Pipeline welding device

Abstract

The utility model discloses a pipeline welding device, which relates to the technical field of pipeline welding; the utility model comprises a workbench, a symmetrically distributed bottom plate is fixedly installed on the top of the workbench, a symmetrically distributed fixing ring is fixedly installed on the top of the bottom plate, a fixing pipe is fixedly installed inside the two fixing rings, two double-headed screws with opposite threads at both ends are rotatably penetrated through the opposite sides of the inner wall of the workbench, the outer threads of the double-headed screws are sleeved with symmetrically distributed moving plates, the two moving plates both penetrate the workbench and the bottom plate, fixing rods are fixedly installed on the opposite sides of the two moving plates, the two fixing rods both penetrate the fixing pipe, the two fixing rods are fixedly installed with clamping rings at one end close to the fixing pipe, and two groups of symmetrically distributed supporting rings are fixedly installed on the top of the workbench. The application avoids the need to disassemble the pipeline again, reduces the time required for welding, and speeds up welding efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline welding, in particular to a pipeline welding device. Background Art

[0002] Pipelines are special equipment used to transport liquid media and are widely used in industries such as petroleum, chemical, electric power, and construction. With the development of my country's national economy, the demand for pipelines continues to increase, and the requirements for construction quality are also getting higher and higher. Among them, metal pipeline welding is an extremely important part of pipeline production and installation:

[0003] The pipeline welding device in the prior art usually clamps and fixes two pipelines separately to improve the stability of the welding. However, the workers need to weld a circle on the interface of the two pipelines, so that the workers need to disassemble the pipelines and then fix them again, which is troublesome and wastes a lot of time. Utility Model Content

[0004] In order to solve the problem that pipelines need to be re-fixed, the utility model aims to provide a pipeline welding device.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a pipeline welding device, including a workbench, a symmetrically distributed bottom plate is fixedly installed on the top of the workbench, a symmetrically distributed fixing ring is fixedly installed on the top of the bottom plate, a fixing pipe is fixedly installed inside the two fixing rings, two double-headed screws with opposite threads at both ends are rotated and penetrated through the opposite sides of the inner wall of the workbench, and the outer threads of the double-headed screws are provided with symmetrically distributed moving plates, the two moving plates both penetrate the workbench and the bottom plate, the opposite sides of the two moving plates are fixedly installed with fixing rods, the two fixing rods both penetrate the fixing pipe, and the ends of the two fixing rods close to the fixing pipe are fixedly installed with clamping rings, two groups of symmetrically distributed support rings are fixedly installed on the top of the workbench, and movable rings are movably provided inside the two groups of support rings, a large gear is fixedly provided on the outside of the movable ring, a small gear is meshed and connected on the outside of the large gear, a connecting rod is fixedly penetrated in the middle of the small gear, a ring-shaped spring is fixedly installed inside the movable ring, and a positioning block is fixedly installed on the other end of the spring.

[0006] Preferably, protective pads are detachably provided inside the two clamping rings, a clamping block is fixedly installed on one side of the protective pad close to the clamping ring, a clamping groove is provided on one side of the clamping ring close to the protective pad, and the clamping block is movably clamped in the clamping groove.

[0007] Compared with the prior art, the beneficial effects of the utility model are:

[0008] 1. This application avoids the need to disassemble the pipeline again, reduces the time required for welding, and speeds up welding efficiency;

[0009] 2. The present application provides a protective pad to avoid wear on the surface of the pipe, and the protective pad can be disassembled and replaced conveniently through the provided clamping blocks and slots. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0012] Figure 2 It is a schematic diagram of the structure of the clamping ring in the utility model.

[0013] Figure 3 It is a structural schematic diagram of the movable ring in the utility model.

[0014] In the figure: 1. workbench; 11. bottom plate; 12. fixed ring; 13. fixed tube; 14. double-headed screw; 15. movable plate; 16. fixed rod; 17. clamping ring; 18. support ring; 19. movable ring; 191. large gear; 192. small gear; 193. connecting rod; 194. spring; 195. positioning block; 2. protective pad; 21. block; 22. slot; 3. limit rod; 4. belt; 5. first motor; 51. second motor; 6. fixed plate; 7. empty slot; 8. stabilizer bar. DETAILED DESCRIPTION

[0015] 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.

[0016] Example: Figure 1-3As shown, the utility model provides a pipeline welding device, including a workbench 1, a symmetrically distributed bottom plate 11 is fixedly installed on the top of the workbench 1, a symmetrically distributed fixing ring 12 is fixedly installed on the top of the bottom plate 11, a fixing pipe 13 is fixedly installed inside the two fixing rings 12, two double-headed screws 14 with opposite threads at both ends are rotatably penetrated on the opposite sides of the inner wall of the workbench 1, and the outer threads of the double-headed screws 14 are sleeved with symmetrically distributed moving plates 15, the two moving plates 15 both penetrate the workbench 1 and the bottom plate 11, and the opposite sides of the two moving plates 15 are fixedly installed with fixing rods 16, and the two fixing rings 12 are fixedly installed with fixing pipes 13. Each fixing rod 16 passes through the fixing tube 13, and a clamping ring 17 is fixedly installed at one end of the two fixing rods 16 close to the fixing tube 13. Two groups of symmetrically distributed supporting rings 18 are fixedly installed on the top of the workbench 1, and movable rings 19 are movably provided inside the two groups of supporting rings 18. A large gear 191 is fixedly provided on the outer side of the movable ring 19, and a small gear 192 is meshed and connected to the outer side of the large gear 191. A connecting rod 193 is fixedly passed through the middle of the small gear 192, and a ring-shaped spring 194 is fixedly installed inside the movable ring 19, and a positioning block 195 is fixedly installed on the other end of the spring 194.

[0017] The two clamping rings 17 are both provided with removable protective pads 2 inside. A clamping block 21 is fixedly installed on one side of the protective pad 2 close to the clamping ring 17 . A clamping groove 22 is provided on one side of the clamping ring 17 close to the protective pad 2 . The clamping block 21 is movably clamped in the clamping groove 22 .

[0018] Symmetrically distributed limiting rods 3 are fixedly installed on opposite sides of the inner wall of the workbench 1. The limiting rods 3 penetrate the movable plate 15. The stability of the movable plate 15 is improved by setting the limiting rods 3, so that the pipeline is better fixed.

[0019] One end of the two double-headed screw rods 14 is connected through a belt 4. By setting the belt 4, the two double-headed screw rods 14 can rotate. It should be noted that the belt 4 can be an internal tooth belt to reduce hysteresis.

[0020] A first motor 5 is coaxially fixedly installed on one end of the double-headed screw rods 14 close to the belt 4, and a second motor 51 is coaxially fixedly installed on one end of the connecting rod 193. By setting the first motor 5 and the second motor 51, it is convenient to drive the double-headed screw rod 14 and the connecting rod 193 to rotate.

[0021] The top of the workbench 1 is fixedly installed with symmetrically distributed fixing plates 6, and the connecting rod 193 rotates and passes through the two fixing plates 6. By setting the fixing plates 6, the connecting rod 193 can be supported to improve its stability.

[0022] A plurality of slots 7 are provided at the top of the workbench 1 and the top of the bottom plate 11, and the movable plate 15 passes through the slots 7. The slots 7 are provided to prevent the movable plate 15 from being blocked when moving, and to limit its position to prevent it from being offset when moving.

[0023] The bottom end of the support ring 18 is fixedly mounted with symmetrically distributed stabilizing rods 8, and the stabilizing rods 8 are fixedly connected to the workbench 1. By providing the stabilizing rods 8, the support ring 18 can be supported to improve its stability.

[0024] Working principle: In actual use, the two pipes are passed through the two fixed pipes 13 respectively. At this time, the positioning block 195 is squeezed in the direction of the movable ring 19 to compress the spring 194. Then the pipe is passed through the movable ring 19. At this time, the spring 194 releases its elastic force and drives the positioning block 195 to move in the direction of the pipe, so that the positioning block 195 initially fixes the pipe. Then, the double-headed screw 14 is driven to rotate, driving the two moving plates 15 to move toward each other. The two moving plates 15 respectively drive the fixed rod 16 and the clamping ring 17 to move, so that the clamping ring 17 fixes the pipe. Then the staff fixes the two pipes. When the top of the pipe is welded, the double-headed screw 14 is driven in the reverse direction to separate the clamping ring 17 from the pipe, and then the connecting rod 193 is driven to rotate, driving the small gear 192 to rotate. The small gear 192 drives the movable ring 19 to rotate through the large gear 191. The movable ring 19 drives the pipe to rotate through the spring 194 and the positioning block 195, so that the bottom of the pipe comes to a position convenient for the staff to weld. The protective pad 2 is provided to avoid wear on the surface of the pipe. The blocking block 21 and the slot 22 are provided to enable the protective pad 2 to be disassembled for easy replacement.

[0025] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A pipeline welding device, comprising a workbench (1), characterized in that: A symmetrically distributed bottom plate (11) is fixedly installed on the top of the workbench (1), a symmetrically distributed fixing ring (12) is fixedly installed on the top of the bottom plate (11), a fixing tube (13) is fixedly installed inside the two fixing rings (12), two double-headed screws (14) with opposite threads at both ends are rotatably penetrated on opposite sides of the inner wall of the workbench (1), and the outer threads of the double-headed screws (14) are sleeved with symmetrically distributed moving plates (15), both of which penetrate the workbench (1) and the bottom plate (11), and fixing rods (16) are fixedly installed on opposite sides of the two moving plates (15), and both of the two fixing rods (16) penetrate the fixing tube (13). ), a clamping ring (17) is fixedly installed at one end of the two fixing rods (16) close to the fixing tube (13), two groups of symmetrically distributed supporting rings (18) are fixedly installed on the top of the workbench (1), and movable rings (19) are movably installed inside the two groups of supporting rings (18), a large gear (191) is fixedly installed on the outer side of the movable ring (19), a small gear (192) is meshedly connected to the outer side of the large gear (191), a connecting rod (193) is fixedly passed through the middle of the small gear (192), a ring-shaped spring (194) is fixedly installed inside the movable ring (19), and a positioning block (195) is fixedly installed on the other end of the spring (194).

2. A pipeline welding device as claimed in claim 1, characterized in that: The two clamping rings (17) are both provided with detachable protective pads (2) inside, a clamping block (21) is fixedly mounted on one side of the protective pad (2) close to the clamping ring (17), a clamping groove (22) is provided on one side of the clamping ring (17) close to the protective pad (2), and the clamping block (21) is movably clamped in the clamping groove (22).

3. A pipeline welding device as claimed in claim 1, characterized in that: Symmetrically distributed limiting rods (3) are fixedly mounted on opposite sides of the inner wall of the workbench (1), and the limiting rods (3) penetrate the movable plate (15).

4. A pipeline welding device as claimed in claim 1, characterized in that: One end of the two double-headed screws (14) is connected by a belt (4).

5. A pipeline welding device as claimed in claim 4, characterized in that: A first motor (5) is coaxially fixedly mounted on one end of one of the double-headed screw rods (14) close to the belt (4), and a second motor (51) is coaxially fixedly mounted on one end of the connecting rod (193).

6. A pipeline welding device as claimed in claim 3, characterized in that: The top of the workbench (1) is fixedly mounted with symmetrically distributed fixing plates (6), and the connecting rod (193) rotates and penetrates the two fixing plates (6).

7. A pipeline welding device as claimed in claim 6, characterized in that: A plurality of empty slots (7) are provided at the top of the workbench (1) and the top of the bottom plate (11), and the movable plate (15) passes through the empty slots (7).

8. A pipeline welding device as claimed in claim 1, characterized in that: The bottom end of the support ring (18) is fixedly mounted with symmetrically distributed stabilizing rods (8), and the stabilizing rods (8) are fixedly connected to the workbench (1).

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