A detection system for multimedia main body assembly

Abstract

The present invention discloses a multimedia main body assembly detection system, which belongs to the field of automotive electronic equipment detection technology. The system comprises a detection platform and two pre-assembly seats for placing the multimedia main body box and the center console front cover, respectively. The top of the detection platform is connected to a gear assembly for controlling the intermittent rotation of the two pre-assembly seats via a drive motor. The present invention, through the provision of a transfer guide plate and a circuit simulation assembly, can utilize the transfer guide plate, the transition simulation guide plate, and the electrically controlled telescopic guide column to simulate the connection circuits of each main board, thereby resolving the problem of difficulty in making circuit connections when the multimedia main body box and the center console front cover are not assembled. The system facilitates the detection of circuit faults before assembly, simplifies the subsequent rework and troubleshooting process, and makes the combined process of multimedia main body assembly and detection more efficient. At the same time, the hydraulic telescopic column is used to press and impact the center console front cover, simulating the state of the brakes applied to the center console front cover during vehicle driving.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile electronic equipment detection, and in particular to a detection system for multimedia main body assembly. Background Art

[0002] The car multimedia system refers to the various electronic devices and functions integrated inside the vehicle, mainly including the audio system, navigation system, communication system, infotainment system, etc. It is mainly concentrated in the multimedia main box located in the center console of the car, and ensures smooth communication and power supply between all electronic components through signal lines, speaker lines and power lines.

[0003] During the assembly and production of the current multimedia main box, the multimedia main control motherboard, the display motherboard and the button motherboard need to be connected separately. However, the current production process generally requires that the external reversing image, GPS and vehicle bus wiring be tested after the multimedia main box body and the central control front cover are assembled. If a wiring fault occurs between the motherboards in the multimedia main box, subsequent troubleshooting and rework will be more complicated, affecting the overall production efficiency. In addition, during daily driving, the car often encounters bumps, or during the braking process, touching the screen and pressing the central control button will cause impact on the entire multimedia main box. It is necessary to ensure the reliability of the internal circuit of the multimedia main box after assembly, so a multimedia main box assembly detection system is proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that the current production process in the prior art generally involves assembling the multimedia main box body and the central control front cover before performing wiring detection of the external reversing image, GPS and vehicle bus. If a wiring fault occurs between the main boards in the multimedia main box, it will make subsequent troubleshooting and rework more complicated, affecting the overall production efficiency. A detection system for multimedia main box assembly is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A multimedia main body assembly detection system includes a detection platform and two pre-assembly seats for placing the multimedia main body box and the center console front cover respectively. The top of the detection platform is connected to a gear assembly for controlling the intermittent rotation of the two pre-assembly seats via a drive motor. The top of the pre-assembly seat located on one side of the multimedia main body box is fixedly connected to a plurality of limit seats, the inner sidewall of the limit seat is connected to the limit assembly. The top of the pre-assembly seat located on the side of the center console front cover is fixedly connected to a plurality of rubber holders. A circuit simulation assembly for simulating the circuit connection between the multimedia main body box and the center console front cover is provided below the two pre-assembly seats.

[0007] A retaining top seat is provided above the two pre-assembly seats, and the retaining top seat is connected to a simulated external seat at the bottom end of one side of the multimedia main box through a hydraulic push rod. The retaining top seat is fixedly connected to two electric control rails at the top end of one side of the central control front cover, and the inner wall of the electric control guide rail is connected to a magnetic simulation coil through a T-shaped slider. A hydraulic telescopic column is provided below the magnetic simulation coil for simulating the pressure state of the central control front cover during use.

[0008] Preferably, two conveyor belts for transporting the multimedia main box and the central control front cover are respectively provided on both sides of the detection platform. The top of the detection platform is fixedly connected to the drive motor, the top of the pre-assembly seat is fixedly connected to the deflection measuring seat, and each side wall of the deflection measuring seat is fixedly connected to a corresponding photoelectric sensor.

[0009] Preferably, the gear assembly consists of a main gear and two auxiliary gear rings, the main gear is respectively engaged with the auxiliary gear rings on both sides, the drive motor is fixedly connected to the bottom end of the main gear through the drive shaft, the auxiliary gear ring is fixedly connected to the bottom end of the pre-assembly seat through the rotating shaft, and the rotating shaft is rotatably connected to the top of the detection platform.

[0010] Preferably, the limiting assembly consists of two C-shaped limiting plates and two spring rods. The two C-shaped limiting plates are fixedly connected by two spring rods. A limiting slot is provided at the top of the limiting seat. The inner side wall of the limiting slot is slidably connected to the side wall of the C-shaped limiting plate.

[0011] Preferably, a plurality of limit edge plates are fixedly connected to the front and rear side walls of the top of the limit seat, the inner side wall of the limit slide groove on the limit seat is fixedly connected to a limit plate, and the outward side walls of the limit seat and the rubber card seat are fixedly connected to a transfer guide plate.

[0012] Preferably, the circuit simulation component consists of a transition simulation guide plate and a plurality of electrically controlled telescopic guide columns. The top of the detection platform is fixedly connected to the transition platform through a plurality of support rods. The top of the transition platform is fixedly connected to the bottom of the transition simulation guide plate. The top of the transition simulation guide plate is fixedly connected to the bottom of the plurality of electrically controlled telescopic guide columns.

[0013] Preferably, the top of the transition platform is fixedly connected to the bottom of the fixed top seat through two fixing rods, and the bottom of the fixed top seat is fixedly connected to the simulated external seat through a hydraulic push rod. The simulated external seat is provided with plug connectors corresponding to the sockets of the multimedia main box.

[0014] Preferably, a travel hole is opened on the retaining top seat, and the two electric control guide rails are respectively arranged on both sides of the travel hole, and the inner side wall of the electric control guide rail is slidably connected to the placement seat through a T-shaped slider.

[0015] Preferably, the top end of the placement seat is fixedly connected to the magnetic simulation coil, the bottom end of the placement seat is fixedly connected to the hydraulic telescopic column through two connecting rods, and the side wall of one side of the retaining top seat is fixedly connected to two visual detection mechanisms.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This solution uses transfer guides and circuit simulation components to simulate the connection circuits of each main board using transfer guides, transition simulation guides, and electrically controlled telescopic guide posts. This solves the problem of difficult circuit connection when the multimedia main box and center console front cover are not assembled. It facilitates the detection of circuit faults before assembly, making subsequent rework and troubleshooting easier and making the combined process of multimedia main body assembly and testing more efficient.

[0018] 2. This solution uses magnetic simulation coils and hydraulic telescopic columns to simulate the complex electromagnetic interference to the multimedia body in the car, ensuring that the multimedia body's anti-electromagnetic interference performance meets the standards when powered on. At the same time, the hydraulic telescopic column is used to press and impact the center console front cover to simulate the state of the brakes exerted on the center console front cover during driving, ensuring the reliability of the internal circuit in this state. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of a multimedia main body assembly detection system proposed by the present invention;

[0020] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 This is an assembly diagram of a multimedia main body assembly detection system proposed by the present invention;

[0022] Figure 4 This is a structural schematic diagram of the positions of the various limit seats in a multimedia main body assembly detection system proposed by the present invention;

[0023] Figure 5 This is a structural diagram of a multimedia main body box and a central control front cover in a multimedia main body assembly detection system proposed by the present invention;

[0024] Figure 6 This is a structural diagram of a limit assembly in a multimedia main body assembly detection system proposed by the present invention;

[0025] Figure 7 This is a structural diagram of the connection between the electric control guide rail and the T-shaped slider in the multimedia main body assembly detection system proposed by the present invention;

[0026] Figure 8This is a structural schematic diagram of the connection between a transfer guide plate and an electrically controlled telescopic guide column in a multimedia main body assembly detection system proposed by the present invention.

[0027] In the figure: 1. Detection platform; 2. Pre-assembly seat; 3. Multimedia main box; 4. Central control front cover; 5. Conveyor belt; 6. Drive motor; 7. Main gear; 8. Auxiliary gear ring; 9. Deflection measuring seat; 10. Limit seat; 11. Limit edge plate; 12. Limit plate; 13. C-type limit plate; 14. Spring rod; 15. Transfer guide plate; 16. Rubber seat; 17. Transition platform; 18. Transition simulation guide plate; 19. Electric telescopic guide column; 20. Retaining top seat; 21. Hydraulic push rod; 22. Simulation external seat; 23. Electric guide rail; 24. T-type slider; 25. Placement seat; 26. Magnetic simulation coil; 27. Hydraulic telescopic column; 28. Visual inspection mechanism. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention in specific circumstances.

[0031] Example, see Figures 1 to 8A multimedia main body assembly detection system includes a detection platform 1 and two pre-assembly seats 2 for placing the multimedia main body box 3 and the center console front cover 4 respectively. The top of the detection platform 1 is connected to a gear assembly for controlling the intermittent rotation of the two pre-assembly seats 2 through a drive motor 6. The top of the pre-assembly seat 2 located on one side of the multimedia main body box 3 is fixedly connected to a plurality of limit seats 10. The inner side wall of the limit seat 10 is connected to the limit assembly. The top of the pre-assembly seat 2 located on the side of the center console front cover 4 is fixedly connected to a plurality of rubber seats 16. A circuit simulation assembly for simulating the circuit connection between the multimedia main body box 4 and the center console front cover 4 is provided below the two pre-assembly seats 2;

[0032] Furthermore, two conveyor belts 5 for conveying the multimedia main box 3 and the central control front cover 4 are respectively provided on both sides of the detection platform 1. The top of the detection platform 1 is fixedly connected to the driving motor 6, and the top of the pre-assembly seat 2 is fixedly connected to the deflection measuring seat 9. Each side wall of the deflection measuring seat 9 is fixedly connected to a corresponding photoelectric sensor. The gear assembly consists of a main gear 7 and two auxiliary gear rings 8. The main gear 7 is respectively engaged with the auxiliary gear rings 8 on both sides. The driving motor 6 is fixedly connected to the bottom end of the main gear 7 through the driving shaft, and the auxiliary gear ring 8 is fixedly connected to the bottom end of the pre-assembly seat 2 through the rotating shaft. The rotating shaft is rotatably connected to the top of the detection platform 1. The limit assembly consists of two C-shaped limit plates 13 and two spring rods 14. The two C-shaped limit plates 13 are connected through two spring rods 14 is fixedly connected, a limiting slot is provided at the top of the limit seat 10, and the inner side wall of the limiting slot is slidably connected to the side wall of the C-shaped limiting plate 13. A plurality of limiting plates 11 are fixedly connected to the front and rear side walls of the top of the limit seat 10, and the inner side wall of the limiting slot on the limit seat 10 is fixedly connected to the limiting plate 12. The outward side walls of the limit seat 10 and the rubber card seat 16 are fixedly connected to the transfer guide plate 15. The circuit simulation component consists of a transition simulation guide plate 18 and a plurality of electrically controlled telescopic guide columns 19. The top of the detection platform 1 is fixedly connected to the transition platform 17 through a plurality of support rods. The top of the transition platform 17 is fixedly connected to the bottom end of the transition simulation guide plate 18, and the top of the transition simulation guide plate 18 is fixedly connected to the bottom end of the plurality of electrically controlled telescopic guide columns 19.

[0033] It should be noted that: the multimedia main box 3 and the central control front cover 4 to be tested are placed on the conveyor belts 5 on both sides for transportation, and the operator on one side places the multimedia main box 3 on the limit seat 10. During the placement process, the C-shaped limit plate 13 on one side is clamped on the limit plate 12, and then the C-shaped limit plate 13 on the other side is pulled by the spring rod 14 to open the two C-shaped limit plates 13. Then, the multimedia main box 3 to be assembled is placed inward between the two C-shaped limit plates 13, and then the front and rear limit plates 11 are used to move along the plate 11. The operator on the other side places the central control front cover 4 with the assembly surface facing inward in the rubber card seat 16. During the installation and placement of the multimedia main box 3 and the central control front cover 4, the strip wiring belts of their internal main boards are respectively plugged into the transfer guide 15. After the multimedia main box 3 and the central control front cover 4 are placed, the reflected photoelectric sensor on the deflection measuring seat 9 will calibrate the reference position of the component to be measured to ensure that when the multimedia main box 3 and the central control front cover 4 are rotated relative to each other, the pre-assembly angle can be detected to see if they are consistent.

[0034] Then, the driving motor 6 is started to drive the main gear 7 to rotate intermittently through the driving shaft. The rotation of the main gear 7 will drive the meshing auxiliary gear rings 8 on both sides to rotate intermittently. The rotation of the auxiliary gear rings 8 will drive the pre-assembly seat 2 to rotate intermittently through the rotating shaft. When the multimedia main box 3 and the central control front cover 4 rotate to a relative state, they will stop rotating. Then, the multiple electric control telescopic guide columns 19 on the transition simulation guide plate 18 are started, so that the electric control telescopic guide columns 19 are pressed against the transfer guide plates 15 on the limit seat 10 and the rubber card seat 16 respectively, so that the main board between the multimedia main box 3 and the central control front cover 4 is connected through the simulated transition circuit composed of the transfer guide plate 15, the transition simulation guide plate 18 and the electric control telescopic guide columns 19 (the multimedia main box 3 and the central control front cover 4 are connected). The mainboard circuit inside has been plugged into the transfer guide plate 15 during the above installation process), and then simulates the circuit connection state of the multimedia main box 3 and the central control front cover 4 after assembly, and then starts the hydraulic push rod 21 to simulate the plugging of the simulated external seat 22 with the external socket of the multimedia main box 3 (the hydraulic push rod 21 pushes the simulated external seat 22 to move, and inserts multiple plug connectors on the simulated external seat 22 that are adapted to the external sockets of the multimedia main box 3 one by one), and tests whether the signal transmission is normal in the power-on state (the simulated external seat 22 is used for external test power supply and signal connection transmission of each socket. This is an existing technical means and will not be described in detail), and determines whether each component is operating normally after the circuit connection is detected before assembly;

[0035] The above advantages are as follows: the transfer guide plate 15, the transition simulation guide plate 18, and the electrically controlled telescopic guide column 19 can be used to simulate the connection circuits of each main board, thereby resolving the problem of difficulty in connecting the circuits when the multimedia main box 3 and the center console front cover 4 are not assembled. This facilitates detection of circuit faults before assembly, simplifies subsequent rework and troubleshooting, and makes the combined process of multimedia main body assembly and testing more efficient.

[0036] A retaining top seat 20 is provided above the two pre-assembly seats 2. The retaining top seat 20 is connected to a simulated external seat 22 at the bottom end of one side of the multimedia main box 3 via a hydraulic push rod 21. The retaining top seat 20 is fixedly connected to two electric control rails 23 at the top end of one side of the central control front cover 4. The inner side wall of the electric control rail 23 is connected to a magnetic simulation coil 26 via a T-shaped slider 24. A hydraulic telescopic column 27 is provided below the magnetic simulation coil 26 for simulating the pressure state of the central control front cover 3 during use.

[0037] Furthermore, the top of the transition platform 17 is fixedly connected to the bottom end of the fixed top seat 20 through two fixing rods, and the bottom end of the fixed top seat 20 is fixedly connected to the simulation external seat 22 through a hydraulic push rod 21. The simulation external seat 22 is provided with plug connectors that correspond one to one with the sockets of the multimedia main box 3 (and adapt to each other). A travel hole is opened on the fixed top seat 20, and two electric control rails 23 are respectively provided on both sides of the travel hole. The inner side wall of the electric control guide rail 23 is slidably connected to the placement seat 25 through a T-shaped slider 24. The top of the placement seat 25 is fixedly connected to the magnetic simulation coil 26, and the bottom end of the placement seat 25 is fixedly connected to the hydraulic telescopic column 27 through two connecting rods. Two visual detection mechanisms 28 are fixedly connected to the side wall of one side of the fixed top seat 20;

[0038] It should be noted that: when the analog circuit realizes the circuit connection between the main boards of the multimedia main box 3 and the central control front cover 4, the two electric control rails 23 are started to synchronously drive the two T-shaped sliders 24 to slide, and at the same time, the magnetic simulation coil 26 is energized to simulate the electromagnetic interference caused by the use of other electronic devices when the multimedia main body in the car is in use. By adjusting the sliding distance of the T-shaped slider 24 and the current connected to the magnetic simulation coil 26, the state of complex electromagnetic interference to the multimedia main body in the car is simulated. Subsequently, the T-shaped slider 24 slides quickly in the electric control rail 23 to realize the pressing of the central control front cover 4 by the lower hydraulic telescopic column 27. Pressure and impact, simulating the pressure and impact on the central control front cover 4 caused by using the car's central control screen and buttons when the car brakes suddenly. After a series of tests are completed, the pre-assembly seat 2 is rotated to rotate the assembly surface of the multimedia main box 3 and the central control front cover 4 to the side of the visual inspection mechanism 28. The visual inspection mechanism 28 is used to re-inspect the status of the main boards in the multimedia main box 3 and the central control front cover 4 to ensure that each main board is in good condition after a series of tests (the status of the main board after testing is compared with the standard status by shooting to ensure that the product can directly enter the assembly process after testing. Visual inspection is an existing technology and will not be described in detail).

[0039] The above benefits are as follows: the magnetic simulation coil 26 can be used to simulate the complex electromagnetic interference to the multimedia body in the car, ensuring that the anti-electromagnetic interference performance of the multimedia body meets the standard when powered on. At the same time, the hydraulic telescopic column 27 is used to press and impact the center console front cover 4 to simulate the state of the brakes applied to the center console front cover 4 during driving, ensuring the reliability of the internal circuit in this state.

[0040] When the present invention is in use, the multimedia main box 3 and the central control front cover 4 to be tested are placed on the conveyor belts 5 on both sides for transportation. The operator on one side places the multimedia main box 3 on the limit seat 10. During the placement process, the C-shaped limit plate 13 on one side is clamped on the clamping plate 12, and then the C-shaped limit plate 13 on the other side is pulled by the spring rod 14 to open the two C-shaped limit plates 13. Subsequently, the multimedia main box 3 to be assembled is placed inward between the two C-shaped limit plates 13, and then the front and rear limit plates 11 are used to limit the inside and outside. The operator on the other side places the central control front cover 4 with the assembly surface facing inward. Placed in the rubber card seat 16, during the installation and placement of the multimedia main box 3 and the central control front cover 4, the strip wiring belts of their respective internal motherboards are respectively plugged into the transfer guide 15. After the multimedia main box 3 and the central control front cover 4 are placed, the through-beam photoelectric sensor on the deflection measuring seat 9 will calibrate the reference position of the component to be measured (if the placement deviates from the pre-installed reference position, the light beam of the through-beam photoelectric sensor will directly pass through the offset position of the mounting component to provide feedback of the offset signal), ensuring that when the multimedia main box 3 and the central control front cover 4 are subsequently rotated to a relative state, they can detect whether the pre-assembly angles are consistent;

[0041] Then, the driving motor 6 is started to drive the main gear 7 to rotate intermittently through the driving shaft. The rotation of the main gear 7 will drive the meshing auxiliary gear rings 8 on both sides to rotate intermittently. The rotation of the auxiliary gear rings 8 will drive the pre-assembly seat 2 to rotate intermittently through the rotating shaft. When the multimedia main box 3 and the central control front cover 4 rotate to a relative state, they will stop rotating. Then, the multiple electrically controlled telescopic guide columns 19 on the transition simulation guide plate 18 are started, so that the electrically controlled telescopic guide columns 19 are pressed against the transfer guide plates 15 on the limit seat 10 and the rubber card seat 16 respectively, so that the main board between the multimedia main box 3 and the central control front cover 4 is connected through the simulated transition circuit composed of the transfer guide plate 15, the transition simulation guide plate 18 and the electrically controlled telescopic guide columns 19 (the main board circuits in the multimedia main box 3 and the central control front cover 4 have been plugged into the transfer guide plate 15 during the above installation process), thereby simulating the circuit connection state of the multimedia main box 3 and the central control front cover 4 after assembly, and then start again. The hydraulic push rod 21 is moved to simulate the external socket 22 and the external socket of the multimedia main box 3 (the hydraulic push rod 21 pushes the simulated external socket 22 to move, and inserts multiple plug connectors on the simulated external socket 22 that are adapted to the external sockets of the multimedia main box 3 one by one), and tests whether the signal transmission is normal in the power-on state (the simulated external socket 22 is used for external test power supply and signal connection transmission of each socket. This is an existing technical means and is not described in detail). It is judged whether the components are operating normally after the circuit connection is detected before assembly. In this way, the adapter guide plate 15, the transition simulation guide plate 18 and the electrically controlled telescopic guide column 19 can be used to simulate the connection circuits of each main board, so as to solve the problem that it is difficult to connect the lines when the multimedia main box 3 and the central control front cover 4 are not assembled, and it is convenient to detect circuit faults before assembly, so that the subsequent rework and troubleshooting process is simpler, and the combined process of multimedia main body assembly and testing is more efficient.

[0042] When the analog circuit realizes the circuit connection between the main boards of the multimedia main box 3 and the central control front cover 4, the two electric control rails 23 are started to synchronously drive the two T-shaped sliders 24 to slide. At the same time, the magnetic simulation coil 26 is energized to simulate the electromagnetic interference caused by the use of other electronic devices when the multimedia main body in the car is in use. By adjusting the sliding distance of the T-shaped slider 24 and the current connected to the magnetic simulation coil 26, the state of complex electromagnetic interference to the multimedia main body in the car is simulated. Subsequently, the T-shaped slider 24 slides quickly in the electric control rail 23 to realize the pressing and impact of the hydraulic telescopic column 27 on the central control front cover 4, simulating the sudden braking of the car and the use of the car's central control screen and buttons. After a series of tests are completed, the pre-assembly seat 2 is rotated to rotate the assembly surface of the multimedia main box 3 and the center control front cover 4 to the side of the visual inspection mechanism 28, and the visual inspection mechanism 28 is used to re-inspect the status of the main boards in the multimedia main box 3 and the center control front cover 4 to ensure that each main board is in good condition after a series of tests. In this way, the magnetic simulation coil 26 can be used to simulate the complex electromagnetic interference to the multimedia main body in the car, ensuring that the anti-electromagnetic interference performance of the multimedia main body meets the standard when powered on. At the same time, the hydraulic telescopic column 27 is used to press and impact the center control front cover 4 to simulate the state of the brake applied to the center control front cover 4 during driving of the car, ensuring the reliability of the internal circuit in this state.

[0043] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A multimedia main body assembly detection system, comprising a detection platform (1) and two pre-assembly seats (2) for placing a multimedia main body box (3) and a center console front cover (4), characterized in that: The top of the detection platform (1) is connected to a gear assembly for controlling the intermittent rotation of the two pre-assembly seats (2) through a driving motor (6); the top of the pre-assembly seat (2) located on one side of the multimedia main box (3) is fixedly connected to a plurality of limit seats (10); the inner side wall of the limit seat (10) is connected to the limit assembly; the top of the pre-assembly seat (2) located on one side of the central control front cover (4) is fixedly connected to a plurality of rubber holders (16); and a circuit simulation assembly for simulating the circuit connection between the multimedia main box (3) and the central control front cover (4) is provided below the two pre-assembly seats (2); A retaining top seat (20) is provided above the two pre-assembly seats (2), and the retaining top seat (20) is connected to a simulated external seat (22) at the bottom end of one side of the multimedia main box (3) through a hydraulic push rod (21), and the retaining top seat (20) is fixedly connected to two electric control rails (23) at the top end of one side of the central control front cover (4), and the inner side wall of the electric control rail (23) is connected to a magnetic simulation coil (26) through a T-shaped slider (24), and a hydraulic telescopic column (27) for simulating the pressure state of the central control front cover (4) during use is provided below the magnetic simulation coil (26); The circuit simulation component consists of a transition simulation guide plate (18) and a plurality of electrically controlled telescopic guide columns (19); the top of the detection platform (1) is fixedly connected to the transition platform (17) via a plurality of support rods; the top of the transition platform (17) is fixedly connected to the bottom of the transition simulation guide plate (18); the top of the transition simulation guide plate (18) is fixedly connected to the bottom of the plurality of electrically controlled telescopic guide columns (19); the top of the transition platform (17) is fixedly connected to the bottom of the fixed top seat (20) via two fixing rods; the bottom of the fixed top seat (20) is fixedly connected to the simulation external seat (22) via a hydraulic push rod (21); and the simulation external seat (22) is provided with plug connectors corresponding to the sockets of the multimedia main box (3).

2. A multimedia main body assembly detection system according to claim 1, characterized in that: Two conveyor belts (5) for conveying the multimedia main box (3) and the central control front cover (4) are respectively provided on both sides of the detection platform (1). The top of the detection platform (1) is fixedly connected to the driving motor (6). The top of the pre-assembly seat (2) is fixedly connected to the deflection measuring seat (9). The side walls of the deflection measuring seat (9) are fixedly connected to the corresponding photoelectric sensors.

3. A multimedia main body assembly detection system according to claim 1, characterized in that: The gear assembly consists of a main gear (7) and two auxiliary gear rings (8), the main gear (7) meshes with the auxiliary gear rings (8) on both sides respectively, the drive motor (6) is fixedly connected to the bottom end of the main gear (7) via a drive shaft, the auxiliary gear rings (8) are fixedly connected to the bottom end of the pre-assembly seat (2) via a rotating shaft, and the rotating shaft is rotatably connected to the top end of the detection platform (1).

4. A multimedia main body assembly detection system according to claim 1, characterized in that: The limiting assembly is composed of two C-shaped limiting plates (13) and two spring rods (14). The two C-shaped limiting plates (13) are fixedly connected via the two spring rods (14). A limiting slot is provided at the top of the limiting seat (10). The inner side wall of the limiting slot is slidably connected to the side wall of the C-shaped limiting plate (13).

5. A multimedia main body assembly detection system according to claim 4, characterized in that: A plurality of limiting plates (11) are fixedly connected to the front and rear side walls of the top of the limiting seat (10), the inner side wall of the limiting slide groove on the limiting seat (10) is fixedly connected to a limiting plate (12), and the outward side walls of the limiting seat (10) and the rubber clamping seat (16) are fixedly connected to a transfer guide plate (15).

6. A multimedia main body assembly detection system according to claim 1, characterized in that: A travel hole is provided on the retaining top seat (20), and the two electric control guide rails (23) are respectively arranged on both sides of the travel hole. The inner side wall of the electric control guide rail (23) is slidably connected to a placement seat (25) via a T-shaped slider (24).

7. A multimedia main body assembly detection system according to claim 6, characterized in that: The top end of the placement seat (25) is fixedly connected to the magnetic simulation coil (26), the bottom end of the placement seat (25) is fixedly connected to the hydraulic telescopic column (27) via two connecting rods, and the side wall of one side of the retaining top seat (20) is fixedly connected to two visual detection mechanisms (28).

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