Defect detecting and repairing device during casting of automobile hub
By designing an automated visual inspection and painting system, the problem of low efficiency of traditional manual inspection was solved, and efficient and accurate detection and consistent repair of automobile wheel paint defects were achieved.
Patent Information
- Application Number
- CN202510782280.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-12
- Publication Date
- 2025-09-05
AI Technical Summary
Traditional automobile wheel paint defect detection relies on manual visual inspection, which is inefficient and prone to missed detection and false detection. Repair work consumes a lot of manpower and the results are inconsistent.
A defect detection and repair device consisting of a visual inspection camera and an automatic painting system was designed. The visual inspection camera performs all-round inspection and automatically locates and repairs paint defects.
It realizes automated paint defect detection, improves detection efficiency and accuracy, saves manpower, and achieves consistent repair results.
Smart Images

Figure CN120594524A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of automobile wheel hub production, in particular to a defect detection and repair device during automobile wheel hub casting. Background Art
[0002] Paint defects are common in the casting and subsequent painting processes of automotive wheels. Traditional methods of detecting paint defects rely heavily on manual visual inspection, requiring inspectors to closely observe the painted surface of the wheel for extended periods to determine whether there are defects such as sags, bubbles, or missed surfaces. This method is not only inefficient but also highly influenced by subjective factors such as fatigue and experience, making it prone to missed and false detections. Furthermore, once a defect is discovered, repairs must be performed manually, such as repainting, which consumes significant manpower and time, and makes it difficult to ensure consistent repair results. Summary of the Invention
[0003] (1) Technical problems solved
[0004] In response to the shortcomings of the existing technology, the present invention provides a defect detection and repair device for automobile wheel hub casting, which is capable of automatically detecting automobile wheel hub paint defects and automatically repairing defective wheel hubs with paint, thereby greatly saving manpower and improving work efficiency, and solving the problems raised in the background technology.
[0005] (2) Technical solution
[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a defect detection and repair device for automobile wheel hub casting, comprising a bottom shell and a rotating shell, wherein a first U-shaped plate is fixedly provided in the middle of the upper surface of the bottom shell, a second U-shaped plate is provided on both sides of the upper surface of the bottom shell, a third U-shaped plate is provided on the inner side of the first U-shaped plate and the second U-shaped plate, a rotating rod is fixedly sleeved between the two ends of the plurality of third U-shaped plates, the two ends of the rotating rod are respectively rotatably connected to the inner walls of the corresponding first U-shaped plate and the second U-shaped plate, the rotating shell is fixedly provided on one side of the third U-shaped plate in the middle, and both sides of the rotating shell are A rotating disk is rotatably provided, and a vertical plate is eccentrically provided on one side of the rotating disk. A plurality of visual detection cameras are fixedly provided on one side of the vertical plate from top to bottom. A first transmission mechanism is provided on the inner side of the rotating shell to drive the rotating disks on both sides to rotate. A paint spraying shell is fixedly provided on one side of the two third U-shaped plates on both sides. The paint spraying shell is a hollow structure and a plurality of paint spraying holes are provided on the inner wall. Paint sprayers are fixedly provided at both ends of the front side of the bottom shell, and the paint sprayers are connected to the corresponding paint spraying shells through connecting pipes. A second transmission mechanism is provided inside the bottom shell to drive the plurality of third U-shaped plates to rotate synchronously.
[0007] Preferably, the first transmission mechanism includes a first bevel gear and a second bevel gear, the middle portions of the two rotating disks are fixedly sleeved with a transmission rod, one end of the transmission rod extends to the interior of the rotating shell, the middle end of the transmission rod is rotatably connected to the inner wall of the rotating shell, the two first bevel gears are fixedly sleeved with the ends close to the two transmission rods, a fixed plate is fixedly provided on one side of the interior of the rotating shell, a cross bar is rotatably provided on the end of the fixed plate close to the transmission rod, the second bevel gear is fixedly sleeved on the end of the cross bar close to the transmission rod, the two first bevel gears are meshed with the second bevel gear, the first motor is fixedly provided on the side of the fixed plate away from the cross bar, and the output end of the first motor is fixedly connected to one end of the cross bar.
[0008] Preferably, the second transmission mechanism includes multiple vertical rods, the middle parts of the first U-shaped plate and the two second U-shaped plates are provided with mounting holes, the multiple vertical rods are rotatably sleeved inside the corresponding mounting holes, the middle end of the rotating rod is fixedly sleeved with a third bevel gear, the upper end of the vertical rod is fixedly sleeved with a fourth bevel gear, the third bevel gear is meshed with the corresponding fourth bevel gear, the lower ends of the multiple vertical rods extend to the interior of the bottom shell, and the interior of the bottom shell is provided with a driving mechanism that drives the multiple vertical rods to rotate.
[0009] Preferably, the driving mechanism includes a worm wheel and a worm, multiple worm wheels are fixedly sleeved on the lower ends of corresponding vertical rods, multiple worms are meshed and arranged on the rear sides of corresponding worm wheels, multiple ends of the worms close to each other are fixedly connected, and the outer ends of the worms on both sides are rotatably connected to the inner wall of the bottom shell, a second motor is fixedly provided on one side of the bottom shell, and the output end of the second motor is fixedly connected to one end of the worm.
[0010] Preferably, the plurality of connecting pipes are all hoses.
[0011] Preferably, the plurality of paint sprayers are fixedly connected to the bottom shell via a first support frame.
[0012] Preferably, the second motor is fixedly connected to the bottom shell via a second support frame.
[0013] Preferably, the first motor is powered by a battery.
[0014] Preferably, rubber pads are provided on the lower sides of the plurality of paint spray shells.
[0015] Preferably, the second motor is a reduction motor.
[0016] (3) Beneficial effects
[0017] Compared with the prior art, the present invention provides a defect detection and repair device for automobile wheel hub casting, which has the following beneficial effects:
[0018] 1. This defect detection and repair device for automobile wheel hub casting uses a first motor to drive a crossbar to rotate. The second bevel gear on the crossbar engages with the first bevel gear, thereby causing the transmission rod to drive a rotating disk to rotate. Multiple visual inspection cameras on a vertical plate eccentrically arranged on one side of the rotating disk can perform comprehensive paint defect inspection on automobile wheel hubs. Compared with traditional manual visual inspection, this automated inspection method is not affected by subjective factors such as human fatigue and experience differences, greatly improving inspection efficiency and accuracy and avoiding missed inspections and false detections.
[0019] 2. This defect detection and repair device for automobile wheel hub casting is designed to detect and repair paint defects on the wheel hub by means of a second motor. When a visual inspection camera detects a paint defect on the wheel hub, the second motor drives the worm to rotate, and the worm engages with the worm wheel, causing the vertical rod to rotate. The fourth bevel gear on the vertical rod engages with the third bevel gear on the rotating rod, thereby driving the third U-shaped plate to rotate, so that the paint shell is aligned with the defective part. At the same time, the paint sprayer delivers paint to the paint shell through a connecting pipe and automatically sprays paint to repair the defective wheel hub through multiple paint holes on the inner wall of the paint shell. This automated repair method can greatly save manpower, improve work efficiency, and achieve more consistent repair results. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic structural diagram of a defect detection and repair device for automobile wheel hub casting proposed by the present invention;
[0021] Figure 2 for Figure 1 Schematic diagram of the internal structure;
[0022] Figure 3 for Figure 2 A magnified view of the structure of part A;
[0023] Figure 4 for Figure 2 A magnified view of the structure of part B;
[0024] Figure 5 for Figure 1 A three-dimensional diagram of the connection structure of the rotating disk, vertical plate and visual inspection camera.
[0025] In the figure: 1. bottom shell; 2. first U-shaped plate; 3. rotating shell; 4. rotating disk; 5. vertical plate; 6. visual inspection camera; 7. second U-shaped plate; 8. paint shell; 9. third U-shaped plate; 10. paint sprayer; 11. connecting pipe; 12. second motor; 13. first motor; 14. rotating rod; 15. transmission rod; 16. first bevel gear; 17. fixed plate; 18. cross bar; 19. second bevel gear; 20. worm; 21. third bevel gear; 22. vertical rod; 23. fourth bevel gear; 24. worm gear. DETAILED DESCRIPTION
[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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.
[0027] Example 1
[0028] See also Figure 1-5 A defect detection and repair device for automobile wheel hub casting includes a bottom shell 1 and a rotating shell 3. A first U-shaped plate 2 is fixedly provided in the middle of the upper surface of the bottom shell 1. Second U-shaped plates 7 are provided on both sides of the upper surface of the bottom shell 1. Third U-shaped plates 9 are provided on the inner sides of the first U-shaped plate 2 and the second U-shaped plate 7. A rotating rod 14 is fixedly sleeved between the two ends of the plurality of third U-shaped plates 9. The two ends of the rotating rod 14 are respectively rotatably connected to the inner walls of the corresponding first U-shaped plate 2 and the second U-shaped plate 7. The rotating shell 3 is fixedly provided on one side of the middle third U-shaped plate 9. Rotating disks 4 are rotatably provided on both sides of the rotating shell 3. A vertical plate 5 is eccentrically provided on one side of the rotating disk 4. A plurality of visual inspection cameras 6 are fixedly provided on one side of the vertical plate 5 from top to bottom, and a paint spray shell 8 is fixedly provided on one side of the two third U-shaped plates 9 on both sides. The paint spray shell 8 is a hollow structure and a plurality of paint spray holes are opened on the inner wall. Rubber pads are provided on the lower sides of the plurality of paint spray shells 8 to prevent paint mist from leaking during painting. Paint sprayers 10 are fixedly provided at both ends of the front side of the bottom shell 1. The paint sprayers 10 are connected to the corresponding paint spray shells 8 through connecting pipes 11. The plurality of connecting pipes 11 are all hoses, which are convenient for following the movement of the connecting pipes 11. The plurality of paint sprayers 10 are fixedly connected to the bottom shell 1 through the first support frame, so that the connection between the paint sprayers 10 and the bottom shell 1 is more stable.
[0029] Example 2
[0030] See also Figure 1-5, a first transmission mechanism is provided on the inner side of the rotating shell 3 to drive the rotating disks 4 on both sides to rotate. The first transmission mechanism includes a first bevel gear 16 and a second bevel gear 19. The middle parts of the two rotating disks 4 are fixedly sleeved with a transmission rod 15, one end of the transmission rod 15 extends to the interior of the rotating shell 3, and the middle end of the transmission rod 15 is rotatably connected to the inner wall of the rotating shell 3. The two first bevel gears 16 are fixedly sleeved on one end close to the two transmission rods 15. A fixing plate 17 is fixedly provided on one side of the interior of the rotating shell 3. A cross bar 18 is rotatably provided on the fixing plate 17 near one end of the transmission rod 15. The end of the cross bar 18 near the transmission rod 15 is fixedly sleeved with a second bevel gear 19. The two first bevel gears 16 are meshed with the second bevel gear 19. A first motor 13 is fixedly provided on the side of the fixing plate 17 away from the cross bar 18. The output end of the first motor 13 is fixedly connected to one end of the cross bar 18. The first motor 13 is powered by a battery, which facilitates the first motor 13 to rotate with the rotating shell 3.
[0031] Example 3
[0032] See also Figure 1-5 A second transmission mechanism is provided inside the bottom shell 1 for driving multiple third U-shaped plates 9 to rotate synchronously. The second transmission mechanism includes multiple vertical rods 22. The middle parts of the first U-shaped plate 2 and the two second U-shaped plates 7 are provided with mounting holes. Multiple vertical rods 22 are rotatably sleeved inside the corresponding mounting holes. The middle end of the rotating rod 14 is fixedly sleeved with a third bevel gear 21, and the upper end of the vertical rod 22 is fixedly sleeved with a fourth bevel gear 23. The third bevel gear 21 is meshed with the corresponding fourth bevel gear 23.
[0033] Example 4
[0034] See also Figure 1-5 The lower ends of the multiple vertical rods 22 extend to the interior of the bottom shell 1, and the interior of the bottom shell 1 is provided with a driving mechanism for driving the multiple vertical rods 22 to rotate. The driving mechanism includes a worm gear 24 and a worm 20. The multiple worm gears 24 are fixedly sleeved on the lower ends of the corresponding vertical rods 22, and the multiple worm gears 20 are meshed and arranged on the rear side of the corresponding worm gear 24. The ends close to the multiple worm gears 20 are fixedly connected, and the outer ends of the worm gears 20 on both sides are rotatably connected to the inner wall of the bottom shell 1. A second motor 12 is fixedly provided on one side of the bottom shell 1, and the output end of the second motor 12 is fixedly connected to one end of the worm gear 20. The second motor 12 is fixedly connected to the bottom shell 1 through a second support frame, so that the connection between the second motor 12 and the bottom shell 1 is more stable. The second motor 12 is a reduction motor and can provide a large and stable transmission force.
[0035] In summary, when using the defect detection and repair device for automobile wheel hub casting, the automobile wheel hub to be inspected is placed in a suitable position, and the first motor 13 is started. The output end of the first motor 13 drives the cross bar 18 to rotate, and the second bevel gear 19 at the end of the cross bar 18 rotates accordingly. Since the second bevel gear 19 is meshed and connected with the two first bevel gears 16, the two first bevel gears 16 drive the transmission rod 15 fixedly connected thereto to rotate, thereby rotating the rotating disk 4. The vertical plate 5 eccentrically arranged on the rotating disk 4 rotates with the rotating disk 4, and the multiple visual inspection cameras 6 on the vertical plate 5 can perform comprehensive paint defect inspection on various parts of the automobile wheel hub. The visual inspection camera 6 transmits the captured image information to the control system for analysis and judgment.
[0036] If a paint defect is detected on the wheel hub, the control system sends a command to start the second motor 12. The second motor 12, as a reduction motor, can provide stable and large transmission force. Its output end drives the worm 20 to rotate. Since the ends of the multiple worms 20 are fixedly connected, the multiple worms 20 rotate synchronously. The worm 20 meshes with the worm wheel 24, driving the worm wheel 24 to rotate, thereby rotating the vertical rod 22 fixedly connected to the worm wheel 24, and the fourth bevel gear 23 at the upper end of the vertical rod 22 meshes with the third bevel gear 21 at the middle end of the rotating rod 14, so that the rotating rod 14 rotates, thereby driving the third U-shaped plate 9 to rotate, so that the paint shells 8 on both sides are rotated to the appropriate position, aligning with the defective parts of the wheel hub.
[0037] At this time, the paint sprayer 10 is started, and the paint is transported into the paint spray shell 8 through the connecting pipe 11. The paint is sprayed out from the multiple paint spray holes on the inner wall of the paint spray shell 8 to repair the defective parts of the wheel hub. The connecting pipe 11 is a hose that can flexibly follow the rotation of the third U-shaped plate 9 without affecting the progress of the painting work. The rubber pads provided on the lower side of the multiple paint spray shells 8 can effectively prevent the leakage of paint mist during painting, ensuring a clean working environment.
[0038] During the entire inspection and repair process, various components work together to achieve automated inspection and repair of automobile wheel paint defects, greatly saving manpower and improving work efficiency as well as the accuracy and consistency of inspection and repair.
[0039] It should be noted that the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article, or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.
[0040] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.
Claims
1. A defect detection and repair device for automobile wheel hub casting, comprising a bottom shell (1) and a rotating shell (3), characterized in that: A first U-shaped plate (2) is fixedly provided in the middle of the upper surface of the bottom shell (1), and second U-shaped plates (7) are provided on both sides of the upper surface of the bottom shell (1). A third U-shaped plate (9) is provided on the inner sides of the first U-shaped plate (2) and the second U-shaped plate (7). A rotating rod (14) is fixedly sleeved between the two ends of the plurality of third U-shaped plates (9), and the two ends of the rotating rod (14) are respectively rotatably connected to the inner walls of the corresponding first U-shaped plate (2) and the second U-shaped plate (7). The rotating shell (3) is fixedly provided on one side of the middle third U-shaped plate (9), and a rotating disk (4) is rotatably provided on both sides of the rotating shell (3). One side of the rotating disk (4) is eccentrically provided with a rotating disk. A vertical plate (5), one side of the vertical plate (5) is fixedly provided with a plurality of visual detection cameras (6) in sequence from top to bottom, the inner side of the rotating shell (3) is provided with a first transmission mechanism for driving the rotating disks (4) on both sides to rotate, one side of the two third U-shaped plates (9) on both sides is fixedly provided with a paint spraying shell (8), the paint spraying shell (8) is a hollow structure and a plurality of paint spraying holes are opened on the inner wall, both ends of the front side of the bottom shell (1) are fixedly provided with a paint spraying machine (10), the paint spraying machine (10) is connected to the corresponding paint spraying shell (8) through a connecting pipe (11), and the interior of the bottom shell (1) is provided with a second transmission mechanism for driving the plurality of third U-shaped plates (9) to rotate synchronously.
2. The defect detection and repair device for automobile wheel hub casting according to claim 1, characterized in that: The first transmission mechanism comprises a first bevel gear (16) and a second bevel gear (19); a transmission rod (15) is fixedly sleeved at the middle of the two rotating disks (4); one end of the transmission rod (15) extends into the interior of the rotating shell (3); the middle end of the transmission rod (15) is rotatably connected to the inner wall of the rotating shell (3); the two first bevel gears (16) are fixedly sleeved on the ends of the two transmission rods (15) close to each other; a fixed plate (17) is fixedly provided on one side of the interior of the rotating shell (3); a cross bar (18) is rotatably provided on the end of the fixed plate (17) close to the transmission rod (15); the second bevel gear (19) is fixedly sleeved on the end of the cross bar (18) close to the transmission rod (15); the two first bevel gears (16) are meshed with the second bevel gear (19); a first motor (13) is fixedly provided on the side of the fixed plate (17) away from the cross bar (18); and the output end of the first motor (13) is fixedly connected to one end of the cross bar (18).
3. The defect detection and repair device for automobile wheel hub casting according to claim 1, characterized in that: The second transmission mechanism comprises a plurality of vertical rods (22), the middle parts of the first U-shaped plate (2) and the two second U-shaped plates (7) are provided with mounting holes, the plurality of vertical rods (22) are rotatably sleeved inside the corresponding mounting holes, the middle end of the rotating rod (14) is fixedly sleeved with a third bevel gear (21), the upper end of the vertical rod (22) is fixedly sleeved with a fourth bevel gear (23), the third bevel gear (21) is meshedly connected with the corresponding fourth bevel gear (23), the lower ends of the plurality of vertical rods (22) extend to the inside of the bottom shell (1), and the inside of the bottom shell (1) is provided with a driving mechanism for driving the plurality of vertical rods (22) to rotate.
4. The defect detection and repair device for automobile wheel hub casting according to claim 3, characterized in that: The driving mechanism comprises a worm wheel (24) and a worm (20), wherein a plurality of the worm wheels (24) are fixedly sleeved on the lower ends of the corresponding vertical rods (22), and a plurality of the worms (20) are meshedly arranged on the rear sides of the corresponding worm wheels (24). The ends of the plurality of worms (20) close to each other are fixedly connected, and the outer ends of the worms (20) on both sides are rotatably connected to the inner wall of the bottom shell (1). A second motor (12) is fixedly arranged on one side of the bottom shell (1), and the output end of the second motor (12) is fixedly connected to one end of the worm (20).
5. The defect detection and repair device for automobile wheel hub casting according to claim 1, characterized in that: The plurality of connecting pipes (11) are all hoses.
6. The defect detection and repair device for automobile wheel hub casting according to claim 1, characterized in that: The plurality of paint sprayers (10) are all fixedly connected to the bottom shell (1) via a first support frame.
7. The defect detection and repair device for automobile wheel hub casting according to claim 4, characterized in that: The second motor (12) is fixedly connected to the bottom shell (1) via a second support frame.
8. The defect detection and repair device for automobile wheel hub casting according to claim 2, characterized in that: The first motor (13) is powered by a battery.
9. The defect detection and repair device for automobile wheel hub casting according to claim 1, characterized in that: The lower sides of the plurality of paint spray shells (8) are all provided with rubber pads.
10. The defect detection and repair device for automobile wheel hub casting according to claim 4, characterized in that: The second motor (12) is a reduction motor.