CN221007371U - DR film shooting detection tool for seal head welding seam - Google Patents
DR film shooting detection tool for seal head welding seam Download PDFInfo
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- CN221007371U CN221007371U CN202322855843.7U CN202322855843U CN221007371U CN 221007371 U CN221007371 U CN 221007371U CN 202322855843 U CN202322855843 U CN 202322855843U CN 221007371 U CN221007371 U CN 221007371U
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- 238000001514 detection method Methods 0.000 title claims abstract description 124
- 238000003466 welding Methods 0.000 title claims abstract description 67
- 239000000523 sample Substances 0.000 claims abstract description 59
- 238000007789 sealing Methods 0.000 claims abstract description 57
- 238000003384 imaging method Methods 0.000 claims abstract description 55
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract 1
- 230000003028 elevating effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000007689 inspection Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model discloses a DR film shooting detection tool for a seal head welding seam, which comprises a probe rod lifting device and a detection trolley, wherein the probe rod lifting device and the detection trolley are arranged in a flaw detection room; the probe rod lifting device drives the probe rod with the ray tube and the probe rod with the imaging plate to lift up and down; an X-ray tube device is arranged at the front end of the tube probe rod, an imaging plate driving device is arranged on the imaging plate probe rod, and the imaging plate driving device comprises a driving machine case and an imaging plate supporting rod; the front end of the imaging plate supporting rod is provided with an imaging plate; the detection trolley is provided with a sealing head clamping lifting device, and the sealing head clamping lifting device is used for clamping the sealing head and lifting the clamped sealing head to a set detection height; the detection trolley is provided with a seal head trolley. The tool adopts an X-ray digital imaging technology to detect the welding seam of the sealing head, does not need a negative film, and has low use cost and high efficiency. The detection method comprises seven steps, so that the central welding seam of the sealing head can be detected, and welding seams on two sides of the central welding seam can be detected.
Description
Technical Field
The utility model relates to the technical field of welding seam detection equipment, in particular to a detection tool for detecting welding seams of end sockets at two ends of a tank of a low-temperature liquid tank wagon, and particularly relates to a DR film shooting detection tool for welding seams of end sockets.
Background
A cryogenic liquid tank car tank is a pressure vessel for transporting cryogenic liquid and is typically comprised of an outer tank and an inner tank mounted within the outer tank. Both the outer tank and the inner tank are formed by welding a cylindrical tank body and sealing heads at two ends. Because the tank is usually large in size, the end sockets of the tank are also welded and spliced by a plurality of arc-shaped steel plates.
In order to ensure the quality of the welding seam, the nondestructive detection of the welding seam of the end enclosure in China is basically carried out by adopting X-ray detection and ultrasonic detection at present. However, the common X-ray detection requires a negative film, the direct cost and the process cost are relatively high, and the production efficiency is low. Ultrasonic detection is seldom used for end socket joint detection because of limitations, and X-ray detection is preferentially suggested in the specification.
DR film shooting detection, namely X-ray digital imaging detection, is rarely used for nondestructive detection of the welding seam of the sealing head, and only a small number of domestic manufacturers adopt DR to detect the spliced welding seam at the center of the sealing head, so that the comprehensive detection of the welding seam of the sealing head cannot be performed.
Disclosure of Invention
Aiming at the current state of the art, the utility model provides a DR film shooting detection tool for a seal head welding line, which has low use cost and high efficiency, can carry out comprehensive nondestructive detection on the seal head welding line, and has simple detection method and easy operation.
The technical scheme adopted for solving the technical problems is as follows:
A DR film shooting detection tool for a seal head welding seam comprises a probe rod lifting device arranged in a flaw detection room and a detection trolley for driving the seal head to move forwards and backwards for detection; the probe rod lifting device drives the probe rod with the ray tube and the probe rod with the imaging plate to lift up and down; an X-ray tube device is arranged at the front end of the tube probe rod, an imaging plate driving device is arranged on the imaging plate probe rod, and the imaging plate driving device comprises a driving machine box fixedly arranged on the imaging plate probe rod and an imaging plate supporting rod which is driven by the driving machine box to perform up-and-down rotation and telescopic movement; the front end of the imaging plate supporting rod is provided with an imaging plate which is used for detecting a welding line on the sealing head in a matched mode with the X-ray tube device; the detection trolley is provided with a seal head clamping lifting device at a position relatively close to the front end, and the seal head clamping lifting device is used for clamping the seal head and lifting the clamped seal head to a set detection height; the detection trolley is provided with a sealing head trolley for conveying the sealing head to a clamping area of the sealing head clamping lifting device.
In order to optimize the technical scheme, the specific measures adopted further comprise:
The probe rod lifting device comprises a device frame capable of moving left and right along a guide channel paved in a flaw detection room, and a traveling motor arranged on the device frame and used for driving the device frame to travel; the front of the device frame is provided with a lifting guide plate, and an upper sliding block and a lower sliding block which are arranged on the lifting guide plate in a sliding way; the tail end of the ray tube probe rod is fixedly arranged on the upper sliding block, and the tail end of the imaging plate probe rod is fixedly arranged on the lower sliding block; the device frame is provided with an upper slide block servo motor for driving the upper slide block to lift up and down and a lower slide block servo motor for driving the lower slide block to lift up and down.
The seal head is formed by splicing four arc-shaped steel plates, and three arc-shaped welding seams are formed after the four steel plates are spliced; the three welding seams sequentially comprise a left welding seam, a center welding seam and a right welding seam from left to right.
The detection trolley is provided with a movable guide rail for the head trolley to move back and forth along the central axis of the detection trolley; the end socket trolley is provided with a rotary table which enables the starting point of the end socket center welding seam to be opposite to the central axis of the detection trolley through rotation, three support columns for supporting the end socket are fixedly arranged on the rotary table, and the three support columns are distributed in an isosceles triangle shape.
The sealing head clamping lifting device consists of two sealing head clamping lifters which can independently control lifting; one of the two seal head clamping lifters is arranged at the left side of the detection trolley, and the other one of the two seal head clamping lifters is arranged at the right side of the detection trolley; the clamping area is located between the left side end socket clamping lifter and the right side end socket clamping lifter.
The sealing head clamping lifter comprises a lifting frame which is longitudinally arranged, a lifting screw is rotatably arranged in the lifting frame, a clamping bracket which can move up and down along the lifting frame is spirally driven on the lifting screw, the clamping bracket is matched with the bottom clamping supports of steel plates on two sides of the sealing head, and a clamping lifting motor which is used for driving the lifting screw to rotate and drive the clamping bracket to lift is arranged at the top of the lifting frame.
The flaw detection room is provided with a lead door and a lead door motor for driving the lead door to open or close; and a detection guide rail for detecting the front and back movement of the trolley is paved on the ground in the flaw detection room.
Compared with the prior art, the X-ray tube device is arranged at the front end of the X-ray tube probe rod, namely the X-ray digital imaging device, and the X-ray tube device is used for detecting the welding seam of the end socket, so that a negative film is not needed, the use cost is low, and the efficiency is high. Install head centre gripping elevating gear on the detection dolly, can utilize head centre gripping elevating gear to fix a position the head centre gripping, can also pass through head centre gripping elevating gear upper and lower rotatory head simultaneously, make the arc welding seam of different positions on the head all can reach the required angle requirement of detection. The detection method is simple and efficient, can detect the central welding line of the center of the seal head, can detect the welding lines on two sides of the central welding line, and is comprehensive and efficient in detection.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of the structure of the probe rod lifting device of the utility model;
FIG. 3 is a schematic diagram of the head clamping elevator of the present utility model;
FIG. 4 is a schematic structural view of the head trolley of the present utility model;
FIG. 5 is a schematic view of the structure of the imaging plate driving apparatus of the present utility model;
Fig. 6 is a schematic structural view of the closure head of the present utility model.
Description of the embodiments
Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings.
Fig. 1 to 6 are schematic structural views of the present utility model.
Wherein the reference numerals are as follows: guide channel D, flaw detection room F, lead door F1, lead door motor F2, seal head T, left weld T1, center weld T2 and right weld T3, probe rod lifting device 1, device frame 11, traveling motor 12, lifting guide 13, upper slider 14, lower slider 15, upper slider servo motor 16, lower slider servo motor 17, ray tube probe rod 2, imaging plate probe rod 3, X-ray tube device 4, imaging plate driving device 5, driving case 51, imaging plate support rod 52, imaging plate 6, detection trolley 7, seal head clamping lifting device 8, seal head clamping lifting device 81, lifting frame 811, lifting screw 812, clamping bracket 813, clamping lifting motor 814, seal head trolley 9, turntable 91 and support column 92.
As shown in fig. 1 to 6, the utility model discloses a detection tool for detecting a seal head welding seam by adopting a DR film, namely a detection tool for detecting the seal head welding seam by adopting an X-ray digital imaging device. The detection tool comprises a probe rod lifting device 1 and a detection trolley 7 which are arranged in a flaw detection room F, wherein the detection trolley 7 is used for carrying a sealing head T to move forwards from an initial detection position according to a speed set by a program, and when one welding seam on the sealing head T is detected, the detection trolley 7 can carry the sealing head T to retract to the initial detection position and wait for advancing again to detect the other welding seam. The upper and lower distribution of probe rod elevating gear 1 is provided with ray tube probe rod 2 and imaging plate probe rod 3, and probe rod elevating gear 1 can drive ray tube probe rod 2 and imaging plate probe rod 3 synchronous left and right movement (refer to inwards or outwards to the figure 1), can also drive ray tube probe rod 2 and imaging plate probe rod 3 respectively simultaneously and rise or descend to adjust the height of ray tube probe rod 2 and imaging plate probe rod 3 and the upper and lower distance between the two. The front end of the X-ray tube probe rod 2 is provided with an X-ray tube device 4, the X-ray tube device 4 is an X-ray digital imaging device, and the X-ray digital imaging device can rotate and swing up and down, front and back under the control of a program. An imaging plate driving device 5 is arranged on the imaging plate probe rod 3. As shown in fig. 5, the imaging plate driving device 5 includes a driving housing 51 fixedly mounted on the imaging plate probe 3, and an imaging plate support rod 52 driven by the driving housing 51 to perform up-and-down rotation and telescopic movement. The imaging plate 6 for detecting the welding seam on the sealing head T by matching with the X-ray tube device 4 is arranged at the front end of the imaging plate supporting rod 52. The imaging plate 6 can complete complex space trend movement by the combined movement of the imaging plate driving device 5 and the imaging plate probe rod 3. The detection trolley 7 is provided with a sealing head clamping lifting device 8 at a position relatively close to the front end. The seal head clamping lifting device 8 is used for clamping and positioning the seal head T and lifting the clamped seal head T to a detection height set by a program. The detection trolley 7 is provided with a closure trolley 9, and the closure trolley 9 is used for conveying closures T, and can walk on the detection trolley 7 so as to convey the closures T into a clamping area of the closure clamping lifting device 8 for the closure clamping lifting device 8 to clamp.
In the embodiment, as shown in fig. 2, the probe rod lifting device 1 of the present utility model comprises a device frame 11 capable of moving left and right along a guide channel D laid in a flaw detection room F, and a traveling motor 12 mounted on the device frame 11 for driving the device frame 11 to travel. The front of the device frame 11 is provided with a lifting guide plate 13, and an upper slider 14 and a lower slider 15 which can slide up and down along the guide of the lifting guide plate 13. The tail end of the ray tube probe rod 2 is fixedly arranged on the upper sliding block 14, and the tail end of the imaging plate probe rod 3 is fixedly arranged on the lower sliding block 15. The device frame 11 is provided with an upper slide block servo motor 16 for driving the upper slide block 14 to drive the ray tube probe rod 2 to lift up and down and a lower slide block servo motor 17 for driving the lower slide block 15 to drive the imaging plate probe rod 3 to lift up and down.
In the embodiment, as shown in fig. 6, the seal head T of the present utility model is formed by splicing four arc-shaped steel plates, and the four steel plates are spliced to form three arc-shaped weld seams. The three welding seams sequentially comprise a left welding seam T1, a center welding seam T2 and a right welding seam T3 from left to right. The end socket T is in a circular arc structure, when the port plane of the end socket T is parallel to the horizontal plane, the plane of the center welding line T2 of the end socket T is exactly perpendicular to the horizontal plane, and the detection of the center welding line T2 can be facilitated.
In the embodiment, in order to ensure that the head trolley 9 cannot deviate when walking on the detection trolley 7, the detection trolley 7 is provided with a moving guide rail for the head trolley 9 to move back and forth along the central axis of the detection trolley 7, and the moving guide rail consists of two monorails parallel to the central axis of the detection trolley 7. As can be seen from fig. 4, the seal head trolley 9 is provided with rollers capable of walking, the seal head trolley 9 is provided with a rotatable turntable 91, three support columns 92 for supporting the seal head T are fixedly arranged on the turntable 91, and the three support columns 92 are distributed in an isosceles triangle. In practical application, the end socket T can be lifted onto the end socket trolley 9 by adopting a lifting mechanism, and then conveyed to the end socket clamping lifting device 8 by the end socket trolley 9. After the end enclosure T is hoisted on the support column 92, the port plane of the end enclosure T is guaranteed to be in a horizontal state, and then the starting point of the center welding line T2 of the end enclosure T can be opposite to the central axis of the detection trolley 7 by rotating the turntable 91.
In the embodiment, the seal head clamping lifting device 8 of the utility model is composed of two seal head clamping lifters 81 which can independently control lifting. One of the two head holding lifters 81 is provided on the left side of the inspection carriage 7, and the other of the two head holding lifters 81 is provided on the right side of the inspection carriage 7. The clamping area is located between the left head clamping lifter 81 and the right head clamping lifter 81.
In the embodiment, as shown in fig. 3, the head clamping lifter 81 of the present utility model comprises a vertically arranged lifting frame 811, a lifting screw 812 is rotatably installed in the lifting frame 811, and a clamping bracket 813 capable of moving up and down along the lifting frame 811 is spirally driven on the lifting screw 812, and the clamping bracket 813 is matched with the bottom clamping supports of the steel plates at both sides of the head T. The clamping bracket 813 is further provided with a seal head positioning device (not shown in the figure) which can move downwards under the drive of the motor to be matched with the clamping bracket 813 to clamp and fix the seal head T. A clamping lifting motor 814 is installed on the top of the lifting frame 811, and the clamping lifting motor 814 is used for driving the lifting screw 812 to rotate so as to drive the clamping bracket 813 and the seal head positioning device on the clamping bracket 813 to move up and down synchronously. After the end socket T is placed on the holding bracket 813, the end socket T may be fixed by separately controlling the end socket positioning device. The clamping bracket 813 of the utility model can also be telescopically adjusted in the horizontal direction, and the distance between the clamping brackets 813 of the two sealing head clamping lifters 81 can be adjusted through telescopic operation, so that the device can clamp sealing heads T with different diameters.
As shown in fig. 1, the flaw detection room F of the present utility model is equipped with a lead door F1 and a lead door motor F2 for driving the lead door F1 to open or close. A detection guide rail for the detection trolley 7 to move back and forth is paved on the ground in the flaw detection room F.
The utility model also provides a detection method of the head welding seam by adopting the DR film shooting detection tool, which sequentially comprises the following steps:
Step one: the detection trolley 7 loads the sealing head T outside the flaw detection room F, when the detection trolley is loaded, a hoisting mechanism is used for hoisting the sealing head T on the sealing head trolley 9 in a workshop in an upward plane, then a turntable 91 of the sealing head trolley 9 is rotated, and the starting point of a welding line T2 in the center of the sealing head T is opposite to the central axis of the detection trolley 7 by using infrared rays; opening the seal head trolley 9 into a clamping area of the seal head clamping lifting device 8, starting the seal head clamping lifting device 8 to clamp the seal head T, and lifting the seal head T to a set detection height; opening the seal head trolley 9 from the clamping area after lifting the seal head T;
step two: after the detection trolley 7 is started along the paved track and is fed into the flaw detection room F to enter an initial detection position, a lead is attached to a welding seam, a quality gauge is put, and after a person exits, a lead door F1 is closed to prepare for detection;
Step three: the probe rod lifting device 1 is moved left and right, and the heights of the tube probe rod 2 and the imaging plate probe rod 3 are adjusted up and down by utilizing the probe rod lifting device 1, so that the X-ray tube device 4 and the imaging plate 6 are positioned at proper detection positions;
Step four: starting a detection program, wherein in the detection process, the detection trolley 7 moves forwards at a speed set by the program, the imaging plate 6 rotates and swings up and down, front and back along with the trend of the arc-shaped outer surface of the sealing head T in a program setting mode, and the X-ray tube device 4 rotates and swings up and down, front and back along with the trend of the arc-shaped inner surface of the sealing head T in a program setting mode until the detection of the central welding seam T2 of the sealing head T is completed;
Step five: after the detection of the center welding line T2 is finished, the probe rod lifting device 1 is removed, after the detection trolley 7 returns to the initial detection position, the left end socket clamping lifter 81 is controlled to descend, and the right end socket clamping lifter 81 ascends to rotate the end socket T, so that the plane of the left welding line T1 of the end socket T is perpendicular to the ground; then repeating the third step and the fourth step until the detection of the welding line T1 on the left side of the sealing head T is completed;
Step six: after the detection of the left welding line T1 is finished, the probe rod lifting device 1 is removed, the detection trolley 7 returns to the initial detection position, then the left end socket clamping lifter 81 ascends, and the right end socket clamping lifter 81 descends to rotate the end socket T, so that the plane of the right welding line T3 of the end socket T is perpendicular to the ground; then repeating the third step and the fourth step until the detection of the welding line T3 on the right side of the sealing head T is completed;
Step seven: after the detection work of all welding seams of the sealing head T is finished, a lead door F1 of a flaw detection room F is opened, a probe rod lifting device 1 is removed, the port plane of the sealing head T is rotated to be in a horizontal state by lifting of a sealing head clamping lifter 81 on the left side and the right side, then a detection trolley 7 is started, the sealing head is opened to the outside of the flaw detection room F, a sealing head trolley 9 is opened to the central position of a sealing head clamping lifting device 8, a sealing head clamping lifting device 8 is started again to place the sealing head T on the sealing head trolley 9, and after the sealing head trolley 9 is separated from a clamping area of the sealing head clamping lifting device 8, the sealing head T is dismounted by a lifting mechanism, so that the whole detection work is finished.
The preferred embodiments of this utility model have been described so far that various changes or modifications may be made by one of ordinary skill in the art without departing from the scope of this utility model.
Claims (7)
1. A DR film shooting detection tool for a seal head welding seam comprises a probe rod lifting device (1) arranged in a flaw detection room (F) and a detection trolley (7) for driving the seal head (T) to move forwards and backwards for detection; the probe rod lifting device (1) drives the ray tube probe rod (2) and the imaging plate probe rod (3) to lift up and down; the method is characterized in that: an X-ray tube device (4) is arranged at the front end of the X-ray tube probe rod (2), an imaging plate driving device (5) is arranged on the imaging plate probe rod (3), and the imaging plate driving device (5) comprises a driving machine box (51) fixedly arranged on the imaging plate probe rod (3) and an imaging plate supporting rod (52) which is driven by the driving machine box (51) to rotate up and down and move in a telescopic manner; an imaging plate (6) for detecting a welding line on the sealing head (T) by matching with the X-ray tube device (4) is arranged at the front end of the imaging plate supporting rod (52); the detection trolley (7) is provided with a sealing head clamping lifting device (8) at a position relatively close to the front end, and the sealing head clamping lifting device (8) is used for clamping the sealing head (T) and lifting the clamped sealing head (T) to a set detection height; the detection trolley (7) is provided with a seal head trolley (9) for conveying the seal head (T) to a clamping area of the seal head clamping lifting device (8).
2. The head welding seam of claim 1 adopts a DR film forming detection tool, which is characterized in that: the probe rod lifting device (1) comprises a device frame (11) capable of moving left and right along a guide channel (D) paved in a flaw detection room (F), and a traveling motor (12) arranged on the device frame (11) and used for driving the device frame (11) to travel; a lifting guide plate (13) and an upper sliding block (14) and a lower sliding block (15) which are arranged on the lifting guide plate (13) in a sliding manner are arranged in front of the device frame (11); the tail end of the ray tube probe rod (2) is fixedly arranged on the upper sliding block (14), and the tail end of the imaging plate probe rod (3) is fixedly arranged on the lower sliding block (15); the device frame (11) is provided with an upper slide block servo motor (16) for driving the upper slide block (14) to lift up and down and a lower slide block servo motor (17) for driving the lower slide block (15) to lift up and down.
3. The end socket welding seam of claim 2 adopts a DR film shooting detection tool, which is characterized in that: the seal head (T) is formed by splicing four arc-shaped steel plates, and the four steel plates are spliced to form three arc-shaped welding seams; the three welding seams sequentially comprise a left welding seam (T1), a center welding seam (T2) and a right welding seam (T3) from left to right.
4. A head weld according to claim 3 employing DR film detection tooling, characterized by: the detection trolley (7) is provided with a movable guide rail for the head trolley (9) to move back and forth along the central axis of the detection trolley (7); the rotary table (91) which enables the starting point of the central welding line (T2) of the sealing head (T) to be opposite to the central axis of the detection trolley (7) through rotation is arranged on the sealing head trolley (9), three support columns (92) for supporting the sealing head (T) are fixedly arranged on the rotary table (91), and the three support columns (92) are distributed in an isosceles triangle shape.
5. The end socket welding seam of claim 4 adopts a DR film shooting detection fixture, which is characterized in that: the seal head clamping lifting device (8) consists of two seal head clamping lifters (81) which can independently control lifting; one of the two seal head clamping lifters (81) is arranged on the left side of the detection trolley (7), and the other one of the two seal head clamping lifters (81) is arranged on the right side of the detection trolley (7); the clamping area is positioned between the left side sealing head clamping lifter (81) and the right side sealing head clamping lifter (81).
6. The end socket welding seam of claim 5 adopts a DR film shooting detection tool, which is characterized in that: the head clamping lifter (81) comprises a lifting frame (811) which is longitudinally arranged, a lifting screw (812) is rotatably arranged in the lifting frame (811), a clamping bracket (813) which can move up and down along the lifting frame (811) is spirally driven on the lifting screw (812), the clamping bracket (813) is matched with the bottom clamping supports of steel plates on two sides of the head (T), and a clamping lifting motor (814) which is used for driving the lifting screw (812) to rotate and drive the clamping bracket (813) to lift is arranged at the top of the lifting frame (811).
7. The end socket welding seam of claim 6 adopts a DR film shooting detection tool, which is characterized in that: the flaw detection room (F) is provided with a lead door (F1) and a lead door motor (F2) for driving the lead door (F1) to open or close; and a detection guide rail for the detection trolley (7) to move back and forth is paved on the ground in the flaw detection room (F).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322855843.7U CN221007371U (en) | 2023-10-24 | 2023-10-24 | DR film shooting detection tool for seal head welding seam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322855843.7U CN221007371U (en) | 2023-10-24 | 2023-10-24 | DR film shooting detection tool for seal head welding seam |
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| Publication Number | Publication Date |
|---|---|
| CN221007371U true CN221007371U (en) | 2024-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322855843.7U Active CN221007371U (en) | 2023-10-24 | 2023-10-24 | DR film shooting detection tool for seal head welding seam |
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| Country | Link |
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| CN (1) | CN221007371U (en) |
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2023
- 2023-10-24 CN CN202322855843.7U patent/CN221007371U/en active Active
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