Clamping device for stainless steel pipe welding

Abstract

The utility model discloses a clamping device for stainless steel pipe welding, which relates to the technical field of stainless steel pipe welding processing and comprises a base, supporting seats used for aligning and lapping two stainless steel pipes are arranged at two ends above the base, each supporting seat comprises a supporting frame, two first rotating rollers are arranged above the supporting frame, and the two first rotating rollers are arranged on the supporting frame. The first rotating roller is rotationally connected with the supporting frame through a bearing. By arranging the supporting base, the lifting assembly, the driving assembly and the clamping mechanism, the end positions of the two stainless steel pipes can be aligned and in butt joint rapidly, transverse movement of the two stainless steel pipes is limited, and welding operation can be conducted on the butt joint position of the two stainless steel pipes subsequently; during welding, the two stainless steel pipes can be driven to synchronously and circumferentially rotate by driving the first rotating roller, so that the butt joint of the two stainless steel pipes can be annularly and continuously welded, and the working efficiency is greatly improved; in addition, the scheme is suitable for clamping stainless steel pipes of various sizes and specifications, so that the requirements of users are met.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel pipe welding processing, in particular to a clamping device for stainless steel pipe welding. Background Technique

[0002] The welding of stainless steel pipes is a key link in pipe manufacturing and installation. The welding quality directly affects the safety, corrosion resistance and service life of the pipe system. When butt-welding stainless steel pipes, a reasonable clamping method can prevent welding deformation, ensure the forming quality of the weld seam, and improve the welding efficiency.

[0003] After retrieval, the clamping device for steel pipe welding disclosed in the publication number CN220312350U installs a pressing table in the support frame at the upper end of the support table, which can align and clamp the steel pipes placed at the upper ends of the two support tables in the horizontal and vertical directions, so as to ensure the accuracy of the connection of the two steel pipe ports and improve the welding accuracy. However, in actual use, after clamping and fixing two stainless steel pipes by using this technology, the weldable area is only the upper area of the butt joint. When the upper surface of the butt joint of the two stainless steel pipes is welded and fixed, it is impossible to perform subsequent welding operations on its lower surface. At this time, it is necessary to loosen the clamping device and then flip the two stainless steel pipes so that other areas to be welded are exposed above to continue the welding operation, resulting in cumbersome operation steps and low welding efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to provide a clamping device for stainless steel pipe welding in order to solve the problems in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A clamping device for stainless steel pipe welding, including a base, two support seats for aligning and overlapping two stainless steel pipes are arranged at both ends above the base, the support seat includes a support frame, and two first rollers are arranged above the support frame. The first roller is rotationally connected to the support frame through a bearing; a driving component for driving the first roller to rotate relative to the support frame is installed on one side of the first roller, and a lifting component is installed between the base and the support seat for adjusting the position height of the support seat relative to the top surface of the base, so that the position heights of the two stainless steel pipes are aligned; two groups of clamping mechanisms are symmetrically arranged at both ends of the middle of the base for clamping and fixing the two butt-jointed stainless steel pipes to limit the lateral displacement of the two butt-jointed stainless steel pipes; the clamping mechanism includes a fixed frame, a pushing component is installed at the upper end of the fixed frame, the output end of the pushing component is fixedly connected with a connecting frame, and four second rollers are distributed at both ends inside the connecting frame.

[0006] As a further solution of the utility model: the driving assembly includes a synchronous motor, and the output end of the synchronous motor is in transmission connection with one end rotating shaft of the first roller through a pulley group.

[0007] As a further solution of the utility model: the four second rollers are symmetrically distributed at the four corner ends inside the connecting frame, and the four second rollers are rotatably connected with the connecting frame through bearings.

[0008] As a further solution of the utility model: the cross section of the connecting frame is in a "V" - shaped structure, and the included angle of the inner side surface of the connecting frame is an obtuse angle.

[0009] As a further solution of the utility model: the lifting assembly and the pressing assembly are cylinders, hydraulic cylinders or electric telescopic rods.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] By setting the support base, the lifting assembly, the driving assembly and the clamping mechanism, through the coordinated action of multiple mechanisms, the end positions of two stainless steel pipes can be quickly aligned and butted, and the lateral movement of the two stainless steel pipes can be restricted, so as to facilitate the subsequent welding operation at the butting joint of the two stainless steel pipes; secondly, during welding, the first roller can be driven to drive the two stainless steel pipes to rotate synchronously in the circumferential direction, so as to facilitate the circumferential continuous welding at the butting joint of the two stainless steel pipes, greatly improving the working efficiency; in addition, this solution is applicable to the clamping of stainless steel pipes of various sizes and specifications to meet the needs of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a structural schematic diagram of the utility model;

[0013] Figure 2 is a schematic diagram of the use state of the utility model;

[0014] Figure 3 is a schematic diagram of the connection structure of the connecting frame and the second roller of the clamping mechanism of the utility model;

[0015] Figure 4 is a schematic diagram of the connection structure of the fixed frame and the pressing assembly of the clamping mechanism of the utility model.

[0016] In the figure: 1, base; 2, support base; 201, support frame; 202, first roller; 3, lifting assembly; 4, driving assembly; 5, clamping mechanism; 501, fixed frame; 502, pressing assembly; 503, connecting frame; 504, second roller. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] 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.

[0018] See also Figures 1 to 4 In an embodiment of the utility model, a clamping device for welding stainless steel pipes includes a base 1, and support bases 2 for aligning and overlapping two stainless steel pipes are arranged at both ends above the base 1. The support base 2 includes a support frame 201, and two first rollers 202 are arranged above the support frame 201. The first rollers 202 are rotatably connected to the support frame 201 through bearings.

[0019] A driving component 4 for driving the first roller 202 and the support frame 201 to rotate relative to each other is installed on one side of the first rotating roller 202. A lifting component 3 is installed between the base 1 and the support seat 2 for adjusting the position height of the support seat 2 relative to the top surface of the base 1 so that the position heights of the two stainless steel pipes are aligned; two groups of clamping mechanisms 5 are symmetrically arranged at both ends of the middle part of the base 1 for clamping and fixing the two butted stainless steel pipes to limit the lateral displacement of the two butted stainless steel pipes.

[0020] The clamping mechanism 5 includes a fixed frame 501, a pushing assembly 502 is installed on the upper end of the fixed frame 501, the output end of the pushing assembly 502 is fixedly connected to a connecting frame 503, and four second rollers 504 are distributed at both ends of the inner side of the connecting frame 503; the four second rollers 504 are symmetrically distributed at the four inner corner ends of the connecting frame 503, and the four second rollers 504 are rotatably connected to the connecting frame 503 through bearings; the cross-section of the connecting frame 503 is a "V"-shaped structure, and the inner side angle of the connecting frame 503 is an obtuse angle; the lifting assembly 3 and the pushing assembly 502 are cylinders, hydraulic cylinders or electric telescopic rods.

[0021] The driving assembly 4 includes a synchronous motor, and the output end of the synchronous motor is connected to a rotating shaft at one end of the first rotating roller 202 through a pulley group.

[0022] In this embodiment: by providing a support seat 2, a lifting assembly 3, a driving assembly 4 and a clamping mechanism 5, the end positions of the two stainless steel pipes can be quickly aligned and connected, and the lateral movement of the two stainless steel pipes can be restricted, so as to facilitate subsequent welding operations on the joints of the two stainless steel pipes; secondly, during welding, the two stainless steel pipes can be driven to rotate synchronously in a circumferential direction by driving the first roller 202, thereby facilitating the annular continuous welding of the joints of the two stainless steel pipes, greatly improving work efficiency; in addition, this solution is suitable for clamping stainless steel pipes of various sizes and specifications to meet user needs.

[0023] This solution is particularly applicable to clamping large-sized stainless steel pipes. Since the size specifications of stainless steel pipes are relatively large, during the actual welding operation, a gantry crane is required to lift two stainless steel pipes to two sets of support seats 2 respectively. Then, the lifting assembly 3 is used to adjust the position height of the support seats 2 so that the axes of the two stainless steel pipes are on the same horizontal line. During the butt joint of the stainless steel pipes, a gantry crane is also required to assist in the operation until the pipe orifices of the two stainless steel pipes are completely aligned and butted. Finally, the pushing assembly 502 drives the connecting frame 503 to move towards the butting position, and the two connecting frames 503 are used to clamp the two sides of the butting position of the stainless steel pipes. Workers can then weld the top of the butting position of the two stainless steel pipes. After the top is welded well, the driving assembly 4 drives the first roller 202 to rotate, driving the two stainless steel pipes to rotate synchronously, thereby facilitating circumferential continuous welding of the stainless steel pipes. This equipment is simple and fast to operate, greatly improving the welding efficiency.

[0024] The clamping mechanism 5 and the support seat 2 in this solution are applicable to clamping and placing various large-sized stainless steel pipes. There is no problem of welding dead angles for the circumferential welding of stainless steel pipes, and the welding position angle is good. It is convenient for both workers to carry out welding operations and for auxiliary automatic welding machines to carry out welding operations.

[0025] It should be noted that the driving assembly 4 in this solution is a self-locking motor, and the outer surface of the first roller 202 is a non-smooth surface. Therefore, during actual use, when the driving assembly 4 does not drive the first roller 202 to rotate, the two stainless steel pipes will not rotate either. Thus, there is no need to worry about the circumferential offset of the two steel pipes during the welding process.

[0026] The above-mentioned is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A clamping device for stainless steel pipe welding, characterized in that: The invention comprises a base (1), wherein two ends of the upper part of the base (1) are provided with support seats (2) for aligning and overlapping two stainless steel pipes, wherein the support seat (2) comprises a support frame (201), wherein two first rollers (202) are provided above the support frame (201), wherein the first rollers (202) are rotatably connected to the support frame (201) via bearings; a driving assembly (4) for driving the first rollers (202) and the support frame (201) to rotate relative to each other is installed on one side of the first rollers (202); a lifting assembly (3) is installed between the base (1) and the support seat (2); two groups of clamping mechanisms (5) are symmetrically arranged at two ends of the middle part of the base (1); the clamping mechanism (5) comprises a fixed frame (501), wherein a pushing assembly (502) is installed at the upper end of the fixed frame (501), wherein the output end of the pushing assembly (502) is fixedly connected to a connecting frame (503), and four second rollers (504) are distributed at two ends of the inner side of the connecting frame (503).

2. A stainless steel pipe welding clamping device according to claim 1, characterized in that: The driving assembly (4) comprises a synchronous motor, and the output end of the synchronous motor is connected to a rotating shaft at one end of the first rotating roller (202) through a belt pulley set.

3. A stainless steel pipe welding clamping device according to claim 2, characterized in that: The four second rotating rollers (504) are symmetrically distributed at the four inner corner ends of the connecting frame (503), and the four second rotating rollers (504) are rotatably connected to the connecting frame (503) via bearings.

4. A stainless steel pipe welding clamping device according to claim 3, characterized in that: The cross section of the connecting frame (503) is in a "V"-shaped structure, and the inner side surface angle of the connecting frame (503) is an obtuse angle.

5. A stainless steel pipe welding clamping device according to claim 4, characterized in that: The lifting component (3) and the pushing component (502) are cylinders, hydraulic cylinders or electric telescopic rods.

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