Inner wall and outer wall welding device for pipe manufacturing
By designing an inner and outer wall welding device for pipe making, the inner and outer double-sided welding of steel pipes is realized, and the welding defects and pipe wall deformation problems caused by single-sided welding are solved, and the quality and applicability of the pipe making process are improved.
Patent Information
- Application Number
- CN202421511782.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-06-28
AI Technical Summary
In the existing pipe-making technology, single-sided welding has problems such as welding molding defects, thermal stress causing pipe wall deformation and roundness exceeding design requirements.
A welding device for inner and outer walls for pipe making is designed, and the outer side of the steel pipe and the inner side of the steel pipe are welded through the outer welding torch to achieve double-sided welding to avoid welding defects and deformation of the pipe wall.
It realizes the simultaneous welding of the inner and outer sides of the steel pipe during the pipe making process, avoiding welding defects and pipe wall deformation problems, and adapting to steel pipes of different diameters by adjusting the height of the welding gun.
Smart Images
Figure CN222999928U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipe making, in particular to an inner and outer wall welding device for pipe making. Background Technique
[0002] Continuous automatic pipe making is that the coiled sheet raw material is continuously conveyed by equipment, rolled multiple times by multiple groups of rolling wheels, gradually curled from the flat coiled sheet to finally form a perfect circle, and the weld seam generated at the boundary of the perfect circle formation is continuously welded. After cutting, the finished welded pipe is completed. The coiled sheet raw material includes cold-rolled and hot-rolled carbon steel plates and stainless steel plates, etc.
[0003] In the prior art, the welding of steel pipes during pipe making is all carried out on the outer wall (single side) of the weld seam. The single-sided welding mainly has the following deficiencies: 1. Welding forming defects. Due to the relationship of the single-sided heat source, defects such as incomplete penetration and burn-through will occur, forming waste products; 2. The welding temperature of the single-sided heat source is high, and thermal stress is generated after welding, resulting in the deformation of the pipe wall and the roundness of the pipeline exceeding the design requirements, forming defects. For this reason, we propose an inner and outer wall welding device for pipe making that can perform double-sided welding on steel pipes during steel pipe production. Content of the Utility Model
[0004] The purpose of the utility model is to provide an inner and outer wall welding device for pipe making to solve the problems proposed in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solution: An inner and outer wall welding device for pipe making, including:
[0006] A mounting seat, a support rod is fixedly welded on the front side wall of the mounting seat, a first cross bar is fixedly welded on one side wall at the end of the support rod, a first vertical rod is fixedly welded on the bottom wall at the outer end of the first cross bar, a first sliding sleeve is fixedly welded on the front side wall of the first vertical rod, a first mounting rod is slidably connected on the first sliding sleeve, an outer welding torch is fixedly installed on the first mounting rod, a second cross bar is fixedly welded on the side wall of the support rod away from the first cross bar, a second vertical rod is fixedly welded on the outer end of the second cross bar, a second sliding sleeve is fixedly welded on the side wall of the second vertical rod, a second mounting rod is slidably connected in the second sliding sleeve, a connecting rod is fixedly welded at the bottom end of the second mounting rod, and an inner welding torch is fixedly installed on the connecting rod.
[0007] Preferably, stud bolts are threadedly connected to both the first sliding sleeve and the second sliding sleeve. A pressing block is rotatably installed at the inner end of the stud bolt, and a knob is fixedly installed at the end of the stud bolt away from the pressing block.
[0008] Preferably, sliding grooves are opened on the outer walls of both the first mounting rod and the second mounting rod, and the two pressing blocks are respectively slidably connected in the two sliding grooves.
[0009] Preferably, anti-slip patterns are provided on the inner walls of both of the sliding grooves.
[0010] Preferably, a plurality of annularly and equidistantly distributed mounting grooves are provided on the mounting base.
[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0012] 1. The outer welding torch provided in the present utility model can weld the outer side of the steel pipe, and the inner welding torch provided can weld the inner side of the steel pipe, realizing the simultaneous welding of the inner and outer sides of the steel pipe during the pipe manufacturing process, avoiding the problems of welding defects and easy deformation of the pipe wall caused by only performing outer welding, and the inner welding torch is arranged in the unformed inner cavity of the steel pipe through the cooperation of the second cross bar, second vertical bar, second mounting bar and connecting rod, avoiding the influence on the forming of the steel pipe;
[0013] 2. The first mounting bar provided in the present utility model can slide up and down in the first sliding sleeve to adjust the height of the outer welding torch, and the second mounting bar provided can slide up and down in the second sliding sleeve to adjust the height of the inner welding torch, so that when the device is in use, the height positions of the outer welding torch and the inner welding torch can be adjusted according to different steel pipe diameter sizes, improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 FIG. 1 is a schematic perspective view of an inner and outer wall welding device for pipe manufacturing proposed by the present utility model;
[0015] Figure 2 FIG. 2 is a schematic perspective view of the connection between the second mounting bar and the connecting rod in the inner and outer wall welding device for pipe manufacturing proposed by the present utility model;
[0016] Figure 3 FIG. 3 is a schematic cross-sectional side view of the connection between the first sliding sleeve and the stud in the inner and outer wall welding device for pipe manufacturing proposed by the present utility model.
[0017] In the figure: 1, mounting base; 2, support rod; 3, first cross bar; 4, first vertical bar; 5, first sliding sleeve; 6, first mounting bar; 7, outer welding torch; 8, second cross bar; 9, second vertical bar; 10, second sliding sleeve; 11, second mounting bar; 12, connecting rod; 13, inner welding torch; 14, stud; 15, pressing block; 16, knob; 17, sliding groove; 18, anti-slip pattern; 19, mounting groove. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0019] Please refer to Figures 1-3 , the present invention provides a technical solution: an inner and outer wall welding device for pipe making, including:
[0020] A mounting base 1, on the front side wall of the mounting base 1, a support rod 2 is fixedly welded. On one side wall of the end of the support rod 2, a first cross bar 3 is fixedly welded. On the outer end bottom wall of the first cross bar 3, a first vertical rod 4 is fixedly welded. On the front side wall of the first vertical rod 4, a first sliding sleeve 5 is fixedly welded. A first mounting rod 6 is slidably connected to the first sliding sleeve 5. An outer welding gun 7 is fixedly installed on the first mounting rod 6. On the side wall of the support rod 2 away from the first cross bar 3, a second cross bar 8 is fixedly welded. At the outer end of the second cross bar 8, a second vertical rod 9 is fixedly welded. On the side wall of the second vertical rod 9, a second sliding sleeve 10 is fixedly welded. A second mounting rod 11 is slidably connected in the second sliding sleeve 10. At the bottom end of the second mounting rod 11, a connecting rod 12 is fixedly welded. An inner welding gun 13 is fixedly installed on the connecting rod 12.
[0021] On both the first sliding sleeve 5 and the second sliding sleeve 10, a stud 14 is threadedly connected. At the inner end of the stud 14, a pressing block 15 is rotatably installed. At the end of the stud 14 away from the pressing block 15, a knob 16 is fixedly installed.
[0022] On the outer walls of both the first mounting rod 6 and the second mounting rod 11, a chute 17 is opened. The two pressing blocks 15 are respectively slidably connected in the two chutes 17. When the knob 16 is rotated clockwise, the stud 14 can be driven to move on the first sliding sleeve 5, thereby driving the corresponding pressing block 15 to slide in the chute 17 and press against the inner wall of the chute 17, so as to limit and fix the first mounting rod 6.
[0023] On the inner walls of the two chutes 17, anti-slip lines 18 are opened. The anti-slip lines 18 can provide the friction force when the pressing block 15 is pressed, to prevent the pressing block 15 from sliding when it is locked with the chute 17.
[0024] On the mounting base 1, a plurality of annularly and equidistantly distributed mounting grooves 19 are opened. The mounting grooves 19 can be fixedly installed at the required positions through the provided fastening bolts.
[0025] Working principle: When the utility model is in use, the device is installed at the welding position of the pipe making machine. The outer welding torch 7 provided can weld the outer side of the steel pipe, and the inner welding torch 13 provided can weld the inner side of the steel pipe, realizing the simultaneous welding of the inner and outer sides of the steel pipe during the pipe making process, avoiding the problems of welding defects and easy deformation of the pipe wall caused by only welding the outer side. Moreover, the inner welding torch 13 is arranged in the unformed inner cavity of the steel pipe through the cooperation of the second cross bar 8, the second vertical bar 9, the second mounting bar 11 and the connecting rod 12, avoiding the influence on the forming of the steel pipe. The first mounting bar 6 can slide up and down in the first sliding sleeve 5 to adjust the height of the outer welding torch 7, and the second mounting bar 11 can slide up and down in the second sliding sleeve 10 to adjust the height of the inner welding torch 13. Therefore, when the device is in use, the height positions of the outer welding torch 7 and the inner welding torch 13 can be adjusted according to different steel pipe diameter sizes, improving the applicability of the device.
[0026] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.
[0027] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. An inner and outer wall welding device for pipe manufacturing, characterized in that: include: A mounting seat (1), a support rod (2) is fixedly welded on the front side wall of the mounting seat (1), a first cross rod (3) is fixedly welded on the side wall at the end of the support rod (2), a first vertical rod (4) is fixedly welded on the outer end bottom wall of the first cross rod (3), a first sliding sleeve (5) is fixedly welded on the front side wall of the first vertical rod (4), a first mounting rod (6) is slidably connected to the first sliding sleeve (5), an outer welding gun (7) is fixedly mounted on the first mounting rod (6), a second cross rod (8) is fixedly welded on the side wall of the support rod (2) away from the first cross rod (3), a second vertical rod (9) is fixedly welded on the outer end of the second cross rod (8), a second sliding sleeve (10) is fixedly welded on the side wall of the second vertical rod (9), a second mounting rod (11) is slidably connected inside the second sliding sleeve (10), a connecting rod (12) is fixedly welded at the bottom end of the second mounting rod (11), and an inner welding gun (13) is fixedly mounted on the connecting rod (12).
2. The inner and outer wall welding device for pipe manufacturing according to claim 1, characterized in that: The first sliding sleeve (5) and the second sliding sleeve (10) are both threadedly connected with a stud (14), a clamping block (15) is rotatably mounted on the inner end of the stud (14), and a knob (16) is fixedly mounted on one end of the stud (14) away from the clamping block (15).
3. The inner and outer wall welding device for pipe manufacturing according to claim 2, characterized in that: A sliding groove (17) is provided on the outer wall of the first mounting rod (6) and the second mounting rod (11), and the two pressing blocks (15) are respectively slidably connected in the two sliding grooves (17).
4. The inner and outer wall welding device for pipe manufacturing according to claim 3, characterized in that: Anti-slip grooves (18) are provided on the inner walls of the two slide grooves (17).
5. The inner and outer wall welding device for pipe manufacturing according to claim 1, characterized in that: The mounting seat (1) is provided with a plurality of annular mounting grooves (19) which are equidistantly distributed.