CN115156833A - Clamp for welding steel pipes - Google Patents
Clamp for welding steel pipes Download PDFInfo
- Publication number
- CN115156833A CN115156833A CN202210811451.8A CN202210811451A CN115156833A CN 115156833 A CN115156833 A CN 115156833A CN 202210811451 A CN202210811451 A CN 202210811451A CN 115156833 A CN115156833 A CN 115156833A
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- Prior art keywords
- clamping arm
- rotating
- steel pipes
- motor
- welding
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 55
- 239000010959 steel Substances 0.000 title claims abstract description 55
- 238000003466 welding Methods 0.000 title claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims description 9
- 230000000875 corresponding effect Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005498 polishing Methods 0.000 abstract description 3
- 238000000227 grinding Methods 0.000 abstract description 2
- 230000001360 synchronised effect Effects 0.000 abstract description 2
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
- B23K37/0538—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor for rotating tubes, e.g. rollers
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a clamp for welding steel pipes, wherein an arc-shaped supporting plate fixed at the tail end of a telescopic plate is driven by a first motor to move along the radial direction of the telescopic plate to be pumped in and out, so that the arc-shaped supporting plate is supported on the inner wall of the steel pipe, the steel pipe is effectively fixed, the surface of the steel pipe cannot be damaged, the steel pipe cannot be shielded, and the welding, grinding, polishing and other work are facilitated; furthermore, the second motor provides power to drive the first clamping arm to approach or separate from the first nut and the second clamping arm from the second nut, when the first clamping arm and the second clamping arm approach each other, the two steel pipes can approach each other until the two ends of the two steel pipes abut against each other, so that the abutting positions can be welded conveniently, and the use is simple and convenient; still further, provide power through the third motor, drive two sets of arc faggings and follow rotation axis synchronous revolution for two steel pipes can keep same rotational speed, prevent the welding seam dislocation, further improve the welding effect.
Description
Technical Field
The invention relates to a clamp for welding steel pipes, and belongs to the technical field of steel pipe welding.
Background
In the fields of industrial production, house construction and the like, steel pipes are often required to be welded; in the prior art, when two steel pipes are welded, the two steel pipes are generally clamped by two clamping mechanisms respectively, and are horizontally aligned, and then the joints are welded;
although the welding mechanism can also effectively perform welding, in practical application, we find that the welding mechanism still has certain disadvantages, such as:
1. the traditional clamping devices clamp the steel pipe from outside to inside, so that the surface of the steel pipe is easy to damage, and the steel pipe is shielded to prevent the steel pipe from being polished and polished;
2. because the pipe diameter of some steel pipes is too large, the joint can be fully welded in order to facilitate the welding operation, and the pipe can be generally overturned in the welding process, but the traditional clamping device is difficult to ensure that the rotating speeds of the two steel pipes are consistent, and if the rotating speeds are inconsistent, the welding seam can be dislocated, so that the welding quality is reduced;
based on this, it is necessary to provide a jig for welding between steel pipes.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a clamp for welding steel pipes, which is used for clamping the steel pipes from inside to outside; further, the two steel pipes can be rotated in synchronization.
The technical scheme of the invention is as follows: a clamp for welding steel pipes comprises a driving cabinet, wherein a first clamping arm and a second clamping arm are movably arranged on the left side and the right side of the top of the driving cabinet respectively, rotating blocks are arranged on the opposite sides of the first clamping arm and the second clamping arm respectively, and positioning discs are fixedly connected to the opposite sides of the two rotating blocks through connecting rings;
a plurality of drawing grooves are uniformly formed in the edge of the positioning disc, side grooves are formed in the inner walls of the drawing grooves, telescopic plates are movably arranged in the side grooves, and arc-shaped supporting plates are fixedly mounted at the tail ends of the telescopic plates;
the automatic drawing device is characterized in that a first motor is arranged inside the rotating block, a positioning mechanism is arranged between the first motor and the plurality of expansion plates, and when an output shaft of the first motor rotates, the plurality of expansion plates can be synchronously drawn into the plurality of side grooves.
The positioning mechanism comprises rotating discs, arc-shaped guide grooves, sliding rods and rotating shafts, wherein the rotating discs are rotatably arranged on one opposite sides of the two positioning discs, a plurality of arc-shaped guide grooves are uniformly formed in the rotating discs, the sliding rods are slidably arranged in the arc-shaped guide grooves, and the sliding rods are fixedly arranged on the telescopic plates in a one-to-one correspondence manner;
and a rotating shaft is fixedly installed at the center of the rotating disc, and one end of the rotating shaft penetrates through the positioning disc and the connecting ring and is connected with an output shaft of the first motor.
The inside of drive cabinet is rotated and is provided with the threaded rod, revolve to opposite first screw thread and second screw thread respectively to the left and right sides of threaded rod outer wall, the outer wall of first screw thread and second screw thread threaded connection respectively has first nut and second nut, first arm lock and second arm lock fixed mounting respectively are at the top of first nut and second nut, the top of drive cabinet still seted up with the corresponding movable slot of first arm lock and second arm lock.
The one end of threaded rod rotates and sets up on the inner wall of drive cabinet, the other end of threaded rod extends to the outside of drive cabinet and the output shaft of fixedly connected with second motor, second motor fixed mounting is on the drive cabinet.
The inner parts of the first clamping arm and the second clamping arm are both rotatably provided with rotating gears, the centers of the rotating gears are fixedly provided with rotating shafts, one ends of the rotating shafts are rotatably arranged on the inner walls of the first clamping arm and the second clamping arm, and the other ends of the rotating shafts extend to the outer parts of the first clamping arm and the second clamping arm and are fixedly connected with corresponding rotating blocks;
the rotary gear is externally meshed with a driving wheel, the driving wheel is externally meshed with a driving wheel, and the driving wheel is rotatably arranged inside the first clamping arm and the second clamping arm through a rotary bearing.
The center department of drive wheel has seted up the slot, the slot internalization is inserted and is equipped with the inserted bar, the one end of inserted bar is rotated and is set up on the inner wall of drive cabinet, the other end of inserted bar extends to the outside of drive cabinet and the output shaft of fixedly connected with third motor, third motor fixed mounting is on the drive cabinet.
The outer wall of the inserted bar is evenly provided with splines, and the inner wall of the slot is evenly provided with a spline groove coupled with the splines.
The center department at drive cabinet top still is provided with two sets of cylinders, and the output shaft top of two sets of cylinders all fixed mounting has the support rod.
The invention has the beneficial effects that: according to the invention, the arc-shaped supporting plate fixed at the tail end of the expansion plate is driven by the first motor to move along the expansion plate in the radial direction to be pumped in and out, so that the arc-shaped supporting plate is supported on the inner wall of the steel pipe, the steel pipe is effectively fixed, the surface of the steel pipe cannot be damaged, and meanwhile, the steel pipe cannot be shielded, and the welding, grinding, polishing and other work are facilitated; furthermore, the second motor provides power to drive the first clamping arm to approach or separate from the first nut and the second clamping arm from the second nut, when the first clamping arm and the second clamping arm approach each other, the two steel pipes can approach each other until the two ends of the two steel pipes abut against each other, so that the abutting positions can be welded conveniently, and the use is simple and convenient; still further, provide power through the third motor, drive two sets of arc faggings and follow rotation axis synchronous revolution for two steel pipes can keep same rotational speed, prevent the welding seam dislocation, further improve the welding effect.
Drawings
FIG. 1 is a perspective view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the overall structure of the present invention;
FIG. 3 is a cross-sectional view of a first clamp arm portion of the present invention;
FIG. 4 is an enlarged schematic view of a turning block portion of the present invention;
FIG. 5 is an enlarged schematic view of a positioning disk portion of the present invention;
FIG. 6 is a side view of a puck portion of the present invention;
FIG. 7 is an exploded view of the drive wheel portion of the present invention;
the reference numbers in the figures are: 1. a drive cabinet; 2. a first clamp arm; 3. a second clamp arm; 4. rotating the block; 5. a connecting ring; 6. positioning a plate; 7. drawing the groove; 8. a side groove; 9. a retractable plate; 10. an arc-shaped supporting plate; 11. rotating the disc; 12. an arc-shaped guide groove; 13. a slide bar; 14. a rotating shaft; 15. a first motor; 16. a threaded rod; 17. a second motor; 18. a first nut; 19. a second nut; 20. a movable groove; 21. a rotating gear; 22. a rotating shaft; 23. a driving wheel; 24. a drive wheel; 25. a rotating bearing; 26. a slot; 27. a flower trough; 28. inserting a rod; 29. a spline; 30. a third motor; 31. a cylinder; 32. a support rod.
Detailed Description
The invention will be further described with reference to the following figures and examples, without however restricting the scope of the invention thereto.
Example 1: as shown in fig. 1-7, a clamp for welding steel pipes comprises a driving cabinet 1, wherein a first clamping arm 2 and a second clamping arm 3 are respectively movably arranged at the left side and the right side of the top of the driving cabinet 1, rotating blocks 4 are respectively arranged at the opposite sides of the first clamping arm 2 and the second clamping arm 3, and positioning discs 6 are fixedly connected to the opposite sides of the two rotating blocks 4 through connecting rings 5; the edge of positioning disk 6 has evenly seted up a plurality of and has taken out groove 7, side slot 8 has all been seted up to the inner wall that a plurality of was taken out groove 7, the equal activity in a plurality of side slot 8 is provided with expansion plate 9, the equal fixed mounting in end of a plurality of expansion plate 9 has arc fagging 10, the inside of turning block 4 is provided with first motor 15, be provided with positioning mechanism between first motor 15 and a plurality of expansion plate 9, when the output shaft of first motor 15 is rotatory, can make a plurality of expansion plate 9 suction take out in a plurality of side slot 8 in step.
Optionally, as shown in fig. 4, 5, and 6, the positioning mechanism includes a rotating disc 11, arc-shaped guide grooves 12, sliding rods 13, and a rotating shaft 14, the rotating disc 11 is rotatably disposed on one side of each of the two positioning discs 6, a plurality of arc-shaped guide grooves 12 are uniformly disposed on the rotating disc 11, the sliding rods 13 are slidably disposed in the plurality of arc-shaped guide grooves 12, and the plurality of sliding rods 13 are respectively and fixedly mounted on the plurality of expansion plates 9 in a one-to-one correspondence manner; a rotating shaft 14 is fixedly installed at the center of the rotating disc 11, and one end of the rotating shaft 14 penetrates through the positioning disc 6 and the connecting ring 5 and is connected with an output shaft of a first motor 15.
Two steel pipes are just fixed to two sets of arc fagging 10, and after two steel pipes were fixed, the first arm lock 2 of control and second arm lock 3 were close to each other, just can make two steel pipes offset, are convenient for weld the seam department.
Optionally, the inside of drive cabinet 1 is rotated and is provided with threaded rod 16, the first screw thread and the second screw thread that revolve to opposite are seted up respectively to the left and right sides of threaded rod 16 outer wall, the outer wall of first screw thread and second screw thread threaded connection respectively has first nut 18 and second nut 19, first arm lock 2 and second arm lock 3 are fixed mounting respectively at the top of first nut 18 and second nut 19, drive cabinet 1's top still seted up with first arm lock 2 and the corresponding activity groove 20 of second arm lock 3.
Optionally, one end of the threaded rod 16 is rotatably disposed on the inner wall of the driving cabinet 1, the other end of the threaded rod 16 extends to the outside of the driving cabinet 1 and is fixedly connected with an output shaft of a second motor 17, and the second motor 17 is fixedly mounted on the driving cabinet 1.
Optionally, a rotating gear 21, a driving wheel 23 and a driving wheel 24 are rotatably disposed inside each of the first clamping arm 2 and the second clamping arm 3, a rotating shaft 22 is fixedly mounted at the center of the rotating gear 21, one end of each of the two rotating shafts 22 is rotatably disposed on the inner walls of the first clamping arm 2 and the second clamping arm 3, and the other end of each of the two rotating shafts 22 extends to the outside of the first clamping arm 2 and the second clamping arm 3 and is fixedly connected with the corresponding rotating block 4; the rotating gear 21 is externally engaged with a driving wheel 23, the driving wheel 23 is externally engaged with a driving wheel 24, the driving wheel 24 is rotatably arranged inside the first clamping arm 2 and the second clamping arm 3 through a rotating bearing 25, as shown in the figure, the rotating bearing 25 is respectively fixed at the left and the right of each driving wheel 24, and the inserted rod 28 passes through the rotating bearing 25. The driving wheel 24 rotates to drive the transmission wheel 23 to rotate, and the transmission wheel 23 rotates to drive the rotary gear 21 to rotate; the rotating gear 21 rotates to drive the rotating block 4 and the arc-shaped supporting plate 10 to rotate through the rotating shaft 22, and further drives the steel pipes clamped by the rotating block to rotate.
Optionally, a slot 26 is formed in the center of the driving wheel 24, an insertion rod 28 is movably inserted in the slot 26, one end of the insertion rod 28 is rotatably disposed on the inner wall of the driving cabinet 1, the other end of the insertion rod 28 extends to the outside of the driving cabinet 1 and is fixedly connected with an output shaft of a third motor 30, and the third motor 30 is fixedly mounted on the driving cabinet 1.
Optionally, splines 29 are uniformly arranged on the outer wall of the insert rod 28, and flower grooves 27 coupled with the splines 29 are uniformly arranged on the inner wall of the insert groove 26. Due to the fact that the insertion rod 28 is matched with the insertion groove 26 through the spline groove 27 and the spline 29, the driving wheel 24 can move left and right on the insertion rod 28 and can also be driven to rotate by the insertion rod 28 all the time.
Optionally, two groups of cylinders 31 are further disposed at the center of the top of the driving cabinet 1, and support rods 32 are fixedly mounted at the tops of output shafts of the two groups of cylinders 31; the output shaft of two sets of cylinders 31 stretches out and makes two supporting rods 32 rise, and two supporting rods 32 rise, just can carry out the bearing to the junction of two steel pipes.
The working principle and the using process of the invention are as follows:
the first motor 15 operates to drive the rotating shaft 14 at the top of the output shaft of the first motor to rotate, the rotating shaft 14 rotates to drive the rotating disc 11 to rotate, when the rotating disc 11 rotates, the sliding rod 13 can be guided to move through the arc-shaped guide groove 12 formed in the rotating disc 11, the telescopic plate 9 extends out of or retracts into the side groove 8 through the sliding rod 13, the telescopic plate 9 extends out of or retracts into the side groove 8 to adjust the positions of the plurality of arc-shaped supporting plates 10, so that the arc-shaped supporting plates 10 are supported on the inner wall of the steel pipe, the steel pipe is effectively fixed, the surface of the steel pipe is not damaged, meanwhile, the steel pipe is not shielded, and the welding, polishing and other works are facilitated;
after two steel pipes are respectively fixed by two groups of arc supporting plates 10, a second motor 17 is controlled to operate to enable a threaded rod 16 at the top of an output shaft of the second motor to rotate, the threaded rod 16 rotates to drive a first nut 18 and a second nut 19 to move in opposite directions through a first thread and a second thread which are opposite in turning direction, the threaded rod is close to or away from each other, the first nut 18 and the second nut 19 can be close to or away from each other to drive a first clamping arm 2 and a second clamping arm 3 to be close to or away from each other, when the first clamping arm 2 and the second clamping arm 3 are close to each other, the two steel pipes can be close to each other until two ends of the two steel pipes are abutted, the abutted parts can be conveniently welded, and the use is simple and convenient;
the third motor 30 operates to drive the inserted bar 28 at the top of the output shaft to rotate, the inserted bar 28 rotates to drive the driving wheel 24 to rotate, the driving wheel 24 rotates to drive the rotating gear 21 to rotate through the driving wheel 23, and the rotating gear 21 rotates to drive the two sets of arc supporting plates 10 to rotate synchronously through the rotating shaft 22, so that the two steel pipes can keep the same rotating speed, the welding seam dislocation is prevented, and the welding effect is further improved.
It should be noted that the terms "first," "second," and the like in the present disclosure are used for distinguishing between similar elements and not necessarily for indicating or implying relative importance.
While the present invention has been described in detail with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (8)
1. The utility model provides a be used for welded anchor clamps between steel pipe, includes drive cabinet (1), its characterized in that: a first clamping arm (2) and a second clamping arm (3) are movably arranged on the left side and the right side of the top of the driving cabinet (1) respectively, rotating blocks (4) are arranged on the opposite sides of the first clamping arm (2) and the second clamping arm (3), and positioning discs (6) are fixedly connected to the opposite sides of the two rotating blocks (4) through connecting rings (5);
a plurality of drawing grooves (7) are uniformly formed in the edge of the positioning disc (6), side grooves (8) are formed in the inner walls of the drawing grooves (7), telescopic plates (9) are movably arranged in the side grooves (8), and arc-shaped supporting plates (10) are fixedly mounted at the tail ends of the telescopic plates (9);
the inside of turning block (4) is provided with first motor (15), be provided with positioning mechanism between first motor (15) and a plurality of expansion plate (9), when the output shaft of first motor (15) was rotatory, can make a plurality of expansion plate (9) suction take out in a plurality of side groove (8) in step.
2. The clamp for welding between steel pipes according to claim 1, characterized in that: the positioning mechanism comprises rotating discs (11), arc-shaped guide grooves (12), sliding rods (13) and rotating shafts (14), wherein the rotating discs (11) are rotatably arranged on opposite sides of the two positioning discs (6), a plurality of arc-shaped guide grooves (12) are uniformly formed in the rotating discs (11), the sliding rods (13) are slidably arranged in the arc-shaped guide grooves (12), and the sliding rods (13) are fixedly arranged on the expansion plates (9) in a one-to-one correspondence manner;
a rotating shaft (14) is fixedly installed at the center of the rotating disc (11), and one end of the rotating shaft (14) penetrates through the positioning disc (6) and the connecting ring (5) and is connected with an output shaft of the first motor (15).
3. The clamp for welding between steel pipes according to claim 1, characterized in that: the inside of drive cabinet (1) is rotated and is provided with threaded rod (16), the first screw thread and the second screw thread that revolve to opposite are seted up respectively to the left and right sides of threaded rod (16) outer wall, the outer wall of first screw thread and second screw thread is threaded connection respectively has first nut (18) and second nut (19), first arm lock (2) and second arm lock (3) are fixed mounting respectively at the top of first nut (18) and second nut (19), the top of drive cabinet (1) still seted up with first arm lock (2) and second arm lock (3) corresponding activity groove (20).
4. The jig for welding between steel pipes according to claim 3, characterized in that: the one end of threaded rod (16) is rotated and is set up on the inner wall of drive cabinet (1), the other end of threaded rod (16) extends to the outside of drive cabinet (1) and the output shaft of fixedly connected with second motor (17), second motor (17) fixed mounting is on drive cabinet (1).
5. The clamp for welding between steel pipes according to claim 1, characterized in that: the inner parts of the first clamping arm (2) and the second clamping arm (3) are respectively and rotatably provided with a rotating gear (21), the center of the rotating gear (21) is fixedly provided with a rotating shaft (22), one end of the rotating shaft (22) is rotatably arranged on the inner walls of the first clamping arm (2) and the second clamping arm (3), and the other end of the rotating shaft (22) extends to the outer parts of the first clamping arm (2) and the second clamping arm (3) and is fixedly connected with a corresponding rotating block (4);
the rotary gear (21) is externally meshed with a transmission wheel (23), the transmission wheel (23) is externally meshed with a driving wheel (24), and the driving wheel (24) is rotatably arranged inside the first clamping arm (2) and the second clamping arm (3) through a rotary bearing (25).
6. The jig for welding between steel pipes according to claim 5, characterized in that: slot (26) have been seted up in the center department of drive wheel (24), slot (26) internalization is inserted and is equipped with inserted bar (28), the one end of inserted bar (28) is rotated and is set up on the inner wall of drive cabinet (1), the other end of inserted bar (28) extends to the outside of drive cabinet (1) and the output shaft of fixedly connected with third motor (30), third motor (30) fixed mounting is on drive cabinet (1).
7. The jig for welding between steel pipes according to claim 6, characterized in that: the outer wall of inserted bar (28) evenly is provided with spline (29), the inner wall of slot (26) evenly seted up with spline (29) coupled flower groove (27).
8. The clamp for welding between steel pipes according to claim 1, characterized in that: the center of the top of the driving cabinet (1) is also provided with two groups of cylinders (31), and the tops of output shafts of the two groups of cylinders (31) are fixedly provided with bearing rods (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210811451.8A CN115156833A (en) | 2022-07-11 | 2022-07-11 | Clamp for welding steel pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210811451.8A CN115156833A (en) | 2022-07-11 | 2022-07-11 | Clamp for welding steel pipes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115156833A true CN115156833A (en) | 2022-10-11 |
Family
ID=83492501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210811451.8A Pending CN115156833A (en) | 2022-07-11 | 2022-07-11 | Clamp for welding steel pipes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115156833A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115533437A (en) * | 2022-11-24 | 2022-12-30 | 河北恒跃机械科技有限公司 | Circumferential weld welding set for pipe fitting |
| CN116713689A (en) * | 2023-08-08 | 2023-09-08 | 江苏顺驰管业有限公司 | Butt welding device for safe processing of welded pipe |
| CN116952731A (en) * | 2023-06-25 | 2023-10-27 | 江苏爱艺威精密科技有限公司 | Metal material detection device |
| CN117921279A (en) * | 2024-03-13 | 2024-04-26 | 铜陵速博机械设备科技有限公司 | Seamless steel tube welding machine for machining mechanical equipment |
| CN118023020A (en) * | 2024-04-10 | 2024-05-14 | 泰州畅祺机械制造有限公司 | Steel pipe flush coater |
-
2022
- 2022-07-11 CN CN202210811451.8A patent/CN115156833A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115533437A (en) * | 2022-11-24 | 2022-12-30 | 河北恒跃机械科技有限公司 | Circumferential weld welding set for pipe fitting |
| CN115533437B (en) * | 2022-11-24 | 2023-03-07 | 河北恒跃机械科技有限公司 | Circular seam welding device for pipe fitting |
| CN116952731A (en) * | 2023-06-25 | 2023-10-27 | 江苏爱艺威精密科技有限公司 | Metal material detection device |
| CN116713689A (en) * | 2023-08-08 | 2023-09-08 | 江苏顺驰管业有限公司 | Butt welding device for safe processing of welded pipe |
| CN117921279A (en) * | 2024-03-13 | 2024-04-26 | 铜陵速博机械设备科技有限公司 | Seamless steel tube welding machine for machining mechanical equipment |
| CN118023020A (en) * | 2024-04-10 | 2024-05-14 | 泰州畅祺机械制造有限公司 | Steel pipe flush coater |
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