Ultrasonic eddy current combined automatic detection equipment for stainless steel seamless steel pipe

Abstract

The application discloses a kind of stainless steel seamless steel pipe ultrasonic eddy current combined automatic detection equipment, it is related to steel pipe automatic flaw detection technical field, including U-shaped seat, both sides of U-shaped seat are fixedly installed with electric push rod, the output end of electric push rod is fixed with connecting frame, the side of connecting frame away from electric push rod is equipped with fixed component, steel pipe body is equipped between two groups of fixed components, the outside of steel pipe body is equipped with moving plate, the top of steel pipe body is equipped with crossbar, the cooperation of electric push rod, connecting frame, fixed component, moving plate, crossbar, detection component, rotating mechanism first drive mechanism and second drive mechanism of the present application can automatically take along eddy current flaw detector and ultrasonic flaw detector along the pipe outer wall movement rotation is completed to the detection of steel pipe quality, operation is very convenient, labor intensity is small, especially in along annular rotation one circle process will not appear movement route skew, the detection of stainless steel seamless steel pipe is more accurate and reliable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automatic flaw detection of steel pipes, in particular to an ultrasonic eddy current combined automatic detection equipment for stainless seamless steel pipes. BACKGROUND

[0002] A stainless seamless pipe is a long strip steel material with a hollow section and no joint on the periphery. It is a steel pipe resistant to air, steam, water and other weak corrosive media, and acid, alkali and salt chemical etching media. It is also known as stainless acid-resistant steel pipe. The thicker the wall thickness of the product, the more economical and practical it is. The thinner the wall thickness, the higher the processing cost will be.

[0003] At present, the existing seamless steel pipe manufacturing technology cannot completely eliminate the generation of defects. Cracks, folds, pores and inclusions are common defects in steel pipes. Therefore, flaw detection before the steel pipe leaves the factory is particularly important. The most effective non-destructive testing method for seamless steel pipes is eddy current flaw detection and ultrasonic flaw detection. The former is used for detecting surface and near-surface defects of the steel pipe, and the latter is used for detecting internal defects of the steel pipe. The traditional detection method is for the staff to hold the eddy current flaw detection instrument and the ultrasonic flaw detection instrument respectively and move along the outer wall of the pipe to complete the detection of the quality of the steel pipe. This method is very inconvenient to operate and has high labor intensity. In particular, during the rotation along the ring, the movement route is easily skewed, which leads to inaccurate detection. Therefore, we propose an ultrasonic eddy current combined automatic detection equipment for stainless seamless steel pipes. SUMMARY

[0004] The purpose of the present application is to provide an ultrasonic eddy current combined automatic detection equipment for stainless seamless steel pipes to solve the problems raised in the background.

[0005] To achieve the above purpose, the present application provides the following technical scheme: an ultrasonic eddy current combined automatic detection equipment for stainless seamless steel pipes, comprising a U-shaped seat, two sides of the U-shaped seat are fixedly provided with electric push rods, the output ends of the electric push rods are fixedly provided with connecting frames, one side of the connecting frame away from the electric push rod is provided with a fixing assembly, a steel pipe body is arranged between the two fixing assemblies, a moving plate is arranged on the outer side of the steel pipe body, a horizontal rod is arranged in parallel above the top of the steel pipe body, the horizontal rod is in the shape of "D", and the two ends of the horizontal rod are fixedly connected with the two sides of the U-shaped seat, a detection assembly for detecting the outer surface defects of the steel pipe body is arranged on one side of the moving plate, a rotating mechanism for rotating the detection assembly is rotatably connected to the other side of the moving plate through a bearing, a first driving mechanism for driving the moving plate to move in parallel is drivingly connected to one side of the horizontal rod, and a second driving mechanism for driving the rotating mechanism to rotate is arranged on the side of the moving plate away from the first driving mechanism.

[0006] Preferably, the detection assembly comprises a support cylinder rotatably connected with the moving plate through a bearing, eddy current detectors and ultrasonic detectors are symmetrically installed on two sides of the support cylinder, the eddy current detectors and the ultrasonic detectors are electrically connected with detection probes through data lines, one side of the support cylinder is provided with an adjusting assembly for adjusting the distance between the detection probes and the outer surface of the steel pipe body, the eddy current detectors and the ultrasonic detectors are driven to rotate on the outer side of the steel pipe body by the support cylinder, so that the rotation detection of the outer surface defects of the steel pipe body is facilitated.

[0007] Preferably, the adjusting assembly comprises a first motor, a first spur gear, a first rack, a connecting rod and a first mounting plate, one end of the first motor is fixedly connected with the support cylinder through the first mounting plate, the first spur gear is fixed on the output end of the first motor, the first rack is in engagement with the first spur gear and is slidably connected with the outer side of the support cylinder, the detection probes are fixedly connected with the first rack through the connecting rod, the distance between the detection probes and the outer surface of the steel pipe body can be intelligently adjusted through the adjusting assembly, so that the steel pipe bodies of different sizes can be detected.

[0008] Preferably, the rotating mechanism comprises a second spur gear, a third spur gear and a driving shaft, the second spur gear is fixedly sleeved on the outer side of the support cylinder, the third spur gear is in engagement with the top of the second spur gear, one end of the driving shaft is fixedly sleeved with the middle hole of the third spur gear, the outer side of the driving shaft is rotatably connected with the moving plate through a bearing, the output end of the second driving mechanism is in transmission connection with the driving shaft, and the first driving mechanism is arranged above the third spur gear, so that the support cylinder can be driven to rotate through the rotating mechanism.

[0009] Preferably, the first driving mechanism comprises a second motor, a first worm, a first worm wheel, a first shaft, a fourth spur gear, a first U-shaped plate and a T-shaped plate, the second motor is fixedly connected with the moving plate through the T-shaped plate, the first worm is fixedly connected with the output end of the second motor, the first worm is rotatably connected with the moving plate through a bearing seat, the first worm is in engagement with the first worm wheel, the first worm wheel is fixed on the top end of the first shaft, the fourth spur gear is fixedly sleeved on the outer side of the first shaft, the bottom end of the first shaft is rotatably connected with the first U-shaped plate through a bearing, one end of the first U-shaped plate is fixedly connected with the moving plate, a plurality of second racks in engagement with the fourth spur gear are fixed on one side of the cross rod, and two sliding members are symmetrically fixed on the side of the moving plate close to the cross rod.

[0010] Preferably, the sliding piece comprises a limiting roller, the limiting roller is fixedly connected with the moving plate through a fixing rod, the top and bottom of the cross bar are provided with limiting grooves, and the limiting roller is rotatably connected in the limiting grooves.

[0011] Preferably, the second driving mechanism comprises a third motor, a second worm, a second worm wheel, a second shaft, a first bevel gear, a second bevel gear and a second U-shaped plate, the third motor is fixedly connected with the moving plate through the T-shaped plate, the second worm is fixedly connected with the output end of the third motor, the second worm is rotatably connected with the moving plate through a bearing seat, the second worm and the second worm wheel are engaged, and the second worm wheel is fixed at the top end of the second shaft, the middle part of the second shaft is rotatably connected with the second U-shaped plate through a bearing, one end of the second U-shaped plate is fixedly connected with the moving plate, the first bevel gear is fixed at the bottom end of the second shaft, the second bevel gear is fixed at one end of the drive shaft away from the third spur gear, the first bevel gear is engaged with the second bevel gear, and the second driving mechanism can provide power for the rotating mechanism.

[0012] Preferably, the fixing assembly comprises a circular plate fixedly connected with the connecting frame, a transmission part is installed on one side of the circular plate close to the connecting frame, four limiting plates are fixed in an annular array on the other side of the circular plate, screw cylinders are rotatably connected in the interiors of the four limiting plates through bearings, screw columns are screw-connected to the interiors of the screw cylinders, L-shaped rods are fixed to one ends of the screw columns, inner supporting rods are fixed to one ends of the L-shaped rods, and the output end of the transmission part is in transmission connection with the screw cylinders. The fixing assembly can fix the two ends of the steel pipe body.

[0013] Preferably, the transmission part comprises a fourth motor, a second mounting plate, a sun gear, planetary gears, a transmission shaft, a third bevel gear and a fourth bevel gear, the fourth motor is fixedly connected with the circular plate through the second mounting plate, the sun gear is fixedly sleeved with the output end of the fourth motor, the planetary gears are provided with four, the four planetary gears are engaged in an annular array on the outer side of the sun gear, the transmission shaft is rotatably connected with the circular plate through a bearing, the third bevel gear is fixed at one end of the transmission shaft away from the planetary gears, the fourth bevel gear is fixedly sleeved on the outer side of the screw cylinder and engaged with the third bevel gear, and the transmission part can facilitate the control of the simultaneous movement of the four inner supporting rods to support the inner sides of the end portions of the steel pipe body.

[0014] Preferably, the outer circumference of the circular plate is fixed with a fixed plate, a sliding groove is formed in the fixed plate, a sliding rod is slidably connected in the sliding groove, one end of the sliding rod is fixedly connected with the L-shaped rod through a fixed rod, and the movement of the L-shaped rod is more stable through the sliding groove and the sliding rod.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] The present application can automatically move and rotate the eddy current flaw detector and the ultrasonic flaw detector along the outer wall of the pipeline to detect the quality of the steel pipe through the cooperation of the electric push rod, the connecting frame, the fixing assembly, the moving plate, the horizontal rod, the detection assembly, the rotating mechanism, the first driving mechanism and the second driving mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0018] Figure 2 It is a schematic diagram of the local structure of the present application;

[0019] Figure 3 It is a schematic diagram of the detection assembly structure of the present application;

[0020] Figure 4 It is Figure 3 It is an enlarged view of area A in the figure;

[0021] Figure 5 It is a schematic diagram of the rotating mechanism structure of the present application;

[0022] Figure 6 It is a schematic diagram of the first driving mechanism structure of the present application;

[0023] Figure 7 It is a schematic diagram of the sliding member structure of the present application;

[0024] Figure 8 It is a schematic diagram of the second driving member structure of the present application;

[0025] Figure 9 It is a schematic diagram of the fixing assembly structure of the present application;

[0026] Figure 10 It is a schematic diagram of the transmission member structure of the present application.

[0027] In the figure: 1-U type seat; 2-electric push rod; 3-connection frame; 4-fixing assembly; 5-steel pipe body; 6-moving plate; 7-cross bar; 8-detection assembly; 9-rotation mechanism; 10-first driving mechanism; 11-second driving mechanism; 12-supporting cylinder; 13- eddy current flaw detector; 14-ultrasonic flaw detector; 15-detection probe; 16-adjusting assembly; 17-first motor; 18-first spur gear; 19-first rack; 20-connection rod; 21-first mounting plate; 22-second spur gear; 23-third spur gear; 24-driving shaft; 25-second motor; 26-first worm; 27-first worm wheel; 28-first shaft; 29-fourth spur gear; 30-first U type plate; 31-T type plate; 32-second rack; 33-sliding piece; 34-limiting roller; 35-limiting groove; 36-third motor; 37-second worm; 38-second worm wheel; 39-second shaft; 40-first bevel gear; 41-second bevel gear; 42-second U type plate; 43-circular plate; 44-transmission piece; 45-limiting plate; 46-threaded cylinder; 47-threaded column; 48-L type rod; 49-inner supporting rod; 50-fourth motor; 51-second mounting plate; 52-sun gear; 53-planetary gear; 54-transmission shaft; 55-third bevel gear; 56-fourth bevel gear; 57-fixing plate; 58-sliding groove; 59-sliding rod. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0029] Embodiment 1

[0030] As Figure 1 and Figure 2As shown in the figure, an ultrasonic eddy current combined automatic inspection device for seamless stainless steel pipes includes a U-shaped base 1. Electric push rods 2 are fixedly installed on both sides of the U-shaped base 1. A connecting frame 3 is fixed to the output end of the electric push rod 2. A fixing component 4 is provided on the side of the connecting frame 3 away from the electric push rod 2. A steel pipe body 5 is located between the two fixing components 4. A movable plate 6 is fitted around the outside of the steel pipe body 5. A horizontal bar 7, in a "D" shape, is arranged parallel to the top of the steel pipe body 5, and its two ends are fixedly connected to both sides of the U-shaped base 1. A detection component 8 for detecting defects on the outer surface of the steel pipe body 5 is installed on one side of the movable plate 6. A rotating mechanism for rotating the detection component 8 is rotatably connected to the other side of the movable plate 6 via a bearing. 9. A first drive mechanism 10 for driving the moving plate 6 to move in parallel is connected to one side of the crossbar 7. A second drive mechanism 11 for driving the rotating mechanism 9 to rotate is installed on the side of the moving plate 6 away from the first drive mechanism 10. Through the cooperation of the designed electric push rod 2, connecting frame 3, fixing component 4, moving plate 6, crossbar 7, detection component 8, rotating mechanism 9, first drive mechanism 10 and second drive mechanism 11, the eddy current flaw detector 13 and ultrasonic flaw detector 14 can be automatically moved and rotated along the outer wall of the pipe to complete the inspection of the steel pipe quality. This method is very convenient to operate and has low labor intensity. In particular, there will be no skew in the movement path during the rotation around the circle, making the inspection of stainless steel seamless steel pipes more accurate and reliable.

[0031] Among them, such as Figure 2 and Figure 3 As shown, in order to realize the combined ultrasonic and eddy current testing, the testing component 8 includes a support cylinder 12 rotatably connected to the moving plate 6 via a bearing. Eddy current flaw detector 13 and ultrasonic flaw detector 14 are symmetrically installed on both sides of the support cylinder 12. The eddy current flaw detector 13 is preferably the NORTEC-600 model, and the ultrasonic flaw detector 14 is preferably the HK830 model. Both the eddy current flaw detector 13 and the ultrasonic flaw detector 14 are electrically connected to the detection probe 15 via a data cable. An adjustment component 16 for adjusting the distance between the detection probe 15 and the outer surface of the steel pipe body 5 is installed on one side of the support cylinder 12. The support cylinder 12 drives the eddy current flaw detector 13 and the ultrasonic flaw detector 14 to rotate on the outside of the steel pipe body 5, thereby facilitating the automatic rotational detection of defects on the outer surface of the steel pipe body 5.

[0032] At the same time, such as Figure 2 and Figure 5As shown, in order to realize the rotation of the support cylinder 12, the rotating mechanism 9 comprises a second spur gear 22, a third spur gear 23 and a driving shaft 24, the second spur gear 22 is fixedly sleeved on the outer side of the support cylinder 12, the third spur gear 23 is engaged with the top of the second spur gear 22, one end of the driving shaft 24 is fixedly sleeved with the middle hole of the third spur gear 23, the outer side of the driving shaft 24 is rotatably connected with the moving plate 6 through a bearing, the output end of the second driving mechanism 11 is drivingly connected with the driving shaft 24, and the first driving mechanism 10 is arranged above the third spur gear 23. The rotating mechanism 9 can conveniently drive the support cylinder 12 to rotate.

[0033] In addition, as shown in Figure 2 and Figure 6 shown, in order to realize the horizontal movement of the moving plate 6, the first driving mechanism 10 comprises a second motor 25, a first worm 26, a first worm gear 27, a first shaft 28, a fourth spur gear 29, a first U-shaped plate 30 and a T-shaped plate 31, the second motor 25 is fixedly connected with the moving plate 6 through the T-shaped plate 31, the first worm 26 is fixedly connected with the output end of the second motor 25, the first worm 26 is rotatably connected with the moving plate 6 through a bearing seat, the first worm 26 and the first worm gear 27 are engaged, and the first worm gear 27 is fixed at the top end of the first shaft 28, the fourth spur gear 29 is fixedly sleeved on the outer side of the first shaft 28, the bottom end of the first shaft 28 is rotatably connected with the first U-shaped plate 30 through a bearing, one end of the first U-shaped plate 30 is fixedly connected with the moving plate 6, a plurality of second racks 32 engaged with the fourth spur gear 29 are fixed on one side of the cross rod 7, and two sliding members 33 are fixedly arranged on the side of the moving plate 6 close to the cross rod 7. The first driving mechanism 10 can drive the moving plate 6 to move, and the detection position of the detection assembly 8 can be changed in real time.

[0034] Meanwhile, as shown in Figure 2 and Figure 7 shown, in order to limit the moving plate 6, the sliding member 33 comprises a limiting roller 34, the limiting roller 34 is fixedly connected with the moving plate 6 through a fixed rod, limiting grooves 35 are formed in the top and bottom of the cross rod 7, and the limiting roller 34 is rotatably connected in the limiting groove 35. Through the sliding member 33, the moving plate 6 can move left and right more stably and reliably without shaking.

[0035] In addition, as shown in Figure 2 and Figure 8As shown, in order to drive the rotating mechanism 9 to rotate, the second driving mechanism 11 comprises a third motor 36, a second worm 37, a second worm wheel 38, a second shaft 39, a first bevel gear 40, a second bevel gear 41 and a second U-shaped plate 42, the third motor 36 is fixedly connected with the moving plate 6 through the T-shaped plate 31, the second worm 37 is fixedly connected with the output end of the third motor 36, the second worm 37 is rotatably connected with the moving plate 6 through a bearing seat, the second worm 37 and the second worm wheel 38 are engaged, and the second worm wheel 38 is fixed at the top end of the second shaft 39, the middle part of the second shaft 39 is rotatably connected with the second U-shaped plate 42 through a bearing, one end of the second U-shaped plate 42 is fixedly connected with the moving plate 6, the first bevel gear 40 is fixed at the bottom end of the second shaft 39, the second bevel gear 41 is fixed at one end of the drive shaft 24 away from the third spur gear 23, the first bevel gear 40 is engaged with the second bevel gear 41, and the second driving mechanism 11 can provide power for the rotating mechanism 9.

[0036] When the steel pipe body 5 is detected: first, the steel pipe body 5 to be detected is placed between the U-shaped seats 1, and the two ends of the steel pipe body 5 are fixed by the fixing assembly 4, then the third motor 36 is started to rotate, the third motor 36 drives the second worm 37 to rotate, the second worm 37 drives the second worm wheel 38 to rotate, the second worm wheel 38 drives the second shaft 39 to rotate, the second shaft 39 drives the first bevel gear 40 to rotate, the first bevel gear 40 drives the second bevel gear 41 to rotate, the second bevel gear 41 drives the drive shaft 24 to rotate, the drive shaft 24 drives the third spur gear 23 to rotate, the third spur gear 23 drives the second spur gear 22 to rotate, the second spur gear 22 drives the support cylinder 12 to rotate, and the support cylinder 12 drives the eddy current flaw detector 13 and the ultrasonic flaw detector 14 to rotate, so that the two detection probes 15 rotate to detect the defects on the outer surface of the steel pipe body 5, ultrasonic and eddy current combined detection is realized, after one rotation, the third motor 36 is stopped, the second motor 25 is started to work, the second motor 25 drives the first worm 26 to rotate, the first worm 26 drives the first worm wheel 27 to rotate, the first worm wheel 27 drives the first shaft 28 to rotate, the first shaft 28 drives the fourth spur gear 29 to rotate, the engagement between the fourth spur gear 29 and the second rack 32 drives the moving plate 6 to move a distance in parallel on one side of the cross rod 7, then the second motor 25 is stopped, and the third motor 36 is started to work, so as to detect the surface of the steel pipe body 5 at the next position, and the above process is repeated to automatically detect multiple positions on the surface of the steel pipe body 5.

[0037] Example 2

[0038] As Figure 3 and Figure 4As shown, this embodiment further illustrates Example 1. The detection component 8 in the figure includes a support cylinder 12 rotatably connected to the moving plate 6 via bearings. Eddy current flaw detectors 13 and ultrasonic flaw detectors 14 are symmetrically mounted on both sides of the support cylinder 12. Both the eddy current flaw detectors 13 and ultrasonic flaw detectors 14 are electrically connected to detection probes 15 via data cables. An adjustment component 16 for adjusting the distance between the detection probes 15 and the outer surface of the steel pipe body 5 is installed on one side of the support cylinder 12. The adjustment component 16 includes a first motor 17, a first spur gear 18, and a first rack. 19. Connecting rod 20 and first mounting plate 21. First motor 17 is fixedly connected to one end of support cylinder 12 through first mounting plate 21. First spur gear 18 is fixed to the output end of first motor 17. First rack 19 meshes with first spur gear 18 and first rack 19 is slidably connected to the outside of support cylinder 12. Detection probe 15 is fixedly connected to first rack 19 through connecting rod 20. The distance between detection probe 15 and outer surface of steel pipe body 5 can be intelligently adjusted by adjusting component 16, thereby facilitating the detection of steel pipe body 5 of different sizes.

[0039] In this embodiment: by starting the first motor 17, the first motor 17 drives the first spur gear 18 to rotate, the first spur gear 18 drives the first rack 19 to move, thereby driving the detection probe 15 to move closer to the surface of the steel pipe body 5, thereby automatically controlling the distance between the detection probe 15 and the surface of the steel pipe body 5, and detecting steel pipe bodies 5 of different sizes.

[0040] Example 3

[0041] like Figure 9 and Figure 10 As shown, this embodiment further illustrates Example 1. The fixing component 4 in the figure includes a circular plate 43 fixedly connected to the connecting frame 3. A transmission component 44 is installed on the side of the circular plate 43 near the connecting frame 3. Four limiting plates 45 are fixed in a circular array on the other side of the circular plate 43. The interior of each of the four limiting plates 45 is rotatably connected to a threaded cylinder 46 via a bearing. A threaded post 47 is threadedly connected to the inner side of the threaded cylinder 46. An L-shaped rod 48 is fixed to one end of the threaded post 47. An inner support rod 49 is fixed to one end of the L-shaped rod 48. The output end of the transmission component 44 is connected to the threaded cylinder 46. A fixing plate 57 is fixed to the outer circumference of the circular plate 43. A sliding groove 58 is provided on the fixing plate 57. A sliding rod 59 is slidably connected in the sliding groove 58. One end of the sliding rod 59 is fixedly connected to the L-shaped rod 48 via a fixing rod. The fixing component 4 can fix both ends of the steel pipe body 5.

[0042] Among them, such as Figure 10As shown, in order to realize the simultaneous rotation of the four threaded barrels 46, the transmission member 44 comprises a fourth motor 50, a second mounting plate 51, a sun gear 52, four planetary gears 53, a transmission shaft 54, a third bevel gear 55 and a fourth bevel gear 56, the fourth motor 50 is fixedly connected with the circular plate 43 through the second mounting plate 51, the sun gear 52 is fixedly sleeved with the output end of the fourth motor 50, the four planetary gears 53 are annularly arranged and meshed on the outside of the sun gear 52, the transmission shaft 54 is rotatably connected with the circular plate 43 through a bearing, the third bevel gear 55 is fixed on one end of the transmission shaft 54 away from the planetary gears 53, and the fourth bevel gear 56 is fixedly sleeved on the outside of the threaded barrel 46 and is in mesh with the third bevel gear 55, so that the four inner support rods 49 can be conveniently controlled to move simultaneously to support the inner side of the end of the steel pipe body 5 through the transmission member 44.

[0043] When the steel pipe body 5 is fixed: first, the steel pipe body 5 is placed between the U-shaped seats 1, the multiple inner support rods 49 are stretched into the inside of the steel pipe body 5 by starting the electric push rods 2 on both sides, then the fourth motor 50 is started, the fourth motor 50 drives the sun gear 52 to rotate, the sun gear 52 drives the four planetary gears 53 to rotate, the four planetary gears 53 drive the four transmission shafts 54 to rotate, the transmission shaft 54 drives the third bevel gear 55 to rotate, the third bevel gear 55 drives the fourth bevel gear 56 to rotate, the fourth bevel gear 56 drives the threaded barrel 46 to rotate, the threaded barrel 46 drives the threaded column 47 to move, the threaded column 47 drives the inner support rod 49 to move, so that the four inner support rods 49 move simultaneously and have a tendency to expand outward, thereby supporting the inner side of the end of the steel pipe body 5, and then fixing the two ends of the steel pipe body 5.

[0044] In the scheme, the first motor 17, the second motor 25, the third motor 36 and the fourth motor 50 are all preferably Y80M1-2 type, the power supply interface of the motor is connected with the power supply system through a switch, the motor operation circuit is a conventional motor forward and reverse rotation control program, and the circuit operation is a conventional circuit. The circuit and control involved in the scheme are prior art, and will not be described in detail here.

[0045] It should be noted that, in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0046] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. An automatic ultrasonic eddy current combined testing device for seamless stainless steel pipes, comprising a U-shaped base (1), characterized in that: Electric push rods (2) are fixedly installed on both sides of the U-shaped seat (1). A connecting frame (3) is fixed to the output end of the electric push rod (2). A fixing component (4) is provided on the side of the connecting frame (3) away from the electric push rod (2). A steel pipe body (5) is provided between the two sets of fixing components (4). A movable plate (6) is sleeved on the outside of the steel pipe body (5). A crossbar (7) is arranged parallel above the top of the steel pipe body (5). The crossbar (7) is "D" shaped and its two ends are fixedly connected to the two sides of the U-shaped seat (1). A detection component (8) for detecting defects on the outer surface of the steel pipe body (5) is installed on one side of the moving plate (6). A rotating mechanism (9) for rotating the detection component (8) is rotatably connected to the other side of the moving plate (6) via a bearing. A first driving mechanism (10) for driving the moving plate (6) to move in parallel is connected to one side of the crossbar (7). A second driving mechanism (11) for driving the rotating mechanism (9) to rotate is installed on the side of the moving plate (6) away from the first driving mechanism (10). The detection component (8) includes a support cylinder (12) rotatably connected to the movable plate (6) via a bearing. An eddy current flaw detector (13) and an ultrasonic flaw detector (14) are symmetrically installed on both sides of the support cylinder (12). Both the eddy current flaw detector (13) and the ultrasonic flaw detector (14) are electrically connected to a detection probe (15) via a data cable. An adjustment component (16) for adjusting the distance between the detection probe (15) and the outer surface of the steel pipe body (5) is installed on one side of the support cylinder (12). The rotating mechanism (9) includes a second spur gear (22), a third spur gear (23), and a drive shaft (24). The second spur gear (22) is fixedly sleeved on the outside of the support cylinder (12). The third spur gear (23) meshes with the top of the second spur gear (22). One end of the drive shaft (24) is fixedly sleeved with the middle hole of the third spur gear (23). The outside of the drive shaft (24) is rotatably connected to the moving plate (6) through a bearing. The output end of the second drive mechanism (11) is connected to the drive shaft (24) for transmission. The first drive mechanism (10) is located above the third spur gear (23). The fixing component (4) includes a circular plate (43) fixedly connected to the connecting frame (3). A transmission component (44) is installed on one side of the circular plate (43) near the connecting frame (3). Four limiting plates (45) are fixed in a ring array on the other side of the circular plate (43). A threaded cylinder (46) is rotatably connected to the inside of each of the four limiting plates (45) through a bearing. A threaded column (47) is threadedly connected to the inner side of the threaded cylinder (46). An L-shaped rod (48) is fixed to one end of the threaded column (47). An inner support rod (49) is fixed to one end of the L-shaped rod (48). The output end of the transmission component (44) is connected to the threaded cylinder (46) in a transmission manner.

2. The ultrasonic eddy current combined automatic testing equipment for seamless stainless steel pipes according to claim 1, characterized in that: The adjustment assembly (16) includes a first motor (17), a first spur gear (18), a first rack (19), a connecting rod (20), and a first mounting plate (21). The first motor (17) is fixedly connected to one end of the support cylinder (12) through the first mounting plate (21). The first spur gear (18) is fixed at the output end of the first motor (17). The first rack (19) meshes with the first spur gear (18), and the first rack (19) is slidably connected to the outside of the support cylinder (12). The detection probe (15) is fixedly connected to the first rack (19) through the connecting rod (20).

3. The ultrasonic eddy current combined automatic testing equipment for seamless stainless steel pipes according to claim 1, characterized in that: The first drive mechanism (10) includes a second motor (25), a first worm (26), a first worm wheel (27), a first shaft (28), a fourth spur gear (29), a first U-shaped plate (30), and a T-shaped plate (31). The second motor (25) is fixedly connected to the moving plate (6) through the T-shaped plate (31). The first worm (26) is fixedly connected to the output end of the second motor (25). The first worm (26) is rotatably connected to the moving plate (6) through a bearing seat. The first worm (26) and the first worm wheel (27) are... The first worm gear (27) is fixed at the top of the first shaft (28), the fourth spur gear (29) is fixedly sleeved on the outside of the first shaft (28), the bottom end of the first shaft (28) is rotatably connected to the first U-shaped plate (30) through a bearing, one end of the first U-shaped plate (30) is fixedly connected to the moving plate (6), a plurality of second racks (32) that mesh with the fourth spur gear (29) are fixed on one side of the crossbar (7), and two sliding parts (33) are symmetrically fixed on the side of the moving plate (6) near the crossbar (7).

4. The ultrasonic eddy current combined automatic testing equipment for stainless steel seamless pipes according to claim 3, characterized in that: The sliding member (33) includes a limiting roller (34), which is fixedly connected to the moving plate (6) by a fixing rod. The top and bottom of the crossbar (7) are provided with limiting grooves (35), and the limiting roller (34) is tumbled in the limiting grooves (35).

5. The ultrasonic eddy current combined automatic testing equipment for seamless stainless steel pipes according to claim 3, characterized in that: The second drive mechanism (11) includes a third motor (36), a second worm (37), a second worm gear (38), a second shaft (39), a first bevel gear (40), a second bevel gear (41), and a second U-shaped plate (42). The third motor (36) is fixedly connected to the moving plate (6) through the T-shaped plate (31). The second worm (37) is fixedly connected to the output end of the third motor (36). The second worm (37) is rotatably connected to the moving plate (6) through a bearing seat. The second worm (37) and the second worm gear... The second worm gear (38) meshes with the second worm gear (38), and the second worm gear (38) is fixed at the top of the second shaft (39). The middle part of the second shaft (39) is rotatably connected to the second U-shaped plate (42) through a bearing. One end of the second U-shaped plate (42) is fixedly connected to the moving plate (6). The first bevel gear (40) is fixed at the bottom of the second shaft (39). The second bevel gear (41) is fixed at the end of the drive shaft (24) away from the third spur gear (23). The first bevel gear (40) meshes with the second bevel gear (41).

6. The ultrasonic eddy current combined automatic testing equipment for seamless stainless steel pipes according to claim 1, characterized in that: The transmission component (44) includes a fourth motor (50), a second mounting plate (51), a sun gear (52), a planetary gear (53), a transmission shaft (54), a third bevel gear (55), and a fourth bevel gear (56). The fourth motor (50) is fixedly connected to the circular plate (43) through the second mounting plate (51). The sun gear (52) is fixedly sleeved to the output end of the fourth motor (50). There are four planetary gears (53), and the four planetary gears (53) are arranged in a ring array and mesh with the outside of the sun gear (52). The transmission shaft (54) is rotatably connected to the circular plate (43) through a bearing. The third bevel gear (55) is fixed to the end of the transmission shaft (54) away from the planetary gear (53). The fourth bevel gear (56) is fixedly sleeved on the outside of the threaded cylinder (46) and meshes with the third bevel gear (55).

7. The ultrasonic eddy current combined automatic testing equipment for seamless stainless steel pipes according to claim 6, characterized in that: A fixing plate (57) is fixed to the outer circumference of the circular plate (43). A sliding groove (58) is provided on the fixing plate (57). A sliding rod (59) is slidably connected in the sliding groove (58). One end of the sliding rod (59) is fixedly connected to the L-shaped rod (48) through a fixing rod.

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