An ultrasonic flaw detection system for internal defects of rolled tubes

Abstract

The utility model relates to the technical field of ultrasonic flaw detection systems, and in particular to an ultrasonic flaw detection system for internal defects of a rolled tube blank, comprising a flaw detection system body and a gantry, wherein the top of the flaw detection system body is fixedly connected to the gantry, one side of the gantry is fixedly connected to an ultrasonic probe, the top of the flaw detection system body is fixedly connected to a support assembly, the upper end of the flaw detection system body is installed with a drive assembly, the upper end of the flaw detection system body is fixedly connected to a through-hole limit rotating shell, the inner side of the through-hole limit rotating shell is rotatably connected to a built-in disk assembly, the support assembly comprises a folding support, the outer side of the folding support is rotatably connected to a first arc rotating wheel, the inner side of the first arc rotating wheel is provided with a ball rotating groove, and the inner side of the ball rotating groove is installed with a ball. In the utility model, the device can rotate the rolled tube blank and move it at the same time, control the activity trajectory of the rolled tube blank, avoid the phenomenon that the rolled tube blank is not fully scanned, and improve the accuracy of flaw detection on the rolled tube blank.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic flaw detection systems, in particular to an ultrasonic flaw detection system for internal defects of a rolled tube blank. Background Art

[0002] The ultrasonic flaw detection system for internal defects of rolled tube billets is a technology to improve the quality control of metal tubes in the production process, especially in detecting internal defects of tube billets. Ultrasonic flaw detection is a widely used non-destructive testing technology that uses the propagation characteristics of ultrasonic waves in materials to detect internal defects.

[0003] When flaw detection is performed on rolled tube billets, an ultrasonic probe is used for flaw detection. However, the ultrasonic probe is in a fixed state. All parts of the rolled tube billet need to be flaw detected. If the moving trajectory of the rolled tube billet cannot be controlled, the flaw detection area may not be completely scanned. Therefore, an ultrasonic flaw detection system for internal defects of rolled tube billets is proposed to address the above problems. Utility Model Content

[0004] The utility model aims to provide an ultrasonic flaw detection system for internal defects of a rolled tube billet, so as to solve the problem that if the moving track of the rolled tube billet cannot be controlled, the flaw detection area will not be completely scanned.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An ultrasonic flaw detection system for internal defects of a rolled tube blank comprises a flaw detection system body and a gantry, wherein the top of the flaw detection system body is fixedly connected to the gantry, one side of the gantry is fixedly connected to an ultrasonic probe, the top of the flaw detection system body is fixedly connected to a support assembly, the upper end of the flaw detection system body is installed with a drive assembly, the upper end of the flaw detection system body is fixedly connected to a through-hole limit rotating shell, the inner side of the through-hole limit rotating shell is rotatably connected to a built-in disk assembly, the support assembly comprises a folding support, the outer side of the folding support is rotatably connected to a first arc rotating wheel, and the first arc rotating wheel A ball groove is provided on the inner side, a ball is installed on the inner side of the ball groove, the driving assembly includes a servo motor, a gear is fixedly connected to the end of the main shaft of the servo motor, a semi-threaded rod is fixedly connected to one side of the gear, a threaded slide is spirally connected to the outer side of the semi-threaded rod, a plastic turntable is rotatably connected to the inner side of the threaded slide, a limiting slide rod is slidably connected to the inner side of the threaded slide, the built-in disk assembly includes a hollow gear, the outer side of the hollow gear is fixedly connected to a limited circle, the inner side of the limited circle is fixedly connected to a supporting roller, and the outer side of the supporting roller is rotatably connected to a second arc rotating wheel.

[0007] As a further optimization of the present invention, the front and rear ends of the flaw detection system body are fixed with mounting plates, the number of the gantry and the ultrasonic probe are both two, and the lower end of the ultrasonic probe is aligned with the rolled tube blank.

[0008] As a further optimization of the present invention, there are several groups of folding pillars, each group has two folding pillars, a turning hole is opened on the inner side of the first arc rotating wheel, the outer side of the first arc rotating wheel is an arc structure, and a rolled tube blank is arranged on the upper end of the first arc rotating wheel.

[0009] As a further optimization of the present invention, the shape of the ball rotating groove is a spherical opening, the shape of the ball is a sphere, the ball rotating groove and the ball are in one-to-one correspondence, and the outer side of the ball is in contact with the lower end of the rolled tube blank.

[0010] As a further optimization of the present invention, the servo motor is fixedly connected to one side of the flaw detection system body, a thread is installed at the rear of the semi-threaded rod, the rear end of the semi-threaded rod is rotatably connected to the inner side of the upper end of the flaw detection system body, and the outer side of the gear is meshed with the outer side of the hollow gear.

[0011] As a further optimization of the present invention, the inner side of the plastic turntable fits with the rear end of the rolled tube blank, the limiting slide rod is in the shape of a cylinder, the front and rear ends of the limiting slide rod are fixedly connected to the mounting plates of the uniform flaw detection system body, and the plastic turntable is sleeved on the outside of the rolled tube blank.

[0012] As a further optimization of the present invention, the outer side of the hollow gear has fixed teeth, the inner side of the hollow gear is hollow, the hollow gear is connected to the inner side of the through-hole limiting rotating shell by limiting the rotation in circles, the inner side of the through-hole limiting rotating shell is hollow, the shape of the second arc rotating wheel is the same as the first arc rotating wheel, and the number of the second arc rotating wheels is several.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the utility model, by means of the gantry, ultrasonic probe, support assembly, drive assembly, built-in disk assembly and through-hole limit rotating shell, the device can rotate the rolled tube blank and move at the same time, control the moving trajectory of the rolled tube blank, avoid the phenomenon that the rolled tube blank is not fully scanned, and improve the accuracy of flaw detection on the rolled tube blank. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the ultrasonic probe of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the support assembly of the utility model;

[0018] Figure 4 For this utility model Figure 3 A schematic diagram of the structure at A;

[0019] Figure 5 This is a schematic diagram of the structure of the drive assembly of the utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the built-in disk assembly of the utility model.

[0021] In the figure: 1. flaw detection system body; 2. gantry; 3. ultrasonic probe; 4. support assembly; 41. folding pillar; 42. first arc rotating wheel; 43. ball rotating groove; 44. ball; 5. driving assembly; 51. servo motor; 52. semi-threaded rod; 53. gear; 54. threaded slide plate; 55. limit slide bar; 56. plastic turntable; 6. built-in disk assembly; 61. hollow gear; 62. limited to rotating circle; 63. support roller; 64. second arc rotating wheel; 7. through-hole limit rotating shell. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0024] See also Figure 1-6 , the utility model provides a technical solution:

[0025] An ultrasonic flaw detection system for internal defects of a rolled tube blank comprises a flaw detection system body 1 and a gantry 2, wherein the top of the flaw detection system body 1 is fixedly connected to the gantry 2, one side of the gantry 2 is fixedly connected to an ultrasonic probe 3, the top of the flaw detection system body 1 is fixedly connected to a support assembly 4, the upper end of the flaw detection system body 1 is equipped with a drive assembly 5, the upper end of the flaw detection system body 1 is fixedly connected to a through-hole limit rotating shell 7, the inner side of the through-hole limit rotating shell 7 is rotatably connected to a built-in disk assembly 6, the support assembly 4 comprises a folding support 41, the outer side of the folding support 41 is rotatably connected to a first arc rotating wheel 42, and the inner side of the first arc rotating wheel 42 is provided with a ball rotating groove 4 3. A ball 44 is installed inside the ball groove 43. The driving assembly 5 includes a servo motor 51. A gear 53 is fixedly connected to the end of the main shaft of the servo motor 51. A semi-threaded rod 52 is fixedly connected to one side of the gear 53. A threaded slide 54 is spirally connected to the outer side of the semi-threaded rod 52. A plastic turntable 56 is rotatably connected to the inner side of the threaded slide 54. A limited position slide rod 55 is slidably connected to the inner side of the threaded slide 54. The built-in disk assembly 6 includes a hollow gear 61. A limited rotating circle 62 is fixedly connected to the outer side of the hollow gear 61. A supporting roller 63 is fixedly connected to the inner side of the limited rotating circle 62. A second arc rotating wheel 64 is rotatably connected to the outer side of the supporting roller 63.

[0026] As a further implementation of this scheme, the front and rear ends of the flaw detection system body 1 are fixed with mounting plates, the number of gantry 2 and ultrasonic probe 3 are two, and the lower end of the ultrasonic probe 3 is aligned with the rolled tube billet, so as to facilitate comprehensive flaw detection of the rolled tube billet;

[0027] As a further implementation of the present invention, the number of the folding pillars 41 is several groups, each group of the folding pillars 41 has two, a rotating hole is opened inside the first arc rotating wheel 42, the outer side of the first arc rotating wheel 42 is an arc structure, and a rolled tube blank is arranged on the upper end of the first arc rotating wheel 42 to support the rolled tube blank without hindering the movement and rotation of the rolled tube blank;

[0028] As a further implementation of this solution, the ball groove 43 is shaped like a sphere, the ball 44 is shaped like a sphere, the ball groove 43 and the ball 44 correspond one to one, and the outer side of the ball 44 fits with the lower end of the rolled tube blank to reduce the friction when the rolled tube blank moves;

[0029] As a further implementation of the present scheme, the servo motor 51 is fixedly connected to one side of the flaw detection system body 1, a thread is installed at the rear of the semi-threaded rod 52, the rear end of the semi-threaded rod 52 is rotatably connected to the inner side of the upper end of the flaw detection system body 1, and the outer side of the gear 53 is meshed with the outer side of the hollow gear 61. After the servo motor 51 is started, the threaded slide plate 54 is driven to move at the same time, and the built-in disk assembly 6 rotates;

[0030] As a further implementation of this solution, the inner side of the plastic turntable 56 is fitted with the rear end of the rolled tube blank, the limiting slide bar 55 is cylindrical in shape, the front and rear ends of the limiting slide bar 55 are fixedly connected to the mounting plate of the uniform flaw detection system body 1, and the plastic turntable 56 is sleeved on the outside of the rolled tube blank to limit and support the rolled tube blank, while not hindering ultrasonic flaw detection;

[0031] As a further implementation scheme of the present scheme, the outer side of the hollow gear 61 has fixed teeth, the inner side of the hollow gear 61 is hollow, the hollow gear 61 is rotatably connected to the inner side of the through-hole limiting rotating shell 7 through the limiting rotating circle 62, the inner side of the through-hole limiting rotating shell 7 is hollow, the shape of the second arc rotating wheel 64 is the same as the first arc rotating wheel 42, and the number of the second arc rotating wheels 64 is several, which can increase the friction with the rolled tube blank and prevent the rolled tube blank from being damaged.

[0032] Working process: When the device is in use, the external power supply is energized. When the rolled tube billet needs to be inspected, the rolled tube billet is passed through the hollow gear 61, so that the outer side of the rolled tube billet fits with the outer side of the second arc wheel 64, and then the rear end of the rolled tube billet is slid inside the plastic turntable 56. The shape of the second arc wheel 64 is an arc structure, which increases the contact area with the rolled tube billet. The second arc wheel 64 is made of rubber, which can increase the friction with the rolled tube billet and prevent the rolled tube billet from being damaged. When the second arc rotating wheel 64 is between the two arc rotating wheels, the second arc rotating wheel 64 rotates, and the second arc rotating wheel 64 is rotatably connected to the outside of the two supporting rollers 63. The supporting rollers 63 support and limit the second arc rotating wheel 64. The servo motor 51 is started, and the servo motor 51 drives the semi-threaded rod 52 and the gear 53 to rotate at the same time. The rear end of the semi-threaded rod 52 is rotatably connected to the inner side of the mounting plate of the flaw detection system body 1, which plays a role in limiting the semi-threaded rod 52. The rotation of the semi-threaded rod 52 drives the threaded slide plate 54 spirally connected on the outside to move. The inner side of the threaded slide plate 54 is slidably connected to the outer side of the limiting slide bar 55, which plays a role in limiting the movement of the threaded slide plate 54. The movement of the threaded slide plate 54 drives the plastic turntable 56 to move at the same time, and the plastic turntable 56 drives the rolled tube blank to move. The rotation of the gear 53 drives the meshing hollow gear 61 to rotate. The hollow gear 61 is connected to the inner side of the through-hole limiting rotating shell 7 through the limited rotating circle 62. The inner side of the through-hole limiting rotating shell 7 is provided with a groove in the shape of a limited rotating circle 62, which plays a role in limiting the hollow gear 61. The hollow gear 61 The rotation drives the second arc rotating wheel 64 to rotate through the supporting roller 63, and the second arc rotating wheel 64 drives the rolled tube blank to rotate. At this time, the rolled tube blank moves and rotates at the same time. When the rolled tube blank rotates, it drives the plastic turntable 56 to rotate. The plastic turntable 56 is made of plastic material and does not affect the ultrasonic penetration. When the rolled tube blank rotates, the second arc rotating wheel 64 rotates under the action of friction. The rolled tube blank can be covered by the ultrasonic probe 3. The ultrasonic probe 3 is set at the front and rear ends of the flaw detection system body 1, and the rolled tube blank can be fully detected.

[0033] 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. An ultrasonic flaw detection system for internal defects of a rolled tube, comprising a flaw detection system body (1) and a gantry (2), characterized in that: The top of the flaw detection system body (1) is fixedly connected to a gantry (2), one side of the gantry (2) is fixedly connected to an ultrasonic probe (3), the top of the flaw detection system body (1) is fixedly connected to a support assembly (4), the upper end of the flaw detection system body (1) is equipped with a drive assembly (5), the upper end of the flaw detection system body (1) is fixedly connected to a through-hole limit rotating shell (7), the inner side of the through-hole limit rotating shell (7) is rotatably connected to a built-in disk assembly (6), the support assembly (4) comprises a folding support (41), the outer side of the folding support (41) is rotatably connected to a first arc rotating wheel (42), the inner side of the first arc rotating wheel (42) is provided with a ball rotating groove (43), the inner side of the ball rotating groove (43) is equipped with a ball bearing (44), The driving assembly (5) comprises a servo motor (51), a gear (53) is fixedly connected to the end of the main shaft of the servo motor (51), a semi-threaded rod (52) is fixedly connected to one side of the gear (53), a threaded slide plate (54) is spirally connected to the outer side of the semi-threaded rod (52), a plastic turntable (56) is rotatably connected to the inner side of the threaded slide plate (54), a limit slide bar (55) is slidably connected to the inner side of the threaded slide plate (54), and the built-in disk assembly (6) comprises a hollow gear (61), the outer side of the hollow gear (61) is fixedly connected to a limit rotation circle (62), the inner side of the limit rotation circle (62) is fixedly connected to a support roller (63), and the outer side of the support roller (63) is rotatably connected to a second arc rotating wheel (64).

2. The ultrasonic flaw detection system for internal defects of a rolled tube according to claim 1, characterized in that: The front and rear ends of the flaw detection system body (1) are both fixed with mounting plates, the gantry (2) and the ultrasonic probe (3) are both provided in two numbers, and the lower end of the ultrasonic probe (3) is aligned with the rolled tube blank.

3. The ultrasonic flaw detection system for internal defects of a rolled tube according to claim 1, characterized in that: The folding pillars (41) are provided in a plurality of groups, each group of the folding pillars (41) being two in number; a rotating hole is provided on the inner side of the first arc rotating wheel (42); the outer side of the first arc rotating wheel (42) is an arc structure; and a rolled tube blank is provided on the upper end of the first arc rotating wheel (42).

4. The ultrasonic flaw detection system for internal defects of a rolled tube according to claim 1, characterized in that: The ball rotating groove (43) is shaped like a sphere, the ball (44) is shaped like a sphere, the ball rotating groove (43) and the ball (44) correspond one to one, and the outer side of the ball (44) is in contact with the lower end of the rolled tube blank.

5. The ultrasonic flaw detection system for internal defects of a rolled tube according to claim 1, characterized in that: The servo motor (51) is fixedly connected to one side of the flaw detection system body (1); a thread is installed at the rear of the semi-threaded rod (52); the rear end of the semi-threaded rod (52) is rotatably connected to the inner side of the upper end of the flaw detection system body (1); and the outer side of the gear (53) is meshed with the outer side of the hollow gear (61).

6. The ultrasonic flaw detection system for internal defects of a rolled tube according to claim 1, characterized in that: The inner side of the plastic turntable (56) is fitted with the rear end of the rolled tube blank. The limiting slide bar (55) is in the shape of a cylinder. The front and rear ends of the limiting slide bar (55) are fixedly connected to the mounting plate of the uniform flaw detection system body (1). The plastic turntable (56) is sleeved on the outside of the rolled tube blank.

7. The ultrasonic flaw detection system for internal defects of a rolled tube according to claim 1, characterized in that: The hollow gear (61) has fixed teeth on the outside, and the inside of the hollow gear (61) is hollow. The hollow gear (61) is rotatably connected to the inside of the through-hole limit rotating shell (7) through a limiting rotating circle (62). The inside of the through-hole limit rotating shell (7) is hollow. The shape of the second arc rotating wheel (64) is the same as that of the first arc rotating wheel (42), and the number of the second arc rotating wheels (64) is multiple.

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