Mobile phone back cover automatic detection device

Abstract

The utility model provides a kind of mobile phone back cover automation detection device, it is related to mobile phone back cover detection technical field.The mobile phone back cover automation detection device, including frame body, the frame body upper end is fixed with support, the support upper end middle part is provided with visual detection camera, the frame body one corner is fixed with driving motor, the driving motor driving end is fixed with driving roller, the driving roller is connected with driven roller by conveyor belt;The other end of the driving roller is provided with connecting structure, two limit supports are arranged on connecting structure;Connecting structure can be with two limit supports to move in the reverse direction with the width direction of frame body.This mobile phone back cover automation detection device, through driving motor driving driving roller rotates operation, on the one hand, realize the effect of automatic middle part limiting, reach the effect of improving the use effect of automation detection device, on the other hand, realize automatic cleaning effect, reach the effect of improving the use convenience of automation detection device.

Description

Technical Field

[0001] This utility model relates to an automated testing device for mobile phone back covers, belonging to the field of mobile phone back cover testing technology. Background Technology

[0002] With the rapid iteration of modern electronic products, smartphones have become deeply integrated into people's daily lives, becoming an indispensable core tool. Whether for leisure activities like gaming and watching videos, or for work and social communication and information access, their functions cover every aspect of life. As a key component of smartphones, the back cover not only serves as a structural element to secure internal precision components such as the battery, motherboard, and camera module, but also directly protects the internal hardware from external impacts, dust, and moisture. Furthermore, its design directly affects the overall aesthetics and user experience of the phone. Therefore, surface quality inspection is a crucial step in the production process of phone back covers: automated inspection devices must use visual inspection systems to rigorously check the surface for defects such as scratches, dents, color differences, and stains. If such problems are not detected in time, it will not only reduce the product's aesthetics and user experience, but may also lead to a decrease in internal protective performance due to surface damage, ultimately affecting the overall quality and lifespan of the phone.

[0003] While existing automated mobile phone back cover inspection devices can meet daily inspection needs, they still suffer from two major problems in practical applications, limiting their effectiveness and convenience. These are as follows:

[0004] Firstly, the performance is unsatisfactory. Due to the vibration generated during the operation of the conveyor belt, the back cover of the mobile phone to be inspected is prone to positional displacement, often exceeding the "most reasonable inspection range" preset by the visual inspection equipment. This range is the key area for the equipment to achieve high-precision identification of defects such as scratches, color differences, and assembly gaps on the back cover. The displacement will directly lead to a decrease in the accuracy of the inspection data, such as missing minor flaws or misjudging qualified products, ultimately affecting the reliability of automated inspection.

[0005] Secondly, it lacks ease of use. During the inspection process, dust and fine debris generated during equipment operation easily accumulate on the lens surface of the visual inspection camera. These contaminants can interfere with light transmission, leading to reduced image clarity, such as blurry images and speckled appearance, thus affecting the inspection system's efficiency in identifying defects. To avoid this problem, staff need to periodically stop the machine to disassemble the protective structure and clean the lens, which not only increases manual maintenance costs but may also disrupt the continuous operation of the inspection line due to frequent operations, causing inconvenience in actual use. Utility Model Content

[0006] In view of the shortcomings of the prior art, this utility model provides an automated detection device for mobile phone back covers, which overcomes the shortcomings of the prior art and effectively solves the problems of poor performance and lack of ease of use.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An automated inspection device for mobile phone back covers includes a frame, a bracket fixed to the upper end of the frame, a visual inspection camera disposed in the middle of the upper end of the bracket, a drive motor fixed to one corner of the frame, an active roller fixed to the drive end of the drive motor, and the active roller being connected to a driven roller via a conveyor belt.

[0009] The other end of the active roller is provided with a connecting structure, on which two limiting frames are provided; the connecting structure can move in the opposite direction of the frame width with the two limiting frames to push the mobile phone back cover conveyed on the conveyor belt to the central area.

[0010] Preferably, the connecting structure includes a fixed frame, a fixed rod fixed to the other end of the fixed frame, a guide frame slidably connected to the outer surface of the fixed rod, a guide groove in the middle of the guide frame, a sliding frame fixed to the lower end of the guide frame, a stabilizing frame slidably connected to the outer surface of the sliding frame, a stabilizing groove in the middle of the stabilizing frame, a support frame fixed to the other end of the sliding frame, connecting frames rotatably connected to both ends of the support frame, and limit frames rotatably connected to the other ends of both connecting frames.

[0011] Preferably, the driving roller and the driven roller are connected by a conveyor belt. The outer surface of the driving roller is rotatably connected to one end of the frame, and the outer surface of the driven roller is rotatably connected to the other end of the frame. One end of the fixed frame is fixed to one end of the driving roller, and the other end of the fixed frame is fixed to one end of the fixed rod. The outer surface of the fixed rod is slidably connected to the inner wall of the guide groove.

[0012] Preferably, the guide groove passes through the middle of the guide frame, the lower end of the guide frame is fixed to one end of the sliding frame, the vertical section of the guide frame is T-shaped, the outer surface of the sliding frame is slidably connected to the inner wall of the stabilizing groove, the stabilizing groove passes through the middle of the stabilizing frame, the upper end of the stabilizing frame is fixed to one side of the frame body, and the cross section of the sliding frame is L-shaped.

[0013] Preferably, the other end of the sliding frame is fixed to the middle of the support frame, the two ends of the support frame are rotatably connected to the near ends of the two connecting frames, the far ends of the two connecting frames are rotatably connected to the far ends of the two limiting frames, the outer surfaces of the two limiting frames are slidably connected to the inner walls of both sides of the bracket, the two limiting frames are arranged opposite to each other, and the cross section of each limiting frame is T-shaped.

[0014] Preferably, each of the two limiting frames is fixed with a connecting block on the opposite side, and a brush holder is fixed to the other end of each of the two connecting blocks.

[0015] Preferably, the two connecting blocks are fixed at opposite ends on opposite sides of the two limiting frames, the vertical cross-sections of the two connecting blocks are L-shaped, the two brush holders are fixed at opposite ends on near ends of the two connecting blocks, and the bristles of the two brush holders are in contact with the surface of the visual inspection camera lens.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. This automated mobile phone back cover inspection device uses a drive motor to drive the active roller to rotate, so that the fixed frame, fixed rod, guide frame, guide groove, sliding frame, stabilizing frame, stabilizing groove, support frame, connecting frame, and limiting frame work together to achieve automatic center limiting effect. This effectively avoids the problem of missed or false detection caused by the vibration and deviation of the mobile phone back cover due to the conveyor belt, thereby improving the effect of the automated inspection device.

[0018] 2. This automated mobile phone back cover inspection device uses a drive motor to drive the active roller to rotate, enabling the limit frame, connecting block, brush frame, bracket, and visual inspection camera to work together to achieve an automatic cleaning effect, eliminating the need for manual cleaning by staff and thus improving the ease of use of the automated inspection device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a front sectional view of the frame of this utility model;

[0021] Figure 3 This is a rear sectional view of the frame of this utility model;

[0022] Figure 4 This is a partial structural schematic diagram of the present invention.

[0023] In the diagram: 1. Frame; 2. Drive motor; 3. Drive roller; 4. Conveyor belt; 5. Driven roller; 6. Fixed frame; 7. Fixed rod; 8. Guide frame; 9. Guide groove; 10. Sliding frame; 11. Stabilizing frame; 12. Stabilizing groove; 13. Support frame; 14. Connecting frame; 15. Limiting frame; 16. Connecting block; 17. Brush frame; 18. Bracket; 19. Visual inspection camera. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] Example 1

[0026] This utility model provides an automated testing device for mobile phone back covers.

[0027] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 The system includes a frame 1, with a bracket 18 fixed to the upper end of the frame 1. A visual inspection camera 19 is installed in the middle of the upper end of the bracket 18. A drive motor 2 is fixed to one corner of the frame 1. An active roller 3 is fixed to the drive end of the drive motor 2. The active roller 3 is connected to a driven roller 5 through a conveyor belt 4. A connecting structure is provided at the other end of the active roller 3. The connecting structure includes a fixed frame 6. A fixed rod 7 is fixed to the other end of the fixed frame 6. A guide frame 8 is slidably connected to the outer surface of the fixed rod 7. A guide groove 9 is opened in the middle of the guide frame 8. A sliding frame 10 is fixed to the lower end of the guide frame 8. A stabilizing frame 11 is slidably connected to the outer surface of the sliding frame 10. A stabilizing groove 12 is opened in the middle of the stabilizing frame 11. A support frame 13 is fixed to the other end of the sliding frame 10. A connecting frame 14 is rotatably connected to both ends of the support frame 13. A limit frame 15 is rotatably connected to the other end of both connecting frames 14.

[0028] Please refer to it again. Figure 1 , Figure 2 , Figure 3 and Figure 4 It is worth noting that the driving roller 3 and the driven roller 5 are connected by a conveyor belt 4. The outer surface of the driving roller 3 is rotatably connected to one end of the frame 1, and the outer surface of the driven roller 5 is rotatably connected to the other end of the frame 1. One end of the fixed frame 6 is fixed to one end of the driving roller 3, and the other end of the fixed frame 6 is fixed to one end of the fixed rod 7. The outer surface of the fixed rod 7 is slidably connected to the inner wall of the guide groove 9. The guide groove 9 passes through the middle of the guide frame 8. The lower end of the guide frame 8 is fixed to one end of the sliding frame 10. The vertical section of the guide frame 8 is T-shaped. The outer surface of the sliding frame 10 is slidably connected to the stable... The inner wall of the fixed groove 12 is through the middle of the stabilizer 11. The upper end of the stabilizer 11 is fixed to one side of the frame 1. The sliding frame 10 has an L-shaped cross section. The other end of the sliding frame 10 is fixed to the middle of the support frame 13. The two ends of the support frame 13 are rotatably connected to the near ends of the two connecting frames 14. The far ends of the two connecting frames 14 are rotatably connected to the far ends of the two limiting frames 15. The outer surfaces of the two limiting frames 15 are slidably connected to the inner walls of both sides of the bracket 18. The two limiting frames 15 are arranged opposite to each other. The cross section of each limiting frame 15 is T-shaped.

[0029] In use, the present invention drives the active roller 3 to rotate through the drive motor 2, so that the active roller 3 and the driven roller 5 are linked by friction, and together drive the conveyor belt 4 to rotate at a constant speed to realize the continuous conveying operation of the back cover of the mobile phone to be tested.

[0030] Meanwhile, the fixed frame 6, which is fixedly connected to the other end of the active roller 3, rotates synchronously with the active roller 3, thereby driving the fixed rod 7 fixed thereto to perform circular motion. Under the constraint of the guide groove 9 preset in the frame 1, the circular motion of the fixed rod 7 is converted into reciprocating linear motion and the power is transmitted to the guide frame 8 connected thereto. When the guide frame 8 moves up and down under the drive of the fixed rod 7, the sliding frame 10 fixed at its lower end slides along the stabilizing groove 12 opened by the stabilizing frame 11 fixed on one side of the frame 1. The stabilizing groove 12 can limit the lateral displacement of the sliding frame 10, ensuring that the sliding frame 10 only makes stable vertical movement. The support frame 13 fixed thereto also moves up and down synchronously with the sliding frame 10. When the support frame 13 moves up and down, it is connected to two connecting frames at its two ends through rotation. 14. The two limiting frames 15 slide in opposite directions along the preset track of the bracket 18. That is, when one limiting frame 15 moves inward, the other limiting frame 15 moves inward simultaneously. When the two limiting frames 15 approach each other to the preset position, they push the mobile phone back cover conveyed on the conveyor belt 4, accurately pushing it to the center area of ​​the bracket 18. The pushed mobile phone back cover will be stably positioned directly below the lens of the visual inspection camera 19 on the bracket 18. This position is the "most reasonable detection range" of the camera, which can ensure image clarity and defect recognition accuracy, and achieve the effect of automatic center limiting. This effectively avoids the problem of missed detection and misjudgment caused by the vibration and displacement of the mobile phone back cover due to the conveyor belt 4, thereby improving the effect of the automated inspection device.

[0031] Example 2

[0032] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 An automatic cleaning function has been added based on Embodiment 1;

[0033] Please refer to it again. Figure 1 , Figure 2 , Figure 3 and Figure 4 It is worth noting that each of the two limiting frames 15 has a connecting block 16 fixed on its opposite side, and a brush holder 17 is fixed on the other end of each of the two connecting blocks 16. The opposite ends of the two connecting blocks 16 are fixed on the opposite sides of the two limiting frames 15. The vertical cross-sections of the two connecting blocks 16 are both L-shaped. The opposite ends of the two brush holders 17 are fixed on the near ends of the two connecting blocks 16. The bristles of the two brush holders 17 are in contact with the lens surface of the visual inspection camera 19.

[0034] In use, this invention works as follows: the drive motor 2 drives the active roller 3 to rotate, causing the fixed frame 6, which is fixed to the other end of the active roller 3, to move the fixed rod 7. With the cooperation of the guide groove 9, the fixed rod 7 transmits power through the guide frame 8, thereby driving the sliding frame 10 to slide up and down under the stabilizing effect of the stabilizing groove 12 opened in the stabilizing frame 11. The sliding frame 10, which slides up and down, drives the two limiting frames 15 to move in opposite directions under the limiting effect of the inner wall of the bracket 18 through the connecting frame 14 connected to its two ends. When the two limiting frames 15 approach each other, the two connecting blocks 16, which are fixed to the opposite side of the two limiting frames 15, move towards each other synchronously. The two connecting blocks 16 further drive the two brush frames 17, which are fixed to their respective near ends, to move towards each other. The two brush frames 17, which are close to each other, use their own bristles to sweep and clean the dust on the surface of the lens on both sides of the visual inspection camera 19, thus achieving an automatic cleaning effect without the need for manual cleaning by the staff, thereby improving the convenience of using the automated inspection device.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automated inspection device for mobile phone back covers, comprising a frame (1), wherein a bracket (18) is fixed to the upper end of the frame (1), and a visual inspection camera (19) is disposed in the middle of the upper end of the bracket (18), characterized in that: A drive motor (2) is fixed at one corner of the frame (1), and an active roller (3) is fixed at the drive end of the drive motor (2). The active roller (3) is connected to the driven roller (5) through a conveyor belt (4). The other end of the active roller (3) is provided with a connecting structure, on which two limit frames (15) are provided; the connecting structure can move the two limit frames (15) in the opposite direction of the width of the frame (1) to push the mobile phone back cover conveyed on the conveyor belt (4) to the central area.

2. The automated detection device for mobile phone back covers according to claim 1, characterized in that: The connection structure includes a fixing frame (6), and a fixing rod (7) is fixed at the other end of the fixing frame (6). A guide frame (8) is slidably connected to the outer surface of the fixing rod (7). The guide frame (8) has a guide groove (9) in the middle; The guide frame (8) is fixed with a sliding frame (10) at its lower end. A stabilizing frame (11) is slidably connected to the outer surface of the sliding frame (10). A stabilizing groove (12) is provided in the middle of the stabilizing frame (11). A support frame (13) is fixed to the other end of the sliding frame (10). A connecting frame (14) is rotatably connected to both ends of the support frame (13). A limit frame (15) is rotatably connected to the other end of both connecting frames (14).

3. The automated detection device for mobile phone back covers according to claim 2, characterized in that: The active roller (3) and the driven roller (5) are connected by a conveyor belt (4). The outer surface of the active roller (3) is rotatably connected to one end of the frame (1), and the outer surface of the driven roller (5) is rotatably connected to the other end of the frame (1). One end of the fixing frame (6) is fixed to one end of the drive roller (3), and the other end of the fixing frame (6) is fixed to one end of the fixing rod (7). The outer surface of the fixing rod (7) is slidably connected to the inner wall of the guide groove (9).

4. The automated detection device for mobile phone back covers according to claim 2, characterized in that: The guide groove (9) runs through the middle of the guide frame (8), the lower end of the guide frame (8) is fixed to one end of the sliding frame (10), and the vertical section of the guide frame (8) is T-shaped. The outer surface of the sliding frame (10) is slidably connected to the inner wall of the stabilizing groove (12), the stabilizing groove (12) passes through the middle of the stabilizing frame (11), the upper end of the stabilizing frame (11) is fixed to one side of the frame body (1), and the cross section of the sliding frame (10) is L-shaped.

5. The automated detection device for mobile phone back covers according to claim 2, characterized in that: The other end of the sliding frame (10) is fixed to the middle of the support frame (13). The two ends of the support frame (13) are rotatably connected to the near ends of the two connecting frames (14). The far ends of the two connecting frames (14) are rotatably connected to the far ends of the two limiting frames (15). The outer surfaces of the two limiting frames (15) are slidably connected to the inner walls on both sides of the bracket (18). The two limiting frames (15) are arranged opposite to each other. The cross section of each limiting frame (15) is T-shaped.

6. The automated detection device for mobile phone back covers according to claim 1, characterized in that: Each of the two limiting frames (15) has a connecting block (16) fixed on its opposite side, and a brush holder (17) is fixed at the other end of each of the two connecting blocks (16).

7. The automated detection device for mobile phone back covers according to claim 6, characterized in that: The two connecting blocks (16) are fixed at opposite ends to the two limiting frames (15) at opposite sides. The vertical cross-sections of the two connecting blocks (16) are both L-shaped. The two brush holders (17) are fixed at opposite ends to the two connecting blocks (16) at near ends. The bristles of the two brush holders (17) are in contact with the lens surface of the visual inspection camera (19).

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