Ultrasonic defect automatic identification device and working method thereof
By designing an automatic ultrasonic defect identification device, we have achieved full-coverage scanning of the workpiece surface, automatic application of coupling agent, and noise-reducing clamping. This solves the problem of incomplete detection in existing devices, improves detection efficiency and signal-to-noise ratio, and simplifies the operation process.
Patent Information
- Application Number
- CN202511678476.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-17
- Publication Date
- 2026-02-24
AI Technical Summary
Existing ultrasonic defect automatic identification devices cannot comprehensively inspect workpieces, making it difficult to perform flaw detection on all parts of the workpiece. Furthermore, it is not easy to uniformly apply coupling agent to the workpiece surface, making it susceptible to external noise interference, resulting in poor detection performance. In addition, the lack of clamping function reduces the effectiveness of the equipment.
An automatic ultrasonic defect identification device was designed, comprising a base, an automatic ultrasonic defect identification component, a uniform coating component, and a noise reduction clamping component. Through mechanical linkage, it achieves full-coverage scanning of the workpiece surface, automatic application of coupling agent, noise reduction, and clamping, thereby constructing an optimized acoustic detection environment.
It achieves full-coverage inspection of the workpiece surface, improves inspection efficiency and signal-to-noise ratio, enhances inspection sensitivity, simplifies operation procedures, and improves inspection results.
Smart Images
Figure CN121558889A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of ultrasonic defect detection technology, and in particular to an automatic ultrasonic defect identification device and its working method. Background Technology
[0002] Ultrasonic automatic defect identification devices are a non-destructive testing technology based on the diffraction waves at the defect endpoints. They are mainly used for the location, quantification, and evaluation of internal defects in materials to determine whether a workpiece is qualified. However, existing ultrasonic automatic defect identification devices generally cannot perform flaw detection on all parts of a workpiece, resulting in some parts of the workpiece being undetectable. This leads to incomplete detection, increases the detection burden, and reduces the detection effect. Furthermore, it is generally not easy to apply coupling agent to the detection surface of the workpiece, requiring manual assistance. This can result in uneven application of the coupling agent, affecting the ultrasonic detection effect and reducing the equipment's usability. Moreover, it is generally not easy to reduce noise and treat ultrasonic reflection during the detection process, allowing external noise to interfere with the detection process. It is also difficult to enhance the intensity of ultrasonic detection, reducing the detection effect. Finally, it is not possible to clamp the workpiece simultaneously, further reducing the equipment's usability. Summary of the Invention
[0003] The problem solved by this invention is to provide an ultrasonic defect automatic identification device and its working method, which can comprehensively detect defects on the surface of a workpiece, automatically coat the workpiece surface to ensure uniform coating, create a "noise reduction" and "energy enhancement" environment for workpiece detection, and flexibly clamp the workpiece, thereby improving the detection effect.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: an ultrasonic defect automatic identification device, comprising a base, a mounting groove, an ultrasonic defect automatic identification component, a uniform coating component, and a noise reduction clamping component. The base has a mounting groove, the ultrasonic defect automatic identification component is installed between the mounting groove and the base, the uniform coating component is installed above the base, and the noise reduction clamping component is installed between the mounting groove and the base. The ultrasonic defect automatic identification component includes a first motor, a first gear, a limiting moving groove, a limiting moving plate, a first rack, a first bracket, an external gear ring, a second motor, a first guide rail, a lead screw, a second gear, a slider, a threaded hole, and an ultrasonic detector. Limiting moving grooves are provided on both sides of the mounting groove. A limiting moving plate is slidably connected in the limiting moving groove. A first rack is fixed to one outer wall of the limiting moving plate. A first gear is meshed on the outer side of the first rack. A first motor is embedded in the inner wall of the top of the mounting groove, and the bottom end of the output shaft of the first motor is fixed to the outer wall of the first gear. A first bracket is fixed to the top of the limiting moving plate.
[0005] Preferably, a second motor is embedded in the top of the first bracket, and a first guide rail is fixedly connected to the bottom of the output shaft of the second motor. A lead screw is rotatably connected to the inner wall of one side of the first guide rail, and one end of the lead screw extends to the outside of the first guide rail. A second gear is fixedly connected to the outer wall of one end of the lead screw. An external gear ring is meshed on one side of the second gear, and the top of the external gear ring is fixedly connected to the outer wall of the first bracket. A slider is slidably connected inside the first guide rail. A threaded hole is opened on the slider corresponding to the position of the lead screw. An ultrasonic detector is installed at the bottom of the slider.
[0006] Preferably, the uniform coating component includes a second bracket, a lifting hole, a lifting rod, a first spring, a storage tray, a discharge hole, a third motor, a third gear, a locking rotating frame, an internal gear ring, and a coating pad. A second bracket is fixed to the top outer wall of the limiting moving plate. A lifting hole is provided on the second bracket, and a lifting rod is sleeved inside the lifting hole. A storage tray is fixed to the bottom outer wall of the lifting rod. A first spring is fixed to the top outer wall of the storage tray, and the top of the first spring is fixed to the outer wall of the second bracket. Discharge holes are distributed at the bottom of the storage tray. A locking rotating frame is rotatably connected to the outer side of the storage tray. An internal gear ring is fixed to the top outer wall of the locking rotating frame, and a third gear is meshed with the inner side of the internal gear ring. A third motor is embedded in the top of the storage tray, and the top of the output shaft of the third motor is fixed to the outer wall of the third gear. A coating pad is fixed to the bottom of the locking rotating frame corresponding to the discharge hole position.
[0007] Preferably, the noise reduction clamping assembly includes a noise reduction reflective frame, a guide groove, a support plate, a fourth motor, a fourth gear, a noise reduction reflective arc plate, a second rack, a second guide rail, a sliding plate, a third rack, a vertical plate, a guide rod, a second spring, a guide plate, and a clamping plate. The top of the mounting groove is symmetrically connected to the noise reduction reflective frame. The mounting groove and the noise reduction reflective frame are installed with noise reduction reflective arc plates. The outer side of the noise reduction reflective arc plates is symmetrically fixed with the second rack. The mounting groove and the noise reduction reflective frame are provided with guide grooves corresponding to the positions of the second rack. The outer side of the noise reduction reflective frame is symmetrically fixed with the support plate. The fourth motor is embedded in the support plate. The output shaft of the fourth motor is fixed with the fourth gear at both ends, and the outer side of the second rack is meshed with the outer wall of the fourth gear.
[0008] Preferably, a second guide rail is fixedly connected to both outer walls of the noise reduction reflector frame, a slide plate is slidably connected inside the second guide rail, a third rack is fixedly connected to one side of the slide plate, and the top end of the third rack is engaged with the outer wall of the fourth gear, a vertical plate is symmetrically fixedly connected to the bottom end of the third rack, a guide rod is fixedly connected to one side of the vertical plate, a guide plate is installed on the guide rod, a second spring is fixedly connected to one outer wall of the guide plate, and the other end of the second spring is fixedly connected to the outer wall of the vertical plate, and a clamping plate is fixedly connected to one side of the guide plate.
[0009] Preferably, a connecting rod is fixed to one side of the outer wall of the base, and a touch screen is installed on one end of the outer wall of the connecting rod.
[0010] Preferably, a feeding pipe is connected through the top outer wall of the storage tray, and a valve is installed on the feeding pipe.
[0011] Preferably, a vibrator is installed on the inner wall of the top of the storage tray.
[0012] Preferably, the external gear ring is a bevel gear ring, the second gear is a bevel gear, and the outer side of the external gear ring is perpendicularly meshed with the outer wall of the second gear.
[0013] Preferably, the operating method of an ultrasonic defect automatic identification device is as follows: First, the freshly processed workpiece is placed above the base. Then, the lifting rod is pulled, causing the lifting rod on the storage tray to rise along the lifting hole on the second bracket. At this time, the first motor is started, causing the first gear to rotate. Then, under the action of the first rack, the limiting moving plate on the second bracket moves along the limiting moving groove, so that the storage tray is above the workpiece. Then, the lifting rod is released, and under the action of the first spring, the lifting rod on the storage tray descends along the lifting hole on the second bracket, so that the coating pad is in contact with the workpiece. At this time, the valve is opened, and then the coupling agent is injected into the storage tray through the replenishment pipe. Then, the valve is closed, and the vibrator is started to vibrate the coupling agent slightly, so that the coupling agent is discharged through the discharge hole onto the coating pad. Then, the third motor is started, causing the third gear to rotate rapidly. The first motor is activated, causing the first gear to rotate. Then, under the action of the internal gear ring, the applicator pad on the rotating frame rotates along the storage tray, thus applying and wiping the upper surface of the workpiece. Next, the first motor is started, causing the first gear to rotate. Then, under the action of the first rack, the limiting moving plate on the second bracket moves along the limiting moving groove, allowing the applicator pad to completely coat the upper surface of the workpiece. After the coupling agent application is complete, the fourth motor on the support plate is started, causing the fourth gear to rotate. Then, under the action of the second rack, the second rack on the noise-reducing reflective arc plate rotates along the guide groove on the noise-reducing reflective frame, causing the upper surfaces of the two noise-reducing reflective arc plates to be spliced together, forming a ring structure with the noise-reducing reflective frame. The interior of the noise-reducing reflective arc plate is designed as a hollow structure, with its interlayer filled with high-efficiency sound-absorbing material, for example, with a density of 30-50 kg / m³. 3Melamine foam or glass wool is used to absorb and attenuate environmental noise and unnecessary sound wave reflections generated during the detection process. A high acoustic impedance sound wave reflecting layer is tightly attached to the inner wall of the noise-reducing reflective arc plate and the noise-reducing reflective frame. This reflecting layer is preferably a metal foil, such as 0.1mm thick aluminum foil, whose smooth surface can form efficient specular reflection of ultrasonic waves. When the two noise-reducing reflective arc plates are closed, they together with the noise-reducing reflective frame form a ring-shaped acoustic cavity surrounding the workpiece. This cavity reduces noise interference through its internal sound-absorbing structure, and simultaneously uses the reflecting layer to effectively reflect the lateral scattered sound waves emitted by the ultrasonic detector back into the workpiece, thereby enhancing the ultrasonic energy density acting on the defect and achieving the dual effect of both "noise reduction" and "energy enhancement." While the noise-reducing reflective arc plate rotates, another fourth gear drives the slide plate on the third rack to move along the second guide rail, causing the clamping plate on the guide plate to move and contact the outside of the workpiece. When the fourth gear drives the third rack to move continuously, it can cause the guide plate to move along the guide rod on the vertical plate. The device moves and compresses the second spring, which then presses the guide plate in the opposite direction. The clamping plate then clamps and fixes the workpiece. After the workpiece is clamped, the first motor is started to reverse the first gear. Then, under the action of the first rack, the limiting moving plate on the second bracket moves in the opposite direction along the limiting moving groove, positioning the ultrasonic detector above the workpiece. At this point, the ultrasonic detector is started to inspect the workpiece. Then, the second motor is started to slowly rotate the first guide rail. Then, under the cooperation of the external gear ring and the second gear, the lead screw rotates. Then, under the action of the threaded hole, the slider moves slowly along the first guide rail. The ultrasonic detector performs flaw detection on a portion of the workpiece. After the flaw detection in that area is completed, the first motor is started again to rotate the first gear. Then, under the action of the first rack, the limiting moving plate on the second bracket moves along the limiting moving groove, allowing the ultrasonic detector to inspect all parts of the workpiece. The inspection results can be displayed on the touch screen on the connecting rod.
[0014] The beneficial effects of this invention are: it can achieve comprehensive coverage and high-efficiency automation. Due to the dual-dimensional motion design of the ultrasonic scanning structure, it is ensured that the probe can scan the entire workpiece surface without omission. The scanning action is coordinated with the movement of the coupling agent coating module, realizing full automation from preparation to detection, which greatly improves the detection efficiency. The significant improvement in signal-to-noise ratio is achieved by the clamping and acoustic environment enhancement module, which, in addition to fulfilling the basic function of rigidly fixing the workpiece, simultaneously constructs an optimized acoustic detection environment. The sound-absorbing material inside effectively absorbs environmental noise and stray reflected waves, while the sound wave reflecting layer on its inner side reflects and focuses the energy emitted by the ultrasonic probe that might otherwise dissipate into the workpiece. This combination of "noise reduction" and "energy enhancement," combined with the uniform and bubble-free coupling interface ensured by the automatic coupling agent coating structure, significantly improves the signal-to-noise ratio and detection sensitivity of the ultrasonic signal, resulting in an unexpectedly enhanced ability to identify minute and deep defects. Functional integration and space optimization: Through ingenious mechanical linkage design, the workpiece clamping and the construction of the detection environment are completed synchronously by a single drive source, which simplifies the structure, shortens the operation time, and demonstrates a high degree of functional integration.
[0015] This design scheme, which organically integrates four major functions—"high-quality coupling agent coating," "stable and flexible clamping," "active optimization of acoustic environment," and "full-area path scanning"—and generates a synergistic enhancement effect, is a design that has not been revealed in the existing technology in this field. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a front sectional view of the present invention; Figure 3 This is a partial cross-sectional view of the ultrasonic defect automatic identification component of the present invention; Figure 4 This is a partial cross-sectional view of the uniform coating component of the present invention; Figure 5 This is a side sectional view of the present invention; Figure 6 This is a three-dimensional structural diagram of the ultrasonic defect automatic identification component of the present invention; Figure 7 This is a three-dimensional structural diagram of the noise reduction clamping component of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of the structure of region A in the image; Figure 9 This is a partial three-dimensional structural diagram of the noise reduction clamping component of the present invention; Figure 10 For the present invention Figure 9 Partial 3D structural diagram.
[0017] Legend: 1. Base; 2. Mounting slot; 3. Ultrasonic defect automatic identification component; 4. Uniform coating component; 5. Noise reduction clamping component; 6. Connecting rod; 7. Touch screen; 8. Feeding pipe; 9. Valve; 10. Vibrator; 301. First motor; 302. First gear; 303. Limiting movement slot; 304. Limiting movement plate; 305. First rack; 306. First bracket; 307. External gear ring; 308. Second motor; 309. First guide rail; 3010. Lead screw; 3011. Second gear; 3012. Slider; 3013. Threaded hole; 3014. Ultrasonic detector; 401. Second bracket; 402. Lifting mechanism 403. Hole; 404. Lifting rod; 405. First spring; 406. Storage tray; 407. Discharge hole; 408. Third motor; 409. Third gear; 4010. Engaging rotating frame; 4011. Internal gear ring; 4012. Coating pad; 503. Noise-reducing reflective frame; 504. Guide groove; 505. Support plate; 506. Noise-reducing reflective arc plate; 507. Second rack; 508. Second guide rail; 509. Slide plate; 5010. Third rack; 5011. Vertical plate; 5012. Guide rod; 5013. Second spring; 5014. Guide plate; 5015. Clamping plate. Detailed Implementation
[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0019] Example 1 See Figures 1-6An automatic ultrasonic defect identification device and its working method are disclosed, comprising a base 1, a mounting groove 2, an automatic ultrasonic defect identification component 3, a uniform coating component 4, and a noise reduction clamping component 5. The mounting groove 2 is formed within the base 1, and the automatic ultrasonic defect identification component 3 is installed between the mounting groove 2 and the base 1. The uniform coating component 4 is installed above the base 1, and the noise reduction clamping component 5 is installed between the mounting groove 2 and the base 1. A connecting rod 6 is fixed to one outer wall of the base 1, and a touch screen 7 is installed on the outer wall of one end of the connecting rod 6. The device is connected to an ultrasonic detector 3014. All parts of the workpiece are inspected for flaws, and the inspection results can be displayed on the touch screen 7 on the connecting rod 6. A replenishment pipe 8 is connected through the top outer wall of the storage tray 405. A valve 9 is installed on the replenishment pipe 8. When the valve 9 is opened, the coupling agent is injected into the storage tray 405 through the replenishment pipe 8 to facilitate the replenishment of the coupling agent. A vibrator 10 is installed on the top inner wall of the storage tray 405. When the vibrator 10 is started, the coupling agent is vibrated at a small amplitude to facilitate the discharge of the coupling agent through the discharge hole 406 onto the coating pad 4011. The ultrasonic defect automatic identification component 3 includes a first motor 301, a first gear 302, a limiting movement groove 303, a limiting movement plate 304, a first rack 305, a first bracket 306, an external gear ring 307, a second motor 308, a first guide rail 309, a lead screw 3010, a second gear 3011, a slider 3012, a threaded hole 3013, and an ultrasonic detector 3014. Limiting movement grooves 303 are provided on both sides of the mounting groove 2. A limiting movement plate 304 is slidably connected within the limiting movement groove 303. A first rack 305 is fixed to one outer wall of the limiting movement plate 304, and a first gear is meshed with the outer side of the first rack 305. 302. A first motor 301 is embedded in the inner wall of the top of the mounting slot 2, and the bottom end of the output shaft of the first motor 301 is fixed to the upper limit moving plate 304 on the outer wall of the first gear 302. A first bracket 306 is fixed to the top of the first bracket 306. A second motor 308 is embedded in the top of the first bracket 306, and the bottom end of the output shaft of the second motor 308 is fixed to the first guide rail 309. A lead screw 3010 is rotatably connected to the inner wall of one side of the first guide rail 309, and one end of the lead screw 3010 extends to the outside of the first guide rail 309. A second gear 3011 is fixed to the outer wall of one end of the lead screw 3010, and an outer gear 3011 is meshed on one side of the second gear 3011. A gear ring 307 is provided, with its top end fixed to the outer wall of the first bracket 306. A slider 3012 is slidably connected within the first guide rail 309. A threaded hole 3013 is provided on the slider 3012 corresponding to the position of the lead screw 3010. An ultrasonic detector 3014 is installed at the bottom of the slider 3012. The second motor 308 is started to slowly rotate the first guide rail 309. Then, with the cooperation of the outer gear ring 307 and the second gear 3011, the lead screw 3010 rotates. Under the action of the threaded hole 3013, the slider 3012 moves slowly along the first guide rail 309. The ultrasonic detector 3014 then inspects the workpiece. Flaw detection is performed on a portion of the area. After the flaw detection in that area is completed, the first motor 301 is started again to rotate the first gear 302. Then, under the action of the first rack 305, the limiting moving plate 304 on the second bracket 401 moves along the limiting moving groove 303, so that the ultrasonic detector 3014 can detect flaws on all parts of the workpiece. The external gear ring 307 is a bevel gear ring, and the second gear 3011 is a bevel gear. The outer side of the external gear ring 307 is perpendicularly meshed with the outer wall of the second gear 3011. The external gear ring 307 can drive the second gear 3011 to rotate while the first guide rail 309 rotates.
[0020] Working principle: After the workpiece clamping is completed, the first motor 301 is started to reverse the first gear 302. Then, under the action of the first rack 305, the limiting moving plate 304 on the second bracket 401 moves in the opposite direction along the limiting moving groove 303, so that the ultrasonic detector 3014 is positioned above the workpiece. At this time, the ultrasonic detector 3014 is started to inspect the workpiece. Then, the second motor 308 is started to slowly rotate the first guide rail 309. Then, under the cooperation of the external gear ring 307 and the second gear 3011, the lead screw 3010 rotates. Then, under the action of the threaded hole 3013, the slider 3012 moves along the first guide rail 309. The probe moves slowly, and the ultrasonic detector 3014 performs flaw detection on a portion of the workpiece. After the flaw detection in that area is completed, the first motor 301 is started again to rotate the first gear 302. Then, under the action of the first rack 305, the limiting moving plate 304 on the second bracket 401 moves along the limiting moving groove 303, so that the ultrasonic detector 3014 can detect flaws on all parts of the workpiece. The detection results can be displayed on the touch screen 7 on the connecting rod 6. Due to the dual-dimensional motion design of the ultrasonic scanning structure, it is ensured that the probe can scan the entire surface of the workpiece without omission, avoiding omissions and improving the detection effect.
[0021] Example 2 See Figure 1 , Figure 2 and Figure 4 The uniform coating component 4 includes a second bracket 401, a lifting hole 402, a lifting rod 403, a first spring 404, a storage tray 405, a discharge hole 406, a third motor 407, a third gear 408, a locking rotating frame 409, an internal gear ring 4010, and a coating pad 4011. The second bracket 401 is fixedly connected to the top outer wall of the limiting moving plate 304. The second bracket 401 has a lifting hole 402, and the lifting rod 403 is sleeved inside the lifting hole 402. The storage tray 405 is fixedly connected to the bottom outer wall of the lifting rod 403, and the first spring 404 is fixedly connected to the top outer wall of the storage tray 405. The top end of the first spring 404 is fixed to the outer wall of the second bracket 401. The bottom end of the storage tray 405 is provided with discharge holes 406. The outer side of the storage tray 405 is rotatably connected to a locking rotating frame 409. An internal gear ring 4010 is fixed to the top outer wall of the locking rotating frame 409. A third gear 408 is meshed on the inner side of the internal gear ring 4010. A third motor 407 is embedded in the top of the storage tray 405. The top end of the output shaft of the third motor 407 is fixed to the outer wall of the third gear 408. A cotton pad 4011 is fixed to the bottom end of the locking rotating frame 409 at the position corresponding to the discharge hole 406.
[0022] First, place the freshly processed workpiece above the base 1. Then, pull the lifting rod 403, causing the lifting rod 403 on the storage tray 405 to rise along the lifting hole 402 on the second bracket 401. At this time, start the first motor 301 to rotate the first gear 302. Then, under the action of the first rack 305, move the limiting moving plate 304 on the second bracket 401 along the limiting moving groove 303, so that the storage tray 405 is above the workpiece. Then, release the lifting rod 403. Under the action of the first spring 404, the lifting rod 403 on the storage tray 405 will descend along the lifting hole 402 on the second bracket 401, so that the coating pad 4011 is in contact with the workpiece. At this time, open the valve 9, and then inject the coupling agent into the storage tray 405 through the replenishment pipe 8. Then, close the valve 9, and start the vibrator 10 to vibrate the coupling agent slightly, so that the coupling agent is discharged through the discharge hole 406 to the coating pad. The cotton pad 4011 is applied to the workpiece. Then, the third motor 407 is started to make the third gear 408 rotate rapidly. Then, under the action of the internal gear ring 4010, the cotton pad 4011 on the engaging rotating frame 409 rotates along the storage tray 405, thereby applying and wiping the workpiece with the cotton pad 4011. Then, the first motor 301 is started to make the first gear 302 rotate. Then, under the action of the first rack 305, the limiting moving plate 304 on the second bracket 401 moves along the limiting moving groove 303, so that the cotton pad 4011 applies the couplant to the entire upper surface of the workpiece. This can automatically apply the couplant to the workpiece, ensuring that the couplant is applied evenly without manual assistance, reducing the application burden and improving the application effect of the couplant. Moreover, the scanning action and the couplant application module move in coordination, realizing the full automation of the process from preparation to detection, which greatly improves the detection efficiency.
[0023] Example 3 See Figures 7-10The noise reduction clamping assembly 5 includes a noise reduction reflector frame 501, a guide groove 502, a support plate 503, a fourth motor 504, a fourth gear 505, a noise reduction reflector arc plate 506, a second rack 507, a second guide rail 508, a sliding plate 509, a third rack 5010, a vertical plate 5011, a guide rod 5012, a second spring 5013, a guide plate 5014, and a clamping plate 5015. The top of the mounting groove 2 is symmetrically connected to the noise reduction reflector frame 501. The noise reduction reflector arc plate 506 is installed in the mounting groove 2 and the noise reduction reflector frame 501. The outer sides of the noise reduction reflector arc plate 506 are symmetrically fixed. A second rack 507 is attached. Guide grooves 502 are distributed on the mounting groove 2 and the noise-reducing reflector frame 501 corresponding to the position of the second rack 507. Support plates 503 are symmetrically fixed to the outer side of the noise-reducing reflector frame 501. A fourth motor 504 is embedded in the support plate 503. Fourth gears 505 are fixed to both ends of the output shaft of the fourth motor 504, and the outer side of the second rack 507 is meshed with the outer wall of the fourth gear 505. Second guide rails 508 are fixed to both outer walls of the noise-reducing reflector frame 501. A sliding plate 509 is slidably connected within the second guide rails 508. One side of the sliding plate 509 is fixed... A third rack 5010 is attached, and the top end of the third rack 5010 is meshed with the outer wall of the fourth gear 505. A vertical plate 5011 is symmetrically fixed to the bottom end of the third rack 5010. A guide rod 5012 is fixed to one side of the vertical plate 5011, and a guide plate 5014 is mounted on the guide rod 5012. A second spring 5013 is fixed to one outer wall of the guide plate 5014, and the other end of the second spring 5013 is fixed to the outer wall of the vertical plate 5011. A clamping plate 5015 is fixed to one side of the guide plate 5014. While the noise-reducing reflective arc plate 506 rotates, it is connected via another... The fourth gear 505 drives the slide plate 509 on the third rack 5010 to move along the second guide rail 508, causing the clamping plate 5015 on the guide plate 5014 to move and contact the outside of the workpiece. When the fourth gear 505 drives the third rack 5010 to move continuously, the guide plate 5014 can move along the guide rod 5012 on the vertical plate 5011, and the second spring 5013 is compressed. Then, the compressed second spring 5013 presses the guide plate 5014 in the opposite direction, and the clamping plate 5015 clamps and fixes the workpiece.
[0024] After the coupling agent is applied, the fourth motor 504 on the support plate 503 is activated to rotate the fourth gear 505. Then, under the action of the second rack 507, the second rack 507 on the noise-reducing reflective arc plate 506 rotates along the guide groove 502 on the noise-reducing reflective frame 501, causing the two noise-reducing reflective arc plates 506 to be spliced together at the top and form a ring structure with the noise-reducing reflective frame 501. The interior of the noise-reducing reflective arc plate 506 is set as a hollow structure, and its interlayer is filled with a high-efficiency sound-absorbing material, for example, with a density of 30-50 kg / m³.3 Melamine foam or glass wool is used to absorb and attenuate environmental noise and unnecessary sound wave reflections generated during the detection process. A high acoustic impedance sound wave reflecting layer is tightly attached to the inner wall of the noise-reducing reflective arc plate 506 and the noise-reducing reflective frame 501. This reflecting layer is preferably a metal foil, such as aluminum foil with a thickness of 0.1 mm, whose smooth surface can form efficient specular reflection of ultrasonic waves. When the two noise-reducing reflective arc plates 506 are closed, they together with the noise-reducing reflective frame 501 form a ring-shaped acoustic cavity surrounding the workpiece. The cavity reduces noise interference through its internal sound-absorbing structure, while simultaneously using a reflective layer to effectively reflect the laterally scattered sound waves emitted by the ultrasonic detector 3014 back into the workpiece, thereby enhancing the ultrasonic energy density acting on the defect. This achieves the dual effect of both "noise reduction" and "energy enhancement." As the noise-reducing reflective arc plate 506 rotates, another fourth gear 505 drives the slide plate 509 on the third rack 5010 to move along the second guide rail 508, causing the clamping plate 5015 on the guide plate 5014 to... The fourth gear 505 drives the third rack 5010 to move continuously, causing the guide plate 5014 to move along the guide rod 5012 on the vertical plate 5011 and compressing the second spring 5013. Then, the compressed second spring 5013 presses the guide plate 5014 in the opposite direction, and the clamping plate 5015 clamps and fixes the workpiece. In addition to fulfilling the basic function of rigidly fixing the workpiece, the clamping and acoustic environment enhancement module simultaneously constructs an optimized acoustic detection environment. Its internal sound-absorbing material effectively absorbs environmental noise and stray reflected waves, while its inner acoustic wave reflecting layer can reflect and focus the energy emitted by the ultrasonic probe that might otherwise dissipate into the workpiece. This combination of "noise reduction" and "energy enhancement", combined with the uniform and bubble-free coupling interface ensured by the automatic coupling agent coating structure, significantly improves the signal-to-noise ratio and detection sensitivity of the ultrasonic signal, resulting in an unexpected improvement in the ability to identify small and deep defects.
[0025] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. An automatic ultrasonic defect identification device, characterized in that, The device includes a base (1), a mounting groove (2), an ultrasonic defect automatic identification component (3), a uniform coating component (4), and a noise reduction clamping component (5). The mounting groove (2) is provided in the base (1). The ultrasonic defect automatic identification component (3) is installed between the mounting groove (2) and the base (1). The uniform coating component (4) is installed above the base (1). The noise reduction clamping component (5) is installed between the mounting groove (2) and the base (1). The ultrasonic defect automatic identification component (3) includes a first motor (301), a first gear (302), a limiting movement groove (303), a limiting movement plate (304), a first rack (305), a first bracket (306), an external gear ring (307), a second motor (308), a first guide rail (309), a lead screw (3010), a second gear (3011), a slider (3012), a threaded hole (3013), and an ultrasonic detector (3014). Limiting movement grooves are provided on both sides of the mounting groove (2). 303), a limiting moving plate (304) is slidably connected in the limiting moving groove (303), a first rack (305) is fixedly connected to one side of the outer wall of the limiting moving plate (304), a first gear (302) is meshed on the outer side of the first rack (305), a first motor (301) is embedded in the inner wall of the top of the mounting groove (2), and the bottom end of the output shaft of the first motor (301) is fixedly connected to the outer wall of the first gear (302), and a first bracket (306) is fixedly connected to the top of the limiting moving plate (304).
2. The ultrasonic defect automatic identification device according to claim 1, characterized in that, A second motor (308) is embedded in the top of the first bracket (306). The bottom end of the output shaft of the second motor (308) is fixed to a first guide rail (309). A lead screw (3010) is rotatably connected to the inner wall of one side of the first guide rail (309), and one end of the lead screw (3010) extends to the outside of the first guide rail (309). A second gear (3011) is fixed to the outer wall of one end of the lead screw (3010). An external gear ring (307) is meshed on one side of the second gear (3011), and the top end of the external gear ring (307) is fixed to the outer wall of the first bracket (306). A slider (3012) is slidably connected inside the first guide rail (309). A threaded hole (3013) is opened on the slider (3012) corresponding to the position of the lead screw (3010). An ultrasonic detector (3014) is installed at the bottom end of the slider (3012).
3. The ultrasonic defect automatic identification device according to claim 1, characterized in that, The uniform coating component (4) includes a second bracket (401), a lifting hole (402), a lifting rod (403), a first spring (404), a storage tray (405), a discharge hole (406), a third motor (407), a third gear (408), a locking rotating frame (409), an internal gear ring (4010), and a coating pad (4011). The second bracket (401) is fixedly connected to the top outer wall of the limiting moving plate (304). The second bracket (401) has a lifting hole (402) on it. The lifting rod (403) is sleeved in the lifting hole (402). The storage tray (405) is fixedly connected to the bottom outer wall of the lifting rod (403). The first spring (404) is fixedly connected to the top outer wall of the storage tray (405). 04), and the top end of the first spring (404) is fixed to the outer wall of the second bracket (401). The bottom end of the storage tray (405) is provided with discharge holes (406). The outer side of the storage tray (405) is rotatably connected to a locking rotating frame (409). The top outer wall of the locking rotating frame (409) is fixed with an internal gear ring (4010). The inner side of the internal gear ring (4010) is meshed with a third gear (408). The top end of the storage tray (405) is inlaid with a third motor (407), and the top end of the output shaft of the third motor (407) is fixed to the outer wall of the third gear (408). The bottom end of the locking rotating frame (409) is fixed with a cotton pad (4011) corresponding to the position of the discharge hole (406).
4. The ultrasonic defect automatic identification device according to claim 1, characterized in that, The noise reduction clamping assembly (5) includes a noise reduction reflector frame (501), a guide groove (502), a support plate (503), a fourth motor (504), a fourth gear (505), a noise reduction reflector arc plate (506), a second rack (507), a second guide rail (508), a sliding plate (509), a third rack (5010), a vertical plate (5011), a guide rod (5012), a second spring (5013), a guide plate (5014), and a clamping plate (5015). The top of the mounting groove (2) is symmetrically connected to the noise reduction reflector frame (501). The mounting groove (2) and the noise reduction reflector frame (501) are connected. A noise-reducing reflective arc plate (506) is installed inside. A second rack (507) is symmetrically fixed to the outer side of the noise-reducing reflective arc plate (506). Guide grooves (502) are distributed on the mounting groove (2) and the noise-reducing reflective frame (501) corresponding to the position of the second rack (507). A support plate (503) is symmetrically fixed to the outer side of the noise-reducing reflective frame (501). A fourth motor (504) is embedded in the support plate (503). A fourth gear (505) is fixed to both ends of the output shaft of the fourth motor (504), and the outer side of the second rack (507) is meshed and installed on the outer wall of the fourth gear (505).
5. The ultrasonic defect automatic identification device according to claim 4, characterized in that, The noise reduction reflector frame (501) has a second guide rail (508) fixedly connected to both outer walls. A slide plate (509) is slidably connected inside the second guide rail (508). A third rack (5010) is fixedly connected to one side of the slide plate (509), and the top of the third rack (5010) is meshed with the outer wall of the fourth gear (505). A vertical plate (5011) is symmetrically fixedly connected to the bottom end of the third rack (5010). A guide rod (5012) is fixedly connected to one side of the vertical plate (5011). A guide plate (5014) is installed on the guide rod (5012). A second spring (5013) is fixedly connected to one outer wall of the guide plate (5014), and the other end of the second spring (5013) is fixedly connected to the outer wall of the vertical plate (5011). A clamping plate (5015) is fixedly connected to one side of the guide plate (5014).
6. The ultrasonic defect automatic identification device according to claim 1, characterized in that, A connecting rod (6) is fixed to one side of the outer wall of the base (1), and a touch screen (7) is installed on one end of the outer wall of the connecting rod (6).
7. The ultrasonic defect automatic identification device according to claim 3, characterized in that, A feeding pipe (8) is connected through the top outer wall of the storage tray (405), and a valve (9) is installed on the feeding pipe (8).
8. The automatic ultrasonic defect identification device according to claim 3, characterized in that, A vibrator (10) is installed on the inner wall of the top of the storage tray (405).
9. An automatic ultrasonic defect identification device according to claim 2, characterized in that, The external gear ring (307) is a bevel gear ring, the second gear (3011) is a bevel gear, and the outer side of the external gear ring (307) is perpendicularly meshed with the outer wall of the second gear (3011).
10. The operating method of the ultrasonic defect automatic identification device according to any one of claims 1-9, characterized in that, First, place the freshly processed workpiece above the base (1), then pull the lifting rod (403) to raise the lifting rod (403) on the storage tray (405) along the lifting hole (402) on the second bracket (401). At this time, start the first motor (301) to make the first gear (302) rotate. Then, under the action of the first rack (305), the limiting moving plate (304) on the second bracket (401) moves along the limiting moving groove (303) so that the storage tray (405) is above the workpiece. Then release the lifting rod (403) and the first spring (405) will release the lifting rod (403). Under the action of 4), the lifting rod (403) on the storage tray (405) is lowered along the lifting hole (402) on the second bracket (401), so that the coating pad (4011) is in contact with the workpiece. At this time, the valve (9) is opened, and then the coupling agent is injected into the storage tray (405) through the feeding pipe (8). At this time, the valve (9) is closed, and then the vibrator (10) is started to vibrate the coupling agent slightly, so that the coupling agent is discharged through the discharge hole (406) onto the coating pad (4011). Then the third motor (407) is started to make the third gear (408) rotate rapidly. Then, under the action of the internal gear ring (4010), the applicator pad (4011) on the engaging rotating frame (409) rotates along the storage tray (405), thereby applying and wiping the upper surface of the workpiece with the applicator pad (4011). Then, the first motor (301) is started to make the first gear (302) rotate. Then, under the action of the first rack (305), the limiting moving plate (304) on the second bracket (401) moves along the limiting moving groove (303), so that the applicator pad (4011) applies the entire upper surface of the workpiece. When the coupling agent application is completed... Then, the fourth motor (504) on the support plate (503) is started to make the fourth gear (505) rotate. Then, under the action of the second rack (507), the second rack (507) on the noise reduction reflector plate (506) rotates along the guide groove (502) on the noise reduction reflector frame (501), so that the two noise reduction reflector plates (506) are spliced together at the top and form a ring structure with the noise reduction reflector frame (501). The interior of the noise reduction reflector plate (506) is set as a hollow structure, and its interlayer is filled with high-efficiency sound-absorbing material, such as a density of 30-50 kg / m³. 3 Melamine foam or glass wool is used to absorb and attenuate environmental noise and unnecessary sound wave reflections generated during the detection process. A high acoustic impedance sound wave reflection layer is tightly attached to the inner wall of the noise reduction reflective arc plate (506) and the noise reduction reflective frame (501). This reflection layer is preferably a metal foil, such as an aluminum foil with a thickness of 0.1 mm. Its smooth surface can form an efficient mirror reflection of ultrasonic waves. When the two noise reduction reflective arc plates (506) are closed, they together with the noise reduction reflective frame (501) form a ring-shaped acoustic cavity surrounding the workpiece. This cavity reduces noise interference through the internal sound absorption structure, and at the same time uses the reflection layer to effectively reflect the lateral scattered sound waves emitted by the ultrasonic detector (3014) back into the workpiece, thereby... The ultrasonic energy density acting on the defect is enhanced, achieving the dual effect of both "noise reduction" and "energy enhancement". While the noise reduction reflective arc plate (506) rotates, the slide plate (509) on the third rack (5010) is driven by another fourth gear (505) to move along the second guide rail (508), causing the clamping plate (5015) on the guide plate (5014) to move and contact the outside of the workpiece. When the fourth gear (505) drives the third rack (5010) to move continuously, the guide plate (5014) can be moved along the guide rod (5012) on the vertical plate (5011), and the second spring (5013) is compressed. Then, through the compression of the second spring, the second spring is compressed. Spring (5013) applies reverse compression to guide plate (5014), and clamping plate (5015) clamps and fixes the workpiece. After the workpiece is clamped, the first motor (301) is started to reverse the first gear (302). Then, under the action of the first rack (305), the limiting moving plate (304) on the second bracket (401) moves in the reverse direction along the limiting moving groove (303), so that the ultrasonic detector (3014) is above the workpiece. At this time, the ultrasonic detector (3014) is started to detect the workpiece. Then, the second motor (308) is started to slowly rotate the first guide rail (309). Then, the external gear ring (307) and the second gear (3011) cooperate to rotate the first guide rail (309). The lead screw (3010) is rotated, and then the slider (3012) is slowly moved along the first guide rail (309) under the action of the threaded hole (3013). The ultrasonic detector (3014) performs flaw detection on a part of the workpiece. After the flaw detection in this area is completed, the first motor (301) is started again to make the first gear (302) rotate. Then, under the action of the first rack (305), the limiting moving plate (304) on the second bracket (401) moves along the limiting moving groove (303) so that the ultrasonic detector (3014) can detect flaws on all parts of the workpiece. The detection results can be displayed on the touch screen (7) on the connecting rod (6).