CN221474005U - Large-scale steel pipe welding equipment - Google Patents
Large-scale steel pipe welding equipment Download PDFInfo
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- CN221474005U CN221474005U CN202323211821.3U CN202323211821U CN221474005U CN 221474005 U CN221474005 U CN 221474005U CN 202323211821 U CN202323211821 U CN 202323211821U CN 221474005 U CN221474005 U CN 221474005U
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- 238000003466 welding Methods 0.000 title claims abstract description 196
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 37
- 239000010959 steel Substances 0.000 title claims abstract description 37
- 230000007246 mechanism Effects 0.000 claims abstract description 56
- 238000007599 discharging Methods 0.000 claims abstract description 35
- 230000009471 action Effects 0.000 claims abstract description 10
- 238000003825 pressing Methods 0.000 claims description 25
- 238000001514 detection method Methods 0.000 claims description 10
- 238000004804 winding Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 description 10
- 230000006872 improvement Effects 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 241000446313 Lamella Species 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The utility model discloses large steel pipe welding equipment, which comprises a welding mechanism, a supporting mechanism and a feeding mechanism, wherein the welding mechanism is used for welding a steel pipe; the welding mechanism comprises a welding gun for welding and a driving module for driving the welding gun to move; the support mechanism comprises a support frame, a rotating roller set rotatably arranged on the support frame and an output unit for driving the rotating roller set to rotate, wherein a support space for placing a workpiece to be welded is formed on the rotating roller set, and the workpiece to be welded is placed in the support space and rotates along with the rotating roller set; the feeding mechanism comprises a lifting assembly for lifting the welding rod and a discharging assembly for conveying the welding rod, wherein the lifting assembly is provided with a discharging channel for the welding rod to pass through, the action end of the lifting assembly is used for lifting the welding rod to be aligned to the discharging channel and guiding the welding rod to the discharging assembly, and the discharging assembly acts to output the welding rod to a welding area.
Description
Technical Field
The utility model relates to the technical field of automation equipment, in particular to large steel pipe welding equipment.
Background
In the welding process of large-scale steel pipes, the end part of the large-scale steel pipe is required to be welded with a head flap, and the welding width is about 10 millimeters because the thickness of a welded workpiece is larger than 20 millimeters, and the workpiece notch is fluctuated and the welding width is inconsistent, so that the steel pipe is required to be placed on a tool for welding, the welding rod for welding is large in size, and manual welding cannot be performed.
However, in the prior art, after manual spot welding positioning, the steel pipe and the head valve are generally placed on the positioning tool, and then the welding equipment is used for welding, but the welding position is required to be adjusted manually, and the feeding of the welding rod is required to be performed manually, so that the efficiency is low, and the labor intensity of staff is increased.
Disclosure of utility model
In order to solve the technical problems in the background technology, the utility model provides large steel pipe welding equipment.
The utility model solves the technical problems by adopting the following technical scheme:
a large steel pipe welding device comprises a welding mechanism, a supporting mechanism and a feeding mechanism;
The welding mechanism comprises a welding gun for welding and a driving module for driving the welding gun to move;
The support mechanism comprises a support frame, a rotating roller set rotatably arranged on the support frame and an output unit for driving the rotating roller set to rotate, wherein a support space for placing a workpiece to be welded is formed on the rotating roller set, and the workpiece to be welded is placed in the support space and rotates along with the rotating roller set;
the feeding mechanism comprises a lifting assembly for lifting the welding rod and a discharging assembly for conveying the welding rod, wherein the lifting assembly is provided with a discharging channel for the welding rod to pass through, and the action end of the lifting assembly is used for lifting the welding rod to be aligned to the discharging channel and guiding the welding rod to the discharging assembly, and the discharging assembly acts and outputs the welding rod to a welding area.
Preferably, a detection camera is arranged above the welding gun. Through above improvement, utilize detection camera to detect the welding position of steel pipe and lamella to confirm the welding seam position through inside 3D vision subassembly, promoted the welding quality by a wide margin.
Preferably, a distance sensor for detecting the distance between the welding gun and the steel pipe is arranged on the welding gun. Through the improvement, the distance sensor can calibrate and detect the height of the welding seam in the welding process, and the welding quality is greatly improved.
Preferably, the workpiece to be welded comprises a pipe body and a plurality of valve bodies arranged at the end part of the pipe body, the valve bodies are arranged on the pipe body at intervals, and a detection sensor for detecting gaps among the valve bodies is arranged at the side part of the welding gun. Through the improvement, the detecting sensor detects the gap between the valve bodies and then sends a signal, so that the welding gun stops welding, blank welding is avoided, and the welding quality is greatly improved.
Preferably, the rotating roller set comprises a first rotating roller and a second rotating roller which are rotatably arranged on a supporting frame, a plurality of mounting grooves for the second rotating roller to be placed in are formed in the supporting frame, the first rotating roller is connected with the output unit, and the supporting space is formed between the first rotating roller and the second rotating roller. Through the improvement, the output unit drives the first rotating roller to rotate, the steel pipe is placed in a supporting space between the first rotating roller and the second rotating roller, the first rotating roller drives the steel pipe to rotate, and the second rotating roller rotates along with the steel pipe, so that the steel pipe of the whole circle is welded, the stability of the steel pipe in the rotating process is guaranteed, the second rotating roller is placed in different mounting grooves, the distance between the second rotating roller and the first rotating roller is adjusted, and the welding of steel pipes of different sizes is met.
Preferably, the lateral part of the supporting mechanism is provided with a pressing mechanism, the pressing mechanism comprises a pressing frame and a pressing roller set rotatably arranged on the pressing frame, and the pressing roller set is abutted with the lateral part of the workpiece to be welded. Through above improvement, utilize the pinch roller group on the pinch roller frame to carry out the butt to the steel pipe from the lateral part to further improved the stability of steel pipe rotation in-process, with promotion welding quality.
Preferably, the lifting assembly comprises a storage frame for placing welding rods, a driving motor arranged on the storage frame, a winding wheel connected with the output end of the driving motor, and a lifting belt for lifting the welding rods, wherein one end of the lifting belt is fixed on the storage frame, the other end of the lifting belt is connected with the winding wheel, and the lifting belt is supported at the bottom of the welding rods so as to lift the heights of the welding rods. Through above improvement, driving motor drives the reel and rotates, makes the welding rod in the elevator belt pulling storage frame rise to in transferring the discharging component with the welding rod, realize the automatic feeding of welding rod.
Preferably, the discharging component comprises a mounting plate, a conveying roller rotatably arranged on the mounting plate and a driving unit for driving the conveying roller to rotate, and a feeding channel for welding rods to pass through is formed between the conveying rollers. Through above improvement, the drive unit drives the conveying roller to rotate, and the conveying roller rolls the welding rod into a feeding channel between the conveying rollers, so that automatic discharging of the welding rod is realized.
Preferably, the feeding mechanism further comprises a frame, a feeding plate is arranged on the frame in a rotating mode, the lifting assembly and the discharging assembly are arranged on the feeding plate, an inclined unit is arranged on the frame, one end of the feeding plate is hinged to the frame, the other end of the feeding plate is connected with the output end of the inclined unit, and the inclined unit acts and drives the feeding plate to tilt up, so that welding rods are placed in a welding area along the axial direction at a certain angle. Through the improvement, when the tilting unit drives the feeding plate to tilt, the welding rod at the top of the storage frame slides between the conveying rollers under the action of gravity, and the welding rod is placed into a welding area at a certain radial angle of the steel pipe under the action of the conveying rollers, so that the welding quality is improved.
Preferably, the lifting component and the discharging component are rotatably arranged on the feeding plate, and the feeding plate is provided with an adjusting groove for adjusting the radial angle of the welding rod, so that the welding rod is obliquely arranged in the welding area at a certain angle. Through above improvement, can adjust the angle of lifting subassembly and ejection of compact subassembly on the charge plate to change the horizontal angle when the welding rod is discharged, further improved welding quality.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
1. The automatic feeding of the welding rod is realized through the feeding mechanism, the welding rod is automatically conveyed to a welding area, the steel pipe is supported and rotated through the supporting mechanism, the welding mechanism is utilized for welding, the steel pipe is welded in a whole circle, the head valve is welded at the end part of the steel pipe, the whole welding rod feeding and welding process is completed through equipment, and compared with manual welding, the efficiency is greatly improved, and the welding quality is further improved;
2. The detection sensor for detecting the gap is arranged on the side part of the welding gun of the welding mechanism, and because the gap exists on the head valve, when the head valve is rotated to the gap position of the head valve, the detection sensor can not sense the head valve and then stop welding, so that the blank welding can not occur, and the welding quality is ensured;
Drawings
FIG. 1 is a schematic overall structure of the present utility model;
FIG. 2 is a schematic view of a welding mechanism according to the present utility model;
FIG. 3 is a schematic view of the structure of the support mechanism of the present utility model;
FIG. 4 is a schematic view of the compressing mechanism of the present utility model;
FIG. 5 is a schematic diagram of the whole structure of the feeding mechanism of the present utility model;
FIG. 6 is a schematic view of the discharge assembly of the present utility model;
FIG. 7 is a schematic view of a lift assembly of the present utility model;
FIG. 8 is an enlarged view of a portion of FIG. 2A in accordance with the present utility model;
In the figure: 1. a welding mechanism; 2. a support mechanism; 3. a feeding mechanism; 4. a steel pipe; 5. a valve body; 6. a tube body; 101. a welding gun; 102. a driving module; 103. detecting a camera; 104. a distance sensor; 105. a detection sensor; 201. a support frame; 202. a rotating roller group; 203. an output unit; 204. a supporting space; 205. a first rotating roller; 206. a second rotating roller; 207. a mounting groove; 208. a compressing mechanism; 209. a compacting frame; 210. a pinch roller set; 301. a lifting assembly; 302. a discharge assembly; 303. a storage frame; 304. a driving motor; 305. a winding wheel; 306. a lifting belt; 307. a mounting plate; 308. a conveying roller; 309. a feed channel; 310. a frame; 311. a feeding plate; 312. a tilting unit; 313. an adjustment tank; 314. a driving unit; 315. a discharge channel; 401. an up-down adjusting structure; 402. a lateral adjustment structure; 403. a screw; 404. a spring; 405. a welding rod sensor;
Detailed Description
The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It will be understood that, although the terms upper, middle, lower, top, end, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another for ease of understanding and are not used to define any directional or sequential limitation.
As shown in fig. 1 to 8, a large steel pipe welding device comprises a welding mechanism 1, a supporting mechanism 2 and a feeding mechanism 3;
specifically, the welding mechanism 1 includes a welding gun 101 for welding, and a driving module 102 for driving the welding gun 101 to move;
the supporting mechanism 2 comprises a supporting frame 201, a rotating roller set 202 rotatably arranged on the supporting frame 201, and an output unit 203 for driving the rotating roller set 202 to rotate, wherein a supporting space 204 for placing the workpiece 4 to be welded is formed on the rotating roller set 202, and the workpiece 4 to be welded is placed in the supporting space 204 and rotates along with the rotating roller set 202;
The feeding mechanism 3 comprises a lifting assembly 301 for lifting the welding rod and a discharging assembly 302 for conveying the welding rod, the lifting assembly 301 is provided with a discharging channel 315 for the welding rod to pass through, the action end of the lifting assembly 301 lifts the welding rod to be aligned to the discharging channel 315 and is guided into the discharging assembly 302, and the discharging assembly 302 acts and outputs the welding rod to a welding area.
In the whole welding process, firstly, a workpiece 4 to be welded with a head piece positioned is placed on a rotating roller group 202 of a supporting frame 201, then a welding rod is fed into a welding area of the workpiece 4 to be welded by a feeding mechanism 3, finally, a welding gun 101 of a welding mechanism 1 is placed into the welding area, along with welding, the workpiece 4 to be welded starts to rotate under the action of the rotating roller group 202, and the feeding mechanism 3 continuously feeds the welding rod into the welding area, so that the whole circle of the workpiece 4 to be welded is realized, the valve body 5 is completely welded on the workpiece 4 to be welded, and compared with the traditional manual welding, the welding machine has higher efficiency and just welding quality.
As shown in fig. 1, 2 and 8, further explanation is made about the implementation of the welding assembly in this embodiment, in which the driving module 102 employs a six-axis manipulator, and the welding gun 101 is disposed on the output end of the manipulator, so that multi-angle welding can be performed.
Further, a detection camera 103 is arranged above the welding gun 101, and can be used for detecting the welding position of the workpiece 4 to be welded and the flap body 5 during welding, taking a picture of the welding position and determining the welding position through an internal 3D visual assembly, so that the welding quality is greatly improved.
Specifically, be equipped with on the welder 101 and be used for detecting with waiting to weld the distance sensor 104 of work piece 4 distance, and welder 101 lateral part is equipped with and is used for detecting the detection sensor 105 in clearance, and work piece 4 that awaits measuring includes body 6 and lamella 5, can utilize distance sensor 104 can calibrate and detect the welding seam height in the welding process, and because there is the fretwork section between the lamella 5, in the welding process, detect sensor 105 enters into the fretwork section and just can't detect the signal, thereby stop welding, avoid appearing empty welding, improved the welding quality by a wide margin.
As shown in fig. 1 and 3, as a further explanation of the implementation of the supporting mechanism 2 in this embodiment, the rotating roller set 202 includes a first rotating roller 205 rotatably disposed on the supporting frame 201, and a second rotating roller 206 detachably disposed on the supporting frame 201, where the first rotating roller 205 is connected to the output unit 203, and the supporting space 204 is formed between the first rotating roller 205 and the second rotating roller 206, after the welding starts, the output unit 203 drives the first rotating roller 205 to rotate, and since the workpiece 4 to be welded is on the supporting space 204 between the first rotating roller 205 and the second rotating roller 206, the first rotating roller 205 drives the workpiece 4 to be welded to rotate, and the second rotating roller 206 rotates accordingly, so as to realize the welding of the workpiece 4 to be welded in a whole circle, and ensure the stability during the rotation.
Further, the supporting frame 201 is provided with a plurality of mounting grooves 207 for the second rotating roller 206 to be placed in, and the second rotating roller 206 can be placed in different mounting grooves 207, so that the distance between the second rotating roller 206 and the first rotating roller 205 can be adjusted, and the welding of workpieces 4 to be welded with different sizes can be satisfied.
Preferably, a plurality of supporting frames 201 are arranged at the bottom of the workpiece 4 to be welded along the axial direction, so that the workpieces 4 to be welded with different lengths are met, the first rotating rollers 205 on the supporting frames 201 are connected through connecting shafts, synchronous rotation can be performed, the first rotating rollers 205 on the supporting frames 201 are ensured to synchronously rotate, the stability of the workpiece 4 to be welded in the rotation process is further improved, and the welding quality is improved.
As shown in fig. 1 and 4, in some other embodiments, a pressing mechanism 208 may be disposed at a side portion of the supporting mechanism 2, where the pressing mechanism 208 includes a pressing frame 209 and a pressing roller set 210 rotatably disposed on the pressing frame 209, and the pressing roller set 210 on the pressing frame 209 is used to abut against the workpiece 4 to be welded from the side portion, so as to further improve stability in the rotation process of the workpiece 4 to be welded, so as to improve welding quality.
Of course, a plurality of mounting positions for placing the pressing roller set 210 are also arranged on the pressing frame 209 so as to adjust the spacing of the pressing roller set 210 to match with workpieces 4 to be welded with different sizes.
Preferably, the pressing mechanism 208 further comprises an up-down adjusting structure 401 and a lateral adjusting structure 402, the up-down position of the pressing roller set 210 can be adjusted by using the up-down adjusting structure 401, and the lateral position of the pressing roller set 210 can be adjusted by using the lateral adjusting structure 402, so that the side part of the workpiece 4 to be welded can be better attached.
Preferably, the pinch roller set 210 is parallel to the axis of the work piece 4 to be welded.
As shown in fig. 1, 5, 6 and 7, as a further explanation of the feeding mechanism 3 in this embodiment, the lifting assembly 301 includes a storage frame 303 for holding welding rods, a driving motor 304 disposed on the storage frame 303, a winding wheel 305 connected to an output end of the driving motor 304, and a lifting belt 306 for lifting the welding rods, one end of the lifting belt 306 is fixed on the storage frame 303, the other end of the lifting belt is connected to the winding wheel 305, and the driving motor 304 drives the winding wheel 305 to rotate, so that the lifting belt 306 pulls the welding rods in the storage frame 303 to rise, and transfers the welding rods into the discharging assembly 302, thereby realizing automatic feeding of the welding rods.
As further shown in the figure, the discharging assembly 302 includes a mounting plate 307, conveying rollers 308 rotatably disposed on the mounting plate 307, and a driving unit 314 for driving the conveying rollers 308 to rotate, wherein the mounting plate 307 is disposed up and down oppositely, so that a feeding channel 309 for passing welding rods is formed between the conveying rollers 308, and when the driving unit 314 drives the conveying rollers 308 to rotate, the conveying rollers 308 roll the welding rods into the feeding channel 309 between the conveying rollers 308, so as to realize automatic discharging of the welding rods.
The mounting plates 307 are connected through a screw 403, a spring 404 is sleeved on the screw 403, and the spring 404 acts on one mounting plate 307, so that the two mounting plates 307 have a trend of approaching together, the conveying roller 308 is abutted against the welding rod from top to bottom, and the conveying stability of welding rods is greatly improved.
Specifically, the feeding mechanism 3 further comprises a frame 310, the frame 310 is provided with a feeding plate 311 in a rotating manner, the lifting assembly 301 and the discharging assembly 302 are arranged on the feeding plate 311, an inclined unit 312 is arranged on the frame 310, one end of the feeding plate 311 is hinged to the frame 310, the other end of the feeding plate 311 is connected with the output end of the inclined unit 312, when the action end of the inclined unit 312 extends out, one end of the feeding plate 311 is tilted, welding rods in the storage frame 303 slide between the conveying rollers 308 under the action of gravity, and the welding rods are placed into a welding area in a radial certain angle of the workpiece 4 to be welded under the action of the conveying rollers 308, so that the welding quality is improved.
Preferably, the discharge end of the storage frame 303 is provided with a welding rod sensor 405, and when the welding rod sensor 405 cannot sense welding rods, lifting and feeding can be continued.
Preferably, the lifting assembly 301 and the discharging assembly 302 are rotatably arranged on the feeding plate 311, and the feeding plate 311 is provided with an adjusting groove 313 for adjusting the angle, so that the angle of the lifting assembly 301 and the discharging assembly 302 on the feeding plate 311 can be adjusted, the horizontal angle of the welding rod during discharging is changed, and the welding quality is further improved.
Preferably, the bottom of the feeding mechanism 3 is provided with a pulley, so that the feeding position can be more conveniently adjusted.
The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.
Claims (10)
1. The large steel pipe welding equipment is characterized by comprising a welding mechanism (1), a supporting mechanism (2) and a feeding mechanism (3);
A welding mechanism (1) comprising a welding gun (101) for welding and a driving module (102) for driving the welding gun (101) to move;
The supporting mechanism (2) comprises a supporting frame (201), a rotating roller set (202) rotatably arranged on the supporting frame (201) and an output unit (203) for driving the rotating roller set (202) to rotate, wherein a supporting space (204) for placing a workpiece (4) to be welded is formed on the rotating roller set (202), and the workpiece (4) to be welded is placed in the supporting space (204) and rotates along with the rotating roller set (202);
The feeding mechanism (3) comprises a lifting assembly (301) for lifting the welding rod and a discharging assembly (302) for conveying the welding rod, wherein the lifting assembly (301) is provided with a discharging channel (315) for feeding the welding rod, the action end of the lifting assembly (301) lifts the welding rod to be aligned to the discharging channel (315) and is guided into the discharging channel (315), and the discharging assembly (302) acts and outputs the welding rod to a welding area.
2. A large steel pipe welding apparatus according to claim 1, characterized in that a detection camera (103) is arranged above the welding gun (101).
3. A large steel pipe welding apparatus according to claim 1, characterized in that the welding gun (101) is provided with a distance sensor (104) for detecting the distance to the work piece (4) to be welded.
4. A large steel pipe welding apparatus according to claim 1, characterized in that the work piece (4) to be welded comprises a pipe body (6) and a plurality of petals (5) arranged at the end of the pipe body (6), the petals (5) are arranged on the pipe body (6) at intervals, and the side of the welding gun (101) is provided with a detection sensor (105) for detecting the gap between the petals (5).
5. The large steel pipe welding equipment according to claim 1, wherein the rotating roller set (202) comprises a first rotating roller (205) and a second rotating roller (206) rotatably arranged on a supporting frame (201), a plurality of mounting grooves (207) for placing the second rotating roller (206) are formed in the supporting frame (201), the first rotating roller (205) is connected with the output unit (203), and the supporting space (204) is formed between the first rotating roller (205) and the second rotating roller (206).
6. A large steel pipe welding apparatus according to claim 1, characterized in that the side of the supporting mechanism (2) is provided with a pressing mechanism (208), the pressing mechanism (208) comprises a pressing frame (209), and a pressing roller set (210) rotatably arranged on the pressing frame (209), and the pressing roller set (210) is abutted against the side of the workpiece (4) to be welded.
7. The large steel tube welding equipment according to claim 1, wherein the lifting assembly (301) comprises a storage frame (303) for placing welding rods, a driving motor (304) arranged on the storage frame (303), a winding wheel (305) connected with the output end of the driving motor (304), and a lifting belt (306) for lifting the welding rods, one end of the lifting belt (306) is fixed on the storage frame (303), the other end of the lifting belt is connected with the winding wheel (305), and the lifting belt (306) is supported at the bottom of the welding rods so as to lift the welding rods.
8. The large steel pipe welding equipment according to claim 1, wherein the discharging assembly (302) comprises a mounting plate (307), conveying rollers (308) rotatably arranged on the mounting plate (307), and a driving unit (314) for driving the conveying rollers (308) to rotate, and a feeding channel (309) for passing welding rods is formed between the conveying rollers (308).
9. The large steel pipe welding equipment according to claim 1, wherein the feeding mechanism (3) further comprises a frame (310), a feeding plate (311) is arranged on the frame (310) in a rotating mode, the lifting assembly (301) and the discharging assembly (302) are arranged on the feeding plate (311), an inclined unit (312) is arranged on the frame (310), one end of the feeding plate (311) is hinged to the frame (310), the other end of the feeding plate is connected with the output end of the inclined unit (312), and the inclined unit (312) acts and drives the feeding plate (311) to tilt up so that welding rods are placed into a welding area at a certain angle along the axial direction.
10. The large steel pipe welding apparatus as claimed in claim 9, wherein the lifting assembly (301) and the discharging assembly (302) are rotatably provided on a feeding plate (311), and the feeding plate (311) is formed with an adjusting groove (313) for adjusting a radial angle of the welding rod so that the welding rod is inclined at an angle to be placed in the welding area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323211821.3U CN221474005U (en) | 2023-11-27 | 2023-11-27 | Large-scale steel pipe welding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323211821.3U CN221474005U (en) | 2023-11-27 | 2023-11-27 | Large-scale steel pipe welding equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221474005U true CN221474005U (en) | 2024-08-06 |
Family
ID=92368247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323211821.3U Active CN221474005U (en) | 2023-11-27 | 2023-11-27 | Large-scale steel pipe welding equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221474005U (en) |
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2023
- 2023-11-27 CN CN202323211821.3U patent/CN221474005U/en active Active
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