanism (13) is fixedly installed at the end of the workbench (15) away from the serpentine movement area array imaging mechanism (12).

2. The optical detection device for scratches on mobile phone camera components according to claim 1, characterized in that: The bottom of the frame (7) is equipped with multiple shock-absorbing feet (1), the perimeter of the frame (7) is fixedly equipped with a fence (14), the top of the frame (7) is fixedly equipped with an FFU (9), and the top two sides of the frame (7) are respectively fixedly equipped with tri-color lights (4).

3. The optical detection device for scratches on mobile phone camera components according to claim 1, characterized in that: The bottom sides of the workbench (15) are respectively fixedly installed with a power interface (5) and an air source interface (6). The bottom of the workbench (15) is fixedly installed with an electrical control box (8). The frame (7) is mounted with a monitor (3) by a bracket. The bottom of the monitor (3) is provided with a keyboard and mouse (2).

4. The optical detection device for scratches on mobile phone camera components according to claim 1, characterized in that: The ADI vehicle conveyor assembly line mechanism (10) includes an ADI vehicle conveyor (20), an inlet blocking disc cylinder (21), a first set of ADI vehicle positioning sensors (22), a second set of ADI vehicle positioning sensors (23), and a third set of ADI vehicle positioning sensors (24). The ADI vehicle conveyor (20) is fixedly installed on the top of the workbench (15). An inlet blocking disc cylinder (21) is installed at the bottom of one end of the ADI vehicle conveyor (20). The first set of ADI vehicle positioning sensors (22), the second set of ADI vehicle positioning sensors (23), and the third set of ADI vehicle positioning sensors (24) are fixedly installed in sequence along the length direction away from the inlet blocking disc cylinder (21) of the ADI vehicle conveyor (20).

5. The optical detection device for scratches on mobile phone camera components according to claim 4, characterized in that: The product lifting and positioning fixture mechanism (11) includes a positioning blocking cylinder (30), a positioning lifting cylinder (31), an ADI vehicle positioning platform (32), and a mounting frame (33). The bottom end of the mounting frame (33) is fixedly connected to the workbench (15), and the top end of the mounting frame (33) is fixedly connected to the positioning lifting cylinder (31). The driving end of the positioning lifting cylinder (31) is fixedly connected to the ADI vehicle positioning platform (32). A positioning blocking cylinder (30) is provided on one side of the ADI vehicle positioning platform (32). The positioning blocking cylinder (30) is fixedly installed on one side of the mounting frame (33), and the ADI vehicle positioning platform (32) is located at the bottom of the ADI vehicle conveyor (20).

6. The optical detection device for scratches on mobile phone camera components according to claim 1, characterized in that: The serpentine positioning area array imaging mechanism (12) includes a Y-axis servo displacement module (40), an X-axis servo displacement module (41), a Z-axis servo displacement module (42), a first group of area array cameras (43), a second group of area array cameras (44), a third group of area array cameras (45), and a support frame (46). The Y-axis servo displacement module (40) is fixedly installed on the worktable (15). The drive end of the Y-axis servo displacement module (40) is fixedly connected to the support frame (46). The X-axis servo displacement module (41) is fixedly installed on one end face of the support frame (46). The Z-axis servo displacement module (42) and the first group of area array cameras (43) are fixedly installed on both sides of the drive end of the X-axis servo displacement module (41). The second group of area array cameras (44) and the third group of area array cameras (45) are fixedly installed on the drive end of the Z-axis servo displacement module (42).

7. The optical detection device for scratches on mobile phone camera components according to claim 1, characterized in that: The empty ADI vehicle return mechanism (13) includes a return line conveyor (50) and a return line cover plate (51). The return line conveyor (50) is fixedly installed at one end of the workbench (15), and multiple return line cover plates (51) are fixedly installed on the return line conveyor (50).

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