Novel crankshaft disc appearance detection machine

Through the automated conveying of the toothed drive belt and guide components, combined with the detection of multi-angle cameras, the problems of low efficiency and low accuracy of the traditional crankshaft disk detector are solved, and efficient and all-round detection results are achieved.

CN223259599UActive Publication Date: 2025-08-22DONGGUAN WEIJIU INTELLIGENT MANUFACTURING TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422429291.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-09
Publication Date
2025-08-22
Estimated Expiration
2034-10-09

AI Technical Summary

Technical Problem

Traditional crankshaft appearance detection machines lack automated conveying and positioning, resulting in low efficiency and low detection accuracy, prone to position offsets and missed detection.

Method used

The toothed drive belt and guide components are used to cooperate with the motor drive to realize the automatic transmission and positioning of the crankshaft disk, and conduct comprehensive inspections through multi-angle cameras to ensure position consistency and comprehensive inspection.

Benefits of technology

It improves the detection efficiency and accuracy of the crankshaft disk, reduces false detection and missed detection, ensures the detection coverage of each angle and detail, and improves the accuracy and comprehensiveness of the detection.

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Abstract

The utility model relates to the technical field of crankshaft disc appearance detection, and discloses a novel crankshaft disc appearance detection machine which comprises a workbench, a first motor is fixedly connected in the workbench, the output end of the first motor is fixedly connected with a connecting column, and a toothed transmission belt is fixedly arranged on the outer wall of the connecting column. A rotating plate is fixedly connected to the outer wall of the connecting column, a push rod is rotatably connected to the interior of the rotating plate, a fixed connecting rod is rotatably connected to the outer wall of the push rod, and a moving plate is fixedly connected to the top of the fixed connecting rod. According to the utility model, the problems that the detection machine is lack of automatic conveying and positioning, the efficiency is low, the position deviation in the conveying process is easily caused, and the detection precision is influenced are solved, the accurate and stable conveying is realized, the position consistency of the crankshaft disc in front of each camera is ensured, the image capture accuracy is improved, and the detection efficiency is improved. And the identification of the appearance defect is more accurate.
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Description

Technical Field

[0001] The utility model relates to the technical field of crankshaft disc appearance detection, in particular to a novel crankshaft disc appearance detection machine. Background Art

[0002] The crankshaft is a core rotating component in a car engine. Any minor surface defect can lead to performance degradation or even mechanical failure. Therefore, visual quality inspection is a critical step in ensuring crankshaft reliability. In the modern automotive manufacturing industry, the use of visual inspection machines, particularly those integrated with machine vision inspection technology, has become particularly important. These machines capture images of the crankshaft using high-precision cameras and analyze its appearance using image processing software, capable of identifying subtle flaws that are imperceptible to the human eye. Using visual inspection machines not only significantly improves inspection speed and accuracy, but also reduces human error, ensuring crankshaft manufacturing quality and playing a significant role in improving overall vehicle performance and consumer satisfaction.

[0003] Traditional crankshaft disc appearance inspection machines utilize machine vision technology for efficient inspection. During operation, the crankshaft disc is first placed on the inspection station, where the machine vision system captures surface images of the disc using a high-definition camera. The system then applies image processing algorithms to analyze the captured images and identify surface defects such as cracks, wear, and stains. Finally, based on pre-set criteria, the inspection machine automatically classifies qualified and unqualified crankshaft discs, enabling rapid and accurate inspection of the disc's appearance quality.

[0004] Traditional crankshaft disc appearance inspection machines often rely on manual positioning of the crankshaft disc and lack automated transportation and positioning. This is not only inefficient, but also difficult to ensure the stability of each transportation. It is easy to cause position deviation during the transportation process, affecting the inspection accuracy and increasing the risk of false detection and missed detection. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a new crankshaft disc appearance inspection machine, which aims to improve the problem that traditional crankshaft disc appearance inspection machines lack automated transportation and positioning, which is not only inefficient but also easily leads to position deviation during transportation, affecting the detection accuracy.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a new crankshaft disk appearance inspection machine, comprising a workbench, the interior of the workbench is fixedly connected to a motor 1, the output end of the motor 1 is fixedly connected to a connecting column, the outer wall of the connecting column is fixedly provided with a toothed transmission belt, the outer wall of the connecting column is fixedly connected to a rotating plate, the interior of the rotating plate is rotatably connected to a push rod, the outer wall of the push rod is rotatably connected to a fixed connecting rod, the top of the fixed connecting rod is fixedly connected to a movable plate, the upper surface of the movable plate is fixedly connected to a storage bracket, the outer wall of the fixed connecting rod is fixedly connected to a slider 1, the interior of the slider 1 is slidably connected to a guide rail 1, the outer wall of the guide rail 1 is fixedly connected to a fixed frame, the top of the fixed frame is provided with a guide assembly, and the guide assembly is used to guide the movement of the fixed frame.

[0007] Furthermore, the guide assembly includes a slider 2, the outer wall of which is fixedly connected to the top of the fixed frame, the interior of the slider 2 is slidably connected to a guide rail 2, and the outer wall of the guide rail 2 is fixedly connected to the inner wall of the workbench.

[0008] Furthermore, the inner wall of the workbench is fixedly connected to a fixed bracket, the outer wall of the fixed bracket is fixedly connected to motor 2, the output end of motor 2 is provided with a transmission belt, the interior of the transmission belt is provided with a driving wheel, the top of the workbench is fixedly connected to fixed top plate 1, the interior of the fixed top plate 1 is fixedly connected to a main-view camera, the top of the workbench is fixedly connected to fixed top plate 2, the interior of the fixed top plate 2 is fixedly connected to an electric guide rail, the output end of the electric guide rail is fixedly connected to a high-precision detail detection camera, the interior of the workbench is fixedly connected to a control panel, and the interior of the workbench is fixedly connected to an auxiliary-view camera.

[0009] Furthermore, the outer wall of the high-precision detail detection camera is slidably connected to the inside of the second fixed top plate, and the second fixed top plate is used to support the high-precision detail detection camera.

[0010] Furthermore, the outer wall of the connecting column is rotatably connected to the inside of the workbench, and the connecting column is used to drive the rotating plate to rotate.

[0011] Furthermore, the outer wall of the second guide rail is fixedly connected to the inner wall of the workbench, and the second guide rail is used to guide the movement of the second slider.

[0012] Furthermore, both ends of the driving wheel are rotatably connected to the interior of the fixed bracket, and the driving wheel is used to drive the crankshaft disk to rotate.

[0013] Furthermore, the transmission belt is arranged inside the fixing bracket, and the transmission belt is used to drive the driving wheels on both sides to rotate.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the present invention, the crankshaft disk is first placed on the storage bracket, and then the motor 1 is started to cooperate with the toothed transmission belt to drive the connecting columns on both sides to rotate, and then the rotating plate, push rod, fixed connecting rod, movable plate and storage bracket are cooperated to drive the crankshaft disk for positioning and transportation. In this process, the slider 1, guide rail 1, fixed frame, slider 2 and guide rail 2 are cooperated to ensure the stability of the crankshaft disk transportation, which solves the problem that the inspection machine lacks automated transportation and positioning, which is not only inefficient but also easily leads to position deviation during transportation, affecting the detection accuracy. Accurate and stable transportation is achieved to ensure the position consistency of the crankshaft disk in front of each camera, thereby improving the accuracy of image capture and making the identification of appearance defects more accurate.

[0016] 2. In the present invention, firstly, the second motor is started to drive the transmission belt, and then the driving wheel is cooperated to drive the crankshaft disc to rotate. At this time, the first fixed top plate on the top, the main view camera, the second fixed top plate, the electric guide rail, the high-precision detail detection camera and the auxiliary view camera are cooperated to perform all-round detection of the crankshaft disc, achieving all-round rotation detection, allowing the camera to capture every angle of the crankshaft disc to ensure that no appearance defects are missed, thereby improving the comprehensiveness of the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a new crankshaft disc appearance inspection machine proposed in the present utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the workbench of a new crankshaft disc appearance inspection machine proposed in the utility model;

[0019] Figure 3 This is a schematic structural diagram of one side of the toothed transmission belt of a new crankshaft disc appearance inspection machine proposed in the present utility model;

[0020] Figure 4 This is a structural diagram of the fixed connecting rod side of a new crankshaft disc appearance inspection machine proposed by the utility model;

[0021] Figure 5 This is a schematic diagram of the internal structure of a fixed bracket of a new crankshaft disc appearance inspection machine proposed in the utility model;

[0022] Figure 6 This is a schematic diagram of the structure of one side of the fixed top plate of a new crankshaft disc appearance inspection machine proposed in the utility model.

[0023] Legend:

[0024] 1. Workbench; 2. Motor 1; 3. Toothed transmission belt; 4. Rotating plate; 5. Push rod; 6. Fixed connecting rod; 7. Moving plate; 8. Storage bracket; 9. Slider 1; 10. Guide rail 1; 11. Fixed bracket; 12. Slider 2; 13. Guide rail 2; 14. Fixed bracket; 15. Motor 2; 16. Transmission belt; 17. Driving wheel; 18. Auxiliary view camera; 19. Fixed top plate 1; 20. Main view camera; 21. Fixed top plate 2; 22. Electric guide rail; 23. High-precision detail detection camera; 24. Control panel; 25. Connecting column. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Reference Figure 1 - Figure 4The present invention provides an embodiment of a novel crankshaft disk appearance inspection machine, comprising a workbench 1, the interior of the workbench 1 is fixedly connected to a motor 2, the output end of the motor 2 is fixedly connected to a connecting column 25, the outer wall of the connecting column 25 is fixedly provided with a toothed transmission belt 3, the output end of the motor 2 drives the connecting column 25 to rotate, and then drives the toothed transmission belt 3 to run through the connecting column 25, at this time, the connecting columns 25 on both sides are driven to rotate synchronously through the toothed transmission belt 3, the outer wall of the connecting column 25 is fixedly connected to a rotating plate 4, the internal rotation of the rotating plate 4 is connected to a push rod 5, the outer wall of the push rod 5 is rotatably connected to a fixed connecting rod 6, the top of the fixed connecting rod 6 is fixedly connected to a moving plate 7, the upper surface of the moving plate 7 is fixedly connected to a storage bracket 8, the rotating plates 4 on both sides are driven to rotate through the connecting column 25, and then the push rod 5 is driven to move through the rotating plate 4, and then one end of the fixed connecting rod 6 is driven to move through the push rod 5, at this time The other end of the fixed link 6 pushes the movable plate 7 and the storage bracket 8 to move in an elliptical shape, thereby transporting the crankshaft disk forward. The outer wall of the fixed link 6 is fixedly connected to a slider 9, and the inner sliding connection of the slider 9 is connected to a guide rail 10. The outer wall of the guide rail 10 is fixedly connected to a fixed frame 11. The movement of the fixed link 6 drives the slider 9 to slide on the outer wall of the guide rail 10, thereby guiding the vertical movement of the fixed link 6. A guide assembly is provided on the top of the fixed frame 11, and the guide assembly is used to guide the movement of the fixed frame 11. The guide assembly includes a slider 2 12, and the outer wall of the slider 2 12 is fixedly connected to the top of the fixed frame 11. The inner sliding connection of the slider 2 12 is connected to a guide rail 2 13. The outer wall of the guide rail 2 13 is fixedly connected to the inner wall of the workbench 1. When the fixed link 6 moves, the slider 2 12 will be driven by the fixed frame 11 to slide on the outer wall of the guide rail 2 13, thereby guiding the lateral movement of the fixed link 6.

[0027] Reference Figure 1 、 Figure 5 and Figure 6The inner wall of the workbench 1 is fixedly connected with a fixed bracket 14, and the outer wall of the fixed bracket 14 is fixedly connected with a motor 2 15. The output end of the motor 2 15 is provided with a transmission belt 16, and the interior of the transmission belt 16 is provided with a driving wheel 17. The transmission belt 16 is driven by the motor 2 15 to run, and then the driving wheels 17 on both sides are driven to rotate by the transmission belt 16, and then the crankshaft disk is driven to rotate by the driving wheel 17, so as to facilitate comprehensive appearance inspection. The top of the workbench 1 is fixedly connected with a fixed top plate 19, and the interior of the fixed top plate 19 is fixedly connected with a main-view camera 20. The surface of the crankshaft disk is inspected by the main-view camera 20. The top of the workbench 1 is fixedly connected with a fixed top plate 21, and the interior of the fixed top plate 21 is fixedly connected with an electric guide rail 22. The output end of the electric guide rail 22 is fixedly connected with a high-precision detail detection camera 23. The high-resolution lens and macro shooting capability of the high-precision detail detection camera 23 can be used to detect tiny cracks or specific geometric features of the crankshaft disk. At the same time, it can also be inspected by electric The moving guide rail 22 drives the high-precision detail detection camera 23 to perform mobile detection. The interior of the workbench 1 is fixedly connected to a control panel 24, which makes it convenient to observe the detection results. The interior of the workbench 1 is fixedly connected to an auxiliary perspective camera 18, which further detects the crankshaft disk through the auxiliary perspective camera 18, thereby capturing details that cannot be observed by the main perspective camera 20. The outer wall of the high-precision detail detection camera 23 is slidably connected to the interior of the fixed top plate 21, and the fixed top plate 21 is used to support the high-precision detail detection camera 23. The outer wall of the connecting column 25 is rotatably connected to the interior of the workbench 1, and the connecting column 25 is used to drive the rotating plate 4 to rotate. The outer wall of the guide rail 2 13 is fixedly connected to the inner wall of the workbench 1, and the guide rail 2 13 is used to guide the movement of the slider 2 12. Both ends of the driving wheel 17 are rotatably connected to the interior of the fixed bracket 14, and the driving wheel 17 is used to drive the crankshaft disk to rotate. The transmission belt 16 is arranged inside the fixed bracket 14, and the transmission belt 16 is used to drive the driving wheels 17 on both sides to rotate.

[0028] Working principle: when the crankshaft disc appearance inspection machine needs to be used, the crankshaft disc is first placed on the storage bracket 8, and then the starting workbench 1 drives the connecting column 25 to rotate, and then the connecting column 25 on the other side is driven to rotate synchronously through the toothed transmission belt 3, and then the four rotating plates 4 are driven to rotate synchronously through the connecting columns 25 on both sides, and then one end of the rotating plate 4 drives the push rod 5 to rotate with the connecting column 25 as the center of the circle, and then drives one end of the fixed connecting rod 6 to move through the push rod 5, and then drives the top movable plate 7 and the storage bracket 8 to move through the other end of the fixed connecting rod 6, and then drives the crankshaft disc to move to the fixed bracket 14 on the inner wall of the workbench 1, and places the two ends of the crankshaft disc on the outer wall of the driving wheel 17. In this process, when the fixed connecting rod 6 moves up and down, it drives the slider 19 to slide on the outer wall of the guide rail 10, thereby guiding up and down. At the same time, when moving left and right, it drives the fixed frame 11 to move through the slider 19, and then drives the slider 2 12 to slide on the outer wall of the guide rail 2 13 through the fixed frame 11, for left and right guidance, thereby realizing the segmented transportation of the crankshaft disc;

[0029] In addition, when the crankshaft disc is conveyed to the outer wall of the drive wheel 17, the starting motor 2 15 drives the transmission belt 16 to run, and then drives the two drive wheels 17 to rotate synchronously through the two ends of the transmission belt 16, thereby driving the crankshaft disc to rotate. At this time, the main perspective camera 20 on the top is used to capture the main features of the crankshaft disc, such as diameter, length, surface defects, etc., and then the crankshaft disc is conveyed to one side of the auxiliary perspective camera 18, and then the auxiliary perspective camera 18 is used to supplement the field of view of the main perspective camera 20 for all-round appearance monitoring. Finally, the crankshaft disc is conveyed to the bottom of the high-precision detail detection camera 23, and the high-precision detail detection camera 23 is used to detect tiny cracks or specific geometric features. During this process, the high-precision detail detection camera 23 can be driven by the electric guide rail 22 for mobile monitoring to improve monitoring accuracy, and finally displayed through the control panel 24.

[0030] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A new type of crankshaft disc appearance inspection machine, comprising a workbench (1), characterized in that: The workbench (1) is fixedly connected to a motor 1 (2) inside, the output end of the motor 1 (2) is fixedly connected to a connecting column (25), the outer wall of the connecting column (25) is fixedly provided with a toothed transmission belt (3), the outer wall of the connecting column (25) is fixedly connected to a rotating plate (4), the interior of the rotating plate (4) is rotatably connected to a push rod (5), the outer wall of the push rod (5) is rotatably connected to a fixed connecting rod (6), the top of the fixed connecting rod (6) is fixedly connected to a moving plate (7), the upper surface of the moving plate (7) is fixedly connected to a storage bracket (8), the outer wall of the fixed connecting rod (6) is fixedly connected to a slider 1 (9), the interior of the slider 1 (9) is slidably connected to a guide rail 1 (10), the outer wall of the guide rail 1 (10) is fixedly connected to a fixed frame (11), the top of the fixed frame (11) is provided with a guide assembly, and the guide assembly is used to guide the movement of the fixed frame (11).

2. A new crankshaft disc appearance inspection machine according to claim 1, characterized in that: The guide assembly includes a second slider (12), the outer wall of which is fixedly connected to the top of the fixed frame (11), and the interior of the second slider (12) is slidably connected to a second guide rail (13), and the outer wall of the second guide rail (13) is fixedly connected to the inner wall of the workbench (1).

3. The novel crankshaft disc appearance inspection machine according to claim 1 is characterized in that: The inner wall of the workbench (1) is fixedly connected to a fixed bracket (14), the outer wall of the fixed bracket (14) is fixedly connected to a second motor (15), the output end of the second motor (15) is provided with a transmission belt (16), the interior of the transmission belt (16) is provided with a driving wheel (17), the top of the workbench (1) is fixedly connected to a first fixed top plate (19), the interior of the first fixed top plate (19) is fixedly connected to a main view camera (20), the top of the workbench (1) is fixedly connected to a second fixed top plate (21), the interior of the second fixed top plate (21) is fixedly connected to an electric guide rail (22), the output end of the electric guide rail (22) is fixedly connected to a high-precision detail detection camera (23), the interior of the workbench (1) is fixedly connected to a control panel (24), and the interior of the workbench (1) is fixedly connected to an auxiliary view camera (18).

4. A new crankshaft disc appearance inspection machine according to claim 3, characterized in that: The outer wall of the high-precision detail detection camera (23) is slidably connected to the interior of the second fixed top plate (21), and the second fixed top plate (21) is used to support the high-precision detail detection camera (23).

5. The novel crankshaft disc appearance inspection machine according to claim 1 is characterized in that: The outer wall of the connecting column (25) is rotatably connected to the inside of the workbench (1), and the connecting column (25) is used to drive the rotating plate (4) to rotate.

6. The novel crankshaft disc appearance inspection machine according to claim 2, characterized in that: The outer wall of the second guide rail (13) is fixedly connected to the inner wall of the workbench (1), and the second guide rail (13) is used to guide the movement of the second slider (12).

7. The novel crankshaft disc appearance inspection machine according to claim 3 is characterized by: Both ends of the driving wheel (17) are rotatably connected to the interior of the fixed bracket (14), and the driving wheel (17) is used to drive the crankshaft disc to rotate.

8. The novel crankshaft disc appearance inspection machine according to claim 3 is characterized by: The transmission belt (16) is arranged inside the fixed bracket (14), and the transmission belt (16) is used to drive the driving wheels (17) on both sides to rotate.