Automobile stamping part quality detection device
By designing a quality inspection device for automotive stamping parts, a servo motor is used to drive a push plate to align and automatically measure the stamping parts, solving the problem of low efficiency in manual visual inspection and achieving highly efficient automated inspection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-11
- Publication Date
- 2026-04-14
AI Technical Summary
In existing technologies, the width of rectangular block-shaped automotive stamping parts is visually inspected manually, requiring manual operation of a measuring ruler for alignment, which results in low inspection efficiency.
An automotive stamping parts quality inspection device is adopted, which uses a servo motor to drive a push plate to align the stamping parts and performs automated inspection using a measuring ruler. It is combined with intermittent lighting to provide illumination, simplifying the operation process.
It improves detection efficiency, reduces manual operation time, and ensures the accuracy and automation of detection.
Smart Images

Figure CN224121860U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts quality inspection technology, and in particular to an automotive stamping parts quality inspection device. Background Technology
[0002] Automotive stamping parts are key components in automobile manufacturing, produced through a stamping process. This process uses a die to apply pressure to sheet metal, causing plastic deformation to achieve the desired shape and size. Automotive stamping parts are diverse, including body panels and structural components. They possess advantages such as light weight, high strength, and high precision, playing a crucial role in the appearance, performance, and safety of automobiles, and are indispensable basic components of the automotive industry.
[0003] Existing methods for dimensional quality inspection of rectangular block-shaped automotive stampings require measuring the width of the stampings. Current measurement methods often rely on manual visual inspection for preliminary checks. This process necessitates manually operating a measuring ruler to align with the stampings while maintaining parallelism between the stampings and the ruler. These operations are time-consuming and inefficient. To address these issues, we propose a quality inspection device for automotive stampings. Utility Model Content
[0004] The purpose of this invention is to solve the problem that in the existing technology, the width of stamped parts is measured manually by visual inspection. The measurement process requires manual operation of a measuring ruler to align the stamped parts with the measuring ruler, and the stamped parts must be kept parallel to the measuring ruler, which is time-consuming and inefficient. Therefore, this invention proposes a quality inspection device for automotive stamped parts.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A quality inspection device for automotive stamped parts includes a frame, on which a conveying mechanism for conveying the stamped parts to be tested is mounted. A controller is fixedly mounted on the frame to control the operation of the conveying mechanism. Two symmetrically distributed movable frames are provided at the upper end of the frame, each with a push plate fixedly mounted on it. The push plates on both sides are arranged opposite to each other. A guide rod is fixedly mounted on the frame, passing through the two movable frames and slidably mounted on the guide rod. A bidirectional lead screw is rotatably mounted on the frame, passing through the two movable frames and threadedly connected to them. A servo motor is fixedly mounted on the frame, with its output shaft fixedly connected to the bidirectional lead screw. A horizontally positioned measuring ruler is fixedly mounted on the frame.
[0007] Preferably, the servo motor is electrically connected to the controller, and the controller is used to control the operation of the servo motor.
[0008] Preferably, the conveying mechanism includes two rotatably mounted rollers on a frame, a conveyor belt is installed between the two rollers, a stepper motor is fixedly mounted on the frame, and the output shaft of the stepper motor is fixedly connected to one side of the roller.
[0009] Preferably, the stepper motor is electrically connected to a controller, which is used to control the operation of the stepper motor.
[0010] Preferably, an inclined guide plate is fixedly installed on the frame, and the upper end of the guide plate extends to one end of the conveyor belt.
[0011] Preferably, limit plates are provided on both sides of the upper end of the conveyor belt, the limit plates are strip-shaped, and the limit plates are fixedly installed on the frame.
[0012] Preferably, the upper end of the movable frame is fitted with a slidable rectangular sleeve, and a spring is provided inside the rectangular sleeve. The two ends of the spring are respectively fixedly connected to the rectangular sleeve and the movable frame.
[0013] Preferably, two spaced-apart lighting lamps are fixedly installed on the frame, a limit switch is provided at one end of the rectangular sleeve to control the operation of the lighting lamps, and a flexible pad is fixedly connected to the end of the rectangular sleeve.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] By moving the push plates on both sides towards the stamped part, the push plates work together to straighten the stamped part. After straightening, the stamped part is located below the measuring ruler. The operator can then visually inspect the stamped part using the measuring ruler, allowing them to select stamped parts with significant dimensional discrepancies. This inspection device eliminates the need for operators to use the measuring ruler to align the stamped part and can straighten tilted stamped parts, simplifying the operator's work, saving time, and thus improving inspection efficiency.
[0016] The rectangular sleeve moves synchronously with the movable frame. The flexible pad at one end of the rectangular sleeve presses against the limit switch, which is then pressed shut. The limit switch controls the circuit of the lighting lamp, which then illuminates the lamp. In low-light conditions, this provides illumination for visual inspection work. When the visual inspection is completed, the push plate leaves the stamping part, and the limit switch returns to the open state without being pressed. Thus, the lighting lamp illuminates intermittently, saving electricity. Attached Figure Description
[0017] Figure 1 This invention provides a schematic diagram of the operation of a quality inspection device for automotive stamped parts. Figure 1 ;
[0018] Figure 2 This invention provides a schematic diagram of the operation of a quality inspection device for automotive stamped parts. Figure 2 ;
[0019] Figure 3 This is a schematic diagram of the structure of a quality inspection device for automotive stamping parts proposed in this utility model;
[0020] Figure 4 This is an enlarged schematic diagram of a portion of the push plate structure in a quality inspection device for automotive stamped parts proposed in this utility model. Figure 1 ;
[0021] Figure 5 This is an enlarged schematic diagram of a portion of the push plate structure in a quality inspection device for automotive stamped parts proposed in this utility model. Figure 2 ;
[0022] Figure 6 This is an enlarged cross-sectional view of a portion of the rectangular sleeve in a quality inspection device for automotive stamping parts proposed in this utility model.
[0023] In the diagram: 1. Frame; 2. Controller; 3. Movable frame; 4. Push plate; 5. Guide rod; 6. Bidirectional lead screw; 7. Servo motor; 8. Measuring ruler; 9. Rotary roller; 10. Conveyor belt; 11. Stepper motor; 12. Guide plate; 13. Limit plate; 14. Rectangular sleeve; 15. Spring; 16. Lighting lamp; 17. Limit switch; 18. Flexible pad. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0025] Example 1
[0026] Reference Figure 1-6A quality inspection device for automotive stamped parts includes a frame 1, on which a conveying mechanism for transporting the stamped parts to be tested is mounted. A controller 2 is fixedly mounted on the frame 1 to control the operation of the conveying mechanism. Two symmetrically distributed movable frames 3 are located at the upper end of the frame 1, each with a push plate 4 fixedly mounted. The push plates 4 on both sides are arranged opposite each other. A guide rod 5 is fixedly mounted on the frame 1, passing through the two movable frames 3 and slidably mounted on the guide rod 5. A bidirectional lead screw 6 is rotatably mounted on the frame 1, passing through the two movable frames 3 and threadedly connected to them. A servo motor 7 is fixedly mounted on the frame 1, with its output shaft fixedly connected to the bidirectional lead screw 6. A horizontally positioned measuring ruler 8 is fixedly mounted on the frame 1. The servo motor 7 is electrically connected to the controller 2, which controls the operation of the servo motor 7.
[0027] The conveying mechanism includes two rotatable rollers 9 mounted on a frame 1, with a conveyor belt 10 installed between the two rollers 9. A stepper motor 11 is fixedly mounted on the frame 1, and the output shaft of the stepper motor 11 is fixedly connected to one side of the roller 9. The stepper motor 11 is electrically connected to a controller 2, which controls the operation of the stepper motor 11.
[0028] For a schematic diagram of the device's operation, please refer to the diagram. Figure 1 , Figure 2 and Figure 4 As shown, by placing the automotive stamping parts 111 to be tested one by one at equal intervals on the conveyor belt 10, the stepper motor 11 is controlled by the controller 2 to work. The stepper motor 11 drives the rotating roller 9 to rotate intermittently, and the conveyor belt 10 intermittently transports the stamping parts on it. The stamping parts are transported to the measuring ruler 8 and stop for a period of time to perform width measurement.
[0029] At this time, the controller controls the servo motor 7 to work, which drives the bidirectional lead screw 6 to rotate, causing the movable frames 3 on both sides to move synchronously along the guide rod 5 in opposite directions. This causes the push plates 4 on both sides to move towards the stamping part. The push plates 4 work together to straighten the stamping part. The moving distance of the push plates 4 is preset and kept fixed, so that the two push plates 4 contact the stamping part and apply a small pressure. The bottom surface of the stamping part remains in contact with the conveyor belt 10. The push plates 4 are made of rubber and have a certain degree of elasticity. After straightening, the stamping part is located below the measuring ruler 8. The operator visually inspects the stamping part through the measuring ruler 8 and can select stamping parts with large size differences. Afterward, the servo motor 7 drives the push plates 4 on both sides to reset, and the conveyor belt 10 continues to transport the stamping parts. The measured stamping parts fall out from one end of the conveyor belt 10, and the subsequent stamping parts move to the measuring ruler 8 for measurement.
[0030] The testing device of this application eliminates the need for staff to operate a measuring ruler to align the stamped parts, and can straighten tilted stamped parts, simplifying the operation of staff and saving time, thereby improving testing efficiency.
[0031] Based on Example 1, Example 2:
[0032] Reference Figure 2-6 An inclined guide plate 12 is fixedly installed on the frame 1, with its upper end extending to one end of the conveyor belt 10. The guide plate 12 guides the stamped parts discharged from one end of the conveyor belt 10, causing them to fall slowly. Limiting plates 13 are provided on both sides of the upper end of the conveyor belt 10. The limiting plates 13 are strip-shaped and fixedly installed on the frame 1. The limiting plates 13 limit the stamped parts on the conveyor belt 10, preventing them from falling out from both sides of the conveyor belt 10.
[0033] The movable frame 3 is fitted with a sliding rectangular sleeve 14, and a spring 15 is installed inside the rectangular sleeve 14. The two ends of the spring 15 are fixedly connected to the rectangular sleeve 14 and the movable frame 3, respectively. Two spaced lighting lamps 16 are fixedly installed on the frame 1. One end of the rectangular sleeve 14 is equipped with a limit switch 17, which is used to control the operation of the lighting lamps 16. A flexible pad 18 is fixedly connected to the end of the rectangular sleeve 14.
[0034] The rectangular sleeve 14 moves synchronously with the movable frame 3. The flexible pad 18 at one end of the rectangular sleeve 14 presses against the limit switch 17, and the limit switch 17 is pressed. As the rectangular sleeve 14 continues to move, it slides on the movable frame 3 and the spring 15 is compressed. The limit switch 17 controls the circuit of the lighting lamp 16 to be turned on, and the lighting lamp 16 emits light. In environments with poor light, it can provide illumination for the visual inspection work of the workers. When the visual inspection is completed, the push plate 4 leaves the stamping part, and the limit switch 17 is not compressed and returns to the open state, so that the lighting lamp 16 emits light intermittently, which can save electricity.
[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A quality inspection device for automotive stamped parts, comprising a frame (1), characterized in that, The frame (1) is provided with a conveying mechanism for conveying the stamped parts to be tested. The frame (1) is fixedly installed with a controller (2) for controlling the operation of the conveying mechanism. The upper end of the frame (1) is provided with two symmetrically distributed movable frames (3). Each movable frame (3) is fixedly installed with a push plate (4). The push plates (4) on both sides are arranged opposite to each other. The frame (1) is fixedly installed with a guide rod (5). The guide rod (5) passes through the two movable frames (3) and the movable frames (3) are slidably installed on the guide rod (5). The frame (1) is rotatably installed with a bidirectional lead screw (6). The bidirectional lead screw (6) passes through the two movable frames (3) and is threadedly connected to the movable frames (3). The frame (1) is fixedly installed with a servo motor (7). The output shaft of the servo motor (7) is fixedly connected to the bidirectional lead screw (6). The frame (1) is fixedly installed with a horizontally set measuring ruler (8).
2. The quality inspection device for automotive stamped parts according to claim 1, characterized in that, The servo motor (7) is electrically connected to the controller (2), and the controller (2) is used to control the operation of the servo motor (7).
3. The quality inspection device for automotive stamped parts according to claim 1, characterized in that, The conveying mechanism includes two rotatable rollers (9) mounted on a frame (1), a conveyor belt (10) is installed between the two rollers (9), a stepper motor (11) is fixedly mounted on the frame (1), and the output shaft of the stepper motor (11) is fixedly connected to one side of the roller (9).
4. The quality inspection device for automotive stamping parts according to claim 3, characterized in that, The stepper motor (11) is electrically connected to the controller (2), which is used to control the operation of the stepper motor (11).
5. The quality inspection device for automotive stamping parts according to claim 3, characterized in that, An inclined guide plate (12) is fixedly installed on the frame (1), and the upper end of the guide plate (12) extends to one end of the conveyor belt (10).
6. The quality inspection device for automotive stamping parts according to claim 3, characterized in that, Limiting plates (13) are provided on both sides of the upper end of the conveyor belt (10). The limiting plates (13) are strip-shaped and are fixedly installed on the frame (1).
7. The quality inspection device for automotive stamping parts according to claim 1, characterized in that, The upper end of the movable frame (3) is fitted with a sliding rectangular sleeve (14), and a spring (15) is provided inside the rectangular sleeve (14). The two ends of the spring (15) are fixedly connected to the rectangular sleeve (14) and the movable frame (3) respectively.
8. The quality inspection device for automotive stamped parts according to claim 7, characterized in that, Two spaced lighting lamps (16) are fixedly installed on the frame (1). A limit switch (17) is provided at one end of the rectangular sleeve (14). The limit switch (17) is used to control the operation of the lighting lamps (16). A flexible pad (18) is fixedly connected to the end of the rectangular sleeve (14).