Carbon fiber part surface defect detection device

Abstract

The invention discloses a carbon fiber part surface defect detection device, and particularly relates to the technical field of part detection.The carbon fiber part surface defect detection device comprises a detection chamber, a rotating assembly is arranged on the right side of the bottom wall of the inner surface of the detection chamber, a fixing assembly is arranged on the upper portion of the rotating assembly, and a pushing assembly is rotationally connected to the left side of the bottom wall of the inner surface of the detection chamber; a detection assembly is arranged on the top wall of the inner surface of the detection chamber. Meanwhile, the side light sources operate through cooperation of a fourth rotating roller and a gear, in the process that the scanning detector scans the steering wheel framework in the radial direction, the irradiation angles of the two side light sources are dynamically adjusted, different light rays irradiate the surface of the steering wheel framework, the stereoscopic impression of the defects can be enhanced, and the defect detection accuracy is improved. According to the scanning detector, the judgment precision of the scanning detector on defect types such as scratch depth and pit volume is improved, the same defect presents different characteristics under different illumination conditions through cooperative light supplement of the diffuse reflection plate, the defect types are distinguished more accurately, such as normal lines and real scratches, and the false detection rate is reduced.

Description

Technical Field

[0001] This invention relates to the field of parts inspection technology, and in particular to a device for detecting surface defects in carbon fiber parts. Background Technology

[0002] Carbon fiber parts are components manufactured using carbon fiber as the core material, possessing a series of outstanding performance advantages. In terms of characteristics, their lightweight properties are particularly significant. Carbon fiber itself has an extremely low density, making carbon fiber parts significantly lighter than traditional metal parts. This advantage is crucial in many fields, such as automotive manufacturing, where its lightweight and high-strength properties perfectly align with the industry's trend towards lightweighting. The low density of carbon fiber also allows for a substantial reduction in the weight of the steering wheel frame. Furthermore, carbon fiber parts exhibit excellent wear resistance, maintaining stable performance even under prolonged and frequent use, ensuring the continued stable operation of equipment. Their impact resistance is also outstanding, effectively resisting external impacts and collisions to a certain extent, ensuring the integrity of the parts in complex environments.

[0003] The detection of surface defects in carbon fiber parts is crucial. Surface defects not only affect the appearance of the parts, but also pose potential threats to their mechanical properties, durability and safety, and may lead to problems such as reduced strength and structural failure during use.

[0004] Chinese Patent Publication No. CN112378853A discloses a detection device, method, and related apparatus for surface defects in mechanical parts. The detection device uses machine vision to identify and detect surface defects in the parts under test, eliminating reliance on human physiological and psychological states. This improves the accuracy of surface defect identification and detection, avoiding missed or false detections, low efficiency, and high labor costs. Furthermore, the device includes a first-type part positioning module and a second-type part positioning module, enabling the detection of surface defects in different types of parts, thus enhancing its applicability.

[0005] However, during the operation of the above-mentioned device, it is impossible to achieve the effect of simultaneously scanning and detecting parts, providing supplementary lighting along the scanning path, and dynamically adjusting the supplementary lighting angle. Summary of the Invention

[0006] The main objective of this invention is to provide a surface defect detection device for carbon fiber parts, which can effectively solve the problem of not being able to simultaneously scan and inspect parts while providing supplementary lighting along the scanning path and dynamically adjusting the lighting angle.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0008] A surface defect detection device for carbon fiber parts includes a detection chamber. A rotating component is provided on the right side of the bottom wall of the inner surface of the detection chamber, a fixed component is provided on the upper part of the rotating component, a pushing component is rotatably connected to the left side of the bottom wall of the inner surface of the detection chamber, and a detection component is provided on the top wall of the inner surface of the detection chamber.

[0009] Preferably, a viewing window is provided on the front side wall of the inner surface of the testing chamber, a conveying port is provided on the right side wall of the inner surface of the testing chamber, and a friction plate is fixedly connected to the bottom wall of the inner surface of the testing chamber.

[0010] Preferably, a motor is fixedly connected to the bottom wall of the inner surface of the detection chamber, a one-way rotating shaft is rotatably connected to the upper part of the outer surface of the output end of the motor, a circular plate is fixedly connected to the outer surface of the one-way rotating shaft, and a lever is fixedly connected to one side of the outer surface of the circular plate.

[0011] Preferably, a circular plate two is rotatably connected to the bottom wall of the inner surface of the detection chamber, nine guide rollers are arranged in a ring at the lower end of the circular plate two, and a T-shaped track is fixedly connected to the middle of the upper end of the circular plate two.

[0012] Preferably, the fixing component includes a boss, a rectangular groove is formed in the middle of the lower end of the boss, the inner surface of the rectangular groove is slidably connected to the right side of the outer surface of the T-shaped track, a diffuse reflector is fixedly connected to the upper end of the boss, a fixing rod is fixedly connected to the left side of the upper end of the boss, a rotating roller is rotatably connected to the upper end of the fixing rod, a friction wheel is fixedly connected to the left side of the outer surface of the rotating roller, and an L-shaped rod is fixedly connected to the lower side of the right end of the rotating roller.

[0013] Preferably, a fixing plate is fixedly connected to the upper end of the second circular plate, and the fixing plate and the protrusion are jointly fixedly connected to two springs.

[0014] Preferably, the pushing component includes a circular roller that is drivenly connected to the outer surface of the motor output end. A circular plate is provided on the outer surface of the circular roller. A limiting groove is provided on the upper end of the circular plate. A push rod is fixedly connected to the right end of the limiting groove. A vertical plate is fixedly connected to the right end of the push rod.

[0015] Preferably, a hydraulic cylinder is fixedly connected to the rear side wall of the inner surface of the detection chamber, a push plate is fixedly connected to the output end of the hydraulic cylinder, a scanning detector is fixedly connected to the lower middle part of the push plate, and two sliding grooves are symmetrically opened at the upper end of the push plate, with guide plates slidably connected to the inner surfaces of the two sliding grooves.

[0016] Preferably, the upper end of the push plate is symmetrically rotatably connected to a second roller, the upper part of the outer surface of each of the two second rollers is drivenly connected to a fourth roller, the outer surface of each of the two fourth rollers is fixedly connected to a gear, the outer surface of each of the two gears is respectively meshed with a rack, the lower part of the outer surface of each of the two second rollers is drivenly connected to a third roller, and the outer surface of each of the two third rollers is fixedly connected to a side light source.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. This invention achieves multi-angle adjustment of the steering wheel frame by using a rotating component in conjunction with a fixing component. During the inspection process, the supplementary lighting angle can be dynamically adjusted while the detection component provides supplementary lighting to highlight surface defects. At the same time, the push component, in conjunction with a portion of the fixing component, enables automatic loading and unloading, further improving inspection efficiency.

[0019] 2. This invention utilizes the coordinated operation of circular plate one and the paddle block, as well as the combination of the stop roller and circular plate two, along with the friction wheel and friction plate, to achieve multi-angle rotation adjustment of the front and back surfaces of the steering wheel frame. This avoids blind spots in single-sided detection, achieving full circumferential coverage detection and preventing the omission of edge or arc surface defects caused by fixed-angle detection. Simultaneously, the side light source operates through the coordination of rotating roller four and gears. During the radial scanning of the steering wheel frame by the scanning detector, the illumination angles of the two side light sources are dynamically adjusted, allowing different light to illuminate the surface of the steering wheel frame. This creates unique shadows on defects such as pits and protrusions, enhancing the three-dimensionality of the defects and improving the accuracy of the scanning detector in judging defect types such as scratch depth and pit volume. Furthermore, the use of a diffuse reflection plate for supplementary lighting allows the same defect to exhibit different characteristics under different lighting conditions, more accurately distinguishing defect types, such as differentiating normal textures from actual scratches, and reducing the false detection rate. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the overall internal structure of the present invention;

[0022] Figure 3 This is a partial structural diagram of the testing chamber of the present invention;

[0023] Figure 4 This is a schematic diagram of the rotating component structure of the present invention;

[0024] Figure 5 This is a schematic diagram of the operating structure of the rotating component of the present invention;

[0025] Figure 6 This is a schematic diagram of the fixed component structure of the present invention;

[0026] Figure 7 This is a partial structural diagram of the fixing component of the present invention;

[0027] Figure 8 This is a schematic diagram of the pushing component structure of the present invention;

[0028] Figure 9 This is a schematic diagram of the detection component structure of the present invention;

[0029] Figure 10 This is a schematic diagram of the operating structure of the detection component of the present invention.

[0030] In the diagram: 1. Testing chamber; 11. Viewing window; 12. Conveying port; 13. Friction plate; 2. Rotating assembly; 21. Motor; 22. Circular plate one; 221. Pulley; 23. One-way rotating shaft one; 24. Circular plate two; 241. Baffle roller; 25. T-shaped track; 3. Fixing assembly; 31. Boss; 311. Rectangular groove; 32. Diffuse reflector; 33. Fixing rod; 34. Rotating roller one; 341. L-shaped rod; 3 5. Friction wheel; 36. Fixed plate; 37. Spring; 4. Pushing assembly; 41. Circular roller; 42. Circular plate three; 43. Limiting groove; 44. Push rod; 45. Vertical plate; 5. Detection assembly; 51. Hydraulic cylinder; 52. Push plate; 521. Slide groove; 53. Scanning detector; 54. Rack; 55. Rotating roller two; 56. Rotating roller three; 57. Side light source; 58. Guide plate; 59. Rotating roller four; 591. Gear. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0032] Example 1, as Figure 1 and Figure 2 As shown, a carbon fiber part surface defect detection device includes a detection chamber 1, a rotating component 2 is provided on the right side of the bottom wall of the inner surface of the detection chamber 1, a fixing component 3 is provided on the upper part of the rotating component 2, a pushing component 4 is rotatably connected to the left side of the bottom wall of the inner surface of the detection chamber 1, and a detection component 5 is provided on the top wall of the inner surface of the detection chamber 1.

[0033] When inspecting the surface defects of a steering wheel frame made of carbon fiber, the steering wheel frame to be inspected is fixed by the fixing component 3. Then, the steering wheel frame is rotated 40° intermittently by the rotating component 2. After each rotation, the surface of the steering wheel frame is scanned radially by the detection component 5. While scanning the surface of the steering wheel frame, the detection component 5 can also dynamically adjust the angle of the auxiliary light source to highlight the defects on the carbon fiber surface. During the rotation of the steering wheel frame by the fixing component 3 and the rotating component 2, it can also cooperate with some structures in the detection chamber 1 to achieve scanning and inspection of the front and back of the steering wheel frame, avoiding any omissions in the inspection.

[0034] After scanning and detecting the front and back sides of the steering wheel frame at different angles, the steering wheel frame that has been detected is pushed out by the cooperation of the rotating component 2 and the pushing component 4, and the steering wheel frame to be inspected is moved into the testing chamber 1.

[0035] In the operation of this embodiment, the steering wheel frame can be adjusted at multiple angles by rotating component 2 in conjunction with fixing component 3. During the inspection process, the angle of supplementary light can be dynamically adjusted by supplementary light from detection component 5 to highlight surface defects. At the same time, automatic loading and unloading can be achieved by using pushing component 4 in conjunction with part of the structure in fixing component 3, further improving inspection efficiency.

[0036] Example 2: Based on Example 1, this example aims to achieve the effect of adjusting the angle of the parts from multiple angles and in all directions during inspection, and also to dynamically adjust the supplementary light angle following the scanning movement path.

[0037] See Figure 3 A viewing window 11 is provided on the front side wall of the inner surface of the testing chamber 1, a conveying port 12 is provided on the right side wall of the inner surface of the testing chamber 1, and a friction plate 13 is fixedly connected to the bottom wall of the inner surface of the testing chamber 1.

[0038] When inspecting the surface of a steering wheel frame part made of carbon fiber, the inspection process can be manually monitored through the viewing window 11. After one inspection is completed, the inspected steering wheel frame can be sent out through the conveying port 12, while the cleaned steering wheel frame to be inspected can be sent in.

[0039] See Figure 4 and Figure 5 A motor 21 is fixedly connected to the bottom wall of the inner surface of the testing chamber 1. A one-way rotating shaft 23 is rotatably connected to the upper part of the outer surface of the output end of the motor 21. A circular plate 22 is fixedly connected to the outer surface of the one-way rotating shaft 23. A lever 221 is fixedly connected to one side of the outer surface of the circular plate 22. A circular plate 24 is rotatably connected to the bottom wall of the inner surface of the testing chamber 1. Nine guide rollers 241 are arranged in a ring at the lower end of the circular plate 24. A T-shaped track 25 is fixedly connected to the middle of the upper end of the circular plate 24.

[0040] The aforementioned one-way rotating shaft 23 is a conventional design in the prior art. The one-way rotating shaft 23 cooperates with the output end of the motor 21. When the output end of the motor 21 rotates forward, it drives the one-way rotating shaft 23 and the circular plate 22 to rotate simultaneously. When the output end of the motor 21 rotates in reverse, the one-way rotating shaft 23 does not rotate, and the circular plate 22 does not rotate either.

[0041] As the circular plate 22 rotates, it will cause the dial block 221 to rotate around the axis of the circular plate 22.

[0042] Further reference Figure 5 When the push block 221 rotates between two adjacent stop rollers 241, the push block 221 will push the stop rollers 241, which will cause the stop rollers 241 to drive the circular plate 24 to rotate 40°. During the rotation of the circular plate 24, the T-shaped track 25 will rotate at the same time.

[0043] See Figure 6 and Figure 7 The fixing component 3 includes a boss 31. A rectangular groove 311 is provided in the middle of the lower end of the boss 31. The inner surface of the rectangular groove 311 is slidably connected to the right side of the outer surface of the T-shaped track 25. A diffuse reflector plate 32 is fixedly connected to the upper end of the boss 31. A fixing rod 33 is fixedly connected to the left side of the upper end of the boss 31. A rotating roller 34 is rotatably connected to the upper end of the fixing rod 33. A friction wheel 35 is fixedly connected to the left side of the outer surface of the rotating roller 34. An L-shaped rod 341 is fixedly connected to the lower right side of the rotating roller 34.

[0044] The aforementioned diffuse reflector 32 is a conventional design in the prior art. With the cooperation of the diffuse reflector 32, the dark areas and dead corners of the curved surface of the steering wheel frame can be filled, and the light scattered by the main light source can be reflected a second time to the dark area, eliminating the detection blind spot. At the same time, the diffuse reflected light forms a soft background illumination, reducing the risk of local overexposure and making the edges of defects such as scratches and dents clearer.

[0045] The right end of the aforementioned roller 34 is equipped with a fixing device commonly used in the prior art to hold the steering wheel frame. At the same time, it works in conjunction with the L-shaped rod 341 so that the vertical part of the L-shaped rod 341 assists in supporting the center of the steering wheel frame. Neither the part of the roller 34 that fixes the steering wheel frame nor the part of the L-shaped rod 341 that provides auxiliary support will cause damage to the steering wheel frame. After the test is completed, a secondary test is conducted to check the obstructed parts of the roller 34 and the L-shaped rod 341.

[0046] Furthermore, after the steering wheel frame is fixed by the rotating roller 34 and the L-shaped rod 341, the motor 21, in conjunction with the circular plate 22 and the lever 221, causes the circular plate 24 to rotate intermittently by 40°. During the rotation of the T-shaped track 25 driven by the circular plate 24, the boss 31 and the T-shaped track 25 rotate simultaneously by cooperating with the rectangular groove 311.

[0047] During the rotation of the boss 31, the animation reflector 32, the fixed rod 33, the rotating roller 34, and the steering wheel frame will rotate 40° simultaneously. During the first 40° rotation, the outer surface of the friction wheel 35 is in close contact with the upper end of the friction plate 13, so that the friction wheel 35 drives the rotating roller 34, the L-shaped rod 341, and the steering wheel frame to rotate 180° around the axis of the friction wheel 35.

[0048] Next, a scanning test is performed. After one scanning test is completed, the steering wheel frame is intermittently rotated 40° around the axis of the second circular plate 24 by the operation of the first circular plate 22, the paddle block 221, the stop roller 241, and the second circular plate 24. After rotating 40°, the rotation stops and a scanning test is performed.

[0049] This allows for multi-angle scanning and detection of the steering wheel frame from both the front and back, avoiding missed detections.

[0050] See Figure 9 and Figure 10 A hydraulic cylinder 51 is fixedly connected to the rear wall of the inner surface of the detection chamber 1. A push plate 52 is fixedly connected to the output end of the hydraulic cylinder 51. A scanning detector 53 is fixedly connected to the middle of the lower end of the push plate 52. Two slide grooves 521 are symmetrically opened on the upper end of the push plate 52. Guide plates 58 are slidably connected to the inner surface of the two slide grooves 521. Two rotating rollers 55 are symmetrically rotatably connected to the upper end of the push plate 52. Two rotating rollers 59 are 59 connected to the upper surface of the outer surface of the two rotating rollers 55. Gears 591 are fixedly connected to the outer surface of the two rotating rollers 591. Racks 54 are meshed on the outer surface of the two gears 591 respectively. Three rotating rollers 56 are 56 connected to the lower surface of the outer surface of the two rotating rollers 55. Side light sources 57 are fixedly connected to the outer surface of the two rotating rollers 56.

[0051] The aforementioned scanning inspection instrument 53 is a commonly used instrument in the prior art for detecting surface defects of carbon fiber parts. After scanning by the scanning inspection instrument 53, the location and type of defects can be automatically identified.

[0052] The two side light sources 57 mentioned above are conventional designs in the prior art. The two side light sources 57 are divergent light sources, with the side light source 57 on the right side shining obliquely downward and the side light source 57 on the left side shining obliquely upward. By having the two side light sources 57 work together to supplement the light from both sides, the defects on the surface of the steering wheel frame are exposed more thoroughly.

[0053] The aforementioned rotating roller 4 59 is connected to the rotating roller 2 55 on the same side via gear transmission;

[0054] The aforementioned roller 2 55 and roller 3 56 on the same side are connected by a bevel gear set for transmission. The radius of the bevel gear fixed on the outer surface of roller 2 55 is smaller than the radius of the bevel gear fixed on the outer surface of roller 3 56, that is, the rotation speed of roller 3 56 is less than the rotation speed of roller 2 55.

[0055] After the rotating roller 34 and L-shaped rod 341 fix the steering wheel frame, the scanning detector 53 and hydraulic cylinder 51 are activated, and two side light sources 57 are activated at the same time. Then the output end of the hydraulic cylinder 51 pushes the push plate 52 forward.

[0056] During the movement of the push plate 52, the scanning detector 53 is driven to move radially forward along the steering wheel frame, while the two slide grooves 521 slide forward along the lower end of the two guide plates 58.

[0057] As the push plate 52 moves forward along the two guide plates 58, the two gears 591 mesh with the appropriate racks 54 respectively, and the two gears 591 rotate when the push plate 52 moves forward, thereby driving the rotating rollers 59 to rotate.

[0058] During the rotation of roller 4 59, roller 2 55 is driven to rotate, which in turn causes roller 3 56 to rotate.

[0059] For further details, please refer to [link / reference]. Figure 10 During the rotation of the two rotating rollers 56, the corresponding side light sources 57 will rotate, causing both side light sources 57 to rotate counterclockwise. That is, during the meshing of the gear 591 and the rack 54 on the same side, the side light source 57 on the right side will rotate from downward to upward illumination, and the side light source 57 on the left side will rotate from upward to downward illumination. This achieves dynamic adjustment of the angles of the two side light sources 57 when the radial moving scanning detector 53 scans and detects the steering wheel frame, thereby creating a unique shadow effect on the defect edge when irradiated from different angles, thus improving the defect detection rate.

[0060] When gear 591 moves to the front end of rack 54, the scanning detector 53 finishes scanning the steering wheel frame. Then, the output end of hydraulic cylinder 51 drives push plate 52 and scanning detector 53 to move backward. At this time, scanning detector 53 stops running. Similarly, through the cooperation of rack 54 on the same side, during the reset process of push plate 52, both side light sources 57 are restored to the initial illumination angle.

[0061] After a scan is completed, the circular plate 24, in conjunction with the T-shaped track 25 and the rectangular groove 311, drives the boss 31 and the steering wheel frame to rotate intermittently by 40° during the rotation of the circular plate 24. After the rotation, it is used in conjunction with the scanning and inspection instrument 53 to scan and inspect surface defects.

[0062] See Figure 8 The pushing component 4 includes a circular roller 41 that is connected to the outer surface of the output end of the motor 21. A circular plate 3 42 is provided on the outer surface of the circular roller 41. A limiting groove 43 is provided on the upper end of the circular plate 3 42. A push rod 44 is fixedly connected to the right end of the limiting groove 43. A vertical plate 45 is fixedly connected to the right end of the push rod 44.

[0063] The upper part of the outer surface of the aforementioned roller 41 is rotatably connected to a one-way rotating shaft two, and a circular plate three 42 is fixedly connected to the outer surface of the one-way rotating shaft two. When the output end of the motor 21 rotates forward, the roller 41 rotates, while the two one-way rotating shafts two and the circular plate three 42 do not rotate. When the output end of the motor 21 drives the roller 41 to rotate in reverse, the circular plate one 22 no longer rotates, while the two circular plate three 42 and the one-way rotating shaft two rotate.

[0064] A circular block is fixedly connected to one side of the upper end of the circular plate 42, and the outer surface of the circular block is slidably connected to the inner surface of the limiting groove 43.

[0065] During the reverse rotation of the output end of motor 21, circular plate 3 42 rotates, which in turn drives the circular block to rotate around the axis of circular plate 3 42. Through the cooperation with the limiting groove 43, the limiting groove 43 moves to the right. During the movement of the limiting groove 43 to the right, the limiting groove 43, in cooperation with the vertical plate 45, pushes the fixing rod 33 to the right, which in turn drives the protrusion 31, the diffuse reflection plate 32, and the steering wheel frame to move to the right at the same time, and the steering wheel frame that has finished testing is transported out through the conveying port 12.

[0066] See Figure 7 A fixing plate 36 is fixedly connected to the upper end of the circular plate 24. The fixing plate 36 and the protrusion 31 are together fixedly connected to two springs 37.

[0067] Then, as the convex seat 31 moves to the right, the T-shaped track 25 slides along the inner surface of the rectangular groove 311, and at the same time, the two springs 37 are stretched. After the steering wheel frame after testing is removed, the new steering wheel frame to be tested is fixed by the rotating roller 34 in conjunction with the L-shaped rod 341. Then, the circular roller 41 continues to drive the circular plate 42 to rotate through the one-way rotating shaft 2, thereby causing the limiting groove 43, the push rod 44 and the vertical plate 45 to move to the left.

[0068] Similarly, after the new steering wheel frame is fixed by the rotating roller 34 and the vertical plate 45 releases the push on the fixing rod 33, the two stretched springs 37 cooperate with the fixing plate 36 to pull the boss 31 to the left, so that the boss 31 moves to the right along the T-shaped track 25 to the middle of the circular plate 24.

[0069] In this embodiment, after the rotating roller 34 is used to fix the steering wheel frame, the steering wheel frame and the boss 31 are pulled together to the middle of the circular plate 24 by two springs 37 and the fixing plate 36. Then, through the cooperation of the circular plate 22, the toggle block 221 and the stop roller 241, the circular plate 24, the T-shaped track 25, the boss 31 and the steering wheel frame are rotated 40° at the same time. During this rotation, the outer surface of the friction wheel 35 is in close contact with the upper end of the friction plate 13. The steering wheel frame is flipped during the rotation. Then, through the push plate 52, the scanning detector 53 and the two side light sources 57 are used to move forward radially along the steering wheel frame, and the illumination angle of the side light sources 57 is dynamically adjusted. At the same time, the steering wheel frame is scanned and inspected. After this scanning inspection is completed, through the push plate 52, the scanning detector 53, the rack 54 and the gear 591 and other structures, the two side light sources 57 are reset during the reset process of the push plate 52 and the scanning detector 53.

[0070] Next, the circular plate 22, in conjunction with the lever 221 and the stop roller 241, causes the circular plate 24 to drive the T-shaped track 25, the boss 31, and the steering wheel frame to continue rotating 40° around the axis of the circular plate 24. During this rotation, the outer surface of the friction wheel 35 is no longer in close contact with the upper end of the friction plate 13, that is, the steering wheel frame no longer flips over. Only the placement angle of the steering wheel frame is adjusted, and then the scanning and detection are repeated.

[0071] After one scan is completed, the steering wheel frame continues to rotate and the scan is repeated until all angles on both sides of the steering wheel frame have been scanned and detected. Then, the output of motor 21 is reversed, and the steering wheel frame that has been detected is pushed out through the circular plate 3 42 in conjunction with the limiting groove 43, the push rod 44 and the vertical plate 45.

[0072] Therefore, this solution utilizes the coordinated operation of circular plate 22 and paddle block 221, as well as the combination of roller 241 and circular plate 24, along with friction wheel 35 and friction plate 13, to achieve multi-angle rotation adjustment of the steering wheel frame's front and back surfaces. This avoids blind spots in single-sided detection, achieving full circumferential coverage detection and preventing the omission of edge or arc surface defects caused by fixed-angle detection. Simultaneously, the side light source 57, through the coordinated operation of roller 4 59 and gear 591, dynamically adjusts the illumination angles of the two side light sources 57 during the radial scanning of the steering wheel frame by the scanning detector 53. This allows different light to illuminate the surface of the steering wheel frame, creating unique shadows on defects such as pits and protrusions, enhancing the three-dimensionality of the defects and improving the accuracy of the scanning detector 53 in judging defect types such as scratch depth and pit volume. Furthermore, the use of diffuse reflection plate 32 for supplementary lighting allows the same defect to exhibit different characteristics under different lighting conditions, more accurately distinguishing defect types, such as differentiating normal textures from actual scratches, and reducing the false detection rate.

[0073] It should be noted that the specific installation method, circuit connection method, and control method of the motor 21 and hydraulic cylinder 51 used in this invention are all conventional designs, and will not be described in detail here.

[0074] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A surface defect detection device for carbon fiber parts, comprising a detection chamber (1), characterized in that: A rotating component (2) is provided on the right side of the bottom wall of the inner surface of the detection chamber (1), a fixing component (3) is provided on the upper part of the rotating component (2), a pushing component (4) is rotatably connected to the left side of the bottom wall of the inner surface of the detection chamber (1), and a detection component (5) is provided on the top wall of the inner surface of the detection chamber (1).

2. The carbon fiber parts surface defect detection device according to claim 1, characterized in that: The front wall of the inner surface of the testing chamber (1) is provided with a viewing window (11), the right wall of the inner surface of the testing chamber (1) is provided with a conveying port (12), and a friction plate (13) is fixedly connected to the bottom wall of the inner surface of the testing chamber (1).

3. The carbon fiber parts surface defect detection device according to claim 1, characterized in that: A motor (21) is fixedly connected to the bottom wall of the inner surface of the detection chamber (1). A one-way rotating shaft (23) is rotatably connected to the upper part of the outer surface of the output end of the motor (21). A circular plate (22) is fixedly connected to the outer surface of the one-way rotating shaft (23). A lever (221) is fixedly connected to one side of the outer surface of the circular plate (22).

4. The carbon fiber parts surface defect detection device according to claim 1, characterized in that: The bottom wall of the inner surface of the detection chamber (1) is rotatably connected to a circular plate (24). Nine rollers (241) are arranged in a ring at the lower end of the circular plate (24). A T-shaped track (25) is fixedly connected to the middle of the upper end of the circular plate (24).

5. The carbon fiber parts surface defect detection device according to claim 4, characterized in that: The fixing component (3) includes a boss (31), a rectangular groove (311) is provided in the middle of the lower end of the boss (31), the inner surface of the rectangular groove (311) is slidably connected to the right side of the outer surface of the T-shaped track (25), a diffuse reflection plate (32) is fixedly connected to the upper end of the boss (31), a fixing rod (33) is fixedly connected to the left side of the upper end of the boss (31), a rotating roller (34) is rotatably connected to the upper end of the fixing rod (33), a friction wheel (35) is fixedly connected to the left side of the outer surface of the rotating roller (34), and an L-shaped rod (341) is fixedly connected to the lower right side of the rotating roller (34).

6. The carbon fiber parts surface defect detection device according to claim 5, characterized in that: A fixing plate (36) is fixedly connected to the upper end of the circular plate (24), and the fixing plate (36) and the protrusion (31) are together fixedly connected to two springs (37).

7. The carbon fiber parts surface defect detection device according to claim 1, characterized in that: The pushing assembly (4) includes a circular roller (41) that is connected to the outer surface of the output end of the motor (21). A circular plate (42) is provided on the outer surface of the circular roller (41). A limiting groove (43) is provided on the upper end of the circular plate (42). A push rod (44) is fixedly connected to the right end of the limiting groove (43). A vertical plate (45) is fixedly connected to the right end of the push rod (44).

8. The carbon fiber parts surface defect detection device according to claim 1, characterized in that: A hydraulic cylinder (51) is fixedly connected to the rear side wall of the inner surface of the detection chamber (1). A push plate (52) is fixedly connected to the output end of the hydraulic cylinder (51). A scanning detector (53) is fixedly connected to the middle of the lower end of the push plate (52). Two sliding grooves (521) are symmetrically opened on the upper end of the push plate (52). Guide plates (58) are slidably connected to the inner surfaces of the two sliding grooves (521).

9. The carbon fiber parts surface defect detection device according to claim 8, characterized in that: The upper end of the push plate (52) is symmetrically connected to the rotating rollers two (55). The upper part of the outer surface of the two rotating rollers two (55) is connected to the rotating rollers four (59). The outer surface of the two rotating rollers four (59) is fixedly connected to the gears (591). The outer surface of the two gears (591) is respectively meshed with the racks (54). The lower part of the outer surface of the two rotating rollers two (55) is connected to the rotating rollers three (56). The outer surface of the two rotating rollers three (56) is fixedly connected to the side light source (57).

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