Large pipe diameter tee butt welding device and method

Abstract

The application provides a large-pipe-diameter tee joint welding device and method, relates to the technical field of pipeline welding, and comprises a horizontal support, one side of the horizontal support is left and right slidably connected with two main pipe fixing rings through a first manual sliding rail, the top of the horizontal support is left and right slidably connected with a vertical support through a first automatic sliding rail, one side of the vertical support is up and down slidably connected with a longitudinal support through a second automatic sliding rail, and the bottom of the longitudinal support is front and back slidably connected with a secondary pipe fixing ring through a second manual sliding rail; the main pipe fixing ring and the secondary pipe fixing ring are located on the same side; the main pipe fixing ring and the secondary pipe fixing ring are both formed by splicing a plurality of splicing units, the splicing units are provided in an S-shaped structure, and adjacent splicing units are connected through buckling. The application makes large-diameter pipeline assembly and welding work more accurate, efficient and convenient through a specific construction method.

Description

Technical Field

[0001] This invention relates to the field of pipeline welding technology, specifically to a butt welding device and method for large-diameter tees. Background Technology

[0002] Currently, the welding of tee joints in pipelines is often done manually with the aid of lifting equipment. However, manual labor is often inefficient and costly due to the need for various equipment. This is especially true for long pipelines, which are typically over one meter in diameter, making manual welding extremely difficult. Summary of the Invention

[0003] In view of the above-mentioned prior art, the present invention proposes a device and method for butt welding of large-diameter tees to solve the problem of low efficiency in the existing manual butt welding of tees.

[0004] This invention provides a large-diameter tee butt welding device, comprising a horizontal support, one side of which is slidably connected to two main pipe fixing rings via a first manual slide rail, the top of which is slidably connected to a vertical support via a first automatic slide rail, one side of which is slidably connected to a longitudinal support via a second automatic slide rail, and the bottom of which is slidably connected to a secondary pipe fixing ring via a second manual slide rail; the main pipe fixing ring and the secondary pipe fixing ring are located on the same side.

[0005] Both the main pipe fixing ring and the secondary pipe fixing ring are made of multiple splicing units. The splicing unit is set as an S-shaped structure, and adjacent splicing units are interlocked with each other.

[0006] Preferably, the splicing unit has an upper C-shaped groove and a lower C-shaped groove. The inner top surface and the inner bottom surface of the upper C-shaped groove are respectively provided with a first strong magnetic cathode plate and a second strong magnetic cathode plate. The inner bottom surface of the lower C-shaped groove is provided with a strong magnetic anode plate, and the outer bottom surface of the lower C-shaped groove is provided with a third strong magnetic cathode plate.

[0007] Preferably, the splicing unit is made of elastic rubber material, and the top of the upper C-shaped groove is provided with a Z-shaped pressing hole, and a through Z-shaped pressing rod is provided in the Z-shaped pressing hole, with the bottom of the Z-shaped pressing rod in close contact with the lower part of the lower C-shaped groove.

[0008] The present invention also proposes a butt welding method for the large-diameter tee butt welding device, comprising the following steps:

[0009] Step 1: After the tee joint of the main pipe is initially connected to the secondary pipe, select the appropriate number of splicing units for the main pipe fixing ring and the secondary pipe fixing ring according to the diameter of the main pipe and the secondary pipe. The two main pipe fixing rings are spliced ​​and installed on the main pipe respectively and located on both sides of the tee joint. The secondary pipe fixing rings are spliced ​​and installed on the secondary pipe. The installation position of the main pipe fixing ring and the secondary pipe fixing ring can be adjusted by the first manual slide rail and the second manual slide rail.

[0010] Step 2: Draw a center line on the top surface of the tee and two center lines on the sides of the tee on the main pipe; draw a center line on the top surface of the secondary pipe and two center lines on the sides of the secondary pipe on the secondary pipe.

[0011] Step 3: Install the first automatic spot welding machine and the first camera at the bottom of the vertical support above the center line of the top surface of the three-way opening, and install the second automatic spot welding machine and the second camera on the two main pipe fixing rings at the positions overlapping with the center lines of the two sides of the three-way opening.

[0012] Step 4: Connect the first automatic slide rail, the second automatic slide rail, the first automatic spot welding machine, the second automatic spot welding machine, the first camera, and the second camera to the control system. Control the first automatic slide rail and the second automatic slide rail to perform deep docking between the tee and the secondary pipe until, under the monitoring of the first camera and the second camera, the center line of the top surface of the tee is aligned with the center line of the top surface of the secondary pipe, and the center line of the side surface of the tee on the same side is aligned with the center line of the side surface of the secondary pipe.

[0013] Step 5: Control the first automatic spot welding machine and the second automatic spot welding machine to perform spot welding through the control system. After accurately positioning the tee port of the main pipe and the secondary pipe through the three spot welding points, the remaining welding work can be carried out.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention provides a large-diameter tee butt welding device and method, which accurately connects the tee of the main pipeline to the auxiliary pipeline through an auxiliary line, and uses three-point spot welding for initial positioning and fixation. Furthermore, the control system automatically adjusts the connection and spot welding, making the tee butt welding work more accurate, efficient and fast, and eliminating the need for various equipment and multiple personnel, thus greatly reducing the cost of welding work. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the butt welding device for large-diameter tees in an embodiment of the present invention.

[0016] Figure 2 This is a schematic diagram of the connection between adjacent splicing units in an embodiment of the present invention.

[0017] Figure 3 , 4 This is a schematic diagram of auxiliary lines in an embodiment of the present invention.

[0018] In the diagram, 1. Horizontal support; 2. First manual slide rail; 3. Main pipe fixing ring; 4. First automatic slide rail; 5. Vertical support; 6. Second automatic slide rail; 7. Longitudinal support; 8. Second manual slide rail; 9. Secondary pipe fixing ring; 10. Splicing unit; 11. Upper C-groove; 12. Lower C-groove; 13. First strong magnetic cathode plate; 14. Second strong magnetic cathode plate; 15. Strong magnetic anode plate; 16. Third strong magnetic cathode plate; 17. Z-shaped pressing rod; 18. Main pipe; 19. Secondary pipe; 20. Centerline of the top surface of the tee opening; 21. Centerline of the side surface of the tee opening; 22. Centerline of the top surface of the secondary pipe; 23. Centerline of the side surface of the secondary pipe; 26. First automatic spot welding machine; 27. Second automatic spot welding machine. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below with reference to specific embodiments.

[0020] Example: Figure 1-4 The large-diameter tee butt welding device shown includes a horizontal support 1. One side of the horizontal support 1 is slidably connected to two main pipe fixing rings 3 via a first manual slide rail 2. The top of the horizontal support 1 is slidably connected to a vertical support 5 via a first automatic slide rail 4. One side of the vertical support 5 is slidably connected to a longitudinal support 7 via a second automatic slide rail 6. The bottom of the longitudinal support 7 is slidably connected to a secondary pipe fixing ring 9 via a second manual slide rail 8. The main pipe fixing ring 3 and the secondary pipe fixing ring 9 are located on the same side.

[0021] Furthermore, both the main pipe fixing ring 3 and the secondary pipe fixing ring 9 are assembled from multiple splicing units 10. The splicing unit 10 is configured with an S-shaped structure, and adjacent splicing units 10 are interlocked with each other. The splicing unit 10 has an upper C-shaped groove 11 and a lower C-shaped groove 12. The inner top surface and inner bottom surface of the upper C-shaped groove 11 are respectively provided with a first strong magnetic cathode plate 13 and a second strong magnetic cathode plate 14. The inner bottom surface of the lower C-shaped groove 12 is provided with a strong magnetic anode plate 15, and the outer bottom surface of the lower C-shaped groove 12 is provided with a third strong magnetic cathode plate 16.

[0022] When splicing the main pipe fixing ring 3 and the secondary pipe fixing ring 9, the appropriate number of splicing units 10 can be selected according to the diameter of the pipe. Adjacent splicing units 10 are connected to each other by upper C-shaped grooves 11 and lower C-shaped grooves 12. Due to the presence of anode and cathode plates, the adjacent upper C-shaped grooves 11 and lower C-shaped grooves 12 are more tightly connected under the effect of like poles repelling and unlike poles attracting, thereby improving the stability of the main pipe fixing ring 3 and the secondary pipe fixing ring 9.

[0023] Furthermore, the splicing unit 10 is made of elastic rubber material, and the top of the upper C-shaped groove 11 is provided with a Z-shaped pressing hole, in which a through Z-shaped pressing rod 17 is provided, and the bottom of the Z-shaped pressing rod 17 is in close contact with the lower part of the lower C-shaped groove 12.

[0024] When assembling and disassembling the main pipe fixing ring 3 and the secondary pipe fixing ring 9, pressing down on the pressing rod 17 can help to disconnect the connection between adjacent splicing units 10, thereby improving the ease of installation and disassembly of the main pipe fixing ring 3 and the secondary pipe fixing ring 9.

[0025] Furthermore, the butt welding method based on this large-diameter tee butt welding device includes the following steps:

[0026] Step 1: After the tee of the main pipe 18 is initially connected to the secondary pipe 19, select the appropriate number of splicing units 10 for the main pipe fixing ring 3 and the secondary pipe fixing ring 9 according to the diameter of the main pipe 18 and the secondary pipe 19. The two main pipe fixing rings 3 are spliced ​​and installed on the main pipe 18 and located on both sides of the tee. The secondary pipe fixing ring 9 is spliced ​​and installed on the secondary pipe 19 near the tee. The installation position of the main pipe fixing ring 3 and the secondary pipe fixing ring 9 can be adjusted by the first manual slide rail 2 and the second manual slide rail 8.

[0027] Step 2: Draw a center line 20 on the top surface of the tee and two center lines 21 on the sides of the tee on the main pipe 18; draw a center line 22 on the top surface of the secondary pipe and two center lines 23 on the sides of the secondary pipe on the secondary pipe 19.

[0028] Step 3: Install the first automatic spot welding machine 26 and the first camera at the bottom of the vertical bracket 7 above the center line 20 of the top surface of the three-way opening, and install the second automatic spot welding machine 27 and the second camera on the two main pipe fixing rings 3 at the positions overlapping with the two center lines 21 of the sides of the three-way opening.

[0029] Step 4: Connect the first automatic slide rail 4, the second automatic slide rail 6, the first automatic spot welding machine 26, the second automatic spot welding machine 27, the first camera, and the second camera to the control system. Control the first automatic slide rail 4 and the second automatic slide rail 6 to perform deep docking between the tee and the secondary pipe 19 until, under the monitoring of the first camera and the second camera, the center line 20 of the top surface of the tee is aligned with the center line 22 of the top surface of the secondary pipe, and the center line 21 of the side surface of the tee on the same side is aligned with the center line 23 of the side surface of the secondary pipe.

[0030] Step 5: Control the first automatic spot welding machine 26 and the second automatic spot welding machine 27 through the control system to perform spot welding. After accurately positioning the tee port of the main pipe 18 and the auxiliary pipe 19 through the three spot welding points, the remaining welding work can be carried out.

[0031] In this embodiment, the tee joint of the main pipe 18 is accurately connected to the secondary pipe 19 using an auxiliary line, and three-point spot welding is used for initial positioning and fixation. The connection and spot welding are automatically adjusted by the control system, making the tee joint welding work more accurate, efficient and fast.

[0032] The above are merely embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent solutions made using the contents of the present invention specification, whether directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of the present invention.

Claims

1. A butt welding device for large-diameter tees, characterized in that, The system includes a horizontal support, one side of which is slidably connected to two main pipe fixing rings via a first manual slide rail; the top of the horizontal support is slidably connected to a vertical support via a first automatic slide rail; one side of the vertical support is slidably connected to a longitudinal support via a second automatic slide rail; and the bottom of the longitudinal support is slidably connected to a secondary pipe fixing ring via a second manual slide rail; the main pipe fixing ring and the secondary pipe fixing ring are located on the same side. Both the main pipe fixing ring and the secondary pipe fixing ring are made of multiple splicing units. The splicing unit is set as an S-shaped structure, and adjacent splicing units are interlocked with each other. The splicing unit has an upper C-shaped groove and a lower C-shaped groove. The upper C-shaped groove has a first strong magnetic cathode plate and a second strong magnetic cathode plate respectively disposed on the inner top surface and the inner bottom surface. The lower C-shaped groove has a strong magnetic anode plate disposed on the inner bottom surface. The lower C-shaped groove has a third strong magnetic cathode plate disposed on the outer bottom surface. The splicing unit is made of elastic rubber material. The top of the upper C-shaped groove is provided with a Z-shaped pressing hole, and a through Z-shaped pressing rod is provided in the Z-shaped pressing hole. The bottom of the Z-shaped pressing rod is in close contact with the lower part of the lower C-shaped groove.

2. The butt welding method based on the large-diameter tee butt welding device according to claim 1, characterized in that, Includes the following steps: Step 1: After the tee joint of the main pipe is initially connected to the secondary pipe, select the appropriate number of splicing units for the main pipe fixing ring and the secondary pipe fixing ring according to the diameter of the main pipe and the secondary pipe. The two main pipe fixing rings are spliced ​​and installed on the main pipe and located on both sides of the tee joint. The secondary pipe fixing rings are spliced ​​and installed on the secondary pipe. The installation positions of the main pipe fixing ring and the secondary pipe fixing ring are adjusted by the first manual slide rail and the second manual slide rail. Step 2: Draw a center line on the top surface of the tee and two center lines on the sides of the tee on the main pipe; draw a center line on the top surface of the secondary pipe and two center lines on the sides of the secondary pipe on the secondary pipe. Step 3: Install the first automatic spot welding machine and the first camera at the bottom of the vertical support above the center line of the top surface of the three-way opening, and install the second automatic spot welding machine and the second camera on the two main pipe fixing rings at the positions overlapping with the center lines of the two sides of the three-way opening. Step 4: Connect the first automatic slide rail, the second automatic slide rail, the first automatic spot welding machine, the second automatic spot welding machine, the first camera, and the second camera to the control system. Control the first automatic slide rail and the second automatic slide rail to perform deep docking between the tee and the secondary pipe until, under the monitoring of the first camera and the second camera, the center line of the top surface of the tee is aligned with the center line of the top surface of the secondary pipe, and the center line of the side surface of the tee on the same side is aligned with the center line of the side surface of the secondary pipe. Step 5: Control the first automatic spot welding machine and the second automatic spot welding machine to perform spot welding through the control system. After accurately positioning the tee port of the main pipe and the secondary pipe through the three spot welding points, the remaining welding work can be carried out.

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