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CN-122017041-A - Ultrasonic phased array detection device for butt joint of thin-wall austenitic stainless steel pipe

CN122017041ACN 122017041 ACN122017041 ACN 122017041ACN-122017041-A

Abstract

The invention relates to the technical field of ultrasonic phased array detection, and particularly discloses an ultrasonic phased array detection device for a butt joint of a thin-wall austenitic stainless steel pipe, which comprises a mounting substrate, wherein the mounting substrate is two L-shaped plates, an annular centering enclasping mechanism is arranged between the two mounting substrates, and comprises a first semicircular arc plate, a second semicircular arc plate, a movable joint bolt, an annular scanning track, a mounting assembly, a V-shaped positioning assembly, a quick locking hasp, a quick locking snap groove and a mounting seat, and the bicone structure of the V-shaped roller and the outer wall of the steel pipe form two symmetrical contact buses, so that the rotation center of the annular centering enclasping mechanism is automatically overlapped with the axis of the steel pipe due to the geometric constraint function of the bicone structure of the V-shaped roller, thereby realizing a self-centering function. The problem that when the pipe diameter has small tolerance or ellipticity, the accurate alignment relation between the probe and the center of the welding line is difficult to maintain, so that the repeatability of detection signals is reduced is effectively solved.

Inventors

  • ZHAO LIANG
  • WANG CHAO
  • ZHANG WEI

Assignees

  • 常州天策电子科技有限公司

Dates

Publication Date
20260512
Application Date
20260410

Claims (10)

  1. 1. The ultrasonic phased array detection device for the butt joint of the thin-wall austenitic stainless steel pipe is characterized by comprising a mounting substrate (1), wherein the mounting substrate (1) is two L-shaped plates, an annular centering enclasping mechanism (2) is arranged between the two mounting substrates (1), the annular centering enclasping mechanism (2) comprises a first semicircular arc plate (21), a second semicircular arc plate (22) and a movable joint bolt (23), the bottoms of the first semicircular arc plate (21) and the second semicircular arc plate (22) are respectively hinged with one movable joint bolt (23), the surfaces of the annular scanning track (24) are respectively provided with an annular scanning track (24) in the first semicircular arc plate (21) and the second semicircular arc plate (22), the mounting assemblies (25) are positioned in the annular scanning track (24) and are in sliding connection with the annular scanning track (24), the inner walls of the first semicircular arc plate (21) and the second semicircular arc plate (22) are embedded in the mounting seats (29), the mounting seats (29) are provided with a plurality of groups, each group of the mounting seats (29) is provided with a rectangular-shaped mounting seat (31), each group of the mounting seats is provided with a horizontal absorption seat (31), and each group of the horizontal absorption seat is provided with a horizontal absorption seat (31), and the horizontal seat is provided with a horizontal absorption seat (31; The V-arrangement locating component (26) comprises two mounting blocks (261) and thread blocks (262), the mounting blocks (261) are fixedly connected with the thread blocks (262), the thread blocks (262) are in threaded connection with mounting seats (29), one side of the thread blocks (262) is far away from the mounting blocks (261) is provided with a mounting support (263), the mounting support (263) is in U-shaped arrangement, two roller frames (264) are arranged between the mounting support (263), each V-arrangement roller (265) are respectively mounted on one side of each roller frame (264), the V-arrangement roller (265) are in rotary connection with the roller frames (264), the two V-arrangement rollers (265) are in V-arrangement, two thread driving rods (266) are arranged between the roller frames (264), the thread driving rods (266) penetrate through the two roller frames (264), the thread driving rods (266) are in threaded connection with the roller frames (264), the thread directions of the two roller frames (264) are opposite, and the V-arrangement roller frames (264) are in opposite directions, and the V-arrangement roller frames (265) are in parallel to the axis line of the V-arrangement roller frames (264) and form a V-arrangement locating groove.
  2. 2. The ultrasonic phased array detection device of the butt joint of the thin-wall austenitic stainless steel pipes, according to claim 1, characterized in that the V-shaped positioning assembly (26) further comprises a moving groove (268), the moving groove (268) is formed in the side edge of the mounting block (261), a sliding rod (2610) is fixedly connected to the inside of the moving groove (268), a sliding block (2611) is slidingly sleeved on the surface of the sliding rod (2610), a first compression spring (269) is arranged on the side edge of the sliding block (2611), a first hinging seat (2613) is arranged at the top of the sliding block (2611), a connecting plate (2612) is arranged on the side edge of the first hinging seat (2613), a second hinging seat (2614) is arranged at the other end of the connecting plate (2612), the other end of the connecting plate (2612) is hinged to the second hinging seat (2614), a second hinging seat (264) is fixedly connected with a driving rod (267), and a driving rod (266) is fixedly connected with a rotating handle (266).
  3. 3. The ultrasonic phased array detection device for the butt joint of the thin-walled austenitic stainless steel pipes according to claim 1, wherein the installation assembly (25) comprises a placement plate (251), the placement plate (251) is connected with the annular scanning track (24) in a matching mode, the placement plate (251) is connected with the annular scanning track (24) in a sliding mode, a positioning matching plate (252) is arranged at the top of the placement plate (251), an installation groove (253) is formed in the surface of the placement plate (251), and a circular motion scanning mechanism (3) is arranged at the upper portion of the placement plate (251).
  4. 4. The ultrasonic phased array detection device for the butt joint of the thin-walled austenitic stainless steel pipes according to claim 3, wherein the circular motion scanning mechanism (3) comprises a scanning vehicle (31), a probe driving assembly (32), a probe constant-pressure clamping assembly (33) and a couplant coating assembly (34), the scanning vehicle (31) comprises a chassis (311) and a side locating plate (312), the chassis (311) is in contact with the placing plate (251), the side locating plate (312) is located on the side edge of the chassis (311), the side locating plate (312) is in matched connection with the locating matching plate (252) and is fixed through bolts, a driving wheel (313) is arranged on the lower portion of the chassis (311), the driving wheel (313) is in contact with the annular scanning track (24) through a mounting groove (253), a double-head driving motor (314) is arranged on the lower portion of the chassis (311), the balls (315) are in contact with the annular scanning track (24) through the mounting groove (253), and the balls (315) are in rotary connection with the chassis (311).
  5. 5. The ultrasonic phased array detection device of the butt joint of the thin-wall austenitic stainless steel pipes, wherein the probe driving assembly (32) comprises a cantilever bracket (321), the cantilever bracket (321) is fixedly connected with a chassis (311), a first electric push rod (322) is arranged on the side edge of the top of the cantilever bracket (321), a cross beam (323) is arranged at the driving end of the first electric push rod (322), a second electric push rod (324) is arranged on the upper portion of the cross beam (323), a guide hole is formed in the middle of the cross beam (323), the second electric push rod (324) penetrates through the guide hole, a plurality of mounting holes (327) are formed in the bottom of the mounting plate (326), a probe constant-pressure clamping assembly (33) is arranged in the mounting hole (327), a second compression spring (325) is sleeved on the surface of the electric push rod between the guide hole and the mounting plate (326), two ends of the second compression spring (325) are respectively connected with the output ends of the mounting plate (326) and the second electric push rod (324), and the second electric push rod (324) is connected with the mounting plate (325) through the second compression spring (326).
  6. 6. The ultrasonic phased array detection device for the butt joint of the thin-wall austenitic stainless steel pipes, as set forth in claim 5, wherein the probe constant pressure clamping assembly (33) comprises a threaded mounting piece (331), the threaded mounting piece (331) is in threaded connection with a mounting hole (327), a U-shaped support (332) is fixedly connected to the bottom of the threaded mounting piece (331), a rotating piece (333) is arranged between the U-shaped supports (332), a probe mounting piece (334) is fixedly arranged at the bottom of the rotating piece (333), and the probe mounting piece (334) is in rotational connection with the U-shaped support (332) through the rotating piece (333).
  7. 7. The ultrasonic phased array detection device for the butt joint of the thin-walled austenitic stainless steel pipes, as set forth in claim 6, is characterized in that an ultrasonic phased array probe (337) is arranged in the probe mounting piece (334), and an inward concave arc-shaped contact surface consistent with the curvature of the outer diameter of the steel pipes is arranged at the bottom of the probe mounting piece (334) and used for loading the ultrasonic phased array probe (337) and ensuring that the ultrasonic phased array probe always points to the center of a welding line vertically.
  8. 8. The ultrasonic phased array detection device for the butt joint of the thin-wall austenitic stainless steel pipes as set forth in claim 7, wherein self-lubricating wear-resistant gaskets (335) are arranged on two sides of the concave arc-shaped contact surface of the probe mounting piece (334), the gaskets are made of polytetrafluoroethylene and are used for reducing friction resistance of the probe when the probe slides on the surface of the steel pipe and preventing the pipe wall from being scratched, and a couplant reflux groove (336) is further formed in the bottom of the probe mounting piece (334) and is used for discharging redundant couplant.
  9. 9. The ultrasonic phased array detection device for the butt joint of the thin-walled austenitic stainless steel pipes, as set forth in claim 4, characterized in that the couplant coating assembly (34) comprises a couplant storage bin (341), the couplant storage bin (341) is located on the upper surface of the chassis (311), a conveying pipe (342) is arranged on the side edge of the couplant storage bin (341), and a couplant spray head (343) is arranged at one end, far away from the couplant storage bin (341), of the conveying pipe (342).
  10. 10. The ultrasonic phased array detection device for the butt joint of the thin-wall austenitic stainless steel pipes, which is disclosed in claim 1, is characterized in that the butt joint end surfaces of a first semicircular arc plate (21) and a second semicircular arc plate (22) of the annular centering enclasping mechanism (2) are provided with tongue-and-groove type dislocation preventing structures, smooth butt joint of the annular scanning track (24) surfaces of the two semicircular rings is ensured when a quick locking hasp (27) and a quick locking lapping groove (28) are closed, and a butt joint gap is smaller than 0.1mm.

Description

Ultrasonic phased array detection device for butt joint of thin-wall austenitic stainless steel pipe Technical Field The invention relates to the technical field of ultrasonic phased array detection, in particular to an ultrasonic phased array detection device for a butt joint of a thin-wall austenitic stainless steel pipe. Background The thin-wall austenitic stainless steel pipe is a thin-wall pipe made of austenitic stainless steel, is a core pipe in the fields of water supply, fuel gas, medical treatment, automobiles and the like by virtue of excellent corrosion resistance, plasticity, weldability and light weight characteristics, is mainly 304, 304L and 316L, and has the advantages of thin wall thickness and high precision; in the nondestructive testing process of the butt joint of the thin-wall austenitic stainless steel pipes, the ultrasonic phased array technology is widely applied due to the high resolution and flexible sound beam control capability. In the existing detection device, the centering and guiding mechanism lacks an effective radial self-adaptive adjustment mechanism, and when the pipe diameter has a small tolerance or ellipticity, the accurate alignment relation between the probe and the center of the welding seam is difficult to maintain, so that the repeatability of detection signals is reduced. Disclosure of Invention The invention aims to provide an ultrasonic phased array detection device for a butt joint of a thin-wall austenitic stainless steel pipe, which aims to solve the problems in the background technology. The ultrasonic phased array detection device comprises a mounting substrate, wherein the mounting substrate is two L-shaped plates, an annular centering enclasping mechanism is arranged between the two mounting substrates, the annular centering enclasping mechanism comprises a first semicircular plate, a second semicircular plate, a movable joint bolt, an annular scanning track, a mounting assembly, a V-shaped positioning assembly, a quick locking hasp, a quick locking lapping groove and a mounting seat, the bottoms of the first semicircular plate and the second semicircular plate are respectively hinged with one movable joint bolt, the annular scanning track is arranged on the surfaces of the first semicircular plate and the second semicircular plate, the mounting assembly is positioned in the annular scanning track and is in sliding connection with the annular scanning track, the mounting seat is embedded in the inner walls of the first semicircular plate and the second semicircular plate, the mounting seat is provided with a plurality of groups, each group of mounting seats is two, and each group of mounting seats is correspondingly provided with a V-shaped positioning assembly; the V-shaped positioning component comprises two mounting blocks and a threaded block, wherein the mounting blocks are fixedly connected with the threaded block, the threaded block is in threaded connection with a mounting seat, one side of the mounting block, far away from the threaded block, is provided with a mounting bracket which is in U-shaped arrangement, two roller frames are arranged between the mounting brackets, each roller frame side edge is provided with a V-shaped roller, the V-shaped roller is rotationally connected with the roller frames, the two V-shaped rollers are in V-shaped arrangement, a threaded driving rod is arranged between the two roller frames, the threaded driving rod penetrates through the two roller frames, the threaded driving rod is in threaded connection with the roller frames, the threaded directions of the threaded driving rods at the positions of the two roller frames are opposite, the axis of the V-shaped roller is parallel to the axis of the steel pipe to be tested, and the V-shaped roller and the outer wall of the steel pipe form line contact positioning through the V-shaped notch of the V-shaped roller. Preferably, the V-shaped positioning assembly further comprises a moving groove, the moving groove is formed in the side edge of the mounting block, a sliding rod is fixedly connected inside the moving groove, the surface of the sliding rod is slidably sleeved with a sliding block, a first compression spring is arranged on the side edge of the sliding block and sleeved on the surface of the sliding rod, a first hinge seat is arranged at the top of the sliding block, a connecting plate is arranged on the side edge of the first hinge seat and is hinged with the first hinge seat, a second hinge seat is arranged at the other end of the connecting plate, the other end of the connecting plate is hinged with the second hinge seat, the second hinge seat is fixedly connected with the roller frame, and a rotating handle is fixedly connected with one end of the threaded driving rod. Preferably, the installation component is including placing the board, place the board and sweep the track matchedly with annular, just place board and annular sweep track sliding connec