A visual detection system for outer appearance defects of a cylinder liner

Abstract

The utility model provides a kind of cylinder liner appearance defect visual inspection system, comprising: main body frame, still including the clamping mechanism for supporting and rotating cylinder liner being installed on the main body frame;Still including the first vertical servo module being installed on the main body frame, the inner wall detection line array camera for detecting cylinder liner inner wall quality is installed on the first vertical servo module;Still including the support arm being installed on the main body frame, the first lens for reflecting cylinder liner bottom state is installed on the support arm top portion.The utility model realizes the synchronous detection of multiple surfaces of cylinder liner in single station by optimizing detection layout, without traditional multi-station step operation, effectively reduce the overall space occupied by equipment, while eliminating the transfer link of cylinder liner between different stations, significantly improve the detection efficiency, shorten the detection time of single cylinder liner.

Description

Technical Field

[0001] This utility model relates to the field of cylinder liner appearance inspection, and in particular to a visual inspection system for cylinder liner appearance defects. Background Technology

[0002] Existing technical solutions for inspecting the inner and outer walls and upper and lower end faces of cylinder liners mostly require multiple stations for inspection, namely, stations for inspecting the inner and outer walls and stations for inspecting the upper and lower end faces. When the cylinder liner is moved to the corresponding station, a servo module is used to move the cylinder liner by a claw, so that the cylinder liner can be moved to the lower end of the corresponding station for inspection. This results in long inspection time, and multiple stations also lead to large space occupation of the inspection equipment. Furthermore, claws are also needed to move the cylinder liner for centering, which takes a lot of time and requires manual adjustment of the claw position during equipment debugging, which is quite cumbersome. Therefore, a system is needed to solve the above problems. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the defects of the existing technology. This utility model proposes a visual inspection system for cylinder liner appearance defects.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A visual inspection system for cylinder liner appearance defects includes: a main frame; a clamping mechanism mounted on the main frame for supporting and rotating the cylinder liner; a first vertical servo module mounted on the main frame, on which an inner wall inspection line array camera for detecting the quality of the cylinder liner's inner wall is mounted; a support arm mounted on the main frame, with a first lens mounted on the top of the support arm for reflecting the state of the bottom of the cylinder liner; a second lens mounted on the first vertical servo module for reflecting the state of the top of the cylinder liner, the second lens also reflecting the image from the first lens; and a first outer wall inspection camera mounted on the first vertical servo module. The first outer wall inspection camera is used to capture the reflected image from the second lens; it also includes a second outer wall inspection camera mounted on the main frame. The second outer wall inspection camera is used to inspect the outer surface quality of the cylinder liner. After the cylinder liner is clamped and fixed by the clamping mechanism, the first vertical servo module drives the inner wall inspection line array camera and the first outer wall inspection camera to move to the inspection point position. The clamping mechanism drives the cylinder liner to rotate. At this time, the first lens reflects the bottom image of the cylinder liner, and the second lens reflects the image on the first lens and the top image of the cylinder liner. The image reflected by the second lens is received by the first outer wall inspection camera. With the cooperation of the inner wall inspection line array camera and the second outer wall inspection camera, the cylinder liner surface can be fully inspected in one go.

[0005] Preferably, the clamping mechanism includes a first longitudinal servo module mounted on the main frame, a three-jaw chuck mounted on the first longitudinal servo module, and the first longitudinal servo module drives the three-jaw chuck to move; it also includes a geared motor mounted on the first longitudinal servo module; it also includes a mounting block mounted on the clamping end of the three-jaw chuck; a servo motor mounted on the mounting block; and a support shaft mounted on the output shaft of the servo motor.

[0006] Preferably, the output end of the geared motor is connected to the chuck shaft of the three-jaw chuck, and the geared motor is used to drive the three-jaw chuck to perform clamping action.

[0007] Preferably, the output shaft of the servo motor passes through the mounting block via a bearing.

[0008] Preferably, the support shaft consists of two cylinders with different diameters, with the larger diameter cylinder located near the servo motor end, and the two cylinders forming a stepped shape.

[0009] Preferably, it also includes a cleaning mechanism for cleaning cylinder liners.

[0010] Preferably, the cleaning mechanism includes a second vertical servo module mounted on the main frame, on which a cleaning component for cleaning the cylinder liner is mounted, and the second vertical servo module drives the cleaning component to move; it also includes a second longitudinal servo module mounted on the main frame, on which a first oil baffle is mounted; it further includes a cylinder liner support seat mounted at the bottom inside the first oil baffle; and it further includes a collection component for collecting waste oil mounted between the first oil baffle and the main frame.

[0011] Preferably, the cylinder liner support consists of a central ring and an L-shaped rod installed on the outside of the ring, with the bottom of the L-shaped rod installed inside the bottom of the first oil baffle.

[0012] Preferably, the cleaning assembly includes a first air knife for cleaning the inner wall of the cylinder liner, mounted on the second vertical servo module; and a second oil baffle mounted on the second vertical servo module; the second oil baffle is equidistantly inlaid with a plurality of second air knives for cleaning the outer wall of the cylinder liner.

[0013] Preferably, the collection assembly includes a first oil drain pipe installed at the bottom of the first oil baffle; a sludge collection trough installed on the main frame; and a second oil drain pipe installed at the bottom of the sludge collection trough. The bottom of the sludge collection trough is inclined toward the second oil drain pipe. Waste oil flows into the sludge collection trough through the first oil drain pipe at the bottom of the first oil baffle, flows to the second oil drain pipe under gravity, and is finally discharged through the second oil drain pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model include: 1. This utility model optimizes the inspection layout, enabling simultaneous inspection of multiple surfaces of the cylinder liner at a single workstation. This eliminates the need for traditional multi-station step-by-step operations, effectively reducing the overall space occupied by the equipment. It also eliminates the need for transferring the cylinder liner between different workstations, significantly improving inspection efficiency and shortening the inspection time for a single cylinder liner.

[0015] 2. During the testing process of this utility model, the cylinder liner does not need to slide against the main frame or other components, thus avoiding surface wear caused by friction and ensuring the quality of the cylinder liner. At the same time, the cleaning mechanism removes surface oil and other impurities, reducing interference factors and improving the accuracy and reliability of the test results, ensuring comprehensive identification of cylinder liner surface defects.

[0016] 3. This utility model uses a three-jaw chuck structure to suspend and support the cylinder liner, so that the lower end of the cylinder liner can avoid direct contact with the main frame and other structures. This allows the lower end face of the cylinder liner to be left empty during inspection, avoiding the need to clamp and lift the cylinder liner to inspect the lower end face in traditional workstations. This allows multiple inspection stations to simultaneously inspect the upper and lower end faces and inner and outer walls of the cylinder liner. Attached Figure Description

[0017] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein: Figure 1 This is a schematic diagram of the structure of a visual inspection system for cylinder liner appearance defects proposed in this utility model; Figure 2 This is a bottom view of a visual inspection system for cylinder liner appearance defects proposed in this utility model; Figure 3 This is a side view of a visual inspection system for cylinder liner appearance defects proposed in this utility model. Figure 4 This is a cross-sectional view of a visual inspection system for cylinder liner appearance defects proposed in this utility model. Figure 5 For the appendix Figure 1 Enlarged view of point A in the middle; The following are the labeling elements in the diagram: 1. Main frame; 2. First vertical servo module; 3. First longitudinal servo module; 4. Inner wall detection line array camera; 5. First outer wall detection camera; 6. Second outer wall detection camera; 7. Support arm; 8. First lens; 9. Second lens; 10. Three-jaw chuck; 11. Servo motor; 12. Support shaft; 13. Second longitudinal servo module; 14. First oil baffle; 15. Cylinder liner support; 16. Second vertical servo module; 17. First air knife; 18. Second oil baffle; 19. Second air knife; 20. First oil drain pipe; 21. Sewage collection trough; 22. Second oil drain pipe; 23. Gear motor; 24. Mounting block; 25. Strip light source. Detailed Implementation

[0018] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0019] According to one embodiment of the present invention, in conjunction with Figures 1-5 As shown.

[0020] A visual inspection system for cylinder liner appearance defects includes: a main frame 1, which consists of a base plate and a vertical plate bolted to the top of the base plate, forming a T-shaped structure between the base plate and the vertical plate. A support plate for auxiliary support of the vertical plate is welded and fixed to the side of the vertical plate. The system also includes a clamping mechanism mounted on the main frame 1 for supporting and rotating the cylinder liner. It further includes a first vertical servo module 2 bolted to the main frame 1, with an inner wall detection line array camera 4 for detecting the quality of the cylinder liner's inner wall bolted to a moving block of the first vertical servo module 2. The first vertical servo module 2 drives the inner wall detection line array camera 4 to move. It also includes a support arm 7 bolted to the main frame 1, with a first lens 8 embedded and fixed to the top of the support arm 7 for reflecting the state of the bottom of the cylinder liner. Finally, it includes a second lens 9 embedded and fixed to the bottom of the moving block of the first vertical servo module 2 for reflecting the state of the top of the cylinder liner, and the second lens 9 can also reflect the image from the first lens 8. The system also includes a first outer wall inspection camera 5, bolted to the moving block of the first vertical servo module 2. The first outer wall inspection camera 5 captures the reflected image from the second lens 9, and the first vertical servo module 2 drives the first outer wall inspection camera 5 to move. It also includes a second outer wall inspection camera 6, bolted to the main frame 1 and mounted on a bracket. The second outer wall inspection camera 6 inspects the outer surface quality of the cylinder liner. After the cylinder liner is clamped and fixed by the clamping mechanism, the first vertical servo module 2 drives the inner wall inspection line array camera 4 and the first outer wall inspection camera 5 to move to the inspection point. The clamping mechanism rotates the cylinder liner. At this time, the first lens 8 reflects the bottom image of the cylinder liner, and the second lens 9 reflects the image on the first lens 8 and the top image of the cylinder liner. The image reflected by the second lens 9 is received by the first outer wall inspection camera 5. Combined with the inner wall inspection line array camera 4 and the second outer wall inspection camera 6, a comprehensive inspection of the cylinder liner surface can be performed in one operation.

[0021] Specifically, the clamping mechanism includes a first longitudinal servo module 3 bolted to the main frame 1, a three-jaw chuck 10 bolted to the moving block of the first longitudinal servo module 3, and the first longitudinal servo module 3 driving the three-jaw chuck 10 to move; it also includes a geared motor 23 bolted to the moving block of the first longitudinal servo module 3 via a mounting bracket, wherein the output end of the geared motor 23 is connected to the chuck shaft of the three-jaw chuck 10 via a coupling, and the geared motor 23 is used to drive the three-jaw chuck 10 to perform clamping actions; it also includes a mounting block 24 bolted to the clamping end of the three-jaw chuck 10 via a support rod with a groove on one side of the top; a servo motor 11 bolted to the mounting block 24, wherein the output shaft of the servo motor 11 passes through the mounting block 24 via a bearing; and a support shaft 12 mounted on the output shaft of the servo motor 11 via a coupling, wherein the support shaft 12 is integrally formed from two cylinders of different diameters, with the larger diameter cylinder located at the end closer to the servo motor 11, and the two cylinders forming The cylinder liner is stepped, and during clamping, the cylinder liner is placed on the stepped surface of the support shaft 12 by the gantry robot. Then, the reduction motor 23 drives the three-jaw chuck 10 to perform a clamping action, causing the support shaft 12 to move towards the cylinder liner until the cylinder liner is clamped and fixed. Since the clamping action of the three-jaw chuck 10 is performed with the clamping end close to the center point of the three-jaw chuck 10, the cylinder liner can be centered at the same time as the clamping is completed. After clamping is completed, the servo motor 11 is started to drive the support shaft 12 to rotate, thereby causing the clamped cylinder liner to rotate. The rotation allows the first outer wall inspection camera 5, the inner wall inspection line array camera 4, and the second outer wall inspection camera 6 to perform comprehensive inspections of the cylinder liner. The cylinder liner is suspended and supported by the three-jaw chuck 10 structure, which prevents the lower end of the cylinder liner from directly contacting the main frame 1 and other structures. This allows a portion of the lower end face of the cylinder liner to be left unattended during inspection, avoiding the need to clamp and lift the cylinder liner to inspect its lower end face in traditional workstations. This enables multiple inspection stations to simultaneously inspect the upper and lower end faces, as well as the inner and outer walls of the cylinder liner.

[0022] In this embodiment, a cleaning mechanism for cleaning cylinder liners is also included.

[0023] Specifically, the cleaning mechanism includes a second vertical servo module 16 bolted to the main frame 1, a cleaning component for cleaning cylinder liners bolted to the moving block of the second vertical servo module 16, and the second vertical servo module 16 driving the cleaning component to move; it also includes a second longitudinal servo module 13 bolted to the main frame 1, a first oil baffle 14 bolted to the moving block of the second longitudinal servo module 13, the first oil baffle 14 being barrel-shaped; it also includes a cylinder liner support 15 welded to the bottom inside of the first oil baffle 14, wherein the cylinder liner support 15 consists of a central ring and an L-shaped rod welded to the outside of the ring, the bottom of the L-shaped rod being welded and fixed to the bottom inside of the first oil baffle 14; and it also includes a collection component for collecting waste oil installed between the first oil baffle 14 and the main frame 1.

[0024] Specifically, the cleaning assembly includes a first air knife 17 for cleaning the inner wall of the cylinder liner, which is bolted to the moving block of the second vertical servo module 16; and a second oil baffle 18, which is bolted to the moving block of the second vertical servo module 16, wherein the second oil baffle 18 is cylindrical; a plurality of second air knives 19 for cleaning the outer wall of the cylinder liner are equidistantly embedded and fixed on the second oil baffle 18. After the cylinder liner is placed on top of the cylinder liner support 15, the second vertical servo module 13 drives the cylinder liner support 15 to move directly below the second oil baffle 18, and the second vertical servo module 16 then drives the first air knife 17 and the second oil baffle 18 to move downward until the second oil baffle 18 is fitted on the outer side of the cylinder liner. The first air knife 17 and the second air knife 19 are then activated, and at this time the second vertical servo module 16 drives the first air knife 17 and the second air knife 19 to move up and down to clean the inner and outer surfaces of the cylinder liner. The waste oil from the cleaning is blocked by the first oil baffle 14 and the second oil baffle 18 and flows into the bottom of the first oil baffle 14.

[0025] Specifically, the collection component includes a first oil drain pipe 20 embedded and fixed at the bottom of the first oil baffle 14; a sludge collection trough 21 fixed to the main frame 1 by bolts; and a second oil drain pipe 22 embedded and fixed at the bottom of the sludge collection trough 21. The bottom of the sludge collection trough 21 is inclined toward the second oil drain pipe 22. Waste oil flows into the sludge collection trough 21 through the first oil drain pipe 20 at the bottom of the first oil baffle 14, flows to the second oil drain pipe 22 under the action of gravity, and is finally discharged through the second oil drain pipe 22.

[0026] In this embodiment, a strip light source 25 for supplementary lighting is also included, which is fixed to the moving block of the first vertical servo module 2 by bolts.

[0027] Working principle: The cylinder liner is placed on the top surface of the cylinder liner support 15. Then, driven by the second longitudinal servo module 13, the cylinder liner is moved to the center of the second oil baffle 18. Under the action of the second vertical servo module 16, the second oil baffle 18 is moved downward until it is fitted on the outside of the cylinder liner. Then, the oil stains on the inner and outer wall surfaces of the cylinder liner are cleaned by the first air knife 17 and the second air knife 19, so as to prevent the oil stains attached to the surface during cylinder liner production from affecting the inspection. At the same time, the second oil baffle 18 can block the oil stains and let the oil stains fall into the interior of the first oil baffle 14. The oil stains are discharged into the sludge collection tank 21 through the first oil drain pipe 20 of the first oil baffle 14, which facilitates the collection of oil stains and reduces oil splashing during cleaning, which pollutes the internal environment of the equipment. Finally, it is discharged through the second oil drain pipe 22.

[0028] Before starting, the three-jaw chuck 10 is positioned away from the first vertical servo module 2. At this time, the external gantry robot can clamp the cleaned cylinder liner using the gripper cylinder and feed it into the upper end of the three-jaw chuck 10. When the distance between the cylinder liner and the three-jaw chuck 10 is short, the reduction motor 23 drives the three-jaw chuck 10 to move through the coupling, allowing the three-jaw chuck 10 to move the support shaft 12 to the lower end of the cylinder liner's lower end face. Then, the gripper cylinder releases, and under the action of the gantry robot, it rises away from the outer wall of the cylinder liner. Then, the first longitudinal servo module 3 drives the three-jaw chuck 10. The cylinder liner is moved to the inspection station. During this movement, the servo motors 11 on the three mounting blocks 24 drive the support shaft 12 to rotate, and the reduction motor 23 drives the three-jaw chuck 10. This allows the three-jaw chuck 10 to press the stepped surface at one end of the support shaft 12 against the lower outer wall surface of the cylinder liner, thus centering the cylinder liner. The three servo motors 11 drive the support shaft 12 to rotate synchronously, enabling the cylinder liner to rotate itself during inspection. While rotating, the cylinder liner's outer wall is inspected by the second outer wall inspection camera 6. The first outer wall inspection camera 5... During inspection, the lower end of the cylinder liner can be reflected by the first lens 8, and the upper end of the cylinder liner can be reflected by the second lens 9. This allows the first outer wall inspection camera 5 and the second outer wall inspection camera 6 to inspect the upper and lower end faces of the cylinder liner simultaneously with the outer wall of the cylinder liner. Under the action of the first vertical servo module 2, the inner wall inspection line scan camera 4 is driven to penetrate into the inner wall of the cylinder liner to inspect the inner wall. When the first vertical servo module 2 moves the inner wall inspection line scan camera 4 downward, it can also move the first outer wall inspection camera 5 downward. The first outer wall inspection camera 5 can also conveniently inspect cylinder liner support shoulders of different heights, so that one station can inspect the inner and outer walls, upper and lower end faces, and support shoulders of the cylinder liner. After the inspection is completed, the first vertical servo module 2 drives the inner wall inspection line array camera 4 to detach from the inside of the cylinder liner. Then, the first longitudinal servo module 3 drives the three-jaw chuck 10 to move away from the first vertical servo module 2. With the cooperation of the gripper cylinder and the gantry robot, the cylinder liner is moved to the finished product outlet or the scrap outlet according to the inspection results. At this point, the entire inspection work is completed.

[0029] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A visual inspection system for cylinder liner appearance defects, comprising: The main frame (1) is characterized in that it further includes a clamping mechanism for supporting and rotating the cylinder liner, which is mounted on the main frame (1); It also includes a first vertical servo module (2) installed on the main frame (1), and an inner wall detection line array camera (4) for detecting the quality of the inner wall of the cylinder liner is installed on the first vertical servo module (2). It also includes a support arm (7) mounted on the main frame (1), and a first lens (8) for reflecting the bottom state of the cylinder liner is mounted on the top of the support arm (7). It also includes a second lens (9) installed on the first vertical servo module (2) for reflecting the state of the top of the cylinder liner, and the second lens (9) can also reflect the image of the first lens (8); It also includes a first outer wall detection camera (5) installed on the first vertical servo module (2), the first outer wall detection camera (5) being used to capture the reflected image of the second lens (9); It also includes a second outer wall inspection camera (6) installed on the main frame (1). The second outer wall inspection camera (6) is used to inspect the outer surface quality of the cylinder liner. After the cylinder liner is clamped and fixed by the clamping mechanism, the first vertical servo module (2) drives the inner wall inspection line array camera (4) and the first outer wall inspection camera (5) to move to the inspection point position. The clamping mechanism drives the cylinder liner to rotate. At this time, the first lens (8) reflects the bottom image of the cylinder liner, and the second lens (9) reflects the image on the first lens (8) and the top image of the cylinder liner. The image reflected by the second lens (9) is received by the first outer wall inspection camera (5). With the cooperation of the inner wall inspection line array camera (4) and the second outer wall inspection camera (6), the cylinder liner surface can be fully inspected at one time.

2. The cylinder liner appearance defect visual inspection system according to claim 1, characterized in that, The clamping mechanism includes a first longitudinal servo module (3) mounted on the main frame (1), a three-jaw chuck (10) mounted on the first longitudinal servo module (3), and the first longitudinal servo module (3) drives the three-jaw chuck (10) to move; it also includes a geared motor (23) mounted on the first longitudinal servo module (3); it also includes a mounting block (24) mounted on the clamping end of the three-jaw chuck (10); a servo motor (11) mounted on the mounting block (24); and a support shaft (12) mounted on the output shaft of the servo motor (11).

3. The cylinder liner appearance defect visual inspection system according to claim 2, characterized in that, The output end of the geared motor (23) is connected to the chuck shaft of the three-jaw chuck (10), and the geared motor (23) is used to drive the three-jaw chuck (10) to perform clamping action.

4. The cylinder liner appearance defect visual inspection system according to claim 2, characterized in that, The output shaft of the servo motor (11) passes through the mounting block (24) via a bearing.

5. The cylinder liner appearance defect visual inspection system according to claim 2, characterized in that, The supporting shaft (12) consists of two cylinders with different diameters. The cylinder with the larger diameter is located at the end near the servo motor (11), and the two cylinders form a stepped shape.

6. The cylinder liner appearance defect visual inspection system according to claim 1, characterized in that, It also includes a cleaning mechanism for cleaning cylinder liners.

7. The cylinder liner appearance defect visual inspection system according to claim 6, characterized in that, The cleaning mechanism includes a second vertical servo module (16) mounted on the main frame (1), on which a cleaning component for cleaning cylinder liners is mounted, and the second vertical servo module (16) drives the cleaning component to move; it also includes a second longitudinal servo module (13) mounted on the main frame (1), on which a first oil baffle (14) is mounted; it also includes a cylinder liner support seat (15) mounted at the bottom inside the first oil baffle (14); and it also includes a collection component for collecting waste oil mounted between the first oil baffle (14) and the main frame (1).

8. The cylinder liner appearance defect visual inspection system according to claim 7, characterized in that, The cylinder liner support (15) consists of a central ring and an L-shaped rod installed on the outside of the ring. The bottom of the L-shaped rod is installed inside the bottom of the first oil baffle (14).

9. The cylinder liner appearance defect visual inspection system according to claim 7, characterized in that, The cleaning assembly includes a first air knife (17) for cleaning the inner wall of the cylinder liner, which is mounted on the second vertical servo module (16); it also includes a second oil baffle (18) mounted on the second vertical servo module (16); a plurality of second air knives (19) for cleaning the outer wall of the cylinder liner are equidistantly embedded and fixed on the second oil baffle (18).

10. The cylinder liner appearance defect visual inspection system according to claim 7, characterized in that, The collection assembly includes a first oil drain pipe (20) installed at the bottom of the first oil baffle (14); it also includes a sludge collection trough (21) installed on the main frame (1); and a second oil drain pipe (22) installed at the bottom of the sludge collection trough (21). The bottom of the sludge collection trough (21) is inclined toward the second oil drain pipe (22). Waste oil flows into the sludge collection trough (21) through the first oil drain pipe (20) at the bottom of the first oil baffle (14), flows toward the second oil drain pipe (22) under the action of gravity, and is finally discharged through the second oil drain pipe (22).

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