A machine vision-based automotive parts inspection device

Abstract

This utility model relates to the field of automotive parts inspection technology, and discloses an automotive parts inspection device based on machine vision. The device includes a mounting bracket with a reinforcing crossbar fixedly connected to its surface, and a limit screw connected internally to the mounting bracket. This utility model uses a limit plate fixed to a lifting slide plate via an auxiliary support rod, forming a closed positioning area with the top of the mounting bracket. After the workpiece is placed, it can automatically align with the center line through the limit plate. The plate is made of elastic material with adjustable contact surface pressure to avoid scratching the surface of precision parts. The device features a modular structure, automated adjustment, precise positioning, and integrated lighting, solving the problems of poor stability, low efficiency, and weak adaptability of traditional inspection devices. It is particularly suitable for multi-variety, high-precision automotive parts inspection scenarios in flexible production lines, and has significant advantages such as high efficiency, reliability, and ease of maintenance.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts inspection technology, and in particular to an automotive parts inspection device based on machine vision. Background Technology

[0002] Visual inspection of automotive parts refers to the process of using machine vision technology to perform high-precision inspection of automotive parts. By simulating the human visual system, machine vision can "see" the appearance of parts and "determine" whether defects exist. Its core principle is to acquire multi-angle, high-resolution images of parts using a camera, and then transmit the acquired image signals to a computer for processing and analysis. During processing, the system uses pre-programmed algorithms and models to analyze each pixel in the image, extracting key features such as shape, color, and texture, and comparing them with pre-stored standard features to determine whether defects exist. Visual inspection technology uses machine vision products (such as CMOS and CCD cameras) to convert the target to be inspected into image signals, which are then processed and analyzed by an image processing system.

[0003] An existing machine vision-based automotive parts inspection device has a complex overall structure. When the device is performing visual inspection of products, it is not easy to ensure the stability of the device during transmission on the conveyor line, thus affecting the efficiency of the device in performing visual inspection of products. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an automotive parts inspection device based on machine vision.

[0005] This utility model is achieved using the following technical solution: a machine vision-based automotive parts inspection device, including a mounting bracket, a reinforcing crossbar fixedly connected to the surface of the mounting bracket, a limiting screw connected internally to the mounting bracket, a limiting support plate fixedly connected to the top of the limiting screw, and a supporting upright fixedly connected to the rear end of the mounting bracket;

[0006] An auxiliary crossbar is fixedly connected to the front of the support pole. A vision inspection component is fixedly connected inside the auxiliary crossbar. An installation frame is fixedly connected to the rear end of the mounting bracket. A cylinder is inserted into the installation frame. A lifting slide is fixedly connected to the output end of the cylinder. Auxiliary support rods are fixedly connected to the left and right ends of the lifting slide. A limit plate is fixedly connected to the bottom of the auxiliary support rod. An auxiliary lighting lamp is fixedly connected to the surface of the auxiliary support rod.

[0007] As a further improvement to the above solution, the number of reinforcing crossbars is set to two, and the two reinforcing crossbars are symmetrically distributed vertically around the mounting bracket, with the limiting support plate located inside the mounting bracket.

[0008] Through the above technical solution, the two reinforcing crossbars are symmetrically distributed vertically around the mounting bracket, and the supporting uprights and auxiliary crossbars are symmetrically arranged horizontally to form a grid-shaped stable structure. The overall rigidity is improved, which effectively suppresses image jitter caused by external vibration during the detection process and ensures the stability of the images acquired by the vision inspection components. The modular assembly design allows the equipment to be quickly disassembled or reassembled to adapt to the layout requirements of different production lines.

[0009] As a further improvement to the above solution, the limiting screw and the limiting support plate are symmetrically distributed on the left and right sides with the mounting bracket as the center, and the limiting screw extends through the mounting bracket into the interior of the mounting bracket.

[0010] With the above technical solution, the limiting screw and the limiting support plate are symmetrically distributed left and right. Vertical fine adjustment is achieved through threaded engagement, which can quickly match the testing needs of automotive parts of different heights without replacing the base. The limiting support plate has built-in anti-slip texture to prevent the part under test from sliding.

[0011] As a further improvement to the above scheme, the number of the supporting uprights and auxiliary crossbars is set to two, and the two supporting uprights and auxiliary crossbars are symmetrically distributed on the left and right sides with the mounting bracket as the center.

[0012] As a further improvement to the above solution, the front of the cylinder contacts the rear end surface of the support column, the cylinder is located at the rear end of the mounting bracket, and the lifting slide plate is slidably connected to the surface of the support column.

[0013] As a further improvement to the above solution, the number of auxiliary support rods and limiting plates is set to two, and the two auxiliary support rods and limiting plates are symmetrically distributed on the left and right sides with the mounting bracket as the center.

[0014] As a further improvement to the above solution, the auxiliary lighting lamp is located at the top of the mounting bracket, and the limiting plate is located at the top of the mounting bracket.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention uses a limiting plate fixed to the lifting slide plate by an auxiliary support rod to form a closed positioning area with the top of the mounting bracket. After the workpiece is placed, it can automatically align with the center line through the limiting plate. The plate is made of elastic material and the contact surface pressure is adjustable to avoid scratching the surface of precision parts. By setting the overall equipment to have a modular structure, automatic adjustment, precise positioning and integrated lighting, it solves the problems of poor stability, low efficiency and weak adaptability of traditional detection devices. It is especially suitable for the detection of multi-variety and high-precision automotive parts in flexible production lines, and has significant advantages such as high efficiency, reliability and easy maintenance.

[0017] This invention incorporates a visual inspection component nested inside an auxiliary crossbar, which forms a triangular support with the supporting upright. A cable channel is pre-reserved inside the crossbar to prevent exposed wiring from becoming tangled, extending the maintenance cycle to more than six months. Key components use standardized interfaces, reducing replacement costs and increasing equipment lifespan. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the side anatomical structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of this utility model from below;

[0022] Figure 5 This is a schematic diagram of the right-side structure of this utility model.

[0023] Explanation of key symbols:

[0024] 1. Mounting bracket; 2. Reinforcing crossbar; 3. Limiting screw; 4. Limiting support plate; 5. Supporting upright; 6. Auxiliary crossbar; 7. Vision inspection component; 8. Mounting frame; 9. Cylinder; 10. Lifting slide plate; 11. Auxiliary support rod; 12. Limiting plate; 13. Auxiliary lighting. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Example:

[0026] Please combine Figure 1-5This embodiment of an automotive parts inspection device based on machine vision includes a mounting bracket 1, a reinforcing crossbar 2 fixedly connected to the surface of the mounting bracket 1, a limiting screw 3 connected to the internal thread of the mounting bracket 1, a limiting support plate 4 fixedly connected to the top of the limiting screw 3, and a supporting upright 5 fixedly connected to the rear end of the mounting bracket 1.

[0027] An auxiliary crossbar 6 is fixedly connected to the front of the support pole 5. A vision inspection component 7 is fixedly connected inside the auxiliary crossbar 6. An installation frame 8 is fixedly connected to the rear end of the mounting bracket 1. A cylinder 9 is inserted into the installation frame 8. A lifting slide plate 10 is fixedly connected to the output end of the cylinder 9. Auxiliary support rods 11 are fixedly connected to the left and right ends of the lifting slide plate 10. A limit plate 12 is fixedly connected to the bottom of the auxiliary support rod 11. An auxiliary lighting lamp 13 is fixedly connected to the surface of the auxiliary support rod 11. By setting the limit plate 12, it is fixed to the lifting slide plate 10 through the auxiliary support rod 11, forming a closed positioning area with the top of the mounting bracket 1. After the workpiece is placed, it can automatically align with the center line through the limit plate 12. The plate is made of elastic material, and the contact surface pressure is adjustable to avoid scratching the surface of precision parts. By setting the overall modular structure, automatic adjustment, precise positioning and integrated lighting design of the equipment, it solves the problems of poor stability, low efficiency and weak adaptability of traditional inspection devices. It is especially suitable for multi-variety and high-precision automotive parts inspection scenarios in flexible production lines, and has significant advantages such as high efficiency, reliability and easy maintenance.

[0028] The number of reinforcing crossbars 2 is set to two, and the two reinforcing crossbars 2 are symmetrically distributed vertically around the mounting bracket 1. The limiting support plate 4 is located inside the mounting bracket 1.

[0029] Two reinforcing crossbars 2 are symmetrically distributed vertically around the mounting bracket 1, and the supporting uprights 5 and auxiliary crossbars 6 are symmetrically arranged horizontally to form a grid-shaped stable structure. The overall rigidity is improved, which effectively suppresses image jitter caused by external vibration during the detection process and ensures the stability of the images acquired by the vision inspection component 7. The modular assembly design allows the equipment to be quickly disassembled or reassembled to adapt to the layout requirements of different production lines.

[0030] The limiting screw 3 and the limiting support plate 4 are symmetrically distributed on the left and right sides with the mounting bracket 1 as the center. The limiting screw 3 extends through the mounting bracket 1 and into the interior of the mounting bracket 1.

[0031] The limiting screw 3 and the limiting support plate 4 are symmetrically distributed on the left and right sides. Vertical fine adjustment can be achieved through threaded engagement, which can quickly match the testing needs of automotive parts of different heights without replacing the base. The limiting support plate 4 has built-in anti-slip texture to prevent the part under test from sliding.

[0032] The number of support poles 5 and auxiliary crossbars 6 is set to two. The two support poles 5 and auxiliary crossbars 6 are symmetrically distributed on the left and right sides with the mounting bracket 1 as the center. A visual inspection component 7 is set and nested inside the auxiliary crossbar 6. The latter forms a triangular support with the support poles 5. Cable channels are reserved inside the crossbar to avoid exposed wires from getting tangled. The maintenance cycle is extended to more than half a year. Key components use standardized interfaces, which reduces replacement costs and increases equipment life.

[0033] The front of cylinder 9 contacts the rear end surface of support rod 5. Cylinder 9 is located at the rear end of mounting bracket 1. Lifting slide plate 10 is slidably connected to the surface of support rod 5.

[0034] The number of auxiliary support rods 11 and limiting plates 12 is set to two, and the two auxiliary support rods 11 and limiting plates 12 are symmetrically distributed on the left and right sides with the mounting bracket 1 as the center.

[0035] The auxiliary lighting lamp 13 is located at the top of the mounting bracket 1, and the limiting plate 12 is located at the top of the mounting bracket 1.

[0036] The implementation principle of the machine vision-based automotive parts inspection device in this application embodiment is as follows: By setting a limiting plate 12 and fixing it to the lifting slide plate 10 through the auxiliary support rod 11, a closed positioning area is formed with the top of the mounting bracket 1. After the workpiece is placed, it can automatically align with the center line through the limiting plate 12. The plate is made of elastic material and the contact surface pressure is adjustable to avoid scratching the surface of precision parts. By setting the overall equipment to have a modular structure, automatic adjustment, precise positioning and integrated lighting design, the problems of poor stability, low efficiency and weak adaptability of traditional inspection devices are solved. It is especially suitable for multi-variety and high-precision automotive parts inspection scenarios in flexible production lines. It has significant advantages such as high efficiency, reliability and easy maintenance. By setting the vision inspection component 7 to be nested inside the auxiliary crossbar 6, the latter and the supporting upright 5 form a triangular support. The crossbar has a reserved cable channel to avoid exposed wire entanglement and extend the maintenance cycle to more than half a year. The key components adopt standardized interfaces, which reduces replacement costs and increases equipment life.

[0037] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A machine vision-based automotive parts inspection device, characterized in that, The mounting bracket (1) is fixedly connected to a reinforcing crossbar (2) on its surface. A limiting screw (3) is threadedly connected to the inside of the mounting bracket (1). A limiting support plate (4) is fixedly connected to the top of the limiting screw (3). A supporting upright (5) is fixedly connected to the rear end of the mounting bracket (1). An auxiliary crossbar (6) is fixedly connected to the front of the support pole (5). A visual inspection component (7) is fixedly connected inside the auxiliary crossbar (6). An installation frame (8) is fixedly connected to the rear end of the mounting bracket (1). A cylinder (9) is inserted inside the installation frame (8). A lifting slide plate (10) is fixedly connected to the output end of the cylinder (9). Auxiliary support rods (11) are fixedly connected to the left and right ends of the lifting slide plate (10). A limit plate (12) is fixedly connected to the bottom of the auxiliary support rod (11). An auxiliary lighting lamp (13) is fixedly connected to the surface of the auxiliary support rod (11).

2. The machine vision-based automotive parts inspection device as described in claim 1, characterized in that: The number of the reinforcing crossbars (2) is set to two, and the two reinforcing crossbars (2) are symmetrically distributed vertically around the mounting bracket (1). The limiting support plate (4) is located inside the mounting bracket (1).

3. The machine vision-based automotive parts inspection device as described in claim 1, characterized in that: The limiting screw (3) and the limiting support plate (4) are symmetrically distributed on the left and right sides with the mounting bracket (1) as the center. The limiting screw (3) extends through the mounting bracket (1) and into the interior of the mounting bracket (1).

4. The machine vision-based automotive parts inspection device as described in claim 1, characterized in that: The number of the support poles (5) and auxiliary crossbars (6) is set to two, and the two support poles (5) and auxiliary crossbars (6) are symmetrically distributed on the left and right sides with the mounting bracket (1) as the center.

5. The machine vision-based automotive parts inspection device as described in claim 1, characterized in that: The front of the cylinder (9) is in contact with the rear end surface of the support rod (5). The cylinder (9) is located at the rear end of the mounting bracket (1). The lifting slide plate (10) is slidably connected to the surface of the support rod (5).

6. The machine vision-based automotive parts inspection device as described in claim 1, characterized in that: The number of the auxiliary support rod (11) and the limiting plate (12) is set to two, and the two auxiliary support rods (11) and the limiting plate (12) are symmetrically distributed on the left and right sides with the mounting bracket (1) as the center.

7. The machine vision-based automotive parts inspection device as described in claim 1, characterized in that: The auxiliary lighting lamp (13) is located at the top of the mounting bracket (1), and the limiting plate (12) is located at the top of the mounting bracket (1).

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