Ultrasonic flaw detection device for titanium alloy plate

Abstract

The invention relates to the technical field of plate flaw detection, in particular to an ultrasonic flaw detection device for titanium alloy plates, which comprises a plate transportation assembly, a flaw detection assembly, a smearing assembly and a probe cleaning assembly, the flaw detection assembly comprises an ultrasonic probe and a three-axis displacement mechanism, the three-axis displacement mechanism comprises a moving frame, a moving seat and a lifting seat, the smearing assembly comprises a lifting frame plate, a strip-shaped spray head and a rubber scraping strip, the probe cleaning assembly comprises a wiping mechanism and a rotating mechanism, the rotating mechanism comprises a rotating plate, and a concave table is arranged on the rotating plate. The ultrasonic probe cleaning device is provided with the probe cleaning assembly, the ultrasonic probe is cleaned through the probe cleaning assembly after flaw detection is completed, so that a coupling agent attached to the ultrasonic probe is removed, and corrosion and damage to the ultrasonic probe due to the fact that the coupling agent exists on the surface of the ultrasonic probe for a long time are prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of plate flaw detection, and specifically relates to an ultrasonic flaw detection device for titanium alloy plates. Background Art

[0002] Flaw detection, also known as non-destructive testing, commonly known as flaw detection, refers to the act of using changes in heat, sound, light, electricity, magnetism, etc. caused by abnormalities or defects in the internal structure of materials, with the help of modern technologies and equipment, to inspect and test the internal and surface structures, properties, states, and the type, nature, quantity, shape, position, size, distribution, and changes of defects of the test piece without damaging or affecting the service performance of the test object and without harming the internal tissues of the test object.

[0003] There are many methods of flaw detection. Among them, ultrasonic flaw detection is a non-destructive testing method that uses the acoustic performance differences between materials and their defects to detect internal defects of materials by examining the reflection of ultrasonic wave propagation waveforms and the energy changes in penetration time.

[0004] The existing patent with the publication number CN115932040B in China discloses a plate detection device based on ultrasonic flaw detection technology. The above patent also has the following defects: First, before the ultrasonic probe detects the plate, it is necessary to apply a coupling agent to the plate to expel the air between the probe and the plate through the coupling agent. When the plate flaw detection is completed, there will be residual coupling agent on the ultrasonic probe. The residual coupling agent may form an uneven layer on the probe surface, thus affecting the transmission and reception of ultrasonic waves, which may lead to problems such as blurred images, reduced resolution, and the appearance of artifacts. And if the coupling agent exists on the probe surface for a long time, it may cause corrosion and damage to the probe material, thus shortening the service life of the probe; Second, when applying the coupling agent to the plate in the above patent, the coupling agent will be scraped out of the plate by the scraper, and at this time, the coupling agent will directly fall to the periphery of the plate, thus polluting the detection environment.

[0005] Therefore, it is necessary to provide an ultrasonic flaw detection device for titanium alloy plates to solve the above problems. Summary of the Invention

[0006] Based on this, it is necessary to provide an ultrasonic flaw detection device for titanium alloy plates in view of the problems in the prior art.

[0007] To solve the problems of the prior art, the technical solution adopted by the present invention is as follows: An ultrasonic flaw detection device for titanium alloy plates, comprising a plate transportation assembly, a flaw detection assembly, a coating assembly and a probe cleaning assembly. The plate transportation assembly includes a first linear transportation table and a second linear transportation table that are spaced apart in the horizontal direction. The flaw detection assembly includes an ultrasonic probe and a three-axis displacement mechanism. The three-axis displacement mechanism includes a moving frame, a moving seat and a lifting seat. The moving frame is arranged above the first linear transportation table, the moving seat is arranged on the moving frame, the lifting seat is arranged on the moving seat, and the ultrasonic probe is elastically connected to the lifting seat. The coating assembly includes a lifting frame plate, a strip-shaped nozzle and a rubber squeegee. The lifting frame plate is arranged on the moving frame, the strip-shaped nozzle is connected to the lifting frame plate, and the rubber squeegee is connected to the strip-shaped nozzle. A collection box is arranged between the first linear transportation table and the second linear transportation table. The probe cleaning assembly includes a wiping mechanism and a rotating mechanism. The rotating mechanism includes a rotating plate arranged beside the first linear transportation table. The rotating plate is provided with a concave platform for the ultrasonic probe to be inserted downward. The wiping mechanism includes a cleaning cloth, a winding shaft and a unwinding shaft. The winding shaft and the unwinding shaft are both arranged on the rotating plate, and the winding shaft and the unwinding shaft are respectively arranged on both sides of the concave platform. The cleaning cloth is arranged on the unwinding shaft, and one end of the cleaning cloth crosses the concave platform and is wound around the winding shaft.

[0008] Further, support frames in a horizontal state are fixedly arranged on both sides of the first linear transportation table. A first slide rail in a horizontal state is fixedly arranged on each support frame. A first electric slider is slidably arranged on the first slide rail. The moving frame is horizontally arranged between the two first slide rails, and both ends of the moving frame are respectively connected to the two first electric sliders. A second slide rail in a horizontal state is fixedly arranged on the moving frame. A second electric slider is slidably arranged on the second slide rail. The moving seat is a first slide table cylinder, and the first slide table cylinder is fixedly connected to the second electric slider. The lifting seat is fixedly connected to the output end of the first slide table cylinder.

[0009] Further, two groups of first support rods in a symmetrical state are arranged on the lifting seat. Each group of first support rods is in a horizontal state. Two semi-circular clamping rings are arranged between the two groups of first support rods. The ultrasonic probe is clamped between the two semi-circular clamping rings. A lug is formed on the outer wall of each semi-circular clamping ring. A first limiting rod is fixedly arranged on the lug. The two first limiting rods respectively correspond to the two groups of first support rods. Each first limiting rod passes upward through the corresponding first support rod. A first spring is sleeved on each first limiting rod. Both ends of the first spring respectively abut against the first support rod and the lug. A first limiting nut is screwed on the end of each first limiting rod that passes out of the first support rod.

[0010] Further, a U-shaped bracket is fixedly arranged beside the first linear transportation table. A horizontal support plate is fixedly arranged at the top of the U-shaped bracket. A first rotating shaft vertically passing through the support plate is formed at the bottom of the rotating plate, and the first rotating shaft is rotatably connected to the support plate. A rubber ring is embedded on the inner wall of the concave platform.

[0011] Further, a horizontal second rotating shaft is rotatably arranged inside the U-shaped bracket. A first bevel gear is coaxially fixed to the second rotating shaft. A second bevel gear is coaxially fixed to the first rotating shaft. The first bevel gear and the second bevel gear are meshed with each other. A driving gear is coaxially fixed to the second rotating shaft. A vertical guide bar is fixedly arranged at the bottom of the support plate. A first rack meshed with the driving gear is slidably arranged on the guide bar in the vertical direction. An elastic seat is arranged beside the U-shaped bracket and slides in the vertical direction. The first rack is connected to the elastic seat.

[0012] Further, the elastic seat includes a pressing plate and two second springs. Two symmetrically arranged second support rods are fixedly arranged on the outer wall of the U-shaped bracket. Each second support rod is horizontal. The pressing plate is horizontally arranged above the second support rods. Two second limiting rods are formed at the bottom of the pressing plate. Each second limiting rod vertically penetrates through the corresponding second support rod. Each second spring is sleeved on the corresponding second limiting rod. Two ends of each second spring respectively abut against the pressing plate and the second support rod. A second limiting nut is screwed on the end of each second limiting rod passing through the second support rod. A connecting rod connected to the first rack is fixedly arranged on one of the second limiting rods. A strip-shaped through groove for the connecting rod to pass through is formed on the U-shaped bracket.

[0013] Further, a horizontal support arm is formed at one end of the rotating plate. A third rotating shaft beside the winding shaft is rotatably arranged on the support arm. Commutating gears are coaxially fixed to both the third rotating shaft and the winding shaft, and the two commutating gears are meshed with each other. A rotating ring and a turntable are coaxially arranged at one end of the third rotating shaft. The rotating ring is fixedly connected to the third rotating shaft, and the turntable is rotatably connected to the third rotating shaft. A circle of ratchet teeth is formed on one side of the turntable. A plurality of elastic pawls cooperating with the ratchet teeth are fixedly arranged on the rotating ring. A toothed ring is fixedly sleeved on the turntable. A second rack meshed with the toothed ring is arranged on the support arm. The second rack slides in the vertical direction and is elastically connected to the support arm. An arc-shaped strip plate is fixedly arranged at the bottom of the second rack. A pressing rod pressing on the top of the arc-shaped strip plate is fixedly arranged on the first rack.

[0014] Further, a horizontal pressing block is fixedly arranged on the second rack. Two symmetrically arranged and vertically downward third limiting rods passing through the support arm are formed at the bottom of the pressing block. A third spring is sleeved on each third limiting rod. Two ends of the third spring respectively abut against the pressing block and the support arm. A third limiting nut is screwed on the end of each third limiting rod passing through the support arm.

[0015] Further, the strip-shaped nozzle includes a strip-shaped liquid storage box, a strip-shaped connection shell, and a strip-shaped nozzle. A second sliding table cylinder is fixedly provided on the moving frame, and the lifting frame plate is fixed to the output end of the second sliding table cylinder. The strip-shaped liquid storage box is horizontally connected to the lifting frame plate, and one end of the strip-shaped liquid storage box is provided with a liquid injection port. The strip-shaped nozzle is horizontally arranged directly below the strip-shaped liquid storage box. The strip-shaped connection shell connects the strip-shaped nozzle and the strip-shaped liquid storage box. A strip-shaped spray opening is formed in the strip-shaped nozzle, and a liquid spraying narrow groove is formed in the strip-shaped connection shell. The upper end and the lower end of the liquid spraying narrow groove are respectively communicated with the strip-shaped liquid storage box and the strip-shaped spray opening.

[0016] The beneficial effects of the present invention compared with the prior art are as follows: First, the device is provided with a probe cleaning component. After the flaw detection is completed, the ultrasonic probe is cleaned through the probe cleaning component to remove the coupling agent adhered to the ultrasonic probe, preventing the coupling agent from corroding and damaging the ultrasonic probe due to its long-term presence on the surface of the ultrasonic probe. Second, when the winding shaft rotates, the dirty surface of the cleaning cloth will move away from the concave platform, and the clean surface of the cleaning cloth will be transported directly above the concave platform, so as to ensure that when the ultrasonic probe is cleaned again later, the clean surface of the cleaning cloth is wrapped around the ultrasonic probe, ultimately improving the cleaning degree of the cleaning cloth for the ultrasonic probe. Third, when applying the coupling agent to the plate, the excess coupling agent scraped off by the rubber squeegee will fall into the collection box between the first linear transport table and the second linear transport table, preventing the coupling agent from falling into the detection environment and polluting the detection environment. Description of the Drawings

[0017] Figure 1 is a schematic three-dimensional structure of the present invention Figure 1 ; Figure 2 is a schematic three-dimensional structure of the present invention Figure 2 ; Figure 3 is a schematic three-dimensional structure diagram of the flaw detection component; Figure 4 is Figure 3 the partial enlarged schematic diagram indicated by A1 in Figure 5 is a schematic three-dimensional structure of the probe cleaning component Figure 1 ; Figure 6 is Figure 5 the partial enlarged schematic diagram indicated by A2 in Figure 7 is a schematic three-dimensional structure of the probe cleaning component Figure 2 ; Figure 8 is Figure 7 the partial enlarged schematic diagram indicated by A3 in Figure 9It is a top view of the probe cleaning assembly; Figure 10 It is Figure 9 A sectional view taken along line A-A; Figure 11 It is Figure 10 A partial enlarged schematic diagram indicated by A4 in Figure 12 It is Figure 9 A sectional view taken along line B-B; Figure 13 It is Figure 12 A partial enlarged schematic diagram indicated by A5 in Figure 14 It is a side view of the probe cleaning assembly; Figure 15 It is a three-dimensional structural schematic diagram of the coating assembly; Figure 16 It is a top view of the strip-shaped nozzle; Figure 17 It is Figure 16 A sectional view taken along line C-C.

[0018] The reference numerals in the figure are: 1, flaw detection and testing assembly; 2, coating assembly; 3, probe cleaning assembly; 4, first linear transport table; 5, second linear transport table; 6, ultrasonic probe; 7, moving frame; 8, lifting seat; 9, lifting frame plate; 10, strip-shaped nozzle; 11, rubber squeegee; 12, collection box; 13, rotating plate; 14, concave platform; 15, cleaning cloth; 16, take-up reel; 17, pay-off reel; 18, support frame; 19, first slide rail; 20, first electric slider; 21, second slide rail; 22, second electric slider; 23, first slide table cylinder; 24, first support rod; 25, semi-circular clamping ring; 26, lug; 27, first limiting rod; 28, first spring; 29, first limiting nut; 30, U-shaped bracket; 31, support plate; 32, first rotating shaft; 33, rubber ring; 34, second rotating shaft; 35, first bevel gear; 36, second bevel gear; 37, driving gear; 38, guide bar; 39, first rack; 40, pressing plate; 41, second spring; 42, second support rod; 43, second limiting rod; 44, second limiting nut; 45, connecting rod; 46, strip-shaped through groove; 47, support arm; 48, third rotating shaft; 49, reversing gear; 50, rotating ring; 51, turntable; 52, ratchet teeth; 53, elastic ratchet pawl; 54, toothed ring; 55, second rack; 56, arc-shaped strip plate; 57, pressing rod; 58, pressing block; 59, third limiting rod; 60, third spring; 61, third limiting nut; 62, strip-shaped liquid storage box; 63, strip-shaped connecting shell; 64, strip-shaped nozzle; 65, second slide table cylinder; 66, liquid injection port; 67, strip-shaped spray port; 68, liquid spraying narrow groove. Specific embodiments

[0019] To further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Reference Figures 1 to 17 An ultrasonic flaw detection device for titanium alloy plates shown in the figure includes a plate transportation component, a flaw detection component 1, a coating component 2 and a probe cleaning component 3. The plate transportation component includes a first linear transportation table 4 and a second linear transportation table 5 that are spaced apart in the horizontal direction. The flaw detection component 1 includes an ultrasonic probe 6 and a three-axis displacement mechanism. The three-axis displacement mechanism includes a moving frame 7, a moving seat and a lifting seat 8. The moving frame 7 is arranged above the first linear transportation table 4. The moving seat is arranged on the moving frame 7. The lifting seat 8 is arranged on the moving seat. The ultrasonic probe 6 is elastically connected to the lifting seat 8. The coating component 2 includes a lifting frame plate 9, a strip-shaped nozzle 10 and a rubber squeegee 11. The lifting frame plate 9 is arranged on the moving frame 7 (as Figure 15 and Figure 17 shown in the figure). The strip-shaped nozzle 10 is connected to the lifting frame plate 9. The rubber squeegee 11 is connected to the strip-shaped nozzle 10. A collection box 12 is arranged between the first linear transportation table 4 and the second linear transportation table 5. The probe cleaning component 3 includes a wiping mechanism and a rotating mechanism. The rotating mechanism includes a rotating plate 13 arranged beside the first linear transportation table 4. A concave platform 14 for the ultrasonic probe 6 to insert downward is arranged on the rotating plate 13 (as Figure 5 shown in the figure). The wiping mechanism includes a cleaning cloth 15, a winding shaft 16 and a unwinding shaft 17. The winding shaft 16 and the unwinding shaft 17 are both arranged on the rotating plate 13, and the winding shaft 16 and the unwinding shaft 17 are respectively arranged on both sides of the concave platform 14. The cleaning cloth 15 is arranged on the unwinding shaft 17. One end of the cleaning cloth 15 crosses the concave platform 14 and is wound around the winding shaft 16.

[0021] In the three-axis displacement mechanism, the moving frame 7, the moving seat, and the lifting seat 8 are displaced along the Y-axis, X-axis, and Z-axis respectively. The transportation directions of the first linear transportation table 4 and the second linear transportation table 5 are both the same as that of the moving frame 7. During actual use, a material tank for storing coupling agent (not shown in the figure) is provided beside the first linear transportation table 4. The strip-shaped nozzle 10 of this device is pump-connected to the material tank. The specific detection process is as follows: Place the plate to be detected flat on the first linear transportation table 4, and transport the plate to the second linear transportation table 5 through the first linear transportation table 4. When the plate is displaced to the end of the first linear transportation table 4, the moving frame 7 drives the strip-shaped nozzle 10 to translate above the plate. During this process, the coupling agent in the material tank will be sprayed onto the top surface of the plate through the strip-shaped nozzle 10. Then, as the moving frame 7 continues to translate, the coupling agent will cover the top surface of the plate. At the same time, as the strip-shaped nozzle 10 is displaced, the rubber squeegee 11 provided on the strip-shaped nozzle 10 will scrape the coupling agent on the top surface of the plate flat, and the excess coupling agent scraped off will fall down along the plate into the collection box 12. When the top surface of the plate is covered with the coupling agent, the three-axis displacement mechanism will drive the ultrasonic probe 6 to perform flaw detection on the entire plate. During this process, the lifting seat 8 will drive the ultrasonic probe 6 to move downward and contact the top surface of the plate. After the ultrasonic flaw detection is completed, the ultrasonic probe 6 will be adhered with the coupling agent. Thereafter, it is necessary to clean the ultrasonic probe 6. The specific cleaning process is as follows: Drive the ultrasonic probe 6 to be displaced directly above the concave platform 14 through the moving frame 7 and the moving seat, and then the lifting seat 8 will drive the ultrasonic probe 6 to insert downward into the concave platform 14. During this process, the ultrasonic probe 6 will press the cleaning cloth 15 downward into the concave platform 14. When the ultrasonic probe 6 touches the bottom, the cleaning cloth 15 will wrap the ultrasonic probe 6. Thereafter, the lifting seat 8 stops descending, and the rotating plate 13 drives the concave platform 14 to rotate. At this time, the cleaning cloth 15 in the concave platform 14 will wipe off the coupling agent adhered to the ultrasonic probe 6. After the coupling agent on the ultrasonic probe 6 is wiped off, the lifting seat 8 drives the ultrasonic probe 6 to rise. When the ultrasonic probe 6 rises out of the concave platform 14, the take-up reel 16 will wind up the cleaning cloth 15, and the pay-off reel 17 will unwind the cleaning cloth 15. In this way, the dirty surface of the cleaning cloth 15 will be wound onto the take-up reel 16, and at the same time, the clean surface of the cleaning cloth 15 will be pulled from the pay-off reel 17 directly above the concave platform 14, ultimately facilitating subsequent cleaning of the ultrasonic probe 6 again.

[0022] In order to show how the moving frame 7, the moving seat, and the lifting seat 8 are displaced, the following features are set: On both sides of the first linear transport table 4, horizontally fixed support frames 18 are provided. On each support frame 18, a horizontally fixed first slide rail 19 is provided. A first electric slider 20 is slidably provided on the first slide rail 19. The moving frame 7 is horizontally arranged between the two first slide rails 19. The two ends of the moving frame 7 are respectively connected to the two first electric sliders 20. A horizontally fixed second slide rail 21 is provided on the moving frame 7. A second electric slider 22 is slidably provided on the second slide rail 21. The moving seat is a first slide table cylinder 23, and the first slide table cylinder 23 is fixedly connected to the second electric slider 22. The lifting seat 8 is fixedly connected to the output end of the first slide table cylinder 23.

[0023] The moving frame 7 slides by means of the first electric slider 20 sliding on the first slide rail 19. The first slide table cylinder 23 slides by means of the second electric slider 22 sliding on the second slide rail 21. The lifting seat 8 is lifted and lowered by means of the first slide table cylinder 23.

[0024] In order to show how the ultrasonic probe 6 is connected to the lifting seat 8, the following features are provided: On the lifting seat 8, two groups of symmetrically arranged first support rods 24 are provided. Each group of first support rods 24 is horizontal. Between the two groups of first support rods 24, two semi-circular clamping rings 25 are provided. The ultrasonic probe 6 is clamped between the two semi-circular clamping rings 25. On the outer wall of each semi-circular clamping ring 25, a lug 26 is formed. On the lug 26, a first limiting rod 27 is fixedly provided. The two first limiting rods 27 respectively correspond to the two groups of first support rods 24. Each first limiting rod 27 passes upward through the corresponding first support rod 24. A first spring 28 is sleeved on each first limiting rod 27. The two ends of the first spring 28 respectively abut against the first support rod 24 and the lug 26. A first limiting nut 29 is screwed on the end of each first limiting rod 27 extending out of the first support rod 24.

[0025] The ultrasonic probe 6 is fixed to the lifting seat 8 by means of the two semi-circular clamping rings 25. In the initial state, each first spring 28 releases elastic force to drive the corresponding semi-circular clamping ring 25 to be in a descending state. And at this time, the first limiting nut 29 provided at the upper end of the first limiting rod 27 will abut downward against the first support rod 24, so as to limit the descending stroke of the first limiting rod 27 by means of the first limiting nut 29. When ultrasonic detection is carried out, the lifting seat 8 will drive the ultrasonic probe 6 to descend. When the ultrasonic probe 6 descends to abut against the plate, the elasticity of the first spring 28 is used to ensure that the ultrasonic probe 6 can fit on the plate, and at the same time prevent the lifting seat 8 from descending excessively and causing the ultrasonic probe 6 to collide hard with the plate.

[0026] In order to show how the rotating plate 13 is installed, the following features are provided: A U-shaped bracket 30 is fixedly provided on the side of the No. 1 linear transport platform 4, a horizontal support plate 31 is fixedly provided on the top of the U-shaped bracket 30, and a No. 1 rotating shaft 32 (such as Figure 10 As shown in FIG. 1 , the first rotating shaft 32 is rotatably connected to the supporting plate 31 , and a rubber ring 33 is embedded on the inner wall of the concave platform 14 .

[0027] When the rotating plate 13 is installed on the supporting plate 31, the rotating plate 13 will rotate through the No. 1 rotating shaft 32. When the ultrasonic probe 6 is inserted downward into the recessed platform 14, the ultrasonic probe 6 will drive the rag 15 to be pressed downward into the recessed platform 14. At this time, the rag 15 will be clamped between the rubber ring 33 and the ultrasonic probe 6. The rubber ring 33 is used to increase the friction between the rag 15 and the recessed platform 14. Therefore, when the rotating plate 13 rotates, the recessed platform 14 will drive the rag 15 to wipe off the coupling agent adhered to the ultrasonic probe 6.

[0028] In order to show how the rotating plate 13 rotates, the following features are set: A horizontal second rotating shaft 34 is rotatably provided inside the U-shaped bracket 30, a first bevel gear 35 is coaxially fixedly connected to the second rotating shaft 34, a second bevel gear 36 is coaxially fixedly connected to the first rotating shaft 32, the first bevel gear 35 and the second bevel gear 36 are meshed with each other, a driving gear 37 is coaxially fixedly connected to the second rotating shaft 34, a vertical guide bar 38 is fixedly provided at the bottom of the support plate 31, a first rack 39 meshing with the driving gear 37 is slidably provided on the guide bar 38 in the vertical direction, an elastic seat sliding in the vertical direction is provided on the side of the U-shaped bracket 30, and the first rack 39 is connected to the elastic seat.

[0029] When the No. 2 electric slide block 22 drives the No. 1 slide cylinder 23 to move to the top of the rotating plate 13, the ultrasonic probe 6 corresponds to the concave platform 14, and the output end of the No. 1 slide cylinder 23 corresponds to the elastic seat. Thereafter, the No. 1 slide cylinder 23 drives the lifting seat 8 to descend, and the ultrasonic probe 6 will be inserted downward into the concave platform 14. When the ultrasonic probe 6 touches the bottom, the output end of the No. 1 slide cylinder 23 will conflict with the elastic seat downward. Thereafter, the output end of the No. 1 slide cylinder 23 continues to descend. During this process, the output end of the No. 1 slide cylinder 23 will drive the No. 1 rack 39 to descend through the elastic seat. When the No. 1 rack 39 descends, the No. 1 rack The rack 39 will drive the driving gear 37 to rotate. When the driving gear 37 rotates, the driving gear 37 will drive the second rotating shaft 34 to rotate, so that the first bevel gear 35 provided on the second rotating shaft 34 will drive the second bevel gear 36 to rotate, and finally the second bevel gear 36 will drive the rotating plate 13 to rotate through the first rotating shaft 32. When the rotating plate 13 rotates, the rotating plate 13 will drive the rag 15 in the concave platform 14 to wipe off the coupling agent adhered to the ultrasonic probe 6. When the lifting seat 8 rises, the elastic seat will release the elastic force to drive the first rack 39 to rise and reset, so that the rotating plate 13 will drive the concave platform 14 to reset to the initial state.

[0030] To show the specific structure of the elastic seat, the following features are provided: The elastic seat includes a pressing plate 40 and two second springs 41. Two symmetrically arranged second support rods 42 are fixedly provided on the outer wall of the U-shaped bracket 30 (as Figure 7 shown). Each second support rod 42 is horizontal. The pressing plate 40 is horizontally arranged above the second support rods 42. Two second limiting rods 43 are formed at the bottom of the pressing plate 40. Each second limiting rod 43 vertically penetrates through the corresponding second support rod 42. Each second spring 41 is sleeved on the corresponding second limiting rod 43. The two ends of each second spring 41 are respectively abutted against the pressing plate 40 and the second support rod 42. Second limiting nuts 44 are screwed on the ends of each second limiting rod 43 passing through the second support rods 42. A connecting rod 45 connected to the first rack 39 is fixedly provided on one of the second limiting rods 43. A strip-shaped through groove 46 for the connecting rod 45 to pass through is formed on the U-shaped bracket 30.

[0031] In the initial state, the second spring 41 releases elastic force to drive the pressing plate 40 to be in the rising state. When the ultrasonic probe 6 is inserted downward into the concave table 14, the output end of the first sliding table cylinder 23 will downwardly abut against the pressing plate 40. Thereafter, as the output end of the first sliding table cylinder 23 continuously descends, the pressing plate 40 will drive the two second limiting rods 43 to descend. In this process, one of the second limiting rods 43 will drive the first rack 39 to descend through the connecting rod 45, and finally drive the driving gear 37 to rotate through the descending first rack 39. When the output end of the first sliding table cylinder 23 rises, the second spring 41 will release elastic force to gradually drive the pressing plate 40 to rise to the initial state. In this process, the rising stroke of the second limiting rod 43 is limited by the second limiting nut 44 provided on the second limiting rod 43.

[0032] To show how the winding shaft 16 winds the dirty surface of the rag 15, the following features are provided: One end of the rotating plate 13 is formed with a horizontal support arm 47 (as Figure 6 shown). A third rotating shaft 48 is rotatably provided on the support arm 47 beside the winding shaft 16. Commutating gears 49 are coaxially fixedly connected to both the third rotating shaft 48 and the winding shaft 16, and the two commutating gears 49 are meshed with each other. A rotating ring 50 and a rotating disc 51 are coaxially provided at one end of the third rotating shaft 48 (as Figure 8As shown in the figure, the swivel ring 50 is fixedly connected to the third rotating shaft 48, the turntable 51 is rotatably connected to the third rotating shaft 48. A circle of ratchet teeth 52 is formed on one side of the turntable 51. A number of elastic ratchet claws 53 that cooperate with the ratchet teeth 52 are fixedly provided on the swivel ring 50. A toothed ring 54 is fixedly sleeved on the turntable 51. A second rack 55 that meshes with the toothed ring 54 is provided on the support arm 47. The second rack 55 slides in the vertical direction and is elastically connected to the support arm 47. The bottom of the second rack 55 is fixedly provided with an arc-shaped strip 56. A pressing rod 57 that presses on the top of the arc-shaped strip 56 is fixedly provided on the first rack 39.

[0033] In the initial state, due to the elasticity of the second spring 41, the first rack 39 will be in the rising state. At the same time, the second rack 55 is in the rising state due to its elastic connection with the support arm 47. When the output end of the first sliding table cylinder 23 presses downward on the pressing plate 40, the pressing plate 40 will drive the first rack 39 to descend. The first rack 39 will drive the arc-shaped strip 56 to descend through the pressing rod 57. In this way, the second rack 55 in the descending state will drive the turntable 51 to rotate through the toothed ring 54. At this time, a number of elastic ratchet claws 53 will slide over the ratchet teeth 52 (as Figure 8 shown in the figure), then the swivel ring 50 will not rotate following the turntable 51. When the output end of the first sliding table cylinder 23 rises, the pressing plate 40 drives the first rack 39 to rise, and the pressing rod 57 will separate from the arc-shaped strip 56. After that, when the ultrasonic probe 6 separates from the concave table 14, then the second rack 55 elastically connected to the support arm 47 will rise. The second rack 55 in the rising state will drive the turntable 51 to rotate in the reverse direction through the toothed ring 54. At this time, the elastic ratchet claws 53 will be stuck between adjacent ratchet teeth 52. In this way, the swivel ring 50 will be driven to rotate by the turntable 51. The swivel ring 50 will drive the third rotating shaft 48 to rotate. Finally, when the third rotating shaft 48 rotates, through the action of the two reversing gears 49, the winding shaft 16 will wind the rag 15 by rotating. In order to show how the second rack 55 is installed, the following features are set: A horizontally arranged pressing block 58 is fixedly provided on the second rack 55. Two symmetrically arranged third limiting rods 59 that vertically pass through the support arm 47 are formed at the bottom of the pressing block 58. A third spring 60 is sleeved on each third limiting rod 59. The two ends of the third spring 60 are respectively in contact with the pressing block 58 and the support arm 47. A third limiting nut 61 is screwed on the end of each third limiting rod 59 passing through the support arm 47.

[0034] In the initial state, the third spring 60 releases elastic force to drive the second rack 55 to rise through the pressing block 58. At this time, the third limit nut 61 provided at the end of the third limit rod 59 will abut against the support arm 47 upward, so as to limit the rising stroke of the third limit rod 59 through the third limit nut 61. After the pressing rod 57 descends to drive the second rack 55 to descend, each third spring 60 will be compressed to generate elastic force. Therefore, after the output end of the first sliding table cylinder 23 rises, the pressing rod 57 separates from the arc-shaped strip 56 upward. At this time, the third spring 60 will drive the second rack 55 to rise through elastic force. However, at this time, the ultrasonic probe 6 is still inserted into the concave table 14, so the cleaning cloth 15 will still be in a pressed state. Then once the ultrasonic probe 6 separates from the concave table 14, the second rack 55 will rise. After that, through the reversing action of the two reversing gears 49, the winding shaft 16 will wind up the cleaning cloth 15.

[0035] In order to show the specific structure of the strip-shaped nozzle 10, the following features are set: The strip-shaped nozzle 10 includes a strip-shaped liquid storage box 62, a strip-shaped connection shell 63 and a strip-shaped nozzle 64 (as Figure 15 shown). A second sliding table cylinder 65 is fixedly provided on the moving frame 7. The lifting frame plate 9 is fixed to the output end of the second sliding table cylinder 65. The strip-shaped liquid storage box 62 is horizontally fixedly connected to the lifting frame plate 9. One end of the strip-shaped liquid storage box 62 is a liquid injection port 66. The strip-shaped nozzle 64 is horizontally arranged directly below the strip-shaped liquid storage box 62. The strip-shaped connection shell 63 connects the strip-shaped nozzle 64 and the strip-shaped liquid storage box 62. A strip-shaped spray opening 67 is provided in the strip-shaped nozzle 64. A liquid spraying narrow groove 68 is provided in the strip-shaped connection shell 63. The upper end and the lower end of the liquid spraying narrow groove 68 are respectively communicated with the strip-shaped liquid storage box 62 and the strip-shaped spray opening 67.

[0036] The coupling agent is injected into the strip-shaped liquid storage box 62 through the liquid injection port 66. Since the coupling agent has a certain viscosity, when the coupling agent is injected into the strip-shaped liquid storage box 62, the coupling agent will not flow downward along the liquid spraying narrow groove 68. Only when the strip-shaped liquid storage box 62 is filled with the coupling agent, through the extrusion of the subsequent coupling agent, the coupling agent in the strip-shaped liquid storage box 62 will flow downward along the liquid spraying narrow groove 68. Finally, the coupling agent will flow to the top surface of the plate through the strip-shaped spray opening 67.

[0037] Working principle: In the three-axis displacement mechanism, the moving frame 7, the moving seat, and the lifting seat 8 are displaced along the Y-axis, X-axis, and Z-axis respectively. The transportation directions of the first linear transportation platform 4 and the second linear transportation platform 5 are both the same as that of the moving frame 7. During actual use, a material tank for storing coupling agent (not shown in the figure) is provided beside the first linear transportation platform 4. The strip-shaped nozzle 10 of this device is pump-connected to the material tank. The specific detection process is as follows: Place the plate to be detected flat on the first linear transportation platform 4, and transport the plate to the second linear transportation platform 5 through the first linear transportation platform 4. When the plate is displaced to the end of the first linear transportation platform 4, the moving frame 7 drives the strip-shaped nozzle 10 to translate above the plate. During this process, the coupling agent in the material tank will be sprayed onto the top surface of the plate through the strip-shaped nozzle 10. Then, as the moving frame 7 continues to translate, the coupling agent will cover the top surface of the plate. At the same time, as the strip-shaped nozzle 10 is displaced, the rubber squeegee 11 provided on the strip-shaped nozzle 10 will scrape the coupling agent on the top surface of the plate flat, and the excess scraped coupling agent will fall down along the plate into the collection box 12. When the top surface of the plate is covered with coupling agent, the three-axis displacement mechanism will drive the ultrasonic probe 6 to perform flaw detection on the entire plate. During this process, the lifting seat 8 will drive the ultrasonic probe 6 to contact the top surface of the plate downward. After the ultrasonic flaw detection is completed, the ultrasonic probe 6 will be adhered with coupling agent. Then, it is necessary to clean the ultrasonic probe 6. The specific cleaning process is as follows: Drive the ultrasonic probe 6 to be displaced to directly above the concave platform 14 through the moving frame 7 and the moving seat, and then the lifting seat 8 will drive the ultrasonic probe 6 to insert downward into the concave platform 14. During this process, the ultrasonic probe 6 will press the cleaning cloth 15 downward into the concave platform 14. When the ultrasonic probe 6 touches the bottom, the cleaning cloth 15 will cover the ultrasonic probe 6. Then the lifting seat 8 stops descending, and the rotating plate 13 drives the concave platform 14 to rotate. At this time, the cleaning cloth 15 in the concave platform 14 will wipe off the coupling agent adhered to the ultrasonic probe 6. After the coupling agent on the ultrasonic probe 6 is wiped off, the lifting seat 8 drives the ultrasonic probe 6 to rise. When the ultrasonic probe 6 rises out of the concave platform 14, the take-up reel 16 will wind up the cleaning cloth 15, and the pay-off reel 17 will unwind the cleaning cloth 15. In this way, the dirty surface of the cleaning cloth 15 will be wound onto the take-up reel 16, and at the same time, the clean surface of the cleaning cloth 15 will be pulled from the pay-off reel 17 to directly above the concave platform 14, ultimately facilitating subsequent cleaning of the ultrasonic probe 6 again.

[0038] The above embodiments only represent one or several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent should be subject to the appended claims.

Claims

1. An ultrasonic flaw detection device for titanium alloy plates, characterized in that: It includes a plate transport component, a flaw detection component, a coating component and a probe cleaning component. The plate transport component includes a No. 1 linear transport platform and a No. 2 linear transport platform spaced apart in the horizontal direction. The flaw detection component includes an ultrasonic probe and a three-axis displacement mechanism. The three-axis displacement mechanism includes a mobile frame, a mobile seat and a lifting seat. The mobile frame is arranged above the No. 1 linear transport platform, the mobile seat is arranged on the mobile frame, the lifting seat is arranged on the mobile seat, the ultrasonic probe is elastically connected to the lifting seat, the coating component includes a lifting frame plate, a strip nozzle and a rubber scraper, and the lifting frame plate is arranged on the mobile frame. The strip nozzle is connected to the lifting frame plate, the rubber scraper is connected to the strip nozzle, a collecting box is provided between the No. 1 linear transport platform and the No. 2 linear transport platform, the probe cleaning assembly includes a wiping mechanism and a rotating mechanism, the rotating mechanism includes a rotating plate arranged beside the No. 1 linear transport platform, the rotating plate is provided with a recessed platform for the ultrasonic probe to be inserted downward, the wiping mechanism includes a rag, a winding shaft and an unwinding shaft, both of which are arranged on the rotating plate, and the winding shaft and the unwinding shaft are respectively arranged on both sides of the recessed platform, the rag is arranged on the unwinding shaft, and one end of the rag crosses the recessed platform and is wound around the winding shaft.

2. The ultrasonic flaw detection device for titanium alloy plates according to claim 1, characterized in that: Horizontal support frames are fixedly provided on both sides of the No. 1 linear transport platform, and a horizontal No. 1 slide rail is fixedly provided on each support frame, and a No. 1 electric slide block is slidably provided on the No. 1 slide rail. The moving frame is horizontally arranged between the two No. 1 slide rails, and the two ends of the moving frame are respectively connected to the two No. 1 electric slide blocks. A horizontal No. 2 slide rail is fixedly provided on the moving frame, and a No. 2 electric slide block is slidably provided on the No. 2 slide rail. The moving seat is a No. 1 slide cylinder, and the No. 1 slide cylinder is fixedly connected to the No. 2 electric slide block, and the lifting seat is fixedly connected to the output end of the No. 1 slide cylinder.

3. The ultrasonic flaw detection device for titanium alloy plates according to claim 1, characterized in that: Two groups of symmetrical No. 1 support rods are provided on the lifting seat, and each group of No. 1 support rods is horizontal. Two semicircular clamping rings are provided between the two groups of No. 1 support rods, and the ultrasonic probe is clamped between the two semicircular clamping rings. A lug is formed on the outer wall of each semicircular clamping ring, and a No. 1 limiting rod is fixed on the lug. The two No. 1 limiting rods correspond to the two groups of No. 1 support rods respectively, and each No. 1 limiting rod passes through the corresponding No. 1 support rod upward. A No. 1 spring is sleeved on each No. 1 limiting rod, and the two ends of the No. 1 spring respectively conflict with the No. 1 support rod and the lug, and a No. 1 limiting nut is screwed on the end of each No. 1 limiting rod passing through the No. 1 support rod.

4. The ultrasonic flaw detection device for titanium alloy plates according to claim 1, characterized in that: A U-shaped bracket is fixed on the side of the No. 1 linear transport platform, a horizontal support plate is fixed on the top of the U-shaped bracket, a No. 1 rotating shaft passing vertically downward through the support plate is formed at the bottom of the rotating plate, and the No. 1 rotating shaft is rotatably connected to the support plate, and a rubber ring is embedded on the inner wall of the concave platform.

5. The ultrasonic flaw detection device for titanium alloy plates according to claim 4, characterized in that: A horizontal No. 2 rotating shaft is rotatably provided in the U-shaped bracket, a No. 1 bevel gear is coaxially fixedly connected to the No. 2 rotating shaft, a No. 2 bevel gear is coaxially fixedly connected to the No. 1 rotating shaft, the No. 1 bevel gear is meshed with the No. 2 bevel gear, a driving gear is coaxially fixedly connected to the No. 2 rotating shaft, a vertical guide bar is fixedly provided at the bottom of the support plate, a No. 1 rack meshed with the driving gear is provided on the guide bar for sliding in the vertical direction, an elastic seat sliding in the vertical direction is provided on the side of the U-shaped bracket, and the No. 1 rack is connected to the elastic seat.

6. The ultrasonic flaw detection device for titanium alloy plates according to claim 5, characterized in that: The elastic seat includes a pressure plate and two No. 2 springs. Two symmetrical No. 2 support rods are fixed on the outer wall of the U-shaped bracket. Each No. 2 support rod is horizontal. The pressure plate is horizontally arranged above the No. 2 support rod. Two No. 2 limit rods are formed on the bottom of the pressure plate. Each No. 2 limit rod vertically passes through the corresponding No. 2 support rod. Each No. 2 spring is sleeved on the corresponding No. 2 limit rod. The two ends of each No. 2 spring are respectively in conflict with the pressure plate and the No. 2 support rod. A No. 2 limit nut is screwed on the end of each No. 2 limit rod passing through the No. 2 support rod. A connecting rod connected to the No. 1 rack is fixed on one of the No. 2 limit rods. A strip through groove for the connecting rod to pass through is opened on the U-shaped bracket.

7. The ultrasonic flaw detection device for titanium alloy plates according to claim 5, characterized in that: A horizontal support arm is formed at one end of the rotating plate, and a No. 3 rotating shaft located next to the winding shaft is rotatably provided on the support arm. A reversing gear is coaxially fixedly connected to the No. 3 rotating shaft and the winding shaft, and the two reversing gears are meshed with each other. A swivel ring and a turntable are coaxially provided at one end of the No. 3 rotating shaft, the swivel ring is fixedly connected to the No. 3 rotating shaft, and the turntable is rotatably connected to the No. 3 rotating shaft, a circle of ratchet teeth is formed on one side of the turntable, a plurality of elastic pawls matching with the ratchet teeth are fixedly provided on the swivel ring, a gear ring is fixedly provided on the turntable, a No. 2 rack meshing with the gear ring is provided on the support arm, the No. 2 rack slides in a vertical direction, and the No. 2 rack is elastically connected to the support arm, an arc-shaped strip plate is fixedly provided at the bottom of the No. 2 rack, and a pressure rod pressed on the top of the arc-shaped strip plate is fixedly provided on the No. 1 rack.

8. The ultrasonic flaw detection device for titanium alloy plates according to claim 7, characterized in that: A horizontal pressure block is fixed on the No. 2 rack, and two No. 3 limit rods are formed at the bottom of the pressure block, which are symmetrical and vertically pass through the support arm downward. Each No. 3 limit rod is sleeved with a No. 3 spring, and the two ends of the No. 3 spring are respectively in conflict with the pressure block and the support arm, and a No. 3 limit nut is screwed on the end of each No. 3 limit rod passing through the support arm.

9. The ultrasonic flaw detection device for titanium alloy plates according to claim 1, characterized in that: The strip nozzle includes a strip liquid storage box, a strip connecting shell and a strip nozzle. A No. 2 slide cylinder is fixed on the movable frame. The lifting frame plate is fixed on the output end of the No. 2 slide cylinder. The strip liquid storage box is horizontally fixed to the lifting frame plate. One end of the strip liquid storage box has a liquid injection port. The strip nozzle is horizontally arranged directly below the strip liquid storage box. The strip connecting shell connects the strip nozzle and the strip liquid storage box. A strip nozzle is provided in the strip nozzle. A narrow liquid spraying groove is provided in the strip connecting shell. The upper and lower ends of the narrow liquid spraying groove are respectively connected to the strip liquid storage box and the strip nozzle.

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