Clamping device for flaw detection of seamless steel pipe

Abstract

The utility model discloses a clamping device for seamless steel tube flaw detection, which relates to the technical field of seamless steel tube flaw detection, and comprises a steel tube main body and a clamping block, the clamping block is clamped and connected outside the steel tube main body, a rotating mechanism is arranged on the inner surface of the clamping block, and the bottom end of the clamping block is fixedly connected with a clamping mechanism. The left side and the right side of the clamping mechanism are fixedly connected with bases, the contact face of the clamping block and the steel pipe body is arc-shaped, the clamping force on the steel pipe body is increased, a groove is formed in the clamping block, the rotating mechanism is located in the groove, and the rotating mechanism and the arc-shaped face are located on the same horizontal line. Compared with an existing common clamping device for flaw detection of the seamless steel pipe, the clamping device for flaw detection of the seamless steel pipe has the advantages that the rotating mechanism drives the steel pipe main body to rotate, so that the steel pipe main body keeps rotating motion, each side of the steel pipe main body can be detected, the steel pipe is prevented from being static, and the detection head can only detect partial position of the steel pipe main body; therefore, the detection result has errors.

Description

Technical Field

[0001] The utility model relates to the technical field of seamless steel pipe flaw detection, in particular to a clamping device for seamless steel pipe flaw detection. Background Art

[0002] Seamless steel pipe is made by perforating a whole round steel. There is no weld on the surface of the steel pipe, which is called seamless steel pipe. According to the production method, seamless steel pipe can be divided into hot-rolled seamless steel pipe, cold-rolled seamless steel pipe, cold-drawn seamless steel pipe, extruded seamless steel pipe, jacking pipe, etc. The non-destructive testing methods for steel pipes mainly include ultrasonic testing, X-ray testing, eddy current testing, magnetic particle testing and penetration testing.

[0003] For example, a seamless steel pipe flaw detection device with application number CN202320164927.3 includes a base, a mounting slot provided at the top of the base, a clamping assembly movably connected to the mounting slot, and a threaded rod. A handle is provided on the right side of the threaded rod, and a plug rod is provided on the right side of the handle, with one end extending through the rod and engaging the base. This seamless steel pipe flaw detection device utilizes the clamping assembly to remove the plug rod, rotate the handle to rotate the threaded rod, and cause the threaded block to move the first mounting plate rightward, placing the seamless steel pipe in the left chuck. The handle is then reversed, causing the first mounting plate to move the right chuck leftward until it engages the right side of the seamless steel pipe. The plug rod is inserted to prevent the threaded rod from rotating, thereby providing a stable clamping of the seamless steel pipe. However, this seamless steel pipe flaw detection clamping device is not resistant to rotation of the steel pipe body, and the detection head has limitations, which can easily lead to errors in the detection results. Furthermore, the device is complex in structure and has high manufacturing costs.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a clamping device for flaw detection of seamless steel pipes is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a clamping device for flaw detection of seamless steel pipes to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a clamping device for flaw detection of seamless steel pipes, comprising a steel pipe body and a clamping block, the outer clamping connection of the steel pipe body is connected to the clamping block, and the inner surface of the clamping block is provided with a rotating mechanism, the bottom end of the clamping block is fixedly connected to the clamping mechanism, and the left and right sides of the clamping mechanism are fixedly connected to a base.

[0007] Preferably, the rotating mechanism includes a driving rod rotatably connected to the internal groove of the clamping block, and one end of the driving rod is fixedly connected to the output end of the driver, one end of the driving rod is rotatably connected to the active rotating drum, and the upper end of the active rotating drum is provided with a linkage rotating drum.

[0008] Preferably, the clamping mechanism includes a slider fixedly connected to the bottom position of the clamping block, and the bottom of the slider is fixedly connected to a rotating shaft, the bottom of the rotating shaft is rotatably connected to a rotating rod, and a servo motor is provided at the bottom of the rotating rod, and a slide rail is provided on the outside of the servo motor.

[0009] Preferably, a first threaded rod is provided inside the base, and an external thread of the first threaded rod is connected to a nut seat.

[0010] Preferably, the top of the nut seat is rotatably connected to a grinder, and the top of the base is fixedly connected to a support frame.

[0011] Preferably, one side of the support bracket is fixedly connected to a support frame, and a second threaded rod is provided inside the support frame.

[0012] Preferably, the external thread of the second threaded rod is connected to a moving block, and the bottom of the moving block is fixedly connected to a detection head.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model is provided with a rotating mechanism and a clamping mechanism. When the steel pipe body is inspected, the rotating mechanism drives the steel pipe body to rotate, so that the steel pipe body maintains the rotational motion, and each side of the steel pipe body can be inspected, thereby avoiding the steel pipe being stationary and the inspection head being able to inspect only part of the steel pipe body, resulting in errors in the inspection results and affecting subsequent use. The clamping mechanism can clamp steel pipe bodies of different diameters. The clamping force should be large enough to ensure that the steel pipe body does not move during the clamping process and does not crush the surface of the steel pipe body or cause deformation. The operation is convenient and the clamping action is fast, thereby improving productivity. The structure is simple and easy to manufacture, thereby reducing the cost of clamping.

[0015] 2. The utility model is provided with a grinder and a second threaded rod, so that different grinders can be replaced to grind the outer surface of the steel pipe body, thereby removing rust and impurities on the outer surface of the steel pipe body, making it easier for the detection head to detect the steel pipe body and avoiding the influence of rust and impurities on the detection effect. The second threaded rod drives the detection head to reciprocate on the top of the steel pipe body to perform a comprehensive detection of the steel pipe body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall front view structure of the utility model;

[0018] Figure 3 This is a schematic structural diagram of the rotating mechanism 3 of the present invention;

[0019] Figure 4 It is a structural diagram of the clamping mechanism 4 of the present invention.

[0020] In the figure: 1. Steel pipe body; 2. Clamping block; 3. Rotating mechanism; 301. Driving rod; 302. Driver; 303. Active rotating drum; 304. Linking rotating drum; 4. Clamping mechanism; 401. Slider; 402. Rotating shaft; 403. Rotating rod; 404. Servo motor; 405. Slide rail; 5. Base; 6. First threaded rod; 7. Nut seat; 8. Grinder; 9. Support frame; 10. Support frame; 11. Second threaded rod; 12. Detection head. DETAILED DESCRIPTION

[0021] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0022] like Figure 1 As shown, a clamping device for flaw detection of seamless steel pipes includes a steel pipe body 1 and a clamping block 2. The outer clamping connection of the steel pipe body 1 is provided with the clamping block 2, and the inner surface of the clamping block 2 is provided with a rotating mechanism 3. The bottom end of the clamping block 2 is fixedly connected with a clamping mechanism 4, and the left and right sides of the clamping mechanism 4 are fixedly connected with a base 5. The contact surface between the clamping block 2 and the steel pipe body 1 is arc-shaped, which increases the clamping force on the steel pipe body 1. A groove is provided inside the clamping block 2, and the rotating mechanism 3 is located inside the groove. The rotating mechanism 3 and the arc-shaped surface are on the same horizontal line. The rotating mechanism 3 drives the steel pipe body 1 to rotate, and the clamping mechanism 4 clamps different steel pipe bodies 1.

[0023] like Figure 3 As shown, the rotating mechanism 3 includes a driving rod 301 rotatably connected to the internal groove of the clamping block 2, and one end of the driving rod 301 is fixedly connected to the output end of the driver 302, one end of the driving rod 301 is rotatably connected to the active rotating cylinder 303, and the upper end of the active rotating cylinder 303 is provided with a linkage rotating cylinder 304, the driving rod 301 passes through the active rotating cylinder 303, driving the steel pipe body 1 on one side of the active rotating cylinder 303 to rotate, and the linkage rotating cylinder 304 rotates with the steel pipe body 1, and the two groups of linkage rotating cylinders 304 limit the steel pipe body 1, thereby improving the rotation stability of the steel pipe body 1.

[0024] Furthermore, the clamping mechanism 4 includes a slider 401 fixedly connected to the bottom position of the clamping block 2, and the bottom of the slider 401 is fixedly connected to a rotating shaft 402, the bottom of the rotating shaft 402 is rotatably connected to a rotating rod 403, and a servo motor (404) is provided at the bottom of the rotating rod 403, and a slide rail 405 is provided on the outside of the servo motor 404. The slider 401 moves in the slide groove opened inside the slide rail 405, and the rotating rod 403 drives the rotating shaft 402 symmetrical on both sides to rotate, thereby clamping and fixing the steel pipe body 1.

[0025] Furthermore, a first threaded rod 6 is provided inside the base 5, and the external thread of the first threaded rod 6 is connected to a nut seat 7, the top of the nut seat 7 is rotatably connected to a grinder 8, and the top of the base 5 is fixedly connected to a support frame 9. A groove is provided inside the base 5, and the first threaded rod 6 is arranged inside the groove. The first threaded rod 6 drives the grinder 8 on the top of the nut seat 7 to move back and forth, and different grinders 8 can be replaced to ensure the grinding efficiency of the outer surface of the steel pipe body 1.

[0026] Furthermore, one side of the support frame 9 is fixedly connected to a support frame 10, and a second threaded rod 11 is provided inside the support frame 10. The external thread of the second threaded rod 11 is connected to a moving block, and the bottom of the moving block is fixedly connected to a detection head 12. The second threaded rod 11 is located in a groove inside the support frame 10, driving the moving block to move back and forth. One end of the detection head 12 is electrically connected to a display screen to display the detection results.

[0027] Working principle: When using the clamping device for flaw detection of seamless steel pipes, first place the steel pipe body 1 inside the support frame 9 on the top of the base 5, start the servo motor 404 inside the clamping mechanism 4, and the rotating rod 403 drives the slider 401 on one side of the rotating shaft 402 to move inside the slide rail 405, driving the clamping block 2 on the top of the slider 401 to clamp the steel pipe body 1, replace the grinder 8 of appropriate size, and driven by the first threaded rod 6 inside the base 5, the grinder 8 grinds the outer surface of the steel pipe body 1, and then start the driver 302 inside the rotating mechanism 3, and the driving rod 301 drives the steel pipe body 1 on one side of the active rotating drum 303 to rotate on one side of the linked rotating drum 304, and finally the detection head 12 performs a comprehensive inspection of the steel pipe body 1 on the second threaded rod 11 inside the support frame 10. This is the working principle of the clamping device for flaw detection of seamless steel pipes.

Claims

1. A clamping device for flaw detection of seamless steel pipes, comprising a steel pipe body (1) and a clamping block (2), characterized in that: The outer clamping connection of the steel pipe body (1) is a clamping block (2), and the inner surface of the clamping block (2) is provided with a rotating mechanism (3). The bottom end of the clamping block (2) is fixedly connected to a clamping mechanism (4), and the left and right sides of the clamping mechanism (4) are fixedly connected to bases (5).

2. A clamping device for flaw detection of seamless steel pipes according to claim 1, characterized in that: The rotating mechanism (3) comprises a driving rod (301) rotatably connected to an inner groove of the clamping block (2), one end of the driving rod (301) being fixedly connected to an output end of a driver (302), one end of the driving rod (301) being rotatably connected to an active rotating drum (303), and an upper end of the active rotating drum (303) being provided with a linked rotating drum (304).

3. The clamping device for flaw detection of seamless steel pipe according to claim 1, characterized in that: The clamping mechanism (4) comprises a slider (401) fixedly connected to the bottom position of the clamping block (2), and the bottom of the slider (401) is fixedly connected to a rotating shaft (402), the bottom of the rotating shaft (402) is rotatably connected to a rotating rod (403), and a servo motor (404) is provided at the bottom of the rotating rod (403), and a slide rail (405) is provided on the outside of the servo motor (404).

4. The clamping device for flaw detection of seamless steel pipe according to claim 1, characterized in that: A first threaded rod (6) is provided inside the base (5), and a nut seat (7) is threadedly connected to the outside of the first threaded rod (6).

5. A clamping device for flaw detection of seamless steel pipes according to claim 4, characterized in that: The top of the nut seat (7) is rotatably connected to a grinder (8), and the top of the base (5) is fixedly connected to a support frame (9).

6. A clamping device for flaw detection of seamless steel pipes according to claim 5, characterized in that: One side of the support frame (9) is fixedly connected to a support frame (10), and a second threaded rod (11) is provided inside the support frame (10).

7. A clamping device for flaw detection of seamless steel pipes according to claim 6, characterized in that: The external thread of the second threaded rod (11) is connected to a moving block, and the bottom of the moving block is fixedly connected to a detection head (12).

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