CN118169245A - Seamless steel pipe surface defect detection device - Google Patents
Seamless steel pipe surface defect detection device Download PDFInfo
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- CN118169245A CN118169245A CN202410593427.0A CN202410593427A CN118169245A CN 118169245 A CN118169245 A CN 118169245A CN 202410593427 A CN202410593427 A CN 202410593427A CN 118169245 A CN118169245 A CN 118169245A
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- 238000001514 detection method Methods 0.000 title claims abstract description 122
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 116
- 239000010959 steel Substances 0.000 title claims abstract description 116
- 230000007547 defect Effects 0.000 title claims abstract description 25
- 239000000523 sample Substances 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 238000007689 inspection Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The invention belongs to the technical field of detection equipment, in particular to a device for detecting surface defects of a seamless steel tube, which comprises the following components: a base; the detection assembly is used for detecting defects on the upper surface and two sides of the steel pipe; the driving assembly is used for driving the detection assembly to axially move along the steel pipe and is connected above the base through the connecting arm; the steel pipe is placed on the detection table; the detection assembly comprises a connecting frame, a swinging frame capable of swinging back and forth is rotatably connected to the surface of the connecting frame, the swinging direction of the swinging frame is vertical to the axial direction of the steel pipe, and a swinging motor for driving the swinging frame to swing back and forth is arranged on the connecting frame; the swinging frame is connected with a rotatable bracket, and a detection probe is arranged on the bracket; according to the invention, when the detection assembly is driven to axially move along the steel pipe by the driving assembly, the detection probe is driven to swing back and forth between the right upper side and the two sides of the steel pipe, and the right upper side and the two sides of the steel pipe are detected, so that the problems of low detection efficiency and detection omission of detection equipment are solved.
Description
Technical Field
The invention relates to the technical field of detection equipment, in particular to a seamless steel tube surface defect detection device.
Background
The accurate steel pipe all needs to carry out surface inspection to the steel pipe before leaving the factory and detects, see whether there is inside defect in the steel pipe after detecting, and then guarantee the quality of steel pipe, traditional detection mode needs a plurality of staff to cooperate the work, rotate the steel pipe of placing on the support through the manual uniform velocity, another operating personnel handheld inspection detector keeps its position unchanged, detect a flaw on the steel pipe surface of an annular face, after the steel pipe of its scanning length detects, handheld personnel again removes a section scanning distance, carry out the scanning of next annular face, until the surface of whole steel pipe all is detected once again, carry out the detection of next steel pipe again.
The traditional manual detection mode has low working efficiency and high operation intensity, severely restricts the detection efficiency, is only suitable for spot check, is only suitable for detecting the surface of the steel pipe by the existing detection equipment, only detects the upper surface of the steel pipe when the detection equipment moves along the axial direction of the steel pipe, can not detect the two sides and the lower surface, and can complete the comprehensive detection of the steel pipe only by a plurality of back and forth steps, thereby influencing the detection efficiency and being easy to miss detection.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a device for detecting the surface defects of a seamless steel tube, which detects the upper surface and two side surfaces of the steel tube in a swinging way of a detection assembly, overcomes the defects of low detection efficiency and omission in the prior art and aims to solve the problems in the background art.
In order to achieve the technical purpose, the specific technical scheme of the invention is as follows, and the device for detecting the surface defects of the seamless steel tube provided by the invention comprises the following components: a base; the detection assembly is used for detecting defects on the upper surface and two sides of the steel pipe; the driving assembly is used for driving the detection assembly to axially move along the steel pipe and is connected above the base through the connecting arm; the steel pipe is placed on the detection table; the detection assembly comprises a connecting frame, the surface of the connecting frame is rotationally connected with a swinging frame capable of swinging back and forth, the swinging direction of the swinging frame is vertical to the axial direction of the steel pipe, and a swinging motor for driving the swinging frame to swing back and forth is arranged on the connecting frame; the swinging frame is connected with a rotatable bracket, and a detection probe is arranged on the bracket; when the driving assembly drives the detection assembly to axially move along the steel pipe, the swing motor drives the swing frame to swing back and forth, and when the swing frame swings, the detection probe is driven to move back and forth between the upper side of the steel pipe and the two sides of the steel pipe, and the detection probe detects flaw on the upper surface and the two sides of the steel pipe.
As an optimal technical scheme, the lower end of the swing frame is connected with a liftable telescopic frame, the support is rotatably connected to the telescopic frame, the swing frame is provided with a rotating motor, the rotating motor is connected with a first rotary table, a connecting rod is connected between the first rotary table and the telescopic frame, and the telescopic frame is driven to reciprocate when the first rotary table rotates circumferentially.
As a preferable technical scheme of the invention, the connecting frame is fixedly connected with a section of arc-shaped rack through the telescopic rod, the bracket is connected with a gear which is always meshed with the rack, the gear is driven to rotate along the rack when the swinging frame swings, and the bracket is driven to rotate when the gear rotates, so that the detection probe is driven to rotate and always face the direction of the steel pipe.
As a preferable technical scheme of the invention, an arc-shaped groove is arranged on the side surface of the rack, an arc-shaped sliding block which is in sliding connection with the arc-shaped groove is fixedly connected to the telescopic frame, and the telescopic frame drives the rack to lift together when being telescopic.
As a preferable technical scheme of the invention, the swinging frame is fixedly connected with a coaxially rotating fixing frame, a vertical sliding hole is arranged on the fixing frame, and the swinging motor is fixedly connected with a second turntable for driving the swinging frame to swing back and forth.
As a preferable technical scheme of the invention, a sliding shaft which is in sliding connection with the sliding hole is arranged on the second rotary table, and the sliding shaft is driven to move up and down in the sliding hole when the second rotary table rotates, so that the fixing frame and the swinging frame are driven to swing back and forth.
As a preferable technical scheme of the invention, the driving assembly comprises a driving motor and a screw rod, and a threaded seat in threaded connection with the screw rod is arranged on the connecting frame.
As a preferable technical scheme of the invention, the detection table is connected with a pair of driving rollers rotating in the same direction, the driving rollers are fixedly connected with driving wheels for driving the steel pipe to rotate circumferentially, and the detection table is provided with a servo motor for driving the driving rollers to rotate.
The beneficial effects of the invention are as follows:
1. According to the invention, the detection assembly is driven to axially move along the steel pipe by the driving assembly, and the swinging frame swings back and forth left and right in the process of axially moving along the steel pipe to drive the detection probe to swing back and forth right above and between two sides of the steel pipe, so that the right upper side and the two sides of the steel pipe are detected, the detection area of the steel pipe is increased for a single time, and the detection efficiency is increased.
2. According to the invention, the gear and the rack with the arc-shaped section are arranged, and the gear rotates along the surface of the rack in the process of swinging the detection probe left and right, so that the detection probe is driven to rotate along with the rack, and the detection probe always faces the direction of the steel pipe, and the detection accuracy of the steel pipe is ensured.
Drawings
Fig. 1 is a schematic structural diagram of a device for detecting surface defects of a seamless steel tube according to the present invention.
Fig. 2 is a schematic structural diagram of a detection assembly according to the present invention.
FIG. 3 is another schematic view of the detecting unit according to the present invention.
Fig. 4 is a schematic structural diagram of a connecting frame according to the present invention.
Fig. 5 is a schematic structural diagram of a swing frame according to the present invention.
Fig. 6 is another angular schematic view of the swing frame according to the present invention.
Fig. 7 is a schematic structural diagram of a test table according to the present invention.
In the figure: 1. a base; 2. a connecting arm; 3. a detection assembly; 31. a connecting frame; 32. a swing frame; 321. a fixing frame; 322. a slide hole; 323. a telescopic frame; 324. a slide block; 33. a rack; 331. a telescopic rod; 332. an arc-shaped groove; 34. a swing motor; 35. a second turntable; 351. a slide shaft; 36. a rotating electric machine; 37. a first turntable; 38. a connecting rod; 39. a bracket; 310. a detection probe; 311. a screw seat; 312. a gear; 4. a detection table; 41. a servo motor; 42. a driving roller; 43. a driving wheel; 5. a drive assembly; 51. a driving motor; 52. and a screw rod.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Examples: the embodiment discloses a seamless steel pipe surface defect detection device, as shown in fig. 1-7, comprising: a base 1; the detection component 3 is used for detecting defects on the upper surface and two side surfaces of the steel pipe, the detection component 3 detects defects such as gap cracks of the steel pipe by emitting ultrasonic waves, the detection component 3 adopts swing type detection, and the detection component 3 swings left and right above the steel pipe to detect the upper surface and two side surfaces of the steel pipe; the driving component 5 is used for driving the detection component 3 to axially move along the steel pipe, and the driving component 5 is connected above the base 1 through the connecting arm 2; and a detection table 4, wherein the steel pipe is placed on the detection table 4.
Preferably, as shown in fig. 7, a pair of driving rollers 42 rotating in the same direction are connected to the detection table 4, driving wheels 43 are fixedly connected to the driving rollers 42 for driving the steel pipe to rotate circumferentially, and a servo motor 41 for driving the driving rollers 42 to rotate is mounted on the detection table 4; in the detection process, the steel pipe is in a static state, and when the detection assembly 3 detects from one end of the steel pipe to the other end, the servo motor 41 drives the steel pipe to rotate 180 degrees, so that the lower surface of the steel pipe is turned to the upper surface position.
Preferably, the driving assembly 5 comprises a driving motor 51 and a screw rod 52, the screw rod 52 is axially parallel to the steel pipe, a threaded seat 311 in threaded connection with the screw rod 52 is arranged on the detecting assembly 3, and the driving motor 51 drives the screw rod 52 to rotate so as to drive the detecting assembly 3 to move along the axial direction of the steel pipe.
The specific implementation method comprises the following steps: the drive assembly 5 drives the detection assembly 3 to move along the axial direction of the steel pipe, the detection assembly 3 swings back and forth in the moving process of the detection assembly 3 to detect the upper surface and the two side surfaces of the steel pipe, because the detection assembly 3 is always in an axial moving state, the axial moving speed of the detection assembly 3 is not easy to be too high to avoid missed detection, for example, the axial detecting range of the detection assembly 3 to the steel pipe is 10cm, when the detection assembly 3 swings back and forth, the axial moving distance of the detection assembly 3 needs to be smaller than or equal to 10cm, so that all positions of the steel pipe can be detected, when the detection assembly 3 detects the other end from one end of the steel pipe, the servo motor 41 drives the steel pipe to rotate 180 DEG on the detection table 4 to enable the lower surface of the steel pipe to turn to the upper surface, then the drive assembly 5 drives the detection assembly 3 to move along the axial direction of the steel pipe and detect the steel pipe again, and the detection assembly 3 only needs to move back and forth to complete comprehensive detection of the steel pipe.
As shown in fig. 2-6, the detection assembly 3 comprises a connecting frame 31, a threaded seat 311 is fixedly connected to the connecting frame 31, the connecting frame 31 is in an inverted U-shaped structure, a swinging frame 32 capable of swinging back and forth is rotatably connected to the surface of the connecting frame 31, the swinging direction of the swinging frame 32 is perpendicular to the axial direction of a steel pipe, the swinging amplitude of the swinging frame 32 to two sides can be set at 30-45 degrees, and a swinging motor 34 for driving the swinging frame 32 to swing back and forth is arranged on the connecting frame 31; the swinging frame 32 is connected with a rotatable bracket 39, a detection probe 310 is arranged on the bracket 39, the detection probe 310 can emit and receive ultrasonic waves, and the problems of whether defects exist in the steel pipe or not and the like are judged through computer data analysis according to the reflected ultrasonic images; the specific implementation method comprises the following steps: when the driving component 5 drives the detecting component 3 to axially move along the steel pipe, the swinging motor 34 drives the swinging frame 32 to swing back and forth, the swinging frame 32 drives the detecting probe 310 to reciprocate above the steel pipe and between two sides of the steel pipe when swinging, and the upper surface of the steel pipe is detected when the detecting probe 310 is right above the steel pipe; when the detection probes 310 swing to two sides of the steel pipe, the two sides of the steel pipe are detected, so that the detection probes 310 detect the upper surface and the two sides of the steel pipe in the moving process.
Preferably, a fixed frame 321 which coaxially rotates is fixedly connected to the swinging frame 32, the fixed frame 321 drives the swinging frame 32 to rotate together when rotating, a vertical sliding hole 322 is formed in the fixed frame 321, a second turntable 35 is fixedly connected to the swinging motor 34 and used for driving the swinging frame 32 to swing back and forth, and a sliding shaft 351 which is in sliding connection with the sliding hole 322 is arranged on the second turntable 35; the specific implementation method comprises the following steps: the swing motor 34 drives the second turntable 35 to rotate circumferentially, and when the second turntable 35 rotates, the sliding shaft 351 is driven to move up and down in the sliding hole 322, so that the fixed frame 321 and the swing frame 32 are driven to swing back and forth.
Preferably, the lower end of the swinging frame 32 is connected with a lifting telescopic frame 323, the bracket 39 is rotatably connected to the telescopic frame 323, the swinging frame 32 is provided with a rotating motor 36, the rotating motor 36 is connected with a first rotary table 37, a connecting rod 38 is connected between the first rotary table 37 and the telescopic frame 323, and the telescopic frame 323 is driven to reciprocate when the first rotary table 37 rotates circumferentially; when the swing frame 32 swings to the two side positions, the first turntable 37 drives the telescopic frame 323 to extend so as to ensure that the height of the detection probe 310 does not change too much, and when the swing frame 32 swings to the middle position, the first turntable 37 drives the telescopic frame 323 to retract so that the vertical distance between the detection probe 310 and the steel pipe is kept unchanged.
Preferably, the connecting frame 31 is fixedly connected with a section of arc-shaped rack 33 through a telescopic rod 331, teeth are arranged on the inner side of the rack 33, the rack 33 can be lifted, a gear 312 which is always meshed with the rack 33 is connected to the bracket 39, the gear 312 is driven to rotate along the rack 33 when the swinging frame 32 swings, the bracket 39 is driven to rotate when the gear 312 rotates, and the detection probe 310 is driven to rotate and always face the direction of the steel pipe; an arc-shaped groove 332 is formed in the side face of the rack 33, an arc-shaped sliding block 324 which is in sliding connection with the arc-shaped groove 332 is fixedly connected to the telescopic frame 323, and the telescopic frame 323 drives the rack 33 to lift together when being telescopic; the specific implementation method comprises the following steps: when the swinging frame 32 swings from the middle to two sides, the telescopic frame 323 stretches to drive the sliding block 324 to slide in the arc-shaped groove 332, the rack 33 is driven to descend, meanwhile, the gear 312 rotates on the surface of the rack 33, the bracket 39 is driven to rotate in the opposite direction of the swinging frame 32, and the detection probe 310 faces the direction of the steel pipe; when the swing frame 32 swings from two sides to the middle, the telescopic frame 323 shortens and drives the sliding block 324 to slide in the arc-shaped groove 332, drives the rack 33 to ascend, simultaneously rotates on the surface of the rack 33, drives the support 39 to rotate in the opposite direction of the swing frame 32, ensures that the detection probe 310 faces the direction of the steel pipe, and further ensures the detection quality of the steel pipe.
Working principle: during detection, the driving assembly 5 drives the detection assembly 3 to axially move along the steel pipe, the swinging motor 34 drives the swinging frame 32 to swing back and forth in the axial movement process of the detection assembly 3, the swinging frame 32 drives the detection probe 310 to move back and forth above the steel pipe and between two sides of the steel pipe when swinging, the detection probe 310 detects flaw detection on the upper surface and two sides of the steel pipe, meanwhile, the gear 312 rotates on the surface of the rack 33, and the bracket 39 is driven to rotate in the opposite direction of the swinging frame 32, so that the detection probe 310 always faces the direction of the steel pipe; when the detection assembly 3 detects the steel pipe from one end to the other end, the servo motor 41 drives the steel pipe to rotate 180 degrees on the detection table 4, so that the lower surface of the steel pipe is turned over to the upper surface position, then the driving assembly 5 drives the detection assembly 3 to move along the axial direction of the steel pipe again for detection, and the detection assembly 3 moves back and forth one time to complete the comprehensive detection of the steel pipe; the upper surface and the two side surfaces of the steel pipe are detected by the detection component 3 in the embodiment in a swinging mode, the single detection range of the steel pipe is improved, the steel pipe is comprehensively detected by the detection component 3 in a back-and-forth mode, and the detection efficiency of the steel pipe is improved.
Finally, it should be noted that: in the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
The foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A seamless steel pipe surface defect detection device, characterized by comprising:
A base (1);
the detection assembly (3) is used for detecting defects on the upper surface and two side surfaces of the steel pipe;
the driving assembly (5) is used for driving the detection assembly (3) to axially move along the steel pipe, and the driving assembly (5) is connected above the base (1) through the connecting arm (2);
a detection table (4), wherein the steel pipe is placed on the detection table (4);
the detection assembly (3) comprises a connecting frame (31), a swinging frame (32) capable of swinging back and forth is rotatably connected to the surface of the connecting frame (31), the swinging direction of the swinging frame (32) is perpendicular to the axial direction of the steel pipe, and a swinging motor (34) for driving the swinging frame (32) to swing back and forth is arranged on the connecting frame (31);
The swinging frame (32) is connected with a rotatable bracket (39), and a detection probe (310) is arranged on the bracket (39); when the driving assembly (5) drives the detection assembly (3) to axially move along the steel pipe, the swinging motor (34) drives the swinging frame (32) to swing back and forth, and when the swinging frame (32) swings, the detection probe (310) is driven to move back and forth between the upper part of the steel pipe and the two sides of the steel pipe, and the detection probe (310) detects flaw detection on the upper surface and the two sides of the steel pipe.
2. The seamless steel pipe surface defect detection device according to claim 1, wherein the lower end of the swinging frame (32) is connected with a liftable telescopic frame (323), a bracket (39) is rotatably connected to the telescopic frame (323), a rotating motor (36) is mounted on the swinging frame (32), a first rotary table (37) is connected to the rotating motor (36), a connecting rod (38) is connected between the first rotary table (37) and the telescopic frame (323), and the telescopic frame (323) is driven to reciprocate when the first rotary table (37) rotates circumferentially.
3. The seamless steel tube surface defect detection device according to claim 2, wherein the connecting frame (31) is fixedly connected with a section of arc-shaped rack (33) through a telescopic rod (331), the support (39) is connected with a gear (312) which is always meshed with the rack (33), the gear (312) is driven to rotate along the rack (33) when the swinging frame (32) swings, the support (39) is driven to rotate when the gear (312) rotates, and the detection probe (310) is driven to rotate and always face the direction of the steel tube.
4. A seamless steel pipe surface defect detecting device according to claim 3, wherein an arc-shaped groove (332) is arranged on the side surface of the rack (33), an arc-shaped sliding block (324) which is in sliding connection with the arc-shaped groove (332) is fixedly connected to the telescopic frame (323), and the rack (33) is driven to lift together when the telescopic frame (323) stretches and contracts.
5. The seamless steel tube surface defect detection device according to claim 4, wherein a fixing frame (321) which coaxially rotates is fixedly connected to the swinging frame (32), a vertical sliding hole (322) is formed in the fixing frame (321), and a second rotary table (35) is fixedly connected to the swinging motor (34) and used for driving the swinging frame (32) to swing back and forth.
6. The device for detecting the surface defects of the seamless steel tube according to claim 5, wherein a sliding shaft (351) which is in sliding connection with the sliding hole (322) is arranged on the second rotary table (35), and the sliding shaft (351) is driven to move up and down in the sliding hole (322) when the second rotary table (35) rotates, so that the fixing frame (321) and the swinging frame (32) are driven to swing back and forth.
7. A seamless steel tube surface defect detecting device according to claim 6, wherein the driving assembly (5) comprises a driving motor (51) and a screw rod (52), and the connecting frame (31) is provided with a thread seat (311) in threaded connection with the screw rod (52).
8. The seamless steel tube surface defect detection device according to claim 7, wherein the detection table (4) is connected with a pair of driving rollers (42) rotating in the same direction, driving wheels (43) are fixedly connected to the driving rollers (42) and used for driving the steel tube to rotate circumferentially, and a servo motor (41) used for driving the driving rollers (42) to rotate is arranged on the detection table (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410593427.0A CN118169245A (en) | 2024-05-14 | 2024-05-14 | Seamless steel pipe surface defect detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410593427.0A CN118169245A (en) | 2024-05-14 | 2024-05-14 | Seamless steel pipe surface defect detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118169245A true CN118169245A (en) | 2024-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410593427.0A Pending CN118169245A (en) | 2024-05-14 | 2024-05-14 | Seamless steel pipe surface defect detection device |
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| Country | Link |
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| CN (1) | CN118169245A (en) |
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| CN216978938U (en) * | 2021-06-24 | 2022-07-15 | 大冶特殊钢有限公司 | Ultrasonic flaw detection device for ultra-thick-wall steel pipe |
| CN219475595U (en) * | 2023-03-20 | 2023-08-04 | 钜溢（肇庆）钢管制造有限公司 | Flaw detection device for detecting weld joint of steel pipe |
| CN117368225A (en) * | 2023-10-17 | 2024-01-09 | 抚顺领航特殊钢有限公司 | Steel pipe inspection device |
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2024
- 2024-05-14 CN CN202410593427.0A patent/CN118169245A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1508540A (en) * | 2002-12-13 | 2004-06-30 | 攀枝花钢铁有限责任公司 | Steel rail on-line ultrasonic flaw detecting method and apparatus thereof |
| JP2007132726A (en) * | 2005-11-09 | 2007-05-31 | Hitachi Ltd | Ultrasonic flaw detector |
| CN101368932A (en) * | 2008-09-19 | 2009-02-18 | 哈尔滨工程大学 | Full-automatic detection apparatus suitable for multi-diameter pipe welding seam |
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