Automatic welding device for petroleum pipeline

Abstract

The utility model discloses an automatic welding device for petroleum pipelines, which relates to the technical field of welding and comprises a hollow base, two groups of symmetrically arranged first hydraulic cylinders are fixedly mounted at the top of the hollow base, and a same supporting seat is fixedly mounted at the telescopic ends of the two first hydraulic cylinders in the same group. And a second hydraulic cylinder is fixedly mounted at the inner bottom of the hollow base, a lifting plate is fixedly mounted at the top of the second hydraulic cylinder, and clamping assemblies are arranged on the two sides of the two supporting seats correspondingly. Automatic clamping of the pipeline and automatic releasing of clamping limiting can be achieved through vertical movement of the lifting plate, operation is easy and convenient, compared with the prior art, manual frequent operation is not needed, working efficiency is improved, automatic air blowing can be conducted on a welding part, and therefore cooling efficiency of the welding part is improved, and production cost is reduced. And automatic clamping of pipelines of different sizes can be achieved, and the use requirements under different conditions are met.

Description

Technical Field

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

[0002] The oil pipeline is composed of oil pipes and their accessories, and is equipped with corresponding oil pump units according to the needs of the process flow. It is designed and installed into a complete pipeline system. Its main function is to transport crude oil and petroleum products. It has the advantages of large oil transportation volume, good airtightness, low cost and high safety factor. At present, the commonly used oil pipeline pipes are generally steel pipes, and the oil pipelines are connected by welding.

[0003] To this end, a Chinese patent with announcement number CN212793793U proposes a petroleum pipeline welding device that can clamp and fix petroleum pipelines of different diameters, realize automatic welding of girth welds, and ensure the welding quality of the girth welds. However, when using the device, frequent manual operations are required to fix the pipeline and subsequently release the fixation. The operation is cumbersome and the work efficiency is low. After the pipeline welding is completed, the temperature of the welding part is high, which is inconvenient for subsequent processing or transportation and inconvenient to use. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides an automatic welding device for oil pipelines.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The automatic welding device for oil pipelines includes a hollow base, on the top of which two groups of two symmetrically arranged first hydraulic cylinders are fixedly installed, on the telescopic ends of the two first hydraulic cylinders in the same group a same support base is fixedly installed, on the inner bottom of the hollow base a second hydraulic cylinder is fixedly installed, on the top of the second hydraulic cylinder a lifting plate is fixedly installed, clamping assemblies are arranged on both sides of the two support seats, and on the hollow base two groups of cooling assemblies are arranged.

[0007] Preferably, the clamping assembly includes a fixed block fixedly mounted on the top of the hollow base, and two round rods are provided on the fixed block for sliding connection therewith, and the two round rods are fixedly mounted with a same first matching block at one end away from the support seat, and the two round rods are fixedly mounted with a same moving block at one end close to the support seat, and a tension spring is fixedly connected between the moving block and the fixed block, and two telescopic rods are fixedly mounted on a side wall of the moving block close to the support seat, and the telescopic ends of the two telescopic rods are fixedly connected to the same stop block, the moving block is provided with an adjusting screw threadedly connected thereto, and one end of the adjusting screw close to the stop block is rotatably connected to the stop block, and the hollow base is provided with a second matching block for sliding connection therewith, and one end of the second matching block located in the hollow base is fixedly mounted on the top of the lifting plate.

[0008] Preferably, the cooling assembly includes a cylinder fixedly mounted on the inner bottom of the hollow base, a piston slidably connected to the inner wall of the cylinder is provided in the cylinder, a connecting rod is fixedly connected between the piston and the lifting plate, an air storage box is provided at the inner bottom of the hollow base, a first connecting tube and a second connecting tube connected to the interior of the cylinder are provided on the cylinder, ends of the first connecting tube and the second connecting tube connected to the cylinder are both located below the piston, an end of the second connecting tube away from the cylinder is connected to the air storage box, and an air outlet is provided at the end of the first connecting tube away from the cylinder.

[0009] Preferably, a knob is provided at one end of the adjusting screw away from the stop block.

[0010] Preferably, the cross-sections of the first matching block and the second matching block are both in the shape of a right-angled trapezoid.

[0011] Preferably, both the first connecting pipe and the second connecting pipe are provided with a one-way valve.

[0012] Beneficial effects of the utility model:

[0013] By setting up the clamping assembly, the automatic clamping of the pipeline and the automatic release of the clamping limit can be achieved through the up and down movement of the lifting plate. The operation is simple and convenient. Compared with the existing technology, frequent manual operations are not required, which improves work efficiency.

[0014] By setting up a cooling component, the welding part can be automatically blown by the up and down movement of the lifting plate, thereby improving the cooling efficiency of the welding part, avoiding burns caused by excessive temperature of the welding part, and facilitating subsequent processing or transportation.

[0015] By setting the adjusting screw and the first hydraulic cylinder, the initial positions of the stop block and the support seat can be adjusted. Through the cooperation between the two, automatic clamping of pipes of different sizes can be achieved, meeting the use requirements in different situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural diagram of the automatic welding device for oil pipelines proposed by the utility model from a top view;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the automatic welding device for oil pipelines proposed by the utility model when viewed from above;

[0018] Figure 3 It is a schematic diagram of the planar structure of the cooling component of the utility model.

[0019] In the figure: 1. hollow base; 2. first matching block; 3. fixed block; 4. tension spring; 5. moving block; 6. stop block; 7. telescopic rod; 8. adjusting screw; 9. air outlet; 10. first connecting pipe; 11. second matching block; 12. first hydraulic cylinder; 13. supporting seat; 14. cylinder; 15. lifting plate; 16. piston; 17. second connecting pipe; 18. air storage box; 19. second hydraulic cylinder; 20. connecting rod; 21. round rod. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-Figure 3The automatic welding device for oil pipelines comprises a hollow base 1, two groups of symmetrically arranged first hydraulic cylinders 12 are fixedly installed on the top of the hollow base 1, and the same support base 13 is fixedly installed on the telescopic ends of the two first hydraulic cylinders 12 in the same group, a second hydraulic cylinder 19 is fixedly installed on the inner bottom of the hollow base 1, and a lifting plate 15 is fixedly installed on the top of the second hydraulic cylinder 19. Clamping components are arranged on both sides of the two support bases 13, and the clamping components include a fixed block 3 fixedly installed on the top of the hollow base 1, and two round rods 21 slidably connected thereto are penetrated on the fixed block 3, and the same first matching block 2 is fixedly installed on one end of the two round rods 21 away from the support base 13, and the two round rods 21 are close to the support base 1. The same moving block 5 is fixedly installed at one end of 3, and a tension spring 4 is fixedly connected between the moving block 5 and the fixed block 3. Two telescopic rods 7 are fixedly installed on the side wall of the moving block 5 close to the support seat 13, and the same stop block 6 is fixedly connected to the telescopic ends of the two telescopic rods 7. An adjusting screw 8 threadedly connected to it is provided through the moving block 5, and the end of the adjusting screw 8 close to the stop block 6 is rotatably connected to the stop block 6. A second matching block 11 slidably connected to it is provided through the hollow base 1, and one end of the second matching block 11 located in the hollow base 1 is fixedly installed on the top of the lifting plate 15, and a knob is provided on the end of the adjusting screw 8 away from the stop block 6. The cross-sections of the first matching block 2 and the second matching block 11 are both right-angled trapezoidal shapes;

[0022] Two groups of cooling components are arranged on the hollow base 1, and the cooling components include a cylinder 14 fixedly installed on the inner bottom of the hollow base 1, a piston 16 slidably connected to the inner wall of the cylinder 14 is arranged inside the cylinder 14, a connecting rod 20 is fixedly connected between the piston 16 and the lifting plate 15, an air storage box 18 is arranged at the inner bottom of the hollow base 1, a first connecting pipe 10 and a second connecting pipe 17 connected to the interior of the cylinder 14 are arranged on the cylinder 14, one end of the first connecting pipe 10 and the second connecting pipe 17 connected to the cylinder 14 are both located below the piston 16, and one end of the second connecting pipe 17 away from the cylinder 14 is connected to the air storage box 18, an end of the first connecting pipe 10 away from the cylinder 14 is provided with an air outlet 9, and one-way valves are provided in the first connecting pipe 10 and the second connecting pipe 17.

[0023] When the utility model is used, the two pipes to be welded are placed on the two support seats 13 respectively, and then the second hydraulic cylinder 19 is started to move the lifting plate 15 upward, and the lifting plate 15 causes the four second matching blocks 11 to move upward synchronously, and the second matching block 11 moves upward to contact with each other and through the cooperation between the inclined surface on the second matching block 11 and the inclined surface on the first matching block 2, the moving block 5 and the stop block 6 can be synchronously moved in the direction close to the support seat 13, the tension spring 4 is stretched, and the stop block 6 can be moved in the direction of the support seat 13 to clamp and fix the pipe on the support seat 13, so as to realize automatic position limiting of the pipe, and then automatic welding can be carried out by the welding device (not shown and it is the prior art, no need to repeat it), and the second hydraulic cylinder 19 moves downward, so that the second matching block 11 is no longer in contact with the first matching block 2, and the tension generated by the stretched tension spring 4 can make the stop block 6 move in the direction away from the support seat 13, so that the pipe limit can be automatically released without manual operation;

[0024] The upward movement of the lifting plate 15 also drives the connecting rod 20 and the piston 16 to move upward, thereby generating a suction effect. The cold air in the air storage box 18 is sucked into the cylinder 14 through the second connecting pipe 17. When the lifting plate 15 moves downward, the piston 16 moves downward accordingly, thereby generating an extrusion effect, so that the cold air in the cylinder 14 is blown out from the air outlet 9 through the first connecting pipe 10 and blown to the welding point of the two pipes, so that the welding part can be air-cooled and cooled, which is convenient for subsequent processing or transportation. The adjusting screw 8 is rotated by turning the knob. Since the adjusting screw 8 is rotatably connected to the stop block 6, the stop block 6 can move in the direction close to or away from the moving block 5. The support seat 13 can be moved upward or downward by the first hydraulic cylinder 12. By adjusting the position of the stop block 6 and the support seat 13, when the lifting plate 15 moves upward, the stop block 6 can clamp and limit pipes of different sizes to meet the limiting requirements of pipes of different sizes.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic welding device for oil pipelines, comprising a hollow base (1), characterized in that: Two groups of symmetrically arranged first hydraulic cylinders (12) are fixedly mounted on the top of the hollow base (1); a support seat (13) is fixedly mounted on the telescopic ends of the two first hydraulic cylinders (12) in the same group; a second hydraulic cylinder (19) is fixedly mounted on the inner bottom of the hollow base (1); a lifting plate (15) is fixedly mounted on the top of the second hydraulic cylinder (19); clamping assemblies are arranged on both sides of the two support seats (13); the clamping assemblies include a fixed block (3) fixedly mounted on the top of the hollow base (1); a sliding plate (15) is provided through the fixed block (3) and is slidable therewith. Two round rods (21) are movably connected, one end of the two round rods (21) away from the support seat (13) is fixedly installed with a same first matching block (2), one end of the two round rods (21) close to the support seat (13) is fixedly installed with a same moving block (5), a tension spring (4) is fixedly connected between the moving block (5) and the fixed block (3), two telescopic rods (7) are fixedly installed on a side wall of the moving block (5) close to the support seat (13), the telescopic ends of the two telescopic rods (7) are fixedly connected with a same stop block (6), and a threaded connection is provided through the moving block (5). The hollow base (1) is provided with an adjusting screw (8), one end of the adjusting screw (8) close to the stop block (6) is rotatably connected to the stop block (6), a second matching block (11) is provided through the hollow base (1) and is slidably connected to the stop block (6), one end of the second matching block (11) located inside the hollow base (1) is fixedly mounted on the top of the lifting plate (15), and two groups of cooling components are provided on the hollow base (1), the cooling components include a cylinder (14) fixedly mounted on the bottom of the hollow base (1), a piston (16) is provided in the cylinder (14) and is slidably connected to the inner wall thereof, and the piston (16) ) and the lifting plate (15), a connecting rod (20) is fixedly connected between the hollow base (1), an air storage box (18) is arranged at the inner bottom of the hollow base (1), and a first connecting pipe (10) and a second connecting pipe (17) which are connected to the interior of the cylinder (14) are arranged on the cylinder (14), and the ends of the first connecting pipe (10) and the second connecting pipe (17) which are connected to the cylinder (14) are both located below the piston (16), and the end of the second connecting pipe (17) which is away from the cylinder (14) is connected to the air storage box (18), and the end of the first connecting pipe (10) which is away from the cylinder (14) is provided with an air outlet (9).

2. The automatic welding device for oil pipeline according to claim 1 is characterized in that: A knob is provided at one end of the adjusting screw rod (8) away from the stop block (6).

3. The automatic welding device for oil pipeline according to claim 1 is characterized in that: The cross-sections of the first matching block (2) and the second matching block (11) are both in the shape of a right-angled trapezoid.

4. The automatic welding device for oil pipeline according to claim 1 is characterized in that: Both the first connecting pipe (10) and the second connecting pipe (17) are provided with a one-way valve.

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