Seam aligning mechanism for pipe welding
Through the combined structure of the outer to seam assembly and the inner to seam assembly, combined with the red light line lamp and the knife roller, the problem of weld position offset is solved, position consistency and accuracy during the welding process is achieved, and welding efficiency is improved.
Patent Information
- Application Number
- CN202422397580.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-30
AI Technical Summary
During the pipe welding process, the weld position is prone to shift due to external factors, which requires frequent adjustments, affecting the welding quality and efficiency.
The combined structure of the outer seam assembly and the inner seam assembly is adopted. The outer seam knife snaps into the weld before feeding, and the inner seam knife enters the weld during feeding, and is initially calibrated and guided through the red light and the knife roller to ensure the consistency of the weld position.
It effectively avoids the offset of the weld position, improves the accuracy and efficiency of welding, reduces the number of repeated tool alignments, and ensures the welding quality.
Smart Images
Figure CN223146340U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of pipe welding alignment, and particularly to a butt-joint mechanism for pipe welding. Background Art
[0002] Pipe welding is a technical method of connecting pipes or pipe fittings into a whole through the welding process, and is widely used in industries such as petroleum, chemical industry, natural gas, shipbuilding, and electric power. Welding not only requires the strength and tightness of the weld seam, but also needs to consider factors such as the material, specification, shape, working pressure, temperature, and medium of the pipe, which is a work with high technical requirements and great difficulty.
[0003] Generally, before the pipe is fed, the two ends of the pipe need to be aligned to ensure that their center lines coincide. After the pipe is fed, spot welding is used to position the pipe. However, during the feeding process of the pipe, the vibration of the motor or the bumps during the moving process will cause the deviation of the weld position on the pipe. Before spot welding or before welding processing, the position of the weld seam needs to be adjusted twice to ensure the welding quality, which is time-consuming and laborious and very inconvenient. Summary of the Invention
[0004] The purpose of the utility model is to provide a butt-joint mechanism for pipe welding, with a clever structure, which can ensure the consistency of the weld position before and after the pipe is fed, and lay a foundation for accurate and efficient welding in the later stage, and is efficient and practical.
[0005] The technical solution for realizing the purpose of the utility model is: the utility model has a frame; a butt-joint device for butt-joint processing of the pipe is arranged on the frame. The butt-joint device includes an outer butt-joint component for butt-jointing the pipe before the pipe is fed and an inner butt-joint component for butt-jointing the pipe after the pipe is fed. The outer butt-joint component includes a first cylinder arranged on the frame, a first bracket rotatably connected to the frame under the drive of the first cylinder, and an outer butt-joint knife installed on the first bracket. One end of the first cylinder is rotatably connected to the frame, the telescopic end of the first cylinder is rotatably connected to the first bracket, and the rotation axis of the first bracket is perpendicular to the extension direction of the first butt-joint knife. The inner butt-joint component includes a plurality of second cylinders fixed on the frame, a rotating bracket rotatably connected to the telescopic end of each second cylinder, a second bracket fixed on each rotating bracket, and an inner butt-joint knife fixed on the second bracket. The telescopic direction of the second cylinder is parallel to the rotation axis of the first bracket, and the rotation axis of the second bracket is perpendicular to the rotation axis of the first bracket. The outer butt-joint knife extends into the weld seam through the drive of the first cylinder on the first bracket, and the inner butt-joint knife extends into the weld seam through the drive of each second cylinder on the rotating bracket. The outer butt-joint knife extending into the weld seam and the inner butt-joint knife extending into the weld seam are coplanar.
[0006] Further, a red light one-line lamp capable of calibrating the weld seam is provided on the above-mentioned frame. A plurality of tool alignment rollers are provided on both sides of the outer butt welding tool. Each tool alignment roller presses against both sides of the weld seam after the outer butt welding tool extends into the weld seam and rolls along with the feeding of the pipe.
[0007] Further, the above-mentioned first bracket includes two side rotating seats fixed on the frame, a first tool rest rotatably connected to each side rotating seat, and a connecting plate connecting each first tool rest. The outer butt welding tool is installed on any one of the first tool rests. An intermediate rotating seat is provided on the connecting plate. The telescopic end of the first cylinder is rotatably connected to the intermediate rotating seat. A limit stop block that can cooperate with and press against the connecting plate is also provided on the frame. The rotating bracket is rotatably connected to the frame through the rotational connection between the first cylinder and the intermediate rotating seat and the rotational connection between the first tool rest and the side rotating seat, and is rotationally limited by the pressing of the connecting plate and the limit stop block.
[0008] Further, a feeding detection sensor capable of sensing the feeding of the pipe is provided on the above-mentioned outer butt welding tool.
[0009] Further, the above-mentioned rotating bracket includes a first rotating seat fixed on the frame, a second rotating seat fixed on the second bracket, connecting rods and rotating rods arranged on both sides of the first rotating seat and the second rotating seat. The first rotating seats on each rotating bracket are connected through a connecting shaft. The connecting shaft is arranged perpendicular to the telescopic direction of the second cylinder. The first rotating seat and the second rotating seat are coplanar. The rotating rod is in a V shape. A first connecting shaft is provided on the first rotating seat, a second connecting shaft and a third connecting shaft are provided on the second rotating seat, and a fourth connecting shaft is rotatably provided at the telescopic end of the second cylinder. The first connecting shaft, the second connecting shaft, the third connecting shaft, and the fourth connecting shaft are all parallel to each other and are also parallel to the connecting shaft. One end of each rotating rod is rotatably connected to the first rotating seat through the first connecting shaft, the middle end of each rotating rod is rotatably connected to the second rotating seat through the third connecting shaft, and the other end of each rotating rod is rotatably connected to the telescopic end of the second cylinder through the fourth connecting shaft. One end of each connecting rod is rotatably connected to the second rotating seat through the second connecting shaft, and the other end of each connecting rod is rotatably connected to the first rotating seat through the connecting shaft. The inner butt welding tool on the second bracket is rotatably connected to the frame through the driving of each second cylinder on the rotating rod, the cooperation between the rotating rod and the first rotating seat, and the cooperation between the rotating rod and the second rotating seat.
[0010] The utility model has positive effects: (1) By setting the butt-welding device into an external butt-welding component and an internal butt-welding component, the external butt-welding knife on the external butt-welding component is clamped into the weld before the pipe material is fed, so as to position the weld on the pipe material and separate from the weld during the feeding process of the pipe material. During the feeding process of the pipe material, the internal butt-welding knife enters the weld, and after the external butt-welding knife is driven by the first cylinder to turn away, it is arranged coplanarly with the internal butt-welding knife driven by the second cylinder to unfold. When the external butt-welding knife separates from the weld, the internal butt-welding knife is clamped into the weld, thus ensuring that the position of the weld on the pipe material before and after feeding will not shift due to external factors, effectively solving the problem that the pipe material needs to be re-knifed after feeding in the prior art. Through the setting of the external butt-welding and internal butt-welding knives, the consistency of the weld before and after feeding is ensured, and at the same time, it lays a foundation for the accuracy of the subsequent weld welding, which is efficient and practical.
[0011] (2) By setting a red light one-line lamp on the frame, the position of the pipe material is adjusted based on the red light one-line lamp as the basis for knifing, and at the same time, it is also used as the butt-welding basis for the external butt-welding knife and the internal butt-welding knife. Through the preliminary calibration of the pipe material, the accuracy of the external butt-welding knife during the preliminary knifing and positioning is also ensured. At the same time, by setting a knifing roller on the external butt-welding knife, on the one hand, it can press against and guide the side of the weld to ensure the smooth feeding of the pipe material, and on the other hand, it also limits the extension of the external butt-welding knife into the weld through the knifing roller to avoid excessive extension of the external butt-welding knife, which is efficient and convenient.
[0012] (3) By setting two side rotating seats, when an external butt-welding knife is installed on one of the first tool holders, a spare external butt-welding knife can be installed on the first tool holder on the other side, so as to be applicable to pipe materials with different positions and different welds, and at the same time, it is also convenient for replacing the external butt-welding knife on the using side. In addition, some counterweights can be installed on the first tool holder to ensure the balance of the two side rotating seats.
[0013] (4) By setting a feeding detection sensor on the external butt-welding knife, the feeding of the pipe material is sensed by the feeding detection sensor. After the external butt-welding knife is completely separated from the weld on the pipe material, that is, after the feeding detection sensor senses that there is no pipe material feeding, the first cylinder drives the external butt-welding knife to lift, avoiding the collision or interference between the external butt-welding knife and the pipe material after welding and discharging.
[0014] (5) The second cylinder drives the rotating rod to rotate, the rotating rod drives the second rotating seat to turn over, and then drives the internal butt-welding to rotate on the frame, ensuring the smoothness and stability of the knifing and lowering of each internal butt-welding knife, which is efficient and practical. Description of the Drawings
[0015] In order to make the content of the present utility model easier to be clearly understood, the following further detailed description of the present utility model is made according to specific embodiments in conjunction with the accompanying drawings, where
[0016] Figure 1 is a schematic diagram of the overall structure of the butt joint mechanism for pipe welding in the present utility model;
[0017] Figure 2 is a schematic diagram of the overall structure of the outer butt joint assembly in the present utility model;
[0018] Figure 3 is a schematic diagram of the overall structure of the inner butt joint assembly in the present utility model;
[0019] Figure 4 is a schematic diagram of the overall structure of the rotating bracket in the present utility model. Specific embodiments
[0020] See Figures 1 to 4 , the present utility model has a frame 1; a butt joint device capable of performing butt joint treatment on pipes is provided on the frame 1, and the butt joint device includes an outer butt joint assembly 2 for butt jointing the pipes before the pipes are fed and an inner butt joint assembly 3 for butt jointing the pipes after the pipes are fed. The outer butt joint assembly 2 includes a first cylinder 21 provided on the frame 1, a first bracket 22 rotatably connected to the frame 1 under the drive of the first cylinder 21, and an outer butt joint knife 23 mounted on the first bracket 22. One end of the first cylinder 21 is rotatably connected to the frame 1, the telescopic end of the first cylinder 21 is rotatably connected to the first bracket 22, and the rotation axis of the first bracket 22 is perpendicular to the extension direction of the first butt joint knife. The inner butt joint assembly 3 includes a plurality of second cylinders 31 fixed on the frame 1, a rotating bracket 32 rotatably connected to the telescopic ends of the respective second cylinders 31, a second bracket 34 fixed on the respective rotating brackets 32, and an inner butt joint knife 35 fixed on the second bracket 34. The telescopic direction of the second cylinder 31 is parallel to the rotation axis of the first bracket 22, and the rotation axis of the second bracket 34 is perpendicular to the rotation axis of the first bracket 22. The outer butt joint knife 23 extends into the weld seam by the drive of the first cylinder 21 on the first bracket 22, and the inner butt joint knife 35 extends into the weld seam by the drive of the respective second cylinders 31 on the rotating bracket 32. The outer butt joint knife 23 extending into the weld seam and the inner butt joint knife 35 extending into the weld seam are arranged coplanarly.
[0021] A red light one - line lamp 24 capable of calibrating the weld seam is provided on the frame 1. A plurality of knife - aligning rollers 232 are provided on both sides of the outer butt joint knife 23. After the outer butt joint knife 23 extends into the weld seam, each knife - aligning roller 232 presses against both sides of the weld seam and rolls along with the feeding of the pipe.
[0022] The first bracket 22 includes two side rotating seats 221 fixed on the frame 1, a first tool rest 222 rotatably connected to each side rotating seat 221, and a connecting plate 223 connecting the first tool rests 222. The outer butt welding tool 23 is installed on any one of the first tool rests 222. A middle rotating seat 211 is provided on the connecting plate 223, and the telescopic end of the first cylinder 21 is rotatably connected to the middle rotating seat 211. A limit stop 25 that can cooperate with and press against the connecting plate 223 is further provided on the frame 1. The rotating bracket 32 is rotatably connected to the frame 1 through the rotational connection between the first cylinder 21 and the middle rotating seat 211 and the rotational connection between the first tool rest 222 and the side rotating seat 221, and is rotationally limited by the pressing between the connecting plate 223 and the limit stop 25.
[0023] An infeed detection sensor 231 capable of sensing the infeed of the pipe is provided on the outer butt welding tool 23.
[0024] The rotating bracket 32 includes a first rotating seat 321 fixed on the frame 1, a second rotating seat 322 fixed on the second bracket 34, connecting rods 323 and rotating rods 324 arranged on both sides of the first rotating seat and the second rotating seat 322. The first rotating seats 321 on each rotating bracket 32 are connected by a connecting shaft 33. The connecting shaft 33 is arranged perpendicular to the telescopic direction of the second cylinder 31. The first rotating seat 321 and the second rotating seat 322 are arranged in the same plane. The rotating rod 324 is in a V shape. A first connecting shaft 325 is provided on the first rotating seat 321, a second connecting shaft 326 and a third connecting shaft 327 are provided on the second rotating seat 322, and a fourth connecting shaft 328 is rotatably provided at the telescopic end of the second cylinder 31. The first connecting shaft 325, the second connecting shaft 326, the third connecting shaft 327, and the fourth connecting shaft 328 are all arranged in parallel and are all parallel to the connecting shaft 33. One end of each rotating rod 324 is rotatably connected to the first rotating seat 321 through the first connecting shaft 325, the middle end of each rotating rod 324 is rotatably connected to the second rotating seat 322 through the third connecting shaft 327, and the other end of each rotating rod 324 is rotatably connected to the telescopic end of the second cylinder 31 through the fourth connecting shaft 328. One end of each connecting rod 323 is rotatably connected to the second rotating seat 322 through the second connecting shaft 326, and the other end of each connecting rod 323 is rotatably connected to the first rotating seat 321 through the connecting shaft 33. The inner butt welding tool 35 on the second bracket 34 is rotatably connected to the frame 1 through the driving of each second cylinder 31 on the rotating rod 324, the cooperation between the rotating rod 324 and the first rotating seat 321, and the cooperation between the rotating rod 324 and the second rotating seat 322.
[0025] Working principle of the utility model: During the use of the utility model, first turn on the red light linear light 24, and adjust the position of the weld on the pipe through the light of the red light linear light 24. After the weld is adjusted, the external butt welding tool 23 is driven by the first cylinder 21 to be clamped into the weld. At the same time, the second cylinder 31 drives the rotating bracket 32 and the internal butt welding tool 35 on the rotating bracket 32 to rotate until the internal butt welding tool 35 and the external butt welding tool 23 are coplanar and then stop. After the external butt welding tool 23 is clamped into the weld, each butt welding roller 232 on the external butt welding tool 23 presses against both sides of the weld. After the external butt welding tool 23 is clamped into the weld, the feeding detection sensor 231 detects that there is a pipe to be fed, and transmits the detected signal to the controller. The controller controls the pipe to start feeding. During the feeding process of the pipe, the butt welding rollers 232 roll on both sides of the weld on the pipe, and the external butt welding tool 23 gradually disengages from the weld. At the same time, the internal butt welding tool 35 enters the weld. After the feeding detection sensor 231 detects that the pipe has been completely fed, the controller controls the first cylinder 21. The first cylinder 21 drives the first bracket 22 to rotate and lift the external butt welding tool 23 to avoid collision or interference when the external butt welding tool 23 and the welded pipe are discharged later. The utility model effectively solves the problem that the weld on the pipe in the prior art needs to be adjusted twice before spot welding or processing, ensures the consistency of the weld position on the pipe during feeding and processing, avoids the problem of repeated tool alignment, greatly improves the feeding and welding efficiency, and at the same time lays a foundation for the accuracy of subsequent welding. It is efficient and practical.
[0026] The specific embodiments described above further elaborate on the purpose, technical solutions, and beneficial effects of the utility model. It should be understood that the above are only specific embodiments of the utility model and do not limit the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model shall be included within the protection scope of the utility model.
Claims
1. The butt joint mechanism for pipe welding has a frame; it is characterized in that: A butt-welding device capable of butt-welding pipes is provided on the frame. The butt-welding device includes an outer butt-welding assembly for butt-welding the pipe before the pipe is fed and an inner butt-welding assembly for butt-welding the pipe after the pipe is fed. The outer butt-welding assembly includes a first cylinder provided on the frame, a first bracket rotatably connected to the frame under the drive of the first cylinder, and an outer butt-welding tool mounted on the first bracket. One end of the first cylinder is rotatably connected to the frame, and the telescopic end of the first cylinder is rotatably connected to the first bracket. The rotation axis of the first bracket is perpendicular to the extension direction of the first butt-welding tool. The inner butt-welding assembly includes a plurality of second cylinders fixed on the frame, a rotating bracket rotatably connected to the telescopic end of each second cylinder, a second bracket fixed on each rotating bracket, and an inner butt-welding tool fixed on the second bracket. The telescopic direction of the second cylinder is parallel to the rotation axis of the first bracket, and the rotation axis of the second bracket is perpendicular to the rotation axis of the first bracket. The outer butt-welding tool extends into the weld seam by the drive of the first cylinder on the first bracket, and the inner butt-welding tool extends into the weld seam by the drive of each second cylinder on the rotating bracket. The outer butt-welding tool extending into the weld seam and the inner butt-welding tool extending into the weld seam are arranged coplanarly.
2. The butt joint mechanism for pipe welding according to claim 1, characterized in that: A red light one-line lamp capable of calibrating the weld seam is provided on the frame. A plurality of tool alignment rollers are provided on both sides of the outer butt-welding tool. After the outer butt-welding tool extends into the weld seam, each tool alignment roller presses against both sides of the weld seam and rolls along with the feeding of the pipe.
3. The butt joint mechanism for pipe welding according to claim 2, characterized in that: The first bracket includes two side rotating seats fixed on the frame, a first tool holder rotatably connected to each side rotating seat, and a connecting plate connecting the first tool holders. The outer butt-welding tool is mounted on any one of the first tool holders. A middle rotating seat is provided on the connecting plate, and the telescopic end of the first cylinder is rotatably connected to the middle rotating seat. A limit stop block capable of cooperating and pressing against the connecting plate is also provided on the frame. The rotating bracket is rotatably connected to the frame through the rotation connection of the first cylinder and the middle rotating seat and the cooperation of the first tool holder and the side rotating seat, and the rotation is limited by the pressing of the connecting plate and the limit stop block.
4. The butt joint mechanism for pipe welding according to claim 3, characterized in that: An infeed detection sensor capable of sensing the feeding of the pipe is provided on the outer butt-welding tool.
5. The butt joint mechanism for pipe welding according to claim 4, characterized in that: The rotating bracket includes a first rotating seat fixed on the frame, a second rotating seat fixed on the second bracket, a connecting rod and a rotating rod arranged on both sides of the first rotating seat and the second rotating seat. The first rotating seats on each rotating bracket are connected by a connecting shaft, and the connecting shaft is arranged perpendicular to the telescopic direction of the second cylinder. The first rotating seat and the second rotating seat are arranged on the same plane. The rotating rod is V-shaped. The first rotating seat is provided with a first coupling shaft, the second rotating seat is provided with a second coupling shaft and a third coupling shaft, and the telescopic end of the second cylinder is rotatably provided with a fourth coupling shaft. The first coupling shaft, the second coupling shaft, the third coupling shaft and the fourth coupling shaft are all arranged in parallel and are all parallel to the connecting shaft. One end of each rotating rod is rotatably connected to the first rotating seat through the first coupling shaft, the middle end of each rotating rod is rotatably connected to the second rotating seat through the third coupling shaft, and the other end of each rotating rod is rotatably connected to the telescopic end of the second cylinder through the fourth coupling shaft. One end of each connecting rod is rotatably connected to the second rotating seat through the second coupling shaft, and the other end of each connecting rod is rotatably connected to the first rotating seat through the connecting shaft. The inner butt seam cutter on the second bracket is rotatably connected to the frame through the driving of each second cylinder on the rotating rod, the cooperation between the rotating rod and the first rotating seat, and the cooperation between the rotating rod and the second rotating seat.