Vision-based detection equipment for detecting length and width in mobile phone

Abstract

The utility model discloses a vision-based mobile phone internal length and width detection device which comprises a rack, a case is fixedly installed at the top of the rack, an opening is formed in one side of the case, a vision detection system is arranged in the case, a plurality of variable-angle line light sources are arranged at the bottom of the vision detection system, and the variable-angle line light sources are arranged in the case. Translation assemblies used for moving the visual inspection system in the X-axis direction are arranged on the inner walls of the two sides of the machine box, the moving ends of the translation assemblies are connected with mounting plates, through cooperative use of the two feeding stations and the two power assemblies, product exchange of the feeding station and the inspection station of products is completed, feeding and discharging do not occupy the inspection time, and the production efficiency is improved. The variable-angle line light source provides lighting for visual imaging and illuminates product features needing to be measured, the large-view visual detection system completes measurement of the inner length and width size of a product through visual imaging, and rapid batch detection of the inner length and width size of the front face and the back face of the middle frame of the mobile phone is achieved.

Description

Technical Field

[0001] This utility model relates to the field of mobile phone manufacturing technology, specifically to a vision-based device for detecting the internal length and width of a mobile phone. Background Technology

[0002] As competition in the smartphone market intensifies, consumers are demanding higher and higher quality from their phones. This compels smartphone manufacturers to strictly control the quality of every step in the production process, including the dimensional accuracy of the phone's internal structure. Among the many steps in smartphone manufacturing, measuring the internal length and width dimensions of the phone is a crucial step in ensuring that the product meets design requirements and improving the user experience.

[0003] The front and back of the phone frame need to be fitted with glass screens and back covers. To ensure proper installation, the inner length and width dimensions of the front and back of the phone frame must be strictly controlled. Existing measurement methods rely on image measuring instruments or coordinate measuring machines for random sampling, which is inefficient and cannot meet the needs of large-scale inspection. Therefore, we need to propose a vision-based device for measuring the inner length and width of the phone frame. Utility Model Content

[0004] The purpose of this invention is to provide a vision-based mobile phone internal length and width detection device, which aims to solve the problem that the existing measurement methods rely on image measuring instruments or coordinate measuring machines for sampling inspection, resulting in low measurement efficiency and inability to meet the needs of large-scale inspection.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A vision-based mobile phone internal length and width inspection device includes a frame, a chassis fixedly mounted on the top of the frame, an opening on one side of the chassis, a vision inspection system inside the chassis, several variable angle line light sources at the bottom of the vision inspection system, translation components for moving the vision inspection system in the X-axis direction on the inner walls of both sides of the chassis, a mounting plate connected to the moving end of the translation components, a lifting component for moving the vision inspection system in the Z-axis direction on one side wall of the mounting plate, two sets of loading stations on the top of the frame, and two sets of power components for alternately loading materials from the two sets of loading stations inside the frame cavity.

[0007] Preferably, the translation component includes a positioning frame, with both sides of the positioning frame fixedly connected to the inner walls of both sides of the chassis. Two sets of rotating seats are fixedly connected to one side wall of the positioning frame. A first ball screw is rotatably connected to the opposite side of the two sets of rotating seats. One end of the first ball screw passes through one set of rotating seats and is connected to a first drive motor. A translation block is threadedly connected to the outer wall of the first ball screw. One side of the translation block is fixedly connected to one side of the mounting plate.

[0008] Preferably, two sets of limiting slide rods are symmetrically fixedly connected to one side wall of the positioning frame, and two sets of limiting sliders are fixedly connected to one side wall of the mounting plate, with the two sets of limiting sliders slidably connected to the two sets of limiting slide rods respectively.

[0009] Preferably, the first drive motor is fixedly installed on one side wall of one of the rotating seats, and one end of the output shaft of the first drive motor is fixedly connected to one end of the first ball screw.

[0010] Preferably, the lifting assembly includes two sets of fixing plates, both sets of fixing plates are fixedly connected to one side wall of the mounting plate, a second drive motor is fixedly connected to one side wall of one set of fixing plates, a second ball screw is rotatably mounted on the opposite side wall of the two sets of fixing plates, one end of the second ball screw passes through one set of fixing plates and is fixedly connected to the output shaft of the second drive motor, a lifting block is threadedly connected to the outer wall of the second ball screw, and the vision inspection system is fixedly connected to one side wall of the lifting block.

[0011] Preferably, two sets of vertical guide rails are fixedly connected to one side wall of the mounting plate, and guide sliders are slidably connected to one side of each of the two sets of vertical guide rails. One side of each of the two sets of guide sliders is fixedly connected to one side of the vision inspection system.

[0012] Preferably, the power assembly includes a support member, which is fixedly installed on the inner wall of the chassis. A third ball screw is rotatably mounted on the top of the support member. One end of the third ball screw is connected to a third drive motor. A movable block is threadedly connected to the outer wall of the third ball screw. The top of the movable block is fixedly connected to the bottom of the feeding station.

[0013] Preferably, a computer monitor is fixedly connected to one side wall of the chassis, and a motion control system is fixedly connected to one side of the upper surface of the frame. The computer monitor, variable angle line light source and vision detection system are all electrically connected to the motion control system through wires.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] This utility model, through the coordinated use of two sets of loading stations and two sets of power components, enables the interchange of products between the loading and inspection stations, allowing loading and unloading to not occupy inspection time. A variable-angle linear light source provides illumination for visual imaging, illuminating the product features to be measured. The large-field-of-view visual inspection system completes the measurement of the product's inner length and width dimensions through visual imaging, realizing rapid batch inspection of the inner length and width dimensions of the front and back of the mobile phone frame. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the chassis of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the visual inspection system, translation component, and lifting component of this utility model;

[0019] Figure 4 This is a schematic diagram of the material loading station and power component of this utility model.

[0020] In the diagram: 1. Frame; 2. Chassis; 3. Opening; 4. Vision inspection system; 5. Translation assembly; 501. Positioning frame; 502. Rotating seat; 503. First ball screw; 504. First drive motor; 505. Translation block; 6. Mounting plate; 7. Lifting assembly; 701. Fixing plate; 702. Second drive motor; 703. Second ball screw; 704. Lifting block; 8. Loading station; 9. Power assembly; 901. Support component; 902. Third ball screw; 903. Third drive motor; 904. Movable block; 10. Limiting slide bar; 11. Limiting slider; 12. Vertical guide rail; 13. Guide slider; 14. Computer monitor; 15. Motion control system; 16. Variable angle linear light source. Detailed Implementation

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Please see Figure 1-4 This utility model provides a technical solution:

[0023] A vision-based mobile phone internal length and width inspection device includes a frame 1, a housing 2 fixedly mounted on the top of the frame 1, an opening 3 on one side of the housing 2, and a vision inspection system 4 inside the housing 2. The vision inspection system 4 is a vision measurement system composed of a camera and lens, which completes the inspection of the internal length and width dimensions of the product through visual imaging. Several variable angle line light sources 16 are set at the bottom of the vision inspection system 4. Translation components 5 for moving the vision inspection system 4 in the X-axis direction are set on the inner walls of both sides of the housing 2. The moving end of the translation component 5 is connected to a mounting plate 6. A side wall of the mounting plate 6 is provided with a device for moving the vision inspection system 4. The system 4 has a lifting component 7 that moves in the Z-axis direction. The top of the frame 1 is equipped with two sets of loading stations 8, and the inner cavity of the frame 1 is equipped with two sets of power components 9 for alternating loading of the two sets of loading stations 8. Through the coordinated use of the two sets of loading stations 8 and the two sets of power components 9, the product interchange between the loading station and the inspection station is completed, so that loading and unloading do not occupy inspection time. The variable angle line light source 16 provides lighting for visual imaging, illuminating the product features to be measured. The large field of view visual inspection system 4 completes the measurement of the inner length and width dimensions of the product through visual imaging, realizing rapid batch inspection of the inner length and width dimensions of the front and back of the mobile phone frame.

[0024] Specifically, the operator places the product on the loading station 8, and the power component 9 drives the internal movement of the loading station 8 and the machine housing 2 until it enters the inspection station. The vision inspection system 4 is adjusted to the appropriate position by the translation component 5 and the lifting component 7, and the product can then be inspected. During the inspection process, the operator can place the product to be inspected on another loading station 8. After the previous product is inspected, it will automatically return to the loading station, and another product will then enter the inspection area. This completes the product exchange between the loading station and the inspection station, which allows loading and unloading to not occupy inspection time and helps to further improve inspection efficiency.

[0025] Furthermore, the translation component 5 includes a positioning frame 501, with both sides of the positioning frame 501 fixedly connected to the inner walls of both sides of the housing 2. Two sets of rotating seats 502 are fixedly connected to one side wall of the positioning frame 501. A first ball screw 503 is rotatably connected to the opposite side of the two sets of rotating seats 502. One end of the first ball screw 503 passes through one set of rotating seats 502 and is connected to a first drive motor 504. A translation block 505 is threadedly connected to the outer wall of the first ball screw 503. The translation block 505 serves as the moving end of the translation component 5. One side of the translation block 505 is fixedly connected to one side of the mounting plate 6. The output shaft of the first drive motor 504 can drive the first ball screw 503 to rotate in the forward or reverse direction, thereby driving the translation block 505 to reciprocate along the axial direction of the first ball screw 503. In turn, the visual inspection system 4 can be adjusted in horizontal position through the mounting plate 6.

[0026] Furthermore, two sets of limiting slide rods 10 are symmetrically fixedly connected to one side wall of the positioning frame 501, and two sets of limiting sliders 11 are fixedly connected to one side wall of the mounting plate 6. The two sets of limiting sliders 11 are slidably connected to the two sets of limiting slide rods 10 respectively. By setting the limiting slide rods 10 and the limiting sliders 11 in cooperation, the mounting plate 6 is limited, making its movement process more stable.

[0027] Furthermore, the first drive motor 504 is fixedly installed on one side wall of one of the rotating seats 502, and one end of the output shaft of the first drive motor 504 is fixedly connected to one end of the first ball screw 503. The first drive motor 504 is configured as a forward and reverse stepper motor.

[0028] In this embodiment, the lifting assembly 7 includes two sets of fixing plates 701, both sets of fixing plates 701 are fixedly connected to one side wall of the mounting plate 6. A second drive motor 702 is fixedly connected to one side wall of one set of fixing plates 701. A second ball screw 703 is rotatably mounted on the opposite side wall of the two sets of fixing plates 701. One end of the second ball screw 703 passes through one set of fixing plates 701 and is fixedly connected to the output shaft of the second drive motor 702. A lifting block 704 is threaded onto the outer wall of the second ball screw 703. The vision inspection system 4 is fixedly connected to one side wall of the lifting block 704. By setting the second drive motor 702, the second ball screw 703 and the lifting block 704 to work together, the vision inspection system 4 can be driven to perform lifting and adjustment.

[0029] Furthermore, two sets of vertical guide rails 12 are fixedly connected to one side wall of the mounting plate 6. Guide sliders 13 are slidably connected to one side of each of the two sets of vertical guide rails 12. One side of each of the two sets of guide sliders 13 is fixedly connected to one side of the vision inspection system 4. By setting the vertical guide rails 12 and guide sliders 13 in cooperation, the vision inspection system 4 is limited, making its movement process more stable.

[0030] Furthermore, the power assembly 9 includes a support 901, which is fixedly installed on the inner wall of the housing 2. A third ball screw 902 is rotatably mounted on the top of the support 901. One end of the third ball screw 902 is connected to a third drive motor 903. A movable block 904 is threadedly connected to the outer wall of the third ball screw 902. The top of the movable block 904 is fixedly connected to the bottom of the loading station 8. The motion control system 15 alternately controls the two sets of third drive motors 903, and the third drive motors 903 can drive the movable block 904 and the loading station 8 to move.

[0031] It is worth noting that a computer monitor 14 is fixedly connected to one side wall of the chassis 2, and a motion control system 15 is fixedly connected to one side of the upper surface of the rack 1. The computer monitor 14, the variable angle line light source 16, and the vision detection system 4 are all electrically connected to the motion control system 15 through wires. The circuit connection is a mature existing technology, and the specific connection method and working principle will not be elaborated here. The first drive motor 504, the second drive motor 702, and the third drive motor 903 are all electrically connected to the motion control system 15. The motion control system 15 can start and stop the first drive motor 504, the second drive motor 702, and the third drive motor 903.

[0032] 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. A vision-based mobile phone internal length and width detection device, comprising a frame (1), characterized in that: A housing (2) is fixedly installed on the top of the frame (1). An opening (3) is provided on one side of the housing (2). A vision inspection system (4) is installed inside the housing (2). Several variable angle line light sources (16) are provided at the bottom of the vision inspection system (4). Translation components (5) for moving the vision inspection system (4) in the X-axis direction are provided on the inner walls of both sides of the housing (2). A mounting plate (6) is connected to the moving end of the translation component (5). A lifting component (7) for moving the vision inspection system (4) in the Z-axis direction is provided on one side wall of the mounting plate (6). Two sets of loading stations (8) are provided on the top of the frame (1). Two sets of power components (9) for alternately loading the two sets of loading stations (8) are provided in the inner cavity of the frame (1).

2. The vision-based mobile phone internal length and width detection device according to claim 1, characterized in that: The translation component (5) includes a positioning frame (501). The two sides of the positioning frame (501) are fixedly connected to the inner walls of the two sides of the chassis (2). Two sets of rotating seats (502) are fixedly connected to one side wall of the positioning frame (501). A first ball screw (503) is rotatably connected to the opposite side of the two sets of rotating seats (502). One end of the first ball screw (503) passes through one set of rotating seats (502) and is connected to a first drive motor (504). A translation block (505) is threadedly connected to the outer wall of the first ball screw (503). One side of the translation block (505) is fixedly connected to one side of the mounting plate (6).

3. The vision-based mobile phone length and width detection device according to claim 2, characterized in that: Two sets of limiting slide rods (10) are symmetrically fixedly connected to one side wall of the positioning frame (501), and two sets of limiting sliders (11) are fixedly connected to one side wall of the mounting plate (6), and the two sets of limiting sliders (11) are slidably connected to the two sets of limiting slide rods (10) respectively.

4. The vision-based mobile phone length and width detection device according to claim 3, characterized in that: The first drive motor (504) is fixedly installed on one side wall of one of the rotating seats (502), and one end of the output shaft of the first drive motor (504) is fixedly connected to one end of the first ball screw (503).

5. The vision-based mobile phone length and width detection device according to claim 1, characterized in that: The lifting assembly (7) includes two sets of fixing plates (701), both sets of fixing plates (701) are fixedly connected to one side wall of the mounting plate (6), one set of fixing plates (701) is fixedly connected to one side wall of a second drive motor (702), and a second ball screw (703) is rotatably installed on the opposite side wall of the two sets of fixing plates (701). One end of the second ball screw (703) passes through one set of fixing plates (701) and is fixedly connected to the output shaft of the second drive motor (702). A lifting block (704) is threadedly connected to the outer wall of the second ball screw (703), and the vision inspection system (4) is fixedly connected to one side wall of the lifting block (704).

6. The vision-based mobile phone length and width detection device according to claim 5, characterized in that: Two sets of vertical guide rails (12) are fixedly connected to one side wall of the mounting plate (6). Guide sliders (13) are slidably connected to one side of each of the two sets of vertical guide rails (12). One side of each of the two sets of guide sliders (13) is fixedly connected to one side of the vision inspection system (4).

7. The vision-based mobile phone internal length and width detection device according to claim 1, characterized in that: The power assembly (9) includes a support (901), which is fixedly installed on the inner wall of the housing (2). A third ball screw (902) is rotatably installed on the top of the support (901). A third drive motor (903) is connected to one end of the third ball screw (902). A movable block (904) is threadedly connected to the outer wall of the third ball screw (902). The top of the movable block (904) is fixedly connected to the bottom of the loading station (8).

8. The vision-based mobile phone length and width detection device according to claim 1, characterized in that: A computer monitor (14) is fixedly connected to one side wall of the chassis (2), and a motion control system (15) is fixedly connected to one side of the upper surface of the frame (1). The computer monitor (14), the variable angle line light source (16), and the vision detection system (4) are all electrically connected to the motion control system (15) through wires.

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