Hoop device for centering and fixing in steel pipe welding
By designing a fixing hoop device for steel pipe welding, the fixing and adjustment mechanism make the steel pipe interface tightly fit, the problems of large centering errors and poor welding quality during the traditional welding process are solved, and efficient and stable steel pipes are achieved welding.
Patent Information
- Application Number
- CN202420883379.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-04-25
AI Technical Summary
During the welding of traditional steel pipes, manual centering is required. The centering error is large, and the steel pipe port offset and gap are prone to occur, resulting in poor welding quality, long time and low construction efficiency.
A clamping device for centering fixing of steel pipe welding is designed, including the first clamping and the second clamping. The two-section steel pipe interfaces are tightly fitted through the fixing mechanism and the adjustment mechanism, which is suitable for automatic welding.
Through the fixing and adjustment mechanism, the stability and accuracy of steel pipe alignment are achieved, the missed welding and large weld ports are reduced during the welding process, and the welding quality and construction efficiency of steel pipes are significantly improved.
Smart Images
Figure CN222429839U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of steel pipe welding centering, and more specifically relates to a clamp device for fixing the steel pipe welding centering. Background Art
[0002] When a sewage treatment plant is being modified or expanded, it will involve a variety of process pipelines, mainly including: production pipelines, overrunning pipelines and sludge pipelines, etc., all of which are made of steel pipes and are mainly connected by welding. Traditional pipeline welding requires manual assistance for docking, and an electric hoist is needed to align the two ends of the welded pipes before welding the joints.
[0003] However, this method requires the use of an electric hoist to maintain the butt joint of the two sections of steel pipe, and requires manual assistance from workers to align the two sections of the steel pipe. During the welding process, the pipes at both ends are not easy to stabilize, the alignment error is large, and the steel pipe ends are prone to offset and large gaps. The welding process is prone to leaking welds, large butt welds, and poor welding quality, which reduces the quality of pipeline welding, takes a long time, and has low pipeline construction efficiency.
[0004] Therefore, it is necessary to provide a clamp device for centering and fixing steel pipe welding to solve the above technical problems. Utility Model Content
[0005] The utility model aims to provide a clamp device for centering and fixing a steel pipe during welding to solve the above technical problems.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A clamp device for centering and fixing a steel pipe welding is suitable for butt jointing two sections of steel pipes, comprising:
[0008] The first clamp and the second clamp are adapted to the outer diameter of the steel pipe and are symmetrically provided with two of them, the second clamp is provided with an adjustment clamp, and the first clamp is provided with an arc groove slidably adapted to the adjustment clamp;
[0009] A first reserved hole and a second reserved hole are respectively provided on the first clamping hoop and the adjusting hoop, and at least one of the holes is provided;
[0010] The first clamp and the second clamp are provided with a fixing mechanism and an adjusting mechanism, the fixing mechanism is used to fix the first clamp and the second clamp on the steel pipe, and the adjusting mechanism is used to adjust the distance between the first clamp and the second clamp.
[0011] Furthermore, the fixing mechanism comprises:
[0012] A first fixing plate and a second fixing plate are respectively arranged at two ends of the first clamp and the second clamp;
[0013] The first fixing plate and the second fixing plate are both provided with fixing holes.
[0014] Furthermore, the adjustment mechanism includes:
[0015] An adjustment plate is arranged on the first fixing plate and the second fixing plate, and an adjustment hole is opened on the adjustment plate;
[0016] The adjacent adjustment plates are connected by adjusting screws and nuts.
[0017] Furthermore, a rotating shaft is rotatably provided on the first clamp via a bearing, a connecting plate is provided on the rotating shaft, and a limiting component is provided on the connecting plate for limiting the position of the second clamp.
[0018] Furthermore, the second clamp is provided with a plurality of limiting holes, and the limiting component includes:
[0019] A limiting rod movably passes through the connecting plate and is adapted to the limiting hole, and a pulling plate is provided at the upper end of the limiting rod;
[0020] An elastic member has one end connected to the pulling plate and the other end connected to the connecting plate.
[0021] Furthermore, the inner diameters of the first clamp and the second clamp are the same, and the first reserved hole and the second reserved hole form a space for welding the interfaces of the two sections of the steel pipe.
[0022] Compared with the prior art, the beneficial effects of the present invention are:
[0023] 1. In this solution, the first clamp and the second clamp are tightly locked on the steel pipe through a fixing mechanism, and then the adjustment mechanism is used to adjust the distance between the first clamp and the second clamp, so that the interface of the two sections of the steel pipe fits tightly, and then the steel pipe interface between the first reserved hole and the second reserved hole can be welded. In summary, after the first clamp and the second clamp are installed on the two sections of the steel pipe, the steel pipe can be stably welded without manual assistance, which greatly reduces the centering error, prevents the offset and large gap at the interface of the steel pipe during welding, and greatly avoids the leakage welding and large weld during the welding process, which can significantly improve the quality of steel pipe welding and the subsequent performance of the steel pipe; the whole process saves time and labor, saves labor and time costs, greatly improves the efficiency of steel pipe construction, improves production benefits, and is highly practical.
[0024] 2. In this solution, after the interface of the two sections of steel pipes is tightly fitted by adjusting the mechanism, the connecting plate drives the limiting component to move to the corresponding position of the second clamp, and the position of the second clamp is limited, which can further improve the stability between the first clamp and the second clamp. At the same time, when the first clamp and the second clamp are removed or moved, the position of the second clamp is limited by the limiting component, which can avoid the first clamp and the second clamp from being separated from each other, and also prevent the first clamp and the second clamp from shaking and making loud noises. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 This is a schematic diagram of the structure in which the first clamp and the second clamp of the utility model are installed on a steel pipe;
[0026] Figure 2 This is a schematic diagram of the structure of the components on the first clamp and the second clamp of the utility model;
[0027] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;
[0028] Figure 4 This is a schematic diagram of the structure of the first and second clamps on the upper and lower sides of the utility model before installation;
[0029] Figure 5 This is a schematic diagram of the structure of the utility model after the first clamp and the second clamp are separated.
[0030] Description of the numbers in the figure:
[0031] 1. Steel pipe; 2. First clamp; 3. Second clamp; 4. Adjustment clamp; 5. Arc groove; 6. First reserved hole; 7. Second reserved hole; 8. Fixing mechanism; 81. First fixing plate; 82. Second fixing plate; 83. Fixing hole; 9. Adjustment mechanism; 91. Adjustment plate; 92. Adjustment hole; 93. Adjustment screw; 10. Rotating shaft; 11. Connecting plate; 12. Limiting component; 121. Limiting rod; 122. Pull plate; 123. Elastic member; 13. Limiting hole. DETAILED DESCRIPTION
[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0033] See also Figure 1-2 and Figure 4-5A clamp device for centering and fixing steel pipe welding is suitable for butt joint between two sections of steel pipe 1, comprising: a first clamp 2 and a second clamp 3, which are adapted to the outer diameter of the steel pipe 1 and are symmetrically arranged with two, an adjusting clamp 4 is arranged on the second clamp 3, and an arc groove 5 slidably adapted to the adjusting clamp 4 is opened in the first clamp 2; a first reserved hole 6 and a second reserved hole 7 are respectively opened on the first clamp 2 and the adjusting clamp 4 and at least one is provided; a fixing mechanism 8 and an adjusting mechanism 9 are provided on the first clamp 2 and the second clamp 3, the fixing mechanism 8 is used to fix the first clamp 2 and the second clamp 3 on the steel pipe 1, and the adjusting mechanism 9 is used to adjust the distance between the first clamp 2 and the second clamp 3, the inner diameters of the first clamp 2 and the second clamp 3 are the same, and the first reserved hole 6 and the second reserved hole 7 form a space for welding the interface of the two sections of steel pipe 1.
[0034] When in use, after the steel pipe is laid, the position where the pipe is welded is dug deeper to ensure the working surface for the workers, and the electric hoist is used to align the position where the two sections of the pipe are connected. After that, the device can be installed. First, the adjustment hoop 4 of the second clamp 3 can be inserted into the arc groove 5 of the first clamp 2, so that the first clamp 2 and the second clamp 3 form a whole. Then, the first clamp 2 and the second clamp 3 are symmetrically placed on the end interface positions of the two sections of steel pipes 1, and the first clamp 2 and the second clamp 3 are placed on the two steel pipes 1 respectively. Figure 1 As shown, the first clamp 2 and the second clamp 3 are tightly locked on the steel pipe 1 through the fixing mechanism 8, and the interface of the two sections of the steel pipe 1 is located between the first reserved hole 6 and the second reserved hole 7. Then, the adjustment mechanism 9 is used to adjust the distance between the first clamp 2 and the second clamp 3, and the first clamp 2 or the second clamp 3 can drive the fixed steel pipe 1 to move, so that the interface of the two sections of the steel pipe 1 fits tightly, and then the interface of the steel pipe 1 between the first reserved hole 6 and the second reserved hole 7 can be welded. After welding, the first clamp 2 and the second clamp 3 on the steel pipe 1 are removed, and the part other than the first reserved hole 6 and the second reserved hole 7 at the interface of the steel pipe 1 is welded in time, thereby completing the welding process of the steel pipe 1. In summary, after the first clamp 2 and the second clamp 3 are installed on the two sections of the steel pipe 1, the steel pipe 1 can be stably welded, and the steel pipe 1 can be centered without manual assistance, which greatly reduces the centering error, prevents the offset and large gap at the interface of the steel pipe 1 during welding, and greatly avoids the leakage welding and large welds during the welding process, which can significantly improve the quality of the steel pipe 1 welding and the subsequent use performance of the steel pipe 1; and the whole process saves time and effort, saves labor and time costs, greatly improves the efficiency of the steel pipe 1 construction, improves production efficiency, and is highly practical. After welding is completed, the device is moved to the next location for welding.
[0035] In this embodiment, preferably, please refer to Figure 1-2 and Figure 4-5The fixing mechanism 8 includes: a first fixing plate 81 and a second fixing plate 82, which are respectively arranged at the two ends of the first clamp 2 and the second clamp 3; the first fixing plate 81 and the second fixing plate 82 are both provided with fixing holes 83. After the upper and lower symmetrical first clamp 2 and the second clamp 3 are put on the outer wall of the steel pipe 1, bolts are passed through the fixing holes 83 of the upper and lower symmetrical first fixing plate 81 and the second fixing plate 82, and fixed by nuts, so that the upper and lower first clamp 2 and the second clamp 3 can be fixed together, so that they are tightly locked on the steel pipe 1.
[0036] In this embodiment, preferably, please refer to Figure 1-2 and Figure 4-5 The adjustment mechanism 9 includes: an adjustment plate 91, which is arranged on the first fixing plate 81 and the second fixing plate 82, and an adjustment hole 92 is opened on the adjustment plate 91; adjacent adjustment plates 91 are connected by adjusting screws 93 and nuts. After the first clamp 2 and the second clamp 3 are fixedly installed on the steel pipe 1, the adjusting screw 93 can be passed through the adjustment hole 92 of the adjustment plate 91, and then the nut is screwed to make the first clamp 2 and the second clamp 3 move relative to each other, which will drive the two sections of the steel pipe 1 to move relative to each other. At this time, the adjustment hoop 4 will also slide towards the arc groove 5, which will make the interface of the two sections of the steel pipe 1 fit closely, thereby avoiding the occurrence of gaps or large gaps at the interface of the two sections of the steel pipe 1, thereby improving the quality of welding and the subsequent use of the steel pipe 1.
[0037] In this embodiment, preferably, please refer to Figure 1-5 The first hoop 2 is provided with a rotating shaft 10 through a bearing, the rotating shaft 10 is provided with a connecting plate 11, and the connecting plate 11 is provided with a limiting component 12 for limiting the position of the second hoop 3. In the initial state, the limiting component 12 on the connecting plate 11 does not limit the second hoop 3. Figure 5 As shown, after the first clamp 2 and the second clamp 3 are subsequently installed on the steel pipe 1, and the interface of the two sections of the steel pipe 1 is tightly fitted by adjusting the mechanism 9, the connecting plate 11 and the rotating shaft 10 are driven to rotate, and the connecting plate 11 drives the limiting component 12 to rotate to the corresponding position of the second clamp 3, and then the position of the second clamp 3 is limited by the limiting component 12, which can further improve the stability between the first clamp 2 and the second clamp 3. At the same time, when the first clamp 2 and the second clamp 3 are removed or moved, the position of the second clamp 3 is limited by the limiting component 12, which can avoid the first clamp 2 and the second clamp 3 from being separated from each other, and also prevent the first clamp 2 and the second clamp 3 from shaking and making loud noises.
[0038] In this embodiment, preferably, please refer to Figure 3, a plurality of limiting holes 13 are provided on the second clamp 3, and the limiting component 12 includes: a limiting rod 121, which is movable through the connecting plate 11 and adapted to the limiting hole 13, and a pull plate 122 is provided at the upper end of the limiting rod 121; an elastic member 123, one end of which is connected to the pull plate 122 and the other end is connected to the connecting plate 11. The elastic member 123 in the present application is a spring. First, the pull plate 122 can be pulled upward, and the pull plate 122 will drive the limiting rod 121 to move and stretch the elastic member 123. Then, the connecting plate 11 is rotated so that the limiting rod 121 rotates to the position of the limiting hole 13 on the second clamp 3. After the pull plate 122 is released, the pull plate 122 and the limiting rod 121 can be driven to move by the rebound force of the elastic member 123, and the limiting rod 121 will eventually enter the limiting hole 13, so that the second clamp 3 can be restricted by the cooperation of the limiting rod 121 and the limiting hole 13.
[0039] It should be understood that the examples and implementation modes described herein are for illustrative purposes only and are not intended to limit the present invention. Those skilled in the art may make various modifications or changes based on the examples and implementation modes. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
[0040] It should be noted that if the embodiments of the present invention involve directional indications such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.
[0041] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes that satisfy both A and B. In addition, "multiple" refers to more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
Claims
1. A clamp device for centering and fixing steel pipes for welding, suitable for butt joint between two sections of steel pipes (1), characterized in that: include: The first clamp (2) and the second clamp (3) are adapted to the outer diameter of the steel pipe (1) and are symmetrically arranged in two pieces, the second clamp (3) is provided with an adjustment clamp (4), and the first clamp (2) is provided with an arc groove (5) that is slidably adapted to the adjustment clamp (4); A first reserved hole (6) and a second reserved hole (7), which are respectively provided on the first clamping hoop (2) and the adjusting hoop (4), and at least one of the holes is provided; The first clamp (2) and the second clamp (3) are provided with a fixing mechanism (8) and an adjusting mechanism (9); the fixing mechanism (8) is used to fix the first clamp (2) and the second clamp (3) on the steel pipe (1); and the adjusting mechanism (9) is used to adjust the distance between the first clamp (2) and the second clamp (3).
2. A steel pipe welding centering and fixing clamp device according to claim 1, characterized in that: The fixing mechanism (8) comprises: A first fixing plate (81) and a second fixing plate (82) are respectively arranged at two ends of the first clamp (2) and the second clamp (3); The first fixing plate (81) and the second fixing plate (82) are both provided with fixing holes (83).
3. A steel pipe welding centering and fixing clamp device according to claim 2, characterized in that: The adjustment mechanism (9) comprises: An adjustment plate (91) is arranged on the first fixing plate (81) and the second fixing plate (82), and an adjustment hole (92) is provided on the adjustment plate (91); Adjacent adjustment plates (91) are connected by adjusting screw rods (93) and nuts.
4. A steel pipe welding centering and fixing clamp device according to claim 1, characterized in that: A rotating shaft (10) is rotatably arranged on the first clamp (2) via a bearing, a connecting plate (11) is arranged on the rotating shaft (10), and a limiting component (12) is arranged on the connecting plate (11) for limiting the position of the second clamp (3).
5. A steel pipe welding centering and fixing clamp device according to claim 4, characterized in that: The second hoop (3) is provided with a plurality of limiting holes (13), and the limiting component (12) comprises: A limiting rod (121) movably passes through the connecting plate (11) and is adapted to fit the limiting hole (13); a pulling plate (122) is provided at the upper end of the limiting rod (121); An elastic member (123) has one end connected to the pull plate (122) and the other end connected to the connecting plate (11).
6. A steel pipe welding centering and fixing clamp device according to claim 1, characterized in that: The inner diameters of the first clamp (2) and the second clamp (3) are the same, and the first reserved hole (6) and the second reserved hole (7) form a space for welding the interface of the two sections of the steel pipe (1).