CN216706441U - Automatic welding device for pipes - Google Patents
Automatic welding device for pipes Download PDFInfo
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- CN216706441U CN216706441U CN202220117282.3U CN202220117282U CN216706441U CN 216706441 U CN216706441 U CN 216706441U CN 202220117282 U CN202220117282 U CN 202220117282U CN 216706441 U CN216706441 U CN 216706441U
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Abstract
The utility model relates to an automatic pipe welding device, which belongs to the technical field of welding and comprises a workbench, a clamping assembly, a rotating assembly, a connecting assembly and a welding gun assembly; the middle part of the workbench is provided with a through hole with an opening at one side for placing the pipe, the top of the workbench is provided with a first through groove, and the first through groove is arranged around the through hole; the clamping assembly is connected to the workbench; the rotating assembly comprises a gear ring, a gear and a motor, the gear ring is arranged in the first through groove of the workbench, the gear is meshed with the outside of the gear ring, the gear is arranged at the top of the workbench, the motor is used for driving the gear to rotate, the motor is arranged on the workbench, and an output shaft of the motor is fixedly connected with the gear; the connecting component is fixedly connected with the gear ring; the welding gun assembly is connected with the connecting assembly. The automatic welding device for the pipes provided by the utility model realizes the welding of the pipes by the rotation of the welding gun assembly under the condition that the pipes are kept still, and has high welding precision and good welding effect.
Description
Technical Field
The utility model belongs to the technical field of welding, and particularly relates to an automatic welding device for pipes.
Background
The metal pipe is a common industrial product, can adapt to severe working environment, has the advantages of good heat resistance, difficult combustion, small property change along with temperature change, high mechanical strength, difficult aging and the like, and is widely applied to places for conveying high-pressure fluid and the like. In the production and processing process of the metal pipe, the metal pipe is easy to bend due to overlong length, and the quality of the metal pipe is influenced, so that the metal pipe is usually formed by splicing a plurality of pipe sections. In practical use, the pipe sections need to be welded to meet the requirements of different metal pipe lengths.
In the prior art, a welding gun is usually fixed in position and the pipe rotates to realize welding during welding of the pipe. Due to the smoothness of the outer side wall of the pipe, the clamping effect of the welding clamp on the pipe is weaker, the pipe is easy to shake when rotating, the welding quality is poor, and the expected welding effect can not be achieved frequently. In addition, the existing pipe welding clamp is troublesome to adjust, poor in adaptability and incapable of adapting to pipes with different calibers.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides the automatic welding device for the pipes, which can automatically weld the pipes in a mode that a welding gun rotates and the pipes are kept immovable so as to overcome the defects in the prior art.
The utility model provides an automatic welding device for pipes, which comprises:
the middle part of the workbench is provided with a through hole with one side opened for placing a pipe, the top of the workbench is provided with a first through groove, and the first through groove is arranged around the through hole;
the clamping assembly is used for clamping the pipe placed in the through hole and connected to the workbench;
a rotating assembly, comprising:
the gear ring is arranged in the first through groove of the workbench;
the gear is externally meshed with the gear ring and arranged at the top of the workbench;
the motor is used for driving the gear to rotate, the motor is arranged on the workbench, and an output shaft of the motor is fixedly connected with the gear;
the connecting assembly is fixedly connected with the gear ring;
the welding gun assembly is connected with the connecting assembly;
when the motor drives the gear to rotate, the gear ring can slide in the first through groove along the circumferential direction under the action of the gear; the gear ring drives the welding gun assembly to rotate around the through hole through the connecting assembly so as to complete welding work.
In the technical scheme, a rotating assembly is arranged, and a gear ring in the rotating assembly is utilized to drive a connecting assembly to rotate, so that the welding gun assembly rotates around a through hole of a workbench and a pipe in the through hole; the pipe is clamped by the arranged clamping assembly, so that the pipe is prevented from sliding in the welding process, and the welding quality is reduced; the gear ring is driven by the motor to rotate through the external engagement of the gear and the gear ring; according to the technical scheme, the pipe is welded by rotating the welding gun assembly under the condition that the pipe is kept immovable.
In some embodiments, the worktable comprises a base, a supporting member is connected to the top surface of the base, the supporting member is vertically arranged, and the upper end of the supporting member is connected to a table top; the table-board and the base are arranged in parallel, and the top of the table-board is provided with a first through groove.
In some of these embodiments, the clamping assembly comprises:
the two clamping blocks are symmetrically arranged on two sides of the opening through hole in the middle of the workbench, the lower ends of the clamping blocks are connected with the base in a sliding manner, and the upper ends of the clamping blocks are connected with the table top in a sliding manner;
the screw rod is used for driving the two clamping blocks to synchronously approach or separate from each other, the screw rod is arranged between the two clamping blocks, two ends of the screw rod are respectively connected with the corresponding clamping blocks through threads, and the thread turning directions of the two ends of the screw rod are opposite;
the rotary handle is fixedly connected with one end of the screw rod and arranged on one side, far away from the other clamping block, of one clamping block;
wherein, the rotation of the rotating handle can drive the screw rod to rotate so as to enable the two clamping blocks to approach or move away from each other.
According to the technical scheme, the clamping assembly is arranged inside the workbench, so that the whole structure is more compact, and the occupied space is reduced; the two clamping blocks are synchronously close to or far away from each other by arranging threads with opposite rotation at the two ends of the screw rod, so that the clamping force of the clamping blocks on the two sides of the pipe is the same; the handle is rotated to drive the screw rod to rotate, and the distance between the two clamping blocks is adjusted to clamp pipes with different diameters.
In some embodiments, the clamping block comprises a body, wherein the upper end and the lower end of the body are both provided with a protruding part, the protruding part at the upper end of the body is in sliding connection with a second through groove arranged at the bottom of the table top, and the protruding part at the lower end of the body is in sliding connection with a third through groove arranged at the top of the base; the longitudinal side of the body is provided with a connecting part for connecting the screw rod.
According to the technical scheme, the protruding part is arranged on the clamping block body and is in sliding connection with the through groove, so that the moving direction of the clamping block is ensured, and the phenomenon that the clamping effect of the pipe is weakened due to deviation of the moving direction of the clamping block is avoided; through set up connecting portion and be connected with the screw rod on pressing from both sides tight piece body, avoid the screw rod direct drive to press from both sides tight piece body motion and make and press from both sides tight piece body atress inequality and cause the motion unstability, increase the regulation precision.
In some of these embodiments, the end of the body for gripping tubing is of a concave configuration.
According to the technical scheme, the concave structure is arranged on the body of the clamping block, so that the clamping of the pipe is facilitated.
In some embodiments, the connecting assembly comprises a first connecting piece, the first connecting piece is in an L shape with one end vertically arranged and the other end horizontally arranged, the vertical end of the first connecting piece is fixedly connected with the gear ring, and the horizontal end of the first connecting piece extends towards the direction departing from the through hole; the horizontal end of the first connecting piece is connected with a second connecting piece which is horizontally arranged, the second connecting piece extends along the radius direction of the through hole, a third connecting piece which can move along the extending direction of the second connecting piece is arranged on the second connecting piece, the third connecting piece is vertically arranged, the lower end of the third connecting piece is connected with the second connecting piece in a sliding manner, and the upper end of the third connecting piece is connected with the welding gun assembly.
This technical scheme is through third connecting piece and second connecting piece sliding connection, has increased the working distance of welder subassembly in order to be applicable to the tubular product of welding different diameters, has increased the working height of welder subassembly through the third connecting piece for the working range of welder subassembly is wider.
In some embodiments, the welding gun assembly comprises a welding gun oscillator, the welding gun oscillator is fixedly connected with the upper end of the third connecting piece, the welding gun oscillator is connected with the welding gun, and the head of the welding gun faces the through hole.
According to the technical scheme, the welding gun oscillator is arranged to control the welding gun to swing left and right, so that automatic welding of the welding gun is realized.
In some embodiments, the welding device further comprises an upper cover which covers the top surface of the workbench.
This technical scheme closes at the workstation top surface through the upper cover lid to protect ring gear and gear, avoid the welding slag that welding process produced to drop the meshing department of gear and ring gear, influence the motion of gear and ring gear.
Based on the technical scheme, the automatic welding device for the pipe in the embodiment of the utility model realizes the welding of the pipe through the rotation of the welding gun assembly under the condition that the pipe is kept still, can avoid the welding error caused by the sliding of the pipe in the welding process, and has high welding precision and good welding effect.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the utility model without limiting the utility model. In the drawings:
FIG. 1 is a schematic structural diagram of an automatic welding device for pipes provided by the present invention when the cover is not closed;
FIG. 2 is a schematic structural diagram of the automatic pipe welding device according to the present invention when the upper cover is closed;
FIG. 3 is a schematic structural view of a table of an automated pipe welding apparatus according to the present invention;
FIG. 4 is a schematic structural diagram of a base of the automatic pipe welding apparatus according to the present invention;
fig. 5 is a schematic structural diagram of a clamping block of the automatic pipe welding device provided by the utility model.
In the figure:
1. a work table; 2. a clamping assembly; 3. a rotating assembly; 4. a welding gun assembly; 5. a connecting assembly; 6. an upper cover; 7. a first through groove; 8. a second through groove; 9. a third through groove;
11. a table top; 12. a support member; 13. a base;
21. rotating the handle; 22. a clamping block; 23. a screw;
221. a body; 222. a protrusion; 223. a connecting portion;
31. a gear; 32. a motor; 33. a ring gear;
41. a welding gun oscillator; 42. a welding gun;
51. a third connecting member; 52. a second connecting member; 53. a first connecting member.
Detailed Description
The technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
The terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", "third" may explicitly or implicitly include one or more of the features.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 5, in an exemplary embodiment of the automatic welding device for pipes according to the present invention, the automatic welding device for pipes includes a worktable 1, a clamping assembly 2, a rotating assembly 3, a connecting assembly 5, a welding gun assembly 4; the middle part of the workbench 1 is provided with a through hole with one side opened for placing a pipe, the top of the workbench 1 is provided with a first through groove 7, and the first through groove 7 is arranged around the through hole; the clamping assembly 2 is connected to the workbench 1; the rotating assembly 3 comprises a gear ring 33, a gear 31 and a motor 32, the gear ring 33 is arranged in the first through groove 7 of the workbench 1, the gear 31 is externally meshed with the gear ring 33, the gear 31 is arranged at the top of the workbench 1, the motor 32 is used for driving the gear 31 to rotate, the motor 32 is arranged on the workbench 1, and an output shaft of the motor 32 is fixedly connected with the gear 31; the connecting assembly 5 is fixedly connected with the gear ring 33; the welding gun assembly 4 is connected with the connecting assembly 5.
The working principle of the automatic pipe welding device is as follows: the clamping assembly 2 clamps the pipe placed in the through hole, the motor 32 drives the gear 31 to rotate, and the gear ring 33 slides in the first through groove 7 along the circumferential direction under the action of the gear 31; the gear ring 33 drives the welding gun assembly 4 to rotate around the through hole through the connecting assembly 5 to perform welding work.
In the automatic pipe welding device, the rotating component 3 is arranged, and the gear ring 33 of the rotating component 3 is utilized to drive the connecting component 5 to rotate, so that the welding gun component 4 rotates around the through hole of the workbench 1 and the pipe in the through hole; the pipe is clamped by the clamping assembly 2, so that the pipe is prevented from rotating in the welding process, and the welding quality is reduced; the gear ring 33 is driven by the motor 32 to rotate through the external engagement of the gear 31 and the gear ring 33; the automatic pipe welding device can realize the welding of the pipe through the rotation of the welding gun assembly 4 under the condition that the pipe is kept still.
In order to make the whole structure more compact, as shown in fig. 1-2, the workbench 1 comprises a base 13, a supporting member 12 is connected to the top surface of the base 13, the supporting member 12 is vertically arranged, and the upper end of the supporting member 12 is connected to a table top 11; the table-board 11 and the base 13 are arranged in parallel, and the top of the table-board 11 is provided with a first through groove 7. It should be noted that the work table 1 is a hollow structure, and the purpose of the work table is to place the clamping assembly 2.
In order to clamp pipes with different diameters, as shown in fig. 1 and 5, the clamping assembly 2 comprises two clamping blocks 22, a screw 23 and a rotating handle 21 which are oppositely arranged, the two clamping blocks 22 are symmetrically arranged at two sides of an opening through hole at the middle part of the workbench 1, the lower end of each clamping block 22 is connected with the base 13 in a sliding manner, and the upper end of each clamping block 22 is connected with the table top 11 in a sliding manner; the screw 23 is arranged between the two clamping blocks 22, two ends of the screw 23 are respectively connected with the corresponding clamping blocks 22 through threads, and the thread directions of the two ends of the screw 23 are opposite; the rotating handle 21 is fixedly connected with one end of the screw rod 23, and the rotating handle 21 is arranged on one side of one clamping block 22 far away from the other clamping block 22. It should be noted that the screw 23 is used for driving the two clamping blocks 22 to move towards or away from each other synchronously, and the turning handle 21 can drive the screw 23 to turn so as to drive the two clamping blocks 22 to move towards or away from each other.
It should be further noted that, as shown in fig. 5, the clamping block 22 includes a body 221, the upper end and the lower end of the body 221 are both provided with a protrusion 222, the protrusion 222 at the upper end of the body 221 is slidably connected with the second through groove 8 arranged at the bottom of the table 11, and the protrusion 222 at the lower end of the body 221 is slidably connected with the third through groove 9 arranged at the top of the base 13; the body 221 is provided at one side in the longitudinal direction with a coupling portion 223 for coupling the screw 23. In the automatic pipe welding device, the protrusion 222 arranged on the clamping block body 221 is in sliding connection with the through groove, so that the moving direction of the clamping block 22 is ensured, and the phenomenon that the clamping effect of the pipe is weakened due to the deviation of the moving direction of the clamping block 22 is avoided; the screw 23 indirectly drives the clamping block body 221 to move by driving the connecting part 223 to move, so that unstable movement caused by uneven stress due to the fact that the screw 23 directly drives the clamping block body 221 to move is avoided.
In order to increase the working range of the welding gun assembly 4, as shown in fig. 1 and 2, the connecting assembly 5 includes a first connecting piece 53, the first connecting piece 53 is in an L shape with one end vertically arranged and the other end horizontally arranged, the vertical end of the first connecting piece 53 is fixedly connected with the gear ring 33, and the horizontal end of the first connecting piece 53 extends towards the direction away from the through hole; the horizontal end of the first connecting piece 53 is connected with a second connecting piece 52 which is horizontally arranged, the second connecting piece 52 extends along the radius direction of the through hole, a third connecting piece 51 which can move along the extending direction of the second connecting piece 52 is arranged on the second connecting piece 52, the third connecting piece 51 is vertically arranged, the lower end of the third connecting piece 51 is connected with the second connecting piece 52 in a sliding way, and the upper end of the third connecting piece 51 is connected with the welding gun component 4. Through the sliding connection of the third connecting piece 51 and the second connecting piece 52, the working distance of the welding gun assembly 4 is increased so as to be suitable for welding pipes with different diameters; the working height of the welding gun assembly 4 is increased through the third connecting piece 51, so that the working range of the welding gun assembly 4 is wider.
It should be noted that, as shown in fig. 1, the welding gun assembly 4 includes a welding gun oscillator 41, the welding gun oscillator 41 is fixedly connected to the upper end of the third connecting member 51, the welding gun oscillator 41 is connected to the welding gun 42, the head of the welding gun 42 faces the through hole, and the welding gun oscillator 41 is connected to a control box, which is well known to those skilled in the art and will not be described herein again. The operator commands the movement of the torch oscillator 41 by manipulating the control box, and the welding torch 42 moves along with the torch oscillator 41 to perform the welding work.
As shown in fig. 2, the welding device further comprises an upper cover 6, and the upper cover 6 covers the top surface of the workbench 1. The upper cover 6 covers the top surface of the workbench 1, so that the gear ring 33 and the gear 31 are protected, and welding slag generated in the welding process is prevented from falling to the meshing position of the gear 31 and the gear ring 33 to influence the movement of the gear 31 and the gear ring 33, so that the welding quality of the welding gun assembly 4 is influenced.
Finally, it should be noted that: the embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the utility model or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the utility model as defined by the appended claims.
Claims (8)
1. Automatic welding set of tubular product, its characterized in that includes:
the pipe fitting device comprises a workbench (1), wherein a through hole with one side opened is formed in the middle of the workbench (1) so as to place a pipe, a first through groove (7) is formed in the top of the workbench (1), and the first through groove (7) is arranged around the through hole;
the clamping assembly (2) is used for clamping the pipe placed in the through hole, and the clamping assembly (2) is connected to the workbench (1);
rotating assembly (3) comprising:
a ring gear (33), the ring gear (33) being disposed in a first through slot (7) of the table (1);
a gear (31), wherein the gear (31) is externally meshed with the gear ring (33), and the gear (31) is arranged on the top of the workbench (1);
the motor (32) is used for driving the gear (31) to rotate, the motor (32) is installed on the workbench (1), and an output shaft of the motor (32) is fixedly connected with the gear (31);
the connecting assembly (5), the connecting assembly (5) is fixedly connected with the gear ring (33);
the welding gun assembly (4), the welding gun assembly (4) is connected with the connecting assembly (5);
wherein, when the motor (32) drives the gear (31) to rotate, the gear ring (33) can slide in the first through groove (7) along the circumferential direction under the action of the gear (31); the gear ring (33) drives the welding gun assembly (4) to rotate around the through hole through the connecting assembly (5) so as to complete welding work.
2. The automatic welding device for the pipes according to the claim 1 is characterized in that the working table (1) comprises a base (13), a supporting piece (12) is connected to the top surface of the base (13), the supporting piece (12) is vertically arranged, and the upper end of the supporting piece (12) is connected to a table top (11); the table top (11) and the base (13) are arranged in parallel, and the first through groove (7) is formed in the top of the table top (11).
3. The automated welding device of tubes according to claim 2, characterized in that said clamping assembly (2) comprises:
the clamping device comprises two oppositely arranged clamping blocks (22), wherein the two clamping blocks (22) are symmetrically arranged on two sides of an opening through hole in the middle of the workbench (1), the lower ends of the clamping blocks (22) are connected with the base (13) in a sliding mode, and the upper ends of the clamping blocks (22) are connected with the table top (11) in a sliding mode;
the screw rod (23) is used for driving the two clamping blocks (22) to synchronously approach or separate from each other, the screw rod (23) is arranged between the two clamping blocks (22), two ends of the screw rod (23) are respectively connected with the corresponding clamping blocks (22) through threads, and the thread directions of the two ends of the screw rod (23) are opposite;
the rotating handle (21), the rotating handle (21) is fixedly connected with one end of the screw rod (23), and the rotating handle (21) is arranged on one side, away from the other clamping block (22), of one clamping block (22);
wherein, rotating the rotating handle (21) can drive the screw rod (23) to rotate so as to enable the two clamping blocks (22) to approach or move away from each other.
4. The automatic welding device for pipes according to claim 3, characterized in that the clamping block (22) comprises a body (221), the upper end and the lower end of the body (221) are provided with protrusions (222), the protrusion (222) at the upper end of the body (221) is slidably connected with the second through groove (8) arranged at the bottom of the table top (11), and the protrusion (222) at the lower end of the body (221) is slidably connected with the third through groove (9) arranged at the top of the base (13); and a connecting part (223) used for connecting the screw rod (23) is arranged on one longitudinal side of the body (221).
5. The automated welding device of pipes according to claim 4, characterized in that the end of the body (221) for clamping the pipe is of a concave structure.
6. The automatic pipe welding device according to claim 1, wherein the connecting assembly (5) comprises a first connecting piece (53), the first connecting piece (53) is in an L shape with one end vertically arranged and one end horizontally arranged, the vertical end of the first connecting piece (53) is fixedly connected with the gear ring (33), and the horizontal end of the first connecting piece (53) extends in a direction away from the through hole; the horizontal end of first connecting piece (53) is connected with second connecting piece (52) that the level set up, second connecting piece (52) extend along through-hole radius direction, be equipped with third connecting piece (51) that can follow its extending direction removal on second connecting piece (52), third connecting piece (51) vertical setting, the lower extreme of third connecting piece (51) with second connecting piece (52) sliding connection, the upper end of third connecting piece (51) with welder subassembly (4) are connected.
7. The automated pipe welding device according to claim 6, wherein the welding gun assembly (4) comprises a welding gun oscillator (41), the welding gun oscillator (41) is fixedly connected with the upper end of the third connecting piece (51), the welding gun oscillator (41) is connected with a welding gun (42), and the head of the welding gun (42) faces the through hole.
8. The automatic welding device for pipes according to claim 1, characterized in that it further comprises an upper cover (6), said upper cover (6) covering the top surface of said worktable (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220117282.3U CN216706441U (en) | 2022-01-17 | 2022-01-17 | Automatic welding device for pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220117282.3U CN216706441U (en) | 2022-01-17 | 2022-01-17 | Automatic welding device for pipes |
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| Publication Number | Publication Date |
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| CN216706441U true CN216706441U (en) | 2022-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220117282.3U Active CN216706441U (en) | 2022-01-17 | 2022-01-17 | Automatic welding device for pipes |
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| CN (1) | CN216706441U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115106629A (en) * | 2022-08-29 | 2022-09-27 | 苏州兴齐钢结构工程有限公司 | Plasma cutting device for building steel |
| CN116511784A (en) * | 2023-04-10 | 2023-08-01 | 东台市远洋不锈钢制造有限公司 | Automatic welding device for adaptable multi-angle large-sized bent pipe |
| CN116713658A (en) * | 2023-08-11 | 2023-09-08 | 湖南煤矿安全装备有限公司 | Automatic welding device for chemical oxygen self-rescuer medicine pot |
-
2022
- 2022-01-17 CN CN202220117282.3U patent/CN216706441U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115106629A (en) * | 2022-08-29 | 2022-09-27 | 苏州兴齐钢结构工程有限公司 | Plasma cutting device for building steel |
| CN115106629B (en) * | 2022-08-29 | 2022-11-29 | 苏州兴齐钢结构工程有限公司 | Plasma cutting device for building steel |
| CN116511784A (en) * | 2023-04-10 | 2023-08-01 | 东台市远洋不锈钢制造有限公司 | Automatic welding device for adaptable multi-angle large-sized bent pipe |
| CN116511784B (en) * | 2023-04-10 | 2023-09-26 | 东台市远洋不锈钢制造有限公司 | Automatic welding device for adaptable multi-angle large-sized bent pipe |
| CN116713658A (en) * | 2023-08-11 | 2023-09-08 | 湖南煤矿安全装备有限公司 | Automatic welding device for chemical oxygen self-rescuer medicine pot |
| CN116713658B (en) * | 2023-08-11 | 2023-10-24 | 湖南煤矿安全装备有限公司 | Automatic welding device for chemical oxygen self-rescuer medicine pot |
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