Automobile seat visual defect detection device

Abstract

This utility model relates to the field of automotive seat processing technology, specifically to an automotive seat visual defect detection device. It includes a base, a servo motor that outputs controllable torque to drive the entire moving assembly to perform detection movements, and a camera that collects image data of the automotive seat surface for subsequent defect analysis. This automotive seat visual defect detection device smoothly transports the automotive seat to the detection area below the protective cover via a conveyor belt. The servo motor drives a gear and a gear ring to precisely mesh, causing the camera to reciprocate in a circular motion along a guide ring. This innovative motion method overcomes the blind spot problem inherent in traditional straight-line detection. The combined design of the connecting frame and damper effectively suppresses the impact of mechanical vibration on image quality. The annular protective cover, combined with the lower slot structure, protects the internal components while ensuring an open detection field of view. Compared to fixed-point detection schemes, this design improves detection coverage.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat processing technology, and in particular to an automotive seat visual defect detection device. Background Technology

[0002] In the modern automobile manufacturing system, seat production is a complex process involving multiple precision steps. It starts with the stamping and forming of a metal frame, followed by the injection molding of foamed materials to form the basic outline. Then, leather or fabric is wrapped and shaped through cutting and sewing. Finally, accessories such as headrests and armrests are assembled and electric adjustment modules are installed. The entire production process requires the cooperation of dozens of workstations. Each step may result in defects such as scratches, wrinkles, and stains on the surface due to fluctuations in equipment parameters or material defects.

[0003] Since car seats are directly related to driving and riding comfort and interior aesthetics, finished products must undergo strict surface quality inspection. The inspection items include fabric integrity inspection, stitch uniformity assessment, leather surface defect identification, and functional component assembly verification. Traditional inspection methods rely on visual inspection by quality inspectors combined with manual touch inspection. This manual inspection mode has two fatal flaws: on the one hand, human vision has physiological limits and it is difficult to detect tiny defects smaller than 0.5mm; on the other hand, continuous operation will lead to visual fatigue, causing the missed inspection rate to increase significantly over time.

[0004] Currently, mainstream factories still use manual moving light sources for multi-angle observation in their inspection methods. Quality inspectors need to constantly adjust their observation positions around the seat. Hidden areas such as the seam between the seat back and cushion, and the headrest connectors often need to be repeatedly inspected. This inspection method takes 3-5 minutes per piece, and the inspection results cannot be digitally archived. Utility Model Content

[0005] The purpose of this invention is to provide a visual defect detection device for automobile seats, which solves the problem of low efficiency in traditional automobile seat defect detection.

[0006] To achieve the above objectives, this utility model provides a visual defect detection device for automotive seats, including a base. A conveyor belt is fixedly mounted on the upper end of the base, and a protective cover is fixedly mounted on the upper side of the conveyor belt. A hanging rod for fixing is fixedly mounted on the upper end of the protective cover, and a toothed ring is fixedly mounted on the lower end of the protective cover. The toothed ring is fixed inside the protective cover by a first fixing rod. A vertically placed servo motor is movably mounted on the outer side of the toothed ring, and a camera is movably mounted on the lower side of the protective cover. The servo motor drives a moving component to allow the camera to perform a circular inspection of the automotive seats on the conveyor belt. The base serves as the base for the entire system. The load-bearing platform provides stable support to ensure the stability of the equipment during operation. The conveyor belt carries and transports the car seat to be inspected at a constant speed through the inspection area. The protective cover forms a closed inspection space to avoid interference from external light and protect the internal precision components. The hanger rod fixes the protective cover from the top to prevent displacement due to mechanical movement. The gear ring, as a ring transmission track, provides a precise meshing path for the gears. The first fixing rod firmly connects the gear ring to the inner wall of the protective cover to prevent deviation during transmission. The servo motor outputs controllable torque to drive the entire moving component to perform the inspection movement. The camera collects image data of the car seat surface for subsequent defect analysis.

[0007] The moving component includes a gear, and the output shaft of the servo motor is provided with a gear. The gear meshes with a gear ring, and the gear converts the rotational motion of the servo motor into circumferential motion meshing with the gear ring.

[0008] The protective cover has a guide ring fixed inside. The guide ring is fixed inside the protective cover by a second fixing rod. The guide ring limits the movement trajectory of the moving component to ensure the accuracy of the detection path. The second fixing rod fixes the guide ring in a predetermined position to maintain the movement trajectory without deformation.

[0009] The guide ring is fitted with a collar, which is connected to the bottom of the servo motor via a connecting frame. The collar slides along the guide ring, driving the entire moving assembly to move smoothly. The connecting frame connects the servo motor and the collar to form a linkage mechanism.

[0010] The connecting frame has a connecting piece fixedly installed at the end away from the collar. A damper is fixedly installed between the connecting piece and the connecting frame. A connecting rod is fixedly installed at the lower end of the connecting piece. The connecting piece acts as a transition component to coordinate the relative movement between different components. The damper absorbs mechanical vibration to ensure the clarity of the camera image. The connecting rod finally fixes the position of the camera and adjusts its shooting angle.

[0011] The protective cover is ring-shaped and has a slot at its lower end.

[0012] This automotive seat visual defect detection equipment smoothly transports the car seat to the detection area below the protective cover via a conveyor belt. A servo motor drives a gear and a gear ring to precisely mesh, causing the camera to reciprocate in a circular motion along the guide ring. This innovative motion method overcomes the blind spot problem of traditional straight-line detection. The combination design of the connecting frame and damper effectively suppresses the impact of mechanical vibration on image quality. The ring-shaped protective cover, combined with the slot structure at the lower end, protects the internal components while ensuring an open field of view. Compared with fixed-point detection solutions, this design can improve the detection coverage. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the overall structure of the automotive seat visual defect detection device according to an embodiment of the present invention.

[0015] Figure 2 This is a schematic diagram of the protective cover structure according to an embodiment of the present utility model.

[0016] Figure 3 This is a schematic diagram of the structure of the mobile component according to an embodiment of the present invention.

[0017] Figure 4 This is a schematic cross-sectional view of the protective cover according to an embodiment of the present invention.

[0018] 1. Base, 2. Conveyor belt, 3. Protective cover, 4. Hanging rod, 5. Gear ring, 6. First fixing rod, 7. Servo motor, 8. Gear, 9. Guide ring, 10. Second fixing rod, 11. Collar, 12. Connecting frame, 13. Connecting piece, 14. Damper, 15. Connecting rod, 16. Camera. Detailed Implementation

[0019] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0020] Please see Figures 1-4A visual defect detection device for car seats includes a base 1. A conveyor belt 2 is fixedly mounted on the upper end of the base 1. A protective cover 3 is fixedly mounted on the upper side of the conveyor belt 2. A hanging rod 4 for fixing is fixedly mounted on the upper end of the protective cover 3. A toothed ring 5 is fixedly mounted on the lower end of the protective cover 3. The toothed ring 5 is fixed inside the protective cover 3 by a first fixing rod 6. A vertically placed servo motor 7 is movably mounted on the outer side of the toothed ring 5. A camera 16 is movably mounted on the lower side of the protective cover 3. The servo motor 7 drives a moving component to allow the camera 16 to perform a circular inspection of the car seats on the conveyor belt 2. The base 1 serves as the basic support component of the device, bearing the overall load. The structure's weight and operational stability are maintained. The conveyor belt 2, driven by a motor, operates continuously and is responsible for smoothly transporting the car seat to be inspected to the inspection station. The protective cover 3 forms a sealed inspection space, which can block external light interference and protect the internal precision components. The hanging rod 4 fixes the protective cover 3 from the top to prevent its displacement. The gear ring 5, as a ring transmission track, meshes precisely with the gear 8 to achieve power transmission. The first fixing rod 6 firmly fixes the gear ring 5 to the inner wall of the protective cover 3 to ensure transmission accuracy. The servo motor 7 outputs adjustable speed rotational power to drive the entire moving component. The camera 16 uses a high-resolution industrial lens to capture image data of the seat surface.

[0021] Please see Figures 3-4 The moving component includes a gear 8. The output shaft of the servo motor 7 is equipped with a gear 8, which meshes with the gear ring 5. A guide ring 9 is fixedly installed inside the protective cover 3. The guide ring 9 is fixed inside the protective cover 3 by a second fixing rod 10. The gear 8 is installed on the output shaft of the servo motor 7 and meshes with the gear ring 5 to convert the rotational motion into circumferential movement. The guide ring 9 serves as a motion trajectory reference to ensure that the moving component runs along a preset path. The second fixing rod 10 precisely positions the guide ring 9 inside the protective cover 3.

[0022] Please see Figures 2-4 A collar 11 is fitted on the guide ring 9. The collar 11 is connected to the bottom of the servo motor 7 through the connecting frame 12. A connecting piece 13 is fixedly installed at the end of the connecting frame 12 away from the collar 11. A damper 14 is fixedly installed between the connecting piece 13 and the connecting frame 12. A connecting rod 15 is fixedly installed at the lower end of the connecting piece 13. The protective cover 3 is annular and has a slot at the lower end. The collar 11 slides along the guide ring 9 to drive the connecting frame 12 to move synchronously. The connecting frame 12 acts as a rigid connecting member to connect the servo motor 7 and the collar 11 into a whole. The connecting piece 13 acts as a transition member to coordinate the relative displacement between different components. The damper 14 absorbs mechanical vibration through hydraulic buffering to ensure image clarity. The connecting rod 15 acts as the final execution component to fix and adjust the shooting angle of the camera 16. The slot at the lower end of the protective cover 3 provides an unobstructed detection field of view for the camera 16.

[0023] Working principle: During operation, the conveyor belt 2 transports the car seat to the detection position under the protective cover 3. The servo motor 7 drives the gear 8 to rotate. The gear 8 meshes with the gear ring 5 to generate a reverse force, which drives the servo motor 7 to make a back-and-forth circular motion along the guide ring 9. Because the second fixed rod 10 on the guide ring 9 restricts the complete circumferential motion of the collar 11, the collar 11 can only make a reciprocating circular motion between the left and right ends of the second fixed rod 10. Through this precise mechanical linkage, the camera 16 can perform all-round visual defect detection on the upper surface of the car seat without blind spots. During the detection process, the image data collected by the camera 16 is transmitted to the quality inspector's computer in real time for analysis and processing. The entire detection process is highly automated and the detection accuracy is stable and reliable.

[0024] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A visual defect detection device for automobile seats, comprising a base (1), characterized in that, A conveyor belt (2) is fixedly installed on the upper end of the base (1). A protective cover (3) is fixedly installed on the upper side of the conveyor belt (2). A hanging rod (4) for fixing is fixedly installed on the upper end of the protective cover (3). A toothed ring (5) is fixedly installed on the lower end of the protective cover (3). The toothed ring (5) is fixed inside the protective cover (3) by a first fixing rod (6). A vertically placed servo motor (7) is movably installed on the outer side of the toothed ring (5). A camera (16) is movably installed on the lower side of the protective cover (3). The servo motor (7) drives the moving component to allow the camera (16) to perform a circular detection on the car seat on the conveyor belt (2).

2. The automotive seat visual defect detection device as described in claim 1, characterized in that, The moving component includes a gear (8), and the output shaft end of the servo motor (7) is provided with a gear (8), which meshes with a gear ring (5).

3. The automotive seat visual defect detection device as described in claim 1, characterized in that, A guide ring (9) is fixedly installed inside the protective cover (3), and the guide ring (9) is fixed inside the protective cover (3) by a second fixing rod (10).

4. The automotive seat visual defect detection device as described in claim 3, characterized in that, A collar (11) is fitted on the guide ring (9), and the collar (11) is connected to the bottom of the servo motor (7) through a connecting frame (12).

5. The automotive seat visual defect detection device as described in claim 4, characterized in that, A connecting piece (13) is fixedly provided at one end of the connecting frame (12) away from the collar (11), a damper (14) is fixedly provided between the connecting piece (13) and the connecting frame (12), and a connecting rod (15) is fixedly provided at the lower end of the connecting piece (13).

6. The automotive seat visual defect detection device as described in claim 1, characterized in that, The protective cover (3) is annular and has a slot at the lower end.

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