A fixing clamp for pipe welding

Abstract

The application relates to the technical field of pipeline processing, in particular to a fixing clamp for pipeline welding, which comprises a shell, a base fixedly connected to the outer side of the bottom end of the shell, a supporting mechanism connected to the shell, a rotating assembly connected to the supporting mechanism, wherein the supporting mechanism comprises a pipeline positioning assembly connected to the shell, a flange positioning assembly symmetrically arranged on the two sides of the shell and slidably connected to the base, a control assembly arranged on the inner side of the shell and connected to the pipeline positioning assembly, and a winding and unwinding assembly arranged between the control assembly and the flange positioning assembly. The supporting mechanism can stably support and fix the pipeline and the flange, and can realize the synchronous rotation of the pipeline and the flange, so that the comprehensiveness and effectiveness of welding are ensured.

Description

Technical Field

[0001] This invention relates to the field of pipe processing technology, specifically a fixing fixture for pipe welding. Background Technology

[0002] During construction, multiple layers of piping are often required within buildings to facilitate their use, especially for ventilation and water supply / drainage pipes. When laying piping in large buildings and production workshops, the sheer size of these structures necessitates longer pipes. In practice, multiple pipes are often connected end-to-end to form a single continuous pipeline. Flanges are welded to both ends of the pipe to connect and secure adjacent sections, enabling the laying of long-distance pipelines.

[0003] The welding method for flanges to pipes involves the operator manually fixing the flange to be welded to the end of the pipe, and then welding the pipe and flange together. However, the stability of the flange and pipe cannot be guaranteed during welding, making it inconvenient to weld and install the flange. Therefore, in view of the above situation, there is an urgent need to develop a fixing fixture for pipe welding to overcome the shortcomings in current practical applications. Summary of the Invention

[0004] The purpose of this invention is to provide a fixing fixture for pipe welding to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A pipe welding clamp includes: case; A base, which is fixedly connected to the outer side of the bottom end of the housing; A support mechanism, which is connected to the housing, is used to cooperate with the housing to position and fix the pipe and the flanges on both sides; A rotating assembly, connected to the support mechanism, is used to drive the support mechanism to achieve synchronous rotation of the pipe and flange after they are fixed. The supporting mechanism includes: A pipe positioning assembly, which is connected to the housing, is used to position and support the pipe. A flange positioning assembly is symmetrically arranged on both sides of the housing and slidably connected to the base to achieve the positioning and fixing of the flange. A control component is disposed inside the housing and connected to the pipe positioning component, for driving the pipe positioning component to fix the pipe. A retractable assembly is disposed between the control assembly and the flange positioning assembly, and is used to cooperate with the control assembly to drive the flange positioning assemblies on both sides to achieve the connection between the flange and the pipeline. The pipe positioning assembly includes a rotating cylinder, which is rotatably connected to the inner side of the housing and connected to the rotating assembly; The flange positioning assembly includes: a movable frame, which is disposed on the outside of the housing, slidably connected to the base, and connected to the retracting assembly; and a connecting cylinder, which is rotatably connected to the movable frame and connected to the rotating assembly. The control assembly includes: a control board disposed inside the housing and connected to the housing via a first telescopic member; and a transmission box disposed outside the control board, fixedly connected to the housing, and connected to the retraction assembly. The retraction / extension component includes: A connecting block is disposed between the housing and the movable frame, is slidably connected to the housing, and has a piston groove on its inner side; An adjusting tube, one end of which is fixedly connected to the transmission box, and the other end which leads to the inside of the piston groove, and a fourth piston is fixedly connected to the outside of which is used to cooperate with the lifting and lowering of the control plate to realize the lateral movement of the connecting block; A movable block is disposed between the movable frame and the connecting block, is fixedly connected to the movable frame, and is connected to the connecting block by a spring; The control component drives the pipe positioning component to fix the pipe. At the same time, the control component drives the retraction component to drive the flange positioning components on both sides, thereby simultaneously achieving the clamping and fixing of the pipe and the stable connection between the flange and the pipe.

[0006] Compared with the prior art, the beneficial effects of the present invention are: During operation, the pipe is placed inside the pipe positioning assembly, and the flange is fixed by the flange positioning assembly. The control assembly drives the pipe positioning assembly to fix the pipe. Simultaneously, the control assembly drives the retraction assembly to drive the flange positioning assemblies on both sides. The flange positioning assemblies move the flange closer to the housing, ensuring a stable connection between the flange and the pipe, thus guaranteeing the stability of the flange and pipe during welding. The rotation assembly can also simultaneously drive the pipe and flange to rotate, thereby achieving comprehensive welding. Compared to the prior art where operators manually fix the flange to be welded to the end of the pipe, which cannot guarantee the stability of the flange and pipe during welding and makes welding and installation of the flange difficult, this application, by setting up a support mechanism, not only can the pipe and flange be stably supported and fixed, but the synchronous rotation of the pipe and flange can also be achieved, ensuring the comprehensiveness and effectiveness of the welding. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of a fixing fixture for pipe welding.

[0008] Figure 2 This is a side view of a pipe welding fixture.

[0009] Figure 3 for Figure 1 A magnified structural diagram of point A in the middle.

[0010] Figure 4 This is a schematic diagram of the take-up and take-down assembly in a pipe welding fixture.

[0011] In the diagram: 1-shell, 2-rotating cylinder, 3-cavity, 4-piston tube, 5-clamping plate, 6-first piston component, 7-control panel, 8-first telescopic component, 9-transmission box, 10-control tube, 11-second piston component, 12-connecting block, 13-moving block, 14-moving frame, 15-connecting cylinder, 16-pressure plate, 17-second telescopic component, 18-control box, 19-third piston component, 20-connecting rod, 21-air guide pipe, 22-sleeve rod, 23-fixed frame, 24-driven rod, 25-driving component, 26-first transmission component, 27-second transmission component, 28-air guide groove, 29-vent pipe, 30-piston groove, 31-adjusting pipe, 32-fourth piston component. Detailed Implementation

[0012] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0013] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0014] Please see Figure 1In one embodiment of the present invention, a pipe welding fixing clamp includes: a housing 1; a base, the base being fixedly connected to the outer side of the bottom end of the housing 1; a support mechanism, the support mechanism being connected to the housing 1, used to cooperate with the housing 1 to position and fix the pipe and flanges on both sides; a rotating assembly, the rotating assembly being connected to the support mechanism, used to drive the support mechanism to achieve synchronous rotation of the pipe and flanges after they are fixed; wherein, the support mechanism includes: a pipe positioning assembly, the pipe positioning assembly being connected to the housing 1, used to position and support the pipe; a flange positioning assembly, the flange positioning assembly being symmetrically arranged on both sides of the housing 1 and slidably connected to the base, used to position and fix the flanges; a control assembly, the control assembly being disposed inside the housing 1 and connected to the pipe positioning assembly, used to drive the pipe positioning assembly to fix the pipe; and a retracting assembly, the retracting assembly being disposed between the control assembly and the flange positioning assembly, used to cooperate with the control assembly to drive the flange positioning assemblies on both sides to connect the flanges to the pipe.

[0015] In this embodiment, during device operation, the pipe is placed inside the pipe positioning assembly, and the flange is fixed by the flange positioning assembly. The control assembly drives the pipe positioning assembly to fix the pipe. Simultaneously, the control assembly can drive the retraction assembly to drive the flange positioning assemblies on both sides. The flange positioning assembly drives the flange to move closer to the housing 1, and the flange and pipe are stably connected, ensuring the stability of the flange and pipe during welding. The rotation assembly can also drive the pipe and flange to rotate simultaneously, thereby achieving comprehensive welding. Compared with the prior art where the operator fixes the flange to be welded to the end of the pipe by hand, the stability of the flange and pipe cannot be guaranteed during welding, making it inconvenient to weld and install the flange, this application, by setting a support mechanism, can not only stably support and fix the pipe and flange, but also achieve synchronous rotation of the pipe and flange, ensuring the comprehensiveness and effectiveness of welding.

[0016] In one embodiment of the present invention, please refer to Figure 1 , Figure 2 and Figure 3The pipe positioning assembly includes: a rotating cylinder 2, which is rotatably connected to the inner side of the housing 1 and connected to the rotating assembly; a cavity 3, which is disposed on the inner side of the cylinder wall of the rotating cylinder 2; a piston tube 4, which is arranged around the inner side of the rotating cylinder 2 and connected to the cavity 3; a clamping plate 5, which is disposed on the outer side of the piston tube 4 and connected to the piston tube 4 through a first piston member 6; an air guide groove 28, which is disposed on the inner side of the housing wall of the housing 1, connected to the control assembly, and has an annular opening on the side in contact with the rotating cylinder 2; and a vent pipe 29, which is disposed on the inner side of the annular opening, fixedly connected to the rotating cylinder 2, and connected to the air guide groove 28, for guiding airflow.

[0017] In this embodiment, the piston tubes 4 are distributed in an annular shape at equal intervals inside the rotating cylinder 2. The first piston member 6 is slidably connected to the piston tubes 4 and fixedly connected to the clamping plate 5. In addition, a sealing ring is provided on the shell wall of the rotating cylinder 2 on the side in contact with the housing 1. The control component drives the air to flow inside the air guide groove 28. The air enters the cavity 3 along the vent pipe 29, realizing the movement of the first piston member 6 inside the piston tube 4. The first piston member 6 drives the clamping plate 5 to move, and the clamping plate 5 completes the clamping and fixing of the pipe. The rotating component can also realize the rotation of the rotating cylinder 2, thereby realizing the rotation of the pipe, and performing comprehensive welding on the pipe and flange.

[0018] In one embodiment of the present invention, the flange positioning assembly includes: a movable frame 14, which is disposed on the outside of the housing 1, slidably connected to the base, and connected to the retracting assembly; a connecting cylinder 15, which is rotatably connected to the movable frame 14 and connected to the rotating assembly; and a pressure plate 16, which is symmetrically disposed on the inside of the connecting cylinder 15 and connected to the connecting cylinder 15 through a second telescopic member 17, for limiting and fixing the flange.

[0019] In this embodiment, the movable frame 14 is symmetrically arranged at the top of both ends of the base. The second telescopic member 17 is an electric telescopic rod. The second telescopic member 17 drives the pressure plate 16 to move. The pressure plate 16 completes the clamping and fixing of the flange. By setting the flange positioning component, not only can the flange be stably fixed, but it can also cooperate with the extension and retraction component to achieve a stable connection between the flange and the pipeline.

[0020] In one embodiment of the present invention, the control component includes: a control plate 7 disposed inside the housing 1 and connected to the housing 1 via a first telescopic member 8; a transmission component disposed between the control plate 7 and the air guide groove 28, used to cooperate with the lifting and lowering of the control plate 7 to realize the flow of air inside the air guide groove 28; a transmission box 9 disposed outside the control plate 7, fixedly connected to the housing 1, and connected to the take-up and release component; and a control pipe 10 disposed between the transmission box 9 and the control plate 7, fixedly connected to the transmission box 9, and having a second piston member 11 slidably connected to the control plate 7 on its inner side, used to cooperate with the lifting and lowering of the control plate 7 to drive the take-up and release component.

[0021] In this embodiment, a first telescopic member 8 is fixedly connected between the bottom end of the control plate 7 and the housing 1. The first telescopic member 8 is an electric telescopic rod. The transmission box 9 has symmetrically arranged connecting grooves on its inner side. The connecting grooves on both sides are respectively connected to the retracting and extending components on both sides. A plurality of control pipes 10 are fixedly connected to the top wall of the transmission box 9. The second piston member 11 is slidably connected to the control pipes 10 and fixedly connected to the control plate 7. By setting the control components, the first telescopic member 8 realizes the lifting and lowering of the control plate 7. The control plate 7 can not only clamp and fix the pipe through the pipe positioning component of the transmission component, but also drive the retracting and extending components to realize a stable connection between the flange and the pipe, ensuring the effectiveness of the welding.

[0022] In one embodiment of the present invention, the transmission assembly includes: a control box 18, which is symmetrically disposed on the outer side of the top of the control plate 7 and fixedly connected to the housing 1; a third piston 19, which is slidably connected to the control box 18 and connected to the control plate 7 via a connecting rod 20; and an air guide pipe 21, which is disposed between the control box 18 and the air guide groove 28 for guiding the air inside the control box 18.

[0023] In this embodiment, the third piston 19 is slidably connected to the control box 18 and rotatably connected to the connecting rod 20. The other end of the connecting rod 20 is rotatably connected to the control plate 7. One end of the air guide pipe 21 is fixedly connected to the control box 18, and the other end is connected to the air guide groove 28. During the lifting and lowering process of the control plate 7, the third piston 19 moves inside the control box 18 through the connecting rod 20. The air inside the control box 18 enters the air guide groove 28 along the air guide pipe 21, thereby driving the pipeline positioning component.

[0024] In one embodiment of the present invention, please refer to Figure 1 and Figure 4The retraction assembly includes: a connecting block 12, which is disposed between the housing 1 and the movable frame 14, slidably connected to the housing 1, and has a piston groove 30 on its inner side; an adjusting pipe 31, one end of which is fixedly connected to the transmission box 9, and the other end of which leads to the inner side of the piston groove 30, and a fourth piston 32 is fixedly connected to its outer side for cooperating with the lifting and lowering of the control plate 7 to realize the lateral movement of the connecting block 12; and a movable block 13, which is disposed between the movable frame 14 and the connecting block 12, fixedly connected to the movable frame 14, and connected to the movable block 13 by a spring.

[0025] In this embodiment, when the control plate 7 drives the second piston 11 to move inside the control tube 10, the air inside the transmission box 9 enters the piston groove 30 along the regulating tube 31, and works with the fourth piston 32 to move the connecting block 12. The connecting block 12 works with the movable block 13 to drive the movable frame 14 to move, thereby connecting the flange and the pipe. By setting the retraction assembly, a stable connection between the flange and the pipe can be ensured, thereby ensuring the accuracy and stability of the flange and the pipe during welding.

[0026] In one embodiment of the present invention, the rotating assembly includes: a fixed frame 23, which is fixedly connected to the outer side of the top end of the housing 1; a driving member 25, which is fixedly connected to the housing 1; a driven rod 24, which is rotatably connected to the fixed frame 23, connected to the output end of the driving member 25 via a bevel gear, and connected to the rotating cylinder 2 via a first transmission member 26; and a sleeve rod 22, which is sleeved on the outer side of the driven rod 24, rotatably connected to the movable frame 14, connected to the driven rod 24 via a limiting member, and connected to the connecting cylinder 15 via a second transmission member 27, for cooperating with the driven rod 24 to realize the rotation of the connecting cylinder 15.

[0027] In this embodiment, the driving component 25 is fixedly connected to the outer side of the top of the housing 1. The driving component 25 is a drive motor. The output end of the driving component 25 is connected to the driven rod 24 through bevel gear meshing. The first transmission component 26 includes a first pulley fixedly connected to the driven rod 24 and the outer side of the rotating drum 2. The first pulleys are connected to each other through a first belt. The limiting component includes a limiting block fixedly connected to the outer side of the driven rod 24 and a limiting groove provided on the inner wall of the sleeve rod 22. The limiting block and the limiting groove are slidably connected. The second transmission component 27 includes a second pulley fixedly connected to the outer side of the sleeve rod 22 and the connecting cylinder 15. The second pulleys are connected to each other through a second belt. By setting the rotating assembly, the driving component 25 drives the driven rod 24 to rotate. The driven rod 24 drives the sleeve rod 22 to rotate synchronously through the limiting block. The sleeve rod 22 drives the connecting cylinder 15 to rotate. The driven rod 24 drives the rotating drum 2 to rotate, realizing the synchronous rotation of the pipe and the flange, ensuring the completeness of the welding.

[0028] This pipe welding fixture, through its support mechanism, not only provides stable support and fixation for the pipe and flange but also enables synchronous rotation of the pipe and flange, ensuring the comprehensiveness and effectiveness of the welding. By incorporating a control assembly, the first telescopic component 8 raises and lowers the control plate 7. The control plate 7 not only clamps and fixes the pipe through the pipe positioning component of the transmission assembly but also drives the retraction assembly to achieve a stable connection between the flange and the pipe, ensuring the effectiveness of the welding. The retraction assembly further ensures the accuracy and stability of the flange and pipe during welding. A rotation assembly, through which the driving component 25 rotates the driven rod 24, which in turn drives the sleeve rod 22 to rotate synchronously via a limit block. The sleeve rod 22 then rotates the connecting cylinder 15, and the driven rod 24 rotates the rotating cylinder 2, achieving synchronous rotation of the pipe and flange and ensuring the comprehensiveness of the welding.

[0029] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these should also be considered within the scope of protection of the present invention. These will not affect the effectiveness of the implementation of the present invention or the practicality of the patent.

Claims

1. A fixing clamp for pipe welding, characterized in that, include: case; A base, which is fixedly connected to the outer side of the bottom end of the housing; A support mechanism, which is connected to the housing, is used to cooperate with the housing to position and fix the pipe and the flanges on both sides; A rotating assembly, connected to the support mechanism, is used to drive the support mechanism to achieve synchronous rotation of the pipe and flange after they are fixed. The supporting mechanism includes: A pipe positioning assembly, which is connected to the housing, is used to position and support the pipe. A flange positioning assembly is symmetrically arranged on both sides of the housing and slidably connected to the base to achieve the positioning and fixing of the flange. A control component is disposed inside the housing and connected to the pipe positioning component, for driving the pipe positioning component to fix the pipe. A retractable assembly is disposed between the control assembly and the flange positioning assembly, and is used to cooperate with the control assembly to drive the flange positioning assemblies on both sides to achieve the connection between the flange and the pipeline. The pipe positioning assembly includes a rotating cylinder, which is rotatably connected to the inner side of the housing and connected to the rotating assembly; The flange positioning assembly includes: a movable frame, which is disposed on the outside of the housing, slidably connected to the base, and connected to the retracting assembly; and a connecting cylinder, which is rotatably connected to the movable frame and connected to the rotating assembly. The control assembly includes: a control board disposed inside the housing and connected to the housing via a first telescopic member; and a transmission box disposed outside the control board, fixedly connected to the housing, and connected to the retraction assembly. The retraction / extension component includes: A connecting block is disposed between the housing and the movable frame, is slidably connected to the housing, and has a piston groove on its inner side; An adjusting tube, one end of which is fixedly connected to the transmission box, and the other end which leads to the inside of the piston groove, and a fourth piston is fixedly connected to the outside of which it is used to cooperate with the lifting and lowering of the control plate to realize the lateral movement of the connecting block; A movable block is disposed between the movable frame and the connecting block, is fixedly connected to the movable frame, and is connected to the connecting block by a spring; The control component drives the pipe positioning component to fix the pipe. At the same time, the control component drives the retraction component to drive the flange positioning components on both sides, thereby simultaneously achieving the clamping and fixing of the pipe and the stable connection between the flange and the pipe.

2. The pipe welding fixing clamp according to claim 1, characterized in that, The pipeline positioning assembly also includes: A cavity is provided on the inner side of the rotating cylinder wall; A piston tube is arranged around the inner side of the rotating cylinder and connected to the cavity; A clamping plate is disposed on the outside of the piston tube and connected to the piston tube via a first piston component; An air guide groove is provided on the inner side of the shell wall of the housing, connected to the control component, and has an annular opening on the side that contacts the rotating cylinder; A vent pipe is disposed inside the annular opening, fixedly connected to the rotating cylinder, and connected to the air guide groove to guide the airflow.

3. The pipe welding fixing clamp according to claim 2, characterized in that, The flange positioning assembly also includes: A pressure plate is symmetrically arranged inside the connecting cylinder and connected to the connecting cylinder through a second telescopic member, used to limit and fix the flange.

4. The pipe welding fixing fixture according to claim 3, characterized in that, The control component also includes: A transmission assembly is disposed between the control board and the air guide groove, and is used to cooperate with the lifting and lowering of the control board to realize the flow of air inside the air guide groove; A control tube is disposed between the transmission box and the control board, and is fixedly connected to the transmission box. A second piston component, which is fixedly connected to the control board, is slidably connected to the inner side of the control tube and is used to drive the retraction and extension components in conjunction with the lifting and lowering of the control board.

5. The pipe welding fixing fixture according to claim 4, characterized in that, The transmission assembly includes: A control box is symmetrically arranged on the outer top of the control panel and fixedly connected to the housing. The third piston component is slidably connected to the control box and connected to the control board via a connecting rod; An air guide pipe is disposed between the control box and the air guide groove to guide the air inside the control box.

6. The pipe welding fixing fixture according to claim 1, characterized in that, The rotating component includes: The fixing frame is fixedly connected to the outer side of the top end of the housing; A driving component, which is fixedly connected to the housing; The driven rod is rotatably connected to the fixed frame, connected to the output end of the drive component via a bevel gear, and connected to the rotating drum via a first transmission component; A sleeve rod is sleeved on the outside of the driven rod and rotatably connected to the movable frame. It is connected to the driven rod through a limiting member and to the connecting cylinder through a second transmission member, and is used to cooperate with the driven rod to realize the rotation of the connecting cylinder.

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