A titanium alloy welded pipe flaw detection device

Abstract

The present invention relates to the technical field of titanium alloy welded pipe flaw detection, and discloses a titanium alloy welded pipe flaw detection device, including a box, a flaw detection mechanism is arranged inside the box, a lifting mechanism is fixedly installed on the upper side of the flaw detection mechanism, a moving mechanism is fixedly connected to one side of the lifting mechanism, a guide mechanism is fixedly installed between the moving mechanism and the lifting mechanism, an adjustment mechanism is connected to the inner side wall of the box, two groups of the adjustment mechanisms are symmetrically arranged about the center of the box, and a bearing platform is fixedly installed on the adjustment mechanism. The titanium alloy welded pipe flaw detection device achieves the effect of driving the flaw detection assembly to rotate in a circle around the titanium alloy welded pipe while the ultrasonic flaw detection head moves slowly in a straight line through the cooperation between the flaw detection mechanism, the moving mechanism, the lifting mechanism, the guide mechanism, the adjustment mechanism and the bearing platform, so that the movement trajectory of the ultrasonic flaw detection head is spiral, which solves the problems of poor flaw detection effect and low flaw detection efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of titanium alloy welded pipe flaw detection, in particular to a titanium alloy welded pipe flaw detection device. Background Art

[0002] During the manufacturing and use of titanium alloy pipe welded pipes, it is extremely important to carry out non-destructive testing to ensure the quality of the welds. Commonly used non-destructive testing methods mainly include offline full-tube magnetic leakage testing, eddy current testing and ultrasonic testing that are more than 5 mm away from the surface of the welded pipe. Among them, ultrasonic testing is divided into direct contact method and liquid immersion method, and the liquid immersion method has a wider range of applications.

[0003] The existing titanium alloy welded pipe flaw detection devices mainly have the following technical defects: when the existing liquid immersion ultrasonic titanium alloy welded pipe flaw detection equipment performs flaw detection on the entire pipe body, the titanium alloy welded pipe to be tested is placed in a box containing liquid as a coupling agent, and the staff immerses the handheld ultrasonic probe into the liquid close to the titanium alloy welded pipe, and slowly moves along the direction of the pipe above the titanium alloy welded pipe to achieve the flaw detection operation. This method cannot perform all-round detection of the titanium alloy welded pipe, but can only detect one side of the titanium alloy welded pipe. At the same time, through manual handheld operation, the distance between the probe and the titanium alloy welded pipe cannot be stable, and the probe is prone to shaking, which makes the detection data inaccurate, resulting in poor flaw detection effect and low flaw detection efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a titanium alloy welded pipe flaw detection device to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a titanium alloy welded pipe flaw detection device, comprising a box body, a flaw detection mechanism is arranged inside the box body, a lifting mechanism is fixedly installed on the upper side of the flaw detection mechanism, a moving mechanism is fixedly connected to one side of the lifting mechanism, a guide mechanism is fixedly installed between the moving mechanism and the lifting mechanism, an adjustment mechanism is fixedly connected to the inner side wall of the box body, two groups of the adjustment mechanisms are symmetrically arranged about the center of the box body, and a bearing platform is fixedly installed on the adjustment mechanism.

[0006] The flaw detection mechanism includes an arc track, a driving assembly, an arc-shaped external rack, a flaw detection assembly and a retractable assembly. The interior of the box is provided with an arc track, the outer side of the arc track is fixedly connected to the driving assembly, the inner side of the arc track is movably connected to the arc-shaped external rack, one side of the arc-shaped external rack is fixedly installed with a flaw detection assembly, one side of the arc track is provided with a retractable assembly, and the flaw detection assembly can realize full-range flaw detection operations on titanium alloy tubes.

[0007] Furthermore, the structure of the driving assembly includes a protective shell, a first mounting block, a first motor and a first gear. The protective shell is fixedly mounted on the outer side of the arc track. The first mounting block is also fixedly mounted on the outer side of the arc track by screws. The inner side of the first mounting block is fixedly connected to the first motor. The output end of the first motor is fixedly connected to the first gear. The first gear is located inside the protective shell. The output end of the first motor passes through the side wall of the protective shell and extends into the interior of the protective shell. A slot corresponding to the first gear is opened on the arc track, and the first gear is meshed with the arc-shaped external rack.

[0008] Furthermore, the structure of the flaw detection assembly includes a connecting head and an ultrasonic flaw detection head. The connecting head is fixedly installed on one side of the arc-shaped external rack by screws, and the ultrasonic flaw detection head is fixedly connected to the side of the connecting head away from the arc-shaped external rack. An arc-shaped groove corresponding to the connecting head is opened on the arc track.

[0009] Furthermore, the structure of the retractable assembly includes a second mounting block, a second motor, a second gear and an arc-shaped internal rack. One side of the arc-shaped track is fixedly connected to the second mounting block by screws, the inner side of the second mounting block is fixedly connected to the second motor, the output end of the second motor is fixedly connected to the second gear, and the outer side of the second gear is meshed with an arc-shaped internal rack.

[0010] Furthermore, the motion mechanism includes a bracket, a track plate, an electric slide rail, a sliding head and a push block. The bracket is fixedly connected to the upper side of the box body, the inner side of the bracket is fixedly connected to the track plate, the upper side of the track plate is fixedly connected to the electric slide rail, the upper side of the electric slide rail is slidably connected to the sliding head, and one end of the sliding head is fixedly connected to the push block.

[0011] Start the electric slide rail, and the electric slide rail drives the sliding head to move slowly in a straight line along the electric slide rail. When the sliding head moves, it drives the push block fixedly connected to it to move synchronously, so that the push block drives the cylinder and the load-bearing plate to slide in a straight line along the first guide rail through the first sliding block, and then synchronously drives the arc track, the arc inner rack and the flaw detection component to move synchronously. At the same time, start the first motor on both sides, and the output end of the first motor drives the first gear to rotate. When the first gear rotates, it meshes and drives the arc outer rack to rotate. When it is in the arc inner rack area, since the arc inner rack is provided with an arc groove corresponding to the arc protrusion on the arc outer rack, and then the arc outer rack rotates along the arc groove on the arc inner rack, when the arc outer When the rack moves to the inside of the arc track, since the arc track is provided with an arc groove corresponding to the connector, the arc outer rack rotates along the arc groove, thereby achieving the purpose of the arc outer rack driving the connector and the ultrasonic flaw detection head to rotate in a circle along the arc track and the arc inner rack, so that the ultrasonic flaw detection head rotates in a circle around the titanium alloy welded pipe, thereby achieving the effect of driving the flaw detection assembly to rotate in a circle around the titanium alloy welded pipe while the ultrasonic flaw detection head moves slowly in a straight line, making the movement trajectory of the ultrasonic flaw detection head spiral, achieving the effect of all-round automatic flaw detection of the titanium alloy welded pipe body, and at the same time, since there are three screw holes on the arc outer rack, multiple flaw detection assemblies can be installed according to needs to perform flaw detection work.

[0012] Furthermore, the lifting mechanism includes a cylinder, a piston rod, a lifting block and a connecting block, one side of the push block is fixedly connected to the cylinder, the inner side of the cylinder is movably connected to the piston rod, the lower side of the piston rod is fixedly connected to the lifting block, the lower side of the lifting block is fixedly connected to the connecting block, the connecting block is fixedly connected to the arc track, the cylinder is fixedly connected to the push block, and a rectangular slide groove corresponding to the cylinder is provided on the track plate.

[0013] Start the cylinder, and the cylinder controls the piston rod to extend downward, thereby driving the lifting block fixedly connected to it to move downward synchronously. Before this, start the retractable assembly, and the output end of the retractable assembly drives the second gear to rotate. While the second gear rotates, the meshing drives the arc-shaped inner rack to rotate along the arc-shaped slide groove corresponding to the arc-shaped inner rack inside the arc-shaped track, so that the arc-shaped inner rack is retracted into the inside of the arc-shaped track, and a gap is generated in the lower part of the arc-shaped track. Then, when the lifting block moves downward, the arc-shaped track is driven to move downward synchronously through the connecting block. Due to the gap in the lower part of the arc-shaped track, the axial inner side of the arc-shaped track gradually approaches the titanium alloy welded pipe. When the center of the arc-shaped track overlaps with the center of the titanium alloy welded pipe, the cylinder stops working.

[0014] Then the second motor is started again, and the second motor drives the second gear to rotate in the opposite direction, so that the arc-shaped inner rack rotates along the arc-shaped groove inside the arc-shaped track corresponding to the arc-shaped inner rack, and the arc-shaped inner rack rotates to the outside of the arc-shaped track, so that the arc-shaped track and the arc-shaped inner rack form a full circle surrounding the outside of the titanium alloy welded pipe.

[0015] Furthermore, the guiding mechanism includes a first sliding block, a first guide rail and a supporting plate, the first guide rail is fixedly connected to the lower side of the track plate, the first sliding block is slidably connected to the first guide rail, the supporting plate is fixedly connected to the lower side of the first sliding block, and the supporting plate is fixedly connected to the cylinder.

[0016] Furthermore, the adjusting mechanism includes a fixed plate, a third motor, a protective plate, a first pulley and a belt; the inner side of the box is fixedly connected to a fixed plate, one side of the fixed plate is fixedly connected to the third motor, a side of the third motor away from the fixed plate is fixedly connected to a protective plate, an output end of the third motor is fixedly connected to the first pulley, a connecting block is fixedly connected to the lower part of the fixed plate, one side of the connecting block is rotatably connected to the second pulley, and the first pulley and the outer side of the second pulley are transmission-connected by a belt.

[0017] Furthermore, the supporting platform includes a second guide rail, a second sliding block and a supporting block, one side of the fixed plate is fixedly connected to the second guide rail, the outer side of the second guide rail is slidably connected to the second sliding block, the side of the second sliding block away from the second guide rail is fixedly connected to the supporting block, a semicircular arc groove is opened on the supporting block, and the second sliding block is fixedly connected to the belt.

[0018] Pour liquid coupling agent (water or oil) into the box, then place the titanium alloy welded pipe to be tested in the semicircular arc groove inside the bearing blocks on both sides, start the third motors on both sides simultaneously, and the output end of the third motor drives the first pulley to rotate. By controlling the third motor to rotate forward and reverse, the belt drives the second sliding block fixedly connected to it to move up and down along the second guide rail. After the bearing block is driven to the specified height, the third motor stops working.

[0019] Furthermore, the arc-shaped outer rack and the arc-shaped inner rack are both provided with arc-shaped protrusions, and the arc-shaped track and the arc-shaped inner rack are provided with arc-shaped sliding grooves corresponding to the arc-shaped protrusions.

[0020] Compared with the prior art, the present invention provides a titanium alloy welded pipe flaw detection device, which has the following beneficial effects:

[0021] 1. The titanium alloy welded pipe flaw detection device realizes the purpose of circular rotation of the ultrasonic flaw detection head around the titanium alloy welded pipe through the cooperation between the flaw detection mechanism, the motion mechanism, the lifting mechanism, the guide mechanism, the adjustment mechanism and the bearing platform, thereby achieving the effect of driving the flaw detection component to rotate around the titanium alloy welded pipe while the ultrasonic flaw detection head moves slowly in a straight line, so that the movement trajectory of the ultrasonic flaw detection head is spiral, and the effect of all-round automatic flaw detection of the titanium alloy welded pipe body is achieved, which solves the problems of poor flaw detection effect and low flaw detection efficiency.

[0022] 2. The titanium alloy welded pipe flaw detection device realizes the purpose of freely opening the gap in the lower part of the arc track through the cooperation between the arc track, the driving assembly, the arc external rack, the flaw detection assembly and the retracting assembly, thereby achieving the effect of automatically controlling the center of the arc track to overlap with the center of the titanium alloy welded pipe, providing a convenient track support for the rotation of the connecting head around the circumference of the titanium alloy welded pipe, solving the method of using a manual handheld ultrasonic flaw detection head for flaw detection in the prior art, and greatly improving the flaw detection work efficiency.

[0023] 3. The titanium alloy welded pipe flaw detection device realizes the purpose of automatic flaw detection operation on the titanium alloy welded pipe through the cooperation between the motion mechanism, the adjustment mechanism and the lifting mechanism, which changes the existing flaw detection operation process in which each step is manually operated. It solves the problem that the distance between the probe and the titanium alloy welded pipe cannot be stabilized and the probe is easy to shake, resulting in inaccurate detection data in the existing technology using manual handheld operation, thereby improving the accuracy of the detection data. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the internal three-dimensional structure of the box body of the present invention after being cut;

[0026] Figure 3 It is a three-dimensional structural schematic diagram of the lifting mechanism of the present invention;

[0027] Figure 4 It is a three-dimensional structural schematic diagram of the flaw detection mechanism of the present invention;

[0028] Figure 5 It is a schematic diagram of the exploded three-dimensional structure of the flaw detection mechanism of the present invention;

[0029] Figure 6 It is a schematic diagram of the exploded three-dimensional structure of the flaw detection mechanism of the present invention;

[0030] Figure 7 It is a schematic diagram of the three-dimensional structure of the carrying platform of the present invention;

[0031] Figure 8 For the present invention Figure 5 The enlarged schematic diagram of point A in the middle;

[0032] Fig. 9 For the present invention Figure 5 A magnified schematic diagram of point B in the middle.

[0033] In the figure: 1, box; 2, flaw detection mechanism; 21, arc track; 22, drive assembly; 221, protective shell; 222, first mounting block; 223, first motor; 224, first gear; 23, arc outer rack; 24, flaw detection assembly; 241, connector; 242, ultrasonic flaw detection head; 25, retractable assembly; 251, second mounting block; 252, second motor; 253, second gear; 254, arc inner rack; 3, motion mechanism; 31, bracket; 32, track plate; 33, electric Movable slide rail; 34, sliding head; 35, pushing block; 4, lifting mechanism; 41, cylinder; 42, piston rod; 43, lifting block; 44, connecting block; 5, guiding mechanism; 51, first sliding block; 52, first guide rail; 53, bearing plate; 6, adjusting mechanism; 61, fixing plate; 62, third motor; 63, protective plate; 64, first pulley; 65, belt; 66, second pulley; 67, connecting block; 7, bearing platform; 71, second guide rail; 72, second sliding block; 73, bearing block. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] For example, see Figure 1-Figure 5 , Figure 8 and Fig. 9 A titanium alloy welded pipe flaw detection device comprises a box body 1, a flaw detection mechanism 2 is arranged inside the box body 1, a lifting mechanism 4 is fixedly installed on the upper side of the flaw detection mechanism 2, a moving mechanism 3 is fixedly connected to one side of the lifting mechanism 4, a guide mechanism 5 is fixedly installed between the moving mechanism 3 and the lifting mechanism 4, an inner side wall of the box body 1 is fixedly connected to an adjusting mechanism 6, two groups of the adjusting mechanism 6 are symmetrically arranged about the center of the box body 1, and a bearing platform 7 is fixedly installed on the adjusting mechanism 6.

[0036] The flaw detection mechanism 2 includes an arc track 21, a driving assembly 22, an arcuate external rack 23, a flaw detection assembly 24 and a retractable assembly 25. The interior of the box body 1 is provided with an arc track 21, the outer side of the arc track 21 is fixedly connected with the driving assembly 22, the inner side of the arc track 21 is movably connected with the arcuate external rack 23, one side of the arcuate external rack 23 is fixedly installed with the flaw detection assembly 24, and one side of the arc track 21 is provided with the retractable assembly 25. The flaw detection assembly 24 can realize full-range flaw detection operation on the titanium alloy tube.

[0037] Furthermore, the structure of the driving component 22 includes a protective shell 221, a first mounting block 222, a first motor 223 and a first gear 224. The protective shell 221 is fixedly installed on the outer side of the arc track 21. The first mounting block 222 is also fixedly installed on the outer side of the arc track 21 by screws. The inner side of the first mounting block 222 is fixedly connected to the first motor 223. The output end of the first motor 223 is fixedly connected to the first gear 224. The first gear 224 is located inside the protective shell 221. The output end of the first motor 223 passes through the side wall of the protective shell 221 and extends into the interior of the protective shell 221. A slot corresponding to the first gear 224 is opened on the arc track 21, and the first gear 224 is meshed with the arc-shaped outer rack 23.

[0038] Furthermore, the structure of the flaw detection assembly 24 includes a connecting head 241 and an ultrasonic flaw detection head 242. The connecting head 241 is fixedly installed on one side of the arc-shaped external rack 23 by screws, and the ultrasonic flaw detection head 242 is fixedly connected to the side of the connecting head 241 away from the arc-shaped external rack 23. An arc groove corresponding to the connecting head 241 is opened on the arc track 21.

[0039] Furthermore, the structure of the retractable assembly 25 includes a second mounting block 251, a second motor 252, a second gear 253 and an arc-shaped inner rack 254. One side of the arc track 21 is fixedly connected to the second mounting block 251 by screws, the inner side of the second mounting block 251 is fixedly connected to the second motor 252, the output end of the second motor 252 is fixedly connected to the second gear 253, and the outer side of the second gear 253 is meshed with the arc-shaped inner rack 254.

[0040] Furthermore, the motion mechanism 3 includes a bracket 31, a track plate 32, an electric slide rail 33, a sliding head 34 and a push block 35. The bracket 31 is fixedly connected to the upper side of the box body 1, the track plate 32 is fixedly connected to the inner side of the bracket 31, the electric slide rail 33 is fixedly connected to the upper side of the track plate 32, the sliding head 34 is slidably connected to the upper side of the electric slide rail 33, and one end of the sliding head 34 is fixedly connected to the push block 35.

[0041] Furthermore, the lifting mechanism 4 includes a cylinder 41, a piston rod 42, a lifting block 43 and a connecting block 44. The cylinder 41 is fixedly connected to one side of the push block 35, the piston rod 42 is movably connected to the inner side of the cylinder 41, the lifting block 43 is fixedly connected to the lower side of the piston rod 42, the lifting block 43 is fixedly connected to the lower side of the lifting block 43, the connecting block 44 is fixedly connected to the arc track 21, the cylinder 41 is fixedly connected to the push block 35, and a rectangular slide groove corresponding to the cylinder 41 is opened on the track plate 32.

[0042] Start the cylinder 41, which controls the piston rod 42 to extend downward, thereby driving the lifting block 43 fixedly connected thereto to move downward synchronously. Prior to this, start the retractable assembly 25, and the output end of the retractable assembly 25 drives the second gear 253 to rotate. While the second gear 253 rotates, it engages and drives the arcuate inner rack 254 to rotate along the arcuate groove corresponding to the arcuate inner rack 254 inside the arc track 21, so that the arcuate inner rack 254 is retracted into the interior of the arc track 21, and a gap is generated at the lower part of the arc track 21. Then, while the lifting block 43 moves downward, it drives the arc track 21 to move downward synchronously through the connecting block 44. Since the gap is generated at the lower part of the arc track 21, the axial inner side of the arc track 21 gradually approaches the titanium alloy welded pipe. When the center of the arc track 21 overlaps with the center of the titanium alloy welded pipe, the cylinder 41 stops working.

[0043] Then the second motor 252 is started again, and the second motor 252 drives the second gear 253 to rotate in the opposite direction, so that the arcuate inner rack 254 rotates along the arcuate groove inside the arcuate track 21 corresponding to the arcuate inner rack 254, and the arcuate inner rack 254 rotates to the outside of the arcuate track 21, so that the arcuate track 21 and the arcuate inner rack 254 form a full circle surrounding the outside of the titanium alloy welded pipe.

[0044] Furthermore, the guide mechanism 5 includes a first sliding block 51, a first guide rail 52 and a supporting plate 53. The first guide rail 52 is fixedly connected to the lower side of the track plate 32, the first sliding block 51 is slidably connected to the first guide rail 52, the lower side of the first sliding block 51 is fixedly connected to the supporting plate 53, and the supporting plate 53 is fixedly connected to the cylinder 41.

[0045] The electric slide rail 33 is started, and the electric slide rail 33 drives the sliding head 34 to perform slow linear motion along the electric slide rail 33. When the sliding head 34 moves, the push block 35 fixedly connected thereto is driven to perform synchronous motion, so that the push block 35 drives the cylinder 41 and the carrying plate 53 to slide linearly along the first guide rail 52 through the first sliding block 51, thereby synchronously driving the arc track 21, the arc inner rack 254 and the flaw detection component 24 to perform synchronous motion. At the same time, the first motors 223 on both sides are started, and the output end of the first motor 223 drives the first gear 224 to rotate. When the first gear 224 rotates, it meshes and drives the arc outer rack 23 to rotate. When in the arc inner rack 254 area, since the arc inner rack 254 is provided with an arc groove corresponding to the arc protrusion on the arc outer rack 23, the arc outer rack 23 moves along the arc groove on the arc inner rack 254 When the arc-shaped outer rack 23 moves to the inside of the arc track 21, since the arc track 21 is provided with an arc groove corresponding to the connecting head 241, the arc-shaped outer rack 23 rotates along the arc groove, thereby achieving the purpose of the arc-shaped outer rack 23 driving the connecting head 241 and the ultrasonic flaw detection head 242 to rotate in a circle along the arc track 21 and the arc-shaped inner rack 254, so that the ultrasonic flaw detection head 242 rotates in a circle around the titanium alloy welded pipe, thereby achieving the effect of the ultrasonic flaw detection head 242 moving slowly in a straight line while driving the flaw detection component 24 to rotate in a circle around the titanium alloy welded pipe, so that the movement trajectory of the ultrasonic flaw detection head 242 is a spiral line, and the effect of all-round automatic flaw detection of the titanium alloy welded pipe body is achieved. At the same time, since the arc-shaped outer rack 23 is provided with three screw holes, multiple flaw detection components 24 can be installed according to needs to perform flaw detection work.

[0046] Example 2, based on the above example 1, please refer to Figure 1 , Figure 6 and Figure 7 The adjusting mechanism 6 includes a fixed plate 61, a third motor 62, a protective plate 63, a first pulley 64 and a belt 65. The inner side of the box body 1 is fixedly connected with the fixed plate 61, one side of the fixed plate 61 is fixedly connected with the third motor 62, the side of the third motor 62 away from the fixed plate 61 is fixedly connected with the protective plate 63, the output end of the third motor 62 is fixedly connected with the first pulley 64, the lower part of the fixed plate 61 is fixedly connected with a connecting block 67, one side of the connecting block 67 is rotatably connected with the second pulley 66, and the outer sides of the first pulley 64 and the second pulley 66 are transmission-connected with a belt 65.

[0047] Furthermore, the supporting platform 7 includes a second guide rail 71, a second sliding block 72 and a supporting block 73. The second guide rail 71 is fixedly connected to one side of the fixed plate 61, the second sliding block 72 is slidably connected to the outer side of the second guide rail 71, and the side of the second sliding block 72 away from the second guide rail 71 is fixedly connected to the supporting block 73. A semicircular arc groove is provided on the supporting block 73, and the second sliding block 72 is fixedly connected to the belt 65.

[0048] Pour liquid coupling agent (water or oil) into the box body 1, and then place the titanium alloy welded pipe to be tested in the semicircular arc groove inside the supporting blocks 73 on both sides, and start the third motors 62 on both sides simultaneously. The output end of the third motor 62 drives the first pulley 64 to rotate, and the third motor 62 is controlled to rotate forward and reverse, so that the belt 65 drives the second sliding block 72 fixedly connected thereto to move up and down along the second guide rail 71. After the supporting block 73 is driven to a specified height, the third motor 62 stops working.

[0049] Furthermore, arc-shaped outer rack 23 and arc-shaped inner rack 254 are both provided with arc-shaped protrusions, and arc-shaped rail 21 and arc-shaped inner rack 254 are provided with arc-shaped sliding grooves corresponding to the arc-shaped protrusions.

[0050] The specific usage and function of this embodiment.

[0051] When in use, first pour liquid coupling agent water or oil into the box body 1, then place the titanium alloy welded pipe to be tested in the semicircular arc groove inside the supporting blocks 73 on both sides, and start the third motors 62 on both sides simultaneously. The output end of the third motor 62 drives the first pulley 64 to rotate, and by controlling the third motor 62 to rotate forward and reverse, the belt 65 drives the second sliding block 72 fixedly connected thereto to move up and down along the second guide rail 71. After the supporting block 73 is driven to a specified height, the third motor 62 stops working.

[0052] Start the cylinder 41, which controls the piston rod 42 to extend downward, thereby driving the lifting block 43 fixedly connected thereto to move downward synchronously. Prior to this, start the retractable assembly 25, and the output end of the retractable assembly 25 drives the second gear 253 to rotate. While the second gear 253 rotates, it engages and drives the arcuate inner rack 254 to rotate along the arcuate groove corresponding to the arcuate inner rack 254 inside the arc track 21, so that the arcuate inner rack 254 is retracted into the interior of the arc track 21, and a gap is generated at the lower part of the arc track 21. Then, while the lifting block 43 moves downward, it drives the arc track 21 to move downward synchronously through the connecting block 44. Since the gap is generated at the lower part of the arc track 21, the axial inner side of the arc track 21 gradually approaches the titanium alloy welded pipe. When the center of the arc track 21 overlaps with the center of the titanium alloy welded pipe, the cylinder 41 stops working.

[0053] Then the second motor 252 is started again, and the second motor 252 drives the second gear 253 to rotate in the opposite direction, so that the arcuate inner rack 254 rotates along the arcuate groove inside the arcuate track 21 corresponding to the arcuate inner rack 254, and the arcuate inner rack 254 rotates to the outside of the arcuate track 21, so that the arcuate track 21 and the arcuate inner rack 254 form a full circle surrounding the outside of the titanium alloy welded pipe.

[0054] The electric slide rail 33 is started, and the electric slide rail 33 drives the sliding head 34 to perform slow linear motion along the electric slide rail 33. When the sliding head 34 moves, the push block 35 fixedly connected thereto is driven to perform synchronous motion, so that the push block 35 drives the cylinder 41 and the carrying plate 53 to slide linearly along the first guide rail 52 through the first sliding block 51, thereby synchronously driving the arc track 21, the arc inner rack 254 and the flaw detection component 24 to perform synchronous motion. At the same time, the first motors 223 on both sides are started, and the output end of the first motor 223 drives the first gear 224 to rotate. When the first gear 224 rotates, it meshes and drives the arc outer rack 23 to rotate. When in the arc inner rack 254 area, since the arc inner rack 254 is provided with an arc groove corresponding to the arc protrusion on the arc outer rack 23, the arc outer rack 23 moves along the arc groove on the arc inner rack 254 When the arc-shaped outer rack 23 moves to the inside of the arc track 21, since the arc track 21 is provided with an arc groove corresponding to the connecting head 241, the arc-shaped outer rack 23 rotates along the arc groove, thereby achieving the purpose of the arc-shaped outer rack 23 driving the connecting head 241 and the ultrasonic flaw detection head 242 to rotate in a circle along the arc track 21 and the arc-shaped inner rack 254, so that the ultrasonic flaw detection head 242 rotates in a circle around the titanium alloy welded pipe, thereby achieving the effect of the ultrasonic flaw detection head 242 moving slowly in a straight line while driving the flaw detection component 24 to rotate in a circle around the titanium alloy welded pipe, so that the movement trajectory of the ultrasonic flaw detection head 242 is a spiral line, and the effect of all-round automatic flaw detection of the titanium alloy welded pipe body is achieved. At the same time, since the arc-shaped outer rack 23 is provided with three screw holes, multiple flaw detection components 24 can be installed according to needs to perform flaw detection work.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A titanium alloy welded pipe flaw detection device, comprising a housing (1), characterized in that: A flaw detection mechanism (2) is arranged inside the box (1); a lifting mechanism (4) is fixedly installed on the upper side of the flaw detection mechanism (2); a moving mechanism (3) is fixedly connected to one side of the lifting mechanism (4); a guide mechanism (5) is fixedly installed between the moving mechanism (3) and the lifting mechanism (4); an adjustment mechanism (6) is fixedly connected to the inner side wall of the box (1); two groups of the adjustment mechanisms (6) are symmetrically arranged about the center of the box (1); and a bearing platform (7) is fixedly installed on the adjustment mechanism (6); The flaw detection mechanism (2) comprises an arc track (21), a driving assembly (22), an arc-shaped external rack (23), a flaw detection assembly (24) and a retractable assembly (25); the interior of the box (1) is provided with an arc track (21); the outer side of the arc track (21) is fixedly connected to the driving assembly (22); the inner side of the arc track (21) is movably connected to the arc-shaped external rack (23); the flaw detection assembly (24) is fixedly mounted on one side of the arc-shaped external rack (23); the retractable assembly (25) is provided on one side of the arc track (21); and the flaw detection assembly (24) can realize full-range flaw detection operation on the titanium alloy tube; The structure of the retractable assembly (25) comprises a second mounting block (251), a second motor (252), a second gear (253) and an arcuate inner gear rack (254); one side of the arcuate track (21) is fixedly connected to the second mounting block (251) by means of screws; the inner side of the second mounting block (251) is fixedly connected to the second motor (252); the output end of the second motor (252) is fixedly connected to the second gear rack (253); and the outer side of the second gear rack (253) is meshed with the arcuate inner gear rack (254).

2. A titanium alloy welded pipe flaw detection device according to claim 1, characterized in that: The structure of the driving assembly (22) comprises a protective shell (221), a first mounting block (222), a first motor (223) and a first gear (224); the protective shell (221) is fixedly mounted on the outer side of the arc track (21); the first mounting block (222) is also fixedly mounted on the outer side of the arc track (21) by means of screws; the first motor (223) is fixedly connected to the inner side of the first mounting block (222); the output end of the first motor (223) is fixedly connected to the first gear (224); the first gear (224) is located inside the protective shell (221); the output end of the first motor (223) passes through the side wall of the protective shell (221) and extends into the interior of the protective shell (221); a slot corresponding to the first gear (224) is provided on the arc track (21); and the first gear (224) is meshed with the arc-shaped outer rack (23).

3. A titanium alloy welded pipe flaw detection device according to claim 1, characterized in that: The structure of the flaw detection assembly (24) comprises a connecting head (241) and an ultrasonic flaw detection head (242); the connecting head (241) is fixedly mounted on one side of the arc-shaped outer rack (23) by means of screws; the ultrasonic flaw detection head (242) is fixedly connected to a side of the connecting head (241) away from the arc-shaped outer rack (23); and an arc-shaped groove corresponding to the connecting head (241) is provided on the arc-shaped track (21).

4. A titanium alloy welded pipe flaw detection device according to claim 1, characterized in that: The motion mechanism (3) comprises a bracket (31), a track plate (32), an electric slide rail (33), a sliding head (34) and a push block (35); the bracket (31) is fixedly connected to the upper side of the box body (1); the track plate (32) is fixedly connected to the inner side of the bracket (31); the electric slide rail (33) is fixedly connected to the upper side of the track plate (32); the sliding head (34) is slidably connected to the upper side of the electric slide rail (33); and one end of the sliding head (34) is fixedly connected to the push block (35).

5. A titanium alloy welded pipe flaw detection device according to claim 4, characterized in that: The lifting mechanism (4) comprises a cylinder (41), a piston rod (42), a lifting block (43) and a connecting block (44); one side of the push block (35) is fixedly connected to the cylinder (41); the inner side of the cylinder (41) is movably connected to the piston rod (42); the lower side of the piston rod (42) is fixedly connected to the lifting block (43); the lower side of the lifting block (43) is fixedly connected to the connecting block (44); the connecting block (44) is fixedly connected to the arc track (21); the cylinder (41) is fixedly connected to the push block (35); and a rectangular slide groove corresponding to the cylinder (41) is provided on the track plate (32).

6. A titanium alloy welded pipe flaw detection device according to claim 4, characterized in that: The guide mechanism (5) comprises a first sliding block (51), a first guide rail (52) and a bearing plate (53); the first guide rail (52) is fixedly connected to the lower side of the track plate (32); the first sliding block (51) is slidably connected to the first guide rail (52); the bearing plate (53) is fixedly connected to the lower side of the first sliding block (51); and the bearing plate (53) is fixedly connected to the cylinder (41).

7. A titanium alloy welded pipe flaw detection device according to claim 1, characterized in that: The adjustment mechanism (6) comprises a fixed plate (61), a third motor (62), a protective plate (63), a first pulley (64) and a belt (65); the inner side of the box body (1) is fixedly connected to the fixed plate (61); one side of the fixed plate (61) is fixedly connected to the third motor (62); a side of the third motor (62) away from the fixed plate (61) is fixedly connected to the protective plate (63); an output end of the third motor (62) is fixedly connected to the first pulley (64); a connecting block (67) is fixedly connected to the lower part of the fixed plate (61); one side of the connecting block (67) is rotatably connected to the second pulley (66); and the outer sides of the first pulley (64) and the second pulley (66) are transmission-connected by a belt (65).

8. A titanium alloy welded pipe flaw detection device according to claim 7, characterized in that: The bearing platform (7) comprises a second guide rail (71), a second sliding block (72) and a bearing block (73); one side of the fixed plate (61) is fixedly connected to the second guide rail (71); the outer side of the second guide rail (71) is slidably connected to the second sliding block (72); a side of the second sliding block (72) away from the second guide rail (71) is fixedly connected to the bearing block (73); a semicircular arc groove is provided on the bearing block (73); and the second sliding block (72) is fixedly connected to the belt (65).

9. A titanium alloy welded pipe flaw detection device according to claim 1, characterized in that: The arc-shaped outer rack (23) and the arc-shaped inner rack (254) are both provided with arc-shaped protrusions, and the arc-shaped track (21) and the arc-shaped inner rack (254) are provided with arc-shaped sliding grooves corresponding to the arc-shaped protrusions.

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